uname_S := MINGW
endif
-CPPFLAGS += -Ic-ares/
+CPPFLAGS += -Iinclude
+
CARES_OBJS =
-CARES_OBJS += c-ares/ares__close_sockets.o
-CARES_OBJS += c-ares/ares__get_hostent.o
-CARES_OBJS += c-ares/ares__read_line.o
-CARES_OBJS += c-ares/ares__timeval.o
-CARES_OBJS += c-ares/ares_cancel.o
-CARES_OBJS += c-ares/ares_data.o
-CARES_OBJS += c-ares/ares_destroy.o
-CARES_OBJS += c-ares/ares_expand_name.o
-CARES_OBJS += c-ares/ares_expand_string.o
-CARES_OBJS += c-ares/ares_fds.o
-CARES_OBJS += c-ares/ares_free_hostent.o
-CARES_OBJS += c-ares/ares_free_string.o
-CARES_OBJS += c-ares/ares_gethostbyaddr.o
-CARES_OBJS += c-ares/ares_gethostbyname.o
-CARES_OBJS += c-ares/ares_getnameinfo.o
-CARES_OBJS += c-ares/ares_getopt.o
-CARES_OBJS += c-ares/ares_getsock.o
-CARES_OBJS += c-ares/ares_init.o
-CARES_OBJS += c-ares/ares_library_init.o
-CARES_OBJS += c-ares/ares_llist.o
-CARES_OBJS += c-ares/ares_mkquery.o
-CARES_OBJS += c-ares/ares_nowarn.o
-CARES_OBJS += c-ares/ares_options.o
-CARES_OBJS += c-ares/ares_parse_a_reply.o
-CARES_OBJS += c-ares/ares_parse_aaaa_reply.o
-CARES_OBJS += c-ares/ares_parse_mx_reply.o
-CARES_OBJS += c-ares/ares_parse_ns_reply.o
-CARES_OBJS += c-ares/ares_parse_ptr_reply.o
-CARES_OBJS += c-ares/ares_parse_srv_reply.o
-CARES_OBJS += c-ares/ares_parse_txt_reply.o
-CARES_OBJS += c-ares/ares_process.o
-CARES_OBJS += c-ares/ares_query.o
-CARES_OBJS += c-ares/ares_search.o
-CARES_OBJS += c-ares/ares_send.o
-CARES_OBJS += c-ares/ares_strcasecmp.o
-CARES_OBJS += c-ares/ares_strdup.o
-CARES_OBJS += c-ares/ares_strerror.o
-CARES_OBJS += c-ares/ares_timeout.o
-CARES_OBJS += c-ares/ares_version.o
-CARES_OBJS += c-ares/ares_writev.o
-CARES_OBJS += c-ares/bitncmp.o
-CARES_OBJS += c-ares/inet_net_pton.o
-CARES_OBJS += c-ares/inet_ntop.o
+CARES_OBJS += src/ares/ares__close_sockets.o
+CARES_OBJS += src/ares/ares__get_hostent.o
+CARES_OBJS += src/ares/ares__read_line.o
+CARES_OBJS += src/ares/ares__timeval.o
+CARES_OBJS += src/ares/ares_cancel.o
+CARES_OBJS += src/ares/ares_data.o
+CARES_OBJS += src/ares/ares_destroy.o
+CARES_OBJS += src/ares/ares_expand_name.o
+CARES_OBJS += src/ares/ares_expand_string.o
+CARES_OBJS += src/ares/ares_fds.o
+CARES_OBJS += src/ares/ares_free_hostent.o
+CARES_OBJS += src/ares/ares_free_string.o
+CARES_OBJS += src/ares/ares_gethostbyaddr.o
+CARES_OBJS += src/ares/ares_gethostbyname.o
+CARES_OBJS += src/ares/ares_getnameinfo.o
+CARES_OBJS += src/ares/ares_getopt.o
+CARES_OBJS += src/ares/ares_getsock.o
+CARES_OBJS += src/ares/ares_init.o
+CARES_OBJS += src/ares/ares_library_init.o
+CARES_OBJS += src/ares/ares_llist.o
+CARES_OBJS += src/ares/ares_mkquery.o
+CARES_OBJS += src/ares/ares_nowarn.o
+CARES_OBJS += src/ares/ares_options.o
+CARES_OBJS += src/ares/ares_parse_a_reply.o
+CARES_OBJS += src/ares/ares_parse_aaaa_reply.o
+CARES_OBJS += src/ares/ares_parse_mx_reply.o
+CARES_OBJS += src/ares/ares_parse_ns_reply.o
+CARES_OBJS += src/ares/ares_parse_ptr_reply.o
+CARES_OBJS += src/ares/ares_parse_srv_reply.o
+CARES_OBJS += src/ares/ares_parse_txt_reply.o
+CARES_OBJS += src/ares/ares_process.o
+CARES_OBJS += src/ares/ares_query.o
+CARES_OBJS += src/ares/ares_search.o
+CARES_OBJS += src/ares/ares_send.o
+CARES_OBJS += src/ares/ares_strcasecmp.o
+CARES_OBJS += src/ares/ares_strdup.o
+CARES_OBJS += src/ares/ares_strerror.o
+CARES_OBJS += src/ares/ares_timeout.o
+CARES_OBJS += src/ares/ares_version.o
+CARES_OBJS += src/ares/ares_writev.o
+CARES_OBJS += src/ares/bitncmp.o
+CARES_OBJS += src/ares/inet_net_pton.o
+CARES_OBJS += src/ares/inet_ntop.o
ifneq (,$(findstring MINGW,$(uname_S)))
include config-mingw.mk
+++ /dev/null
-c-ares is based on ares, and these are the people that have worked on it since
-the fork was made:
-
-Alexander Lazic
-Alexey Simak
-Andreas Rieke
-Ashish Sharma
-Brad House
-Brad Spencer
-Bram Matthys
-Dan Fandrich
-Daniel Stenberg
-Dirk Manske
-Dominick Meglio
-Doug Goldstein
-Duncan Wilcox
-Eino Tuominen
-Erik Kline
-George Neill
-Gisle Vanem
-Guilherme Balena Versiani
-Gunter Knauf
-Henrik Stoerner
-James Bursa
-Michael Wallner
-Nick Mathewson
-Phil Blundell
-Ravi Pratap
-Robin Cornelius
-Sebastian at basti79.de
-Shmulik Regev
-Steinar H. Gunderson
-Tofu Linden
-Vlad Dinulescu
-William Ahern
-Yang Tse
-liren at vivisimo.com
+++ /dev/null
- Changelog for the c-ares project
-
-Version 1.7.4 (December 9, 2010)
-
-Changed:
-
- o local-bind: Support binding to local interface/IPs, see
- ares_set_local_ip4, ares_set_local_ip6, ares_set_local_dev
-
-Fixed:
-
- o memory leak in ares_getnameinfo
- o add missing break that caused get_ares_servers to fail
- o ares_parse_a_reply: fix CNAME response parsing
- o init_by_options: don't copy an empty sortlist
- o Replaced uint32_t with unsigned int to fix broken builds
- on a couple of platforms
- o Fix lookup with HOSTALIASES set
- o adig: fix NAPTR parsing
- o compiler warning cleanups
-
-Version 1.7.3 (June 11, 2010)
-
-Fixed:
-
- o builds on Android
- o now includes all files necessary to build it (1.7.2 lacked a file)
-
-Version 1.7.2 (June 10, 2010)
-
-Changed:
-
- o Added ares_parse_mx_reply()
-
-Fixed:
-
- o ares_init: Last, not first instance of domain or search should win
- o improve alternative definition of bool
- o fix VS2010 compiler warnings
-
-
-Version 1.7.1 (Mar 23, 2010)
-
-* May 31, 2010 (Jakub Hrozek)
-- Use the last instance of domain/search, not the first one
-
-* March 23, 2010 (Daniel Stenberg)
-- We switched from CVS to git. See http://github.com/bagder/c-ares
-
-* March 5, 2010 (Daniel Stenberg)
-- Daniel Johnson provided fixes for building with the clang compiler.
-
-* March 5, 2010 (Yang Tse)
-- Added IPv6 name servers support. Implementation has been based on code,
- comments and feedback provided November and December of 2008 by Daniel
- Stenberg, Gregor Jasny, Phil Blundell and myself, December 2009 by Cedric
- Bail, and February 2010 by Jakub Hrozek on the c-ares mailing list. On
- March I reviewed all that, selected the best of each, and adjusted or
- extended parts of it to make the best fit.
-
- The external and visible result of all this is that two new functions are
- added to the external API, ares_get_servers() and ares_set_servers(), which
- becomes now the preferred way of getting and setting name servers for any
- ares channel as these support both IPv4 and IPv6 name servers.
-
- In order to not break ABI compatibility, ares_init_options() with option
- mask ARES_OPT_SERVERS and ares_save_options() may still be used in code
- which is intended to run on IPv4-only stacks. But remember that these
- functions do not support IPv6 name servers. This implies that if the user
- is capable of defining or providing an IPv6 name server, and the app is
- using ares_init_options() or ares_save_options() at some point to handle
- the name servers, the app will likely lose IPv6 name servers.
-
-* January 28, 2010 (Daniel Stenberg)
-- Tommie Gannert pointed out a silly bug in ares_process_fd() since it didn't
- check for broken connections like ares_process() did. Based on that, I
- merged the two functions into a single generic one with two front-ends.
-
-* December 29, 2009 (Yang Tse)
-- Laszlo Tamas Szabo adjusted Makefile.msvc compiler options so that where
- run-time error checks enabling compiler option /GZ was used it is replaced
- with equivalent /RTCsu for Visual Studio 2003 and newer versions. Option
- /GX is replaced with equivalent /EHsc for all versions. Also fixed socket
- data type for internal configure_socket function.
-
-* December 21, 2009 (Yang Tse)
-- Ingmar Runge noticed that Windows config-win32.h configuration file
- did not include a definition for HAVE_CLOSESOCKET which resulted in
- function close() being inappropriately used to close sockets.
-
-Version 1.7.0 (Nov 30, 2009)
-
-* November 26, 2009 (Yang Tse)
-- Larry Lansing fixed ares_parse_srv_reply to properly parse replies
- which might contain non-SRV answers, skipping over potential non-SRV
- ones such as CNAMEs.
-
-* November 23, 2009 (Yang Tse)
-- Changed naming convention for c-ares libraries built with MSVC, details
- and build instructions provided in README.msvc file.
-
-* November 22, 2009 (Yang Tse)
-- Jakub Hrozek fixed more function prototypes in man pages to sync them
- with the ones declared in ares.h
-
-- Jakub Hrozek renamed addrttl and addr6ttl structs to ares_addrttl and
- ares_addr6ttl in order to prevent name space pollution, along with
- necessary changes to code base and man pages.This change does not break
- ABI, there is no need to recompile existing applications. But existing
- applications using these structs with the old name will need source code
- adjustments when recompiled using c-ares 1.7.0.
-
-* November 21, 2009 (Yang Tse)
-- Added manifest stuff to Makefile.msvc.
-
-* November 20, 2009 (Yang Tse)
-- Fixed several function prototypes in man pages that were out of sync
- with the ones declared in ares.h. Added ares_free_data() along with
- man page. Updated ares_parse_srv_reply() and ares_parse_txt_reply()
- with changes from Jakub Hrozek making these now return linked lists
- instead of arrays, and merging the ares_free_data() adjustments.
-
-* November 10, 2009 (Yang Tse)
-- Updated MSVC 6.0 project files to match settings from Makefile.msvc.
-
-* November 9, 2009 (Yang Tse)
-- Makefile.msvc is now the reference method to build c-ares and sample
- programs with any MSVC compiler or MS Visual Studio version. If no
- option or target are specified it builds dynamic and static c-ares
- libraries in debug and release flavours and also builds all sample
- programs using each of the different c-ares libraries.
-
-* November 2, 2009 (Yang Tse)
-- Renamed c-ares setup.h to ares_setup.h
-
-* October 31, 2009 (Yang Tse)
-- Symbol hiding configure options are named now --enable-symbol-hiding
- and --disable-symbol-hiding in an attempt to make them less ambiguous.
-
-* October 30, 2009 (Yang Tse)
-- Many fixes for ares_parse_txt_reply()
-
-* October 29, 2009 (Daniel Stenberg)
-- Jakub Hrozek added ares_parse_txt_reply() for TXT parsing
-
-* October 29, 2009 (Yang Tse)
-- Updated MSVC 6.0 workspace and project files that allows building
- dynamic and static c-ares libraries in debug and release flavours.
- Additionally each of the three sample programs is built against
- each of the four possible c-ares libraries, generating all this
- a total number of 12 executables and 4 libraries.
-
-* October 28, 2009 (Yang Tse)
-- Initial step towards the ability to reduce c-ares exported symbols
- when built as a shared library based on the 'visibility' attribute
- for GNUC and Intel compilers and based on __global for Sun compilers,
- taking also in account __declspec function decoration for Win32 and
- Symbian DLL's.
-
-* October 27, 2009 (Yang Tse)
-- Fixed Pelles C Win32 target compilation issues.
-
-* October 23, 2009 (Yang Tse)
-- John Engelhart noticed an unreleased problem relative to a duplicate
- ARES_ECANCELLED error code value and missing error code description.
-
-* October 7, 2009 (Yang Tse)
-- Overhauled ares__get_hostent() Fixing out of bounds memory overwrite
- triggered with malformed /etc/hosts file. Improving parsing of /etc/hosts
- file. Validating requested address family. Ensuring that failures always
- return a NULL pointer. Adjusting header inclusions.
-
-* October 6, 2009 (Yang Tse)
-- Fix ssize_t redefinition errors on WIN64 reported by Alexey Simak.
-
-* September 29, 2009 (Yang Tse)
-- Make configure script also check if _REENTRANT definition is required to
- make errno available as a preprocessor macro.
-
-* September 7, 2009 (Yang Tse)
-- Add T_SRV portability check to ares_parse_srv_reply.c
-
-* 4 Sep 2009 (Daniel Stenberg)
-- Jakub Hrozek added ares_parse_srv_reply() for SRV parsing
-
-* 3 Aug 2009 (Daniel Stenberg)
-- Joshua Kwan fixed the init routine to fill in the defaults for stuff that
- fails to get inited by other means. This fixes a case of when the c-ares
- init fails when internet access is fone.
-
-- Timo Teras changed the reason code used in the resolve callback done when
- ares_cancel() is used, to be ARES_ECANCELLED instead of ARES_ETIMEOUT to
- better allow the callback to know what's happening.
-
-* 14 Jul 2009 (Guenter Knauf)
-- renamed generated config.h to ares_config.h to avoid any future clashes
- with config.h from other projects.
-
-* June 20 2009 (Yang Tse)
-- Refactor how libraries are checked for connect() function in configure
- script and check for connect() as it is done for other functions.
-
-* June 19 2009 (Yang Tse)
-- Make sclose() function-like macro definition used to close a socket,
- now solely based on HAVE_CLOSESOCKET and HAVE_CLOSESOCKET_CAMEL
- config file preprocessor definitions
-
-* June 18 2009 (Yang Tse)
-- Add CloseSocket camel case function check for configure script.
-
-* June 17 2009 (Yang Tse)
-- Check for socket() and closesocket() as it is done for other functions
- in configure script.
-
-* June 11 2009 (Yang Tse)
-- Modified buildconf so that when automake runs it copies missing files
- instead of symlinking them.
-
-* June 8 2009 (Yang Tse)
-- Removed buildconf.bat from release and daily snapshot archives. This
- file is only for CVS tree checkout builds.
-
-* May 26 2009 (Yang Tse)
-- Added --enable-curldebug configure option to enable and disable building
- with the low-level curl debug memory tracking 'feature' to allow decoupled
- setting from --enable-debug, allowing again to build c-ares independently
- out of the CVS tree.
-
- For the c-ares library option --enable-debug enables debug build features
- which are _not_ related with memory tracking. For the c-ares library when
- --enable-debug is given it does not enable the memory tracking feature. If
- you wish to enable the curl debug memory tracking you must use configure
- option --enable-curldebug explicitily to do so.
-
- Internally, definition of preprocessor symbol DEBUGBUILD restricts code
- which is only compiled for debug enabled builds. And symbol CURLDEBUG is
- used to differentiate code which is _only_ used for memory tracking.
-
- Make ares_init(), ares_dup() and ares_init_options() fail returning
- ARES_ENOTINITIALIZED if library initialization has not been performed
- calling ares_library_init().
-
-* May 20 2009 (Yang Tse)
-- Added ares_library_init() and ares_library_cleanup() man pages.
-
-* May 19 2009 (Yang Tse)
-- Introduced ares_library_init() and ares_library_cleanup() functions.
-
- This is an API and ABI break for Win32/64 systems. Non-Win32/64 build targets
- using c-ares 1.7.0 can still survive without calling these functions. Read all
- the details on ares_library_init(3) and ares_library_cleanup(3) man pages that
- are included.
-
- curl/libcurl 7.19.5 is fully compatible with c-ares 1.7.0 on all systems.
-
- In order to use c-ares 1.7.0 with curl/libcurl on Win32/64 systems it is
- required that curl/libcurl is 7.19.5 or newer. In other words, it is not
- possible on Win32/64 to use c-ares 1.7.0 with a curl/libcurl version less
- than 7.19.5
-
-* May 11 2009 (Daniel Stenberg)
-- Gregor Jasny made c-ares link with libtool 's -export-symbols-regex option to
- only expose functions starting with ares_.
-
-* May 7 2009 (Yang Tse)
-- Fix an m4 overquoting triggering a spurious 'AS_TR_CPP' symbol definition
- attempt in generated config.h
-
-* May 2 2009 (Yang Tse)
-- Use a build-time configured ares_socklen_t data type instead of socklen_t.
-
-* April 21 2009 (Yang Tse)
-- Moved potential inclusion of system's malloc.h and memory.h header files to
- setup_once.h. Inclusion of each header file is based on the definition of
- NEED_MALLOC_H and NEED_MEMORY_H respectively.
-
-* March 11 2009 (Yang Tse)
-- Japheth Cleaver fixed acountry.c replacing u_long with unsigned long.
-
-* February 20 2009 (Yang Tse)
-- Do not halt compilation when using VS2008 to build a Windows 2000 target.
-
-* February 3 2009 (Phil Blundell)
-- If the server returns garbage or nothing at all in response to an AAAA query,
- go on and ask for A records anyway.
-
-* January 31 2009 (Daniel Stenberg)
-- ares_gethostbyname() now accepts 'AF_UNSPEC' as a family for resolving
- either AF_INET6 or AF_INET. It works by accepting any of the looksups in the
- hosts file, and it resolves the AAAA field with a fallback to A.
-
-* January 14 2009 (Daniel Stenberg)
-- ares.h no longer uses the HAVE_STRUCT_IN6_ADDR define check, but instead it
- now declares the private struct ares_in6_addr for all systems instead of
- relying on one possibly not present in the system.
-
-* January 13 2009 (Phil Blundell)
-- ares__send_query() now varies the retry timeout pseudo-randomly to avoid
- packet storms when several queries were started at the same time.
-
-* January 11 2009 (Daniel Stenberg)
-- Phil Blundell added the internal function ares__expand_name_for_response()
- that is now used by the ares_parse_*_reply() functions instead of the
- ares_expand_name() simply to easier return ARES_EBADRESP for the cases where
- the name expansion fails as in responses that really isn't expected.
-
-Version 1.6.0 (Dec 9, 2008)
-
-* December 9 2008 (Gisle Vanem)
-
- Fixes for Win32 targets using the Watt-32 tcp/ip stack.
-
-* Dec 4 2008 (Daniel Stenberg)
-
- Gregor Jasny provided the patch that introduces ares_set_socket_callback(),
- and I edited it to also get duped by ares_dup().
-
-* Dec 3 2008 (Daniel Stenberg)
-
- API changes:
-
- I made sure the public ares_config struct looks like before and yet it
- supports the ROTATE option thanks to c-ares now storing the "optmask"
- internally. Thus we should be ABI compatible with the past release(s)
- now. My efforts mentioned below should not break backwards ABI compliance.
-
- Here's how I suggest we proceed with the API:
-
- ares_init() will be primary "channel creator" function.
-
- ares_init_options() will continue to work exactly like now and before. For
- starters, it will be the (only) way to set the existing options.
-
- ares_save_options() will continue to work like today, but will ONLY save
- options that you can set today (including ARES_OPT_ROTATE actually) but new
- options that we add may not be saved with this.
-
- Instead we introduce:
-
- ares_dup() that instead can make a new channel and clone the config used
- from an existing channel. It will then clone all config options, including
- future new things we add.
-
- ares_set_*() style functions that set (new) config options. As a start we
- simply add these for new functionality, but over time we can also introduce
- them for existing "struct ares_options" so that we can eventually deprecate
- the two ares_*_options() functions.
-
- ares_get_*() style functions for extracting info from a channel handle that
- should be used instead of ares_save_options().
-
-* Nov 26 2008 (Yang Tse)
-- Brad Spencer provided changes to allow buildconf to work on OS X.
-
-- Gerald Combs fixed a bug in ares_parse_ptr_reply() which would cause a
- buffer to shrink instead of expand if a reply contained 8 or more records.
-
-* Nov 25 2008 (Yang Tse)
-- In preparation for the upcomming IPv6 nameservers patch, the internal
- ares_addr union is now changed into an internal struct which also holds
- the address family.
-
-* Nov 19 2008 (Daniel Stenberg)
-- Brad Spencer brought the new function ares_gethostbyname_file() which simply
- resolves a host name from the given file, using the regular hosts syntax.
-
-* Nov 1 2008 (Daniel Stenberg)
-- Carlo Contavalli added support for the glibc "rotate" option, as documented
- in man resolv.conf:
-
- causes round robin selection of nameservers from among those listed. This
- has the effect of spreading the query load among all listed servers, rather
- than having all clients try the first listed server first every time.
-
- You can enable it with ARES_OPT_ROTATE
-
-* Oct 21 2008 (Yang Tse)
- Charles Hardin added handling of EINPROGRESS for UDP connects.
-
-* Oct 18 2008 (Daniel Stenberg)
- Charles Hardin made adig support a regular numerical dotted IP address for the
- -s option as well.
-
-* Oct 7 2008 (Yang Tse)
-- Added --enable-optimize configure option to enable and disable compiler
- optimizations to allow decoupled setting from --enable-debug.
-
-* Oct 2 2008 (Yang Tse)
-- Added --enable-warnings configure option to enable and disable strict
- compiler warnings to allow decoupled setting from --enable-debug.
-
-* Sep 17 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of "nameser.h" to any
- system that lacks arpa/nameser.h or arpa/nameser_compat.h header files.
-
-* Sep 16 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of ares_writev to any
- system that lacks the writev function.
-
-* Sep 15 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of ares_strcasecmp to any
- system that lacks the strcasecmp function.
-
-- Improve configure detection of some string functions.
-
-* Sep 11 2008 (Yang Tse)
-- Code reorganization to allow internal/private use of ares_strdup to any
- system that lacks the strdup function.
-
-Version 1.5.3 (Aug 29, 2008)
-
-* Aug 25 2008 (Yang Tse)
-- Improvement by Brad House:
-
- This patch addresses an issue in which a response could be sent back to the
- source port of a client from a different address than the request was made to.
- This is one form of a DNS cache poisoning attack.
-
- The patch simply uses recvfrom() rather than recv() and validates that the
- address returned from recvfrom() matches the address of the server we have
- connected to. Only necessary on UDP sockets as they are connection-less, TCP
- is unaffected.
-
-- Fix by George Neill:
- Fixed compilation of acountry sample application failure on some systems.
-
-* Aug 4 2008 (Daniel Stenberg)
-- Fix by Tofu Linden:
-
- The symptom:
- * Users (usually, but not always) on 2-Wire routers and the Comcast service
- and a wired connection to their router would find that the second and
- subsequent DNS lookups from fresh processes using c-ares to resolve the same
- address would cause the process to never see a reply (it keeps polling for
- around 1m15s before giving up).
-
- The repro:
- * On such a machine (and yeah, it took us a lot of QA to find the systems
- that reproduce such a specific problem!), do 'ahost www.secondlife.com',
- then do it again. The first process's lookup will work, subsequent lookups
- will time-out and fail.
-
- The cause:
- * init_id_key() was calling randomize_key() *before* it initialized
- key->state, meaning that the randomness generated by randomize_key() is
- immediately overwritten with deterministic values. (/dev/urandom was also
- being read incorrectly in the c-ares version we were using, but this was
- fixed in a later version.)
- * This makes the stream of generated query-IDs from any new c-ares process
- be an identical and predictable sequence of IDs.
- * This makes the 2-Wire's default built-in DNS server detect these queries
- as probable-duplicates and (erroneously) not respond at all.
-
-
-* Aug 4 2008 (Yang Tse)
-- Autoconf 2.62 has changed the behaviour of the AC_AIX macro which we use.
- Prior versions of autoconf defined _ALL_SOURCE if _AIX was defined. 2.62
- version of AC_AIX defines _ALL_SOURCE and other four preprocessor symbols
- no matter if the system is AIX or not. To keep the traditional behaviour,
- and an uniform one across autoconf versions AC_AIX is replaced with our
- own internal macro CARES_CHECK_AIX_ALL_SOURCE.
-
-* Aug 1 2008 (Yang Tse)
-- Configure process now checks if the preprocessor _REENTRANT symbol is already
- defined. If it isn't currently defined a set of checks are performed to test
- if its definition is required to make visible to the compiler a set of *_r
- functions. Finally, if _REENTRANT is already defined or needed it takes care
- of making adjustments necessary to ensure that it is defined equally for the
- configure process tests and generated config file.
-
-* Jul 20 2008 (Yang Tse)
-- When recvfrom prototype uses a void pointer for arguments 2, 5 or 6 this will
- now cause the definition, as appropriate, of RECVFROM_TYPE_ARG2_IS_VOID,
- RECVFROM_TYPE_ARG5_IS_VOID or RECVFROM_TYPE_ARG6_IS_VOID.
-
-* Jul 17 2008 (Yang Tse)
-- RECVFROM_TYPE_ARG2, RECVFROM_TYPE_ARG5 and RECVFROM_TYPE_ARG6 are now defined
- to the data type pointed by its respective argument and not the pointer type.
-
-* Jul 16 2008 (Yang Tse)
-- Improved configure detection of number of arguments for getservbyport_r.
- Detection is now based on compilation checks instead of linker ones.
-
-- Configure process now checks availability of recvfrom() socket function and
- finds out its return type and the types of its arguments. Added definitions
- for non-configure systems config files, and introduced macro sreadfrom which
- will be used on udp sockets as a recvfrom() wrapper in the future.
-
-* Jul 15 2008 (Yang Tse)
-- Introduce definition of _REENTRANT symbol in setup.h to improve library
- usability. Previously the configure process only used the AC_SYS_LARGEFILE
- macro for debug builds, now it is also used for non-debug ones enabling the
- use of configure options --enable-largefile and --disable-largefile which
- might be needed for library compatibility. Remove checking the size of
- curl_off_t, it is no longer needed.
-
-* Jul 3 2008 (Daniel Stenberg)
-- Phil Blundell: If you ask ares_gethostbyname() to do an AF_INET6 lookup and
- the target host has only A records, it automatically falls back to an
- AF_INET lookup and gives you the A results. However, if the target host has
- a CNAME record, this behaviour is defeated since the original query does
- return some data even though ares_parse_aaa_reply() doesn't consider it
- relevant. Here's a small patch to make it behave the same with and without
- the CNAME.
-
-* Jul 2 2008 (Yang Tse)
-- Fallback to gettimeofday when monotonic clock is unavailable at run-time.
-
-* Jun 30 2008 (Daniel Stenberg)
-
-- As was pointed out to me by Andreas Schuldei, the MAXHOSTNAMELEN define is
- not posix or anything and thus c-ares failed to build on hurd (and possibly
- elsewhere). The define was also somewhat artificially used in the windows
- port. Now, I instead rewrote the use of gethostbyname to enlarge the host
- name buffer in case of need and totally avoid the use of the MAXHOSTNAMELEN
- define. I thus also removed the defien from the namser.h file where it was
- once added for the windows build.
-
- I also fixed init_by_defaults() function to not leak memory in case if
- error.
-
-* Jun 9 2008 (Yang Tse)
-
-- Make libcares.pc generated file for pkg-config include information relative
- to the libraries needed for the static linking of c-ares.
-
-* May 30 2008 (Yang Tse)
-
-- Brad House fixed a missing header file inclusion in adig sample program.
-
-Version 1.5.2 (May 29, 2008)
-
-* May 13 2008 (Daniel Stenberg)
-
-- Introducing millisecond resolution support for the timeout option. See
- ares_init_options()'s ARES_OPT_TIMEOUTMS.
-
-* May 9 2008 (Yang Tse)
-
-- Use monotonic time source if available, for private function ares__tvnow()
-
-* May 7 2008 (Daniel Stenberg)
-
-- Sebastian made c-ares able to return all PTR-records when doing reverse
- lookups. It is not common practice to have multiple PTR-Records for a single
- IP, but its perfectly legal and some sites have those.
-
-- Doug Goldstein provided a configure patch: updates autoconf 2.13 usage to
- autoconf 2.57 usage (which is the version you have specified as the minimum
- version). It's a minor change but it does clean up some warnings with newer
- autoconf (specifically 2.62).
-
-* May 5 2008 (Yang Tse)
-
-- Improved parsing of resolver configuration files.
-
-* April 4 2008 (Daniel Stenberg)
-
-- Eino Tuominen improved the code when a file is used to seed the randomizer.
-
-- Alexey Simak made adig support NAPTR records
-
-- Alexey Simak fixed the VC dsp file by adding the missing source file
- ares_expand_string.c
-
-* December 11 2007 (Gisle Vanem)
-
-- Added another sample application; acountry.c which converts an
- IPv4-address(es) and/or host-name(s) to country-name and country-code.
- This uses the service of the DNSBL at countries.nerd.dk.
-
-* December 3 2007 (Daniel Stenberg)
-
-- Brad Spencer fixed the configure script to assume that there's no
- /dev/urandom when built cross-compiled as then the script cannot check for
- it.
-
-- Erik Kline cleaned up ares_gethostbyaddr.c:next_lookup() somewhat
-
-Version 1.5.1 (Nov 21, 2007)
-
-* November 21 2007 (Daniel Stenberg)
-
-- Robin Cornelius pointed out that ares_llist.h was missing in the release
- archive for 1.5.0
-
-Version 1.5.0 (Nov 21, 2007)
-
-* October 2 2007 (Daniel Stenberg)
-
-- ares_strerror() segfaulted if the input error number was out of the currently
- supported range.
-
-- Yang Tse: Avoid a segfault when generating a DNS "Transaction ID" in
- internal function init_id_key() under low memory conditions.
-
-* September 28 2007 (Daniel Stenberg)
-
-- Bumped version to 1.5.0 for next release and soname bumped to 2 due to ABI
- and API changes in the progress callback (and possibly more coming up from
- Steinar)
-
-* September 28 2007 (Steinar H. Gunderson)
-
-- Don't skip a server if it's the only one. (Bugfix from the Google tree.)
-
-- Made the query callbacks receive the number of timeouts that happened during
- the execution of a query, and updated documentation accordingly. (Patch from
- the Google tree.)
-
-- Support a few more socket options: ARES_OPT_SOCK_SNDBUF and
- ARES_OPT_SOCK_RCVBUF
-
-- Always register for TCP events even if there are no outstanding queries, as
- the other side could always close the connection, which is a valid event
- which should be responded to.
-
-* September 22 2007 (Daniel Stenberg)
-
-- Steinar H. Gunderson fixed: Correctly clear sockets from the fd_set on in
- several functions (write_tcp_data, read_tcp_data, read_udp_packets) so that
- if it fails and the socket is closed the following code doesn't try to use
- the file descriptor.
-
-- Steinar H. Gunderson modified c-ares to now also do to DNS retries even when
- TCP is used since there are several edge cases where it still makes sense.
-
-- Brad House provided a fix for ares_save_options():
-
- Apparently I overlooked something with the ares_save_options() where it
- would try to do a malloc(0) when no options of that type needed to be saved.
- On most platforms, this was fine because malloc(0) doesn't actually return
- NULL, but on AIX it does, so ares_save_options would return ARES_ENOMEM.
-
-* July 14 2007 (Daniel Stenberg)
-
-- Vlad Dinulescu fixed two outstanding valgrind reports:
-
- 1. In ares_query.c , in find_query_by_id we compare q->qid (which is a short
- int variable) with qid, which is declared as an int variable. Moreover,
- DNS_HEADER_SET_QID is used to set the value of qid, but DNS_HEADER_SET_QID
- sets only the first two bytes of qid. I think that qid should be declared as
- "unsigned short" in this function.
-
- 2. The same problem occurs in ares_process.c, process_answer() . query->qid
- (an unsigned short integer variable) is compared with id, which is an
- integer variable. Moreover, id is initialized from DNS_HEADER_QID which sets
- only the first two bytes of id. I think that the id variable should be
- declared as "unsigned short" in this function.
-
- Even after declaring these variables as "unsigned short", the valgrind
- errors are still there. Which brings us to the third problem.
-
- 3. The third problem is that Valgrind assumes that query->qid is not
- initialised correctly. And it does that because query->qid is set from
- DNS_HEADER_QID(qbuf); Valgrind says that qbuf has unitialised bytes. And
- qbuf has uninitialised bytes because of channel->next_id . And next_id is
- set by ares_init.c:ares__generate_new_id() . I found that putting short r=0
- in this function (instead of short r) makes all Valgrind warnings go away.
- I have studied ares__rc4() too, and this is the offending line:
-
- buffer_ptr[counter] ^= state[xorIndex]; (ares_query.c:62)
-
- This is what triggers Valgrind.. buffer_ptr is unitialised in this function,
- and by applying ^= on it, it remains unitialised.
-
-Version 1.4.0 (June 8, 2007)
-
-* June 4 2007 (Daniel Stenberg)
-
-- James Bursa reported a major memory problem when resolving multi-IP names
- and I found and fixed the problem. It was added by Ashish Sharma's patch
- two days ago.
-
- When I then tried to verify multiple entries in /etc/hosts after my fix, I
- got another segfault and decided this code was not ripe for inclusion and I
- reverted the patch.
-
-* June 2 2007
-
-- Brad Spencer found and fixed three flaws in the code, found with the new
- gcc 4.2.0 warning: -Waddress
-
-- Brad House fixed VS2005 compiler warnings due to time_t being 64bit.
- He also made recent Microsoft compilers use _strdup() instead of strdup().
-
-- Brad House's man pages for ares_save_options() and ares_destroy_options()
- were added.
-
-- Ashish Sharma provided a patch for supporting multiple entries in the
- /etc/hosts file. Patch edited for coding style and functionality by me
- (Daniel).
-
-* May 30 2007
-
-- Shmulik Regev brought cryptographically secure transaction IDs:
-
- The c-ares library implementation uses a DNS "Transaction ID" field that is
- seeded with a pseudo random number (based on gettimeofday) which is
- incremented (++) between consecutive calls and is therefore rather
- predictable. In general, predictability of DNS Transaction ID is a well
- known security problem (e.g.
- http://bak.spc.org/dms/archive/dns_id_attack.txt) and makes a c-ares based
- implementation vulnerable to DNS poisoning. Credit goes to Amit Klein
- (Trusteer) for identifying this problem.
-
- The patch I wrote changes the implementation to use a more secure way of
- generating unique IDs. It starts by obtaining a key with reasonable entropy
- which is used with an RC4 stream to generate the cryptographically secure
- transaction IDs.
-
- Note that the key generation code (in ares_init:randomize_key) has two
- versions, the Windows specific one uses a cryptographically safe function
- provided (but undocumented :) by the operating system (described at
- http://blogs.msdn.com/michael_howard/archive/2005/01/14/353379.aspx). The
- default implementation is a bit naive and uses the standard 'rand'
- function. Surely a better way to generate random keys exists for other
- platforms.
-
- The patch can be tested by using the adig utility and using the '-s' option.
-
-- Brad House added ares_save_options() and ares_destroy_options() that can be
- used to keep options for later re-usal when ares_init_options() is used.
-
- Problem: Calling ares_init() for each lookup can be unnecessarily resource
- intensive. On windows, it must LoadLibrary() or search the registry
- on each call to ares_init(). On unix, it must read and parse
- multiple files to obtain the necessary configuration information. In
- a single-threaded environment, it would make sense to only
- ares_init() once, but in a heavily multi-threaded environment, it is
- undesirable to ares_init() and ares_destroy() for each thread created
- and track that.
-
- Solution: Create ares_save_options() and ares_destroy_options() functions to
- retrieve and free options obtained from an initialized channel. The
- options populated can be used to pass back into ares_init_options(),
- it should populate all needed fields and not retrieve any information
- from the system. Probably wise to destroy the cache every minute or
- so to prevent the data from becoming stale.
-
-- Daniel S added ares_process_fd() to allow applications to ask for processing
- on specific sockets and thus avoiding select() and associated
- functions/macros. This function will be used by upcoming libcurl releases
- for this very reason. It also made me export the ares_socket_t type in the
- public ares.h header file, since ares_process_fd() uses that type for two of
- the arguments.
-
-* May 25 2007
-
-- Ravi Pratap fixed a flaw in the init_by_resolv_conf() function for windows
- that could cause it to return a bad return code.
-
-* April 16 2007
-
-- Yang Tse: Provide ares_getopt() command-line parser function as a source
- code helper function, not belonging to the actual c-ares library.
-
-* February 19 2007
-
-- Vlad Dinulescu added ares_parse_ns_reply().
-
-* February 13 2007
-
-- Yang Tse: Fix failure to get the search sequence of /etc/hosts and
- DNS from /etc/nsswitch.conf, /etc/host.conf or /etc/svc.conf when
- /etc/resolv.conf did not exist or was unable to read it.
-
-* November 22 2006
-
-- Install ares_dns.h too
-
-- Michael Wallner fixed this problem: When I set domains in the options
- struct, and there are domain/search entries in /etc/resolv.conf, the domains
- of the options struct will be overridden.
-
-* November 6 2006
-
-- Yang Tse removed a couple of potential zero size memory allocations.
-
-- Andreas Rieke fixed the line endings in the areslib.dsp file that I (Daniel)
- broke in the 1.3.2 release. We should switch to a system where that file is
- auto-generated. We could rip some code for that from curl...
-
-Version 1.3.2 (November 3, 2006)
-
-* October 12 2006
-
-- Prevent ares_getsock() to overflow if more than 16 sockets are used.
-
-* September 11 2006
-
-- Guilherme Balena Versiani: I noted a strange BUG in Win32 port
- (ares_init.c/get_iphlpapi_dns_info() function): when I disable the network
- by hand or disconnect the network cable in Windows 2000 or Windows XP, my
- application gets 127.0.0.1 as the only name server. The problem comes from
- 'GetNetworkParams' function, that returns the empty string "" as the only
- name server in that case. Moreover, the Windows implementation of
- inet_addr() returns INADDR_LOOPBACK instead of INADDR_NONE.
-
-* August 29 2006
-
-- Brad Spencer did
-
- o made ares_version.h use extern "C" for c++ compilers
- o fixed compiler warnings in ares_getnameinfo.c
- o fixed a buffer position init for TCP reads
-
-* August 3 2006
-
-- Ravi Pratap fixed ares_getsock() to actually return the proper bitmap and
- not always zero!
-
-Version 1.3.1 (June 24, 2006)
-
-* July 23, 2006
-
-- Gisle Vanem added getopt() to the ahost program. Currently accepts
- only [-t {a|aaaa}] to specify address family in ares_gethostbyname().
-
-* June 19, 2006
-
-- (wahern) Removed "big endian" DNS section and RR data integer parser
- macros from ares_dns.h, which break c-ares on my Sparc64. Bit-wise
- operations in C operate on logical values. And in any event the octets are
- already in big-endian (aka network) byte order so they're being reversed
- (thus the source of the breakage).
-
-* June 18, 2006
-
-- William Ahern handles EAGAIN/EWOULDBLOCK errors in most of the I/O calls
- from area_process.c.
-
- TODO: Handle one last EAGAIN for a UDP socket send(2) in
- ares__send_query().
-
-* May 10, 2006
-
-- Bram Matthys brought my attention to a libtool peculiarity where detecting
- things such as C++ compiler actually is a bad thing and since we don't need
- that detection I added a work-around, much inspired by a previous patch by
- Paolo Bonzini. This also shortens the configure script quite a lot.
-
-* May 3, 2006
-
-- Nick Mathewson added the ARES_OPT_SOCK_STATE_CB option that when set makes
- c-ares call a callback on socket state changes. A better way than the
- ares_getsock() to get full control over the socket state.
-
-* January 9, 2006
-
-- Alexander Lazic improved the getservbyport_r() configure check.
-
-* January 6, 2006
-
-- Alexander Lazic pointed out that the buildconf should use the ACLOCAL_FLAGS
- variable for easier controlling what it does and how it runs.
-
-* January 5, 2006
-
-- James Bursa fixed c-ares to find the hosts file on RISC OS, and made it
- build with newer gcc versions that no longer defines "riscos".
-
-* December 22
-
-- Daniel Stenberg added ares_getsock() that extracts the set of sockets to
- wait for action on. Similar to ares_fds() but not restricted to using
- select() for the waiting.
-
-* November 25
-
-- Yang Tse fixed some send() / recv() compiler warnings
-
-* September 18
-
-- Added constants that will be used by ares_getaddrinfo
-
-- Made ares_getnameinfo use the reentrant getservbyport (getservbyport_r) if it
- is available to ensure it works properly in a threaded environment.
-
-* September 10
-
-- configure fix for detecting a member in the sockaddr_in6 struct which failed
- on ipv6-enabled HP-UX 11.00
-
-Version 1.3.0 (August 29, 2005)
-
-* August 21
-
-- Alfredo Tupone provided a fix for the Windows code in get_iphlpapi_dns_info()
- when getting the DNS server etc.
-
-* June 19
-
-- Added some checks for the addrinfo structure.
-
-* June 2
-
-- William Ahern:
-
- Make UDP sockets non-blocking. I've confirmed that at least on Linux 2.4 a
- read event can come back from poll() on a valid SOCK_DGRAM socket but
- recv(2) will still block. This patch doesn't ignore EAGAIN in
- read_udp_packets(), though maybe it should. (This patch was edited by Daniel
- Stenberg and a new configure test was added (imported from curl's configure)
- to properly detect what non-blocking socket approach to use.)
-
- I'm not quite sure how this was happening, but I've been seeing PTR queries
- which seem to return empty responses. At least, they were empty when calling
- ares_expand_name() on the record. Here's a patch which guarantees to
- NUL-terminate the expanded name. The old behavior failed to NUL-terminate if
- len was 0, and this was causing strlen() to run past the end of the buffer
- after calling ares_expand_name() and getting ARES_SUCCESS as the return
- value. If q is not greater than *s then it's equal and *s is always
- allocated with at least one byte.
-
-* May 16
-
-- Added ares_getnameinfo which mimics the getnameinfo API (another feature
- that could use testing).
-
-* May 14
-
-- Added an inet_ntop function from BIND for systems that do not have it.
-
-* April 9
-
-- Made sortlist support IPv6 (this can probably use some testing).
-
-- Made sortlist support CIDR matching for IPv4.
-
-* April 8
-
-- Added preliminary IPv6 support to ares_gethostbyname. Currently, sortlist
- does not work with IPv6. Also provided an implementation of bitncmp from
- BIND for systems that do not supply this function. This will be used to add
- IPv6 support to sortlist.
-
-- Made ares_gethostbyaddr support IPv6 by specifying AF_INET6 as the family.
- The function can lookup IPv6 addresses both from files (/etc/hosts) and
- DNS lookups.
-
-* April 7
-
-- Tupone Alfredo fixed includes of arpa/nameser_compat.h to build fine on Mac
- OS X.
-
-* April 5
-
-- Dominick Meglio: Provided implementations of inet_net_pton and inet_pton
- from BIND for systems that do not include these functions.
-
-* March 11, 2005
-
-- Dominick Meglio added ares_parse_aaaa_reply.c and did various
- adjustments. The first little steps towards IPv6 support!
-
-* November 7
-
-- Fixed the VC project and makefile to use ares_cancel and ares_version
-
-* October 24
-
-- The released ares_version.h from 1.2.1 says 1.2.0 due to a maketgz flaw.
- This is now fixed.
-
-Version 1.2.1 (October 20, 2004)
-
-* September 29
-
-- Henrik Stoerner fix: got a report that Tru64 Unix (the unix from Digital
- when they made Alpha's) uses /etc/svc.conf for the purpose fixed below for
- other OSes. He made c-ares check for and understand it if present.
-
-- Now c-ares will use local host name lookup _before_ DNS resolving by default
- if nothing else is told.
-
-* September 26
-
-- Henrik Stoerner: found out that c-ares does not look at the /etc/host.conf
- file to determine the sequence in which to search /etc/hosts and DNS. So on
- systems where this order is defined by /etc/host.conf instead of a "lookup"
- entry in /etc/resolv.conf, c-ares will always default to looking in DNS
- first, and /etc/hosts second.
-
- c-ares now looks at
-
- 1) resolv.conf (for the "lookup" line);
- 2) nsswitch.fon (for the "hosts:" line);
- 3) host.conf (for the "order" line).
-
- First match wins.
-
-- Dominick Meglio patched: C-ares on Windows assumed that the HOSTS file is
- located in a static location. It assumed
- C:\Windows\System32\Drivers\Etc. This is a poor assumption to make. In fact,
- the location of the HOSTS file can be changed via a registry setting.
-
- There is a key called DatabasePath which specifies the path to the HOSTS
- file:
- http://www.microsoft.com/technet/itsolutions/network/deploy/depovg/tcpip2k.mspx
-
- The patch will make c-ares correctly consult the registry for the location
- of this file.
-
-* August 29
-
-- Gisle Vanem fixed the MSVC build files.
-
-* August 20
-
-- Gisle Vanem made c-ares build and work with his Watt-32 TCP/IP stack.
-
-* August 13
-
-- Harshal Pradhan made a minor syntax change in ares_init.c to make it build
- fine with MSVC 7.1
-
-* July 24
-
-- Made the lib get built static only if --enable-debug is used.
-
-- Gisle Vanem fixed:
-
- Basically in loops like handle_errors(), 'query->next' was assigned a local
- variable and then query was referenced after the memory was freed by
- next_server(). I've changed that so next_server() and end_query() returns
- the next query. So callers should use this ret-value.
-
- The next problem was that 'server->tcp_buffer_pos' had a random value at
- entry to 1st recv() (luckily causing Winsock to return ENOBUFS).
-
- I've also added a ares_writev() for Windows to streamline the code a bit
- more.
-
-* July 20
-- Fixed a few variable return types for some system calls. Made configure
- check for ssize_t to make it possible to use that when receiving the send()
- error code. This is necessary to prevent compiler warnings on some systems.
-
-- Made configure create config.h, and all source files now include setup.h that
- might include the proper config.h (or a handicrafted alternative).
-
-- Switched to 'ares_socket_t' type for sockets in ares, since Windows don't
- use 'int' for that.
-
-- automake-ified and libool-ified c-ares. Now it builds libcares as a shared
- lib on most platforms if wanted. (This bloated the size of the release
- archive with another 200K!)
-
-- Makefile.am now uses Makefile.inc for the c sources, h headers and man
- pages, to make it easier for other makefiles to use the exact same set of
- files.
-
-- Adjusted 'maketgz' to use the new automake magic when building distribution
- archives.
-
-- Anyone desires HTML and/or PDF versions of the man pages in the release
- archives?
-
-* July 3
-- Günter Knauf made c-ares build and run on Novell Netware.
-
-* July 1
-- Gisle Vanem provided Makefile.dj to build with djgpp, added a few more djgpp
- fixes and made ares not use 'errno' to provide further info on Windows.
-
-* June 30
-- Gisle Vanem made it build with djgpp and run fine with the Watt-32 stack.
-
-* June 10
-- Gisle Vanem's init patch for Windows:
-
- The init_by_resolv_conf() function fetches the DNS-server(s)
- from a series of registry branches.
-
- This can be wrong in the case where DHCP has assigned nameservers, but the
- user has overridden these servers with other prefered settings. Then it's
- wrong to use the DHCPNAMESERVER setting in registry.
-
- In the case of no global DHCP-assigned or fixed servers, but DNS server(s)
- per adapter, one has to query the adapter branches. But how can c-ares know
- which adapter is valid for use? AFAICS it can't. There could be one adapter
- that is down (e.g. a VPN adapter).
-
- So it's better to leave this to the IP Helper API (iphlapi) available in
- Win-98/2000 and later. My patch falls-back to the old way if not available.
-
-* June 8
-- James Bursa fixed an init issue for RISC OS.
-
-* May 11
-- Nico Stappenbelt reported that when processing domain and search lines in
- the resolv.conf file, the first entry encountered is processed and used as
- the search list. According to the manual pages for both Linux, Solaris and
- Tru64, the last entry of either a domain or a search field is used.
-
- This is now adjusted in the code
-
-Version 1.2.0 (April 13, 2004)
-
-* April 2, 2004
-- Updated various man pages to look nicer when converted to HTML on the web
- site.
-
-* April 1, 2004
-- Dirk Manske provided a new function that is now named ares_cancel(). It is
- used to cancel/cleanup a resolve/request made using ares functions on the
- given ares channel. It does not destroy/kill the ares channel itself.
-
-- Dominick Meglio cleaned up the formatting in several man pages.
-
-* March 30, 2004
-- Dominick Meglio's new ares_expand_string. A helper function when decoding
- incoming DNS packages.
-
-- Daniel Stenberg modified the Makefile.in to use a for loop for the man page
- installation to improve overview and make it easier to add man pages.
-
-Version 1.1.0 (March 11, 2004)
-
-* March 9, 2004
-- Gisle Vanem improved build on Windows.
-
-* February 25, 2004
-- Dan Fandrich found a flaw in the Feb 22 fix.
-
-- Added better configure --enable-debug logic (taken from the curl configure
- script). Added acinclude.m4 to the tarball.
-
-* February 23, 2004
-- Removed ares_free_errmem(), the function, the file and the man page. It was
- not used and it did nothing.
-
-- Fixed a lot of code that wasn't "64bit clean" and thus caused a lot of
- compiler warnings on picky compilers.
-
-* February 22, 2004
-- Dominick Meglio made ares init support multiple name servers in the
- NameServer key on Windows.
-
-* February 16, 2004
-- Modified ares_private.h to include libcurl's memory debug header if
- CURLDEBUG is set. This makes all the ares-functions supervised properly by
- the curl test suite. This also forced me to add inclusion of the
- ares_private.h header in a few more files that are using some kind of
- memory-related resources.
-
-- Made the makefile only build ahost and adig if 'make demos' is used.
-
-* February 10, 2004
-- Dirk Manske made ares_version.h installed with 'make install'
-
-* February 4, 2004
-- ares_free_errmem() is subject for removal, it is simply present for future
- purposes, and since we removed the extra parameter in strerror() it won't
- be used by c-ares!
-- configure --enable-debug now enables picky compiler options if gcc is used
-- fixed several compiler warnings --enable-debug showed and Joerg Mueller-Tolk
- reported
-
-Version 1.0.0 (February 3, 2004)
-
-* February 3, 2004
-- now we produce the libcares.a library instead of the previous libares.a
- since we are no longer compatible
-
-* February 2, 2004
-
-- ares_strerror() has one argument less. This is the first official
- modification of the existing provided ares API.
-
-* January 29, 2004
-
-- Dirk Manske fixed how the socket is set non-blocking.
-
-* January 4, 2004
-
-- Dominick Meglio made the private gettimeofday() become ares_gettimeofday()
- instead in order to not pollute the name space and risk colliding with
- other libraries' versions of this function.
-
-* October 24, 2003. Daniel Stenberg
-
- Added ares_version().
-
-Version 1.0-pre1 (8 October 2003)
-
-- James Bursa made it run on RISC OS
-
-- Dominick Meglio made it run fine on NT4
-
-- Duncan Wilcox made it work fine on Mac OS X
-
-- Daniel Stenberg adjusted the windows port
-
-- liren at vivisimo.com made the initial windows port
-
-* Imported the sources from ares 1.1.1
+++ /dev/null
-include_directories(${CMAKE_CURRENT_SOURCE_DIR})
-include_directories(${node_platform}-${cares_arch})
-add_definitions(-DHAVE_CONFIG_H=1)
-
-include(CheckLibraryExists)
-check_library_exists(socket socket "" HAVE_SOCKET_LIB)
-check_library_exists(nsl gethostbyname "" HAVE_NSL_LIB)
-
-file(GLOB lib_sources *.c)
-add_library(cares ${lib_sources})
-
-if(${HAVE_SOCKET_LIB})
- set(cares_libs ${cares_libs} socket)
-endif()
-
-if(${HAVE_NSL_LIB})
- set(cares_libs ${cares_libs} nsl)
-endif()
-
-if(cares_libs)
- target_link_libraries(cares ${cares_libs})
-endif()
+++ /dev/null
-Major changes since:
-* see the CHANGES file
-
-Major changes in release 1.1.1:
-* ares should now compile as C++ code (no longer uses reserved word
- "class").
-* Added SRV support to adig test program.
-* Fixed a few error handling bugs in query processing.
-
-Major changes in release 1.1.0:
-* Added ares_free_string() function so that memory can be freed in the
- same layer as it is allocated, a desirable feature in some
- environments.
-* A few of the ares_dns.h macros are fixed to use the proper bitwise
- operator.
-* Fixed a couple of fenceposts fixed in ares_expand_name()'s
- bounds-checking.
-* In process_timeouts(), extract query->next before calling
- next_server() and possibly freeing the query structure.
-* Casted arguments to ctype macros casted to unsigned char, since not
- all char values are valid inputs to those macros according to ANSI.
+++ /dev/null
-c-ares
-======
-
-This is c-ares, an asynchronous resolver library. It is intended for
-applications which need to perform DNS queries without blocking, or need to
-perform multiple DNS queries in parallel. The primary examples of such
-applications are servers which communicate with multiple clients and programs
-with graphical user interfaces.
-
-The full source code is available in the 'c-ares' release archives, and in a
-git repository: http://github.com/bagder/c-ares
-
-If you find bugs, correct flaws, have questions or have comments in general in
-regard to c-ares (or by all means the original ares too), get in touch with us
-on the c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares
-
-c-ares is of course distributed under the same MIT-style license as the
-original ares.
-
-You'll find all c-ares details and news here:
-
- http://c-ares.haxx.se/
-
-
-NOTES FOR C-ARES HACKERS
-
-The following notes apply to c-ares version 1.7.0 and later.
-
-* The distributed ares_build.h file is only intended to be used on systems
- which can not run the also distributed configure script.
-
-* The distributed ares_build.h file is generated as a copy of ares_build.h.dist
- when the c-ares source code distribution archive file is originally created.
-
-* If you check out from git on a non-configure platform, you must run the
- appropriate buildconf* script to set up ares_build.h and other local files
- before being able of compiling the library.
-
-* On systems capable of running the configure script, the configure process
- will overwrite the distributed ares_build.h file with one that is suitable
- and specific to the library being configured and built, this new file is
- generated from the ares_build.h.in template file.
-
-* If you intend to distribute an already compiled c-ares library you _MUST_
- also distribute along with it the generated ares_build.h which has been
- used to compile it. Otherwise the library will be of no use for the users of
- the library that you have built. It is _your_ responsibility to provide this
- file. No one at the c-ares project can know how you have built the library.
-
-* File ares_build.h includes platform and configuration dependent info,
- and must not be modified by anyone. Configure script generates it for you.
-
-* We cannot assume anything else but very basic compiler features being
- present. While c-ares requires an ANSI C compiler to build, some of the
- earlier ANSI compilers clearly can't deal with some preprocessor operators.
-
-* Newlines must remain unix-style for older compilers' sake.
-
-* Comments must be written in the old-style /* unnested C-fashion */
-
+++ /dev/null
-c-ares
-======
-
-This package is based on ares 1.1.1 (written by Greg Hudson). I decided to
-fork and release a separate project since the ares author didn't want the
-improvements that were vital for our use of it.
-
-This package is dubbed 'c-ares' since I (Daniel Stenberg) wanted this for use
-within the curl project (hence the letter C) and it makes a nice pun. Also,
-c-ares is not API compatible with ares: a new name makes that more obvious to
-the public.
-
-The original libares was distributed at athena-dist.mit.edu:pub/ATHENA/ares.
+++ /dev/null
-
-
- ___ __ _ _ __ ___ ___
- / __| ___ / _` | '__/ _ \/ __|
- | (_ |___| (_| | | | __/\__ \
- \___| \__,_|_| \___||___/
-
-
- How to build c-ares using MSVC or Visual Studio
- =================================================
-
-
-
- How to build using MSVC from the command line
- ---------------------------------------------
-
- Open a command prompt window and ensure that the environment is properly
- set up in order to use MSVC or Visual Studio compiler tools.
-
- Change to c-ares source folder where Makefile.msvc file is located and run:
-
- > nmake -f Makefile.msvc
-
- This will build all c-ares libraries as well as three sample programs.
-
- Once the above command has finished a new folder named MSVCXX will exist
- below the folder where makefile.msvc is found. The name of the folder
- depends on the MSVC compiler version being used to build c-ares.
-
- Below the MSVCXX folder there will exist four folders named 'cares',
- 'ahost', 'acountry', and 'adig'. The 'cares' folder is the one that
- holds the c-ares libraries you have just generated, the other three
- hold sample programs that use the libraries.
-
- The above command builds four versions of the c-ares library, dynamic
- and static versions and each one in release and debug flavours. Each
- of these is found in folders named dll-release, dll-debug, lib-release,
- and lib-debug, which hang from the 'cares' folder mentioned above. Each
- sample program also has folders with the same names to reflect which
- library version it is using.
-
-
- How to build using Visual Studio 6 IDE
- --------------------------------------
-
- A VC++ 6.0 reference workspace (vc6aws.dsw) is available within the 'vc'
- folder to allow proper building of the library and sample programs.
-
- 1) Open the vc6aws.dsw workspace with MSVC6's IDE.
- 2) Select 'Build' from top menu.
- 3) Select 'Batch Build' from dropdown menu.
- 4) Make sure that the sixteen project configurations are 'checked'.
- 5) Click on the 'Build' button.
- 6) Once the sixteen project configurations are built you are done.
-
- Dynamic and static c-ares libraries are built in debug and release flavours,
- and can be located each one in its own subdirectory, dll-debug, dll-release,
- lib-debug and lib-release, all of them below the 'vc\cares' subdirectory.
-
- In the same way four executable versions of each sample program are built,
- each using its respective library. The resulting sample executables are
- located in its own subdirectory, dll-debug, dll-release, lib-debug and
- lib-release, below the 'vc\acountry', 'vc\adig' and 'vc\ahost'folders.
-
- These reference VC++ 6.0 configurations are generated using the dynamic CRT.
-
-
- How to build using Visual Studio 2003 or newer IDE
- --------------------------------------------------
-
- First you have to convert the VC++ 6.0 reference workspace and project files
- to the Visual Studio IDE version you are using, following next steps:
-
- 1) Open vc\vc6aws.dsw with VS20XX.
- 2) Allow VS20XX to update all projects and workspaces.
- 3) Save ALL and close VS20XX.
- 4) Open vc\vc6aws.sln with VS20XX.
- 5) Select batch build, check 'all' projects and click 'build' button.
-
- Same comments relative to generated files and folders as done above for
- Visual Studio 6 IDE apply here.
-
-
- Relationship between c-ares library file names and versions
- -----------------------------------------------------------
-
- c-ares static release library version files:
-
- libcares.lib -> static release library
-
- c-ares static debug library version files:
-
- libcaresd.lib -> static debug library
-
- c-ares dynamic release library version files:
-
- cares.dll -> dynamic release library
- cares.lib -> import library for the dynamic release library
- cares.exp -> export file for the dynamic release library
-
- c-ares dynamic debug library version files:
-
- caresd.dll -> dynamic debug library
- caresd.lib -> import library for the dynamic debug library
- caresd.exp -> export file for the dynamic debug library
- caresd.pdb -> debug symbol file for the dynamic debug library
-
-
- How to use c-ares static libraries
- ----------------------------------
-
- When using the c-ares static library in your program, you will have to
- define preprocessor symbol CARES_STATICLIB while building your program,
- otherwise you will get errors at linkage stage.
-
-
-Have Fun!
-
+++ /dev/null
-Library: c-ares, DNS resolver
-
-Version: 1.7.3 (11 June, 2010)
-
-Authors: Greg Hudson, Daniel Stenberg
-
-License: MIT
-
-Notes:
-
-Just use waf instead of the autoconf based configure script. Delete most of
-the documentation and other files distributed with it. To upgrade, run
-./configure on linux, macintosh, solaris (and other supported platforms) and
-copy
-- ares_config.h
-- ares_setup.h
-- ares_build.h
-into the appropriate directory.
-
-
-
+++ /dev/null
-c-ares version 1.7.4
-
-Changed:
-
- o local-bind: Support binding to local interface/IPs, see
- ares_set_local_ip4, ares_set_local_ip6, ares_set_local_dev
-
-Fixed:
-
- o memory leak in ares_getnameinfo
- o add missing break that caused get_ares_servers to fail
- o ares_parse_a_reply: fix CNAME response parsing
- o init_by_options: don't copy an empty sortlist
- o Replaced uint32_t with unsigned int to fix broken builds
- on a couple of platforms
- o Fix lookup with HOSTALIASES set
- o adig: fix NAPTR parsing
- o compiler warning cleanups
-
-Thanks go to these friendly people for their efforts and contributions:
-
- Andrew C. Morrow, Ben Greear, Ben Noordhuis, Daniel Stenberg,
- Guenter Knauf, Mike Crowe, Patrik Thunstrom, Yang Tse
-
-Have fun!
+++ /dev/null
-TODO
-====
-
-ares_reinit()
-
-- To allow an app to force a re-read of /etc/resolv.conf etc, pretty much
- like the res_init() resolver function offers
-
-ares_gethostbyname
-
-- When built to support IPv6, it needs to also support PF_UNSPEC or similar,
- so that an application can ask for any protocol and then c-ares would return
- all known resolves and not just explicitly IPv4 _or_ IPv6 resolves.
-
-ares_process
-
-- Upon next ABI breakage ares_process() should be changed to return 'int'
- and return ARES_ENOTINITIALIZED if ares_library_init() has not been called.
-
-ares_process_fd
-
-- Upon next ABI breakage ares_process_fd() should be changed to return
- 'int' and return ARES_ENOTINITIALIZED if library has not been initialized.
+++ /dev/null
-
-/* Copyright 1998, 2009 by the Massachusetts Institute of Technology.
- * Copyright (C) 2007-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#ifndef ARES__H
-#define ARES__H
-
-#include "ares_version.h" /* c-ares version defines */
-
-/*
- * Define WIN32 when build target is Win32 API
- */
-
-#if (defined(_WIN32) || defined(__WIN32__)) && \
- !defined(WIN32) && !defined(__SYMBIAN32__)
-# define WIN32
-#endif
-
-/*************************** libuv patch ***************/
-
-/*
- * We want to avoid autoconf altogether since there are a finite number of
- * operating systems and simply build c-ares. Therefore we do not want the
- * configurations provided by ares_build.h since we are always statically
- * linking c-ares into libuv. Having a system dependent ares_build.h forces
- * all users of ares.h to include the correct ares_build.h. We do not care
- * about the linking checks provided by ares_rules.h. This would complicate
- * the libuv build process.
- */
-
-
-#if defined(WIN32)
-/* Configure process defines this to 1 when it finds out that system */
-/* header file ws2tcpip.h must be included by the external interface. */
-/* #undef CARES_PULL_WS2TCPIP_H */
-# include <winsock2.h>
-# include <ws2tcpip.h>
-# include <windows.h>
-
-#else /* Not Windows */
-
-# include <sys/types.h>
-# include <sys/socket.h>
-#endif
-
-#if 0
-/* The size of `long', as computed by sizeof. */
-#define CARES_SIZEOF_LONG 4
-#endif
-
-/* Integral data type used for ares_socklen_t. */
-#define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
-
-#if 0
-/* The size of `ares_socklen_t', as computed by sizeof. */
-#define CARES_SIZEOF_ARES_SOCKLEN_T 4
-#endif
-
-/* Data type definition of ares_socklen_t. */
-typedef int ares_socklen_t;
-
-#if 0 /* libuv disabled */
-#include "ares_rules.h" /* c-ares rules enforcement */
-#endif
-
-/*********************** end libuv patch ***************/
-
-#include <sys/types.h>
-
-/* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
- libc5-based Linux systems. Only include it on system that are known to
- require it! */
-#if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
- defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY)
-#include <sys/select.h>
-#endif
-#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
-#include <sys/bsdskt.h>
-#endif
-
-#if defined(WATT32)
-# include <netinet/in.h>
-# include <sys/socket.h>
-# include <tcp.h>
-#elif defined(WIN32)
-# include <winsock2.h>
-# include <ws2tcpip.h>
-# include <windows.h>
-#else
-# include <sys/socket.h>
-# include <netinet/in.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
-** c-ares external API function linkage decorations.
-*/
-
-#if !defined(CARES_STATICLIB) && \
- (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
- /* __declspec function decoration for Win32 and Symbian DLL's */
-# if defined(CARES_BUILDING_LIBRARY)
-# define CARES_EXTERN __declspec(dllexport)
-# else
-# define CARES_EXTERN __declspec(dllimport)
-# endif
-#else
- /* visibility function decoration for other cases */
-# if !defined(CARES_SYMBOL_HIDING) || \
- defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__)
-# define CARES_EXTERN
-# else
-# define CARES_EXTERN CARES_SYMBOL_SCOPE_EXTERN
-# endif
-#endif
-
-
-#define ARES_SUCCESS 0
-
-/* Server error codes (ARES_ENODATA indicates no relevant answer) */
-#define ARES_ENODATA 1
-#define ARES_EFORMERR 2
-#define ARES_ESERVFAIL 3
-#define ARES_ENOTFOUND 4
-#define ARES_ENOTIMP 5
-#define ARES_EREFUSED 6
-
-/* Locally generated error codes */
-#define ARES_EBADQUERY 7
-#define ARES_EBADNAME 8
-#define ARES_EBADFAMILY 9
-#define ARES_EBADRESP 10
-#define ARES_ECONNREFUSED 11
-#define ARES_ETIMEOUT 12
-#define ARES_EOF 13
-#define ARES_EFILE 14
-#define ARES_ENOMEM 15
-#define ARES_EDESTRUCTION 16
-#define ARES_EBADSTR 17
-
-/* ares_getnameinfo error codes */
-#define ARES_EBADFLAGS 18
-
-/* ares_getaddrinfo error codes */
-#define ARES_ENONAME 19
-#define ARES_EBADHINTS 20
-
-/* Uninitialized library error code */
-#define ARES_ENOTINITIALIZED 21 /* introduced in 1.7.0 */
-
-/* ares_library_init error codes */
-#define ARES_ELOADIPHLPAPI 22 /* introduced in 1.7.0 */
-#define ARES_EADDRGETNETWORKPARAMS 23 /* introduced in 1.7.0 */
-
-/* More error codes */
-#define ARES_ECANCELLED 24 /* introduced in 1.7.0 */
-
-/* Flag values */
-#define ARES_FLAG_USEVC (1 << 0)
-#define ARES_FLAG_PRIMARY (1 << 1)
-#define ARES_FLAG_IGNTC (1 << 2)
-#define ARES_FLAG_NORECURSE (1 << 3)
-#define ARES_FLAG_STAYOPEN (1 << 4)
-#define ARES_FLAG_NOSEARCH (1 << 5)
-#define ARES_FLAG_NOALIASES (1 << 6)
-#define ARES_FLAG_NOCHECKRESP (1 << 7)
-
-/* Option mask values */
-#define ARES_OPT_FLAGS (1 << 0)
-#define ARES_OPT_TIMEOUT (1 << 1)
-#define ARES_OPT_TRIES (1 << 2)
-#define ARES_OPT_NDOTS (1 << 3)
-#define ARES_OPT_UDP_PORT (1 << 4)
-#define ARES_OPT_TCP_PORT (1 << 5)
-#define ARES_OPT_SERVERS (1 << 6)
-#define ARES_OPT_DOMAINS (1 << 7)
-#define ARES_OPT_LOOKUPS (1 << 8)
-#define ARES_OPT_SOCK_STATE_CB (1 << 9)
-#define ARES_OPT_SORTLIST (1 << 10)
-#define ARES_OPT_SOCK_SNDBUF (1 << 11)
-#define ARES_OPT_SOCK_RCVBUF (1 << 12)
-#define ARES_OPT_TIMEOUTMS (1 << 13)
-#define ARES_OPT_ROTATE (1 << 14)
-
-/* Nameinfo flag values */
-#define ARES_NI_NOFQDN (1 << 0)
-#define ARES_NI_NUMERICHOST (1 << 1)
-#define ARES_NI_NAMEREQD (1 << 2)
-#define ARES_NI_NUMERICSERV (1 << 3)
-#define ARES_NI_DGRAM (1 << 4)
-#define ARES_NI_TCP 0
-#define ARES_NI_UDP ARES_NI_DGRAM
-#define ARES_NI_SCTP (1 << 5)
-#define ARES_NI_DCCP (1 << 6)
-#define ARES_NI_NUMERICSCOPE (1 << 7)
-#define ARES_NI_LOOKUPHOST (1 << 8)
-#define ARES_NI_LOOKUPSERVICE (1 << 9)
-/* Reserved for future use */
-#define ARES_NI_IDN (1 << 10)
-#define ARES_NI_IDN_ALLOW_UNASSIGNED (1 << 11)
-#define ARES_NI_IDN_USE_STD3_ASCII_RULES (1 << 12)
-
-/* Addrinfo flag values */
-#define ARES_AI_CANONNAME (1 << 0)
-#define ARES_AI_NUMERICHOST (1 << 1)
-#define ARES_AI_PASSIVE (1 << 2)
-#define ARES_AI_NUMERICSERV (1 << 3)
-#define ARES_AI_V4MAPPED (1 << 4)
-#define ARES_AI_ALL (1 << 5)
-#define ARES_AI_ADDRCONFIG (1 << 6)
-/* Reserved for future use */
-#define ARES_AI_IDN (1 << 10)
-#define ARES_AI_IDN_ALLOW_UNASSIGNED (1 << 11)
-#define ARES_AI_IDN_USE_STD3_ASCII_RULES (1 << 12)
-#define ARES_AI_CANONIDN (1 << 13)
-
-#define ARES_AI_MASK (ARES_AI_CANONNAME|ARES_AI_NUMERICHOST|ARES_AI_PASSIVE| \
- ARES_AI_NUMERICSERV|ARES_AI_V4MAPPED|ARES_AI_ALL| \
- ARES_AI_ADDRCONFIG)
-#define ARES_GETSOCK_MAXNUM 16 /* ares_getsock() can return info about this
- many sockets */
-#define ARES_GETSOCK_READABLE(bits,num) (bits & (1<< (num)))
-#define ARES_GETSOCK_WRITABLE(bits,num) (bits & (1 << ((num) + \
- ARES_GETSOCK_MAXNUM)))
-
-/* c-ares library initialization flag values */
-#define ARES_LIB_INIT_NONE (0)
-#define ARES_LIB_INIT_WIN32 (1 << 0)
-#define ARES_LIB_INIT_ALL (ARES_LIB_INIT_WIN32)
-
-
-/*
- * Typedef our socket type
- */
-
-#ifndef ares_socket_typedef
-#ifdef WIN32
-typedef SOCKET ares_socket_t;
-#define ARES_SOCKET_BAD INVALID_SOCKET
-#else
-typedef int ares_socket_t;
-#define ARES_SOCKET_BAD -1
-#endif
-#define ares_socket_typedef
-#endif /* ares_socket_typedef */
-
-typedef void (*ares_sock_state_cb)(void *data,
- ares_socket_t socket_fd,
- int readable,
- int writable);
-
-struct apattern;
-
-/* NOTE about the ares_options struct to users and developers.
-
- This struct will remain looking like this. It will not be extended nor
- shrunk in future releases, but all new options will be set by ares_set_*()
- options instead of with the ares_init_options() function.
-
- Eventually (in a galaxy far far away), all options will be settable by
- ares_set_*() options and the ares_init_options() function will become
- deprecated.
-
- When new options are added to c-ares, they are not added to this
- struct. And they are not "saved" with the ares_save_options() function but
- instead we encourage the use of the ares_dup() function. Needless to say,
- if you add config options to c-ares you need to make sure ares_dup()
- duplicates this new option.
-
- */
-struct ares_options {
- int flags;
- int timeout; /* in seconds or milliseconds, depending on options */
- int tries;
- int ndots;
- unsigned short udp_port;
- unsigned short tcp_port;
- int socket_send_buffer_size;
- int socket_receive_buffer_size;
- struct in_addr *servers;
- int nservers;
- char **domains;
- int ndomains;
- char *lookups;
- ares_sock_state_cb sock_state_cb;
- void *sock_state_cb_data;
- struct apattern *sortlist;
- int nsort;
-};
-
-struct hostent;
-struct timeval;
-struct sockaddr;
-struct ares_channeldata;
-
-typedef struct ares_channeldata *ares_channel;
-
-typedef void (*ares_callback)(void *arg,
- int status,
- int timeouts,
- unsigned char *abuf,
- int alen);
-
-typedef void (*ares_host_callback)(void *arg,
- int status,
- int timeouts,
- struct hostent *hostent);
-
-typedef void (*ares_nameinfo_callback)(void *arg,
- int status,
- int timeouts,
- char *node,
- char *service);
-
-typedef int (*ares_sock_create_callback)(ares_socket_t socket_fd,
- int type,
- void *data);
-
-CARES_EXTERN int ares_library_init(int flags);
-
-CARES_EXTERN void ares_library_cleanup(void);
-
-CARES_EXTERN const char *ares_version(int *version);
-
-CARES_EXTERN int ares_init(ares_channel *channelptr);
-
-CARES_EXTERN int ares_init_options(ares_channel *channelptr,
- struct ares_options *options,
- int optmask);
-
-CARES_EXTERN int ares_save_options(ares_channel channel,
- struct ares_options *options,
- int *optmask);
-
-CARES_EXTERN void ares_destroy_options(struct ares_options *options);
-
-CARES_EXTERN int ares_dup(ares_channel *dest,
- ares_channel src);
-
-CARES_EXTERN void ares_destroy(ares_channel channel);
-
-CARES_EXTERN void ares_cancel(ares_channel channel);
-
-/* These next 3 configure local binding for the out-going socket
- * connection. Use these to specify source IP and/or network device
- * on multi-homed systems.
- */
-CARES_EXTERN void ares_set_local_ip4(ares_channel channel, unsigned int local_ip);
-
-/* local_ip6 should be 16 bytes in length */
-CARES_EXTERN void ares_set_local_ip6(ares_channel channel,
- const unsigned char* local_ip6);
-
-/* local_dev_name should be null terminated. */
-CARES_EXTERN void ares_set_local_dev(ares_channel channel,
- const char* local_dev_name);
-
-CARES_EXTERN void ares_set_socket_callback(ares_channel channel,
- ares_sock_create_callback callback,
- void *user_data);
-
-CARES_EXTERN void ares_send(ares_channel channel,
- const unsigned char *qbuf,
- int qlen,
- ares_callback callback,
- void *arg);
-
-CARES_EXTERN void ares_query(ares_channel channel,
- const char *name,
- int dnsclass,
- int type,
- ares_callback callback,
- void *arg);
-
-CARES_EXTERN void ares_search(ares_channel channel,
- const char *name,
- int dnsclass,
- int type,
- ares_callback callback,
- void *arg);
-
-CARES_EXTERN void ares_gethostbyname(ares_channel channel,
- const char *name,
- int family,
- ares_host_callback callback,
- void *arg);
-
-CARES_EXTERN int ares_gethostbyname_file(ares_channel channel,
- const char *name,
- int family,
- struct hostent **host);
-
-CARES_EXTERN void ares_gethostbyaddr(ares_channel channel,
- const void *addr,
- int addrlen,
- int family,
- ares_host_callback callback,
- void *arg);
-
-CARES_EXTERN void ares_getnameinfo(ares_channel channel,
- const struct sockaddr *sa,
- ares_socklen_t salen,
- int flags,
- ares_nameinfo_callback callback,
- void *arg);
-
-CARES_EXTERN int ares_fds(ares_channel channel,
- fd_set *read_fds,
- fd_set *write_fds);
-
-CARES_EXTERN int ares_getsock(ares_channel channel,
- ares_socket_t *socks,
- int numsocks);
-
-CARES_EXTERN struct timeval *ares_timeout(ares_channel channel,
- struct timeval *maxtv,
- struct timeval *tv);
-
-CARES_EXTERN void ares_process(ares_channel channel,
- fd_set *read_fds,
- fd_set *write_fds);
-
-CARES_EXTERN void ares_process_fd(ares_channel channel,
- ares_socket_t read_fd,
- ares_socket_t write_fd);
-
-CARES_EXTERN int ares_mkquery(const char *name,
- int dnsclass,
- int type,
- unsigned short id,
- int rd,
- unsigned char **buf,
- int *buflen);
-
-CARES_EXTERN int ares_expand_name(const unsigned char *encoded,
- const unsigned char *abuf,
- int alen,
- char **s,
- long *enclen);
-
-CARES_EXTERN int ares_expand_string(const unsigned char *encoded,
- const unsigned char *abuf,
- int alen,
- unsigned char **s,
- long *enclen);
-
-/*
- * NOTE: before c-ares 1.7.0 we would most often use the system in6_addr
- * struct below when ares itself was built, but many apps would use this
- * private version since the header checked a HAVE_* define for it. Starting
- * with 1.7.0 we always declare and use our own to stop relying on the
- * system's one.
- */
-struct ares_in6_addr {
- union {
- unsigned char _S6_u8[16];
- } _S6_un;
-};
-
-struct ares_addrttl {
- struct in_addr ipaddr;
- int ttl;
-};
-
-struct ares_addr6ttl {
- struct ares_in6_addr ip6addr;
- int ttl;
-};
-
-struct ares_srv_reply {
- struct ares_srv_reply *next;
- char *host;
- unsigned short priority;
- unsigned short weight;
- unsigned short port;
-};
-
-struct ares_mx_reply {
- struct ares_mx_reply *next;
- char *host;
- unsigned short priority;
-};
-
-struct ares_txt_reply {
- struct ares_txt_reply *next;
- unsigned char *txt;
- size_t length; /* length excludes null termination */
-};
-
-/*
-** Parse the buffer, starting at *abuf and of length alen bytes, previously
-** obtained from an ares_search call. Put the results in *host, if nonnull.
-** Also, if addrttls is nonnull, put up to *naddrttls IPv4 addresses along with
-** their TTLs in that array, and set *naddrttls to the number of addresses
-** so written.
-*/
-
-CARES_EXTERN int ares_parse_a_reply(const unsigned char *abuf,
- int alen,
- struct hostent **host,
- struct ares_addrttl *addrttls,
- int *naddrttls);
-
-CARES_EXTERN int ares_parse_aaaa_reply(const unsigned char *abuf,
- int alen,
- struct hostent **host,
- struct ares_addr6ttl *addrttls,
- int *naddrttls);
-
-CARES_EXTERN int ares_parse_ptr_reply(const unsigned char *abuf,
- int alen,
- const void *addr,
- int addrlen,
- int family,
- struct hostent **host);
-
-CARES_EXTERN int ares_parse_ns_reply(const unsigned char *abuf,
- int alen,
- struct hostent **host);
-
-CARES_EXTERN int ares_parse_srv_reply(const unsigned char* abuf,
- int alen,
- struct ares_srv_reply** srv_out);
-
-CARES_EXTERN int ares_parse_mx_reply(const unsigned char* abuf,
- int alen,
- struct ares_mx_reply** mx_out);
-
-CARES_EXTERN int ares_parse_txt_reply(const unsigned char* abuf,
- int alen,
- struct ares_txt_reply** txt_out);
-
-CARES_EXTERN void ares_free_string(void *str);
-
-CARES_EXTERN void ares_free_hostent(struct hostent *host);
-
-CARES_EXTERN void ares_free_data(void *dataptr);
-
-CARES_EXTERN const char *ares_strerror(int code);
-
-/* TODO: Hold port here as well. */
-struct ares_addr_node {
- struct ares_addr_node *next;
- int family;
- union {
- struct in_addr addr4;
- struct ares_in6_addr addr6;
- } addr;
-};
-
-CARES_EXTERN int ares_set_servers(ares_channel channel,
- struct ares_addr_node *servers);
-
-/* Incomming string format: host[:port][,host[:port]]... */
-CARES_EXTERN int ares_set_servers_csv(ares_channel channel,
- const char* servers);
-
-CARES_EXTERN int ares_get_servers(ares_channel channel,
- struct ares_addr_node **servers);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ARES__H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#include "ares.h"
-#include "ares_private.h"
-
-void ares__close_sockets(ares_channel channel, struct server_state *server)
-{
- struct send_request *sendreq;
-
- /* Free all pending output buffers. */
- while (server->qhead)
- {
- /* Advance server->qhead; pull out query as we go. */
- sendreq = server->qhead;
- server->qhead = sendreq->next;
- if (sendreq->data_storage != NULL)
- free(sendreq->data_storage);
- free(sendreq);
- }
- server->qtail = NULL;
-
- /* Reset any existing input buffer. */
- if (server->tcp_buffer)
- free(server->tcp_buffer);
- server->tcp_buffer = NULL;
- server->tcp_lenbuf_pos = 0;
-
- /* Reset brokenness */
- server->is_broken = 0;
-
- /* Close the TCP and UDP sockets. */
- if (server->tcp_socket != ARES_SOCKET_BAD)
- {
- SOCK_STATE_CALLBACK(channel, server->tcp_socket, 0, 0);
- sclose(server->tcp_socket);
- server->tcp_socket = ARES_SOCKET_BAD;
- server->tcp_connection_generation = ++channel->tcp_connection_generation;
- }
- if (server->udp_socket != ARES_SOCKET_BAD)
- {
- SOCK_STATE_CALLBACK(channel, server->udp_socket, 0, 0);
- sclose(server->udp_socket);
- server->udp_socket = ARES_SOCKET_BAD;
- }
-}
+++ /dev/null
-
-/* Copyright 1998, 2010 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-
-#include "ares.h"
-#include "inet_net_pton.h"
-#include "ares_private.h"
-
-int ares__get_hostent(FILE *fp, int family, struct hostent **host)
-{
- char *line = NULL, *p, *q, **alias;
- char *txtaddr, *txthost, *txtalias;
- int status;
- size_t addrlen, linesize, naliases;
- struct ares_addr addr;
- struct hostent *hostent = NULL;
-
- *host = NULL; /* Assume failure */
-
- /* Validate family */
- switch (family) {
- case AF_INET:
- case AF_INET6:
- case AF_UNSPEC:
- break;
- default:
- return ARES_EBADFAMILY;
- }
-
- while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
- {
-
- /* Trim line comment. */
- p = line;
- while (*p && (*p != '#'))
- p++;
- *p = '\0';
-
- /* Trim trailing whitespace. */
- q = p - 1;
- while ((q >= line) && ISSPACE(*q))
- q--;
- *++q = '\0';
-
- /* Skip leading whitespace. */
- p = line;
- while (*p && ISSPACE(*p))
- p++;
- if (!*p)
- /* Ignore line if empty. */
- continue;
-
- /* Pointer to start of IPv4 or IPv6 address part. */
- txtaddr = p;
-
- /* Advance past address part. */
- while (*p && !ISSPACE(*p))
- p++;
- if (!*p)
- /* Ignore line if reached end of line. */
- continue;
-
- /* Null terminate address part. */
- *p = '\0';
-
- /* Advance to host name */
- p++;
- while (*p && ISSPACE(*p))
- p++;
- if (!*p)
- /* Ignore line if reached end of line. */
- continue;
-
- /* Pointer to start of host name. */
- txthost = p;
-
- /* Advance past host name. */
- while (*p && !ISSPACE(*p))
- p++;
-
- /* Pointer to start of first alias. */
- txtalias = NULL;
- if (*p)
- {
- q = p + 1;
- while (*q && ISSPACE(*q))
- q++;
- if (*q)
- txtalias = q;
- }
-
- /* Null terminate host name. */
- *p = '\0';
-
- /* find out number of aliases. */
- naliases = 0;
- if (txtalias)
- {
- p = txtalias;
- while (*p)
- {
- while (*p && !ISSPACE(*p))
- p++;
- while (*p && ISSPACE(*p))
- p++;
- naliases++;
- }
- }
-
- /* Convert address string to network address for the requested family. */
- addrlen = 0;
- addr.family = AF_UNSPEC;
- addr.addrV4.s_addr = INADDR_NONE;
- if ((family == AF_INET) || (family == AF_UNSPEC))
- {
- addr.addrV4.s_addr = inet_addr(txtaddr);
- if (addr.addrV4.s_addr != INADDR_NONE)
- {
- /* Actual network address family and length. */
- addr.family = AF_INET;
- addrlen = sizeof(addr.addrV4);
- }
- }
- if ((family == AF_INET6) || ((family == AF_UNSPEC) && (!addrlen)))
- {
- if (ares_inet_pton(AF_INET6, txtaddr, &addr.addrV6) > 0)
- {
- /* Actual network address family and length. */
- addr.family = AF_INET6;
- addrlen = sizeof(addr.addrV6);
- }
- }
- if (!addrlen)
- /* Ignore line if invalid address string for the requested family. */
- continue;
-
- /*
- ** Actual address family possible values are AF_INET and AF_INET6 only.
- */
-
- /* Allocate memory for the hostent structure. */
- hostent = malloc(sizeof(struct hostent));
- if (!hostent)
- break;
-
- /* Initialize fields for out of memory condition. */
- hostent->h_aliases = NULL;
- hostent->h_addr_list = NULL;
-
- /* Copy official host name. */
- hostent->h_name = strdup(txthost);
- if (!hostent->h_name)
- break;
-
- /* Copy network address. */
- hostent->h_addr_list = malloc(2 * sizeof(char *));
- if (!hostent->h_addr_list)
- break;
- hostent->h_addr_list[1] = NULL;
- hostent->h_addr_list[0] = malloc(addrlen);
- if (!hostent->h_addr_list[0])
- break;
- if (addr.family == AF_INET)
- memcpy(hostent->h_addr_list[0], &addr.addrV4, sizeof(addr.addrV4));
- else
- memcpy(hostent->h_addr_list[0], &addr.addrV6, sizeof(addr.addrV6));
-
- /* Copy aliases. */
- hostent->h_aliases = malloc((naliases + 1) * sizeof(char *));
- if (!hostent->h_aliases)
- break;
- alias = hostent->h_aliases;
- while (naliases)
- *(alias + naliases--) = NULL;
- *alias = NULL;
- while (txtalias)
- {
- p = txtalias;
- while (*p && !ISSPACE(*p))
- p++;
- q = p;
- while (*q && ISSPACE(*q))
- q++;
- *p = '\0';
- if ((*alias = strdup(txtalias)) == NULL)
- break;
- alias++;
- txtalias = *q ? q : NULL;
- }
- if (txtalias)
- /* Alias memory allocation failure. */
- break;
-
- /* Copy actual network address family and length. */
- hostent->h_addrtype = addr.family;
- hostent->h_length = (int)addrlen;
-
- /* Free line buffer. */
- free(line);
-
- /* Return hostent successfully */
- *host = hostent;
- return ARES_SUCCESS;
-
- }
-
- /* If allocated, free line buffer. */
- if (line)
- free(line);
-
- if (status == ARES_SUCCESS)
- {
- /* Memory allocation failure; clean up. */
- if (hostent)
- {
- if (hostent->h_name)
- free((char *) hostent->h_name);
- if (hostent->h_aliases)
- {
- for (alias = hostent->h_aliases; *alias; alias++)
- free(*alias);
- free(hostent->h_aliases);
- }
- if (hostent->h_addr_list)
- {
- if (hostent->h_addr_list[0])
- free(hostent->h_addr_list[0]);
- free(hostent->h_addr_list);
- }
- free(hostent);
- }
- return ARES_ENOMEM;
- }
-
- return status;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "ares.h"
-#include "ares_nowarn.h"
-#include "ares_private.h"
-
-/* This is an internal function. Its contract is to read a line from
- * a file into a dynamically allocated buffer, zeroing the trailing
- * newline if there is one. The calling routine may call
- * ares__read_line multiple times with the same buf and bufsize
- * pointers; *buf will be reallocated and *bufsize adjusted as
- * appropriate. The initial value of *buf should be NULL. After the
- * calling routine is done reading lines, it should free *buf.
- */
-int ares__read_line(FILE *fp, char **buf, size_t *bufsize)
-{
- char *newbuf;
- size_t offset = 0;
- size_t len;
-
- if (*buf == NULL)
- {
- *buf = malloc(128);
- if (!*buf)
- return ARES_ENOMEM;
- *bufsize = 128;
- }
-
- for (;;)
- {
- int bytestoread = aresx_uztosi(*bufsize - offset);
-
- if (!fgets(*buf + offset, bytestoread, fp))
- return (offset != 0) ? 0 : (ferror(fp)) ? ARES_EFILE : ARES_EOF;
- len = offset + strlen(*buf + offset);
- if ((*buf)[len - 1] == '\n')
- {
- (*buf)[len - 1] = 0;
- break;
- }
- offset = len;
- if(len < *bufsize - 1)
- continue;
-
- /* Allocate more space. */
- newbuf = realloc(*buf, *bufsize * 2);
- if (!newbuf)
- return ARES_ENOMEM;
- *buf = newbuf;
- *bufsize *= 2;
- }
- return ARES_SUCCESS;
-}
+++ /dev/null
-
-/* Copyright (C) 2008 by Daniel Stenberg et al
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include "ares.h"
-#include "ares_private.h"
-
-#if defined(WIN32) && !defined(MSDOS)
-
-struct timeval ares__tvnow(void)
-{
- /*
- ** GetTickCount() is available on _all_ Windows versions from W95 up
- ** to nowadays. Returns milliseconds elapsed since last system boot,
- ** increases monotonically and wraps once 49.7 days have elapsed.
- */
- struct timeval now;
- DWORD milliseconds = GetTickCount();
- now.tv_sec = milliseconds / 1000;
- now.tv_usec = (milliseconds % 1000) * 1000;
- return now;
-}
-
-#elif defined(HAVE_CLOCK_GETTIME_MONOTONIC)
-
-struct timeval ares__tvnow(void)
-{
- /*
- ** clock_gettime() is granted to be increased monotonically when the
- ** monotonic clock is queried. Time starting point is unspecified, it
- ** could be the system start-up time, the Epoch, or something else,
- ** in any case the time starting point does not change once that the
- ** system has started up.
- */
- struct timeval now;
- struct timespec tsnow;
- if(0 == clock_gettime(CLOCK_MONOTONIC, &tsnow)) {
- now.tv_sec = tsnow.tv_sec;
- now.tv_usec = tsnow.tv_nsec / 1000;
- }
- /*
- ** Even when the configure process has truly detected monotonic clock
- ** availability, it might happen that it is not actually available at
- ** run-time. When this occurs simply fallback to other time source.
- */
-#ifdef HAVE_GETTIMEOFDAY
- else
- (void)gettimeofday(&now, NULL);
-#else
- else {
- now.tv_sec = (long)time(NULL);
- now.tv_usec = 0;
- }
-#endif
- return now;
-}
-
-#elif defined(HAVE_GETTIMEOFDAY)
-
-struct timeval ares__tvnow(void)
-{
- /*
- ** gettimeofday() is not granted to be increased monotonically, due to
- ** clock drifting and external source time synchronization it can jump
- ** forward or backward in time.
- */
- struct timeval now;
- (void)gettimeofday(&now, NULL);
- return now;
-}
-
-#else
-
-struct timeval ares__tvnow(void)
-{
- /*
- ** time() returns the value of time in seconds since the Epoch.
- */
- struct timeval now;
- now.tv_sec = (long)time(NULL);
- now.tv_usec = 0;
- return now;
-}
-
-#endif
-
-#if 0 /* Not used */
-/*
- * Make sure that the first argument is the more recent time, as otherwise
- * we'll get a weird negative time-diff back...
- *
- * Returns: the time difference in number of milliseconds.
- */
-long ares__tvdiff(struct timeval newer, struct timeval older)
-{
- return (newer.tv_sec-older.tv_sec)*1000+
- (newer.tv_usec-older.tv_usec)/1000;
-}
-#endif
-
+++ /dev/null
-
-/* Copyright (C) 2004 by Daniel Stenberg et al
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include <assert.h>
-#include <stdlib.h>
-#include "ares.h"
-#include "ares_private.h"
-
-/*
- * ares_cancel() cancels all ongoing requests/resolves that might be going on
- * on the given channel. It does NOT kill the channel, use ares_destroy() for
- * that.
- */
-void ares_cancel(ares_channel channel)
-{
- struct query *query;
- struct list_node* list_head;
- struct list_node* list_node;
- int i;
-
- list_head = &(channel->all_queries);
- for (list_node = list_head->next; list_node != list_head; )
- {
- query = list_node->data;
- list_node = list_node->next; /* since we're deleting the query */
- query->callback(query->arg, ARES_ECANCELLED, 0, NULL, 0);
- ares__free_query(query);
- }
-#ifndef NDEBUG
- /* Freeing the query should remove it from all the lists in which it sits,
- * so all query lists should be empty now.
- */
- assert(ares__is_list_empty(&(channel->all_queries)));
- for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
- {
- assert(ares__is_list_empty(&(channel->queries_by_qid[i])));
- }
- for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
- {
- assert(ares__is_list_empty(&(channel->queries_by_timeout[i])));
- }
-#endif
- if (!(channel->flags & ARES_FLAG_STAYOPEN))
- {
- if (channel->servers)
- {
- for (i = 0; i < channel->nservers; i++)
- ares__close_sockets(channel, &channel->servers[i]);
- }
- }
-}
+++ /dev/null
-
-/* Copyright (C) 2009-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-
-#include "ares_setup.h"
-
-#include <stddef.h>
-
-#include "ares.h"
-#include "ares_data.h"
-#include "ares_private.h"
-
-
-/*
-** ares_free_data() - c-ares external API function.
-**
-** This function must be used by the application to free data memory that
-** has been internally allocated by some c-ares function and for which a
-** pointer has already been returned to the calling application. The list
-** of c-ares functions returning pointers that must be free'ed using this
-** function is:
-**
-** ares_get_servers()
-** ares_parse_srv_reply()
-** ares_parse_txt_reply()
-*/
-
-void ares_free_data(void *dataptr)
-{
- struct ares_data *ptr;
-
- if (!dataptr)
- return;
-
-#ifdef __INTEL_COMPILER
-# pragma warning(push)
-# pragma warning(disable:1684)
- /* 1684: conversion from pointer to same-sized integral type */
-#endif
-
- ptr = (void *)((char *)dataptr - offsetof(struct ares_data, data));
-
-#ifdef __INTEL_COMPILER
-# pragma warning(pop)
-#endif
-
- if (ptr->mark != ARES_DATATYPE_MARK)
- return;
-
- switch (ptr->type)
- {
- case ARES_DATATYPE_MX_REPLY:
-
- if (ptr->data.mx_reply.next)
- ares_free_data(ptr->data.mx_reply.next);
- if (ptr->data.mx_reply.host)
- free(ptr->data.mx_reply.host);
- break;
-
- case ARES_DATATYPE_SRV_REPLY:
-
- if (ptr->data.srv_reply.next)
- ares_free_data(ptr->data.srv_reply.next);
- if (ptr->data.srv_reply.host)
- free(ptr->data.srv_reply.host);
- break;
-
- case ARES_DATATYPE_TXT_REPLY:
-
- if (ptr->data.txt_reply.next)
- ares_free_data(ptr->data.txt_reply.next);
- if (ptr->data.txt_reply.txt)
- free(ptr->data.txt_reply.txt);
- break;
-
- case ARES_DATATYPE_ADDR_NODE:
-
- if (ptr->data.addr_node.next)
- ares_free_data(ptr->data.addr_node.next);
- break;
-
- default:
- return;
- }
-
- free(ptr);
-}
-
-
-/*
-** ares_malloc_data() - c-ares internal helper function.
-**
-** This function allocates memory for a c-ares private ares_data struct
-** for the specified ares_datatype, initializes c-ares private fields
-** and zero initializes those which later might be used from the public
-** API. It returns an interior pointer which can be passed by c-ares
-** functions to the calling application, and that must be free'ed using
-** c-ares external API function ares_free_data().
-*/
-
-void *ares_malloc_data(ares_datatype type)
-{
- struct ares_data *ptr;
-
- ptr = malloc(sizeof(struct ares_data));
- if (!ptr)
- return NULL;
-
- switch (type)
- {
- case ARES_DATATYPE_MX_REPLY:
- ptr->data.mx_reply.next = NULL;
- ptr->data.mx_reply.host = NULL;
- ptr->data.mx_reply.priority = 0;
- break;
-
- case ARES_DATATYPE_SRV_REPLY:
- ptr->data.srv_reply.next = NULL;
- ptr->data.srv_reply.host = NULL;
- ptr->data.srv_reply.priority = 0;
- ptr->data.srv_reply.weight = 0;
- ptr->data.srv_reply.port = 0;
- break;
-
- case ARES_DATATYPE_TXT_REPLY:
- ptr->data.txt_reply.next = NULL;
- ptr->data.txt_reply.txt = NULL;
- ptr->data.txt_reply.length = 0;
- break;
-
- case ARES_DATATYPE_ADDR_NODE:
- ptr->data.addr_node.next = NULL;
- ptr->data.addr_node.family = 0;
- memset(&ptr->data.addr_node.addrV6, 0,
- sizeof(ptr->data.addr_node.addrV6));
- break;
-
- default:
- free(ptr);
- return NULL;
- }
-
- ptr->mark = ARES_DATATYPE_MARK;
- ptr->type = type;
-
- return &ptr->data;
-}
-
-
-/*
-** ares_get_datatype() - c-ares internal helper function.
-**
-** This function returns the ares_datatype of the data stored in a
-** private ares_data struct when given the public API pointer.
-*/
-
-ares_datatype ares_get_datatype(void * dataptr)
-{
- struct ares_data *ptr;
-
-#ifdef __INTEL_COMPILER
-# pragma warning(push)
-# pragma warning(disable:1684)
- /* 1684: conversion from pointer to same-sized integral type */
-#endif
-
- ptr = (void *)((char *)dataptr - offsetof(struct ares_data, data));
-
-#ifdef __INTEL_COMPILER
-# pragma warning(pop)
-#endif
-
- if (ptr->mark == ARES_DATATYPE_MARK)
- return ptr->type;
-
- return ARES_DATATYPE_UNKNOWN;
-}
+++ /dev/null
-
-/* Copyright (C) 2009-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-typedef enum {
- ARES_DATATYPE_UNKNOWN = 1, /* unknown data type - introduced in 1.7.0 */
- ARES_DATATYPE_SRV_REPLY, /* struct ares_srv_reply - introduced in 1.7.0 */
- ARES_DATATYPE_TXT_REPLY, /* struct ares_txt_reply - introduced in 1.7.0 */
- ARES_DATATYPE_ADDR_NODE, /* struct ares_addr_node - introduced in 1.7.1 */
- ARES_DATATYPE_MX_REPLY, /* struct ares_mx_reply - introduced in 1.7.2 */
-#if 0
- ARES_DATATYPE_ADDR6TTL, /* struct ares_addrttl */
- ARES_DATATYPE_ADDRTTL, /* struct ares_addr6ttl */
- ARES_DATATYPE_HOSTENT, /* struct hostent */
- ARES_DATATYPE_OPTIONS, /* struct ares_options */
-#endif
- ARES_DATATYPE_LAST /* not used - introduced in 1.7.0 */
-} ares_datatype;
-
-#define ARES_DATATYPE_MARK 0xbead
-
-/*
- * ares_data struct definition is internal to c-ares and shall not
- * be exposed by the public API in order to allow future changes
- * and extensions to it without breaking ABI. This will be used
- * internally by c-ares as the container of multiple types of data
- * dynamically allocated for which a reference will be returned
- * to the calling application.
- *
- * c-ares API functions returning a pointer to c-ares internally
- * allocated data will actually be returning an interior pointer
- * into this ares_data struct.
- *
- * All this is 'invisible' to the calling application, the only
- * requirement is that this kind of data must be free'ed by the
- * calling application using ares_free_data() with the pointer
- * it has received from a previous c-ares function call.
- */
-
-struct ares_data {
- ares_datatype type; /* Actual data type identifier. */
- unsigned int mark; /* Private ares_data signature. */
- union {
- struct ares_txt_reply txt_reply;
- struct ares_srv_reply srv_reply;
- struct ares_addr_node addr_node;
- struct ares_mx_reply mx_reply;
- } data;
-};
-
-void *ares_malloc_data(ares_datatype type);
-
-ares_datatype ares_get_datatype(void * dataptr);
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2004-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include <assert.h>
-#include <stdlib.h>
-#include "ares.h"
-#include "ares_private.h"
-
-void ares_destroy_options(struct ares_options *options)
-{
- int i;
-
- if(options->servers)
- free(options->servers);
- for (i = 0; i < options->ndomains; i++)
- free(options->domains[i]);
- free(options->domains);
- if(options->sortlist)
- free(options->sortlist);
- free(options->lookups);
-}
-
-void ares_destroy(ares_channel channel)
-{
- int i;
- struct query *query;
- struct list_node* list_head;
- struct list_node* list_node;
-
- if (!channel)
- return;
-
- list_head = &(channel->all_queries);
- for (list_node = list_head->next; list_node != list_head; )
- {
- query = list_node->data;
- list_node = list_node->next; /* since we're deleting the query */
- query->callback(query->arg, ARES_EDESTRUCTION, 0, NULL, 0);
- ares__free_query(query);
- }
-#ifndef NDEBUG
- /* Freeing the query should remove it from all the lists in which it sits,
- * so all query lists should be empty now.
- */
- assert(ares__is_list_empty(&(channel->all_queries)));
- for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
- {
- assert(ares__is_list_empty(&(channel->queries_by_qid[i])));
- }
- for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
- {
- assert(ares__is_list_empty(&(channel->queries_by_timeout[i])));
- }
-#endif
-
- ares__destroy_servers_state(channel);
-
- if (channel->domains) {
- for (i = 0; i < channel->ndomains; i++)
- free(channel->domains[i]);
- free(channel->domains);
- }
-
- if(channel->sortlist)
- free(channel->sortlist);
-
- if (channel->lookups)
- free(channel->lookups);
-
- free(channel);
-}
-
-void ares__destroy_servers_state(ares_channel channel)
-{
- struct server_state *server;
- int i;
-
- if (channel->servers)
- {
- for (i = 0; i < channel->nservers; i++)
- {
- server = &channel->servers[i];
- ares__close_sockets(channel, server);
- assert(ares__is_list_empty(&server->queries_to_server));
- }
- free(channel->servers);
- channel->servers = NULL;
- }
- channel->nservers = -1;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#ifndef ARES__DNS_H
-#define ARES__DNS_H
-
-#define DNS__16BIT(p) (((p)[0] << 8) | (p)[1])
-#define DNS__32BIT(p) (((p)[0] << 24) | ((p)[1] << 16) | \
- ((p)[2] << 8) | (p)[3])
-
-#define DNS__SET16BIT(p, v) (((p)[0] = (unsigned char)(((v) >> 8) & 0xff)), \
- ((p)[1] = (unsigned char)((v) & 0xff)))
-#define DNS__SET32BIT(p, v) (((p)[0] = (unsigned char)(((v) >> 24) & 0xff)), \
- ((p)[1] = (unsigned char)(((v) >> 16) & 0xff)), \
- ((p)[2] = (unsigned char)(((v) >> 8) & 0xff)), \
- ((p)[3] = (unsigned char)((v) & 0xff)))
-
-#if 0
-/* we cannot use this approach on systems where we can't access 16/32 bit
- data on un-aligned addresses */
-#define DNS__16BIT(p) ntohs(*(unsigned short*)(p))
-#define DNS__32BIT(p) ntohl(*(unsigned long*)(p))
-#define DNS__SET16BIT(p, v) *(unsigned short*)(p) = htons(v)
-#define DNS__SET32BIT(p, v) *(unsigned long*)(p) = htonl(v)
-#endif
-
-/* Macros for parsing a DNS header */
-#define DNS_HEADER_QID(h) DNS__16BIT(h)
-#define DNS_HEADER_QR(h) (((h)[2] >> 7) & 0x1)
-#define DNS_HEADER_OPCODE(h) (((h)[2] >> 3) & 0xf)
-#define DNS_HEADER_AA(h) (((h)[2] >> 2) & 0x1)
-#define DNS_HEADER_TC(h) (((h)[2] >> 1) & 0x1)
-#define DNS_HEADER_RD(h) ((h)[2] & 0x1)
-#define DNS_HEADER_RA(h) (((h)[3] >> 7) & 0x1)
-#define DNS_HEADER_Z(h) (((h)[3] >> 4) & 0x7)
-#define DNS_HEADER_RCODE(h) ((h)[3] & 0xf)
-#define DNS_HEADER_QDCOUNT(h) DNS__16BIT((h) + 4)
-#define DNS_HEADER_ANCOUNT(h) DNS__16BIT((h) + 6)
-#define DNS_HEADER_NSCOUNT(h) DNS__16BIT((h) + 8)
-#define DNS_HEADER_ARCOUNT(h) DNS__16BIT((h) + 10)
-
-/* Macros for constructing a DNS header */
-#define DNS_HEADER_SET_QID(h, v) DNS__SET16BIT(h, v)
-#define DNS_HEADER_SET_QR(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 7))
-#define DNS_HEADER_SET_OPCODE(h, v) ((h)[2] |= (unsigned char)(((v) & 0xf) << 3))
-#define DNS_HEADER_SET_AA(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 2))
-#define DNS_HEADER_SET_TC(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 1))
-#define DNS_HEADER_SET_RD(h, v) ((h)[2] |= (unsigned char)((v) & 0x1))
-#define DNS_HEADER_SET_RA(h, v) ((h)[3] |= (unsigned char)(((v) & 0x1) << 7))
-#define DNS_HEADER_SET_Z(h, v) ((h)[3] |= (unsigned char)(((v) & 0x7) << 4))
-#define DNS_HEADER_SET_RCODE(h, v) ((h)[3] |= (unsigned char)((v) & 0xf))
-#define DNS_HEADER_SET_QDCOUNT(h, v) DNS__SET16BIT((h) + 4, v)
-#define DNS_HEADER_SET_ANCOUNT(h, v) DNS__SET16BIT((h) + 6, v)
-#define DNS_HEADER_SET_NSCOUNT(h, v) DNS__SET16BIT((h) + 8, v)
-#define DNS_HEADER_SET_ARCOUNT(h, v) DNS__SET16BIT((h) + 10, v)
-
-/* Macros for parsing the fixed part of a DNS question */
-#define DNS_QUESTION_TYPE(q) DNS__16BIT(q)
-#define DNS_QUESTION_CLASS(q) DNS__16BIT((q) + 2)
-
-/* Macros for constructing the fixed part of a DNS question */
-#define DNS_QUESTION_SET_TYPE(q, v) DNS__SET16BIT(q, v)
-#define DNS_QUESTION_SET_CLASS(q, v) DNS__SET16BIT((q) + 2, v)
-
-/* Macros for parsing the fixed part of a DNS resource record */
-#define DNS_RR_TYPE(r) DNS__16BIT(r)
-#define DNS_RR_CLASS(r) DNS__16BIT((r) + 2)
-#define DNS_RR_TTL(r) DNS__32BIT((r) + 4)
-#define DNS_RR_LEN(r) DNS__16BIT((r) + 8)
-
-/* Macros for constructing the fixed part of a DNS resource record */
-#define DNS_RR_SET_TYPE(r) DNS__SET16BIT(r, v)
-#define DNS_RR_SET_CLASS(r) DNS__SET16BIT((r) + 2, v)
-#define DNS_RR_SET_TTL(r) DNS__SET32BIT((r) + 4, v)
-#define DNS_RR_SET_LEN(r) DNS__SET16BIT((r) + 8, v)
-
-#endif /* ARES__DNS_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include "ares.h"
-#include "ares_private.h" /* for the memdebug */
-
-static int name_length(const unsigned char *encoded, const unsigned char *abuf,
- int alen);
-
-/* Expand an RFC1035-encoded domain name given by encoded. The
- * containing message is given by abuf and alen. The result given by
- * *s, which is set to a NUL-terminated allocated buffer. *enclen is
- * set to the length of the encoded name (not the length of the
- * expanded name; the goal is to tell the caller how many bytes to
- * move forward to get past the encoded name).
- *
- * In the simple case, an encoded name is a series of labels, each
- * composed of a one-byte length (limited to values between 0 and 63
- * inclusive) followed by the label contents. The name is terminated
- * by a zero-length label.
- *
- * In the more complicated case, a label may be terminated by an
- * indirection pointer, specified by two bytes with the high bits of
- * the first byte (corresponding to INDIR_MASK) set to 11. With the
- * two high bits of the first byte stripped off, the indirection
- * pointer gives an offset from the beginning of the containing
- * message with more labels to decode. Indirection can happen an
- * arbitrary number of times, so we have to detect loops.
- *
- * Since the expanded name uses '.' as a label separator, we use
- * backslashes to escape periods or backslashes in the expanded name.
- */
-
-int ares_expand_name(const unsigned char *encoded, const unsigned char *abuf,
- int alen, char **s, long *enclen)
-{
- int len, indir = 0;
- char *q;
- const unsigned char *p;
- union {
- ssize_t sig;
- size_t uns;
- } nlen;
-
- nlen.sig = name_length(encoded, abuf, alen);
- if (nlen.sig < 0)
- return ARES_EBADNAME;
-
- *s = malloc(nlen.uns + 1);
- if (!*s)
- return ARES_ENOMEM;
- q = *s;
-
- if (nlen.uns == 0) {
- /* RFC2181 says this should be ".": the root of the DNS tree.
- * Since this function strips trailing dots though, it becomes ""
- */
- q[0] = '\0';
- *enclen = 1; /* the caller should move one byte to get past this */
- return ARES_SUCCESS;
- }
-
- /* No error-checking necessary; it was all done by name_length(). */
- p = encoded;
- while (*p)
- {
- if ((*p & INDIR_MASK) == INDIR_MASK)
- {
- if (!indir)
- {
- *enclen = p + 2 - encoded;
- indir = 1;
- }
- p = abuf + ((*p & ~INDIR_MASK) << 8 | *(p + 1));
- }
- else
- {
- len = *p;
- p++;
- while (len--)
- {
- if (*p == '.' || *p == '\\')
- *q++ = '\\';
- *q++ = *p;
- p++;
- }
- *q++ = '.';
- }
- }
- if (!indir)
- *enclen = p + 1 - encoded;
-
- /* Nuke the trailing period if we wrote one. */
- if (q > *s)
- *(q - 1) = 0;
- else
- *q = 0; /* zero terminate */
-
- return ARES_SUCCESS;
-}
-
-/* Return the length of the expansion of an encoded domain name, or
- * -1 if the encoding is invalid.
- */
-static int name_length(const unsigned char *encoded, const unsigned char *abuf,
- int alen)
-{
- int n = 0, offset, indir = 0;
-
- /* Allow the caller to pass us abuf + alen and have us check for it. */
- if (encoded == abuf + alen)
- return -1;
-
- while (*encoded)
- {
- if ((*encoded & INDIR_MASK) == INDIR_MASK)
- {
- /* Check the offset and go there. */
- if (encoded + 1 >= abuf + alen)
- return -1;
- offset = (*encoded & ~INDIR_MASK) << 8 | *(encoded + 1);
- if (offset >= alen)
- return -1;
- encoded = abuf + offset;
-
- /* If we've seen more indirects than the message length,
- * then there's a loop.
- */
- if (++indir > alen)
- return -1;
- }
- else
- {
- offset = *encoded;
- if (encoded + offset + 1 >= abuf + alen)
- return -1;
- encoded++;
- while (offset--)
- {
- n += (*encoded == '.' || *encoded == '\\') ? 2 : 1;
- encoded++;
- }
- n++;
- }
- }
-
- /* If there were any labels at all, then the number of dots is one
- * less than the number of labels, so subtract one.
- */
- return (n) ? n - 1 : n;
-}
-
-/* Like ares_expand_name but returns EBADRESP in case of invalid input. */
-int ares__expand_name_for_response(const unsigned char *encoded,
- const unsigned char *abuf, int alen,
- char **s, long *enclen)
-{
- int status = ares_expand_name(encoded, abuf, alen, s, enclen);
- if (status == ARES_EBADNAME)
- status = ARES_EBADRESP;
- return status;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-#include "ares.h"
-#include "ares_private.h" /* for the memdebug */
-
-/* Simply decodes a length-encoded character string. The first byte of the
- * input is the length of the string to be returned and the bytes thereafter
- * are the characters of the string. The returned result will be NULL
- * terminated.
- */
-int ares_expand_string(const unsigned char *encoded,
- const unsigned char *abuf,
- int alen,
- unsigned char **s,
- long *enclen)
-{
- unsigned char *q;
- union {
- ssize_t sig;
- size_t uns;
- } elen;
-
- if (encoded == abuf+alen)
- return ARES_EBADSTR;
-
- elen.uns = *encoded;
- if (encoded+elen.sig+1 > abuf+alen)
- return ARES_EBADSTR;
-
- encoded++;
-
- *s = malloc(elen.uns+1);
- if (*s == NULL)
- return ARES_ENOMEM;
- q = *s;
- strncpy((char *)q, (char *)encoded, elen.uns);
- q[elen.uns] = '\0';
-
- *s = q;
-
- *enclen = (long)(elen.sig+1);
-
- return ARES_SUCCESS;
-}
-
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-
-#include "ares.h"
-#include "ares_private.h"
-
-int ares_fds(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
-{
- struct server_state *server;
- ares_socket_t nfds;
- int i;
-
- /* Are there any active queries? */
- int active_queries = !ares__is_list_empty(&(channel->all_queries));
-
- nfds = 0;
- for (i = 0; i < channel->nservers; i++)
- {
- server = &channel->servers[i];
- /* We only need to register interest in UDP sockets if we have
- * outstanding queries.
- */
- if (active_queries && server->udp_socket != ARES_SOCKET_BAD)
- {
- FD_SET(server->udp_socket, read_fds);
- if (server->udp_socket >= nfds)
- nfds = server->udp_socket + 1;
- }
- /* We always register for TCP events, because we want to know
- * when the other side closes the connection, so we don't waste
- * time trying to use a broken connection.
- */
- if (server->tcp_socket != ARES_SOCKET_BAD)
- {
- FD_SET(server->tcp_socket, read_fds);
- if (server->qhead)
- FD_SET(server->tcp_socket, write_fds);
- if (server->tcp_socket >= nfds)
- nfds = server->tcp_socket + 1;
- }
- }
- return (int)nfds;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include <stdlib.h>
-
-#ifdef HAVE_NETDB_H
-#include <netdb.h>
-#endif
-
-#include "ares.h"
-#include "ares_private.h" /* for memdebug */
-
-void ares_free_hostent(struct hostent *host)
-{
- char **p;
-
- free((char *)(host->h_name));
- for (p = host->h_aliases; *p; p++)
- free(*p);
- free(host->h_aliases);
- free(host->h_addr_list[0]); /* no matter if there is one or many entries,
- there is only one malloc for all of them */
- free(host->h_addr_list);
- free(host);
-}
+++ /dev/null
-
-/* Copyright 2000 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include <stdlib.h>
-#include "ares.h"
-#include "ares_private.h"
-
-void ares_free_string(void *str)
-{
- free(str);
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "ares.h"
-#include "inet_net_pton.h"
-#include "ares_private.h"
-
-#ifdef WATT32
-#undef WIN32
-#endif
-
-struct addr_query {
- /* Arguments passed to ares_gethostbyaddr() */
- ares_channel channel;
- struct ares_addr addr;
- ares_host_callback callback;
- void *arg;
-
- const char *remaining_lookups;
- int timeouts;
-};
-
-static void next_lookup(struct addr_query *aquery);
-static void addr_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen);
-static void end_aquery(struct addr_query *aquery, int status,
- struct hostent *host);
-static int file_lookup(struct ares_addr *addr, struct hostent **host);
-static void ptr_rr_name(char *name, const struct ares_addr *addr);
-
-void ares_gethostbyaddr(ares_channel channel, const void *addr, int addrlen,
- int family, ares_host_callback callback, void *arg)
-{
- struct addr_query *aquery;
-
- if (family != AF_INET && family != AF_INET6)
- {
- callback(arg, ARES_ENOTIMP, 0, NULL);
- return;
- }
-
- if ((family == AF_INET && addrlen != sizeof(aquery->addr.addrV4)) ||
- (family == AF_INET6 && addrlen != sizeof(aquery->addr.addrV6)))
- {
- callback(arg, ARES_ENOTIMP, 0, NULL);
- return;
- }
-
- aquery = malloc(sizeof(struct addr_query));
- if (!aquery)
- {
- callback(arg, ARES_ENOMEM, 0, NULL);
- return;
- }
- aquery->channel = channel;
- if (family == AF_INET)
- memcpy(&aquery->addr.addrV4, addr, sizeof(aquery->addr.addrV4));
- else
- memcpy(&aquery->addr.addrV6, addr, sizeof(aquery->addr.addrV6));
- aquery->addr.family = family;
- aquery->callback = callback;
- aquery->arg = arg;
- aquery->remaining_lookups = channel->lookups;
- aquery->timeouts = 0;
-
- next_lookup(aquery);
-}
-
-static void next_lookup(struct addr_query *aquery)
-{
- const char *p;
- char name[128];
- int status;
- struct hostent *host;
-
- for (p = aquery->remaining_lookups; *p; p++)
- {
- switch (*p)
- {
- case 'b':
- ptr_rr_name(name, &aquery->addr);
- aquery->remaining_lookups = p + 1;
- ares_query(aquery->channel, name, C_IN, T_PTR, addr_callback,
- aquery);
- return;
- case 'f':
- status = file_lookup(&aquery->addr, &host);
-
- /* this status check below previously checked for !ARES_ENOTFOUND,
- but we should not assume that this single error code is the one
- that can occur, as that is in fact no longer the case */
- if (status == ARES_SUCCESS)
- {
- end_aquery(aquery, status, host);
- return;
- }
- break;
- }
- }
- end_aquery(aquery, ARES_ENOTFOUND, NULL);
-}
-
-static void addr_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen)
-{
- struct addr_query *aquery = (struct addr_query *) arg;
- struct hostent *host;
- size_t addrlen;
-
- aquery->timeouts += timeouts;
- if (status == ARES_SUCCESS)
- {
- if (aquery->addr.family == AF_INET)
- {
- addrlen = sizeof(aquery->addr.addrV4);
- status = ares_parse_ptr_reply(abuf, alen, &aquery->addr.addrV4,
- (int)addrlen, AF_INET, &host);
- }
- else
- {
- addrlen = sizeof(aquery->addr.addrV6);
- status = ares_parse_ptr_reply(abuf, alen, &aquery->addr.addrV6,
- (int)addrlen, AF_INET6, &host);
- }
- end_aquery(aquery, status, host);
- }
- else if (status == ARES_EDESTRUCTION)
- end_aquery(aquery, status, NULL);
- else
- next_lookup(aquery);
-}
-
-static void end_aquery(struct addr_query *aquery, int status,
- struct hostent *host)
-{
- aquery->callback(aquery->arg, status, aquery->timeouts, host);
- if (host)
- ares_free_hostent(host);
- free(aquery);
-}
-
-static int file_lookup(struct ares_addr *addr, struct hostent **host)
-{
- FILE *fp;
- int status;
- int error;
-
-#ifdef WIN32
- char PATH_HOSTS[MAX_PATH];
- if (IS_NT()) {
- char tmp[MAX_PATH];
- HKEY hkeyHosts;
-
- if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0, KEY_READ,
- &hkeyHosts) == ERROR_SUCCESS)
- {
- DWORD dwLength = MAX_PATH;
- RegQueryValueEx(hkeyHosts, DATABASEPATH, NULL, NULL, (LPBYTE)tmp,
- &dwLength);
- ExpandEnvironmentStrings(tmp, PATH_HOSTS, MAX_PATH);
- RegCloseKey(hkeyHosts);
- }
- }
- else
- GetWindowsDirectory(PATH_HOSTS, MAX_PATH);
-
- strcat(PATH_HOSTS, WIN_PATH_HOSTS);
-
-#elif defined(WATT32)
- extern const char *_w32_GetHostsFile (void);
- const char *PATH_HOSTS = _w32_GetHostsFile();
-
- if (!PATH_HOSTS)
- return ARES_ENOTFOUND;
-#endif
-
- fp = fopen(PATH_HOSTS, "r");
- if (!fp)
- {
- error = ERRNO;
- switch(error)
- {
- case ENOENT:
- case ESRCH:
- return ARES_ENOTFOUND;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n",
- PATH_HOSTS));
- *host = NULL;
- return ARES_EFILE;
- }
- }
- while ((status = ares__get_hostent(fp, addr->family, host)) == ARES_SUCCESS)
- {
- if (addr->family != (*host)->h_addrtype)
- {
- ares_free_hostent(*host);
- continue;
- }
- if (addr->family == AF_INET)
- {
- if (memcmp((*host)->h_addr, &addr->addrV4,
- sizeof(addr->addrV4)) == 0)
- break;
- }
- else if (addr->family == AF_INET6)
- {
- if (memcmp((*host)->h_addr, &addr->addrV6,
- sizeof(addr->addrV6)) == 0)
- break;
- }
- ares_free_hostent(*host);
- }
- fclose(fp);
- if (status == ARES_EOF)
- status = ARES_ENOTFOUND;
- if (status != ARES_SUCCESS)
- *host = NULL;
- return status;
-}
-
-static void ptr_rr_name(char *name, const struct ares_addr *addr)
-{
- if (addr->family == AF_INET)
- {
- unsigned long laddr = ntohl(addr->addrV4.s_addr);
- unsigned long a1 = (laddr >> 24UL) & 0xFFUL;
- unsigned long a2 = (laddr >> 16UL) & 0xFFUL;
- unsigned long a3 = (laddr >> 8UL) & 0xFFUL;
- unsigned long a4 = laddr & 0xFFUL;
- sprintf(name, "%lu.%lu.%lu.%lu.in-addr.arpa", a4, a3, a2, a1);
- }
- else
- {
- unsigned char *bytes = (unsigned char *)&addr->addrV6;
- /* There are too many arguments to do this in one line using
- * minimally C89-compliant compilers */
- sprintf(name,
- "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.",
- bytes[15]&0xf, bytes[15] >> 4, bytes[14]&0xf, bytes[14] >> 4,
- bytes[13]&0xf, bytes[13] >> 4, bytes[12]&0xf, bytes[12] >> 4,
- bytes[11]&0xf, bytes[11] >> 4, bytes[10]&0xf, bytes[10] >> 4,
- bytes[9]&0xf, bytes[9] >> 4, bytes[8]&0xf, bytes[8] >> 4);
- sprintf(name+strlen(name),
- "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.ip6.arpa",
- bytes[7]&0xf, bytes[7] >> 4, bytes[6]&0xf, bytes[6] >> 4,
- bytes[5]&0xf, bytes[5] >> 4, bytes[4]&0xf, bytes[4] >> 4,
- bytes[3]&0xf, bytes[3] >> 4, bytes[2]&0xf, bytes[2] >> 4,
- bytes[1]&0xf, bytes[1] >> 4, bytes[0]&0xf, bytes[0] >> 4);
- }
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-
-#include "ares.h"
-#include "inet_net_pton.h"
-#include "bitncmp.h"
-#include "ares_private.h"
-
-#ifdef WATT32
-#undef WIN32
-#endif
-
-struct host_query {
- /* Arguments passed to ares_gethostbyname() */
- ares_channel channel;
- char *name;
- ares_host_callback callback;
- void *arg;
- int sent_family; /* this family is what was is being used */
- int want_family; /* this family is what is asked for in the API */
- const char *remaining_lookups;
- int timeouts;
-};
-
-static void next_lookup(struct host_query *hquery, int status_code);
-static void host_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen);
-static void end_hquery(struct host_query *hquery, int status,
- struct hostent *host);
-static int fake_hostent(const char *name, int family,
- ares_host_callback callback, void *arg);
-static int file_lookup(const char *name, int family, struct hostent **host);
-static void sort_addresses(struct hostent *host,
- const struct apattern *sortlist, int nsort);
-static void sort6_addresses(struct hostent *host,
- const struct apattern *sortlist, int nsort);
-static int get_address_index(const struct in_addr *addr,
- const struct apattern *sortlist, int nsort);
-static int get6_address_index(const struct ares_in6_addr *addr,
- const struct apattern *sortlist, int nsort);
-
-void ares_gethostbyname(ares_channel channel, const char *name, int family,
- ares_host_callback callback, void *arg)
-{
- struct host_query *hquery;
-
- /* Right now we only know how to look up Internet addresses - and unspec
- means try both basically. */
- switch (family) {
- case AF_INET:
- case AF_INET6:
- case AF_UNSPEC:
- break;
- default:
- callback(arg, ARES_ENOTIMP, 0, NULL);
- return;
- }
-
- if (fake_hostent(name, family, callback, arg))
- return;
-
- /* Allocate and fill in the host query structure. */
- hquery = malloc(sizeof(struct host_query));
- if (!hquery)
- {
- callback(arg, ARES_ENOMEM, 0, NULL);
- return;
- }
- hquery->channel = channel;
- hquery->name = strdup(name);
- hquery->want_family = family;
- hquery->sent_family = -1; /* nothing is sent yet */
- if (!hquery->name) {
- free(hquery);
- callback(arg, ARES_ENOMEM, 0, NULL);
- return;
- }
- hquery->callback = callback;
- hquery->arg = arg;
- hquery->remaining_lookups = channel->lookups;
- hquery->timeouts = 0;
-
- /* Start performing lookups according to channel->lookups. */
- next_lookup(hquery, ARES_ECONNREFUSED /* initial error code */);
-}
-
-static void next_lookup(struct host_query *hquery, int status_code)
-{
- const char *p;
- struct hostent *host;
- int status = status_code;
-
- for (p = hquery->remaining_lookups; *p; p++)
- {
- switch (*p)
- {
- case 'b':
- /* DNS lookup */
- hquery->remaining_lookups = p + 1;
- if ((hquery->want_family == AF_INET6) ||
- (hquery->want_family == AF_UNSPEC)) {
- /* if inet6 or unspec, start out with AAAA */
- hquery->sent_family = AF_INET6;
- ares_search(hquery->channel, hquery->name, C_IN, T_AAAA,
- host_callback, hquery);
- }
- else {
- hquery->sent_family = AF_INET;
- ares_search(hquery->channel, hquery->name, C_IN, T_A,
- host_callback, hquery);
- }
- return;
-
- case 'f':
- /* Host file lookup */
- status = file_lookup(hquery->name, hquery->want_family, &host);
-
- /* this status check below previously checked for !ARES_ENOTFOUND,
- but we should not assume that this single error code is the one
- that can occur, as that is in fact no longer the case */
- if (status == ARES_SUCCESS)
- {
- end_hquery(hquery, status, host);
- return;
- }
- status = status_code; /* Use original status code */
- break;
- }
- }
- end_hquery(hquery, status, NULL);
-}
-
-static void host_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen)
-{
- struct host_query *hquery = (struct host_query *) arg;
- ares_channel channel = hquery->channel;
- struct hostent *host = NULL;
-
- hquery->timeouts += timeouts;
- if (status == ARES_SUCCESS)
- {
- if (hquery->sent_family == AF_INET)
- {
- status = ares_parse_a_reply(abuf, alen, &host, NULL, NULL);
- if (host && channel->nsort)
- sort_addresses(host, channel->sortlist, channel->nsort);
- }
- else if (hquery->sent_family == AF_INET6)
- {
- status = ares_parse_aaaa_reply(abuf, alen, &host, NULL, NULL);
- if (status == ARES_ENODATA || status == ARES_EBADRESP) {
- /* The query returned something but either there were no AAAA
- records (e.g. just CNAME) or the response was malformed. Try
- looking up A instead. We should possibly limit this
- attempt-next logic to AF_UNSPEC lookups only. */
- hquery->sent_family = AF_INET;
- ares_search(hquery->channel, hquery->name, C_IN, T_A,
- host_callback, hquery);
- return;
- }
- if (host && channel->nsort)
- sort6_addresses(host, channel->sortlist, channel->nsort);
- }
- end_hquery(hquery, status, host);
- }
- else if ((status == ARES_ENODATA || status == ARES_EBADRESP ||
- status == ARES_ETIMEOUT) && hquery->sent_family == AF_INET6)
- {
- /* The AAAA query yielded no useful result. Now look up an A instead.
- We should possibly limit this attempt-next logic to AF_UNSPEC lookups
- only. */
- hquery->sent_family = AF_INET;
- ares_search(hquery->channel, hquery->name, C_IN, T_A, host_callback,
- hquery);
- }
- else if (status == ARES_EDESTRUCTION)
- end_hquery(hquery, status, NULL);
- else
- next_lookup(hquery, status);
-}
-
-static void end_hquery(struct host_query *hquery, int status,
- struct hostent *host)
-{
- hquery->callback(hquery->arg, status, hquery->timeouts, host);
- if (host)
- ares_free_hostent(host);
- free(hquery->name);
- free(hquery);
-}
-
-/* If the name looks like an IP address, fake up a host entry, end the
- * query immediately, and return true. Otherwise return false.
- */
-static int fake_hostent(const char *name, int family,
- ares_host_callback callback, void *arg)
-{
- struct hostent hostent;
- char *aliases[1] = { NULL };
- char *addrs[2];
- int result = 0;
- struct in_addr in;
- struct ares_in6_addr in6;
-
- if (family == AF_INET || family == AF_INET6)
- {
- /* It only looks like an IP address if it's all numbers and dots. */
- int numdots = 0, valid = 1;
- const char *p;
- for (p = name; *p; p++)
- {
- if (!ISDIGIT(*p) && *p != '.') {
- valid = 0;
- break;
- } else if (*p == '.') {
- numdots++;
- }
- }
-
- /* if we don't have 3 dots, it is illegal
- * (although inet_addr doesn't think so).
- */
- if (numdots != 3 || !valid)
- result = 0;
- else
- result = ((in.s_addr = inet_addr(name)) == INADDR_NONE ? 0 : 1);
-
- if (result)
- family = AF_INET;
- }
- if (family == AF_INET6)
- result = (ares_inet_pton(AF_INET6, name, &in6) < 1 ? 0 : 1);
-
- if (!result)
- return 0;
-
- if (family == AF_INET)
- {
- hostent.h_length = (int)sizeof(struct in_addr);
- addrs[0] = (char *)∈
- }
- else if (family == AF_INET6)
- {
- hostent.h_length = (int)sizeof(struct ares_in6_addr);
- addrs[0] = (char *)&in6;
- }
- /* Duplicate the name, to avoid a constness violation. */
- hostent.h_name = strdup(name);
- if (!hostent.h_name)
- {
- callback(arg, ARES_ENOMEM, 0, NULL);
- return 1;
- }
-
- /* Fill in the rest of the host structure and terminate the query. */
- addrs[1] = NULL;
- hostent.h_aliases = aliases;
- hostent.h_addrtype = family;
- hostent.h_addr_list = addrs;
- callback(arg, ARES_SUCCESS, 0, &hostent);
-
- free((char *)(hostent.h_name));
- return 1;
-}
-
-/* This is an API method */
-int ares_gethostbyname_file(ares_channel channel, const char *name,
- int family, struct hostent **host)
-{
- int result;
-
- /* We only take the channel to ensure that ares_init() been called. */
- if(channel == NULL)
- {
- /* Anything will do, really. This seems fine, and is consistent with
- other error cases. */
- *host = NULL;
- return ARES_ENOTFOUND;
- }
-
- /* Just chain to the internal implementation we use here; it's exactly
- * what we want.
- */
- result = file_lookup(name, family, host);
- if(result != ARES_SUCCESS)
- {
- /* We guarantee a NULL hostent on failure. */
- *host = NULL;
- }
- return result;
-}
-
-static int file_lookup(const char *name, int family, struct hostent **host)
-{
- FILE *fp;
- char **alias;
- int status;
- int error;
-
-#ifdef WIN32
- char PATH_HOSTS[MAX_PATH];
- if (IS_NT()) {
- char tmp[MAX_PATH];
- HKEY hkeyHosts;
-
- if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0, KEY_READ,
- &hkeyHosts) == ERROR_SUCCESS)
- {
- DWORD dwLength = MAX_PATH;
- RegQueryValueEx(hkeyHosts, DATABASEPATH, NULL, NULL, (LPBYTE)tmp,
- &dwLength);
- ExpandEnvironmentStrings(tmp, PATH_HOSTS, MAX_PATH);
- RegCloseKey(hkeyHosts);
- }
- }
- else
- GetWindowsDirectory(PATH_HOSTS, MAX_PATH);
-
- strcat(PATH_HOSTS, WIN_PATH_HOSTS);
-
-#elif defined(WATT32)
- extern const char *_w32_GetHostsFile (void);
- const char *PATH_HOSTS = _w32_GetHostsFile();
-
- if (!PATH_HOSTS)
- return ARES_ENOTFOUND;
-#endif
-
- fp = fopen(PATH_HOSTS, "r");
- if (!fp)
- {
- error = ERRNO;
- switch(error)
- {
- case ENOENT:
- case ESRCH:
- return ARES_ENOTFOUND;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n",
- PATH_HOSTS));
- *host = NULL;
- return ARES_EFILE;
- }
- }
- while ((status = ares__get_hostent(fp, family, host)) == ARES_SUCCESS)
- {
- if (strcasecmp((*host)->h_name, name) == 0)
- break;
- for (alias = (*host)->h_aliases; *alias; alias++)
- {
- if (strcasecmp(*alias, name) == 0)
- break;
- }
- if (*alias)
- break;
- ares_free_hostent(*host);
- }
- fclose(fp);
- if (status == ARES_EOF)
- status = ARES_ENOTFOUND;
- if (status != ARES_SUCCESS)
- *host = NULL;
- return status;
-}
-
-static void sort_addresses(struct hostent *host,
- const struct apattern *sortlist, int nsort)
-{
- struct in_addr a1, a2;
- int i1, i2, ind1, ind2;
-
- /* This is a simple insertion sort, not optimized at all. i1 walks
- * through the address list, with the loop invariant that everything
- * to the left of i1 is sorted. In the loop body, the value at i1 is moved
- * back through the list (via i2) until it is in sorted order.
- */
- for (i1 = 0; host->h_addr_list[i1]; i1++)
- {
- memcpy(&a1, host->h_addr_list[i1], sizeof(struct in_addr));
- ind1 = get_address_index(&a1, sortlist, nsort);
- for (i2 = i1 - 1; i2 >= 0; i2--)
- {
- memcpy(&a2, host->h_addr_list[i2], sizeof(struct in_addr));
- ind2 = get_address_index(&a2, sortlist, nsort);
- if (ind2 <= ind1)
- break;
- memcpy(host->h_addr_list[i2 + 1], &a2, sizeof(struct in_addr));
- }
- memcpy(host->h_addr_list[i2 + 1], &a1, sizeof(struct in_addr));
- }
-}
-
-/* Find the first entry in sortlist which matches addr. Return nsort
- * if none of them match.
- */
-static int get_address_index(const struct in_addr *addr,
- const struct apattern *sortlist,
- int nsort)
-{
- int i;
-
- for (i = 0; i < nsort; i++)
- {
- if (sortlist[i].family != AF_INET)
- continue;
- if (sortlist[i].type == PATTERN_MASK)
- {
- if ((addr->s_addr & sortlist[i].mask.addr4.s_addr)
- == sortlist[i].addrV4.s_addr)
- break;
- }
- else
- {
- if (!ares_bitncmp(&addr->s_addr, &sortlist[i].addrV4.s_addr,
- sortlist[i].mask.bits))
- break;
- }
- }
- return i;
-}
-
-static void sort6_addresses(struct hostent *host,
- const struct apattern *sortlist, int nsort)
-{
- struct ares_in6_addr a1, a2;
- int i1, i2, ind1, ind2;
-
- /* This is a simple insertion sort, not optimized at all. i1 walks
- * through the address list, with the loop invariant that everything
- * to the left of i1 is sorted. In the loop body, the value at i1 is moved
- * back through the list (via i2) until it is in sorted order.
- */
- for (i1 = 0; host->h_addr_list[i1]; i1++)
- {
- memcpy(&a1, host->h_addr_list[i1], sizeof(struct ares_in6_addr));
- ind1 = get6_address_index(&a1, sortlist, nsort);
- for (i2 = i1 - 1; i2 >= 0; i2--)
- {
- memcpy(&a2, host->h_addr_list[i2], sizeof(struct ares_in6_addr));
- ind2 = get6_address_index(&a2, sortlist, nsort);
- if (ind2 <= ind1)
- break;
- memcpy(host->h_addr_list[i2 + 1], &a2, sizeof(struct ares_in6_addr));
- }
- memcpy(host->h_addr_list[i2 + 1], &a1, sizeof(struct ares_in6_addr));
- }
-}
-
-/* Find the first entry in sortlist which matches addr. Return nsort
- * if none of them match.
- */
-static int get6_address_index(const struct ares_in6_addr *addr,
- const struct apattern *sortlist,
- int nsort)
-{
- int i;
-
- for (i = 0; i < nsort; i++)
- {
- if (sortlist[i].family != AF_INET6)
- continue;
- if (!ares_bitncmp(addr,
- &sortlist[i].addrV6,
- sortlist[i].mask.bits))
- break;
- }
- return i;
-}
+++ /dev/null
-
-/* Copyright 2005 by Dominick Meglio
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-#include "ares_setup.h"
-
-#ifdef HAVE_GETSERVBYPORT_R
-# if !defined(GETSERVBYPORT_R_ARGS) || \
- (GETSERVBYPORT_R_ARGS < 4) || (GETSERVBYPORT_R_ARGS > 6)
-# error "you MUST specifiy a valid number of arguments for getservbyport_r"
-# endif
-#endif
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_NET_IF_H
-#include <net/if.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "ares.h"
-#include "ares_ipv6.h"
-#include "inet_ntop.h"
-#include "ares_private.h"
-
-struct nameinfo_query {
- ares_nameinfo_callback callback;
- void *arg;
- union {
- struct sockaddr_in addr4;
- struct sockaddr_in6 addr6;
- } addr;
- int family;
- int flags;
- int timeouts;
-};
-
-#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
-#define IPBUFSIZ \
- (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") + IF_NAMESIZE)
-#else
-#define IPBUFSIZ \
- (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"))
-#endif
-
-static void nameinfo_callback(void *arg, int status, int timeouts,
- struct hostent *host);
-static char *lookup_service(unsigned short port, int flags,
- char *buf, size_t buflen);
-#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
-static void append_scopeid(struct sockaddr_in6 *addr6, unsigned int scopeid,
- char *buf, size_t buflen);
-#endif
-static char *ares_striendstr(const char *s1, const char *s2);
-
-void ares_getnameinfo(ares_channel channel, const struct sockaddr *sa,
- ares_socklen_t salen,
- int flags, ares_nameinfo_callback callback, void *arg)
-{
- struct sockaddr_in *addr = NULL;
- struct sockaddr_in6 *addr6 = NULL;
- struct nameinfo_query *niquery;
- unsigned int port = 0;
-
- /* Validate socket address family and length */
- if ((sa->sa_family == AF_INET) &&
- (salen == sizeof(struct sockaddr_in)))
- {
- addr = (struct sockaddr_in *)sa;
- port = addr->sin_port;
- }
- else if ((sa->sa_family == AF_INET6) &&
- (salen == sizeof(struct sockaddr_in6)))
- {
- addr6 = (struct sockaddr_in6 *)sa;
- port = addr6->sin6_port;
- }
- else
- {
- callback(arg, ARES_ENOTIMP, 0, NULL, NULL);
- return;
- }
-
- /* If neither, assume they want a host */
- if (!(flags & ARES_NI_LOOKUPSERVICE) && !(flags & ARES_NI_LOOKUPHOST))
- flags |= ARES_NI_LOOKUPHOST;
-
- /* All they want is a service, no need for DNS */
- if ((flags & ARES_NI_LOOKUPSERVICE) && !(flags & ARES_NI_LOOKUPHOST))
- {
- char buf[33], *service;
-
- service = lookup_service((unsigned short)(port & 0xffff),
- flags, buf, sizeof(buf));
- callback(arg, ARES_SUCCESS, 0, NULL, service);
- return;
- }
-
- /* They want a host lookup */
- if ((flags & ARES_NI_LOOKUPHOST))
- {
- /* A numeric host can be handled without DNS */
- if ((flags & ARES_NI_NUMERICHOST))
- {
- char ipbuf[IPBUFSIZ];
- char srvbuf[33];
- char *service = NULL;
- ipbuf[0] = 0;
-
- /* Specifying not to lookup a host, but then saying a host
- * is required has to be illegal.
- */
- if (flags & ARES_NI_NAMEREQD)
- {
- callback(arg, ARES_EBADFLAGS, 0, NULL, NULL);
- return;
- }
- if (salen == sizeof(struct sockaddr_in6))
- {
- ares_inet_ntop(AF_INET6, &addr6->sin6_addr, ipbuf, IPBUFSIZ);
- /* If the system supports scope IDs, use it */
-#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
- append_scopeid(addr6, flags, ipbuf, sizeof(ipbuf));
-#endif
- }
- else
- {
- ares_inet_ntop(AF_INET, &addr->sin_addr, ipbuf, IPBUFSIZ);
- }
- /* They also want a service */
- if (flags & ARES_NI_LOOKUPSERVICE)
- service = lookup_service((unsigned short)(port & 0xffff),
- flags, srvbuf, sizeof(srvbuf));
- callback(arg, ARES_SUCCESS, 0, ipbuf, service);
- return;
- }
- /* This is where a DNS lookup becomes necessary */
- else
- {
- niquery = malloc(sizeof(struct nameinfo_query));
- if (!niquery)
- {
- callback(arg, ARES_ENOMEM, 0, NULL, NULL);
- return;
- }
- niquery->callback = callback;
- niquery->arg = arg;
- niquery->flags = flags;
- niquery->timeouts = 0;
- if (sa->sa_family == AF_INET)
- {
- niquery->family = AF_INET;
- memcpy(&niquery->addr.addr4, addr, sizeof(addr));
- ares_gethostbyaddr(channel, &addr->sin_addr,
- sizeof(struct in_addr), AF_INET,
- nameinfo_callback, niquery);
- }
- else
- {
- niquery->family = AF_INET6;
- memcpy(&niquery->addr.addr6, addr6, sizeof(addr6));
- ares_gethostbyaddr(channel, &addr6->sin6_addr,
- sizeof(struct ares_in6_addr), AF_INET6,
- nameinfo_callback, niquery);
- }
- }
- }
-}
-
-static void nameinfo_callback(void *arg, int status, int timeouts,
- struct hostent *host)
-{
- struct nameinfo_query *niquery = (struct nameinfo_query *) arg;
- char srvbuf[33];
- char *service = NULL;
-
- niquery->timeouts += timeouts;
- if (status == ARES_SUCCESS)
- {
- /* They want a service too */
- if (niquery->flags & ARES_NI_LOOKUPSERVICE)
- {
- if (niquery->family == AF_INET)
- service = lookup_service(niquery->addr.addr4.sin_port,
- niquery->flags, srvbuf, sizeof(srvbuf));
- else
- service = lookup_service(niquery->addr.addr6.sin6_port,
- niquery->flags, srvbuf, sizeof(srvbuf));
- }
- /* NOFQDN means we have to strip off the domain name portion. We do
- this by determining our own domain name, then searching the string
- for this domain name and removing it.
- */
-#ifdef HAVE_GETHOSTNAME
- if (niquery->flags & ARES_NI_NOFQDN)
- {
- char buf[255];
- char *domain;
- gethostname(buf, 255);
- if ((domain = strchr(buf, '.')) != NULL)
- {
- char *end = ares_striendstr(host->h_name, domain);
- if (end)
- *end = 0;
- }
- }
-#endif
- niquery->callback(niquery->arg, ARES_SUCCESS, niquery->timeouts,
- (char *)(host->h_name),
- service);
- free(niquery);
- return;
- }
- /* We couldn't find the host, but it's OK, we can use the IP */
- else if (status == ARES_ENOTFOUND && !(niquery->flags & ARES_NI_NAMEREQD))
- {
- char ipbuf[IPBUFSIZ];
- if (niquery->family == AF_INET)
- ares_inet_ntop(AF_INET, &niquery->addr.addr4.sin_addr, ipbuf,
- IPBUFSIZ);
- else
- {
- ares_inet_ntop(AF_INET6, &niquery->addr.addr6.sin6_addr, ipbuf,
- IPBUFSIZ);
-#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
- append_scopeid(&niquery->addr.addr6, niquery->flags, ipbuf,
- sizeof(ipbuf));
-#endif
- }
- /* They want a service too */
- if (niquery->flags & ARES_NI_LOOKUPSERVICE)
- {
- if (niquery->family == AF_INET)
- service = lookup_service(niquery->addr.addr4.sin_port,
- niquery->flags, srvbuf, sizeof(srvbuf));
- else
- service = lookup_service(niquery->addr.addr6.sin6_port,
- niquery->flags, srvbuf, sizeof(srvbuf));
- }
- niquery->callback(niquery->arg, ARES_SUCCESS, niquery->timeouts, ipbuf,
- service);
- free(niquery);
- return;
- }
- niquery->callback(niquery->arg, status, niquery->timeouts, NULL, NULL);
- free(niquery);
-}
-
-static char *lookup_service(unsigned short port, int flags,
- char *buf, size_t buflen)
-{
- const char *proto;
- struct servent *sep;
-#ifdef HAVE_GETSERVBYPORT_R
- struct servent se;
-#endif
- char tmpbuf[4096];
-
- if (port)
- {
- if (flags & ARES_NI_NUMERICSERV)
- sep = NULL;
- else
- {
- if (flags & ARES_NI_UDP)
- proto = "udp";
- else if (flags & ARES_NI_SCTP)
- proto = "sctp";
- else if (flags & ARES_NI_DCCP)
- proto = "dccp";
- else
- proto = "tcp";
-#ifdef HAVE_GETSERVBYPORT_R
- sep = &se;
- memset(tmpbuf, 0, sizeof(tmpbuf));
-#if GETSERVBYPORT_R_ARGS == 6
- if (getservbyport_r(port, proto, &se, (void *)tmpbuf,
- sizeof(tmpbuf), &sep) != 0)
- sep = NULL;
-#elif GETSERVBYPORT_R_ARGS == 5
- sep = getservbyport_r(port, proto, &se, (void *)tmpbuf,
- sizeof(tmpbuf));
-#elif GETSERVBYPORT_R_ARGS == 4
- if (getservbyport_r(port, proto, &se, (void *)tmpbuf) != 0)
- sep = NULL;
-#else
- /* Lets just hope the OS uses TLS! */
- sep = getservbyport(port, proto);
-#endif
-#else
- /* Lets just hope the OS uses TLS! */
-#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
- sep = getservbyport(port, (char*)proto);
-#else
- sep = getservbyport(port, proto);
-#endif
-#endif
- }
- if (sep && sep->s_name)
- /* get service name */
- strcpy(tmpbuf, sep->s_name);
- else
- /* get port as a string */
- sprintf(tmpbuf, "%u", (unsigned int)ntohs(port));
- if (strlen(tmpbuf) < buflen)
- /* return it if buffer big enough */
- strcpy(buf, tmpbuf);
- else
- /* avoid reusing previous one */
- buf[0] = '\0';
- return buf;
- }
- buf[0] = '\0';
- return NULL;
-}
-
-#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
-static void append_scopeid(struct sockaddr_in6 *addr6, unsigned int flags,
- char *buf, size_t buflen)
-{
-#ifdef HAVE_IF_INDEXTONAME
- int is_ll, is_mcll;
-#endif
- static const char fmt_u[] = "%u";
- static const char fmt_lu[] = "%lu";
- char tmpbuf[IF_NAMESIZE + 2];
- size_t bufl;
- const char *fmt = (sizeof(addr6->sin6_scope_id) > sizeof(unsigned int))?
- fmt_lu:fmt_u;
-
- tmpbuf[0] = '%';
-
-#ifdef HAVE_IF_INDEXTONAME
- is_ll = IN6_IS_ADDR_LINKLOCAL(&addr6->sin6_addr);
- is_mcll = IN6_IS_ADDR_MC_LINKLOCAL(&addr6->sin6_addr);
- if ((flags & ARES_NI_NUMERICSCOPE) ||
- (!is_ll && !is_mcll))
- {
- sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
- }
- else
- {
- if (if_indextoname(addr6->sin6_scope_id, &tmpbuf[1]) == NULL)
- sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
- }
-#else
- sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
- (void) flags;
-#endif
- tmpbuf[IF_NAMESIZE + 1] = '\0';
- bufl = strlen(buf);
-
- if(bufl + strlen(tmpbuf) < buflen)
- /* only append the scopeid string if it fits in the target buffer */
- strcpy(&buf[bufl], tmpbuf);
-}
-#endif
-
-/* Determines if s1 ends with the string in s2 (case-insensitive) */
-static char *ares_striendstr(const char *s1, const char *s2)
-{
- const char *c1, *c2, *c1_begin;
- int lo1, lo2;
- size_t s1_len = strlen(s1), s2_len = strlen(s2);
-
- /* If the substr is longer than the full str, it can't match */
- if (s2_len > s1_len)
- return NULL;
-
- /* Jump to the end of s1 minus the length of s2 */
- c1_begin = s1+s1_len-s2_len;
- c1 = (const char *)c1_begin;
- c2 = s2;
- while (c2 < s2+s2_len)
- {
- lo1 = TOLOWER(*c1);
- lo2 = TOLOWER(*c2);
- if (lo1 != lo2)
- return NULL;
- else
- {
- c1++;
- c2++;
- }
- }
- if (c2 == c1 && c2 == NULL)
- return (char *)c1_begin;
- return NULL;
-}
+++ /dev/null
-/*
- * Original file name getopt.c Initial import into the c-ares source tree
- * on 2007-04-11. Lifted from version 5.2 of the 'Open Mash' project with
- * the modified BSD license, BSD license without the advertising clause.
- *
- */
-
-/*
- * getopt.c --
- *
- * Standard UNIX getopt function. Code is from BSD.
- *
- * Copyright (c) 1987-2001 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * A. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * B. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * C. Neither the names of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
- * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/* #if !defined(lint)
- * static char sccsid[] = "@(#)getopt.c 8.2 (Berkeley) 4/2/94";
- * #endif
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "ares_getopt.h"
-
-int opterr = 1, /* if error message should be printed */
- optind = 1; /* index into parent argv vector */
-int optopt = 0; /* character checked for validity */
-static int optreset; /* reset getopt */
-char *optarg; /* argument associated with option */
-
-#define BADCH (int)'?'
-#define BADARG (int)':'
-#define EMSG (char *)""
-
-/*
- * ares_getopt --
- * Parse argc/argv argument vector.
- */
-int
-ares_getopt(int nargc, char * const nargv[], const char *ostr)
-{
- static char *place = EMSG; /* option letter processing */
- char *oli; /* option letter list index */
-
- if (optreset || !*place) { /* update scanning pointer */
- optreset = 0;
- if (optind >= nargc || *(place = nargv[optind]) != '-') {
- place = EMSG;
- return (EOF);
- }
- if (place[1] && *++place == '-') { /* found "--" */
- ++optind;
- place = EMSG;
- return (EOF);
- }
- } /* option letter okay? */
- if ((optopt = (int)*place++) == (int)':' ||
- (oli = strchr(ostr, optopt)) == NULL) {
- /*
- * if the user didn't specify '-' as an option,
- * assume it means EOF.
- */
- if (optopt == (int)'-')
- return (EOF);
- if (!*place)
- ++optind;
- if (opterr && *ostr != ':')
- (void)fprintf(stderr,
- "%s: illegal option -- %c\n", __FILE__, optopt);
- return (BADCH);
- }
- if (*++oli != ':') { /* don't need argument */
- optarg = NULL;
- if (!*place)
- ++optind;
- }
- else { /* need an argument */
- if (*place) /* no white space */
- optarg = place;
- else if (nargc <= ++optind) { /* no arg */
- place = EMSG;
- if (*ostr == ':')
- return (BADARG);
- if (opterr)
- (void)fprintf(stderr,
- "%s: option requires an argument -- %c\n",
- __FILE__, optopt);
- return (BADCH);
- }
- else /* white space */
- optarg = nargv[optind];
- place = EMSG;
- ++optind;
- }
- return (optopt); /* dump back option letter */
-}
+++ /dev/null
-#ifndef ARES_GETOPT_H
-#define ARES_GETOPT_H
-
-/*
- * Copyright (c) 1987-2001 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * A. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * B. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * C. Neither the names of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
- * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-
-int ares_getopt(int nargc, char * const nargv[], const char *ostr);
-
-#undef optarg
-#undef optind
-#undef opterr
-#undef optopt
-#undef optreset
-
-#define optarg ares_optarg
-#define optind ares_optind
-#define opterr ares_opterr
-#define optopt ares_optopt
-#define optreset ares_optreset
-
-extern char *optarg;
-extern int optind;
-extern int opterr;
-extern int optopt;
-
-#endif /* ARES_GETOPT_H */
+++ /dev/null
-
-/* Copyright (C) 2005 - 2010, Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-
-#include "ares.h"
-#include "ares_private.h"
-
-int ares_getsock(ares_channel channel,
- ares_socket_t *socks,
- int numsocks) /* size of the 'socks' array */
-{
- struct server_state *server;
- int i;
- int sockindex=0;
- int bitmap = 0;
- unsigned int setbits = 0xffffffff;
-
- /* Are there any active queries? */
- int active_queries = !ares__is_list_empty(&(channel->all_queries));
-
- for (i = 0;
- (i < channel->nservers) && (sockindex < ARES_GETSOCK_MAXNUM);
- i++)
- {
- server = &channel->servers[i];
- /* We only need to register interest in UDP sockets if we have
- * outstanding queries.
- */
- if (active_queries && server->udp_socket != ARES_SOCKET_BAD)
- {
- if(sockindex >= numsocks)
- break;
- socks[sockindex] = server->udp_socket;
- bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex);
- sockindex++;
- }
- /* We always register for TCP events, because we want to know
- * when the other side closes the connection, so we don't waste
- * time trying to use a broken connection.
- */
- if (server->tcp_socket != ARES_SOCKET_BAD)
- {
- if(sockindex >= numsocks)
- break;
- socks[sockindex] = server->tcp_socket;
- bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex);
-
- if (server->qhead && active_queries)
- /* then the tcp socket is also writable! */
- bitmap |= ARES_GETSOCK_WRITABLE(setbits, sockindex);
-
- sockindex++;
- }
- }
- return bitmap;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2007-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef USE_WINSOCK
-#include <iphlpapi.h>
-#endif
-
-#ifdef HAVE_SYS_PARAM_H
-#include <sys/param.h>
-#endif
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-
-#ifdef HAVE_NETDB_H
-#include <netdb.h>
-#endif
-
-#ifdef HAVE_ARPA_INET_H
-#include <arpa/inet.h>
-#endif
-
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <time.h>
-#include <errno.h>
-#include "ares.h"
-#include "inet_net_pton.h"
-#include "ares_library_init.h"
-#include "ares_nowarn.h"
-#include "ares_private.h"
-
-#ifdef ANDROID
-#include <sys/system_properties.h>
-#endif
-
-#ifdef WATT32
-#undef WIN32 /* Redefined in MingW/MSVC headers */
-#endif
-
-static int init_by_options(ares_channel channel, const struct ares_options *options,
- int optmask);
-static int init_by_environment(ares_channel channel);
-static int init_by_resolv_conf(ares_channel channel);
-static int init_by_defaults(ares_channel channel);
-
-#ifndef WATT32
-static int config_nameserver(struct server_state **servers, int *nservers,
- char *str);
-#endif
-static int set_search(ares_channel channel, const char *str);
-static int set_options(ares_channel channel, const char *str);
-static const char *try_option(const char *p, const char *q, const char *opt);
-static int init_id_key(rc4_key* key,int key_data_len);
-
-#if !defined(WIN32) && !defined(WATT32)
-static int sortlist_alloc(struct apattern **sortlist, int *nsort, struct apattern *pat);
-static int ip_addr(const char *s, ssize_t len, struct in_addr *addr);
-static void natural_mask(struct apattern *pat);
-static int config_domain(ares_channel channel, char *str);
-static int config_lookup(ares_channel channel, const char *str,
- const char *bindch, const char *filech);
-static int config_sortlist(struct apattern **sortlist, int *nsort,
- const char *str);
-static char *try_config(char *s, const char *opt);
-#endif
-
-#define ARES_CONFIG_CHECK(x) (x->lookups && x->nsort > -1 && \
- x->nservers > -1 && \
- x->ndomains > -1 && \
- x->ndots > -1 && x->timeout > -1 && \
- x->tries > -1)
-
-int ares_init(ares_channel *channelptr)
-{
- return ares_init_options(channelptr, NULL, 0);
-}
-
-int ares_init_options(ares_channel *channelptr, struct ares_options *options,
- int optmask)
-{
- ares_channel channel;
- int i;
- int status = ARES_SUCCESS;
- struct timeval now;
-
-#ifdef CURLDEBUG
- const char *env = getenv("CARES_MEMDEBUG");
-
- if (env)
- curl_memdebug(env);
- env = getenv("CARES_MEMLIMIT");
- if (env) {
- char *endptr;
- long num = strtol(env, &endptr, 10);
- if((endptr != env) && (endptr == env + strlen(env)) && (num > 0))
- curl_memlimit(num);
- }
-#endif
-
- if (ares_library_initialized() != ARES_SUCCESS)
- return ARES_ENOTINITIALIZED;
-
- channel = malloc(sizeof(struct ares_channeldata));
- if (!channel) {
- *channelptr = NULL;
- return ARES_ENOMEM;
- }
-
- now = ares__tvnow();
-
- /* Set everything to distinguished values so we know they haven't
- * been set yet.
- */
- channel->flags = -1;
- channel->timeout = -1;
- channel->tries = -1;
- channel->ndots = -1;
- channel->rotate = -1;
- channel->udp_port = -1;
- channel->tcp_port = -1;
- channel->socket_send_buffer_size = -1;
- channel->socket_receive_buffer_size = -1;
- channel->nservers = -1;
- channel->ndomains = -1;
- channel->nsort = -1;
- channel->tcp_connection_generation = 0;
- channel->lookups = NULL;
- channel->domains = NULL;
- channel->sortlist = NULL;
- channel->servers = NULL;
- channel->sock_state_cb = NULL;
- channel->sock_state_cb_data = NULL;
- channel->sock_create_cb = NULL;
- channel->sock_create_cb_data = NULL;
-
- channel->last_server = 0;
- channel->last_timeout_processed = (time_t)now.tv_sec;
-
- memset(&channel->local_dev_name, 0, sizeof(channel->local_dev_name));
- channel->local_ip4 = 0;
- memset(&channel->local_ip6, 0, sizeof(channel->local_ip6));
-
- /* Initialize our lists of queries */
- ares__init_list_head(&(channel->all_queries));
- for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
- {
- ares__init_list_head(&(channel->queries_by_qid[i]));
- }
- for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
- {
- ares__init_list_head(&(channel->queries_by_timeout[i]));
- }
-
- /* Initialize configuration by each of the four sources, from highest
- * precedence to lowest.
- */
-
- if (status == ARES_SUCCESS) {
- status = init_by_options(channel, options, optmask);
- if (status != ARES_SUCCESS)
- DEBUGF(fprintf(stderr, "Error: init_by_options failed: %s\n",
- ares_strerror(status)));
- }
- if (status == ARES_SUCCESS) {
- status = init_by_environment(channel);
- if (status != ARES_SUCCESS)
- DEBUGF(fprintf(stderr, "Error: init_by_environment failed: %s\n",
- ares_strerror(status)));
- }
- if (status == ARES_SUCCESS) {
- status = init_by_resolv_conf(channel);
- if (status != ARES_SUCCESS)
- DEBUGF(fprintf(stderr, "Error: init_by_resolv_conf failed: %s\n",
- ares_strerror(status)));
- }
-
- /*
- * No matter what failed or succeeded, seed defaults to provide
- * useful behavior for things that we missed.
- */
- status = init_by_defaults(channel);
- if (status != ARES_SUCCESS)
- DEBUGF(fprintf(stderr, "Error: init_by_defaults failed: %s\n",
- ares_strerror(status)));
-
- /* Generate random key */
-
- if (status == ARES_SUCCESS) {
- status = init_id_key(&channel->id_key, ARES_ID_KEY_LEN);
- if (status == ARES_SUCCESS)
- channel->next_id = ares__generate_new_id(&channel->id_key);
- else
- DEBUGF(fprintf(stderr, "Error: init_id_key failed: %s\n",
- ares_strerror(status)));
- }
-
- if (status != ARES_SUCCESS)
- {
- /* Something failed; clean up memory we may have allocated. */
- if (channel->servers)
- free(channel->servers);
- if (channel->domains)
- {
- for (i = 0; i < channel->ndomains; i++)
- free(channel->domains[i]);
- free(channel->domains);
- }
- if (channel->sortlist)
- free(channel->sortlist);
- if(channel->lookups)
- free(channel->lookups);
- free(channel);
- return status;
- }
-
- /* Trim to one server if ARES_FLAG_PRIMARY is set. */
- if ((channel->flags & ARES_FLAG_PRIMARY) && channel->nservers > 1)
- channel->nservers = 1;
-
- ares__init_servers_state(channel);
-
- *channelptr = channel;
- return ARES_SUCCESS;
-}
-
-/* ares_dup() duplicates a channel handle with all its options and returns a
- new channel handle */
-int ares_dup(ares_channel *dest, ares_channel src)
-{
- struct ares_options opts;
- struct ares_addr_node *servers;
- int ipv6_nservers = 0;
- int i, rc;
- int optmask;
-
- *dest = NULL; /* in case of failure return NULL explicitly */
-
- /* First get the options supported by the old ares_save_options() function,
- which is most of them */
- rc = ares_save_options(src, &opts, &optmask);
- if(rc)
- return rc;
-
- /* Then create the new channel with those options */
- rc = ares_init_options(dest, &opts, optmask);
-
- /* destroy the options copy to not leak any memory */
- ares_destroy_options(&opts);
-
- if(rc)
- return rc;
-
- /* Now clone the options that ares_save_options() doesn't support. */
- (*dest)->sock_create_cb = src->sock_create_cb;
- (*dest)->sock_create_cb_data = src->sock_create_cb_data;
-
- strncpy((*dest)->local_dev_name, src->local_dev_name, sizeof(src->local_dev_name));
- (*dest)->local_ip4 = src->local_ip4;
- memcpy((*dest)->local_ip6, src->local_ip6, sizeof(src->local_ip6));
-
- /* Full name server cloning required when not all are IPv4 */
- for (i = 0; i < src->nservers; i++)
- {
- if (src->servers[i].addr.family != AF_INET) {
- ipv6_nservers++;
- break;
- }
- }
- if (ipv6_nservers) {
- rc = ares_get_servers(src, &servers);
- if (rc != ARES_SUCCESS)
- return rc;
- rc = ares_set_servers(*dest, servers);
- ares_free_data(servers);
- if (rc != ARES_SUCCESS)
- return rc;
- }
-
- return ARES_SUCCESS; /* everything went fine */
-}
-
-/* Save options from initialized channel */
-int ares_save_options(ares_channel channel, struct ares_options *options,
- int *optmask)
-{
- int i, j;
- int ipv4_nservers = 0;
-
- /* Zero everything out */
- memset(options, 0, sizeof(struct ares_options));
-
- if (!ARES_CONFIG_CHECK(channel))
- return ARES_ENODATA;
-
- /* Traditionally the optmask wasn't saved in the channel struct so it was
- recreated here. ROTATE is the first option that has no struct field of
- its own in the public config struct */
- (*optmask) = (ARES_OPT_FLAGS|ARES_OPT_TRIES|ARES_OPT_NDOTS|
- ARES_OPT_UDP_PORT|ARES_OPT_TCP_PORT|ARES_OPT_SOCK_STATE_CB|
- ARES_OPT_SERVERS|ARES_OPT_DOMAINS|ARES_OPT_LOOKUPS|
- ARES_OPT_SORTLIST|ARES_OPT_TIMEOUTMS) |
- (channel->optmask & ARES_OPT_ROTATE);
-
- /* Copy easy stuff */
- options->flags = channel->flags;
-
- /* We return full millisecond resolution but that's only because we don't
- set the ARES_OPT_TIMEOUT anymore, only the new ARES_OPT_TIMEOUTMS */
- options->timeout = channel->timeout;
- options->tries = channel->tries;
- options->ndots = channel->ndots;
- options->udp_port = (unsigned short)channel->udp_port;
- options->tcp_port = (unsigned short)channel->tcp_port;
- options->sock_state_cb = channel->sock_state_cb;
- options->sock_state_cb_data = channel->sock_state_cb_data;
-
- /* Copy IPv4 servers */
- if (channel->nservers) {
- for (i = 0; i < channel->nservers; i++)
- {
- if (channel->servers[i].addr.family == AF_INET)
- ipv4_nservers++;
- }
- if (ipv4_nservers) {
- options->servers = malloc(ipv4_nservers * sizeof(struct server_state));
- if (!options->servers)
- return ARES_ENOMEM;
- for (i = j = 0; i < channel->nservers; i++)
- {
- if (channel->servers[i].addr.family == AF_INET)
- memcpy(&options->servers[j++],
- &channel->servers[i].addr.addrV4,
- sizeof(channel->servers[i].addr.addrV4));
- }
- }
- }
- options->nservers = ipv4_nservers;
-
- /* copy domains */
- if (channel->ndomains) {
- options->domains = malloc(channel->ndomains * sizeof(char *));
- if (!options->domains)
- return ARES_ENOMEM;
-
- for (i = 0; i < channel->ndomains; i++)
- {
- options->ndomains = i;
- options->domains[i] = strdup(channel->domains[i]);
- if (!options->domains[i])
- return ARES_ENOMEM;
- }
- }
- options->ndomains = channel->ndomains;
-
- /* copy lookups */
- if (channel->lookups) {
- options->lookups = strdup(channel->lookups);
- if (!options->lookups && channel->lookups)
- return ARES_ENOMEM;
- }
-
- /* copy sortlist */
- if (channel->nsort) {
- options->sortlist = malloc(channel->nsort * sizeof(struct apattern));
- if (!options->sortlist)
- return ARES_ENOMEM;
- for (i = 0; i < channel->nsort; i++)
- options->sortlist[i] = channel->sortlist[i];
- }
- options->nsort = channel->nsort;
-
- return ARES_SUCCESS;
-}
-
-static int init_by_options(ares_channel channel,
- const struct ares_options *options,
- int optmask)
-{
- int i;
-
- /* Easy stuff. */
- if ((optmask & ARES_OPT_FLAGS) && channel->flags == -1)
- channel->flags = options->flags;
- if ((optmask & ARES_OPT_TIMEOUTMS) && channel->timeout == -1)
- channel->timeout = options->timeout;
- else if ((optmask & ARES_OPT_TIMEOUT) && channel->timeout == -1)
- channel->timeout = options->timeout * 1000;
- if ((optmask & ARES_OPT_TRIES) && channel->tries == -1)
- channel->tries = options->tries;
- if ((optmask & ARES_OPT_NDOTS) && channel->ndots == -1)
- channel->ndots = options->ndots;
- if ((optmask & ARES_OPT_ROTATE) && channel->rotate == -1)
- channel->rotate = 1;
- if ((optmask & ARES_OPT_UDP_PORT) && channel->udp_port == -1)
- channel->udp_port = options->udp_port;
- if ((optmask & ARES_OPT_TCP_PORT) && channel->tcp_port == -1)
- channel->tcp_port = options->tcp_port;
- if ((optmask & ARES_OPT_SOCK_STATE_CB) && channel->sock_state_cb == NULL)
- {
- channel->sock_state_cb = options->sock_state_cb;
- channel->sock_state_cb_data = options->sock_state_cb_data;
- }
- if ((optmask & ARES_OPT_SOCK_SNDBUF)
- && channel->socket_send_buffer_size == -1)
- channel->socket_send_buffer_size = options->socket_send_buffer_size;
- if ((optmask & ARES_OPT_SOCK_RCVBUF)
- && channel->socket_receive_buffer_size == -1)
- channel->socket_receive_buffer_size = options->socket_receive_buffer_size;
-
- /* Copy the IPv4 servers, if given. */
- if ((optmask & ARES_OPT_SERVERS) && channel->nservers == -1)
- {
- /* Avoid zero size allocations at any cost */
- if (options->nservers > 0)
- {
- channel->servers =
- malloc(options->nservers * sizeof(struct server_state));
- if (!channel->servers)
- return ARES_ENOMEM;
- for (i = 0; i < options->nservers; i++)
- {
- channel->servers[i].addr.family = AF_INET;
- memcpy(&channel->servers[i].addr.addrV4,
- &options->servers[i],
- sizeof(channel->servers[i].addr.addrV4));
- }
- }
- channel->nservers = options->nservers;
- }
-
- /* Copy the domains, if given. Keep channel->ndomains consistent so
- * we can clean up in case of error.
- */
- if ((optmask & ARES_OPT_DOMAINS) && channel->ndomains == -1)
- {
- /* Avoid zero size allocations at any cost */
- if (options->ndomains > 0)
- {
- channel->domains = malloc(options->ndomains * sizeof(char *));
- if (!channel->domains)
- return ARES_ENOMEM;
- for (i = 0; i < options->ndomains; i++)
- {
- channel->ndomains = i;
- channel->domains[i] = strdup(options->domains[i]);
- if (!channel->domains[i])
- return ARES_ENOMEM;
- }
- }
- channel->ndomains = options->ndomains;
- }
-
- /* Set lookups, if given. */
- if ((optmask & ARES_OPT_LOOKUPS) && !channel->lookups)
- {
- channel->lookups = strdup(options->lookups);
- if (!channel->lookups)
- return ARES_ENOMEM;
- }
-
- /* copy sortlist */
- if ((optmask & ARES_OPT_SORTLIST) && (channel->nsort == -1) &&
- (options->nsort>0)) {
- channel->sortlist = malloc(options->nsort * sizeof(struct apattern));
- if (!channel->sortlist)
- return ARES_ENOMEM;
- for (i = 0; i < options->nsort; i++)
- channel->sortlist[i] = options->sortlist[i];
- channel->nsort = options->nsort;
- }
-
- channel->optmask = optmask;
-
- return ARES_SUCCESS;
-}
-
-static int init_by_environment(ares_channel channel)
-{
- const char *localdomain, *res_options;
- int status;
-
- localdomain = getenv("LOCALDOMAIN");
- if (localdomain && channel->ndomains == -1)
- {
- status = set_search(channel, localdomain);
- if (status != ARES_SUCCESS)
- return status;
- }
-
- res_options = getenv("RES_OPTIONS");
- if (res_options)
- {
- status = set_options(channel, res_options);
- if (status != ARES_SUCCESS)
- return status;
- }
-
- return ARES_SUCCESS;
-}
-
-#ifdef WIN32
-/*
- * Warning: returns a dynamically allocated buffer, the user MUST
- * use free() if the function returns 1
- */
-static int get_res_nt(HKEY hKey, const char *subkey, char **obuf)
-{
- /* Test for the size we need */
- DWORD size = 0;
- int result;
-
- result = RegQueryValueEx(hKey, subkey, 0, NULL, NULL, &size);
- if ((result != ERROR_SUCCESS && result != ERROR_MORE_DATA) || !size)
- return 0;
- *obuf = malloc(size+1);
- if (!*obuf)
- return 0;
-
- if (RegQueryValueEx(hKey, subkey, 0, NULL,
- (LPBYTE)*obuf, &size) != ERROR_SUCCESS)
- {
- free(*obuf);
- return 0;
- }
- if (size == 1)
- {
- free(*obuf);
- return 0;
- }
- return 1;
-}
-
-static int get_res_interfaces_nt(HKEY hKey, const char *subkey, char **obuf)
-{
- char enumbuf[39]; /* GUIDs are 38 chars + 1 for NULL */
- DWORD enum_size = 39;
- int idx = 0;
- HKEY hVal;
-
- while (RegEnumKeyEx(hKey, idx++, enumbuf, &enum_size, 0,
- NULL, NULL, NULL) != ERROR_NO_MORE_ITEMS)
- {
- int rc;
-
- enum_size = 39;
- if (RegOpenKeyEx(hKey, enumbuf, 0, KEY_QUERY_VALUE, &hVal) !=
- ERROR_SUCCESS)
- continue;
- rc = get_res_nt(hVal, subkey, obuf);
- RegCloseKey(hVal);
- if (rc)
- return 1;
- }
- return 0;
-}
-
-static int get_iphlpapi_dns_info (char *ret_buf, size_t ret_size)
-{
- FIXED_INFO *fi, *newfi;
- DWORD size = sizeof (*fi);
- IP_ADDR_STRING *ipAddr;
- int i, count = 0;
- int debug = 0;
- size_t ip_size = sizeof("255.255.255.255,")-1;
- size_t left = ret_size;
- char *ret = ret_buf;
- HRESULT res;
-
- fi = malloc(size);
- if (!fi)
- return 0;
-
- res = (*ares_fpGetNetworkParams) (fi, &size);
- if ((res != ERROR_BUFFER_OVERFLOW) && (res != ERROR_SUCCESS))
- goto quit;
-
- newfi = realloc(fi, size);
- if (!newfi)
- goto quit;
-
- fi = newfi;
- res = (*ares_fpGetNetworkParams) (fi, &size);
- if (res != ERROR_SUCCESS)
- goto quit;
-
- if (debug)
- {
- printf ("Host Name: %s\n", fi->HostName);
- printf ("Domain Name: %s\n", fi->DomainName);
- printf ("DNS Servers:\n"
- " %s (primary)\n", fi->DnsServerList.IpAddress.String);
- }
- if (strlen(fi->DnsServerList.IpAddress.String) > 0 &&
- inet_addr(fi->DnsServerList.IpAddress.String) != INADDR_NONE &&
- left > ip_size)
- {
- ret += sprintf (ret, "%s,", fi->DnsServerList.IpAddress.String);
- left -= ret - ret_buf;
- count++;
- }
-
- for (i = 0, ipAddr = fi->DnsServerList.Next; ipAddr && left > ip_size;
- ipAddr = ipAddr->Next, i++)
- {
- if (inet_addr(ipAddr->IpAddress.String) != INADDR_NONE)
- {
- ret += sprintf (ret, "%s,", ipAddr->IpAddress.String);
- left -= ret - ret_buf;
- count++;
- }
- if (debug)
- printf (" %s (secondary %d)\n", ipAddr->IpAddress.String, i+1);
- }
-
-quit:
- if (fi)
- free(fi);
-
- if (debug && left <= ip_size)
- printf ("Too many nameservers. Truncating to %d addressess", count);
- if (ret > ret_buf)
- ret[-1] = '\0';
- return count;
-}
-#endif
-
-static int init_by_resolv_conf(ares_channel channel)
-{
-#ifndef WATT32
- char *line = NULL;
-#endif
- int status = -1, nservers = 0, nsort = 0;
- struct server_state *servers = NULL;
- struct apattern *sortlist = NULL;
-
-#ifdef WIN32
-
- /*
- NameServer info via IPHLPAPI (IP helper API):
- GetNetworkParams() should be the trusted source for this.
- Available in Win-98/2000 and later. If that fail, fall-back to
- registry information.
-
- NameServer Registry:
-
- On Windows 9X, the DNS server can be found in:
-HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP\NameServer
-
- On Windows NT/2000/XP/2003:
-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\NameServer
- or
-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DhcpNameServer
- or
-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\{AdapterID}\
-NameServer
- or
-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\{AdapterID}\
-DhcpNameServer
- */
-
- HKEY mykey;
- HKEY subkey;
- DWORD data_type;
- DWORD bytes;
- DWORD result;
- char buf[256];
-
- if (channel->nservers > -1) /* don't override ARES_OPT_SERVER */
- return ARES_SUCCESS;
-
- if (get_iphlpapi_dns_info(buf,sizeof(buf)) > 0)
- {
- status = config_nameserver(&servers, &nservers, buf);
- if (status == ARES_SUCCESS)
- goto okay;
- }
-
- if (IS_NT())
- {
- if (RegOpenKeyEx(
- HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0,
- KEY_READ, &mykey
- ) == ERROR_SUCCESS)
- {
- RegOpenKeyEx(mykey, "Interfaces", 0,
- KEY_QUERY_VALUE|KEY_ENUMERATE_SUB_KEYS, &subkey);
- if (get_res_nt(mykey, NAMESERVER, &line))
- {
- status = config_nameserver(&servers, &nservers, line);
- free(line);
- }
- else if (get_res_nt(mykey, DHCPNAMESERVER, &line))
- {
- status = config_nameserver(&servers, &nservers, line);
- free(line);
- }
- /* Try the interfaces */
- else if (get_res_interfaces_nt(subkey, NAMESERVER, &line))
- {
- status = config_nameserver(&servers, &nservers, line);
- free(line);
- }
- else if (get_res_interfaces_nt(subkey, DHCPNAMESERVER, &line))
- {
- status = config_nameserver(&servers, &nservers, line);
- free(line);
- }
- RegCloseKey(subkey);
- RegCloseKey(mykey);
- }
- }
- else
- {
- if (RegOpenKeyEx(
- HKEY_LOCAL_MACHINE, WIN_NS_9X, 0,
- KEY_READ, &mykey
- ) == ERROR_SUCCESS)
- {
- if ((result = RegQueryValueEx(
- mykey, NAMESERVER, NULL, &data_type,
- NULL, &bytes
- )
- ) == ERROR_SUCCESS ||
- result == ERROR_MORE_DATA)
- {
- if (bytes)
- {
- line = malloc(bytes+1);
- if (RegQueryValueEx(mykey, NAMESERVER, NULL, &data_type,
- (unsigned char *)line, &bytes) ==
- ERROR_SUCCESS)
- {
- status = config_nameserver(&servers, &nservers, line);
- }
- free(line);
- }
- }
- }
- RegCloseKey(mykey);
- }
-
- if (status == ARES_SUCCESS)
- status = ARES_EOF;
- else
- /* Catch the case when all the above checks fail (which happens when there
- is no network card or the cable is unplugged) */
- status = ARES_EFILE;
-
-#elif defined(__riscos__)
-
- /* Under RISC OS, name servers are listed in the
- system variable Inet$Resolvers, space separated. */
-
- line = getenv("Inet$Resolvers");
- status = ARES_EOF;
- if (line) {
- char *resolvers = strdup(line), *pos, *space;
-
- if (!resolvers)
- return ARES_ENOMEM;
-
- pos = resolvers;
- do {
- space = strchr(pos, ' ');
- if (space)
- *space = '\0';
- status = config_nameserver(&servers, &nservers, pos);
- if (status != ARES_SUCCESS)
- break;
- pos = space + 1;
- } while (space);
-
- if (status == ARES_SUCCESS)
- status = ARES_EOF;
-
- free(resolvers);
- }
-
-#elif defined(WATT32)
- int i;
-
- sock_init();
- for (i = 0; def_nameservers[i]; i++)
- ;
- if (i == 0)
- return ARES_SUCCESS; /* use localhost DNS server */
-
- nservers = i;
- servers = calloc(i, sizeof(struct server_state));
- if (!servers)
- return ARES_ENOMEM;
-
- for (i = 0; def_nameservers[i]; i++)
- servers[i].addr.addrV4.s_addr = htonl(def_nameservers[i]);
- status = ARES_EOF;
-
-#elif defined(ANDROID)
- char value[PROP_VALUE_MAX]="";
- __system_property_get("net.dns1", value);
- status = config_nameserver(&servers, &nservers, value);
- if (status == ARES_SUCCESS)
- status = ARES_EOF;
-#else
- {
- char *p;
- FILE *fp;
- size_t linesize;
- int error;
-
- /* Don't read resolv.conf and friends if we don't have to */
- if (ARES_CONFIG_CHECK(channel))
- return ARES_SUCCESS;
-
- fp = fopen(PATH_RESOLV_CONF, "r");
- if (fp) {
- while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
- {
- if ((p = try_config(line, "domain")))
- status = config_domain(channel, p);
- else if ((p = try_config(line, "lookup")) && !channel->lookups)
- status = config_lookup(channel, p, "bind", "file");
- else if ((p = try_config(line, "search")))
- status = set_search(channel, p);
- else if ((p = try_config(line, "nameserver")) && channel->nservers == -1)
- status = config_nameserver(&servers, &nservers, p);
- else if ((p = try_config(line, "sortlist")) && channel->nsort == -1)
- status = config_sortlist(&sortlist, &nsort, p);
- else if ((p = try_config(line, "options")))
- status = set_options(channel, p);
- else
- status = ARES_SUCCESS;
- if (status != ARES_SUCCESS)
- break;
- }
- fclose(fp);
- }
- else {
- error = ERRNO;
- switch(error) {
- case ENOENT:
- case ESRCH:
- status = ARES_EOF;
- break;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n", PATH_RESOLV_CONF));
- status = ARES_EFILE;
- }
- }
-
- if ((status == ARES_EOF) && (!channel->lookups)) {
- /* Many systems (Solaris, Linux, BSD's) use nsswitch.conf */
- fp = fopen("/etc/nsswitch.conf", "r");
- if (fp) {
- while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
- {
- if ((p = try_config(line, "hosts:")) && !channel->lookups)
- status = config_lookup(channel, p, "dns", "files");
- }
- fclose(fp);
- }
- else {
- error = ERRNO;
- switch(error) {
- case ENOENT:
- case ESRCH:
- status = ARES_EOF;
- break;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n", "/etc/nsswitch.conf"));
- status = ARES_EFILE;
- }
- }
- }
-
- if ((status == ARES_EOF) && (!channel->lookups)) {
- /* Linux / GNU libc 2.x and possibly others have host.conf */
- fp = fopen("/etc/host.conf", "r");
- if (fp) {
- while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
- {
- if ((p = try_config(line, "order")) && !channel->lookups)
- status = config_lookup(channel, p, "bind", "hosts");
- }
- fclose(fp);
- }
- else {
- error = ERRNO;
- switch(error) {
- case ENOENT:
- case ESRCH:
- status = ARES_EOF;
- break;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n", "/etc/host.conf"));
- status = ARES_EFILE;
- }
- }
- }
-
- if ((status == ARES_EOF) && (!channel->lookups)) {
- /* Tru64 uses /etc/svc.conf */
- fp = fopen("/etc/svc.conf", "r");
- if (fp) {
- while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
- {
- if ((p = try_config(line, "hosts=")) && !channel->lookups)
- status = config_lookup(channel, p, "bind", "local");
- }
- fclose(fp);
- }
- else {
- error = ERRNO;
- switch(error) {
- case ENOENT:
- case ESRCH:
- status = ARES_EOF;
- break;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n", "/etc/svc.conf"));
- status = ARES_EFILE;
- }
- }
- }
-
- if(line)
- free(line);
- }
-
-#endif
-
- /* Handle errors. */
- if (status != ARES_EOF)
- {
- if (servers != NULL)
- free(servers);
- if (sortlist != NULL)
- free(sortlist);
- return status;
- }
-
- /* If we got any name server entries, fill them in. */
-#ifdef WIN32
-okay:
-#endif
- if (servers)
- {
- channel->servers = servers;
- channel->nservers = nservers;
- }
-
- /* If we got any sortlist entries, fill them in. */
- if (sortlist)
- {
- channel->sortlist = sortlist;
- channel->nsort = nsort;
- }
-
- return ARES_SUCCESS;
-}
-
-static int init_by_defaults(ares_channel channel)
-{
- char *hostname = NULL;
- int rc = ARES_SUCCESS;
-#ifdef HAVE_GETHOSTNAME
- char *dot;
-#endif
-
- if (channel->flags == -1)
- channel->flags = 0;
- if (channel->timeout == -1)
- channel->timeout = DEFAULT_TIMEOUT;
- if (channel->tries == -1)
- channel->tries = DEFAULT_TRIES;
- if (channel->ndots == -1)
- channel->ndots = 1;
- if (channel->rotate == -1)
- channel->rotate = 0;
- if (channel->udp_port == -1)
- channel->udp_port = htons(NAMESERVER_PORT);
- if (channel->tcp_port == -1)
- channel->tcp_port = htons(NAMESERVER_PORT);
-
- if (channel->nservers == -1) {
- /* If nobody specified servers, try a local named. */
- channel->servers = malloc(sizeof(struct server_state));
- if (!channel->servers) {
- rc = ARES_ENOMEM;
- goto error;
- }
- channel->servers[0].addr.family = AF_INET;
- channel->servers[0].addr.addrV4.s_addr = htonl(INADDR_LOOPBACK);
- channel->nservers = 1;
- }
-
-#ifdef ENAMETOOLONG
-#define toolong(x) (x == -1) && ((ENAMETOOLONG == errno) || (EINVAL == errno))
-#else
-#define toolong(x) (x == -1) && (EINVAL == errno)
-#endif
-
- if (channel->ndomains == -1) {
- /* Derive a default domain search list from the kernel hostname,
- * or set it to empty if the hostname isn't helpful.
- */
- size_t len = 64;
- int res;
- channel->ndomains = 0; /* default to none */
-
-#ifdef HAVE_GETHOSTNAME
- hostname = malloc(len);
- if(!hostname) {
- rc = ARES_ENOMEM;
- goto error;
- }
-
- do {
- res = gethostname(hostname, len);
-
- if(toolong(res)) {
- char *p;
- len *= 2;
- p = realloc(hostname, len);
- if(!p) {
- rc = ARES_ENOMEM;
- goto error;
- }
- hostname = p;
- continue;
- }
- else if(res) {
- rc = ARES_EBADNAME;
- goto error;
- }
-
- } while(0);
-
- dot = strchr(hostname, '.');
- if (dot) {
- /* a dot was found */
- channel->domains = malloc(sizeof(char *));
- if (!channel->domains) {
- rc = ARES_ENOMEM;
- goto error;
- }
- channel->domains[0] = strdup(dot + 1);
- if (!channel->domains[0]) {
- rc = ARES_ENOMEM;
- goto error;
- }
- channel->ndomains = 1;
- }
-#endif
- }
-
- if (channel->nsort == -1) {
- channel->sortlist = NULL;
- channel->nsort = 0;
- }
-
- if (!channel->lookups) {
- channel->lookups = strdup("fb");
- if (!channel->lookups)
- rc = ARES_ENOMEM;
- }
-
- error:
- if(rc) {
- if(channel->servers)
- free(channel->servers);
-
- if(channel->domains && channel->domains[0])
- free(channel->domains[0]);
- if(channel->domains)
- free(channel->domains);
- if(channel->lookups)
- free(channel->lookups);
- }
-
- if(hostname)
- free(hostname);
-
- return rc;
-}
-
-#if !defined(WIN32) && !defined(WATT32)
-static int config_domain(ares_channel channel, char *str)
-{
- char *q;
-
- /* Set a single search domain. */
- q = str;
- while (*q && !ISSPACE(*q))
- q++;
- *q = '\0';
- return set_search(channel, str);
-}
-
-#if defined(__INTEL_COMPILER) && (__INTEL_COMPILER == 910) && \
- defined(__OPTIMIZE__) && defined(__unix__) && defined(__i386__)
- /* workaround icc 9.1 optimizer issue */
-# define vqualifier volatile
-#else
-# define vqualifier
-#endif
-
-static int config_lookup(ares_channel channel, const char *str,
- const char *bindch, const char *filech)
-{
- char lookups[3], *l;
- const char *vqualifier p;
-
- /* Set the lookup order. Only the first letter of each work
- * is relevant, and it has to be "b" for DNS or "f" for the
- * host file. Ignore everything else.
- */
- l = lookups;
- p = str;
- while (*p)
- {
- if ((*p == *bindch || *p == *filech) && l < lookups + 2) {
- if (*p == *bindch) *l++ = 'b';
- else *l++ = 'f';
- }
- while (*p && !ISSPACE(*p) && (*p != ','))
- p++;
- while (*p && (ISSPACE(*p) || (*p == ',')))
- p++;
- }
- *l = '\0';
- channel->lookups = strdup(lookups);
- return (channel->lookups) ? ARES_SUCCESS : ARES_ENOMEM;
-}
-#endif /* !WIN32 & !WATT32 */
-
-#ifndef WATT32
-static int config_nameserver(struct server_state **servers, int *nservers,
- char *str)
-{
- struct ares_addr host;
- struct server_state *newserv;
- char *p, *txtaddr;
- /* On Windows, there may be more than one nameserver specified in the same
- * registry key, so we parse input as a space or comma seperated list.
- */
- for (p = str; p;)
- {
- /* Skip whitespace and commas. */
- while (*p && (ISSPACE(*p) || (*p == ',')))
- p++;
- if (!*p)
- /* No more input, done. */
- break;
-
- /* Pointer to start of IPv4 or IPv6 address part. */
- txtaddr = p;
-
- /* Advance past this address. */
- while (*p && !ISSPACE(*p) && (*p != ','))
- p++;
- if (*p)
- /* Null terminate this address. */
- *p++ = '\0';
- else
- /* Reached end of input, done when this address is processed. */
- p = NULL;
-
- /* Convert textual address to binary format. */
- if (ares_inet_pton(AF_INET, txtaddr, &host.addrV4) == 1)
- host.family = AF_INET;
- else if (ares_inet_pton(AF_INET6, txtaddr, &host.addrV6) == 1)
- host.family = AF_INET6;
- else
- continue;
-
- /* Resize servers state array. */
- newserv = realloc(*servers, (*nservers + 1) *
- sizeof(struct server_state));
- if (!newserv)
- return ARES_ENOMEM;
-
- /* Store address data. */
- newserv[*nservers].addr.family = host.family;
- if (host.family == AF_INET)
- memcpy(&newserv[*nservers].addr.addrV4, &host.addrV4,
- sizeof(host.addrV4));
- else
- memcpy(&newserv[*nservers].addr.addrV6, &host.addrV6,
- sizeof(host.addrV6));
-
- /* Update arguments. */
- *servers = newserv;
- *nservers += 1;
- }
-
- return ARES_SUCCESS;
-}
-
-#ifndef WIN32
-static int config_sortlist(struct apattern **sortlist, int *nsort,
- const char *str)
-{
- struct apattern pat;
- const char *q;
-
- /* Add sortlist entries. */
- while (*str && *str != ';')
- {
- int bits;
- char ipbuf[16], ipbufpfx[32];
- /* Find just the IP */
- q = str;
- while (*q && *q != '/' && *q != ';' && !ISSPACE(*q))
- q++;
- memcpy(ipbuf, str, q-str);
- ipbuf[q-str] = '\0';
- /* Find the prefix */
- if (*q == '/')
- {
- const char *str2 = q+1;
- while (*q && *q != ';' && !ISSPACE(*q))
- q++;
- memcpy(ipbufpfx, str, q-str);
- ipbufpfx[q-str] = '\0';
- str = str2;
- }
- else
- ipbufpfx[0] = '\0';
- /* Lets see if it is CIDR */
- /* First we'll try IPv6 */
- if ((bits = ares_inet_net_pton(AF_INET6, ipbufpfx[0] ? ipbufpfx : ipbuf,
- &pat.addrV6,
- sizeof(pat.addrV6))) > 0)
- {
- pat.type = PATTERN_CIDR;
- pat.mask.bits = (unsigned short)bits;
- pat.family = AF_INET6;
- if (!sortlist_alloc(sortlist, nsort, &pat))
- return ARES_ENOMEM;
- }
- if (ipbufpfx[0] &&
- (bits = ares_inet_net_pton(AF_INET, ipbufpfx, &pat.addrV4,
- sizeof(pat.addrV4))) > 0)
- {
- pat.type = PATTERN_CIDR;
- pat.mask.bits = (unsigned short)bits;
- pat.family = AF_INET;
- if (!sortlist_alloc(sortlist, nsort, &pat))
- return ARES_ENOMEM;
- }
- /* See if it is just a regular IP */
- else if (ip_addr(ipbuf, q-str, &pat.addrV4) == 0)
- {
- if (ipbufpfx[0])
- {
- memcpy(ipbuf, str, q-str);
- ipbuf[q-str] = '\0';
- if (ip_addr(ipbuf, q-str, &pat.mask.addr4) != 0)
- natural_mask(&pat);
- }
- else
- natural_mask(&pat);
- pat.family = AF_INET;
- pat.type = PATTERN_MASK;
- if (!sortlist_alloc(sortlist, nsort, &pat))
- return ARES_ENOMEM;
- }
- else
- {
- while (*q && *q != ';' && !ISSPACE(*q))
- q++;
- }
- str = q;
- while (ISSPACE(*str))
- str++;
- }
-
- return ARES_SUCCESS;
-}
-#endif /* !WIN32 */
-#endif /* !WATT32 */
-
-static int set_search(ares_channel channel, const char *str)
-{
- int n;
- const char *p, *q;
-
- if(channel->ndomains != -1) {
- /* if we already have some domains present, free them first */
- for(n=0; n < channel->ndomains; n++)
- free(channel->domains[n]);
- free(channel->domains);
- channel->domains = NULL;
- channel->ndomains = -1;
- }
-
- /* Count the domains given. */
- n = 0;
- p = str;
- while (*p)
- {
- while (*p && !ISSPACE(*p))
- p++;
- while (ISSPACE(*p))
- p++;
- n++;
- }
-
- if (!n)
- {
- channel->ndomains = 0;
- return ARES_SUCCESS;
- }
-
- channel->domains = malloc(n * sizeof(char *));
- if (!channel->domains)
- return ARES_ENOMEM;
-
- /* Now copy the domains. */
- n = 0;
- p = str;
- while (*p)
- {
- channel->ndomains = n;
- q = p;
- while (*q && !ISSPACE(*q))
- q++;
- channel->domains[n] = malloc(q - p + 1);
- if (!channel->domains[n])
- return ARES_ENOMEM;
- memcpy(channel->domains[n], p, q - p);
- channel->domains[n][q - p] = 0;
- p = q;
- while (ISSPACE(*p))
- p++;
- n++;
- }
- channel->ndomains = n;
-
- return ARES_SUCCESS;
-}
-
-static int set_options(ares_channel channel, const char *str)
-{
- const char *p, *q, *val;
-
- p = str;
- while (*p)
- {
- q = p;
- while (*q && !ISSPACE(*q))
- q++;
- val = try_option(p, q, "ndots:");
- if (val && channel->ndots == -1)
- channel->ndots = aresx_sltosi(strtol(val, NULL, 10));
- val = try_option(p, q, "retrans:");
- if (val && channel->timeout == -1)
- channel->timeout = aresx_sltosi(strtol(val, NULL, 10));
- val = try_option(p, q, "retry:");
- if (val && channel->tries == -1)
- channel->tries = aresx_sltosi(strtol(val, NULL, 10));
- val = try_option(p, q, "rotate");
- if (val && channel->rotate == -1)
- channel->rotate = 1;
- p = q;
- while (ISSPACE(*p))
- p++;
- }
-
- return ARES_SUCCESS;
-}
-
-static const char *try_option(const char *p, const char *q, const char *opt)
-{
- size_t len = strlen(opt);
- return ((size_t)(q - p) >= len && !strncmp(p, opt, len)) ? &p[len] : NULL;
-}
-
-#if !defined(WIN32) && !defined(WATT32)
-static char *try_config(char *s, const char *opt)
-{
- size_t len;
- char *p;
- char *q;
-
- if (!s || !opt)
- /* no line or no option */
- return NULL;
-
- /* trim line comment */
- p = s;
- while (*p && (*p != '#'))
- p++;
- *p = '\0';
-
- /* trim trailing whitespace */
- q = p - 1;
- while ((q >= s) && ISSPACE(*q))
- q--;
- *++q = '\0';
-
- /* skip leading whitespace */
- p = s;
- while (*p && ISSPACE(*p))
- p++;
-
- if (!*p)
- /* empty line */
- return NULL;
-
- if ((len = strlen(opt)) == 0)
- /* empty option */
- return NULL;
-
- if (strncmp(p, opt, len) != 0)
- /* line and option do not match */
- return NULL;
-
- /* skip over given option name */
- p += len;
-
- if (!*p)
- /* no option value */
- return NULL;
-
- if ((opt[len-1] != ':') && (opt[len-1] != '=') && !ISSPACE(*p))
- /* whitespace between option name and value is mandatory
- for given option names which do not end with ':' or '=' */
- return NULL;
-
- /* skip over whitespace */
- while (*p && ISSPACE(*p))
- p++;
-
- if (!*p)
- /* no option value */
- return NULL;
-
- /* return pointer to option value */
- return p;
-}
-
-static int sortlist_alloc(struct apattern **sortlist, int *nsort,
- struct apattern *pat)
-{
- struct apattern *newsort;
- newsort = realloc(*sortlist, (*nsort + 1) * sizeof(struct apattern));
- if (!newsort)
- return 0;
- newsort[*nsort] = *pat;
- *sortlist = newsort;
- (*nsort)++;
- return 1;
-}
-
-static int ip_addr(const char *ipbuf, ssize_t len, struct in_addr *addr)
-{
-
- /* Four octets and three periods yields at most 15 characters. */
- if (len > 15)
- return -1;
-
- addr->s_addr = inet_addr(ipbuf);
- if (addr->s_addr == INADDR_NONE && strcmp(ipbuf, "255.255.255.255") != 0)
- return -1;
- return 0;
-}
-
-static void natural_mask(struct apattern *pat)
-{
- struct in_addr addr;
-
- /* Store a host-byte-order copy of pat in a struct in_addr. Icky,
- * but portable.
- */
- addr.s_addr = ntohl(pat->addrV4.s_addr);
-
- /* This is out of date in the CIDR world, but some people might
- * still rely on it.
- */
- if (IN_CLASSA(addr.s_addr))
- pat->mask.addr4.s_addr = htonl(IN_CLASSA_NET);
- else if (IN_CLASSB(addr.s_addr))
- pat->mask.addr4.s_addr = htonl(IN_CLASSB_NET);
- else
- pat->mask.addr4.s_addr = htonl(IN_CLASSC_NET);
-}
-#endif /* !WIN32 && !WATT32 */
-
-/* initialize an rc4 key. If possible a cryptographically secure random key
- is generated using a suitable function (for example win32's RtlGenRandom as
- described in
- http://blogs.msdn.com/michael_howard/archive/2005/01/14/353379.aspx
- otherwise the code defaults to cross-platform albeit less secure mechanism
- using rand
-*/
-static void randomize_key(unsigned char* key,int key_data_len)
-{
- int randomized = 0;
- int counter=0;
-#ifdef WIN32
- BOOLEAN res;
- if (ares_fpSystemFunction036)
- {
- res = (*ares_fpSystemFunction036) (key, key_data_len);
- if (res)
- randomized = 1;
- }
-#else /* !WIN32 */
-#ifdef RANDOM_FILE
- FILE *f = fopen(RANDOM_FILE, "rb");
- if(f) {
- counter = aresx_uztosi(fread(key, 1, key_data_len, f));
- fclose(f);
- }
-#endif
-#endif /* WIN32 */
-
- if ( !randomized ) {
- for (;counter<key_data_len;counter++)
- key[counter]=(unsigned char)(rand() % 256);
- }
-}
-
-static int init_id_key(rc4_key* key,int key_data_len)
-{
- unsigned char index1;
- unsigned char index2;
- unsigned char* state;
- short counter;
- unsigned char *key_data_ptr = 0;
-
- key_data_ptr = calloc(1,key_data_len);
- if (!key_data_ptr)
- return ARES_ENOMEM;
-
- state = &key->state[0];
- for(counter = 0; counter < 256; counter++)
- /* unnecessary AND but it keeps some compilers happier */
- state[counter] = (unsigned char)(counter & 0xff);
- randomize_key(key->state,key_data_len);
- key->x = 0;
- key->y = 0;
- index1 = 0;
- index2 = 0;
- for(counter = 0; counter < 256; counter++)
- {
- index2 = (unsigned char)((key_data_ptr[index1] + state[counter] +
- index2) % 256);
- ARES_SWAP_BYTE(&state[counter], &state[index2]);
-
- index1 = (unsigned char)((index1 + 1) % key_data_len);
- }
- free(key_data_ptr);
- return ARES_SUCCESS;
-}
-
-unsigned short ares__generate_new_id(rc4_key* key)
-{
- unsigned short r=0;
- ares__rc4(key, (unsigned char *)&r, sizeof(r));
- return r;
-}
-
-void ares_set_local_ip4(ares_channel channel, unsigned int local_ip)
-{
- channel->local_ip4 = local_ip;
-}
-
-/* local_ip6 should be 16 bytes in length */
-void ares_set_local_ip6(ares_channel channel,
- const unsigned char* local_ip6)
-{
- memcpy(&channel->local_ip6, local_ip6, sizeof(channel->local_ip6));
-}
-
-/* local_dev_name should be null terminated. */
-void ares_set_local_dev(ares_channel channel,
- const char* local_dev_name)
-{
- strncpy(channel->local_dev_name, local_dev_name,
- sizeof(channel->local_dev_name));
- channel->local_dev_name[sizeof(channel->local_dev_name) - 1] = 0;
-}
-
-
-void ares_set_socket_callback(ares_channel channel,
- ares_sock_create_callback cb,
- void *data)
-{
- channel->sock_create_cb = cb;
- channel->sock_create_cb_data = data;
-}
-
-void ares__init_servers_state(ares_channel channel)
-{
- struct server_state *server;
- int i;
-
- for (i = 0; i < channel->nservers; i++)
- {
- server = &channel->servers[i];
- server->udp_socket = ARES_SOCKET_BAD;
- server->tcp_socket = ARES_SOCKET_BAD;
- server->tcp_connection_generation = ++channel->tcp_connection_generation;
- server->tcp_lenbuf_pos = 0;
- server->tcp_buffer_pos = 0;
- server->tcp_buffer = NULL;
- server->tcp_length = 0;
- server->qhead = NULL;
- server->qtail = NULL;
- ares__init_list_head(&server->queries_to_server);
- server->channel = channel;
- server->is_broken = 0;
- }
-}
+++ /dev/null
-
-/* Copyright (C) 2005 by Dominick Meglio
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#ifndef ARES_IPV6_H
-#define ARES_IPV6_H
-
-#ifndef HAVE_PF_INET6
-#define PF_INET6 AF_INET6
-#endif
-
-#ifndef HAVE_STRUCT_SOCKADDR_IN6
-struct sockaddr_in6
-{
- unsigned short sin6_family;
- unsigned short sin6_port;
- unsigned long sin6_flowinfo;
- struct ares_in6_addr sin6_addr;
- unsigned int sin6_scope_id;
-};
-#endif
-
-#ifndef HAVE_STRUCT_ADDRINFO
-struct addrinfo
-{
- int ai_flags;
- int ai_family;
- int ai_socktype;
- int ai_protocol;
- ares_socklen_t ai_addrlen; /* Follow rfc3493 struct addrinfo */
- char *ai_canonname;
- struct sockaddr *ai_addr;
- struct addrinfo *ai_next;
-};
-#endif
-
-#ifndef NS_IN6ADDRSZ
-#if SIZEOF_STRUCT_IN6_ADDR == 0
-/* We cannot have it set to zero, so we pick a fixed value here */
-#define NS_IN6ADDRSZ 16
-#else
-#define NS_IN6ADDRSZ SIZEOF_STRUCT_IN6_ADDR
-#endif
-#endif
-
-#ifndef NS_INADDRSZ
-#define NS_INADDRSZ SIZEOF_STRUCT_IN_ADDR
-#endif
-
-#ifndef NS_INT16SZ
-#define NS_INT16SZ 2
-#endif
-
-#ifndef IF_NAMESIZE
-#ifdef IFNAMSIZ
-#define IF_NAMESIZE IFNAMSIZ
-#else
-#define IF_NAMESIZE 256
-#endif
-#endif
-
-/* Defined in ares_net_pton.c for no particular reason. */
-extern const struct ares_in6_addr ares_in6addr_any; /* :: */
-
-
-#endif /* ARES_IPV6_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2004-2009 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#include "ares.h"
-#include "ares_library_init.h"
-#include "ares_private.h"
-
-/* library-private global and unique instance vars */
-
-#ifdef USE_WINSOCK
-fpGetNetworkParams_t ares_fpGetNetworkParams = ZERO_NULL;
-fpSystemFunction036_t ares_fpSystemFunction036 = ZERO_NULL;
-#endif
-
-/* library-private global vars with source visibility restricted to this file */
-
-static unsigned int ares_initialized;
-static int ares_init_flags;
-
-#ifdef USE_WINSOCK
-static HMODULE hnd_iphlpapi;
-static HMODULE hnd_advapi32;
-#endif
-
-
-static int ares_win32_init(void)
-{
-#ifdef USE_WINSOCK
-
- hnd_iphlpapi = 0;
- hnd_iphlpapi = LoadLibrary("iphlpapi.dll");
- if (!hnd_iphlpapi)
- return ARES_ELOADIPHLPAPI;
-
- ares_fpGetNetworkParams = (fpGetNetworkParams_t)
- GetProcAddress(hnd_iphlpapi, "GetNetworkParams");
- if (!ares_fpGetNetworkParams)
- {
- FreeLibrary(hnd_iphlpapi);
- return ARES_EADDRGETNETWORKPARAMS;
- }
-
- /*
- * When advapi32.dll is unavailable or advapi32.dll has no SystemFunction036,
- * also known as RtlGenRandom, which is the case for Windows versions prior
- * to WinXP then c-ares uses portable rand() function. Then don't error here.
- */
-
- hnd_advapi32 = 0;
- hnd_advapi32 = LoadLibrary("advapi32.dll");
- if (hnd_advapi32)
- {
- ares_fpSystemFunction036 = (fpSystemFunction036_t)
- GetProcAddress(hnd_advapi32, "SystemFunction036");
- }
-
-#endif
- return ARES_SUCCESS;
-}
-
-
-static void ares_win32_cleanup(void)
-{
-#ifdef USE_WINSOCK
- if (hnd_advapi32)
- FreeLibrary(hnd_advapi32);
- if (hnd_iphlpapi)
- FreeLibrary(hnd_iphlpapi);
-#endif
-}
-
-
-int ares_library_init(int flags)
-{
- int res;
-
- if (ares_initialized)
- return ARES_SUCCESS;
- ares_initialized++;
-
- if (flags & ARES_LIB_INIT_WIN32)
- {
- res = ares_win32_init();
- if (res != ARES_SUCCESS)
- return res;
- }
-
- ares_init_flags = flags;
-
- return ARES_SUCCESS;
-}
-
-
-void ares_library_cleanup(void)
-{
- if (!ares_initialized)
- return;
- ares_initialized--;
-
- if (ares_init_flags & ARES_LIB_INIT_WIN32)
- ares_win32_cleanup();
-
- ares_init_flags = ARES_LIB_INIT_NONE;
-}
-
-
-int ares_library_initialized(void)
-{
-#ifdef USE_WINSOCK
- if (!ares_initialized)
- return ARES_ENOTINITIALIZED;
-#endif
- return ARES_SUCCESS;
-}
-
-
+++ /dev/null
-#ifndef HEADER_CARES_LIBRARY_INIT_H
-#define HEADER_CARES_LIBRARY_INIT_H
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2004-2009 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef USE_WINSOCK
-
-#include <iphlpapi.h>
-
-typedef DWORD (WINAPI *fpGetNetworkParams_t) (FIXED_INFO*, DWORD*);
-typedef BOOLEAN (APIENTRY *fpSystemFunction036_t) (void*, ULONG);
-
-/* Forward-declaration of variables defined in ares_library_init.c */
-/* that are global and unique instances for whole c-ares library. */
-
-extern fpGetNetworkParams_t ares_fpGetNetworkParams;
-extern fpSystemFunction036_t ares_fpSystemFunction036;
-
-#endif /* USE_WINSOCK */
-
-#endif /* HEADER_CARES_LIBRARY_INIT_H */
-
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#include "ares.h"
-#include "ares_private.h"
-
-/* Routines for managing doubly-linked circular linked lists with a
- * dummy head.
- */
-
-/* Initialize a new head node */
-void ares__init_list_head(struct list_node* head) {
- head->prev = head;
- head->next = head;
- head->data = NULL;
-}
-
-/* Initialize a list node */
-void ares__init_list_node(struct list_node* node, void* d) {
- node->prev = NULL;
- node->next = NULL;
- node->data = d;
-}
-
-/* Returns true iff the given list is empty */
-int ares__is_list_empty(struct list_node* head) {
- return ((head->next == head) && (head->prev == head));
-}
-
-/* Inserts new_node before old_node */
-void ares__insert_in_list(struct list_node* new_node,
- struct list_node* old_node) {
- new_node->next = old_node;
- new_node->prev = old_node->prev;
- old_node->prev->next = new_node;
- old_node->prev = new_node;
-}
-
-/* Removes the node from the list it's in, if any */
-void ares__remove_from_list(struct list_node* node) {
- if (node->next != NULL) {
- node->prev->next = node->next;
- node->next->prev = node->prev;
- node->prev = NULL;
- node->next = NULL;
- }
-}
-
-/* Swap the contents of two lists */
-void ares__swap_lists(struct list_node* head_a,
- struct list_node* head_b) {
- int is_a_empty = ares__is_list_empty(head_a);
- int is_b_empty = ares__is_list_empty(head_b);
- struct list_node old_a = *head_a;
- struct list_node old_b = *head_b;
-
- if (is_a_empty) {
- ares__init_list_head(head_b);
- } else {
- *head_b = old_a;
- old_a.next->prev = head_b;
- old_a.prev->next = head_b;
- }
- if (is_b_empty) {
- ares__init_list_head(head_a);
- } else {
- *head_a = old_b;
- old_b.next->prev = head_a;
- old_b.prev->next = head_a;
- }
-}
+++ /dev/null
-#ifndef __ARES_LLIST_H
-#define __ARES_LLIST_H
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-
-/* Node definition for circular, doubly-linked list */
-struct list_node {
- struct list_node *prev;
- struct list_node *next;
- void* data;
-};
-
-void ares__init_list_head(struct list_node* head);
-
-void ares__init_list_node(struct list_node* node, void* d);
-
-int ares__is_list_empty(struct list_node* head);
-
-void ares__insert_in_list(struct list_node* new_node,
- struct list_node* old_node);
-
-void ares__remove_from_list(struct list_node* node);
-
-void ares__swap_lists(struct list_node* head_a,
- struct list_node* head_b);
-
-#endif /* __ARES_LLIST_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-/* Header format, from RFC 1035:
- * 1 1 1 1 1 1
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | ID |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * |QR| Opcode |AA|TC|RD|RA| Z | RCODE |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | QDCOUNT |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | ANCOUNT |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | NSCOUNT |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | ARCOUNT |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *
- * AA, TC, RA, and RCODE are only set in responses. Brief description
- * of the remaining fields:
- * ID Identifier to match responses with queries
- * QR Query (0) or response (1)
- * Opcode For our purposes, always QUERY
- * RD Recursion desired
- * Z Reserved (zero)
- * QDCOUNT Number of queries
- * ANCOUNT Number of answers
- * NSCOUNT Number of name server records
- * ARCOUNT Number of additional records
- *
- * Question format, from RFC 1035:
- * 1 1 1 1 1 1
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | |
- * / QNAME /
- * / /
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | QTYPE |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- * | QCLASS |
- * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *
- * The query name is encoded as a series of labels, each represented
- * as a one-byte length (maximum 63) followed by the text of the
- * label. The list is terminated by a label of length zero (which can
- * be thought of as the root domain).
- */
-
-int ares_mkquery(const char *name, int dnsclass, int type, unsigned short id,
- int rd, unsigned char **buf, int *buflen)
-{
- int len;
- unsigned char *q;
- const char *p;
-
- /* Set our results early, in case we bail out early with an error. */
- *buflen = 0;
- *buf = NULL;
-
- /* Compute the length of the encoded name so we can check buflen.
- * Start counting at 1 for the zero-length label at the end. */
- len = 1;
- for (p = name; *p; p++)
- {
- if (*p == '\\' && *(p + 1) != 0)
- p++;
- len++;
- }
- /* If there are n periods in the name, there are n + 1 labels, and
- * thus n + 1 length fields, unless the name is empty or ends with a
- * period. So add 1 unless name is empty or ends with a period.
- */
- if (*name && *(p - 1) != '.')
- len++;
-
- /* Immediately reject names that are longer than the maximum of 255
- * bytes that's specified in RFC 1035 ("To simplify implementations,
- * the total length of a domain name (i.e., label octets and label
- * length octets) is restricted to 255 octets or less."). We aren't
- * doing this just to be a stickler about RFCs. For names that are
- * too long, 'dnscache' closes its TCP connection to us immediately
- * (when using TCP) and ignores the request when using UDP, and
- * BIND's named returns ServFail (TCP or UDP). Sending a request
- * that we know will cause 'dnscache' to close the TCP connection is
- * painful, since that makes any other outstanding requests on that
- * connection fail. And sending a UDP request that we know
- * 'dnscache' will ignore is bad because resources will be tied up
- * until we time-out the request.
- */
- if (len > MAXCDNAME)
- return ARES_EBADNAME;
-
- *buflen = len + HFIXEDSZ + QFIXEDSZ;
- *buf = malloc(*buflen);
- if (!*buf)
- return ARES_ENOMEM;
-
- /* Set up the header. */
- q = *buf;
- memset(q, 0, HFIXEDSZ);
- DNS_HEADER_SET_QID(q, id);
- DNS_HEADER_SET_OPCODE(q, QUERY);
- if (rd) {
- DNS_HEADER_SET_RD(q, 1);
- }
- else {
- DNS_HEADER_SET_RD(q, 0);
- }
- DNS_HEADER_SET_QDCOUNT(q, 1);
-
- /* A name of "." is a screw case for the loop below, so adjust it. */
- if (strcmp(name, ".") == 0)
- name++;
-
- /* Start writing out the name after the header. */
- q += HFIXEDSZ;
- while (*name)
- {
- if (*name == '.')
- return ARES_EBADNAME;
-
- /* Count the number of bytes in this label. */
- len = 0;
- for (p = name; *p && *p != '.'; p++)
- {
- if (*p == '\\' && *(p + 1) != 0)
- p++;
- len++;
- }
- if (len > MAXLABEL)
- return ARES_EBADNAME;
-
- /* Encode the length and copy the data. */
- *q++ = (unsigned char)len;
- for (p = name; *p && *p != '.'; p++)
- {
- if (*p == '\\' && *(p + 1) != 0)
- p++;
- *q++ = *p;
- }
-
- /* Go to the next label and repeat, unless we hit the end. */
- if (!*p)
- break;
- name = p + 1;
- }
-
- /* Add the zero-length label at the end. */
- *q++ = 0;
-
- /* Finish off the question with the type and class. */
- DNS_QUESTION_SET_TYPE(q, type);
- DNS_QUESTION_SET_CLASS(q, dnsclass);
-
- return ARES_SUCCESS;
-}
+++ /dev/null
-
-/* Copyright (C) 2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-
-#include "ares_setup.h"
-
-#include "ares_nowarn.h"
-
-#define CARES_MASK_UINT (~(unsigned int) 0)
-#define CARES_MASK_SINT (CARES_MASK_UINT >> 1)
-
-/*
-** size_t to signed int
-*/
-
-int aresx_uztosi(size_t uznum)
-{
-#ifdef __INTEL_COMPILER
-# pragma warning(push)
-# pragma warning(disable:810) /* conversion may lose significant bits */
-#endif
-
- return (int)(uznum & (size_t) CARES_MASK_SINT);
-
-#ifdef __INTEL_COMPILER
-# pragma warning(pop)
-#endif
-}
-
-/*
-** signed long to signed int
-*/
-
-int aresx_sltosi(long slnum)
-{
-#ifdef __INTEL_COMPILER
-# pragma warning(push)
-# pragma warning(disable:810) /* conversion may lose significant bits */
-#endif
-
- return (int)(slnum & (long) CARES_MASK_SINT);
-
-#ifdef __INTEL_COMPILER
-# pragma warning(pop)
-#endif
-}
+++ /dev/null
-#ifndef HEADER_CARES_NOWARN_H
-#define HEADER_CARES_NOWARN_H
-
-
-/* Copyright (C) 2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-int aresx_uztosi(size_t uznum);
-
-int aresx_sltosi(long slnum);
-
-#endif /* HEADER_CARES_NOWARN_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2008-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-
-#include "ares_setup.h"
-
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-
-#include "ares.h"
-#include "ares_data.h"
-#include "inet_net_pton.h"
-#include "ares_private.h"
-
-
-int ares_get_servers(ares_channel channel,
- struct ares_addr_node **servers)
-{
- struct ares_addr_node *srvr_head = NULL;
- struct ares_addr_node *srvr_last = NULL;
- struct ares_addr_node *srvr_curr;
- int status = ARES_SUCCESS;
- int i;
-
- if (!channel)
- return ARES_ENODATA;
-
- for (i = 0; i < channel->nservers; i++)
- {
- /* Allocate storage for this server node appending it to the list */
- srvr_curr = ares_malloc_data(ARES_DATATYPE_ADDR_NODE);
- if (!srvr_curr)
- {
- status = ARES_ENOMEM;
- break;
- }
- if (srvr_last)
- {
- srvr_last->next = srvr_curr;
- }
- else
- {
- srvr_head = srvr_curr;
- }
- srvr_last = srvr_curr;
-
- /* Fill this server node data */
- srvr_curr->family = channel->servers[i].addr.family;
- if (srvr_curr->family == AF_INET)
- memcpy(&srvr_curr->addrV4, &channel->servers[i].addr.addrV4,
- sizeof(srvr_curr->addrV4));
- else
- memcpy(&srvr_curr->addrV6, &channel->servers[i].addr.addrV6,
- sizeof(srvr_curr->addrV6));
- }
-
- if (status != ARES_SUCCESS)
- {
- if (srvr_head)
- {
- ares_free_data(srvr_head);
- srvr_head = NULL;
- }
- }
-
- *servers = srvr_head;
-
- return status;
-}
-
-
-int ares_set_servers(ares_channel channel,
- struct ares_addr_node *servers)
-{
- struct ares_addr_node *srvr;
- int num_srvrs = 0;
- int i;
-
- if (ares_library_initialized() != ARES_SUCCESS)
- return ARES_ENOTINITIALIZED;
-
- if (!channel)
- return ARES_ENODATA;
-
- ares__destroy_servers_state(channel);
-
- for (srvr = servers; srvr; srvr = srvr->next)
- {
- num_srvrs++;
- }
-
- if (num_srvrs > 0)
- {
- /* Allocate storage for servers state */
- channel->servers = malloc(num_srvrs * sizeof(struct server_state));
- if (!channel->servers)
- {
- return ARES_ENOMEM;
- }
- channel->nservers = num_srvrs;
- /* Fill servers state address data */
- for (i = 0, srvr = servers; srvr; i++, srvr = srvr->next)
- {
- channel->servers[i].addr.family = srvr->family;
- if (srvr->family == AF_INET)
- memcpy(&channel->servers[i].addr.addrV4, &srvr->addrV4,
- sizeof(srvr->addrV4));
- else
- memcpy(&channel->servers[i].addr.addrV6, &srvr->addrV6,
- sizeof(srvr->addrV6));
- }
- /* Initialize servers state remaining data */
- ares__init_servers_state(channel);
- }
-
- return ARES_SUCCESS;
-}
-
-/* Incomming string format: host[:port][,host[:port]]... */
-int ares_set_servers_csv(ares_channel channel,
- const char* _csv)
-{
- int i;
- char* csv = NULL;
- char* ptr;
- char* start_host;
- long port;
- bool found_port;
- int rv = ARES_SUCCESS;
- struct ares_addr_node *servers = NULL;
- struct ares_addr_node *last = NULL;
-
- if (ares_library_initialized() != ARES_SUCCESS)
- return ARES_ENOTINITIALIZED;
-
- if (!channel)
- return ARES_ENODATA;
-
- ares__destroy_servers_state(channel);
-
- i = strlen(_csv);
- if (i == 0)
- return ARES_SUCCESS; /* blank all servers */
-
- csv = malloc(i + 2);
- strcpy(csv, _csv);
- if (csv[i-1] != ',') { /* make parsing easier by ensuring ending ',' */
- csv[i] = ',';
- csv[i+1] = 0;
- }
-
- start_host = csv;
- found_port = false;
- for (ptr = csv; *ptr; ptr++) {
- if (*ptr == ',') {
- char* pp = ptr - 1;
- struct in_addr in4;
- struct ares_in6_addr in6;
- struct ares_addr_node *s = NULL;
-
- *ptr = 0; /* null terminate host:port string */
- /* Got an entry..see if port was specified. */
- while (pp > start_host) {
- if (*pp == ':')
- break; /* yes */
- if (!ISDIGIT(*pp)) {
- /* Found end of digits before we found :, so wasn't a port */
- pp = ptr;
- break;
- }
- pp--;
- }
- if ((pp != start_host) && ((pp + 1) < ptr)) {
- /* Found it. */
- found_port = true;
- port = strtol(pp + 1, NULL, 10);
- *pp = 0; /* null terminate host */
- }
- /* resolve host, try ipv4 first, rslt is in network byte order */
- rv = ares_inet_pton(AF_INET, start_host, &in4);
- if (!rv) {
- /* Ok, try IPv6 then */
- rv = ares_inet_pton(AF_INET6, start_host, &in6);
- if (!rv) {
- rv = ARES_EBADSTR;
- goto out;
- }
- /* was ipv6, add new server */
- s = malloc(sizeof(*s));
- if (!s) {
- rv = ARES_ENOMEM;
- goto out;
- }
- s->family = AF_INET6;
- memcpy(&s->addr, &in6, sizeof(struct ares_in6_addr));
- }
- else {
- /* was ipv4, add new server */
- s = malloc(sizeof(*s));
- if (!s) {
- rv = ARES_ENOMEM;
- goto out;
- }
- s->family = AF_INET;
- memcpy(&s->addr, &in4, sizeof(struct in_addr));
- }
- if (s) {
- /* TODO: Add port to ares_addr_node and assign it here. */
-
- s->next = NULL;
- if (last) {
- last->next = s;
- }
- else {
- servers = s;
- last = s;
- }
- }
-
- /* Set up for next one */
- found_port = false;
- start_host = ptr + 1;
- }
- }
-
- rv = ares_set_servers(channel, servers);
-
- out:
- if (csv)
- free(csv);
- while (servers) {
- struct ares_addr_node *s = servers;
- servers = servers->next;
- free(s);
- }
-
- return rv;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-int ares_parse_a_reply(const unsigned char *abuf, int alen,
- struct hostent **host,
- struct ares_addrttl *addrttls, int *naddrttls)
-{
- unsigned int qdcount, ancount;
- int status, i, rr_type, rr_class, rr_len, rr_ttl, naddrs;
- int cname_ttl = INT_MAX; /* the TTL imposed by the CNAME chain */
- int naliases;
- long len;
- const unsigned char *aptr;
- char *hostname, *rr_name, *rr_data, **aliases;
- struct in_addr *addrs;
- struct hostent *hostent;
- const int max_addr_ttls = (addrttls && naddrttls) ? *naddrttls : 0;
-
- /* Set *host to NULL for all failure cases. */
- if (host)
- *host = NULL;
- /* Same with *naddrttls. */
- if (naddrttls)
- *naddrttls = 0;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT(abuf);
- ancount = DNS_HEADER_ANCOUNT(abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares__expand_name_for_response(aptr, abuf, alen, &hostname, &len);
- if (status != ARES_SUCCESS)
- return status;
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free(hostname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- if (host)
- {
- /* Allocate addresses and aliases; ancount gives an upper bound for
- both. */
- addrs = malloc(ancount * sizeof(struct in_addr));
- if (!addrs)
- {
- free(hostname);
- return ARES_ENOMEM;
- }
- aliases = malloc((ancount + 1) * sizeof(char *));
- if (!aliases)
- {
- free(hostname);
- free(addrs);
- return ARES_ENOMEM;
- }
- }
- else
- {
- addrs = NULL;
- aliases = NULL;
- }
-
- naddrs = 0;
- naliases = 0;
-
- /* Examine each answer resource record (RR) in turn. */
- for (i = 0; i < (int)ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- break;
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE(aptr);
- rr_class = DNS_RR_CLASS(aptr);
- rr_len = DNS_RR_LEN(aptr);
- rr_ttl = DNS_RR_TTL(aptr);
- aptr += RRFIXEDSZ;
-
- if (rr_class == C_IN && rr_type == T_A
- && rr_len == sizeof(struct in_addr)
- && strcasecmp(rr_name, hostname) == 0)
- {
- if (addrs)
- {
- if (aptr + sizeof(struct in_addr) > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- memcpy(&addrs[naddrs], aptr, sizeof(struct in_addr));
- }
- if (naddrs < max_addr_ttls)
- {
- struct ares_addrttl * const at = &addrttls[naddrs];
- if (aptr + sizeof(struct in_addr) > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- memcpy(&at->ipaddr, aptr, sizeof(struct in_addr));
- at->ttl = rr_ttl;
- }
- naddrs++;
- status = ARES_SUCCESS;
- }
-
- if (rr_class == C_IN && rr_type == T_CNAME)
- {
- /* Record the RR name as an alias. */
- if (aliases)
- aliases[naliases] = rr_name;
- else
- free(rr_name);
- naliases++;
-
- /* Decode the RR data and replace the hostname with it. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
- &len);
- if (status != ARES_SUCCESS)
- break;
- free(hostname);
- hostname = rr_data;
-
- /* Take the min of the TTLs we see in the CNAME chain. */
- if (cname_ttl > rr_ttl)
- cname_ttl = rr_ttl;
- }
- else
- free(rr_name);
-
- aptr += rr_len;
- if (aptr > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- }
-
- if (status == ARES_SUCCESS && naddrs == 0 && naliases == 0)
- /* the check for naliases to be zero is to make sure CNAME responses
- don't get caught here */
- status = ARES_ENODATA;
- if (status == ARES_SUCCESS)
- {
- /* We got our answer. */
- if (naddrttls)
- {
- const int n = naddrs < max_addr_ttls ? naddrs : max_addr_ttls;
- for (i = 0; i < n; i++)
- {
- /* Ensure that each A TTL is no larger than the CNAME TTL. */
- if (addrttls[i].ttl > cname_ttl)
- addrttls[i].ttl = cname_ttl;
- }
- *naddrttls = n;
- }
- if (aliases)
- aliases[naliases] = NULL;
- if (host)
- {
- /* Allocate memory to build the host entry. */
- hostent = malloc(sizeof(struct hostent));
- if (hostent)
- {
- hostent->h_addr_list = malloc((naddrs + 1) * sizeof(char *));
- if (hostent->h_addr_list)
- {
- /* Fill in the hostent and return successfully. */
- hostent->h_name = hostname;
- hostent->h_aliases = aliases;
- hostent->h_addrtype = AF_INET;
- hostent->h_length = sizeof(struct in_addr);
- for (i = 0; i < naddrs; i++)
- hostent->h_addr_list[i] = (char *) &addrs[i];
- hostent->h_addr_list[naddrs] = NULL;
- *host = hostent;
- return ARES_SUCCESS;
- }
- free(hostent);
- }
- status = ARES_ENOMEM;
- }
- }
- if (aliases)
- {
- for (i = 0; i < naliases; i++)
- free(aliases[i]);
- free(aliases);
- }
- free(addrs);
- free(hostname);
- return status;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright 2005 Dominick Meglio
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#include "ares.h"
-#include "ares_dns.h"
-#include "inet_net_pton.h"
-#include "ares_private.h"
-
-int ares_parse_aaaa_reply(const unsigned char *abuf, int alen,
- struct hostent **host, struct ares_addr6ttl *addrttls,
- int *naddrttls)
-{
- unsigned int qdcount, ancount;
- int status, i, rr_type, rr_class, rr_len, rr_ttl, naddrs;
- int cname_ttl = INT_MAX; /* the TTL imposed by the CNAME chain */
- int naliases;
- long len;
- const unsigned char *aptr;
- char *hostname, *rr_name, *rr_data, **aliases;
- struct ares_in6_addr *addrs;
- struct hostent *hostent;
- const int max_addr_ttls = (addrttls && naddrttls) ? *naddrttls : 0;
-
- /* Set *host to NULL for all failure cases. */
- if (host)
- *host = NULL;
- /* Same with *naddrttls. */
- if (naddrttls)
- *naddrttls = 0;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT(abuf);
- ancount = DNS_HEADER_ANCOUNT(abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares__expand_name_for_response(aptr, abuf, alen, &hostname, &len);
- if (status != ARES_SUCCESS)
- return status;
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free(hostname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Allocate addresses and aliases; ancount gives an upper bound for both. */
- if (host)
- {
- addrs = malloc(ancount * sizeof(struct ares_in6_addr));
- if (!addrs)
- {
- free(hostname);
- return ARES_ENOMEM;
- }
- aliases = malloc((ancount + 1) * sizeof(char *));
- if (!aliases)
- {
- free(hostname);
- free(addrs);
- return ARES_ENOMEM;
- }
- }
- else
- {
- addrs = NULL;
- aliases = NULL;
- }
- naddrs = 0;
- naliases = 0;
-
- /* Examine each answer resource record (RR) in turn. */
- for (i = 0; i < (int)ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- break;
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE(aptr);
- rr_class = DNS_RR_CLASS(aptr);
- rr_len = DNS_RR_LEN(aptr);
- rr_ttl = DNS_RR_TTL(aptr);
- aptr += RRFIXEDSZ;
-
- if (rr_class == C_IN && rr_type == T_AAAA
- && rr_len == sizeof(struct ares_in6_addr)
- && strcasecmp(rr_name, hostname) == 0)
- {
- if (addrs)
- {
- if (aptr + sizeof(struct ares_in6_addr) > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- memcpy(&addrs[naddrs], aptr, sizeof(struct ares_in6_addr));
- }
- if (naddrs < max_addr_ttls)
- {
- struct ares_addr6ttl * const at = &addrttls[naddrs];
- if (aptr + sizeof(struct ares_in6_addr) > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- memcpy(&at->ip6addr, aptr, sizeof(struct ares_in6_addr));
- at->ttl = rr_ttl;
- }
- naddrs++;
- status = ARES_SUCCESS;
- }
-
- if (rr_class == C_IN && rr_type == T_CNAME)
- {
- /* Record the RR name as an alias. */
- if (aliases)
- aliases[naliases] = rr_name;
- else
- free(rr_name);
- naliases++;
-
- /* Decode the RR data and replace the hostname with it. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
- &len);
- if (status != ARES_SUCCESS)
- break;
- free(hostname);
- hostname = rr_data;
-
- /* Take the min of the TTLs we see in the CNAME chain. */
- if (cname_ttl > rr_ttl)
- cname_ttl = rr_ttl;
- }
- else
- free(rr_name);
-
- aptr += rr_len;
- if (aptr > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- }
-
- if (status == ARES_SUCCESS && naddrs == 0)
- status = ARES_ENODATA;
- if (status == ARES_SUCCESS)
- {
- /* We got our answer. */
- if (naddrttls)
- {
- const int n = naddrs < max_addr_ttls ? naddrs : max_addr_ttls;
- for (i = 0; i < n; i++)
- {
- /* Ensure that each A TTL is no larger than the CNAME TTL. */
- if (addrttls[i].ttl > cname_ttl)
- addrttls[i].ttl = cname_ttl;
- }
- *naddrttls = n;
- }
- if (aliases)
- aliases[naliases] = NULL;
- if (host)
- {
- /* Allocate memory to build the host entry. */
- hostent = malloc(sizeof(struct hostent));
- if (hostent)
- {
- hostent->h_addr_list = malloc((naddrs + 1) * sizeof(char *));
- if (hostent->h_addr_list)
- {
- /* Fill in the hostent and return successfully. */
- hostent->h_name = hostname;
- hostent->h_aliases = aliases;
- hostent->h_addrtype = AF_INET6;
- hostent->h_length = sizeof(struct ares_in6_addr);
- for (i = 0; i < naddrs; i++)
- hostent->h_addr_list[i] = (char *) &addrs[i];
- hostent->h_addr_list[naddrs] = NULL;
- *host = hostent;
- return ARES_SUCCESS;
- }
- free(hostent);
- }
- status = ARES_ENOMEM;
- }
- }
- if (aliases)
- {
- for (i = 0; i < naliases; i++)
- free(aliases[i]);
- free(aliases);
- }
- free(addrs);
- free(hostname);
- return status;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2010 Jeremy Lal <kapouer@melix.org>
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_data.h"
-#include "ares_private.h"
-
-int
-ares_parse_mx_reply (const unsigned char *abuf, int alen,
- struct ares_mx_reply **mx_out)
-{
- unsigned int qdcount, ancount, i;
- const unsigned char *aptr, *vptr;
- int status, rr_type, rr_class, rr_len;
- long len;
- char *hostname = NULL, *rr_name = NULL;
- struct ares_mx_reply *mx_head = NULL;
- struct ares_mx_reply *mx_last = NULL;
- struct ares_mx_reply *mx_curr;
-
- /* Set *mx_out to NULL for all failure cases. */
- *mx_out = NULL;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT (abuf);
- ancount = DNS_HEADER_ANCOUNT (abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
- if (ancount == 0)
- return ARES_ENODATA;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares_expand_name (aptr, abuf, alen, &hostname, &len);
- if (status != ARES_SUCCESS)
- return status;
-
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free (hostname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Examine each answer resource record (RR) in turn. */
- for (i = 0; i < ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares_expand_name (aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- {
- break;
- }
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE (aptr);
- rr_class = DNS_RR_CLASS (aptr);
- rr_len = DNS_RR_LEN (aptr);
- aptr += RRFIXEDSZ;
-
- /* Check if we are really looking at a MX record */
- if (rr_class == C_IN && rr_type == T_MX)
- {
- /* parse the MX record itself */
- if (rr_len < 2)
- {
- status = ARES_EBADRESP;
- break;
- }
-
- /* Allocate storage for this MX answer appending it to the list */
- mx_curr = ares_malloc_data(ARES_DATATYPE_MX_REPLY);
- if (!mx_curr)
- {
- status = ARES_ENOMEM;
- break;
- }
- if (mx_last)
- {
- mx_last->next = mx_curr;
- }
- else
- {
- mx_head = mx_curr;
- }
- mx_last = mx_curr;
-
- vptr = aptr;
- mx_curr->priority = ntohs (*((unsigned short *)vptr));
- vptr += sizeof(unsigned short);
-
- status = ares_expand_name (vptr, abuf, alen, &mx_curr->host, &len);
- if (status != ARES_SUCCESS)
- break;
- }
-
- /* Don't lose memory in the next iteration */
- free (rr_name);
- rr_name = NULL;
-
- /* Move on to the next record */
- aptr += rr_len;
- }
-
- if (hostname)
- free (hostname);
- if (rr_name)
- free (rr_name);
-
- /* clean up on error */
- if (status != ARES_SUCCESS)
- {
- if (mx_head)
- ares_free_data (mx_head);
- return status;
- }
-
- /* everything looks fine, return the data */
- *mx_out = mx_head;
-
- return ARES_SUCCESS;
-}
+++ /dev/null
-/* $Id */
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-/*
- * ares_parse_ns_reply created by Vlad Dinulescu <vlad.dinulescu@avira.com>
- * on behalf of AVIRA Gmbh - http://www.avira.com
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-int ares_parse_ns_reply( const unsigned char* abuf, int alen,
- struct hostent** host )
-{
- unsigned int qdcount, ancount;
- int status, i, rr_type, rr_class, rr_len;
- int nameservers_num;
- long len;
- const unsigned char *aptr;
- char* hostname, *rr_name, *rr_data, **nameservers;
- struct hostent *hostent;
-
- /* Set *host to NULL for all failure cases. */
- *host = NULL;
-
- /* Give up if abuf doesn't have room for a header. */
- if ( alen < HFIXEDSZ )
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT( abuf );
- ancount = DNS_HEADER_ANCOUNT( abuf );
- if ( qdcount != 1 )
- return ARES_EBADRESP;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares__expand_name_for_response( aptr, abuf, alen, &hostname, &len);
- if ( status != ARES_SUCCESS )
- return status;
- if ( aptr + len + QFIXEDSZ > abuf + alen )
- {
- free( hostname );
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Allocate nameservers array; ancount gives an upper bound */
- nameservers = malloc( ( ancount + 1 ) * sizeof( char * ) );
- if ( !nameservers )
- {
- free( hostname );
- return ARES_ENOMEM;
- }
- nameservers_num = 0;
-
- /* Examine each answer resource record (RR) in turn. */
- for ( i = 0; i < ( int ) ancount; i++ )
- {
- /* Decode the RR up to the data field. */
- status = ares__expand_name_for_response( aptr, abuf, alen, &rr_name, &len );
- if ( status != ARES_SUCCESS )
- break;
- aptr += len;
- if ( aptr + RRFIXEDSZ > abuf + alen )
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE( aptr );
- rr_class = DNS_RR_CLASS( aptr );
- rr_len = DNS_RR_LEN( aptr );
- aptr += RRFIXEDSZ;
-
- if ( rr_class == C_IN && rr_type == T_NS )
- {
- /* Decode the RR data and add it to the nameservers list */
- status = ares__expand_name_for_response( aptr, abuf, alen, &rr_data,
- &len);
- if ( status != ARES_SUCCESS )
- {
- break;
- }
-
- nameservers[nameservers_num] = malloc(strlen(rr_data)+1);
-
- if (nameservers[nameservers_num]==NULL)
- {
- free(rr_name);
- free(rr_data);
- status=ARES_ENOMEM;
- break;
- }
- strcpy(nameservers[nameservers_num],rr_data);
- free(rr_data);
-
- nameservers_num++;
- }
-
- free( rr_name );
-
- aptr += rr_len;
- if ( aptr > abuf + alen )
- {
- status = ARES_EBADRESP;
- break;
- }
- }
-
- if ( status == ARES_SUCCESS && nameservers_num == 0 )
- {
- status = ARES_ENODATA;
- }
- if ( status == ARES_SUCCESS )
- {
- /* We got our answer. Allocate memory to build the host entry. */
- nameservers[nameservers_num] = NULL;
- hostent = malloc( sizeof( struct hostent ) );
- if ( hostent )
- {
- hostent->h_addr_list = malloc( 1 * sizeof( char * ) );
- if ( hostent->h_addr_list )
- {
- /* Fill in the hostent and return successfully. */
- hostent->h_name = hostname;
- hostent->h_aliases = nameservers;
- hostent->h_addrtype = AF_INET;
- hostent->h_length = sizeof( struct in_addr );
- hostent->h_addr_list[0] = NULL;
- *host = hostent;
- return ARES_SUCCESS;
- }
- free( hostent );
- }
- status = ARES_ENOMEM;
- }
- for ( i = 0; i < nameservers_num; i++ )
- free( nameservers[i] );
- free( nameservers );
- free( hostname );
- return status;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-int ares_parse_ptr_reply(const unsigned char *abuf, int alen, const void *addr,
- int addrlen, int family, struct hostent **host)
-{
- unsigned int qdcount, ancount;
- int status, i, rr_type, rr_class, rr_len;
- long len;
- const unsigned char *aptr;
- char *ptrname, *hostname, *rr_name, *rr_data;
- struct hostent *hostent;
- int aliascnt = 0;
- int alias_alloc = 8;
- char ** aliases;
-
- /* Set *host to NULL for all failure cases. */
- *host = NULL;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT(abuf);
- ancount = DNS_HEADER_ANCOUNT(abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares__expand_name_for_response(aptr, abuf, alen, &ptrname, &len);
- if (status != ARES_SUCCESS)
- return status;
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free(ptrname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Examine each answer resource record (RR) in turn. */
- hostname = NULL;
- aliases = malloc(alias_alloc * sizeof(char *));
- if (!aliases)
- {
- free(ptrname);
- return ARES_ENOMEM;
- }
- for (i = 0; i < (int)ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- break;
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE(aptr);
- rr_class = DNS_RR_CLASS(aptr);
- rr_len = DNS_RR_LEN(aptr);
- aptr += RRFIXEDSZ;
-
- if (rr_class == C_IN && rr_type == T_PTR
- && strcasecmp(rr_name, ptrname) == 0)
- {
- /* Decode the RR data and set hostname to it. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
- &len);
- if (status != ARES_SUCCESS)
- break;
- if (hostname)
- free(hostname);
- hostname = rr_data;
- aliases[aliascnt] = malloc((strlen(rr_data)+1) * sizeof(char *));
- if (!aliases[aliascnt])
- {
- status = ARES_ENOMEM;
- break;
- }
- strncpy(aliases[aliascnt], rr_data, strlen(rr_data)+1);
- aliascnt++;
- if (aliascnt >= alias_alloc) {
- char **ptr;
- alias_alloc *= 2;
- ptr = realloc(aliases, alias_alloc * sizeof(char *));
- if(!ptr) {
- status = ARES_ENOMEM;
- break;
- }
- aliases = ptr;
- }
- }
-
- if (rr_class == C_IN && rr_type == T_CNAME)
- {
- /* Decode the RR data and replace ptrname with it. */
- status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
- &len);
- if (status != ARES_SUCCESS)
- break;
- free(ptrname);
- ptrname = rr_data;
- }
-
- free(rr_name);
- aptr += rr_len;
- if (aptr > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- }
-
- if (status == ARES_SUCCESS && !hostname)
- status = ARES_ENODATA;
- if (status == ARES_SUCCESS)
- {
- /* We got our answer. Allocate memory to build the host entry. */
- hostent = malloc(sizeof(struct hostent));
- if (hostent)
- {
- hostent->h_addr_list = malloc(2 * sizeof(char *));
- if (hostent->h_addr_list)
- {
- hostent->h_addr_list[0] = malloc(addrlen);
- if (hostent->h_addr_list[0])
- {
- hostent->h_aliases = malloc((aliascnt+1) * sizeof (char *));
- if (hostent->h_aliases)
- {
- /* Fill in the hostent and return successfully. */
- hostent->h_name = hostname;
- for (i=0 ; i<aliascnt ; i++)
- hostent->h_aliases[i] = aliases[i];
- hostent->h_aliases[aliascnt] = NULL;
- hostent->h_addrtype = family;
- hostent->h_length = addrlen;
- memcpy(hostent->h_addr_list[0], addr, addrlen);
- hostent->h_addr_list[1] = NULL;
- *host = hostent;
- free(aliases);
- free(ptrname);
- return ARES_SUCCESS;
- }
- free(hostent->h_addr_list[0]);
- }
- free(hostent->h_addr_list);
- }
- free(hostent);
- }
- status = ARES_ENOMEM;
- }
- for (i=0 ; i<aliascnt ; i++)
- if (aliases[i])
- free(aliases[i]);
- free(aliases);
- if (hostname)
- free(hostname);
- free(ptrname);
- return status;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2009 by Jakub Hrozek <jhrozek@redhat.com>
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_data.h"
-#include "ares_private.h"
-
-/* AIX portability check */
-#ifndef T_SRV
-# define T_SRV 33 /* server selection */
-#endif
-
-int
-ares_parse_srv_reply (const unsigned char *abuf, int alen,
- struct ares_srv_reply **srv_out)
-{
- unsigned int qdcount, ancount, i;
- const unsigned char *aptr, *vptr;
- int status, rr_type, rr_class, rr_len;
- long len;
- char *hostname = NULL, *rr_name = NULL;
- struct ares_srv_reply *srv_head = NULL;
- struct ares_srv_reply *srv_last = NULL;
- struct ares_srv_reply *srv_curr;
-
- /* Set *srv_out to NULL for all failure cases. */
- *srv_out = NULL;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT (abuf);
- ancount = DNS_HEADER_ANCOUNT (abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
- if (ancount == 0)
- return ARES_ENODATA;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares_expand_name (aptr, abuf, alen, &hostname, &len);
- if (status != ARES_SUCCESS)
- return status;
-
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free (hostname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Examine each answer resource record (RR) in turn. */
- for (i = 0; i < ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares_expand_name (aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- {
- break;
- }
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE (aptr);
- rr_class = DNS_RR_CLASS (aptr);
- rr_len = DNS_RR_LEN (aptr);
- aptr += RRFIXEDSZ;
-
- /* Check if we are really looking at a SRV record */
- if (rr_class == C_IN && rr_type == T_SRV)
- {
- /* parse the SRV record itself */
- if (rr_len < 6)
- {
- status = ARES_EBADRESP;
- break;
- }
-
- /* Allocate storage for this SRV answer appending it to the list */
- srv_curr = ares_malloc_data(ARES_DATATYPE_SRV_REPLY);
- if (!srv_curr)
- {
- status = ARES_ENOMEM;
- break;
- }
- if (srv_last)
- {
- srv_last->next = srv_curr;
- }
- else
- {
- srv_head = srv_curr;
- }
- srv_last = srv_curr;
-
- vptr = aptr;
- srv_curr->priority = ntohs (*((unsigned short *)vptr));
- vptr += sizeof(unsigned short);
- srv_curr->weight = ntohs (*((unsigned short *)vptr));
- vptr += sizeof(unsigned short);
- srv_curr->port = ntohs (*((unsigned short *)vptr));
- vptr += sizeof(unsigned short);
-
- status = ares_expand_name (vptr, abuf, alen, &srv_curr->host, &len);
- if (status != ARES_SUCCESS)
- break;
- }
-
- /* Don't lose memory in the next iteration */
- free (rr_name);
- rr_name = NULL;
-
- /* Move on to the next record */
- aptr += rr_len;
- }
-
- if (hostname)
- free (hostname);
- if (rr_name)
- free (rr_name);
-
- /* clean up on error */
- if (status != ARES_SUCCESS)
- {
- if (srv_head)
- ares_free_data (srv_head);
- return status;
- }
-
- /* everything looks fine, return the data */
- *srv_out = srv_head;
-
- return ARES_SUCCESS;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2009 by Jakub Hrozek <jhrozek@redhat.com>
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_data.h"
-#include "ares_private.h"
-
-int
-ares_parse_txt_reply (const unsigned char *abuf, int alen,
- struct ares_txt_reply **txt_out)
-{
- size_t substr_len, str_len;
- unsigned int qdcount, ancount, i;
- const unsigned char *aptr;
- const unsigned char *strptr;
- int status, rr_type, rr_class, rr_len;
- long len;
- char *hostname = NULL, *rr_name = NULL;
- struct ares_txt_reply *txt_head = NULL;
- struct ares_txt_reply *txt_last = NULL;
- struct ares_txt_reply *txt_curr;
-
- /* Set *txt_out to NULL for all failure cases. */
- *txt_out = NULL;
-
- /* Give up if abuf doesn't have room for a header. */
- if (alen < HFIXEDSZ)
- return ARES_EBADRESP;
-
- /* Fetch the question and answer count from the header. */
- qdcount = DNS_HEADER_QDCOUNT (abuf);
- ancount = DNS_HEADER_ANCOUNT (abuf);
- if (qdcount != 1)
- return ARES_EBADRESP;
- if (ancount == 0)
- return ARES_ENODATA;
-
- /* Expand the name from the question, and skip past the question. */
- aptr = abuf + HFIXEDSZ;
- status = ares_expand_name (aptr, abuf, alen, &hostname, &len);
- if (status != ARES_SUCCESS)
- return status;
-
- if (aptr + len + QFIXEDSZ > abuf + alen)
- {
- free (hostname);
- return ARES_EBADRESP;
- }
- aptr += len + QFIXEDSZ;
-
- /* Examine each answer resource record (RR) in turn. */
- for (i = 0; i < ancount; i++)
- {
- /* Decode the RR up to the data field. */
- status = ares_expand_name (aptr, abuf, alen, &rr_name, &len);
- if (status != ARES_SUCCESS)
- {
- break;
- }
- aptr += len;
- if (aptr + RRFIXEDSZ > abuf + alen)
- {
- status = ARES_EBADRESP;
- break;
- }
- rr_type = DNS_RR_TYPE (aptr);
- rr_class = DNS_RR_CLASS (aptr);
- rr_len = DNS_RR_LEN (aptr);
- aptr += RRFIXEDSZ;
-
- /* Check if we are really looking at a TXT record */
- if (rr_class == C_IN && rr_type == T_TXT)
- {
- /* Allocate storage for this TXT answer appending it to the list */
- txt_curr = ares_malloc_data(ARES_DATATYPE_TXT_REPLY);
- if (!txt_curr)
- {
- status = ARES_ENOMEM;
- break;
- }
- if (txt_last)
- {
- txt_last->next = txt_curr;
- }
- else
- {
- txt_head = txt_curr;
- }
- txt_last = txt_curr;
-
- /*
- * There may be multiple substrings in a single TXT record. Each
- * substring may be up to 255 characters in length, with a
- * "length byte" indicating the size of the substring payload.
- * RDATA contains both the length-bytes and payloads of all
- * substrings contained therein.
- */
-
- /* Compute total length to allow a single memory allocation */
- strptr = aptr;
- while (strptr < (aptr + rr_len))
- {
- substr_len = (unsigned char)*strptr;
- txt_curr->length += substr_len;
- strptr += substr_len + 1;
- }
-
- /* Including null byte */
- txt_curr->txt = malloc (txt_curr->length + 1);
- if (txt_curr->txt == NULL)
- {
- status = ARES_ENOMEM;
- break;
- }
-
- /* Step through the list of substrings, concatenating them */
- str_len = 0;
- strptr = aptr;
- while (strptr < (aptr + rr_len))
- {
- substr_len = (unsigned char)*strptr;
- strptr++;
- memcpy ((char *) txt_curr->txt + str_len, strptr, substr_len);
- str_len += substr_len;
- strptr += substr_len;
- }
- /* Make sure we NULL-terminate */
- *((char *) txt_curr->txt + txt_curr->length) = '\0';
- }
-
- /* Don't lose memory in the next iteration */
- free (rr_name);
- rr_name = NULL;
-
- /* Move on to the next record */
- aptr += rr_len;
- }
-
- if (hostname)
- free (hostname);
- if (rr_name)
- free (rr_name);
-
- /* clean up on error */
- if (status != ARES_SUCCESS)
- {
- if (txt_head)
- ares_free_data (txt_head);
- return status;
- }
-
- /* everything looks fine, return the data */
- *txt_out = txt_head;
-
- return ARES_SUCCESS;
-}
+++ /dev/null
-#ifndef __ARES_PRIVATE_H
-#define __ARES_PRIVATE_H
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2004-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-/*
- * Define WIN32 when build target is Win32 API
- */
-
-#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
-#define WIN32
-#endif
-
-#include <stdio.h>
-#include <sys/types.h>
-
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-
-#ifdef WATT32
-#include <tcp.h>
-#include <sys/ioctl.h>
-#define writev(s,v,c) writev_s(s,v,c)
-#define HAVE_WRITEV 1
-#endif
-
-#ifdef NETWARE
-#include <time.h>
-#endif
-
-#define DEFAULT_TIMEOUT 5000 /* milliseconds */
-#define DEFAULT_TRIES 4
-#ifndef INADDR_NONE
-#define INADDR_NONE 0xffffffff
-#endif
-
-#if defined(WIN32) && !defined(WATT32)
-
-#define IS_NT() ((int)GetVersion() > 0)
-#define WIN_NS_9X "System\\CurrentControlSet\\Services\\VxD\\MSTCP"
-#define WIN_NS_NT_KEY "System\\CurrentControlSet\\Services\\Tcpip\\Parameters"
-#define NAMESERVER "NameServer"
-#define DHCPNAMESERVER "DhcpNameServer"
-#define DATABASEPATH "DatabasePath"
-#define WIN_PATH_HOSTS "\\hosts"
-
-#elif defined(WATT32)
-
-#define PATH_RESOLV_CONF "/dev/ENV/etc/resolv.conf"
-
-#elif defined(NETWARE)
-
-#define PATH_RESOLV_CONF "sys:/etc/resolv.cfg"
-#define PATH_HOSTS "sys:/etc/hosts"
-
-#elif defined(__riscos__)
-
-#define PATH_HOSTS "InetDBase:Hosts"
-
-#else
-
-#define PATH_RESOLV_CONF "/etc/resolv.conf"
-#ifdef ETC_INET
-#define PATH_HOSTS "/etc/inet/hosts"
-#else
-#define PATH_HOSTS "/etc/hosts"
-#endif
-
-#endif
-
-#define ARES_ID_KEY_LEN 31
-
-#include "ares_ipv6.h"
-#include "ares_llist.h"
-
-#ifndef HAVE_STRDUP
-# include "ares_strdup.h"
-# define strdup(ptr) ares_strdup(ptr)
-#endif
-
-#ifndef HAVE_STRCASECMP
-# include "ares_strcasecmp.h"
-# define strcasecmp(p1,p2) ares_strcasecmp(p1,p2)
-#endif
-
-#ifndef HAVE_STRNCASECMP
-# include "ares_strcasecmp.h"
-# define strncasecmp(p1,p2,n) ares_strncasecmp(p1,p2,n)
-#endif
-
-#ifndef HAVE_WRITEV
-# include "ares_writev.h"
-# define writev(s,ptr,cnt) ares_writev(s,ptr,cnt)
-#endif
-
-struct ares_addr {
- int family;
- union {
- struct in_addr addr4;
- struct ares_in6_addr addr6;
- } addr;
-};
-#define addrV4 addr.addr4
-#define addrV6 addr.addr6
-
-struct query;
-
-struct send_request {
- /* Remaining data to send */
- const unsigned char *data;
- size_t len;
-
- /* The query for which we're sending this data */
- struct query* owner_query;
- /* The buffer we're using, if we have our own copy of the packet */
- unsigned char *data_storage;
-
- /* Next request in queue */
- struct send_request *next;
-};
-
-struct server_state {
- struct ares_addr addr;
- ares_socket_t udp_socket;
- ares_socket_t tcp_socket;
-
- /* Mini-buffer for reading the length word */
- unsigned char tcp_lenbuf[2];
- int tcp_lenbuf_pos;
- int tcp_length;
-
- /* Buffer for reading actual TCP data */
- unsigned char *tcp_buffer;
- int tcp_buffer_pos;
-
- /* TCP output queue */
- struct send_request *qhead;
- struct send_request *qtail;
-
- /* Which incarnation of this connection is this? We don't want to
- * retransmit requests into the very same socket, but if the server
- * closes on us and we re-open the connection, then we do want to
- * re-send. */
- int tcp_connection_generation;
-
- /* Circular, doubly-linked list of outstanding queries to this server */
- struct list_node queries_to_server;
-
- /* Link back to owning channel */
- ares_channel channel;
-
- /* Is this server broken? We mark connections as broken when a
- * request that is queued for sending times out.
- */
- int is_broken;
-};
-
-/* State to represent a DNS query */
-struct query {
- /* Query ID from qbuf, for faster lookup, and current timeout */
- unsigned short qid;
- struct timeval timeout;
-
- /*
- * Links for the doubly-linked lists in which we insert a query.
- * These circular, doubly-linked lists that are hash-bucketed based
- * the attributes we care about, help making most important
- * operations O(1).
- */
- struct list_node queries_by_qid; /* hopefully in same cache line as qid */
- struct list_node queries_by_timeout;
- struct list_node queries_to_server;
- struct list_node all_queries;
-
- /* Query buf with length at beginning, for TCP transmission */
- unsigned char *tcpbuf;
- int tcplen;
-
- /* Arguments passed to ares_send() (qbuf points into tcpbuf) */
- const unsigned char *qbuf;
- int qlen;
- ares_callback callback;
- void *arg;
-
- /* Query status */
- int try; /* Number of times we tried this query already. */
- int server; /* Server this query has last been sent to. */
- struct query_server_info *server_info; /* per-server state */
- int using_tcp;
- int error_status;
- int timeouts; /* number of timeouts we saw for this request */
-};
-
-/* Per-server state for a query */
-struct query_server_info {
- int skip_server; /* should we skip server, due to errors, etc? */
- int tcp_connection_generation; /* into which TCP connection did we send? */
-};
-
-/* An IP address pattern; matches an IP address X if X & mask == addr */
-#define PATTERN_MASK 0x1
-#define PATTERN_CIDR 0x2
-
-struct apattern {
- union
- {
- struct in_addr addr4;
- struct ares_in6_addr addr6;
- } addr;
- union
- {
- struct in_addr addr4;
- struct ares_in6_addr addr6;
- unsigned short bits;
- } mask;
- int family;
- unsigned short type;
-};
-
-typedef struct rc4_key
-{
- unsigned char state[256];
- unsigned char x;
- unsigned char y;
-} rc4_key;
-
-struct ares_channeldata {
- /* Configuration data */
- int flags;
- int timeout; /* in milliseconds */
- int tries;
- int ndots;
- int rotate; /* if true, all servers specified are used */
- int udp_port;
- int tcp_port;
- int socket_send_buffer_size;
- int socket_receive_buffer_size;
- char **domains;
- int ndomains;
- struct apattern *sortlist;
- int nsort;
- char *lookups;
-
- /* For binding to local devices and/or IP addresses. Leave
- * them null/zero for no binding.
- */
- char local_dev_name[32];
- unsigned int local_ip4;
- unsigned char local_ip6[16];
-
- int optmask; /* the option bitfield passed in at init time */
-
- /* Server addresses and communications state */
- struct server_state *servers;
- int nservers;
-
- /* ID to use for next query */
- unsigned short next_id;
- /* key to use when generating new ids */
- rc4_key id_key;
-
- /* Generation number to use for the next TCP socket open/close */
- int tcp_connection_generation;
-
- /* The time at which we last called process_timeouts(). Uses integer seconds
- just to draw the line somewhere. */
- time_t last_timeout_processed;
-
- /* Last server we sent a query to. */
- int last_server;
-
- /* Circular, doubly-linked list of queries, bucketed various ways.... */
- /* All active queries in a single list: */
- struct list_node all_queries;
- /* Queries bucketed by qid, for quickly dispatching DNS responses: */
-#define ARES_QID_TABLE_SIZE 2048
- struct list_node queries_by_qid[ARES_QID_TABLE_SIZE];
- /* Queries bucketed by timeout, for quickly handling timeouts: */
-#define ARES_TIMEOUT_TABLE_SIZE 1024
- struct list_node queries_by_timeout[ARES_TIMEOUT_TABLE_SIZE];
-
- ares_sock_state_cb sock_state_cb;
- void *sock_state_cb_data;
-
- ares_sock_create_callback sock_create_cb;
- void *sock_create_cb_data;
-};
-
-/* return true if now is exactly check time or later */
-int ares__timedout(struct timeval *now,
- struct timeval *check);
-/* add the specific number of milliseconds to the time in the first argument */
-int ares__timeadd(struct timeval *now,
- int millisecs);
-/* return time offset between now and (future) check, in milliseconds */
-long ares__timeoffset(struct timeval *now,
- struct timeval *check);
-/* returns ARES_SUCCESS if library has been initialized */
-int ares_library_initialized(void);
-void ares__rc4(rc4_key* key,unsigned char *buffer_ptr, int buffer_len);
-void ares__send_query(ares_channel channel, struct query *query,
- struct timeval *now);
-void ares__close_sockets(ares_channel channel, struct server_state *server);
-int ares__get_hostent(FILE *fp, int family, struct hostent **host);
-int ares__read_line(FILE *fp, char **buf, size_t *bufsize);
-void ares__free_query(struct query *query);
-unsigned short ares__generate_new_id(rc4_key* key);
-struct timeval ares__tvnow(void);
-int ares__expand_name_for_response(const unsigned char *encoded,
- const unsigned char *abuf, int alen,
- char **s, long *enclen);
-void ares__init_servers_state(ares_channel channel);
-void ares__destroy_servers_state(ares_channel channel);
-#if 0 /* Not used */
-long ares__tvdiff(struct timeval t1, struct timeval t2);
-#endif
-
-#define ARES_SWAP_BYTE(a,b) \
- { unsigned char swapByte = *(a); *(a) = *(b); *(b) = swapByte; }
-
-#define SOCK_STATE_CALLBACK(c, s, r, w) \
- do { \
- if ((c)->sock_state_cb) \
- (c)->sock_state_cb((c)->sock_state_cb_data, (s), (r), (w)); \
- } while (0)
-
-#ifdef CURLDEBUG
-/* This is low-level hard-hacking memory leak tracking and similar. Using the
- libcurl lowlevel code from within library is ugly and only works when
- c-ares is built and linked with a similarly curldebug-enabled libcurl,
- but we do this anyway for convenience. */
-#include "../lib/memdebug.h"
-#endif
-
-#endif /* __ARES_PRIVATE_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- * Copyright (C) 2004-2010 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_SYS_UIO_H
-# include <sys/uio.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETINET_TCP_H
-# include <netinet/tcp.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-#endif
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#ifdef HAVE_SYS_IOCTL_H
-# include <sys/ioctl.h>
-#endif
-#ifdef NETWARE
-# include <sys/filio.h>
-#endif
-
-#include <assert.h>
-#include <string.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <time.h>
-#include <errno.h>
-
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-
-static int try_again(int errnum);
-static void write_tcp_data(ares_channel channel, fd_set *write_fds,
- ares_socket_t write_fd, struct timeval *now);
-static void read_tcp_data(ares_channel channel, fd_set *read_fds,
- ares_socket_t read_fd, struct timeval *now);
-static void read_udp_packets(ares_channel channel, fd_set *read_fds,
- ares_socket_t read_fd, struct timeval *now);
-static void advance_tcp_send_queue(ares_channel channel, int whichserver,
- ssize_t num_bytes);
-static void process_timeouts(ares_channel channel, struct timeval *now);
-static void process_broken_connections(ares_channel channel,
- struct timeval *now);
-static void process_answer(ares_channel channel, unsigned char *abuf,
- int alen, int whichserver, int tcp,
- struct timeval *now);
-static void handle_error(ares_channel channel, int whichserver,
- struct timeval *now);
-static void skip_server(ares_channel channel, struct query *query,
- int whichserver);
-static void next_server(ares_channel channel, struct query *query,
- struct timeval *now);
-static int open_tcp_socket(ares_channel channel, struct server_state *server);
-static int open_udp_socket(ares_channel channel, struct server_state *server);
-static int same_questions(const unsigned char *qbuf, int qlen,
- const unsigned char *abuf, int alen);
-static int same_address(struct sockaddr *sa, struct ares_addr *aa);
-static void end_query(ares_channel channel, struct query *query, int status,
- unsigned char *abuf, int alen);
-
-/* return true if now is exactly check time or later */
-int ares__timedout(struct timeval *now,
- struct timeval *check)
-{
- long secs = (now->tv_sec - check->tv_sec);
-
- if(secs > 0)
- return 1; /* yes, timed out */
- if(secs < 0)
- return 0; /* nope, not timed out */
-
- /* if the full seconds were identical, check the sub second parts */
- return (now->tv_usec - check->tv_usec >= 0);
-}
-
-/* add the specific number of milliseconds to the time in the first argument */
-int ares__timeadd(struct timeval *now,
- int millisecs)
-{
- now->tv_sec += millisecs/1000;
- now->tv_usec += (millisecs%1000)*1000;
-
- if(now->tv_usec >= 1000000) {
- ++(now->tv_sec);
- now->tv_usec -= 1000000;
- }
-
- return 0;
-}
-
-/* return time offset between now and (future) check, in milliseconds */
-long ares__timeoffset(struct timeval *now,
- struct timeval *check)
-{
- return (check->tv_sec - now->tv_sec)*1000 +
- (check->tv_usec - now->tv_usec)/1000;
-}
-
-
-/*
- * generic process function
- */
-static void processfds(ares_channel channel,
- fd_set *read_fds, ares_socket_t read_fd,
- fd_set *write_fds, ares_socket_t write_fd)
-{
- struct timeval now = ares__tvnow();
-
- write_tcp_data(channel, write_fds, write_fd, &now);
- read_tcp_data(channel, read_fds, read_fd, &now);
- read_udp_packets(channel, read_fds, read_fd, &now);
- process_timeouts(channel, &now);
- process_broken_connections(channel, &now);
-}
-
-/* Something interesting happened on the wire, or there was a timeout.
- * See what's up and respond accordingly.
- */
-void ares_process(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
-{
- processfds(channel, read_fds, ARES_SOCKET_BAD, write_fds, ARES_SOCKET_BAD);
-}
-
-/* Something interesting happened on the wire, or there was a timeout.
- * See what's up and respond accordingly.
- */
-void ares_process_fd(ares_channel channel,
- ares_socket_t read_fd, /* use ARES_SOCKET_BAD or valid
- file descriptors */
- ares_socket_t write_fd)
-{
- processfds(channel, NULL, read_fd, NULL, write_fd);
-}
-
-
-/* Return 1 if the specified error number describes a readiness error, or 0
- * otherwise. This is mostly for HP-UX, which could return EAGAIN or
- * EWOULDBLOCK. See this man page
- *
- * http://devrsrc1.external.hp.com/STKS/cgi-bin/man2html?
- * manpage=/usr/share/man/man2.Z/send.2
- */
-static int try_again(int errnum)
-{
-#if !defined EWOULDBLOCK && !defined EAGAIN
-#error "Neither EWOULDBLOCK nor EAGAIN defined"
-#endif
- switch (errnum)
- {
-#ifdef EWOULDBLOCK
- case EWOULDBLOCK:
- return 1;
-#endif
-#if defined EAGAIN && EAGAIN != EWOULDBLOCK
- case EAGAIN:
- return 1;
-#endif
- }
- return 0;
-}
-
-/* If any TCP sockets select true for writing, write out queued data
- * we have for them.
- */
-static void write_tcp_data(ares_channel channel,
- fd_set *write_fds,
- ares_socket_t write_fd,
- struct timeval *now)
-{
- struct server_state *server;
- struct send_request *sendreq;
- struct iovec *vec;
- int i;
- ssize_t scount;
- ssize_t wcount;
- size_t n;
-
- if(!write_fds && (write_fd == ARES_SOCKET_BAD))
- /* no possible action */
- return;
-
- for (i = 0; i < channel->nservers; i++)
- {
- /* Make sure server has data to send and is selected in write_fds or
- write_fd. */
- server = &channel->servers[i];
- if (!server->qhead || server->tcp_socket == ARES_SOCKET_BAD ||
- server->is_broken)
- continue;
-
- if(write_fds) {
- if(!FD_ISSET(server->tcp_socket, write_fds))
- continue;
- }
- else {
- if(server->tcp_socket != write_fd)
- continue;
- }
-
- if(write_fds)
- /* If there's an error and we close this socket, then open
- * another with the same fd to talk to another server, then we
- * don't want to think that it was the new socket that was
- * ready. This is not disastrous, but is likely to result in
- * extra system calls and confusion. */
- FD_CLR(server->tcp_socket, write_fds);
-
- /* Count the number of send queue items. */
- n = 0;
- for (sendreq = server->qhead; sendreq; sendreq = sendreq->next)
- n++;
-
- /* Allocate iovecs so we can send all our data at once. */
- vec = malloc(n * sizeof(struct iovec));
- if (vec)
- {
- /* Fill in the iovecs and send. */
- n = 0;
- for (sendreq = server->qhead; sendreq; sendreq = sendreq->next)
- {
- vec[n].iov_base = (char *) sendreq->data;
- vec[n].iov_len = sendreq->len;
- n++;
- }
- wcount = (ssize_t)writev(server->tcp_socket, vec, (int)n);
- free(vec);
- if (wcount < 0)
- {
- if (!try_again(SOCKERRNO))
- handle_error(channel, i, now);
- continue;
- }
-
- /* Advance the send queue by as many bytes as we sent. */
- advance_tcp_send_queue(channel, i, wcount);
- }
- else
- {
- /* Can't allocate iovecs; just send the first request. */
- sendreq = server->qhead;
-
- scount = swrite(server->tcp_socket, sendreq->data, sendreq->len);
- if (scount < 0)
- {
- if (!try_again(SOCKERRNO))
- handle_error(channel, i, now);
- continue;
- }
-
- /* Advance the send queue by as many bytes as we sent. */
- advance_tcp_send_queue(channel, i, scount);
- }
- }
-}
-
-/* Consume the given number of bytes from the head of the TCP send queue. */
-static void advance_tcp_send_queue(ares_channel channel, int whichserver,
- ssize_t num_bytes)
-{
- struct send_request *sendreq;
- struct server_state *server = &channel->servers[whichserver];
- while (num_bytes > 0)
- {
- sendreq = server->qhead;
- if ((size_t)num_bytes >= sendreq->len)
- {
- num_bytes -= sendreq->len;
- server->qhead = sendreq->next;
- if (server->qhead == NULL)
- {
- SOCK_STATE_CALLBACK(channel, server->tcp_socket, 1, 0);
- server->qtail = NULL;
- }
- if (sendreq->data_storage != NULL)
- free(sendreq->data_storage);
- free(sendreq);
- }
- else
- {
- sendreq->data += num_bytes;
- sendreq->len -= num_bytes;
- num_bytes = 0;
- }
- }
-}
-
-/* If any TCP socket selects true for reading, read some data,
- * allocate a buffer if we finish reading the length word, and process
- * a packet if we finish reading one.
- */
-static void read_tcp_data(ares_channel channel, fd_set *read_fds,
- ares_socket_t read_fd, struct timeval *now)
-{
- struct server_state *server;
- int i;
- ssize_t count;
-
- if(!read_fds && (read_fd == ARES_SOCKET_BAD))
- /* no possible action */
- return;
-
- for (i = 0; i < channel->nservers; i++)
- {
- /* Make sure the server has a socket and is selected in read_fds. */
- server = &channel->servers[i];
- if (server->tcp_socket == ARES_SOCKET_BAD || server->is_broken)
- continue;
-
- if(read_fds) {
- if(!FD_ISSET(server->tcp_socket, read_fds))
- continue;
- }
- else {
- if(server->tcp_socket != read_fd)
- continue;
- }
-
- if(read_fds)
- /* If there's an error and we close this socket, then open
- * another with the same fd to talk to another server, then we
- * don't want to think that it was the new socket that was
- * ready. This is not disastrous, but is likely to result in
- * extra system calls and confusion. */
- FD_CLR(server->tcp_socket, read_fds);
-
- if (server->tcp_lenbuf_pos != 2)
- {
- /* We haven't yet read a length word, so read that (or
- * what's left to read of it).
- */
- count = sread(server->tcp_socket,
- server->tcp_lenbuf + server->tcp_lenbuf_pos,
- 2 - server->tcp_lenbuf_pos);
- if (count <= 0)
- {
- if (!(count == -1 && try_again(SOCKERRNO)))
- handle_error(channel, i, now);
- continue;
- }
-
- server->tcp_lenbuf_pos += (int)count;
- if (server->tcp_lenbuf_pos == 2)
- {
- /* We finished reading the length word. Decode the
- * length and allocate a buffer for the data.
- */
- server->tcp_length = server->tcp_lenbuf[0] << 8
- | server->tcp_lenbuf[1];
- server->tcp_buffer = malloc(server->tcp_length);
- if (!server->tcp_buffer)
- handle_error(channel, i, now);
- server->tcp_buffer_pos = 0;
- }
- }
- else
- {
- /* Read data into the allocated buffer. */
- count = sread(server->tcp_socket,
- server->tcp_buffer + server->tcp_buffer_pos,
- server->tcp_length - server->tcp_buffer_pos);
- if (count <= 0)
- {
- if (!(count == -1 && try_again(SOCKERRNO)))
- handle_error(channel, i, now);
- continue;
- }
-
- server->tcp_buffer_pos += (int)count;
- if (server->tcp_buffer_pos == server->tcp_length)
- {
- /* We finished reading this answer; process it and
- * prepare to read another length word.
- */
- process_answer(channel, server->tcp_buffer, server->tcp_length,
- i, 1, now);
- if (server->tcp_buffer)
- free(server->tcp_buffer);
- server->tcp_buffer = NULL;
- server->tcp_lenbuf_pos = 0;
- server->tcp_buffer_pos = 0;
- }
- }
- }
-}
-
-/* If any UDP sockets select true for reading, process them. */
-static void read_udp_packets(ares_channel channel, fd_set *read_fds,
- ares_socket_t read_fd, struct timeval *now)
-{
- struct server_state *server;
- int i;
- ssize_t count;
- unsigned char buf[PACKETSZ + 1];
-#ifdef HAVE_RECVFROM
- ares_socklen_t fromlen;
- union {
- struct sockaddr sa;
- struct sockaddr_in sa4;
- struct sockaddr_in6 sa6;
- } from;
-#endif
-
- if(!read_fds && (read_fd == ARES_SOCKET_BAD))
- /* no possible action */
- return;
-
- for (i = 0; i < channel->nservers; i++)
- {
- /* Make sure the server has a socket and is selected in read_fds. */
- server = &channel->servers[i];
-
- if (server->udp_socket == ARES_SOCKET_BAD || server->is_broken)
- continue;
-
- if(read_fds) {
- if(!FD_ISSET(server->udp_socket, read_fds))
- continue;
- }
- else {
- if(server->udp_socket != read_fd)
- continue;
- }
-
- if(read_fds)
- /* If there's an error and we close this socket, then open
- * another with the same fd to talk to another server, then we
- * don't want to think that it was the new socket that was
- * ready. This is not disastrous, but is likely to result in
- * extra system calls and confusion. */
- FD_CLR(server->udp_socket, read_fds);
-
- /* To reduce event loop overhead, read and process as many
- * packets as we can. */
- do {
-#ifdef HAVE_RECVFROM
- if (server->addr.family == AF_INET)
- fromlen = sizeof(from.sa4);
- else
- fromlen = sizeof(from.sa6);
- count = (ssize_t)recvfrom(server->udp_socket, (void *)buf, sizeof(buf),
- 0, &from.sa, &fromlen);
-#else
- count = sread(server->udp_socket, buf, sizeof(buf));
-#endif
- if (count == -1 && try_again(SOCKERRNO))
- continue;
- else if (count <= 0)
- handle_error(channel, i, now);
-#ifdef HAVE_RECVFROM
- else if (!same_address(&from.sa, &server->addr))
- /* The address the response comes from does not match
- * the address we sent the request to. Someone may be
- * attempting to perform a cache poisoning attack. */
- break;
-#endif
- else
- process_answer(channel, buf, (int)count, i, 0, now);
- } while (count > 0);
- }
-}
-
-/* If any queries have timed out, note the timeout and move them on. */
-static void process_timeouts(ares_channel channel, struct timeval *now)
-{
- time_t t; /* the time of the timeouts we're processing */
- struct query *query;
- struct list_node* list_head;
- struct list_node* list_node;
-
- /* Process all the timeouts that have fired since the last time we
- * processed timeouts. If things are going well, then we'll have
- * hundreds/thousands of queries that fall into future buckets, and
- * only a handful of requests that fall into the "now" bucket, so
- * this should be quite quick.
- */
- for (t = channel->last_timeout_processed; t <= now->tv_sec; t++)
- {
- list_head = &(channel->queries_by_timeout[t % ARES_TIMEOUT_TABLE_SIZE]);
- for (list_node = list_head->next; list_node != list_head; )
- {
- query = list_node->data;
- list_node = list_node->next; /* in case the query gets deleted */
- if (query->timeout.tv_sec && ares__timedout(now, &query->timeout))
- {
- query->error_status = ARES_ETIMEOUT;
- ++query->timeouts;
- next_server(channel, query, now);
- }
- }
- }
- channel->last_timeout_processed = now->tv_sec;
-}
-
-/* Handle an answer from a server. */
-static void process_answer(ares_channel channel, unsigned char *abuf,
- int alen, int whichserver, int tcp,
- struct timeval *now)
-{
- int tc, rcode;
- unsigned short id;
- struct query *query;
- struct list_node* list_head;
- struct list_node* list_node;
-
- /* If there's no room in the answer for a header, we can't do much
- * with it. */
- if (alen < HFIXEDSZ)
- return;
-
- /* Grab the query ID, truncate bit, and response code from the packet. */
- id = DNS_HEADER_QID(abuf);
- tc = DNS_HEADER_TC(abuf);
- rcode = DNS_HEADER_RCODE(abuf);
-
- /* Find the query corresponding to this packet. The queries are
- * hashed/bucketed by query id, so this lookup should be quick.
- * Note that both the query id and the questions must be the same;
- * when the query id wraps around we can have multiple outstanding
- * queries with the same query id, so we need to check both the id and
- * question.
- */
- query = NULL;
- list_head = &(channel->queries_by_qid[id % ARES_QID_TABLE_SIZE]);
- for (list_node = list_head->next; list_node != list_head;
- list_node = list_node->next)
- {
- struct query *q = list_node->data;
- if ((q->qid == id) && same_questions(q->qbuf, q->qlen, abuf, alen))
- {
- query = q;
- break;
- }
- }
- if (!query)
- return;
-
- /* If we got a truncated UDP packet and are not ignoring truncation,
- * don't accept the packet, and switch the query to TCP if we hadn't
- * done so already.
- */
- if ((tc || alen > PACKETSZ) && !tcp && !(channel->flags & ARES_FLAG_IGNTC))
- {
- if (!query->using_tcp)
- {
- query->using_tcp = 1;
- ares__send_query(channel, query, now);
- }
- return;
- }
-
- /* Limit alen to PACKETSZ if we aren't using TCP (only relevant if we
- * are ignoring truncation.
- */
- if (alen > PACKETSZ && !tcp)
- alen = PACKETSZ;
-
- /* If we aren't passing through all error packets, discard packets
- * with SERVFAIL, NOTIMP, or REFUSED response codes.
- */
- if (!(channel->flags & ARES_FLAG_NOCHECKRESP))
- {
- if (rcode == SERVFAIL || rcode == NOTIMP || rcode == REFUSED)
- {
- skip_server(channel, query, whichserver);
- if (query->server == whichserver)
- next_server(channel, query, now);
- return;
- }
- }
-
- end_query(channel, query, ARES_SUCCESS, abuf, alen);
-}
-
-/* Close all the connections that are no longer usable. */
-static void process_broken_connections(ares_channel channel,
- struct timeval *now)
-{
- int i;
- for (i = 0; i < channel->nservers; i++)
- {
- struct server_state *server = &channel->servers[i];
- if (server->is_broken)
- {
- handle_error(channel, i, now);
- }
- }
-}
-
-static void handle_error(ares_channel channel, int whichserver,
- struct timeval *now)
-{
- struct server_state *server;
- struct query *query;
- struct list_node list_head;
- struct list_node* list_node;
-
- server = &channel->servers[whichserver];
-
- /* Reset communications with this server. */
- ares__close_sockets(channel, server);
-
- /* Tell all queries talking to this server to move on and not try
- * this server again. We steal the current list of queries that were
- * in-flight to this server, since when we call next_server this can
- * cause the queries to be re-sent to this server, which will
- * re-insert these queries in that same server->queries_to_server
- * list.
- */
- ares__init_list_head(&list_head);
- ares__swap_lists(&list_head, &(server->queries_to_server));
- for (list_node = list_head.next; list_node != &list_head; )
- {
- query = list_node->data;
- list_node = list_node->next; /* in case the query gets deleted */
- assert(query->server == whichserver);
- skip_server(channel, query, whichserver);
- next_server(channel, query, now);
- }
- /* Each query should have removed itself from our temporary list as
- * it re-sent itself or finished up...
- */
- assert(ares__is_list_empty(&list_head));
-}
-
-static void skip_server(ares_channel channel, struct query *query,
- int whichserver) {
- /* The given server gave us problems with this query, so if we have
- * the luxury of using other servers, then let's skip the
- * potentially broken server and just use the others. If we only
- * have one server and we need to retry then we should just go ahead
- * and re-use that server, since it's our only hope; perhaps we
- * just got unlucky, and retrying will work (eg, the server timed
- * out our TCP connection just as we were sending another request).
- */
- if (channel->nservers > 1)
- {
- query->server_info[whichserver].skip_server = 1;
- }
-}
-
-static void next_server(ares_channel channel, struct query *query,
- struct timeval *now)
-{
- /* We need to try each server channel->tries times. We have channel->nservers
- * servers to try. In total, we need to do channel->nservers * channel->tries
- * attempts. Use query->try to remember how many times we already attempted
- * this query. Use modular arithmetic to find the next server to try. */
- while (++(query->try) < (channel->nservers * channel->tries))
- {
- struct server_state *server;
-
- /* Move on to the next server. */
- query->server = (query->server + 1) % channel->nservers;
- server = &channel->servers[query->server];
-
- /* We don't want to use this server if (1) we decided this
- * connection is broken, and thus about to be closed, (2)
- * we've decided to skip this server because of earlier
- * errors we encountered, or (3) we already sent this query
- * over this exact connection.
- */
- if (!server->is_broken &&
- !query->server_info[query->server].skip_server &&
- !(query->using_tcp &&
- (query->server_info[query->server].tcp_connection_generation ==
- server->tcp_connection_generation)))
- {
- ares__send_query(channel, query, now);
- return;
- }
-
- /* You might think that with TCP we only need one try. However,
- * even when using TCP, servers can time-out our connection just
- * as we're sending a request, or close our connection because
- * they die, or never send us a reply because they get wedged or
- * tickle a bug that drops our request.
- */
- }
-
- /* If we are here, all attempts to perform query failed. */
- end_query(channel, query, query->error_status, NULL, 0);
-}
-
-void ares__send_query(ares_channel channel, struct query *query,
- struct timeval *now)
-{
- struct send_request *sendreq;
- struct server_state *server;
- int timeplus;
-
- server = &channel->servers[query->server];
- if (query->using_tcp)
- {
- /* Make sure the TCP socket for this server is set up and queue
- * a send request.
- */
- if (server->tcp_socket == ARES_SOCKET_BAD)
- {
- if (open_tcp_socket(channel, server) == -1)
- {
- skip_server(channel, query, query->server);
- next_server(channel, query, now);
- return;
- }
- }
- sendreq = calloc(1, sizeof(struct send_request));
- if (!sendreq)
- {
- end_query(channel, query, ARES_ENOMEM, NULL, 0);
- return;
- }
- /* To make the common case fast, we avoid copies by using the
- * query's tcpbuf for as long as the query is alive. In the rare
- * case where the query ends while it's queued for transmission,
- * then we give the sendreq its own copy of the request packet
- * and put it in sendreq->data_storage.
- */
- sendreq->data_storage = NULL;
- sendreq->data = query->tcpbuf;
- sendreq->len = query->tcplen;
- sendreq->owner_query = query;
- sendreq->next = NULL;
- if (server->qtail)
- server->qtail->next = sendreq;
- else
- {
- SOCK_STATE_CALLBACK(channel, server->tcp_socket, 1, 1);
- server->qhead = sendreq;
- }
- server->qtail = sendreq;
- query->server_info[query->server].tcp_connection_generation =
- server->tcp_connection_generation;
- }
- else
- {
- if (server->udp_socket == ARES_SOCKET_BAD)
- {
- if (open_udp_socket(channel, server) == -1)
- {
- skip_server(channel, query, query->server);
- next_server(channel, query, now);
- return;
- }
- }
- if (swrite(server->udp_socket, query->qbuf, query->qlen) == -1)
- {
- /* FIXME: Handle EAGAIN here since it likely can happen. */
- skip_server(channel, query, query->server);
- next_server(channel, query, now);
- return;
- }
- }
- timeplus = channel->timeout << (query->try / channel->nservers);
- timeplus = (timeplus * (9 + (rand () & 7))) / 16;
- query->timeout = *now;
- ares__timeadd(&query->timeout,
- timeplus);
- /* Keep track of queries bucketed by timeout, so we can process
- * timeout events quickly.
- */
- ares__remove_from_list(&(query->queries_by_timeout));
- ares__insert_in_list(
- &(query->queries_by_timeout),
- &(channel->queries_by_timeout[query->timeout.tv_sec %
- ARES_TIMEOUT_TABLE_SIZE]));
-
- /* Keep track of queries bucketed by server, so we can process server
- * errors quickly.
- */
- ares__remove_from_list(&(query->queries_to_server));
- ares__insert_in_list(&(query->queries_to_server),
- &(server->queries_to_server));
-}
-
-/*
- * setsocknonblock sets the given socket to either blocking or non-blocking
- * mode based on the 'nonblock' boolean argument. This function is highly
- * portable.
- */
-static int setsocknonblock(ares_socket_t sockfd, /* operate on this */
- int nonblock /* TRUE or FALSE */)
-{
-#if defined(USE_BLOCKING_SOCKETS)
-
- return 0; /* returns success */
-
-#elif defined(HAVE_FCNTL_O_NONBLOCK)
-
- /* most recent unix versions */
- int flags;
- flags = fcntl(sockfd, F_GETFL, 0);
- if (FALSE != nonblock)
- return fcntl(sockfd, F_SETFL, flags | O_NONBLOCK);
- else
- return fcntl(sockfd, F_SETFL, flags & (~O_NONBLOCK));
-
-#elif defined(HAVE_IOCTL_FIONBIO)
-
- /* older unix versions */
- int flags;
- flags = nonblock;
- return ioctl(sockfd, FIONBIO, &flags);
-
-#elif defined(HAVE_IOCTLSOCKET_FIONBIO)
-
-#ifdef WATT32
- char flags;
-#else
- /* Windows */
- unsigned long flags;
-#endif
- flags = nonblock;
- return ioctlsocket(sockfd, FIONBIO, &flags);
-
-#elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO)
-
- /* Amiga */
- return IoctlSocket(sockfd, FIONBIO, (long)nonblock);
-
-#elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK)
-
- /* BeOS */
- long b = nonblock ? 1 : 0;
- return setsockopt(sockfd, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b));
-
-#else
-# error "no non-blocking method was found/used/set"
-#endif
-}
-
-static int configure_socket(ares_socket_t s, int family, ares_channel channel)
-{
- union {
- struct sockaddr sa;
- struct sockaddr_in sa4;
- struct sockaddr_in6 sa6;
- } local;
-
- setsocknonblock(s, TRUE);
-
-#if defined(FD_CLOEXEC) && !defined(MSDOS)
- /* Configure the socket fd as close-on-exec. */
- if (fcntl(s, F_SETFD, FD_CLOEXEC) == -1)
- return -1;
-#endif
-
- /* Set the socket's send and receive buffer sizes. */
- if ((channel->socket_send_buffer_size > 0) &&
- setsockopt(s, SOL_SOCKET, SO_SNDBUF,
- (void *)&channel->socket_send_buffer_size,
- sizeof(channel->socket_send_buffer_size)) == -1)
- return -1;
-
- if ((channel->socket_receive_buffer_size > 0) &&
- setsockopt(s, SOL_SOCKET, SO_RCVBUF,
- (void *)&channel->socket_receive_buffer_size,
- sizeof(channel->socket_receive_buffer_size)) == -1)
- return -1;
-
-#ifdef SO_BINDTODEVICE
- if (channel->local_dev_name[0]) {
- if (setsockopt(s, SOL_SOCKET, SO_BINDTODEVICE,
- channel->local_dev_name, sizeof(channel->local_dev_name))) {
- /* Only root can do this, and usually not fatal if it doesn't work, so */
- /* just continue on. */
- }
- }
-#endif
-
- if (family == AF_INET) {
- if (channel->local_ip4) {
- memset(&local.sa4, 0, sizeof(local.sa4));
- local.sa4.sin_family = AF_INET;
- local.sa4.sin_addr.s_addr = htonl(channel->local_ip4);
- if (bind(s, &local.sa, sizeof(local.sa4)) < 0)
- return -1;
- }
- }
- else if (family == AF_INET6) {
- if (memcmp(channel->local_ip6, &ares_in6addr_any, sizeof(channel->local_ip6)) != 0) {
- memset(&local.sa6, 0, sizeof(local.sa6));
- local.sa6.sin6_family = AF_INET6;
- memcpy(&local.sa6.sin6_addr, channel->local_ip6, sizeof(channel->local_ip6));
- if (bind(s, &local.sa, sizeof(local.sa6)) < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-static int open_tcp_socket(ares_channel channel, struct server_state *server)
-{
- ares_socket_t s;
- int opt;
- ares_socklen_t salen;
- union {
- struct sockaddr_in sa4;
- struct sockaddr_in6 sa6;
- } saddr;
- struct sockaddr *sa;
-
- switch (server->addr.family)
- {
- case AF_INET:
- sa = (void *)&saddr.sa4;
- salen = sizeof(saddr.sa4);
- memset(sa, 0, salen);
- saddr.sa4.sin_family = AF_INET;
- saddr.sa4.sin_port = (unsigned short)(channel->tcp_port & 0xffff);
- memcpy(&saddr.sa4.sin_addr, &server->addr.addrV4,
- sizeof(server->addr.addrV4));
- break;
- case AF_INET6:
- sa = (void *)&saddr.sa6;
- salen = sizeof(saddr.sa6);
- memset(sa, 0, salen);
- saddr.sa6.sin6_family = AF_INET6;
- saddr.sa6.sin6_port = (unsigned short)(channel->tcp_port & 0xffff);
- memcpy(&saddr.sa6.sin6_addr, &server->addr.addrV6,
- sizeof(server->addr.addrV6));
- break;
- default:
- return -1;
- }
-
- /* Acquire a socket. */
- s = socket(server->addr.family, SOCK_STREAM, 0);
- if (s == ARES_SOCKET_BAD)
- return -1;
-
- /* Configure it. */
- if (configure_socket(s, server->addr.family, channel) < 0)
- {
- sclose(s);
- return -1;
- }
-
-#ifdef TCP_NODELAY
- /*
- * Disable the Nagle algorithm (only relevant for TCP sockets, and thus not
- * in configure_socket). In general, in DNS lookups we're pretty much
- * interested in firing off a single request and then waiting for a reply,
- * so batching isn't very interesting.
- */
- opt = 1;
- if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY,
- (void *)&opt, sizeof(opt)) == -1)
- {
- sclose(s);
- return -1;
- }
-#endif
-
- /* Connect to the server. */
- if (connect(s, sa, salen) == -1)
- {
- int err = SOCKERRNO;
-
- if (err != EINPROGRESS && err != EWOULDBLOCK)
- {
- sclose(s);
- return -1;
- }
- }
-
- if (channel->sock_create_cb)
- {
- int err = channel->sock_create_cb(s, SOCK_STREAM,
- channel->sock_create_cb_data);
- if (err < 0)
- {
- sclose(s);
- return err;
- }
- }
-
- SOCK_STATE_CALLBACK(channel, s, 1, 0);
- server->tcp_buffer_pos = 0;
- server->tcp_socket = s;
- server->tcp_connection_generation = ++channel->tcp_connection_generation;
- return 0;
-}
-
-static int open_udp_socket(ares_channel channel, struct server_state *server)
-{
- ares_socket_t s;
- ares_socklen_t salen;
- union {
- struct sockaddr_in sa4;
- struct sockaddr_in6 sa6;
- } saddr;
- struct sockaddr *sa;
-
- switch (server->addr.family)
- {
- case AF_INET:
- sa = (void *)&saddr.sa4;
- salen = sizeof(saddr.sa4);
- memset(sa, 0, salen);
- saddr.sa4.sin_family = AF_INET;
- saddr.sa4.sin_port = (unsigned short)(channel->udp_port & 0xffff);
- memcpy(&saddr.sa4.sin_addr, &server->addr.addrV4,
- sizeof(server->addr.addrV4));
- break;
- case AF_INET6:
- sa = (void *)&saddr.sa6;
- salen = sizeof(saddr.sa6);
- memset(sa, 0, salen);
- saddr.sa6.sin6_family = AF_INET6;
- saddr.sa6.sin6_port = (unsigned short)(channel->udp_port & 0xffff);
- memcpy(&saddr.sa6.sin6_addr, &server->addr.addrV6,
- sizeof(server->addr.addrV6));
- break;
- default:
- return -1;
- }
-
- /* Acquire a socket. */
- s = socket(server->addr.family, SOCK_DGRAM, 0);
- if (s == ARES_SOCKET_BAD)
- return -1;
-
- /* Set the socket non-blocking. */
- if (configure_socket(s, server->addr.family, channel) < 0)
- {
- sclose(s);
- return -1;
- }
-
- /* Connect to the server. */
- if (connect(s, sa, salen) == -1)
- {
- int err = SOCKERRNO;
-
- if (err != EINPROGRESS && err != EWOULDBLOCK)
- {
- sclose(s);
- return -1;
- }
- }
-
- if (channel->sock_create_cb)
- {
- int err = channel->sock_create_cb(s, SOCK_DGRAM,
- channel->sock_create_cb_data);
- if (err < 0)
- {
- sclose(s);
- return err;
- }
- }
-
- SOCK_STATE_CALLBACK(channel, s, 1, 0);
-
- server->udp_socket = s;
- return 0;
-}
-
-static int same_questions(const unsigned char *qbuf, int qlen,
- const unsigned char *abuf, int alen)
-{
- struct {
- const unsigned char *p;
- int qdcount;
- char *name;
- long namelen;
- int type;
- int dnsclass;
- } q, a;
- int i, j;
-
- if (qlen < HFIXEDSZ || alen < HFIXEDSZ)
- return 0;
-
- /* Extract qdcount from the request and reply buffers and compare them. */
- q.qdcount = DNS_HEADER_QDCOUNT(qbuf);
- a.qdcount = DNS_HEADER_QDCOUNT(abuf);
- if (q.qdcount != a.qdcount)
- return 0;
-
- /* For each question in qbuf, find it in abuf. */
- q.p = qbuf + HFIXEDSZ;
- for (i = 0; i < q.qdcount; i++)
- {
- /* Decode the question in the query. */
- if (ares_expand_name(q.p, qbuf, qlen, &q.name, &q.namelen)
- != ARES_SUCCESS)
- return 0;
- q.p += q.namelen;
- if (q.p + QFIXEDSZ > qbuf + qlen)
- {
- free(q.name);
- return 0;
- }
- q.type = DNS_QUESTION_TYPE(q.p);
- q.dnsclass = DNS_QUESTION_CLASS(q.p);
- q.p += QFIXEDSZ;
-
- /* Search for this question in the answer. */
- a.p = abuf + HFIXEDSZ;
- for (j = 0; j < a.qdcount; j++)
- {
- /* Decode the question in the answer. */
- if (ares_expand_name(a.p, abuf, alen, &a.name, &a.namelen)
- != ARES_SUCCESS)
- {
- free(q.name);
- return 0;
- }
- a.p += a.namelen;
- if (a.p + QFIXEDSZ > abuf + alen)
- {
- free(q.name);
- free(a.name);
- return 0;
- }
- a.type = DNS_QUESTION_TYPE(a.p);
- a.dnsclass = DNS_QUESTION_CLASS(a.p);
- a.p += QFIXEDSZ;
-
- /* Compare the decoded questions. */
- if (strcasecmp(q.name, a.name) == 0 && q.type == a.type
- && q.dnsclass == a.dnsclass)
- {
- free(a.name);
- break;
- }
- free(a.name);
- }
-
- free(q.name);
- if (j == a.qdcount)
- return 0;
- }
- return 1;
-}
-
-static int same_address(struct sockaddr *sa, struct ares_addr *aa)
-{
- void *addr1;
- void *addr2;
-
- if (sa->sa_family == aa->family)
- {
- switch (aa->family)
- {
- case AF_INET:
- addr1 = &aa->addrV4;
- addr2 = &((struct sockaddr_in *)sa)->sin_addr;
- if (memcmp(addr1, addr2, sizeof(aa->addrV4)) == 0)
- return 1; /* match */
- break;
- case AF_INET6:
- addr1 = &aa->addrV6;
- addr2 = &((struct sockaddr_in6 *)sa)->sin6_addr;
- if (memcmp(addr1, addr2, sizeof(aa->addrV6)) == 0)
- return 1; /* match */
- break;
- default:
- break;
- }
- }
- return 0; /* different */
-}
-
-static void end_query (ares_channel channel, struct query *query, int status,
- unsigned char *abuf, int alen)
-{
- int i;
-
- /* First we check to see if this query ended while one of our send
- * queues still has pointers to it.
- */
- for (i = 0; i < channel->nservers; i++)
- {
- struct server_state *server = &channel->servers[i];
- struct send_request *sendreq;
- for (sendreq = server->qhead; sendreq; sendreq = sendreq->next)
- if (sendreq->owner_query == query)
- {
- sendreq->owner_query = NULL;
- assert(sendreq->data_storage == NULL);
- if (status == ARES_SUCCESS)
- {
- /* We got a reply for this query, but this queued
- * sendreq points into this soon-to-be-gone query's
- * tcpbuf. Probably this means we timed out and queued
- * the query for retransmission, then received a
- * response before actually retransmitting. This is
- * perfectly fine, so we want to keep the connection
- * running smoothly if we can. But in the worst case
- * we may have sent only some prefix of the query,
- * with some suffix of the query left to send. Also,
- * the buffer may be queued on multiple queues. To
- * prevent dangling pointers to the query's tcpbuf and
- * handle these cases, we just give such sendreqs
- * their own copy of the query packet.
- */
- sendreq->data_storage = malloc(sendreq->len);
- if (sendreq->data_storage != NULL)
- {
- memcpy(sendreq->data_storage, sendreq->data, sendreq->len);
- sendreq->data = sendreq->data_storage;
- }
- }
- if ((status != ARES_SUCCESS) || (sendreq->data_storage == NULL))
- {
- /* We encountered an error (probably a timeout,
- * suggesting the DNS server we're talking to is
- * probably unreachable, wedged, or severely
- * overloaded) or we couldn't copy the request, so
- * mark the connection as broken. When we get to
- * process_broken_connections() we'll close the
- * connection and try to re-send requests to another
- * server.
- */
- server->is_broken = 1;
- /* Just to be paranoid, zero out this sendreq... */
- sendreq->data = NULL;
- sendreq->len = 0;
- }
- }
- }
-
- /* Invoke the callback */
- query->callback(query->arg, status, query->timeouts, abuf, alen);
- ares__free_query(query);
-
- /* Simple cleanup policy: if no queries are remaining, close all
- * network sockets unless STAYOPEN is set.
- */
- if (!(channel->flags & ARES_FLAG_STAYOPEN) &&
- ares__is_list_empty(&(channel->all_queries)))
- {
- for (i = 0; i < channel->nservers; i++)
- ares__close_sockets(channel, &channel->servers[i]);
- }
-}
-
-void ares__free_query(struct query *query)
-{
- /* Remove the query from all the lists in which it is linked */
- ares__remove_from_list(&(query->queries_by_qid));
- ares__remove_from_list(&(query->queries_by_timeout));
- ares__remove_from_list(&(query->queries_to_server));
- ares__remove_from_list(&(query->all_queries));
- /* Zero out some important stuff, to help catch bugs */
- query->callback = NULL;
- query->arg = NULL;
- /* Deallocate the memory associated with the query */
- free(query->tcpbuf);
- free(query->server_info);
- free(query);
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-struct qquery {
- ares_callback callback;
- void *arg;
-};
-
-static void qcallback(void *arg, int status, int timeouts, unsigned char *abuf, int alen);
-
-void ares__rc4(rc4_key* key, unsigned char *buffer_ptr, int buffer_len)
-{
- unsigned char x;
- unsigned char y;
- unsigned char* state;
- unsigned char xorIndex;
- short counter;
-
- x = key->x;
- y = key->y;
-
- state = &key->state[0];
- for(counter = 0; counter < buffer_len; counter ++)
- {
- x = (unsigned char)((x + 1) % 256);
- y = (unsigned char)((state[x] + y) % 256);
- ARES_SWAP_BYTE(&state[x], &state[y]);
-
- xorIndex = (unsigned char)((state[x] + state[y]) % 256);
-
- buffer_ptr[counter] = (unsigned char)(buffer_ptr[counter]^state[xorIndex]);
- }
- key->x = x;
- key->y = y;
-}
-
-static struct query* find_query_by_id(ares_channel channel, unsigned short id)
-{
- unsigned short qid;
- struct list_node* list_head;
- struct list_node* list_node;
- DNS_HEADER_SET_QID(((unsigned char*)&qid), id);
-
- /* Find the query corresponding to this packet. */
- list_head = &(channel->queries_by_qid[qid % ARES_QID_TABLE_SIZE]);
- for (list_node = list_head->next; list_node != list_head;
- list_node = list_node->next)
- {
- struct query *q = list_node->data;
- if (q->qid == qid)
- return q;
- }
- return NULL;
-}
-
-
-/* a unique query id is generated using an rc4 key. Since the id may already
- be used by a running query (as infrequent as it may be), a lookup is
- performed per id generation. In practice this search should happen only
- once per newly generated id
-*/
-static unsigned short generate_unique_id(ares_channel channel)
-{
- unsigned short id;
-
- do {
- id = ares__generate_new_id(&channel->id_key);
- } while (find_query_by_id(channel, id));
-
- return (unsigned short)id;
-}
-
-void ares_query(ares_channel channel, const char *name, int dnsclass,
- int type, ares_callback callback, void *arg)
-{
- struct qquery *qquery;
- unsigned char *qbuf;
- int qlen, rd, status;
-
- /* Compose the query. */
- rd = !(channel->flags & ARES_FLAG_NORECURSE);
- status = ares_mkquery(name, dnsclass, type, channel->next_id, rd, &qbuf,
- &qlen);
- if (status != ARES_SUCCESS)
- {
- if (qbuf != NULL) free(qbuf);
- callback(arg, status, 0, NULL, 0);
- return;
- }
-
- channel->next_id = generate_unique_id(channel);
-
- /* Allocate and fill in the query structure. */
- qquery = malloc(sizeof(struct qquery));
- if (!qquery)
- {
- ares_free_string(qbuf);
- callback(arg, ARES_ENOMEM, 0, NULL, 0);
- return;
- }
- qquery->callback = callback;
- qquery->arg = arg;
-
- /* Send it off. qcallback will be called when we get an answer. */
- ares_send(channel, qbuf, qlen, qcallback, qquery);
- ares_free_string(qbuf);
-}
-
-static void qcallback(void *arg, int status, int timeouts, unsigned char *abuf, int alen)
-{
- struct qquery *qquery = (struct qquery *) arg;
- unsigned int ancount;
- int rcode;
-
- if (status != ARES_SUCCESS)
- qquery->callback(qquery->arg, status, timeouts, abuf, alen);
- else
- {
- /* Pull the response code and answer count from the packet. */
- rcode = DNS_HEADER_RCODE(abuf);
- ancount = DNS_HEADER_ANCOUNT(abuf);
-
- /* Convert errors. */
- switch (rcode)
- {
- case NOERROR:
- status = (ancount > 0) ? ARES_SUCCESS : ARES_ENODATA;
- break;
- case FORMERR:
- status = ARES_EFORMERR;
- break;
- case SERVFAIL:
- status = ARES_ESERVFAIL;
- break;
- case NXDOMAIN:
- status = ARES_ENOTFOUND;
- break;
- case NOTIMP:
- status = ARES_ENOTIMP;
- break;
- case REFUSED:
- status = ARES_EREFUSED;
- break;
- }
- qquery->callback(qquery->arg, status, timeouts, abuf, alen);
- }
- free(qquery);
-}
+++ /dev/null
-#ifndef __CARES_RULES_H
-#define __CARES_RULES_H
-
-
-/* Copyright (C) 2009 by Daniel Stenberg et al
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-/* ================================================================ */
-/* COMPILE TIME SANITY CHECKS */
-/* ================================================================ */
-
-/*
- * NOTE 1:
- * -------
- *
- * All checks done in this file are intentionally placed in a public
- * header file which is pulled by ares.h when an application is
- * being built using an already built c-ares library. Additionally
- * this file is also included and used when building the library.
- *
- * If compilation fails on this file it is certainly sure that the
- * problem is elsewhere. It could be a problem in the ares_build.h
- * header file, or simply that you are using different compilation
- * settings than those used to build the library.
- *
- * Nothing in this file is intended to be modified or adjusted by the
- * c-ares library user nor by the c-ares library builder.
- *
- * Do not deactivate any check, these are done to make sure that the
- * library is properly built and used.
- *
- * You can find further help on the c-ares development mailing list:
- * http://cool.haxx.se/mailman/listinfo/c-ares/
- *
- * NOTE 2
- * ------
- *
- * Some of the following compile time checks are based on the fact
- * that the dimension of a constant array can not be a negative one.
- * In this way if the compile time verification fails, the compilation
- * will fail issuing an error. The error description wording is compiler
- * dependent but it will be quite similar to one of the following:
- *
- * "negative subscript or subscript is too large"
- * "array must have at least one element"
- * "-1 is an illegal array size"
- * "size of array is negative"
- *
- * If you are building an application which tries to use an already
- * built c-ares library and you are getting this kind of errors on
- * this file, it is a clear indication that there is a mismatch between
- * how the library was built and how you are trying to use it for your
- * application. Your already compiled or binary library provider is the
- * only one who can give you the details you need to properly use it.
- */
-
-/*
- * Verify that some macros are actually defined.
- */
-
-#ifndef CARES_SIZEOF_LONG
-# error "CARES_SIZEOF_LONG definition is missing!"
- Error Compilation_aborted_CARES_SIZEOF_LONG_is_missing
-#endif
-
-#ifndef CARES_TYPEOF_ARES_SOCKLEN_T
-# error "CARES_TYPEOF_ARES_SOCKLEN_T definition is missing!"
- Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_is_missing
-#endif
-
-#ifndef CARES_SIZEOF_ARES_SOCKLEN_T
-# error "CARES_SIZEOF_ARES_SOCKLEN_T definition is missing!"
- Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_is_missing
-#endif
-
-/*
- * Macros private to this header file.
- */
-
-#define CareschkszEQ(t, s) sizeof(t) == s ? 1 : -1
-
-#define CareschkszGE(t1, t2) sizeof(t1) >= sizeof(t2) ? 1 : -1
-
-/*
- * Verify that the size previously defined and expected for long
- * is the same as the one reported by sizeof() at compile time.
- */
-
-typedef char
- __cares_rule_01__
- [CareschkszEQ(long, CARES_SIZEOF_LONG)];
-
-/*
- * Verify that the size previously defined and expected for
- * ares_socklen_t is actually the the same as the one reported
- * by sizeof() at compile time.
- */
-
-typedef char
- __cares_rule_02__
- [CareschkszEQ(ares_socklen_t, CARES_SIZEOF_ARES_SOCKLEN_T)];
-
-/*
- * Verify at compile time that the size of ares_socklen_t as reported
- * by sizeof() is greater or equal than the one reported for int for
- * the current compilation.
- */
-
-typedef char
- __cares_rule_03__
- [CareschkszGE(ares_socklen_t, int)];
-
-/* ================================================================ */
-/* EXTERNALLY AND INTERNALLY VISIBLE DEFINITIONS */
-/* ================================================================ */
-
-/*
- * Get rid of macros private to this header file.
- */
-
-#undef CareschkszEQ
-#undef CareschkszGE
-
-/*
- * Get rid of macros not intended to exist beyond this point.
- */
-
-#undef CARES_PULL_WS2TCPIP_H
-#undef CARES_PULL_SYS_TYPES_H
-#undef CARES_PULL_SYS_SOCKET_H
-
-#undef CARES_TYPEOF_ARES_SOCKLEN_T
-
-#endif /* __CARES_RULES_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-
-#include "ares.h"
-#include "ares_private.h"
-
-struct search_query {
- /* Arguments passed to ares_search */
- ares_channel channel;
- char *name; /* copied into an allocated buffer */
- int dnsclass;
- int type;
- ares_callback callback;
- void *arg;
-
- int status_as_is; /* error status from trying as-is */
- int next_domain; /* next search domain to try */
- int trying_as_is; /* current query is for name as-is */
- int timeouts; /* number of timeouts we saw for this request */
- int ever_got_nodata; /* did we ever get ARES_ENODATA along the way? */
-};
-
-static void search_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen);
-static void end_squery(struct search_query *squery, int status,
- unsigned char *abuf, int alen);
-static int cat_domain(const char *name, const char *domain, char **s);
-static int single_domain(ares_channel channel, const char *name, char **s);
-
-void ares_search(ares_channel channel, const char *name, int dnsclass,
- int type, ares_callback callback, void *arg)
-{
- struct search_query *squery;
- char *s;
- const char *p;
- int status, ndots;
-
- /* If name only yields one domain to search, then we don't have
- * to keep extra state, so just do an ares_query().
- */
- status = single_domain(channel, name, &s);
- if (status != ARES_SUCCESS)
- {
- callback(arg, status, 0, NULL, 0);
- return;
- }
- if (s)
- {
- ares_query(channel, s, dnsclass, type, callback, arg);
- free(s);
- return;
- }
-
- /* Allocate a search_query structure to hold the state necessary for
- * doing multiple lookups.
- */
- squery = malloc(sizeof(struct search_query));
- if (!squery)
- {
- callback(arg, ARES_ENOMEM, 0, NULL, 0);
- return;
- }
- squery->channel = channel;
- squery->name = strdup(name);
- if (!squery->name)
- {
- free(squery);
- callback(arg, ARES_ENOMEM, 0, NULL, 0);
- return;
- }
- squery->dnsclass = dnsclass;
- squery->type = type;
- squery->status_as_is = -1;
- squery->callback = callback;
- squery->arg = arg;
- squery->timeouts = 0;
- squery->ever_got_nodata = 0;
-
- /* Count the number of dots in name. */
- ndots = 0;
- for (p = name; *p; p++)
- {
- if (*p == '.')
- ndots++;
- }
-
- /* If ndots is at least the channel ndots threshold (usually 1),
- * then we try the name as-is first. Otherwise, we try the name
- * as-is last.
- */
- if (ndots >= channel->ndots)
- {
- /* Try the name as-is first. */
- squery->next_domain = 0;
- squery->trying_as_is = 1;
- ares_query(channel, name, dnsclass, type, search_callback, squery);
- }
- else
- {
- /* Try the name as-is last; start with the first search domain. */
- squery->next_domain = 1;
- squery->trying_as_is = 0;
- status = cat_domain(name, channel->domains[0], &s);
- if (status == ARES_SUCCESS)
- {
- ares_query(channel, s, dnsclass, type, search_callback, squery);
- free(s);
- }
- else
- {
- /* failed, free the malloc()ed memory */
- free(squery->name);
- free(squery);
- callback(arg, status, 0, NULL, 0);
- }
- }
-}
-
-static void search_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen)
-{
- struct search_query *squery = (struct search_query *) arg;
- ares_channel channel = squery->channel;
- char *s;
-
- squery->timeouts += timeouts;
-
- /* Stop searching unless we got a non-fatal error. */
- if (status != ARES_ENODATA && status != ARES_ESERVFAIL
- && status != ARES_ENOTFOUND)
- end_squery(squery, status, abuf, alen);
- else
- {
- /* Save the status if we were trying as-is. */
- if (squery->trying_as_is)
- squery->status_as_is = status;
-
- /*
- * If we ever get ARES_ENODATA along the way, record that; if the search
- * should run to the very end and we got at least one ARES_ENODATA,
- * then callers like ares_gethostbyname() may want to try a T_A search
- * even if the last domain we queried for T_AAAA resource records
- * returned ARES_ENOTFOUND.
- */
- if (status == ARES_ENODATA)
- squery->ever_got_nodata = 1;
-
- if (squery->next_domain < channel->ndomains)
- {
- /* Try the next domain. */
- status = cat_domain(squery->name,
- channel->domains[squery->next_domain], &s);
- if (status != ARES_SUCCESS)
- end_squery(squery, status, NULL, 0);
- else
- {
- squery->trying_as_is = 0;
- squery->next_domain++;
- ares_query(channel, s, squery->dnsclass, squery->type,
- search_callback, squery);
- free(s);
- }
- }
- else if (squery->status_as_is == -1)
- {
- /* Try the name as-is at the end. */
- squery->trying_as_is = 1;
- ares_query(channel, squery->name, squery->dnsclass, squery->type,
- search_callback, squery);
- }
- else {
- if (squery->status_as_is == ARES_ENOTFOUND && squery->ever_got_nodata) {
- end_squery(squery, ARES_ENODATA, NULL, 0);
- }
- else
- end_squery(squery, squery->status_as_is, NULL, 0);
- }
- }
-}
-
-static void end_squery(struct search_query *squery, int status,
- unsigned char *abuf, int alen)
-{
- squery->callback(squery->arg, status, squery->timeouts, abuf, alen);
- free(squery->name);
- free(squery);
-}
-
-/* Concatenate two domains. */
-static int cat_domain(const char *name, const char *domain, char **s)
-{
- size_t nlen = strlen(name);
- size_t dlen = strlen(domain);
-
- *s = malloc(nlen + 1 + dlen + 1);
- if (!*s)
- return ARES_ENOMEM;
- memcpy(*s, name, nlen);
- (*s)[nlen] = '.';
- memcpy(*s + nlen + 1, domain, dlen);
- (*s)[nlen + 1 + dlen] = 0;
- return ARES_SUCCESS;
-}
-
-/* Determine if this name only yields one query. If it does, set *s to
- * the string we should query, in an allocated buffer. If not, set *s
- * to NULL.
- */
-static int single_domain(ares_channel channel, const char *name, char **s)
-{
- size_t len = strlen(name);
- const char *hostaliases;
- FILE *fp;
- char *line = NULL;
- int status;
- size_t linesize;
- const char *p, *q;
- int error;
-
- /* If the name contains a trailing dot, then the single query is the name
- * sans the trailing dot.
- */
- if (name[len - 1] == '.')
- {
- *s = strdup(name);
- return (*s) ? ARES_SUCCESS : ARES_ENOMEM;
- }
-
- if (!(channel->flags & ARES_FLAG_NOALIASES) && !strchr(name, '.'))
- {
- /* The name might be a host alias. */
- hostaliases = getenv("HOSTALIASES");
- if (hostaliases)
- {
- fp = fopen(hostaliases, "r");
- if (fp)
- {
- while ((status = ares__read_line(fp, &line, &linesize))
- == ARES_SUCCESS)
- {
- if (strncasecmp(line, name, len) != 0 ||
- !ISSPACE(line[len]))
- continue;
- p = line + len;
- while (ISSPACE(*p))
- p++;
- if (*p)
- {
- q = p + 1;
- while (*q && !ISSPACE(*q))
- q++;
- *s = malloc(q - p + 1);
- if (*s)
- {
- memcpy(*s, p, q - p);
- (*s)[q - p] = 0;
- }
- free(line);
- fclose(fp);
- return (*s) ? ARES_SUCCESS : ARES_ENOMEM;
- }
- }
- free(line);
- fclose(fp);
- if (status != ARES_SUCCESS && status != ARES_EOF)
- return status;
- }
- else
- {
- error = errno;
- switch(error)
- {
- case ENOENT:
- case ESRCH:
- break;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n",
- hostaliases));
- *s = NULL;
- return ARES_EFILE;
- }
- }
- }
- }
-
- if (channel->flags & ARES_FLAG_NOSEARCH || channel->ndomains == 0)
- {
- /* No domain search to do; just try the name as-is. */
- *s = strdup(name);
- return (*s) ? ARES_SUCCESS : ARES_ENOMEM;
- }
-
- *s = NULL;
- return ARES_SUCCESS;
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include "ares.h"
-#include "ares_dns.h"
-#include "ares_private.h"
-
-void ares_send(ares_channel channel, const unsigned char *qbuf, int qlen,
- ares_callback callback, void *arg)
-{
- struct query *query;
- int i;
- struct timeval now;
-
- /* Verify that the query is at least long enough to hold the header. */
- if (qlen < HFIXEDSZ || qlen >= (1 << 16))
- {
- callback(arg, ARES_EBADQUERY, 0, NULL, 0);
- return;
- }
-
- /* Allocate space for query and allocated fields. */
- query = malloc(sizeof(struct query));
- if (!query)
- {
- callback(arg, ARES_ENOMEM, 0, NULL, 0);
- return;
- }
- query->tcpbuf = malloc(qlen + 2);
- if (!query->tcpbuf)
- {
- free(query);
- callback(arg, ARES_ENOMEM, 0, NULL, 0);
- return;
- }
- query->server_info = malloc(channel->nservers *
- sizeof(query->server_info[0]));
- if (!query->server_info)
- {
- free(query->tcpbuf);
- free(query);
- callback(arg, ARES_ENOMEM, 0, NULL, 0);
- return;
- }
-
- /* Compute the query ID. Start with no timeout. */
- query->qid = (unsigned short)DNS_HEADER_QID(qbuf);
- query->timeout.tv_sec = 0;
- query->timeout.tv_usec = 0;
-
- /* Form the TCP query buffer by prepending qlen (as two
- * network-order bytes) to qbuf.
- */
- query->tcpbuf[0] = (unsigned char)((qlen >> 8) & 0xff);
- query->tcpbuf[1] = (unsigned char)(qlen & 0xff);
- memcpy(query->tcpbuf + 2, qbuf, qlen);
- query->tcplen = qlen + 2;
-
- /* Fill in query arguments. */
- query->qbuf = query->tcpbuf + 2;
- query->qlen = qlen;
- query->callback = callback;
- query->arg = arg;
-
- /* Initialize query status. */
- query->try = 0;
-
- /* Choose the server to send the query to. If rotation is enabled, keep track
- * of the next server we want to use. */
- query->server = channel->last_server;
- if (channel->rotate == 1)
- channel->last_server = (channel->last_server + 1) % channel->nservers;
-
- for (i = 0; i < channel->nservers; i++)
- {
- query->server_info[i].skip_server = 0;
- query->server_info[i].tcp_connection_generation = 0;
- }
- query->using_tcp = (channel->flags & ARES_FLAG_USEVC) || qlen > PACKETSZ;
- query->error_status = ARES_ECONNREFUSED;
- query->timeouts = 0;
-
- /* Initialize our list nodes. */
- ares__init_list_node(&(query->queries_by_qid), query);
- ares__init_list_node(&(query->queries_by_timeout), query);
- ares__init_list_node(&(query->queries_to_server), query);
- ares__init_list_node(&(query->all_queries), query);
-
- /* Chain the query into the list of all queries. */
- ares__insert_in_list(&(query->all_queries), &(channel->all_queries));
- /* Keep track of queries bucketed by qid, so we can process DNS
- * responses quickly.
- */
- ares__insert_in_list(
- &(query->queries_by_qid),
- &(channel->queries_by_qid[query->qid % ARES_QID_TABLE_SIZE]));
-
- /* Perform the first query action. */
- now = ares__tvnow();
- ares__send_query(channel, query, &now);
-}
+++ /dev/null
-#ifndef HEADER_CARES_SETUP_H
-#define HEADER_CARES_SETUP_H
-
-/* $Id$ */
-
-/* Copyright (C) 2004 - 2009 by Daniel Stenberg et al
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-/*
- * Define WIN32 when build target is Win32 API
- */
-
-#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
-#define WIN32
-#endif
-
-/*
- * Include configuration script results or hand-crafted
- * configuration file for platforms which lack config tool.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "ares_config.h"
-#else
-
-#ifdef WIN32
-#include "config-win32.h"
-#endif
-
-#endif /* HAVE_CONFIG_H */
-
-/* ================================================================ */
-/* Definition of preprocessor macros/symbols which modify compiler */
-/* behaviour or generated code characteristics must be done here, */
-/* as appropriate, before any system header file is included. It is */
-/* also possible to have them defined in the config file included */
-/* before this point. As a result of all this we frown inclusion of */
-/* system header files in our config files, avoid this at any cost. */
-/* ================================================================ */
-
-/*
- * AIX 4.3 and newer needs _THREAD_SAFE defined to build
- * proper reentrant code. Others may also need it.
- */
-
-#ifdef NEED_THREAD_SAFE
-# ifndef _THREAD_SAFE
-# define _THREAD_SAFE
-# endif
-#endif
-
-/*
- * Tru64 needs _REENTRANT set for a few function prototypes and
- * things to appear in the system header files. Unixware needs it
- * to build proper reentrant code. Others may also need it.
- */
-
-#ifdef NEED_REENTRANT
-# ifndef _REENTRANT
-# define _REENTRANT
-# endif
-#endif
-
-/* ================================================================ */
-/* If you need to include a system header file for your platform, */
-/* please, do it beyond the point further indicated in this file. */
-/* ================================================================ */
-
-#if 0 /* libuv disabled */
-/*
- * c-ares external interface definitions are also used internally,
- * and might also include required system header files to define them.
- */
-
-#include <ares_build.h>
-
-/*
- * Compile time sanity checks must also be done when building the library.
- */
-
-#include <ares_rules.h>
-#endif
-
-/* ================================================================= */
-/* No system header file shall be included in this file before this */
-/* point. The only allowed ones are those included from ares_build.h */
-/* ================================================================= */
-
-/*
- * Include header files for windows builds before redefining anything.
- * Use this preproessor block only to include or exclude windows.h,
- * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
- * to any other further and independent block. Under Cygwin things work
- * just as under linux (e.g. <sys/socket.h>) and the winsock headers should
- * never be included when __CYGWIN__ is defined. configure script takes
- * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
- * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
- */
-
-#ifdef HAVE_WINDOWS_H
-# ifdef HAVE_WINSOCK2_H
-# include <winsock2.h>
-# ifdef HAVE_WS2TCPIP_H
-# include <ws2tcpip.h>
-# endif
-# else
-# ifdef HAVE_WINSOCK_H
-# include <winsock.h>
-# endif
-# endif
-# include <windows.h>
-#endif
-
-/*
- * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
- * define USE_WINSOCK to 1 if we have and use WINSOCK API, else
- * undefine USE_WINSOCK.
- */
-
-#undef USE_WINSOCK
-
-#ifdef HAVE_WINSOCK2_H
-# define USE_WINSOCK 2
-#else
-# ifdef HAVE_WINSOCK_H
-# define USE_WINSOCK 1
-# endif
-#endif
-
-/*
- * Work-arounds for systems without configure support
- */
-
-#ifndef HAVE_CONFIG_H
-
-#if !defined(HAVE_SYS_TIME_H) && !defined(_MSC_VER) && !defined(__WATCOMC__)
-#define HAVE_SYS_TIME_H
-#endif
-
-#if !defined(HAVE_UNISTD_H) && !defined(_MSC_VER)
-#define HAVE_UNISTD_H 1
-#endif
-
-#if !defined(HAVE_SYS_UIO_H) && !defined(WIN32) && !defined(MSDOS)
-#define HAVE_SYS_UIO_H
-#endif
-
-#endif /* HAVE_CONFIG_H */
-
-#ifdef __POCC__
-# include <sys/types.h>
-# include <unistd.h>
-# define ESRCH 3
-#endif
-
-/*
- * Recent autoconf versions define these symbols in ares_config.h. We don't
- * want them (since they collide with the libcurl ones when we build
- * --enable-debug) so we undef them again here.
- */
-
-#undef PACKAGE_STRING
-#undef PACKAGE_TARNAME
-#undef PACKAGE_VERSION
-#undef PACKAGE_BUGREPORT
-#undef PACKAGE_NAME
-#undef VERSION
-#undef PACKAGE
-
-/* IPv6 compatibility */
-#if !defined(HAVE_AF_INET6)
-#if defined(HAVE_PF_INET6)
-#define AF_INET6 PF_INET6
-#else
-#define AF_INET6 AF_MAX+1
-#endif
-#endif
-
-/*
- * Include macros and defines that should only be processed once.
- */
-
-#ifndef __SETUP_ONCE_H
-#include "setup_once.h"
-#endif
-
-#endif /* HEADER_CARES_SETUP_H */
+++ /dev/null
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include "ares_strcasecmp.h"
-
-#ifndef HAVE_STRCASECMP
-int ares_strcasecmp(const char *a, const char *b)
-{
-#if defined(HAVE_STRCMPI)
- return strcmpi(a, b);
-#elif defined(HAVE_STRICMP)
- return stricmp(a, b);
-#else
- size_t i;
-
- for (i = 0; i < (size_t)-1; i++) {
- int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
- int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
- if (c1 != c2)
- return c1-c2;
- if (!c1)
- break;
- }
- return 0;
-#endif
-}
-#endif
-
-#ifndef HAVE_STRNCASECMP
-int ares_strncasecmp(const char *a, const char *b, size_t n)
-{
-#if defined(HAVE_STRNCMPI)
- return strncmpi(a, b, n);
-#elif defined(HAVE_STRNICMP)
- return strnicmp(a, b, n);
-#else
- size_t i;
-
- for (i = 0; i < n; i++) {
- int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
- int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
- if (c1 != c2)
- return c1-c2;
- if (!c1)
- break;
- }
- return 0;
-#endif
-}
-#endif
-
+++ /dev/null
-#ifndef HEADER_CARES_STRCASECMP_H
-#define HEADER_CARES_STRCASECMP_H
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifndef HAVE_STRCASECMP
-extern int ares_strcasecmp(const char *a, const char *b);
-#endif
-
-#ifndef HAVE_STRNCASECMP
-extern int ares_strncasecmp(const char *a, const char *b, size_t n);
-#endif
-
-#endif /* HEADER_CARES_STRCASECMP_H */
+++ /dev/null
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include "ares_strdup.h"
-
-#ifndef HAVE_STRDUP
-char *ares_strdup(const char *s1)
-{
- size_t sz;
- char * s2;
-
- if(s1) {
- sz = strlen(s1);
- if(sz < (size_t)-1) {
- sz++;
- if(sz < ((size_t)-1) / sizeof(char)) {
- s2 = malloc(sz * sizeof(char));
- if(s2) {
- memcpy(s2, s1, sz * sizeof(char));
- return s2;
- }
- }
- }
- }
- return (char *)NULL;
-}
-#endif
+++ /dev/null
-#ifndef HEADER_CARES_STRDUP_H
-#define HEADER_CARES_STRDUP_H
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifndef HAVE_STRDUP
-extern char *ares_strdup(const char *s1);
-#endif
-
-#endif /* HEADER_CARES_STRDUP_H */
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include <assert.h>
-#include "ares.h"
-
-const char *ares_strerror(int code)
-{
- /* Return a string literal from a table. */
- const char *errtext[] = {
- "Successful completion",
- "DNS server returned answer with no data",
- "DNS server claims query was misformatted",
- "DNS server returned general failure",
- "Domain name not found",
- "DNS server does not implement requested operation",
- "DNS server refused query",
- "Misformatted DNS query",
- "Misformatted domain name",
- "Unsupported address family",
- "Misformatted DNS reply",
- "Could not contact DNS servers",
- "Timeout while contacting DNS servers",
- "End of file",
- "Error reading file",
- "Out of memory",
- "Channel is being destroyed",
- "Misformatted string",
- "Illegal flags specified",
- "Given hostname is not numeric",
- "Illegal hints flags specified",
- "c-ares library initialization not yet performed",
- "Error loading iphlpapi.dll",
- "Could not find GetNetworkParams function",
- "DNS query cancelled"
- };
-
- if(code >= 0 && code < (int)(sizeof(errtext) / sizeof(*errtext)))
- return errtext[code];
- else
- return "unknown";
-}
+++ /dev/null
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-
-#include <time.h>
-
-#include "ares.h"
-#include "ares_private.h"
-
-/* WARNING: Beware that this is linear in the number of outstanding
- * requests! You are probably far better off just calling ares_process()
- * once per second, rather than calling ares_timeout() to figure out
- * when to next call ares_process().
- */
-struct timeval *ares_timeout(ares_channel channel, struct timeval *maxtv,
- struct timeval *tvbuf)
-{
- struct query *query;
- struct list_node* list_head;
- struct list_node* list_node;
- struct timeval now;
- struct timeval nextstop;
- long offset, min_offset;
-
- /* No queries, no timeout (and no fetch of the current time). */
- if (ares__is_list_empty(&(channel->all_queries)))
- return maxtv;
-
- /* Find the minimum timeout for the current set of queries. */
- now = ares__tvnow();
- min_offset = -1;
-
- list_head = &(channel->all_queries);
- for (list_node = list_head->next; list_node != list_head;
- list_node = list_node->next)
- {
- query = list_node->data;
- if (query->timeout.tv_sec == 0)
- continue;
- offset = ares__timeoffset(&now, &query->timeout);
- if (offset < 0)
- offset = 0;
- if (min_offset == -1 || offset < min_offset)
- min_offset = offset;
- }
-
- if(min_offset != -1) {
- nextstop.tv_sec = min_offset/1000;
- nextstop.tv_usec = (min_offset%1000)*1000;
- }
-
- /* If we found a minimum timeout and it's sooner than the one specified in
- * maxtv (if any), return it. Otherwise go with maxtv.
- */
- if (min_offset != -1 && (!maxtv || ares__timedout(maxtv, &nextstop)))
- {
- *tvbuf = nextstop;
- return tvbuf;
- }
- else
- return maxtv;
-}
+++ /dev/null
-
-#include "ares_setup.h"
-#include "ares.h"
-
-const char *ares_version(int *version)
-{
- if(version)
- *version = ARES_VERSION;
-
- return ARES_VERSION_STR;
-}
+++ /dev/null
-
-#ifndef ARES__VERSION_H
-#define ARES__VERSION_H
-
-/* This is the global package copyright */
-#define ARES_COPYRIGHT "2004 - 2010 Daniel Stenberg, <daniel@haxx.se>."
-
-#define ARES_VERSION_MAJOR 1
-#define ARES_VERSION_MINOR 7
-#define ARES_VERSION_PATCH 4
-#define ARES_VERSION ((ARES_VERSION_MAJOR<<16)|\
- (ARES_VERSION_MINOR<<8)|\
- (ARES_VERSION_PATCH))
-#define ARES_VERSION_STR "1.7.4"
-
-#if (ARES_VERSION >= 0x010700)
-# define CARES_HAVE_ARES_LIBRARY_INIT 1
-# define CARES_HAVE_ARES_LIBRARY_CLEANUP 1
-#else
-# undef CARES_HAVE_ARES_LIBRARY_INIT
-# undef CARES_HAVE_ARES_LIBRARY_CLEANUP
-#endif
-
-#endif
+++ /dev/null
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#include "ares.h"
-#include "ares_private.h"
-
-#ifndef HAVE_WRITEV
-ssize_t ares_writev(ares_socket_t s, const struct iovec *iov, int iovcnt)
-{
- char *buffer, *bp;
- int i;
- size_t bytes = 0;
- ssize_t result;
-
- /* Validate iovcnt */
- if (iovcnt <= 0)
- {
- SET_ERRNO(EINVAL);
- return (-1);
- }
-
- /* Validate and find the sum of the iov_len values in the iov array */
- for (i = 0; i < iovcnt; i++)
- {
- if (iov[i].iov_len > INT_MAX - bytes)
- {
- SET_ERRNO(EINVAL);
- return (-1);
- }
- bytes += iov[i].iov_len;
- }
-
- if (bytes == 0)
- return (0);
-
- /* Allocate a temporary buffer to hold the data */
- buffer = malloc(bytes);
- if (!buffer)
- {
- SET_ERRNO(ENOMEM);
- return (-1);
- }
-
- /* Copy the data into buffer */
- for (bp = buffer, i = 0; i < iovcnt; ++i)
- {
- memcpy (bp, iov[i].iov_base, iov[i].iov_len);
- bp += iov[i].iov_len;
- }
-
- /* Send buffer contents */
- result = swrite(s, buffer, bytes);
-
- free(buffer);
-
- return (result);
-}
-#endif
-
+++ /dev/null
-#ifndef HEADER_CARES_WRITEV_H
-#define HEADER_CARES_WRITEV_H
-
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#include "ares_setup.h"
-#include "ares.h"
-
-#ifndef HAVE_WRITEV
-
-/* Structure for scatter/gather I/O. */
-struct iovec
-{
- void *iov_base; /* Pointer to data. */
- size_t iov_len; /* Length of data. */
-};
-
-extern ssize_t ares_writev(ares_socket_t s, const struct iovec *iov, int iovcnt);
-
-#endif
-
-#endif /* HEADER_CARES_WRITEV_H */
+++ /dev/null
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1996,1999 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
- * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef HAVE_BITNCMP
-
-#include "ares_setup.h"
-#include "bitncmp.h"
-
-/*
- * int
- * bitncmp(l, r, n)
- * compare bit masks l and r, for n bits.
- * return:
- * -1, 1, or 0 in the libc tradition.
- * note:
- * network byte order assumed. this means 192.5.5.240/28 has
- * 0x11110000 in its fourth octet.
- * author:
- * Paul Vixie (ISC), June 1996
- */
-int
-ares_bitncmp(const void *l, const void *r, int n) {
- unsigned int lb, rb;
- int x, b;
-
- b = n / 8;
- x = memcmp(l, r, b);
- if (x || (n % 8) == 0)
- return (x);
-
- lb = ((const unsigned char *)l)[b];
- rb = ((const unsigned char *)r)[b];
- for (b = n % 8; b > 0; b--) {
- if ((lb & 0x80) != (rb & 0x80)) {
- if (lb & 0x80)
- return (1);
- return (-1);
- }
- lb <<= 1;
- rb <<= 1;
- }
- return (0);
-}
-#endif
+++ /dev/null
-#ifndef __ARES_BITNCMP_H
-#define __ARES_BITNCMP_H
-
-
-/* Copyright (C) 2005 by Dominick Meglio
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#ifndef HAVE_BITNCMP
-int ares_bitncmp(const void *l, const void *r, int n);
-#else
-#define ares_bitncmp(x,y,z) bitncmp(x,y,z)
-#endif
-
-#endif /* __ARES_BITNCMP_H */
+++ /dev/null
-#ifndef __ARES_CONFIG_WIN32_H
-#define __ARES_CONFIG_WIN32_H
-
-
-/* Copyright (C) 2004 - 2008 by Daniel Stenberg et al
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-/* ================================================================ */
-/* ares/config-win32.h - Hand crafted config file for Windows */
-/* ================================================================ */
-
-/* ---------------------------------------------------------------- */
-/* HEADER FILES */
-/* ---------------------------------------------------------------- */
-
-/* Define if you have the <getopt.h> header file. */
-#if defined(__MINGW32__) || defined(__POCC__)
-#define HAVE_GETOPT_H 1
-#endif
-
-/* Define if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* Define if you have the <process.h> header file. */
-#ifndef __SALFORDC__
-#define HAVE_PROCESS_H 1
-#endif
-
-/* Define if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define if you have the <sys/time.h> header file */
-/* #define HAVE_SYS_TIME_H 1 */
-
-/* Define if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define if you have the <unistd.h> header file. */
-#if defined(__MINGW32__) || defined(__WATCOMC__) || defined(__LCC__) || \
- defined(__POCC__)
-#define HAVE_UNISTD_H 1
-#endif
-
-/* Define if you have the <winsock.h> header file. */
-#define HAVE_WINSOCK_H 1
-
-/* Define if you have the <winsock2.h> header file. */
-#ifndef __SALFORDC__
-#define HAVE_WINSOCK2_H 1
-#endif
-
-/* Define if you have the <ws2tcpip.h> header file. */
-#ifndef __SALFORDC__
-#define HAVE_WS2TCPIP_H 1
-#endif
-
-/* ---------------------------------------------------------------- */
-/* OTHER HEADER INFO */
-/* ---------------------------------------------------------------- */
-
-/* Define if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define if you can safely include both <sys/time.h> and <time.h>. */
-/* #define TIME_WITH_SYS_TIME 1 */
-
-/* ---------------------------------------------------------------- */
-/* FUNCTIONS */
-/* ---------------------------------------------------------------- */
-
-/* Define if you have the closesocket function. */
-#define HAVE_CLOSESOCKET 1
-
-/* Define if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define if you have the ioctlsocket function. */
-#define HAVE_IOCTLSOCKET 1
-
-/* Define if you have a working ioctlsocket FIONBIO function. */
-#define HAVE_IOCTLSOCKET_FIONBIO 1
-
-/* Define if you have the strcasecmp function. */
-/* #define HAVE_STRCASECMP 1 */
-
-/* Define if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define if you have the stricmp function. */
-#define HAVE_STRICMP 1
-
-/* Define if you have the strncasecmp function. */
-/* #define HAVE_STRNCASECMP 1 */
-
-/* Define if you have the strnicmp function. */
-#define HAVE_STRNICMP 1
-
-/* Define if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 SOCKET
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 char *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 int
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 SOCKET
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 char
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 int
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 int
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 SOCKET
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 char *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 int
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* Specifics for the Watt-32 tcp/ip stack */
-#ifdef WATT32
- #define SOCKET int
- #define NS_INADDRSZ 4
- #define HAVE_ARPA_NAMESER_H 1
- #define HAVE_ARPA_INET_H 1
- #define HAVE_NETDB_H 1
- #define HAVE_NETINET_IN_H 1
- #define HAVE_SYS_SOCKET_H 1
- #define HAVE_NETINET_TCP_H 1
- #define HAVE_AF_INET6 1
- #define HAVE_PF_INET6 1
- #define HAVE_STRUCT_IN6_ADDR 1
- #define HAVE_STRUCT_SOCKADDR_IN6 1
- #undef HAVE_WINSOCK_H
- #undef HAVE_WINSOCK2_H
- #undef HAVE_WS2TCPIP_H
-#endif
-
-/* ---------------------------------------------------------------- */
-/* TYPEDEF REPLACEMENTS */
-/* ---------------------------------------------------------------- */
-
-/* Define this if in_addr_t is not an available 'typedefed' type */
-#define in_addr_t unsigned long
-
-/* Define as the return type of signal handlers (int or void). */
-#define RETSIGTYPE void
-
-/* Define ssize_t if it is not an available 'typedefed' type */
-#ifndef _SSIZE_T_DEFINED
-# if (defined(__WATCOMC__) && (__WATCOMC__ >= 1240)) || \
- defined(__POCC__) || \
- defined(__MINGW32__)
-# elif defined(_WIN64)
-# define _SSIZE_T_DEFINED
-# define ssize_t __int64
-# else
-# define _SSIZE_T_DEFINED
-# define ssize_t int
-# endif
-#endif
-
-/* ---------------------------------------------------------------- */
-/* TYPE SIZES */
-/* ---------------------------------------------------------------- */
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `short', as computed by sizeof. */
-#define SIZEOF_SHORT 2
-
-/* The size of `size_t', as computed by sizeof. */
-#if defined(_WIN64)
-# define SIZEOF_SIZE_T 8
-#else
-# define SIZEOF_SIZE_T 4
-#endif
-
-/* ---------------------------------------------------------------- */
-/* STRUCT RELATED */
-/* ---------------------------------------------------------------- */
-
-/* Define this if you have struct addrinfo */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define this if you have struct sockaddr_storage */
-#ifndef __SALFORDC__
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-#endif
-
-/* Define this if you have struct timeval */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* ---------------------------------------------------------------- */
-/* COMPILER SPECIFIC */
-/* ---------------------------------------------------------------- */
-
-/* Define to avoid VS2005 complaining about portable C functions */
-#if defined(_MSC_VER) && (_MSC_VER >= 1400)
-#define _CRT_SECURE_NO_DEPRECATE 1
-#define _CRT_NONSTDC_NO_DEPRECATE 1
-#endif
-
-/* Officially, Microsoft's Windows SDK versions 6.X do not support Windows
- 2000 as a supported build target. VS2008 default installations provide an
- embedded Windows SDK v6.0A along with the claim that Windows 2000 is a
- valid build target for VS2008. Popular belief is that binaries built using
- Windows SDK versions 6.X and Windows 2000 as a build target are functional */
-#if defined(_MSC_VER) && (_MSC_VER >= 1500)
-# define VS2008_MINIMUM_TARGET 0x0500
-#endif
-
-/* When no build target is specified VS2008 default build target is Windows
- Vista, which leaves out even Winsows XP. If no build target has been given
- for VS2008 we will target the minimum Officially supported build target,
- which happens to be Windows XP. */
-#if defined(_MSC_VER) && (_MSC_VER >= 1500)
-# define VS2008_DEFAULT_TARGET 0x0501
-#endif
-
-/* VS2008 default target settings and minimum build target check */
-#if defined(_MSC_VER) && (_MSC_VER >= 1500)
-# ifndef _WIN32_WINNT
-# define _WIN32_WINNT VS2008_DEFAULT_TARGET
-# endif
-# ifndef WINVER
-# define WINVER VS2008_DEFAULT_TARGET
-# endif
-# if (_WIN32_WINNT < VS2008_MINIMUM_TARGET) || (WINVER < VS2008_MINIMUM_TARGET)
-# error VS2008 does not support Windows build targets prior to Windows 2000
-# endif
-#endif
-
-/* When no build target is specified Pelles C 5.00 and later default build
- target is Windows Vista. We override default target to be Windows 2000. */
-#if defined(__POCC__) && (__POCC__ >= 500)
-# ifndef _WIN32_WINNT
-# define _WIN32_WINNT 0x0500
-# endif
-# ifndef WINVER
-# define WINVER 0x0500
-# endif
-#endif
-
-/* Availability of freeaddrinfo, getaddrinfo and getnameinfo functions is
- quite convoluted, compiler dependent and even build target dependent. */
-#if defined(HAVE_WS2TCPIP_H)
-# if defined(__POCC__)
-# define HAVE_FREEADDRINFO 1
-# define HAVE_GETADDRINFO 1
-# define HAVE_GETNAMEINFO 1
-# elif defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
-# define HAVE_FREEADDRINFO 1
-# define HAVE_GETADDRINFO 1
-# define HAVE_GETNAMEINFO 1
-# elif defined(_MSC_VER) && (_MSC_VER >= 1200)
-# define HAVE_FREEADDRINFO 1
-# define HAVE_GETADDRINFO 1
-# define HAVE_GETNAMEINFO 1
-# endif
-#endif
-
-#if defined(__POCC__)
-# ifndef _MSC_VER
-# error Microsoft extensions /Ze compiler option is required
-# endif
-# ifndef __POCC__OLDNAMES
-# error Compatibility names /Go compiler option is required
-# endif
-#endif
-
-/* ---------------------------------------------------------------- */
-/* IPV6 COMPATIBILITY */
-/* ---------------------------------------------------------------- */
-
-/* Define this if you have address family AF_INET6 */
-#ifdef HAVE_WINSOCK2_H
-#define HAVE_AF_INET6 1
-#endif
-
-/* Define this if you have protocol family PF_INET6 */
-#ifdef HAVE_WINSOCK2_H
-#define HAVE_PF_INET6 1
-#endif
-
-/* Define this if you have struct in6_addr */
-#ifdef HAVE_WS2TCPIP_H
-#define HAVE_STRUCT_IN6_ADDR 1
-#endif
-
-/* Define this if you have struct sockaddr_in6 */
-#ifdef HAVE_WS2TCPIP_H
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-#endif
-
-/* Define this if you have sockaddr_in6 with scopeid */
-#ifdef HAVE_WS2TCPIP_H
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-#endif
-
-
-#endif /* __ARES_CONFIG_WIN32_H */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-/* #undef CARES_STATICLIB */
-
-/* Define to 1 to enable hiding of library internal symbols. */
-#define CARES_SYMBOL_HIDING 1
-
-/* Definition to make a library symbol externally visible. */
-#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((visibility ("default")))
-
-/* if a /etc/inet dir is being used */
-/* #undef ETC_INET */
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-#define GETNAMEINFO_QUAL_ARG1 const
-
-/* Define to the type of arg 1 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
-
-/* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 socklen_t
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG46 int
-
-/* Define to the type of arg 7 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG7 int
-
-/* Specifies the number of arguments to getservbyport_r */
-/* #undef GETSERVBYPORT_R_ARGS */
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-/* #undef GETSERVBYPORT_R_BUFSIZE */
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#define HAVE_ARPA_INET_H 1
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-#define HAVE_ARPA_NAMESER_COMPAT_H 1
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-#define HAVE_ARPA_NAMESER_H 1
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-/* #undef HAVE_CLOCK_GETTIME_MONOTONIC */
-
-/* Define to 1 if you have the closesocket function. */
-/* #undef HAVE_CLOSESOCKET */
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-#define HAVE_FCNTL 1
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-#define HAVE_FCNTL_O_NONBLOCK 1
-
-/* Define to 1 if you have the freeaddrinfo function. */
-#define HAVE_FREEADDRINFO 1
-
-/* Define to 1 if you have a working getaddrinfo function. */
-#define HAVE_GETADDRINFO 1
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-/* #undef HAVE_GETADDRINFO_THREADSAFE */
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-#define HAVE_GETNAMEINFO 1
-
-/* Define to 1 if you have the getservbyport_r function. */
-/* #undef HAVE_GETSERVBYPORT_R */
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-#define HAVE_IF_INDEXTONAME 1
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-/* #undef HAVE_INET_NET_PTON */
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-/* #undef HAVE_INET_NET_PTON_IPV6 */
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-#define HAVE_INET_NTOP 1
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-#define HAVE_INET_PTON 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-#define HAVE_IOCTL 1
-
-/* Define to 1 if you have the ioctlsocket function. */
-/* #undef HAVE_IOCTLSOCKET */
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-/* #undef HAVE_IOCTLSOCKET_FIONBIO */
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-#define HAVE_IOCTL_FIONBIO 1
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-#define HAVE_IOCTL_SIOCGIFADDR 1
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-#define HAVE_MALLOC_H 1
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-#define HAVE_MSG_NOSIGNAL 1
-
-/* Define to 1 if you have the <netdb.h> header file. */
-#define HAVE_NETDB_H 1
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#define HAVE_NETINET_IN_H 1
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-#define HAVE_NETINET_TCP_H 1
-
-/* Define to 1 if you have the <net/if.h> header file. */
-#define HAVE_NET_IF_H 1
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-/* #undef HAVE_STRCMPI */
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-/* #undef HAVE_STRICMP */
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-/* #undef HAVE_STROPTS_H */
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#define HAVE_SYS_SOCKET_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-#define HAVE_SYS_UIO_H 1
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Define to 1 if you have the winsock2.h header file. */
-/* #undef HAVE_WINSOCK2_H */
-
-/* Define to 1 if you have the winsock.h header file. */
-/* #undef HAVE_WINSOCK_H */
-
-/* Define to 1 if you have the writev function. */
-#define HAVE_WRITEV 1
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-/* #undef HAVE_WS2TCPIP_H */
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-/* #undef NATIVE_WINDOWS */
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-/* #undef NEED_REENTRANT */
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i686-pc-cygwin"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.1"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.1"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 int
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 void
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG2_IS_VOID 1
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 socklen_t
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.1"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-/* #undef _FILE_OFFSET_BITS */
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-/* #undef in_addr_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-/* #undef CARES_STATICLIB */
-
-/* Define to 1 to enable hiding of library internal symbols. */
-#define CARES_SYMBOL_HIDING 1
-
-/* Definition to make a library symbol externally visible. */
-#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((visibility ("default")))
-
-/* if a /etc/inet dir is being used */
-/* #undef ETC_INET */
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-#define GETNAMEINFO_QUAL_ARG1 const
-
-/* Define to the type of arg 1 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
-
-/* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 socklen_t
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG46 socklen_t
-
-/* Define to the type of arg 7 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG7 int
-
-/* Specifies the number of arguments to getservbyport_r */
-/* #undef GETSERVBYPORT_R_ARGS */
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-/* #undef GETSERVBYPORT_R_BUFSIZE */
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#define HAVE_ARPA_INET_H 1
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-#define HAVE_ARPA_NAMESER_COMPAT_H 1
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-#define HAVE_ARPA_NAMESER_H 1
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-/* #undef HAVE_CLOCK_GETTIME_MONOTONIC */
-
-/* Define to 1 if you have the closesocket function. */
-/* #undef HAVE_CLOSESOCKET */
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-#define HAVE_FCNTL 1
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-#define HAVE_FCNTL_O_NONBLOCK 1
-
-/* Define to 1 if you have the freeaddrinfo function. */
-#define HAVE_FREEADDRINFO 1
-
-/* Define to 1 if you have a working getaddrinfo function. */
-#define HAVE_GETADDRINFO 1
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-#define HAVE_GETADDRINFO_THREADSAFE 1
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-#define HAVE_GETNAMEINFO 1
-
-/* Define to 1 if you have the getservbyport_r function. */
-/* #undef HAVE_GETSERVBYPORT_R */
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-#define HAVE_IF_INDEXTONAME 1
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-#define HAVE_INET_NET_PTON 1
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-#define HAVE_INET_NET_PTON_IPV6 1
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-#define HAVE_INET_NTOP 1
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-#define HAVE_INET_PTON 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-#define HAVE_IOCTL 1
-
-/* Define to 1 if you have the ioctlsocket function. */
-/* #undef HAVE_IOCTLSOCKET */
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-/* #undef HAVE_IOCTLSOCKET_FIONBIO */
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-#define HAVE_IOCTL_FIONBIO 1
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-#define HAVE_IOCTL_SIOCGIFADDR 1
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-/* #undef HAVE_MALLOC_H */
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-/* #undef HAVE_MSG_NOSIGNAL */
-
-/* Define to 1 if you have the <netdb.h> header file. */
-#define HAVE_NETDB_H 1
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#define HAVE_NETINET_IN_H 1
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-#define HAVE_NETINET_TCP_H 1
-
-/* Define to 1 if you have the <net/if.h> header file. */
-#define HAVE_NET_IF_H 1
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-/* #undef HAVE_STRCMPI */
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-/* #undef HAVE_STRICMP */
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-/* #undef HAVE_STROPTS_H */
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#define HAVE_SYS_SOCKET_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-#define HAVE_SYS_UIO_H 1
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Define to 1 if you have the winsock2.h header file. */
-/* #undef HAVE_WINSOCK2_H */
-
-/* Define to 1 if you have the winsock.h header file. */
-/* #undef HAVE_WINSOCK_H */
-
-/* Define to 1 if you have the writev function. */
-#define HAVE_WRITEV 1
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-/* #undef HAVE_WS2TCPIP_H */
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-/* #undef NATIVE_WINDOWS */
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-/* #undef NEED_REENTRANT */
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i386-apple-darwin9.8.0"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.1"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.1"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 int
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 void
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG2_IS_VOID 1
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 socklen_t
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV ssize_t
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV ssize_t
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV ssize_t
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.1"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-/* #undef _FILE_OFFSET_BITS */
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-/* #undef in_addr_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-/* #undef CARES_STATICLIB */
-
-/* Define to 1 to enable hiding of library internal symbols. */
-#define CARES_SYMBOL_HIDING 1
-
-/* Definition to make a library symbol externally visible. */
-#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((visibility ("default")))
-
-/* if a /etc/inet dir is being used */
-/* #undef ETC_INET */
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-#define GETNAMEINFO_QUAL_ARG1 const
-
-/* Define to the type of arg 1 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
-
-/* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 socklen_t
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG46 size_t
-
-/* Define to the type of arg 7 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG7 int
-
-/* Specifies the number of arguments to getservbyport_r */
-#define GETSERVBYPORT_R_ARGS 6
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-#define GETSERVBYPORT_R_BUFSIZE 4096
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#define HAVE_ARPA_INET_H 1
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-#define HAVE_ARPA_NAMESER_COMPAT_H 1
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-#define HAVE_ARPA_NAMESER_H 1
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-#define HAVE_CLOCK_GETTIME_MONOTONIC 1
-
-/* Define to 1 if you have the closesocket function. */
-/* #undef HAVE_CLOSESOCKET */
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-#define HAVE_FCNTL 1
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-#define HAVE_FCNTL_O_NONBLOCK 1
-
-/* Define to 1 if you have the freeaddrinfo function. */
-#define HAVE_FREEADDRINFO 1
-
-/* Define to 1 if you have a working getaddrinfo function. */
-#define HAVE_GETADDRINFO 1
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-#define HAVE_GETADDRINFO_THREADSAFE 1
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-#define HAVE_GETNAMEINFO 1
-
-/* Define to 1 if you have the getservbyport_r function. */
-#define HAVE_GETSERVBYPORT_R 1
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-#define HAVE_IF_INDEXTONAME 1
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-#define HAVE_INET_NET_PTON 1
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-/* #undef HAVE_INET_NET_PTON_IPV6 */
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-#define HAVE_INET_NTOP 1
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-#define HAVE_INET_PTON 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-#define HAVE_IOCTL 1
-
-/* Define to 1 if you have the ioctlsocket function. */
-/* #undef HAVE_IOCTLSOCKET */
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-/* #undef HAVE_IOCTLSOCKET_FIONBIO */
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-#define HAVE_IOCTL_FIONBIO 1
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-#define HAVE_IOCTL_SIOCGIFADDR 1
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-/* #undef HAVE_MALLOC_H */
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-#define HAVE_MSG_NOSIGNAL 1
-
-/* Define to 1 if you have the <netdb.h> header file. */
-#define HAVE_NETDB_H 1
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#define HAVE_NETINET_IN_H 1
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-#define HAVE_NETINET_TCP_H 1
-
-/* Define to 1 if you have the <net/if.h> header file. */
-#define HAVE_NET_IF_H 1
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-/* #undef HAVE_STRCMPI */
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-/* #undef HAVE_STRICMP */
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-/* #undef HAVE_STROPTS_H */
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#define HAVE_SYS_SOCKET_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-#define HAVE_SYS_UIO_H 1
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Define to 1 if you have the winsock2.h header file. */
-/* #undef HAVE_WINSOCK2_H */
-
-/* Define to 1 if you have the winsock.h header file. */
-/* #undef HAVE_WINSOCK_H */
-
-/* Define to 1 if you have the writev function. */
-#define HAVE_WRITEV 1
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-/* #undef HAVE_WS2TCPIP_H */
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-/* #undef NATIVE_WINDOWS */
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-/* #undef NEED_REENTRANT */
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i386-portbld-freebsd8.0"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.1"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.1"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 int
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 void
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG2_IS_VOID 1
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 socklen_t
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.1"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-/* #undef _FILE_OFFSET_BITS */
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-/* #undef in_addr_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-/* #undef CARES_STATICLIB */
-
-/* Define to 1 to enable hiding of library internal symbols. */
-#define CARES_SYMBOL_HIDING 1
-
-/* Definition to make a library symbol externally visible. */
-#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((visibility ("default")))
-
-/* if a /etc/inet dir is being used */
-/* #undef ETC_INET */
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-#define GETNAMEINFO_QUAL_ARG1 const
-
-/* Define to the type of arg 1 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
-
-/* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 socklen_t
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG46 size_t
-
-/* Define to the type of arg 7 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG7 unsigned int
-
-/* Specifies the number of arguments to getservbyport_r */
-#define GETSERVBYPORT_R_ARGS 6
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-#define GETSERVBYPORT_R_BUFSIZE 4096
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#define HAVE_ARPA_INET_H 1
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-#define HAVE_ARPA_NAMESER_COMPAT_H 1
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-#define HAVE_ARPA_NAMESER_H 1
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-#define HAVE_CLOCK_GETTIME_MONOTONIC 1
-
-/* Define to 1 if you have the closesocket function. */
-/* #undef HAVE_CLOSESOCKET */
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-#define HAVE_FCNTL 1
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-#define HAVE_FCNTL_O_NONBLOCK 1
-
-/* Define to 1 if you have the freeaddrinfo function. */
-#define HAVE_FREEADDRINFO 1
-
-/* Define to 1 if you have a working getaddrinfo function. */
-#define HAVE_GETADDRINFO 1
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-#define HAVE_GETADDRINFO_THREADSAFE 1
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-#define HAVE_GETNAMEINFO 1
-
-/* Define to 1 if you have the getservbyport_r function. */
-#define HAVE_GETSERVBYPORT_R 1
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-#define HAVE_IF_INDEXTONAME 1
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-/* #undef HAVE_INET_NET_PTON */
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-/* #undef HAVE_INET_NET_PTON_IPV6 */
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-#define HAVE_INET_NTOP 1
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-#define HAVE_INET_PTON 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-#define HAVE_IOCTL 1
-
-/* Define to 1 if you have the ioctlsocket function. */
-/* #undef HAVE_IOCTLSOCKET */
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-/* #undef HAVE_IOCTLSOCKET_FIONBIO */
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-#define HAVE_IOCTL_FIONBIO 1
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-#define HAVE_IOCTL_SIOCGIFADDR 1
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-#define HAVE_MALLOC_H 1
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-#define HAVE_MSG_NOSIGNAL 1
-
-/* Define to 1 if you have the <netdb.h> header file. */
-#define HAVE_NETDB_H 1
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#define HAVE_NETINET_IN_H 1
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-#define HAVE_NETINET_TCP_H 1
-
-/* Define to 1 if you have the <net/if.h> header file. */
-#define HAVE_NET_IF_H 1
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-/* #undef HAVE_STRCMPI */
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-/* #undef HAVE_STRICMP */
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-#define HAVE_STROPTS_H 1
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#define HAVE_SYS_SOCKET_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-#define HAVE_SYS_UIO_H 1
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Define to 1 if you have the winsock2.h header file. */
-/* #undef HAVE_WINSOCK2_H */
-
-/* Define to 1 if you have the winsock.h header file. */
-/* #undef HAVE_WINSOCK_H */
-
-/* Define to 1 if you have the writev function. */
-#define HAVE_WRITEV 1
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-/* #undef HAVE_WS2TCPIP_H */
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-/* #undef NATIVE_WINDOWS */
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-/* #undef NEED_REENTRANT */
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i686-pc-linux-gnu"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.1"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.1"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 int
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 void
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG2_IS_VOID 1
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 socklen_t
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.1"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-#define _FILE_OFFSET_BITS 64
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-/* #undef in_addr_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-/* #undef CARES_STATICLIB */
-
-/* Define to 1 to enable hiding of library internal symbols. */
-/* #undef CARES_SYMBOL_HIDING */
-
-/* Definition to make a library symbol externally visible. */
-/* #undef CARES_SYMBOL_SCOPE_EXTERN */
-
-/* if a /etc/inet dir is being used */
-/* #undef ETC_INET */
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-#define GETNAMEINFO_QUAL_ARG1 const
-
-/* Define to the type of arg 1 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
-
-/* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 socklen_t
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG46 size_t
-
-/* Define to the type of arg 7 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG7 int
-
-/* Specifies the number of arguments to getservbyport_r */
-#define GETSERVBYPORT_R_ARGS 4
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-#define GETSERVBYPORT_R_BUFSIZE sizeof(struct servent_data)
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#define HAVE_ARPA_INET_H 1
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-/* #undef HAVE_ARPA_NAMESER_COMPAT_H */
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-#define HAVE_ARPA_NAMESER_H 1
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-#define HAVE_CLOCK_GETTIME_MONOTONIC 1
-
-/* Define to 1 if you have the closesocket function. */
-/* #undef HAVE_CLOSESOCKET */
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-#define HAVE_FCNTL 1
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-#define HAVE_FCNTL_O_NONBLOCK 1
-
-/* Define to 1 if you have the freeaddrinfo function. */
-#define HAVE_FREEADDRINFO 1
-
-/* Define to 1 if you have a working getaddrinfo function. */
-#define HAVE_GETADDRINFO 1
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-/* #undef HAVE_GETADDRINFO_THREADSAFE */
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-#define HAVE_GETNAMEINFO 1
-
-/* Define to 1 if you have the getservbyport_r function. */
-#define HAVE_GETSERVBYPORT_R 1
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-#define HAVE_IF_INDEXTONAME 1
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-#define HAVE_INET_NET_PTON 1
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-/* #undef HAVE_INET_NET_PTON_IPV6 */
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-#define HAVE_INET_NTOP 1
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-#define HAVE_INET_PTON 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-#define HAVE_IOCTL 1
-
-/* Define to 1 if you have the ioctlsocket function. */
-/* #undef HAVE_IOCTLSOCKET */
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-/* #undef HAVE_IOCTLSOCKET_FIONBIO */
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-#define HAVE_IOCTL_FIONBIO 1
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-#define HAVE_IOCTL_SIOCGIFADDR 1
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-#define HAVE_MALLOC_H 1
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-/* #undef HAVE_MSG_NOSIGNAL */
-
-/* Define to 1 if you have the <netdb.h> header file. */
-#define HAVE_NETDB_H 1
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#define HAVE_NETINET_IN_H 1
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-#define HAVE_NETINET_TCP_H 1
-
-/* Define to 1 if you have the <net/if.h> header file. */
-#define HAVE_NET_IF_H 1
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-/* #undef HAVE_STRCMPI */
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-/* #undef HAVE_STRICMP */
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-/* #undef HAVE_STROPTS_H */
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#define HAVE_SYS_SOCKET_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-#define HAVE_SYS_UIO_H 1
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Define to 1 if you have the winsock2.h header file. */
-/* #undef HAVE_WINSOCK2_H */
-
-/* Define to 1 if you have the winsock.h header file. */
-/* #undef HAVE_WINSOCK_H */
-
-/* Define to 1 if you have the writev function. */
-#define HAVE_WRITEV 1
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-/* #undef HAVE_WS2TCPIP_H */
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-/* #undef NATIVE_WINDOWS */
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-/* #undef NEED_REENTRANT */
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i386-unknown-openbsd4.7"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.1"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.1"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 int
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 void
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG2_IS_VOID 1
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 socklen_t
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.1"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-/* #undef _FILE_OFFSET_BITS */
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-/* #undef in_addr_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-/* #undef CARES_STATICLIB */
-
-/* Define to 1 to enable hiding of library internal symbols. */
-/* #undef CARES_SYMBOL_HIDING */
-
-/* Definition to make a library symbol externally visible. */
-/* #undef CARES_SYMBOL_SCOPE_EXTERN */
-
-/* if a /etc/inet dir is being used */
-#define ETC_INET 1
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-#define GETNAMEINFO_QUAL_ARG1 const
-
-/* Define to the type of arg 1 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
-
-/* Define to the type of arg 2 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG2 socklen_t
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG46 size_t
-
-/* Define to the type of arg 7 for getnameinfo. */
-#define GETNAMEINFO_TYPE_ARG7 int
-
-/* Specifies the number of arguments to getservbyport_r */
-#define GETSERVBYPORT_R_ARGS 5
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-#define GETSERVBYPORT_R_BUFSIZE 4096
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-#define HAVE_ARPA_INET_H 1
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-#define HAVE_ARPA_NAMESER_COMPAT_H 1
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-#define HAVE_ARPA_NAMESER_H 1
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-#define HAVE_CLOCK_GETTIME_MONOTONIC 1
-
-/* Define to 1 if you have the closesocket function. */
-/* #undef HAVE_CLOSESOCKET */
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-#define HAVE_FCNTL 1
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-#define HAVE_FCNTL_O_NONBLOCK 1
-
-/* Define to 1 if you have the freeaddrinfo function. */
-#define HAVE_FREEADDRINFO 1
-
-/* Define to 1 if you have a working getaddrinfo function. */
-#define HAVE_GETADDRINFO 1
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-#define HAVE_GETADDRINFO_THREADSAFE 1
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-#define HAVE_GETNAMEINFO 1
-
-/* Define to 1 if you have the getservbyport_r function. */
-#define HAVE_GETSERVBYPORT_R 1
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-#define HAVE_IF_INDEXTONAME 1
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-/* #undef HAVE_INET_NET_PTON */
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-/* #undef HAVE_INET_NET_PTON_IPV6 */
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-#define HAVE_INET_NTOP 1
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-#define HAVE_INET_PTON 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-#define HAVE_IOCTL 1
-
-/* Define to 1 if you have the ioctlsocket function. */
-/* #undef HAVE_IOCTLSOCKET */
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-/* #undef HAVE_IOCTLSOCKET_FIONBIO */
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-/* #undef HAVE_IOCTL_FIONBIO */
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-/* #undef HAVE_IOCTL_SIOCGIFADDR */
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-#define HAVE_MALLOC_H 1
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-/* #undef HAVE_MSG_NOSIGNAL */
-
-/* Define to 1 if you have the <netdb.h> header file. */
-#define HAVE_NETDB_H 1
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-#define HAVE_NETINET_IN_H 1
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-#define HAVE_NETINET_TCP_H 1
-
-/* Define to 1 if you have the <net/if.h> header file. */
-#define HAVE_NET_IF_H 1
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-/* #undef HAVE_STRCMPI */
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-/* #undef HAVE_STRICMP */
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-#define HAVE_STROPTS_H 1
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-#define HAVE_SYS_IOCTL_H 1
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-#define HAVE_SYS_SOCKET_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-#define HAVE_SYS_UIO_H 1
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-/* #undef HAVE_WINDOWS_H */
-
-/* Define to 1 if you have the winsock2.h header file. */
-/* #undef HAVE_WINSOCK2_H */
-
-/* Define to 1 if you have the winsock.h header file. */
-/* #undef HAVE_WINSOCK_H */
-
-/* Define to 1 if you have the writev function. */
-#define HAVE_WRITEV 1
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-/* #undef HAVE_WS2TCPIP_H */
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-/* #undef NATIVE_WINDOWS */
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-#define NEED_REENTRANT 1
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i386-pc-solaris2.11"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.1"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.1"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 int
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 void
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG2_IS_VOID 1
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 void
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-#define RECVFROM_TYPE_ARG6_IS_VOID 1
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 int
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 void *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 size_t
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.1"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-#define _FILE_OFFSET_BITS 64
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-/* #undef in_addr_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-/* ares_config.h. Generated from ares_config.h.in by configure. */
-/* ares_config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define if building universal (internal helper macro) */
-/* #undef AC_APPLE_UNIVERSAL_BUILD */
-
-/* define this if ares is built for a big endian system */
-/* #undef ARES_BIG_ENDIAN */
-
-/* when building as static part of libcurl */
-/* #undef BUILDING_LIBCURL */
-
-/* when building c-ares library */
-/* #undef CARES_BUILDING_LIBRARY */
-
-/* when not building a shared library */
-#define CARES_STATICLIB 1
-
-/* Define to 1 to enable hiding of library internal symbols. */
-/* #undef CARES_SYMBOL_HIDING */
-
-/* Definition to make a library symbol externally visible. */
-/* #undef CARES_SYMBOL_SCOPE_EXTERN */
-
-/* if a /etc/inet dir is being used */
-/* #undef ETC_INET */
-
-/* Define to the type qualifier of arg 1 for getnameinfo. */
-/* #undef GETNAMEINFO_QUAL_ARG1 */
-
-/* Define to the type of arg 1 for getnameinfo. */
-/* #undef GETNAMEINFO_TYPE_ARG1 */
-
-/* Define to the type of arg 2 for getnameinfo. */
-/* #undef GETNAMEINFO_TYPE_ARG2 */
-
-/* Define to the type of args 4 and 6 for getnameinfo. */
-/* #undef GETNAMEINFO_TYPE_ARG46 */
-
-/* Define to the type of arg 7 for getnameinfo. */
-/* #undef GETNAMEINFO_TYPE_ARG7 */
-
-/* Specifies the number of arguments to getservbyport_r */
-/* #undef GETSERVBYPORT_R_ARGS */
-
-/* Specifies the size of the buffer to pass to getservbyport_r */
-/* #undef GETSERVBYPORT_R_BUFSIZE */
-
-/* Define to 1 if you have AF_INET6. */
-#define HAVE_AF_INET6 1
-
-/* Define to 1 if you have the <arpa/inet.h> header file. */
-/* #undef HAVE_ARPA_INET_H */
-
-/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
-/* #undef HAVE_ARPA_NAMESER_COMPAT_H */
-
-/* Define to 1 if you have the <arpa/nameser.h> header file. */
-/* #undef HAVE_ARPA_NAMESER_H */
-
-/* Define to 1 if you have the <assert.h> header file. */
-#define HAVE_ASSERT_H 1
-
-/* Define to 1 if you have the `bitncmp' function. */
-/* #undef HAVE_BITNCMP */
-
-/* Define to 1 if bool is an available type. */
-#define HAVE_BOOL_T 1
-
-/* Define to 1 if you have the clock_gettime function and monotonic timer. */
-/* #undef HAVE_CLOCK_GETTIME_MONOTONIC */
-
-/* Define to 1 if you have the closesocket function. */
-#define HAVE_CLOSESOCKET 1
-
-/* Define to 1 if you have the CloseSocket camel case function. */
-/* #undef HAVE_CLOSESOCKET_CAMEL */
-
-/* Define to 1 if you have the connect function. */
-#define HAVE_CONNECT 1
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-/* #undef HAVE_DLFCN_H */
-
-/* Define to 1 if you have the <errno.h> header file. */
-#define HAVE_ERRNO_H 1
-
-/* Define to 1 if you have the fcntl function. */
-/* #undef HAVE_FCNTL */
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
-/* #undef HAVE_FCNTL_O_NONBLOCK */
-
-/* Define to 1 if you have the freeaddrinfo function. */
-/* #undef HAVE_FREEADDRINFO */
-
-/* Define to 1 if you have a working getaddrinfo function. */
-/* #undef HAVE_GETADDRINFO */
-
-/* Define to 1 if the getaddrinfo function is threadsafe. */
-/* #undef HAVE_GETADDRINFO_THREADSAFE */
-
-/* Define to 1 if you have the gethostbyaddr function. */
-#define HAVE_GETHOSTBYADDR 1
-
-/* Define to 1 if you have the gethostbyname function. */
-#define HAVE_GETHOSTBYNAME 1
-
-/* Define to 1 if you have the gethostname function. */
-#define HAVE_GETHOSTNAME 1
-
-/* Define to 1 if you have the getnameinfo function. */
-/* #undef HAVE_GETNAMEINFO */
-
-/* Define to 1 if you have the getservbyport_r function. */
-/* #undef HAVE_GETSERVBYPORT_R */
-
-/* Define to 1 if you have the `gettimeofday' function. */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define to 1 if you have the `if_indextoname' function. */
-/* #undef HAVE_IF_INDEXTONAME */
-
-/* Define to 1 if you have the `inet_net_pton' function. */
-/* #undef HAVE_INET_NET_PTON */
-
-/* Define to 1 if inet_net_pton supports IPv6. */
-/* #undef HAVE_INET_NET_PTON_IPV6 */
-
-/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
-/* #undef HAVE_INET_NTOP */
-
-/* Define to 1 if you have a IPv6 capable working inet_pton function. */
-/* #undef HAVE_INET_PTON */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the ioctl function. */
-/* #undef HAVE_IOCTL */
-
-/* Define to 1 if you have the ioctlsocket function. */
-#define HAVE_IOCTLSOCKET 1
-
-/* Define to 1 if you have the IoctlSocket camel case function. */
-/* #undef HAVE_IOCTLSOCKET_CAMEL */
-
-/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
- */
-/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
-
-/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
-#define HAVE_IOCTLSOCKET_FIONBIO 1
-
-/* Define to 1 if you have a working ioctl FIONBIO function. */
-/* #undef HAVE_IOCTL_FIONBIO */
-
-/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
-/* #undef HAVE_IOCTL_SIOCGIFADDR */
-
-/* Define to 1 if you have the `resolve' library (-lresolve). */
-/* #undef HAVE_LIBRESOLVE */
-
-/* Define to 1 if you have the <limits.h> header file. */
-#define HAVE_LIMITS_H 1
-
-/* if your compiler supports LL */
-#define HAVE_LL 1
-
-/* Define to 1 if the compiler supports the 'long long' data type. */
-#define HAVE_LONGLONG 1
-
-/* Define to 1 if you have the malloc.h header file. */
-#define HAVE_MALLOC_H 1
-
-/* Define to 1 if you have the memory.h header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the MSG_NOSIGNAL flag. */
-/* #undef HAVE_MSG_NOSIGNAL */
-
-/* Define to 1 if you have the <netdb.h> header file. */
-/* #undef HAVE_NETDB_H */
-
-/* Define to 1 if you have the <netinet/in.h> header file. */
-/* #undef HAVE_NETINET_IN_H */
-
-/* Define to 1 if you have the <netinet/tcp.h> header file. */
-/* #undef HAVE_NETINET_TCP_H */
-
-/* Define to 1 if you have the <net/if.h> header file. */
-/* #undef HAVE_NET_IF_H */
-
-/* Define to 1 if you have PF_INET6. */
-#define HAVE_PF_INET6 1
-
-/* Define to 1 if you have the recv function. */
-#define HAVE_RECV 1
-
-/* Define to 1 if you have the recvfrom function. */
-#define HAVE_RECVFROM 1
-
-/* Define to 1 if you have the send function. */
-#define HAVE_SEND 1
-
-/* Define to 1 if you have the setsockopt function. */
-#define HAVE_SETSOCKOPT 1
-
-/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
-/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
-
-/* Define to 1 if you have the <signal.h> header file. */
-#define HAVE_SIGNAL_H 1
-
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
-/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
-#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
-
-/* Define to 1 if you have the socket function. */
-#define HAVE_SOCKET 1
-
-/* Define to 1 if you have the <socket.h> header file. */
-/* #undef HAVE_SOCKET_H */
-
-/* Define to 1 if you have the <stdbool.h> header file. */
-#define HAVE_STDBOOL_H 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the strcasecmp function. */
-#define HAVE_STRCASECMP 1
-
-/* Define to 1 if you have the strcmpi function. */
-#define HAVE_STRCMPI 1
-
-/* Define to 1 if you have the strdup function. */
-#define HAVE_STRDUP 1
-
-/* Define to 1 if you have the stricmp function. */
-#define HAVE_STRICMP 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the strncasecmp function. */
-#define HAVE_STRNCASECMP 1
-
-/* Define to 1 if you have the strncmpi function. */
-/* #undef HAVE_STRNCMPI */
-
-/* Define to 1 if you have the strnicmp function. */
-/* #undef HAVE_STRNICMP */
-
-/* Define to 1 if you have the <stropts.h> header file. */
-/* #undef HAVE_STROPTS_H */
-
-/* Define to 1 if you have struct addrinfo. */
-#define HAVE_STRUCT_ADDRINFO 1
-
-/* Define to 1 if you have struct in6_addr. */
-#define HAVE_STRUCT_IN6_ADDR 1
-
-/* Define to 1 if you have struct sockaddr_in6. */
-#define HAVE_STRUCT_SOCKADDR_IN6 1
-
-/* if struct sockaddr_storage is defined */
-#define HAVE_STRUCT_SOCKADDR_STORAGE 1
-
-/* Define to 1 if you have the timeval struct. */
-#define HAVE_STRUCT_TIMEVAL 1
-
-/* Define to 1 if you have the <sys/ioctl.h> header file. */
-/* #undef HAVE_SYS_IOCTL_H */
-
-/* Define to 1 if you have the <sys/param.h> header file. */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-/* #undef HAVE_SYS_SELECT_H */
-
-/* Define to 1 if you have the <sys/socket.h> header file. */
-/* #undef HAVE_SYS_SOCKET_H */
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#define HAVE_SYS_TIME_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <sys/uio.h> header file. */
-/* #undef HAVE_SYS_UIO_H */
-
-/* Define to 1 if you have the <time.h> header file. */
-#define HAVE_TIME_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if you have the windows.h header file. */
-#define HAVE_WINDOWS_H 1
-
-/* Define to 1 if you have the winsock2.h header file. */
-#define HAVE_WINSOCK2_H 1
-
-/* Define to 1 if you have the winsock.h header file. */
-#define HAVE_WINSOCK_H 1
-
-/* Define to 1 if you have the writev function. */
-/* #undef HAVE_WRITEV */
-
-/* Define to 1 if you have the ws2tcpip.h header file. */
-#define HAVE_WS2TCPIP_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Define to 1 if you are building a native Windows target. */
-#define NATIVE_WINDOWS 1
-
-/* Define to 1 if you need the malloc.h header file even with stdlib.h */
-/* #undef NEED_MALLOC_H */
-
-/* Define to 1 if you need the memory.h header file even with stdlib.h */
-/* #undef NEED_MEMORY_H */
-
-/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
-/* #undef NEED_REENTRANT */
-
-/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
-/* #undef NEED_THREAD_SAFE */
-
-/* Define to 1 if your C compiler doesn't accept -c and -o together. */
-/* #undef NO_MINUS_C_MINUS_O */
-
-/* cpu-machine-OS */
-#define OS "i686-pc-mingw32"
-
-/* Name of package */
-#define PACKAGE "c-ares"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "c-ares"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "c-ares 1.7.3"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "c-ares"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "1.7.3"
-
-/* a suitable file/device to read random data from */
-#define RANDOM_FILE "/dev/urandom"
-
-/* Define to the type of arg 1 for recvfrom. */
-#define RECVFROM_TYPE_ARG1 SOCKET
-
-/* Define to the type pointed by arg 2 for recvfrom. */
-#define RECVFROM_TYPE_ARG2 char
-
-/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG2_IS_VOID */
-
-/* Define to the type of arg 3 for recvfrom. */
-#define RECVFROM_TYPE_ARG3 int
-
-/* Define to the type of arg 4 for recvfrom. */
-#define RECVFROM_TYPE_ARG4 int
-
-/* Define to the type pointed by arg 5 for recvfrom. */
-#define RECVFROM_TYPE_ARG5 struct sockaddr
-
-/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
-
-/* Define to the type pointed by arg 6 for recvfrom. */
-#define RECVFROM_TYPE_ARG6 int
-
-/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
-/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
-
-/* Define to the function return type for recvfrom. */
-#define RECVFROM_TYPE_RETV int
-
-/* Define to the type of arg 1 for recv. */
-#define RECV_TYPE_ARG1 SOCKET
-
-/* Define to the type of arg 2 for recv. */
-#define RECV_TYPE_ARG2 char *
-
-/* Define to the type of arg 3 for recv. */
-#define RECV_TYPE_ARG3 int
-
-/* Define to the type of arg 4 for recv. */
-#define RECV_TYPE_ARG4 int
-
-/* Define to the function return type for recv. */
-#define RECV_TYPE_RETV int
-
-/* Define as the return type of signal handlers (`int' or `void'). */
-#define RETSIGTYPE void
-
-/* Define to the type qualifier of arg 2 for send. */
-#define SEND_QUAL_ARG2 const
-
-/* Define to the type of arg 1 for send. */
-#define SEND_TYPE_ARG1 SOCKET
-
-/* Define to the type of arg 2 for send. */
-#define SEND_TYPE_ARG2 char *
-
-/* Define to the type of arg 3 for send. */
-#define SEND_TYPE_ARG3 int
-
-/* Define to the type of arg 4 for send. */
-#define SEND_TYPE_ARG4 int
-
-/* Define to the function return type for send. */
-#define SEND_TYPE_RETV int
-
-/* The size of `int', as computed by sizeof. */
-#define SIZEOF_INT 4
-
-/* The size of `long', as computed by sizeof. */
-#define SIZEOF_LONG 4
-
-/* The size of `size_t', as computed by sizeof. */
-#define SIZEOF_SIZE_T 4
-
-/* The size of `struct in6_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN6_ADDR 16
-
-/* The size of `struct in_addr', as computed by sizeof. */
-#define SIZEOF_STRUCT_IN_ADDR 4
-
-/* The size of `time_t', as computed by sizeof. */
-#define SIZEOF_TIME_T 4
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define to disable non-blocking sockets. */
-/* #undef USE_BLOCKING_SOCKETS */
-
-/* Version number of package */
-#define VERSION "1.7.3"
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
- significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-# define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-/* # undef WORDS_BIGENDIAN */
-# endif
-#endif
-
-/* Define to 1 if OS is AIX. */
-#ifndef _ALL_SOURCE
-/* # undef _ALL_SOURCE */
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-/* #undef _FILE_OFFSET_BITS */
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */
-
-/* Define to empty if `const' does not conform to ANSI C. */
-/* #undef const */
-
-/* Type to use in place of in_addr_t when system does not provide it. */
-#define in_addr_t unsigned long
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */
-
-/* the signed version of size_t */
-/* #undef ssize_t */
+++ /dev/null
-# ***************************************************************************
-# * Project: c-ares
-# *
-# ***************************************************************************
-# awk script which fetches c-ares version number and string from input
-# file and writes them to STDOUT. Here you can get an awk version for Win32:
-# http://www.gknw.net/development/prgtools/awk-20070501.zip
-#
-BEGIN {
- if (match (ARGV[1], /ares_version.h/)) {
- while ((getline < ARGV[1]) > 0) {
- if (match ($0, /^#define ARES_COPYRIGHT "[^"]+"$/)) {
- libcares_copyright_str = substr($0, 25, length($0)-25);
- }
- else if (match ($0, /^#define ARES_VERSION_STR "[^"]+"$/)) {
- libcares_ver_str = substr($3, 2, length($3)-2);
- }
- else if (match ($0, /^#define ARES_VERSION_MAJOR [0-9]+$/)) {
- libcares_ver_major = substr($3, 1, length($3));
- }
- else if (match ($0, /^#define ARES_VERSION_MINOR [0-9]+$/)) {
- libcares_ver_minor = substr($3, 1, length($3));
- }
- else if (match ($0, /^#define ARES_VERSION_PATCH [0-9]+$/)) {
- libcares_ver_patch = substr($3, 1, length($3));
- }
- }
- libcares_ver = libcares_ver_major "," libcares_ver_minor "," libcares_ver_patch;
- print "LIBCARES_VERSION = " libcares_ver "";
- print "LIBCARES_VERSION_STR = " libcares_ver_str "";
- print "LIBCARES_COPYRIGHT_STR = " libcares_copyright_str "";
- }
-}
-
-
+++ /dev/null
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1996,1999 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
- * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "ares.h"
-#include "ares_ipv6.h"
-#include "inet_net_pton.h"
-
-
-const struct ares_in6_addr ares_in6addr_any = { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } };
-
-
-#if !defined(HAVE_INET_NET_PTON) || !defined(HAVE_INET_NET_PTON_IPV6)
-
-/*
- * static int
- * inet_net_pton_ipv4(src, dst, size)
- * convert IPv4 network number from presentation to network format.
- * accepts hex octets, hex strings, decimal octets, and /CIDR.
- * "size" is in bytes and describes "dst".
- * return:
- * number of bits, either imputed classfully or specified with /CIDR,
- * or -1 if some failure occurred (check errno). ENOENT means it was
- * not an IPv4 network specification.
- * note:
- * network byte order assumed. this means 192.5.5.240/28 has
- * 0b11110000 in its fourth octet.
- * note:
- * On Windows we store the error in the thread errno, not
- * in the winsock error code. This is to avoid loosing the
- * actual last winsock error. So use macro ERRNO to fetch the
- * errno this funtion sets when returning (-1), not SOCKERRNO.
- * author:
- * Paul Vixie (ISC), June 1996
- */
-static int
-inet_net_pton_ipv4(const char *src, unsigned char *dst, size_t size)
-{
- static const char xdigits[] = "0123456789abcdef";
- static const char digits[] = "0123456789";
- int n, ch, tmp = 0, dirty, bits;
- const unsigned char *odst = dst;
-
- ch = *src++;
- if (ch == '0' && (src[0] == 'x' || src[0] == 'X')
- && ISXDIGIT(src[1])) {
- /* Hexadecimal: Eat nybble string. */
- if (!size)
- goto emsgsize;
- dirty = 0;
- src++; /* skip x or X. */
- while ((ch = *src++) != '\0' && ISXDIGIT(ch)) {
- if (ISUPPER(ch))
- ch = tolower(ch);
- n = (int)(strchr(xdigits, ch) - xdigits);
- if (dirty == 0)
- tmp = n;
- else
- tmp = (tmp << 4) | n;
- if (++dirty == 2) {
- if (!size--)
- goto emsgsize;
- *dst++ = (unsigned char) tmp;
- dirty = 0;
- }
- }
- if (dirty) { /* Odd trailing nybble? */
- if (!size--)
- goto emsgsize;
- *dst++ = (unsigned char) (tmp << 4);
- }
- } else if (ISDIGIT(ch)) {
- /* Decimal: eat dotted digit string. */
- for (;;) {
- tmp = 0;
- do {
- n = (int)(strchr(digits, ch) - digits);
- tmp *= 10;
- tmp += n;
- if (tmp > 255)
- goto enoent;
- } while ((ch = *src++) != '\0' &&
- ISDIGIT(ch));
- if (!size--)
- goto emsgsize;
- *dst++ = (unsigned char) tmp;
- if (ch == '\0' || ch == '/')
- break;
- if (ch != '.')
- goto enoent;
- ch = *src++;
- if (!ISDIGIT(ch))
- goto enoent;
- }
- } else
- goto enoent;
-
- bits = -1;
- if (ch == '/' &&
- ISDIGIT(src[0]) && dst > odst) {
- /* CIDR width specifier. Nothing can follow it. */
- ch = *src++; /* Skip over the /. */
- bits = 0;
- do {
- n = (int)(strchr(digits, ch) - digits);
- bits *= 10;
- bits += n;
- } while ((ch = *src++) != '\0' && ISDIGIT(ch));
- if (ch != '\0')
- goto enoent;
- if (bits > 32)
- goto emsgsize;
- }
-
- /* Firey death and destruction unless we prefetched EOS. */
- if (ch != '\0')
- goto enoent;
-
- /* If nothing was written to the destination, we found no address. */
- if (dst == odst)
- goto enoent;
- /* If no CIDR spec was given, infer width from net class. */
- if (bits == -1) {
- if (*odst >= 240) /* Class E */
- bits = 32;
- else if (*odst >= 224) /* Class D */
- bits = 8;
- else if (*odst >= 192) /* Class C */
- bits = 24;
- else if (*odst >= 128) /* Class B */
- bits = 16;
- else /* Class A */
- bits = 8;
- /* If imputed mask is narrower than specified octets, widen. */
- if (bits < ((dst - odst) * 8))
- bits = (int)(dst - odst) * 8;
- /*
- * If there are no additional bits specified for a class D
- * address adjust bits to 4.
- */
- if (bits == 8 && *odst == 224)
- bits = 4;
- }
- /* Extend network to cover the actual mask. */
- while (bits > ((dst - odst) * 8)) {
- if (!size--)
- goto emsgsize;
- *dst++ = '\0';
- }
- return (bits);
-
- enoent:
- SET_ERRNO(ENOENT);
- return (-1);
-
- emsgsize:
- SET_ERRNO(EMSGSIZE);
- return (-1);
-}
-
-static int
-getbits(const char *src, int *bitsp)
-{
- static const char digits[] = "0123456789";
- int n;
- int val;
- char ch;
-
- val = 0;
- n = 0;
- while ((ch = *src++) != '\0') {
- const char *pch;
-
- pch = strchr(digits, ch);
- if (pch != NULL) {
- if (n++ != 0 && val == 0) /* no leading zeros */
- return (0);
- val *= 10;
- val += (pch - digits);
- if (val > 128) /* range */
- return (0);
- continue;
- }
- return (0);
- }
- if (n == 0)
- return (0);
- *bitsp = val;
- return (1);
-}
-
-static int
-getv4(const char *src, unsigned char *dst, int *bitsp)
-{
- static const char digits[] = "0123456789";
- unsigned char *odst = dst;
- int n;
- unsigned int val;
- char ch;
-
- val = 0;
- n = 0;
- while ((ch = *src++) != '\0') {
- const char *pch;
-
- pch = strchr(digits, ch);
- if (pch != NULL) {
- if (n++ != 0 && val == 0) /* no leading zeros */
- return (0);
- val *= 10;
- val += (pch - digits);
- if (val > 255) /* range */
- return (0);
- continue;
- }
- if (ch == '.' || ch == '/') {
- if (dst - odst > 3) /* too many octets? */
- return (0);
- *dst++ = (unsigned char)val;
- if (ch == '/')
- return (getbits(src, bitsp));
- val = 0;
- n = 0;
- continue;
- }
- return (0);
- }
- if (n == 0)
- return (0);
- if (dst - odst > 3) /* too many octets? */
- return (0);
- *dst++ = (unsigned char)val;
- return (1);
-}
-
-static int
-inet_net_pton_ipv6(const char *src, unsigned char *dst, size_t size)
-{
- static const char xdigits_l[] = "0123456789abcdef",
- xdigits_u[] = "0123456789ABCDEF";
- unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp;
- const char *xdigits, *curtok;
- int ch, saw_xdigit;
- unsigned int val;
- int digits;
- int bits;
- size_t bytes;
- int words;
- int ipv4;
-
- memset((tp = tmp), '\0', NS_IN6ADDRSZ);
- endp = tp + NS_IN6ADDRSZ;
- colonp = NULL;
- /* Leading :: requires some special handling. */
- if (*src == ':')
- if (*++src != ':')
- goto enoent;
- curtok = src;
- saw_xdigit = 0;
- val = 0;
- digits = 0;
- bits = -1;
- ipv4 = 0;
- while ((ch = *src++) != '\0') {
- const char *pch;
-
- if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
- pch = strchr((xdigits = xdigits_u), ch);
- if (pch != NULL) {
- val <<= 4;
- val |= (pch - xdigits);
- if (++digits > 4)
- goto enoent;
- saw_xdigit = 1;
- continue;
- }
- if (ch == ':') {
- curtok = src;
- if (!saw_xdigit) {
- if (colonp)
- goto enoent;
- colonp = tp;
- continue;
- } else if (*src == '\0')
- goto enoent;
- if (tp + NS_INT16SZ > endp)
- return (0);
- *tp++ = (unsigned char)((val >> 8) & 0xff);
- *tp++ = (unsigned char)(val & 0xff);
- saw_xdigit = 0;
- digits = 0;
- val = 0;
- continue;
- }
- if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
- getv4(curtok, tp, &bits) > 0) {
- tp += NS_INADDRSZ;
- saw_xdigit = 0;
- ipv4 = 1;
- break; /* '\0' was seen by inet_pton4(). */
- }
- if (ch == '/' && getbits(src, &bits) > 0)
- break;
- goto enoent;
- }
- if (saw_xdigit) {
- if (tp + NS_INT16SZ > endp)
- goto enoent;
- *tp++ = (unsigned char)((val >> 8) & 0xff);
- *tp++ = (unsigned char)(val & 0xff);
- }
- if (bits == -1)
- bits = 128;
-
- words = (bits + 15) / 16;
- if (words < 2)
- words = 2;
- if (ipv4)
- words = 8;
- endp = tmp + 2 * words;
-
- if (colonp != NULL) {
- /*
- * Since some memmove()'s erroneously fail to handle
- * overlapping regions, we'll do the shift by hand.
- */
- const ssize_t n = tp - colonp;
- ssize_t i;
-
- if (tp == endp)
- goto enoent;
- for (i = 1; i <= n; i++) {
- *(endp - i) = *(colonp + n - i);
- *(colonp + n - i) = 0;
- }
- tp = endp;
- }
- if (tp != endp)
- goto enoent;
-
- bytes = (bits + 7) / 8;
- if (bytes > size)
- goto emsgsize;
- memcpy(dst, tmp, bytes);
- return (bits);
-
- enoent:
- SET_ERRNO(ENOENT);
- return (-1);
-
- emsgsize:
- SET_ERRNO(EMSGSIZE);
- return (-1);
-}
-
-/*
- * int
- * inet_net_pton(af, src, dst, size)
- * convert network number from presentation to network format.
- * accepts hex octets, hex strings, decimal octets, and /CIDR.
- * "size" is in bytes and describes "dst".
- * return:
- * number of bits, either imputed classfully or specified with /CIDR,
- * or -1 if some failure occurred (check errno). ENOENT means it was
- * not a valid network specification.
- * note:
- * On Windows we store the error in the thread errno, not
- * in the winsock error code. This is to avoid loosing the
- * actual last winsock error. So use macro ERRNO to fetch the
- * errno this funtion sets when returning (-1), not SOCKERRNO.
- * author:
- * Paul Vixie (ISC), June 1996
- */
-int
-ares_inet_net_pton(int af, const char *src, void *dst, size_t size)
-{
- switch (af) {
- case AF_INET:
- return (inet_net_pton_ipv4(src, dst, size));
- case AF_INET6:
- return (inet_net_pton_ipv6(src, dst, size));
- default:
- SET_ERRNO(EAFNOSUPPORT);
- return (-1);
- }
-}
-
-#endif
-
-#ifndef HAVE_INET_PTON
-int ares_inet_pton(int af, const char *src, void *dst)
-{
- int result;
- size_t size;
-
- if (af == AF_INET)
- size = sizeof(struct in_addr);
- else if (af == AF_INET6)
- size = sizeof(struct ares_in6_addr);
- else
- {
- SET_ERRNO(EAFNOSUPPORT);
- return -1;
- }
- result = ares_inet_net_pton(af, src, dst, size);
- if (result == -1 && ERRNO == ENOENT)
- return 0;
- return (result > -1 ? 1 : -1);
-}
-#endif
+++ /dev/null
-#ifndef __ARES_INET_NET_PTON_H
-#define __ARES_INET_NET_PTON_H
-
-
-/* Copyright (C) 2005 by Daniel Stenberg
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#ifdef HAVE_INET_PTON
-#define ares_inet_pton(x,y,z) inet_pton(x,y,z)
-#else
-int ares_inet_pton(int af, const char *src, void *dst);
-#endif
-#if defined(HAVE_INET_NET_PTON) && defined(HAVE_INET_NET_PTON_IPV6)
-#define ares_inet_net_pton(w,x,y,z) inet_net_pton(w,x,y,z)
-#else
-int ares_inet_net_pton(int af, const char *src, void *dst, size_t size);
-#endif
-
-#endif /* __ARES_INET_NET_PTON_H */
+++ /dev/null
-
-/* Copyright (c) 1996 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-#include "ares_setup.h"
-
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "ares.h"
-#include "ares_ipv6.h"
-#include "inet_ntop.h"
-
-
-#ifndef HAVE_INET_NTOP
-
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) ((size_t)sprintf x)
-#endif
-
-/*
- * WARNING: Don't even consider trying to compile this on a system where
- * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
- */
-
-static const char *inet_ntop4(const unsigned char *src, char *dst, size_t size);
-static const char *inet_ntop6(const unsigned char *src, char *dst, size_t size);
-
-/* char *
- * inet_ntop(af, src, dst, size)
- * convert a network format address to presentation format.
- * return:
- * pointer to presentation format address (`dst'), or NULL (see errno).
- * note:
- * On Windows we store the error in the thread errno, not
- * in the winsock error code. This is to avoid loosing the
- * actual last winsock error. So use macro ERRNO to fetch the
- * errno this funtion sets when returning NULL, not SOCKERRNO.
- * author:
- * Paul Vixie, 1996.
- */
-const char *
-ares_inet_ntop(int af, const void *src, char *dst, size_t size)
-{
- switch (af)
- {
- case AF_INET:
- return (inet_ntop4(src, dst, size));
- case AF_INET6:
- return (inet_ntop6(src, dst, size));
- default:
- SET_ERRNO(EAFNOSUPPORT);
- return (NULL);
- }
- /* NOTREACHED */
-}
-
-/* const char *
- * inet_ntop4(src, dst, size)
- * format an IPv4 address, more or less like inet_ntoa()
- * return:
- * `dst' (as a const)
- * notes:
- * (1) uses no statics
- * (2) takes a unsigned char* not an in_addr as input
- * author:
- * Paul Vixie, 1996.
- */
-static const char *
-inet_ntop4(const unsigned char *src, char *dst, size_t size)
-{
- static const char fmt[] = "%u.%u.%u.%u";
- char tmp[sizeof "255.255.255.255"];
-
- if (SPRINTF((tmp, fmt, src[0], src[1], src[2], src[3])) > size)
- {
- SET_ERRNO(ENOSPC);
- return (NULL);
- }
- strcpy(dst, tmp);
- return (dst);
-}
-
-/* const char *
- * inet_ntop6(src, dst, size)
- * convert IPv6 binary address into presentation (printable) format
- * author:
- * Paul Vixie, 1996.
- */
-static const char *
-inet_ntop6(const unsigned char *src, char *dst, size_t size)
-{
- /*
- * Note that int32_t and int16_t need only be "at least" large enough
- * to contain a value of the specified size. On some systems, like
- * Crays, there is no such thing as an integer variable with 16 bits.
- * Keep this in mind if you think this function should have been coded
- * to use pointer overlays. All the world's not a VAX.
- */
- char tmp[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")];
- char *tp;
- struct {
- long base;
- long len;
- } best, cur;
- unsigned long words[NS_IN6ADDRSZ / NS_INT16SZ];
- int i;
-
- /*
- * Preprocess:
- * Copy the input (bytewise) array into a wordwise array.
- * Find the longest run of 0x00's in src[] for :: shorthanding.
- */
- memset(words, '\0', sizeof(words));
- for (i = 0; i < NS_IN6ADDRSZ; i++)
- words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
-
- best.base = -1;
- cur.base = -1;
- best.len = 0;
- cur.len = 0;
-
- for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
- {
- if (words[i] == 0)
- {
- if (cur.base == -1)
- cur.base = i, cur.len = 1;
- else
- cur.len++;
- }
- else
- {
- if (cur.base != -1)
- {
- if (best.base == -1 || cur.len > best.len)
- best = cur;
- cur.base = -1;
- }
- }
- }
- if (cur.base != -1)
- {
- if (best.base == -1 || cur.len > best.len)
- best = cur;
- }
- if (best.base != -1 && best.len < 2)
- best.base = -1;
-
- /*
- * Format the result.
- */
- tp = tmp;
- for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
- {
- /* Are we inside the best run of 0x00's? */
- if (best.base != -1 && i >= best.base &&
- i < (best.base + best.len))
- {
- if (i == best.base)
- *tp++ = ':';
- continue;
- }
- /* Are we following an initial run of 0x00s or any real hex? */
- if (i != 0)
- *tp++ = ':';
- /* Is this address an encapsulated IPv4? */
- if (i == 6 && best.base == 0 &&
- (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
- {
- if (!inet_ntop4(src+12, tp, sizeof(tmp) - (tp - tmp)))
- return (NULL);
- tp += strlen(tp);
- break;
- }
- tp += SPRINTF((tp, "%lx", words[i]));
- }
-
- /* Was it a trailing run of 0x00's? */
- if (best.base != -1 && (best.base + best.len) == (NS_IN6ADDRSZ / NS_INT16SZ))
- *tp++ = ':';
- *tp++ = '\0';
-
- /*
- * Check for overflow, copy, and we're done.
- */
- if ((size_t)(tp - tmp) > size)
- {
- SET_ERRNO(ENOSPC);
- return (NULL);
- }
- strcpy(dst, tmp);
- return (dst);
-}
-#endif
-
+++ /dev/null
-#ifndef __ARES_INET_NTOP_H
-#define __ARES_INET_NTOP_H
-
-
-/* Copyright (C) 2005 by Dominick Meglio
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-#ifdef HAVE_INET_NTOP
-#define ares_inet_ntop(w,x,y,z) inet_ntop(w,x,y,z)
-#else
-const char *ares_inet_ntop(int af, const void *src, char *dst, size_t size);
-#endif
-
-#endif /* __ARES_INET_NTOP_H */
+++ /dev/null
-
-#ifndef ARES_NAMESER_H
-#define ARES_NAMESER_H
-
-/* header file provided by liren@vivisimo.com */
-
-#ifndef HAVE_ARPA_NAMESER_H
-
-#define NS_PACKETSZ 512 /* maximum packet size */
-#define NS_MAXDNAME 256 /* maximum domain name */
-#define NS_MAXCDNAME 255 /* maximum compressed domain name */
-#define NS_MAXLABEL 63
-#define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
-#define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
-#define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
-#define NS_INT16SZ 2
-#define NS_INADDRSZ 4
-#define NS_IN6ADDRSZ 16
-#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
-#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
-
-typedef enum __ns_class {
- ns_c_invalid = 0, /* Cookie. */
- ns_c_in = 1, /* Internet. */
- ns_c_2 = 2, /* unallocated/unsupported. */
- ns_c_chaos = 3, /* MIT Chaos-net. */
- ns_c_hs = 4, /* MIT Hesiod. */
- /* Query class values which do not appear in resource records */
- ns_c_none = 254, /* for prereq. sections in update requests */
- ns_c_any = 255, /* Wildcard match. */
- ns_c_max = 65536
-} ns_class;
-
-typedef enum __ns_type {
- ns_t_invalid = 0, /* Cookie. */
- ns_t_a = 1, /* Host address. */
- ns_t_ns = 2, /* Authoritative server. */
- ns_t_md = 3, /* Mail destination. */
- ns_t_mf = 4, /* Mail forwarder. */
- ns_t_cname = 5, /* Canonical name. */
- ns_t_soa = 6, /* Start of authority zone. */
- ns_t_mb = 7, /* Mailbox domain name. */
- ns_t_mg = 8, /* Mail group member. */
- ns_t_mr = 9, /* Mail rename name. */
- ns_t_null = 10, /* Null resource record. */
- ns_t_wks = 11, /* Well known service. */
- ns_t_ptr = 12, /* Domain name pointer. */
- ns_t_hinfo = 13, /* Host information. */
- ns_t_minfo = 14, /* Mailbox information. */
- ns_t_mx = 15, /* Mail routing information. */
- ns_t_txt = 16, /* Text strings. */
- ns_t_rp = 17, /* Responsible person. */
- ns_t_afsdb = 18, /* AFS cell database. */
- ns_t_x25 = 19, /* X_25 calling address. */
- ns_t_isdn = 20, /* ISDN calling address. */
- ns_t_rt = 21, /* Router. */
- ns_t_nsap = 22, /* NSAP address. */
- ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
- ns_t_sig = 24, /* Security signature. */
- ns_t_key = 25, /* Security key. */
- ns_t_px = 26, /* X.400 mail mapping. */
- ns_t_gpos = 27, /* Geographical position (withdrawn). */
- ns_t_aaaa = 28, /* Ip6 Address. */
- ns_t_loc = 29, /* Location Information. */
- ns_t_nxt = 30, /* Next domain (security). */
- ns_t_eid = 31, /* Endpoint identifier. */
- ns_t_nimloc = 32, /* Nimrod Locator. */
- ns_t_srv = 33, /* Server Selection. */
- ns_t_atma = 34, /* ATM Address */
- ns_t_naptr = 35, /* Naming Authority PoinTeR */
- ns_t_kx = 36, /* Key Exchange */
- ns_t_cert = 37, /* Certification record */
- ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
- ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
- ns_t_sink = 40, /* Kitchen sink (experimentatl) */
- ns_t_opt = 41, /* EDNS0 option (meta-RR) */
- ns_t_apl = 42, /* Address prefix list (RFC3123) */
- ns_t_tkey = 249, /* Transaction key */
- ns_t_tsig = 250, /* Transaction signature. */
- ns_t_ixfr = 251, /* Incremental zone transfer. */
- ns_t_axfr = 252, /* Transfer zone of authority. */
- ns_t_mailb = 253, /* Transfer mailbox records. */
- ns_t_maila = 254, /* Transfer mail agent records. */
- ns_t_any = 255, /* Wildcard match. */
- ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
- ns_t_max = 65536
-} ns_type;
-
-typedef enum __ns_opcode {
- ns_o_query = 0, /* Standard query. */
- ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
- ns_o_status = 2, /* Name server status query (unsupported). */
- /* Opcode 3 is undefined/reserved. */
- ns_o_notify = 4, /* Zone change notification. */
- ns_o_update = 5, /* Zone update message. */
- ns_o_max = 6
-} ns_opcode;
-
-typedef enum __ns_rcode {
- ns_r_noerror = 0, /* No error occurred. */
- ns_r_formerr = 1, /* Format error. */
- ns_r_servfail = 2, /* Server failure. */
- ns_r_nxdomain = 3, /* Name error. */
- ns_r_notimpl = 4, /* Unimplemented. */
- ns_r_refused = 5, /* Operation refused. */
- /* these are for BIND_UPDATE */
- ns_r_yxdomain = 6, /* Name exists */
- ns_r_yxrrset = 7, /* RRset exists */
- ns_r_nxrrset = 8, /* RRset does not exist */
- ns_r_notauth = 9, /* Not authoritative for zone */
- ns_r_notzone = 10, /* Zone of record different from zone section */
- ns_r_max = 11,
- /* The following are TSIG extended errors */
- ns_r_badsig = 16,
- ns_r_badkey = 17,
- ns_r_badtime = 18
-} ns_rcode;
-
-#endif /* HAVE_ARPA_NAMESER_H */
-
-#ifndef HAVE_ARPA_NAMESER_COMPAT_H
-
-#define PACKETSZ NS_PACKETSZ
-#define MAXDNAME NS_MAXDNAME
-#define MAXCDNAME NS_MAXCDNAME
-#define MAXLABEL NS_MAXLABEL
-#define HFIXEDSZ NS_HFIXEDSZ
-#define QFIXEDSZ NS_QFIXEDSZ
-#define RRFIXEDSZ NS_RRFIXEDSZ
-#define INDIR_MASK NS_CMPRSFLGS
-#define NAMESERVER_PORT NS_DEFAULTPORT
-
-#define QUERY ns_o_query
-
-#define SERVFAIL ns_r_servfail
-#define NOTIMP ns_r_notimpl
-#define REFUSED ns_r_refused
-#undef NOERROR /* it seems this is already defined in winerror.h */
-#define NOERROR ns_r_noerror
-#define FORMERR ns_r_formerr
-#define NXDOMAIN ns_r_nxdomain
-
-#define C_IN ns_c_in
-#define C_CHAOS ns_c_chaos
-#define C_HS ns_c_hs
-#define C_NONE ns_c_none
-#define C_ANY ns_c_any
-
-#define T_A ns_t_a
-#define T_NS ns_t_ns
-#define T_MD ns_t_md
-#define T_MF ns_t_mf
-#define T_CNAME ns_t_cname
-#define T_SOA ns_t_soa
-#define T_MB ns_t_mb
-#define T_MG ns_t_mg
-#define T_MR ns_t_mr
-#define T_NULL ns_t_null
-#define T_WKS ns_t_wks
-#define T_PTR ns_t_ptr
-#define T_HINFO ns_t_hinfo
-#define T_MINFO ns_t_minfo
-#define T_MX ns_t_mx
-#define T_TXT ns_t_txt
-#define T_RP ns_t_rp
-#define T_AFSDB ns_t_afsdb
-#define T_X25 ns_t_x25
-#define T_ISDN ns_t_isdn
-#define T_RT ns_t_rt
-#define T_NSAP ns_t_nsap
-#define T_NSAP_PTR ns_t_nsap_ptr
-#define T_SIG ns_t_sig
-#define T_KEY ns_t_key
-#define T_PX ns_t_px
-#define T_GPOS ns_t_gpos
-#define T_AAAA ns_t_aaaa
-#define T_LOC ns_t_loc
-#define T_NXT ns_t_nxt
-#define T_EID ns_t_eid
-#define T_NIMLOC ns_t_nimloc
-#define T_SRV ns_t_srv
-#define T_ATMA ns_t_atma
-#define T_NAPTR ns_t_naptr
-#define T_TSIG ns_t_tsig
-#define T_IXFR ns_t_ixfr
-#define T_AXFR ns_t_axfr
-#define T_MAILB ns_t_mailb
-#define T_MAILA ns_t_maila
-#define T_ANY ns_t_any
-
-#endif /* HAVE_ARPA_NAMESER_COMPAT_H */
-
-#endif /* ARES_NAMESER_H */
+++ /dev/null
-#ifndef __SETUP_ONCE_H
-#define __SETUP_ONCE_H
-
-
-/* Copyright (C) 2004 - 2010 by Daniel Stenberg et al
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. M.I.T. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-
-
-/********************************************************************
- * NOTICE *
- * ======== *
- * *
- * Content of header files lib/setup_once.h and ares/setup_once.h *
- * must be kept in sync. Modify the other one if you change this. *
- * *
- ********************************************************************/
-
-
-/*
- * Inclusion of common header files.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <errno.h>
-
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#ifdef NEED_MALLOC_H
-#include <malloc.h>
-#endif
-
-#ifdef NEED_MEMORY_H
-#include <memory.h>
-#endif
-
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#ifdef TIME_WITH_SYS_TIME
-#include <time.h>
-#endif
-#else
-#ifdef HAVE_TIME_H
-#include <time.h>
-#endif
-#endif
-
-#ifdef WIN32
-#include <io.h>
-#include <fcntl.h>
-#endif
-
-#ifdef HAVE_STDBOOL_H
-#include <stdbool.h>
-#endif
-
-
-/*
- * Definition of timeval struct for platforms that don't have it.
- */
-
-#ifndef HAVE_STRUCT_TIMEVAL
-struct timeval {
- long tv_sec;
- long tv_usec;
-};
-#endif
-
-
-/*
- * If we have the MSG_NOSIGNAL define, make sure we use
- * it as the fourth argument of function send()
- */
-
-#ifdef HAVE_MSG_NOSIGNAL
-#define SEND_4TH_ARG MSG_NOSIGNAL
-#else
-#define SEND_4TH_ARG 0
-#endif
-
-
-#if defined(__minix)
-/* Minix doesn't support recv on TCP sockets */
-#define sread(x,y,z) (ssize_t)read((RECV_TYPE_ARG1)(x), \
- (RECV_TYPE_ARG2)(y), \
- (RECV_TYPE_ARG3)(z))
-
-#elif defined(HAVE_RECV)
-/*
- * The definitions for the return type and arguments types
- * of functions recv() and send() belong and come from the
- * configuration file. Do not define them in any other place.
- *
- * HAVE_RECV is defined if you have a function named recv()
- * which is used to read incoming data from sockets. If your
- * function has another name then don't define HAVE_RECV.
- *
- * If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2,
- * RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also
- * be defined.
- *
- * HAVE_SEND is defined if you have a function named send()
- * which is used to write outgoing data on a connected socket.
- * If yours has another name then don't define HAVE_SEND.
- *
- * If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2,
- * SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and
- * SEND_TYPE_RETV must also be defined.
- */
-
-#if !defined(RECV_TYPE_ARG1) || \
- !defined(RECV_TYPE_ARG2) || \
- !defined(RECV_TYPE_ARG3) || \
- !defined(RECV_TYPE_ARG4) || \
- !defined(RECV_TYPE_RETV)
- /* */
- Error Missing_definition_of_return_and_arguments_types_of_recv
- /* */
-#else
-#define sread(x,y,z) (ssize_t)recv((RECV_TYPE_ARG1)(x), \
- (RECV_TYPE_ARG2)(y), \
- (RECV_TYPE_ARG3)(z), \
- (RECV_TYPE_ARG4)(0))
-#endif
-#else /* HAVE_RECV */
-#ifndef sread
- /* */
- Error Missing_definition_of_macro_sread
- /* */
-#endif
-#endif /* HAVE_RECV */
-
-
-#if defined(__minix)
-/* Minix doesn't support send on TCP sockets */
-#define swrite(x,y,z) (ssize_t)write((SEND_TYPE_ARG1)(x), \
- (SEND_TYPE_ARG2)(y), \
- (SEND_TYPE_ARG3)(z))
-
-#elif defined(HAVE_SEND)
-#if !defined(SEND_TYPE_ARG1) || \
- !defined(SEND_QUAL_ARG2) || \
- !defined(SEND_TYPE_ARG2) || \
- !defined(SEND_TYPE_ARG3) || \
- !defined(SEND_TYPE_ARG4) || \
- !defined(SEND_TYPE_RETV)
- /* */
- Error Missing_definition_of_return_and_arguments_types_of_send
- /* */
-#else
-#define swrite(x,y,z) (ssize_t)send((SEND_TYPE_ARG1)(x), \
- (SEND_TYPE_ARG2)(y), \
- (SEND_TYPE_ARG3)(z), \
- (SEND_TYPE_ARG4)(SEND_4TH_ARG))
-#endif
-#else /* HAVE_SEND */
-#ifndef swrite
- /* */
- Error Missing_definition_of_macro_swrite
- /* */
-#endif
-#endif /* HAVE_SEND */
-
-
-#if 0
-#if defined(HAVE_RECVFROM)
-/*
- * Currently recvfrom is only used on udp sockets.
- */
-#if !defined(RECVFROM_TYPE_ARG1) || \
- !defined(RECVFROM_TYPE_ARG2) || \
- !defined(RECVFROM_TYPE_ARG3) || \
- !defined(RECVFROM_TYPE_ARG4) || \
- !defined(RECVFROM_TYPE_ARG5) || \
- !defined(RECVFROM_TYPE_ARG6) || \
- !defined(RECVFROM_TYPE_RETV)
- /* */
- Error Missing_definition_of_return_and_arguments_types_of_recvfrom
- /* */
-#else
-#define sreadfrom(s,b,bl,f,fl) (ssize_t)recvfrom((RECVFROM_TYPE_ARG1) (s), \
- (RECVFROM_TYPE_ARG2 *)(b), \
- (RECVFROM_TYPE_ARG3) (bl), \
- (RECVFROM_TYPE_ARG4) (0), \
- (RECVFROM_TYPE_ARG5 *)(f), \
- (RECVFROM_TYPE_ARG6 *)(fl))
-#endif
-#else /* HAVE_RECVFROM */
-#ifndef sreadfrom
- /* */
- Error Missing_definition_of_macro_sreadfrom
- /* */
-#endif
-#endif /* HAVE_RECVFROM */
-
-
-#ifdef RECVFROM_TYPE_ARG6_IS_VOID
-# define RECVFROM_ARG6_T int
-#else
-# define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6
-#endif
-#endif /* if 0 */
-
-
-/*
- * Function-like macro definition used to close a socket.
- */
-
-#if defined(HAVE_CLOSESOCKET)
-# define sclose(x) closesocket((x))
-#elif defined(HAVE_CLOSESOCKET_CAMEL)
-# define sclose(x) CloseSocket((x))
-#else
-# define sclose(x) close((x))
-#endif
-
-
-/*
- * Uppercase macro versions of ANSI/ISO is*() functions/macros which
- * avoid negative number inputs with argument byte codes > 127.
- */
-
-#define ISSPACE(x) (isspace((int) ((unsigned char)x)))
-#define ISDIGIT(x) (isdigit((int) ((unsigned char)x)))
-#define ISALNUM(x) (isalnum((int) ((unsigned char)x)))
-#define ISXDIGIT(x) (isxdigit((int) ((unsigned char)x)))
-#define ISGRAPH(x) (isgraph((int) ((unsigned char)x)))
-#define ISALPHA(x) (isalpha((int) ((unsigned char)x)))
-#define ISPRINT(x) (isprint((int) ((unsigned char)x)))
-#define ISUPPER(x) (isupper((int) ((unsigned char)x)))
-#define ISLOWER(x) (islower((int) ((unsigned char)x)))
-
-#define ISBLANK(x) (int)((((unsigned char)x) == ' ') || \
- (((unsigned char)x) == '\t'))
-
-#define TOLOWER(x) (tolower((int) ((unsigned char)x)))
-
-
-/*
- * 'bool' exists on platforms with <stdbool.h>, i.e. C99 platforms.
- * On non-C99 platforms there's no bool, so define an enum for that.
- * On C99 platforms 'false' and 'true' also exist. Enum uses a
- * global namespace though, so use bool_false and bool_true.
- */
-
-#ifndef HAVE_BOOL_T
- typedef enum {
- bool_false = 0,
- bool_true = 1
- } bool;
-
-/*
- * Use a define to let 'true' and 'false' use those enums. There
- * are currently no use of true and false in libcurl proper, but
- * there are some in the examples. This will cater for any later
- * code happening to use true and false.
- */
-# define false bool_false
-# define true bool_true
-# define HAVE_BOOL_T
-#endif
-
-
-/*
- * Redefine TRUE and FALSE too, to catch current use. With this
- * change, 'bool found = 1' will give a warning on MIPSPro, but
- * 'bool found = TRUE' will not. Change tested on IRIX/MIPSPro,
- * AIX 5.1/Xlc, Tru64 5.1/cc, w/make test too.
- */
-
-#ifndef TRUE
-#define TRUE true
-#endif
-#ifndef FALSE
-#define FALSE false
-#endif
-
-
-/*
- * Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type.
- */
-
-#ifndef HAVE_SIG_ATOMIC_T
-typedef int sig_atomic_t;
-#define HAVE_SIG_ATOMIC_T
-#endif
-
-
-/*
- * Convenience SIG_ATOMIC_T definition
- */
-
-#ifdef HAVE_SIG_ATOMIC_T_VOLATILE
-#define SIG_ATOMIC_T static sig_atomic_t
-#else
-#define SIG_ATOMIC_T static volatile sig_atomic_t
-#endif
-
-
-/*
- * Default return type for signal handlers.
- */
-
-#ifndef RETSIGTYPE
-#define RETSIGTYPE void
-#endif
-
-
-/*
- * Macro used to include code only in debug builds.
- */
-
-#ifdef DEBUGBUILD
-#define DEBUGF(x) x
-#else
-#define DEBUGF(x) do { } while (0)
-#endif
-
-
-/*
- * Macro used to include assertion code only in debug builds.
- */
-
-#if defined(DEBUGBUILD) && defined(HAVE_ASSERT_H)
-#define DEBUGASSERT(x) assert(x)
-#else
-#define DEBUGASSERT(x) do { } while (0)
-#endif
-
-
-/*
- * Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno
- * (or equivalent) on this platform to hide platform details to code using it.
- */
-
-#ifdef USE_WINSOCK
-#define SOCKERRNO ((int)WSAGetLastError())
-#define SET_SOCKERRNO(x) (WSASetLastError((int)(x)))
-#else
-#define SOCKERRNO (errno)
-#define SET_SOCKERRNO(x) (errno = (x))
-#endif
-
-
-/*
- * Macro ERRNO / SET_ERRNO() returns / sets the NOT *socket-related* errno
- * (or equivalent) on this platform to hide platform details to code using it.
- */
-
-#ifdef WIN32
-#define ERRNO ((int)GetLastError())
-#define SET_ERRNO(x) (SetLastError((DWORD)(x)))
-#else
-#define ERRNO (errno)
-#define SET_ERRNO(x) (errno = (x))
-#endif
-
-
-/*
- * Portable error number symbolic names defined to Winsock error codes.
- */
-
-#ifdef USE_WINSOCK
-#undef EBADF /* override definition in errno.h */
-#define EBADF WSAEBADF
-#undef EINTR /* override definition in errno.h */
-#define EINTR WSAEINTR
-#undef EINVAL /* override definition in errno.h */
-#define EINVAL WSAEINVAL
-#undef EWOULDBLOCK /* override definition in errno.h */
-#define EWOULDBLOCK WSAEWOULDBLOCK
-#undef EINPROGRESS /* override definition in errno.h */
-#define EINPROGRESS WSAEINPROGRESS
-#undef EALREADY /* override definition in errno.h */
-#define EALREADY WSAEALREADY
-#undef ENOTSOCK /* override definition in errno.h */
-#define ENOTSOCK WSAENOTSOCK
-#undef EDESTADDRREQ /* override definition in errno.h */
-#define EDESTADDRREQ WSAEDESTADDRREQ
-#undef EMSGSIZE /* override definition in errno.h */
-#define EMSGSIZE WSAEMSGSIZE
-#undef EPROTOTYPE /* override definition in errno.h */
-#define EPROTOTYPE WSAEPROTOTYPE
-#undef ENOPROTOOPT /* override definition in errno.h */
-#define ENOPROTOOPT WSAENOPROTOOPT
-#undef EPROTONOSUPPORT /* override definition in errno.h */
-#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
-#define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
-#undef EOPNOTSUPP /* override definition in errno.h */
-#define EOPNOTSUPP WSAEOPNOTSUPP
-#define EPFNOSUPPORT WSAEPFNOSUPPORT
-#undef EAFNOSUPPORT /* override definition in errno.h */
-#define EAFNOSUPPORT WSAEAFNOSUPPORT
-#undef EADDRINUSE /* override definition in errno.h */
-#define EADDRINUSE WSAEADDRINUSE
-#undef EADDRNOTAVAIL /* override definition in errno.h */
-#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
-#undef ENETDOWN /* override definition in errno.h */
-#define ENETDOWN WSAENETDOWN
-#undef ENETUNREACH /* override definition in errno.h */
-#define ENETUNREACH WSAENETUNREACH
-#undef ENETRESET /* override definition in errno.h */
-#define ENETRESET WSAENETRESET
-#undef ECONNABORTED /* override definition in errno.h */
-#define ECONNABORTED WSAECONNABORTED
-#undef ECONNRESET /* override definition in errno.h */
-#define ECONNRESET WSAECONNRESET
-#undef ENOBUFS /* override definition in errno.h */
-#define ENOBUFS WSAENOBUFS
-#undef EISCONN /* override definition in errno.h */
-#define EISCONN WSAEISCONN
-#undef ENOTCONN /* override definition in errno.h */
-#define ENOTCONN WSAENOTCONN
-#define ESHUTDOWN WSAESHUTDOWN
-#define ETOOMANYREFS WSAETOOMANYREFS
-#undef ETIMEDOUT /* override definition in errno.h */
-#define ETIMEDOUT WSAETIMEDOUT
-#undef ECONNREFUSED /* override definition in errno.h */
-#define ECONNREFUSED WSAECONNREFUSED
-#undef ELOOP /* override definition in errno.h */
-#define ELOOP WSAELOOP
-#ifndef ENAMETOOLONG /* possible previous definition in errno.h */
-#define ENAMETOOLONG WSAENAMETOOLONG
-#endif
-#define EHOSTDOWN WSAEHOSTDOWN
-#undef EHOSTUNREACH /* override definition in errno.h */
-#define EHOSTUNREACH WSAEHOSTUNREACH
-#ifndef ENOTEMPTY /* possible previous definition in errno.h */
-#define ENOTEMPTY WSAENOTEMPTY
-#endif
-#define EPROCLIM WSAEPROCLIM
-#define EUSERS WSAEUSERS
-#define EDQUOT WSAEDQUOT
-#define ESTALE WSAESTALE
-#define EREMOTE WSAEREMOTE
-#endif
-
-
-/*
- * Actually use __32_getpwuid() on 64-bit VMS builds for getpwuid()
- */
-
-#if defined(__VMS) && \
- defined(__INITIAL_POINTER_SIZE) && (__INITIAL_POINTER_SIZE == 64)
-#define getpwuid __32_getpwuid
-#endif
-
-
-/*
- * Macro argv_item_t hides platform details to code using it.
- */
-
-#ifdef __VMS
-#define argv_item_t __char_ptr32
-#else
-#define argv_item_t char *
-#endif
-
-
-/*
- * We use this ZERO_NULL to avoid picky compiler warnings,
- * when assigning a NULL pointer to a function pointer var.
- */
-
-#define ZERO_NULL 0
-
-
-#endif /* __SETUP_ONCE_H */
-
+++ /dev/null
-#include "ares_setup.h"
-
-
-/* only do the following on windows
- */
-#if (defined(WIN32) || defined(WATT32)) && !defined(MSDOS)
-
-#ifdef __WATCOMC__
-/*
- * Watcom needs a DllMain() in order to initialise the clib startup code.
- */
-BOOL
-WINAPI DllMain (HINSTANCE hnd, DWORD reason, LPVOID reserved)
-{
- (void) hnd;
- (void) reason;
- (void) reserved;
- return (TRUE);
-}
-#endif
-
-#endif /* WIN32 builds only */
# Use make -f Makefile.gcc PREFIX=i686-w64-mingw32-
# for cross compilation
-CC = $(PREFIX)gcc
-AR = $(PREFIX)ar
+CC ?= $(PREFIX)gcc
+AR ?= $(PREFIX)ar
E=.exe
-CFLAGS=-g --std=gnu89 -D_WIN32_WINNT=0x0501 -Ic-ares/config_win32
+CFLAGS=$(CPPFLAGS) -g --std=gnu89 -D_WIN32_WINNT=0x0501 -Isrc/ares/config_win32
LINKFLAGS=-lm
-CARES_OBJS += c-ares/windows_port.o
+CARES_OBJS += src/ares/windows_port.o
RUNNER_CFLAGS=$(CFLAGS) -D_GNU_SOURCE # Need _GNU_SOURCE for strdup?
RUNNER_LINKFLAGS=$(LINKFLAGS)
RUNNER_LIBS=-lws2_32
RUNNER_SRC=test/runner-win.c
-uv.a: uv-win.o uv-common.o uv-eio.o eio/eio.o $(CARES_OBJS)
- $(AR) rcs uv.a uv-win.o uv-common.o uv-eio.o eio/eio.o $(CARES_OBJS)
+uv.a: src/uv-win.o src/uv-common.o src/uv-eio.o src/eio/eio.o $(CARES_OBJS)
+ $(AR) rcs uv.a src/uv-win.o src/uv-common.o src/uv-eio.o src/eio/eio.o $(CARES_OBJS)
-uv-win.o: uv-win.c uv.h uv-win.h
- $(CC) $(CFLAGS) -c uv-win.c -o uv-win.o
+src/uv-win.o: src/uv-win.c include/uv.h include/uv-win.h
+ $(CC) $(CFLAGS) -c src/uv-win.c -o src/uv-win.o
-uv-common.o: uv-common.c uv.h uv-win.h
- $(CC) $(CFLAGS) -c uv-common.c -o uv-common.o
+src/uv-common.o: src/uv-common.c include/uv.h include/uv-win.h
+ $(CC) $(CFLAGS) -c src/uv-common.c -o src/uv-common.o
EIO_CPPFLAGS += $(CPPFLAGS)
EIO_CPPFLAGS += -DEIO_CONFIG_H=\"$(EIO_CONFIG)\"
EIO_CPPFLAGS += -DEIO_STACKSIZE=65536
EIO_CPPFLAGS += -D_GNU_SOURCE
-eio/eio.o: eio/eio.c
- $(CC) $(EIO_CPPFLAGS) $(CFLAGS) -c eio/eio.c -o eio/eio.o
+src/eio/eio.o: src/eio/eio.c
+ $(CC) $(EIO_CPPFLAGS) $(CFLAGS) -c src/eio/eio.c -o src/eio/eio.o
-uv-eio.o: uv-eio.c
- $(CC) $(CPPFLAGS) -Ieio/ $(CFLAGS) -c uv-eio.c -o uv-eio.o
+src/uv-eio.o: src/uv-eio.c
+ $(CC) $(CPPFLAGS) -Isrc/eio/ $(CFLAGS) -c src/uv-eio.c -o src/uv-eio.o
clean-platform:
- -rm -f c-ares/*.o
+ -rm -f src/ares/*.o
+ -rm -f src/eio/*.o
distclean-platform:
- -rm -f c-ares/*.o
+ -rm -f src/ares/*.o
+ -rm -f src/eio/*.o
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
-CC = $(PREFIX)gcc
-AR = $(PREFIX)ar
+CC ?= $(PREFIX)gcc
+AR ?= $(PREFIX)ar
E=
CFLAGS=--std=gnu89 -g
+CPPFLAGS += -Isrc/ev
LINKFLAGS=-lm
CPPFLAGS += -D_LARGEFILE_SOURCE
ifeq (SunOS,$(uname_S))
EV_CONFIG=config_sunos.h
EIO_CONFIG=config_sunos.h
-CPPFLAGS += -Ic-ares/config_sunos
+CPPFLAGS += -Isrc/ares/config_sunos
LINKFLAGS+=-lsocket -lnsl
UV_OS_FILE=uv-sunos.c
endif
ifeq (Darwin,$(uname_S))
EV_CONFIG=config_darwin.h
EIO_CONFIG=config_darwin.h
-CPPFLAGS += -Ic-ares/config_darwin
+CPPFLAGS += -Isrc/ares/config_darwin
LINKFLAGS+=-framework CoreServices
UV_OS_FILE=uv-darwin.c
endif
ifeq (Linux,$(uname_S))
EV_CONFIG=config_linux.h
EIO_CONFIG=config_linux.h
-CPPFLAGS += -Ic-ares/config_linux
+CPPFLAGS += -Isrc/ares/config_linux
LINKFLAGS+=-lrt
UV_OS_FILE=uv-linux.c
endif
ifeq (FreeBSD,$(uname_S))
EV_CONFIG=config_freebsd.h
EIO_CONFIG=config_freebsd.h
-CPPFLAGS += -Ic-ares/config_freebsd
+CPPFLAGS += -Isrc/ares/config_freebsd
LINKFLAGS+=
UV_OS_FILE=uv-freebsd.c
endif
ifneq (,$(findstring CYGWIN,$(uname_S)))
EV_CONFIG=config_cygwin.h
EIO_CONFIG=config_cygwin.h
-CPPFLAGS += -Ic-ares/config_cygwin
+CPPFLAGS += -Isrc/ares/config_cygwin
LINKFLAGS+=
UV_OS_FILE=uv-cygwin.c
endif
RUNNER_LIBS=
RUNNER_SRC=test/runner-unix.c
-uv.a: uv-unix.o uv-common.o uv-platform.o ev/ev.o uv-eio.o eio/eio.o $(CARES_OBJS)
- $(AR) rcs uv.a uv-unix.o uv-platform.o uv-common.o uv-eio.o ev/ev.o \
- eio/eio.o $(CARES_OBJS)
+uv.a: src/uv-unix.o src/uv-common.o src/uv-platform.o src/ev/ev.o src/uv-eio.o src/eio/eio.o $(CARES_OBJS)
+ $(AR) rcs uv.a src/uv-unix.o src/uv-platform.o src/uv-common.o src/uv-eio.o src/ev/ev.o \
+ src/eio/eio.o $(CARES_OBJS)
-uv-platform.o: $(UV_OS_FILE) uv.h uv-unix.h
- $(CC) $(CPPFLAGS) $(CFLAGS) -c $(UV_OS_FILE) -o uv-platform.o
+src/uv-platform.o: src/$(UV_OS_FILE) include/uv.h include/uv-unix.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c src/$(UV_OS_FILE) -o src/uv-platform.o
-uv-unix.o: uv-unix.c uv.h uv-unix.h
- $(CC) $(CPPFLAGS) -Ieio $(CFLAGS) -c uv-unix.c -o uv-unix.o
+src/uv-unix.o: src/uv-unix.c include/uv.h include/uv-unix.h
+ $(CC) $(CPPFLAGS) -Ieio $(CFLAGS) -c src/uv-unix.c -o src/uv-unix.o
-uv-common.o: uv-common.c uv.h uv-unix.h
- $(CC) $(CPPFLAGS) $(CFLAGS) -c uv-common.c -o uv-common.o
+src/uv-common.o: src/uv-common.c include/uv.h include/uv-unix.h
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c src/uv-common.c -o src/uv-common.o
-ev/ev.o: ev/ev.c
- $(CC) $(CPPFLAGS) $(CFLAGS) -c ev/ev.c -o ev/ev.o -DEV_CONFIG_H=\"$(EV_CONFIG)\"
+src/ev/ev.o: src/ev/ev.c
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c src/ev/ev.c -o src/ev/ev.o -DEV_CONFIG_H=\"$(EV_CONFIG)\"
EIO_CPPFLAGS += $(CPPFLAGS)
EIO_CPPFLAGS += -DEIO_STACKSIZE=65536
EIO_CPPFLAGS += -D_GNU_SOURCE
-eio/eio.o: eio/eio.c
- $(CC) $(EIO_CPPFLAGS) $(CFLAGS) -c eio/eio.c -o eio/eio.o
+src/eio/eio.o: src/eio/eio.c
+ $(CC) $(EIO_CPPFLAGS) $(CFLAGS) -c src/eio/eio.c -o src/eio/eio.o
-uv-eio.o: uv-eio.c
- $(CC) $(CPPFLAGS) -Ieio/ $(CFLAGS) -c uv-eio.c -o uv-eio.o
+src/uv-eio.o: src/uv-eio.c
+ $(CC) $(CPPFLAGS) -Isrc/eio/ $(CFLAGS) -c src/uv-eio.c -o src/uv-eio.o
clean-platform:
- -rm -f c-ares/*.o
- -rm -f ev/*.o
- -rm -f eio/*.o
+ -rm -f src/ares/*.o
+ -rm -f src/ev/*.o
+ -rm -f src/eio/*.o
-rm -rf test/run-tests.dSYM run-benchmarks.dSYM
distclean-platform:
- -rm -f c-ares/*.o
- -rm -f ev/*.o
- -rm -f eio/*.o
+ -rm -f src/ares/*.o
+ -rm -f src/ev/*.o
+ -rm -f src/eio/*.o
-rm -rf test/run-tests.dSYM run-benchmarks.dSYM
+++ /dev/null
-Warning: this is not actual API but desired API.
-
-# `uv_handle_t`
-
-This is the abstract base class of all types of handles. All handles have in
-common:
-
-* When handles are initialized, the reference count to the event loop is
- increased by one.
-
-* The user owns the `uv_handle_t` memory and is in charge of freeing it.
-
-* In order to free resources associated with a handle, one must `uv_close()`
- and wait for the `uv_close_cb` callback. After the close callback has been
- made, the user is allowed to the `uv_handle_t` object.
-
-* The `uv_close_cb` is always made directly off the event loop. That is, it
- is not called from `uv_close()`.
-
-
-
-# `uv_tcp_server_t`
-
-A TCP server class that is a subclass of `uv_handle_t`. This can be bound to
-an address and begin accepting new TCP sockets.
-
- int uv_bind4(uv_tcp_server_t* tcp_server, struct sockaddr_in* address);
- int uv_bind6(uv_tcp_server_t* tcp_server, struct sockaddr_in6* address);
-
-Binds the TCP server to an address. The `address` can be created with
-`uv_ip4_addr()`. Call this before `uv_listen()`
-
-Returns zero on success, -1 on failure. Errors in order of least-seriousness:
-
-* `UV_EADDRINUSE` There is already another socket bound to the specified
- address.
-
-* `UV_EADDRNOTAVAIL` The `address` parameter is an IP address that is not
-
-* `UV_EINVAL` The server is already bound to an address.
-
-* `UV_EFAULT` Memory of `address` parameter is unintelligible.
-
-
- int uv_listen(uv_tcp_server_t*, int backlog, uv_connection_cb cb);
-
-Begins listening for connections. The accept callback is level-triggered.
-
-
- int uv_accept(uv_tcp_server_t* server,
- uv_tcp_t* client);
-
-Accepts a connection. This should be called after the accept callback is
-made. The `client` parameter should be uninitialized memory; `uv_accept` is
-used instead of `uv_tcp_init` for server-side `uv_tcp_t` initialization.
-
-Return value 0 indicates success, -1 failure. Possible errors:
-
-* `UV_EAGAIN` There are no connections. Wait for the `uv_connection_cb` callback
- to be called again.
-
-* `UV_EFAULT` The memory of either `server` is unintelligible.
-
-
-
-# `uv_stream_t`
-
-An abstract subclass of `uv_handle_t`. Streams represent something that
-reads and/or writes data. Streams can be half or full-duplex. TCP sockets
-are streams, files are streams with offsets.
-
- int uv_read_start(uv_stream_t* stream,
- uv_alloc_cb alloc_cb,
- uv_read_cb read_cb);
-
-Starts the stream reading continuously. The `alloc_cb` is used to allow the
-user to implement various means of supplying the stream with buffers to
-fill. The `read_cb` returns buffers to the user filled with data.
-
-Sometimes the buffers returned to the user do not contain data. This does
-not indicate EOF as in other systems. EOF is made via the `uv_eof_cb` which
-can be set like this `uv_set_eof_cb(stream, eof_cb);`
-
-
- int uv_read_stop(uv_stream_t* stream);
-
-Stops reading from the stream.
-
- int uv_write_req_init(uv_write_req_t*,
- uv_stream_t*,
- uv_buf_t bufs[],
- int butcnf);
-
-Initiates a write request on a stream.
-
- int uv_shutdown_req_init(uv_shutdown_req_t*, uv_stream_t*)
-
-Initiates a shutdown of outgoing data once the write queue drains.
-
-
-
-# `uv_tcp_t`
-
-The TCP handle class represents one endpoint of a duplex TCP stream.
-`uv_tcp_t` is a subclass of `uv_stream_t`. A TCP handle can represent a
-client side connection (one that has been used with uv_connect_req_init`)
-or a server-side connection (one that was initialized with `uv_accept`)
-
- int uv_connect_req_init(uv_connect_req_t* req,
- uv_tcp_t* socket,
- struct sockaddr* addr);
-
-Initiates a request to open a connection.
-
-
-
-# `uv_req_t`
-
-Abstract class represents an asynchronous request. This is a subclass of `uv_handle_t`.
-
-
-# `uv_connect_req_t`
-
-Subclass of `uv_req_t`. Represents a request for a TCP connection. Operates
-on `uv_tcp_t` handles. Like other types of requests the `close_cb` indicates
-completion of the request.
-
- int uv_connect_req_init(uv_connect_req_t* req,
- uv_tcp_t* socket,
- struct sockaddr* addr);
-
-Initializes the connection request. Returning 0 indicates success, -1 if
-there was an error. The following values can be retrieved from
-`uv_last_error` in the case of an error:
-
-* ???
-
-
-# `uv_shutdown_req_t`
-
-Subclass of `uv_req_t`. Represents an ongoing shutdown request. Once the
-write queue of the parent `uv_stream_t` is drained, the outbound data
-channel is shutdown. Once a shutdown request is initiated on a stream, the
-stream will allow no more writes.
-
- int uv_shutdown_req_init(uv_shutdown_req_t*,
- uv_stream_t* parent);
-
-Initializes the shutdown request.
-
-
-# `uv_write_req_t`
-
- int uv_write_req_init(uv_write_req_t*,
- uv_stream_t*,
- uv_buf_t bufs[],
- int butcnf);
-
-Initiates a write request on a stream.
+++ /dev/null
-Revision history for libeio
-
-TODO: maybe add mincore support? available on at least darwin, solaris, linux, freebsd
-TODO: openbsd requites stdint.h for intptr_t - why posix?
-
-1.0
- - readdir: correctly handle malloc failures.
- - readdir: new flags argument, can return inode
- and possibly filetype, can sort in various ways.
- - readdir: stop immediately when cancelled, do
- not continue reading the directory.
- - fix return value of eio_sendfile_sync.
- - include sys/mman.h for msync.
- - added EIO_STACKSIZE.
- - added msync, mtouch support (untested).
- - added sync_file_range (untested).
- - fixed custom support.
- - use a more robust feed-add detection method.
- - "outbundled" from IO::AIO.
- - eio_set_max_polltime did not properly convert time to ticks.
- - tentatively support darwin in sendfile.
- - fix freebsd/darwin sendfile.
- - also use sendfile emulation for ENOTSUP and EOPNOTSUPP
- error codes.
- - add OS-independent EIO_MT_* and EIO_MS_* flag enums.
- - add eio_statvfs/eio_fstatvfs.
- - add eio_mlock/eio_mlockall and OS-independent MCL_* flag enums.
- - no longer set errno to 0 before making syscalls, this only lures
- people into the trap of believing errno shows success or failure.
- - "fix" demo.c so that it works as non-root.
- - suppoert utimes seperately from futimes, as some systems have
- utimes but not futimes.
- - use _POSIX_MEMLOCK_RANGE for mlock.
- - do not (errornously) overwrite CFLAGS in configure.ac.
-
+++ /dev/null
-All files in libeio are Copyright (C)2007,2008 Marc Alexander Lehmann.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials provided
- with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Alternatively, the contents of this package may be used under the terms
-of the GNU General Public License ("GPL") version 2 or any later version,
-in which case the provisions of the GPL are applicable instead of the
-above. If you wish to allow the use of your version of this package only
-under the terms of the GPL and not to allow others to use your version of
-this file under the BSD license, indicate your decision by deleting the
-provisions above and replace them with the notice and other provisions
-required by the GPL in this and the other files of this package. If you do
-not delete the provisions above, a recipient may use your version of this
-file under either the BSD or the GPL.
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- case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
- *[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Fix-up fallback echo if it was mangled by the above quoting rules.
-case \$lt_ECHO in
-*'\\\[$]0 --fallback-echo"')dnl "
- lt_ECHO=\`\$ECHO "X\$lt_ECHO" | \$Xsed -e 's/\\\\\\\\\\\\\\\[$]0 --fallback-echo"\[$]/\[$]0 --fallback-echo"/'\`
- ;;
-esac
-
-_LT_OUTPUT_LIBTOOL_INIT
-])
-
-
-# LT_OUTPUT
-# ---------
-# This macro allows early generation of the libtool script (before
-# AC_OUTPUT is called), incase it is used in configure for compilation
-# tests.
-AC_DEFUN([LT_OUTPUT],
-[: ${CONFIG_LT=./config.lt}
-AC_MSG_NOTICE([creating $CONFIG_LT])
-cat >"$CONFIG_LT" <<_LTEOF
-#! $SHELL
-# Generated by $as_me.
-# Run this file to recreate a libtool stub with the current configuration.
-
-lt_cl_silent=false
-SHELL=\${CONFIG_SHELL-$SHELL}
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AS_SHELL_SANITIZE
-_AS_PREPARE
-
-exec AS_MESSAGE_FD>&1
-exec AS_MESSAGE_LOG_FD>>config.log
-{
- echo
- AS_BOX([Running $as_me.])
-} >&AS_MESSAGE_LOG_FD
-
-lt_cl_help="\
-\`$as_me' creates a local libtool stub from the current configuration,
-for use in further configure time tests before the real libtool is
-generated.
-
-Usage: $[0] [[OPTIONS]]
-
- -h, --help print this help, then exit
- -V, --version print version number, then exit
- -q, --quiet do not print progress messages
- -d, --debug don't remove temporary files
-
-Report bugs to <bug-libtool@gnu.org>."
-
-lt_cl_version="\
-m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
-m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
-configured by $[0], generated by m4_PACKAGE_STRING.
-
-Copyright (C) 2008 Free Software Foundation, Inc.
-This config.lt script is free software; the Free Software Foundation
-gives unlimited permision to copy, distribute and modify it."
-
-while test $[#] != 0
-do
- case $[1] in
- --version | --v* | -V )
- echo "$lt_cl_version"; exit 0 ;;
- --help | --h* | -h )
- echo "$lt_cl_help"; exit 0 ;;
- --debug | --d* | -d )
- debug=: ;;
- --quiet | --q* | --silent | --s* | -q )
- lt_cl_silent=: ;;
-
- -*) AC_MSG_ERROR([unrecognized option: $[1]
-Try \`$[0] --help' for more information.]) ;;
-
- *) AC_MSG_ERROR([unrecognized argument: $[1]
-Try \`$[0] --help' for more information.]) ;;
- esac
- shift
-done
-
-if $lt_cl_silent; then
- exec AS_MESSAGE_FD>/dev/null
-fi
-_LTEOF
-
-cat >>"$CONFIG_LT" <<_LTEOF
-_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AC_MSG_NOTICE([creating $ofile])
-_LT_OUTPUT_LIBTOOL_COMMANDS
-AS_EXIT(0)
-_LTEOF
-chmod +x "$CONFIG_LT"
-
-# configure is writing to config.log, but config.lt does its own redirection,
-# appending to config.log, which fails on DOS, as config.log is still kept
-# open by configure. Here we exec the FD to /dev/null, effectively closing
-# config.log, so it can be properly (re)opened and appended to by config.lt.
-if test "$no_create" != yes; then
- lt_cl_success=:
- test "$silent" = yes &&
- lt_config_lt_args="$lt_config_lt_args --quiet"
- exec AS_MESSAGE_LOG_FD>/dev/null
- $SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
- exec AS_MESSAGE_LOG_FD>>config.log
- $lt_cl_success || AS_EXIT(1)
-fi
-])# LT_OUTPUT
-
-
-# _LT_CONFIG(TAG)
-# ---------------
-# If TAG is the built-in tag, create an initial libtool script with a
-# default configuration from the untagged config vars. Otherwise add code
-# to config.status for appending the configuration named by TAG from the
-# matching tagged config vars.
-m4_defun([_LT_CONFIG],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_CONFIG_SAVE_COMMANDS([
- m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
- m4_if(_LT_TAG, [C], [
- # See if we are running on zsh, and set the options which allow our
- # commands through without removal of \ escapes.
- if test -n "${ZSH_VERSION+set}" ; then
- setopt NO_GLOB_SUBST
- fi
-
- cfgfile="${ofile}T"
- trap "$RM \"$cfgfile\"; exit 1" 1 2 15
- $RM "$cfgfile"
-
- cat <<_LT_EOF >> "$cfgfile"
-#! $SHELL
-
-# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
-# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
-# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
-# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-#
-_LT_COPYING
-_LT_LIBTOOL_TAGS
-
-# ### BEGIN LIBTOOL CONFIG
-_LT_LIBTOOL_CONFIG_VARS
-_LT_LIBTOOL_TAG_VARS
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
- case $host_os in
- aix3*)
- cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program. For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
- COLLECT_NAMES=
- export COLLECT_NAMES
-fi
-_LT_EOF
- ;;
- esac
-
- _LT_PROG_LTMAIN
-
- # We use sed instead of cat because bash on DJGPP gets confused if
- # if finds mixed CR/LF and LF-only lines. Since sed operates in
- # text mode, it properly converts lines to CR/LF. This bash problem
- # is reportedly fixed, but why not run on old versions too?
- sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- _LT_PROG_XSI_SHELLFNS
-
- sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- mv -f "$cfgfile" "$ofile" ||
- (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
- chmod +x "$ofile"
-],
-[cat <<_LT_EOF >> "$ofile"
-
-dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
-dnl in a comment (ie after a #).
-# ### BEGIN LIBTOOL TAG CONFIG: $1
-_LT_LIBTOOL_TAG_VARS(_LT_TAG)
-# ### END LIBTOOL TAG CONFIG: $1
-_LT_EOF
-])dnl /m4_if
-],
-[m4_if([$1], [], [
- PACKAGE='$PACKAGE'
- VERSION='$VERSION'
- TIMESTAMP='$TIMESTAMP'
- RM='$RM'
- ofile='$ofile'], [])
-])dnl /_LT_CONFIG_SAVE_COMMANDS
-])# _LT_CONFIG
-
-
-# LT_SUPPORTED_TAG(TAG)
-# ---------------------
-# Trace this macro to discover what tags are supported by the libtool
-# --tag option, using:
-# autoconf --trace 'LT_SUPPORTED_TAG:$1'
-AC_DEFUN([LT_SUPPORTED_TAG], [])
-
-
-# C support is built-in for now
-m4_define([_LT_LANG_C_enabled], [])
-m4_define([_LT_TAGS], [])
-
-
-# LT_LANG(LANG)
-# -------------
-# Enable libtool support for the given language if not already enabled.
-AC_DEFUN([LT_LANG],
-[AC_BEFORE([$0], [LT_OUTPUT])dnl
-m4_case([$1],
- [C], [_LT_LANG(C)],
- [C++], [_LT_LANG(CXX)],
- [Java], [_LT_LANG(GCJ)],
- [Fortran 77], [_LT_LANG(F77)],
- [Fortran], [_LT_LANG(FC)],
- [Windows Resource], [_LT_LANG(RC)],
- [m4_ifdef([_LT_LANG_]$1[_CONFIG],
- [_LT_LANG($1)],
- [m4_fatal([$0: unsupported language: "$1"])])])dnl
-])# LT_LANG
-
-
-# _LT_LANG(LANGNAME)
-# ------------------
-m4_defun([_LT_LANG],
-[m4_ifdef([_LT_LANG_]$1[_enabled], [],
- [LT_SUPPORTED_TAG([$1])dnl
- m4_append([_LT_TAGS], [$1 ])dnl
- m4_define([_LT_LANG_]$1[_enabled], [])dnl
- _LT_LANG_$1_CONFIG($1)])dnl
-])# _LT_LANG
-
-
-# _LT_LANG_DEFAULT_CONFIG
-# -----------------------
-m4_defun([_LT_LANG_DEFAULT_CONFIG],
-[AC_PROVIDE_IFELSE([AC_PROG_CXX],
- [LT_LANG(CXX)],
- [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_F77],
- [LT_LANG(F77)],
- [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_FC],
- [LT_LANG(FC)],
- [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
-
-dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
-dnl pulling things in needlessly.
-AC_PROVIDE_IFELSE([AC_PROG_GCJ],
- [LT_LANG(GCJ)],
- [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
- [LT_LANG(GCJ)],
- [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
- [LT_LANG(GCJ)],
- [m4_ifdef([AC_PROG_GCJ],
- [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
- m4_ifdef([A][M_PROG_GCJ],
- [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
- m4_ifdef([LT_PROG_GCJ],
- [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
-
-AC_PROVIDE_IFELSE([LT_PROG_RC],
- [LT_LANG(RC)],
- [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
-])# _LT_LANG_DEFAULT_CONFIG
-
-# Obsolete macros:
-AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
-AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
-AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
-AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
-dnl AC_DEFUN([AC_LIBTOOL_F77], [])
-dnl AC_DEFUN([AC_LIBTOOL_FC], [])
-dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
-
-
-# _LT_TAG_COMPILER
-# ----------------
-m4_defun([_LT_TAG_COMPILER],
-[AC_REQUIRE([AC_PROG_CC])dnl
-
-_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
-_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
-_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
-_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-])# _LT_TAG_COMPILER
-
-
-# _LT_COMPILER_BOILERPLATE
-# ------------------------
-# Check for compiler boilerplate output or warnings with
-# the simple compiler test code.
-m4_defun([_LT_COMPILER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-])# _LT_COMPILER_BOILERPLATE
-
-
-# _LT_LINKER_BOILERPLATE
-# ----------------------
-# Check for linker boilerplate output or warnings with
-# the simple link test code.
-m4_defun([_LT_LINKER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-])# _LT_LINKER_BOILERPLATE
-
-# _LT_REQUIRED_DARWIN_CHECKS
-# -------------------------
-m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
- case $host_os in
- rhapsody* | darwin*)
- AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
- AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
- AC_CHECK_TOOL([LIPO], [lipo], [:])
- AC_CHECK_TOOL([OTOOL], [otool], [:])
- AC_CHECK_TOOL([OTOOL64], [otool64], [:])
- _LT_DECL([], [DSYMUTIL], [1],
- [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
- _LT_DECL([], [NMEDIT], [1],
- [Tool to change global to local symbols on Mac OS X])
- _LT_DECL([], [LIPO], [1],
- [Tool to manipulate fat objects and archives on Mac OS X])
- _LT_DECL([], [OTOOL], [1],
- [ldd/readelf like tool for Mach-O binaries on Mac OS X])
- _LT_DECL([], [OTOOL64], [1],
- [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
-
- AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
- [lt_cv_apple_cc_single_mod=no
- if test -z "${LT_MULTI_MODULE}"; then
- # By default we will add the -single_module flag. You can override
- # by either setting the environment variable LT_MULTI_MODULE
- # non-empty at configure time, or by adding -multi_module to the
- # link flags.
- rm -rf libconftest.dylib*
- echo "int foo(void){return 1;}" > conftest.c
- echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
- $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
- -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
- _lt_result=$?
- if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
- lt_cv_apple_cc_single_mod=yes
- else
- cat conftest.err >&AS_MESSAGE_LOG_FD
- fi
- rm -rf libconftest.dylib*
- rm -f conftest.*
- fi])
- AC_CACHE_CHECK([for -exported_symbols_list linker flag],
- [lt_cv_ld_exported_symbols_list],
- [lt_cv_ld_exported_symbols_list=no
- save_LDFLAGS=$LDFLAGS
- echo "_main" > conftest.sym
- LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [lt_cv_ld_exported_symbols_list=yes],
- [lt_cv_ld_exported_symbols_list=no])
- LDFLAGS="$save_LDFLAGS"
- ])
- case $host_os in
- rhapsody* | darwin1.[[012]])
- _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
- darwin1.*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
- darwin*) # darwin 5.x on
- # if running on 10.5 or later, the deployment target defaults
- # to the OS version, if on x86, and 10.4, the deployment
- # target defaults to 10.4. Don't you love it?
- case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
- 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
- 10.[[012]]*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
- 10.*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
- esac
- ;;
- esac
- if test "$lt_cv_apple_cc_single_mod" = "yes"; then
- _lt_dar_single_mod='$single_module'
- fi
- if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
- _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
- else
- _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
- fi
- if test "$DSYMUTIL" != ":"; then
- _lt_dsymutil='~$DSYMUTIL $lib || :'
- else
- _lt_dsymutil=
- fi
- ;;
- esac
-])
-
-
-# _LT_DARWIN_LINKER_FEATURES
-# --------------------------
-# Checks for linker and compiler features on darwin
-m4_defun([_LT_DARWIN_LINKER_FEATURES],
-[
- m4_require([_LT_REQUIRED_DARWIN_CHECKS])
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_automatic, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- _LT_TAGVAR(whole_archive_flag_spec, $1)=''
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined"
- case $cc_basename in
- ifort*) _lt_dar_can_shared=yes ;;
- *) _lt_dar_can_shared=$GCC ;;
- esac
- if test "$_lt_dar_can_shared" = "yes"; then
- output_verbose_link_cmd=echo
- _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
- _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
- _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
- m4_if([$1], [CXX],
-[ if test "$lt_cv_apple_cc_single_mod" != "yes"; then
- _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
- fi
-],[])
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
-])
-
-# _LT_SYS_MODULE_PATH_AIX
-# -----------------------
-# Links a minimal program and checks the executable
-# for the system default hardcoded library path. In most cases,
-# this is /usr/lib:/lib, but when the MPI compilers are used
-# the location of the communication and MPI libs are included too.
-# If we don't find anything, use the default library path according
-# to the aix ld manual.
-m4_defun([_LT_SYS_MODULE_PATH_AIX],
-[m4_require([_LT_DECL_SED])dnl
-AC_LINK_IFELSE(AC_LANG_PROGRAM,[
-lt_aix_libpath_sed='
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\(.*\)$/\1/
- p
- }
- }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
- aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi],[])
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-])# _LT_SYS_MODULE_PATH_AIX
-
-
-# _LT_SHELL_INIT(ARG)
-# -------------------
-m4_define([_LT_SHELL_INIT],
-[ifdef([AC_DIVERSION_NOTICE],
- [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],
- [AC_DIVERT_PUSH(NOTICE)])
-$1
-AC_DIVERT_POP
-])# _LT_SHELL_INIT
-
-
-# _LT_PROG_ECHO_BACKSLASH
-# -----------------------
-# Add some code to the start of the generated configure script which
-# will find an echo command which doesn't interpret backslashes.
-m4_defun([_LT_PROG_ECHO_BACKSLASH],
-[_LT_SHELL_INIT([
-# Check that we are running under the correct shell.
-SHELL=${CONFIG_SHELL-/bin/sh}
-
-case X$lt_ECHO in
-X*--fallback-echo)
- # Remove one level of quotation (which was required for Make).
- ECHO=`echo "$lt_ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`
- ;;
-esac
-
-ECHO=${lt_ECHO-echo}
-if test "X[$]1" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
-elif test "X[$]1" = X--fallback-echo; then
- # Avoid inline document here, it may be left over
- :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' ; then
- # Yippee, $ECHO works!
- :
-else
- # Restart under the correct shell.
- exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}
-fi
-
-if test "X[$]1" = X--fallback-echo; then
- # used as fallback echo
- shift
- cat <<_LT_EOF
-[$]*
-_LT_EOF
- exit 0
-fi
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-if test -z "$lt_ECHO"; then
- if test "X${echo_test_string+set}" != Xset; then
- # find a string as large as possible, as long as the shell can cope with it
- for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do
- # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
- if { echo_test_string=`eval $cmd`; } 2>/dev/null &&
- { test "X$echo_test_string" = "X$echo_test_string"; } 2>/dev/null
- then
- break
- fi
- done
- fi
-
- if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- :
- else
- # The Solaris, AIX, and Digital Unix default echo programs unquote
- # backslashes. This makes it impossible to quote backslashes using
- # echo "$something" | sed 's/\\/\\\\/g'
- #
- # So, first we look for a working echo in the user's PATH.
-
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for dir in $PATH /usr/ucb; do
- IFS="$lt_save_ifs"
- if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
- test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- ECHO="$dir/echo"
- break
- fi
- done
- IFS="$lt_save_ifs"
-
- if test "X$ECHO" = Xecho; then
- # We didn't find a better echo, so look for alternatives.
- if test "X`{ print -r '\t'; } 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`{ print -r "$echo_test_string"; } 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- # This shell has a builtin print -r that does the trick.
- ECHO='print -r'
- elif { test -f /bin/ksh || test -f /bin/ksh$ac_exeext; } &&
- test "X$CONFIG_SHELL" != X/bin/ksh; then
- # If we have ksh, try running configure again with it.
- ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
- export ORIGINAL_CONFIG_SHELL
- CONFIG_SHELL=/bin/ksh
- export CONFIG_SHELL
- exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}
- else
- # Try using printf.
- ECHO='printf %s\n'
- if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- # Cool, printf works
- :
- elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
- test "X$echo_testing_string" = 'X\t' &&
- echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
- export CONFIG_SHELL
- SHELL="$CONFIG_SHELL"
- export SHELL
- ECHO="$CONFIG_SHELL [$]0 --fallback-echo"
- elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
- test "X$echo_testing_string" = 'X\t' &&
- echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- ECHO="$CONFIG_SHELL [$]0 --fallback-echo"
- else
- # maybe with a smaller string...
- prev=:
-
- for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do
- if { test "X$echo_test_string" = "X`eval $cmd`"; } 2>/dev/null
- then
- break
- fi
- prev="$cmd"
- done
-
- if test "$prev" != 'sed 50q "[$]0"'; then
- echo_test_string=`eval $prev`
- export echo_test_string
- exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}
- else
- # Oops. We lost completely, so just stick with echo.
- ECHO=echo
- fi
- fi
- fi
- fi
- fi
-fi
-
-# Copy echo and quote the copy suitably for passing to libtool from
-# the Makefile, instead of quoting the original, which is used later.
-lt_ECHO=$ECHO
-if test "X$lt_ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then
- lt_ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"
-fi
-
-AC_SUBST(lt_ECHO)
-])
-_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
-_LT_DECL([], [ECHO], [1],
- [An echo program that does not interpret backslashes])
-])# _LT_PROG_ECHO_BACKSLASH
-
-
-# _LT_ENABLE_LOCK
-# ---------------
-m4_defun([_LT_ENABLE_LOCK],
-[AC_ARG_ENABLE([libtool-lock],
- [AS_HELP_STRING([--disable-libtool-lock],
- [avoid locking (might break parallel builds)])])
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.$ac_objext` in
- *ELF-32*)
- HPUX_IA64_MODE="32"
- ;;
- *ELF-64*)
- HPUX_IA64_MODE="64"
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-*-*-irix6*)
- # Find out which ABI we are using.
- echo '[#]line __oline__ "configure"' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- if test "$lt_cv_prog_gnu_ld" = yes; then
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -melf32bsmip"
- ;;
- *N32*)
- LD="${LD-ld} -melf32bmipn32"
- ;;
- *64-bit*)
- LD="${LD-ld} -melf64bmip"
- ;;
- esac
- else
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -32"
- ;;
- *N32*)
- LD="${LD-ld} -n32"
- ;;
- *64-bit*)
- LD="${LD-ld} -64"
- ;;
- esac
- fi
- fi
- rm -rf conftest*
- ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.o` in
- *32-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_i386_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_i386"
- ;;
- ppc64-*linux*|powerpc64-*linux*)
- LD="${LD-ld} -m elf32ppclinux"
- ;;
- s390x-*linux*)
- LD="${LD-ld} -m elf_s390"
- ;;
- sparc64-*linux*)
- LD="${LD-ld} -m elf32_sparc"
- ;;
- esac
- ;;
- *64-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_x86_64_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- ppc*-*linux*|powerpc*-*linux*)
- LD="${LD-ld} -m elf64ppc"
- ;;
- s390*-*linux*|s390*-*tpf*)
- LD="${LD-ld} -m elf64_s390"
- ;;
- sparc*-*linux*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-
-*-*-sco3.2v5*)
- # On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -belf"
- AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
- [AC_LANG_PUSH(C)
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
- AC_LANG_POP])
- if test x"$lt_cv_cc_needs_belf" != x"yes"; then
- # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS="$SAVE_CFLAGS"
- fi
- ;;
-sparc*-*solaris*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.o` in
- *64-bit*)
- case $lt_cv_prog_gnu_ld in
- yes*) LD="${LD-ld} -m elf64_sparc" ;;
- *)
- if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
- LD="${LD-ld} -64"
- fi
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-esac
-
-need_locks="$enable_libtool_lock"
-])# _LT_ENABLE_LOCK
-
-
-# _LT_CMD_OLD_ARCHIVE
-# -------------------
-m4_defun([_LT_CMD_OLD_ARCHIVE],
-[AC_CHECK_TOOL(AR, ar, false)
-test -z "$AR" && AR=ar
-test -z "$AR_FLAGS" && AR_FLAGS=cru
-_LT_DECL([], [AR], [1], [The archiver])
-_LT_DECL([], [AR_FLAGS], [1])
-
-AC_CHECK_TOOL(STRIP, strip, :)
-test -z "$STRIP" && STRIP=:
-_LT_DECL([], [STRIP], [1], [A symbol stripping program])
-
-AC_CHECK_TOOL(RANLIB, ranlib, :)
-test -z "$RANLIB" && RANLIB=:
-_LT_DECL([], [RANLIB], [1],
- [Commands used to install an old-style archive])
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
- case $host_os in
- openbsd*)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
- ;;
- *)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
- ;;
- esac
- old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
-fi
-_LT_DECL([], [old_postinstall_cmds], [2])
-_LT_DECL([], [old_postuninstall_cmds], [2])
-_LT_TAGDECL([], [old_archive_cmds], [2],
- [Commands used to build an old-style archive])
-])# _LT_CMD_OLD_ARCHIVE
-
-
-# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------------------
-# Check whether the given compiler option works
-AC_DEFUN([_LT_COMPILER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
- [$2=no
- m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$3"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- $2=yes
- fi
- fi
- $RM conftest*
-])
-
-if test x"[$]$2" = xyes; then
- m4_if([$5], , :, [$5])
-else
- m4_if([$6], , :, [$6])
-fi
-])# _LT_COMPILER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
-
-
-# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-# [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------
-# Check whether the given linker option works
-AC_DEFUN([_LT_LINKER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
- [$2=no
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS $3"
- echo "$lt_simple_link_test_code" > conftest.$ac_ext
- if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
- # The linker can only warn and ignore the option if not recognized
- # So say no if there are warnings
- if test -s conftest.err; then
- # Append any errors to the config.log.
- cat conftest.err 1>&AS_MESSAGE_LOG_FD
- $ECHO "X$_lt_linker_boilerplate" | $Xsed -e '/^$/d' > conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if diff conftest.exp conftest.er2 >/dev/null; then
- $2=yes
- fi
- else
- $2=yes
- fi
- fi
- $RM -r conftest*
- LDFLAGS="$save_LDFLAGS"
-])
-
-if test x"[$]$2" = xyes; then
- m4_if([$4], , :, [$4])
-else
- m4_if([$5], , :, [$5])
-fi
-])# _LT_LINKER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
-
-
-# LT_CMD_MAX_LEN
-#---------------
-AC_DEFUN([LT_CMD_MAX_LEN],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-# find the maximum length of command line arguments
-AC_MSG_CHECKING([the maximum length of command line arguments])
-AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
- i=0
- teststring="ABCD"
-
- case $build_os in
- msdosdjgpp*)
- # On DJGPP, this test can blow up pretty badly due to problems in libc
- # (any single argument exceeding 2000 bytes causes a buffer overrun
- # during glob expansion). Even if it were fixed, the result of this
- # check would be larger than it should be.
- lt_cv_sys_max_cmd_len=12288; # 12K is about right
- ;;
-
- gnu*)
- # Under GNU Hurd, this test is not required because there is
- # no limit to the length of command line arguments.
- # Libtool will interpret -1 as no limit whatsoever
- lt_cv_sys_max_cmd_len=-1;
- ;;
-
- cygwin* | mingw* | cegcc*)
- # On Win9x/ME, this test blows up -- it succeeds, but takes
- # about 5 minutes as the teststring grows exponentially.
- # Worse, since 9x/ME are not pre-emptively multitasking,
- # you end up with a "frozen" computer, even though with patience
- # the test eventually succeeds (with a max line length of 256k).
- # Instead, let's just punt: use the minimum linelength reported by
- # all of the supported platforms: 8192 (on NT/2K/XP).
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- amigaos*)
- # On AmigaOS with pdksh, this test takes hours, literally.
- # So we just punt and use a minimum line length of 8192.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
- # This has been around since 386BSD, at least. Likely further.
- if test -x /sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
- elif test -x /usr/sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
- else
- lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
- fi
- # And add a safety zone
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- ;;
-
- interix*)
- # We know the value 262144 and hardcode it with a safety zone (like BSD)
- lt_cv_sys_max_cmd_len=196608
- ;;
-
- osf*)
- # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
- # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
- # nice to cause kernel panics so lets avoid the loop below.
- # First set a reasonable default.
- lt_cv_sys_max_cmd_len=16384
- #
- if test -x /sbin/sysconfig; then
- case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
- *1*) lt_cv_sys_max_cmd_len=-1 ;;
- esac
- fi
- ;;
- sco3.2v5*)
- lt_cv_sys_max_cmd_len=102400
- ;;
- sysv5* | sco5v6* | sysv4.2uw2*)
- kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
- if test -n "$kargmax"; then
- lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'`
- else
- lt_cv_sys_max_cmd_len=32768
- fi
- ;;
- *)
- lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len"; then
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- else
- # Make teststring a little bigger before we do anything with it.
- # a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8 ; do
- teststring=$teststring$teststring
- done
- SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
- # If test is not a shell built-in, we'll probably end up computing a
- # maximum length that is only half of the actual maximum length, but
- # we can't tell.
- while { test "X"`$SHELL [$]0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \
- = "XX$teststring$teststring"; } >/dev/null 2>&1 &&
- test $i != 17 # 1/2 MB should be enough
- do
- i=`expr $i + 1`
- teststring=$teststring$teststring
- done
- # Only check the string length outside the loop.
- lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
- teststring=
- # Add a significant safety factor because C++ compilers can tack on
- # massive amounts of additional arguments before passing them to the
- # linker. It appears as though 1/2 is a usable value.
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
- fi
- ;;
- esac
-])
-if test -n $lt_cv_sys_max_cmd_len ; then
- AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
-else
- AC_MSG_RESULT(none)
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-_LT_DECL([], [max_cmd_len], [0],
- [What is the maximum length of a command?])
-])# LT_CMD_MAX_LEN
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
-
-
-# _LT_HEADER_DLFCN
-# ----------------
-m4_defun([_LT_HEADER_DLFCN],
-[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
-])# _LT_HEADER_DLFCN
-
-
-# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
-# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
-# ----------------------------------------------------------------
-m4_defun([_LT_TRY_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test "$cross_compiling" = yes; then :
- [$4]
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-[#line __oline__ "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}]
-_LT_EOF
- if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
- (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) $1 ;;
- x$lt_dlneed_uscore) $2 ;;
- x$lt_dlunknown|x*) $3 ;;
- esac
- else :
- # compilation failed
- $3
- fi
-fi
-rm -fr conftest*
-])# _LT_TRY_DLOPEN_SELF
-
-
-# LT_SYS_DLOPEN_SELF
-# ------------------
-AC_DEFUN([LT_SYS_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test "x$enable_dlopen" != xyes; then
- enable_dlopen=unknown
- enable_dlopen_self=unknown
- enable_dlopen_self_static=unknown
-else
- lt_cv_dlopen=no
- lt_cv_dlopen_libs=
-
- case $host_os in
- beos*)
- lt_cv_dlopen="load_add_on"
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ;;
-
- mingw* | pw32* | cegcc*)
- lt_cv_dlopen="LoadLibrary"
- lt_cv_dlopen_libs=
- ;;
-
- cygwin*)
- lt_cv_dlopen="dlopen"
- lt_cv_dlopen_libs=
- ;;
-
- darwin*)
- # if libdl is installed we need to link against it
- AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
- lt_cv_dlopen="dyld"
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ])
- ;;
-
- *)
- AC_CHECK_FUNC([shl_load],
- [lt_cv_dlopen="shl_load"],
- [AC_CHECK_LIB([dld], [shl_load],
- [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"],
- [AC_CHECK_FUNC([dlopen],
- [lt_cv_dlopen="dlopen"],
- [AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
- [AC_CHECK_LIB([svld], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
- [AC_CHECK_LIB([dld], [dld_link],
- [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"])
- ])
- ])
- ])
- ])
- ])
- ;;
- esac
-
- if test "x$lt_cv_dlopen" != xno; then
- enable_dlopen=yes
- else
- enable_dlopen=no
- fi
-
- case $lt_cv_dlopen in
- dlopen)
- save_CPPFLAGS="$CPPFLAGS"
- test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
- save_LDFLAGS="$LDFLAGS"
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
- save_LIBS="$LIBS"
- LIBS="$lt_cv_dlopen_libs $LIBS"
-
- AC_CACHE_CHECK([whether a program can dlopen itself],
- lt_cv_dlopen_self, [dnl
- _LT_TRY_DLOPEN_SELF(
- lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
- lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
- ])
-
- if test "x$lt_cv_dlopen_self" = xyes; then
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
- AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
- lt_cv_dlopen_self_static, [dnl
- _LT_TRY_DLOPEN_SELF(
- lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
- lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross)
- ])
- fi
-
- CPPFLAGS="$save_CPPFLAGS"
- LDFLAGS="$save_LDFLAGS"
- LIBS="$save_LIBS"
- ;;
- esac
-
- case $lt_cv_dlopen_self in
- yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
- *) enable_dlopen_self=unknown ;;
- esac
-
- case $lt_cv_dlopen_self_static in
- yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
- *) enable_dlopen_self_static=unknown ;;
- esac
-fi
-_LT_DECL([dlopen_support], [enable_dlopen], [0],
- [Whether dlopen is supported])
-_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
- [Whether dlopen of programs is supported])
-_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
- [Whether dlopen of statically linked programs is supported])
-])# LT_SYS_DLOPEN_SELF
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
-
-
-# _LT_COMPILER_C_O([TAGNAME])
-# ---------------------------
-# Check to see if options -c and -o are simultaneously supported by compiler.
-# This macro does not hard code the compiler like AC_PROG_CC_C_O.
-m4_defun([_LT_COMPILER_C_O],
-[m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
- [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
- [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
- cd conftest
- mkdir out
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- lt_compiler_flag="-o out/conftest2.$ac_objext"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$lt_compile" 2>out/conftest.err)
- ac_status=$?
- cat out/conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
- if (exit $ac_status) && test -s out/conftest2.$ac_objext
- then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
- $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
- if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
- _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
- fi
- fi
- chmod u+w . 2>&AS_MESSAGE_LOG_FD
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
- # template instantiation
- test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
- $RM out/* && rmdir out
- cd ..
- $RM -r conftest
- $RM conftest*
-])
-_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
- [Does compiler simultaneously support -c and -o options?])
-])# _LT_COMPILER_C_O
-
-
-# _LT_COMPILER_FILE_LOCKS([TAGNAME])
-# ----------------------------------
-# Check to see if we can do hard links to lock some files if needed
-m4_defun([_LT_COMPILER_FILE_LOCKS],
-[m4_require([_LT_ENABLE_LOCK])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_COMPILER_C_O([$1])
-
-hard_links="nottested"
-if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
- # do not overwrite the value of need_locks provided by the user
- AC_MSG_CHECKING([if we can lock with hard links])
- hard_links=yes
- $RM conftest*
- ln conftest.a conftest.b 2>/dev/null && hard_links=no
- touch conftest.a
- ln conftest.a conftest.b 2>&5 || hard_links=no
- ln conftest.a conftest.b 2>/dev/null && hard_links=no
- AC_MSG_RESULT([$hard_links])
- if test "$hard_links" = no; then
- AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
- need_locks=warn
- fi
-else
- need_locks=no
-fi
-_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
-])# _LT_COMPILER_FILE_LOCKS
-
-
-# _LT_CHECK_OBJDIR
-# ----------------
-m4_defun([_LT_CHECK_OBJDIR],
-[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
-[rm -f .libs 2>/dev/null
-mkdir .libs 2>/dev/null
-if test -d .libs; then
- lt_cv_objdir=.libs
-else
- # MS-DOS does not allow filenames that begin with a dot.
- lt_cv_objdir=_libs
-fi
-rmdir .libs 2>/dev/null])
-objdir=$lt_cv_objdir
-_LT_DECL([], [objdir], [0],
- [The name of the directory that contains temporary libtool files])dnl
-m4_pattern_allow([LT_OBJDIR])dnl
-AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/",
- [Define to the sub-directory in which libtool stores uninstalled libraries.])
-])# _LT_CHECK_OBJDIR
-
-
-# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
-# --------------------------------------
-# Check hardcoding attributes.
-m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
-[AC_MSG_CHECKING([how to hardcode library paths into programs])
-_LT_TAGVAR(hardcode_action, $1)=
-if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
- test -n "$_LT_TAGVAR(runpath_var, $1)" ||
- test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then
-
- # We can hardcode non-existent directories.
- if test "$_LT_TAGVAR(hardcode_direct, $1)" != no &&
- # If the only mechanism to avoid hardcoding is shlibpath_var, we
- # have to relink, otherwise we might link with an installed library
- # when we should be linking with a yet-to-be-installed one
- ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
- test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then
- # Linking always hardcodes the temporary library directory.
- _LT_TAGVAR(hardcode_action, $1)=relink
- else
- # We can link without hardcoding, and we can hardcode nonexisting dirs.
- _LT_TAGVAR(hardcode_action, $1)=immediate
- fi
-else
- # We cannot hardcode anything, or else we can only hardcode existing
- # directories.
- _LT_TAGVAR(hardcode_action, $1)=unsupported
-fi
-AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
-
-if test "$_LT_TAGVAR(hardcode_action, $1)" = relink ||
- test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then
- # Fast installation is not supported
- enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
- test "$enable_shared" = no; then
- # Fast installation is not necessary
- enable_fast_install=needless
-fi
-_LT_TAGDECL([], [hardcode_action], [0],
- [How to hardcode a shared library path into an executable])
-])# _LT_LINKER_HARDCODE_LIBPATH
-
-
-# _LT_CMD_STRIPLIB
-# ----------------
-m4_defun([_LT_CMD_STRIPLIB],
-[m4_require([_LT_DECL_EGREP])
-striplib=
-old_striplib=
-AC_MSG_CHECKING([whether stripping libraries is possible])
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
- test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
- test -z "$striplib" && striplib="$STRIP --strip-unneeded"
- AC_MSG_RESULT([yes])
-else
-# FIXME - insert some real tests, host_os isn't really good enough
- case $host_os in
- darwin*)
- if test -n "$STRIP" ; then
- striplib="$STRIP -x"
- old_striplib="$STRIP -S"
- AC_MSG_RESULT([yes])
- else
- AC_MSG_RESULT([no])
- fi
- ;;
- *)
- AC_MSG_RESULT([no])
- ;;
- esac
-fi
-_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
-_LT_DECL([], [striplib], [1])
-])# _LT_CMD_STRIPLIB
-
-
-# _LT_SYS_DYNAMIC_LINKER([TAG])
-# -----------------------------
-# PORTME Fill in your ld.so characteristics
-m4_defun([_LT_SYS_DYNAMIC_LINKER],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_OBJDUMP])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_MSG_CHECKING([dynamic linker characteristics])
-m4_if([$1],
- [], [
-if test "$GCC" = yes; then
- case $host_os in
- darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
- *) lt_awk_arg="/^libraries:/" ;;
- esac
- lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e "s,=/,/,g"`
- if $ECHO "$lt_search_path_spec" | $GREP ';' >/dev/null ; then
- # if the path contains ";" then we assume it to be the separator
- # otherwise default to the standard path separator (i.e. ":") - it is
- # assumed that no part of a normal pathname contains ";" but that should
- # okay in the real world where ";" in dirpaths is itself problematic.
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e 's/;/ /g'`
- else
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- # Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary.
- lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
- for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path/$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
- else
- test -d "$lt_sys_path" && \
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
- fi
- done
- lt_search_path_spec=`$ECHO $lt_tmp_lt_search_path_spec | awk '
-BEGIN {RS=" "; FS="/|\n";} {
- lt_foo="";
- lt_count=0;
- for (lt_i = NF; lt_i > 0; lt_i--) {
- if ($lt_i != "" && $lt_i != ".") {
- if ($lt_i == "..") {
- lt_count++;
- } else {
- if (lt_count == 0) {
- lt_foo="/" $lt_i lt_foo;
- } else {
- lt_count--;
- }
- }
- }
- }
- if (lt_foo != "") { lt_freq[[lt_foo]]++; }
- if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
-}'`
- sys_lib_search_path_spec=`$ECHO $lt_search_path_spec`
-else
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi])
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=".so"
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-case $host_os in
-aix3*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
- shlibpath_var=LIBPATH
-
- # AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='${libname}${release}${shared_ext}$major'
- ;;
-
-aix[[4-9]]*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- hardcode_into_libs=yes
- if test "$host_cpu" = ia64; then
- # AIX 5 supports IA64
- library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- else
- # With GCC up to 2.95.x, collect2 would create an import file
- # for dependence libraries. The import file would start with
- # the line `#! .'. This would cause the generated library to
- # depend on `.', always an invalid library. This was fixed in
- # development snapshots of GCC prior to 3.0.
- case $host_os in
- aix4 | aix4.[[01]] | aix4.[[01]].*)
- if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
- echo ' yes '
- echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
- :
- else
- can_build_shared=no
- fi
- ;;
- esac
- # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
- # soname into executable. Probably we can add versioning support to
- # collect2, so additional links can be useful in future.
- if test "$aix_use_runtimelinking" = yes; then
- # If using run time linking (on AIX 4.2 or later) use lib<name>.so
- # instead of lib<name>.a to let people know that these are not
- # typical AIX shared libraries.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- else
- # We preserve .a as extension for shared libraries through AIX4.2
- # and later when we are not doing run time linking.
- library_names_spec='${libname}${release}.a $libname.a'
- soname_spec='${libname}${release}${shared_ext}$major'
- fi
- shlibpath_var=LIBPATH
- fi
- ;;
-
-amigaos*)
- case $host_cpu in
- powerpc)
- # Since July 2007 AmigaOS4 officially supports .so libraries.
- # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- ;;
- m68k)
- library_names_spec='$libname.ixlibrary $libname.a'
- # Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$ECHO "X$lib" | $Xsed -e '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
- ;;
- esac
- ;;
-
-beos*)
- library_names_spec='${libname}${shared_ext}'
- dynamic_linker="$host_os ld.so"
- shlibpath_var=LIBRARY_PATH
- ;;
-
-bsdi[[45]]*)
- version_type=linux
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
- sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
- # the default ld.so.conf also contains /usr/contrib/lib and
- # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
- # libtool to hard-code these into programs
- ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
- version_type=windows
- shrext_cmds=".dll"
- need_version=no
- need_lib_prefix=no
-
- case $GCC,$host_os in
- yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
- library_names_spec='$libname.dll.a'
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
-
- case $host_os in
- cygwin*)
- # Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- sys_lib_search_path_spec="/usr/lib /lib/w32api /lib /usr/local/lib"
- ;;
- mingw* | cegcc*)
- # MinGW DLLs use traditional 'lib' prefix
- soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- sys_lib_search_path_spec=`$CC -print-search-dirs | $GREP "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
- if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
- # It is most probably a Windows format PATH printed by
- # mingw gcc, but we are running on Cygwin. Gcc prints its search
- # path with ; separators, and with drive letters. We can handle the
- # drive letters (cygwin fileutils understands them), so leave them,
- # especially as we might pass files found there to a mingw objdump,
- # which wouldn't understand a cygwinified path. Ahh.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
- else
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- ;;
- pw32*)
- # pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- ;;
- esac
- ;;
-
- *)
- library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
- ;;
- esac
- dynamic_linker='Win32 ld.exe'
- # FIXME: first we should search . and the directory the executable is in
- shlibpath_var=PATH
- ;;
-
-darwin* | rhapsody*)
- dynamic_linker="$host_os dyld"
- version_type=darwin
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
- soname_spec='${libname}${release}${major}$shared_ext'
- shlibpath_overrides_runpath=yes
- shlibpath_var=DYLD_LIBRARY_PATH
- shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-m4_if([$1], [],[
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
- sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
- ;;
-
-dgux*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-freebsd1*)
- dynamic_linker=no
- ;;
-
-freebsd* | dragonfly*)
- # DragonFly does not have aout. When/if they implement a new
- # versioning mechanism, adjust this.
- if test -x /usr/bin/objformat; then
- objformat=`/usr/bin/objformat`
- else
- case $host_os in
- freebsd[[123]]*) objformat=aout ;;
- *) objformat=elf ;;
- esac
- fi
- version_type=freebsd-$objformat
- case $version_type in
- freebsd-elf*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- need_version=no
- need_lib_prefix=no
- ;;
- freebsd-*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
- need_version=yes
- ;;
- esac
- shlibpath_var=LD_LIBRARY_PATH
- case $host_os in
- freebsd2*)
- shlibpath_overrides_runpath=yes
- ;;
- freebsd3.[[01]]* | freebsdelf3.[[01]]*)
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
- freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
- *) # from 4.6 on, and DragonFly
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- esac
- ;;
-
-gnu*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- hardcode_into_libs=yes
- ;;
-
-hpux9* | hpux10* | hpux11*)
- # Give a soname corresponding to the major version so that dld.sl refuses to
- # link against other versions.
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- case $host_cpu in
- ia64*)
- shrext_cmds='.so'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.so"
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- if test "X$HPUX_IA64_MODE" = X32; then
- sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
- else
- sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
- fi
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- hppa*64*)
- shrext_cmds='.sl'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- *)
- shrext_cmds='.sl'
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=SHLIB_PATH
- shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- ;;
- esac
- # HP-UX runs *really* slowly unless shared libraries are mode 555.
- postinstall_cmds='chmod 555 $lib'
- ;;
-
-interix[[3-9]]*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $host_os in
- nonstopux*) version_type=nonstopux ;;
- *)
- if test "$lt_cv_prog_gnu_ld" = yes; then
- version_type=linux
- else
- version_type=irix
- fi ;;
- esac
- need_lib_prefix=no
- need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
- case $host_os in
- irix5* | nonstopux*)
- libsuff= shlibsuff=
- ;;
- *)
- case $LD in # libtool.m4 will add one of these switches to LD
- *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
- libsuff= shlibsuff= libmagic=32-bit;;
- *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
- libsuff=32 shlibsuff=N32 libmagic=N32;;
- *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
- libsuff=64 shlibsuff=64 libmagic=64-bit;;
- *) libsuff= shlibsuff= libmagic=never-match;;
- esac
- ;;
- esac
- shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
- sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
- hardcode_into_libs=yes
- ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
- dynamic_linker=no
- ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- # Some binutils ld are patched to set DT_RUNPATH
- save_LDFLAGS=$LDFLAGS
- save_libdir=$libdir
- eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
- LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
- [shlibpath_overrides_runpath=yes])])
- LDFLAGS=$save_LDFLAGS
- libdir=$save_libdir
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- # Append ld.so.conf contents to the search path
- if test -f /etc/ld.so.conf; then
- lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;/^$/d' | tr '\n' ' '`
- sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
- fi
-
- # We used to test for /lib/ld.so.1 and disable shared libraries on
- # powerpc, because MkLinux only supported shared libraries with the
- # GNU dynamic linker. Since this was broken with cross compilers,
- # most powerpc-linux boxes support dynamic linking these days and
- # people can always --disable-shared, the test was removed, and we
- # assume the GNU/Linux dynamic linker is in use.
- dynamic_linker='GNU/Linux ld.so'
- ;;
-
-netbsdelf*-gnu)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='NetBSD ld.elf_so'
- ;;
-
-netbsd*)
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- dynamic_linker='NetBSD (a.out) ld.so'
- else
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- dynamic_linker='NetBSD ld.elf_so'
- fi
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
-
-newsos6)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-*nto* | *qnx*)
- version_type=qnx
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='ldqnx.so'
- ;;
-
-openbsd*)
- version_type=sunos
- sys_lib_dlsearch_path_spec="/usr/lib"
- need_lib_prefix=no
- # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
- case $host_os in
- openbsd3.3 | openbsd3.3.*) need_version=yes ;;
- *) need_version=no ;;
- esac
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- case $host_os in
- openbsd2.[[89]] | openbsd2.[[89]].*)
- shlibpath_overrides_runpath=no
- ;;
- *)
- shlibpath_overrides_runpath=yes
- ;;
- esac
- else
- shlibpath_overrides_runpath=yes
- fi
- ;;
-
-os2*)
- libname_spec='$name'
- shrext_cmds=".dll"
- need_lib_prefix=no
- library_names_spec='$libname${shared_ext} $libname.a'
- dynamic_linker='OS/2 ld.exe'
- shlibpath_var=LIBPATH
- ;;
-
-osf3* | osf4* | osf5*)
- version_type=osf
- need_lib_prefix=no
- need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
- ;;
-
-rdos*)
- dynamic_linker=no
- ;;
-
-solaris*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- # ldd complains unless libraries are executable
- postinstall_cmds='chmod +x $lib'
- ;;
-
-sunos4*)
- version_type=sunos
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- if test "$with_gnu_ld" = yes; then
- need_lib_prefix=no
- fi
- need_version=yes
- ;;
-
-sysv4 | sysv4.3*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- case $host_vendor in
- sni)
- shlibpath_overrides_runpath=no
- need_lib_prefix=no
- runpath_var=LD_RUN_PATH
- ;;
- siemens)
- need_lib_prefix=no
- ;;
- motorola)
- need_lib_prefix=no
- need_version=no
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
- ;;
- esac
- ;;
-
-sysv4*MP*)
- if test -d /usr/nec ;then
- version_type=linux
- library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
- soname_spec='$libname${shared_ext}.$major'
- shlibpath_var=LD_LIBRARY_PATH
- fi
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=freebsd-elf
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- if test "$with_gnu_ld" = yes; then
- sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
- else
- sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
- case $host_os in
- sco3.2v5*)
- sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
- ;;
- esac
- fi
- sys_lib_dlsearch_path_spec='/usr/lib'
- ;;
-
-tpf*)
- # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-uts4*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-*)
- dynamic_linker=no
- ;;
-esac
-AC_MSG_RESULT([$dynamic_linker])
-test "$dynamic_linker" = no && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
- variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
- sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
-fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
- sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
-fi
-
-_LT_DECL([], [variables_saved_for_relink], [1],
- [Variables whose values should be saved in libtool wrapper scripts and
- restored at link time])
-_LT_DECL([], [need_lib_prefix], [0],
- [Do we need the "lib" prefix for modules?])
-_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
-_LT_DECL([], [version_type], [0], [Library versioning type])
-_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable])
-_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
-_LT_DECL([], [shlibpath_overrides_runpath], [0],
- [Is shlibpath searched before the hard-coded library search path?])
-_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
-_LT_DECL([], [library_names_spec], [1],
- [[List of archive names. First name is the real one, the rest are links.
- The last name is the one that the linker finds with -lNAME]])
-_LT_DECL([], [soname_spec], [1],
- [[The coded name of the library, if different from the real name]])
-_LT_DECL([], [postinstall_cmds], [2],
- [Command to use after installation of a shared archive])
-_LT_DECL([], [postuninstall_cmds], [2],
- [Command to use after uninstallation of a shared archive])
-_LT_DECL([], [finish_cmds], [2],
- [Commands used to finish a libtool library installation in a directory])
-_LT_DECL([], [finish_eval], [1],
- [[As "finish_cmds", except a single script fragment to be evaled but
- not shown]])
-_LT_DECL([], [hardcode_into_libs], [0],
- [Whether we should hardcode library paths into libraries])
-_LT_DECL([], [sys_lib_search_path_spec], [2],
- [Compile-time system search path for libraries])
-_LT_DECL([], [sys_lib_dlsearch_path_spec], [2],
- [Run-time system search path for libraries])
-])# _LT_SYS_DYNAMIC_LINKER
-
-
-# _LT_PATH_TOOL_PREFIX(TOOL)
-# --------------------------
-# find a file program which can recognize shared library
-AC_DEFUN([_LT_PATH_TOOL_PREFIX],
-[m4_require([_LT_DECL_EGREP])dnl
-AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
-[case $MAGIC_CMD in
-[[\\/*] | ?:[\\/]*])
- lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
- ;;
-*)
- lt_save_MAGIC_CMD="$MAGIC_CMD"
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-dnl $ac_dummy forces splitting on constant user-supplied paths.
-dnl POSIX.2 word splitting is done only on the output of word expansions,
-dnl not every word. This closes a longstanding sh security hole.
- ac_dummy="m4_if([$2], , $PATH, [$2])"
- for ac_dir in $ac_dummy; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$1; then
- lt_cv_path_MAGIC_CMD="$ac_dir/$1"
- if test -n "$file_magic_test_file"; then
- case $deplibs_check_method in
- "file_magic "*)
- file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
- if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
- $EGREP "$file_magic_regex" > /dev/null; then
- :
- else
- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such. This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem. Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
- fi ;;
- esac
- fi
- break
- fi
- done
- IFS="$lt_save_ifs"
- MAGIC_CMD="$lt_save_MAGIC_CMD"
- ;;
-esac])
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
- AC_MSG_RESULT($MAGIC_CMD)
-else
- AC_MSG_RESULT(no)
-fi
-_LT_DECL([], [MAGIC_CMD], [0],
- [Used to examine libraries when file_magic_cmd begins with "file"])dnl
-])# _LT_PATH_TOOL_PREFIX
-
-# Old name:
-AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
-
-
-# _LT_PATH_MAGIC
-# --------------
-# find a file program which can recognize a shared library
-m4_defun([_LT_PATH_MAGIC],
-[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
-if test -z "$lt_cv_path_MAGIC_CMD"; then
- if test -n "$ac_tool_prefix"; then
- _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
- else
- MAGIC_CMD=:
- fi
-fi
-])# _LT_PATH_MAGIC
-
-
-# LT_PATH_LD
-# ----------
-# find the pathname to the GNU or non-GNU linker
-AC_DEFUN([LT_PATH_LD],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-
-AC_ARG_WITH([gnu-ld],
- [AS_HELP_STRING([--with-gnu-ld],
- [assume the C compiler uses GNU ld @<:@default=no@:>@])],
- [test "$withval" = no || with_gnu_ld=yes],
- [with_gnu_ld=no])dnl
-
-ac_prog=ld
-if test "$GCC" = yes; then
- # Check if gcc -print-prog-name=ld gives a path.
- AC_MSG_CHECKING([for ld used by $CC])
- case $host in
- *-*-mingw*)
- # gcc leaves a trailing carriage return which upsets mingw
- ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
- *)
- ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
- esac
- case $ac_prog in
- # Accept absolute paths.
- [[\\/]]* | ?:[[\\/]]*)
- re_direlt='/[[^/]][[^/]]*/\.\./'
- # Canonicalize the pathname of ld
- ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
- while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
- ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
- done
- test -z "$LD" && LD="$ac_prog"
- ;;
- "")
- # If it fails, then pretend we aren't using GCC.
- ac_prog=ld
- ;;
- *)
- # If it is relative, then search for the first ld in PATH.
- with_gnu_ld=unknown
- ;;
- esac
-elif test "$with_gnu_ld" = yes; then
- AC_MSG_CHECKING([for GNU ld])
-else
- AC_MSG_CHECKING([for non-GNU ld])
-fi
-AC_CACHE_VAL(lt_cv_path_LD,
-[if test -z "$LD"; then
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
- lt_cv_path_LD="$ac_dir/$ac_prog"
- # Check to see if the program is GNU ld. I'd rather use --version,
- # but apparently some variants of GNU ld only accept -v.
- # Break only if it was the GNU/non-GNU ld that we prefer.
- case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
- *GNU* | *'with BFD'*)
- test "$with_gnu_ld" != no && break
- ;;
- *)
- test "$with_gnu_ld" != yes && break
- ;;
- esac
- fi
- done
- IFS="$lt_save_ifs"
-else
- lt_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$lt_cv_path_LD"
-if test -n "$LD"; then
- AC_MSG_RESULT($LD)
-else
- AC_MSG_RESULT(no)
-fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-_LT_PATH_LD_GNU
-AC_SUBST([LD])
-
-_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
-])# LT_PATH_LD
-
-# Old names:
-AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
-AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_LD], [])
-dnl AC_DEFUN([AC_PROG_LD], [])
-
-
-# _LT_PATH_LD_GNU
-#- --------------
-m4_defun([_LT_PATH_LD_GNU],
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU lds only accept -v.
-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
- lt_cv_prog_gnu_ld=yes
- ;;
-*)
- lt_cv_prog_gnu_ld=no
- ;;
-esac])
-with_gnu_ld=$lt_cv_prog_gnu_ld
-])# _LT_PATH_LD_GNU
-
-
-# _LT_CMD_RELOAD
-# --------------
-# find reload flag for linker
-# -- PORTME Some linkers may need a different reload flag.
-m4_defun([_LT_CMD_RELOAD],
-[AC_CACHE_CHECK([for $LD option to reload object files],
- lt_cv_ld_reload_flag,
- [lt_cv_ld_reload_flag='-r'])
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
- darwin*)
- if test "$GCC" = yes; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
- else
- reload_cmds='$LD$reload_flag -o $output$reload_objs'
- fi
- ;;
-esac
-_LT_DECL([], [reload_flag], [1], [How to create reloadable object files])dnl
-_LT_DECL([], [reload_cmds], [2])dnl
-])# _LT_CMD_RELOAD
-
-
-# _LT_CHECK_MAGIC_METHOD
-# ----------------------
-# how to check for library dependencies
-# -- PORTME fill in with the dynamic library characteristics
-m4_defun([_LT_CHECK_MAGIC_METHOD],
-[m4_require([_LT_DECL_EGREP])
-m4_require([_LT_DECL_OBJDUMP])
-AC_CACHE_CHECK([how to recognize dependent libraries],
-lt_cv_deplibs_check_method,
-[lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[[4-9]]*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-beos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-bsdi[[45]]*)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
- lt_cv_file_magic_cmd='/usr/bin/file -L'
- lt_cv_file_magic_test_file=/shlib/libc.so
- ;;
-
-cygwin*)
- # func_win32_libid is a shell function defined in ltmain.sh
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- ;;
-
-mingw* | pw32*)
- # Base MSYS/MinGW do not provide the 'file' command needed by
- # func_win32_libid shell function, so use a weaker test based on 'objdump',
- # unless we find 'file', for example because we are cross-compiling.
- if ( file / ) >/dev/null 2>&1; then
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- else
- lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- fi
- ;;
-
-cegcc)
- # use the weaker test based on 'objdump'. See mingw*.
- lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- ;;
-
-darwin* | rhapsody*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-freebsd* | dragonfly*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- case $host_cpu in
- i*86 )
- # Not sure whether the presence of OpenBSD here was a mistake.
- # Let's accept both of them until this is cleared up.
- lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
- ;;
- esac
- else
- lt_cv_deplibs_check_method=pass_all
- fi
- ;;
-
-gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-hpux10.20* | hpux11*)
- lt_cv_file_magic_cmd=/usr/bin/file
- case $host_cpu in
- ia64*)
- lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
- lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
- ;;
- hppa*64*)
- [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]']
- lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
- ;;
- *)
- lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]].[[0-9]]) shared library'
- lt_cv_file_magic_test_file=/usr/lib/libc.sl
- ;;
- esac
- ;;
-
-interix[[3-9]]*)
- # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $LD in
- *-32|*"-32 ") libmagic=32-bit;;
- *-n32|*"-n32 ") libmagic=N32;;
- *-64|*"-64 ") libmagic=64-bit;;
- *) libmagic=never-match;;
- esac
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
- fi
- ;;
-
-newos6*)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=/usr/lib/libnls.so
- ;;
-
-*nto* | *qnx*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-openbsd*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
- fi
- ;;
-
-osf3* | osf4* | osf5*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-rdos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-solaris*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv4 | sysv4.3*)
- case $host_vendor in
- motorola)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
- ;;
- ncr)
- lt_cv_deplibs_check_method=pass_all
- ;;
- sequent)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
- ;;
- sni)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
- lt_cv_file_magic_test_file=/lib/libc.so
- ;;
- siemens)
- lt_cv_deplibs_check_method=pass_all
- ;;
- pc)
- lt_cv_deplibs_check_method=pass_all
- ;;
- esac
- ;;
-
-tpf*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-esac
-])
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-_LT_DECL([], [deplibs_check_method], [1],
- [Method to check whether dependent libraries are shared objects])
-_LT_DECL([], [file_magic_cmd], [1],
- [Command to use when deplibs_check_method == "file_magic"])
-])# _LT_CHECK_MAGIC_METHOD
-
-
-# LT_PATH_NM
-# ----------
-# find the pathname to a BSD- or MS-compatible name lister
-AC_DEFUN([LT_PATH_NM],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
-[if test -n "$NM"; then
- # Let the user override the test.
- lt_cv_path_NM="$NM"
-else
- lt_nm_to_check="${ac_tool_prefix}nm"
- if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
- lt_nm_to_check="$lt_nm_to_check nm"
- fi
- for lt_tmp_nm in $lt_nm_to_check; do
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- tmp_nm="$ac_dir/$lt_tmp_nm"
- if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
- # Check to see if the nm accepts a BSD-compat flag.
- # Adding the `sed 1q' prevents false positives on HP-UX, which says:
- # nm: unknown option "B" ignored
- # Tru64's nm complains that /dev/null is an invalid object file
- case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
- */dev/null* | *'Invalid file or object type'*)
- lt_cv_path_NM="$tmp_nm -B"
- break
- ;;
- *)
- case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
- */dev/null*)
- lt_cv_path_NM="$tmp_nm -p"
- break
- ;;
- *)
- lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
- continue # so that we can try to find one that supports BSD flags
- ;;
- esac
- ;;
- esac
- fi
- done
- IFS="$lt_save_ifs"
- done
- : ${lt_cv_path_NM=no}
-fi])
-if test "$lt_cv_path_NM" != "no"; then
- NM="$lt_cv_path_NM"
-else
- # Didn't find any BSD compatible name lister, look for dumpbin.
- AC_CHECK_TOOLS(DUMPBIN, ["dumpbin -symbols" "link -dump -symbols"], :)
- AC_SUBST([DUMPBIN])
- if test "$DUMPBIN" != ":"; then
- NM="$DUMPBIN"
- fi
-fi
-test -z "$NM" && NM=nm
-AC_SUBST([NM])
-_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
-
-AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
- [lt_cv_nm_interface="BSD nm"
- echo "int some_variable = 0;" > conftest.$ac_ext
- (eval echo "\"\$as_me:__oline__: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$ac_compile" 2>conftest.err)
- cat conftest.err >&AS_MESSAGE_LOG_FD
- (eval echo "\"\$as_me:__oline__: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
- (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
- cat conftest.err >&AS_MESSAGE_LOG_FD
- (eval echo "\"\$as_me:__oline__: output\"" >&AS_MESSAGE_LOG_FD)
- cat conftest.out >&AS_MESSAGE_LOG_FD
- if $GREP 'External.*some_variable' conftest.out > /dev/null; then
- lt_cv_nm_interface="MS dumpbin"
- fi
- rm -f conftest*])
-])# LT_PATH_NM
-
-# Old names:
-AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
-AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_NM], [])
-dnl AC_DEFUN([AC_PROG_NM], [])
-
-
-# LT_LIB_M
-# --------
-# check for math library
-AC_DEFUN([LT_LIB_M],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-LIBM=
-case $host in
-*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
- # These system don't have libm, or don't need it
- ;;
-*-ncr-sysv4.3*)
- AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
- AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
- ;;
-*)
- AC_CHECK_LIB(m, cos, LIBM="-lm")
- ;;
-esac
-AC_SUBST([LIBM])
-])# LT_LIB_M
-
-# Old name:
-AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_CHECK_LIBM], [])
-
-
-# _LT_COMPILER_NO_RTTI([TAGNAME])
-# -------------------------------
-m4_defun([_LT_COMPILER_NO_RTTI],
-[m4_require([_LT_TAG_COMPILER])dnl
-
-_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
-
-if test "$GCC" = yes; then
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
-
- _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
- lt_cv_prog_compiler_rtti_exceptions,
- [-fno-rtti -fno-exceptions], [],
- [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
-fi
-_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
- [Compiler flag to turn off builtin functions])
-])# _LT_COMPILER_NO_RTTI
-
-
-# _LT_CMD_GLOBAL_SYMBOLS
-# ----------------------
-m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-AC_REQUIRE([LT_PATH_LD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-AC_MSG_CHECKING([command to parse $NM output from $compiler object])
-AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
-[
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix. What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[[BCDEGRST]]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
- symcode='[[BCDT]]'
- ;;
-cygwin* | mingw* | pw32* | cegcc*)
- symcode='[[ABCDGISTW]]'
- ;;
-hpux*)
- if test "$host_cpu" = ia64; then
- symcode='[[ABCDEGRST]]'
- fi
- ;;
-irix* | nonstopux*)
- symcode='[[BCDEGRST]]'
- ;;
-osf*)
- symcode='[[BCDEGQRST]]'
- ;;
-solaris*)
- symcode='[[BDRT]]'
- ;;
-sco3.2v5*)
- symcode='[[DT]]'
- ;;
-sysv4.2uw2*)
- symcode='[[DT]]'
- ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
- symcode='[[ABDT]]'
- ;;
-sysv4)
- symcode='[[DFNSTU]]'
- ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
- symcode='[[ABCDGIRSTW]]' ;;
-esac
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
- opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
- ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
- # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
- symxfrm="\\1 $ac_symprfx\\2 \\2"
-
- # Write the raw and C identifiers.
- if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function
- # and D for any global variable.
- # Also find C++ and __fastcall symbols from MSVC++,
- # which start with @ or ?.
- lt_cv_sys_global_symbol_pipe="$AWK ['"\
-" {last_section=section; section=\$ 3};"\
-" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-" \$ 0!~/External *\|/{next};"\
-" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-" {if(hide[section]) next};"\
-" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-" s[1]~/^[@?]/{print s[1], s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
-" ' prfx=^$ac_symprfx]"
- else
- lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
- fi
-
- # Check to see that the pipe works correctly.
- pipe_works=no
-
- rm -f conftest*
- cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
- if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- else
- rm -f "$nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
- if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<_LT_EOF > conftest.$ac_ext
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
- # Now generate the symbol file.
- eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
- cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols. */
-const struct {
- const char *name;
- void *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[[]] =
-{
- { "@PROGRAM@", (void *) 0 },
-_LT_EOF
- $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
- cat <<\_LT_EOF >> conftest.$ac_ext
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- lt_save_LIBS="$LIBS"
- lt_save_CFLAGS="$CFLAGS"
- LIBS="conftstm.$ac_objext"
- CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
- if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
- pipe_works=yes
- fi
- LIBS="$lt_save_LIBS"
- CFLAGS="$lt_save_CFLAGS"
- else
- echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
- cat conftest.$ac_ext >&5
- fi
- rm -rf conftest* conftst*
-
- # Do not use the global_symbol_pipe unless it works.
- if test "$pipe_works" = yes; then
- break
- else
- lt_cv_sys_global_symbol_pipe=
- fi
-done
-])
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
- lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
- AC_MSG_RESULT(failed)
-else
- AC_MSG_RESULT(ok)
-fi
-
-_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
- [Take the output of nm and produce a listing of raw symbols and C names])
-_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
- [Transform the output of nm in a proper C declaration])
-_LT_DECL([global_symbol_to_c_name_address],
- [lt_cv_sys_global_symbol_to_c_name_address], [1],
- [Transform the output of nm in a C name address pair])
-_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
- [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
- [Transform the output of nm in a C name address pair when lib prefix is needed])
-]) # _LT_CMD_GLOBAL_SYMBOLS
-
-
-# _LT_COMPILER_PIC([TAGNAME])
-# ---------------------------
-m4_defun([_LT_COMPILER_PIC],
-[m4_require([_LT_TAG_COMPILER])dnl
-_LT_TAGVAR(lt_prog_compiler_wl, $1)=
-_LT_TAGVAR(lt_prog_compiler_pic, $1)=
-_LT_TAGVAR(lt_prog_compiler_static, $1)=
-
-AC_MSG_CHECKING([for $compiler option to produce PIC])
-m4_if([$1], [CXX], [
- # C++ specific cases for pic, static, wl, etc.
- if test "$GXX" = yes; then
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
- mingw* | cygwin* | os2* | pw32* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- ;;
- *djgpp*)
- # DJGPP does not support shared libraries at all
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- ;;
- interix[[3-9]]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
- fi
- ;;
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- ;;
- *qnx* | *nto*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- else
- case $host_os in
- aix[[4-9]]*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- else
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
- chorus*)
- case $cc_basename in
- cxch68*)
- # Green Hills C++ Compiler
- # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
- ;;
- esac
- ;;
- dgux*)
- case $cc_basename in
- ec++*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- ;;
- ghcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- *)
- ;;
- esac
- ;;
- freebsd* | dragonfly*)
- # FreeBSD uses GNU C++
- ;;
- hpux9* | hpux10* | hpux11*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- if test "$host_cpu" != ia64; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- fi
- ;;
- aCC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- ;;
- esac
- ;;
- *)
- ;;
- esac
- ;;
- interix*)
- # This is c89, which is MS Visual C++ (no shared libs)
- # Anyone wants to do a port?
- ;;
- irix5* | irix6* | nonstopux*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- # CC pic flag -KPIC is the default.
- ;;
- *)
- ;;
- esac
- ;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- KCC*)
- # KAI C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- ecpc* )
- # old Intel C++ for x86_64 which still supported -KPIC.
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- icpc* )
- # Intel C++, used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- pgCC* | pgcpp*)
- # Portland Group C++ compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- cxx*)
- # Compaq C++
- # Make sure the PIC flag is empty. It appears that all Alpha
- # Linux and Compaq Tru64 Unix objects are PIC.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- xlc* | xlC*)
- # IBM XL 8.0 on PPC
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- esac
- ;;
- esac
- ;;
- lynxos*)
- ;;
- m88k*)
- ;;
- mvs*)
- case $cc_basename in
- cxx*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
- ;;
- *)
- ;;
- esac
- ;;
- netbsd* | netbsdelf*-gnu)
- ;;
- *qnx* | *nto*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
- osf3* | osf4* | osf5*)
- case $cc_basename in
- KCC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
- ;;
- RCC*)
- # Rational C++ 2.4.1
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- cxx*)
- # Digital/Compaq C++
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # Make sure the PIC flag is empty. It appears that all Alpha
- # Linux and Compaq Tru64 Unix objects are PIC.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- *)
- ;;
- esac
- ;;
- psos*)
- ;;
- solaris*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.2, 5.x and Centerline C++
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- gcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- ;;
- *)
- ;;
- esac
- ;;
- sunos4*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.x
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- lcc*)
- # Lucid
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- *)
- ;;
- esac
- ;;
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- esac
- ;;
- tandem*)
- case $cc_basename in
- NCC*)
- # NonStop-UX NCC 3.20
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- ;;
- *)
- ;;
- esac
- ;;
- vxworks*)
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
- esac
- fi
-],
-[
- if test "$GCC" = yes; then
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- ;;
-
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- ;;
-
- interix[[3-9]]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
-
- msdosdjgpp*)
- # Just because we use GCC doesn't mean we suddenly get shared libraries
- # on systems that don't support them.
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- enable_shared=no
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
- fi
- ;;
-
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- else
- # PORTME Check for flag to pass linker flags through the system compiler.
- case $host_os in
- aix*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- else
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
-
- hpux9* | hpux10* | hpux11*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
- # not for PA HP-UX.
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- ;;
- esac
- # Is there a better lt_prog_compiler_static that works with the bundled CC?
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- ;;
-
- irix5* | irix6* | nonstopux*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # PIC (with -KPIC) is the default.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- # old Intel for x86_64 which still supported -KPIC.
- ecc*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- # icc used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- icc* | ifort*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- # Lahey Fortran 8.1.
- lf95*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
- ;;
- pgcc* | pgf77* | pgf90* | pgf95*)
- # Portland Group compilers (*not* the Pentium gcc compiler,
- # which looks to be a dead project)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- ccc*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # All Alpha code is PIC.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- xl*)
- # IBM XL C 8.0/Fortran 10.1 on PPC
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C 5.9
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- ;;
- *Sun\ F*)
- # Sun Fortran 8.3 passes all unrecognized flags to the linker
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
- ;;
- esac
- ;;
- esac
- ;;
-
- newsos6)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
-
- osf3* | osf4* | osf5*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # All OSF/1 code is PIC.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- rdos*)
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- solaris*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- case $cc_basename in
- f77* | f90* | f95*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
- *)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
- esac
- ;;
-
- sunos4*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- sysv4 | sysv4.2uw2* | sysv4.3*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec ;then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- unicos*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
-
- uts4*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- *)
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
- esac
- fi
-])
-case $host_os in
- # For platforms which do not support PIC, -DPIC is meaningless:
- *djgpp*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
- ;;
-esac
-AC_MSG_RESULT([$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
-_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
- [How to pass a linker flag through the compiler])
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
- _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
- [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
- [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
- [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
- "" | " "*) ;;
- *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
- esac],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
-fi
-_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
- [Additional compiler flags for building library objects])
-
-#
-# Check to make sure the static flag actually works.
-#
-wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
-_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
- _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
- $lt_tmp_static_flag,
- [],
- [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
-_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
- [Compiler flag to prevent dynamic linking])
-])# _LT_COMPILER_PIC
-
-
-# _LT_LINKER_SHLIBS([TAGNAME])
-# ----------------------------
-# See if the linker supports building shared libraries.
-m4_defun([_LT_LINKER_SHLIBS],
-[AC_REQUIRE([LT_PATH_LD])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
-m4_if([$1], [CXX], [
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- case $host_os in
- aix[[4-9]]*)
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- else
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- fi
- ;;
- pw32*)
- _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
- ;;
- cygwin* | mingw* | cegcc*)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;/^.*[[ ]]__nm__/s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
- ;;
- linux* | k*bsd*-gnu)
- _LT_TAGVAR(link_all_deplibs, $1)=no
- ;;
- *)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- ;;
- esac
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
-], [
- runpath_var=
- _LT_TAGVAR(allow_undefined_flag, $1)=
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(archive_cmds, $1)=
- _LT_TAGVAR(archive_expsym_cmds, $1)=
- _LT_TAGVAR(compiler_needs_object, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- _LT_TAGVAR(hardcode_automatic, $1)=no
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- _LT_TAGVAR(hardcode_minus_L, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- _LT_TAGVAR(inherit_rpath, $1)=no
- _LT_TAGVAR(link_all_deplibs, $1)=unknown
- _LT_TAGVAR(module_cmds, $1)=
- _LT_TAGVAR(module_expsym_cmds, $1)=
- _LT_TAGVAR(old_archive_from_new_cmds, $1)=
- _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
- _LT_TAGVAR(thread_safe_flag_spec, $1)=
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- # include_expsyms should be a list of space-separated symbols to be *always*
- # included in the symbol list
- _LT_TAGVAR(include_expsyms, $1)=
- # exclude_expsyms can be an extended regexp of symbols to exclude
- # it will be wrapped by ` (' and `)$', so one must not match beginning or
- # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
- # as well as any symbol that contains `d'.
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
- # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
- # platforms (ab)use it in PIC code, but their linkers get confused if
- # the symbol is explicitly referenced. Since portable code cannot
- # rely on this symbol name, it's probably fine to never include it in
- # preloaded symbol tables.
- # Exclude shared library initialization/finalization symbols.
-dnl Note also adjust exclude_expsyms for C++ above.
- extract_expsyms_cmds=
-
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- # FIXME: the MSVC++ port hasn't been tested in a loooong time
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- if test "$GCC" != yes; then
- with_gnu_ld=no
- fi
- ;;
- interix*)
- # we just hope/assume this is gcc and not c89 (= MSVC++)
- with_gnu_ld=yes
- ;;
- openbsd*)
- with_gnu_ld=no
- ;;
- linux* | k*bsd*-gnu)
- _LT_TAGVAR(link_all_deplibs, $1)=no
- ;;
- esac
-
- _LT_TAGVAR(ld_shlibs, $1)=yes
- if test "$with_gnu_ld" = yes; then
- # If archive_cmds runs LD, not CC, wlarc should be empty
- wlarc='${wl}'
-
- # Set some defaults for GNU ld with shared library support. These
- # are reset later if shared libraries are not supported. Putting them
- # here allows them to be overridden if necessary.
- runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- # ancient GNU ld didn't support --whole-archive et. al.
- if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- supports_anon_versioning=no
- case `$LD -v 2>&1` in
- *GNU\ gold*) supports_anon_versioning=yes ;;
- *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
- *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
- *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
- *\ 2.11.*) ;; # other 2.11 versions
- *) supports_anon_versioning=yes ;;
- esac
-
- # See if GNU ld supports shared libraries.
- case $host_os in
- aix[[3-9]]*)
- # On AIX/PPC, the GNU linker is very broken
- if test "$host_cpu" != ia64; then
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.9.1, is reported
-*** to be unable to reliably create shared libraries on AIX.
-*** Therefore, libtool is disabling shared libraries support. If you
-*** really care for shared libraries, you may want to modify your PATH
-*** so that a non-GNU linker is found, and then restart.
-
-_LT_EOF
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)=''
- ;;
- m68k)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
- # as there is no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- interix[[3-9]]*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
-
- gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
- tmp_diet=no
- if test "$host_os" = linux-dietlibc; then
- case $cc_basename in
- diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
- esac
- fi
- if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test "$tmp_diet" = no
- then
- tmp_addflag=
- tmp_sharedflag='-shared'
- case $cc_basename,$host_cpu in
- pgcc*) # Portland Group C compiler
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- tmp_addflag=' $pic_flag'
- ;;
- pgf77* | pgf90* | pgf95*) # Portland Group f77 and f90 compilers
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- tmp_addflag=' $pic_flag -Mnomain' ;;
- ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
- tmp_addflag=' -i_dynamic' ;;
- efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
- tmp_addflag=' -i_dynamic -nofor_main' ;;
- ifc* | ifort*) # Intel Fortran compiler
- tmp_addflag=' -nofor_main' ;;
- lf95*) # Lahey Fortran 8.1
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- tmp_sharedflag='--shared' ;;
- xl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
- tmp_sharedflag='-qmkshrobj'
- tmp_addflag= ;;
- esac
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C 5.9
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
- tmp_sharedflag='-G' ;;
- *Sun\ F*) # Sun Fortran 8.3
- tmp_sharedflag='-G' ;;
- esac
- _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-
- if test "x$supports_anon_versioning" = xyes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
- fi
-
- case $cc_basename in
- xlf*)
- # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
- _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
- _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
- fi
- ;;
- esac
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
- wlarc=
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- fi
- ;;
-
- solaris*)
- if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
- case `$LD -v 2>&1` in
- *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
-*** reliably create shared libraries on SCO systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- ;;
- *)
- # For security reasons, it is highly recommended that you always
- # use absolute paths for naming shared libraries, and exclude the
- # DT_RUNPATH tag from executables and libraries. But doing so
- # requires that you compile everything twice, which is a pain.
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- sunos4*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- wlarc=
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
-
- if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then
- runpath_var=
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- else
- # PORTME fill in a description of your system's linker (not GNU ld)
- case $host_os in
- aix3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=yes
- _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
- # Note: this linker hardcodes the directories in LIBPATH if there
- # are no directories specified by -L.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
- # Neither direct hardcoding nor static linking is supported with a
- # broken collect2.
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- fi
- ;;
-
- aix[[4-9]]*)
- if test "$host_cpu" = ia64; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=""
- else
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- else
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- fi
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
- case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
- for ld_flag in $LDFLAGS; do
- if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
- aix_use_runtimelinking=yes
- break
- fi
- done
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- _LT_TAGVAR(archive_cmds, $1)=''
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
-
- if test "$GCC" = yes; then
- case $host_os in aix4.[[012]]|aix4.[[012]].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- fi
- ;;
- esac
- shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
- fi
- _LT_TAGVAR(link_all_deplibs, $1)=no
- else
- # not using gcc
- if test "$host_cpu" = ia64; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
- else
- shared_flag='${wl}-bM:SRE'
- fi
- fi
- fi
-
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to export.
- _LT_TAGVAR(always_export_symbols, $1)=yes
- if test "$aix_use_runtimelinking" = yes; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
- else
- if test "$host_cpu" = ia64; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
- _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
- # Exported symbols can be pulled into shared objects from archives
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- # This is similar to how AIX traditionally builds its shared libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
- fi
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)=''
- ;;
- m68k)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- ;;
-
- bsdi[[45]]*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- # hardcode_libdir_flag_spec is actually meaningless, as there is
- # no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
- # FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `$ECHO "X$deplibs" | $Xsed -e '\''s/ -lc$//'\''` -link -dll~linknames='
- # The linker will automatically build a .lib file if we build a DLL.
- _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
- # FIXME: Should let the user specify the lib program.
- _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
- _LT_TAGVAR(fix_srcfile_path, $1)='`cygpath -w "$srcfile"`'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- ;;
-
- darwin* | rhapsody*)
- _LT_DARWIN_LINKER_FEATURES($1)
- ;;
-
- dgux*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- freebsd1*)
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
- # support. Future versions do this automatically, but an explicit c++rt0.o
- # does not break anything, and helps significantly (at the cost of a little
- # extra space).
- freebsd2.2*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # Unfortunately, older versions of FreeBSD 2 do not have this feature.
- freebsd2*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
- freebsd* | dragonfly*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- hpux9*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- else
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_direct, $1)=yes
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- ;;
-
- hpux10*)
- if test "$GCC" = yes -a "$with_gnu_ld" = no; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
- fi
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- fi
- ;;
-
- hpux11*)
- if test "$GCC" = yes -a "$with_gnu_ld" = no; then
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- else
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- fi
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
- *)
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- fi
- ;;
-
- irix5* | irix6* | nonstopux*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- # Try to use the -exported_symbol ld option, if it does not
- # work, assume that -exports_file does not work either and
- # implicitly export all symbols.
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
- AC_LINK_IFELSE(int foo(void) {},
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
- )
- LDFLAGS="$save_LDFLAGS"
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(inherit_rpath, $1)=yes
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- newsos6)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *nto* | *qnx*)
- ;;
-
- openbsd*)
- if test -f /usr/libexec/ld.so; then
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- else
- case $host_os in
- openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- ;;
- esac
- fi
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- os2*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$ECHO DATA >> $output_objdir/$libname.def~$ECHO " SINGLE NONSHARED" >> $output_objdir/$libname.def~$ECHO EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
- _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
- ;;
-
- osf3*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- else
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- ;;
-
- osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test "$GCC" = yes; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- else
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
-
- # Both c and cxx compiler support -rpath directly
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- ;;
-
- solaris*)
- _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
- if test "$GCC" = yes; then
- wlarc='${wl}'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- else
- case `$CC -V 2>&1` in
- *"Compilers 5.0"*)
- wlarc=''
- _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
- ;;
- *)
- wlarc='${wl}'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- ;;
- esac
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'. GCC discards it without `$wl',
- # but is careful enough not to reorder.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- if test "$GCC" = yes; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
- fi
- ;;
- esac
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- sunos4*)
- if test "x$host_vendor" = xsequent; then
- # Use $CC to link under sequent, because it throws in some extra .o
- # files that make .init and .fini sections work.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- sysv4)
- case $host_vendor in
- sni)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
- ;;
- siemens)
- ## LD is ld it makes a PLAMLIB
- ## CC just makes a GrossModule.
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
- _LT_TAGVAR(hardcode_direct, $1)=no
- ;;
- motorola)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
- ;;
- esac
- runpath_var='LD_RUN_PATH'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- sysv4.3*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var=LD_RUN_PATH
- hardcode_runpath_var=yes
- _LT_TAGVAR(ld_shlibs, $1)=yes
- fi
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var='LD_RUN_PATH'
-
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
- runpath_var='LD_RUN_PATH'
-
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- uts4*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *)
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
-
- if test x$host_vendor = xsni; then
- case $host in
- sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym'
- ;;
- esac
- fi
- fi
-])
-AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
-test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
-
-_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
-
-_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
-_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
-_LT_DECL([], [extract_expsyms_cmds], [2],
- [The commands to extract the exported symbol list from a shared archive])
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
-x|xyes)
- # Assume -lc should be added
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-
- if test "$enable_shared" = yes && test "$GCC" = yes; then
- case $_LT_TAGVAR(archive_cmds, $1) in
- *'~'*)
- # FIXME: we may have to deal with multi-command sequences.
- ;;
- '$CC '*)
- # Test whether the compiler implicitly links with -lc since on some
- # systems, -lgcc has to come before -lc. If gcc already passes -lc
- # to ld, don't add -lc before -lgcc.
- AC_MSG_CHECKING([whether -lc should be explicitly linked in])
- $RM conftest*
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
- soname=conftest
- lib=conftest
- libobjs=conftest.$ac_objext
- deplibs=
- wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
- pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
- compiler_flags=-v
- linker_flags=-v
- verstring=
- output_objdir=.
- libname=conftest
- lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
- _LT_TAGVAR(allow_undefined_flag, $1)=
- if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
- then
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- else
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- fi
- _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
- else
- cat conftest.err 1>&5
- fi
- $RM conftest*
- AC_MSG_RESULT([$_LT_TAGVAR(archive_cmds_need_lc, $1)])
- ;;
- esac
- fi
- ;;
-esac
-
-_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
- [Whether or not to add -lc for building shared libraries])
-_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
- [enable_shared_with_static_runtimes], [0],
- [Whether or not to disallow shared libs when runtime libs are static])
-_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
- [Compiler flag to allow reflexive dlopens])
-_LT_TAGDECL([], [whole_archive_flag_spec], [1],
- [Compiler flag to generate shared objects directly from archives])
-_LT_TAGDECL([], [compiler_needs_object], [1],
- [Whether the compiler copes with passing no objects directly])
-_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
- [Create an old-style archive from a shared archive])
-_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
- [Create a temporary old-style archive to link instead of a shared archive])
-_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
-_LT_TAGDECL([], [archive_expsym_cmds], [2])
-_LT_TAGDECL([], [module_cmds], [2],
- [Commands used to build a loadable module if different from building
- a shared archive.])
-_LT_TAGDECL([], [module_expsym_cmds], [2])
-_LT_TAGDECL([], [with_gnu_ld], [1],
- [Whether we are building with GNU ld or not])
-_LT_TAGDECL([], [allow_undefined_flag], [1],
- [Flag that allows shared libraries with undefined symbols to be built])
-_LT_TAGDECL([], [no_undefined_flag], [1],
- [Flag that enforces no undefined symbols])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
- [Flag to hardcode $libdir into a binary during linking.
- This must work even if $libdir does not exist])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec_ld], [1],
- [[If ld is used when linking, flag to hardcode $libdir into a binary
- during linking. This must work even if $libdir does not exist]])
-_LT_TAGDECL([], [hardcode_libdir_separator], [1],
- [Whether we need a single "-rpath" flag with a separated argument])
-_LT_TAGDECL([], [hardcode_direct], [0],
- [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
- DIR into the resulting binary])
-_LT_TAGDECL([], [hardcode_direct_absolute], [0],
- [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
- DIR into the resulting binary and the resulting library dependency is
- "absolute", i.e impossible to change by setting ${shlibpath_var} if the
- library is relocated])
-_LT_TAGDECL([], [hardcode_minus_L], [0],
- [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
- into the resulting binary])
-_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
- [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
- into the resulting binary])
-_LT_TAGDECL([], [hardcode_automatic], [0],
- [Set to "yes" if building a shared library automatically hardcodes DIR
- into the library and all subsequent libraries and executables linked
- against it])
-_LT_TAGDECL([], [inherit_rpath], [0],
- [Set to yes if linker adds runtime paths of dependent libraries
- to runtime path list])
-_LT_TAGDECL([], [link_all_deplibs], [0],
- [Whether libtool must link a program against all its dependency libraries])
-_LT_TAGDECL([], [fix_srcfile_path], [1],
- [Fix the shell variable $srcfile for the compiler])
-_LT_TAGDECL([], [always_export_symbols], [0],
- [Set to "yes" if exported symbols are required])
-_LT_TAGDECL([], [export_symbols_cmds], [2],
- [The commands to list exported symbols])
-_LT_TAGDECL([], [exclude_expsyms], [1],
- [Symbols that should not be listed in the preloaded symbols])
-_LT_TAGDECL([], [include_expsyms], [1],
- [Symbols that must always be exported])
-_LT_TAGDECL([], [prelink_cmds], [2],
- [Commands necessary for linking programs (against libraries) with templates])
-_LT_TAGDECL([], [file_list_spec], [1],
- [Specify filename containing input files])
-dnl FIXME: Not yet implemented
-dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
-dnl [Compiler flag to generate thread safe objects])
-])# _LT_LINKER_SHLIBS
-
-
-# _LT_LANG_C_CONFIG([TAG])
-# ------------------------
-# Ensure that the configuration variables for a C compiler are suitably
-# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_C_CONFIG],
-[m4_require([_LT_DECL_EGREP])dnl
-lt_save_CC="$CC"
-AC_LANG_PUSH(C)
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-_LT_TAG_COMPILER
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
- LT_SYS_DLOPEN_SELF
- _LT_CMD_STRIPLIB
-
- # Report which library types will actually be built
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
-
- aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_CONFIG($1)
-fi
-AC_LANG_POP
-CC="$lt_save_CC"
-])# _LT_LANG_C_CONFIG
-
-
-# _LT_PROG_CXX
-# ------------
-# Since AC_PROG_CXX is broken, in that it returns g++ if there is no c++
-# compiler, we have our own version here.
-m4_defun([_LT_PROG_CXX],
-[
-pushdef([AC_MSG_ERROR], [_lt_caught_CXX_error=yes])
-AC_PROG_CXX
-if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
- ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
- (test "X$CXX" != "Xg++"))) ; then
- AC_PROG_CXXCPP
-else
- _lt_caught_CXX_error=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_CXX
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_CXX], [])
-
-
-# _LT_LANG_CXX_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a C++ compiler are suitably
-# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_CXX_CONFIG],
-[AC_REQUIRE([_LT_PROG_CXX])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-
-AC_LANG_PUSH(C++)
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(compiler_needs_object, $1)=no
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for C++ test sources.
-ac_ext=cpp
-
-# Object file extension for compiled C++ test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the CXX compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_caught_CXX_error" != yes; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="int some_variable = 0;"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC=$CC
- lt_save_LD=$LD
- lt_save_GCC=$GCC
- GCC=$GXX
- lt_save_with_gnu_ld=$with_gnu_ld
- lt_save_path_LD=$lt_cv_path_LD
- if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
- lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
- else
- $as_unset lt_cv_prog_gnu_ld
- fi
- if test -n "${lt_cv_path_LDCXX+set}"; then
- lt_cv_path_LD=$lt_cv_path_LDCXX
- else
- $as_unset lt_cv_path_LD
- fi
- test -z "${LDCXX+set}" || LD=$LDCXX
- CC=${CXX-"c++"}
- compiler=$CC
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
-
- if test -n "$compiler"; then
- # We don't want -fno-exception when compiling C++ code, so set the
- # no_builtin_flag separately
- if test "$GXX" = yes; then
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
- else
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
- fi
-
- if test "$GXX" = yes; then
- # Set up default GNU C++ configuration
-
- LT_PATH_LD
-
- # Check if GNU C++ uses GNU ld as the underlying linker, since the
- # archiving commands below assume that GNU ld is being used.
- if test "$with_gnu_ld" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-
- # If archive_cmds runs LD, not CC, wlarc should be empty
- # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
- # investigate it a little bit more. (MM)
- wlarc='${wl}'
-
- # ancient GNU ld didn't support --whole-archive et. al.
- if eval "`$CC -print-prog-name=ld` --help 2>&1" |
- $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- else
- with_gnu_ld=no
- wlarc=
-
- # A generic and very simple default shared library creation
- # command for GNU C++ for the case where it uses the native
- # linker, instead of GNU ld. If possible, this setting should
- # overridden to take advantage of the native linker features on
- # the platform it is being used on.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- fi
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-
- else
- GXX=no
- with_gnu_ld=no
- wlarc=
- fi
-
- # PORTME: fill in a description of your system's C++ link characteristics
- AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
- _LT_TAGVAR(ld_shlibs, $1)=yes
- case $host_os in
- aix3*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aix[[4-9]]*)
- if test "$host_cpu" = ia64; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=""
- else
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
- case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
- for ld_flag in $LDFLAGS; do
- case $ld_flag in
- *-brtl*)
- aix_use_runtimelinking=yes
- break
- ;;
- esac
- done
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- _LT_TAGVAR(archive_cmds, $1)=''
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
-
- if test "$GXX" = yes; then
- case $host_os in aix4.[[012]]|aix4.[[012]].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- fi
- esac
- shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
- fi
- else
- # not using gcc
- if test "$host_cpu" = ia64; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
- else
- shared_flag='${wl}-bM:SRE'
- fi
- fi
- fi
-
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to
- # export.
- _LT_TAGVAR(always_export_symbols, $1)=yes
- if test "$aix_use_runtimelinking" = yes; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
- # Determine the default libpath from the value encoded in an empty
- # executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
-
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
- else
- if test "$host_cpu" = ia64; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
- _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
- # Exported symbols can be pulled into shared objects from archives
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- # This is similar to how AIX traditionally builds its shared
- # libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
- fi
- fi
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- chorus*)
- case $cc_basename in
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
- # as there is no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- darwin* | rhapsody*)
- _LT_DARWIN_LINKER_FEATURES($1)
- ;;
-
- dgux*)
- case $cc_basename in
- ec++*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- ghcx*)
- # Green Hills C++ Compiler
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- freebsd[[12]]*)
- # C++ shared libraries reported to be fairly broken before
- # switch to ELF
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- freebsd-elf*)
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- ;;
-
- freebsd* | dragonfly*)
- # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
- # conventions
- _LT_TAGVAR(ld_shlibs, $1)=yes
- ;;
-
- gnu*)
- ;;
-
- hpux9*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
- # but as the default
- # location of the library.
-
- case $cc_basename in
- CC*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aCC*)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- *)
- if test "$GXX" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- hpux10*|hpux11*)
- if test $with_gnu_ld = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- ;;
- *)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- ;;
- esac
- fi
- case $host_cpu in
- hppa*64*|ia64*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
- *)
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
- # but as the default
- # location of the library.
- ;;
- esac
-
- case $cc_basename in
- CC*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aCC*)
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- esac
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- *)
- if test "$GXX" = yes; then
- if test $with_gnu_ld = no; then
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- esac
- fi
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- interix[[3-9]]*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
- irix5* | irix6*)
- case $cc_basename in
- CC*)
- # SGI C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-
- # Archives containing C++ object files must be created using
- # "CC -ar", where "CC" is the IRIX C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
- ;;
- *)
- if test "$GXX" = yes; then
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` -o $lib'
- fi
- fi
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
- esac
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(inherit_rpath, $1)=yes
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- KCC*)
- # Kuck and Associates, Inc. (KAI) C++ Compiler
-
- # KCC will only create a shared library if the output file
- # ends with ".so" (or ".sl" for HP-UX), so rename the library
- # to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-
- # Archives containing C++ object files must be created using
- # "CC -Bstatic", where "CC" is the KAI C++ compiler.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
- ;;
- icpc* | ecpc* )
- # Intel C++
- with_gnu_ld=yes
- # version 8.0 and above of icpc choke on multiply defined symbols
- # if we add $predep_objects and $postdep_objects, however 7.1 and
- # earlier do not add the objects themselves.
- case `$CC -V 2>&1` in
- *"Version 7."*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- *) # Version 8.0 or newer
- tmp_idyn=
- case $host_cpu in
- ia64*) tmp_idyn=' -i_dynamic';;
- esac
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- esac
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
- ;;
- pgCC* | pgcpp*)
- # Portland Group C++ compiler
- case `$CC -V` in
- *pgCC\ [[1-5]]* | *pgcpp\ [[1-5]]*)
- _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
- compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
- _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
- $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
- $RANLIB $oldlib'
- _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
- ;;
- *) # Version 6 will use weak symbols
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- ;;
- cxx*)
- # Compaq C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
-
- runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`$ECHO "X$templist" | $Xsed -e "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- xl*)
- # IBM XL 8.0 on PPC, with GNU ld
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
- fi
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
- _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
-
- # Not sure whether something based on
- # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
- # would be better.
- output_verbose_link_cmd='echo'
-
- # Archives containing C++ object files must be created using
- # "CC -xar", where "CC" is the Sun C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
- ;;
- esac
- ;;
- esac
- ;;
-
- lynxos*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- m88k*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- mvs*)
- case $cc_basename in
- cxx*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
- wlarc=
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- fi
- # Workaround some broken pre-1.5 toolchains
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
- ;;
-
- *nto* | *qnx*)
- _LT_TAGVAR(ld_shlibs, $1)=yes
- ;;
-
- openbsd2*)
- # C++ shared libraries are fairly broken
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- openbsd*)
- if test -f /usr/libexec/ld.so; then
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
- fi
- output_verbose_link_cmd=echo
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- osf3* | osf4* | osf5*)
- case $cc_basename in
- KCC*)
- # Kuck and Associates, Inc. (KAI) C++ Compiler
-
- # KCC will only create a shared library if the output file
- # ends with ".so" (or ".sl" for HP-UX), so rename the library
- # to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Archives containing C++ object files must be created using
- # the KAI C++ compiler.
- case $host in
- osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
- *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
- esac
- ;;
- RCC*)
- # Rational C++ 2.4.1
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- cxx*)
- case $host in
- osf3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && $ECHO "X${wl}-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- ;;
- *)
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
- echo "-hidden">> $lib.exp~
- $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~
- $RM $lib.exp'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`$ECHO "X$templist" | $Xsed -e "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- *)
- if test "$GXX" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- case $host in
- osf3*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- psos*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- sunos4*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.x
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- lcc*)
- # Lucid
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- solaris*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.2, 5.x and Centerline C++
- _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
- _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
- ;;
- esac
- _LT_TAGVAR(link_all_deplibs, $1)=yes
-
- output_verbose_link_cmd='echo'
-
- # Archives containing C++ object files must be created using
- # "CC -xar", where "CC" is the Sun C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
- ;;
- gcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
-
- # The C++ compiler must be used to create the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
- ;;
- *)
- # GNU C++ compiler with Solaris linker
- if test "$GXX" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
- if $CC --version | $GREP -v '^2\.7' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
- else
- # g++ 2.7 appears to require `-G' NOT `-shared' on this
- # platform.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
- fi
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
- ;;
- esac
- fi
- ;;
- esac
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var='LD_RUN_PATH'
-
- case $cc_basename in
- CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
- runpath_var='LD_RUN_PATH'
-
- case $cc_basename in
- CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- tandem*)
- case $cc_basename in
- NCC*)
- # NonStop-UX NCC 3.20
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- vxworks*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
-
- AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
- test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
-
- _LT_TAGVAR(GCC, $1)="$GXX"
- _LT_TAGVAR(LD, $1)="$LD"
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_SYS_HIDDEN_LIBDEPS($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- CC=$lt_save_CC
- LDCXX=$LD
- LD=$lt_save_LD
- GCC=$lt_save_GCC
- with_gnu_ld=$lt_save_with_gnu_ld
- lt_cv_path_LDCXX=$lt_cv_path_LD
- lt_cv_path_LD=$lt_save_path_LD
- lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
- lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
-fi # test "$_lt_caught_CXX_error" != yes
-
-AC_LANG_POP
-])# _LT_LANG_CXX_CONFIG
-
-
-# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
-# ---------------------------------
-# Figure out "hidden" library dependencies from verbose
-# compiler output when linking a shared library.
-# Parse the compiler output and extract the necessary
-# objects, libraries and library flags.
-m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-# Dependencies to place before and after the object being linked:
-_LT_TAGVAR(predep_objects, $1)=
-_LT_TAGVAR(postdep_objects, $1)=
-_LT_TAGVAR(predeps, $1)=
-_LT_TAGVAR(postdeps, $1)=
-_LT_TAGVAR(compiler_lib_search_path, $1)=
-
-dnl we can't use the lt_simple_compile_test_code here,
-dnl because it contains code intended for an executable,
-dnl not a library. It's possible we should let each
-dnl tag define a new lt_????_link_test_code variable,
-dnl but it's only used here...
-m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
-int a;
-void foo (void) { a = 0; }
-_LT_EOF
-], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
-class Foo
-{
-public:
- Foo (void) { a = 0; }
-private:
- int a;
-};
-_LT_EOF
-], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
- subroutine foo
- implicit none
- integer*4 a
- a=0
- return
- end
-_LT_EOF
-], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
- subroutine foo
- implicit none
- integer a
- a=0
- return
- end
-_LT_EOF
-], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
-public class foo {
- private int a;
- public void bar (void) {
- a = 0;
- }
-};
-_LT_EOF
-])
-dnl Parse the compiler output and extract the necessary
-dnl objects, libraries and library flags.
-if AC_TRY_EVAL(ac_compile); then
- # Parse the compiler output and extract the necessary
- # objects, libraries and library flags.
-
- # Sentinel used to keep track of whether or not we are before
- # the conftest object file.
- pre_test_object_deps_done=no
-
- for p in `eval "$output_verbose_link_cmd"`; do
- case $p in
-
- -L* | -R* | -l*)
- # Some compilers place space between "-{L,R}" and the path.
- # Remove the space.
- if test $p = "-L" ||
- test $p = "-R"; then
- prev=$p
- continue
- else
- prev=
- fi
-
- if test "$pre_test_object_deps_done" = no; then
- case $p in
- -L* | -R*)
- # Internal compiler library paths should come after those
- # provided the user. The postdeps already come after the
- # user supplied libs so there is no need to process them.
- if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
- _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
- else
- _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
- fi
- ;;
- # The "-l" case would never come before the object being
- # linked, so don't bother handling this case.
- esac
- else
- if test -z "$_LT_TAGVAR(postdeps, $1)"; then
- _LT_TAGVAR(postdeps, $1)="${prev}${p}"
- else
- _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}"
- fi
- fi
- ;;
-
- *.$objext)
- # This assumes that the test object file only shows up
- # once in the compiler output.
- if test "$p" = "conftest.$objext"; then
- pre_test_object_deps_done=yes
- continue
- fi
-
- if test "$pre_test_object_deps_done" = no; then
- if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
- _LT_TAGVAR(predep_objects, $1)="$p"
- else
- _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
- fi
- else
- if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
- _LT_TAGVAR(postdep_objects, $1)="$p"
- else
- _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
- fi
- fi
- ;;
-
- *) ;; # Ignore the rest.
-
- esac
- done
-
- # Clean up.
- rm -f a.out a.exe
-else
- echo "libtool.m4: error: problem compiling $1 test program"
-fi
-
-$RM -f confest.$objext
-
-# PORTME: override above test on systems where it is broken
-m4_if([$1], [CXX],
-[case $host_os in
-interix[[3-9]]*)
- # Interix 3.5 installs completely hosed .la files for C++, so rather than
- # hack all around it, let's just trust "g++" to DTRT.
- _LT_TAGVAR(predep_objects,$1)=
- _LT_TAGVAR(postdep_objects,$1)=
- _LT_TAGVAR(postdeps,$1)=
- ;;
-
-linux*)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
-
- # The more standards-conforming stlport4 library is
- # incompatible with the Cstd library. Avoid specifying
- # it if it's in CXXFLAGS. Ignore libCrun as
- # -library=stlport4 depends on it.
- case " $CXX $CXXFLAGS " in
- *" -library=stlport4 "*)
- solaris_use_stlport4=yes
- ;;
- esac
-
- if test "$solaris_use_stlport4" != yes; then
- _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-
-solaris*)
- case $cc_basename in
- CC*)
- # The more standards-conforming stlport4 library is
- # incompatible with the Cstd library. Avoid specifying
- # it if it's in CXXFLAGS. Ignore libCrun as
- # -library=stlport4 depends on it.
- case " $CXX $CXXFLAGS " in
- *" -library=stlport4 "*)
- solaris_use_stlport4=yes
- ;;
- esac
-
- # Adding this requires a known-good setup of shared libraries for
- # Sun compiler versions before 5.6, else PIC objects from an old
- # archive will be linked into the output, leading to subtle bugs.
- if test "$solaris_use_stlport4" != yes; then
- _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-esac
-])
-
-case " $_LT_TAGVAR(postdeps, $1) " in
-*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
-esac
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=
-if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
-fi
-_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
- [The directories searched by this compiler when creating a shared library])
-_LT_TAGDECL([], [predep_objects], [1],
- [Dependencies to place before and after the objects being linked to
- create a shared library])
-_LT_TAGDECL([], [postdep_objects], [1])
-_LT_TAGDECL([], [predeps], [1])
-_LT_TAGDECL([], [postdeps], [1])
-_LT_TAGDECL([], [compiler_lib_search_path], [1],
- [The library search path used internally by the compiler when linking
- a shared library])
-])# _LT_SYS_HIDDEN_LIBDEPS
-
-
-# _LT_PROG_F77
-# ------------
-# Since AC_PROG_F77 is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-m4_defun([_LT_PROG_F77],
-[
-pushdef([AC_MSG_ERROR], [_lt_disable_F77=yes])
-AC_PROG_F77
-if test -z "$F77" || test "X$F77" = "Xno"; then
- _lt_disable_F77=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_F77
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_F77], [])
-
-
-# _LT_LANG_F77_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a Fortran 77 compiler are
-# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_F77_CONFIG],
-[AC_REQUIRE([_LT_PROG_F77])dnl
-AC_LANG_PUSH(Fortran 77)
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for f77 test sources.
-ac_ext=f
-
-# Object file extension for compiled f77 test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the F77 compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_disable_F77" != yes; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="\
- subroutine t
- return
- end
-"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code="\
- program t
- end
-"
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC="$CC"
- lt_save_GCC=$GCC
- CC=${F77-"f77"}
- compiler=$CC
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
- GCC=$G77
- if test -n "$compiler"; then
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
- aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_TAGVAR(GCC, $1)="$G77"
- _LT_TAGVAR(LD, $1)="$LD"
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- GCC=$lt_save_GCC
- CC="$lt_save_CC"
-fi # test "$_lt_disable_F77" != yes
-
-AC_LANG_POP
-])# _LT_LANG_F77_CONFIG
-
-
-# _LT_PROG_FC
-# -----------
-# Since AC_PROG_FC is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-m4_defun([_LT_PROG_FC],
-[
-pushdef([AC_MSG_ERROR], [_lt_disable_FC=yes])
-AC_PROG_FC
-if test -z "$FC" || test "X$FC" = "Xno"; then
- _lt_disable_FC=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_FC
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_FC], [])
-
-
-# _LT_LANG_FC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for a Fortran compiler are
-# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_FC_CONFIG],
-[AC_REQUIRE([_LT_PROG_FC])dnl
-AC_LANG_PUSH(Fortran)
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for fc test sources.
-ac_ext=${ac_fc_srcext-f}
-
-# Object file extension for compiled fc test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the FC compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_disable_FC" != yes; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="\
- subroutine t
- return
- end
-"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code="\
- program t
- end
-"
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC="$CC"
- lt_save_GCC=$GCC
- CC=${FC-"f95"}
- compiler=$CC
- GCC=$ac_cv_fc_compiler_gnu
-
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
-
- if test -n "$compiler"; then
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
- aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu"
- _LT_TAGVAR(LD, $1)="$LD"
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_SYS_HIDDEN_LIBDEPS($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- GCC=$lt_save_GCC
- CC="$lt_save_CC"
-fi # test "$_lt_disable_FC" != yes
-
-AC_LANG_POP
-])# _LT_LANG_FC_CONFIG
-
-
-# _LT_LANG_GCJ_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for the GNU Java Compiler compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_GCJ_CONFIG],
-[AC_REQUIRE([LT_PROG_GCJ])dnl
-AC_LANG_SAVE
-
-# Source file extension for Java test sources.
-ac_ext=java
-
-# Object file extension for compiled Java test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="class foo {}"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC="$CC"
-lt_save_GCC=$GCC
-GCC=yes
-CC=${GCJ-"gcj"}
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)="$LD"
-_LT_CC_BASENAME([$compiler])
-
-# GCJ did not exist at the time GCC didn't implicitly link libc in.
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
-fi
-
-AC_LANG_RESTORE
-
-GCC=$lt_save_GCC
-CC="$lt_save_CC"
-])# _LT_LANG_GCJ_CONFIG
-
-
-# _LT_LANG_RC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for the Windows resource compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_RC_CONFIG],
-[AC_REQUIRE([LT_PROG_RC])dnl
-AC_LANG_SAVE
-
-# Source file extension for RC test sources.
-ac_ext=rc
-
-# Object file extension for compiled RC test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
-
-# Code to be used in simple link tests
-lt_simple_link_test_code="$lt_simple_compile_test_code"
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC="$CC"
-lt_save_GCC=$GCC
-GCC=
-CC=${RC-"windres"}
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_CC_BASENAME([$compiler])
-_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
-
-if test -n "$compiler"; then
- :
- _LT_CONFIG($1)
-fi
-
-GCC=$lt_save_GCC
-AC_LANG_RESTORE
-CC="$lt_save_CC"
-])# _LT_LANG_RC_CONFIG
-
-
-# LT_PROG_GCJ
-# -----------
-AC_DEFUN([LT_PROG_GCJ],
-[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
- [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
- [AC_CHECK_TOOL(GCJ, gcj,)
- test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
- AC_SUBST(GCJFLAGS)])])[]dnl
-])
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
-
-
-# LT_PROG_RC
-# ----------
-AC_DEFUN([LT_PROG_RC],
-[AC_CHECK_TOOL(RC, windres,)
-])
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_RC], [])
-
-
-# _LT_DECL_EGREP
-# --------------
-# If we don't have a new enough Autoconf to choose the best grep
-# available, choose the one first in the user's PATH.
-m4_defun([_LT_DECL_EGREP],
-[AC_REQUIRE([AC_PROG_EGREP])dnl
-AC_REQUIRE([AC_PROG_FGREP])dnl
-test -z "$GREP" && GREP=grep
-_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
-_LT_DECL([], [EGREP], [1], [An ERE matcher])
-_LT_DECL([], [FGREP], [1], [A literal string matcher])
-dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
-AC_SUBST([GREP])
-])
-
-
-# _LT_DECL_OBJDUMP
-# --------------
-# If we don't have a new enough Autoconf to choose the best objdump
-# available, choose the one first in the user's PATH.
-m4_defun([_LT_DECL_OBJDUMP],
-[AC_CHECK_TOOL(OBJDUMP, objdump, false)
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
-AC_SUBST([OBJDUMP])
-])
-
-
-# _LT_DECL_SED
-# ------------
-# Check for a fully-functional sed program, that truncates
-# as few characters as possible. Prefer GNU sed if found.
-m4_defun([_LT_DECL_SED],
-[AC_PROG_SED
-test -z "$SED" && SED=sed
-Xsed="$SED -e 1s/^X//"
-_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
-_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
- [Sed that helps us avoid accidentally triggering echo(1) options like -n])
-])# _LT_DECL_SED
-
-m4_ifndef([AC_PROG_SED], [
-# NOTE: This macro has been submitted for inclusion into #
-# GNU Autoconf as AC_PROG_SED. When it is available in #
-# a released version of Autoconf we should remove this #
-# macro and use it instead. #
-
-m4_defun([AC_PROG_SED],
-[AC_MSG_CHECKING([for a sed that does not truncate output])
-AC_CACHE_VAL(lt_cv_path_SED,
-[# Loop through the user's path and test for sed and gsed.
-# Then use that list of sed's as ones to test for truncation.
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for lt_ac_prog in sed gsed; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
- lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
- fi
- done
- done
-done
-IFS=$as_save_IFS
-lt_ac_max=0
-lt_ac_count=0
-# Add /usr/xpg4/bin/sed as it is typically found on Solaris
-# along with /bin/sed that truncates output.
-for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
- test ! -f $lt_ac_sed && continue
- cat /dev/null > conftest.in
- lt_ac_count=0
- echo $ECHO_N "0123456789$ECHO_C" >conftest.in
- # Check for GNU sed and select it if it is found.
- if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
- lt_cv_path_SED=$lt_ac_sed
- break
- fi
- while true; do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo >>conftest.nl
- $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
- cmp -s conftest.out conftest.nl || break
- # 10000 chars as input seems more than enough
- test $lt_ac_count -gt 10 && break
- lt_ac_count=`expr $lt_ac_count + 1`
- if test $lt_ac_count -gt $lt_ac_max; then
- lt_ac_max=$lt_ac_count
- lt_cv_path_SED=$lt_ac_sed
- fi
- done
-done
-])
-SED=$lt_cv_path_SED
-AC_SUBST([SED])
-AC_MSG_RESULT([$SED])
-])#AC_PROG_SED
-])#m4_ifndef
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_SED], [])
-
-
-# _LT_CHECK_SHELL_FEATURES
-# ------------------------
-# Find out whether the shell is Bourne or XSI compatible,
-# or has some other useful features.
-m4_defun([_LT_CHECK_SHELL_FEATURES],
-[AC_MSG_CHECKING([whether the shell understands some XSI constructs])
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
- test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
- = c,a/b,, \
- && eval 'test $(( 1 + 1 )) -eq 2 \
- && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
- && xsi_shell=yes
-AC_MSG_RESULT([$xsi_shell])
-_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell'])
-
-AC_MSG_CHECKING([whether the shell understands "+="])
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \
- >/dev/null 2>&1 \
- && lt_shell_append=yes
-AC_MSG_RESULT([$lt_shell_append])
-_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append'])
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
- lt_unset=unset
-else
- lt_unset=false
-fi
-_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
- # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
- lt_SP2NL='tr \040 \012'
- lt_NL2SP='tr \015\012 \040\040'
- ;;
- *) # EBCDIC based system
- lt_SP2NL='tr \100 \n'
- lt_NL2SP='tr \r\n \100\100'
- ;;
-esac
-_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
-_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
-])# _LT_CHECK_SHELL_FEATURES
-
-
-# _LT_PROG_XSI_SHELLFNS
-# ---------------------
-# Bourne and XSI compatible variants of some useful shell functions.
-m4_defun([_LT_PROG_XSI_SHELLFNS],
-[case $xsi_shell in
- yes)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result="${1##*/}"
-}
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
- func_basename_result="${1##*/}"
-}
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-func_stripname ()
-{
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary parameter first.
- func_stripname_result=${3}
- func_stripname_result=${func_stripname_result#"${1}"}
- func_stripname_result=${func_stripname_result%"${2}"}
-}
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=${1%%=*}
- func_opt_split_arg=${1#*=}
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- case ${1} in
- *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
- *) func_lo2o_result=${1} ;;
- esac
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=${1%.*}.lo
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=$(( $[*] ))
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=${#1}
-}
-
-_LT_EOF
- ;;
- *) # Bourne compatible functions.
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-dnl func_dirname_and_basename
-dnl A portable version of this function is already defined in general.m4sh
-dnl so there is no need for it here.
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-# func_strip_suffix prefix name
-func_stripname ()
-{
- case ${2} in
- .*) func_stripname_result=`$ECHO "X${3}" \
- | $Xsed -e "s%^${1}%%" -e "s%\\\\${2}\$%%"`;;
- *) func_stripname_result=`$ECHO "X${3}" \
- | $Xsed -e "s%^${1}%%" -e "s%${2}\$%%"`;;
- esac
-}
-
-# sed scripts:
-my_sed_long_opt='1s/^\(-[[^=]]*\)=.*/\1/;q'
-my_sed_long_arg='1s/^-[[^=]]*=//'
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_opt"`
- func_opt_split_arg=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_arg"`
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- func_lo2o_result=`$ECHO "X${1}" | $Xsed -e "$lo2o"`
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=`$ECHO "X${1}" | $Xsed -e 's/\.[[^.]]*$/.lo/'`
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=`expr "$[@]"`
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=`expr "$[1]" : ".*" 2>/dev/null || echo $max_cmd_len`
-}
-
-_LT_EOF
-esac
-
-case $lt_shell_append in
- yes)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$[1]+=\$[2]"
-}
-_LT_EOF
- ;;
- *)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$[1]=\$$[1]\$[2]"
-}
-
-_LT_EOF
- ;;
- esac
-])
-
-# Helper functions for option handling. -*- Autoconf -*-
-#
-# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
-# Written by Gary V. Vaughan, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 6 ltoptions.m4
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
-
-
-# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
-# ------------------------------------------
-m4_define([_LT_MANGLE_OPTION],
-[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
-
-
-# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
-# ---------------------------------------
-# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
-# matching handler defined, dispatch to it. Other OPTION-NAMEs are
-# saved as a flag.
-m4_define([_LT_SET_OPTION],
-[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
-m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
- _LT_MANGLE_DEFUN([$1], [$2]),
- [m4_warning([Unknown $1 option `$2'])])[]dnl
-])
-
-
-# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
-# ------------------------------------------------------------
-# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
-m4_define([_LT_IF_OPTION],
-[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
-
-
-# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
-# -------------------------------------------------------
-# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
-# are set.
-m4_define([_LT_UNLESS_OPTIONS],
-[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
- [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
- [m4_define([$0_found])])])[]dnl
-m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
-])[]dnl
-])
-
-
-# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
-# ----------------------------------------
-# OPTION-LIST is a space-separated list of Libtool options associated
-# with MACRO-NAME. If any OPTION has a matching handler declared with
-# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
-# the unknown option and exit.
-m4_defun([_LT_SET_OPTIONS],
-[# Set options
-m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
- [_LT_SET_OPTION([$1], _LT_Option)])
-
-m4_if([$1],[LT_INIT],[
- dnl
- dnl Simply set some default values (i.e off) if boolean options were not
- dnl specified:
- _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
- ])
- _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
- ])
- dnl
- dnl If no reference was made to various pairs of opposing options, then
- dnl we run the default mode handler for the pair. For example, if neither
- dnl `shared' nor `disable-shared' was passed, we enable building of shared
- dnl archives by default:
- _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
- _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
- _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
- _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
- [_LT_ENABLE_FAST_INSTALL])
- ])
-])# _LT_SET_OPTIONS
-
-
-
-# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
-# -----------------------------------------
-m4_define([_LT_MANGLE_DEFUN],
-[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
-
-
-# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
-# -----------------------------------------------
-m4_define([LT_OPTION_DEFINE],
-[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
-])# LT_OPTION_DEFINE
-
-
-# dlopen
-# ------
-LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
-])
-
-AU_DEFUN([AC_LIBTOOL_DLOPEN],
-[_LT_SET_OPTION([LT_INIT], [dlopen])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `dlopen' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
-
-
-# win32-dll
-# ---------
-# Declare package support for building win32 dll's.
-LT_OPTION_DEFINE([LT_INIT], [win32-dll],
-[enable_win32_dll=yes
-
-case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-cegcc*)
- AC_CHECK_TOOL(AS, as, false)
- AC_CHECK_TOOL(DLLTOOL, dlltool, false)
- AC_CHECK_TOOL(OBJDUMP, objdump, false)
- ;;
-esac
-
-test -z "$AS" && AS=as
-_LT_DECL([], [AS], [0], [Assembler program])dnl
-
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-_LT_DECL([], [DLLTOOL], [0], [DLL creation program])dnl
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [0], [Object dumper program])dnl
-])# win32-dll
-
-AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-_LT_SET_OPTION([LT_INIT], [win32-dll])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `win32-dll' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
-
-
-# _LT_ENABLE_SHARED([DEFAULT])
-# ----------------------------
-# implement the --enable-shared flag, and supports the `shared' and
-# `disable-shared' LT_INIT options.
-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
-m4_define([_LT_ENABLE_SHARED],
-[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([shared],
- [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
- [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
- [p=${PACKAGE-default}
- case $enableval in
- yes) enable_shared=yes ;;
- no) enable_shared=no ;;
- *)
- enable_shared=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
- for pkg in $enableval; do
- IFS="$lt_save_ifs"
- if test "X$pkg" = "X$p"; then
- enable_shared=yes
- fi
- done
- IFS="$lt_save_ifs"
- ;;
- esac],
- [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
-
- _LT_DECL([build_libtool_libs], [enable_shared], [0],
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-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "1.0"
+++ /dev/null
-/* config.h. Generated from config.h.in by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* fdatasync(2) is available */
-#define HAVE_FDATASYNC 1
-
-/* futimes(2) is available */
-#define HAVE_FUTIMES 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* pread(2) and pwrite(2) are available */
-#define HAVE_PREADWRITE 1
-
-/* readahead(2) is available (linux) */
-#define HAVE_READAHEAD 1
-
-/* sendfile(2) is available and supported */
-#define HAVE_SENDFILE 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* sync_file_range(2) is available */
-#define HAVE_SYNC_FILE_RANGE 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libeio"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "1.0"
+++ /dev/null
-/* config.h. Generated from config.h.in by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* fdatasync(2) is available */
-#define HAVE_FDATASYNC 1
-
-/* futimes(2) is available */
-/* #undef HAVE_FUTIMES */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* pread(2) and pwrite(2) are available */
-#define HAVE_PREADWRITE 1
-
-/* readahead(2) is available (linux) */
-/* #undef HAVE_READAHEAD */
-
-/* sendfile(2) is available and supported */
-/* #undef HAVE_SENDFILE */
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* sync_file_range(2) is available */
-/* #undef HAVE_SYNC_FILE_RANGE */
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libeio"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "1.0"
+++ /dev/null
-AC_PREREQ(2.59)
-AC_INIT
-AC_CONFIG_SRCDIR([eio.h])
-AC_CONFIG_HEADERS([config.h])
-
-AM_INIT_AUTOMAKE(libeio,1.0)
-AM_MAINTAINER_MODE
-AC_PROG_LIBTOOL
-
-AC_PROG_CC
-
-if test "x$GCC" = xyes ; then
- CFLAGS="$CFLAGS -O3"
-fi
-
-dnl somebody will forgive me
-CFLAGS="-D_GNU_SOURCE $CFLAGS"
-
-m4_include([libeio.m4])
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <poll.h>
-#include <string.h>
-#include <assert.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include "eio.h"
-
-int respipe [2];
-
-void
-want_poll (void)
-{
- char dummy;
- printf ("want_poll ()\n");
- write (respipe [1], &dummy, 1);
-}
-
-void
-done_poll (void)
-{
- char dummy;
- printf ("done_poll ()\n");
- read (respipe [0], &dummy, 1);
-}
-
-void
-event_loop (void)
-{
- // an event loop. yeah.
- struct pollfd pfd;
- pfd.fd = respipe [0];
- pfd.events = POLLIN;
-
- printf ("\nentering event loop\n");
- while (eio_nreqs ())
- {
- poll (&pfd, 1, -1);
- printf ("eio_poll () = %d\n", eio_poll ());
- }
- printf ("leaving event loop\n");
-}
-
-int
-res_cb (eio_req *req)
-{
- printf ("res_cb(%d|%s) = %d\n", req->type, req->data ? req->data : "?", EIO_RESULT (req));
-
- if (req->result < 0)
- abort ();
-
- return 0;
-}
-
-int
-readdir_cb (eio_req *req)
-{
- char *buf = (char *)EIO_BUF (req);
-
- printf ("readdir_cb = %d\n", EIO_RESULT (req));
-
- if (EIO_RESULT (req) < 0)
- return 0;
-
- while (EIO_RESULT (req)--)
- {
- printf ("readdir = <%s>\n", buf);
- buf += strlen (buf) + 1;
- }
-
- return 0;
-}
-
-int
-stat_cb (eio_req *req)
-{
- struct stat *buf = EIO_STAT_BUF (req);
-
- if (req->type == EIO_FSTAT)
- printf ("fstat_cb = %d\n", EIO_RESULT (req));
- else
- printf ("stat_cb(%s) = %d\n", EIO_PATH (req), EIO_RESULT (req));
-
- if (!EIO_RESULT (req))
- printf ("stat size %d perm 0%o\n", buf->st_size, buf->st_mode & 0777);
-
- return 0;
-}
-
-int
-read_cb (eio_req *req)
-{
- unsigned char *buf = (unsigned char *)EIO_BUF (req);
-
- printf ("read_cb = %d (%02x%02x%02x%02x %02x%02x%02x%02x)\n",
- EIO_RESULT (req),
- buf [0], buf [1], buf [2], buf [3],
- buf [4], buf [5], buf [6], buf [7]);
-
- return 0;
-}
-
-int last_fd;
-
-int
-open_cb (eio_req *req)
-{
- printf ("open_cb = %d\n", EIO_RESULT (req));
-
- last_fd = EIO_RESULT (req);
-
- return 0;
-}
-
-int
-main (void)
-{
- printf ("pipe ()\n");
- if (pipe (respipe)) abort ();
-
- printf ("eio_init ()\n");
- if (eio_init (want_poll, done_poll)) abort ();
-
- do
- {
- /* avoid relative paths yourself(!) */
- eio_mkdir ("eio-test-dir", 0777, 0, res_cb, "mkdir");
- eio_nop (0, res_cb, "nop");
- event_loop ();
-
- eio_stat ("eio-test-dir", 0, stat_cb, "stat");
- eio_lstat ("eio-test-dir", 0, stat_cb, "stat");
- eio_open ("eio-test-dir/eio-test-file", O_RDWR | O_CREAT, 0777, 0, open_cb, "open");
- eio_symlink ("test", "eio-test-dir/eio-symlink", 0, res_cb, "symlink");
- eio_mknod ("eio-test-dir/eio-fifo", S_IFIFO, 0, 0, res_cb, "mknod");
- event_loop ();
-
- eio_utime ("eio-test-dir", 12345.678, 23456.789, 0, res_cb, "utime");
- eio_futime (last_fd, 92345.678, 93456.789, 0, res_cb, "futime");
- eio_chown ("eio-test-dir", getuid (), getgid (), 0, res_cb, "chown");
- eio_fchown (last_fd, getuid (), getgid (), 0, res_cb, "fchown");
- eio_fchmod (last_fd, 0723, 0, res_cb, "fchmod");
- eio_readdir ("eio-test-dir", 0, 0, readdir_cb, "readdir");
- eio_readdir ("/nonexistant", 0, 0, readdir_cb, "readdir");
- eio_fstat (last_fd, 0, stat_cb, "stat");
- eio_write (last_fd, "test\nfail\n", 10, 4, 0, res_cb, "write");
- event_loop ();
-
- eio_read (last_fd, 0, 8, 0, EIO_PRI_DEFAULT, read_cb, "read");
- eio_readlink ("eio-test-dir/eio-symlink", 0, res_cb, "readlink");
- event_loop ();
-
- eio_dup2 (1, 2, EIO_PRI_DEFAULT, res_cb, "dup"); // dup stdout to stderr
- eio_chmod ("eio-test-dir", 0765, 0, res_cb, "chmod");
- eio_ftruncate (last_fd, 9, 0, res_cb, "ftruncate");
- eio_fdatasync (last_fd, 0, res_cb, "fdatasync");
- eio_fsync (last_fd, 0, res_cb, "fsync");
- eio_sync (0, res_cb, "sync");
- eio_busy (0.5, 0, res_cb, "busy");
- event_loop ();
-
- eio_sendfile (1, last_fd, 4, 5, 0, res_cb, "sendfile"); // write "test\n" to stdout
- eio_fstat (last_fd, 0, stat_cb, "stat");
- event_loop ();
-
- eio_truncate ("eio-test-dir/eio-test-file", 6, 0, res_cb, "truncate");
- eio_readahead (last_fd, 0, 64, 0, res_cb, "readahead");
- event_loop ();
-
- eio_close (last_fd, 0, res_cb, "close");
- eio_link ("eio-test-dir/eio-test-file", "eio-test-dir/eio-test-file-2", 0, res_cb, "link");
- event_loop ();
-
- eio_rename ("eio-test-dir/eio-test-file", "eio-test-dir/eio-test-file-renamed", 0, res_cb, "rename");
- event_loop ();
-
- eio_unlink ("eio-test-dir/eio-fifo", 0, res_cb, "unlink");
- eio_unlink ("eio-test-dir/eio-symlink", 0, res_cb, "unlink");
- eio_unlink ("eio-test-dir/eio-test-file-2", 0, res_cb, "unlink");
- eio_unlink ("eio-test-dir/eio-test-file-renamed", 0, res_cb, "unlink");
- event_loop ();
-
- eio_rmdir ("eio-test-dir", 0, res_cb, "rmdir");
- event_loop ();
- }
- while (0);
-
- return 0;
-}
-
+++ /dev/null
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "LIBEIO 3"
-.TH LIBEIO 3 "2008-05-11" "libeio-1.0" "libeio - truly asynchronous POSIX I/O"
-.\" For nroff, turn off justification. Always turn off hyphenation; it makes
-.\" way too many mistakes in technical documents.
-.if n .ad l
-.nh
-.SH "NAME"
-libev \- a high performance full\-featured event loop written in C
-.SH "SYNOPSIS"
-.IX Header "SYNOPSIS"
-.Vb 1
-\& #include <ev.h>
-.Ve
-.Sh "\s-1EXAMPLE\s0 \s-1PROGRAM\s0"
-.IX Subsection "EXAMPLE PROGRAM"
-.Vb 2
-\& // a single header file is required
-\& #include <ev.h>
-\&
-\& // every watcher type has its own typedef\*(Aqd struct
-\& // with the name ev_<type>
-\& ev_io stdin_watcher;
-\& ev_timer timeout_watcher;
-\&
-\& // all watcher callbacks have a similar signature
-\& // this callback is called when data is readable on stdin
-\& static void
-\& stdin_cb (EV_P_ struct ev_io *w, int revents)
-\& {
-\& puts ("stdin ready");
-\& // for one\-shot events, one must manually stop the watcher
-\& // with its corresponding stop function.
-\& ev_io_stop (EV_A_ w);
-\&
-\& // this causes all nested ev_loop\*(Aqs to stop iterating
-\& ev_unloop (EV_A_ EVUNLOOP_ALL);
-\& }
-\&
-\& // another callback, this time for a time\-out
-\& static void
-\& timeout_cb (EV_P_ struct ev_timer *w, int revents)
-\& {
-\& puts ("timeout");
-\& // this causes the innermost ev_loop to stop iterating
-\& ev_unloop (EV_A_ EVUNLOOP_ONE);
-\& }
-\&
-\& int
-\& main (void)
-\& {
-\& // use the default event loop unless you have special needs
-\& struct ev_loop *loop = ev_default_loop (0);
-\&
-\& // initialise an io watcher, then start it
-\& // this one will watch for stdin to become readable
-\& ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ);
-\& ev_io_start (loop, &stdin_watcher);
-\&
-\& // initialise a timer watcher, then start it
-\& // simple non\-repeating 5.5 second timeout
-\& ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-\& ev_timer_start (loop, &timeout_watcher);
-\&
-\& // now wait for events to arrive
-\& ev_loop (loop, 0);
-\&
-\& // unloop was called, so exit
-\& return 0;
-\& }
-.Ve
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-The newest version of this document is also available as an html-formatted
-web page you might find easier to navigate when reading it for the first
-time: <http://cvs.schmorp.de/libev/ev.html>.
-.PP
-Libev is an event loop: you register interest in certain events (such as a
-file descriptor being readable or a timeout occurring), and it will manage
-these event sources and provide your program with events.
-.PP
-To do this, it must take more or less complete control over your process
-(or thread) by executing the \fIevent loop\fR handler, and will then
-communicate events via a callback mechanism.
-.PP
-You register interest in certain events by registering so-called \fIevent
-watchers\fR, which are relatively small C structures you initialise with the
-details of the event, and then hand it over to libev by \fIstarting\fR the
-watcher.
-.Sh "\s-1FEATURES\s0"
-.IX Subsection "FEATURES"
-Libev supports \f(CW\*(C`select\*(C'\fR, \f(CW\*(C`poll\*(C'\fR, the Linux-specific \f(CW\*(C`epoll\*(C'\fR, the
-BSD-specific \f(CW\*(C`kqueue\*(C'\fR and the Solaris-specific event port mechanisms
-for file descriptor events (\f(CW\*(C`ev_io\*(C'\fR), the Linux \f(CW\*(C`inotify\*(C'\fR interface
-(for \f(CW\*(C`ev_stat\*(C'\fR), relative timers (\f(CW\*(C`ev_timer\*(C'\fR), absolute timers
-with customised rescheduling (\f(CW\*(C`ev_periodic\*(C'\fR), synchronous signals
-(\f(CW\*(C`ev_signal\*(C'\fR), process status change events (\f(CW\*(C`ev_child\*(C'\fR), and event
-watchers dealing with the event loop mechanism itself (\f(CW\*(C`ev_idle\*(C'\fR,
-\&\f(CW\*(C`ev_embed\*(C'\fR, \f(CW\*(C`ev_prepare\*(C'\fR and \f(CW\*(C`ev_check\*(C'\fR watchers) as well as
-file watchers (\f(CW\*(C`ev_stat\*(C'\fR) and even limited support for fork events
-(\f(CW\*(C`ev_fork\*(C'\fR).
-.PP
-It also is quite fast (see this
-benchmark comparing it to libevent
-for example).
-.Sh "\s-1CONVENTIONS\s0"
-.IX Subsection "CONVENTIONS"
-Libev is very configurable. In this manual the default (and most common)
-configuration will be described, which supports multiple event loops. For
-more info about various configuration options please have a look at
-\&\fB\s-1EMBED\s0\fR section in this manual. If libev was configured without support
-for multiple event loops, then all functions taking an initial argument of
-name \f(CW\*(C`loop\*(C'\fR (which is always of type \f(CW\*(C`struct ev_loop *\*(C'\fR) will not have
-this argument.
-.Sh "\s-1TIME\s0 \s-1REPRESENTATION\s0"
-.IX Subsection "TIME REPRESENTATION"
-Libev represents time as a single floating point number, representing the
-(fractional) number of seconds since the (\s-1POSIX\s0) epoch (somewhere near
-the beginning of 1970, details are complicated, don't ask). This type is
-called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use too. It usually aliases
-to the \f(CW\*(C`double\*(C'\fR type in C, and when you need to do any calculations on
-it, you should treat it as some floatingpoint value. Unlike the name
-component \f(CW\*(C`stamp\*(C'\fR might indicate, it is also used for time differences
-throughout libev.
-.SH "GLOBAL FUNCTIONS"
-.IX Header "GLOBAL FUNCTIONS"
-These functions can be called anytime, even before initialising the
-library in any way.
-.IP "ev_tstamp ev_time ()" 4
-.IX Item "ev_tstamp ev_time ()"
-Returns the current time as libev would use it. Please note that the
-\&\f(CW\*(C`ev_now\*(C'\fR function is usually faster and also often returns the timestamp
-you actually want to know.
-.IP "ev_sleep (ev_tstamp interval)" 4
-.IX Item "ev_sleep (ev_tstamp interval)"
-Sleep for the given interval: The current thread will be blocked until
-either it is interrupted or the given time interval has passed. Basically
-this is a subsecond-resolution \f(CW\*(C`sleep ()\*(C'\fR.
-.IP "int ev_version_major ()" 4
-.IX Item "int ev_version_major ()"
-.PD 0
-.IP "int ev_version_minor ()" 4
-.IX Item "int ev_version_minor ()"
-.PD
-You can find out the major and minor \s-1ABI\s0 version numbers of the library
-you linked against by calling the functions \f(CW\*(C`ev_version_major\*(C'\fR and
-\&\f(CW\*(C`ev_version_minor\*(C'\fR. If you want, you can compare against the global
-symbols \f(CW\*(C`EV_VERSION_MAJOR\*(C'\fR and \f(CW\*(C`EV_VERSION_MINOR\*(C'\fR, which specify the
-version of the library your program was compiled against.
-.Sp
-These version numbers refer to the \s-1ABI\s0 version of the library, not the
-release version.
-.Sp
-Usually, it's a good idea to terminate if the major versions mismatch,
-as this indicates an incompatible change. Minor versions are usually
-compatible to older versions, so a larger minor version alone is usually
-not a problem.
-.Sp
-Example: Make sure we haven't accidentally been linked against the wrong
-version.
-.Sp
-.Vb 3
-\& assert (("libev version mismatch",
-\& ev_version_major () == EV_VERSION_MAJOR
-\& && ev_version_minor () >= EV_VERSION_MINOR));
-.Ve
-.IP "unsigned int ev_supported_backends ()" 4
-.IX Item "unsigned int ev_supported_backends ()"
-Return the set of all backends (i.e. their corresponding \f(CW\*(C`EV_BACKEND_*\*(C'\fR
-value) compiled into this binary of libev (independent of their
-availability on the system you are running on). See \f(CW\*(C`ev_default_loop\*(C'\fR for
-a description of the set values.
-.Sp
-Example: make sure we have the epoll method, because yeah this is cool and
-a must have and can we have a torrent of it please!!!11
-.Sp
-.Vb 2
-\& assert (("sorry, no epoll, no sex",
-\& ev_supported_backends () & EVBACKEND_EPOLL));
-.Ve
-.IP "unsigned int ev_recommended_backends ()" 4
-.IX Item "unsigned int ev_recommended_backends ()"
-Return the set of all backends compiled into this binary of libev and also
-recommended for this platform. This set is often smaller than the one
-returned by \f(CW\*(C`ev_supported_backends\*(C'\fR, as for example kqueue is broken on
-most BSDs and will not be autodetected unless you explicitly request it
-(assuming you know what you are doing). This is the set of backends that
-libev will probe for if you specify no backends explicitly.
-.IP "unsigned int ev_embeddable_backends ()" 4
-.IX Item "unsigned int ev_embeddable_backends ()"
-Returns the set of backends that are embeddable in other event loops. This
-is the theoretical, all-platform, value. To find which backends
-might be supported on the current system, you would need to look at
-\&\f(CW\*(C`ev_embeddable_backends () & ev_supported_backends ()\*(C'\fR, likewise for
-recommended ones.
-.Sp
-See the description of \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.IP "ev_set_allocator (void *(*cb)(void *ptr, long size))" 4
-.IX Item "ev_set_allocator (void *(*cb)(void *ptr, long size))"
-Sets the allocation function to use (the prototype is similar \- the
-semantics are identical to the \f(CW\*(C`realloc\*(C'\fR C89/SuS/POSIX function). It is
-used to allocate and free memory (no surprises here). If it returns zero
-when memory needs to be allocated (\f(CW\*(C`size != 0\*(C'\fR), the library might abort
-or take some potentially destructive action.
-.Sp
-Since some systems (at least OpenBSD and Darwin) fail to implement
-correct \f(CW\*(C`realloc\*(C'\fR semantics, libev will use a wrapper around the system
-\&\f(CW\*(C`realloc\*(C'\fR and \f(CW\*(C`free\*(C'\fR functions by default.
-.Sp
-You could override this function in high-availability programs to, say,
-free some memory if it cannot allocate memory, to use a special allocator,
-or even to sleep a while and retry until some memory is available.
-.Sp
-Example: Replace the libev allocator with one that waits a bit and then
-retries (example requires a standards-compliant \f(CW\*(C`realloc\*(C'\fR).
-.Sp
-.Vb 6
-\& static void *
-\& persistent_realloc (void *ptr, size_t size)
-\& {
-\& for (;;)
-\& {
-\& void *newptr = realloc (ptr, size);
-\&
-\& if (newptr)
-\& return newptr;
-\&
-\& sleep (60);
-\& }
-\& }
-\&
-\& ...
-\& ev_set_allocator (persistent_realloc);
-.Ve
-.IP "ev_set_syserr_cb (void (*cb)(const char *msg));" 4
-.IX Item "ev_set_syserr_cb (void (*cb)(const char *msg));"
-Set the callback function to call on a retryable syscall error (such
-as failed select, poll, epoll_wait). The message is a printable string
-indicating the system call or subsystem causing the problem. If this
-callback is set, then libev will expect it to remedy the sitution, no
-matter what, when it returns. That is, libev will generally retry the
-requested operation, or, if the condition doesn't go away, do bad stuff
-(such as abort).
-.Sp
-Example: This is basically the same thing that libev does internally, too.
-.Sp
-.Vb 6
-\& static void
-\& fatal_error (const char *msg)
-\& {
-\& perror (msg);
-\& abort ();
-\& }
-\&
-\& ...
-\& ev_set_syserr_cb (fatal_error);
-.Ve
-.SH "FUNCTIONS CONTROLLING THE EVENT LOOP"
-.IX Header "FUNCTIONS CONTROLLING THE EVENT LOOP"
-An event loop is described by a \f(CW\*(C`struct ev_loop *\*(C'\fR. The library knows two
-types of such loops, the \fIdefault\fR loop, which supports signals and child
-events, and dynamically created loops which do not.
-.IP "struct ev_loop *ev_default_loop (unsigned int flags)" 4
-.IX Item "struct ev_loop *ev_default_loop (unsigned int flags)"
-This will initialise the default event loop if it hasn't been initialised
-yet and return it. If the default loop could not be initialised, returns
-false. If it already was initialised it simply returns it (and ignores the
-flags. If that is troubling you, check \f(CW\*(C`ev_backend ()\*(C'\fR afterwards).
-.Sp
-If you don't know what event loop to use, use the one returned from this
-function.
-.Sp
-Note that this function is \fInot\fR thread-safe, so if you want to use it
-from multiple threads, you have to lock (note also that this is unlikely,
-as loops cannot bes hared easily between threads anyway).
-.Sp
-The default loop is the only loop that can handle \f(CW\*(C`ev_signal\*(C'\fR and
-\&\f(CW\*(C`ev_child\*(C'\fR watchers, and to do this, it always registers a handler
-for \f(CW\*(C`SIGCHLD\*(C'\fR. If this is a problem for your app you can either
-create a dynamic loop with \f(CW\*(C`ev_loop_new\*(C'\fR that doesn't do that, or you
-can simply overwrite the \f(CW\*(C`SIGCHLD\*(C'\fR signal handler \fIafter\fR calling
-\&\f(CW\*(C`ev_default_init\*(C'\fR.
-.Sp
-The flags argument can be used to specify special behaviour or specific
-backends to use, and is usually specified as \f(CW0\fR (or \f(CW\*(C`EVFLAG_AUTO\*(C'\fR).
-.Sp
-The following flags are supported:
-.RS 4
-.ie n .IP """EVFLAG_AUTO""" 4
-.el .IP "\f(CWEVFLAG_AUTO\fR" 4
-.IX Item "EVFLAG_AUTO"
-The default flags value. Use this if you have no clue (it's the right
-thing, believe me).
-.ie n .IP """EVFLAG_NOENV""" 4
-.el .IP "\f(CWEVFLAG_NOENV\fR" 4
-.IX Item "EVFLAG_NOENV"
-If this flag bit is ored into the flag value (or the program runs setuid
-or setgid) then libev will \fInot\fR look at the environment variable
-\&\f(CW\*(C`LIBEV_FLAGS\*(C'\fR. Otherwise (the default), this environment variable will
-override the flags completely if it is found in the environment. This is
-useful to try out specific backends to test their performance, or to work
-around bugs.
-.ie n .IP """EVFLAG_FORKCHECK""" 4
-.el .IP "\f(CWEVFLAG_FORKCHECK\fR" 4
-.IX Item "EVFLAG_FORKCHECK"
-Instead of calling \f(CW\*(C`ev_default_fork\*(C'\fR or \f(CW\*(C`ev_loop_fork\*(C'\fR manually after
-a fork, you can also make libev check for a fork in each iteration by
-enabling this flag.
-.Sp
-This works by calling \f(CW\*(C`getpid ()\*(C'\fR on every iteration of the loop,
-and thus this might slow down your event loop if you do a lot of loop
-iterations and little real work, but is usually not noticeable (on my
-GNU/Linux system for example, \f(CW\*(C`getpid\*(C'\fR is actually a simple 5\-insn sequence
-without a syscall and thus \fIvery\fR fast, but my GNU/Linux system also has
-\&\f(CW\*(C`pthread_atfork\*(C'\fR which is even faster).
-.Sp
-The big advantage of this flag is that you can forget about fork (and
-forget about forgetting to tell libev about forking) when you use this
-flag.
-.Sp
-This flag setting cannot be overriden or specified in the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR
-environment variable.
-.ie n .IP """EVBACKEND_SELECT"" (value 1, portable select backend)" 4
-.el .IP "\f(CWEVBACKEND_SELECT\fR (value 1, portable select backend)" 4
-.IX Item "EVBACKEND_SELECT (value 1, portable select backend)"
-This is your standard \fIselect\fR\|(2) backend. Not \fIcompletely\fR standard, as
-libev tries to roll its own fd_set with no limits on the number of fds,
-but if that fails, expect a fairly low limit on the number of fds when
-using this backend. It doesn't scale too well (O(highest_fd)), but its
-usually the fastest backend for a low number of (low-numbered :) fds.
-.Sp
-To get good performance out of this backend you need a high amount of
-parallelity (most of the file descriptors should be busy). If you are
-writing a server, you should \f(CW\*(C`accept ()\*(C'\fR in a loop to accept as many
-connections as possible during one iteration. You might also want to have
-a look at \f(CW\*(C`ev_set_io_collect_interval ()\*(C'\fR to increase the amount of
-readyness notifications you get per iteration.
-.ie n .IP """EVBACKEND_POLL"" (value 2, poll backend, available everywhere except on windows)" 4
-.el .IP "\f(CWEVBACKEND_POLL\fR (value 2, poll backend, available everywhere except on windows)" 4
-.IX Item "EVBACKEND_POLL (value 2, poll backend, available everywhere except on windows)"
-And this is your standard \fIpoll\fR\|(2) backend. It's more complicated
-than select, but handles sparse fds better and has no artificial
-limit on the number of fds you can use (except it will slow down
-considerably with a lot of inactive fds). It scales similarly to select,
-i.e. O(total_fds). See the entry for \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR, above, for
-performance tips.
-.ie n .IP """EVBACKEND_EPOLL"" (value 4, Linux)" 4
-.el .IP "\f(CWEVBACKEND_EPOLL\fR (value 4, Linux)" 4
-.IX Item "EVBACKEND_EPOLL (value 4, Linux)"
-For few fds, this backend is a bit little slower than poll and select,
-but it scales phenomenally better. While poll and select usually scale
-like O(total_fds) where n is the total number of fds (or the highest fd),
-epoll scales either O(1) or O(active_fds). The epoll design has a number
-of shortcomings, such as silently dropping events in some hard-to-detect
-cases and requiring a syscall per fd change, no fork support and bad
-support for dup.
-.Sp
-While stopping, setting and starting an I/O watcher in the same iteration
-will result in some caching, there is still a syscall per such incident
-(because the fd could point to a different file description now), so its
-best to avoid that. Also, \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors might not work
-very well if you register events for both fds.
-.Sp
-Please note that epoll sometimes generates spurious notifications, so you
-need to use non-blocking I/O or other means to avoid blocking when no data
-(or space) is available.
-.Sp
-Best performance from this backend is achieved by not unregistering all
-watchers for a file descriptor until it has been closed, if possible, i.e.
-keep at least one watcher active per fd at all times.
-.Sp
-While nominally embeddeble in other event loops, this feature is broken in
-all kernel versions tested so far.
-.ie n .IP """EVBACKEND_KQUEUE"" (value 8, most \s-1BSD\s0 clones)" 4
-.el .IP "\f(CWEVBACKEND_KQUEUE\fR (value 8, most \s-1BSD\s0 clones)" 4
-.IX Item "EVBACKEND_KQUEUE (value 8, most BSD clones)"
-Kqueue deserves special mention, as at the time of this writing, it
-was broken on all BSDs except NetBSD (usually it doesn't work reliably
-with anything but sockets and pipes, except on Darwin, where of course
-it's completely useless). For this reason it's not being \*(L"autodetected\*(R"
-unless you explicitly specify it explicitly in the flags (i.e. using
-\&\f(CW\*(C`EVBACKEND_KQUEUE\*(C'\fR) or libev was compiled on a known-to-be-good (\-enough)
-system like NetBSD.
-.Sp
-You still can embed kqueue into a normal poll or select backend and use it
-only for sockets (after having made sure that sockets work with kqueue on
-the target platform). See \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.Sp
-It scales in the same way as the epoll backend, but the interface to the
-kernel is more efficient (which says nothing about its actual speed, of
-course). While stopping, setting and starting an I/O watcher does never
-cause an extra syscall as with \f(CW\*(C`EVBACKEND_EPOLL\*(C'\fR, it still adds up to
-two event changes per incident, support for \f(CW\*(C`fork ()\*(C'\fR is very bad and it
-drops fds silently in similarly hard-to-detect cases.
-.Sp
-This backend usually performs well under most conditions.
-.Sp
-While nominally embeddable in other event loops, this doesn't work
-everywhere, so you might need to test for this. And since it is broken
-almost everywhere, you should only use it when you have a lot of sockets
-(for which it usually works), by embedding it into another event loop
-(e.g. \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR) and using it only for
-sockets.
-.ie n .IP """EVBACKEND_DEVPOLL"" (value 16, Solaris 8)" 4
-.el .IP "\f(CWEVBACKEND_DEVPOLL\fR (value 16, Solaris 8)" 4
-.IX Item "EVBACKEND_DEVPOLL (value 16, Solaris 8)"
-This is not implemented yet (and might never be, unless you send me an
-implementation). According to reports, \f(CW\*(C`/dev/poll\*(C'\fR only supports sockets
-and is not embeddable, which would limit the usefulness of this backend
-immensely.
-.ie n .IP """EVBACKEND_PORT"" (value 32, Solaris 10)" 4
-.el .IP "\f(CWEVBACKEND_PORT\fR (value 32, Solaris 10)" 4
-.IX Item "EVBACKEND_PORT (value 32, Solaris 10)"
-This uses the Solaris 10 event port mechanism. As with everything on Solaris,
-it's really slow, but it still scales very well (O(active_fds)).
-.Sp
-Please note that solaris event ports can deliver a lot of spurious
-notifications, so you need to use non-blocking I/O or other means to avoid
-blocking when no data (or space) is available.
-.Sp
-While this backend scales well, it requires one system call per active
-file descriptor per loop iteration. For small and medium numbers of file
-descriptors a \*(L"slow\*(R" \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR backend
-might perform better.
-.Sp
-On the positive side, ignoring the spurious readyness notifications, this
-backend actually performed to specification in all tests and is fully
-embeddable, which is a rare feat among the OS-specific backends.
-.ie n .IP """EVBACKEND_ALL""" 4
-.el .IP "\f(CWEVBACKEND_ALL\fR" 4
-.IX Item "EVBACKEND_ALL"
-Try all backends (even potentially broken ones that wouldn't be tried
-with \f(CW\*(C`EVFLAG_AUTO\*(C'\fR). Since this is a mask, you can do stuff such as
-\&\f(CW\*(C`EVBACKEND_ALL & ~EVBACKEND_KQUEUE\*(C'\fR.
-.Sp
-It is definitely not recommended to use this flag.
-.RE
-.RS 4
-.Sp
-If one or more of these are ored into the flags value, then only these
-backends will be tried (in the reverse order as listed here). If none are
-specified, all backends in \f(CW\*(C`ev_recommended_backends ()\*(C'\fR will be tried.
-.Sp
-The most typical usage is like this:
-.Sp
-.Vb 2
-\& if (!ev_default_loop (0))
-\& fatal ("could not initialise libev, bad $LIBEV_FLAGS in environment?");
-.Ve
-.Sp
-Restrict libev to the select and poll backends, and do not allow
-environment settings to be taken into account:
-.Sp
-.Vb 1
-\& ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV);
-.Ve
-.Sp
-Use whatever libev has to offer, but make sure that kqueue is used if
-available (warning, breaks stuff, best use only with your own private
-event loop and only if you know the \s-1OS\s0 supports your types of fds):
-.Sp
-.Vb 1
-\& ev_default_loop (ev_recommended_backends () | EVBACKEND_KQUEUE);
-.Ve
-.RE
-.IP "struct ev_loop *ev_loop_new (unsigned int flags)" 4
-.IX Item "struct ev_loop *ev_loop_new (unsigned int flags)"
-Similar to \f(CW\*(C`ev_default_loop\*(C'\fR, but always creates a new event loop that is
-always distinct from the default loop. Unlike the default loop, it cannot
-handle signal and child watchers, and attempts to do so will be greeted by
-undefined behaviour (or a failed assertion if assertions are enabled).
-.Sp
-Note that this function \fIis\fR thread-safe, and the recommended way to use
-libev with threads is indeed to create one loop per thread, and using the
-default loop in the \*(L"main\*(R" or \*(L"initial\*(R" thread.
-.Sp
-Example: Try to create a event loop that uses epoll and nothing else.
-.Sp
-.Vb 3
-\& struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV);
-\& if (!epoller)
-\& fatal ("no epoll found here, maybe it hides under your chair");
-.Ve
-.IP "ev_default_destroy ()" 4
-.IX Item "ev_default_destroy ()"
-Destroys the default loop again (frees all memory and kernel state
-etc.). None of the active event watchers will be stopped in the normal
-sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your
-responsibility to either stop all watchers cleanly yoursef \fIbefore\fR
-calling this function, or cope with the fact afterwards (which is usually
-the easiest thing, you can just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them
-for example).
-.Sp
-Note that certain global state, such as signal state, will not be freed by
-this function, and related watchers (such as signal and child watchers)
-would need to be stopped manually.
-.Sp
-In general it is not advisable to call this function except in the
-rare occasion where you really need to free e.g. the signal handling
-pipe fds. If you need dynamically allocated loops it is better to use
-\&\f(CW\*(C`ev_loop_new\*(C'\fR and \f(CW\*(C`ev_loop_destroy\*(C'\fR).
-.IP "ev_loop_destroy (loop)" 4
-.IX Item "ev_loop_destroy (loop)"
-Like \f(CW\*(C`ev_default_destroy\*(C'\fR, but destroys an event loop created by an
-earlier call to \f(CW\*(C`ev_loop_new\*(C'\fR.
-.IP "ev_default_fork ()" 4
-.IX Item "ev_default_fork ()"
-This function sets a flag that causes subsequent \f(CW\*(C`ev_loop\*(C'\fR iterations
-to reinitialise the kernel state for backends that have one. Despite the
-name, you can call it anytime, but it makes most sense after forking, in
-the child process (or both child and parent, but that again makes little
-sense). You \fImust\fR call it in the child before using any of the libev
-functions, and it will only take effect at the next \f(CW\*(C`ev_loop\*(C'\fR iteration.
-.Sp
-On the other hand, you only need to call this function in the child
-process if and only if you want to use the event library in the child. If
-you just fork+exec, you don't have to call it at all.
-.Sp
-The function itself is quite fast and it's usually not a problem to call
-it just in case after a fork. To make this easy, the function will fit in
-quite nicely into a call to \f(CW\*(C`pthread_atfork\*(C'\fR:
-.Sp
-.Vb 1
-\& pthread_atfork (0, 0, ev_default_fork);
-.Ve
-.IP "ev_loop_fork (loop)" 4
-.IX Item "ev_loop_fork (loop)"
-Like \f(CW\*(C`ev_default_fork\*(C'\fR, but acts on an event loop created by
-\&\f(CW\*(C`ev_loop_new\*(C'\fR. Yes, you have to call this on every allocated event loop
-after fork, and how you do this is entirely your own problem.
-.IP "int ev_is_default_loop (loop)" 4
-.IX Item "int ev_is_default_loop (loop)"
-Returns true when the given loop actually is the default loop, false otherwise.
-.IP "unsigned int ev_loop_count (loop)" 4
-.IX Item "unsigned int ev_loop_count (loop)"
-Returns the count of loop iterations for the loop, which is identical to
-the number of times libev did poll for new events. It starts at \f(CW0\fR and
-happily wraps around with enough iterations.
-.Sp
-This value can sometimes be useful as a generation counter of sorts (it
-\&\*(L"ticks\*(R" the number of loop iterations), as it roughly corresponds with
-\&\f(CW\*(C`ev_prepare\*(C'\fR and \f(CW\*(C`ev_check\*(C'\fR calls.
-.IP "unsigned int ev_backend (loop)" 4
-.IX Item "unsigned int ev_backend (loop)"
-Returns one of the \f(CW\*(C`EVBACKEND_*\*(C'\fR flags indicating the event backend in
-use.
-.IP "ev_tstamp ev_now (loop)" 4
-.IX Item "ev_tstamp ev_now (loop)"
-Returns the current \*(L"event loop time\*(R", which is the time the event loop
-received events and started processing them. This timestamp does not
-change as long as callbacks are being processed, and this is also the base
-time used for relative timers. You can treat it as the timestamp of the
-event occurring (or more correctly, libev finding out about it).
-.IP "ev_loop (loop, int flags)" 4
-.IX Item "ev_loop (loop, int flags)"
-Finally, this is it, the event handler. This function usually is called
-after you initialised all your watchers and you want to start handling
-events.
-.Sp
-If the flags argument is specified as \f(CW0\fR, it will not return until
-either no event watchers are active anymore or \f(CW\*(C`ev_unloop\*(C'\fR was called.
-.Sp
-Please note that an explicit \f(CW\*(C`ev_unloop\*(C'\fR is usually better than
-relying on all watchers to be stopped when deciding when a program has
-finished (especially in interactive programs), but having a program that
-automatically loops as long as it has to and no longer by virtue of
-relying on its watchers stopping correctly is a thing of beauty.
-.Sp
-A flags value of \f(CW\*(C`EVLOOP_NONBLOCK\*(C'\fR will look for new events, will handle
-those events and any outstanding ones, but will not block your process in
-case there are no events and will return after one iteration of the loop.
-.Sp
-A flags value of \f(CW\*(C`EVLOOP_ONESHOT\*(C'\fR will look for new events (waiting if
-neccessary) and will handle those and any outstanding ones. It will block
-your process until at least one new event arrives, and will return after
-one iteration of the loop. This is useful if you are waiting for some
-external event in conjunction with something not expressible using other
-libev watchers. However, a pair of \f(CW\*(C`ev_prepare\*(C'\fR/\f(CW\*(C`ev_check\*(C'\fR watchers is
-usually a better approach for this kind of thing.
-.Sp
-Here are the gory details of what \f(CW\*(C`ev_loop\*(C'\fR does:
-.Sp
-.Vb 10
-\& \- Before the first iteration, call any pending watchers.
-\& * If EVFLAG_FORKCHECK was used, check for a fork.
-\& \- If a fork was detected, queue and call all fork watchers.
-\& \- Queue and call all prepare watchers.
-\& \- If we have been forked, recreate the kernel state.
-\& \- Update the kernel state with all outstanding changes.
-\& \- Update the "event loop time".
-\& \- Calculate for how long to sleep or block, if at all
-\& (active idle watchers, EVLOOP_NONBLOCK or not having
-\& any active watchers at all will result in not sleeping).
-\& \- Sleep if the I/O and timer collect interval say so.
-\& \- Block the process, waiting for any events.
-\& \- Queue all outstanding I/O (fd) events.
-\& \- Update the "event loop time" and do time jump handling.
-\& \- Queue all outstanding timers.
-\& \- Queue all outstanding periodics.
-\& \- If no events are pending now, queue all idle watchers.
-\& \- Queue all check watchers.
-\& \- Call all queued watchers in reverse order (i.e. check watchers first).
-\& Signals and child watchers are implemented as I/O watchers, and will
-\& be handled here by queueing them when their watcher gets executed.
-\& \- If ev_unloop has been called, or EVLOOP_ONESHOT or EVLOOP_NONBLOCK
-\& were used, or there are no active watchers, return, otherwise
-\& continue with step *.
-.Ve
-.Sp
-Example: Queue some jobs and then loop until no events are outstanding
-anymore.
-.Sp
-.Vb 4
-\& ... queue jobs here, make sure they register event watchers as long
-\& ... as they still have work to do (even an idle watcher will do..)
-\& ev_loop (my_loop, 0);
-\& ... jobs done. yeah!
-.Ve
-.IP "ev_unloop (loop, how)" 4
-.IX Item "ev_unloop (loop, how)"
-Can be used to make a call to \f(CW\*(C`ev_loop\*(C'\fR return early (but only after it
-has processed all outstanding events). The \f(CW\*(C`how\*(C'\fR argument must be either
-\&\f(CW\*(C`EVUNLOOP_ONE\*(C'\fR, which will make the innermost \f(CW\*(C`ev_loop\*(C'\fR call return, or
-\&\f(CW\*(C`EVUNLOOP_ALL\*(C'\fR, which will make all nested \f(CW\*(C`ev_loop\*(C'\fR calls return.
-.Sp
-This \*(L"unloop state\*(R" will be cleared when entering \f(CW\*(C`ev_loop\*(C'\fR again.
-.IP "ev_ref (loop)" 4
-.IX Item "ev_ref (loop)"
-.PD 0
-.IP "ev_unref (loop)" 4
-.IX Item "ev_unref (loop)"
-.PD
-Ref/unref can be used to add or remove a reference count on the event
-loop: Every watcher keeps one reference, and as long as the reference
-count is nonzero, \f(CW\*(C`ev_loop\*(C'\fR will not return on its own. If you have
-a watcher you never unregister that should not keep \f(CW\*(C`ev_loop\*(C'\fR from
-returning, \fIev_unref()\fR after starting, and \fIev_ref()\fR before stopping it. For
-example, libev itself uses this for its internal signal pipe: It is not
-visible to the libev user and should not keep \f(CW\*(C`ev_loop\*(C'\fR from exiting if
-no event watchers registered by it are active. It is also an excellent
-way to do this for generic recurring timers or from within third-party
-libraries. Just remember to \fIunref after start\fR and \fIref before stop\fR
-(but only if the watcher wasn't active before, or was active before,
-respectively).
-.Sp
-Example: Create a signal watcher, but keep it from keeping \f(CW\*(C`ev_loop\*(C'\fR
-running when nothing else is active.
-.Sp
-.Vb 4
-\& struct ev_signal exitsig;
-\& ev_signal_init (&exitsig, sig_cb, SIGINT);
-\& ev_signal_start (loop, &exitsig);
-\& evf_unref (loop);
-.Ve
-.Sp
-Example: For some weird reason, unregister the above signal handler again.
-.Sp
-.Vb 2
-\& ev_ref (loop);
-\& ev_signal_stop (loop, &exitsig);
-.Ve
-.IP "ev_set_io_collect_interval (loop, ev_tstamp interval)" 4
-.IX Item "ev_set_io_collect_interval (loop, ev_tstamp interval)"
-.PD 0
-.IP "ev_set_timeout_collect_interval (loop, ev_tstamp interval)" 4
-.IX Item "ev_set_timeout_collect_interval (loop, ev_tstamp interval)"
-.PD
-These advanced functions influence the time that libev will spend waiting
-for events. Both are by default \f(CW0\fR, meaning that libev will try to
-invoke timer/periodic callbacks and I/O callbacks with minimum latency.
-.Sp
-Setting these to a higher value (the \f(CW\*(C`interval\*(C'\fR \fImust\fR be >= \f(CW0\fR)
-allows libev to delay invocation of I/O and timer/periodic callbacks to
-increase efficiency of loop iterations.
-.Sp
-The background is that sometimes your program runs just fast enough to
-handle one (or very few) event(s) per loop iteration. While this makes
-the program responsive, it also wastes a lot of \s-1CPU\s0 time to poll for new
-events, especially with backends like \f(CW\*(C`select ()\*(C'\fR which have a high
-overhead for the actual polling but can deliver many events at once.
-.Sp
-By setting a higher \fIio collect interval\fR you allow libev to spend more
-time collecting I/O events, so you can handle more events per iteration,
-at the cost of increasing latency. Timeouts (both \f(CW\*(C`ev_periodic\*(C'\fR and
-\&\f(CW\*(C`ev_timer\*(C'\fR) will be not affected. Setting this to a non-null value will
-introduce an additional \f(CW\*(C`ev_sleep ()\*(C'\fR call into most loop iterations.
-.Sp
-Likewise, by setting a higher \fItimeout collect interval\fR you allow libev
-to spend more time collecting timeouts, at the expense of increased
-latency (the watcher callback will be called later). \f(CW\*(C`ev_io\*(C'\fR watchers
-will not be affected. Setting this to a non-null value will not introduce
-any overhead in libev.
-.Sp
-Many (busy) programs can usually benefit by setting the io collect
-interval to a value near \f(CW0.1\fR or so, which is often enough for
-interactive servers (of course not for games), likewise for timeouts. It
-usually doesn't make much sense to set it to a lower value than \f(CW0.01\fR,
-as this approsaches the timing granularity of most systems.
-.SH "ANATOMY OF A WATCHER"
-.IX Header "ANATOMY OF A WATCHER"
-A watcher is a structure that you create and register to record your
-interest in some event. For instance, if you want to wait for \s-1STDIN\s0 to
-become readable, you would create an \f(CW\*(C`ev_io\*(C'\fR watcher for that:
-.PP
-.Vb 5
-\& static void my_cb (struct ev_loop *loop, struct ev_io *w, int revents)
-\& {
-\& ev_io_stop (w);
-\& ev_unloop (loop, EVUNLOOP_ALL);
-\& }
-\&
-\& struct ev_loop *loop = ev_default_loop (0);
-\& struct ev_io stdin_watcher;
-\& ev_init (&stdin_watcher, my_cb);
-\& ev_io_set (&stdin_watcher, STDIN_FILENO, EV_READ);
-\& ev_io_start (loop, &stdin_watcher);
-\& ev_loop (loop, 0);
-.Ve
-.PP
-As you can see, you are responsible for allocating the memory for your
-watcher structures (and it is usually a bad idea to do this on the stack,
-although this can sometimes be quite valid).
-.PP
-Each watcher structure must be initialised by a call to \f(CW\*(C`ev_init
-(watcher *, callback)\*(C'\fR, which expects a callback to be provided. This
-callback gets invoked each time the event occurs (or, in the case of io
-watchers, each time the event loop detects that the file descriptor given
-is readable and/or writable).
-.PP
-Each watcher type has its own \f(CW\*(C`ev_<type>_set (watcher *, ...)\*(C'\fR macro
-with arguments specific to this watcher type. There is also a macro
-to combine initialisation and setting in one call: \f(CW\*(C`ev_<type>_init
-(watcher *, callback, ...)\*(C'\fR.
-.PP
-To make the watcher actually watch out for events, you have to start it
-with a watcher-specific start function (\f(CW\*(C`ev_<type>_start (loop, watcher
-*)\*(C'\fR), and you can stop watching for events at any time by calling the
-corresponding stop function (\f(CW\*(C`ev_<type>_stop (loop, watcher *)\*(C'\fR.
-.PP
-As long as your watcher is active (has been started but not stopped) you
-must not touch the values stored in it. Most specifically you must never
-reinitialise it or call its \f(CW\*(C`set\*(C'\fR macro.
-.PP
-Each and every callback receives the event loop pointer as first, the
-registered watcher structure as second, and a bitset of received events as
-third argument.
-.PP
-The received events usually include a single bit per event type received
-(you can receive multiple events at the same time). The possible bit masks
-are:
-.ie n .IP """EV_READ""" 4
-.el .IP "\f(CWEV_READ\fR" 4
-.IX Item "EV_READ"
-.PD 0
-.ie n .IP """EV_WRITE""" 4
-.el .IP "\f(CWEV_WRITE\fR" 4
-.IX Item "EV_WRITE"
-.PD
-The file descriptor in the \f(CW\*(C`ev_io\*(C'\fR watcher has become readable and/or
-writable.
-.ie n .IP """EV_TIMEOUT""" 4
-.el .IP "\f(CWEV_TIMEOUT\fR" 4
-.IX Item "EV_TIMEOUT"
-The \f(CW\*(C`ev_timer\*(C'\fR watcher has timed out.
-.ie n .IP """EV_PERIODIC""" 4
-.el .IP "\f(CWEV_PERIODIC\fR" 4
-.IX Item "EV_PERIODIC"
-The \f(CW\*(C`ev_periodic\*(C'\fR watcher has timed out.
-.ie n .IP """EV_SIGNAL""" 4
-.el .IP "\f(CWEV_SIGNAL\fR" 4
-.IX Item "EV_SIGNAL"
-The signal specified in the \f(CW\*(C`ev_signal\*(C'\fR watcher has been received by a thread.
-.ie n .IP """EV_CHILD""" 4
-.el .IP "\f(CWEV_CHILD\fR" 4
-.IX Item "EV_CHILD"
-The pid specified in the \f(CW\*(C`ev_child\*(C'\fR watcher has received a status change.
-.ie n .IP """EV_STAT""" 4
-.el .IP "\f(CWEV_STAT\fR" 4
-.IX Item "EV_STAT"
-The path specified in the \f(CW\*(C`ev_stat\*(C'\fR watcher changed its attributes somehow.
-.ie n .IP """EV_IDLE""" 4
-.el .IP "\f(CWEV_IDLE\fR" 4
-.IX Item "EV_IDLE"
-The \f(CW\*(C`ev_idle\*(C'\fR watcher has determined that you have nothing better to do.
-.ie n .IP """EV_PREPARE""" 4
-.el .IP "\f(CWEV_PREPARE\fR" 4
-.IX Item "EV_PREPARE"
-.PD 0
-.ie n .IP """EV_CHECK""" 4
-.el .IP "\f(CWEV_CHECK\fR" 4
-.IX Item "EV_CHECK"
-.PD
-All \f(CW\*(C`ev_prepare\*(C'\fR watchers are invoked just \fIbefore\fR \f(CW\*(C`ev_loop\*(C'\fR starts
-to gather new events, and all \f(CW\*(C`ev_check\*(C'\fR watchers are invoked just after
-\&\f(CW\*(C`ev_loop\*(C'\fR has gathered them, but before it invokes any callbacks for any
-received events. Callbacks of both watcher types can start and stop as
-many watchers as they want, and all of them will be taken into account
-(for example, a \f(CW\*(C`ev_prepare\*(C'\fR watcher might start an idle watcher to keep
-\&\f(CW\*(C`ev_loop\*(C'\fR from blocking).
-.ie n .IP """EV_EMBED""" 4
-.el .IP "\f(CWEV_EMBED\fR" 4
-.IX Item "EV_EMBED"
-The embedded event loop specified in the \f(CW\*(C`ev_embed\*(C'\fR watcher needs attention.
-.ie n .IP """EV_FORK""" 4
-.el .IP "\f(CWEV_FORK\fR" 4
-.IX Item "EV_FORK"
-The event loop has been resumed in the child process after fork (see
-\&\f(CW\*(C`ev_fork\*(C'\fR).
-.ie n .IP """EV_ASYNC""" 4
-.el .IP "\f(CWEV_ASYNC\fR" 4
-.IX Item "EV_ASYNC"
-The given async watcher has been asynchronously notified (see \f(CW\*(C`ev_async\*(C'\fR).
-.ie n .IP """EV_ERROR""" 4
-.el .IP "\f(CWEV_ERROR\fR" 4
-.IX Item "EV_ERROR"
-An unspecified error has occured, the watcher has been stopped. This might
-happen because the watcher could not be properly started because libev
-ran out of memory, a file descriptor was found to be closed or any other
-problem. You best act on it by reporting the problem and somehow coping
-with the watcher being stopped.
-.Sp
-Libev will usually signal a few \*(L"dummy\*(R" events together with an error,
-for example it might indicate that a fd is readable or writable, and if
-your callbacks is well-written it can just attempt the operation and cope
-with the error from \fIread()\fR or \fIwrite()\fR. This will not work in multithreaded
-programs, though, so beware.
-.Sh "\s-1GENERIC\s0 \s-1WATCHER\s0 \s-1FUNCTIONS\s0"
-.IX Subsection "GENERIC WATCHER FUNCTIONS"
-In the following description, \f(CW\*(C`TYPE\*(C'\fR stands for the watcher type,
-e.g. \f(CW\*(C`timer\*(C'\fR for \f(CW\*(C`ev_timer\*(C'\fR watchers and \f(CW\*(C`io\*(C'\fR for \f(CW\*(C`ev_io\*(C'\fR watchers.
-.ie n .IP """ev_init"" (ev_TYPE *watcher, callback)" 4
-.el .IP "\f(CWev_init\fR (ev_TYPE *watcher, callback)" 4
-.IX Item "ev_init (ev_TYPE *watcher, callback)"
-This macro initialises the generic portion of a watcher. The contents
-of the watcher object can be arbitrary (so \f(CW\*(C`malloc\*(C'\fR will do). Only
-the generic parts of the watcher are initialised, you \fIneed\fR to call
-the type-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR macro afterwards to initialise the
-type-specific parts. For each type there is also a \f(CW\*(C`ev_TYPE_init\*(C'\fR macro
-which rolls both calls into one.
-.Sp
-You can reinitialise a watcher at any time as long as it has been stopped
-(or never started) and there are no pending events outstanding.
-.Sp
-The callback is always of type \f(CW\*(C`void (*)(ev_loop *loop, ev_TYPE *watcher,
-int revents)\*(C'\fR.
-.ie n .IP """ev_TYPE_set"" (ev_TYPE *, [args])" 4
-.el .IP "\f(CWev_TYPE_set\fR (ev_TYPE *, [args])" 4
-.IX Item "ev_TYPE_set (ev_TYPE *, [args])"
-This macro initialises the type-specific parts of a watcher. You need to
-call \f(CW\*(C`ev_init\*(C'\fR at least once before you call this macro, but you can
-call \f(CW\*(C`ev_TYPE_set\*(C'\fR any number of times. You must not, however, call this
-macro on a watcher that is active (it can be pending, however, which is a
-difference to the \f(CW\*(C`ev_init\*(C'\fR macro).
-.Sp
-Although some watcher types do not have type-specific arguments
-(e.g. \f(CW\*(C`ev_prepare\*(C'\fR) you still need to call its \f(CW\*(C`set\*(C'\fR macro.
-.ie n .IP """ev_TYPE_init"" (ev_TYPE *watcher, callback, [args])" 4
-.el .IP "\f(CWev_TYPE_init\fR (ev_TYPE *watcher, callback, [args])" 4
-.IX Item "ev_TYPE_init (ev_TYPE *watcher, callback, [args])"
-This convinience macro rolls both \f(CW\*(C`ev_init\*(C'\fR and \f(CW\*(C`ev_TYPE_set\*(C'\fR macro
-calls into a single call. This is the most convinient method to initialise
-a watcher. The same limitations apply, of course.
-.ie n .IP """ev_TYPE_start"" (loop *, ev_TYPE *watcher)" 4
-.el .IP "\f(CWev_TYPE_start\fR (loop *, ev_TYPE *watcher)" 4
-.IX Item "ev_TYPE_start (loop *, ev_TYPE *watcher)"
-Starts (activates) the given watcher. Only active watchers will receive
-events. If the watcher is already active nothing will happen.
-.ie n .IP """ev_TYPE_stop"" (loop *, ev_TYPE *watcher)" 4
-.el .IP "\f(CWev_TYPE_stop\fR (loop *, ev_TYPE *watcher)" 4
-.IX Item "ev_TYPE_stop (loop *, ev_TYPE *watcher)"
-Stops the given watcher again (if active) and clears the pending
-status. It is possible that stopped watchers are pending (for example,
-non-repeating timers are being stopped when they become pending), but
-\&\f(CW\*(C`ev_TYPE_stop\*(C'\fR ensures that the watcher is neither active nor pending. If
-you want to free or reuse the memory used by the watcher it is therefore a
-good idea to always call its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function.
-.IP "bool ev_is_active (ev_TYPE *watcher)" 4
-.IX Item "bool ev_is_active (ev_TYPE *watcher)"
-Returns a true value iff the watcher is active (i.e. it has been started
-and not yet been stopped). As long as a watcher is active you must not modify
-it.
-.IP "bool ev_is_pending (ev_TYPE *watcher)" 4
-.IX Item "bool ev_is_pending (ev_TYPE *watcher)"
-Returns a true value iff the watcher is pending, (i.e. it has outstanding
-events but its callback has not yet been invoked). As long as a watcher
-is pending (but not active) you must not call an init function on it (but
-\&\f(CW\*(C`ev_TYPE_set\*(C'\fR is safe), you must not change its priority, and you must
-make sure the watcher is available to libev (e.g. you cannot \f(CW\*(C`free ()\*(C'\fR
-it).
-.IP "callback ev_cb (ev_TYPE *watcher)" 4
-.IX Item "callback ev_cb (ev_TYPE *watcher)"
-Returns the callback currently set on the watcher.
-.IP "ev_cb_set (ev_TYPE *watcher, callback)" 4
-.IX Item "ev_cb_set (ev_TYPE *watcher, callback)"
-Change the callback. You can change the callback at virtually any time
-(modulo threads).
-.IP "ev_set_priority (ev_TYPE *watcher, priority)" 4
-.IX Item "ev_set_priority (ev_TYPE *watcher, priority)"
-.PD 0
-.IP "int ev_priority (ev_TYPE *watcher)" 4
-.IX Item "int ev_priority (ev_TYPE *watcher)"
-.PD
-Set and query the priority of the watcher. The priority is a small
-integer between \f(CW\*(C`EV_MAXPRI\*(C'\fR (default: \f(CW2\fR) and \f(CW\*(C`EV_MINPRI\*(C'\fR
-(default: \f(CW\*(C`\-2\*(C'\fR). Pending watchers with higher priority will be invoked
-before watchers with lower priority, but priority will not keep watchers
-from being executed (except for \f(CW\*(C`ev_idle\*(C'\fR watchers).
-.Sp
-This means that priorities are \fIonly\fR used for ordering callback
-invocation after new events have been received. This is useful, for
-example, to reduce latency after idling, or more often, to bind two
-watchers on the same event and make sure one is called first.
-.Sp
-If you need to suppress invocation when higher priority events are pending
-you need to look at \f(CW\*(C`ev_idle\*(C'\fR watchers, which provide this functionality.
-.Sp
-You \fImust not\fR change the priority of a watcher as long as it is active or
-pending.
-.Sp
-The default priority used by watchers when no priority has been set is
-always \f(CW0\fR, which is supposed to not be too high and not be too low :).
-.Sp
-Setting a priority outside the range of \f(CW\*(C`EV_MINPRI\*(C'\fR to \f(CW\*(C`EV_MAXPRI\*(C'\fR is
-fine, as long as you do not mind that the priority value you query might
-or might not have been adjusted to be within valid range.
-.IP "ev_invoke (loop, ev_TYPE *watcher, int revents)" 4
-.IX Item "ev_invoke (loop, ev_TYPE *watcher, int revents)"
-Invoke the \f(CW\*(C`watcher\*(C'\fR with the given \f(CW\*(C`loop\*(C'\fR and \f(CW\*(C`revents\*(C'\fR. Neither
-\&\f(CW\*(C`loop\*(C'\fR nor \f(CW\*(C`revents\*(C'\fR need to be valid as long as the watcher callback
-can deal with that fact.
-.IP "int ev_clear_pending (loop, ev_TYPE *watcher)" 4
-.IX Item "int ev_clear_pending (loop, ev_TYPE *watcher)"
-If the watcher is pending, this function returns clears its pending status
-and returns its \f(CW\*(C`revents\*(C'\fR bitset (as if its callback was invoked). If the
-watcher isn't pending it does nothing and returns \f(CW0\fR.
-.Sh "\s-1ASSOCIATING\s0 \s-1CUSTOM\s0 \s-1DATA\s0 \s-1WITH\s0 A \s-1WATCHER\s0"
-.IX Subsection "ASSOCIATING CUSTOM DATA WITH A WATCHER"
-Each watcher has, by default, a member \f(CW\*(C`void *data\*(C'\fR that you can change
-and read at any time, libev will completely ignore it. This can be used
-to associate arbitrary data with your watcher. If you need more data and
-don't want to allocate memory and store a pointer to it in that data
-member, you can also \*(L"subclass\*(R" the watcher type and provide your own
-data:
-.PP
-.Vb 7
-\& struct my_io
-\& {
-\& struct ev_io io;
-\& int otherfd;
-\& void *somedata;
-\& struct whatever *mostinteresting;
-\& }
-.Ve
-.PP
-And since your callback will be called with a pointer to the watcher, you
-can cast it back to your own type:
-.PP
-.Vb 5
-\& static void my_cb (struct ev_loop *loop, struct ev_io *w_, int revents)
-\& {
-\& struct my_io *w = (struct my_io *)w_;
-\& ...
-\& }
-.Ve
-.PP
-More interesting and less C\-conformant ways of casting your callback type
-instead have been omitted.
-.PP
-Another common scenario is having some data structure with multiple
-watchers:
-.PP
-.Vb 6
-\& struct my_biggy
-\& {
-\& int some_data;
-\& ev_timer t1;
-\& ev_timer t2;
-\& }
-.Ve
-.PP
-In this case getting the pointer to \f(CW\*(C`my_biggy\*(C'\fR is a bit more complicated,
-you need to use \f(CW\*(C`offsetof\*(C'\fR:
-.PP
-.Vb 1
-\& #include <stddef.h>
-\&
-\& static void
-\& t1_cb (EV_P_ struct ev_timer *w, int revents)
-\& {
-\& struct my_biggy big = (struct my_biggy *
-\& (((char *)w) \- offsetof (struct my_biggy, t1));
-\& }
-\&
-\& static void
-\& t2_cb (EV_P_ struct ev_timer *w, int revents)
-\& {
-\& struct my_biggy big = (struct my_biggy *
-\& (((char *)w) \- offsetof (struct my_biggy, t2));
-\& }
-.Ve
-.SH "WATCHER TYPES"
-.IX Header "WATCHER TYPES"
-This section describes each watcher in detail, but will not repeat
-information given in the last section. Any initialisation/set macros,
-functions and members specific to the watcher type are explained.
-.PP
-Members are additionally marked with either \fI[read\-only]\fR, meaning that,
-while the watcher is active, you can look at the member and expect some
-sensible content, but you must not modify it (you can modify it while the
-watcher is stopped to your hearts content), or \fI[read\-write]\fR, which
-means you can expect it to have some sensible content while the watcher
-is active, but you can also modify it. Modifying it may not do something
-sensible or take immediate effect (or do anything at all), but libev will
-not crash or malfunction in any way.
-.ie n .Sh """ev_io"" \- is this file descriptor readable or writable?"
-.el .Sh "\f(CWev_io\fP \- is this file descriptor readable or writable?"
-.IX Subsection "ev_io - is this file descriptor readable or writable?"
-I/O watchers check whether a file descriptor is readable or writable
-in each iteration of the event loop, or, more precisely, when reading
-would not block the process and writing would at least be able to write
-some data. This behaviour is called level-triggering because you keep
-receiving events as long as the condition persists. Remember you can stop
-the watcher if you don't want to act on the event and neither want to
-receive future events.
-.PP
-In general you can register as many read and/or write event watchers per
-fd as you want (as long as you don't confuse yourself). Setting all file
-descriptors to non-blocking mode is also usually a good idea (but not
-required if you know what you are doing).
-.PP
-If you must do this, then force the use of a known-to-be-good backend
-(at the time of this writing, this includes only \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR and
-\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR).
-.PP
-Another thing you have to watch out for is that it is quite easy to
-receive \*(L"spurious\*(R" readyness notifications, that is your callback might
-be called with \f(CW\*(C`EV_READ\*(C'\fR but a subsequent \f(CW\*(C`read\*(C'\fR(2) will actually block
-because there is no data. Not only are some backends known to create a
-lot of those (for example solaris ports), it is very easy to get into
-this situation even with a relatively standard program structure. Thus
-it is best to always use non-blocking I/O: An extra \f(CW\*(C`read\*(C'\fR(2) returning
-\&\f(CW\*(C`EAGAIN\*(C'\fR is far preferable to a program hanging until some data arrives.
-.PP
-If you cannot run the fd in non-blocking mode (for example you should not
-play around with an Xlib connection), then you have to seperately re-test
-whether a file descriptor is really ready with a known-to-be good interface
-such as poll (fortunately in our Xlib example, Xlib already does this on
-its own, so its quite safe to use).
-.PP
-\fIThe special problem of disappearing file descriptors\fR
-.IX Subsection "The special problem of disappearing file descriptors"
-.PP
-Some backends (e.g. kqueue, epoll) need to be told about closing a file
-descriptor (either by calling \f(CW\*(C`close\*(C'\fR explicitly or by any other means,
-such as \f(CW\*(C`dup\*(C'\fR). The reason is that you register interest in some file
-descriptor, but when it goes away, the operating system will silently drop
-this interest. If another file descriptor with the same number then is
-registered with libev, there is no efficient way to see that this is, in
-fact, a different file descriptor.
-.PP
-To avoid having to explicitly tell libev about such cases, libev follows
-the following policy: Each time \f(CW\*(C`ev_io_set\*(C'\fR is being called, libev
-will assume that this is potentially a new file descriptor, otherwise
-it is assumed that the file descriptor stays the same. That means that
-you \fIhave\fR to call \f(CW\*(C`ev_io_set\*(C'\fR (or \f(CW\*(C`ev_io_init\*(C'\fR) when you change the
-descriptor even if the file descriptor number itself did not change.
-.PP
-This is how one would do it normally anyway, the important point is that
-the libev application should not optimise around libev but should leave
-optimisations to libev.
-.PP
-\fIThe special problem of dup'ed file descriptors\fR
-.IX Subsection "The special problem of dup'ed file descriptors"
-.PP
-Some backends (e.g. epoll), cannot register events for file descriptors,
-but only events for the underlying file descriptions. That means when you
-have \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors or weirder constellations, and register
-events for them, only one file descriptor might actually receive events.
-.PP
-There is no workaround possible except not registering events
-for potentially \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors, or to resort to
-\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.PP
-\fIThe special problem of fork\fR
-.IX Subsection "The special problem of fork"
-.PP
-Some backends (epoll, kqueue) do not support \f(CW\*(C`fork ()\*(C'\fR at all or exhibit
-useless behaviour. Libev fully supports fork, but needs to be told about
-it in the child.
-.PP
-To support fork in your programs, you either have to call
-\&\f(CW\*(C`ev_default_fork ()\*(C'\fR or \f(CW\*(C`ev_loop_fork ()\*(C'\fR after a fork in the child,
-enable \f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR, or resort to \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or
-\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.PP
-\fIThe special problem of \s-1SIGPIPE\s0\fR
-.IX Subsection "The special problem of SIGPIPE"
-.PP
-While not really specific to libev, it is easy to forget about \s-1SIGPIPE:\s0
-when reading from a pipe whose other end has been closed, your program
-gets send a \s-1SIGPIPE\s0, which, by default, aborts your program. For most
-programs this is sensible behaviour, for daemons, this is usually
-undesirable.
-.PP
-So when you encounter spurious, unexplained daemon exits, make sure you
-ignore \s-1SIGPIPE\s0 (and maybe make sure you log the exit status of your daemon
-somewhere, as that would have given you a big clue).
-.PP
-\fIWatcher-Specific Functions\fR
-.IX Subsection "Watcher-Specific Functions"
-.IP "ev_io_init (ev_io *, callback, int fd, int events)" 4
-.IX Item "ev_io_init (ev_io *, callback, int fd, int events)"
-.PD 0
-.IP "ev_io_set (ev_io *, int fd, int events)" 4
-.IX Item "ev_io_set (ev_io *, int fd, int events)"
-.PD
-Configures an \f(CW\*(C`ev_io\*(C'\fR watcher. The \f(CW\*(C`fd\*(C'\fR is the file descriptor to
-rceeive events for and events is either \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or
-\&\f(CW\*(C`EV_READ | EV_WRITE\*(C'\fR to receive the given events.
-.IP "int fd [read\-only]" 4
-.IX Item "int fd [read-only]"
-The file descriptor being watched.
-.IP "int events [read\-only]" 4
-.IX Item "int events [read-only]"
-The events being watched.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Call \f(CW\*(C`stdin_readable_cb\*(C'\fR when \s-1STDIN_FILENO\s0 has become, well
-readable, but only once. Since it is likely line-buffered, you could
-attempt to read a whole line in the callback.
-.PP
-.Vb 6
-\& static void
-\& stdin_readable_cb (struct ev_loop *loop, struct ev_io *w, int revents)
-\& {
-\& ev_io_stop (loop, w);
-\& .. read from stdin here (or from w\->fd) and haqndle any I/O errors
-\& }
-\&
-\& ...
-\& struct ev_loop *loop = ev_default_init (0);
-\& struct ev_io stdin_readable;
-\& ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ);
-\& ev_io_start (loop, &stdin_readable);
-\& ev_loop (loop, 0);
-.Ve
-.ie n .Sh """ev_timer"" \- relative and optionally repeating timeouts"
-.el .Sh "\f(CWev_timer\fP \- relative and optionally repeating timeouts"
-.IX Subsection "ev_timer - relative and optionally repeating timeouts"
-Timer watchers are simple relative timers that generate an event after a
-given time, and optionally repeating in regular intervals after that.
-.PP
-The timers are based on real time, that is, if you register an event that
-times out after an hour and you reset your system clock to last years
-time, it will still time out after (roughly) and hour. \*(L"Roughly\*(R" because
-detecting time jumps is hard, and some inaccuracies are unavoidable (the
-monotonic clock option helps a lot here).
-.PP
-The relative timeouts are calculated relative to the \f(CW\*(C`ev_now ()\*(C'\fR
-time. This is usually the right thing as this timestamp refers to the time
-of the event triggering whatever timeout you are modifying/starting. If
-you suspect event processing to be delayed and you \fIneed\fR to base the timeout
-on the current time, use something like this to adjust for this:
-.PP
-.Vb 1
-\& ev_timer_set (&timer, after + ev_now () \- ev_time (), 0.);
-.Ve
-.PP
-The callback is guarenteed to be invoked only when its timeout has passed,
-but if multiple timers become ready during the same loop iteration then
-order of execution is undefined.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" 4
-.IX Item "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)"
-.PD 0
-.IP "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" 4
-.IX Item "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)"
-.PD
-Configure the timer to trigger after \f(CW\*(C`after\*(C'\fR seconds. If \f(CW\*(C`repeat\*(C'\fR is
-\&\f(CW0.\fR, then it will automatically be stopped. If it is positive, then the
-timer will automatically be configured to trigger again \f(CW\*(C`repeat\*(C'\fR seconds
-later, again, and again, until stopped manually.
-.Sp
-The timer itself will do a best-effort at avoiding drift, that is, if you
-configure a timer to trigger every 10 seconds, then it will trigger at
-exactly 10 second intervals. If, however, your program cannot keep up with
-the timer (because it takes longer than those 10 seconds to do stuff) the
-timer will not fire more than once per event loop iteration.
-.IP "ev_timer_again (loop, ev_timer *)" 4
-.IX Item "ev_timer_again (loop, ev_timer *)"
-This will act as if the timer timed out and restart it again if it is
-repeating. The exact semantics are:
-.Sp
-If the timer is pending, its pending status is cleared.
-.Sp
-If the timer is started but nonrepeating, stop it (as if it timed out).
-.Sp
-If the timer is repeating, either start it if necessary (with the
-\&\f(CW\*(C`repeat\*(C'\fR value), or reset the running timer to the \f(CW\*(C`repeat\*(C'\fR value.
-.Sp
-This sounds a bit complicated, but here is a useful and typical
-example: Imagine you have a tcp connection and you want a so-called idle
-timeout, that is, you want to be called when there have been, say, 60
-seconds of inactivity on the socket. The easiest way to do this is to
-configure an \f(CW\*(C`ev_timer\*(C'\fR with a \f(CW\*(C`repeat\*(C'\fR value of \f(CW60\fR and then call
-\&\f(CW\*(C`ev_timer_again\*(C'\fR each time you successfully read or write some data. If
-you go into an idle state where you do not expect data to travel on the
-socket, you can \f(CW\*(C`ev_timer_stop\*(C'\fR the timer, and \f(CW\*(C`ev_timer_again\*(C'\fR will
-automatically restart it if need be.
-.Sp
-That means you can ignore the \f(CW\*(C`after\*(C'\fR value and \f(CW\*(C`ev_timer_start\*(C'\fR
-altogether and only ever use the \f(CW\*(C`repeat\*(C'\fR value and \f(CW\*(C`ev_timer_again\*(C'\fR:
-.Sp
-.Vb 8
-\& ev_timer_init (timer, callback, 0., 5.);
-\& ev_timer_again (loop, timer);
-\& ...
-\& timer\->again = 17.;
-\& ev_timer_again (loop, timer);
-\& ...
-\& timer\->again = 10.;
-\& ev_timer_again (loop, timer);
-.Ve
-.Sp
-This is more slightly efficient then stopping/starting the timer each time
-you want to modify its timeout value.
-.IP "ev_tstamp repeat [read\-write]" 4
-.IX Item "ev_tstamp repeat [read-write]"
-The current \f(CW\*(C`repeat\*(C'\fR value. Will be used each time the watcher times out
-or \f(CW\*(C`ev_timer_again\*(C'\fR is called and determines the next timeout (if any),
-which is also when any modifications are taken into account.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Create a timer that fires after 60 seconds.
-.PP
-.Vb 5
-\& static void
-\& one_minute_cb (struct ev_loop *loop, struct ev_timer *w, int revents)
-\& {
-\& .. one minute over, w is actually stopped right here
-\& }
-\&
-\& struct ev_timer mytimer;
-\& ev_timer_init (&mytimer, one_minute_cb, 60., 0.);
-\& ev_timer_start (loop, &mytimer);
-.Ve
-.PP
-Example: Create a timeout timer that times out after 10 seconds of
-inactivity.
-.PP
-.Vb 5
-\& static void
-\& timeout_cb (struct ev_loop *loop, struct ev_timer *w, int revents)
-\& {
-\& .. ten seconds without any activity
-\& }
-\&
-\& struct ev_timer mytimer;
-\& ev_timer_init (&mytimer, timeout_cb, 0., 10.); /* note, only repeat used */
-\& ev_timer_again (&mytimer); /* start timer */
-\& ev_loop (loop, 0);
-\&
-\& // and in some piece of code that gets executed on any "activity":
-\& // reset the timeout to start ticking again at 10 seconds
-\& ev_timer_again (&mytimer);
-.Ve
-.ie n .Sh """ev_periodic"" \- to cron or not to cron?"
-.el .Sh "\f(CWev_periodic\fP \- to cron or not to cron?"
-.IX Subsection "ev_periodic - to cron or not to cron?"
-Periodic watchers are also timers of a kind, but they are very versatile
-(and unfortunately a bit complex).
-.PP
-Unlike \f(CW\*(C`ev_timer\*(C'\fR's, they are not based on real time (or relative time)
-but on wallclock time (absolute time). You can tell a periodic watcher
-to trigger \*(L"at\*(R" some specific point in time. For example, if you tell a
-periodic watcher to trigger in 10 seconds (by specifiying e.g. \f(CW\*(C`ev_now ()
-+ 10.\*(C'\fR) and then reset your system clock to the last year, then it will
-take a year to trigger the event (unlike an \f(CW\*(C`ev_timer\*(C'\fR, which would trigger
-roughly 10 seconds later).
-.PP
-They can also be used to implement vastly more complex timers, such as
-triggering an event on each midnight, local time or other, complicated,
-rules.
-.PP
-As with timers, the callback is guarenteed to be invoked only when the
-time (\f(CW\*(C`at\*(C'\fR) has been passed, but if multiple periodic timers become ready
-during the same loop iteration then order of execution is undefined.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_periodic_init (ev_periodic *, callback, ev_tstamp at, ev_tstamp interval, reschedule_cb)" 4
-.IX Item "ev_periodic_init (ev_periodic *, callback, ev_tstamp at, ev_tstamp interval, reschedule_cb)"
-.PD 0
-.IP "ev_periodic_set (ev_periodic *, ev_tstamp after, ev_tstamp repeat, reschedule_cb)" 4
-.IX Item "ev_periodic_set (ev_periodic *, ev_tstamp after, ev_tstamp repeat, reschedule_cb)"
-.PD
-Lots of arguments, lets sort it out... There are basically three modes of
-operation, and we will explain them from simplest to complex:
-.RS 4
-.IP "\(bu" 4
-absolute timer (at = time, interval = reschedule_cb = 0)
-.Sp
-In this configuration the watcher triggers an event at the wallclock time
-\&\f(CW\*(C`at\*(C'\fR and doesn't repeat. It will not adjust when a time jump occurs,
-that is, if it is to be run at January 1st 2011 then it will run when the
-system time reaches or surpasses this time.
-.IP "\(bu" 4
-repeating interval timer (at = offset, interval > 0, reschedule_cb = 0)
-.Sp
-In this mode the watcher will always be scheduled to time out at the next
-\&\f(CW\*(C`at + N * interval\*(C'\fR time (for some integer N, which can also be negative)
-and then repeat, regardless of any time jumps.
-.Sp
-This can be used to create timers that do not drift with respect to system
-time:
-.Sp
-.Vb 1
-\& ev_periodic_set (&periodic, 0., 3600., 0);
-.Ve
-.Sp
-This doesn't mean there will always be 3600 seconds in between triggers,
-but only that the the callback will be called when the system time shows a
-full hour (\s-1UTC\s0), or more correctly, when the system time is evenly divisible
-by 3600.
-.Sp
-Another way to think about it (for the mathematically inclined) is that
-\&\f(CW\*(C`ev_periodic\*(C'\fR will try to run the callback in this mode at the next possible
-time where \f(CW\*(C`time = at (mod interval)\*(C'\fR, regardless of any time jumps.
-.Sp
-For numerical stability it is preferable that the \f(CW\*(C`at\*(C'\fR value is near
-\&\f(CW\*(C`ev_now ()\*(C'\fR (the current time), but there is no range requirement for
-this value.
-.IP "\(bu" 4
-manual reschedule mode (at and interval ignored, reschedule_cb = callback)
-.Sp
-In this mode the values for \f(CW\*(C`interval\*(C'\fR and \f(CW\*(C`at\*(C'\fR are both being
-ignored. Instead, each time the periodic watcher gets scheduled, the
-reschedule callback will be called with the watcher as first, and the
-current time as second argument.
-.Sp
-\&\s-1NOTE:\s0 \fIThis callback \s-1MUST\s0 \s-1NOT\s0 stop or destroy any periodic watcher,
-ever, or make any event loop modifications\fR. If you need to stop it,
-return \f(CW\*(C`now + 1e30\*(C'\fR (or so, fudge fudge) and stop it afterwards (e.g. by
-starting an \f(CW\*(C`ev_prepare\*(C'\fR watcher, which is legal).
-.Sp
-Its prototype is \f(CW\*(C`ev_tstamp (*reschedule_cb)(struct ev_periodic *w,
-ev_tstamp now)\*(C'\fR, e.g.:
-.Sp
-.Vb 4
-\& static ev_tstamp my_rescheduler (struct ev_periodic *w, ev_tstamp now)
-\& {
-\& return now + 60.;
-\& }
-.Ve
-.Sp
-It must return the next time to trigger, based on the passed time value
-(that is, the lowest time value larger than to the second argument). It
-will usually be called just before the callback will be triggered, but
-might be called at other times, too.
-.Sp
-\&\s-1NOTE:\s0 \fIThis callback must always return a time that is later than the
-passed \f(CI\*(C`now\*(C'\fI value\fR. Not even \f(CW\*(C`now\*(C'\fR itself will do, it \fImust\fR be larger.
-.Sp
-This can be used to create very complex timers, such as a timer that
-triggers on each midnight, local time. To do this, you would calculate the
-next midnight after \f(CW\*(C`now\*(C'\fR and return the timestamp value for this. How
-you do this is, again, up to you (but it is not trivial, which is the main
-reason I omitted it as an example).
-.RE
-.RS 4
-.RE
-.IP "ev_periodic_again (loop, ev_periodic *)" 4
-.IX Item "ev_periodic_again (loop, ev_periodic *)"
-Simply stops and restarts the periodic watcher again. This is only useful
-when you changed some parameters or the reschedule callback would return
-a different time than the last time it was called (e.g. in a crond like
-program when the crontabs have changed).
-.IP "ev_tstamp ev_periodic_at (ev_periodic *)" 4
-.IX Item "ev_tstamp ev_periodic_at (ev_periodic *)"
-When active, returns the absolute time that the watcher is supposed to
-trigger next.
-.IP "ev_tstamp offset [read\-write]" 4
-.IX Item "ev_tstamp offset [read-write]"
-When repeating, this contains the offset value, otherwise this is the
-absolute point in time (the \f(CW\*(C`at\*(C'\fR value passed to \f(CW\*(C`ev_periodic_set\*(C'\fR).
-.Sp
-Can be modified any time, but changes only take effect when the periodic
-timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called.
-.IP "ev_tstamp interval [read\-write]" 4
-.IX Item "ev_tstamp interval [read-write]"
-The current interval value. Can be modified any time, but changes only
-take effect when the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being
-called.
-.IP "ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) [read\-write]" 4
-.IX Item "ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) [read-write]"
-The current reschedule callback, or \f(CW0\fR, if this functionality is
-switched off. Can be changed any time, but changes only take effect when
-the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Call a callback every hour, or, more precisely, whenever the
-system clock is divisible by 3600. The callback invocation times have
-potentially a lot of jittering, but good long-term stability.
-.PP
-.Vb 5
-\& static void
-\& clock_cb (struct ev_loop *loop, struct ev_io *w, int revents)
-\& {
-\& ... its now a full hour (UTC, or TAI or whatever your clock follows)
-\& }
-\&
-\& struct ev_periodic hourly_tick;
-\& ev_periodic_init (&hourly_tick, clock_cb, 0., 3600., 0);
-\& ev_periodic_start (loop, &hourly_tick);
-.Ve
-.PP
-Example: The same as above, but use a reschedule callback to do it:
-.PP
-.Vb 1
-\& #include <math.h>
-\&
-\& static ev_tstamp
-\& my_scheduler_cb (struct ev_periodic *w, ev_tstamp now)
-\& {
-\& return fmod (now, 3600.) + 3600.;
-\& }
-\&
-\& ev_periodic_init (&hourly_tick, clock_cb, 0., 0., my_scheduler_cb);
-.Ve
-.PP
-Example: Call a callback every hour, starting now:
-.PP
-.Vb 4
-\& struct ev_periodic hourly_tick;
-\& ev_periodic_init (&hourly_tick, clock_cb,
-\& fmod (ev_now (loop), 3600.), 3600., 0);
-\& ev_periodic_start (loop, &hourly_tick);
-.Ve
-.ie n .Sh """ev_signal"" \- signal me when a signal gets signalled!"
-.el .Sh "\f(CWev_signal\fP \- signal me when a signal gets signalled!"
-.IX Subsection "ev_signal - signal me when a signal gets signalled!"
-Signal watchers will trigger an event when the process receives a specific
-signal one or more times. Even though signals are very asynchronous, libev
-will try it's best to deliver signals synchronously, i.e. as part of the
-normal event processing, like any other event.
-.PP
-You can configure as many watchers as you like per signal. Only when the
-first watcher gets started will libev actually register a signal watcher
-with the kernel (thus it coexists with your own signal handlers as long
-as you don't register any with libev). Similarly, when the last signal
-watcher for a signal is stopped libev will reset the signal handler to
-\&\s-1SIG_DFL\s0 (regardless of what it was set to before).
-.PP
-If possible and supported, libev will install its handlers with
-\&\f(CW\*(C`SA_RESTART\*(C'\fR behaviour enabled, so syscalls should not be unduly
-interrupted. If you have a problem with syscalls getting interrupted by
-signals you can block all signals in an \f(CW\*(C`ev_check\*(C'\fR watcher and unblock
-them in an \f(CW\*(C`ev_prepare\*(C'\fR watcher.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_signal_init (ev_signal *, callback, int signum)" 4
-.IX Item "ev_signal_init (ev_signal *, callback, int signum)"
-.PD 0
-.IP "ev_signal_set (ev_signal *, int signum)" 4
-.IX Item "ev_signal_set (ev_signal *, int signum)"
-.PD
-Configures the watcher to trigger on the given signal number (usually one
-of the \f(CW\*(C`SIGxxx\*(C'\fR constants).
-.IP "int signum [read\-only]" 4
-.IX Item "int signum [read-only]"
-The signal the watcher watches out for.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Try to exit cleanly on \s-1SIGINT\s0 and \s-1SIGTERM\s0.
-.PP
-.Vb 5
-\& static void
-\& sigint_cb (struct ev_loop *loop, struct ev_signal *w, int revents)
-\& {
-\& ev_unloop (loop, EVUNLOOP_ALL);
-\& }
-\&
-\& struct ev_signal signal_watcher;
-\& ev_signal_init (&signal_watcher, sigint_cb, SIGINT);
-\& ev_signal_start (loop, &sigint_cb);
-.Ve
-.ie n .Sh """ev_child"" \- watch out for process status changes"
-.el .Sh "\f(CWev_child\fP \- watch out for process status changes"
-.IX Subsection "ev_child - watch out for process status changes"
-Child watchers trigger when your process receives a \s-1SIGCHLD\s0 in response to
-some child status changes (most typically when a child of yours dies). It
-is permissible to install a child watcher \fIafter\fR the child has been
-forked (which implies it might have already exited), as long as the event
-loop isn't entered (or is continued from a watcher).
-.PP
-Only the default event loop is capable of handling signals, and therefore
-you can only rgeister child watchers in the default event loop.
-.PP
-\fIProcess Interaction\fR
-.IX Subsection "Process Interaction"
-.PP
-Libev grabs \f(CW\*(C`SIGCHLD\*(C'\fR as soon as the default event loop is
-initialised. This is necessary to guarantee proper behaviour even if
-the first child watcher is started after the child exits. The occurance
-of \f(CW\*(C`SIGCHLD\*(C'\fR is recorded asynchronously, but child reaping is done
-synchronously as part of the event loop processing. Libev always reaps all
-children, even ones not watched.
-.PP
-\fIOverriding the Built-In Processing\fR
-.IX Subsection "Overriding the Built-In Processing"
-.PP
-Libev offers no special support for overriding the built-in child
-processing, but if your application collides with libev's default child
-handler, you can override it easily by installing your own handler for
-\&\f(CW\*(C`SIGCHLD\*(C'\fR after initialising the default loop, and making sure the
-default loop never gets destroyed. You are encouraged, however, to use an
-event-based approach to child reaping and thus use libev's support for
-that, so other libev users can use \f(CW\*(C`ev_child\*(C'\fR watchers freely.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_child_init (ev_child *, callback, int pid, int trace)" 4
-.IX Item "ev_child_init (ev_child *, callback, int pid, int trace)"
-.PD 0
-.IP "ev_child_set (ev_child *, int pid, int trace)" 4
-.IX Item "ev_child_set (ev_child *, int pid, int trace)"
-.PD
-Configures the watcher to wait for status changes of process \f(CW\*(C`pid\*(C'\fR (or
-\&\fIany\fR process if \f(CW\*(C`pid\*(C'\fR is specified as \f(CW0\fR). The callback can look
-at the \f(CW\*(C`rstatus\*(C'\fR member of the \f(CW\*(C`ev_child\*(C'\fR watcher structure to see
-the status word (use the macros from \f(CW\*(C`sys/wait.h\*(C'\fR and see your systems
-\&\f(CW\*(C`waitpid\*(C'\fR documentation). The \f(CW\*(C`rpid\*(C'\fR member contains the pid of the
-process causing the status change. \f(CW\*(C`trace\*(C'\fR must be either \f(CW0\fR (only
-activate the watcher when the process terminates) or \f(CW1\fR (additionally
-activate the watcher when the process is stopped or continued).
-.IP "int pid [read\-only]" 4
-.IX Item "int pid [read-only]"
-The process id this watcher watches out for, or \f(CW0\fR, meaning any process id.
-.IP "int rpid [read\-write]" 4
-.IX Item "int rpid [read-write]"
-The process id that detected a status change.
-.IP "int rstatus [read\-write]" 4
-.IX Item "int rstatus [read-write]"
-The process exit/trace status caused by \f(CW\*(C`rpid\*(C'\fR (see your systems
-\&\f(CW\*(C`waitpid\*(C'\fR and \f(CW\*(C`sys/wait.h\*(C'\fR documentation for details).
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: \f(CW\*(C`fork()\*(C'\fR a new process and install a child handler to wait for
-its completion.
-.PP
-.Vb 1
-\& ev_child cw;
-\&
-\& static void
-\& child_cb (EV_P_ struct ev_child *w, int revents)
-\& {
-\& ev_child_stop (EV_A_ w);
-\& printf ("process %d exited with status %x\en", w\->rpid, w\->rstatus);
-\& }
-\&
-\& pid_t pid = fork ();
-\&
-\& if (pid < 0)
-\& // error
-\& else if (pid == 0)
-\& {
-\& // the forked child executes here
-\& exit (1);
-\& }
-\& else
-\& {
-\& ev_child_init (&cw, child_cb, pid, 0);
-\& ev_child_start (EV_DEFAULT_ &cw);
-\& }
-.Ve
-.ie n .Sh """ev_stat"" \- did the file attributes just change?"
-.el .Sh "\f(CWev_stat\fP \- did the file attributes just change?"
-.IX Subsection "ev_stat - did the file attributes just change?"
-This watches a filesystem path for attribute changes. That is, it calls
-\&\f(CW\*(C`stat\*(C'\fR regularly (or when the \s-1OS\s0 says it changed) and sees if it changed
-compared to the last time, invoking the callback if it did.
-.PP
-The path does not need to exist: changing from \*(L"path exists\*(R" to \*(L"path does
-not exist\*(R" is a status change like any other. The condition \*(L"path does
-not exist\*(R" is signified by the \f(CW\*(C`st_nlink\*(C'\fR field being zero (which is
-otherwise always forced to be at least one) and all the other fields of
-the stat buffer having unspecified contents.
-.PP
-The path \fIshould\fR be absolute and \fImust not\fR end in a slash. If it is
-relative and your working directory changes, the behaviour is undefined.
-.PP
-Since there is no standard to do this, the portable implementation simply
-calls \f(CW\*(C`stat (2)\*(C'\fR regularly on the path to see if it changed somehow. You
-can specify a recommended polling interval for this case. If you specify
-a polling interval of \f(CW0\fR (highly recommended!) then a \fIsuitable,
-unspecified default\fR value will be used (which you can expect to be around
-five seconds, although this might change dynamically). Libev will also
-impose a minimum interval which is currently around \f(CW0.1\fR, but thats
-usually overkill.
-.PP
-This watcher type is not meant for massive numbers of stat watchers,
-as even with OS-supported change notifications, this can be
-resource-intensive.
-.PP
-At the time of this writing, only the Linux inotify interface is
-implemented (implementing kqueue support is left as an exercise for the
-reader, note, however, that the author sees no way of implementing ev_stat
-semantics with kqueue). Inotify will be used to give hints only and should
-not change the semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers, which means that libev
-sometimes needs to fall back to regular polling again even with inotify,
-but changes are usually detected immediately, and if the file exists there
-will be no polling.
-.PP
-\fI\s-1ABI\s0 Issues (Largefile Support)\fR
-.IX Subsection "ABI Issues (Largefile Support)"
-.PP
-Libev by default (unless the user overrides this) uses the default
-compilation environment, which means that on systems with optionally
-disabled large file support, you get the 32 bit version of the stat
-structure. When using the library from programs that change the \s-1ABI\s0 to
-use 64 bit file offsets the programs will fail. In that case you have to
-compile libev with the same flags to get binary compatibility. This is
-obviously the case with any flags that change the \s-1ABI\s0, but the problem is
-most noticably with ev_stat and largefile support.
-.PP
-\fIInotify\fR
-.IX Subsection "Inotify"
-.PP
-When \f(CW\*(C`inotify (7)\*(C'\fR support has been compiled into libev (generally only
-available on Linux) and present at runtime, it will be used to speed up
-change detection where possible. The inotify descriptor will be created lazily
-when the first \f(CW\*(C`ev_stat\*(C'\fR watcher is being started.
-.PP
-Inotify presence does not change the semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers
-except that changes might be detected earlier, and in some cases, to avoid
-making regular \f(CW\*(C`stat\*(C'\fR calls. Even in the presence of inotify support
-there are many cases where libev has to resort to regular \f(CW\*(C`stat\*(C'\fR polling.
-.PP
-(There is no support for kqueue, as apparently it cannot be used to
-implement this functionality, due to the requirement of having a file
-descriptor open on the object at all times).
-.PP
-\fIThe special problem of stat time resolution\fR
-.IX Subsection "The special problem of stat time resolution"
-.PP
-The \f(CW\*(C`stat ()\*(C'\fR syscall only supports full-second resolution portably, and
-even on systems where the resolution is higher, many filesystems still
-only support whole seconds.
-.PP
-That means that, if the time is the only thing that changes, you can
-easily miss updates: on the first update, \f(CW\*(C`ev_stat\*(C'\fR detects a change and
-calls your callback, which does something. When there is another update
-within the same second, \f(CW\*(C`ev_stat\*(C'\fR will be unable to detect it as the stat
-data does not change.
-.PP
-The solution to this is to delay acting on a change for slightly more
-than second (or till slightly after the next full second boundary), using
-a roughly one-second-delay \f(CW\*(C`ev_timer\*(C'\fR (e.g. \f(CW\*(C`ev_timer_set (w, 0., 1.02);
-ev_timer_again (loop, w)\*(C'\fR).
-.PP
-The \f(CW.02\fR offset is added to work around small timing inconsistencies
-of some operating systems (where the second counter of the current time
-might be be delayed. One such system is the Linux kernel, where a call to
-\&\f(CW\*(C`gettimeofday\*(C'\fR might return a timestamp with a full second later than
-a subsequent \f(CW\*(C`time\*(C'\fR call \- if the equivalent of \f(CW\*(C`time ()\*(C'\fR is used to
-update file times then there will be a small window where the kernel uses
-the previous second to update file times but libev might already execute
-the timer callback).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" 4
-.IX Item "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)"
-.PD 0
-.IP "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" 4
-.IX Item "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)"
-.PD
-Configures the watcher to wait for status changes of the given
-\&\f(CW\*(C`path\*(C'\fR. The \f(CW\*(C`interval\*(C'\fR is a hint on how quickly a change is expected to
-be detected and should normally be specified as \f(CW0\fR to let libev choose
-a suitable value. The memory pointed to by \f(CW\*(C`path\*(C'\fR must point to the same
-path for as long as the watcher is active.
-.Sp
-The callback will receive \f(CW\*(C`EV_STAT\*(C'\fR when a change was detected, relative
-to the attributes at the time the watcher was started (or the last change
-was detected).
-.IP "ev_stat_stat (loop, ev_stat *)" 4
-.IX Item "ev_stat_stat (loop, ev_stat *)"
-Updates the stat buffer immediately with new values. If you change the
-watched path in your callback, you could call this function to avoid
-detecting this change (while introducing a race condition if you are not
-the only one changing the path). Can also be useful simply to find out the
-new values.
-.IP "ev_statdata attr [read\-only]" 4
-.IX Item "ev_statdata attr [read-only]"
-The most-recently detected attributes of the file. Although the type is
-\&\f(CW\*(C`ev_statdata\*(C'\fR, this is usually the (or one of the) \f(CW\*(C`struct stat\*(C'\fR types
-suitable for your system, but you can only rely on the POSIX-standardised
-members to be present. If the \f(CW\*(C`st_nlink\*(C'\fR member is \f(CW0\fR, then there was
-some error while \f(CW\*(C`stat\*(C'\fRing the file.
-.IP "ev_statdata prev [read\-only]" 4
-.IX Item "ev_statdata prev [read-only]"
-The previous attributes of the file. The callback gets invoked whenever
-\&\f(CW\*(C`prev\*(C'\fR != \f(CW\*(C`attr\*(C'\fR, or, more precisely, one or more of these members
-differ: \f(CW\*(C`st_dev\*(C'\fR, \f(CW\*(C`st_ino\*(C'\fR, \f(CW\*(C`st_mode\*(C'\fR, \f(CW\*(C`st_nlink\*(C'\fR, \f(CW\*(C`st_uid\*(C'\fR,
-\&\f(CW\*(C`st_gid\*(C'\fR, \f(CW\*(C`st_rdev\*(C'\fR, \f(CW\*(C`st_size\*(C'\fR, \f(CW\*(C`st_atime\*(C'\fR, \f(CW\*(C`st_mtime\*(C'\fR, \f(CW\*(C`st_ctime\*(C'\fR.
-.IP "ev_tstamp interval [read\-only]" 4
-.IX Item "ev_tstamp interval [read-only]"
-The specified interval.
-.IP "const char *path [read\-only]" 4
-.IX Item "const char *path [read-only]"
-The filesystem path that is being watched.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Watch \f(CW\*(C`/etc/passwd\*(C'\fR for attribute changes.
-.PP
-.Vb 10
-\& static void
-\& passwd_cb (struct ev_loop *loop, ev_stat *w, int revents)
-\& {
-\& /* /etc/passwd changed in some way */
-\& if (w\->attr.st_nlink)
-\& {
-\& printf ("passwd current size %ld\en", (long)w\->attr.st_size);
-\& printf ("passwd current atime %ld\en", (long)w\->attr.st_mtime);
-\& printf ("passwd current mtime %ld\en", (long)w\->attr.st_mtime);
-\& }
-\& else
-\& /* you shalt not abuse printf for puts */
-\& puts ("wow, /etc/passwd is not there, expect problems. "
-\& "if this is windows, they already arrived\en");
-\& }
-\&
-\& ...
-\& ev_stat passwd;
-\&
-\& ev_stat_init (&passwd, passwd_cb, "/etc/passwd", 0.);
-\& ev_stat_start (loop, &passwd);
-.Ve
-.PP
-Example: Like above, but additionally use a one-second delay so we do not
-miss updates (however, frequent updates will delay processing, too, so
-one might do the work both on \f(CW\*(C`ev_stat\*(C'\fR callback invocation \fIand\fR on
-\&\f(CW\*(C`ev_timer\*(C'\fR callback invocation).
-.PP
-.Vb 2
-\& static ev_stat passwd;
-\& static ev_timer timer;
-\&
-\& static void
-\& timer_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& ev_timer_stop (EV_A_ w);
-\&
-\& /* now it\*(Aqs one second after the most recent passwd change */
-\& }
-\&
-\& static void
-\& stat_cb (EV_P_ ev_stat *w, int revents)
-\& {
-\& /* reset the one\-second timer */
-\& ev_timer_again (EV_A_ &timer);
-\& }
-\&
-\& ...
-\& ev_stat_init (&passwd, stat_cb, "/etc/passwd", 0.);
-\& ev_stat_start (loop, &passwd);
-\& ev_timer_init (&timer, timer_cb, 0., 1.02);
-.Ve
-.ie n .Sh """ev_idle"" \- when you've got nothing better to do..."
-.el .Sh "\f(CWev_idle\fP \- when you've got nothing better to do..."
-.IX Subsection "ev_idle - when you've got nothing better to do..."
-Idle watchers trigger events when no other events of the same or higher
-priority are pending (prepare, check and other idle watchers do not
-count).
-.PP
-That is, as long as your process is busy handling sockets or timeouts
-(or even signals, imagine) of the same or higher priority it will not be
-triggered. But when your process is idle (or only lower-priority watchers
-are pending), the idle watchers are being called once per event loop
-iteration \- until stopped, that is, or your process receives more events
-and becomes busy again with higher priority stuff.
-.PP
-The most noteworthy effect is that as long as any idle watchers are
-active, the process will not block when waiting for new events.
-.PP
-Apart from keeping your process non-blocking (which is a useful
-effect on its own sometimes), idle watchers are a good place to do
-\&\*(L"pseudo-background processing\*(R", or delay processing stuff to after the
-event loop has handled all outstanding events.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_idle_init (ev_signal *, callback)" 4
-.IX Item "ev_idle_init (ev_signal *, callback)"
-Initialises and configures the idle watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_idle_set\*(C'\fR macro, but using it is utterly pointless,
-believe me.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Dynamically allocate an \f(CW\*(C`ev_idle\*(C'\fR watcher, start it, and in the
-callback, free it. Also, use no error checking, as usual.
-.PP
-.Vb 7
-\& static void
-\& idle_cb (struct ev_loop *loop, struct ev_idle *w, int revents)
-\& {
-\& free (w);
-\& // now do something you wanted to do when the program has
-\& // no longer anything immediate to do.
-\& }
-\&
-\& struct ev_idle *idle_watcher = malloc (sizeof (struct ev_idle));
-\& ev_idle_init (idle_watcher, idle_cb);
-\& ev_idle_start (loop, idle_cb);
-.Ve
-.ie n .Sh """ev_prepare""\fP and \f(CW""ev_check"" \- customise your event loop!"
-.el .Sh "\f(CWev_prepare\fP and \f(CWev_check\fP \- customise your event loop!"
-.IX Subsection "ev_prepare and ev_check - customise your event loop!"
-Prepare and check watchers are usually (but not always) used in tandem:
-prepare watchers get invoked before the process blocks and check watchers
-afterwards.
-.PP
-You \fImust not\fR call \f(CW\*(C`ev_loop\*(C'\fR or similar functions that enter
-the current event loop from either \f(CW\*(C`ev_prepare\*(C'\fR or \f(CW\*(C`ev_check\*(C'\fR
-watchers. Other loops than the current one are fine, however. The
-rationale behind this is that you do not need to check for recursion in
-those watchers, i.e. the sequence will always be \f(CW\*(C`ev_prepare\*(C'\fR, blocking,
-\&\f(CW\*(C`ev_check\*(C'\fR so if you have one watcher of each kind they will always be
-called in pairs bracketing the blocking call.
-.PP
-Their main purpose is to integrate other event mechanisms into libev and
-their use is somewhat advanced. This could be used, for example, to track
-variable changes, implement your own watchers, integrate net-snmp or a
-coroutine library and lots more. They are also occasionally useful if
-you cache some data and want to flush it before blocking (for example,
-in X programs you might want to do an \f(CW\*(C`XFlush ()\*(C'\fR in an \f(CW\*(C`ev_prepare\*(C'\fR
-watcher).
-.PP
-This is done by examining in each prepare call which file descriptors need
-to be watched by the other library, registering \f(CW\*(C`ev_io\*(C'\fR watchers for
-them and starting an \f(CW\*(C`ev_timer\*(C'\fR watcher for any timeouts (many libraries
-provide just this functionality). Then, in the check watcher you check for
-any events that occured (by checking the pending status of all watchers
-and stopping them) and call back into the library. The I/O and timer
-callbacks will never actually be called (but must be valid nevertheless,
-because you never know, you know?).
-.PP
-As another example, the Perl Coro module uses these hooks to integrate
-coroutines into libev programs, by yielding to other active coroutines
-during each prepare and only letting the process block if no coroutines
-are ready to run (it's actually more complicated: it only runs coroutines
-with priority higher than or equal to the event loop and one coroutine
-of lower priority, but only once, using idle watchers to keep the event
-loop from blocking if lower-priority coroutines are active, thus mapping
-low-priority coroutines to idle/background tasks).
-.PP
-It is recommended to give \f(CW\*(C`ev_check\*(C'\fR watchers highest (\f(CW\*(C`EV_MAXPRI\*(C'\fR)
-priority, to ensure that they are being run before any other watchers
-after the poll. Also, \f(CW\*(C`ev_check\*(C'\fR watchers (and \f(CW\*(C`ev_prepare\*(C'\fR watchers,
-too) should not activate (\*(L"feed\*(R") events into libev. While libev fully
-supports this, they might get executed before other \f(CW\*(C`ev_check\*(C'\fR watchers
-did their job. As \f(CW\*(C`ev_check\*(C'\fR watchers are often used to embed other
-(non-libev) event loops those other event loops might be in an unusable
-state until their \f(CW\*(C`ev_check\*(C'\fR watcher ran (always remind yourself to
-coexist peacefully with others).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_prepare_init (ev_prepare *, callback)" 4
-.IX Item "ev_prepare_init (ev_prepare *, callback)"
-.PD 0
-.IP "ev_check_init (ev_check *, callback)" 4
-.IX Item "ev_check_init (ev_check *, callback)"
-.PD
-Initialises and configures the prepare or check watcher \- they have no
-parameters of any kind. There are \f(CW\*(C`ev_prepare_set\*(C'\fR and \f(CW\*(C`ev_check_set\*(C'\fR
-macros, but using them is utterly, utterly and completely pointless.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-There are a number of principal ways to embed other event loops or modules
-into libev. Here are some ideas on how to include libadns into libev
-(there is a Perl module named \f(CW\*(C`EV::ADNS\*(C'\fR that does this, which you could
-use as a working example. Another Perl module named \f(CW\*(C`EV::Glib\*(C'\fR embeds a
-Glib main context into libev, and finally, \f(CW\*(C`Glib::EV\*(C'\fR embeds \s-1EV\s0 into the
-Glib event loop).
-.PP
-Method 1: Add \s-1IO\s0 watchers and a timeout watcher in a prepare handler,
-and in a check watcher, destroy them and call into libadns. What follows
-is pseudo-code only of course. This requires you to either use a low
-priority for the check watcher or use \f(CW\*(C`ev_clear_pending\*(C'\fR explicitly, as
-the callbacks for the IO/timeout watchers might not have been called yet.
-.PP
-.Vb 2
-\& static ev_io iow [nfd];
-\& static ev_timer tw;
-\&
-\& static void
-\& io_cb (ev_loop *loop, ev_io *w, int revents)
-\& {
-\& }
-\&
-\& // create io watchers for each fd and a timer before blocking
-\& static void
-\& adns_prepare_cb (ev_loop *loop, ev_prepare *w, int revents)
-\& {
-\& int timeout = 3600000;
-\& struct pollfd fds [nfd];
-\& // actual code will need to loop here and realloc etc.
-\& adns_beforepoll (ads, fds, &nfd, &timeout, timeval_from (ev_time ()));
-\&
-\& /* the callback is illegal, but won\*(Aqt be called as we stop during check */
-\& ev_timer_init (&tw, 0, timeout * 1e\-3);
-\& ev_timer_start (loop, &tw);
-\&
-\& // create one ev_io per pollfd
-\& for (int i = 0; i < nfd; ++i)
-\& {
-\& ev_io_init (iow + i, io_cb, fds [i].fd,
-\& ((fds [i].events & POLLIN ? EV_READ : 0)
-\& | (fds [i].events & POLLOUT ? EV_WRITE : 0)));
-\&
-\& fds [i].revents = 0;
-\& ev_io_start (loop, iow + i);
-\& }
-\& }
-\&
-\& // stop all watchers after blocking
-\& static void
-\& adns_check_cb (ev_loop *loop, ev_check *w, int revents)
-\& {
-\& ev_timer_stop (loop, &tw);
-\&
-\& for (int i = 0; i < nfd; ++i)
-\& {
-\& // set the relevant poll flags
-\& // could also call adns_processreadable etc. here
-\& struct pollfd *fd = fds + i;
-\& int revents = ev_clear_pending (iow + i);
-\& if (revents & EV_READ ) fd\->revents |= fd\->events & POLLIN;
-\& if (revents & EV_WRITE) fd\->revents |= fd\->events & POLLOUT;
-\&
-\& // now stop the watcher
-\& ev_io_stop (loop, iow + i);
-\& }
-\&
-\& adns_afterpoll (adns, fds, nfd, timeval_from (ev_now (loop));
-\& }
-.Ve
-.PP
-Method 2: This would be just like method 1, but you run \f(CW\*(C`adns_afterpoll\*(C'\fR
-in the prepare watcher and would dispose of the check watcher.
-.PP
-Method 3: If the module to be embedded supports explicit event
-notification (adns does), you can also make use of the actual watcher
-callbacks, and only destroy/create the watchers in the prepare watcher.
-.PP
-.Vb 5
-\& static void
-\& timer_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& adns_state ads = (adns_state)w\->data;
-\& update_now (EV_A);
-\&
-\& adns_processtimeouts (ads, &tv_now);
-\& }
-\&
-\& static void
-\& io_cb (EV_P_ ev_io *w, int revents)
-\& {
-\& adns_state ads = (adns_state)w\->data;
-\& update_now (EV_A);
-\&
-\& if (revents & EV_READ ) adns_processreadable (ads, w\->fd, &tv_now);
-\& if (revents & EV_WRITE) adns_processwriteable (ads, w\->fd, &tv_now);
-\& }
-\&
-\& // do not ever call adns_afterpoll
-.Ve
-.PP
-Method 4: Do not use a prepare or check watcher because the module you
-want to embed is too inflexible to support it. Instead, youc na override
-their poll function. The drawback with this solution is that the main
-loop is now no longer controllable by \s-1EV\s0. The \f(CW\*(C`Glib::EV\*(C'\fR module does
-this.
-.PP
-.Vb 4
-\& static gint
-\& event_poll_func (GPollFD *fds, guint nfds, gint timeout)
-\& {
-\& int got_events = 0;
-\&
-\& for (n = 0; n < nfds; ++n)
-\& // create/start io watcher that sets the relevant bits in fds[n] and increment got_events
-\&
-\& if (timeout >= 0)
-\& // create/start timer
-\&
-\& // poll
-\& ev_loop (EV_A_ 0);
-\&
-\& // stop timer again
-\& if (timeout >= 0)
-\& ev_timer_stop (EV_A_ &to);
-\&
-\& // stop io watchers again \- their callbacks should have set
-\& for (n = 0; n < nfds; ++n)
-\& ev_io_stop (EV_A_ iow [n]);
-\&
-\& return got_events;
-\& }
-.Ve
-.ie n .Sh """ev_embed"" \- when one backend isn't enough..."
-.el .Sh "\f(CWev_embed\fP \- when one backend isn't enough..."
-.IX Subsection "ev_embed - when one backend isn't enough..."
-This is a rather advanced watcher type that lets you embed one event loop
-into another (currently only \f(CW\*(C`ev_io\*(C'\fR events are supported in the embedded
-loop, other types of watchers might be handled in a delayed or incorrect
-fashion and must not be used).
-.PP
-There are primarily two reasons you would want that: work around bugs and
-prioritise I/O.
-.PP
-As an example for a bug workaround, the kqueue backend might only support
-sockets on some platform, so it is unusable as generic backend, but you
-still want to make use of it because you have many sockets and it scales
-so nicely. In this case, you would create a kqueue-based loop and embed it
-into your default loop (which might use e.g. poll). Overall operation will
-be a bit slower because first libev has to poll and then call kevent, but
-at least you can use both at what they are best.
-.PP
-As for prioritising I/O: rarely you have the case where some fds have
-to be watched and handled very quickly (with low latency), and even
-priorities and idle watchers might have too much overhead. In this case
-you would put all the high priority stuff in one loop and all the rest in
-a second one, and embed the second one in the first.
-.PP
-As long as the watcher is active, the callback will be invoked every time
-there might be events pending in the embedded loop. The callback must then
-call \f(CW\*(C`ev_embed_sweep (mainloop, watcher)\*(C'\fR to make a single sweep and invoke
-their callbacks (you could also start an idle watcher to give the embedded
-loop strictly lower priority for example). You can also set the callback
-to \f(CW0\fR, in which case the embed watcher will automatically execute the
-embedded loop sweep.
-.PP
-As long as the watcher is started it will automatically handle events. The
-callback will be invoked whenever some events have been handled. You can
-set the callback to \f(CW0\fR to avoid having to specify one if you are not
-interested in that.
-.PP
-Also, there have not currently been made special provisions for forking:
-when you fork, you not only have to call \f(CW\*(C`ev_loop_fork\*(C'\fR on both loops,
-but you will also have to stop and restart any \f(CW\*(C`ev_embed\*(C'\fR watchers
-yourself.
-.PP
-Unfortunately, not all backends are embeddable, only the ones returned by
-\&\f(CW\*(C`ev_embeddable_backends\*(C'\fR are, which, unfortunately, does not include any
-portable one.
-.PP
-So when you want to use this feature you will always have to be prepared
-that you cannot get an embeddable loop. The recommended way to get around
-this is to have a separate variables for your embeddable loop, try to
-create it, and if that fails, use the normal loop for everything.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" 4
-.IX Item "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)"
-.PD 0
-.IP "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" 4
-.IX Item "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)"
-.PD
-Configures the watcher to embed the given loop, which must be
-embeddable. If the callback is \f(CW0\fR, then \f(CW\*(C`ev_embed_sweep\*(C'\fR will be
-invoked automatically, otherwise it is the responsibility of the callback
-to invoke it (it will continue to be called until the sweep has been done,
-if you do not want thta, you need to temporarily stop the embed watcher).
-.IP "ev_embed_sweep (loop, ev_embed *)" 4
-.IX Item "ev_embed_sweep (loop, ev_embed *)"
-Make a single, non-blocking sweep over the embedded loop. This works
-similarly to \f(CW\*(C`ev_loop (embedded_loop, EVLOOP_NONBLOCK)\*(C'\fR, but in the most
-apropriate way for embedded loops.
-.IP "struct ev_loop *other [read\-only]" 4
-.IX Item "struct ev_loop *other [read-only]"
-The embedded event loop.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Try to get an embeddable event loop and embed it into the default
-event loop. If that is not possible, use the default loop. The default
-loop is stored in \f(CW\*(C`loop_hi\*(C'\fR, while the mebeddable loop is stored in
-\&\f(CW\*(C`loop_lo\*(C'\fR (which is \f(CW\*(C`loop_hi\*(C'\fR in the acse no embeddable loop can be
-used).
-.PP
-.Vb 3
-\& struct ev_loop *loop_hi = ev_default_init (0);
-\& struct ev_loop *loop_lo = 0;
-\& struct ev_embed embed;
-\&
-\& // see if there is a chance of getting one that works
-\& // (remember that a flags value of 0 means autodetection)
-\& loop_lo = ev_embeddable_backends () & ev_recommended_backends ()
-\& ? ev_loop_new (ev_embeddable_backends () & ev_recommended_backends ())
-\& : 0;
-\&
-\& // if we got one, then embed it, otherwise default to loop_hi
-\& if (loop_lo)
-\& {
-\& ev_embed_init (&embed, 0, loop_lo);
-\& ev_embed_start (loop_hi, &embed);
-\& }
-\& else
-\& loop_lo = loop_hi;
-.Ve
-.PP
-Example: Check if kqueue is available but not recommended and create
-a kqueue backend for use with sockets (which usually work with any
-kqueue implementation). Store the kqueue/socket\-only event loop in
-\&\f(CW\*(C`loop_socket\*(C'\fR. (One might optionally use \f(CW\*(C`EVFLAG_NOENV\*(C'\fR, too).
-.PP
-.Vb 3
-\& struct ev_loop *loop = ev_default_init (0);
-\& struct ev_loop *loop_socket = 0;
-\& struct ev_embed embed;
-\&
-\& if (ev_supported_backends () & ~ev_recommended_backends () & EVBACKEND_KQUEUE)
-\& if ((loop_socket = ev_loop_new (EVBACKEND_KQUEUE))
-\& {
-\& ev_embed_init (&embed, 0, loop_socket);
-\& ev_embed_start (loop, &embed);
-\& }
-\&
-\& if (!loop_socket)
-\& loop_socket = loop;
-\&
-\& // now use loop_socket for all sockets, and loop for everything else
-.Ve
-.ie n .Sh """ev_fork"" \- the audacity to resume the event loop after a fork"
-.el .Sh "\f(CWev_fork\fP \- the audacity to resume the event loop after a fork"
-.IX Subsection "ev_fork - the audacity to resume the event loop after a fork"
-Fork watchers are called when a \f(CW\*(C`fork ()\*(C'\fR was detected (usually because
-whoever is a good citizen cared to tell libev about it by calling
-\&\f(CW\*(C`ev_default_fork\*(C'\fR or \f(CW\*(C`ev_loop_fork\*(C'\fR). The invocation is done before the
-event loop blocks next and before \f(CW\*(C`ev_check\*(C'\fR watchers are being called,
-and only in the child after the fork. If whoever good citizen calling
-\&\f(CW\*(C`ev_default_fork\*(C'\fR cheats and calls it in the wrong process, the fork
-handlers will be invoked, too, of course.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_fork_init (ev_signal *, callback)" 4
-.IX Item "ev_fork_init (ev_signal *, callback)"
-Initialises and configures the fork watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_fork_set\*(C'\fR macro, but using it is utterly pointless,
-believe me.
-.ie n .Sh """ev_async"" \- how to wake up another event loop"
-.el .Sh "\f(CWev_async\fP \- how to wake up another event loop"
-.IX Subsection "ev_async - how to wake up another event loop"
-In general, you cannot use an \f(CW\*(C`ev_loop\*(C'\fR from multiple threads or other
-asynchronous sources such as signal handlers (as opposed to multiple event
-loops \- those are of course safe to use in different threads).
-.PP
-Sometimes, however, you need to wake up another event loop you do not
-control, for example because it belongs to another thread. This is what
-\&\f(CW\*(C`ev_async\*(C'\fR watchers do: as long as the \f(CW\*(C`ev_async\*(C'\fR watcher is active, you
-can signal it by calling \f(CW\*(C`ev_async_send\*(C'\fR, which is thread\- and signal
-safe.
-.PP
-This functionality is very similar to \f(CW\*(C`ev_signal\*(C'\fR watchers, as signals,
-too, are asynchronous in nature, and signals, too, will be compressed
-(i.e. the number of callback invocations may be less than the number of
-\&\f(CW\*(C`ev_async_sent\*(C'\fR calls).
-.PP
-Unlike \f(CW\*(C`ev_signal\*(C'\fR watchers, \f(CW\*(C`ev_async\*(C'\fR works with any event loop, not
-just the default loop.
-.PP
-\fIQueueing\fR
-.IX Subsection "Queueing"
-.PP
-\&\f(CW\*(C`ev_async\*(C'\fR does not support queueing of data in any way. The reason
-is that the author does not know of a simple (or any) algorithm for a
-multiple-writer-single-reader queue that works in all cases and doesn't
-need elaborate support such as pthreads.
-.PP
-That means that if you want to queue data, you have to provide your own
-queue. But at least I can tell you would implement locking around your
-queue:
-.IP "queueing from a signal handler context" 4
-.IX Item "queueing from a signal handler context"
-To implement race-free queueing, you simply add to the queue in the signal
-handler but you block the signal handler in the watcher callback. Here is an example that does that for
-some fictitiuous \s-1SIGUSR1\s0 handler:
-.Sp
-.Vb 1
-\& static ev_async mysig;
-\&
-\& static void
-\& sigusr1_handler (void)
-\& {
-\& sometype data;
-\&
-\& // no locking etc.
-\& queue_put (data);
-\& ev_async_send (EV_DEFAULT_ &mysig);
-\& }
-\&
-\& static void
-\& mysig_cb (EV_P_ ev_async *w, int revents)
-\& {
-\& sometype data;
-\& sigset_t block, prev;
-\&
-\& sigemptyset (&block);
-\& sigaddset (&block, SIGUSR1);
-\& sigprocmask (SIG_BLOCK, &block, &prev);
-\&
-\& while (queue_get (&data))
-\& process (data);
-\&
-\& if (sigismember (&prev, SIGUSR1)
-\& sigprocmask (SIG_UNBLOCK, &block, 0);
-\& }
-.Ve
-.Sp
-(Note: pthreads in theory requires you to use \f(CW\*(C`pthread_setmask\*(C'\fR
-instead of \f(CW\*(C`sigprocmask\*(C'\fR when you use threads, but libev doesn't do it
-either...).
-.IP "queueing from a thread context" 4
-.IX Item "queueing from a thread context"
-The strategy for threads is different, as you cannot (easily) block
-threads but you can easily preempt them, so to queue safely you need to
-employ a traditional mutex lock, such as in this pthread example:
-.Sp
-.Vb 2
-\& static ev_async mysig;
-\& static pthread_mutex_t mymutex = PTHREAD_MUTEX_INITIALIZER;
-\&
-\& static void
-\& otherthread (void)
-\& {
-\& // only need to lock the actual queueing operation
-\& pthread_mutex_lock (&mymutex);
-\& queue_put (data);
-\& pthread_mutex_unlock (&mymutex);
-\&
-\& ev_async_send (EV_DEFAULT_ &mysig);
-\& }
-\&
-\& static void
-\& mysig_cb (EV_P_ ev_async *w, int revents)
-\& {
-\& pthread_mutex_lock (&mymutex);
-\&
-\& while (queue_get (&data))
-\& process (data);
-\&
-\& pthread_mutex_unlock (&mymutex);
-\& }
-.Ve
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_async_init (ev_async *, callback)" 4
-.IX Item "ev_async_init (ev_async *, callback)"
-Initialises and configures the async watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_asynd_set\*(C'\fR macro, but using it is utterly pointless,
-believe me.
-.IP "ev_async_send (loop, ev_async *)" 4
-.IX Item "ev_async_send (loop, ev_async *)"
-Sends/signals/activates the given \f(CW\*(C`ev_async\*(C'\fR watcher, that is, feeds
-an \f(CW\*(C`EV_ASYNC\*(C'\fR event on the watcher into the event loop. Unlike
-\&\f(CW\*(C`ev_feed_event\*(C'\fR, this call is safe to do in other threads, signal or
-similar contexts (see the dicusssion of \f(CW\*(C`EV_ATOMIC_T\*(C'\fR in the embedding
-section below on what exactly this means).
-.Sp
-This call incurs the overhead of a syscall only once per loop iteration,
-so while the overhead might be noticable, it doesn't apply to repeated
-calls to \f(CW\*(C`ev_async_send\*(C'\fR.
-.IP "bool = ev_async_pending (ev_async *)" 4
-.IX Item "bool = ev_async_pending (ev_async *)"
-Returns a non-zero value when \f(CW\*(C`ev_async_send\*(C'\fR has been called on the
-watcher but the event has not yet been processed (or even noted) by the
-event loop.
-.Sp
-\&\f(CW\*(C`ev_async_send\*(C'\fR sets a flag in the watcher and wakes up the loop. When
-the loop iterates next and checks for the watcher to have become active,
-it will reset the flag again. \f(CW\*(C`ev_async_pending\*(C'\fR can be used to very
-quickly check wether invoking the loop might be a good idea.
-.Sp
-Not that this does \fInot\fR check wether the watcher itself is pending, only
-wether it has been requested to make this watcher pending.
-.SH "OTHER FUNCTIONS"
-.IX Header "OTHER FUNCTIONS"
-There are some other functions of possible interest. Described. Here. Now.
-.IP "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)" 4
-.IX Item "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)"
-This function combines a simple timer and an I/O watcher, calls your
-callback on whichever event happens first and automatically stop both
-watchers. This is useful if you want to wait for a single event on an fd
-or timeout without having to allocate/configure/start/stop/free one or
-more watchers yourself.
-.Sp
-If \f(CW\*(C`fd\*(C'\fR is less than 0, then no I/O watcher will be started and events
-is being ignored. Otherwise, an \f(CW\*(C`ev_io\*(C'\fR watcher for the given \f(CW\*(C`fd\*(C'\fR and
-\&\f(CW\*(C`events\*(C'\fR set will be craeted and started.
-.Sp
-If \f(CW\*(C`timeout\*(C'\fR is less than 0, then no timeout watcher will be
-started. Otherwise an \f(CW\*(C`ev_timer\*(C'\fR watcher with after = \f(CW\*(C`timeout\*(C'\fR (and
-repeat = 0) will be started. While \f(CW0\fR is a valid timeout, it is of
-dubious value.
-.Sp
-The callback has the type \f(CW\*(C`void (*cb)(int revents, void *arg)\*(C'\fR and gets
-passed an \f(CW\*(C`revents\*(C'\fR set like normal event callbacks (a combination of
-\&\f(CW\*(C`EV_ERROR\*(C'\fR, \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or \f(CW\*(C`EV_TIMEOUT\*(C'\fR) and the \f(CW\*(C`arg\*(C'\fR
-value passed to \f(CW\*(C`ev_once\*(C'\fR:
-.Sp
-.Vb 7
-\& static void stdin_ready (int revents, void *arg)
-\& {
-\& if (revents & EV_TIMEOUT)
-\& /* doh, nothing entered */;
-\& else if (revents & EV_READ)
-\& /* stdin might have data for us, joy! */;
-\& }
-\&
-\& ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0);
-.Ve
-.IP "ev_feed_event (ev_loop *, watcher *, int revents)" 4
-.IX Item "ev_feed_event (ev_loop *, watcher *, int revents)"
-Feeds the given event set into the event loop, as if the specified event
-had happened for the specified watcher (which must be a pointer to an
-initialised but not necessarily started event watcher).
-.IP "ev_feed_fd_event (ev_loop *, int fd, int revents)" 4
-.IX Item "ev_feed_fd_event (ev_loop *, int fd, int revents)"
-Feed an event on the given fd, as if a file descriptor backend detected
-the given events it.
-.IP "ev_feed_signal_event (ev_loop *loop, int signum)" 4
-.IX Item "ev_feed_signal_event (ev_loop *loop, int signum)"
-Feed an event as if the given signal occured (\f(CW\*(C`loop\*(C'\fR must be the default
-loop!).
-.SH "LIBEVENT EMULATION"
-.IX Header "LIBEVENT EMULATION"
-Libev offers a compatibility emulation layer for libevent. It cannot
-emulate the internals of libevent, so here are some usage hints:
-.IP "\(bu" 4
-Use it by including <event.h>, as usual.
-.IP "\(bu" 4
-The following members are fully supported: ev_base, ev_callback,
-ev_arg, ev_fd, ev_res, ev_events.
-.IP "\(bu" 4
-Avoid using ev_flags and the EVLIST_*\-macros, while it is
-maintained by libev, it does not work exactly the same way as in libevent (consider
-it a private \s-1API\s0).
-.IP "\(bu" 4
-Priorities are not currently supported. Initialising priorities
-will fail and all watchers will have the same priority, even though there
-is an ev_pri field.
-.IP "\(bu" 4
-In libevent, the last base created gets the signals, in libev, the
-first base created (== the default loop) gets the signals.
-.IP "\(bu" 4
-Other members are not supported.
-.IP "\(bu" 4
-The libev emulation is \fInot\fR \s-1ABI\s0 compatible to libevent, you need
-to use the libev header file and library.
-.SH "\*(C+ SUPPORT"
-.IX Header " SUPPORT"
-Libev comes with some simplistic wrapper classes for \*(C+ that mainly allow
-you to use some convinience methods to start/stop watchers and also change
-the callback model to a model using method callbacks on objects.
-.PP
-To use it,
-.PP
-.Vb 1
-\& #include <ev++.h>
-.Ve
-.PP
-This automatically includes \fIev.h\fR and puts all of its definitions (many
-of them macros) into the global namespace. All \*(C+ specific things are
-put into the \f(CW\*(C`ev\*(C'\fR namespace. It should support all the same embedding
-options as \fIev.h\fR, most notably \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR.
-.PP
-Care has been taken to keep the overhead low. The only data member the \*(C+
-classes add (compared to plain C\-style watchers) is the event loop pointer
-that the watcher is associated with (or no additional members at all if
-you disable \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR when embedding libev).
-.PP
-Currently, functions, and static and non-static member functions can be
-used as callbacks. Other types should be easy to add as long as they only
-need one additional pointer for context. If you need support for other
-types of functors please contact the author (preferably after implementing
-it).
-.PP
-Here is a list of things available in the \f(CW\*(C`ev\*(C'\fR namespace:
-.ie n .IP """ev::READ""\fR, \f(CW""ev::WRITE"" etc." 4
-.el .IP "\f(CWev::READ\fR, \f(CWev::WRITE\fR etc." 4
-.IX Item "ev::READ, ev::WRITE etc."
-These are just enum values with the same values as the \f(CW\*(C`EV_READ\*(C'\fR etc.
-macros from \fIev.h\fR.
-.ie n .IP """ev::tstamp""\fR, \f(CW""ev::now""" 4
-.el .IP "\f(CWev::tstamp\fR, \f(CWev::now\fR" 4
-.IX Item "ev::tstamp, ev::now"
-Aliases to the same types/functions as with the \f(CW\*(C`ev_\*(C'\fR prefix.
-.ie n .IP """ev::io""\fR, \f(CW""ev::timer""\fR, \f(CW""ev::periodic""\fR, \f(CW""ev::idle""\fR, \f(CW""ev::sig"" etc." 4
-.el .IP "\f(CWev::io\fR, \f(CWev::timer\fR, \f(CWev::periodic\fR, \f(CWev::idle\fR, \f(CWev::sig\fR etc." 4
-.IX Item "ev::io, ev::timer, ev::periodic, ev::idle, ev::sig etc."
-For each \f(CW\*(C`ev_TYPE\*(C'\fR watcher in \fIev.h\fR there is a corresponding class of
-the same name in the \f(CW\*(C`ev\*(C'\fR namespace, with the exception of \f(CW\*(C`ev_signal\*(C'\fR
-which is called \f(CW\*(C`ev::sig\*(C'\fR to avoid clashes with the \f(CW\*(C`signal\*(C'\fR macro
-defines by many implementations.
-.Sp
-All of those classes have these methods:
-.RS 4
-.IP "ev::TYPE::TYPE ()" 4
-.IX Item "ev::TYPE::TYPE ()"
-.PD 0
-.IP "ev::TYPE::TYPE (struct ev_loop *)" 4
-.IX Item "ev::TYPE::TYPE (struct ev_loop *)"
-.IP "ev::TYPE::~TYPE" 4
-.IX Item "ev::TYPE::~TYPE"
-.PD
-The constructor (optionally) takes an event loop to associate the watcher
-with. If it is omitted, it will use \f(CW\*(C`EV_DEFAULT\*(C'\fR.
-.Sp
-The constructor calls \f(CW\*(C`ev_init\*(C'\fR for you, which means you have to call the
-\&\f(CW\*(C`set\*(C'\fR method before starting it.
-.Sp
-It will not set a callback, however: You have to call the templated \f(CW\*(C`set\*(C'\fR
-method to set a callback before you can start the watcher.
-.Sp
-(The reason why you have to use a method is a limitation in \*(C+ which does
-not allow explicit template arguments for constructors).
-.Sp
-The destructor automatically stops the watcher if it is active.
-.IP "w\->set<class, &class::method> (object *)" 4
-.IX Item "w->set<class, &class::method> (object *)"
-This method sets the callback method to call. The method has to have a
-signature of \f(CW\*(C`void (*)(ev_TYPE &, int)\*(C'\fR, it receives the watcher as
-first argument and the \f(CW\*(C`revents\*(C'\fR as second. The object must be given as
-parameter and is stored in the \f(CW\*(C`data\*(C'\fR member of the watcher.
-.Sp
-This method synthesizes efficient thunking code to call your method from
-the C callback that libev requires. If your compiler can inline your
-callback (i.e. it is visible to it at the place of the \f(CW\*(C`set\*(C'\fR call and
-your compiler is good :), then the method will be fully inlined into the
-thunking function, making it as fast as a direct C callback.
-.Sp
-Example: simple class declaration and watcher initialisation
-.Sp
-.Vb 4
-\& struct myclass
-\& {
-\& void io_cb (ev::io &w, int revents) { }
-\& }
-\&
-\& myclass obj;
-\& ev::io iow;
-\& iow.set <myclass, &myclass::io_cb> (&obj);
-.Ve
-.IP "w\->set<function> (void *data = 0)" 4
-.IX Item "w->set<function> (void *data = 0)"
-Also sets a callback, but uses a static method or plain function as
-callback. The optional \f(CW\*(C`data\*(C'\fR argument will be stored in the watcher's
-\&\f(CW\*(C`data\*(C'\fR member and is free for you to use.
-.Sp
-The prototype of the \f(CW\*(C`function\*(C'\fR must be \f(CW\*(C`void (*)(ev::TYPE &w, int)\*(C'\fR.
-.Sp
-See the method\-\f(CW\*(C`set\*(C'\fR above for more details.
-.Sp
-Example:
-.Sp
-.Vb 2
-\& static void io_cb (ev::io &w, int revents) { }
-\& iow.set <io_cb> ();
-.Ve
-.IP "w\->set (struct ev_loop *)" 4
-.IX Item "w->set (struct ev_loop *)"
-Associates a different \f(CW\*(C`struct ev_loop\*(C'\fR with this watcher. You can only
-do this when the watcher is inactive (and not pending either).
-.IP "w\->set ([args])" 4
-.IX Item "w->set ([args])"
-Basically the same as \f(CW\*(C`ev_TYPE_set\*(C'\fR, with the same args. Must be
-called at least once. Unlike the C counterpart, an active watcher gets
-automatically stopped and restarted when reconfiguring it with this
-method.
-.IP "w\->start ()" 4
-.IX Item "w->start ()"
-Starts the watcher. Note that there is no \f(CW\*(C`loop\*(C'\fR argument, as the
-constructor already stores the event loop.
-.IP "w\->stop ()" 4
-.IX Item "w->stop ()"
-Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument.
-.ie n .IP "w\->again () (""ev::timer""\fR, \f(CW""ev::periodic"" only)" 4
-.el .IP "w\->again () (\f(CWev::timer\fR, \f(CWev::periodic\fR only)" 4
-.IX Item "w->again () (ev::timer, ev::periodic only)"
-For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding
-\&\f(CW\*(C`ev_TYPE_again\*(C'\fR function.
-.ie n .IP "w\->sweep () (""ev::embed"" only)" 4
-.el .IP "w\->sweep () (\f(CWev::embed\fR only)" 4
-.IX Item "w->sweep () (ev::embed only)"
-Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR.
-.ie n .IP "w\->update () (""ev::stat"" only)" 4
-.el .IP "w\->update () (\f(CWev::stat\fR only)" 4
-.IX Item "w->update () (ev::stat only)"
-Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR.
-.RE
-.RS 4
-.RE
-.PP
-Example: Define a class with an \s-1IO\s0 and idle watcher, start one of them in
-the constructor.
-.PP
-.Vb 4
-\& class myclass
-\& {
-\& ev::io io; void io_cb (ev::io &w, int revents);
-\& ev:idle idle void idle_cb (ev::idle &w, int revents);
-\&
-\& myclass (int fd)
-\& {
-\& io .set <myclass, &myclass::io_cb > (this);
-\& idle.set <myclass, &myclass::idle_cb> (this);
-\&
-\& io.start (fd, ev::READ);
-\& }
-\& };
-.Ve
-.SH "OTHER LANGUAGE BINDINGS"
-.IX Header "OTHER LANGUAGE BINDINGS"
-Libev does not offer other language bindings itself, but bindings for a
-numbe rof languages exist in the form of third-party packages. If you know
-any interesting language binding in addition to the ones listed here, drop
-me a note.
-.IP "Perl" 4
-.IX Item "Perl"
-The \s-1EV\s0 module implements the full libev \s-1API\s0 and is actually used to test
-libev. \s-1EV\s0 is developed together with libev. Apart from the \s-1EV\s0 core module,
-there are additional modules that implement libev-compatible interfaces
-to \f(CW\*(C`libadns\*(C'\fR (\f(CW\*(C`EV::ADNS\*(C'\fR), \f(CW\*(C`Net::SNMP\*(C'\fR (\f(CW\*(C`Net::SNMP::EV\*(C'\fR) and the
-\&\f(CW\*(C`libglib\*(C'\fR event core (\f(CW\*(C`Glib::EV\*(C'\fR and \f(CW\*(C`EV::Glib\*(C'\fR).
-.Sp
-It can be found and installed via \s-1CPAN\s0, its homepage is found at
-<http://software.schmorp.de/pkg/EV>.
-.IP "Ruby" 4
-.IX Item "Ruby"
-Tony Arcieri has written a ruby extension that offers access to a subset
-of the libev \s-1API\s0 and adds filehandle abstractions, asynchronous \s-1DNS\s0 and
-more on top of it. It can be found via gem servers. Its homepage is at
-<http://rev.rubyforge.org/>.
-.IP "D" 4
-.IX Item "D"
-Leandro Lucarella has written a D language binding (\fIev.d\fR) for libev, to
-be found at <http://git.llucax.com.ar/?p=software/ev.d.git;a=summary>.
-.SH "MACRO MAGIC"
-.IX Header "MACRO MAGIC"
-Libev can be compiled with a variety of options, the most fundamantal
-of which is \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most)
-functions and callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument.
-.PP
-To make it easier to write programs that cope with either variant, the
-following macros are defined:
-.ie n .IP """EV_A""\fR, \f(CW""EV_A_""" 4
-.el .IP "\f(CWEV_A\fR, \f(CWEV_A_\fR" 4
-.IX Item "EV_A, EV_A_"
-This provides the loop \fIargument\fR for functions, if one is required (\*(L"ev
-loop argument\*(R"). The \f(CW\*(C`EV_A\*(C'\fR form is used when this is the sole argument,
-\&\f(CW\*(C`EV_A_\*(C'\fR is used when other arguments are following. Example:
-.Sp
-.Vb 3
-\& ev_unref (EV_A);
-\& ev_timer_add (EV_A_ watcher);
-\& ev_loop (EV_A_ 0);
-.Ve
-.Sp
-It assumes the variable \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR is in scope,
-which is often provided by the following macro.
-.ie n .IP """EV_P""\fR, \f(CW""EV_P_""" 4
-.el .IP "\f(CWEV_P\fR, \f(CWEV_P_\fR" 4
-.IX Item "EV_P, EV_P_"
-This provides the loop \fIparameter\fR for functions, if one is required (\*(L"ev
-loop parameter\*(R"). The \f(CW\*(C`EV_P\*(C'\fR form is used when this is the sole parameter,
-\&\f(CW\*(C`EV_P_\*(C'\fR is used when other parameters are following. Example:
-.Sp
-.Vb 2
-\& // this is how ev_unref is being declared
-\& static void ev_unref (EV_P);
-\&
-\& // this is how you can declare your typical callback
-\& static void cb (EV_P_ ev_timer *w, int revents)
-.Ve
-.Sp
-It declares a parameter \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR, quite
-suitable for use with \f(CW\*(C`EV_A\*(C'\fR.
-.ie n .IP """EV_DEFAULT""\fR, \f(CW""EV_DEFAULT_""" 4
-.el .IP "\f(CWEV_DEFAULT\fR, \f(CWEV_DEFAULT_\fR" 4
-.IX Item "EV_DEFAULT, EV_DEFAULT_"
-Similar to the other two macros, this gives you the value of the default
-loop, if multiple loops are supported (\*(L"ev loop default\*(R").
-.ie n .IP """EV_DEFAULT_UC""\fR, \f(CW""EV_DEFAULT_UC_""" 4
-.el .IP "\f(CWEV_DEFAULT_UC\fR, \f(CWEV_DEFAULT_UC_\fR" 4
-.IX Item "EV_DEFAULT_UC, EV_DEFAULT_UC_"
-Usage identical to \f(CW\*(C`EV_DEFAULT\*(C'\fR and \f(CW\*(C`EV_DEFAULT_\*(C'\fR, but requires that the
-default loop has been initialised (\f(CW\*(C`UC\*(C'\fR == unchecked). Their behaviour
-is undefined when the default loop has not been initialised by a previous
-execution of \f(CW\*(C`EV_DEFAULT\*(C'\fR, \f(CW\*(C`EV_DEFAULT_\*(C'\fR or \f(CW\*(C`ev_default_init (...)\*(C'\fR.
-.Sp
-It is often prudent to use \f(CW\*(C`EV_DEFAULT\*(C'\fR when initialising the first
-watcher in a function but use \f(CW\*(C`EV_DEFAULT_UC\*(C'\fR afterwards.
-.PP
-Example: Declare and initialise a check watcher, utilising the above
-macros so it will work regardless of whether multiple loops are supported
-or not.
-.PP
-.Vb 5
-\& static void
-\& check_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& ev_check_stop (EV_A_ w);
-\& }
-\&
-\& ev_check check;
-\& ev_check_init (&check, check_cb);
-\& ev_check_start (EV_DEFAULT_ &check);
-\& ev_loop (EV_DEFAULT_ 0);
-.Ve
-.SH "EMBEDDING"
-.IX Header "EMBEDDING"
-Libev can (and often is) directly embedded into host
-applications. Examples of applications that embed it include the Deliantra
-Game Server, the \s-1EV\s0 perl module, the \s-1GNU\s0 Virtual Private Ethernet (gvpe)
-and rxvt-unicode.
-.PP
-The goal is to enable you to just copy the necessary files into your
-source directory without having to change even a single line in them, so
-you can easily upgrade by simply copying (or having a checked-out copy of
-libev somewhere in your source tree).
-.Sh "\s-1FILESETS\s0"
-.IX Subsection "FILESETS"
-Depending on what features you need you need to include one or more sets of files
-in your app.
-.PP
-\fI\s-1CORE\s0 \s-1EVENT\s0 \s-1LOOP\s0\fR
-.IX Subsection "CORE EVENT LOOP"
-.PP
-To include only the libev core (all the \f(CW\*(C`ev_*\*(C'\fR functions), with manual
-configuration (no autoconf):
-.PP
-.Vb 2
-\& #define EV_STANDALONE 1
-\& #include "ev.c"
-.Ve
-.PP
-This will automatically include \fIev.h\fR, too, and should be done in a
-single C source file only to provide the function implementations. To use
-it, do the same for \fIev.h\fR in all files wishing to use this \s-1API\s0 (best
-done by writing a wrapper around \fIev.h\fR that you can include instead and
-where you can put other configuration options):
-.PP
-.Vb 2
-\& #define EV_STANDALONE 1
-\& #include "ev.h"
-.Ve
-.PP
-Both header files and implementation files can be compiled with a \*(C+
-compiler (at least, thats a stated goal, and breakage will be treated
-as a bug).
-.PP
-You need the following files in your source tree, or in a directory
-in your include path (e.g. in libev/ when using \-Ilibev):
-.PP
-.Vb 4
-\& ev.h
-\& ev.c
-\& ev_vars.h
-\& ev_wrap.h
-\&
-\& ev_win32.c required on win32 platforms only
-\&
-\& ev_select.c only when select backend is enabled (which is enabled by default)
-\& ev_poll.c only when poll backend is enabled (disabled by default)
-\& ev_epoll.c only when the epoll backend is enabled (disabled by default)
-\& ev_kqueue.c only when the kqueue backend is enabled (disabled by default)
-\& ev_port.c only when the solaris port backend is enabled (disabled by default)
-.Ve
-.PP
-\&\fIev.c\fR includes the backend files directly when enabled, so you only need
-to compile this single file.
-.PP
-\fI\s-1LIBEVENT\s0 \s-1COMPATIBILITY\s0 \s-1API\s0\fR
-.IX Subsection "LIBEVENT COMPATIBILITY API"
-.PP
-To include the libevent compatibility \s-1API\s0, also include:
-.PP
-.Vb 1
-\& #include "event.c"
-.Ve
-.PP
-in the file including \fIev.c\fR, and:
-.PP
-.Vb 1
-\& #include "event.h"
-.Ve
-.PP
-in the files that want to use the libevent \s-1API\s0. This also includes \fIev.h\fR.
-.PP
-You need the following additional files for this:
-.PP
-.Vb 2
-\& event.h
-\& event.c
-.Ve
-.PP
-\fI\s-1AUTOCONF\s0 \s-1SUPPORT\s0\fR
-.IX Subsection "AUTOCONF SUPPORT"
-.PP
-Instead of using \f(CW\*(C`EV_STANDALONE=1\*(C'\fR and providing your config in
-whatever way you want, you can also \f(CW\*(C`m4_include([libev.m4])\*(C'\fR in your
-\&\fIconfigure.ac\fR and leave \f(CW\*(C`EV_STANDALONE\*(C'\fR undefined. \fIev.c\fR will then
-include \fIconfig.h\fR and configure itself accordingly.
-.PP
-For this of course you need the m4 file:
-.PP
-.Vb 1
-\& libev.m4
-.Ve
-.Sh "\s-1PREPROCESSOR\s0 \s-1SYMBOLS/MACROS\s0"
-.IX Subsection "PREPROCESSOR SYMBOLS/MACROS"
-Libev can be configured via a variety of preprocessor symbols you have to
-define before including any of its files. The default in the absense of
-autoconf is noted for every option.
-.IP "\s-1EV_STANDALONE\s0" 4
-.IX Item "EV_STANDALONE"
-Must always be \f(CW1\fR if you do not use autoconf configuration, which
-keeps libev from including \fIconfig.h\fR, and it also defines dummy
-implementations for some libevent functions (such as logging, which is not
-supported). It will also not define any of the structs usually found in
-\&\fIevent.h\fR that are not directly supported by the libev core alone.
-.IP "\s-1EV_USE_MONOTONIC\s0" 4
-.IX Item "EV_USE_MONOTONIC"
-If defined to be \f(CW1\fR, libev will try to detect the availability of the
-monotonic clock option at both compiletime and runtime. Otherwise no use
-of the monotonic clock option will be attempted. If you enable this, you
-usually have to link against librt or something similar. Enabling it when
-the functionality isn't available is safe, though, although you have
-to make sure you link against any libraries where the \f(CW\*(C`clock_gettime\*(C'\fR
-function is hiding in (often \fI\-lrt\fR).
-.IP "\s-1EV_USE_REALTIME\s0" 4
-.IX Item "EV_USE_REALTIME"
-If defined to be \f(CW1\fR, libev will try to detect the availability of the
-realtime clock option at compiletime (and assume its availability at
-runtime if successful). Otherwise no use of the realtime clock option will
-be attempted. This effectively replaces \f(CW\*(C`gettimeofday\*(C'\fR by \f(CW\*(C`clock_get
-(CLOCK_REALTIME, ...)\*(C'\fR and will not normally affect correctness. See the
-note about libraries in the description of \f(CW\*(C`EV_USE_MONOTONIC\*(C'\fR, though.
-.IP "\s-1EV_USE_NANOSLEEP\s0" 4
-.IX Item "EV_USE_NANOSLEEP"
-If defined to be \f(CW1\fR, libev will assume that \f(CW\*(C`nanosleep ()\*(C'\fR is available
-and will use it for delays. Otherwise it will use \f(CW\*(C`select ()\*(C'\fR.
-.IP "\s-1EV_USE_EVENTFD\s0" 4
-.IX Item "EV_USE_EVENTFD"
-If defined to be \f(CW1\fR, then libev will assume that \f(CW\*(C`eventfd ()\*(C'\fR is
-available and will probe for kernel support at runtime. This will improve
-\&\f(CW\*(C`ev_signal\*(C'\fR and \f(CW\*(C`ev_async\*(C'\fR performance and reduce resource consumption.
-If undefined, it will be enabled if the headers indicate GNU/Linux + Glibc
-2.7 or newer, otherwise disabled.
-.IP "\s-1EV_USE_SELECT\s0" 4
-.IX Item "EV_USE_SELECT"
-If undefined or defined to be \f(CW1\fR, libev will compile in support for the
-\&\f(CW\*(C`select\*(C'\fR(2) backend. No attempt at autodetection will be done: if no
-other method takes over, select will be it. Otherwise the select backend
-will not be compiled in.
-.IP "\s-1EV_SELECT_USE_FD_SET\s0" 4
-.IX Item "EV_SELECT_USE_FD_SET"
-If defined to \f(CW1\fR, then the select backend will use the system \f(CW\*(C`fd_set\*(C'\fR
-structure. This is useful if libev doesn't compile due to a missing
-\&\f(CW\*(C`NFDBITS\*(C'\fR or \f(CW\*(C`fd_mask\*(C'\fR definition or it misguesses the bitset layout on
-exotic systems. This usually limits the range of file descriptors to some
-low limit such as 1024 or might have other limitations (winsocket only
-allows 64 sockets). The \f(CW\*(C`FD_SETSIZE\*(C'\fR macro, set before compilation, might
-influence the size of the \f(CW\*(C`fd_set\*(C'\fR used.
-.IP "\s-1EV_SELECT_IS_WINSOCKET\s0" 4
-.IX Item "EV_SELECT_IS_WINSOCKET"
-When defined to \f(CW1\fR, the select backend will assume that
-select/socket/connect etc. don't understand file descriptors but
-wants osf handles on win32 (this is the case when the select to
-be used is the winsock select). This means that it will call
-\&\f(CW\*(C`_get_osfhandle\*(C'\fR on the fd to convert it to an \s-1OS\s0 handle. Otherwise,
-it is assumed that all these functions actually work on fds, even
-on win32. Should not be defined on non\-win32 platforms.
-.IP "\s-1EV_FD_TO_WIN32_HANDLE\s0" 4
-.IX Item "EV_FD_TO_WIN32_HANDLE"
-If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR is enabled, then libev needs a way to map
-file descriptors to socket handles. When not defining this symbol (the
-default), then libev will call \f(CW\*(C`_get_osfhandle\*(C'\fR, which is usually
-correct. In some cases, programs use their own file descriptor management,
-in which case they can provide this function to map fds to socket handles.
-.IP "\s-1EV_USE_POLL\s0" 4
-.IX Item "EV_USE_POLL"
-If defined to be \f(CW1\fR, libev will compile in support for the \f(CW\*(C`poll\*(C'\fR(2)
-backend. Otherwise it will be enabled on non\-win32 platforms. It
-takes precedence over select.
-.IP "\s-1EV_USE_EPOLL\s0" 4
-.IX Item "EV_USE_EPOLL"
-If defined to be \f(CW1\fR, libev will compile in support for the Linux
-\&\f(CW\*(C`epoll\*(C'\fR(7) backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for GNU/Linux systems. If undefined, it will be enabled if the
-headers indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-.IP "\s-1EV_USE_KQUEUE\s0" 4
-.IX Item "EV_USE_KQUEUE"
-If defined to be \f(CW1\fR, libev will compile in support for the \s-1BSD\s0 style
-\&\f(CW\*(C`kqueue\*(C'\fR(2) backend. Its actual availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for \s-1BSD\s0 and BSD-like systems, although on most BSDs kqueue only
-supports some types of fds correctly (the only platform we found that
-supports ptys for example was NetBSD), so kqueue might be compiled in, but
-not be used unless explicitly requested. The best way to use it is to find
-out whether kqueue supports your type of fd properly and use an embedded
-kqueue loop.
-.IP "\s-1EV_USE_PORT\s0" 4
-.IX Item "EV_USE_PORT"
-If defined to be \f(CW1\fR, libev will compile in support for the Solaris
-10 port style backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for Solaris 10 systems.
-.IP "\s-1EV_USE_DEVPOLL\s0" 4
-.IX Item "EV_USE_DEVPOLL"
-reserved for future expansion, works like the \s-1USE\s0 symbols above.
-.IP "\s-1EV_USE_INOTIFY\s0" 4
-.IX Item "EV_USE_INOTIFY"
-If defined to be \f(CW1\fR, libev will compile in support for the Linux inotify
-interface to speed up \f(CW\*(C`ev_stat\*(C'\fR watchers. Its actual availability will
-be detected at runtime. If undefined, it will be enabled if the headers
-indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-.IP "\s-1EV_ATOMIC_T\s0" 4
-.IX Item "EV_ATOMIC_T"
-Libev requires an integer type (suitable for storing \f(CW0\fR or \f(CW1\fR) whose
-access is atomic with respect to other threads or signal contexts. No such
-type is easily found in the C language, so you can provide your own type
-that you know is safe for your purposes. It is used both for signal handler \*(L"locking\*(R"
-as well as for signal and thread safety in \f(CW\*(C`ev_async\*(C'\fR watchers.
-.Sp
-In the absense of this define, libev will use \f(CW\*(C`sig_atomic_t volatile\*(C'\fR
-(from \fIsignal.h\fR), which is usually good enough on most platforms.
-.IP "\s-1EV_H\s0" 4
-.IX Item "EV_H"
-The name of the \fIev.h\fR header file used to include it. The default if
-undefined is \f(CW"ev.h"\fR in \fIevent.h\fR, \fIev.c\fR and \fIev++.h\fR. This can be
-used to virtually rename the \fIev.h\fR header file in case of conflicts.
-.IP "\s-1EV_CONFIG_H\s0" 4
-.IX Item "EV_CONFIG_H"
-If \f(CW\*(C`EV_STANDALONE\*(C'\fR isn't \f(CW1\fR, this variable can be used to override
-\&\fIev.c\fR's idea of where to find the \fIconfig.h\fR file, similarly to
-\&\f(CW\*(C`EV_H\*(C'\fR, above.
-.IP "\s-1EV_EVENT_H\s0" 4
-.IX Item "EV_EVENT_H"
-Similarly to \f(CW\*(C`EV_H\*(C'\fR, this macro can be used to override \fIevent.c\fR's idea
-of how the \fIevent.h\fR header can be found, the default is \f(CW"event.h"\fR.
-.IP "\s-1EV_PROTOTYPES\s0" 4
-.IX Item "EV_PROTOTYPES"
-If defined to be \f(CW0\fR, then \fIev.h\fR will not define any function
-prototypes, but still define all the structs and other symbols. This is
-occasionally useful if you want to provide your own wrapper functions
-around libev functions.
-.IP "\s-1EV_MULTIPLICITY\s0" 4
-.IX Item "EV_MULTIPLICITY"
-If undefined or defined to \f(CW1\fR, then all event-loop-specific functions
-will have the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument, and you can create
-additional independent event loops. Otherwise there will be no support
-for multiple event loops and there is no first event loop pointer
-argument. Instead, all functions act on the single default loop.
-.IP "\s-1EV_MINPRI\s0" 4
-.IX Item "EV_MINPRI"
-.PD 0
-.IP "\s-1EV_MAXPRI\s0" 4
-.IX Item "EV_MAXPRI"
-.PD
-The range of allowed priorities. \f(CW\*(C`EV_MINPRI\*(C'\fR must be smaller or equal to
-\&\f(CW\*(C`EV_MAXPRI\*(C'\fR, but otherwise there are no non-obvious limitations. You can
-provide for more priorities by overriding those symbols (usually defined
-to be \f(CW\*(C`\-2\*(C'\fR and \f(CW2\fR, respectively).
-.Sp
-When doing priority-based operations, libev usually has to linearly search
-all the priorities, so having many of them (hundreds) uses a lot of space
-and time, so using the defaults of five priorities (\-2 .. +2) is usually
-fine.
-.Sp
-If your embedding app does not need any priorities, defining these both to
-\&\f(CW0\fR will save some memory and cpu.
-.IP "\s-1EV_PERIODIC_ENABLE\s0" 4
-.IX Item "EV_PERIODIC_ENABLE"
-If undefined or defined to be \f(CW1\fR, then periodic timers are supported. If
-defined to be \f(CW0\fR, then they are not. Disabling them saves a few kB of
-code.
-.IP "\s-1EV_IDLE_ENABLE\s0" 4
-.IX Item "EV_IDLE_ENABLE"
-If undefined or defined to be \f(CW1\fR, then idle watchers are supported. If
-defined to be \f(CW0\fR, then they are not. Disabling them saves a few kB of
-code.
-.IP "\s-1EV_EMBED_ENABLE\s0" 4
-.IX Item "EV_EMBED_ENABLE"
-If undefined or defined to be \f(CW1\fR, then embed watchers are supported. If
-defined to be \f(CW0\fR, then they are not.
-.IP "\s-1EV_STAT_ENABLE\s0" 4
-.IX Item "EV_STAT_ENABLE"
-If undefined or defined to be \f(CW1\fR, then stat watchers are supported. If
-defined to be \f(CW0\fR, then they are not.
-.IP "\s-1EV_FORK_ENABLE\s0" 4
-.IX Item "EV_FORK_ENABLE"
-If undefined or defined to be \f(CW1\fR, then fork watchers are supported. If
-defined to be \f(CW0\fR, then they are not.
-.IP "\s-1EV_ASYNC_ENABLE\s0" 4
-.IX Item "EV_ASYNC_ENABLE"
-If undefined or defined to be \f(CW1\fR, then async watchers are supported. If
-defined to be \f(CW0\fR, then they are not.
-.IP "\s-1EV_MINIMAL\s0" 4
-.IX Item "EV_MINIMAL"
-If you need to shave off some kilobytes of code at the expense of some
-speed, define this symbol to \f(CW1\fR. Currently this is used to override some
-inlining decisions, saves roughly 30% codesize of amd64. It also selects a
-much smaller 2\-heap for timer management over the default 4\-heap.
-.IP "\s-1EV_PID_HASHSIZE\s0" 4
-.IX Item "EV_PID_HASHSIZE"
-\&\f(CW\*(C`ev_child\*(C'\fR watchers use a small hash table to distribute workload by
-pid. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_MINIMAL\*(C'\fR), usually more
-than enough. If you need to manage thousands of children you might want to
-increase this value (\fImust\fR be a power of two).
-.IP "\s-1EV_INOTIFY_HASHSIZE\s0" 4
-.IX Item "EV_INOTIFY_HASHSIZE"
-\&\f(CW\*(C`ev_stat\*(C'\fR watchers use a small hash table to distribute workload by
-inotify watch id. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_MINIMAL\*(C'\fR),
-usually more than enough. If you need to manage thousands of \f(CW\*(C`ev_stat\*(C'\fR
-watchers you might want to increase this value (\fImust\fR be a power of
-two).
-.IP "\s-1EV_USE_4HEAP\s0" 4
-.IX Item "EV_USE_4HEAP"
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heap, libev uses a 4\-heap when this symbol is defined
-to \f(CW1\fR. The 4\-heap uses more complicated (longer) code but has a
-noticable after performance with many (thousands) of watchers.
-.Sp
-The default is \f(CW1\fR unless \f(CW\*(C`EV_MINIMAL\*(C'\fR is set in which case it is \f(CW0\fR
-(disabled).
-.IP "\s-1EV_HEAP_CACHE_AT\s0" 4
-.IX Item "EV_HEAP_CACHE_AT"
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heap, libev can cache the timestamp (\fIat\fR) within
-the heap structure (selected by defining \f(CW\*(C`EV_HEAP_CACHE_AT\*(C'\fR to \f(CW1\fR),
-which uses 8\-12 bytes more per watcher and a few hundred bytes more code,
-but avoids random read accesses on heap changes. This noticably improves
-performance noticably with with many (hundreds) of watchers.
-.Sp
-The default is \f(CW1\fR unless \f(CW\*(C`EV_MINIMAL\*(C'\fR is set in which case it is \f(CW0\fR
-(disabled).
-.IP "\s-1EV_COMMON\s0" 4
-.IX Item "EV_COMMON"
-By default, all watchers have a \f(CW\*(C`void *data\*(C'\fR member. By redefining
-this macro to a something else you can include more and other types of
-members. You have to define it each time you include one of the files,
-though, and it must be identical each time.
-.Sp
-For example, the perl \s-1EV\s0 module uses something like this:
-.Sp
-.Vb 3
-\& #define EV_COMMON \e
-\& SV *self; /* contains this struct */ \e
-\& SV *cb_sv, *fh /* note no trailing ";" */
-.Ve
-.IP "\s-1EV_CB_DECLARE\s0 (type)" 4
-.IX Item "EV_CB_DECLARE (type)"
-.PD 0
-.IP "\s-1EV_CB_INVOKE\s0 (watcher, revents)" 4
-.IX Item "EV_CB_INVOKE (watcher, revents)"
-.IP "ev_set_cb (ev, cb)" 4
-.IX Item "ev_set_cb (ev, cb)"
-.PD
-Can be used to change the callback member declaration in each watcher,
-and the way callbacks are invoked and set. Must expand to a struct member
-definition and a statement, respectively. See the \fIev.h\fR header file for
-their default definitions. One possible use for overriding these is to
-avoid the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument in all cases, or to use
-method calls instead of plain function calls in \*(C+.
-.Sh "\s-1EXPORTED\s0 \s-1API\s0 \s-1SYMBOLS\s0"
-.IX Subsection "EXPORTED API SYMBOLS"
-If you need to re-export the \s-1API\s0 (e.g. via a dll) and you need a list of
-exported symbols, you can use the provided \fISymbol.*\fR files which list
-all public symbols, one per line:
-.PP
-.Vb 2
-\& Symbols.ev for libev proper
-\& Symbols.event for the libevent emulation
-.Ve
-.PP
-This can also be used to rename all public symbols to avoid clashes with
-multiple versions of libev linked together (which is obviously bad in
-itself, but sometimes it is inconvinient to avoid this).
-.PP
-A sed command like this will create wrapper \f(CW\*(C`#define\*(C'\fR's that you need to
-include before including \fIev.h\fR:
-.PP
-.Vb 1
-\& <Symbols.ev sed \-e "s/.*/#define & myprefix_&/" >wrap.h
-.Ve
-.PP
-This would create a file \fIwrap.h\fR which essentially looks like this:
-.PP
-.Vb 4
-\& #define ev_backend myprefix_ev_backend
-\& #define ev_check_start myprefix_ev_check_start
-\& #define ev_check_stop myprefix_ev_check_stop
-\& ...
-.Ve
-.Sh "\s-1EXAMPLES\s0"
-.IX Subsection "EXAMPLES"
-For a real-world example of a program the includes libev
-verbatim, you can have a look at the \s-1EV\s0 perl module
-(<http://software.schmorp.de/pkg/EV.html>). It has the libev files in
-the \fIlibev/\fR subdirectory and includes them in the \fI\s-1EV/EVAPI\s0.h\fR (public
-interface) and \fI\s-1EV\s0.xs\fR (implementation) files. Only the \fI\s-1EV\s0.xs\fR file
-will be compiled. It is pretty complex because it provides its own header
-file.
-.PP
-The usage in rxvt-unicode is simpler. It has a \fIev_cpp.h\fR header file
-that everybody includes and which overrides some configure choices:
-.PP
-.Vb 9
-\& #define EV_MINIMAL 1
-\& #define EV_USE_POLL 0
-\& #define EV_MULTIPLICITY 0
-\& #define EV_PERIODIC_ENABLE 0
-\& #define EV_STAT_ENABLE 0
-\& #define EV_FORK_ENABLE 0
-\& #define EV_CONFIG_H <config.h>
-\& #define EV_MINPRI 0
-\& #define EV_MAXPRI 0
-\&
-\& #include "ev++.h"
-.Ve
-.PP
-And a \fIev_cpp.C\fR implementation file that contains libev proper and is compiled:
-.PP
-.Vb 2
-\& #include "ev_cpp.h"
-\& #include "ev.c"
-.Ve
-.SH "THREADS AND COROUTINES"
-.IX Header "THREADS AND COROUTINES"
-.Sh "\s-1THREADS\s0"
-.IX Subsection "THREADS"
-Libev itself is completely threadsafe, but it uses no locking. This
-means that you can use as many loops as you want in parallel, as long as
-only one thread ever calls into one libev function with the same loop
-parameter.
-.PP
-Or put differently: calls with different loop parameters can be done in
-parallel from multiple threads, calls with the same loop parameter must be
-done serially (but can be done from different threads, as long as only one
-thread ever is inside a call at any point in time, e.g. by using a mutex
-per loop).
-.PP
-If you want to know which design is best for your problem, then I cannot
-help you but by giving some generic advice:
-.IP "\(bu" 4
-most applications have a main thread: use the default libev loop
-in that thread, or create a seperate thread running only the default loop.
-.Sp
-This helps integrating other libraries or software modules that use libev
-themselves and don't care/know about threading.
-.IP "\(bu" 4
-one loop per thread is usually a good model.
-.Sp
-Doing this is almost never wrong, sometimes a better-performance model
-exists, but it is always a good start.
-.IP "\(bu" 4
-other models exist, such as the leader/follower pattern, where one
-loop is handed through multiple threads in a kind of round-robbin fashion.
-.Sp
-Chosing a model is hard \- look around, learn, know that usually you cna do
-better than you currently do :\-)
-.IP "\(bu" 4
-often you need to talk to some other thread which blocks in the
-event loop \- \f(CW\*(C`ev_async\*(C'\fR watchers can be used to wake them up from other
-threads safely (or from signal contexts...).
-.Sh "\s-1COROUTINES\s0"
-.IX Subsection "COROUTINES"
-Libev is much more accomodating to coroutines (\*(L"cooperative threads\*(R"):
-libev fully supports nesting calls to it's functions from different
-coroutines (e.g. you can call \f(CW\*(C`ev_loop\*(C'\fR on the same loop from two
-different coroutines and switch freely between both coroutines running the
-loop, as long as you don't confuse yourself). The only exception is that
-you must not do this from \f(CW\*(C`ev_periodic\*(C'\fR reschedule callbacks.
-.PP
-Care has been invested into making sure that libev does not keep local
-state inside \f(CW\*(C`ev_loop\*(C'\fR, and other calls do not usually allow coroutine
-switches.
-.SH "COMPLEXITIES"
-.IX Header "COMPLEXITIES"
-In this section the complexities of (many of) the algorithms used inside
-libev will be explained. For complexity discussions about backends see the
-documentation for \f(CW\*(C`ev_default_init\*(C'\fR.
-.PP
-All of the following are about amortised time: If an array needs to be
-extended, libev needs to realloc and move the whole array, but this
-happens asymptotically never with higher number of elements, so O(1) might
-mean it might do a lengthy realloc operation in rare cases, but on average
-it is much faster and asymptotically approaches constant time.
-.IP "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)" 4
-.IX Item "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)"
-This means that, when you have a watcher that triggers in one hour and
-there are 100 watchers that would trigger before that then inserting will
-have to skip roughly seven (\f(CW\*(C`ld 100\*(C'\fR) of these watchers.
-.IP "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)" 4
-.IX Item "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)"
-That means that changing a timer costs less than removing/adding them
-as only the relative motion in the event queue has to be paid for.
-.IP "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)" 4
-.IX Item "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)"
-These just add the watcher into an array or at the head of a list.
-.IP "Stopping check/prepare/idle/fork/async watchers: O(1)" 4
-.IX Item "Stopping check/prepare/idle/fork/async watchers: O(1)"
-.PD 0
-.IP "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % \s-1EV_PID_HASHSIZE\s0))" 4
-.IX Item "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % EV_PID_HASHSIZE))"
-.PD
-These watchers are stored in lists then need to be walked to find the
-correct watcher to remove. The lists are usually short (you don't usually
-have many watchers waiting for the same fd or signal).
-.IP "Finding the next timer in each loop iteration: O(1)" 4
-.IX Item "Finding the next timer in each loop iteration: O(1)"
-By virtue of using a binary or 4\-heap, the next timer is always found at a
-fixed position in the storage array.
-.IP "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)" 4
-.IX Item "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)"
-A change means an I/O watcher gets started or stopped, which requires
-libev to recalculate its status (and possibly tell the kernel, depending
-on backend and wether \f(CW\*(C`ev_io_set\*(C'\fR was used).
-.IP "Activating one watcher (putting it into the pending state): O(1)" 4
-.IX Item "Activating one watcher (putting it into the pending state): O(1)"
-.PD 0
-.IP "Priority handling: O(number_of_priorities)" 4
-.IX Item "Priority handling: O(number_of_priorities)"
-.PD
-Priorities are implemented by allocating some space for each
-priority. When doing priority-based operations, libev usually has to
-linearly search all the priorities, but starting/stopping and activating
-watchers becomes O(1) w.r.t. priority handling.
-.IP "Sending an ev_async: O(1)" 4
-.IX Item "Sending an ev_async: O(1)"
-.PD 0
-.IP "Processing ev_async_send: O(number_of_async_watchers)" 4
-.IX Item "Processing ev_async_send: O(number_of_async_watchers)"
-.IP "Processing signals: O(max_signal_number)" 4
-.IX Item "Processing signals: O(max_signal_number)"
-.PD
-Sending involves a syscall \fIiff\fR there were no other \f(CW\*(C`ev_async_send\*(C'\fR
-calls in the current loop iteration. Checking for async and signal events
-involves iterating over all running async watchers or all signal numbers.
-.SH "Win32 platform limitations and workarounds"
-.IX Header "Win32 platform limitations and workarounds"
-Win32 doesn't support any of the standards (e.g. \s-1POSIX\s0) that libev
-requires, and its I/O model is fundamentally incompatible with the \s-1POSIX\s0
-model. Libev still offers limited functionality on this platform in
-the form of the \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR backend, and only supports socket
-descriptors. This only applies when using Win32 natively, not when using
-e.g. cygwin.
-.PP
-Lifting these limitations would basically require the full
-re-implementation of the I/O system. If you are into these kinds of
-things, then note that glib does exactly that for you in a very portable
-way (note also that glib is the slowest event library known to man).
-.PP
-There is no supported compilation method available on windows except
-embedding it into other applications.
-.PP
-Due to the many, low, and arbitrary limits on the win32 platform and
-the abysmal performance of winsockets, using a large number of sockets
-is not recommended (and not reasonable). If your program needs to use
-more than a hundred or so sockets, then likely it needs to use a totally
-different implementation for windows, as libev offers the \s-1POSIX\s0 readyness
-notification model, which cannot be implemented efficiently on windows
-(microsoft monopoly games).
-.IP "The winsocket select function" 4
-.IX Item "The winsocket select function"
-The winsocket \f(CW\*(C`select\*(C'\fR function doesn't follow \s-1POSIX\s0 in that it requires
-socket \fIhandles\fR and not socket \fIfile descriptors\fR. This makes select
-very inefficient, and also requires a mapping from file descriptors
-to socket handles. See the discussion of the \f(CW\*(C`EV_SELECT_USE_FD_SET\*(C'\fR,
-\&\f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR and \f(CW\*(C`EV_FD_TO_WIN32_HANDLE\*(C'\fR preprocessor
-symbols for more info.
-.Sp
-The configuration for a \*(L"naked\*(R" win32 using the microsoft runtime
-libraries and raw winsocket select is:
-.Sp
-.Vb 2
-\& #define EV_USE_SELECT 1
-\& #define EV_SELECT_IS_WINSOCKET 1 /* forces EV_SELECT_USE_FD_SET, too */
-.Ve
-.Sp
-Note that winsockets handling of fd sets is O(n), so you can easily get a
-complexity in the O(nA\*^X) range when using win32.
-.IP "Limited number of file descriptors" 4
-.IX Item "Limited number of file descriptors"
-Windows has numerous arbitrary (and low) limits on things.
-.Sp
-Early versions of winsocket's select only supported waiting for a maximum
-of \f(CW64\fR handles (probably owning to the fact that all windows kernels
-can only wait for \f(CW64\fR things at the same time internally; microsoft
-recommends spawning a chain of threads and wait for 63 handles and the
-previous thread in each. Great).
-.Sp
-Newer versions support more handles, but you need to define \f(CW\*(C`FD_SETSIZE\*(C'\fR
-to some high number (e.g. \f(CW2048\fR) before compiling the winsocket select
-call (which might be in libev or elsewhere, for example, perl does its own
-select emulation on windows).
-.Sp
-Another limit is the number of file descriptors in the microsoft runtime
-libraries, which by default is \f(CW64\fR (there must be a hidden \fI64\fR fetish
-or something like this inside microsoft). You can increase this by calling
-\&\f(CW\*(C`_setmaxstdio\*(C'\fR, which can increase this limit to \f(CW2048\fR (another
-arbitrary limit), but is broken in many versions of the microsoft runtime
-libraries.
-.Sp
-This might get you to about \f(CW512\fR or \f(CW2048\fR sockets (depending on
-windows version and/or the phase of the moon). To get more, you need to
-wrap all I/O functions and provide your own fd management, but the cost of
-calling select (O(nA\*^X)) will likely make this unworkable.
-.SH "PORTABILITY REQUIREMENTS"
-.IX Header "PORTABILITY REQUIREMENTS"
-In addition to a working ISO-C implementation, libev relies on a few
-additional extensions:
-.ie n .IP """sig_atomic_t volatile"" must be thread-atomic as well" 4
-.el .IP "\f(CWsig_atomic_t volatile\fR must be thread-atomic as well" 4
-.IX Item "sig_atomic_t volatile must be thread-atomic as well"
-The type \f(CW\*(C`sig_atomic_t volatile\*(C'\fR (or whatever is defined as
-\&\f(CW\*(C`EV_ATOMIC_T\*(C'\fR) must be atomic w.r.t. accesses from different
-threads. This is not part of the specification for \f(CW\*(C`sig_atomic_t\*(C'\fR, but is
-believed to be sufficiently portable.
-.ie n .IP """sigprocmask"" must work in a threaded environment" 4
-.el .IP "\f(CWsigprocmask\fR must work in a threaded environment" 4
-.IX Item "sigprocmask must work in a threaded environment"
-Libev uses \f(CW\*(C`sigprocmask\*(C'\fR to temporarily block signals. This is not
-allowed in a threaded program (\f(CW\*(C`pthread_sigmask\*(C'\fR has to be used). Typical
-pthread implementations will either allow \f(CW\*(C`sigprocmask\*(C'\fR in the \*(L"main
-thread\*(R" or will block signals process-wide, both behaviours would
-be compatible with libev. Interaction between \f(CW\*(C`sigprocmask\*(C'\fR and
-\&\f(CW\*(C`pthread_sigmask\*(C'\fR could complicate things, however.
-.Sp
-The most portable way to handle signals is to block signals in all threads
-except the initial one, and run the default loop in the initial thread as
-well.
-.ie n .IP """long"" must be large enough for common memory allocation sizes" 4
-.el .IP "\f(CWlong\fR must be large enough for common memory allocation sizes" 4
-.IX Item "long must be large enough for common memory allocation sizes"
-To improve portability and simplify using libev, libev uses \f(CW\*(C`long\*(C'\fR
-internally instead of \f(CW\*(C`size_t\*(C'\fR when allocating its data structures. On
-non-POSIX systems (Microsoft...) this might be unexpectedly low, but
-is still at least 31 bits everywhere, which is enough for hundreds of
-millions of watchers.
-.ie n .IP """double"" must hold a time value in seconds with enough accuracy" 4
-.el .IP "\f(CWdouble\fR must hold a time value in seconds with enough accuracy" 4
-.IX Item "double must hold a time value in seconds with enough accuracy"
-The type \f(CW\*(C`double\*(C'\fR is used to represent timestamps. It is required to
-have at least 51 bits of mantissa (and 9 bits of exponent), which is good
-enough for at least into the year 4000. This requirement is fulfilled by
-implementations implementing \s-1IEEE\s0 754 (basically all existing ones).
-.PP
-If you know of other additional requirements drop me a note.
-.SH "AUTHOR"
-.IX Header "AUTHOR"
-Marc Lehmann <libev@schmorp.de>.
-.SH "POD ERRORS"
-.IX Header "POD ERRORS"
-Hey! \fBThe above document had some coding errors, which are explained below:\fR
-.IP "Around line 3052:" 4
-.IX Item "Around line 3052:"
-You forgot a '=back' before '=head2'
+++ /dev/null
-/*
- * libeio implementation
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libeio@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include "eio.h"
-
-#ifdef EIO_STACKSIZE
-# define XTHREAD_STACKSIZE EIO_STACKSIZE
-#endif
-
-// For statically-linked pthreads-w32, use:
-// #ifdef _WIN32
-// # define PTW32_STATIC_LIB 1
-// #endif
-#include "xthread.h"
-
-#include <errno.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <assert.h>
-
-#ifndef _WIN32
-#include <sys/statvfs.h>
-#endif
-
-#ifndef EIO_FINISH
-# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0
-#endif
-
-#ifndef EIO_DESTROY
-# define EIO_DESTROY(req) do { if ((req)->destroy) (req)->destroy (req); } while (0)
-#endif
-
-#ifndef EIO_FEED
-# define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0)
-#endif
-
-#ifdef _WIN32
-
-# include <errno.h>
-# include <sys/time.h>
-# include <unistd.h>
-# include <utime.h>
-# include <signal.h>
-# include <dirent.h>
-# include <windows.h>
-
-# define ENOTSOCK WSAENOTSOCK
-# define EOPNOTSUPP WSAEOPNOTSUPP
-# define ECANCELED 140
-
-# ifndef EIO_STRUCT_DIRENT
-# define EIO_STRUCT_DIRENT struct dirent
-# endif
-
-#else
-
-# ifdef EIO_CONFIG_H
-# include EIO_CONFIG_H
-# else
-# include "config.h"
-# endif
-
-# include <sys/time.h>
-# include <sys/select.h>
-# include <unistd.h>
-# include <utime.h>
-# include <signal.h>
-# include <dirent.h>
-
-#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
-# include <sys/mman.h>
-#endif
-
-/* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */
-# if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
-# define _DIRENT_HAVE_D_TYPE /* sigh */
-# define D_INO(de) (de)->d_fileno
-# define D_NAMLEN(de) (de)->d_namlen
-# elif __linux || defined d_ino || _XOPEN_SOURCE >= 600
-# define D_INO(de) (de)->d_ino
-# endif
-
-#ifdef _D_EXACT_NAMLEN
-# undef D_NAMLEN
-# define D_NAMLEN(de) _D_EXACT_NAMLEN (de)
-#endif
-
-# ifdef _DIRENT_HAVE_D_TYPE
-# define D_TYPE(de) (de)->d_type
-# endif
-
-# ifndef EIO_STRUCT_DIRENT
-# define EIO_STRUCT_DIRENT struct dirent
-# endif
-
-#endif
-
-#if HAVE_SENDFILE
-# if __linux
-# include <sys/sendfile.h>
-# elif __FreeBSD__ || defined __APPLE__
-# include <sys/socket.h>
-# include <sys/uio.h>
-# elif __hpux
-# include <sys/socket.h>
-# elif __solaris
-# include <sys/sendfile.h>
-# else
-# error sendfile support requested but not available
-# endif
-#endif
-
-#ifndef D_TYPE
-# define D_TYPE(de) 0
-#endif
-#ifndef D_INO
-# define D_INO(de) 0
-#endif
-#ifndef D_NAMLEN
-# define D_NAMLEN(de) strlen ((de)->d_name)
-#endif
-
-/* number of seconds after which an idle threads exit */
-#define IDLE_TIMEOUT 10
-
-/* used for struct dirent, AIX doesn't provide it */
-#ifndef NAME_MAX
-# define NAME_MAX 4096
-#endif
-
-/* used for readlink etc. */
-#ifndef PATH_MAX
-# define PATH_MAX 4096
-#endif
-
-/* buffer size for various temporary buffers */
-#define EIO_BUFSIZE 65536
-
-#define dBUF \
- char *eio_buf; \
- ETP_WORKER_LOCK (self); \
- self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \
- ETP_WORKER_UNLOCK (self); \
- errno = ENOMEM; \
- if (!eio_buf) \
- return -1;
-
-#define EIO_TICKS ((1000000 + 1023) >> 10)
-
-/*****************************************************************************/
-
-#if __GNUC__ >= 3
-# define expect(expr,value) __builtin_expect ((expr),(value))
-#else
-# define expect(expr,value) (expr)
-#endif
-
-#define expect_false(expr) expect ((expr) != 0, 0)
-#define expect_true(expr) expect ((expr) != 0, 1)
-
-/*****************************************************************************/
-
-#define ETP_PRI_MIN EIO_PRI_MIN
-#define ETP_PRI_MAX EIO_PRI_MAX
-
-struct etp_worker;
-
-#define ETP_REQ eio_req
-#define ETP_DESTROY(req) eio_destroy (req)
-static int eio_finish (eio_req *req);
-#define ETP_FINISH(req) eio_finish (req)
-static void eio_execute (struct etp_worker *self, eio_req *req);
-#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)
-
-#define ETP_WORKER_CLEAR(req) \
- if (wrk->dbuf) \
- { \
- free (wrk->dbuf); \
- wrk->dbuf = 0; \
- } \
- \
- if (wrk->dirp) \
- { \
- closedir (wrk->dirp); \
- wrk->dirp = 0; \
- }
-
-#define ETP_WORKER_COMMON \
- void *dbuf; \
- DIR *dirp;
-
-/*****************************************************************************/
-
-#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)
-
-/* calculate time difference in ~1/EIO_TICKS of a second */
-static int tvdiff (struct timeval *tv1, struct timeval *tv2)
-{
- return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS
- + ((tv2->tv_usec - tv1->tv_usec) >> 10);
-}
-
-static unsigned int started, idle, wanted = 4;
-
-static void (*want_poll_cb) (void);
-static void (*done_poll_cb) (void);
-
-static unsigned int max_poll_time; /* reslock */
-static unsigned int max_poll_reqs; /* reslock */
-
-static volatile unsigned int nreqs; /* reqlock */
-static volatile unsigned int nready; /* reqlock */
-static volatile unsigned int npending; /* reqlock */
-static volatile unsigned int max_idle = 4;
-
-static xmutex_t wrklock = X_MUTEX_INIT;
-static xmutex_t reslock = X_MUTEX_INIT;
-static xmutex_t reqlock = X_MUTEX_INIT;
-static xcond_t reqwait = X_COND_INIT;
-
-#if defined (__APPLE__)
-static xmutex_t apple_bug_writelock = X_MUTEX_INIT;
-#endif
-
-#if !HAVE_PREADWRITE
-/*
- * make our pread/pwrite emulation safe against themselves, but not against
- * normal read/write by using a mutex. slows down execution a lot,
- * but that's your problem, not mine.
- */
-static xmutex_t preadwritelock = X_MUTEX_INIT;
-#endif
-
-typedef struct etp_worker
-{
- /* locked by wrklock */
- struct etp_worker *prev, *next;
-
- xthread_t tid;
-
- /* locked by reslock, reqlock or wrklock */
- ETP_REQ *req; /* currently processed request */
-
- ETP_WORKER_COMMON
-} etp_worker;
-
-static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */
-
-#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
-#define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock)
-
-/* worker threads management */
-
-static void etp_worker_clear (etp_worker *wrk)
-{
- ETP_WORKER_CLEAR (wrk);
-}
-
-static void etp_worker_free (etp_worker *wrk)
-{
- wrk->next->prev = wrk->prev;
- wrk->prev->next = wrk->next;
-
- free (wrk);
-}
-
-static unsigned int etp_nreqs (void)
-{
- int retval;
- if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
- retval = nreqs;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
- return retval;
-}
-
-static unsigned int etp_nready (void)
-{
- unsigned int retval;
-
- if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
- retval = nready;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
-
- return retval;
-}
-
-static unsigned int etp_npending (void)
-{
- unsigned int retval;
-
- if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
- retval = npending;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
-
- return retval;
-}
-
-static unsigned int etp_nthreads (void)
-{
- unsigned int retval;
-
- if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
- retval = started;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
-
- return retval;
-}
-
-/*
- * a somewhat faster data structure might be nice, but
- * with 8 priorities this actually needs <20 insns
- * per shift, the most expensive operation.
- */
-typedef struct {
- ETP_REQ *qs[ETP_NUM_PRI], *qe[ETP_NUM_PRI]; /* qstart, qend */
- int size;
-} etp_reqq;
-
-static etp_reqq req_queue;
-static etp_reqq res_queue;
-
-static int reqq_push (etp_reqq *q, ETP_REQ *req)
-{
- int pri = req->pri;
- req->next = 0;
-
- if (q->qe[pri])
- {
- q->qe[pri]->next = req;
- q->qe[pri] = req;
- }
- else
- q->qe[pri] = q->qs[pri] = req;
-
- return q->size++;
-}
-
-static ETP_REQ *reqq_shift (etp_reqq *q)
-{
- int pri;
-
- if (!q->size)
- return 0;
-
- --q->size;
-
- for (pri = ETP_NUM_PRI; pri--; )
- {
- eio_req *req = q->qs[pri];
-
- if (req)
- {
- if (!(q->qs[pri] = (eio_req *)req->next))
- q->qe[pri] = 0;
-
- return req;
- }
- }
-
- abort ();
-}
-
-static void etp_atfork_prepare (void)
-{
- X_LOCK (wrklock);
- X_LOCK (reqlock);
- X_LOCK (reslock);
-#if !HAVE_PREADWRITE
- X_LOCK (preadwritelock);
-#endif
-}
-
-static void etp_atfork_parent (void)
-{
-#if !HAVE_PREADWRITE
- X_UNLOCK (preadwritelock);
-#endif
- X_UNLOCK (reslock);
- X_UNLOCK (reqlock);
- X_UNLOCK (wrklock);
-}
-
-static void etp_atfork_child (void)
-{
- ETP_REQ *prv;
-
- while ((prv = reqq_shift (&req_queue)))
- ETP_DESTROY (prv);
-
- while ((prv = reqq_shift (&res_queue)))
- ETP_DESTROY (prv);
-
- while (wrk_first.next != &wrk_first)
- {
- etp_worker *wrk = wrk_first.next;
-
- if (wrk->req)
- ETP_DESTROY (wrk->req);
-
- etp_worker_clear (wrk);
- etp_worker_free (wrk);
- }
-
- started = 0;
- idle = 0;
- nreqs = 0;
- nready = 0;
- npending = 0;
-
- etp_atfork_parent ();
-}
-
-static void
-etp_once_init (void)
-{
- X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child);
-}
-
-static int
-etp_init (void (*want_poll)(void), void (*done_poll)(void))
-{
- static pthread_once_t doinit = PTHREAD_ONCE_INIT;
-
- pthread_once (&doinit, etp_once_init);
-
- want_poll_cb = want_poll;
- done_poll_cb = done_poll;
-
- return 0;
-}
-
-X_THREAD_PROC (etp_proc);
-
-static void etp_start_thread (void)
-{
- etp_worker *wrk = calloc (1, sizeof (etp_worker));
-
- /*TODO*/
- assert (("unable to allocate worker thread data", wrk));
-
- X_LOCK (wrklock);
-
- if (thread_create (&wrk->tid, etp_proc, (void *)wrk))
- {
- wrk->prev = &wrk_first;
- wrk->next = wrk_first.next;
- wrk_first.next->prev = wrk;
- wrk_first.next = wrk;
- ++started;
- }
- else
- free (wrk);
-
- X_UNLOCK (wrklock);
-}
-
-static void etp_maybe_start_thread (void)
-{
- if (expect_true (etp_nthreads () >= wanted))
- return;
-
- /* todo: maybe use idle here, but might be less exact */
- if (expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ()))
- return;
-
- etp_start_thread ();
-}
-
-static void etp_end_thread (void)
-{
- eio_req *req = calloc (1, sizeof (eio_req));
-
- req->type = -1;
- req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
-
- X_LOCK (reqlock);
- reqq_push (&req_queue, req);
- X_COND_SIGNAL (reqwait);
- X_UNLOCK (reqlock);
-
- X_LOCK (wrklock);
- --started;
- X_UNLOCK (wrklock);
-}
-
-static int etp_poll (void)
-{
- unsigned int maxreqs;
- unsigned int maxtime;
- struct timeval tv_start, tv_now;
-
- X_LOCK (reslock);
- maxreqs = max_poll_reqs;
- maxtime = max_poll_time;
- X_UNLOCK (reslock);
-
- if (maxtime)
- gettimeofday (&tv_start, 0);
-
- for (;;)
- {
- ETP_REQ *req;
-
- etp_maybe_start_thread ();
-
- X_LOCK (reslock);
- req = reqq_shift (&res_queue);
-
- if (req)
- {
- --npending;
-
- if (!res_queue.size && done_poll_cb)
- done_poll_cb ();
- }
-
- X_UNLOCK (reslock);
-
- if (!req)
- return 0;
-
- X_LOCK (reqlock);
- --nreqs;
- X_UNLOCK (reqlock);
-
- if (expect_false (req->type == EIO_GROUP && req->size))
- {
- req->int1 = 1; /* mark request as delayed */
- continue;
- }
- else
- {
- int res = ETP_FINISH (req);
- if (expect_false (res))
- return res;
- }
-
- if (expect_false (maxreqs && !--maxreqs))
- break;
-
- if (maxtime)
- {
- gettimeofday (&tv_now, 0);
-
- if (tvdiff (&tv_start, &tv_now) >= maxtime)
- break;
- }
- }
-
- errno = EAGAIN;
- return -1;
-}
-
-static void etp_cancel (ETP_REQ *req)
-{
- X_LOCK (wrklock);
- req->flags |= EIO_FLAG_CANCELLED;
- X_UNLOCK (wrklock);
-
- eio_grp_cancel (req);
-}
-
-static void etp_submit (ETP_REQ *req)
-{
- req->pri -= ETP_PRI_MIN;
-
- if (expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN;
- if (expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN;
-
- if (expect_false (req->type == EIO_GROUP))
- {
- /* I hope this is worth it :/ */
- X_LOCK (reqlock);
- ++nreqs;
- X_UNLOCK (reqlock);
-
- X_LOCK (reslock);
-
- ++npending;
-
- if (!reqq_push (&res_queue, req) && want_poll_cb)
- want_poll_cb ();
-
- X_UNLOCK (reslock);
- }
- else
- {
- X_LOCK (reqlock);
- ++nreqs;
- ++nready;
- reqq_push (&req_queue, req);
- X_COND_SIGNAL (reqwait);
- X_UNLOCK (reqlock);
-
- etp_maybe_start_thread ();
- }
-}
-
-static void etp_set_max_poll_time (double nseconds)
-{
- if (WORDACCESS_UNSAFE) X_LOCK (reslock);
- max_poll_time = nseconds * EIO_TICKS;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
-}
-
-static void etp_set_max_poll_reqs (unsigned int maxreqs)
-{
- if (WORDACCESS_UNSAFE) X_LOCK (reslock);
- max_poll_reqs = maxreqs;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
-}
-
-static void etp_set_max_idle (unsigned int nthreads)
-{
- if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
- max_idle = nthreads <= 0 ? 1 : nthreads;
- if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
-}
-
-static void etp_set_min_parallel (unsigned int nthreads)
-{
- if (wanted < nthreads)
- wanted = nthreads;
-}
-
-static void etp_set_max_parallel (unsigned int nthreads)
-{
- if (wanted > nthreads)
- wanted = nthreads;
-
- while (started > wanted)
- etp_end_thread ();
-}
-
-/*****************************************************************************/
-
-static void grp_try_feed (eio_req *grp)
-{
- while (grp->size < grp->int2 && !EIO_CANCELLED (grp))
- {
- grp->flags &= ~EIO_FLAG_GROUPADD;
-
- EIO_FEED (grp);
-
- /* stop if no progress has been made */
- if (!(grp->flags & EIO_FLAG_GROUPADD))
- {
- grp->feed = 0;
- break;
- }
- }
-}
-
-static int grp_dec (eio_req *grp)
-{
- --grp->size;
-
- /* call feeder, if applicable */
- grp_try_feed (grp);
-
- /* finish, if done */
- if (!grp->size && grp->int1)
- return eio_finish (grp);
- else
- return 0;
-}
-
-void eio_destroy (eio_req *req)
-{
- if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1);
- if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2);
-
- EIO_DESTROY (req);
-}
-
-static int eio_finish (eio_req *req)
-{
- int res = EIO_FINISH (req);
-
- if (req->grp)
- {
- int res2;
- eio_req *grp = req->grp;
-
- /* unlink request */
- if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
- if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
-
- if (grp->grp_first == req)
- grp->grp_first = req->grp_next;
-
- res2 = grp_dec (grp);
-
- if (!res && res2)
- res = res2;
- }
-
- eio_destroy (req);
-
- return res;
-}
-
-void eio_grp_cancel (eio_req *grp)
-{
- for (grp = grp->grp_first; grp; grp = grp->grp_next)
- eio_cancel (grp);
-}
-
-void eio_cancel (eio_req *req)
-{
- etp_cancel (req);
-}
-
-void eio_submit (eio_req *req)
-{
- etp_submit (req);
-}
-
-unsigned int eio_nreqs (void)
-{
- return etp_nreqs ();
-}
-
-unsigned int eio_nready (void)
-{
- return etp_nready ();
-}
-
-unsigned int eio_npending (void)
-{
- return etp_npending ();
-}
-
-unsigned int eio_nthreads (void)
-{
- return etp_nthreads ();
-}
-
-void eio_set_max_poll_time (double nseconds)
-{
- etp_set_max_poll_time (nseconds);
-}
-
-void eio_set_max_poll_reqs (unsigned int maxreqs)
-{
- etp_set_max_poll_reqs (maxreqs);
-}
-
-void eio_set_max_idle (unsigned int nthreads)
-{
- etp_set_max_idle (nthreads);
-}
-
-void eio_set_min_parallel (unsigned int nthreads)
-{
- etp_set_min_parallel (nthreads);
-}
-
-void eio_set_max_parallel (unsigned int nthreads)
-{
- etp_set_max_parallel (nthreads);
-}
-
-int eio_poll (void)
-{
- return etp_poll ();
-}
-
-/*****************************************************************************/
-/* work around various missing functions */
-
-#if !HAVE_PREADWRITE
-# undef pread
-# undef pwrite
-# define pread eio__pread
-# define pwrite eio__pwrite
-
-ssize_t
-eio__pread (int fd, void *buf, size_t count, off_t offset)
-{
- ssize_t res;
- off_t ooffset;
-
- X_LOCK (preadwritelock);
- ooffset = lseek (fd, 0, SEEK_CUR);
- lseek (fd, offset, SEEK_SET);
- res = read (fd, buf, count);
- lseek (fd, ooffset, SEEK_SET);
- X_UNLOCK (preadwritelock);
-
- return res;
-}
-
-ssize_t
-eio__pwrite (int fd, void *buf, size_t count, off_t offset)
-{
- ssize_t res;
- off_t ooffset;
-
- X_LOCK (preadwritelock);
- ooffset = lseek (fd, 0, SEEK_CUR);
- lseek (fd, offset, SEEK_SET);
- res = write (fd, buf, count);
- lseek (fd, ooffset, SEEK_SET);
- X_UNLOCK (preadwritelock);
-
- return res;
-}
-#endif
-
-#ifndef HAVE_UTIMES
-
-# undef utimes
-# define utimes(path,times) eio__utimes (path, times)
-
-static int
-eio__utimes (const char *filename, const struct timeval times[2])
-{
- if (times)
- {
- struct utimbuf buf;
-
- buf.actime = times[0].tv_sec;
- buf.modtime = times[1].tv_sec;
-
- return utime (filename, &buf);
- }
- else
- return utime (filename, 0);
-}
-
-#endif
-
-#ifndef HAVE_FUTIMES
-
-# undef futimes
-# define futimes(fd,times) eio__futimes (fd, times)
-
-static int eio__futimes (int fd, const struct timeval tv[2])
-{
- errno = ENOSYS;
- return -1;
-}
-
-#endif
-
-#ifdef _WIN32
-# define fsync(fd) (FlushFileBuffers((HANDLE)_get_osfhandle(fd)) ? 0 : -1)
-#endif
-
-#if !HAVE_FDATASYNC
-# undef fdatasync
-# define fdatasync(fd) fsync (fd)
-#endif
-
-// Use unicode and big file aware stat on windows
-#ifdef _WIN32
-# undef stat
-# undef fstat
-# define stat _stati64
-# define fstat _fstati64
-#endif
-
-/* sync_file_range always needs emulation */
-int
-eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)
-{
-#if HAVE_SYNC_FILE_RANGE
- int res;
-
- if (EIO_SYNC_FILE_RANGE_WAIT_BEFORE != SYNC_FILE_RANGE_WAIT_BEFORE
- || EIO_SYNC_FILE_RANGE_WRITE != SYNC_FILE_RANGE_WRITE
- || EIO_SYNC_FILE_RANGE_WAIT_AFTER != SYNC_FILE_RANGE_WAIT_AFTER)
- {
- flags = 0
- | (flags & EIO_SYNC_FILE_RANGE_WAIT_BEFORE ? SYNC_FILE_RANGE_WAIT_BEFORE : 0)
- | (flags & EIO_SYNC_FILE_RANGE_WRITE ? SYNC_FILE_RANGE_WRITE : 0)
- | (flags & EIO_SYNC_FILE_RANGE_WAIT_AFTER ? SYNC_FILE_RANGE_WAIT_AFTER : 0);
- }
-
- res = sync_file_range (fd, offset, nbytes, flags);
-
- if (!res || errno != ENOSYS)
- return res;
-#endif
-
- /* even though we could play tricks with the flags, it's better to always
- * call fdatasync, as that matches the expectation of its users best */
- return fdatasync (fd);
-}
-
-#if !HAVE_READAHEAD
-# undef readahead
-# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
-
-static ssize_t
-eio__readahead (int fd, off_t offset, size_t count, etp_worker *self)
-{
- size_t todo = count;
- dBUF;
-
- while (todo > 0)
- {
- size_t len = todo < EIO_BUFSIZE ? todo : EIO_BUFSIZE;
-
- pread (fd, eio_buf, len, offset);
- offset += len;
- todo -= len;
- }
-
- errno = 0;
- return count;
-}
-
-#endif
-
-/* sendfile always needs emulation */
-static ssize_t
-eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self)
-{
- ssize_t res;
-
- if (!count)
- return 0;
-
-#if HAVE_SENDFILE
-# if __linux
- res = sendfile (ofd, ifd, &offset, count);
-
-# elif __FreeBSD__
- /*
- * Of course, the freebsd sendfile is a dire hack with no thoughts
- * wasted on making it similar to other I/O functions.
- */
- {
- off_t sbytes;
- res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
-
- #if 0 /* according to the manpage, this is correct, but broken behaviour */
- /* freebsd' sendfile will return 0 on success */
- /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */
- /* not on e.g. EIO or EPIPE - sounds broken */
- if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0)
- res = sbytes;
- #endif
-
- /* according to source inspection, this is correct, and useful behaviour */
- if (sbytes)
- res = sbytes;
- }
-
-# elif defined (__APPLE__)
-
- {
- off_t sbytes = count;
- res = sendfile (ifd, ofd, offset, &sbytes, 0, 0);
-
- /* according to the manpage, sbytes is always valid */
- if (sbytes)
- res = sbytes;
- }
-
-# elif __hpux
- res = sendfile (ofd, ifd, offset, count, 0, 0);
-
-# elif __solaris
- {
- struct sendfilevec vec;
- size_t sbytes;
-
- vec.sfv_fd = ifd;
- vec.sfv_flag = 0;
- vec.sfv_off = offset;
- vec.sfv_len = count;
-
- res = sendfilev (ofd, &vec, 1, &sbytes);
-
- if (res < 0 && sbytes)
- res = sbytes;
- }
-
-# endif
-
-//#elif defined (_WIN32)
-//
-// /* does not work, just for documentation of what would need to be done */
-// {
-// HANDLE h = TO_SOCKET (ifd);
-// SetFilePointer (h, offset, 0, FILE_BEGIN);
-// res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);
-// }
-
-#else
- res = -1;
- errno = ENOSYS;
-#endif
-
- if (res < 0
- && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
- /* BSDs */
-#ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */
- || errno == ENOTSUP
-#endif
- || errno == EOPNOTSUPP /* BSDs */
-#if __solaris
- || errno == EAFNOSUPPORT || errno == EPROTOTYPE
-#endif
- )
- )
- {
- /* emulate sendfile. this is a major pain in the ass */
- dBUF;
-
- res = 0;
-
- while (count)
- {
- ssize_t cnt;
-
- cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset);
-
- if (cnt <= 0)
- {
- if (cnt && !res) res = -1;
- break;
- }
-
- cnt = write (ofd, eio_buf, cnt);
-
- if (cnt <= 0)
- {
- if (cnt && !res) res = -1;
- break;
- }
-
- offset += cnt;
- res += cnt;
- count -= cnt;
- }
- }
-
- return res;
-}
-
-static signed char
-eio_dent_cmp (const eio_dirent *a, const eio_dirent *b)
-{
- return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */
- : a->inode < b->inode ? -1 : a->inode > b->inode ? 1 : 0;
-}
-
-#define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0
-
-#define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */
-#define EIO_SORT_FAST 60 /* when to only use insertion sort */
-
-static void
-eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits)
-{
- unsigned char bits [9 + sizeof (ino_t) * 8];
- unsigned char *bit = bits;
-
- assert (CHAR_BIT == 8);
- assert (sizeof (eio_dirent) * 8 < 256);
- assert (offsetof (eio_dirent, inode)); /* we use 0 as sentinel */
- assert (offsetof (eio_dirent, score)); /* we use 0 as sentinel */
-
- if (size <= EIO_SORT_FAST)
- return;
-
- /* first prepare an array of bits to test in our radix sort */
- /* try to take endianness into account, as well as differences in ino_t sizes */
- /* inode_bits must contain all inodes ORed together */
- /* which is used to skip bits that are 0 everywhere, which is very common */
- {
- ino_t endianness;
- int i, j;
-
- /* we store the byte offset of byte n into byte n of "endianness" */
- for (i = 0; i < sizeof (ino_t); ++i)
- ((unsigned char *)&endianness)[i] = i;
-
- *bit++ = 0;
-
- for (i = 0; i < sizeof (ino_t); ++i)
- {
- /* shifting off the byte offsets out of "endianness" */
- int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8;
- endianness >>= 8;
-
- for (j = 0; j < 8; ++j)
- if (inode_bits & (((ino_t)1) << (i * 8 + j)))
- *bit++ = offs + j;
- }
-
- for (j = 0; j < 8; ++j)
- if (score_bits & (1 << j))
- *bit++ = offsetof (eio_dirent, score) * 8 + j;
- }
-
- /* now actually do the sorting (a variant of MSD radix sort) */
- {
- eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base;
- eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end;
- unsigned char *bit_stk [9 + sizeof (ino_t) * 8];
- int stk_idx = 0;
-
- base_stk [stk_idx] = dents;
- end_stk [stk_idx] = dents + size;
- bit_stk [stk_idx] = bit - 1;
-
- do
- {
- base = base_stk [stk_idx];
- end = end_stk [stk_idx];
- bit = bit_stk [stk_idx];
-
- for (;;)
- {
- unsigned char O = *bit >> 3;
- unsigned char M = 1 << (*bit & 7);
-
- eio_dirent *a = base;
- eio_dirent *b = end;
-
- if (b - a < EIO_SORT_CUTOFF)
- break;
-
- /* now bit-partition the array on the bit */
- /* this ugly asymmetric loop seems to perform much better than typical */
- /* partition algos found in the literature */
- do
- if (!(((unsigned char *)a)[O] & M))
- ++a;
- else if (!(((unsigned char *)--b)[O] & M))
- {
- eio_dirent tmp = *a; *a = *b; *b = tmp;
- ++a;
- }
- while (b > a);
-
- /* next bit, or stop, if no bits left in this path */
- if (!*--bit)
- break;
-
- base_stk [stk_idx] = a;
- end_stk [stk_idx] = end;
- bit_stk [stk_idx] = bit;
- ++stk_idx;
-
- end = a;
- }
- }
- while (stk_idx--);
- }
-}
-
-static void
-eio_dent_insertion_sort (eio_dirent *dents, int size)
-{
- /* first move the smallest element to the front, to act as a sentinel */
- {
- int i;
- eio_dirent *min = dents;
-
- /* the radix pre-pass ensures that the minimum element is in the first EIO_SORT_CUTOFF + 1 elements */
- for (i = size > EIO_SORT_FAST ? EIO_SORT_CUTOFF + 1 : size; --i; )
- if (EIO_DENT_CMP (dents [i], <, *min))
- min = &dents [i];
-
- /* swap elements 0 and j (minimum) */
- {
- eio_dirent tmp = *dents; *dents = *min; *min = tmp;
- }
- }
-
- /* then do standard insertion sort, assuming that all elements are >= dents [0] */
- {
- eio_dirent *i, *j;
-
- for (i = dents + 1; i < dents + size; ++i)
- {
- eio_dirent value = *i;
-
- for (j = i - 1; EIO_DENT_CMP (*j, >, value); --j)
- j [1] = j [0];
-
- j [1] = value;
- }
- }
-}
-
-static void
-eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits)
-{
- if (size <= 1)
- return; /* our insertion sort relies on size > 0 */
-
- /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */
- /* and stop sorting when the partitions are <= EIO_SORT_CUTOFF */
- eio_dent_radix_sort (dents, size, score_bits, inode_bits);
-
- /* use an insertion sort at the end, or for small arrays, */
- /* as insertion sort is more efficient for small partitions */
- eio_dent_insertion_sort (dents, size);
-}
-
-/* read a full directory */
-static void
-eio__scandir (eio_req *req, etp_worker *self)
-{
- DIR *dirp;
- EIO_STRUCT_DIRENT *entp;
- char *name, *names;
- int namesalloc = 4096;
- int namesoffs = 0;
- int flags = req->int1;
- eio_dirent *dents = 0;
- int dentalloc = 128;
- int dentoffs = 0;
- ino_t inode_bits = 0;
-
- req->result = -1;
-
- if (!(flags & EIO_READDIR_DENTS))
- flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER);
-
- X_LOCK (wrklock);
- /* the corresponding closedir is in ETP_WORKER_CLEAR */
- self->dirp = dirp = opendir (req->ptr1);
- req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE;
- req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0;
- req->ptr2 = names = malloc (namesalloc);
- X_UNLOCK (wrklock);
-
- if (dirp && names && (!flags || dents))
- for (;;)
- {
- errno = 0;
- entp = readdir (dirp);
-
- if (!entp)
- {
- if (errno)
- break;
-
- /* sort etc. */
- req->int1 = flags;
- req->result = dentoffs;
-
- if (flags & EIO_READDIR_STAT_ORDER)
- eio_dent_sort (dents, dentoffs, 0, inode_bits); /* sort by inode exclusively */
- else if (flags & EIO_READDIR_DIRS_FIRST)
- if (flags & EIO_READDIR_FOUND_UNKNOWN)
- eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */
- else
- {
- /* in this case, all is known, and we just put dirs first and sort them */
- eio_dirent *oth = dents + dentoffs;
- eio_dirent *dir = dents;
-
- /* now partition dirs to the front, and non-dirs to the back */
- /* by walking from both sides and swapping if necessary */
- /* also clear score, so it doesn't influence sorting */
- while (oth > dir)
- {
- if (dir->type == EIO_DT_DIR)
- ++dir;
- else if ((--oth)->type == EIO_DT_DIR)
- {
- eio_dirent tmp = *dir; *dir = *oth; *oth = tmp;
-
- ++dir;
- }
- }
-
- /* now sort the dirs only */
- eio_dent_sort (dents, dir - dents, 0, inode_bits);
- }
-
- break;
- }
-
- /* now add the entry to our list(s) */
- name = entp->d_name;
-
- /* skip . and .. entries */
- if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
- {
- int len = D_NAMLEN (entp) + 1;
-
- while (expect_false (namesoffs + len > namesalloc))
- {
- namesalloc *= 2;
- X_LOCK (wrklock);
- req->ptr2 = names = realloc (names, namesalloc);
- X_UNLOCK (wrklock);
-
- if (!names)
- break;
- }
-
- memcpy (names + namesoffs, name, len);
-
- if (dents)
- {
- struct eio_dirent *ent;
-
- if (expect_false (dentoffs == dentalloc))
- {
- dentalloc *= 2;
- X_LOCK (wrklock);
- req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent));
- X_UNLOCK (wrklock);
-
- if (!dents)
- break;
- }
-
- ent = dents + dentoffs;
-
- ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */
- ent->namelen = len - 1;
- ent->inode = D_INO (entp);
-
- inode_bits |= ent->inode;
-
- switch (D_TYPE (entp))
- {
- default:
- ent->type = EIO_DT_UNKNOWN;
- flags |= EIO_READDIR_FOUND_UNKNOWN;
- break;
-
- #ifdef DT_FIFO
- case DT_FIFO: ent->type = EIO_DT_FIFO; break;
- #endif
- #ifdef DT_CHR
- case DT_CHR: ent->type = EIO_DT_CHR; break;
- #endif
- #ifdef DT_MPC
- case DT_MPC: ent->type = EIO_DT_MPC; break;
- #endif
- #ifdef DT_DIR
- case DT_DIR: ent->type = EIO_DT_DIR; break;
- #endif
- #ifdef DT_NAM
- case DT_NAM: ent->type = EIO_DT_NAM; break;
- #endif
- #ifdef DT_BLK
- case DT_BLK: ent->type = EIO_DT_BLK; break;
- #endif
- #ifdef DT_MPB
- case DT_MPB: ent->type = EIO_DT_MPB; break;
- #endif
- #ifdef DT_REG
- case DT_REG: ent->type = EIO_DT_REG; break;
- #endif
- #ifdef DT_NWK
- case DT_NWK: ent->type = EIO_DT_NWK; break;
- #endif
- #ifdef DT_CMP
- case DT_CMP: ent->type = EIO_DT_CMP; break;
- #endif
- #ifdef DT_LNK
- case DT_LNK: ent->type = EIO_DT_LNK; break;
- #endif
- #ifdef DT_SOCK
- case DT_SOCK: ent->type = EIO_DT_SOCK; break;
- #endif
- #ifdef DT_DOOR
- case DT_DOOR: ent->type = EIO_DT_DOOR; break;
- #endif
- #ifdef DT_WHT
- case DT_WHT: ent->type = EIO_DT_WHT; break;
- #endif
- }
-
- ent->score = 7;
-
- if (flags & EIO_READDIR_DIRS_FIRST)
- {
- if (ent->type == EIO_DT_UNKNOWN)
- {
- if (*name == '.') /* leading dots are likely directories, and, in any case, rare */
- ent->score = 1;
- else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */
- ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */
- }
- else if (ent->type == EIO_DT_DIR)
- ent->score = 0;
- }
- }
-
- namesoffs += len;
- ++dentoffs;
- }
-
- if (EIO_CANCELLED (req))
- {
- errno = ECANCELED;
- break;
- }
- }
-}
-
-#ifdef PAGESIZE
-# define eio_pagesize() PAGESIZE
-
-#elif defined(_WIN32)
- /* Windows */
- static intptr_t
- eio_pagesize (void)
- {
- SYSTEM_INFO si;
- GetSystemInfo(&si);
- return si.dwPageSize;
- }
-
-#else
- /* POSIX */
- static intptr_t
- eio_pagesize (void)
- {
- static intptr_t page;
-
- if (!page)
- page = sysconf (_SC_PAGESIZE);
-
- return page;
- }
-#endif
-
-static void
-eio_page_align (void **addr, size_t *length)
-{
- intptr_t mask = eio_pagesize () - 1;
-
- /* round down addr */
- intptr_t adj = mask & (intptr_t)*addr;
-
- *addr = (void *)((intptr_t)*addr - adj);
- *length += adj;
-
- /* round up length */
- *length = (*length + mask) & ~mask;
-}
-
-#if !_POSIX_MEMLOCK
-# define eio__mlockall(a) ((errno = ENOSYS), -1)
-#else
-
-static int
-eio__mlockall (int flags)
-{
- #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
- extern int mallopt (int, int);
- mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
- #endif
-
- if (EIO_MCL_CURRENT != MCL_CURRENT
- || EIO_MCL_FUTURE != MCL_FUTURE)
- {
- flags = 0
- | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0)
- | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0);
- }
-
- return mlockall (flags);
-}
-#endif
-
-#if !_POSIX_MEMLOCK_RANGE
-# define eio__mlock(a,b) ((errno = ENOSYS), -1)
-#else
-
-static int
-eio__mlock (void *addr, size_t length)
-{
- eio_page_align (&addr, &length);
-
- return mlock (addr, length);
-}
-
-#endif
-
-#if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO)
-# define eio__msync(a,b,c) ((errno = ENOSYS), -1)
-#else
-
-int
-eio__msync (void *mem, size_t len, int flags)
-{
- eio_page_align (&mem, &len);
-
- if (EIO_MS_ASYNC != MS_SYNC
- || EIO_MS_INVALIDATE != MS_INVALIDATE
- || EIO_MS_SYNC != MS_SYNC)
- {
- flags = 0
- | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0)
- | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0)
- | (flags & EIO_MS_SYNC ? MS_SYNC : 0);
- }
-
- return msync (mem, len, flags);
-}
-
-#endif
-
-int
-eio__mtouch (void *mem, size_t len, int flags)
-{
- eio_page_align (&mem, &len);
-
- {
- intptr_t addr = (intptr_t)mem;
- intptr_t end = addr + len;
- intptr_t page = eio_pagesize ();
-
- if (addr < end)
- if (flags & EIO_MT_MODIFY) /* modify */
- do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len);
- else
- do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len);
- }
-
- return 0;
-}
-
-/*****************************************************************************/
-
-#define ALLOC(len) \
- if (!req->ptr2) \
- { \
- X_LOCK (wrklock); \
- req->flags |= EIO_FLAG_PTR2_FREE; \
- X_UNLOCK (wrklock); \
- req->ptr2 = malloc (len); \
- if (!req->ptr2) \
- { \
- errno = ENOMEM; \
- req->result = -1; \
- break; \
- } \
- }
-
-X_THREAD_PROC (etp_proc)
-{
- ETP_REQ *req;
- struct timespec ts;
- etp_worker *self = (etp_worker *)thr_arg;
-
- /* try to distribute timeouts somewhat randomly */
- ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
-
- for (;;)
- {
- X_LOCK (reqlock);
-
- for (;;)
- {
- self->req = req = reqq_shift (&req_queue);
-
- if (req)
- break;
-
- ++idle;
-
- ts.tv_sec = time (0) + IDLE_TIMEOUT;
- if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT)
- {
- if (idle > max_idle)
- {
- --idle;
- X_UNLOCK (reqlock);
- X_LOCK (wrklock);
- --started;
- X_UNLOCK (wrklock);
- goto quit;
- }
-
- /* we are allowed to idle, so do so without any timeout */
- X_COND_WAIT (reqwait, reqlock);
- }
-
- --idle;
- }
-
- --nready;
-
- X_UNLOCK (reqlock);
-
- if (req->type < 0)
- goto quit;
-
- if (!EIO_CANCELLED (req))
- ETP_EXECUTE (self, req);
-
- X_LOCK (reslock);
-
- ++npending;
-
- if (!reqq_push (&res_queue, req) && want_poll_cb)
- want_poll_cb ();
-
- self->req = 0;
- etp_worker_clear (self);
-
- X_UNLOCK (reslock);
- }
-
-quit:
- X_LOCK (wrklock);
- etp_worker_free (self);
- X_UNLOCK (wrklock);
-
- return 0;
-}
-
-/*****************************************************************************/
-
-int eio_init (void (*want_poll)(void), void (*done_poll)(void))
-{
- return etp_init (want_poll, done_poll);
-}
-
-static void eio_api_destroy (eio_req *req)
-{
- free (req);
-}
-
-#define REQ(rtype) \
- eio_req *req; \
- \
- req = (eio_req *)calloc (1, sizeof *req); \
- if (!req) \
- return 0; \
- \
- req->type = rtype; \
- req->pri = pri; \
- req->finish = cb; \
- req->data = data; \
- req->destroy = eio_api_destroy;
-
-#define SEND eio_submit (req); return req
-
-#define PATH \
- req->flags |= EIO_FLAG_PTR1_FREE; \
- req->ptr1 = strdup (path); \
- if (!req->ptr1) \
- { \
- eio_api_destroy (req); \
- return 0; \
- }
-
-static void eio_execute (etp_worker *self, eio_req *req)
-{
- switch (req->type)
- {
- case EIO_READ: ALLOC (req->size);
- req->result = req->offs >= 0
- ? pread (req->int1, req->ptr2, req->size, req->offs)
- : read (req->int1, req->ptr2, req->size); break;
- case EIO_WRITE:
-#if defined (__APPLE__)
- pthread_mutex_lock (&apple_bug_writelock);
-#endif
-
- req->result = req->offs >= 0
- ? pwrite (req->int1, req->ptr2, req->size, req->offs)
- : write (req->int1, req->ptr2, req->size);
-
-#if defined (__APPLE__)
- pthread_mutex_unlock (&apple_bug_writelock);
-#endif
- break;
-
- case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
- case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;
-
- case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
- req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
-#ifndef _WIN32
- case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
- req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
-#endif
- case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
- req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
-
-#ifndef _WIN32
- case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
- req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
- case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS));
- req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break;
-
- case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
- case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
-#endif
- case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
-#ifndef _WIN32
- case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
- case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
-#endif
- case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
-
- case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break;
- case EIO_CLOSE: req->result = close (req->int1); break;
- case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break;
- case EIO_UNLINK: req->result = unlink (req->ptr1); break;
- case EIO_RMDIR: req->result = rmdir (req->ptr1); break;
-#ifdef _WIN32
- case EIO_MKDIR: req->result = mkdir (req->ptr1); break;
-#else
- case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
-#endif
- case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
-#ifndef _WIN32
- case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
- case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
- case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->int3); break;
-#endif
-
-#ifndef _WIN32
- case EIO_READLINK: ALLOC (PATH_MAX);
- req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break;
-#endif
-
-#ifndef _WIN32
- case EIO_SYNC: req->result = 0; sync (); break;
-#endif
- case EIO_FSYNC: req->result = fsync (req->int1); break;
- case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
- case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
- case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break;
- case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
- case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;
- case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
-
- case EIO_READDIR: eio__scandir (req, self); break;
-
- case EIO_BUSY:
-#ifdef _WIN32
- Sleep (req->nv1 * 1e3);
-#else
- {
- struct timeval tv;
-
- tv.tv_sec = req->nv1;
- tv.tv_usec = (req->nv1 - tv.tv_sec) * 1e6;
-
- req->result = select (0, 0, 0, 0, &tv);
- }
-#endif
- break;
-
- case EIO_UTIME:
- case EIO_FUTIME:
- {
- struct timeval tv[2];
- struct timeval *times;
-
- if (req->nv1 != -1. || req->nv2 != -1.)
- {
- tv[0].tv_sec = req->nv1;
- tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
- tv[1].tv_sec = req->nv2;
- tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
-
- times = tv;
- }
- else
- times = 0;
-
- req->result = req->type == EIO_FUTIME
- ? futimes (req->int1, times)
- : utimes (req->ptr1, times);
- }
- break;
-
- case EIO_GROUP:
- abort (); /* handled in eio_request */
-
- case EIO_NOP:
- req->result = 0;
- break;
-
- case EIO_CUSTOM:
- ((void (*)(eio_req *))req->feed) (req);
- break;
-
- default:
- errno = ENOSYS;
- req->result = -1;
- break;
- }
-
- req->errorno = errno;
-}
-
-#ifndef EIO_NO_WRAPPERS
-
-eio_req *eio_nop (int pri, eio_cb cb, void *data)
-{
- REQ (EIO_NOP); SEND;
-}
-
-eio_req *eio_busy (double delay, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_BUSY); req->nv1 = delay; SEND;
-}
-
-eio_req *eio_sync (int pri, eio_cb cb, void *data)
-{
- REQ (EIO_SYNC); SEND;
-}
-
-eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FSYNC); req->int1 = fd; SEND;
-}
-
-eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
-}
-
-eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
-}
-
-eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_MLOCK); req->ptr2 = addr; req->size = length; SEND;
-}
-
-eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_MLOCKALL); req->int1 = flags; SEND;
-}
-
-eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
-}
-
-eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
-}
-
-eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_CLOSE); req->int1 = fd; SEND;
-}
-
-eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
-}
-
-eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
-}
-
-eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
-}
-
-eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FSTAT); req->int1 = fd; SEND;
-}
-
-eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FSTATVFS); req->int1 = fd; SEND;
-}
-
-eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND;
-}
-
-eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND;
-}
-
-eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
-}
-
-eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
-}
-
-eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND;
-}
-
-eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND;
-}
-
-eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND;
-}
-
-eio_req *eio_utime (const char *path, double atime, double mtime, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND;
-}
-
-eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
-}
-
-eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
-}
-
-eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND;
-}
-
-eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND;
-}
-
-static eio_req *
-eio__1path (int type, const char *path, int pri, eio_cb cb, void *data)
-{
- REQ (type); PATH; SEND;
-}
-
-eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data)
-{
- return eio__1path (EIO_READLINK, path, pri, cb, data);
-}
-
-eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data)
-{
- return eio__1path (EIO_STAT, path, pri, cb, data);
-}
-
-eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data)
-{
- return eio__1path (EIO_LSTAT, path, pri, cb, data);
-}
-
-eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data)
-{
- return eio__1path (EIO_STATVFS, path, pri, cb, data);
-}
-
-eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data)
-{
- return eio__1path (EIO_UNLINK, path, pri, cb, data);
-}
-
-eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data)
-{
- return eio__1path (EIO_RMDIR, path, pri, cb, data);
-}
-
-eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_READDIR); PATH; req->int1 = flags; SEND;
-}
-
-eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int3 = (long)dev; SEND;
-}
-
-static eio_req *
-eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data)
-{
- REQ (type); PATH;
-
- req->flags |= EIO_FLAG_PTR2_FREE;
- req->ptr2 = strdup (new_path);
- if (!req->ptr2)
- {
- eio_api_destroy (req);
- return 0;
- }
-
- SEND;
-}
-
-eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
-{
- return eio__2path (EIO_LINK, path, new_path, pri, cb, data);
-}
-
-eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
-{
- return eio__2path (EIO_SYMLINK, path, new_path, pri, cb, data);
-}
-
-eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
-{
- return eio__2path (EIO_RENAME, path, new_path, pri, cb, data);
-}
-
-eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data)
-{
- REQ (EIO_CUSTOM); req->feed = (void (*)(eio_req *))execute; SEND;
-}
-
-#endif
-
-eio_req *eio_grp (eio_cb cb, void *data)
-{
- const int pri = EIO_PRI_MAX;
-
- REQ (EIO_GROUP); SEND;
-}
-
-#undef REQ
-#undef PATH
-#undef SEND
-
-/*****************************************************************************/
-/* grp functions */
-
-void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit)
-{
- grp->int2 = limit;
- grp->feed = feed;
-
- grp_try_feed (grp);
-}
-
-void eio_grp_limit (eio_req *grp, int limit)
-{
- grp->int2 = limit;
-
- grp_try_feed (grp);
-}
-
-void eio_grp_add (eio_req *grp, eio_req *req)
-{
- assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2));
-
- grp->flags |= EIO_FLAG_GROUPADD;
-
- ++grp->size;
- req->grp = grp;
-
- req->grp_prev = 0;
- req->grp_next = grp->grp_first;
-
- if (grp->grp_first)
- grp->grp_first->grp_prev = req;
-
- grp->grp_first = req;
-}
-
-/*****************************************************************************/
-/* misc garbage */
-
-ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
-{
- etp_worker wrk;
- ssize_t ret;
-
- wrk.dbuf = 0;
-
- ret = eio__sendfile (ofd, ifd, offset, count, &wrk);
-
- if (wrk.dbuf)
- free (wrk.dbuf);
-
- return ret;
-}
-
+++ /dev/null
-/*
- * libeio API header
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libeio@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EIO_H_
-#define EIO_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stddef.h>
-#include <sys/types.h>
-
-#ifdef __OpenBSD__
-# include <inttypes.h>
-#endif
-
-#ifdef _WIN32
-# define uid_t int
-# define gid_t int
-#endif
-
-typedef struct eio_req eio_req;
-typedef struct eio_dirent eio_dirent;
-
-typedef int (*eio_cb)(eio_req *req);
-
-#ifndef EIO_REQ_MEMBERS
-# define EIO_REQ_MEMBERS
-#endif
-
-#ifndef EIO_STRUCT_STAT
-# ifdef _WIN32
-# define EIO_STRUCT_STAT struct _stati64
-# else
-# define EIO_STRUCT_STAT struct stat
-# endif
-#endif
-
-#ifndef EIO_STRUCT_STATVFS
-# define EIO_STRUCT_STATVFS struct statvfs
-#endif
-
-/* for readdir */
-
-/* eio_readdir flags */
-enum
-{
- EIO_READDIR_DENTS = 0x01, /* ptr2 contains eio_dirents, not just the (unsorted) names */
- EIO_READDIR_DIRS_FIRST = 0x02, /* dirents gets sorted into a good stat() ing order to find directories first */
- EIO_READDIR_STAT_ORDER = 0x04, /* dirents gets sorted into a good stat() ing order to quickly stat all files */
- EIO_READDIR_FOUND_UNKNOWN = 0x80, /* set by eio_readdir when *_ARRAY was set and any TYPE=UNKNOWN's were found */
-
- EIO_READDIR_CUSTOM1 = 0x100, /* for use by apps */
- EIO_READDIR_CUSTOM2 = 0x200 /* for use by apps */
-};
-
-/* using "typical" values in the hope that the compiler will do something sensible */
-enum eio_dtype
-{
- EIO_DT_UNKNOWN = 0,
- EIO_DT_FIFO = 1,
- EIO_DT_CHR = 2,
- EIO_DT_MPC = 3, /* multiplexed char device (v7+coherent) */
- EIO_DT_DIR = 4,
- EIO_DT_NAM = 5, /* xenix special named file */
- EIO_DT_BLK = 6,
- EIO_DT_MPB = 7, /* multiplexed block device (v7+coherent) */
- EIO_DT_REG = 8,
- EIO_DT_NWK = 9, /* HP-UX network special */
- EIO_DT_CMP = 9, /* VxFS compressed */
- EIO_DT_LNK = 10,
- /* DT_SHAD = 11,*/
- EIO_DT_SOCK = 12,
- EIO_DT_DOOR = 13, /* solaris door */
- EIO_DT_WHT = 14,
- EIO_DT_MAX = 15 /* highest DT_VALUE ever, hopefully */
-};
-
-struct eio_dirent
-{
- int nameofs; /* offset of null-terminated name string in (char *)req->ptr2 */
- unsigned short namelen; /* size of filename without trailing 0 */
- unsigned char type; /* one of EIO_DT_* */
- signed char score; /* internal use */
- ino_t inode; /* the inode number, if available, otherwise unspecified */
-};
-
-/* eio_msync flags */
-enum
-{
- EIO_MS_ASYNC = 1,
- EIO_MS_INVALIDATE = 2,
- EIO_MS_SYNC = 4
-};
-
-/* eio_mtouch flags */
-
-enum
-{
- EIO_MT_MODIFY = 1
-};
-
-/* eio_sync_file_range flags */
-
-enum
-{
- EIO_SYNC_FILE_RANGE_WAIT_BEFORE = 1,
- EIO_SYNC_FILE_RANGE_WRITE = 2,
- EIO_SYNC_FILE_RANGE_WAIT_AFTER = 4
-};
-
-typedef double eio_tstamp; /* feel free to use double in your code directly */
-
-/* the eio request structure */
-
-enum
-{
- EIO_CUSTOM,
- EIO_OPEN, EIO_CLOSE, EIO_DUP2,
- EIO_READ, EIO_WRITE,
- EIO_READAHEAD, EIO_SENDFILE,
- EIO_STAT, EIO_LSTAT, EIO_FSTAT,
- EIO_STATVFS, EIO_FSTATVFS,
- EIO_TRUNCATE, EIO_FTRUNCATE,
- EIO_UTIME, EIO_FUTIME,
- EIO_CHMOD, EIO_FCHMOD,
- EIO_CHOWN, EIO_FCHOWN,
- EIO_SYNC, EIO_FSYNC, EIO_FDATASYNC,
- EIO_MSYNC, EIO_MTOUCH, EIO_SYNC_FILE_RANGE,
- EIO_MLOCK, EIO_MLOCKALL,
- EIO_UNLINK, EIO_RMDIR, EIO_MKDIR, EIO_RENAME,
- EIO_MKNOD, EIO_READDIR,
- EIO_LINK, EIO_SYMLINK, EIO_READLINK,
- EIO_GROUP, EIO_NOP,
- EIO_BUSY
-};
-
-/* mlockall constants */
-enum
-{
- EIO_MCL_CURRENT = 1,
- EIO_MCL_FUTURE = 2,
-};
-
-/* request priorities */
-
-enum {
- EIO_PRI_MIN = -4,
- EIO_PRI_MAX = 4,
- EIO_PRI_DEFAULT = 0,
-};
-
-/* eio request structure */
-/* this structure is mostly read-only */
-/* when initialising it, all members must be zero-initialised */
-struct eio_req
-{
- eio_req volatile *next; /* private ETP */
-
- ssize_t result; /* result of syscall, e.g. result = read (... */
- off_t offs; /* read, write, truncate, readahead, sync_file_range: file offset */
- size_t size; /* read, write, readahead, sendfile, msync, mlock, sync_file_range: length */
- void *ptr1; /* all applicable requests: pathname, old name; readdir: optional eio_dirents */
- void *ptr2; /* all applicable requests: new name or memory buffer; readdir: name strings */
- eio_tstamp nv1; /* utime, futime: atime; busy: sleep time */
- eio_tstamp nv2; /* utime, futime: mtime */
-
- int type; /* EIO_xxx constant ETP */
- int int1; /* all applicable requests: file descriptor; sendfile: output fd; open, msync, mlockall, readdir: flags */
- long int2; /* chown, fchown: uid; sendfile: input fd; open, chmod, mkdir, mknod: file mode, sync_file_range: flags */
- long int3; /* chown, fchown: gid; mknod: dev_t */
- int errorno; /* errno value on syscall return */
-
- unsigned char flags; /* private */
- signed char pri; /* the priority */
-
- void *data;
- eio_cb finish;
- void (*destroy)(eio_req *req); /* called when requets no longer needed */
- void (*feed)(eio_req *req); /* only used for group requests */
-
- EIO_REQ_MEMBERS
-
- eio_req *grp, *grp_prev, *grp_next, *grp_first; /* private */
-};
-
-/* _private_ request flags */
-enum {
- EIO_FLAG_CANCELLED = 0x01, /* request was cancelled */
- EIO_FLAG_PTR1_FREE = 0x02, /* need to free(ptr1) */
- EIO_FLAG_PTR2_FREE = 0x04, /* need to free(ptr2) */
- EIO_FLAG_GROUPADD = 0x08 /* some request was added to the group */
-};
-
-/* undocumented/unsupported/private helper */
-/*void eio_page_align (void **addr, size_t *length);*/
-
-/* returns < 0 on error, errno set
- * need_poll, if non-zero, will be called when results are available
- * and eio_poll_cb needs to be invoked (it MUST NOT call eio_poll_cb itself).
- * done_poll is called when the need to poll is gone.
- */
-int eio_init (void (*want_poll)(void), void (*done_poll)(void));
-
-/* must be called regularly to handle pending requests */
-/* returns 0 if all requests were handled, -1 if not, or the value of EIO_FINISH if != 0 */
-int eio_poll (void);
-
-/* stop polling if poll took longer than duration seconds */
-void eio_set_max_poll_time (eio_tstamp nseconds);
-/* do not handle more then count requests in one call to eio_poll_cb */
-void eio_set_max_poll_reqs (unsigned int nreqs);
-
-/* set minimum required number
- * maximum wanted number
- * or maximum idle number of threads */
-void eio_set_min_parallel (unsigned int nthreads);
-void eio_set_max_parallel (unsigned int nthreads);
-void eio_set_max_idle (unsigned int nthreads);
-
-unsigned int eio_nreqs (void); /* number of requests in-flight */
-unsigned int eio_nready (void); /* number of not-yet handled requests */
-unsigned int eio_npending (void); /* numbe rof finished but unhandled requests */
-unsigned int eio_nthreads (void); /* number of worker threads in use currently */
-
-/*****************************************************************************/
-/* convinience wrappers */
-
-#ifndef EIO_NO_WRAPPERS
-eio_req *eio_nop (int pri, eio_cb cb, void *data); /* does nothing except go through the whole process */
-eio_req *eio_busy (eio_tstamp delay, int pri, eio_cb cb, void *data); /* ties a thread for this long, simulating busyness */
-eio_req *eio_sync (int pri, eio_cb cb, void *data);
-eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data);
-eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data);
-eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
-eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data);
-eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data);
-eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data);
-eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data);
-eio_req *eio_close (int fd, int pri, eio_cb cb, void *data);
-eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data);
-eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
-eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data);
-eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
-eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
-eio_req *eio_futime (int fd, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
-eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data);
-eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data);
-eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data);
-eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data);
-eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data);
-eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data);
-eio_req *eio_utime (const char *path, eio_tstamp atime, eio_tstamp mtime, int pri, eio_cb cb, void *data);
-eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data);
-eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data);
-eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
-eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data);
-eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
-eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data);
-eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data);
-eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data); /* result=ptr2 allocated dynamically */
-eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
-eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
-eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data); /* stat buffer=ptr2 allocated dynamically */
-eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data);
-eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
-eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
-eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data);
-eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data);
-#endif
-
-/*****************************************************************************/
-/* groups */
-
-eio_req *eio_grp (eio_cb cb, void *data);
-void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit);
-void eio_grp_limit (eio_req *grp, int limit);
-void eio_grp_add (eio_req *grp, eio_req *req);
-void eio_grp_cancel (eio_req *grp); /* cancels all sub requests but not the group */
-
-/*****************************************************************************/
-/* request api */
-
-/* true if the request was cancelled, useful in the invoke callback */
-#define EIO_CANCELLED(req) ((req)->flags & EIO_FLAG_CANCELLED)
-
-#define EIO_RESULT(req) ((req)->result)
-/* returns a pointer to the result buffer allocated by eio */
-#define EIO_BUF(req) ((req)->ptr2)
-#define EIO_STAT_BUF(req) ((EIO_STRUCT_STAT *)EIO_BUF(req))
-#define EIO_STATVFS_BUF(req) ((EIO_STRUCT_STATVFS *)EIO_BUF(req))
-#define EIO_PATH(req) ((char *)(req)->ptr1)
-
-/* submit a request for execution */
-void eio_submit (eio_req *req);
-/* cancel a request as soon fast as possible, if possible */
-void eio_cancel (eio_req *req);
-/* destroy a request that has never been submitted */
-void eio_destroy (eio_req *req);
-
-/*****************************************************************************/
-/* convinience functions */
-
-ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count);
-
-/*****************************************************************************/
-/* export these so node_file can use these function instead of pread/write */
-
-#if !HAVE_PREADWRITE
-ssize_t eio__pread (int fd, void *buf, size_t count, off_t offset);
-ssize_t eio__pwrite (int fd, void *buf, size_t count, off_t offset);
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
+++ /dev/null
-=head1 NAME
-
-libeio - truly asynchronous POSIX I/O
-
-=head1 SYNOPSIS
-
- #include <eio.h>
-
-=head1 DESCRIPTION
-
-The newest version of this document is also available as an html-formatted
-web page you might find easier to navigate when reading it for the first
-time: L<http://pod.tst.eu/http://cvs.schmorp.de/libeio/eio.pod>.
-
-Note that this library is a by-product of the C<IO::AIO> perl
-module, and many of the subtler points regarding requets lifetime
-and so on are only documented in its documentation at the
-moment: L<http://pod.tst.eu/http://cvs.schmorp.de/IO-AIO/AIO.pm>.
-
-=head2 FEATURES
-
-This library provides fully asynchronous versions of most POSIX functions
-dealign with I/O. Unlike most asynchronous libraries, this not only
-includes C<read> and C<write>, but also C<open>, C<stat>, C<unlink> and
-similar functions, as well as less rarely ones such as C<mknod>, C<futime>
-or C<readlink>.
-
-It also offers wrappers around C<sendfile> (Solaris, Linux, HP-UX and
-FreeBSD, with emulation on other platforms) and C<readahead> (Linux, with
-emulation elsewhere>).
-
-The goal is to enable you to write fully non-blocking programs. For
-example, in a game server, you would not want to freeze for a few seconds
-just because the server is running a backup and you happen to call
-C<readdir>.
-
-=head2 TIME REPRESENTATION
-
-Libeio represents time as a single floating point number, representing the
-(fractional) number of seconds since the (POSIX) epoch (somewhere near
-the beginning of 1970, details are complicated, don't ask). This type is
-called C<eio_tstamp>, but it is guarenteed to be of type C<double> (or
-better), so you can freely use C<double> yourself.
-
-Unlike the name component C<stamp> might indicate, it is also used for
-time differences throughout libeio.
-
-=head2 FORK SUPPORT
-
-Calling C<fork ()> is fully supported by this module. It is implemented in these steps:
-
- 1. wait till all requests in "execute" state have been handled
- (basically requests that are already handed over to the kernel).
- 2. fork
- 3. in the parent, continue business as usual, done
- 4. in the child, destroy all ready and pending requests and free the
- memory used by the worker threads. This gives you a fully empty
- libeio queue.
-
-=head1 INITIALISATION/INTEGRATION
-
-Before you can call any eio functions you first have to initialise the
-library. The library integrates into any event loop, but can also be used
-without one, including in polling mode.
-
-You have to provide the necessary glue yourself, however.
-
-=over 4
-
-=item int eio_init (void (*want_poll)(void), void (*done_poll)(void))
-
-This function initialises the library. On success it returns C<0>, on
-failure it returns C<-1> and sets C<errno> appropriately.
-
-It accepts two function pointers specifying callbacks as argument, both of
-which can be C<0>, in which case the callback isn't called.
-
-=item want_poll callback
-
-The C<want_poll> callback is invoked whenever libeio wants attention (i.e.
-it wants to be polled by calling C<eio_poll>). It is "edge-triggered",
-that is, it will only be called once when eio wants attention, until all
-pending requests have been handled.
-
-This callback is called while locks are being held, so I<you must
-not call any libeio functions inside this callback>. That includes
-C<eio_poll>. What you should do is notify some other thread, or wake up
-your event loop, and then call C<eio_poll>.
-
-=item done_poll callback
-
-This callback is invoked when libeio detects that all pending requests
-have been handled. It is "edge-triggered", that is, it will only be
-called once after C<want_poll>. To put it differently, C<want_poll> and
-C<done_poll> are invoked in pairs: after C<want_poll> you have to call
-C<eio_poll ()> until either C<eio_poll> indicates that everything has been
-handled or C<done_poll> has been called, which signals the same.
-
-Note that C<eio_poll> might return after C<done_poll> and C<want_poll>
-have been called again, so watch out for races in your code.
-
-As with C<want_poll>, this callback is called while lcoks are being held,
-so you I<must not call any libeio functions form within this callback>.
-
-=item int eio_poll ()
-
-This function has to be called whenever there are pending requests that
-need finishing. You usually call this after C<want_poll> has indicated
-that you should do so, but you can also call this function regularly to
-poll for new results.
-
-If any request invocation returns a non-zero value, then C<eio_poll ()>
-immediately returns with that value as return value.
-
-Otherwise, if all requests could be handled, it returns C<0>. If for some
-reason not all requests have been handled, i.e. some are still pending, it
-returns C<-1>.
-
-=back
-
-For libev, you would typically use an C<ev_async> watcher: the
-C<want_poll> callback would invoke C<ev_async_send> to wake up the event
-loop. Inside the callback set for the watcher, one would call C<eio_poll
-()> (followed by C<ev_async_send> again if C<eio_poll> indicates that not
-all requests have been handled yet). The race is taken care of because
-libev resets/rearms the async watcher before calling your callback,
-and therefore, before calling C<eio_poll>. This might result in (some)
-spurious wake-ups, but is generally harmless.
-
-For most other event loops, you would typically use a pipe - the event
-loop should be told to wait for read readyness on the read end. In
-C<want_poll> you would write a single byte, in C<done_poll> you would try
-to read that byte, and in the callback for the read end, you would call
-C<eio_poll>. The race is avoided here because the event loop should invoke
-your callback again and again until the byte has been read (as the pipe
-read callback does not read it, only C<done_poll>).
-
-=head2 CONFIGURATION
-
-The functions in this section can sometimes be useful, but the default
-configuration will do in most case, so you should skip this section on
-first reading.
-
-=over 4
-
-=item eio_set_max_poll_time (eio_tstamp nseconds)
-
-This causes C<eio_poll ()> to return after it has detected that it was
-running for C<nsecond> seconds or longer (this number can be fractional).
-
-This can be used to limit the amount of time spent handling eio requests,
-for example, in interactive programs, you might want to limit this time to
-C<0.01> seconds or so.
-
-Note that:
-
-a) libeio doesn't know how long your request callbacks take, so the time
-spent in C<eio_poll> is up to one callback invocation longer then this
-interval.
-
-b) this is implemented by calling C<gettimeofday> after each request,
-which can be costly.
-
-c) at least one request will be handled.
-
-=item eio_set_max_poll_reqs (unsigned int nreqs)
-
-When C<nreqs> is non-zero, then C<eio_poll> will not handle more than
-C<nreqs> requests per invocation. This is a less costly way to limit the
-amount of work done by C<eio_poll> then setting a time limit.
-
-If you know your callbacks are generally fast, you could use this to
-encourage interactiveness in your programs by setting it to C<10>, C<100>
-or even C<1000>.
-
-=item eio_set_min_parallel (unsigned int nthreads)
-
-Make sure libeio can handle at least this many requests in parallel. It
-might be able handle more.
-
-=item eio_set_max_parallel (unsigned int nthreads)
-
-Set the maximum number of threads that libeio will spawn.
-
-=item eio_set_max_idle (unsigned int nthreads)
-
-Libeio uses threads internally to handle most requests, and will start and stop threads on demand.
-
-This call can be used to limit the number of idle threads (threads without
-work to do): libeio will keep some threads idle in preperation for more
-requests, but never longer than C<nthreads> threads.
-
-In addition to this, libeio will also stop threads when they are idle for
-a few seconds, regardless of this setting.
-
-=item unsigned int eio_nthreads ()
-
-Return the number of worker threads currently running.
-
-=item unsigned int eio_nreqs ()
-
-Return the number of requests currently handled by libeio. This is the
-total number of requests that have been submitted to libeio, but not yet
-destroyed.
-
-=item unsigned int eio_nready ()
-
-Returns the number of ready requests, i.e. requests that have been
-submitted but have not yet entered the execution phase.
-
-=item unsigned int eio_npending ()
-
-Returns the number of pending requests, i.e. requests that have been
-executed and have results, but have not been finished yet by a call to
-C<eio_poll>).
-
-=back
-
-
-=head1 ANATOMY OF AN EIO REQUEST
-
-#TODO
-
-
-=head1 HIGH LEVEL REQUEST API
-
-#TODO
-
-=back
-
-
-=head1 LOW LEVEL REQUEST API
-
-#TODO
-
-=head1 EMBEDDING
-
-Libeio can be embedded directly into programs. This functionality is not
-documented and not (yet) officially supported.
-
-Note that, when including C<libeio.m4>, you are responsible for defining
-the compilation environment (C<_LARGEFILE_SOURCE>, C<_GNU_SOURCE> etc.).
-
-If you need to know how, check the C<IO::AIO> perl module, which does
-exactly that.
-
-
-=head1 COMPILETIME CONFIGURATION
-
-These symbols, if used, must be defined when compiling F<eio.c>.
-
-=over 4
-
-=item EIO_STACKSIZE
-
-This symbol governs the stack size for each eio thread. Libeio itself
-was written to use very little stackspace, but when using C<EIO_CUSTOM>
-requests, you might want to increase this.
-
-If this symbol is undefined (the default) then libeio will use its default
-stack size (C<sizeof (long) * 4096> currently). If it is defined, but
-C<0>, then the default operating system stack size will be used. In all
-other cases, the value must be an expression that evaluates to the desired
-stack size.
-
-=back
-
-
-=head1 PORTABILITY REQUIREMENTS
-
-In addition to a working ISO-C implementation, libeio relies on a few
-additional extensions:
-
-=over 4
-
-=item POSIX threads
-
-To be portable, this module uses threads, specifically, the POSIX threads
-library must be available (and working, which partially excludes many xBSD
-systems, where C<fork ()> is buggy).
-
-=item POSIX-compatible filesystem API
-
-This is actually a harder portability requirement: The libeio API is quite
-demanding regarding POSIX API calls (symlinks, user/group management
-etc.).
-
-=item C<double> must hold a time value in seconds with enough accuracy
-
-The type C<double> is used to represent timestamps. It is required to
-have at least 51 bits of mantissa (and 9 bits of exponent), which is good
-enough for at least into the year 4000. This requirement is fulfilled by
-implementations implementing IEEE 754 (basically all existing ones).
-
-=back
-
-If you know of other additional requirements drop me a note.
-
-
-=head1 AUTHOR
-
-Marc Lehmann <libeio@schmorp.de>.
-
+++ /dev/null
-AC_SEARCH_LIBS(
- pthread_create,
- [pthread pthreads pthreadVC2],
- ,
- [AC_MSG_ERROR(pthread functions not found)]
-)
-
-AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([[
-#include <sys/types.h>
-#include <sys/time.h>
-#include <utime.h>
-struct timeval tv[2];
-int res;
-int main (void)
-{
- res = utimes ("/", tv);
- return 0;
-}
-]],ac_cv_utimes=yes,ac_cv_utimes=no)])
-test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)
-
-AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[
-#include <sys/types.h>
-#include <sys/time.h>
-#include <utime.h>
-struct timeval tv[2];
-int res;
-int fd;
-int main (void)
-{
- res = futimes (fd, tv);
- return 0;
-}
-]],ac_cv_futimes=yes,ac_cv_futimes=no)])
-test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)
-
-AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([
-#include <fcntl.h>
-int main (void)
-{
- int fd = 0;
- size_t count = 2;
- ssize_t res;
- res = readahead (fd, 0, count);
- return 0;
-}
-],ac_cv_readahead=yes,ac_cv_readahead=no)])
-test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))
-
-AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([
-#include <unistd.h>
-int main (void)
-{
- int fd = 0;
- fdatasync (fd);
- return 0;
-}
-],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
-test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)
-
-AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
-#include <unistd.h>
-int main (void)
-{
- int fd = 0;
- size_t count = 1;
- char buf;
- off_t offset = 1;
- ssize_t res;
- res = pread (fd, &buf, count, offset);
- res = pwrite (fd, &buf, count, offset);
- return 0;
-}
-],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
-test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)
-
-AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([
-# include <sys/types.h>
-#if __linux
-# include <sys/sendfile.h>
-#elif __FreeBSD__ || defined __APPLE__
-# include <sys/socket.h>
-# include <sys/uio.h>
-#elif __hpux
-# include <sys/socket.h>
-#else
-# error unsupported architecture
-#endif
-int main (void)
-{
- int fd = 0;
- off_t offset = 1;
- size_t count = 2;
- ssize_t res;
-#if __linux
- res = sendfile (fd, fd, offset, count);
-#elif __FreeBSD__
- res = sendfile (fd, fd, offset, count, 0, &offset, 0);
-#elif __hpux
- res = sendfile (fd, fd, offset, count, 0, 0);
-#endif
- return 0;
-}
-],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
-test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
-
-AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([
-#include <fcntl.h>
-int main (void)
-{
- int fd = 0;
- off64_t offset = 1;
- off64_t nbytes = 1;
- unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
- ssize_t res;
- res = sync_file_range (fd, offset, nbytes, flags);
- return 0;
-}
-],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
-test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
-
-dnl #############################################################################
-dnl # these checks exist for the benefit of IO::AIO
-
-dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required
-dnl functionality actually being present. ugh.
-AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([
-#include <sys/mman.h>
-int main (void)
-{
- int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL);
- int a = POSIX_MADV_SEQUENTIAL;
- int b = POSIX_MADV_RANDOM;
- int c = POSIX_MADV_WILLNEED;
- int d = POSIX_MADV_DONTNEED;
- return 0;
-}
-],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)])
-test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available)
-
-AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([
-#define _XOPEN_SOURCE 600
-#include <fcntl.h>
-int main (void)
-{
- int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL);
- int a = POSIX_FADV_SEQUENTIAL;
- int b = POSIX_FADV_NOREUSE;
- int c = POSIX_FADV_RANDOM;
- int d = POSIX_FADV_WILLNEED;
- int e = POSIX_FADV_DONTNEED;
- return 0;
-}
-],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)])
-test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available)
-
+++ /dev/null
-#ifndef XTHREAD_H_
-#define XTHREAD_H_
-
-/* whether word reads are potentially non-atomic.
- * this is conservatice, likely most arches this runs
- * on have atomic word read/writes.
- */
-#ifndef WORDACCESS_UNSAFE
-# if __i386 || __x86_64
-# define WORDACCESS_UNSAFE 0
-# else
-# define WORDACCESS_UNSAFE 1
-# endif
-#endif
-
-/////////////////////////////////////////////////////////////////////////////
-
-#ifdef _WIN32
-
-#ifndef __MINGW32__
-typedef int ssize_t
-#endif
-
-#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls
-#ifndef _WIN32_WINNT
-#define _WIN32_WINNT 0x400
-#endif
-#include <stdio.h>//D
-#include <fcntl.h>
-#include <io.h>
-#include <time.h>
-#include <winsock2.h>
-#include <process.h>
-#include <windows.h>
-#include <pthread.h>
-#define sigset_t int
-#define pthread_sigmask(a,b,c)
-#define sigaddset(a,b)
-#define sigemptyset(s)
-#define sigfillset(s)
-
-typedef pthread_mutex_t xmutex_t;
-#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
-#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
-#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
-
-typedef pthread_cond_t xcond_t;
-#define X_COND_INIT PTHREAD_COND_INITIALIZER
-#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
-#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
-#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
-
-typedef pthread_t xthread_t;
-#define X_THREAD_PROC(name) void *name (void *thr_arg)
-#define X_THREAD_ATFORK(a,b,c)
-
-static int
-thread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
-{
- int retval;
- pthread_attr_t attr;
-
- pthread_attr_init (&attr);
- pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-
- retval = pthread_create (tid, &attr, proc, arg) == 0;
-
- pthread_attr_destroy (&attr);
-
- return retval;
-}
-
-#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
-#define respipe_write(a,b,c) send ((a), (b), (c), 0)
-#define respipe_close(a) PerlSock_closesocket ((a))
-
-#else
-/////////////////////////////////////////////////////////////////////////////
-
-#if __linux && !defined(_GNU_SOURCE)
-# define _GNU_SOURCE
-#endif
-
-/* just in case */
-#define _REENTRANT 1
-
-#if __solaris
-# define _POSIX_PTHREAD_SEMANTICS 1
-/* try to bribe solaris headers into providing a current pthread API
- * despite environment being configured for an older version.
- */
-# define __EXTENSIONS__ 1
-#endif
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <limits.h>
-#include <pthread.h>
-
-typedef pthread_mutex_t xmutex_t;
-#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
-# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
-#else
-# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
-#endif
-#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
-#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
-
-typedef pthread_cond_t xcond_t;
-#define X_COND_INIT PTHREAD_COND_INITIALIZER
-#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
-#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
-#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
-
-typedef pthread_t xthread_t;
-#define X_THREAD_PROC(name) static void *name (void *thr_arg)
-#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
-
-// the broken bsd's once more
-#ifndef PTHREAD_STACK_MIN
-# define PTHREAD_STACK_MIN 0
-#endif
-
-#ifndef X_STACKSIZE
-# define X_STACKSIZE sizeof (long) * 4096
-#endif
-
-static int
-thread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
-{
- int retval;
- sigset_t fullsigset, oldsigset;
- pthread_attr_t attr;
-
- pthread_attr_init (&attr);
- pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
- pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN);
-#ifdef PTHREAD_SCOPE_PROCESS
- pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
-#endif
-
- sigfillset (&fullsigset);
-
- pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
- retval = pthread_create (tid, &attr, proc, arg) == 0;
- pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
-
- pthread_attr_destroy (&attr);
-
- return retval;
-}
-
-#define respipe_read(a,b,c) read ((a), (b), (c))
-#define respipe_write(a,b,c) write ((a), (b), (c))
-#define respipe_close(a) close ((a))
-
-#endif
-
-#endif
-
+++ /dev/null
-Revision history for libev, a high-performance and full-featured event loop.
-
-4.04 Wed Feb 16 09:01:51 CET 2011
- - fix two problems in the native win32 backend, where reuse of fd's
- with different underlying handles caused handles not to be removed
- or added to the select set (analyzed and tested by Bert Belder).
- - do no rely on ceil() in ev_e?poll.c.
- - backport libev to HP-UX versions before 11 v3.
- - configure did not detect nanosleep and clock_gettime properly when
- they are available in the libc (as opposed to -lrt).
-
-4.03 Tue Jan 11 14:37:25 CET 2011
- - officially support polling files with all backends.
- - support files, /dev/zero etc. the same way as select in the epoll
- backend, by generating events on our own.
- - ports backend: work around solaris bug 6874410 and many related ones
- (EINTR, maybe more), with no performance loss (note that the solaris
- bug report is actually wrong, reality is far more bizarre and broken
- than that).
- - define EV_READ/EV_WRITE as macros in event.h, as some programs use
- #ifdef to test for them.
- - new (experimental) function: ev_feed_signal.
- - new (to become default) EVFLAG_NOSIGMASK flag.
- - new EVBACKEND_MASK symbol.
- - updated COMMON IDIOMS SECTION.
-
-4.01 Fri Nov 5 21:51:29 CET 2010
- - automake fucked it up, apparently, --add-missing -f is not quite enough
- to make it update its files, so 4.00 didn't install ev++.h and
- event.h on make install. grrr.
- - ev_loop(count|depth) didn't return anything (Robin Haberkorn).
- - change EV_UNDEF to 0xffffffff to silence some overzealous compilers.
- - use "(libev) " prefix for all libev error messages now.
-
-4.00 Mon Oct 25 12:32:12 CEST 2010
- - "PORTING FROM LIBEV 3.X TO 4.X" (in ev.pod) is recommended reading.
- - ev_embed_stop did not correctly stop the watcher (very good
- testcase by Vladimir Timofeev).
- - ev_run will now always update the current loop time - it erroneously
- didn't when idle watchers were active, causing timers not to fire.
- - fix a bug where a timeout of zero caused the timer not to fire
- in the libevent emulation (testcase by Péter Szabó).
- - applied win32 fixes by Michael Lenaghan (also James Mansion).
- - replace EV_MINIMAL by EV_FEATURES.
- - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
- seems the former is *much* faster than the latter.
- - linux kernel version detection (for inotify bug workarounds)
- did not work properly.
- - reduce the number of spurious wake-ups with the ports backend.
- - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
- - do async init within ev_async_start, not ev_async_set, which avoids
- an API quirk where the set function must be called in the C++ API
- even when there is nothing to set.
- - add (undocumented) EV_ENABLE when adding events with kqueue,
- this might help with OS X, which seems to need it despite documenting
- not to need it (helpfully pointed out by Tilghman Lesher).
- - do not use poll by default on freebsd, it's broken (what isn't
- on freebsd...).
- - allow to embed epoll on kernels >= 2.6.32.
- - configure now prepends -O3, not appends it, so one can still
- override it.
- - ev.pod: greatly expanded the portability section, added a porting
- section, a description of watcher states and made lots of minor fixes.
- - disable poll backend on AIX, the poll header spams the namespace
- and it's not worth working around dead platforms (reported
- and analyzed by Aivars Kalvans).
- - improve header file compatibility of the standalone eventfd code
- in an obscure case.
- - implement EV_AVOID_STDIO option.
- - do not use sscanf to parse linux version number (smaller, faster,
- no sscanf dependency).
- - new EV_CHILD_ENABLE and EV_SIGNAL_ENABLE configurable settings.
- - update libev.m4 HAVE_CLOCK_SYSCALL test for newer glibcs.
- - add section on accept() problems to the manpage.
- - rename EV_TIMEOUT to EV_TIMER.
- - rename ev_loop_count/depth/verify/loop/unloop.
- - remove ev_default_destroy and ev_default_fork.
- - switch to two-digit minor version.
- - work around an apparent gentoo compiler bug.
- - define _DARWIN_UNLIMITED_SELECT. just so.
- - use enum instead of #define for most constants.
- - improve compatibility to older C++ compilers.
- - (experimental) ev_run/ev_default_loop/ev_break/ev_loop_new have now
- default arguments when compiled as C++.
- - enable automake dependency tracking.
- - ev_loop_new no longer leaks memory when loop creation failed.
- - new ev_cleanup watcher type.
-
-3.9 Thu Dec 31 07:59:59 CET 2009
- - signalfd is no longer used by default and has to be requested
- explicitly - this means that easy to catch bugs become hard to
- catch race conditions, but the users have spoken.
- - point out the unspecified signal mask in the documentation, and
- that this is a race condition regardless of EV_SIGNALFD.
- - backport inotify code to C89.
- - inotify file descriptors could leak into child processes.
- - ev_stat watchers could keep an errornous extra ref on the loop,
- preventing exit when unregistering all watchers (testcases
- provided by ry@tinyclouds.org).
- - implement EV_WIN32_HANDLE_TO_FD and EV_WIN32_CLOSE_FD configuration
- symbols to make it easier for apps to do their own fd management.
- - support EV_IDLE_ENABLE being disabled in ev++.h
- (patch by Didier Spezia).
- - take advantage of inotify_init1, if available, to set cloexec/nonblock
- on fd creation, to avoid races.
- - the signal handling pipe wasn't always initialised under windows
- (analysed by lekma).
- - changed minimum glibc requirement from glibc 2.9 to 2.7, for
- signalfd.
- - add missing string.h include (Denis F. Latypoff).
- - only replace ev_stat.prev when we detect an actual difference,
- so prev is (almost) always different to attr. this might
- have caused the problems with 04_stat.t.
- - add ev::timer->remaining () method to C++ API.
-
-3.8 Sun Aug 9 14:30:45 CEST 2009
- - incompatible change: do not necessarily reset signal handler
- to SIG_DFL when a sighandler is stopped.
- - ev_default_destroy did not properly free or zero some members,
- potentially causing crashes and memory corruption on repeated
- ev_default_destroy/ev_default_loop calls.
- - take advantage of signalfd on GNU/Linux systems.
- - document that the signal mask might be in an unspecified
- state when using libev's signal handling.
- - take advantage of some GNU/Linux calls to set cloexec/nonblock
- on fd creation, to avoid race conditions.
-
-3.7 Fri Jul 17 16:36:32 CEST 2009
- - ev_unloop and ev_loop wrongly used a global variable to exit loops,
- instead of using a per-loop variable (bug caught by accident...).
- - the ev_set_io_collect_interval interpretation has changed.
- - add new functionality: ev_set_userdata, ev_userdata,
- ev_set_invoke_pending_cb, ev_set_loop_release_cb,
- ev_invoke_pending, ev_pending_count, together with a long example
- about thread locking.
- - add ev_timer_remaining (as requested by Denis F. Latypoff).
- - add ev_loop_depth.
- - calling ev_unloop in fork/prepare watchers will no longer poll
- for new events.
- - Denis F. Latypoff corrected many typos in example code snippets.
- - honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
- check that the syscall number is available before trying to
- use it (reported by ry@tinyclouds).
- - use GetSystemTimeAsFileTime instead of _timeb on windows, for
- slightly higher accuracy.
- - properly declare ev_loop_verify and ev_now_update even when
- !EV_MULTIPLICITY.
- - do not compile in any priority code when EV_MAXPRI == EV_MINPRI.
- - support EV_MINIMAL==2 for a reduced API.
- - actually 0-initialise struct sigaction when installing signals.
- - add section on hibernate and stopped processes to ev_timer docs.
-
-3.6 Tue Apr 28 02:49:30 CEST 2009
- - multiple timers becoming ready within an event loop iteration
- will be invoked in the "correct" order now.
- - do not leave the event loop early just because we have no active
- watchers, fixing a problem when embedding a kqueue loop
- that has active kernel events but no registered watchers
- (reported by blacksand blacksand).
- - correctly zero the idx values for arrays, so destroying and
- reinitialising the default loop actually works (patch by
- Malek Hadj-Ali).
- - implement ev_suspend and ev_resume.
- - new EV_CUSTOM revents flag for use by applications.
- - add documentation section about priorites.
- - add a glossary to the dcoumentation.
- - extend the ev_fork description slightly.
- - optimize a jump out of call_pending.
-
-3.53 Sun Feb 15 02:38:20 CET 2009
- - fix a bug in event pipe creation on win32 that would cause a
- failed assertion on event loop creation (patch by Malek Hadj-Ali).
- - probe for CLOCK_REALTIME support at runtime as well and fall
- back to gettimeofday if there is an error, to support older
- operating systems with newer header files/libraries.
- - prefer gettimeofday over clock_gettime with USE_CLOCK_SYSCALL
- (default most everywhere), otherwise not.
-
-3.52 Wed Jan 7 21:43:02 CET 2009
- - fix compilation of select backend in fd_set mode when NFDBITS is
- missing (to get it to compile on QNX, reported by Rodrigo Campos).
- - better select-nfds handling when select backend is in fd_set mode.
- - diagnose fd_set overruns when select backend is in fd_set mode.
- - due to a thinko, instead of disabling everything but
- select on the borked OS X platform, everything but select was
- allowed (reported by Emanuele Giaquinta).
- - actually verify that local and remote port are matching in
- libev's socketpair emulation, which makes denial-of-service
- attacks harder (but not impossible - it's windows). Make sure
- it even works under vista, which thinks that getpeer/sockname
- should return fantasy port numbers.
- - include "libev" in all assertion messages for potentially
- clearer diagnostics.
- - event_get_version (libevent compatibility) returned
- a useless string instead of the expected version string
- (patch by W.C.A. Wijngaards).
-
-3.51 Wed Dec 24 23:00:11 CET 2008
- - fix a bug where an inotify watcher was added twice, causing
- freezes on hash collisions (reported and analysed by Graham Leggett).
- - new config symbol, EV_USE_CLOCK_SYSCALL, to make libev use
- a direct syscall - slower, but no dependency on librt et al.
- - assume negative return values != -1 signals success of port_getn
- (http://cvs.epicsol.org/cgi/viewcvs.cgi/epic5/source/newio.c?rev=1.52)
- (no known failure reports, but it doesn't hurt).
- - fork detection in ev_embed now stops and restarts the watcher
- automatically.
- - EXPERIMENTAL: default the method to operator () in ev++.h,
- to make it nicer to use functors (requested by Benedek László).
- - fixed const object callbacks in ev++.h.
- - replaced loop_ref argument of watcher.set (loop) by a direct
- ev_loop * in ev++.h, to avoid clashes with functor patch.
- - do not try to watch the empty string via inotify.
- - inotify watchers could be leaked under certain circumstances.
- - OS X 10.5 is actually even more broken than earlier versions,
- so fall back to select on that piece of garbage.
- - fixed some weirdness in the ev_embed documentation.
-
-3.49 Wed Nov 19 11:26:53 CET 2008
- - ev_stat watchers will now use inotify as a mere hint on
- kernels <2.6.25, or if the filesystem is not in the
- "known to be good" list.
- - better mingw32 compatibility (it's not as borked as native win32)
- (analysed by Roger Pack).
- - include stdio.h in the example program, as too many people are
- confused by the weird C language otherwise. I guess the next thing
- I get told is that the "..." ellipses in the examples don't compile
- with their C compiler.
-
-3.48 Thu Oct 30 09:02:37 CET 2008
- - further optimise away the EPOLL_CTL_ADD/MOD combo in the epoll
- backend by assuming the kernel event mask hasn't changed if
- ADD fails with EEXIST.
- - work around spurious event notification bugs in epoll by using
- a 32-bit generation counter. recreate kernel state if we receive
- spurious notifications or unwanted events. this is very costly,
- but I didn't come up with this horrible design.
- - use memset to initialise most arrays now and do away with the
- init functions.
- - expand time-out strategies into a "Be smart about timeouts" section.
- - drop the "struct" from all ev_watcher declarations in the
- documentation and did other clarifications (yeah, it was a mistake
- to have a struct AND a function called ev_loop).
- - fix a bug where ev_default would not initialise the default
- loop again after it was destroyed with ev_default_destroy.
- - rename syserr to ev_syserr to avoid name clashes when embedding,
- do similar changes for event.c.
-
-3.45 Tue Oct 21 21:59:26 CEST 2008
- - disable inotify usage on linux <2.6.25, as it is broken
- (reported by Yoann Vandoorselaere).
- - ev_stat erroneously would try to add inotify watchers
- even when inotify wasn't available (this should only
- have a performance impact).
- - ev_once now passes both timeout and io to the callback if both
- occur concurrently, instead of giving timeouts precedence.
- - disable EV_USE_INOTIFY when sys/inotify.h is too old.
-
-3.44 Mon Sep 29 05:18:39 CEST 2008
- - embed watchers now automatically invoke ev_loop_fork on the
- embedded loop when the parent loop forks.
- - new function: ev_now_update (loop).
- - verify_watcher was not marked static.
- - improve the "associating..." manpage section.
- - documentation tweaks here and there.
-
-3.43 Sun Jul 6 05:34:41 CEST 2008
- - include more include files on windows to get struct _stati64
- (reported by Chris Hulbert, but doesn't quite fix his issue).
- - add missing #include <io.h> in ev.c on windows (reported by
- Matt Tolton).
-
-3.42 Tue Jun 17 12:12:07 CEST 2008
- - work around yet another windows bug: FD_SET actually adds fd's
- multiple times to the fd_*SET*, despite official MSN docs claiming
- otherwise. Reported and well-analysed by Matt Tolton.
- - define NFDBITS to 0 when EV_SELECT_IS_WINSOCKET to make it compile
- (reported any analysed by Chris Hulbert).
- - fix a bug in ev_ebadf (this function is only used to catch
- programming errors in the libev user). reported by Matt Tolton.
- - fix a bug in fd_intern on win32 (could lead to compile errors
- under some circumstances, but would work correctly if it compiles).
- reported by Matt Tolton.
- - (try to) work around missing lstat on windows.
- - pass in the write fd set as except fd set under windows. windows
- is so uncontrollably lame that it requires this. this means that
- switching off oobinline is not supported (but tcp/ip doesn't
- have oob, so that would be stupid anyways.
- - use posix module symbol to auto-detect monotonic clock presence
- and some other default values.
-
-3.41 Fri May 23 18:42:54 CEST 2008
- - work around an obscure bug in winsocket select: if you
- provide only empty fd sets then select returns WSAEINVAL. how sucky.
- - improve timer scheduling stability and reduce use of time_epsilon.
- - use 1-based 2-heap for EV_MINIMAL, simplifies code, reduces
- codesize and makes for better cache-efficiency.
- - use 3-based 4-heap for !EV_MINIMAL. this makes better use
- of cpu cache lines and gives better growth behaviour than
- 2-based heaps.
- - cache timestamp within heap for !EV_MINIMAL, to avoid random
- memory accesses.
- - document/add EV_USE_4HEAP and EV_HEAP_CACHE_AT.
- - fix a potential aliasing issue in ev_timer_again.
- - add/document ev_periodic_at, retract direct access to ->at.
- - improve ev_stat docs.
- - add portability requirements section.
- - fix manpage headers etc.
- - normalise WSA error codes to lower range on windows.
- - add consistency check code that can be called automatically
- or on demand to check for internal structures (ev_loop_verify).
-
-3.31 Wed Apr 16 20:45:04 CEST 2008
- - added last minute fix for ev_poll.c by Brandon Black.
-
-3.3 Wed Apr 16 19:04:10 CEST 2008
- - event_base_loopexit should return 0 on success
- (W.C.A. Wijngaards).
- - added linux eventfd support.
- - try to autodetect epoll and inotify support
- by libc header version if not using autoconf.
- - new symbols: EV_DEFAULT_UC and EV_DEFAULT_UC_.
- - declare functions defined in ev.h as inline if
- C99 or gcc are available.
- - enable inlining with gcc versions 2 and 3.
- - work around broken poll implementations potentially
- not clearing revents field in ev_poll (Brandon Black)
- (no such systems are known at this time).
- - work around a bug in realloc on openbsd and darwin,
- also makes the erroneous valgrind complaints
- go away (noted by various people).
- - fix ev_async_pending, add c++ wrapper for ev_async
- (based on patch sent by Johannes Deisenhofer).
- - add sensible set method to ev::embed.
- - made integer constants type int in ev.h.
-
-3.2 Wed Apr 2 17:11:19 CEST 2008
- - fix a 64 bit overflow issue in the select backend,
- by using fd_mask instead of int for the mask.
- - rename internal sighandler to avoid clash with very old perls.
- - entering ev_loop will not clear the ONESHOT or NONBLOCKING
- flags of any outer loops anymore.
- - add ev_async_pending.
-
-3.1 Thu Mar 13 13:45:22 CET 2008
- - implement ev_async watchers.
- - only initialise signal pipe on demand.
- - make use of sig_atomic_t configurable.
- - improved documentation.
-
-3.0 Mon Jan 28 13:14:47 CET 2008
- - API/ABI bump to version 3.0.
- - ev++.h includes "ev.h" by default now, not <ev.h>.
- - slightly improved documentation.
- - speed up signal detection after a fork.
- - only optionally return trace status changed in ev_child
- watchers.
- - experimental (and undocumented) loop wrappers for ev++.h.
-
-2.01 Tue Dec 25 08:04:41 CET 2007
- - separate Changes file.
- - fix ev_path_set => ev_stat_set typo.
- - remove event_compat.h from the libev tarball.
- - change how include files are found.
- - doc updates.
- - update licenses, explicitly allow for GPL relicensing.
-
-2.0 Sat Dec 22 17:47:03 CET 2007
- - new ev_sleep, ev_set_(io|timeout)_collect_interval.
- - removed epoll from embeddable fd set.
- - fix embed watchers.
- - renamed ev_embed.loop to other.
- - added exported Symbol tables.
- - undefine member wrapper macros at the end of ev.c.
- - respect EV_H in ev++.h.
-
-1.86 Tue Dec 18 02:36:57 CET 2007
- - fix memleak on loop destroy (not relevant for perl).
-
-1.85 Fri Dec 14 20:32:40 CET 2007
- - fix some aliasing issues w.r.t. timers and periodics
- (not relevant for perl).
-
-(for historic versions refer to EV/Changes, found in the Perl interface)
-
-0.1 Wed Oct 31 21:31:48 CET 2007
- - original version; hacked together in <24h.
-
+++ /dev/null
-All files in libev are Copyright (C)2007,2008,2009 Marc Alexander Lehmann.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials provided
- with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Alternatively, the contents of this package may be used under the terms
-of the GNU General Public License ("GPL") version 2 or any later version,
-in which case the provisions of the GPL are applicable instead of the
-above. If you wish to allow the use of your version of this package only
-under the terms of the GPL and not to allow others to use your version of
-this file under the BSD license, indicate your decision by deleting the
-provisions above and replace them with the notice and other provisions
-required by the GPL in this and the other files of this package. If you do
-not delete the provisions above, a recipient may use your version of this
-file under either the BSD or the GPL.
+++ /dev/null
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-.NOEXPORT:
+++ /dev/null
-libev is a high-performance event loop/event model with lots of features.
-(see benchmark at http://libev.schmorp.de/bench.html)
-
-
-ABOUT
-
- Homepage: http://software.schmorp.de/pkg/libev
- Mailinglist: libev@lists.schmorp.de
- http://lists.schmorp.de/cgi-bin/mailman/listinfo/libev
- Library Documentation: http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod
-
- Libev is modelled (very losely) after libevent and the Event perl
- module, but is faster, scales better and is more correct, and also more
- featureful. And also smaller. Yay.
-
- Some of the specialties of libev not commonly found elsewhere are:
-
- - extensive and detailed, readable documentation (not doxygen garbage).
- - fully supports fork, can detect fork in various ways and automatically
- re-arms kernel mechanisms that do not support fork.
- - highly optimised select, poll, epoll, kqueue and event ports backends.
- - filesystem object (path) watching (with optional linux inotify support).
- - wallclock-based times (using absolute time, cron-like).
- - relative timers/timeouts (handle time jumps).
- - fast intra-thread communication between multiple
- event loops (with optional fast linux eventfd backend).
- - extremely easy to embed.
- - very small codebase, no bloated library.
- - fully extensible by being able to plug into the event loop,
- integrate other event loops, integrate other event loop users.
- - very little memory use (small watchers, small event loop data).
- - optional C++ interface allowing method and function callbacks
- at no extra memory or runtime overhead.
- - optional Perl interface with similar characteristics (capable
- of running Glib/Gtk2 on libev, interfaces with Net::SNMP and
- libadns).
- - support for other languages (multiple C++ interfaces, D, Ruby,
- Python) available from third-parties.
-
- Examples of programs that embed libev: the EV perl module,
- rxvt-unicode, gvpe (GNU Virtual Private Ethernet), the Deliantra MMORPG
- server (http://www.deliantra.net/), Rubinius (a next-generation Ruby
- VM), the Ebb web server, the Rev event toolkit.
-
-
-CONTRIBUTORS
-
- libev was written and designed by Marc Lehmann and Emanuele Giaquinta.
-
- The following people sent in patches or made other noteworthy
- contributions to the design (for minor patches, see the Changes
- file. If I forgot to include you, please shout at me, it was an
- accident):
-
- W.C.A. Wijngaards
- Christopher Layne
- Chris Brody
-
+++ /dev/null
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- m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
-m4_define([_lt_decl_varnames_tagged],
-[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
-
-
-# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
-# ------------------------------------------------
-m4_define([lt_decl_all_varnames],
-[_$0(m4_quote(m4_default([$1], [[, ]])),
- m4_if([$2], [],
- m4_quote(lt_decl_varnames),
- m4_quote(m4_shift($@))))[]dnl
-])
-m4_define([_lt_decl_all_varnames],
-[lt_join($@, lt_decl_varnames_tagged([$1],
- lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
-])
-
-
-# _LT_CONFIG_STATUS_DECLARE([VARNAME])
-# ------------------------------------
-# Quote a variable value, and forward it to `config.status' so that its
-# declaration there will have the same value as in `configure'. VARNAME
-# must have a single quote delimited value for this to work.
-m4_define([_LT_CONFIG_STATUS_DECLARE],
-[$1='`$ECHO "X$][$1" | $Xsed -e "$delay_single_quote_subst"`'])
-
-
-# _LT_CONFIG_STATUS_DECLARATIONS
-# ------------------------------
-# We delimit libtool config variables with single quotes, so when
-# we write them to config.status, we have to be sure to quote all
-# embedded single quotes properly. In configure, this macro expands
-# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
-#
-# <var>='`$ECHO "X$<var>" | $Xsed -e "$delay_single_quote_subst"`'
-m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
-[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
- [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
-
-
-# _LT_LIBTOOL_TAGS
-# ----------------
-# Output comment and list of tags supported by the script
-m4_defun([_LT_LIBTOOL_TAGS],
-[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
-available_tags="_LT_TAGS"dnl
-])
-
-
-# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
-# -----------------------------------
-# Extract the dictionary values for VARNAME (optionally with TAG) and
-# expand to a commented shell variable setting:
-#
-# # Some comment about what VAR is for.
-# visible_name=$lt_internal_name
-m4_define([_LT_LIBTOOL_DECLARE],
-[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
- [description])))[]dnl
-m4_pushdef([_libtool_name],
- m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
-m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
- [0], [_libtool_name=[$]$1],
- [1], [_libtool_name=$lt_[]$1],
- [2], [_libtool_name=$lt_[]$1],
- [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
-m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
-])
-
-
-# _LT_LIBTOOL_CONFIG_VARS
-# -----------------------
-# Produce commented declarations of non-tagged libtool config variables
-# suitable for insertion in the LIBTOOL CONFIG section of the `libtool'
-# script. Tagged libtool config variables (even for the LIBTOOL CONFIG
-# section) are produced by _LT_LIBTOOL_TAG_VARS.
-m4_defun([_LT_LIBTOOL_CONFIG_VARS],
-[m4_foreach([_lt_var],
- m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
- [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
-
-
-# _LT_LIBTOOL_TAG_VARS(TAG)
-# -------------------------
-m4_define([_LT_LIBTOOL_TAG_VARS],
-[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
- [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
-
-
-# _LT_TAGVAR(VARNAME, [TAGNAME])
-# ------------------------------
-m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
-
-
-# _LT_CONFIG_COMMANDS
-# -------------------
-# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of
-# variables for single and double quote escaping we saved from calls
-# to _LT_DECL, we can put quote escaped variables declarations
-# into `config.status', and then the shell code to quote escape them in
-# for loops in `config.status'. Finally, any additional code accumulated
-# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
-m4_defun([_LT_CONFIG_COMMANDS],
-[AC_PROVIDE_IFELSE([LT_OUTPUT],
- dnl If the libtool generation code has been placed in $CONFIG_LT,
- dnl instead of duplicating it all over again into config.status,
- dnl then we will have config.status run $CONFIG_LT later, so it
- dnl needs to know what name is stored there:
- [AC_CONFIG_COMMANDS([libtool],
- [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
- dnl If the libtool generation code is destined for config.status,
- dnl expand the accumulated commands and init code now:
- [AC_CONFIG_COMMANDS([libtool],
- [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
-])#_LT_CONFIG_COMMANDS
-
-
-# Initialize.
-m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
-[
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-sed_quote_subst='$sed_quote_subst'
-double_quote_subst='$double_quote_subst'
-delay_variable_subst='$delay_variable_subst'
-_LT_CONFIG_STATUS_DECLARATIONS
-LTCC='$LTCC'
-LTCFLAGS='$LTCFLAGS'
-compiler='$compiler_DEFAULT'
-
-# Quote evaled strings.
-for var in lt_decl_all_varnames([[ \
-]], lt_decl_quote_varnames); do
- case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
- *[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Double-quote double-evaled strings.
-for var in lt_decl_all_varnames([[ \
-]], lt_decl_dquote_varnames); do
- case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
- *[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Fix-up fallback echo if it was mangled by the above quoting rules.
-case \$lt_ECHO in
-*'\\\[$]0 --fallback-echo"')dnl "
- lt_ECHO=\`\$ECHO "X\$lt_ECHO" | \$Xsed -e 's/\\\\\\\\\\\\\\\[$]0 --fallback-echo"\[$]/\[$]0 --fallback-echo"/'\`
- ;;
-esac
-
-_LT_OUTPUT_LIBTOOL_INIT
-])
-
-
-# LT_OUTPUT
-# ---------
-# This macro allows early generation of the libtool script (before
-# AC_OUTPUT is called), incase it is used in configure for compilation
-# tests.
-AC_DEFUN([LT_OUTPUT],
-[: ${CONFIG_LT=./config.lt}
-AC_MSG_NOTICE([creating $CONFIG_LT])
-cat >"$CONFIG_LT" <<_LTEOF
-#! $SHELL
-# Generated by $as_me.
-# Run this file to recreate a libtool stub with the current configuration.
-
-lt_cl_silent=false
-SHELL=\${CONFIG_SHELL-$SHELL}
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AS_SHELL_SANITIZE
-_AS_PREPARE
-
-exec AS_MESSAGE_FD>&1
-exec AS_MESSAGE_LOG_FD>>config.log
-{
- echo
- AS_BOX([Running $as_me.])
-} >&AS_MESSAGE_LOG_FD
-
-lt_cl_help="\
-\`$as_me' creates a local libtool stub from the current configuration,
-for use in further configure time tests before the real libtool is
-generated.
-
-Usage: $[0] [[OPTIONS]]
-
- -h, --help print this help, then exit
- -V, --version print version number, then exit
- -q, --quiet do not print progress messages
- -d, --debug don't remove temporary files
-
-Report bugs to <bug-libtool@gnu.org>."
-
-lt_cl_version="\
-m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
-m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
-configured by $[0], generated by m4_PACKAGE_STRING.
-
-Copyright (C) 2008 Free Software Foundation, Inc.
-This config.lt script is free software; the Free Software Foundation
-gives unlimited permision to copy, distribute and modify it."
-
-while test $[#] != 0
-do
- case $[1] in
- --version | --v* | -V )
- echo "$lt_cl_version"; exit 0 ;;
- --help | --h* | -h )
- echo "$lt_cl_help"; exit 0 ;;
- --debug | --d* | -d )
- debug=: ;;
- --quiet | --q* | --silent | --s* | -q )
- lt_cl_silent=: ;;
-
- -*) AC_MSG_ERROR([unrecognized option: $[1]
-Try \`$[0] --help' for more information.]) ;;
-
- *) AC_MSG_ERROR([unrecognized argument: $[1]
-Try \`$[0] --help' for more information.]) ;;
- esac
- shift
-done
-
-if $lt_cl_silent; then
- exec AS_MESSAGE_FD>/dev/null
-fi
-_LTEOF
-
-cat >>"$CONFIG_LT" <<_LTEOF
-_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
-_LTEOF
-
-cat >>"$CONFIG_LT" <<\_LTEOF
-AC_MSG_NOTICE([creating $ofile])
-_LT_OUTPUT_LIBTOOL_COMMANDS
-AS_EXIT(0)
-_LTEOF
-chmod +x "$CONFIG_LT"
-
-# configure is writing to config.log, but config.lt does its own redirection,
-# appending to config.log, which fails on DOS, as config.log is still kept
-# open by configure. Here we exec the FD to /dev/null, effectively closing
-# config.log, so it can be properly (re)opened and appended to by config.lt.
-if test "$no_create" != yes; then
- lt_cl_success=:
- test "$silent" = yes &&
- lt_config_lt_args="$lt_config_lt_args --quiet"
- exec AS_MESSAGE_LOG_FD>/dev/null
- $SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
- exec AS_MESSAGE_LOG_FD>>config.log
- $lt_cl_success || AS_EXIT(1)
-fi
-])# LT_OUTPUT
-
-
-# _LT_CONFIG(TAG)
-# ---------------
-# If TAG is the built-in tag, create an initial libtool script with a
-# default configuration from the untagged config vars. Otherwise add code
-# to config.status for appending the configuration named by TAG from the
-# matching tagged config vars.
-m4_defun([_LT_CONFIG],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_CONFIG_SAVE_COMMANDS([
- m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
- m4_if(_LT_TAG, [C], [
- # See if we are running on zsh, and set the options which allow our
- # commands through without removal of \ escapes.
- if test -n "${ZSH_VERSION+set}" ; then
- setopt NO_GLOB_SUBST
- fi
-
- cfgfile="${ofile}T"
- trap "$RM \"$cfgfile\"; exit 1" 1 2 15
- $RM "$cfgfile"
-
- cat <<_LT_EOF >> "$cfgfile"
-#! $SHELL
-
-# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
-# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
-# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
-# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-#
-_LT_COPYING
-_LT_LIBTOOL_TAGS
-
-# ### BEGIN LIBTOOL CONFIG
-_LT_LIBTOOL_CONFIG_VARS
-_LT_LIBTOOL_TAG_VARS
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
- case $host_os in
- aix3*)
- cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program. For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
- COLLECT_NAMES=
- export COLLECT_NAMES
-fi
-_LT_EOF
- ;;
- esac
-
- _LT_PROG_LTMAIN
-
- # We use sed instead of cat because bash on DJGPP gets confused if
- # if finds mixed CR/LF and LF-only lines. Since sed operates in
- # text mode, it properly converts lines to CR/LF. This bash problem
- # is reportedly fixed, but why not run on old versions too?
- sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- _LT_PROG_XSI_SHELLFNS
-
- sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- mv -f "$cfgfile" "$ofile" ||
- (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
- chmod +x "$ofile"
-],
-[cat <<_LT_EOF >> "$ofile"
-
-dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
-dnl in a comment (ie after a #).
-# ### BEGIN LIBTOOL TAG CONFIG: $1
-_LT_LIBTOOL_TAG_VARS(_LT_TAG)
-# ### END LIBTOOL TAG CONFIG: $1
-_LT_EOF
-])dnl /m4_if
-],
-[m4_if([$1], [], [
- PACKAGE='$PACKAGE'
- VERSION='$VERSION'
- TIMESTAMP='$TIMESTAMP'
- RM='$RM'
- ofile='$ofile'], [])
-])dnl /_LT_CONFIG_SAVE_COMMANDS
-])# _LT_CONFIG
-
-
-# LT_SUPPORTED_TAG(TAG)
-# ---------------------
-# Trace this macro to discover what tags are supported by the libtool
-# --tag option, using:
-# autoconf --trace 'LT_SUPPORTED_TAG:$1'
-AC_DEFUN([LT_SUPPORTED_TAG], [])
-
-
-# C support is built-in for now
-m4_define([_LT_LANG_C_enabled], [])
-m4_define([_LT_TAGS], [])
-
-
-# LT_LANG(LANG)
-# -------------
-# Enable libtool support for the given language if not already enabled.
-AC_DEFUN([LT_LANG],
-[AC_BEFORE([$0], [LT_OUTPUT])dnl
-m4_case([$1],
- [C], [_LT_LANG(C)],
- [C++], [_LT_LANG(CXX)],
- [Java], [_LT_LANG(GCJ)],
- [Fortran 77], [_LT_LANG(F77)],
- [Fortran], [_LT_LANG(FC)],
- [Windows Resource], [_LT_LANG(RC)],
- [m4_ifdef([_LT_LANG_]$1[_CONFIG],
- [_LT_LANG($1)],
- [m4_fatal([$0: unsupported language: "$1"])])])dnl
-])# LT_LANG
-
-
-# _LT_LANG(LANGNAME)
-# ------------------
-m4_defun([_LT_LANG],
-[m4_ifdef([_LT_LANG_]$1[_enabled], [],
- [LT_SUPPORTED_TAG([$1])dnl
- m4_append([_LT_TAGS], [$1 ])dnl
- m4_define([_LT_LANG_]$1[_enabled], [])dnl
- _LT_LANG_$1_CONFIG($1)])dnl
-])# _LT_LANG
-
-
-# _LT_LANG_DEFAULT_CONFIG
-# -----------------------
-m4_defun([_LT_LANG_DEFAULT_CONFIG],
-[AC_PROVIDE_IFELSE([AC_PROG_CXX],
- [LT_LANG(CXX)],
- [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_F77],
- [LT_LANG(F77)],
- [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
-
-AC_PROVIDE_IFELSE([AC_PROG_FC],
- [LT_LANG(FC)],
- [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
-
-dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
-dnl pulling things in needlessly.
-AC_PROVIDE_IFELSE([AC_PROG_GCJ],
- [LT_LANG(GCJ)],
- [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
- [LT_LANG(GCJ)],
- [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
- [LT_LANG(GCJ)],
- [m4_ifdef([AC_PROG_GCJ],
- [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
- m4_ifdef([A][M_PROG_GCJ],
- [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
- m4_ifdef([LT_PROG_GCJ],
- [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
-
-AC_PROVIDE_IFELSE([LT_PROG_RC],
- [LT_LANG(RC)],
- [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
-])# _LT_LANG_DEFAULT_CONFIG
-
-# Obsolete macros:
-AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
-AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
-AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
-AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
-dnl AC_DEFUN([AC_LIBTOOL_F77], [])
-dnl AC_DEFUN([AC_LIBTOOL_FC], [])
-dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
-
-
-# _LT_TAG_COMPILER
-# ----------------
-m4_defun([_LT_TAG_COMPILER],
-[AC_REQUIRE([AC_PROG_CC])dnl
-
-_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
-_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
-_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
-_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-])# _LT_TAG_COMPILER
-
-
-# _LT_COMPILER_BOILERPLATE
-# ------------------------
-# Check for compiler boilerplate output or warnings with
-# the simple compiler test code.
-m4_defun([_LT_COMPILER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-])# _LT_COMPILER_BOILERPLATE
-
-
-# _LT_LINKER_BOILERPLATE
-# ----------------------
-# Check for linker boilerplate output or warnings with
-# the simple link test code.
-m4_defun([_LT_LINKER_BOILERPLATE],
-[m4_require([_LT_DECL_SED])dnl
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-])# _LT_LINKER_BOILERPLATE
-
-# _LT_REQUIRED_DARWIN_CHECKS
-# -------------------------
-m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
- case $host_os in
- rhapsody* | darwin*)
- AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
- AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
- AC_CHECK_TOOL([LIPO], [lipo], [:])
- AC_CHECK_TOOL([OTOOL], [otool], [:])
- AC_CHECK_TOOL([OTOOL64], [otool64], [:])
- _LT_DECL([], [DSYMUTIL], [1],
- [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
- _LT_DECL([], [NMEDIT], [1],
- [Tool to change global to local symbols on Mac OS X])
- _LT_DECL([], [LIPO], [1],
- [Tool to manipulate fat objects and archives on Mac OS X])
- _LT_DECL([], [OTOOL], [1],
- [ldd/readelf like tool for Mach-O binaries on Mac OS X])
- _LT_DECL([], [OTOOL64], [1],
- [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
-
- AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
- [lt_cv_apple_cc_single_mod=no
- if test -z "${LT_MULTI_MODULE}"; then
- # By default we will add the -single_module flag. You can override
- # by either setting the environment variable LT_MULTI_MODULE
- # non-empty at configure time, or by adding -multi_module to the
- # link flags.
- rm -rf libconftest.dylib*
- echo "int foo(void){return 1;}" > conftest.c
- echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
- $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
- -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
- _lt_result=$?
- if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
- lt_cv_apple_cc_single_mod=yes
- else
- cat conftest.err >&AS_MESSAGE_LOG_FD
- fi
- rm -rf libconftest.dylib*
- rm -f conftest.*
- fi])
- AC_CACHE_CHECK([for -exported_symbols_list linker flag],
- [lt_cv_ld_exported_symbols_list],
- [lt_cv_ld_exported_symbols_list=no
- save_LDFLAGS=$LDFLAGS
- echo "_main" > conftest.sym
- LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [lt_cv_ld_exported_symbols_list=yes],
- [lt_cv_ld_exported_symbols_list=no])
- LDFLAGS="$save_LDFLAGS"
- ])
- case $host_os in
- rhapsody* | darwin1.[[012]])
- _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
- darwin1.*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
- darwin*) # darwin 5.x on
- # if running on 10.5 or later, the deployment target defaults
- # to the OS version, if on x86, and 10.4, the deployment
- # target defaults to 10.4. Don't you love it?
- case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
- 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
- 10.[[012]]*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
- 10.*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
- esac
- ;;
- esac
- if test "$lt_cv_apple_cc_single_mod" = "yes"; then
- _lt_dar_single_mod='$single_module'
- fi
- if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
- _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
- else
- _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
- fi
- if test "$DSYMUTIL" != ":"; then
- _lt_dsymutil='~$DSYMUTIL $lib || :'
- else
- _lt_dsymutil=
- fi
- ;;
- esac
-])
-
-
-# _LT_DARWIN_LINKER_FEATURES
-# --------------------------
-# Checks for linker and compiler features on darwin
-m4_defun([_LT_DARWIN_LINKER_FEATURES],
-[
- m4_require([_LT_REQUIRED_DARWIN_CHECKS])
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_automatic, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- _LT_TAGVAR(whole_archive_flag_spec, $1)=''
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined"
- case $cc_basename in
- ifort*) _lt_dar_can_shared=yes ;;
- *) _lt_dar_can_shared=$GCC ;;
- esac
- if test "$_lt_dar_can_shared" = "yes"; then
- output_verbose_link_cmd=echo
- _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
- _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
- _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
- m4_if([$1], [CXX],
-[ if test "$lt_cv_apple_cc_single_mod" != "yes"; then
- _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
- fi
-],[])
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
-])
-
-# _LT_SYS_MODULE_PATH_AIX
-# -----------------------
-# Links a minimal program and checks the executable
-# for the system default hardcoded library path. In most cases,
-# this is /usr/lib:/lib, but when the MPI compilers are used
-# the location of the communication and MPI libs are included too.
-# If we don't find anything, use the default library path according
-# to the aix ld manual.
-m4_defun([_LT_SYS_MODULE_PATH_AIX],
-[m4_require([_LT_DECL_SED])dnl
-AC_LINK_IFELSE(AC_LANG_PROGRAM,[
-lt_aix_libpath_sed='
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\(.*\)$/\1/
- p
- }
- }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
- aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi],[])
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-])# _LT_SYS_MODULE_PATH_AIX
-
-
-# _LT_SHELL_INIT(ARG)
-# -------------------
-m4_define([_LT_SHELL_INIT],
-[ifdef([AC_DIVERSION_NOTICE],
- [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],
- [AC_DIVERT_PUSH(NOTICE)])
-$1
-AC_DIVERT_POP
-])# _LT_SHELL_INIT
-
-
-# _LT_PROG_ECHO_BACKSLASH
-# -----------------------
-# Add some code to the start of the generated configure script which
-# will find an echo command which doesn't interpret backslashes.
-m4_defun([_LT_PROG_ECHO_BACKSLASH],
-[_LT_SHELL_INIT([
-# Check that we are running under the correct shell.
-SHELL=${CONFIG_SHELL-/bin/sh}
-
-case X$lt_ECHO in
-X*--fallback-echo)
- # Remove one level of quotation (which was required for Make).
- ECHO=`echo "$lt_ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`
- ;;
-esac
-
-ECHO=${lt_ECHO-echo}
-if test "X[$]1" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
-elif test "X[$]1" = X--fallback-echo; then
- # Avoid inline document here, it may be left over
- :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' ; then
- # Yippee, $ECHO works!
- :
-else
- # Restart under the correct shell.
- exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}
-fi
-
-if test "X[$]1" = X--fallback-echo; then
- # used as fallback echo
- shift
- cat <<_LT_EOF
-[$]*
-_LT_EOF
- exit 0
-fi
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-if test -z "$lt_ECHO"; then
- if test "X${echo_test_string+set}" != Xset; then
- # find a string as large as possible, as long as the shell can cope with it
- for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do
- # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
- if { echo_test_string=`eval $cmd`; } 2>/dev/null &&
- { test "X$echo_test_string" = "X$echo_test_string"; } 2>/dev/null
- then
- break
- fi
- done
- fi
-
- if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- :
- else
- # The Solaris, AIX, and Digital Unix default echo programs unquote
- # backslashes. This makes it impossible to quote backslashes using
- # echo "$something" | sed 's/\\/\\\\/g'
- #
- # So, first we look for a working echo in the user's PATH.
-
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for dir in $PATH /usr/ucb; do
- IFS="$lt_save_ifs"
- if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
- test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- ECHO="$dir/echo"
- break
- fi
- done
- IFS="$lt_save_ifs"
-
- if test "X$ECHO" = Xecho; then
- # We didn't find a better echo, so look for alternatives.
- if test "X`{ print -r '\t'; } 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`{ print -r "$echo_test_string"; } 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- # This shell has a builtin print -r that does the trick.
- ECHO='print -r'
- elif { test -f /bin/ksh || test -f /bin/ksh$ac_exeext; } &&
- test "X$CONFIG_SHELL" != X/bin/ksh; then
- # If we have ksh, try running configure again with it.
- ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
- export ORIGINAL_CONFIG_SHELL
- CONFIG_SHELL=/bin/ksh
- export CONFIG_SHELL
- exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}
- else
- # Try using printf.
- ECHO='printf %s\n'
- if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
- echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- # Cool, printf works
- :
- elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
- test "X$echo_testing_string" = 'X\t' &&
- echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
- export CONFIG_SHELL
- SHELL="$CONFIG_SHELL"
- export SHELL
- ECHO="$CONFIG_SHELL [$]0 --fallback-echo"
- elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
- test "X$echo_testing_string" = 'X\t' &&
- echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
- test "X$echo_testing_string" = "X$echo_test_string"; then
- ECHO="$CONFIG_SHELL [$]0 --fallback-echo"
- else
- # maybe with a smaller string...
- prev=:
-
- for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do
- if { test "X$echo_test_string" = "X`eval $cmd`"; } 2>/dev/null
- then
- break
- fi
- prev="$cmd"
- done
-
- if test "$prev" != 'sed 50q "[$]0"'; then
- echo_test_string=`eval $prev`
- export echo_test_string
- exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}
- else
- # Oops. We lost completely, so just stick with echo.
- ECHO=echo
- fi
- fi
- fi
- fi
- fi
-fi
-
-# Copy echo and quote the copy suitably for passing to libtool from
-# the Makefile, instead of quoting the original, which is used later.
-lt_ECHO=$ECHO
-if test "X$lt_ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then
- lt_ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"
-fi
-
-AC_SUBST(lt_ECHO)
-])
-_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
-_LT_DECL([], [ECHO], [1],
- [An echo program that does not interpret backslashes])
-])# _LT_PROG_ECHO_BACKSLASH
-
-
-# _LT_ENABLE_LOCK
-# ---------------
-m4_defun([_LT_ENABLE_LOCK],
-[AC_ARG_ENABLE([libtool-lock],
- [AS_HELP_STRING([--disable-libtool-lock],
- [avoid locking (might break parallel builds)])])
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.$ac_objext` in
- *ELF-32*)
- HPUX_IA64_MODE="32"
- ;;
- *ELF-64*)
- HPUX_IA64_MODE="64"
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-*-*-irix6*)
- # Find out which ABI we are using.
- echo '[#]line __oline__ "configure"' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- if test "$lt_cv_prog_gnu_ld" = yes; then
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -melf32bsmip"
- ;;
- *N32*)
- LD="${LD-ld} -melf32bmipn32"
- ;;
- *64-bit*)
- LD="${LD-ld} -melf64bmip"
- ;;
- esac
- else
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -32"
- ;;
- *N32*)
- LD="${LD-ld} -n32"
- ;;
- *64-bit*)
- LD="${LD-ld} -64"
- ;;
- esac
- fi
- fi
- rm -rf conftest*
- ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.o` in
- *32-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_i386_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_i386"
- ;;
- ppc64-*linux*|powerpc64-*linux*)
- LD="${LD-ld} -m elf32ppclinux"
- ;;
- s390x-*linux*)
- LD="${LD-ld} -m elf_s390"
- ;;
- sparc64-*linux*)
- LD="${LD-ld} -m elf32_sparc"
- ;;
- esac
- ;;
- *64-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_x86_64_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- ppc*-*linux*|powerpc*-*linux*)
- LD="${LD-ld} -m elf64ppc"
- ;;
- s390*-*linux*|s390*-*tpf*)
- LD="${LD-ld} -m elf64_s390"
- ;;
- sparc*-*linux*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-
-*-*-sco3.2v5*)
- # On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -belf"
- AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
- [AC_LANG_PUSH(C)
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
- AC_LANG_POP])
- if test x"$lt_cv_cc_needs_belf" != x"yes"; then
- # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS="$SAVE_CFLAGS"
- fi
- ;;
-sparc*-*solaris*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if AC_TRY_EVAL(ac_compile); then
- case `/usr/bin/file conftest.o` in
- *64-bit*)
- case $lt_cv_prog_gnu_ld in
- yes*) LD="${LD-ld} -m elf64_sparc" ;;
- *)
- if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
- LD="${LD-ld} -64"
- fi
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-esac
-
-need_locks="$enable_libtool_lock"
-])# _LT_ENABLE_LOCK
-
-
-# _LT_CMD_OLD_ARCHIVE
-# -------------------
-m4_defun([_LT_CMD_OLD_ARCHIVE],
-[AC_CHECK_TOOL(AR, ar, false)
-test -z "$AR" && AR=ar
-test -z "$AR_FLAGS" && AR_FLAGS=cru
-_LT_DECL([], [AR], [1], [The archiver])
-_LT_DECL([], [AR_FLAGS], [1])
-
-AC_CHECK_TOOL(STRIP, strip, :)
-test -z "$STRIP" && STRIP=:
-_LT_DECL([], [STRIP], [1], [A symbol stripping program])
-
-AC_CHECK_TOOL(RANLIB, ranlib, :)
-test -z "$RANLIB" && RANLIB=:
-_LT_DECL([], [RANLIB], [1],
- [Commands used to install an old-style archive])
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
- case $host_os in
- openbsd*)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
- ;;
- *)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
- ;;
- esac
- old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
-fi
-_LT_DECL([], [old_postinstall_cmds], [2])
-_LT_DECL([], [old_postuninstall_cmds], [2])
-_LT_TAGDECL([], [old_archive_cmds], [2],
- [Commands used to build an old-style archive])
-])# _LT_CMD_OLD_ARCHIVE
-
-
-# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------------------
-# Check whether the given compiler option works
-AC_DEFUN([_LT_COMPILER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
- [$2=no
- m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$3"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- $2=yes
- fi
- fi
- $RM conftest*
-])
-
-if test x"[$]$2" = xyes; then
- m4_if([$5], , :, [$5])
-else
- m4_if([$6], , :, [$6])
-fi
-])# _LT_COMPILER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
-
-
-# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
-# [ACTION-SUCCESS], [ACTION-FAILURE])
-# ----------------------------------------------------
-# Check whether the given linker option works
-AC_DEFUN([_LT_LINKER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_CACHE_CHECK([$1], [$2],
- [$2=no
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS $3"
- echo "$lt_simple_link_test_code" > conftest.$ac_ext
- if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
- # The linker can only warn and ignore the option if not recognized
- # So say no if there are warnings
- if test -s conftest.err; then
- # Append any errors to the config.log.
- cat conftest.err 1>&AS_MESSAGE_LOG_FD
- $ECHO "X$_lt_linker_boilerplate" | $Xsed -e '/^$/d' > conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if diff conftest.exp conftest.er2 >/dev/null; then
- $2=yes
- fi
- else
- $2=yes
- fi
- fi
- $RM -r conftest*
- LDFLAGS="$save_LDFLAGS"
-])
-
-if test x"[$]$2" = xyes; then
- m4_if([$4], , :, [$4])
-else
- m4_if([$5], , :, [$5])
-fi
-])# _LT_LINKER_OPTION
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
-
-
-# LT_CMD_MAX_LEN
-#---------------
-AC_DEFUN([LT_CMD_MAX_LEN],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-# find the maximum length of command line arguments
-AC_MSG_CHECKING([the maximum length of command line arguments])
-AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
- i=0
- teststring="ABCD"
-
- case $build_os in
- msdosdjgpp*)
- # On DJGPP, this test can blow up pretty badly due to problems in libc
- # (any single argument exceeding 2000 bytes causes a buffer overrun
- # during glob expansion). Even if it were fixed, the result of this
- # check would be larger than it should be.
- lt_cv_sys_max_cmd_len=12288; # 12K is about right
- ;;
-
- gnu*)
- # Under GNU Hurd, this test is not required because there is
- # no limit to the length of command line arguments.
- # Libtool will interpret -1 as no limit whatsoever
- lt_cv_sys_max_cmd_len=-1;
- ;;
-
- cygwin* | mingw* | cegcc*)
- # On Win9x/ME, this test blows up -- it succeeds, but takes
- # about 5 minutes as the teststring grows exponentially.
- # Worse, since 9x/ME are not pre-emptively multitasking,
- # you end up with a "frozen" computer, even though with patience
- # the test eventually succeeds (with a max line length of 256k).
- # Instead, let's just punt: use the minimum linelength reported by
- # all of the supported platforms: 8192 (on NT/2K/XP).
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- amigaos*)
- # On AmigaOS with pdksh, this test takes hours, literally.
- # So we just punt and use a minimum line length of 8192.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
- # This has been around since 386BSD, at least. Likely further.
- if test -x /sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
- elif test -x /usr/sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
- else
- lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
- fi
- # And add a safety zone
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- ;;
-
- interix*)
- # We know the value 262144 and hardcode it with a safety zone (like BSD)
- lt_cv_sys_max_cmd_len=196608
- ;;
-
- osf*)
- # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
- # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
- # nice to cause kernel panics so lets avoid the loop below.
- # First set a reasonable default.
- lt_cv_sys_max_cmd_len=16384
- #
- if test -x /sbin/sysconfig; then
- case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
- *1*) lt_cv_sys_max_cmd_len=-1 ;;
- esac
- fi
- ;;
- sco3.2v5*)
- lt_cv_sys_max_cmd_len=102400
- ;;
- sysv5* | sco5v6* | sysv4.2uw2*)
- kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
- if test -n "$kargmax"; then
- lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'`
- else
- lt_cv_sys_max_cmd_len=32768
- fi
- ;;
- *)
- lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len"; then
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- else
- # Make teststring a little bigger before we do anything with it.
- # a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8 ; do
- teststring=$teststring$teststring
- done
- SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
- # If test is not a shell built-in, we'll probably end up computing a
- # maximum length that is only half of the actual maximum length, but
- # we can't tell.
- while { test "X"`$SHELL [$]0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \
- = "XX$teststring$teststring"; } >/dev/null 2>&1 &&
- test $i != 17 # 1/2 MB should be enough
- do
- i=`expr $i + 1`
- teststring=$teststring$teststring
- done
- # Only check the string length outside the loop.
- lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
- teststring=
- # Add a significant safety factor because C++ compilers can tack on
- # massive amounts of additional arguments before passing them to the
- # linker. It appears as though 1/2 is a usable value.
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
- fi
- ;;
- esac
-])
-if test -n $lt_cv_sys_max_cmd_len ; then
- AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
-else
- AC_MSG_RESULT(none)
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-_LT_DECL([], [max_cmd_len], [0],
- [What is the maximum length of a command?])
-])# LT_CMD_MAX_LEN
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
-
-
-# _LT_HEADER_DLFCN
-# ----------------
-m4_defun([_LT_HEADER_DLFCN],
-[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
-])# _LT_HEADER_DLFCN
-
-
-# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
-# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
-# ----------------------------------------------------------------
-m4_defun([_LT_TRY_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test "$cross_compiling" = yes; then :
- [$4]
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-[#line __oline__ "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}]
-_LT_EOF
- if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
- (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) $1 ;;
- x$lt_dlneed_uscore) $2 ;;
- x$lt_dlunknown|x*) $3 ;;
- esac
- else :
- # compilation failed
- $3
- fi
-fi
-rm -fr conftest*
-])# _LT_TRY_DLOPEN_SELF
-
-
-# LT_SYS_DLOPEN_SELF
-# ------------------
-AC_DEFUN([LT_SYS_DLOPEN_SELF],
-[m4_require([_LT_HEADER_DLFCN])dnl
-if test "x$enable_dlopen" != xyes; then
- enable_dlopen=unknown
- enable_dlopen_self=unknown
- enable_dlopen_self_static=unknown
-else
- lt_cv_dlopen=no
- lt_cv_dlopen_libs=
-
- case $host_os in
- beos*)
- lt_cv_dlopen="load_add_on"
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ;;
-
- mingw* | pw32* | cegcc*)
- lt_cv_dlopen="LoadLibrary"
- lt_cv_dlopen_libs=
- ;;
-
- cygwin*)
- lt_cv_dlopen="dlopen"
- lt_cv_dlopen_libs=
- ;;
-
- darwin*)
- # if libdl is installed we need to link against it
- AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
- lt_cv_dlopen="dyld"
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ])
- ;;
-
- *)
- AC_CHECK_FUNC([shl_load],
- [lt_cv_dlopen="shl_load"],
- [AC_CHECK_LIB([dld], [shl_load],
- [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"],
- [AC_CHECK_FUNC([dlopen],
- [lt_cv_dlopen="dlopen"],
- [AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
- [AC_CHECK_LIB([svld], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
- [AC_CHECK_LIB([dld], [dld_link],
- [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"])
- ])
- ])
- ])
- ])
- ])
- ;;
- esac
-
- if test "x$lt_cv_dlopen" != xno; then
- enable_dlopen=yes
- else
- enable_dlopen=no
- fi
-
- case $lt_cv_dlopen in
- dlopen)
- save_CPPFLAGS="$CPPFLAGS"
- test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
- save_LDFLAGS="$LDFLAGS"
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
- save_LIBS="$LIBS"
- LIBS="$lt_cv_dlopen_libs $LIBS"
-
- AC_CACHE_CHECK([whether a program can dlopen itself],
- lt_cv_dlopen_self, [dnl
- _LT_TRY_DLOPEN_SELF(
- lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
- lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
- ])
-
- if test "x$lt_cv_dlopen_self" = xyes; then
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
- AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
- lt_cv_dlopen_self_static, [dnl
- _LT_TRY_DLOPEN_SELF(
- lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
- lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross)
- ])
- fi
-
- CPPFLAGS="$save_CPPFLAGS"
- LDFLAGS="$save_LDFLAGS"
- LIBS="$save_LIBS"
- ;;
- esac
-
- case $lt_cv_dlopen_self in
- yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
- *) enable_dlopen_self=unknown ;;
- esac
-
- case $lt_cv_dlopen_self_static in
- yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
- *) enable_dlopen_self_static=unknown ;;
- esac
-fi
-_LT_DECL([dlopen_support], [enable_dlopen], [0],
- [Whether dlopen is supported])
-_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
- [Whether dlopen of programs is supported])
-_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
- [Whether dlopen of statically linked programs is supported])
-])# LT_SYS_DLOPEN_SELF
-
-# Old name:
-AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
-
-
-# _LT_COMPILER_C_O([TAGNAME])
-# ---------------------------
-# Check to see if options -c and -o are simultaneously supported by compiler.
-# This macro does not hard code the compiler like AC_PROG_CC_C_O.
-m4_defun([_LT_COMPILER_C_O],
-[m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
- [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
- [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
- cd conftest
- mkdir out
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- lt_compiler_flag="-o out/conftest2.$ac_objext"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$lt_compile" 2>out/conftest.err)
- ac_status=$?
- cat out/conftest.err >&AS_MESSAGE_LOG_FD
- echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
- if (exit $ac_status) && test -s out/conftest2.$ac_objext
- then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
- $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
- if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
- _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
- fi
- fi
- chmod u+w . 2>&AS_MESSAGE_LOG_FD
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
- # template instantiation
- test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
- $RM out/* && rmdir out
- cd ..
- $RM -r conftest
- $RM conftest*
-])
-_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
- [Does compiler simultaneously support -c and -o options?])
-])# _LT_COMPILER_C_O
-
-
-# _LT_COMPILER_FILE_LOCKS([TAGNAME])
-# ----------------------------------
-# Check to see if we can do hard links to lock some files if needed
-m4_defun([_LT_COMPILER_FILE_LOCKS],
-[m4_require([_LT_ENABLE_LOCK])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-_LT_COMPILER_C_O([$1])
-
-hard_links="nottested"
-if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
- # do not overwrite the value of need_locks provided by the user
- AC_MSG_CHECKING([if we can lock with hard links])
- hard_links=yes
- $RM conftest*
- ln conftest.a conftest.b 2>/dev/null && hard_links=no
- touch conftest.a
- ln conftest.a conftest.b 2>&5 || hard_links=no
- ln conftest.a conftest.b 2>/dev/null && hard_links=no
- AC_MSG_RESULT([$hard_links])
- if test "$hard_links" = no; then
- AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
- need_locks=warn
- fi
-else
- need_locks=no
-fi
-_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
-])# _LT_COMPILER_FILE_LOCKS
-
-
-# _LT_CHECK_OBJDIR
-# ----------------
-m4_defun([_LT_CHECK_OBJDIR],
-[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
-[rm -f .libs 2>/dev/null
-mkdir .libs 2>/dev/null
-if test -d .libs; then
- lt_cv_objdir=.libs
-else
- # MS-DOS does not allow filenames that begin with a dot.
- lt_cv_objdir=_libs
-fi
-rmdir .libs 2>/dev/null])
-objdir=$lt_cv_objdir
-_LT_DECL([], [objdir], [0],
- [The name of the directory that contains temporary libtool files])dnl
-m4_pattern_allow([LT_OBJDIR])dnl
-AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/",
- [Define to the sub-directory in which libtool stores uninstalled libraries.])
-])# _LT_CHECK_OBJDIR
-
-
-# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
-# --------------------------------------
-# Check hardcoding attributes.
-m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
-[AC_MSG_CHECKING([how to hardcode library paths into programs])
-_LT_TAGVAR(hardcode_action, $1)=
-if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
- test -n "$_LT_TAGVAR(runpath_var, $1)" ||
- test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then
-
- # We can hardcode non-existent directories.
- if test "$_LT_TAGVAR(hardcode_direct, $1)" != no &&
- # If the only mechanism to avoid hardcoding is shlibpath_var, we
- # have to relink, otherwise we might link with an installed library
- # when we should be linking with a yet-to-be-installed one
- ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
- test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then
- # Linking always hardcodes the temporary library directory.
- _LT_TAGVAR(hardcode_action, $1)=relink
- else
- # We can link without hardcoding, and we can hardcode nonexisting dirs.
- _LT_TAGVAR(hardcode_action, $1)=immediate
- fi
-else
- # We cannot hardcode anything, or else we can only hardcode existing
- # directories.
- _LT_TAGVAR(hardcode_action, $1)=unsupported
-fi
-AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
-
-if test "$_LT_TAGVAR(hardcode_action, $1)" = relink ||
- test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then
- # Fast installation is not supported
- enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
- test "$enable_shared" = no; then
- # Fast installation is not necessary
- enable_fast_install=needless
-fi
-_LT_TAGDECL([], [hardcode_action], [0],
- [How to hardcode a shared library path into an executable])
-])# _LT_LINKER_HARDCODE_LIBPATH
-
-
-# _LT_CMD_STRIPLIB
-# ----------------
-m4_defun([_LT_CMD_STRIPLIB],
-[m4_require([_LT_DECL_EGREP])
-striplib=
-old_striplib=
-AC_MSG_CHECKING([whether stripping libraries is possible])
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
- test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
- test -z "$striplib" && striplib="$STRIP --strip-unneeded"
- AC_MSG_RESULT([yes])
-else
-# FIXME - insert some real tests, host_os isn't really good enough
- case $host_os in
- darwin*)
- if test -n "$STRIP" ; then
- striplib="$STRIP -x"
- old_striplib="$STRIP -S"
- AC_MSG_RESULT([yes])
- else
- AC_MSG_RESULT([no])
- fi
- ;;
- *)
- AC_MSG_RESULT([no])
- ;;
- esac
-fi
-_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
-_LT_DECL([], [striplib], [1])
-])# _LT_CMD_STRIPLIB
-
-
-# _LT_SYS_DYNAMIC_LINKER([TAG])
-# -----------------------------
-# PORTME Fill in your ld.so characteristics
-m4_defun([_LT_SYS_DYNAMIC_LINKER],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_OBJDUMP])dnl
-m4_require([_LT_DECL_SED])dnl
-AC_MSG_CHECKING([dynamic linker characteristics])
-m4_if([$1],
- [], [
-if test "$GCC" = yes; then
- case $host_os in
- darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
- *) lt_awk_arg="/^libraries:/" ;;
- esac
- lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e "s,=/,/,g"`
- if $ECHO "$lt_search_path_spec" | $GREP ';' >/dev/null ; then
- # if the path contains ";" then we assume it to be the separator
- # otherwise default to the standard path separator (i.e. ":") - it is
- # assumed that no part of a normal pathname contains ";" but that should
- # okay in the real world where ";" in dirpaths is itself problematic.
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e 's/;/ /g'`
- else
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- # Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary.
- lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
- for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path/$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
- else
- test -d "$lt_sys_path" && \
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
- fi
- done
- lt_search_path_spec=`$ECHO $lt_tmp_lt_search_path_spec | awk '
-BEGIN {RS=" "; FS="/|\n";} {
- lt_foo="";
- lt_count=0;
- for (lt_i = NF; lt_i > 0; lt_i--) {
- if ($lt_i != "" && $lt_i != ".") {
- if ($lt_i == "..") {
- lt_count++;
- } else {
- if (lt_count == 0) {
- lt_foo="/" $lt_i lt_foo;
- } else {
- lt_count--;
- }
- }
- }
- }
- if (lt_foo != "") { lt_freq[[lt_foo]]++; }
- if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
-}'`
- sys_lib_search_path_spec=`$ECHO $lt_search_path_spec`
-else
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi])
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=".so"
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-case $host_os in
-aix3*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
- shlibpath_var=LIBPATH
-
- # AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='${libname}${release}${shared_ext}$major'
- ;;
-
-aix[[4-9]]*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- hardcode_into_libs=yes
- if test "$host_cpu" = ia64; then
- # AIX 5 supports IA64
- library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- else
- # With GCC up to 2.95.x, collect2 would create an import file
- # for dependence libraries. The import file would start with
- # the line `#! .'. This would cause the generated library to
- # depend on `.', always an invalid library. This was fixed in
- # development snapshots of GCC prior to 3.0.
- case $host_os in
- aix4 | aix4.[[01]] | aix4.[[01]].*)
- if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
- echo ' yes '
- echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
- :
- else
- can_build_shared=no
- fi
- ;;
- esac
- # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
- # soname into executable. Probably we can add versioning support to
- # collect2, so additional links can be useful in future.
- if test "$aix_use_runtimelinking" = yes; then
- # If using run time linking (on AIX 4.2 or later) use lib<name>.so
- # instead of lib<name>.a to let people know that these are not
- # typical AIX shared libraries.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- else
- # We preserve .a as extension for shared libraries through AIX4.2
- # and later when we are not doing run time linking.
- library_names_spec='${libname}${release}.a $libname.a'
- soname_spec='${libname}${release}${shared_ext}$major'
- fi
- shlibpath_var=LIBPATH
- fi
- ;;
-
-amigaos*)
- case $host_cpu in
- powerpc)
- # Since July 2007 AmigaOS4 officially supports .so libraries.
- # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- ;;
- m68k)
- library_names_spec='$libname.ixlibrary $libname.a'
- # Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$ECHO "X$lib" | $Xsed -e '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
- ;;
- esac
- ;;
-
-beos*)
- library_names_spec='${libname}${shared_ext}'
- dynamic_linker="$host_os ld.so"
- shlibpath_var=LIBRARY_PATH
- ;;
-
-bsdi[[45]]*)
- version_type=linux
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
- sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
- # the default ld.so.conf also contains /usr/contrib/lib and
- # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
- # libtool to hard-code these into programs
- ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
- version_type=windows
- shrext_cmds=".dll"
- need_version=no
- need_lib_prefix=no
-
- case $GCC,$host_os in
- yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
- library_names_spec='$libname.dll.a'
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
-
- case $host_os in
- cygwin*)
- # Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- sys_lib_search_path_spec="/usr/lib /lib/w32api /lib /usr/local/lib"
- ;;
- mingw* | cegcc*)
- # MinGW DLLs use traditional 'lib' prefix
- soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- sys_lib_search_path_spec=`$CC -print-search-dirs | $GREP "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
- if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
- # It is most probably a Windows format PATH printed by
- # mingw gcc, but we are running on Cygwin. Gcc prints its search
- # path with ; separators, and with drive letters. We can handle the
- # drive letters (cygwin fileutils understands them), so leave them,
- # especially as we might pass files found there to a mingw objdump,
- # which wouldn't understand a cygwinified path. Ahh.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
- else
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- ;;
- pw32*)
- # pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- ;;
- esac
- ;;
-
- *)
- library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
- ;;
- esac
- dynamic_linker='Win32 ld.exe'
- # FIXME: first we should search . and the directory the executable is in
- shlibpath_var=PATH
- ;;
-
-darwin* | rhapsody*)
- dynamic_linker="$host_os dyld"
- version_type=darwin
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
- soname_spec='${libname}${release}${major}$shared_ext'
- shlibpath_overrides_runpath=yes
- shlibpath_var=DYLD_LIBRARY_PATH
- shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-m4_if([$1], [],[
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
- sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
- ;;
-
-dgux*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-freebsd1*)
- dynamic_linker=no
- ;;
-
-freebsd* | dragonfly*)
- # DragonFly does not have aout. When/if they implement a new
- # versioning mechanism, adjust this.
- if test -x /usr/bin/objformat; then
- objformat=`/usr/bin/objformat`
- else
- case $host_os in
- freebsd[[123]]*) objformat=aout ;;
- *) objformat=elf ;;
- esac
- fi
- version_type=freebsd-$objformat
- case $version_type in
- freebsd-elf*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- need_version=no
- need_lib_prefix=no
- ;;
- freebsd-*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
- need_version=yes
- ;;
- esac
- shlibpath_var=LD_LIBRARY_PATH
- case $host_os in
- freebsd2*)
- shlibpath_overrides_runpath=yes
- ;;
- freebsd3.[[01]]* | freebsdelf3.[[01]]*)
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
- freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
- *) # from 4.6 on, and DragonFly
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- esac
- ;;
-
-gnu*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- hardcode_into_libs=yes
- ;;
-
-hpux9* | hpux10* | hpux11*)
- # Give a soname corresponding to the major version so that dld.sl refuses to
- # link against other versions.
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- case $host_cpu in
- ia64*)
- shrext_cmds='.so'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.so"
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- if test "X$HPUX_IA64_MODE" = X32; then
- sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
- else
- sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
- fi
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- hppa*64*)
- shrext_cmds='.sl'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- *)
- shrext_cmds='.sl'
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=SHLIB_PATH
- shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- ;;
- esac
- # HP-UX runs *really* slowly unless shared libraries are mode 555.
- postinstall_cmds='chmod 555 $lib'
- ;;
-
-interix[[3-9]]*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $host_os in
- nonstopux*) version_type=nonstopux ;;
- *)
- if test "$lt_cv_prog_gnu_ld" = yes; then
- version_type=linux
- else
- version_type=irix
- fi ;;
- esac
- need_lib_prefix=no
- need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
- case $host_os in
- irix5* | nonstopux*)
- libsuff= shlibsuff=
- ;;
- *)
- case $LD in # libtool.m4 will add one of these switches to LD
- *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
- libsuff= shlibsuff= libmagic=32-bit;;
- *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
- libsuff=32 shlibsuff=N32 libmagic=N32;;
- *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
- libsuff=64 shlibsuff=64 libmagic=64-bit;;
- *) libsuff= shlibsuff= libmagic=never-match;;
- esac
- ;;
- esac
- shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
- sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
- hardcode_into_libs=yes
- ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
- dynamic_linker=no
- ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- # Some binutils ld are patched to set DT_RUNPATH
- save_LDFLAGS=$LDFLAGS
- save_libdir=$libdir
- eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
- LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
- [shlibpath_overrides_runpath=yes])])
- LDFLAGS=$save_LDFLAGS
- libdir=$save_libdir
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- # Append ld.so.conf contents to the search path
- if test -f /etc/ld.so.conf; then
- lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;/^$/d' | tr '\n' ' '`
- sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
- fi
-
- # We used to test for /lib/ld.so.1 and disable shared libraries on
- # powerpc, because MkLinux only supported shared libraries with the
- # GNU dynamic linker. Since this was broken with cross compilers,
- # most powerpc-linux boxes support dynamic linking these days and
- # people can always --disable-shared, the test was removed, and we
- # assume the GNU/Linux dynamic linker is in use.
- dynamic_linker='GNU/Linux ld.so'
- ;;
-
-netbsdelf*-gnu)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='NetBSD ld.elf_so'
- ;;
-
-netbsd*)
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- dynamic_linker='NetBSD (a.out) ld.so'
- else
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- dynamic_linker='NetBSD ld.elf_so'
- fi
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
-
-newsos6)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-*nto* | *qnx*)
- version_type=qnx
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='ldqnx.so'
- ;;
-
-openbsd*)
- version_type=sunos
- sys_lib_dlsearch_path_spec="/usr/lib"
- need_lib_prefix=no
- # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
- case $host_os in
- openbsd3.3 | openbsd3.3.*) need_version=yes ;;
- *) need_version=no ;;
- esac
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- case $host_os in
- openbsd2.[[89]] | openbsd2.[[89]].*)
- shlibpath_overrides_runpath=no
- ;;
- *)
- shlibpath_overrides_runpath=yes
- ;;
- esac
- else
- shlibpath_overrides_runpath=yes
- fi
- ;;
-
-os2*)
- libname_spec='$name'
- shrext_cmds=".dll"
- need_lib_prefix=no
- library_names_spec='$libname${shared_ext} $libname.a'
- dynamic_linker='OS/2 ld.exe'
- shlibpath_var=LIBPATH
- ;;
-
-osf3* | osf4* | osf5*)
- version_type=osf
- need_lib_prefix=no
- need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
- ;;
-
-rdos*)
- dynamic_linker=no
- ;;
-
-solaris*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- # ldd complains unless libraries are executable
- postinstall_cmds='chmod +x $lib'
- ;;
-
-sunos4*)
- version_type=sunos
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- if test "$with_gnu_ld" = yes; then
- need_lib_prefix=no
- fi
- need_version=yes
- ;;
-
-sysv4 | sysv4.3*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- case $host_vendor in
- sni)
- shlibpath_overrides_runpath=no
- need_lib_prefix=no
- runpath_var=LD_RUN_PATH
- ;;
- siemens)
- need_lib_prefix=no
- ;;
- motorola)
- need_lib_prefix=no
- need_version=no
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
- ;;
- esac
- ;;
-
-sysv4*MP*)
- if test -d /usr/nec ;then
- version_type=linux
- library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
- soname_spec='$libname${shared_ext}.$major'
- shlibpath_var=LD_LIBRARY_PATH
- fi
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=freebsd-elf
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- if test "$with_gnu_ld" = yes; then
- sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
- else
- sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
- case $host_os in
- sco3.2v5*)
- sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
- ;;
- esac
- fi
- sys_lib_dlsearch_path_spec='/usr/lib'
- ;;
-
-tpf*)
- # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-uts4*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-*)
- dynamic_linker=no
- ;;
-esac
-AC_MSG_RESULT([$dynamic_linker])
-test "$dynamic_linker" = no && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
- variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
- sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
-fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
- sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
-fi
-
-_LT_DECL([], [variables_saved_for_relink], [1],
- [Variables whose values should be saved in libtool wrapper scripts and
- restored at link time])
-_LT_DECL([], [need_lib_prefix], [0],
- [Do we need the "lib" prefix for modules?])
-_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
-_LT_DECL([], [version_type], [0], [Library versioning type])
-_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable])
-_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
-_LT_DECL([], [shlibpath_overrides_runpath], [0],
- [Is shlibpath searched before the hard-coded library search path?])
-_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
-_LT_DECL([], [library_names_spec], [1],
- [[List of archive names. First name is the real one, the rest are links.
- The last name is the one that the linker finds with -lNAME]])
-_LT_DECL([], [soname_spec], [1],
- [[The coded name of the library, if different from the real name]])
-_LT_DECL([], [postinstall_cmds], [2],
- [Command to use after installation of a shared archive])
-_LT_DECL([], [postuninstall_cmds], [2],
- [Command to use after uninstallation of a shared archive])
-_LT_DECL([], [finish_cmds], [2],
- [Commands used to finish a libtool library installation in a directory])
-_LT_DECL([], [finish_eval], [1],
- [[As "finish_cmds", except a single script fragment to be evaled but
- not shown]])
-_LT_DECL([], [hardcode_into_libs], [0],
- [Whether we should hardcode library paths into libraries])
-_LT_DECL([], [sys_lib_search_path_spec], [2],
- [Compile-time system search path for libraries])
-_LT_DECL([], [sys_lib_dlsearch_path_spec], [2],
- [Run-time system search path for libraries])
-])# _LT_SYS_DYNAMIC_LINKER
-
-
-# _LT_PATH_TOOL_PREFIX(TOOL)
-# --------------------------
-# find a file program which can recognize shared library
-AC_DEFUN([_LT_PATH_TOOL_PREFIX],
-[m4_require([_LT_DECL_EGREP])dnl
-AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
-[case $MAGIC_CMD in
-[[\\/*] | ?:[\\/]*])
- lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
- ;;
-*)
- lt_save_MAGIC_CMD="$MAGIC_CMD"
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-dnl $ac_dummy forces splitting on constant user-supplied paths.
-dnl POSIX.2 word splitting is done only on the output of word expansions,
-dnl not every word. This closes a longstanding sh security hole.
- ac_dummy="m4_if([$2], , $PATH, [$2])"
- for ac_dir in $ac_dummy; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$1; then
- lt_cv_path_MAGIC_CMD="$ac_dir/$1"
- if test -n "$file_magic_test_file"; then
- case $deplibs_check_method in
- "file_magic "*)
- file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
- if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
- $EGREP "$file_magic_regex" > /dev/null; then
- :
- else
- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such. This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem. Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
- fi ;;
- esac
- fi
- break
- fi
- done
- IFS="$lt_save_ifs"
- MAGIC_CMD="$lt_save_MAGIC_CMD"
- ;;
-esac])
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
- AC_MSG_RESULT($MAGIC_CMD)
-else
- AC_MSG_RESULT(no)
-fi
-_LT_DECL([], [MAGIC_CMD], [0],
- [Used to examine libraries when file_magic_cmd begins with "file"])dnl
-])# _LT_PATH_TOOL_PREFIX
-
-# Old name:
-AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
-
-
-# _LT_PATH_MAGIC
-# --------------
-# find a file program which can recognize a shared library
-m4_defun([_LT_PATH_MAGIC],
-[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
-if test -z "$lt_cv_path_MAGIC_CMD"; then
- if test -n "$ac_tool_prefix"; then
- _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
- else
- MAGIC_CMD=:
- fi
-fi
-])# _LT_PATH_MAGIC
-
-
-# LT_PATH_LD
-# ----------
-# find the pathname to the GNU or non-GNU linker
-AC_DEFUN([LT_PATH_LD],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_CANONICAL_BUILD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-
-AC_ARG_WITH([gnu-ld],
- [AS_HELP_STRING([--with-gnu-ld],
- [assume the C compiler uses GNU ld @<:@default=no@:>@])],
- [test "$withval" = no || with_gnu_ld=yes],
- [with_gnu_ld=no])dnl
-
-ac_prog=ld
-if test "$GCC" = yes; then
- # Check if gcc -print-prog-name=ld gives a path.
- AC_MSG_CHECKING([for ld used by $CC])
- case $host in
- *-*-mingw*)
- # gcc leaves a trailing carriage return which upsets mingw
- ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
- *)
- ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
- esac
- case $ac_prog in
- # Accept absolute paths.
- [[\\/]]* | ?:[[\\/]]*)
- re_direlt='/[[^/]][[^/]]*/\.\./'
- # Canonicalize the pathname of ld
- ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
- while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
- ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
- done
- test -z "$LD" && LD="$ac_prog"
- ;;
- "")
- # If it fails, then pretend we aren't using GCC.
- ac_prog=ld
- ;;
- *)
- # If it is relative, then search for the first ld in PATH.
- with_gnu_ld=unknown
- ;;
- esac
-elif test "$with_gnu_ld" = yes; then
- AC_MSG_CHECKING([for GNU ld])
-else
- AC_MSG_CHECKING([for non-GNU ld])
-fi
-AC_CACHE_VAL(lt_cv_path_LD,
-[if test -z "$LD"; then
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
- lt_cv_path_LD="$ac_dir/$ac_prog"
- # Check to see if the program is GNU ld. I'd rather use --version,
- # but apparently some variants of GNU ld only accept -v.
- # Break only if it was the GNU/non-GNU ld that we prefer.
- case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
- *GNU* | *'with BFD'*)
- test "$with_gnu_ld" != no && break
- ;;
- *)
- test "$with_gnu_ld" != yes && break
- ;;
- esac
- fi
- done
- IFS="$lt_save_ifs"
-else
- lt_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$lt_cv_path_LD"
-if test -n "$LD"; then
- AC_MSG_RESULT($LD)
-else
- AC_MSG_RESULT(no)
-fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-_LT_PATH_LD_GNU
-AC_SUBST([LD])
-
-_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
-])# LT_PATH_LD
-
-# Old names:
-AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
-AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_LD], [])
-dnl AC_DEFUN([AC_PROG_LD], [])
-
-
-# _LT_PATH_LD_GNU
-#- --------------
-m4_defun([_LT_PATH_LD_GNU],
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU lds only accept -v.
-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
- lt_cv_prog_gnu_ld=yes
- ;;
-*)
- lt_cv_prog_gnu_ld=no
- ;;
-esac])
-with_gnu_ld=$lt_cv_prog_gnu_ld
-])# _LT_PATH_LD_GNU
-
-
-# _LT_CMD_RELOAD
-# --------------
-# find reload flag for linker
-# -- PORTME Some linkers may need a different reload flag.
-m4_defun([_LT_CMD_RELOAD],
-[AC_CACHE_CHECK([for $LD option to reload object files],
- lt_cv_ld_reload_flag,
- [lt_cv_ld_reload_flag='-r'])
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
- darwin*)
- if test "$GCC" = yes; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
- else
- reload_cmds='$LD$reload_flag -o $output$reload_objs'
- fi
- ;;
-esac
-_LT_DECL([], [reload_flag], [1], [How to create reloadable object files])dnl
-_LT_DECL([], [reload_cmds], [2])dnl
-])# _LT_CMD_RELOAD
-
-
-# _LT_CHECK_MAGIC_METHOD
-# ----------------------
-# how to check for library dependencies
-# -- PORTME fill in with the dynamic library characteristics
-m4_defun([_LT_CHECK_MAGIC_METHOD],
-[m4_require([_LT_DECL_EGREP])
-m4_require([_LT_DECL_OBJDUMP])
-AC_CACHE_CHECK([how to recognize dependent libraries],
-lt_cv_deplibs_check_method,
-[lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[[4-9]]*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-beos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-bsdi[[45]]*)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
- lt_cv_file_magic_cmd='/usr/bin/file -L'
- lt_cv_file_magic_test_file=/shlib/libc.so
- ;;
-
-cygwin*)
- # func_win32_libid is a shell function defined in ltmain.sh
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- ;;
-
-mingw* | pw32*)
- # Base MSYS/MinGW do not provide the 'file' command needed by
- # func_win32_libid shell function, so use a weaker test based on 'objdump',
- # unless we find 'file', for example because we are cross-compiling.
- if ( file / ) >/dev/null 2>&1; then
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- else
- lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- fi
- ;;
-
-cegcc)
- # use the weaker test based on 'objdump'. See mingw*.
- lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- ;;
-
-darwin* | rhapsody*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-freebsd* | dragonfly*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- case $host_cpu in
- i*86 )
- # Not sure whether the presence of OpenBSD here was a mistake.
- # Let's accept both of them until this is cleared up.
- lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
- ;;
- esac
- else
- lt_cv_deplibs_check_method=pass_all
- fi
- ;;
-
-gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-hpux10.20* | hpux11*)
- lt_cv_file_magic_cmd=/usr/bin/file
- case $host_cpu in
- ia64*)
- lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
- lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
- ;;
- hppa*64*)
- [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]']
- lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
- ;;
- *)
- lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]].[[0-9]]) shared library'
- lt_cv_file_magic_test_file=/usr/lib/libc.sl
- ;;
- esac
- ;;
-
-interix[[3-9]]*)
- # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $LD in
- *-32|*"-32 ") libmagic=32-bit;;
- *-n32|*"-n32 ") libmagic=N32;;
- *-64|*"-64 ") libmagic=64-bit;;
- *) libmagic=never-match;;
- esac
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
- fi
- ;;
-
-newos6*)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=/usr/lib/libnls.so
- ;;
-
-*nto* | *qnx*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-openbsd*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
- fi
- ;;
-
-osf3* | osf4* | osf5*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-rdos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-solaris*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv4 | sysv4.3*)
- case $host_vendor in
- motorola)
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
- ;;
- ncr)
- lt_cv_deplibs_check_method=pass_all
- ;;
- sequent)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
- ;;
- sni)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
- lt_cv_file_magic_test_file=/lib/libc.so
- ;;
- siemens)
- lt_cv_deplibs_check_method=pass_all
- ;;
- pc)
- lt_cv_deplibs_check_method=pass_all
- ;;
- esac
- ;;
-
-tpf*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-esac
-])
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-_LT_DECL([], [deplibs_check_method], [1],
- [Method to check whether dependent libraries are shared objects])
-_LT_DECL([], [file_magic_cmd], [1],
- [Command to use when deplibs_check_method == "file_magic"])
-])# _LT_CHECK_MAGIC_METHOD
-
-
-# LT_PATH_NM
-# ----------
-# find the pathname to a BSD- or MS-compatible name lister
-AC_DEFUN([LT_PATH_NM],
-[AC_REQUIRE([AC_PROG_CC])dnl
-AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
-[if test -n "$NM"; then
- # Let the user override the test.
- lt_cv_path_NM="$NM"
-else
- lt_nm_to_check="${ac_tool_prefix}nm"
- if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
- lt_nm_to_check="$lt_nm_to_check nm"
- fi
- for lt_tmp_nm in $lt_nm_to_check; do
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- tmp_nm="$ac_dir/$lt_tmp_nm"
- if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
- # Check to see if the nm accepts a BSD-compat flag.
- # Adding the `sed 1q' prevents false positives on HP-UX, which says:
- # nm: unknown option "B" ignored
- # Tru64's nm complains that /dev/null is an invalid object file
- case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
- */dev/null* | *'Invalid file or object type'*)
- lt_cv_path_NM="$tmp_nm -B"
- break
- ;;
- *)
- case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
- */dev/null*)
- lt_cv_path_NM="$tmp_nm -p"
- break
- ;;
- *)
- lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
- continue # so that we can try to find one that supports BSD flags
- ;;
- esac
- ;;
- esac
- fi
- done
- IFS="$lt_save_ifs"
- done
- : ${lt_cv_path_NM=no}
-fi])
-if test "$lt_cv_path_NM" != "no"; then
- NM="$lt_cv_path_NM"
-else
- # Didn't find any BSD compatible name lister, look for dumpbin.
- AC_CHECK_TOOLS(DUMPBIN, ["dumpbin -symbols" "link -dump -symbols"], :)
- AC_SUBST([DUMPBIN])
- if test "$DUMPBIN" != ":"; then
- NM="$DUMPBIN"
- fi
-fi
-test -z "$NM" && NM=nm
-AC_SUBST([NM])
-_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
-
-AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
- [lt_cv_nm_interface="BSD nm"
- echo "int some_variable = 0;" > conftest.$ac_ext
- (eval echo "\"\$as_me:__oline__: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
- (eval "$ac_compile" 2>conftest.err)
- cat conftest.err >&AS_MESSAGE_LOG_FD
- (eval echo "\"\$as_me:__oline__: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
- (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
- cat conftest.err >&AS_MESSAGE_LOG_FD
- (eval echo "\"\$as_me:__oline__: output\"" >&AS_MESSAGE_LOG_FD)
- cat conftest.out >&AS_MESSAGE_LOG_FD
- if $GREP 'External.*some_variable' conftest.out > /dev/null; then
- lt_cv_nm_interface="MS dumpbin"
- fi
- rm -f conftest*])
-])# LT_PATH_NM
-
-# Old names:
-AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
-AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AM_PROG_NM], [])
-dnl AC_DEFUN([AC_PROG_NM], [])
-
-
-# LT_LIB_M
-# --------
-# check for math library
-AC_DEFUN([LT_LIB_M],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-LIBM=
-case $host in
-*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
- # These system don't have libm, or don't need it
- ;;
-*-ncr-sysv4.3*)
- AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
- AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
- ;;
-*)
- AC_CHECK_LIB(m, cos, LIBM="-lm")
- ;;
-esac
-AC_SUBST([LIBM])
-])# LT_LIB_M
-
-# Old name:
-AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_CHECK_LIBM], [])
-
-
-# _LT_COMPILER_NO_RTTI([TAGNAME])
-# -------------------------------
-m4_defun([_LT_COMPILER_NO_RTTI],
-[m4_require([_LT_TAG_COMPILER])dnl
-
-_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
-
-if test "$GCC" = yes; then
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
-
- _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
- lt_cv_prog_compiler_rtti_exceptions,
- [-fno-rtti -fno-exceptions], [],
- [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
-fi
-_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
- [Compiler flag to turn off builtin functions])
-])# _LT_COMPILER_NO_RTTI
-
-
-# _LT_CMD_GLOBAL_SYMBOLS
-# ----------------------
-m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-AC_REQUIRE([LT_PATH_LD])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-AC_MSG_CHECKING([command to parse $NM output from $compiler object])
-AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
-[
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix. What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[[BCDEGRST]]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
- symcode='[[BCDT]]'
- ;;
-cygwin* | mingw* | pw32* | cegcc*)
- symcode='[[ABCDGISTW]]'
- ;;
-hpux*)
- if test "$host_cpu" = ia64; then
- symcode='[[ABCDEGRST]]'
- fi
- ;;
-irix* | nonstopux*)
- symcode='[[BCDEGRST]]'
- ;;
-osf*)
- symcode='[[BCDEGQRST]]'
- ;;
-solaris*)
- symcode='[[BDRT]]'
- ;;
-sco3.2v5*)
- symcode='[[DT]]'
- ;;
-sysv4.2uw2*)
- symcode='[[DT]]'
- ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
- symcode='[[ABDT]]'
- ;;
-sysv4)
- symcode='[[DFNSTU]]'
- ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
- symcode='[[ABCDGIRSTW]]' ;;
-esac
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
- opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
- ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
- # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
- symxfrm="\\1 $ac_symprfx\\2 \\2"
-
- # Write the raw and C identifiers.
- if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function
- # and D for any global variable.
- # Also find C++ and __fastcall symbols from MSVC++,
- # which start with @ or ?.
- lt_cv_sys_global_symbol_pipe="$AWK ['"\
-" {last_section=section; section=\$ 3};"\
-" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-" \$ 0!~/External *\|/{next};"\
-" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-" {if(hide[section]) next};"\
-" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-" s[1]~/^[@?]/{print s[1], s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
-" ' prfx=^$ac_symprfx]"
- else
- lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
- fi
-
- # Check to see that the pipe works correctly.
- pipe_works=no
-
- rm -f conftest*
- cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
- if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- else
- rm -f "$nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
- if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<_LT_EOF > conftest.$ac_ext
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
- # Now generate the symbol file.
- eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
- cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols. */
-const struct {
- const char *name;
- void *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[[]] =
-{
- { "@PROGRAM@", (void *) 0 },
-_LT_EOF
- $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
- cat <<\_LT_EOF >> conftest.$ac_ext
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- lt_save_LIBS="$LIBS"
- lt_save_CFLAGS="$CFLAGS"
- LIBS="conftstm.$ac_objext"
- CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
- if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
- pipe_works=yes
- fi
- LIBS="$lt_save_LIBS"
- CFLAGS="$lt_save_CFLAGS"
- else
- echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
- cat conftest.$ac_ext >&5
- fi
- rm -rf conftest* conftst*
-
- # Do not use the global_symbol_pipe unless it works.
- if test "$pipe_works" = yes; then
- break
- else
- lt_cv_sys_global_symbol_pipe=
- fi
-done
-])
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
- lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
- AC_MSG_RESULT(failed)
-else
- AC_MSG_RESULT(ok)
-fi
-
-_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
- [Take the output of nm and produce a listing of raw symbols and C names])
-_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
- [Transform the output of nm in a proper C declaration])
-_LT_DECL([global_symbol_to_c_name_address],
- [lt_cv_sys_global_symbol_to_c_name_address], [1],
- [Transform the output of nm in a C name address pair])
-_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
- [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
- [Transform the output of nm in a C name address pair when lib prefix is needed])
-]) # _LT_CMD_GLOBAL_SYMBOLS
-
-
-# _LT_COMPILER_PIC([TAGNAME])
-# ---------------------------
-m4_defun([_LT_COMPILER_PIC],
-[m4_require([_LT_TAG_COMPILER])dnl
-_LT_TAGVAR(lt_prog_compiler_wl, $1)=
-_LT_TAGVAR(lt_prog_compiler_pic, $1)=
-_LT_TAGVAR(lt_prog_compiler_static, $1)=
-
-AC_MSG_CHECKING([for $compiler option to produce PIC])
-m4_if([$1], [CXX], [
- # C++ specific cases for pic, static, wl, etc.
- if test "$GXX" = yes; then
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
- mingw* | cygwin* | os2* | pw32* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- ;;
- *djgpp*)
- # DJGPP does not support shared libraries at all
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- ;;
- interix[[3-9]]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
- fi
- ;;
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- ;;
- *qnx* | *nto*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- else
- case $host_os in
- aix[[4-9]]*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- else
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
- chorus*)
- case $cc_basename in
- cxch68*)
- # Green Hills C++ Compiler
- # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
- ;;
- esac
- ;;
- dgux*)
- case $cc_basename in
- ec++*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- ;;
- ghcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- *)
- ;;
- esac
- ;;
- freebsd* | dragonfly*)
- # FreeBSD uses GNU C++
- ;;
- hpux9* | hpux10* | hpux11*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- if test "$host_cpu" != ia64; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- fi
- ;;
- aCC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- ;;
- esac
- ;;
- *)
- ;;
- esac
- ;;
- interix*)
- # This is c89, which is MS Visual C++ (no shared libs)
- # Anyone wants to do a port?
- ;;
- irix5* | irix6* | nonstopux*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- # CC pic flag -KPIC is the default.
- ;;
- *)
- ;;
- esac
- ;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- KCC*)
- # KAI C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- ecpc* )
- # old Intel C++ for x86_64 which still supported -KPIC.
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- icpc* )
- # Intel C++, used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- pgCC* | pgcpp*)
- # Portland Group C++ compiler
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- cxx*)
- # Compaq C++
- # Make sure the PIC flag is empty. It appears that all Alpha
- # Linux and Compaq Tru64 Unix objects are PIC.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- xlc* | xlC*)
- # IBM XL 8.0 on PPC
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- esac
- ;;
- esac
- ;;
- lynxos*)
- ;;
- m88k*)
- ;;
- mvs*)
- case $cc_basename in
- cxx*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
- ;;
- *)
- ;;
- esac
- ;;
- netbsd* | netbsdelf*-gnu)
- ;;
- *qnx* | *nto*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
- osf3* | osf4* | osf5*)
- case $cc_basename in
- KCC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
- ;;
- RCC*)
- # Rational C++ 2.4.1
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- cxx*)
- # Digital/Compaq C++
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # Make sure the PIC flag is empty. It appears that all Alpha
- # Linux and Compaq Tru64 Unix objects are PIC.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- *)
- ;;
- esac
- ;;
- psos*)
- ;;
- solaris*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.2, 5.x and Centerline C++
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- ;;
- gcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- ;;
- *)
- ;;
- esac
- ;;
- sunos4*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.x
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- lcc*)
- # Lucid
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- ;;
- *)
- ;;
- esac
- ;;
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- case $cc_basename in
- CC*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- esac
- ;;
- tandem*)
- case $cc_basename in
- NCC*)
- # NonStop-UX NCC 3.20
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- ;;
- *)
- ;;
- esac
- ;;
- vxworks*)
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
- esac
- fi
-],
-[
- if test "$GCC" = yes; then
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
- ;;
-
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- ;;
-
- interix[[3-9]]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
-
- msdosdjgpp*)
- # Just because we use GCC doesn't mean we suddenly get shared libraries
- # on systems that don't support them.
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- enable_shared=no
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
- fi
- ;;
-
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- ;;
- esac
- else
- # PORTME Check for flag to pass linker flags through the system compiler.
- case $host_os in
- aix*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- else
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- m4_if([$1], [GCJ], [],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
- ;;
-
- hpux9* | hpux10* | hpux11*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
- # not for PA HP-UX.
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
- ;;
- esac
- # Is there a better lt_prog_compiler_static that works with the bundled CC?
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- ;;
-
- irix5* | irix6* | nonstopux*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # PIC (with -KPIC) is the default.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- # old Intel for x86_64 which still supported -KPIC.
- ecc*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- # icc used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- icc* | ifort*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
- ;;
- # Lahey Fortran 8.1.
- lf95*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
- ;;
- pgcc* | pgf77* | pgf90* | pgf95*)
- # Portland Group compilers (*not* the Pentium gcc compiler,
- # which looks to be a dead project)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
- ccc*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # All Alpha code is PIC.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
- xl*)
- # IBM XL C 8.0/Fortran 10.1 on PPC
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C 5.9
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- ;;
- *Sun\ F*)
- # Sun Fortran 8.3 passes all unrecognized flags to the linker
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
- ;;
- esac
- ;;
- esac
- ;;
-
- newsos6)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
- ;;
-
- osf3* | osf4* | osf5*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- # All OSF/1 code is PIC.
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- rdos*)
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
- ;;
-
- solaris*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- case $cc_basename in
- f77* | f90* | f95*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
- *)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
- esac
- ;;
-
- sunos4*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- sysv4 | sysv4.2uw2* | sysv4.3*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec ;then
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- fi
- ;;
-
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- unicos*)
- _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
-
- uts4*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
- ;;
-
- *)
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
- ;;
- esac
- fi
-])
-case $host_os in
- # For platforms which do not support PIC, -DPIC is meaningless:
- *djgpp*)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)=
- ;;
- *)
- _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
- ;;
-esac
-AC_MSG_RESULT([$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
-_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
- [How to pass a linker flag through the compiler])
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
- _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
- [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
- [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
- [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
- "" | " "*) ;;
- *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
- esac],
- [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
- _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
-fi
-_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
- [Additional compiler flags for building library objects])
-
-#
-# Check to make sure the static flag actually works.
-#
-wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
-_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
- _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
- $lt_tmp_static_flag,
- [],
- [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
-_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
- [Compiler flag to prevent dynamic linking])
-])# _LT_COMPILER_PIC
-
-
-# _LT_LINKER_SHLIBS([TAGNAME])
-# ----------------------------
-# See if the linker supports building shared libraries.
-m4_defun([_LT_LINKER_SHLIBS],
-[AC_REQUIRE([LT_PATH_LD])dnl
-AC_REQUIRE([LT_PATH_NM])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-m4_require([_LT_DECL_SED])dnl
-m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
-m4_require([_LT_TAG_COMPILER])dnl
-AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
-m4_if([$1], [CXX], [
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- case $host_os in
- aix[[4-9]]*)
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- else
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- fi
- ;;
- pw32*)
- _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
- ;;
- cygwin* | mingw* | cegcc*)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;/^.*[[ ]]__nm__/s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
- ;;
- linux* | k*bsd*-gnu)
- _LT_TAGVAR(link_all_deplibs, $1)=no
- ;;
- *)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- ;;
- esac
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
-], [
- runpath_var=
- _LT_TAGVAR(allow_undefined_flag, $1)=
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(archive_cmds, $1)=
- _LT_TAGVAR(archive_expsym_cmds, $1)=
- _LT_TAGVAR(compiler_needs_object, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
- _LT_TAGVAR(hardcode_automatic, $1)=no
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- _LT_TAGVAR(hardcode_minus_L, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- _LT_TAGVAR(inherit_rpath, $1)=no
- _LT_TAGVAR(link_all_deplibs, $1)=unknown
- _LT_TAGVAR(module_cmds, $1)=
- _LT_TAGVAR(module_expsym_cmds, $1)=
- _LT_TAGVAR(old_archive_from_new_cmds, $1)=
- _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
- _LT_TAGVAR(thread_safe_flag_spec, $1)=
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- # include_expsyms should be a list of space-separated symbols to be *always*
- # included in the symbol list
- _LT_TAGVAR(include_expsyms, $1)=
- # exclude_expsyms can be an extended regexp of symbols to exclude
- # it will be wrapped by ` (' and `)$', so one must not match beginning or
- # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
- # as well as any symbol that contains `d'.
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
- # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
- # platforms (ab)use it in PIC code, but their linkers get confused if
- # the symbol is explicitly referenced. Since portable code cannot
- # rely on this symbol name, it's probably fine to never include it in
- # preloaded symbol tables.
- # Exclude shared library initialization/finalization symbols.
-dnl Note also adjust exclude_expsyms for C++ above.
- extract_expsyms_cmds=
-
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- # FIXME: the MSVC++ port hasn't been tested in a loooong time
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- if test "$GCC" != yes; then
- with_gnu_ld=no
- fi
- ;;
- interix*)
- # we just hope/assume this is gcc and not c89 (= MSVC++)
- with_gnu_ld=yes
- ;;
- openbsd*)
- with_gnu_ld=no
- ;;
- linux* | k*bsd*-gnu)
- _LT_TAGVAR(link_all_deplibs, $1)=no
- ;;
- esac
-
- _LT_TAGVAR(ld_shlibs, $1)=yes
- if test "$with_gnu_ld" = yes; then
- # If archive_cmds runs LD, not CC, wlarc should be empty
- wlarc='${wl}'
-
- # Set some defaults for GNU ld with shared library support. These
- # are reset later if shared libraries are not supported. Putting them
- # here allows them to be overridden if necessary.
- runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- # ancient GNU ld didn't support --whole-archive et. al.
- if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- supports_anon_versioning=no
- case `$LD -v 2>&1` in
- *GNU\ gold*) supports_anon_versioning=yes ;;
- *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
- *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
- *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
- *\ 2.11.*) ;; # other 2.11 versions
- *) supports_anon_versioning=yes ;;
- esac
-
- # See if GNU ld supports shared libraries.
- case $host_os in
- aix[[3-9]]*)
- # On AIX/PPC, the GNU linker is very broken
- if test "$host_cpu" != ia64; then
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.9.1, is reported
-*** to be unable to reliably create shared libraries on AIX.
-*** Therefore, libtool is disabling shared libraries support. If you
-*** really care for shared libraries, you may want to modify your PATH
-*** so that a non-GNU linker is found, and then restart.
-
-_LT_EOF
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)=''
- ;;
- m68k)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
- # as there is no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- interix[[3-9]]*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
-
- gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
- tmp_diet=no
- if test "$host_os" = linux-dietlibc; then
- case $cc_basename in
- diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
- esac
- fi
- if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test "$tmp_diet" = no
- then
- tmp_addflag=
- tmp_sharedflag='-shared'
- case $cc_basename,$host_cpu in
- pgcc*) # Portland Group C compiler
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- tmp_addflag=' $pic_flag'
- ;;
- pgf77* | pgf90* | pgf95*) # Portland Group f77 and f90 compilers
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- tmp_addflag=' $pic_flag -Mnomain' ;;
- ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
- tmp_addflag=' -i_dynamic' ;;
- efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
- tmp_addflag=' -i_dynamic -nofor_main' ;;
- ifc* | ifort*) # Intel Fortran compiler
- tmp_addflag=' -nofor_main' ;;
- lf95*) # Lahey Fortran 8.1
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- tmp_sharedflag='--shared' ;;
- xl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
- tmp_sharedflag='-qmkshrobj'
- tmp_addflag= ;;
- esac
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C 5.9
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
- tmp_sharedflag='-G' ;;
- *Sun\ F*) # Sun Fortran 8.3
- tmp_sharedflag='-G' ;;
- esac
- _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-
- if test "x$supports_anon_versioning" = xyes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
- fi
-
- case $cc_basename in
- xlf*)
- # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
- _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
- _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
- fi
- ;;
- esac
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
- wlarc=
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- fi
- ;;
-
- solaris*)
- if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
- case `$LD -v 2>&1` in
- *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
- _LT_TAGVAR(ld_shlibs, $1)=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
-*** reliably create shared libraries on SCO systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- ;;
- *)
- # For security reasons, it is highly recommended that you always
- # use absolute paths for naming shared libraries, and exclude the
- # DT_RUNPATH tag from executables and libraries. But doing so
- # requires that you compile everything twice, which is a pain.
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- sunos4*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- wlarc=
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
-
- if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then
- runpath_var=
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- else
- # PORTME fill in a description of your system's linker (not GNU ld)
- case $host_os in
- aix3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=yes
- _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
- # Note: this linker hardcodes the directories in LIBPATH if there
- # are no directories specified by -L.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
- # Neither direct hardcoding nor static linking is supported with a
- # broken collect2.
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- fi
- ;;
-
- aix[[4-9]]*)
- if test "$host_cpu" = ia64; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=""
- else
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- else
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- fi
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
- case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
- for ld_flag in $LDFLAGS; do
- if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
- aix_use_runtimelinking=yes
- break
- fi
- done
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- _LT_TAGVAR(archive_cmds, $1)=''
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
-
- if test "$GCC" = yes; then
- case $host_os in aix4.[[012]]|aix4.[[012]].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- fi
- ;;
- esac
- shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
- fi
- _LT_TAGVAR(link_all_deplibs, $1)=no
- else
- # not using gcc
- if test "$host_cpu" = ia64; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
- else
- shared_flag='${wl}-bM:SRE'
- fi
- fi
- fi
-
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to export.
- _LT_TAGVAR(always_export_symbols, $1)=yes
- if test "$aix_use_runtimelinking" = yes; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
- else
- if test "$host_cpu" = ia64; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
- _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
- # Exported symbols can be pulled into shared objects from archives
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- # This is similar to how AIX traditionally builds its shared libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
- fi
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)=''
- ;;
- m68k)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- ;;
-
- bsdi[[45]]*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- # hardcode_libdir_flag_spec is actually meaningless, as there is
- # no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
- # FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `$ECHO "X$deplibs" | $Xsed -e '\''s/ -lc$//'\''` -link -dll~linknames='
- # The linker will automatically build a .lib file if we build a DLL.
- _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
- # FIXME: Should let the user specify the lib program.
- _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
- _LT_TAGVAR(fix_srcfile_path, $1)='`cygpath -w "$srcfile"`'
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- ;;
-
- darwin* | rhapsody*)
- _LT_DARWIN_LINKER_FEATURES($1)
- ;;
-
- dgux*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- freebsd1*)
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
- # support. Future versions do this automatically, but an explicit c++rt0.o
- # does not break anything, and helps significantly (at the cost of a little
- # extra space).
- freebsd2.2*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # Unfortunately, older versions of FreeBSD 2 do not have this feature.
- freebsd2*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
- freebsd* | dragonfly*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- hpux9*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- else
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_direct, $1)=yes
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- ;;
-
- hpux10*)
- if test "$GCC" = yes -a "$with_gnu_ld" = no; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
- fi
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- fi
- ;;
-
- hpux11*)
- if test "$GCC" = yes -a "$with_gnu_ld" = no; then
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- else
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- fi
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
- *)
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- ;;
- esac
- fi
- ;;
-
- irix5* | irix6* | nonstopux*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- # Try to use the -exported_symbol ld option, if it does not
- # work, assume that -exports_file does not work either and
- # implicitly export all symbols.
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
- AC_LINK_IFELSE(int foo(void) {},
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
- )
- LDFLAGS="$save_LDFLAGS"
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(inherit_rpath, $1)=yes
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- newsos6)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *nto* | *qnx*)
- ;;
-
- openbsd*)
- if test -f /usr/libexec/ld.so; then
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- else
- case $host_os in
- openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- ;;
- esac
- fi
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- os2*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$ECHO DATA >> $output_objdir/$libname.def~$ECHO " SINGLE NONSHARED" >> $output_objdir/$libname.def~$ECHO EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
- _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
- ;;
-
- osf3*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- else
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- ;;
-
- osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test "$GCC" = yes; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- else
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
-
- # Both c and cxx compiler support -rpath directly
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- fi
- _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- ;;
-
- solaris*)
- _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
- if test "$GCC" = yes; then
- wlarc='${wl}'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- else
- case `$CC -V 2>&1` in
- *"Compilers 5.0"*)
- wlarc=''
- _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
- ;;
- *)
- wlarc='${wl}'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- ;;
- esac
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'. GCC discards it without `$wl',
- # but is careful enough not to reorder.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- if test "$GCC" = yes; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
- fi
- ;;
- esac
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
-
- sunos4*)
- if test "x$host_vendor" = xsequent; then
- # Use $CC to link under sequent, because it throws in some extra .o
- # files that make .init and .fini sections work.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
- fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- sysv4)
- case $host_vendor in
- sni)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
- ;;
- siemens)
- ## LD is ld it makes a PLAMLIB
- ## CC just makes a GrossModule.
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
- _LT_TAGVAR(hardcode_direct, $1)=no
- ;;
- motorola)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
- ;;
- esac
- runpath_var='LD_RUN_PATH'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- sysv4.3*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var=LD_RUN_PATH
- hardcode_runpath_var=yes
- _LT_TAGVAR(ld_shlibs, $1)=yes
- fi
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var='LD_RUN_PATH'
-
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
- runpath_var='LD_RUN_PATH'
-
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- uts4*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
-
- *)
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
-
- if test x$host_vendor = xsni; then
- case $host in
- sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym'
- ;;
- esac
- fi
- fi
-])
-AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
-test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
-
-_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
-
-_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
-_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
-_LT_DECL([], [extract_expsyms_cmds], [2],
- [The commands to extract the exported symbol list from a shared archive])
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
-x|xyes)
- # Assume -lc should be added
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
-
- if test "$enable_shared" = yes && test "$GCC" = yes; then
- case $_LT_TAGVAR(archive_cmds, $1) in
- *'~'*)
- # FIXME: we may have to deal with multi-command sequences.
- ;;
- '$CC '*)
- # Test whether the compiler implicitly links with -lc since on some
- # systems, -lgcc has to come before -lc. If gcc already passes -lc
- # to ld, don't add -lc before -lgcc.
- AC_MSG_CHECKING([whether -lc should be explicitly linked in])
- $RM conftest*
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
- soname=conftest
- lib=conftest
- libobjs=conftest.$ac_objext
- deplibs=
- wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
- pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
- compiler_flags=-v
- linker_flags=-v
- verstring=
- output_objdir=.
- libname=conftest
- lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
- _LT_TAGVAR(allow_undefined_flag, $1)=
- if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
- then
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- else
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- fi
- _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
- else
- cat conftest.err 1>&5
- fi
- $RM conftest*
- AC_MSG_RESULT([$_LT_TAGVAR(archive_cmds_need_lc, $1)])
- ;;
- esac
- fi
- ;;
-esac
-
-_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
- [Whether or not to add -lc for building shared libraries])
-_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
- [enable_shared_with_static_runtimes], [0],
- [Whether or not to disallow shared libs when runtime libs are static])
-_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
- [Compiler flag to allow reflexive dlopens])
-_LT_TAGDECL([], [whole_archive_flag_spec], [1],
- [Compiler flag to generate shared objects directly from archives])
-_LT_TAGDECL([], [compiler_needs_object], [1],
- [Whether the compiler copes with passing no objects directly])
-_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
- [Create an old-style archive from a shared archive])
-_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
- [Create a temporary old-style archive to link instead of a shared archive])
-_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
-_LT_TAGDECL([], [archive_expsym_cmds], [2])
-_LT_TAGDECL([], [module_cmds], [2],
- [Commands used to build a loadable module if different from building
- a shared archive.])
-_LT_TAGDECL([], [module_expsym_cmds], [2])
-_LT_TAGDECL([], [with_gnu_ld], [1],
- [Whether we are building with GNU ld or not])
-_LT_TAGDECL([], [allow_undefined_flag], [1],
- [Flag that allows shared libraries with undefined symbols to be built])
-_LT_TAGDECL([], [no_undefined_flag], [1],
- [Flag that enforces no undefined symbols])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
- [Flag to hardcode $libdir into a binary during linking.
- This must work even if $libdir does not exist])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec_ld], [1],
- [[If ld is used when linking, flag to hardcode $libdir into a binary
- during linking. This must work even if $libdir does not exist]])
-_LT_TAGDECL([], [hardcode_libdir_separator], [1],
- [Whether we need a single "-rpath" flag with a separated argument])
-_LT_TAGDECL([], [hardcode_direct], [0],
- [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
- DIR into the resulting binary])
-_LT_TAGDECL([], [hardcode_direct_absolute], [0],
- [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
- DIR into the resulting binary and the resulting library dependency is
- "absolute", i.e impossible to change by setting ${shlibpath_var} if the
- library is relocated])
-_LT_TAGDECL([], [hardcode_minus_L], [0],
- [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
- into the resulting binary])
-_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
- [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
- into the resulting binary])
-_LT_TAGDECL([], [hardcode_automatic], [0],
- [Set to "yes" if building a shared library automatically hardcodes DIR
- into the library and all subsequent libraries and executables linked
- against it])
-_LT_TAGDECL([], [inherit_rpath], [0],
- [Set to yes if linker adds runtime paths of dependent libraries
- to runtime path list])
-_LT_TAGDECL([], [link_all_deplibs], [0],
- [Whether libtool must link a program against all its dependency libraries])
-_LT_TAGDECL([], [fix_srcfile_path], [1],
- [Fix the shell variable $srcfile for the compiler])
-_LT_TAGDECL([], [always_export_symbols], [0],
- [Set to "yes" if exported symbols are required])
-_LT_TAGDECL([], [export_symbols_cmds], [2],
- [The commands to list exported symbols])
-_LT_TAGDECL([], [exclude_expsyms], [1],
- [Symbols that should not be listed in the preloaded symbols])
-_LT_TAGDECL([], [include_expsyms], [1],
- [Symbols that must always be exported])
-_LT_TAGDECL([], [prelink_cmds], [2],
- [Commands necessary for linking programs (against libraries) with templates])
-_LT_TAGDECL([], [file_list_spec], [1],
- [Specify filename containing input files])
-dnl FIXME: Not yet implemented
-dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
-dnl [Compiler flag to generate thread safe objects])
-])# _LT_LINKER_SHLIBS
-
-
-# _LT_LANG_C_CONFIG([TAG])
-# ------------------------
-# Ensure that the configuration variables for a C compiler are suitably
-# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_C_CONFIG],
-[m4_require([_LT_DECL_EGREP])dnl
-lt_save_CC="$CC"
-AC_LANG_PUSH(C)
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-_LT_TAG_COMPILER
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
- LT_SYS_DLOPEN_SELF
- _LT_CMD_STRIPLIB
-
- # Report which library types will actually be built
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
-
- aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_CONFIG($1)
-fi
-AC_LANG_POP
-CC="$lt_save_CC"
-])# _LT_LANG_C_CONFIG
-
-
-# _LT_PROG_CXX
-# ------------
-# Since AC_PROG_CXX is broken, in that it returns g++ if there is no c++
-# compiler, we have our own version here.
-m4_defun([_LT_PROG_CXX],
-[
-pushdef([AC_MSG_ERROR], [_lt_caught_CXX_error=yes])
-AC_PROG_CXX
-if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
- ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
- (test "X$CXX" != "Xg++"))) ; then
- AC_PROG_CXXCPP
-else
- _lt_caught_CXX_error=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_CXX
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_CXX], [])
-
-
-# _LT_LANG_CXX_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a C++ compiler are suitably
-# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_CXX_CONFIG],
-[AC_REQUIRE([_LT_PROG_CXX])dnl
-m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-m4_require([_LT_DECL_EGREP])dnl
-
-AC_LANG_PUSH(C++)
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(compiler_needs_object, $1)=no
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for C++ test sources.
-ac_ext=cpp
-
-# Object file extension for compiled C++ test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the CXX compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_caught_CXX_error" != yes; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="int some_variable = 0;"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC=$CC
- lt_save_LD=$LD
- lt_save_GCC=$GCC
- GCC=$GXX
- lt_save_with_gnu_ld=$with_gnu_ld
- lt_save_path_LD=$lt_cv_path_LD
- if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
- lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
- else
- $as_unset lt_cv_prog_gnu_ld
- fi
- if test -n "${lt_cv_path_LDCXX+set}"; then
- lt_cv_path_LD=$lt_cv_path_LDCXX
- else
- $as_unset lt_cv_path_LD
- fi
- test -z "${LDCXX+set}" || LD=$LDCXX
- CC=${CXX-"c++"}
- compiler=$CC
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
-
- if test -n "$compiler"; then
- # We don't want -fno-exception when compiling C++ code, so set the
- # no_builtin_flag separately
- if test "$GXX" = yes; then
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
- else
- _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
- fi
-
- if test "$GXX" = yes; then
- # Set up default GNU C++ configuration
-
- LT_PATH_LD
-
- # Check if GNU C++ uses GNU ld as the underlying linker, since the
- # archiving commands below assume that GNU ld is being used.
- if test "$with_gnu_ld" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-
- # If archive_cmds runs LD, not CC, wlarc should be empty
- # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
- # investigate it a little bit more. (MM)
- wlarc='${wl}'
-
- # ancient GNU ld didn't support --whole-archive et. al.
- if eval "`$CC -print-prog-name=ld` --help 2>&1" |
- $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
- else
- _LT_TAGVAR(whole_archive_flag_spec, $1)=
- fi
- else
- with_gnu_ld=no
- wlarc=
-
- # A generic and very simple default shared library creation
- # command for GNU C++ for the case where it uses the native
- # linker, instead of GNU ld. If possible, this setting should
- # overridden to take advantage of the native linker features on
- # the platform it is being used on.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- fi
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-
- else
- GXX=no
- with_gnu_ld=no
- wlarc=
- fi
-
- # PORTME: fill in a description of your system's C++ link characteristics
- AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
- _LT_TAGVAR(ld_shlibs, $1)=yes
- case $host_os in
- aix3*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aix[[4-9]]*)
- if test "$host_cpu" = ia64; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=""
- else
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
- case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
- for ld_flag in $LDFLAGS; do
- case $ld_flag in
- *-brtl*)
- aix_use_runtimelinking=yes
- break
- ;;
- esac
- done
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- _LT_TAGVAR(archive_cmds, $1)=''
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
-
- if test "$GXX" = yes; then
- case $host_os in aix4.[[012]]|aix4.[[012]].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- _LT_TAGVAR(hardcode_direct, $1)=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- _LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=
- fi
- esac
- shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
- fi
- else
- # not using gcc
- if test "$host_cpu" = ia64; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
- else
- shared_flag='${wl}-bM:SRE'
- fi
- fi
- fi
-
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to
- # export.
- _LT_TAGVAR(always_export_symbols, $1)=yes
- if test "$aix_use_runtimelinking" = yes; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
- # Determine the default libpath from the value encoded in an empty
- # executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
-
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
- else
- if test "$host_cpu" = ia64; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
- _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- _LT_SYS_MODULE_PATH_AIX
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
- # Exported symbols can be pulled into shared objects from archives
- _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- # This is similar to how AIX traditionally builds its shared
- # libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
- fi
- fi
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- chorus*)
- case $cc_basename in
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
- # as there is no search path for DLLs.
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(always_export_symbols, $1)=no
- _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- darwin* | rhapsody*)
- _LT_DARWIN_LINKER_FEATURES($1)
- ;;
-
- dgux*)
- case $cc_basename in
- ec++*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- ghcx*)
- # Green Hills C++ Compiler
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- freebsd[[12]]*)
- # C++ shared libraries reported to be fairly broken before
- # switch to ELF
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- freebsd-elf*)
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- ;;
-
- freebsd* | dragonfly*)
- # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
- # conventions
- _LT_TAGVAR(ld_shlibs, $1)=yes
- ;;
-
- gnu*)
- ;;
-
- hpux9*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
- # but as the default
- # location of the library.
-
- case $cc_basename in
- CC*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aCC*)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- *)
- if test "$GXX" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- hpux10*|hpux11*)
- if test $with_gnu_ld = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- ;;
- *)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- ;;
- esac
- fi
- case $host_cpu in
- hppa*64*|ia64*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- ;;
- *)
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
- # but as the default
- # location of the library.
- ;;
- esac
-
- case $cc_basename in
- CC*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- aCC*)
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- esac
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- *)
- if test "$GXX" = yes; then
- if test $with_gnu_ld = no; then
- case $host_cpu in
- hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- ;;
- esac
- fi
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- interix[[3-9]]*)
- _LT_TAGVAR(hardcode_direct, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
- irix5* | irix6*)
- case $cc_basename in
- CC*)
- # SGI C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
-
- # Archives containing C++ object files must be created using
- # "CC -ar", where "CC" is the IRIX C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
- ;;
- *)
- if test "$GXX" = yes; then
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` -o $lib'
- fi
- fi
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- ;;
- esac
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(inherit_rpath, $1)=yes
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- KCC*)
- # Kuck and Associates, Inc. (KAI) C++ Compiler
-
- # KCC will only create a shared library if the output file
- # ends with ".so" (or ".sl" for HP-UX), so rename the library
- # to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
-
- # Archives containing C++ object files must be created using
- # "CC -Bstatic", where "CC" is the KAI C++ compiler.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
- ;;
- icpc* | ecpc* )
- # Intel C++
- with_gnu_ld=yes
- # version 8.0 and above of icpc choke on multiply defined symbols
- # if we add $predep_objects and $postdep_objects, however 7.1 and
- # earlier do not add the objects themselves.
- case `$CC -V 2>&1` in
- *"Version 7."*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- *) # Version 8.0 or newer
- tmp_idyn=
- case $host_cpu in
- ia64*) tmp_idyn=' -i_dynamic';;
- esac
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- ;;
- esac
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
- ;;
- pgCC* | pgcpp*)
- # Portland Group C++ compiler
- case `$CC -V` in
- *pgCC\ [[1-5]]* | *pgcpp\ [[1-5]]*)
- _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
- compile_command="$compile_command `find $tpldir -name \*.o | $NL2SP`"'
- _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
- $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | $NL2SP`~
- $RANLIB $oldlib'
- _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
- ;;
- *) # Version 6 will use weak symbols
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- ;;
- cxx*)
- # Compaq C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
-
- runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`$ECHO "X$templist" | $Xsed -e "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- xl*)
- # IBM XL 8.0 on PPC, with GNU ld
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
- fi
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
- _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- _LT_TAGVAR(compiler_needs_object, $1)=yes
-
- # Not sure whether something based on
- # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
- # would be better.
- output_verbose_link_cmd='echo'
-
- # Archives containing C++ object files must be created using
- # "CC -xar", where "CC" is the Sun C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
- ;;
- esac
- ;;
- esac
- ;;
-
- lynxos*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- m88k*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- mvs*)
- case $cc_basename in
- cxx*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- netbsd*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
- wlarc=
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- fi
- # Workaround some broken pre-1.5 toolchains
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
- ;;
-
- *nto* | *qnx*)
- _LT_TAGVAR(ld_shlibs, $1)=yes
- ;;
-
- openbsd2*)
- # C++ shared libraries are fairly broken
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- openbsd*)
- if test -f /usr/libexec/ld.so; then
- _LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
- fi
- output_verbose_link_cmd=echo
- else
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
-
- osf3* | osf4* | osf5*)
- case $cc_basename in
- KCC*)
- # Kuck and Associates, Inc. (KAI) C++ Compiler
-
- # KCC will only create a shared library if the output file
- # ends with ".so" (or ".sl" for HP-UX), so rename the library
- # to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Archives containing C++ object files must be created using
- # the KAI C++ compiler.
- case $host in
- osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
- *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
- esac
- ;;
- RCC*)
- # Rational C++ 2.4.1
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- cxx*)
- case $host in
- osf3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && $ECHO "X${wl}-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- ;;
- *)
- _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
- echo "-hidden">> $lib.exp~
- $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~
- $RM $lib.exp'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- #
- # There doesn't appear to be a way to prevent this compiler from
- # explicitly linking system object files so we need to strip them
- # from the output so that they don't get included in the library
- # dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`$ECHO "X$templist" | $Xsed -e "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; $ECHO "X$list" | $Xsed'
- ;;
- *)
- if test "$GXX" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- case $host in
- osf3*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- ;;
- esac
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=:
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
-
- else
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- fi
- ;;
- esac
- ;;
-
- psos*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- sunos4*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.x
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- lcc*)
- # Lucid
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- solaris*)
- case $cc_basename in
- CC*)
- # Sun C++ 4.2, 5.x and Centerline C++
- _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
- _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
- ;;
- esac
- _LT_TAGVAR(link_all_deplibs, $1)=yes
-
- output_verbose_link_cmd='echo'
-
- # Archives containing C++ object files must be created using
- # "CC -xar", where "CC" is the Sun C++ compiler. This is
- # necessary to make sure instantiated templates are included
- # in the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
- ;;
- gcx*)
- # Green Hills C++ Compiler
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
-
- # The C++ compiler must be used to create the archive.
- _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
- ;;
- *)
- # GNU C++ compiler with Solaris linker
- if test "$GXX" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
- if $CC --version | $GREP -v '^2\.7' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
- else
- # g++ 2.7 appears to require `-G' NOT `-shared' on this
- # platform.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
-
- # Commands to make compiler produce verbose output that lists
- # what "hidden" libraries, object files and flags are used when
- # linking a shared library.
- output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP "\-L"'
- fi
-
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
- case $host_os in
- solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
- *)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
- ;;
- esac
- fi
- ;;
- esac
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- runpath_var='LD_RUN_PATH'
-
- case $cc_basename in
- CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
- _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
- _LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
- runpath_var='LD_RUN_PATH'
-
- case $cc_basename in
- CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- ;;
-
- tandem*)
- case $cc_basename in
- NCC*)
- # NonStop-UX NCC 3.20
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
- ;;
-
- vxworks*)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- *)
- # FIXME: insert proper C++ library support
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
- esac
-
- AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
- test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
-
- _LT_TAGVAR(GCC, $1)="$GXX"
- _LT_TAGVAR(LD, $1)="$LD"
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_SYS_HIDDEN_LIBDEPS($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- CC=$lt_save_CC
- LDCXX=$LD
- LD=$lt_save_LD
- GCC=$lt_save_GCC
- with_gnu_ld=$lt_save_with_gnu_ld
- lt_cv_path_LDCXX=$lt_cv_path_LD
- lt_cv_path_LD=$lt_save_path_LD
- lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
- lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
-fi # test "$_lt_caught_CXX_error" != yes
-
-AC_LANG_POP
-])# _LT_LANG_CXX_CONFIG
-
-
-# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
-# ---------------------------------
-# Figure out "hidden" library dependencies from verbose
-# compiler output when linking a shared library.
-# Parse the compiler output and extract the necessary
-# objects, libraries and library flags.
-m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
-# Dependencies to place before and after the object being linked:
-_LT_TAGVAR(predep_objects, $1)=
-_LT_TAGVAR(postdep_objects, $1)=
-_LT_TAGVAR(predeps, $1)=
-_LT_TAGVAR(postdeps, $1)=
-_LT_TAGVAR(compiler_lib_search_path, $1)=
-
-dnl we can't use the lt_simple_compile_test_code here,
-dnl because it contains code intended for an executable,
-dnl not a library. It's possible we should let each
-dnl tag define a new lt_????_link_test_code variable,
-dnl but it's only used here...
-m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
-int a;
-void foo (void) { a = 0; }
-_LT_EOF
-], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
-class Foo
-{
-public:
- Foo (void) { a = 0; }
-private:
- int a;
-};
-_LT_EOF
-], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
- subroutine foo
- implicit none
- integer*4 a
- a=0
- return
- end
-_LT_EOF
-], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
- subroutine foo
- implicit none
- integer a
- a=0
- return
- end
-_LT_EOF
-], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
-public class foo {
- private int a;
- public void bar (void) {
- a = 0;
- }
-};
-_LT_EOF
-])
-dnl Parse the compiler output and extract the necessary
-dnl objects, libraries and library flags.
-if AC_TRY_EVAL(ac_compile); then
- # Parse the compiler output and extract the necessary
- # objects, libraries and library flags.
-
- # Sentinel used to keep track of whether or not we are before
- # the conftest object file.
- pre_test_object_deps_done=no
-
- for p in `eval "$output_verbose_link_cmd"`; do
- case $p in
-
- -L* | -R* | -l*)
- # Some compilers place space between "-{L,R}" and the path.
- # Remove the space.
- if test $p = "-L" ||
- test $p = "-R"; then
- prev=$p
- continue
- else
- prev=
- fi
-
- if test "$pre_test_object_deps_done" = no; then
- case $p in
- -L* | -R*)
- # Internal compiler library paths should come after those
- # provided the user. The postdeps already come after the
- # user supplied libs so there is no need to process them.
- if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
- _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
- else
- _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
- fi
- ;;
- # The "-l" case would never come before the object being
- # linked, so don't bother handling this case.
- esac
- else
- if test -z "$_LT_TAGVAR(postdeps, $1)"; then
- _LT_TAGVAR(postdeps, $1)="${prev}${p}"
- else
- _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}"
- fi
- fi
- ;;
-
- *.$objext)
- # This assumes that the test object file only shows up
- # once in the compiler output.
- if test "$p" = "conftest.$objext"; then
- pre_test_object_deps_done=yes
- continue
- fi
-
- if test "$pre_test_object_deps_done" = no; then
- if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
- _LT_TAGVAR(predep_objects, $1)="$p"
- else
- _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
- fi
- else
- if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
- _LT_TAGVAR(postdep_objects, $1)="$p"
- else
- _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
- fi
- fi
- ;;
-
- *) ;; # Ignore the rest.
-
- esac
- done
-
- # Clean up.
- rm -f a.out a.exe
-else
- echo "libtool.m4: error: problem compiling $1 test program"
-fi
-
-$RM -f confest.$objext
-
-# PORTME: override above test on systems where it is broken
-m4_if([$1], [CXX],
-[case $host_os in
-interix[[3-9]]*)
- # Interix 3.5 installs completely hosed .la files for C++, so rather than
- # hack all around it, let's just trust "g++" to DTRT.
- _LT_TAGVAR(predep_objects,$1)=
- _LT_TAGVAR(postdep_objects,$1)=
- _LT_TAGVAR(postdeps,$1)=
- ;;
-
-linux*)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
-
- # The more standards-conforming stlport4 library is
- # incompatible with the Cstd library. Avoid specifying
- # it if it's in CXXFLAGS. Ignore libCrun as
- # -library=stlport4 depends on it.
- case " $CXX $CXXFLAGS " in
- *" -library=stlport4 "*)
- solaris_use_stlport4=yes
- ;;
- esac
-
- if test "$solaris_use_stlport4" != yes; then
- _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-
-solaris*)
- case $cc_basename in
- CC*)
- # The more standards-conforming stlport4 library is
- # incompatible with the Cstd library. Avoid specifying
- # it if it's in CXXFLAGS. Ignore libCrun as
- # -library=stlport4 depends on it.
- case " $CXX $CXXFLAGS " in
- *" -library=stlport4 "*)
- solaris_use_stlport4=yes
- ;;
- esac
-
- # Adding this requires a known-good setup of shared libraries for
- # Sun compiler versions before 5.6, else PIC objects from an old
- # archive will be linked into the output, leading to subtle bugs.
- if test "$solaris_use_stlport4" != yes; then
- _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-esac
-])
-
-case " $_LT_TAGVAR(postdeps, $1) " in
-*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
-esac
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=
-if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
-fi
-_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
- [The directories searched by this compiler when creating a shared library])
-_LT_TAGDECL([], [predep_objects], [1],
- [Dependencies to place before and after the objects being linked to
- create a shared library])
-_LT_TAGDECL([], [postdep_objects], [1])
-_LT_TAGDECL([], [predeps], [1])
-_LT_TAGDECL([], [postdeps], [1])
-_LT_TAGDECL([], [compiler_lib_search_path], [1],
- [The library search path used internally by the compiler when linking
- a shared library])
-])# _LT_SYS_HIDDEN_LIBDEPS
-
-
-# _LT_PROG_F77
-# ------------
-# Since AC_PROG_F77 is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-m4_defun([_LT_PROG_F77],
-[
-pushdef([AC_MSG_ERROR], [_lt_disable_F77=yes])
-AC_PROG_F77
-if test -z "$F77" || test "X$F77" = "Xno"; then
- _lt_disable_F77=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_F77
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_F77], [])
-
-
-# _LT_LANG_F77_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for a Fortran 77 compiler are
-# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_F77_CONFIG],
-[AC_REQUIRE([_LT_PROG_F77])dnl
-AC_LANG_PUSH(Fortran 77)
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for f77 test sources.
-ac_ext=f
-
-# Object file extension for compiled f77 test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the F77 compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_disable_F77" != yes; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="\
- subroutine t
- return
- end
-"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code="\
- program t
- end
-"
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC="$CC"
- lt_save_GCC=$GCC
- CC=${F77-"f77"}
- compiler=$CC
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
- GCC=$G77
- if test -n "$compiler"; then
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
- aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_TAGVAR(GCC, $1)="$G77"
- _LT_TAGVAR(LD, $1)="$LD"
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- GCC=$lt_save_GCC
- CC="$lt_save_CC"
-fi # test "$_lt_disable_F77" != yes
-
-AC_LANG_POP
-])# _LT_LANG_F77_CONFIG
-
-
-# _LT_PROG_FC
-# -----------
-# Since AC_PROG_FC is broken, in that it returns the empty string
-# if there is no fortran compiler, we have our own version here.
-m4_defun([_LT_PROG_FC],
-[
-pushdef([AC_MSG_ERROR], [_lt_disable_FC=yes])
-AC_PROG_FC
-if test -z "$FC" || test "X$FC" = "Xno"; then
- _lt_disable_FC=yes
-fi
-popdef([AC_MSG_ERROR])
-])# _LT_PROG_FC
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([_LT_PROG_FC], [])
-
-
-# _LT_LANG_FC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for a Fortran compiler are
-# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_FC_CONFIG],
-[AC_REQUIRE([_LT_PROG_FC])dnl
-AC_LANG_PUSH(Fortran)
-
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-_LT_TAGVAR(allow_undefined_flag, $1)=
-_LT_TAGVAR(always_export_symbols, $1)=no
-_LT_TAGVAR(archive_expsym_cmds, $1)=
-_LT_TAGVAR(export_dynamic_flag_spec, $1)=
-_LT_TAGVAR(hardcode_direct, $1)=no
-_LT_TAGVAR(hardcode_direct_absolute, $1)=no
-_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
-_LT_TAGVAR(hardcode_libdir_separator, $1)=
-_LT_TAGVAR(hardcode_minus_L, $1)=no
-_LT_TAGVAR(hardcode_automatic, $1)=no
-_LT_TAGVAR(inherit_rpath, $1)=no
-_LT_TAGVAR(module_cmds, $1)=
-_LT_TAGVAR(module_expsym_cmds, $1)=
-_LT_TAGVAR(link_all_deplibs, $1)=unknown
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-_LT_TAGVAR(no_undefined_flag, $1)=
-_LT_TAGVAR(whole_archive_flag_spec, $1)=
-_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
-
-# Source file extension for fc test sources.
-ac_ext=${ac_fc_srcext-f}
-
-# Object file extension for compiled fc test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# No sense in running all these tests if we already determined that
-# the FC compiler isn't working. Some variables (like enable_shared)
-# are currently assumed to apply to all compilers on this platform,
-# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_disable_FC" != yes; then
- # Code to be used in simple compile tests
- lt_simple_compile_test_code="\
- subroutine t
- return
- end
-"
-
- # Code to be used in simple link tests
- lt_simple_link_test_code="\
- program t
- end
-"
-
- # ltmain only uses $CC for tagged configurations so make sure $CC is set.
- _LT_TAG_COMPILER
-
- # save warnings/boilerplate of simple test code
- _LT_COMPILER_BOILERPLATE
- _LT_LINKER_BOILERPLATE
-
- # Allow CC to be a program name with arguments.
- lt_save_CC="$CC"
- lt_save_GCC=$GCC
- CC=${FC-"f95"}
- compiler=$CC
- GCC=$ac_cv_fc_compiler_gnu
-
- _LT_TAGVAR(compiler, $1)=$CC
- _LT_CC_BASENAME([$compiler])
-
- if test -n "$compiler"; then
- AC_MSG_CHECKING([if libtool supports shared libraries])
- AC_MSG_RESULT([$can_build_shared])
-
- AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
- aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- AC_MSG_RESULT([$enable_shared])
-
- AC_MSG_CHECKING([whether to build static libraries])
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- AC_MSG_RESULT([$enable_static])
-
- _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu"
- _LT_TAGVAR(LD, $1)="$LD"
-
- ## CAVEAT EMPTOR:
- ## There is no encapsulation within the following macros, do not change
- ## the running order or otherwise move them around unless you know exactly
- ## what you are doing...
- _LT_SYS_HIDDEN_LIBDEPS($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_SYS_DYNAMIC_LINKER($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
- fi # test -n "$compiler"
-
- GCC=$lt_save_GCC
- CC="$lt_save_CC"
-fi # test "$_lt_disable_FC" != yes
-
-AC_LANG_POP
-])# _LT_LANG_FC_CONFIG
-
-
-# _LT_LANG_GCJ_CONFIG([TAG])
-# --------------------------
-# Ensure that the configuration variables for the GNU Java Compiler compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_GCJ_CONFIG],
-[AC_REQUIRE([LT_PROG_GCJ])dnl
-AC_LANG_SAVE
-
-# Source file extension for Java test sources.
-ac_ext=java
-
-# Object file extension for compiled Java test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="class foo {}"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC="$CC"
-lt_save_GCC=$GCC
-GCC=yes
-CC=${GCJ-"gcj"}
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)="$LD"
-_LT_CC_BASENAME([$compiler])
-
-# GCJ did not exist at the time GCC didn't implicitly link libc in.
-_LT_TAGVAR(archive_cmds_need_lc, $1)=no
-
-_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
-
-if test -n "$compiler"; then
- _LT_COMPILER_NO_RTTI($1)
- _LT_COMPILER_PIC($1)
- _LT_COMPILER_C_O($1)
- _LT_COMPILER_FILE_LOCKS($1)
- _LT_LINKER_SHLIBS($1)
- _LT_LINKER_HARDCODE_LIBPATH($1)
-
- _LT_CONFIG($1)
-fi
-
-AC_LANG_RESTORE
-
-GCC=$lt_save_GCC
-CC="$lt_save_CC"
-])# _LT_LANG_GCJ_CONFIG
-
-
-# _LT_LANG_RC_CONFIG([TAG])
-# -------------------------
-# Ensure that the configuration variables for the Windows resource compiler
-# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
-m4_defun([_LT_LANG_RC_CONFIG],
-[AC_REQUIRE([LT_PROG_RC])dnl
-AC_LANG_SAVE
-
-# Source file extension for RC test sources.
-ac_ext=rc
-
-# Object file extension for compiled RC test sources.
-objext=o
-_LT_TAGVAR(objext, $1)=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
-
-# Code to be used in simple link tests
-lt_simple_link_test_code="$lt_simple_compile_test_code"
-
-# ltmain only uses $CC for tagged configurations so make sure $CC is set.
-_LT_TAG_COMPILER
-
-# save warnings/boilerplate of simple test code
-_LT_COMPILER_BOILERPLATE
-_LT_LINKER_BOILERPLATE
-
-# Allow CC to be a program name with arguments.
-lt_save_CC="$CC"
-lt_save_GCC=$GCC
-GCC=
-CC=${RC-"windres"}
-compiler=$CC
-_LT_TAGVAR(compiler, $1)=$CC
-_LT_CC_BASENAME([$compiler])
-_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
-
-if test -n "$compiler"; then
- :
- _LT_CONFIG($1)
-fi
-
-GCC=$lt_save_GCC
-AC_LANG_RESTORE
-CC="$lt_save_CC"
-])# _LT_LANG_RC_CONFIG
-
-
-# LT_PROG_GCJ
-# -----------
-AC_DEFUN([LT_PROG_GCJ],
-[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
- [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
- [AC_CHECK_TOOL(GCJ, gcj,)
- test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
- AC_SUBST(GCJFLAGS)])])[]dnl
-])
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
-
-
-# LT_PROG_RC
-# ----------
-AC_DEFUN([LT_PROG_RC],
-[AC_CHECK_TOOL(RC, windres,)
-])
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_RC], [])
-
-
-# _LT_DECL_EGREP
-# --------------
-# If we don't have a new enough Autoconf to choose the best grep
-# available, choose the one first in the user's PATH.
-m4_defun([_LT_DECL_EGREP],
-[AC_REQUIRE([AC_PROG_EGREP])dnl
-AC_REQUIRE([AC_PROG_FGREP])dnl
-test -z "$GREP" && GREP=grep
-_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
-_LT_DECL([], [EGREP], [1], [An ERE matcher])
-_LT_DECL([], [FGREP], [1], [A literal string matcher])
-dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
-AC_SUBST([GREP])
-])
-
-
-# _LT_DECL_OBJDUMP
-# --------------
-# If we don't have a new enough Autoconf to choose the best objdump
-# available, choose the one first in the user's PATH.
-m4_defun([_LT_DECL_OBJDUMP],
-[AC_CHECK_TOOL(OBJDUMP, objdump, false)
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
-AC_SUBST([OBJDUMP])
-])
-
-
-# _LT_DECL_SED
-# ------------
-# Check for a fully-functional sed program, that truncates
-# as few characters as possible. Prefer GNU sed if found.
-m4_defun([_LT_DECL_SED],
-[AC_PROG_SED
-test -z "$SED" && SED=sed
-Xsed="$SED -e 1s/^X//"
-_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
-_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
- [Sed that helps us avoid accidentally triggering echo(1) options like -n])
-])# _LT_DECL_SED
-
-m4_ifndef([AC_PROG_SED], [
-# NOTE: This macro has been submitted for inclusion into #
-# GNU Autoconf as AC_PROG_SED. When it is available in #
-# a released version of Autoconf we should remove this #
-# macro and use it instead. #
-
-m4_defun([AC_PROG_SED],
-[AC_MSG_CHECKING([for a sed that does not truncate output])
-AC_CACHE_VAL(lt_cv_path_SED,
-[# Loop through the user's path and test for sed and gsed.
-# Then use that list of sed's as ones to test for truncation.
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for lt_ac_prog in sed gsed; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
- lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
- fi
- done
- done
-done
-IFS=$as_save_IFS
-lt_ac_max=0
-lt_ac_count=0
-# Add /usr/xpg4/bin/sed as it is typically found on Solaris
-# along with /bin/sed that truncates output.
-for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
- test ! -f $lt_ac_sed && continue
- cat /dev/null > conftest.in
- lt_ac_count=0
- echo $ECHO_N "0123456789$ECHO_C" >conftest.in
- # Check for GNU sed and select it if it is found.
- if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
- lt_cv_path_SED=$lt_ac_sed
- break
- fi
- while true; do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo >>conftest.nl
- $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
- cmp -s conftest.out conftest.nl || break
- # 10000 chars as input seems more than enough
- test $lt_ac_count -gt 10 && break
- lt_ac_count=`expr $lt_ac_count + 1`
- if test $lt_ac_count -gt $lt_ac_max; then
- lt_ac_max=$lt_ac_count
- lt_cv_path_SED=$lt_ac_sed
- fi
- done
-done
-])
-SED=$lt_cv_path_SED
-AC_SUBST([SED])
-AC_MSG_RESULT([$SED])
-])#AC_PROG_SED
-])#m4_ifndef
-
-# Old name:
-AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([LT_AC_PROG_SED], [])
-
-
-# _LT_CHECK_SHELL_FEATURES
-# ------------------------
-# Find out whether the shell is Bourne or XSI compatible,
-# or has some other useful features.
-m4_defun([_LT_CHECK_SHELL_FEATURES],
-[AC_MSG_CHECKING([whether the shell understands some XSI constructs])
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
- test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
- = c,a/b,, \
- && eval 'test $(( 1 + 1 )) -eq 2 \
- && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
- && xsi_shell=yes
-AC_MSG_RESULT([$xsi_shell])
-_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell'])
-
-AC_MSG_CHECKING([whether the shell understands "+="])
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \
- >/dev/null 2>&1 \
- && lt_shell_append=yes
-AC_MSG_RESULT([$lt_shell_append])
-_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append'])
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
- lt_unset=unset
-else
- lt_unset=false
-fi
-_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
- # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
- lt_SP2NL='tr \040 \012'
- lt_NL2SP='tr \015\012 \040\040'
- ;;
- *) # EBCDIC based system
- lt_SP2NL='tr \100 \n'
- lt_NL2SP='tr \r\n \100\100'
- ;;
-esac
-_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
-_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
-])# _LT_CHECK_SHELL_FEATURES
-
-
-# _LT_PROG_XSI_SHELLFNS
-# ---------------------
-# Bourne and XSI compatible variants of some useful shell functions.
-m4_defun([_LT_PROG_XSI_SHELLFNS],
-[case $xsi_shell in
- yes)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result="${1##*/}"
-}
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
- func_basename_result="${1##*/}"
-}
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-func_stripname ()
-{
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary parameter first.
- func_stripname_result=${3}
- func_stripname_result=${func_stripname_result#"${1}"}
- func_stripname_result=${func_stripname_result%"${2}"}
-}
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=${1%%=*}
- func_opt_split_arg=${1#*=}
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- case ${1} in
- *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
- *) func_lo2o_result=${1} ;;
- esac
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=${1%.*}.lo
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=$(( $[*] ))
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=${#1}
-}
-
-_LT_EOF
- ;;
- *) # Bourne compatible functions.
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-dnl func_dirname_and_basename
-dnl A portable version of this function is already defined in general.m4sh
-dnl so there is no need for it here.
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-# func_strip_suffix prefix name
-func_stripname ()
-{
- case ${2} in
- .*) func_stripname_result=`$ECHO "X${3}" \
- | $Xsed -e "s%^${1}%%" -e "s%\\\\${2}\$%%"`;;
- *) func_stripname_result=`$ECHO "X${3}" \
- | $Xsed -e "s%^${1}%%" -e "s%${2}\$%%"`;;
- esac
-}
-
-# sed scripts:
-my_sed_long_opt='1s/^\(-[[^=]]*\)=.*/\1/;q'
-my_sed_long_arg='1s/^-[[^=]]*=//'
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_opt"`
- func_opt_split_arg=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_arg"`
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- func_lo2o_result=`$ECHO "X${1}" | $Xsed -e "$lo2o"`
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=`$ECHO "X${1}" | $Xsed -e 's/\.[[^.]]*$/.lo/'`
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=`expr "$[@]"`
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=`expr "$[1]" : ".*" 2>/dev/null || echo $max_cmd_len`
-}
-
-_LT_EOF
-esac
-
-case $lt_shell_append in
- yes)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$[1]+=\$[2]"
-}
-_LT_EOF
- ;;
- *)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$[1]=\$$[1]\$[2]"
-}
-
-_LT_EOF
- ;;
- esac
-])
-
-# Helper functions for option handling. -*- Autoconf -*-
-#
-# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
-# Written by Gary V. Vaughan, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 6 ltoptions.m4
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
-
-
-# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
-# ------------------------------------------
-m4_define([_LT_MANGLE_OPTION],
-[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
-
-
-# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
-# ---------------------------------------
-# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
-# matching handler defined, dispatch to it. Other OPTION-NAMEs are
-# saved as a flag.
-m4_define([_LT_SET_OPTION],
-[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
-m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
- _LT_MANGLE_DEFUN([$1], [$2]),
- [m4_warning([Unknown $1 option `$2'])])[]dnl
-])
-
-
-# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
-# ------------------------------------------------------------
-# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
-m4_define([_LT_IF_OPTION],
-[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
-
-
-# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
-# -------------------------------------------------------
-# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
-# are set.
-m4_define([_LT_UNLESS_OPTIONS],
-[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
- [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
- [m4_define([$0_found])])])[]dnl
-m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
-])[]dnl
-])
-
-
-# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
-# ----------------------------------------
-# OPTION-LIST is a space-separated list of Libtool options associated
-# with MACRO-NAME. If any OPTION has a matching handler declared with
-# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
-# the unknown option and exit.
-m4_defun([_LT_SET_OPTIONS],
-[# Set options
-m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
- [_LT_SET_OPTION([$1], _LT_Option)])
-
-m4_if([$1],[LT_INIT],[
- dnl
- dnl Simply set some default values (i.e off) if boolean options were not
- dnl specified:
- _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
- ])
- _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
- ])
- dnl
- dnl If no reference was made to various pairs of opposing options, then
- dnl we run the default mode handler for the pair. For example, if neither
- dnl `shared' nor `disable-shared' was passed, we enable building of shared
- dnl archives by default:
- _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
- _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
- _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
- _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
- [_LT_ENABLE_FAST_INSTALL])
- ])
-])# _LT_SET_OPTIONS
-
-
-
-# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
-# -----------------------------------------
-m4_define([_LT_MANGLE_DEFUN],
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-
-
-# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
-# -----------------------------------------------
-m4_define([LT_OPTION_DEFINE],
-[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
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-
-
-# dlopen
-# ------
-LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
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-
-AU_DEFUN([AC_LIBTOOL_DLOPEN],
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-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `dlopen' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
-
-
-# win32-dll
-# ---------
-# Declare package support for building win32 dll's.
-LT_OPTION_DEFINE([LT_INIT], [win32-dll],
-[enable_win32_dll=yes
-
-case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-cegcc*)
- AC_CHECK_TOOL(AS, as, false)
- AC_CHECK_TOOL(DLLTOOL, dlltool, false)
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-
-test -z "$AS" && AS=as
-_LT_DECL([], [AS], [0], [Assembler program])dnl
-
-test -z "$DLLTOOL" && DLLTOOL=dlltool
-_LT_DECL([], [DLLTOOL], [0], [DLL creation program])dnl
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [0], [Object dumper program])dnl
-])# win32-dll
-
-AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-_LT_SET_OPTION([LT_INIT], [win32-dll])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `win32-dll' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
-
-
-# _LT_ENABLE_SHARED([DEFAULT])
-# ----------------------------
-# implement the --enable-shared flag, and supports the `shared' and
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-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
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-[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([shared],
- [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
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- no) enable_shared=no ;;
- *)
- enable_shared=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
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- fi
- done
- IFS="$lt_save_ifs"
- ;;
- esac],
- [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
-
- _LT_DECL([build_libtool_libs], [enable_shared], [0],
- [Whether or not to build shared libraries])
-])# _LT_ENABLE_SHARED
-
-LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
-
-# Old names:
-AC_DEFUN([AC_ENABLE_SHARED],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
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-
-AC_DEFUN([AC_DISABLE_SHARED],
-[_LT_SET_OPTION([LT_INIT], [disable-shared])
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-
-AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
-AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
-
-dnl aclocal-1.4 backwards compatibility:
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-dnl AC_DEFUN([AM_DISABLE_SHARED], [])
-
-
-
-# _LT_ENABLE_STATIC([DEFAULT])
-# ----------------------------
-# implement the --enable-static flag, and support the `static' and
-# `disable-static' LT_INIT options.
-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
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-[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
-AC_ARG_ENABLE([static],
- [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
- [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
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- *)
- enable_static=no
- # Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
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- IFS="$lt_save_ifs"
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-
- _LT_DECL([build_old_libs], [enable_static], [0],
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-])# _LT_ENABLE_STATIC
-
-LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
-
-# Old names:
-AC_DEFUN([AC_ENABLE_STATIC],
-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
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-
-AC_DEFUN([AC_DISABLE_STATIC],
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-
-AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
-AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
-
-dnl aclocal-1.4 backwards compatibility:
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-dnl AC_DEFUN([AM_DISABLE_STATIC], [])
-
-
-
-# _LT_ENABLE_FAST_INSTALL([DEFAULT])
-# ----------------------------------
-# implement the --enable-fast-install flag, and support the `fast-install'
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-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
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- enable_fast_install=no
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-
-_LT_DECL([fast_install], [enable_fast_install], [0],
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-])# _LT_ENABLE_FAST_INSTALL
-
-LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
-LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
-
-# Old names:
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-[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
-AC_DIAGNOSE([obsolete],
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-
-AU_DEFUN([AC_DISABLE_FAST_INSTALL],
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-AC_DIAGNOSE([obsolete],
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-
-dnl aclocal-1.4 backwards compatibility:
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-
-
-# _LT_WITH_PIC([MODE])
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-[AC_ARG_WITH([pic],
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-
-test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
-
-_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
-])# _LT_WITH_PIC
-
-LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
-LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
-
-# Old name:
-AU_DEFUN([AC_LIBTOOL_PICMODE],
-[_LT_SET_OPTION([LT_INIT], [pic-only])
-AC_DIAGNOSE([obsolete],
-[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `pic-only' option into LT_INIT's first parameter.])
-])
-
-dnl aclocal-1.4 backwards compatibility:
-dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
-
-
-m4_define([_LTDL_MODE], [])
-LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
- [m4_define([_LTDL_MODE], [nonrecursive])])
-LT_OPTION_DEFINE([LTDL_INIT], [recursive],
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-LT_OPTION_DEFINE([LTDL_INIT], [subproject],
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-
-m4_define([_LTDL_TYPE], [])
-LT_OPTION_DEFINE([LTDL_INIT], [installable],
- [m4_define([_LTDL_TYPE], [installable])])
-LT_OPTION_DEFINE([LTDL_INIT], [convenience],
- [m4_define([_LTDL_TYPE], [convenience])])
-
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-#
-# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
-# Written by Gary V. Vaughan, 2004
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 6 ltsugar.m4
-
-# This is to help aclocal find these macros, as it can't see m4_define.
-AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
-
-
-# lt_join(SEP, ARG1, [ARG2...])
-# -----------------------------
-# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
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-# versions in m4sugar had bugs.
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-[m4_if([$#], [1], [],
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-
-
-# lt_car(LIST)
-# lt_cdr(LIST)
-# ------------
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-# These macros are necessary as long as will still need to support
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-m4_define([lt_cdr],
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- [m4_dquote(m4_shift($@))])])
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-
-
-# lt_append(MACRO-NAME, STRING, [SEPARATOR])
-# ------------------------------------------
-# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
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-
-
-
-# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
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-[[m4_foreach([_Lt_prefix], [$2],
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-
-# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
-# -----------------------------------------------------------------------
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-
-# lt_dict_add(DICT, KEY, VALUE)
-# -----------------------------
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-
-# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
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-# lt_dict_fetch(DICT, KEY, [SUBKEY])
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-
-# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
-# -----------------------------------------------------------------
-m4_define([lt_if_dict_fetch],
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-# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
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-# Copyright (C) 2004 Free Software Foundation, Inc.
-# Written by Scott James Remnant, 2004
-#
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-# unlimited permission to copy and/or distribute it, with or without
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-
-# Generated from ltversion.in.
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-# serial 3017 ltversion.m4
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-# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
-# Written by Scott James Remnant, 2004.
-#
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to copy and/or distribute it, with or without
-# modifications, as long as this notice is preserved.
-
-# serial 4 lt~obsolete.m4
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- { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
-dummy=$tmp/dummy ;
-tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
-case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,) echo "int x;" > $dummy.c ;
- for c in cc gcc c89 c99 ; do
- if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
- CC_FOR_BUILD="$c"; break ;
- fi ;
- done ;
- if test x"$CC_FOR_BUILD" = x ; then
- CC_FOR_BUILD=no_compiler_found ;
- fi
- ;;
- ,,*) CC_FOR_BUILD=$CC ;;
- ,*,*) CC_FOR_BUILD=$HOST_CC ;;
-esac ; set_cc_for_build= ;'
-
-# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
-# (ghazi@noc.rutgers.edu 1994-08-24)
-if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
- PATH=$PATH:/.attbin ; export PATH
-fi
-
-UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
-UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
-UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
-
-# Note: order is significant - the case branches are not exclusive.
-
-case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
- *:NetBSD:*:*)
- # NetBSD (nbsd) targets should (where applicable) match one or
- # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
- # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
- # switched to ELF, *-*-netbsd* would select the old
- # object file format. This provides both forward
- # compatibility and a consistent mechanism for selecting the
- # object file format.
- #
- # Note: NetBSD doesn't particularly care about the vendor
- # portion of the name. We always set it to "unknown".
- sysctl="sysctl -n hw.machine_arch"
- UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
- /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
- case "${UNAME_MACHINE_ARCH}" in
- armeb) machine=armeb-unknown ;;
- arm*) machine=arm-unknown ;;
- sh3el) machine=shl-unknown ;;
- sh3eb) machine=sh-unknown ;;
- sh5el) machine=sh5le-unknown ;;
- *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
- esac
- # The Operating System including object format, if it has switched
- # to ELF recently, or will in the future.
- case "${UNAME_MACHINE_ARCH}" in
- arm*|i386|m68k|ns32k|sh3*|sparc|vax)
- eval $set_cc_for_build
- if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep __ELF__ >/dev/null
- then
- # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
- # Return netbsd for either. FIX?
- os=netbsd
- else
- os=netbsdelf
- fi
- ;;
- *)
- os=netbsd
- ;;
- esac
- # The OS release
- # Debian GNU/NetBSD machines have a different userland, and
- # thus, need a distinct triplet. However, they do not need
- # kernel version information, so it can be replaced with a
- # suitable tag, in the style of linux-gnu.
- case "${UNAME_VERSION}" in
- Debian*)
- release='-gnu'
- ;;
- *)
- release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
- ;;
- esac
- # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
- # contains redundant information, the shorter form:
- # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
- echo "${machine}-${os}${release}"
- exit ;;
- *:OpenBSD:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
- echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
- exit ;;
- *:ekkoBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
- exit ;;
- *:SolidBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
- exit ;;
- macppc:MirBSD:*:*)
- echo powerpc-unknown-mirbsd${UNAME_RELEASE}
- exit ;;
- *:MirBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
- exit ;;
- alpha:OSF1:*:*)
- case $UNAME_RELEASE in
- *4.0)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
- ;;
- *5.*)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
- ;;
- esac
- # According to Compaq, /usr/sbin/psrinfo has been available on
- # OSF/1 and Tru64 systems produced since 1995. I hope that
- # covers most systems running today. This code pipes the CPU
- # types through head -n 1, so we only detect the type of CPU 0.
- ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1`
- case "$ALPHA_CPU_TYPE" in
- "EV4 (21064)")
- UNAME_MACHINE="alpha" ;;
- "EV4.5 (21064)")
- UNAME_MACHINE="alpha" ;;
- "LCA4 (21066/21068)")
- UNAME_MACHINE="alpha" ;;
- "EV5 (21164)")
- UNAME_MACHINE="alphaev5" ;;
- "EV5.6 (21164A)")
- UNAME_MACHINE="alphaev56" ;;
- "EV5.6 (21164PC)")
- UNAME_MACHINE="alphapca56" ;;
- "EV5.7 (21164PC)")
- UNAME_MACHINE="alphapca57" ;;
- "EV6 (21264)")
- UNAME_MACHINE="alphaev6" ;;
- "EV6.7 (21264A)")
- UNAME_MACHINE="alphaev67" ;;
- "EV6.8CB (21264C)")
- UNAME_MACHINE="alphaev68" ;;
- "EV6.8AL (21264B)")
- UNAME_MACHINE="alphaev68" ;;
- "EV6.8CX (21264D)")
- UNAME_MACHINE="alphaev68" ;;
- "EV6.9A (21264/EV69A)")
- UNAME_MACHINE="alphaev69" ;;
- "EV7 (21364)")
- UNAME_MACHINE="alphaev7" ;;
- "EV7.9 (21364A)")
- UNAME_MACHINE="alphaev79" ;;
- esac
- # A Pn.n version is a patched version.
- # A Vn.n version is a released version.
- # A Tn.n version is a released field test version.
- # A Xn.n version is an unreleased experimental baselevel.
- # 1.2 uses "1.2" for uname -r.
- echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
- exit ;;
- Alpha\ *:Windows_NT*:*)
- # How do we know it's Interix rather than the generic POSIX subsystem?
- # Should we change UNAME_MACHINE based on the output of uname instead
- # of the specific Alpha model?
- echo alpha-pc-interix
- exit ;;
- 21064:Windows_NT:50:3)
- echo alpha-dec-winnt3.5
- exit ;;
- Amiga*:UNIX_System_V:4.0:*)
- echo m68k-unknown-sysv4
- exit ;;
- *:[Aa]miga[Oo][Ss]:*:*)
- echo ${UNAME_MACHINE}-unknown-amigaos
- exit ;;
- *:[Mm]orph[Oo][Ss]:*:*)
- echo ${UNAME_MACHINE}-unknown-morphos
- exit ;;
- *:OS/390:*:*)
- echo i370-ibm-openedition
- exit ;;
- *:z/VM:*:*)
- echo s390-ibm-zvmoe
- exit ;;
- *:OS400:*:*)
- echo powerpc-ibm-os400
- exit ;;
- arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
- echo arm-acorn-riscix${UNAME_RELEASE}
- exit ;;
- arm:riscos:*:*|arm:RISCOS:*:*)
- echo arm-unknown-riscos
- exit ;;
- SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
- echo hppa1.1-hitachi-hiuxmpp
- exit ;;
- Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
- # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
- if test "`(/bin/universe) 2>/dev/null`" = att ; then
- echo pyramid-pyramid-sysv3
- else
- echo pyramid-pyramid-bsd
- fi
- exit ;;
- NILE*:*:*:dcosx)
- echo pyramid-pyramid-svr4
- exit ;;
- DRS?6000:unix:4.0:6*)
- echo sparc-icl-nx6
- exit ;;
- DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
- case `/usr/bin/uname -p` in
- sparc) echo sparc-icl-nx7; exit ;;
- esac ;;
- sun4H:SunOS:5.*:*)
- echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
- echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
- echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4*:SunOS:6*:*)
- # According to config.sub, this is the proper way to canonicalize
- # SunOS6. Hard to guess exactly what SunOS6 will be like, but
- # it's likely to be more like Solaris than SunOS4.
- echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- sun4*:SunOS:*:*)
- case "`/usr/bin/arch -k`" in
- Series*|S4*)
- UNAME_RELEASE=`uname -v`
- ;;
- esac
- # Japanese Language versions have a version number like `4.1.3-JL'.
- echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
- exit ;;
- sun3*:SunOS:*:*)
- echo m68k-sun-sunos${UNAME_RELEASE}
- exit ;;
- sun*:*:4.2BSD:*)
- UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
- test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
- case "`/bin/arch`" in
- sun3)
- echo m68k-sun-sunos${UNAME_RELEASE}
- ;;
- sun4)
- echo sparc-sun-sunos${UNAME_RELEASE}
- ;;
- esac
- exit ;;
- aushp:SunOS:*:*)
- echo sparc-auspex-sunos${UNAME_RELEASE}
- exit ;;
- # The situation for MiNT is a little confusing. The machine name
- # can be virtually everything (everything which is not
- # "atarist" or "atariste" at least should have a processor
- # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
- # to the lowercase version "mint" (or "freemint"). Finally
- # the system name "TOS" denotes a system which is actually not
- # MiNT. But MiNT is downward compatible to TOS, so this should
- # be no problem.
- atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
- atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
- *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit ;;
- milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
- echo m68k-milan-mint${UNAME_RELEASE}
- exit ;;
- hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
- echo m68k-hades-mint${UNAME_RELEASE}
- exit ;;
- *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
- echo m68k-unknown-mint${UNAME_RELEASE}
- exit ;;
- m68k:machten:*:*)
- echo m68k-apple-machten${UNAME_RELEASE}
- exit ;;
- powerpc:machten:*:*)
- echo powerpc-apple-machten${UNAME_RELEASE}
- exit ;;
- RISC*:Mach:*:*)
- echo mips-dec-mach_bsd4.3
- exit ;;
- RISC*:ULTRIX:*:*)
- echo mips-dec-ultrix${UNAME_RELEASE}
- exit ;;
- VAX*:ULTRIX*:*:*)
- echo vax-dec-ultrix${UNAME_RELEASE}
- exit ;;
- 2020:CLIX:*:* | 2430:CLIX:*:*)
- echo clipper-intergraph-clix${UNAME_RELEASE}
- exit ;;
- mips:*:*:UMIPS | mips:*:*:RISCos)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
-#ifdef __cplusplus
-#include <stdio.h> /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
- #if defined (host_mips) && defined (MIPSEB)
- #if defined (SYSTYPE_SYSV)
- printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_SVR4)
- printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
- printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
- #endif
- #endif
- exit (-1);
- }
-EOF
- $CC_FOR_BUILD -o $dummy $dummy.c &&
- dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
- SYSTEM_NAME=`$dummy $dummyarg` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo mips-mips-riscos${UNAME_RELEASE}
- exit ;;
- Motorola:PowerMAX_OS:*:*)
- echo powerpc-motorola-powermax
- exit ;;
- Motorola:*:4.3:PL8-*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:Power_UNIX:*:*)
- echo powerpc-harris-powerunix
- exit ;;
- m88k:CX/UX:7*:*)
- echo m88k-harris-cxux7
- exit ;;
- m88k:*:4*:R4*)
- echo m88k-motorola-sysv4
- exit ;;
- m88k:*:3*:R3*)
- echo m88k-motorola-sysv3
- exit ;;
- AViiON:dgux:*:*)
- # DG/UX returns AViiON for all architectures
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
- then
- if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
- [ ${TARGET_BINARY_INTERFACE}x = x ]
- then
- echo m88k-dg-dgux${UNAME_RELEASE}
- else
- echo m88k-dg-dguxbcs${UNAME_RELEASE}
- fi
- else
- echo i586-dg-dgux${UNAME_RELEASE}
- fi
- exit ;;
- M88*:DolphinOS:*:*) # DolphinOS (SVR3)
- echo m88k-dolphin-sysv3
- exit ;;
- M88*:*:R3*:*)
- # Delta 88k system running SVR3
- echo m88k-motorola-sysv3
- exit ;;
- XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
- echo m88k-tektronix-sysv3
- exit ;;
- Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
- echo m68k-tektronix-bsd
- exit ;;
- *:IRIX*:*:*)
- echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
- exit ;;
- ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
- echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
- exit ;; # Note that: echo "'`uname -s`'" gives 'AIX '
- i*86:AIX:*:*)
- echo i386-ibm-aix
- exit ;;
- ia64:AIX:*:*)
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
- fi
- echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
- exit ;;
- *:AIX:2:3)
- if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #include <sys/systemcfg.h>
-
- main()
- {
- if (!__power_pc())
- exit(1);
- puts("powerpc-ibm-aix3.2.5");
- exit(0);
- }
-EOF
- if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
- then
- echo "$SYSTEM_NAME"
- else
- echo rs6000-ibm-aix3.2.5
- fi
- elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
- echo rs6000-ibm-aix3.2.4
- else
- echo rs6000-ibm-aix3.2
- fi
- exit ;;
- *:AIX:*:[456])
- IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
- if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
- IBM_ARCH=rs6000
- else
- IBM_ARCH=powerpc
- fi
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
- fi
- echo ${IBM_ARCH}-ibm-aix${IBM_REV}
- exit ;;
- *:AIX:*:*)
- echo rs6000-ibm-aix
- exit ;;
- ibmrt:4.4BSD:*|romp-ibm:BSD:*)
- echo romp-ibm-bsd4.4
- exit ;;
- ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
- echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to
- exit ;; # report: romp-ibm BSD 4.3
- *:BOSX:*:*)
- echo rs6000-bull-bosx
- exit ;;
- DPX/2?00:B.O.S.:*:*)
- echo m68k-bull-sysv3
- exit ;;
- 9000/[34]??:4.3bsd:1.*:*)
- echo m68k-hp-bsd
- exit ;;
- hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
- echo m68k-hp-bsd4.4
- exit ;;
- 9000/[34678]??:HP-UX:*:*)
- HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
- case "${UNAME_MACHINE}" in
- 9000/31? ) HP_ARCH=m68000 ;;
- 9000/[34]?? ) HP_ARCH=m68k ;;
- 9000/[678][0-9][0-9])
- if [ -x /usr/bin/getconf ]; then
- sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
- sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
- case "${sc_cpu_version}" in
- 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
- 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
- 532) # CPU_PA_RISC2_0
- case "${sc_kernel_bits}" in
- 32) HP_ARCH="hppa2.0n" ;;
- 64) HP_ARCH="hppa2.0w" ;;
- '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20
- esac ;;
- esac
- fi
- if [ "${HP_ARCH}" = "" ]; then
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
-
- #define _HPUX_SOURCE
- #include <stdlib.h>
- #include <unistd.h>
-
- int main ()
- {
- #if defined(_SC_KERNEL_BITS)
- long bits = sysconf(_SC_KERNEL_BITS);
- #endif
- long cpu = sysconf (_SC_CPU_VERSION);
-
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
- case CPU_PA_RISC2_0:
- #if defined(_SC_KERNEL_BITS)
- switch (bits)
- {
- case 64: puts ("hppa2.0w"); break;
- case 32: puts ("hppa2.0n"); break;
- default: puts ("hppa2.0"); break;
- } break;
- #else /* !defined(_SC_KERNEL_BITS) */
- puts ("hppa2.0"); break;
- #endif
- default: puts ("hppa1.0"); break;
- }
- exit (0);
- }
-EOF
- (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
- test -z "$HP_ARCH" && HP_ARCH=hppa
- fi ;;
- esac
- if [ ${HP_ARCH} = "hppa2.0w" ]
- then
- eval $set_cc_for_build
-
- # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
- # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler
- # generating 64-bit code. GNU and HP use different nomenclature:
- #
- # $ CC_FOR_BUILD=cc ./config.guess
- # => hppa2.0w-hp-hpux11.23
- # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
- # => hppa64-hp-hpux11.23
-
- if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
- grep __LP64__ >/dev/null
- then
- HP_ARCH="hppa2.0w"
- else
- HP_ARCH="hppa64"
- fi
- fi
- echo ${HP_ARCH}-hp-hpux${HPUX_REV}
- exit ;;
- ia64:HP-UX:*:*)
- HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
- echo ia64-hp-hpux${HPUX_REV}
- exit ;;
- 3050*:HI-UX:*:*)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #include <unistd.h>
- int
- main ()
- {
- long cpu = sysconf (_SC_CPU_VERSION);
- /* The order matters, because CPU_IS_HP_MC68K erroneously returns
- true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
- results, however. */
- if (CPU_IS_PA_RISC (cpu))
- {
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
- default: puts ("hppa-hitachi-hiuxwe2"); break;
- }
- }
- else if (CPU_IS_HP_MC68K (cpu))
- puts ("m68k-hitachi-hiuxwe2");
- else puts ("unknown-hitachi-hiuxwe2");
- exit (0);
- }
-EOF
- $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo unknown-hitachi-hiuxwe2
- exit ;;
- 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
- echo hppa1.1-hp-bsd
- exit ;;
- 9000/8??:4.3bsd:*:*)
- echo hppa1.0-hp-bsd
- exit ;;
- *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
- echo hppa1.0-hp-mpeix
- exit ;;
- hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
- echo hppa1.1-hp-osf
- exit ;;
- hp8??:OSF1:*:*)
- echo hppa1.0-hp-osf
- exit ;;
- i*86:OSF1:*:*)
- if [ -x /usr/sbin/sysversion ] ; then
- echo ${UNAME_MACHINE}-unknown-osf1mk
- else
- echo ${UNAME_MACHINE}-unknown-osf1
- fi
- exit ;;
- parisc*:Lites*:*:*)
- echo hppa1.1-hp-lites
- exit ;;
- C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
- echo c1-convex-bsd
- exit ;;
- C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
- echo c34-convex-bsd
- exit ;;
- C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
- echo c38-convex-bsd
- exit ;;
- C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
- echo c4-convex-bsd
- exit ;;
- CRAY*Y-MP:*:*:*)
- echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*[A-Z]90:*:*:*)
- echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
- | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
- -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
- -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*TS:*:*:*)
- echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*T3E:*:*:*)
- echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*SV1:*:*:*)
- echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- *:UNICOS/mp:*:*)
- echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
- FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
- FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
- echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- 5000:UNIX_System_V:4.*:*)
- FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
- echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
- echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
- exit ;;
- sparc*:BSD/OS:*:*)
- echo sparc-unknown-bsdi${UNAME_RELEASE}
- exit ;;
- *:BSD/OS:*:*)
- echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
- exit ;;
- *:FreeBSD:*:*)
- case ${UNAME_MACHINE} in
- pc98)
- echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
- amd64)
- echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
- *)
- echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
- esac
- exit ;;
- i*:CYGWIN*:*)
- echo ${UNAME_MACHINE}-pc-cygwin
- exit ;;
- *:MINGW*:*)
- echo ${UNAME_MACHINE}-pc-mingw32
- exit ;;
- i*:windows32*:*)
- # uname -m includes "-pc" on this system.
- echo ${UNAME_MACHINE}-mingw32
- exit ;;
- i*:PW*:*)
- echo ${UNAME_MACHINE}-pc-pw32
- exit ;;
- *:Interix*:[3456]*)
- case ${UNAME_MACHINE} in
- x86)
- echo i586-pc-interix${UNAME_RELEASE}
- exit ;;
- EM64T | authenticamd)
- echo x86_64-unknown-interix${UNAME_RELEASE}
- exit ;;
- IA64)
- echo ia64-unknown-interix${UNAME_RELEASE}
- exit ;;
- esac ;;
- [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
- echo i${UNAME_MACHINE}-pc-mks
- exit ;;
- i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
- # How do we know it's Interix rather than the generic POSIX subsystem?
- # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
- # UNAME_MACHINE based on the output of uname instead of i386?
- echo i586-pc-interix
- exit ;;
- i*:UWIN*:*)
- echo ${UNAME_MACHINE}-pc-uwin
- exit ;;
- amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
- echo x86_64-unknown-cygwin
- exit ;;
- p*:CYGWIN*:*)
- echo powerpcle-unknown-cygwin
- exit ;;
- prep*:SunOS:5.*:*)
- echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit ;;
- *:GNU:*:*)
- # the GNU system
- echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
- exit ;;
- *:GNU/*:*:*)
- # other systems with GNU libc and userland
- echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
- exit ;;
- i*86:Minix:*:*)
- echo ${UNAME_MACHINE}-pc-minix
- exit ;;
- arm*:Linux:*:*)
- eval $set_cc_for_build
- if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ARM_EABI__
- then
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- else
- echo ${UNAME_MACHINE}-unknown-linux-gnueabi
- fi
- exit ;;
- avr32*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- cris:Linux:*:*)
- echo cris-axis-linux-gnu
- exit ;;
- crisv32:Linux:*:*)
- echo crisv32-axis-linux-gnu
- exit ;;
- frv:Linux:*:*)
- echo frv-unknown-linux-gnu
- exit ;;
- ia64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- m32r*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- m68*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- mips:Linux:*:*)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #undef CPU
- #undef mips
- #undef mipsel
- #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
- CPU=mipsel
- #else
- #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
- CPU=mips
- #else
- CPU=
- #endif
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
- /^CPU/{
- s: ::g
- p
- }'`"
- test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
- ;;
- mips64:Linux:*:*)
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #undef CPU
- #undef mips64
- #undef mips64el
- #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
- CPU=mips64el
- #else
- #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
- CPU=mips64
- #else
- CPU=
- #endif
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
- /^CPU/{
- s: ::g
- p
- }'`"
- test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
- ;;
- or32:Linux:*:*)
- echo or32-unknown-linux-gnu
- exit ;;
- ppc:Linux:*:*)
- echo powerpc-unknown-linux-gnu
- exit ;;
- ppc64:Linux:*:*)
- echo powerpc64-unknown-linux-gnu
- exit ;;
- alpha:Linux:*:*)
- case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
- EV5) UNAME_MACHINE=alphaev5 ;;
- EV56) UNAME_MACHINE=alphaev56 ;;
- PCA56) UNAME_MACHINE=alphapca56 ;;
- PCA57) UNAME_MACHINE=alphapca56 ;;
- EV6) UNAME_MACHINE=alphaev6 ;;
- EV67) UNAME_MACHINE=alphaev67 ;;
- EV68*) UNAME_MACHINE=alphaev68 ;;
- esac
- objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
- if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
- echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
- exit ;;
- parisc:Linux:*:* | hppa:Linux:*:*)
- # Look for CPU level
- case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
- PA7*) echo hppa1.1-unknown-linux-gnu ;;
- PA8*) echo hppa2.0-unknown-linux-gnu ;;
- *) echo hppa-unknown-linux-gnu ;;
- esac
- exit ;;
- parisc64:Linux:*:* | hppa64:Linux:*:*)
- echo hppa64-unknown-linux-gnu
- exit ;;
- s390:Linux:*:* | s390x:Linux:*:*)
- echo ${UNAME_MACHINE}-ibm-linux
- exit ;;
- sh64*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- sh*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- sparc:Linux:*:* | sparc64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- vax:Linux:*:*)
- echo ${UNAME_MACHINE}-dec-linux-gnu
- exit ;;
- x86_64:Linux:*:*)
- echo x86_64-unknown-linux-gnu
- exit ;;
- xtensa*:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-gnu
- exit ;;
- i*86:Linux:*:*)
- # The BFD linker knows what the default object file format is, so
- # first see if it will tell us. cd to the root directory to prevent
- # problems with other programs or directories called `ld' in the path.
- # Set LC_ALL=C to ensure ld outputs messages in English.
- ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
- | sed -ne '/supported targets:/!d
- s/[ ][ ]*/ /g
- s/.*supported targets: *//
- s/ .*//
- p'`
- case "$ld_supported_targets" in
- elf32-i386)
- TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
- ;;
- a.out-i386-linux)
- echo "${UNAME_MACHINE}-pc-linux-gnuaout"
- exit ;;
- coff-i386)
- echo "${UNAME_MACHINE}-pc-linux-gnucoff"
- exit ;;
- "")
- # Either a pre-BFD a.out linker (linux-gnuoldld) or
- # one that does not give us useful --help.
- echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
- exit ;;
- esac
- # Determine whether the default compiler is a.out or elf
- eval $set_cc_for_build
- sed 's/^ //' << EOF >$dummy.c
- #include <features.h>
- #ifdef __ELF__
- # ifdef __GLIBC__
- # if __GLIBC__ >= 2
- LIBC=gnu
- # else
- LIBC=gnulibc1
- # endif
- # else
- LIBC=gnulibc1
- # endif
- #else
- #if defined(__INTEL_COMPILER) || defined(__PGI) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
- LIBC=gnu
- #else
- LIBC=gnuaout
- #endif
- #endif
- #ifdef __dietlibc__
- LIBC=dietlibc
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n '
- /^LIBC/{
- s: ::g
- p
- }'`"
- test x"${LIBC}" != x && {
- echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
- exit
- }
- test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
- ;;
- i*86:DYNIX/ptx:4*:*)
- # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
- # earlier versions are messed up and put the nodename in both
- # sysname and nodename.
- echo i386-sequent-sysv4
- exit ;;
- i*86:UNIX_SV:4.2MP:2.*)
- # Unixware is an offshoot of SVR4, but it has its own version
- # number series starting with 2...
- # I am not positive that other SVR4 systems won't match this,
- # I just have to hope. -- rms.
- # Use sysv4.2uw... so that sysv4* matches it.
- echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
- exit ;;
- i*86:OS/2:*:*)
- # If we were able to find `uname', then EMX Unix compatibility
- # is probably installed.
- echo ${UNAME_MACHINE}-pc-os2-emx
- exit ;;
- i*86:XTS-300:*:STOP)
- echo ${UNAME_MACHINE}-unknown-stop
- exit ;;
- i*86:atheos:*:*)
- echo ${UNAME_MACHINE}-unknown-atheos
- exit ;;
- i*86:syllable:*:*)
- echo ${UNAME_MACHINE}-pc-syllable
- exit ;;
- i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
- echo i386-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- i*86:*DOS:*:*)
- echo ${UNAME_MACHINE}-pc-msdosdjgpp
- exit ;;
- i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
- UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
- if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
- echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
- else
- echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
- fi
- exit ;;
- i*86:*:5:[678]*)
- # UnixWare 7.x, OpenUNIX and OpenServer 6.
- case `/bin/uname -X | grep "^Machine"` in
- *486*) UNAME_MACHINE=i486 ;;
- *Pentium) UNAME_MACHINE=i586 ;;
- *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
- esac
- echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
- exit ;;
- i*86:*:3.2:*)
- if test -f /usr/options/cb.name; then
- UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
- echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
- elif /bin/uname -X 2>/dev/null >/dev/null ; then
- UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
- (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
- (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
- && UNAME_MACHINE=i586
- (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
- && UNAME_MACHINE=i686
- (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
- && UNAME_MACHINE=i686
- echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
- else
- echo ${UNAME_MACHINE}-pc-sysv32
- fi
- exit ;;
- pc:*:*:*)
- # Left here for compatibility:
- # uname -m prints for DJGPP always 'pc', but it prints nothing about
- # the processor, so we play safe by assuming i386.
- echo i386-pc-msdosdjgpp
- exit ;;
- Intel:Mach:3*:*)
- echo i386-pc-mach3
- exit ;;
- paragon:*:*:*)
- echo i860-intel-osf1
- exit ;;
- i860:*:4.*:*) # i860-SVR4
- if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
- echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
- else # Add other i860-SVR4 vendors below as they are discovered.
- echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4
- fi
- exit ;;
- mini*:CTIX:SYS*5:*)
- # "miniframe"
- echo m68010-convergent-sysv
- exit ;;
- mc68k:UNIX:SYSTEM5:3.51m)
- echo m68k-convergent-sysv
- exit ;;
- M680?0:D-NIX:5.3:*)
- echo m68k-diab-dnix
- exit ;;
- M68*:*:R3V[5678]*:*)
- test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
- 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
- OS_REL=''
- test -r /etc/.relid \
- && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
- /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
- && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
- 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && { echo i486-ncr-sysv4; exit; } ;;
- m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
- echo m68k-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- mc68030:UNIX_System_V:4.*:*)
- echo m68k-atari-sysv4
- exit ;;
- TSUNAMI:LynxOS:2.*:*)
- echo sparc-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- rs6000:LynxOS:2.*:*)
- echo rs6000-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
- echo powerpc-unknown-lynxos${UNAME_RELEASE}
- exit ;;
- SM[BE]S:UNIX_SV:*:*)
- echo mips-dde-sysv${UNAME_RELEASE}
- exit ;;
- RM*:ReliantUNIX-*:*:*)
- echo mips-sni-sysv4
- exit ;;
- RM*:SINIX-*:*:*)
- echo mips-sni-sysv4
- exit ;;
- *:SINIX-*:*:*)
- if uname -p 2>/dev/null >/dev/null ; then
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- echo ${UNAME_MACHINE}-sni-sysv4
- else
- echo ns32k-sni-sysv
- fi
- exit ;;
- PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
- # says <Richard.M.Bartel@ccMail.Census.GOV>
- echo i586-unisys-sysv4
- exit ;;
- *:UNIX_System_V:4*:FTX*)
- # From Gerald Hewes <hewes@openmarket.com>.
- # How about differentiating between stratus architectures? -djm
- echo hppa1.1-stratus-sysv4
- exit ;;
- *:*:*:FTX*)
- # From seanf@swdc.stratus.com.
- echo i860-stratus-sysv4
- exit ;;
- i*86:VOS:*:*)
- # From Paul.Green@stratus.com.
- echo ${UNAME_MACHINE}-stratus-vos
- exit ;;
- *:VOS:*:*)
- # From Paul.Green@stratus.com.
- echo hppa1.1-stratus-vos
- exit ;;
- mc68*:A/UX:*:*)
- echo m68k-apple-aux${UNAME_RELEASE}
- exit ;;
- news*:NEWS-OS:6*:*)
- echo mips-sony-newsos6
- exit ;;
- R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
- if [ -d /usr/nec ]; then
- echo mips-nec-sysv${UNAME_RELEASE}
- else
- echo mips-unknown-sysv${UNAME_RELEASE}
- fi
- exit ;;
- BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
- echo powerpc-be-beos
- exit ;;
- BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only.
- echo powerpc-apple-beos
- exit ;;
- BePC:BeOS:*:*) # BeOS running on Intel PC compatible.
- echo i586-pc-beos
- exit ;;
- SX-4:SUPER-UX:*:*)
- echo sx4-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-5:SUPER-UX:*:*)
- echo sx5-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-6:SUPER-UX:*:*)
- echo sx6-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-7:SUPER-UX:*:*)
- echo sx7-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-8:SUPER-UX:*:*)
- echo sx8-nec-superux${UNAME_RELEASE}
- exit ;;
- SX-8R:SUPER-UX:*:*)
- echo sx8r-nec-superux${UNAME_RELEASE}
- exit ;;
- Power*:Rhapsody:*:*)
- echo powerpc-apple-rhapsody${UNAME_RELEASE}
- exit ;;
- *:Rhapsody:*:*)
- echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
- exit ;;
- *:Darwin:*:*)
- UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
- case $UNAME_PROCESSOR in
- unknown) UNAME_PROCESSOR=powerpc ;;
- esac
- echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
- exit ;;
- *:procnto*:*:* | *:QNX:[0123456789]*:*)
- UNAME_PROCESSOR=`uname -p`
- if test "$UNAME_PROCESSOR" = "x86"; then
- UNAME_PROCESSOR=i386
- UNAME_MACHINE=pc
- fi
- echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
- exit ;;
- *:QNX:*:4*)
- echo i386-pc-qnx
- exit ;;
- NSE-?:NONSTOP_KERNEL:*:*)
- echo nse-tandem-nsk${UNAME_RELEASE}
- exit ;;
- NSR-?:NONSTOP_KERNEL:*:*)
- echo nsr-tandem-nsk${UNAME_RELEASE}
- exit ;;
- *:NonStop-UX:*:*)
- echo mips-compaq-nonstopux
- exit ;;
- BS2000:POSIX*:*:*)
- echo bs2000-siemens-sysv
- exit ;;
- DS/*:UNIX_System_V:*:*)
- echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
- exit ;;
- *:Plan9:*:*)
- # "uname -m" is not consistent, so use $cputype instead. 386
- # is converted to i386 for consistency with other x86
- # operating systems.
- if test "$cputype" = "386"; then
- UNAME_MACHINE=i386
- else
- UNAME_MACHINE="$cputype"
- fi
- echo ${UNAME_MACHINE}-unknown-plan9
- exit ;;
- *:TOPS-10:*:*)
- echo pdp10-unknown-tops10
- exit ;;
- *:TENEX:*:*)
- echo pdp10-unknown-tenex
- exit ;;
- KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
- echo pdp10-dec-tops20
- exit ;;
- XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
- echo pdp10-xkl-tops20
- exit ;;
- *:TOPS-20:*:*)
- echo pdp10-unknown-tops20
- exit ;;
- *:ITS:*:*)
- echo pdp10-unknown-its
- exit ;;
- SEI:*:*:SEIUX)
- echo mips-sei-seiux${UNAME_RELEASE}
- exit ;;
- *:DragonFly:*:*)
- echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
- exit ;;
- *:*VMS:*:*)
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- case "${UNAME_MACHINE}" in
- A*) echo alpha-dec-vms ; exit ;;
- I*) echo ia64-dec-vms ; exit ;;
- V*) echo vax-dec-vms ; exit ;;
- esac ;;
- *:XENIX:*:SysV)
- echo i386-pc-xenix
- exit ;;
- i*86:skyos:*:*)
- echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
- exit ;;
- i*86:rdos:*:*)
- echo ${UNAME_MACHINE}-pc-rdos
- exit ;;
-esac
-
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
- /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed,
- I don't know.... */
- printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
- printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
- "4"
-#else
- ""
-#endif
- ); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
- printf ("arm-acorn-riscix\n"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
- printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
- int version;
- version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
- if (version < 4)
- printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
- else
- printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
- exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
- printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
- printf ("ns32k-encore-mach\n"); exit (0);
-#else
- printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
- printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
- printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
- printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
- struct utsname un;
-
- uname(&un);
-
- if (strncmp(un.version, "V2", 2) == 0) {
- printf ("i386-sequent-ptx2\n"); exit (0);
- }
- if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
- printf ("i386-sequent-ptx1\n"); exit (0);
- }
- printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-# include <sys/param.h>
-# if defined (BSD)
-# if BSD == 43
- printf ("vax-dec-bsd4.3\n"); exit (0);
-# else
-# if BSD == 199006
- printf ("vax-dec-bsd4.3reno\n"); exit (0);
-# else
- printf ("vax-dec-bsd\n"); exit (0);
-# endif
-# endif
-# else
- printf ("vax-dec-bsd\n"); exit (0);
-# endif
-# else
- printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
- printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
- exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
- { echo "$SYSTEM_NAME"; exit; }
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
- case `getsysinfo -f cpu_type` in
- c1*)
- echo c1-convex-bsd
- exit ;;
- c2*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- c34*)
- echo c34-convex-bsd
- exit ;;
- c38*)
- echo c38-convex-bsd
- exit ;;
- c4*)
- echo c4-convex-bsd
- exit ;;
- esac
-fi
-
-cat >&2 <<EOF
-$0: unable to guess system type
-
-This script, last modified $timestamp, has failed to recognize
-the operating system you are using. It is advised that you
-download the most up to date version of the config scripts from
-
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
-and
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
-
-If the version you run ($0) is already up to date, please
-send the following data and any information you think might be
-pertinent to <config-patches@gnu.org> in order to provide the needed
-information to handle your system.
-
-config.guess timestamp = $timestamp
-
-uname -m = `(uname -m) 2>/dev/null || echo unknown`
-uname -r = `(uname -r) 2>/dev/null || echo unknown`
-uname -s = `(uname -s) 2>/dev/null || echo unknown`
-uname -v = `(uname -v) 2>/dev/null || echo unknown`
-
-/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
-/bin/uname -X = `(/bin/uname -X) 2>/dev/null`
-
-hostinfo = `(hostinfo) 2>/dev/null`
-/bin/universe = `(/bin/universe) 2>/dev/null`
-/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null`
-/bin/arch = `(/bin/arch) 2>/dev/null`
-/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null`
-/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
-
-UNAME_MACHINE = ${UNAME_MACHINE}
-UNAME_RELEASE = ${UNAME_RELEASE}
-UNAME_SYSTEM = ${UNAME_SYSTEM}
-UNAME_VERSION = ${UNAME_VERSION}
-EOF
-
-exit 1
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "timestamp='"
-# time-stamp-format: "%:y-%02m-%02d"
-# time-stamp-end: "'"
-# End:
+++ /dev/null
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-#undef HAVE_CLOCK_GETTIME
-
-/* "use syscall interface for clock_gettime" */
-#undef HAVE_CLOCK_SYSCALL
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#undef HAVE_DLFCN_H
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-#undef HAVE_EPOLL_CTL
-
-/* Define to 1 if you have the `eventfd' function. */
-#undef HAVE_EVENTFD
-
-/* Define to 1 if you have the `inotify_init' function. */
-#undef HAVE_INOTIFY_INIT
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* Define to 1 if you have the `kqueue' function. */
-#undef HAVE_KQUEUE
-
-/* Define to 1 if you have the `m' library (-lm). */
-#undef HAVE_LIBM
-
-/* Define to 1 if you have the `rt' library (-lrt). */
-#undef HAVE_LIBRT
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the `nanosleep' function. */
-#undef HAVE_NANOSLEEP
-
-/* Define to 1 if you have the `poll' function. */
-#undef HAVE_POLL
-
-/* Define to 1 if you have the <poll.h> header file. */
-#undef HAVE_POLL_H
-
-/* Define to 1 if you have the `port_create' function. */
-#undef HAVE_PORT_CREATE
-
-/* Define to 1 if you have the <port.h> header file. */
-#undef HAVE_PORT_H
-
-/* Define to 1 if you have the `select' function. */
-#undef HAVE_SELECT
-
-/* Define to 1 if you have the `signalfd' function. */
-#undef HAVE_SIGNALFD
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the <sys/epoll.h> header file. */
-#undef HAVE_SYS_EPOLL_H
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-#undef HAVE_SYS_EVENTFD_H
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-#undef HAVE_SYS_EVENT_H
-
-/* Define to 1 if you have the <sys/inotify.h> header file. */
-#undef HAVE_SYS_INOTIFY_H
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#undef HAVE_SYS_SELECT_H
-
-/* Define to 1 if you have the <sys/signalfd.h> header file. */
-#undef HAVE_SYS_SIGNALFD_H
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#undef LT_OBJDIR
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Version number of package */
-#undef VERSION
+++ /dev/null
-#! /bin/sh
-# Configuration validation subroutine script.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-# Free Software Foundation, Inc.
-
-timestamp='2008-01-16'
-
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine. It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
-# 02110-1301, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-
-# Please send patches to <config-patches@gnu.org>. Submit a context
-# diff and a properly formatted ChangeLog entry.
-#
-# Configuration subroutine to validate and canonicalize a configuration type.
-# Supply the specified configuration type as an argument.
-# If it is invalid, we print an error message on stderr and exit with code 1.
-# Otherwise, we print the canonical config type on stdout and succeed.
-
-# This file is supposed to be the same for all GNU packages
-# and recognize all the CPU types, system types and aliases
-# that are meaningful with *any* GNU software.
-# Each package is responsible for reporting which valid configurations
-# it does not support. The user should be able to distinguish
-# a failure to support a valid configuration from a meaningless
-# configuration.
-
-# The goal of this file is to map all the various variations of a given
-# machine specification into a single specification in the form:
-# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
-# or in some cases, the newer four-part form:
-# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
-# It is wrong to echo any other type of specification.
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION] CPU-MFR-OPSYS
- $0 [OPTION] ALIAS
-
-Canonicalize a configuration name.
-
-Operation modes:
- -h, --help print this help, then exit
- -t, --time-stamp print date of last modification, then exit
- -v, --version print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.sub ($timestamp)
-
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
- case $1 in
- --time-stamp | --time* | -t )
- echo "$timestamp" ; exit ;;
- --version | -v )
- echo "$version" ; exit ;;
- --help | --h* | -h )
- echo "$usage"; exit ;;
- -- ) # Stop option processing
- shift; break ;;
- - ) # Use stdin as input.
- break ;;
- -* )
- echo "$me: invalid option $1$help"
- exit 1 ;;
-
- *local*)
- # First pass through any local machine types.
- echo $1
- exit ;;
-
- * )
- break ;;
- esac
-done
-
-case $# in
- 0) echo "$me: missing argument$help" >&2
- exit 1;;
- 1) ;;
- *) echo "$me: too many arguments$help" >&2
- exit 1;;
-esac
-
-# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
-# Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
-case $maybe_os in
- nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
- uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
- storm-chaos* | os2-emx* | rtmk-nova*)
- os=-$maybe_os
- basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
- ;;
- *)
- basic_machine=`echo $1 | sed 's/-[^-]*$//'`
- if [ $basic_machine != $1 ]
- then os=`echo $1 | sed 's/.*-/-/'`
- else os=; fi
- ;;
-esac
-
-### Let's recognize common machines as not being operating systems so
-### that things like config.sub decstation-3100 work. We also
-### recognize some manufacturers as not being operating systems, so we
-### can provide default operating systems below.
-case $os in
- -sun*os*)
- # Prevent following clause from handling this invalid input.
- ;;
- -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
- -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
- -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
- -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
- -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
- -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
- -apple | -axis | -knuth | -cray)
- os=
- basic_machine=$1
- ;;
- -sim | -cisco | -oki | -wec | -winbond)
- os=
- basic_machine=$1
- ;;
- -scout)
- ;;
- -wrs)
- os=-vxworks
- basic_machine=$1
- ;;
- -chorusos*)
- os=-chorusos
- basic_machine=$1
- ;;
- -chorusrdb)
- os=-chorusrdb
- basic_machine=$1
- ;;
- -hiux*)
- os=-hiuxwe2
- ;;
- -sco6)
- os=-sco5v6
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco5)
- os=-sco3.2v5
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco4)
- os=-sco3.2v4
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2.[4-9]*)
- os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2v[4-9]*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco5v6*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco*)
- os=-sco3.2v2
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -udk*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -isc)
- os=-isc2.2
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -clix*)
- basic_machine=clipper-intergraph
- ;;
- -isc*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -lynx*)
- os=-lynxos
- ;;
- -ptx*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
- ;;
- -windowsnt*)
- os=`echo $os | sed -e 's/windowsnt/winnt/'`
- ;;
- -psos*)
- os=-psos
- ;;
- -mint | -mint[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
-esac
-
-# Decode aliases for certain CPU-COMPANY combinations.
-case $basic_machine in
- # Recognize the basic CPU types without company name.
- # Some are omitted here because they have special meanings below.
- 1750a | 580 \
- | a29k \
- | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
- | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
- | am33_2.0 \
- | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
- | bfin \
- | c4x | clipper \
- | d10v | d30v | dlx | dsp16xx \
- | fido | fr30 | frv \
- | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
- | i370 | i860 | i960 | ia64 \
- | ip2k | iq2000 \
- | m32c | m32r | m32rle | m68000 | m68k | m88k \
- | maxq | mb | microblaze | mcore | mep \
- | mips | mipsbe | mipseb | mipsel | mipsle \
- | mips16 \
- | mips64 | mips64el \
- | mips64vr | mips64vrel \
- | mips64orion | mips64orionel \
- | mips64vr4100 | mips64vr4100el \
- | mips64vr4300 | mips64vr4300el \
- | mips64vr5000 | mips64vr5000el \
- | mips64vr5900 | mips64vr5900el \
- | mipsisa32 | mipsisa32el \
- | mipsisa32r2 | mipsisa32r2el \
- | mipsisa64 | mipsisa64el \
- | mipsisa64r2 | mipsisa64r2el \
- | mipsisa64sb1 | mipsisa64sb1el \
- | mipsisa64sr71k | mipsisa64sr71kel \
- | mipstx39 | mipstx39el \
- | mn10200 | mn10300 \
- | mt \
- | msp430 \
- | nios | nios2 \
- | ns16k | ns32k \
- | or32 \
- | pdp10 | pdp11 | pj | pjl \
- | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
- | pyramid \
- | score \
- | sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
- | sh64 | sh64le \
- | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
- | sparcv8 | sparcv9 | sparcv9b | sparcv9v \
- | spu | strongarm \
- | tahoe | thumb | tic4x | tic80 | tron \
- | v850 | v850e \
- | we32k \
- | x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
- | z8k)
- basic_machine=$basic_machine-unknown
- ;;
- m6811 | m68hc11 | m6812 | m68hc12)
- # Motorola 68HC11/12.
- basic_machine=$basic_machine-unknown
- os=-none
- ;;
- m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
- ;;
- ms1)
- basic_machine=mt-unknown
- ;;
-
- # We use `pc' rather than `unknown'
- # because (1) that's what they normally are, and
- # (2) the word "unknown" tends to confuse beginning users.
- i*86 | x86_64)
- basic_machine=$basic_machine-pc
- ;;
- # Object if more than one company name word.
- *-*-*)
- echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
- exit 1
- ;;
- # Recognize the basic CPU types with company name.
- 580-* \
- | a29k-* \
- | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
- | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
- | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
- | arm-* | armbe-* | armle-* | armeb-* | armv*-* \
- | avr-* | avr32-* \
- | bfin-* | bs2000-* \
- | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
- | clipper-* | craynv-* | cydra-* \
- | d10v-* | d30v-* | dlx-* \
- | elxsi-* \
- | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
- | h8300-* | h8500-* \
- | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
- | i*86-* | i860-* | i960-* | ia64-* \
- | ip2k-* | iq2000-* \
- | m32c-* | m32r-* | m32rle-* \
- | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
- | m88110-* | m88k-* | maxq-* | mcore-* \
- | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
- | mips16-* \
- | mips64-* | mips64el-* \
- | mips64vr-* | mips64vrel-* \
- | mips64orion-* | mips64orionel-* \
- | mips64vr4100-* | mips64vr4100el-* \
- | mips64vr4300-* | mips64vr4300el-* \
- | mips64vr5000-* | mips64vr5000el-* \
- | mips64vr5900-* | mips64vr5900el-* \
- | mipsisa32-* | mipsisa32el-* \
- | mipsisa32r2-* | mipsisa32r2el-* \
- | mipsisa64-* | mipsisa64el-* \
- | mipsisa64r2-* | mipsisa64r2el-* \
- | mipsisa64sb1-* | mipsisa64sb1el-* \
- | mipsisa64sr71k-* | mipsisa64sr71kel-* \
- | mipstx39-* | mipstx39el-* \
- | mmix-* \
- | mt-* \
- | msp430-* \
- | nios-* | nios2-* \
- | none-* | np1-* | ns16k-* | ns32k-* \
- | orion-* \
- | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
- | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
- | pyramid-* \
- | romp-* | rs6000-* \
- | sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
- | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
- | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
- | sparclite-* \
- | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
- | tahoe-* | thumb-* \
- | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
- | tron-* \
- | v850-* | v850e-* | vax-* \
- | we32k-* \
- | x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
- | xstormy16-* | xtensa*-* \
- | ymp-* \
- | z8k-*)
- ;;
- # Recognize the basic CPU types without company name, with glob match.
- xtensa*)
- basic_machine=$basic_machine-unknown
- ;;
- # Recognize the various machine names and aliases which stand
- # for a CPU type and a company and sometimes even an OS.
- 386bsd)
- basic_machine=i386-unknown
- os=-bsd
- ;;
- 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
- basic_machine=m68000-att
- ;;
- 3b*)
- basic_machine=we32k-att
- ;;
- a29khif)
- basic_machine=a29k-amd
- os=-udi
- ;;
- abacus)
- basic_machine=abacus-unknown
- ;;
- adobe68k)
- basic_machine=m68010-adobe
- os=-scout
- ;;
- alliant | fx80)
- basic_machine=fx80-alliant
- ;;
- altos | altos3068)
- basic_machine=m68k-altos
- ;;
- am29k)
- basic_machine=a29k-none
- os=-bsd
- ;;
- amd64)
- basic_machine=x86_64-pc
- ;;
- amd64-*)
- basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- amdahl)
- basic_machine=580-amdahl
- os=-sysv
- ;;
- amiga | amiga-*)
- basic_machine=m68k-unknown
- ;;
- amigaos | amigados)
- basic_machine=m68k-unknown
- os=-amigaos
- ;;
- amigaunix | amix)
- basic_machine=m68k-unknown
- os=-sysv4
- ;;
- apollo68)
- basic_machine=m68k-apollo
- os=-sysv
- ;;
- apollo68bsd)
- basic_machine=m68k-apollo
- os=-bsd
- ;;
- aux)
- basic_machine=m68k-apple
- os=-aux
- ;;
- balance)
- basic_machine=ns32k-sequent
- os=-dynix
- ;;
- blackfin)
- basic_machine=bfin-unknown
- os=-linux
- ;;
- blackfin-*)
- basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- c90)
- basic_machine=c90-cray
- os=-unicos
- ;;
- convex-c1)
- basic_machine=c1-convex
- os=-bsd
- ;;
- convex-c2)
- basic_machine=c2-convex
- os=-bsd
- ;;
- convex-c32)
- basic_machine=c32-convex
- os=-bsd
- ;;
- convex-c34)
- basic_machine=c34-convex
- os=-bsd
- ;;
- convex-c38)
- basic_machine=c38-convex
- os=-bsd
- ;;
- cray | j90)
- basic_machine=j90-cray
- os=-unicos
- ;;
- craynv)
- basic_machine=craynv-cray
- os=-unicosmp
- ;;
- cr16)
- basic_machine=cr16-unknown
- os=-elf
- ;;
- crds | unos)
- basic_machine=m68k-crds
- ;;
- crisv32 | crisv32-* | etraxfs*)
- basic_machine=crisv32-axis
- ;;
- cris | cris-* | etrax*)
- basic_machine=cris-axis
- ;;
- crx)
- basic_machine=crx-unknown
- os=-elf
- ;;
- da30 | da30-*)
- basic_machine=m68k-da30
- ;;
- decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
- basic_machine=mips-dec
- ;;
- decsystem10* | dec10*)
- basic_machine=pdp10-dec
- os=-tops10
- ;;
- decsystem20* | dec20*)
- basic_machine=pdp10-dec
- os=-tops20
- ;;
- delta | 3300 | motorola-3300 | motorola-delta \
- | 3300-motorola | delta-motorola)
- basic_machine=m68k-motorola
- ;;
- delta88)
- basic_machine=m88k-motorola
- os=-sysv3
- ;;
- djgpp)
- basic_machine=i586-pc
- os=-msdosdjgpp
- ;;
- dpx20 | dpx20-*)
- basic_machine=rs6000-bull
- os=-bosx
- ;;
- dpx2* | dpx2*-bull)
- basic_machine=m68k-bull
- os=-sysv3
- ;;
- ebmon29k)
- basic_machine=a29k-amd
- os=-ebmon
- ;;
- elxsi)
- basic_machine=elxsi-elxsi
- os=-bsd
- ;;
- encore | umax | mmax)
- basic_machine=ns32k-encore
- ;;
- es1800 | OSE68k | ose68k | ose | OSE)
- basic_machine=m68k-ericsson
- os=-ose
- ;;
- fx2800)
- basic_machine=i860-alliant
- ;;
- genix)
- basic_machine=ns32k-ns
- ;;
- gmicro)
- basic_machine=tron-gmicro
- os=-sysv
- ;;
- go32)
- basic_machine=i386-pc
- os=-go32
- ;;
- h3050r* | hiux*)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- h8300hms)
- basic_machine=h8300-hitachi
- os=-hms
- ;;
- h8300xray)
- basic_machine=h8300-hitachi
- os=-xray
- ;;
- h8500hms)
- basic_machine=h8500-hitachi
- os=-hms
- ;;
- harris)
- basic_machine=m88k-harris
- os=-sysv3
- ;;
- hp300-*)
- basic_machine=m68k-hp
- ;;
- hp300bsd)
- basic_machine=m68k-hp
- os=-bsd
- ;;
- hp300hpux)
- basic_machine=m68k-hp
- os=-hpux
- ;;
- hp3k9[0-9][0-9] | hp9[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k2[0-9][0-9] | hp9k31[0-9])
- basic_machine=m68000-hp
- ;;
- hp9k3[2-9][0-9])
- basic_machine=m68k-hp
- ;;
- hp9k6[0-9][0-9] | hp6[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k7[0-79][0-9] | hp7[0-79][0-9])
- basic_machine=hppa1.1-hp
- ;;
- hp9k78[0-9] | hp78[0-9])
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][13679] | hp8[0-9][13679])
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][0-9] | hp8[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hppa-next)
- os=-nextstep3
- ;;
- hppaosf)
- basic_machine=hppa1.1-hp
- os=-osf
- ;;
- hppro)
- basic_machine=hppa1.1-hp
- os=-proelf
- ;;
- i370-ibm* | ibm*)
- basic_machine=i370-ibm
- ;;
-# I'm not sure what "Sysv32" means. Should this be sysv3.2?
- i*86v32)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv32
- ;;
- i*86v4*)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv4
- ;;
- i*86v)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv
- ;;
- i*86sol2)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-solaris2
- ;;
- i386mach)
- basic_machine=i386-mach
- os=-mach
- ;;
- i386-vsta | vsta)
- basic_machine=i386-unknown
- os=-vsta
- ;;
- iris | iris4d)
- basic_machine=mips-sgi
- case $os in
- -irix*)
- ;;
- *)
- os=-irix4
- ;;
- esac
- ;;
- isi68 | isi)
- basic_machine=m68k-isi
- os=-sysv
- ;;
- m68knommu)
- basic_machine=m68k-unknown
- os=-linux
- ;;
- m68knommu-*)
- basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- m88k-omron*)
- basic_machine=m88k-omron
- ;;
- magnum | m3230)
- basic_machine=mips-mips
- os=-sysv
- ;;
- merlin)
- basic_machine=ns32k-utek
- os=-sysv
- ;;
- mingw32)
- basic_machine=i386-pc
- os=-mingw32
- ;;
- mingw32ce)
- basic_machine=arm-unknown
- os=-mingw32ce
- ;;
- miniframe)
- basic_machine=m68000-convergent
- ;;
- *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
- mips3*-*)
- basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
- ;;
- mips3*)
- basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
- ;;
- monitor)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- morphos)
- basic_machine=powerpc-unknown
- os=-morphos
- ;;
- msdos)
- basic_machine=i386-pc
- os=-msdos
- ;;
- ms1-*)
- basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
- ;;
- mvs)
- basic_machine=i370-ibm
- os=-mvs
- ;;
- ncr3000)
- basic_machine=i486-ncr
- os=-sysv4
- ;;
- netbsd386)
- basic_machine=i386-unknown
- os=-netbsd
- ;;
- netwinder)
- basic_machine=armv4l-rebel
- os=-linux
- ;;
- news | news700 | news800 | news900)
- basic_machine=m68k-sony
- os=-newsos
- ;;
- news1000)
- basic_machine=m68030-sony
- os=-newsos
- ;;
- news-3600 | risc-news)
- basic_machine=mips-sony
- os=-newsos
- ;;
- necv70)
- basic_machine=v70-nec
- os=-sysv
- ;;
- next | m*-next )
- basic_machine=m68k-next
- case $os in
- -nextstep* )
- ;;
- -ns2*)
- os=-nextstep2
- ;;
- *)
- os=-nextstep3
- ;;
- esac
- ;;
- nh3000)
- basic_machine=m68k-harris
- os=-cxux
- ;;
- nh[45]000)
- basic_machine=m88k-harris
- os=-cxux
- ;;
- nindy960)
- basic_machine=i960-intel
- os=-nindy
- ;;
- mon960)
- basic_machine=i960-intel
- os=-mon960
- ;;
- nonstopux)
- basic_machine=mips-compaq
- os=-nonstopux
- ;;
- np1)
- basic_machine=np1-gould
- ;;
- nsr-tandem)
- basic_machine=nsr-tandem
- ;;
- op50n-* | op60c-*)
- basic_machine=hppa1.1-oki
- os=-proelf
- ;;
- openrisc | openrisc-*)
- basic_machine=or32-unknown
- ;;
- os400)
- basic_machine=powerpc-ibm
- os=-os400
- ;;
- OSE68000 | ose68000)
- basic_machine=m68000-ericsson
- os=-ose
- ;;
- os68k)
- basic_machine=m68k-none
- os=-os68k
- ;;
- pa-hitachi)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- paragon)
- basic_machine=i860-intel
- os=-osf
- ;;
- parisc)
- basic_machine=hppa-unknown
- os=-linux
- ;;
- parisc-*)
- basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
- os=-linux
- ;;
- pbd)
- basic_machine=sparc-tti
- ;;
- pbb)
- basic_machine=m68k-tti
- ;;
- pc532 | pc532-*)
- basic_machine=ns32k-pc532
- ;;
- pc98)
- basic_machine=i386-pc
- ;;
- pc98-*)
- basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentium | p5 | k5 | k6 | nexgen | viac3)
- basic_machine=i586-pc
- ;;
- pentiumpro | p6 | 6x86 | athlon | athlon_*)
- basic_machine=i686-pc
- ;;
- pentiumii | pentium2 | pentiumiii | pentium3)
- basic_machine=i686-pc
- ;;
- pentium4)
- basic_machine=i786-pc
- ;;
- pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
- basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentiumpro-* | p6-* | 6x86-* | athlon-*)
- basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
- basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentium4-*)
- basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pn)
- basic_machine=pn-gould
- ;;
- power) basic_machine=power-ibm
- ;;
- ppc) basic_machine=powerpc-unknown
- ;;
- ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppcle | powerpclittle | ppc-le | powerpc-little)
- basic_machine=powerpcle-unknown
- ;;
- ppcle-* | powerpclittle-*)
- basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppc64) basic_machine=powerpc64-unknown
- ;;
- ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppc64le | powerpc64little | ppc64-le | powerpc64-little)
- basic_machine=powerpc64le-unknown
- ;;
- ppc64le-* | powerpc64little-*)
- basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ps2)
- basic_machine=i386-ibm
- ;;
- pw32)
- basic_machine=i586-unknown
- os=-pw32
- ;;
- rdos)
- basic_machine=i386-pc
- os=-rdos
- ;;
- rom68k)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- rm[46]00)
- basic_machine=mips-siemens
- ;;
- rtpc | rtpc-*)
- basic_machine=romp-ibm
- ;;
- s390 | s390-*)
- basic_machine=s390-ibm
- ;;
- s390x | s390x-*)
- basic_machine=s390x-ibm
- ;;
- sa29200)
- basic_machine=a29k-amd
- os=-udi
- ;;
- sb1)
- basic_machine=mipsisa64sb1-unknown
- ;;
- sb1el)
- basic_machine=mipsisa64sb1el-unknown
- ;;
- sde)
- basic_machine=mipsisa32-sde
- os=-elf
- ;;
- sei)
- basic_machine=mips-sei
- os=-seiux
- ;;
- sequent)
- basic_machine=i386-sequent
- ;;
- sh)
- basic_machine=sh-hitachi
- os=-hms
- ;;
- sh5el)
- basic_machine=sh5le-unknown
- ;;
- sh64)
- basic_machine=sh64-unknown
- ;;
- sparclite-wrs | simso-wrs)
- basic_machine=sparclite-wrs
- os=-vxworks
- ;;
- sps7)
- basic_machine=m68k-bull
- os=-sysv2
- ;;
- spur)
- basic_machine=spur-unknown
- ;;
- st2000)
- basic_machine=m68k-tandem
- ;;
- stratus)
- basic_machine=i860-stratus
- os=-sysv4
- ;;
- sun2)
- basic_machine=m68000-sun
- ;;
- sun2os3)
- basic_machine=m68000-sun
- os=-sunos3
- ;;
- sun2os4)
- basic_machine=m68000-sun
- os=-sunos4
- ;;
- sun3os3)
- basic_machine=m68k-sun
- os=-sunos3
- ;;
- sun3os4)
- basic_machine=m68k-sun
- os=-sunos4
- ;;
- sun4os3)
- basic_machine=sparc-sun
- os=-sunos3
- ;;
- sun4os4)
- basic_machine=sparc-sun
- os=-sunos4
- ;;
- sun4sol2)
- basic_machine=sparc-sun
- os=-solaris2
- ;;
- sun3 | sun3-*)
- basic_machine=m68k-sun
- ;;
- sun4)
- basic_machine=sparc-sun
- ;;
- sun386 | sun386i | roadrunner)
- basic_machine=i386-sun
- ;;
- sv1)
- basic_machine=sv1-cray
- os=-unicos
- ;;
- symmetry)
- basic_machine=i386-sequent
- os=-dynix
- ;;
- t3e)
- basic_machine=alphaev5-cray
- os=-unicos
- ;;
- t90)
- basic_machine=t90-cray
- os=-unicos
- ;;
- tic54x | c54x*)
- basic_machine=tic54x-unknown
- os=-coff
- ;;
- tic55x | c55x*)
- basic_machine=tic55x-unknown
- os=-coff
- ;;
- tic6x | c6x*)
- basic_machine=tic6x-unknown
- os=-coff
- ;;
- tile*)
- basic_machine=tile-unknown
- os=-linux-gnu
- ;;
- tx39)
- basic_machine=mipstx39-unknown
- ;;
- tx39el)
- basic_machine=mipstx39el-unknown
- ;;
- toad1)
- basic_machine=pdp10-xkl
- os=-tops20
- ;;
- tower | tower-32)
- basic_machine=m68k-ncr
- ;;
- tpf)
- basic_machine=s390x-ibm
- os=-tpf
- ;;
- udi29k)
- basic_machine=a29k-amd
- os=-udi
- ;;
- ultra3)
- basic_machine=a29k-nyu
- os=-sym1
- ;;
- v810 | necv810)
- basic_machine=v810-nec
- os=-none
- ;;
- vaxv)
- basic_machine=vax-dec
- os=-sysv
- ;;
- vms)
- basic_machine=vax-dec
- os=-vms
- ;;
- vpp*|vx|vx-*)
- basic_machine=f301-fujitsu
- ;;
- vxworks960)
- basic_machine=i960-wrs
- os=-vxworks
- ;;
- vxworks68)
- basic_machine=m68k-wrs
- os=-vxworks
- ;;
- vxworks29k)
- basic_machine=a29k-wrs
- os=-vxworks
- ;;
- w65*)
- basic_machine=w65-wdc
- os=-none
- ;;
- w89k-*)
- basic_machine=hppa1.1-winbond
- os=-proelf
- ;;
- xbox)
- basic_machine=i686-pc
- os=-mingw32
- ;;
- xps | xps100)
- basic_machine=xps100-honeywell
- ;;
- ymp)
- basic_machine=ymp-cray
- os=-unicos
- ;;
- z8k-*-coff)
- basic_machine=z8k-unknown
- os=-sim
- ;;
- none)
- basic_machine=none-none
- os=-none
- ;;
-
-# Here we handle the default manufacturer of certain CPU types. It is in
-# some cases the only manufacturer, in others, it is the most popular.
- w89k)
- basic_machine=hppa1.1-winbond
- ;;
- op50n)
- basic_machine=hppa1.1-oki
- ;;
- op60c)
- basic_machine=hppa1.1-oki
- ;;
- romp)
- basic_machine=romp-ibm
- ;;
- mmix)
- basic_machine=mmix-knuth
- ;;
- rs6000)
- basic_machine=rs6000-ibm
- ;;
- vax)
- basic_machine=vax-dec
- ;;
- pdp10)
- # there are many clones, so DEC is not a safe bet
- basic_machine=pdp10-unknown
- ;;
- pdp11)
- basic_machine=pdp11-dec
- ;;
- we32k)
- basic_machine=we32k-att
- ;;
- sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
- basic_machine=sh-unknown
- ;;
- sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
- basic_machine=sparc-sun
- ;;
- cydra)
- basic_machine=cydra-cydrome
- ;;
- orion)
- basic_machine=orion-highlevel
- ;;
- orion105)
- basic_machine=clipper-highlevel
- ;;
- mac | mpw | mac-mpw)
- basic_machine=m68k-apple
- ;;
- pmac | pmac-mpw)
- basic_machine=powerpc-apple
- ;;
- *-unknown)
- # Make sure to match an already-canonicalized machine name.
- ;;
- *)
- echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
- exit 1
- ;;
-esac
-
-# Here we canonicalize certain aliases for manufacturers.
-case $basic_machine in
- *-digital*)
- basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
- ;;
- *-commodore*)
- basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
- ;;
- *)
- ;;
-esac
-
-# Decode manufacturer-specific aliases for certain operating systems.
-
-if [ x"$os" != x"" ]
-then
-case $os in
- # First match some system type aliases
- # that might get confused with valid system types.
- # -solaris* is a basic system type, with this one exception.
- -solaris1 | -solaris1.*)
- os=`echo $os | sed -e 's|solaris1|sunos4|'`
- ;;
- -solaris)
- os=-solaris2
- ;;
- -svr4*)
- os=-sysv4
- ;;
- -unixware*)
- os=-sysv4.2uw
- ;;
- -gnu/linux*)
- os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
- ;;
- # First accept the basic system types.
- # The portable systems comes first.
- # Each alternative MUST END IN A *, to match a version number.
- # -sysv* is not here because it comes later, after sysvr4.
- -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
- | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
- | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
- | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
- | -aos* \
- | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
- | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
- | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
- | -openbsd* | -solidbsd* \
- | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
- | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
- | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
- | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
- | -chorusos* | -chorusrdb* \
- | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
- | -uxpv* | -beos* | -mpeix* | -udk* \
- | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
- | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
- | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
- | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
- | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
- | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
- | -skyos* | -haiku* | -rdos* | -toppers* | -drops*)
- # Remember, each alternative MUST END IN *, to match a version number.
- ;;
- -qnx*)
- case $basic_machine in
- x86-* | i*86-*)
- ;;
- *)
- os=-nto$os
- ;;
- esac
- ;;
- -nto-qnx*)
- ;;
- -nto*)
- os=`echo $os | sed -e 's|nto|nto-qnx|'`
- ;;
- -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
- | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
- | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
- ;;
- -mac*)
- os=`echo $os | sed -e 's|mac|macos|'`
- ;;
- -linux-dietlibc)
- os=-linux-dietlibc
- ;;
- -linux*)
- os=`echo $os | sed -e 's|linux|linux-gnu|'`
- ;;
- -sunos5*)
- os=`echo $os | sed -e 's|sunos5|solaris2|'`
- ;;
- -sunos6*)
- os=`echo $os | sed -e 's|sunos6|solaris3|'`
- ;;
- -opened*)
- os=-openedition
- ;;
- -os400*)
- os=-os400
- ;;
- -wince*)
- os=-wince
- ;;
- -osfrose*)
- os=-osfrose
- ;;
- -osf*)
- os=-osf
- ;;
- -utek*)
- os=-bsd
- ;;
- -dynix*)
- os=-bsd
- ;;
- -acis*)
- os=-aos
- ;;
- -atheos*)
- os=-atheos
- ;;
- -syllable*)
- os=-syllable
- ;;
- -386bsd)
- os=-bsd
- ;;
- -ctix* | -uts*)
- os=-sysv
- ;;
- -nova*)
- os=-rtmk-nova
- ;;
- -ns2 )
- os=-nextstep2
- ;;
- -nsk*)
- os=-nsk
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- # Preserve the version number of sinix5.
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- os=`echo $os | sed -e 's|sinix|sysv|'`
- ;;
- -sinix*)
- os=-sysv4
- ;;
- -tpf*)
- os=-tpf
- ;;
- -triton*)
- os=-sysv3
- ;;
- -oss*)
- os=-sysv3
- ;;
- -svr4)
- os=-sysv4
- ;;
- -svr3)
- os=-sysv3
- ;;
- -sysvr4)
- os=-sysv4
- ;;
- # This must come after -sysvr4.
- -sysv*)
- ;;
- -ose*)
- os=-ose
- ;;
- -es1800*)
- os=-ose
- ;;
- -xenix)
- os=-xenix
- ;;
- -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
- os=-mint
- ;;
- -aros*)
- os=-aros
- ;;
- -kaos*)
- os=-kaos
- ;;
- -zvmoe)
- os=-zvmoe
- ;;
- -none)
- ;;
- *)
- # Get rid of the `-' at the beginning of $os.
- os=`echo $os | sed 's/[^-]*-//'`
- echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
- exit 1
- ;;
-esac
-else
-
-# Here we handle the default operating systems that come with various machines.
-# The value should be what the vendor currently ships out the door with their
-# machine or put another way, the most popular os provided with the machine.
-
-# Note that if you're going to try to match "-MANUFACTURER" here (say,
-# "-sun"), then you have to tell the case statement up towards the top
-# that MANUFACTURER isn't an operating system. Otherwise, code above
-# will signal an error saying that MANUFACTURER isn't an operating
-# system, and we'll never get to this point.
-
-case $basic_machine in
- score-*)
- os=-elf
- ;;
- spu-*)
- os=-elf
- ;;
- *-acorn)
- os=-riscix1.2
- ;;
- arm*-rebel)
- os=-linux
- ;;
- arm*-semi)
- os=-aout
- ;;
- c4x-* | tic4x-*)
- os=-coff
- ;;
- # This must come before the *-dec entry.
- pdp10-*)
- os=-tops20
- ;;
- pdp11-*)
- os=-none
- ;;
- *-dec | vax-*)
- os=-ultrix4.2
- ;;
- m68*-apollo)
- os=-domain
- ;;
- i386-sun)
- os=-sunos4.0.2
- ;;
- m68000-sun)
- os=-sunos3
- # This also exists in the configure program, but was not the
- # default.
- # os=-sunos4
- ;;
- m68*-cisco)
- os=-aout
- ;;
- mep-*)
- os=-elf
- ;;
- mips*-cisco)
- os=-elf
- ;;
- mips*-*)
- os=-elf
- ;;
- or32-*)
- os=-coff
- ;;
- *-tti) # must be before sparc entry or we get the wrong os.
- os=-sysv3
- ;;
- sparc-* | *-sun)
- os=-sunos4.1.1
- ;;
- *-be)
- os=-beos
- ;;
- *-haiku)
- os=-haiku
- ;;
- *-ibm)
- os=-aix
- ;;
- *-knuth)
- os=-mmixware
- ;;
- *-wec)
- os=-proelf
- ;;
- *-winbond)
- os=-proelf
- ;;
- *-oki)
- os=-proelf
- ;;
- *-hp)
- os=-hpux
- ;;
- *-hitachi)
- os=-hiux
- ;;
- i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
- os=-sysv
- ;;
- *-cbm)
- os=-amigaos
- ;;
- *-dg)
- os=-dgux
- ;;
- *-dolphin)
- os=-sysv3
- ;;
- m68k-ccur)
- os=-rtu
- ;;
- m88k-omron*)
- os=-luna
- ;;
- *-next )
- os=-nextstep
- ;;
- *-sequent)
- os=-ptx
- ;;
- *-crds)
- os=-unos
- ;;
- *-ns)
- os=-genix
- ;;
- i370-*)
- os=-mvs
- ;;
- *-next)
- os=-nextstep3
- ;;
- *-gould)
- os=-sysv
- ;;
- *-highlevel)
- os=-bsd
- ;;
- *-encore)
- os=-bsd
- ;;
- *-sgi)
- os=-irix
- ;;
- *-siemens)
- os=-sysv4
- ;;
- *-masscomp)
- os=-rtu
- ;;
- f30[01]-fujitsu | f700-fujitsu)
- os=-uxpv
- ;;
- *-rom68k)
- os=-coff
- ;;
- *-*bug)
- os=-coff
- ;;
- *-apple)
- os=-macos
- ;;
- *-atari*)
- os=-mint
- ;;
- *)
- os=-none
- ;;
-esac
-fi
-
-# Here we handle the case where we know the os, and the CPU type, but not the
-# manufacturer. We pick the logical manufacturer.
-vendor=unknown
-case $basic_machine in
- *-unknown)
- case $os in
- -riscix*)
- vendor=acorn
- ;;
- -sunos*)
- vendor=sun
- ;;
- -aix*)
- vendor=ibm
- ;;
- -beos*)
- vendor=be
- ;;
- -hpux*)
- vendor=hp
- ;;
- -mpeix*)
- vendor=hp
- ;;
- -hiux*)
- vendor=hitachi
- ;;
- -unos*)
- vendor=crds
- ;;
- -dgux*)
- vendor=dg
- ;;
- -luna*)
- vendor=omron
- ;;
- -genix*)
- vendor=ns
- ;;
- -mvs* | -opened*)
- vendor=ibm
- ;;
- -os400*)
- vendor=ibm
- ;;
- -ptx*)
- vendor=sequent
- ;;
- -tpf*)
- vendor=ibm
- ;;
- -vxsim* | -vxworks* | -windiss*)
- vendor=wrs
- ;;
- -aux*)
- vendor=apple
- ;;
- -hms*)
- vendor=hitachi
- ;;
- -mpw* | -macos*)
- vendor=apple
- ;;
- -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
- vendor=atari
- ;;
- -vos*)
- vendor=stratus
- ;;
- esac
- basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
- ;;
-esac
-
-echo $basic_machine$os
-exit
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "timestamp='"
-# time-stamp-format: "%:y-%02m-%02d"
-# time-stamp-end: "'"
-# End:
+++ /dev/null
-/* config.h. Generated from config.h.in by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the `clock_gettime' function. */
-/* #undef HAVE_CLOCK_GETTIME */
-
-/* "use syscall interface for clock_gettime" */
-/* #undef HAVE_CLOCK_SYSCALL */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the `epoll_ctl' function. */
-/* #undef HAVE_EPOLL_CTL */
-
-/* Define to 1 if you have the `eventfd' function. */
-/* #undef HAVE_EVENTFD */
-
-/* Define to 1 if you have the `inotify_init' function. */
-/* #undef HAVE_INOTIFY_INIT */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
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-/* Define to 1 if you have the `kqueue' function. */
-/* #undef HAVE_KQUEUE */
-
-/* Define to 1 if you have the `m' library (-lm). */
-#define HAVE_LIBM 1
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-/* Define to 1 if you have the `rt' library (-lrt). */
-/* #undef HAVE_LIBRT */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
-/* #undef HAVE_NANOSLEEP */
-
-/* Define to 1 if you have the `poll' function. */
-#define HAVE_POLL 1
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-/* Define to 1 if you have the <poll.h> header file. */
-#define HAVE_POLL_H 1
-
-/* Define to 1 if you have the `port_create' function. */
-/* #undef HAVE_PORT_CREATE */
-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
-/* Define to 1 if you have the `select' function. */
-#define HAVE_SELECT 1
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-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
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-/* Define to 1 if you have the <strings.h> header file. */
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-
-/* Define to 1 if you have the <string.h> header file. */
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-/* Define to 1 if you have the <sys/epoll.h> header file. */
-/* #undef HAVE_SYS_EPOLL_H */
-
-/* Define to 1 if you have the <sys/eventfd.h> header file. */
-/* #undef HAVE_SYS_EVENTFD_H */
-
-/* Define to 1 if you have the <sys/event.h> header file. */
-/* #undef HAVE_SYS_EVENT_H */
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-/* Define to 1 if you have the <sys/inotify.h> header file. */
-/* #undef HAVE_SYS_INOTIFY_H */
-
-/* Define to 1 if you have the <sys/queue.h> header file. */
-#define HAVE_SYS_QUEUE_H 1
-
-/* Define to 1 if you have the <sys/select.h> header file. */
-#define HAVE_SYS_SELECT_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
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-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING ""
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
+++ /dev/null
-/* config.h. Generated from config.h.in by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the `clock_gettime' function. */
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-
-/* "use syscall interface for clock_gettime" */
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-/* Define to 1 if you have the <dlfcn.h> header file. */
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-/* Define to 1 if you have the `epoll_ctl' function. */
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-/* Define to 1 if you have the `eventfd' function. */
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-/* Define to 1 if you have the `inotify_init' function. */
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-/* Define to 1 if you have the <inttypes.h> header file. */
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-/* Define to 1 if you have the `kqueue' function. */
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-/* Define to 1 if you have the `m' library (-lm). */
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-/* Define to 1 if you have the `rt' library (-lrt). */
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-/* Define to 1 if you have the <memory.h> header file. */
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-/* Define to 1 if you have the <poll.h> header file. */
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-/* Define to 1 if you have the <port.h> header file. */
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-/* Define to 1 if you have the <stdlib.h> header file. */
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-/* Define to 1 if you have the <strings.h> header file. */
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-/* Define to 1 if you have the <string.h> header file. */
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-/* Define to 1 if you have the <sys/epoll.h> header file. */
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-/* Define to 1 if you have the <sys/eventfd.h> header file. */
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-/* Define to 1 if you have the <sys/event.h> header file. */
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-/* Define to 1 if you have the <sys/inotify.h> header file. */
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-/* Define to 1 if you have the <sys/queue.h> header file. */
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-/* Define to 1 if you have the <sys/select.h> header file. */
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-/* Define to 1 if you have the <sys/signalfd.h> header file. */
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-/* Define to 1 if you have the <sys/stat.h> header file. */
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-/* Define to 1 if you have the <sys/types.h> header file. */
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-/* Define to 1 if you have the <unistd.h> header file. */
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-
-/* Name of package */
-#define PACKAGE "libev"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT ""
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME ""
-
-/* Define to the full name and version of this package. */
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-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION ""
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "3.9"
+++ /dev/null
-/* config.h. Generated from config.h.in by configure. */
-/* config.h.in. Generated from configure.ac by autoheader. */
-
-/* Define to 1 if you have the `clock_gettime' function. */
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-
-/* "use syscall interface for clock_gettime" */
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-/* Define to 1 if you have the <dlfcn.h> header file. */
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-/* Define to 1 if you have the `epoll_ctl' function. */
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-
-/* Define to 1 if you have the `eventfd' function. */
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-/* Define to 1 if you have the `inotify_init' function. */
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-/* Define to 1 if you have the <inttypes.h> header file. */
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-
-/* Define to 1 if you have the `kqueue' function. */
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-
-/* Define to 1 if you have the `m' library (-lm). */
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-
-/* Define to 1 if you have the `rt' library (-lrt). */
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-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `nanosleep' function. */
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-/* Define to 1 if you have the `poll' function. */
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-/* Define to 1 if you have the <poll.h> header file. */
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-
-/* Define to 1 if you have the `port_create' function. */
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-
-/* Define to 1 if you have the <port.h> header file. */
-/* #undef HAVE_PORT_H */
-
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+++ /dev/null
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- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in sed gsed; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
- { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
-# Check for GNU ac_path_SED and select it if it is found.
- # Check for GNU $ac_path_SED
-case `"$ac_path_SED" --version 2>&1` in
-*GNU*)
- ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
-*)
- ac_count=0
- $as_echo_n 0123456789 >"conftest.in"
- while :
- do
- cat "conftest.in" "conftest.in" >"conftest.tmp"
- mv "conftest.tmp" "conftest.in"
- cp "conftest.in" "conftest.nl"
- $as_echo '' >> "conftest.nl"
- "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
- diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
- as_fn_arith $ac_count + 1 && ac_count=$as_val
- if test $ac_count -gt ${ac_path_SED_max-0}; then
- # Best one so far, save it but keep looking for a better one
- ac_cv_path_SED="$ac_path_SED"
- ac_path_SED_max=$ac_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
- $ac_path_SED_found && break 3
- done
- done
- done
-IFS=$as_save_IFS
- if test -z "$ac_cv_path_SED"; then
- as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
- fi
-else
- ac_cv_path_SED=$SED
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
-$as_echo "$ac_cv_path_SED" >&6; }
- SED="$ac_cv_path_SED"
- rm -f conftest.sed
-
-test -z "$SED" && SED=sed
-Xsed="$SED -e 1s/^X//"
-
-
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if test "${ac_cv_path_GREP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -z "$GREP"; then
- ac_path_GREP_found=false
- # Loop through the user's path and test for each of PROGNAME-LIST
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in grep ggrep; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
- { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
-# Check for GNU ac_path_GREP and select it if it is found.
- # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
- ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
- ac_count=0
- $as_echo_n 0123456789 >"conftest.in"
- while :
- do
- cat "conftest.in" "conftest.in" >"conftest.tmp"
- mv "conftest.tmp" "conftest.in"
- cp "conftest.in" "conftest.nl"
- $as_echo 'GREP' >> "conftest.nl"
- "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
- diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
- as_fn_arith $ac_count + 1 && ac_count=$as_val
- if test $ac_count -gt ${ac_path_GREP_max-0}; then
- # Best one so far, save it but keep looking for a better one
- ac_cv_path_GREP="$ac_path_GREP"
- ac_path_GREP_max=$ac_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
- $ac_path_GREP_found && break 3
- done
- done
- done
-IFS=$as_save_IFS
- if test -z "$ac_cv_path_GREP"; then
- as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
- fi
-else
- ac_cv_path_GREP=$GREP
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-$as_echo "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-$as_echo_n "checking for egrep... " >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
- then ac_cv_path_EGREP="$GREP -E"
- else
- if test -z "$EGREP"; then
- ac_path_EGREP_found=false
- # Loop through the user's path and test for each of PROGNAME-LIST
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in egrep; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
- { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
- # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
- ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
- ac_count=0
- $as_echo_n 0123456789 >"conftest.in"
- while :
- do
- cat "conftest.in" "conftest.in" >"conftest.tmp"
- mv "conftest.tmp" "conftest.in"
- cp "conftest.in" "conftest.nl"
- $as_echo 'EGREP' >> "conftest.nl"
- "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
- diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
- as_fn_arith $ac_count + 1 && ac_count=$as_val
- if test $ac_count -gt ${ac_path_EGREP_max-0}; then
- # Best one so far, save it but keep looking for a better one
- ac_cv_path_EGREP="$ac_path_EGREP"
- ac_path_EGREP_max=$ac_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
- $ac_path_EGREP_found && break 3
- done
- done
- done
-IFS=$as_save_IFS
- if test -z "$ac_cv_path_EGREP"; then
- as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
- fi
-else
- ac_cv_path_EGREP=$EGREP
-fi
-
- fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-$as_echo "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
-$as_echo_n "checking for fgrep... " >&6; }
-if test "${ac_cv_path_FGREP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
- then ac_cv_path_FGREP="$GREP -F"
- else
- if test -z "$FGREP"; then
- ac_path_FGREP_found=false
- # Loop through the user's path and test for each of PROGNAME-LIST
- as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_prog in fgrep; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
- { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
-# Check for GNU ac_path_FGREP and select it if it is found.
- # Check for GNU $ac_path_FGREP
-case `"$ac_path_FGREP" --version 2>&1` in
-*GNU*)
- ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
-*)
- ac_count=0
- $as_echo_n 0123456789 >"conftest.in"
- while :
- do
- cat "conftest.in" "conftest.in" >"conftest.tmp"
- mv "conftest.tmp" "conftest.in"
- cp "conftest.in" "conftest.nl"
- $as_echo 'FGREP' >> "conftest.nl"
- "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
- diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
- as_fn_arith $ac_count + 1 && ac_count=$as_val
- if test $ac_count -gt ${ac_path_FGREP_max-0}; then
- # Best one so far, save it but keep looking for a better one
- ac_cv_path_FGREP="$ac_path_FGREP"
- ac_path_FGREP_max=$ac_count
- fi
- # 10*(2^10) chars as input seems more than enough
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
- $ac_path_FGREP_found && break 3
- done
- done
- done
-IFS=$as_save_IFS
- if test -z "$ac_cv_path_FGREP"; then
- as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
- fi
-else
- ac_cv_path_FGREP=$FGREP
-fi
-
- fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
-$as_echo "$ac_cv_path_FGREP" >&6; }
- FGREP="$ac_cv_path_FGREP"
-
-
-test -z "$GREP" && GREP=grep
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# Check whether --with-gnu-ld was given.
-if test "${with_gnu_ld+set}" = set; then :
- withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
-else
- with_gnu_ld=no
-fi
-
-ac_prog=ld
-if test "$GCC" = yes; then
- # Check if gcc -print-prog-name=ld gives a path.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
-$as_echo_n "checking for ld used by $CC... " >&6; }
- case $host in
- *-*-mingw*)
- # gcc leaves a trailing carriage return which upsets mingw
- ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
- *)
- ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
- esac
- case $ac_prog in
- # Accept absolute paths.
- [\\/]* | ?:[\\/]*)
- re_direlt='/[^/][^/]*/\.\./'
- # Canonicalize the pathname of ld
- ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
- while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
- ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
- done
- test -z "$LD" && LD="$ac_prog"
- ;;
- "")
- # If it fails, then pretend we aren't using GCC.
- ac_prog=ld
- ;;
- *)
- # If it is relative, then search for the first ld in PATH.
- with_gnu_ld=unknown
- ;;
- esac
-elif test "$with_gnu_ld" = yes; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
-$as_echo_n "checking for GNU ld... " >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
-$as_echo_n "checking for non-GNU ld... " >&6; }
-fi
-if test "${lt_cv_path_LD+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -z "$LD"; then
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
- lt_cv_path_LD="$ac_dir/$ac_prog"
- # Check to see if the program is GNU ld. I'd rather use --version,
- # but apparently some variants of GNU ld only accept -v.
- # Break only if it was the GNU/non-GNU ld that we prefer.
- case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
- *GNU* | *'with BFD'*)
- test "$with_gnu_ld" != no && break
- ;;
- *)
- test "$with_gnu_ld" != yes && break
- ;;
- esac
- fi
- done
- IFS="$lt_save_ifs"
-else
- lt_cv_path_LD="$LD" # Let the user override the test with a path.
-fi
-fi
-
-LD="$lt_cv_path_LD"
-if test -n "$LD"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
-$as_echo "$LD" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
-$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
-if test "${lt_cv_prog_gnu_ld+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- # I'd rather use --version here, but apparently some GNU lds only accept -v.
-case `$LD -v 2>&1 </dev/null` in
-*GNU* | *'with BFD'*)
- lt_cv_prog_gnu_ld=yes
- ;;
-*)
- lt_cv_prog_gnu_ld=no
- ;;
-esac
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
-$as_echo "$lt_cv_prog_gnu_ld" >&6; }
-with_gnu_ld=$lt_cv_prog_gnu_ld
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
-$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
-if test "${lt_cv_path_NM+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$NM"; then
- # Let the user override the test.
- lt_cv_path_NM="$NM"
-else
- lt_nm_to_check="${ac_tool_prefix}nm"
- if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
- lt_nm_to_check="$lt_nm_to_check nm"
- fi
- for lt_tmp_nm in $lt_nm_to_check; do
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- tmp_nm="$ac_dir/$lt_tmp_nm"
- if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
- # Check to see if the nm accepts a BSD-compat flag.
- # Adding the `sed 1q' prevents false positives on HP-UX, which says:
- # nm: unknown option "B" ignored
- # Tru64's nm complains that /dev/null is an invalid object file
- case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
- */dev/null* | *'Invalid file or object type'*)
- lt_cv_path_NM="$tmp_nm -B"
- break
- ;;
- *)
- case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
- */dev/null*)
- lt_cv_path_NM="$tmp_nm -p"
- break
- ;;
- *)
- lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
- continue # so that we can try to find one that supports BSD flags
- ;;
- esac
- ;;
- esac
- fi
- done
- IFS="$lt_save_ifs"
- done
- : ${lt_cv_path_NM=no}
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
-$as_echo "$lt_cv_path_NM" >&6; }
-if test "$lt_cv_path_NM" != "no"; then
- NM="$lt_cv_path_NM"
-else
- # Didn't find any BSD compatible name lister, look for dumpbin.
- if test -n "$ac_tool_prefix"; then
- for ac_prog in "dumpbin -symbols" "link -dump -symbols"
- do
- # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
-set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_DUMPBIN+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$DUMPBIN"; then
- ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-DUMPBIN=$ac_cv_prog_DUMPBIN
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- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
-$as_echo "$DUMPBIN" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- test -n "$DUMPBIN" && break
- done
-fi
-if test -z "$DUMPBIN"; then
- ac_ct_DUMPBIN=$DUMPBIN
- for ac_prog in "dumpbin -symbols" "link -dump -symbols"
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_DUMPBIN+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_DUMPBIN"; then
- ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
-if test -n "$ac_ct_DUMPBIN"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
-$as_echo "$ac_ct_DUMPBIN" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- test -n "$ac_ct_DUMPBIN" && break
-done
-
- if test "x$ac_ct_DUMPBIN" = x; then
- DUMPBIN=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- DUMPBIN=$ac_ct_DUMPBIN
- fi
-fi
-
-
- if test "$DUMPBIN" != ":"; then
- NM="$DUMPBIN"
- fi
-fi
-test -z "$NM" && NM=nm
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
-$as_echo_n "checking the name lister ($NM) interface... " >&6; }
-if test "${lt_cv_nm_interface+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_nm_interface="BSD nm"
- echo "int some_variable = 0;" > conftest.$ac_ext
- (eval echo "\"\$as_me:4494: $ac_compile\"" >&5)
- (eval "$ac_compile" 2>conftest.err)
- cat conftest.err >&5
- (eval echo "\"\$as_me:4497: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
- (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
- cat conftest.err >&5
- (eval echo "\"\$as_me:4500: output\"" >&5)
- cat conftest.out >&5
- if $GREP 'External.*some_variable' conftest.out > /dev/null; then
- lt_cv_nm_interface="MS dumpbin"
- fi
- rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
-$as_echo "$lt_cv_nm_interface" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
-$as_echo_n "checking whether ln -s works... " >&6; }
-LN_S=$as_ln_s
-if test "$LN_S" = "ln -s"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
-$as_echo "no, using $LN_S" >&6; }
-fi
-
-# find the maximum length of command line arguments
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
-$as_echo_n "checking the maximum length of command line arguments... " >&6; }
-if test "${lt_cv_sys_max_cmd_len+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- i=0
- teststring="ABCD"
-
- case $build_os in
- msdosdjgpp*)
- # On DJGPP, this test can blow up pretty badly due to problems in libc
- # (any single argument exceeding 2000 bytes causes a buffer overrun
- # during glob expansion). Even if it were fixed, the result of this
- # check would be larger than it should be.
- lt_cv_sys_max_cmd_len=12288; # 12K is about right
- ;;
-
- gnu*)
- # Under GNU Hurd, this test is not required because there is
- # no limit to the length of command line arguments.
- # Libtool will interpret -1 as no limit whatsoever
- lt_cv_sys_max_cmd_len=-1;
- ;;
-
- cygwin* | mingw* | cegcc*)
- # On Win9x/ME, this test blows up -- it succeeds, but takes
- # about 5 minutes as the teststring grows exponentially.
- # Worse, since 9x/ME are not pre-emptively multitasking,
- # you end up with a "frozen" computer, even though with patience
- # the test eventually succeeds (with a max line length of 256k).
- # Instead, let's just punt: use the minimum linelength reported by
- # all of the supported platforms: 8192 (on NT/2K/XP).
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- amigaos*)
- # On AmigaOS with pdksh, this test takes hours, literally.
- # So we just punt and use a minimum line length of 8192.
- lt_cv_sys_max_cmd_len=8192;
- ;;
-
- netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
- # This has been around since 386BSD, at least. Likely further.
- if test -x /sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
- elif test -x /usr/sbin/sysctl; then
- lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
- else
- lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
- fi
- # And add a safety zone
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- ;;
-
- interix*)
- # We know the value 262144 and hardcode it with a safety zone (like BSD)
- lt_cv_sys_max_cmd_len=196608
- ;;
-
- osf*)
- # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
- # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
- # nice to cause kernel panics so lets avoid the loop below.
- # First set a reasonable default.
- lt_cv_sys_max_cmd_len=16384
- #
- if test -x /sbin/sysconfig; then
- case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
- *1*) lt_cv_sys_max_cmd_len=-1 ;;
- esac
- fi
- ;;
- sco3.2v5*)
- lt_cv_sys_max_cmd_len=102400
- ;;
- sysv5* | sco5v6* | sysv4.2uw2*)
- kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
- if test -n "$kargmax"; then
- lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'`
- else
- lt_cv_sys_max_cmd_len=32768
- fi
- ;;
- *)
- lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len"; then
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
- else
- # Make teststring a little bigger before we do anything with it.
- # a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8 ; do
- teststring=$teststring$teststring
- done
- SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
- # If test is not a shell built-in, we'll probably end up computing a
- # maximum length that is only half of the actual maximum length, but
- # we can't tell.
- while { test "X"`$SHELL $0 --fallback-echo "X$teststring$teststring" 2>/dev/null` \
- = "XX$teststring$teststring"; } >/dev/null 2>&1 &&
- test $i != 17 # 1/2 MB should be enough
- do
- i=`expr $i + 1`
- teststring=$teststring$teststring
- done
- # Only check the string length outside the loop.
- lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
- teststring=
- # Add a significant safety factor because C++ compilers can tack on
- # massive amounts of additional arguments before passing them to the
- # linker. It appears as though 1/2 is a usable value.
- lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
- fi
- ;;
- esac
-
-fi
-
-if test -n $lt_cv_sys_max_cmd_len ; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
-$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
-$as_echo "none" >&6; }
-fi
-max_cmd_len=$lt_cv_sys_max_cmd_len
-
-
-
-
-
-
-: ${CP="cp -f"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
-$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
- test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
- = c,a/b,, \
- && eval 'test $(( 1 + 1 )) -eq 2 \
- && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
- && xsi_shell=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
-$as_echo "$xsi_shell" >&6; }
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
-$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
- >/dev/null 2>&1 \
- && lt_shell_append=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
-$as_echo "$lt_shell_append" >&6; }
-
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
- lt_unset=unset
-else
- lt_unset=false
-fi
-
-
-
-
-
-# test EBCDIC or ASCII
-case `echo X|tr X '\101'` in
- A) # ASCII based system
- # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
- lt_SP2NL='tr \040 \012'
- lt_NL2SP='tr \015\012 \040\040'
- ;;
- *) # EBCDIC based system
- lt_SP2NL='tr \100 \n'
- lt_NL2SP='tr \r\n \100\100'
- ;;
-esac
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
-$as_echo_n "checking for $LD option to reload object files... " >&6; }
-if test "${lt_cv_ld_reload_flag+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_ld_reload_flag='-r'
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
-$as_echo "$lt_cv_ld_reload_flag" >&6; }
-reload_flag=$lt_cv_ld_reload_flag
-case $reload_flag in
-"" | " "*) ;;
-*) reload_flag=" $reload_flag" ;;
-esac
-reload_cmds='$LD$reload_flag -o $output$reload_objs'
-case $host_os in
- darwin*)
- if test "$GCC" = yes; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
- else
- reload_cmds='$LD$reload_flag -o $output$reload_objs'
- fi
- ;;
-esac
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
-set dummy ${ac_tool_prefix}objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_OBJDUMP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OBJDUMP"; then
- ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OBJDUMP=$ac_cv_prog_OBJDUMP
-if test -n "$OBJDUMP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
-$as_echo "$OBJDUMP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OBJDUMP"; then
- ac_ct_OBJDUMP=$OBJDUMP
- # Extract the first word of "objdump", so it can be a program name with args.
-set dummy objdump; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_OBJDUMP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OBJDUMP"; then
- ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_OBJDUMP="objdump"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
-if test -n "$ac_ct_OBJDUMP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
-$as_echo "$ac_ct_OBJDUMP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OBJDUMP" = x; then
- OBJDUMP="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OBJDUMP=$ac_ct_OBJDUMP
- fi
-else
- OBJDUMP="$ac_cv_prog_OBJDUMP"
-fi
-
-test -z "$OBJDUMP" && OBJDUMP=objdump
-
-
-
-
-
-
-
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
-$as_echo_n "checking how to recognize dependent libraries... " >&6; }
-if test "${lt_cv_deplibs_check_method+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_file_magic_cmd='$MAGIC_CMD'
-lt_cv_file_magic_test_file=
-lt_cv_deplibs_check_method='unknown'
-# Need to set the preceding variable on all platforms that support
-# interlibrary dependencies.
-# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
-# 'pass_all' -- all dependencies passed with no checks.
-# 'test_compile' -- check by making test program.
-# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
-
-case $host_os in
-aix[4-9]*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-beos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-bsdi[45]*)
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
- lt_cv_file_magic_cmd='/usr/bin/file -L'
- lt_cv_file_magic_test_file=/shlib/libc.so
- ;;
-
-cygwin*)
- # func_win32_libid is a shell function defined in ltmain.sh
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- ;;
-
-mingw* | pw32*)
- # Base MSYS/MinGW do not provide the 'file' command needed by
- # func_win32_libid shell function, so use a weaker test based on 'objdump',
- # unless we find 'file', for example because we are cross-compiling.
- if ( file / ) >/dev/null 2>&1; then
- lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
- lt_cv_file_magic_cmd='func_win32_libid'
- else
- lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- fi
- ;;
-
-cegcc)
- # use the weaker test based on 'objdump'. See mingw*.
- lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
- lt_cv_file_magic_cmd='$OBJDUMP -f'
- ;;
-
-darwin* | rhapsody*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-freebsd* | dragonfly*)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- case $host_cpu in
- i*86 )
- # Not sure whether the presence of OpenBSD here was a mistake.
- # Let's accept both of them until this is cleared up.
- lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
- ;;
- esac
- else
- lt_cv_deplibs_check_method=pass_all
- fi
- ;;
-
-gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-hpux10.20* | hpux11*)
- lt_cv_file_magic_cmd=/usr/bin/file
- case $host_cpu in
- ia64*)
- lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
- lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
- ;;
- hppa*64*)
- lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - PA-RISC [0-9].[0-9]'
- lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
- ;;
- *)
- lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library'
- lt_cv_file_magic_test_file=/usr/lib/libc.sl
- ;;
- esac
- ;;
-
-interix[3-9]*)
- # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $LD in
- *-32|*"-32 ") libmagic=32-bit;;
- *-n32|*"-n32 ") libmagic=N32;;
- *-64|*"-64 ") libmagic=64-bit;;
- *) libmagic=never-match;;
- esac
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
- fi
- ;;
-
-newos6*)
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
- lt_cv_file_magic_cmd=/usr/bin/file
- lt_cv_file_magic_test_file=/usr/lib/libnls.so
- ;;
-
-*nto* | *qnx*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-openbsd*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
- else
- lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
- fi
- ;;
-
-osf3* | osf4* | osf5*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-rdos*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-solaris*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
-sysv4 | sysv4.3*)
- case $host_vendor in
- motorola)
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
- lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
- ;;
- ncr)
- lt_cv_deplibs_check_method=pass_all
- ;;
- sequent)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
- ;;
- sni)
- lt_cv_file_magic_cmd='/bin/file'
- lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
- lt_cv_file_magic_test_file=/lib/libc.so
- ;;
- siemens)
- lt_cv_deplibs_check_method=pass_all
- ;;
- pc)
- lt_cv_deplibs_check_method=pass_all
- ;;
- esac
- ;;
-
-tpf*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-esac
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
-$as_echo "$lt_cv_deplibs_check_method" >&6; }
-file_magic_cmd=$lt_cv_file_magic_cmd
-deplibs_check_method=$lt_cv_deplibs_check_method
-test -z "$deplibs_check_method" && deplibs_check_method=unknown
-
-
-
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_AR+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$AR"; then
- ac_cv_prog_AR="$AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_AR="${ac_tool_prefix}ar"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-AR=$ac_cv_prog_AR
-if test -n "$AR"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
-$as_echo "$AR" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_AR"; then
- ac_ct_AR=$AR
- # Extract the first word of "ar", so it can be a program name with args.
-set dummy ar; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_AR+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_AR"; then
- ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_AR="ar"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_AR=$ac_cv_prog_ac_ct_AR
-if test -n "$ac_ct_AR"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
-$as_echo "$ac_ct_AR" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_AR" = x; then
- AR="false"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- AR=$ac_ct_AR
- fi
-else
- AR="$ac_cv_prog_AR"
-fi
-
-test -z "$AR" && AR=ar
-test -z "$AR_FLAGS" && AR_FLAGS=cru
-
-
-
-
-
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
-set dummy ${ac_tool_prefix}strip; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_STRIP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$STRIP"; then
- ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_STRIP="${ac_tool_prefix}strip"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-STRIP=$ac_cv_prog_STRIP
-if test -n "$STRIP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
-$as_echo "$STRIP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_STRIP"; then
- ac_ct_STRIP=$STRIP
- # Extract the first word of "strip", so it can be a program name with args.
-set dummy strip; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_STRIP"; then
- ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_STRIP="strip"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
-if test -n "$ac_ct_STRIP"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
-$as_echo "$ac_ct_STRIP" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_STRIP" = x; then
- STRIP=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- STRIP=$ac_ct_STRIP
- fi
-else
- STRIP="$ac_cv_prog_STRIP"
-fi
-
-test -z "$STRIP" && STRIP=:
-
-
-
-
-
-
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_RANLIB+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$RANLIB"; then
- ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-RANLIB=$ac_cv_prog_RANLIB
-if test -n "$RANLIB"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
-$as_echo "$RANLIB" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_RANLIB"; then
- ac_ct_RANLIB=$RANLIB
- # Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_RANLIB"; then
- ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_RANLIB="ranlib"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
-if test -n "$ac_ct_RANLIB"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
-$as_echo "$ac_ct_RANLIB" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_RANLIB" = x; then
- RANLIB=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- RANLIB=$ac_ct_RANLIB
- fi
-else
- RANLIB="$ac_cv_prog_RANLIB"
-fi
-
-test -z "$RANLIB" && RANLIB=:
-
-
-
-
-
-
-# Determine commands to create old-style static archives.
-old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
-old_postinstall_cmds='chmod 644 $oldlib'
-old_postuninstall_cmds=
-
-if test -n "$RANLIB"; then
- case $host_os in
- openbsd*)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
- ;;
- *)
- old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
- ;;
- esac
- old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-
-
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
-$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
-if test "${lt_cv_sys_global_symbol_pipe+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
-
-# These are sane defaults that work on at least a few old systems.
-# [They come from Ultrix. What could be older than Ultrix?!! ;)]
-
-# Character class describing NM global symbol codes.
-symcode='[BCDEGRST]'
-
-# Regexp to match symbols that can be accessed directly from C.
-sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
-
-# Define system-specific variables.
-case $host_os in
-aix*)
- symcode='[BCDT]'
- ;;
-cygwin* | mingw* | pw32* | cegcc*)
- symcode='[ABCDGISTW]'
- ;;
-hpux*)
- if test "$host_cpu" = ia64; then
- symcode='[ABCDEGRST]'
- fi
- ;;
-irix* | nonstopux*)
- symcode='[BCDEGRST]'
- ;;
-osf*)
- symcode='[BCDEGQRST]'
- ;;
-solaris*)
- symcode='[BDRT]'
- ;;
-sco3.2v5*)
- symcode='[DT]'
- ;;
-sysv4.2uw2*)
- symcode='[DT]'
- ;;
-sysv5* | sco5v6* | unixware* | OpenUNIX*)
- symcode='[ABDT]'
- ;;
-sysv4)
- symcode='[DFNSTU]'
- ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-case `$NM -V 2>&1` in
-*GNU* | *'with BFD'*)
- symcode='[ABCDGIRSTW]' ;;
-esac
-
-# Transform an extracted symbol line into a proper C declaration.
-# Some systems (esp. on ia64) link data and code symbols differently,
-# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
-
-# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"lib\2\", (void *) \&\2},/p'"
-
-# Handle CRLF in mingw tool chain
-opt_cr=
-case $build_os in
-mingw*)
- opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
- ;;
-esac
-
-# Try without a prefix underscore, then with it.
-for ac_symprfx in "" "_"; do
-
- # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
- symxfrm="\\1 $ac_symprfx\\2 \\2"
-
- # Write the raw and C identifiers.
- if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function
- # and D for any global variable.
- # Also find C++ and __fastcall symbols from MSVC++,
- # which start with @ or ?.
- lt_cv_sys_global_symbol_pipe="$AWK '"\
-" {last_section=section; section=\$ 3};"\
-" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
-" \$ 0!~/External *\|/{next};"\
-" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
-" {if(hide[section]) next};"\
-" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-" s[1]~/^[@?]/{print s[1], s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
-" ' prfx=^$ac_symprfx"
- else
- lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
- fi
-
- # Check to see that the pipe works correctly.
- pipe_works=no
-
- rm -f conftest*
- cat > conftest.$ac_ext <<_LT_EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(void);
-void nm_test_func(void){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func();return(0);}
-_LT_EOF
-
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- # Now try to grab the symbols.
- nlist=conftest.nm
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist\""; } >&5
- (eval $NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s "$nlist"; then
- # Try sorting and uniquifying the output.
- if sort "$nlist" | uniq > "$nlist"T; then
- mv -f "$nlist"T "$nlist"
- else
- rm -f "$nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
- if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
- cat <<_LT_EOF > conftest.$ac_ext
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-_LT_EOF
- # Now generate the symbol file.
- eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
-
- cat <<_LT_EOF >> conftest.$ac_ext
-
-/* The mapping between symbol names and symbols. */
-const struct {
- const char *name;
- void *address;
-}
-lt__PROGRAM__LTX_preloaded_symbols[] =
-{
- { "@PROGRAM@", (void *) 0 },
-_LT_EOF
- $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
- cat <<\_LT_EOF >> conftest.$ac_ext
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt__PROGRAM__LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-_LT_EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- lt_save_LIBS="$LIBS"
- lt_save_CFLAGS="$CFLAGS"
- LIBS="conftstm.$ac_objext"
- CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest${ac_exeext}; then
- pipe_works=yes
- fi
- LIBS="$lt_save_LIBS"
- CFLAGS="$lt_save_CFLAGS"
- else
- echo "cannot find nm_test_func in $nlist" >&5
- fi
- else
- echo "cannot find nm_test_var in $nlist" >&5
- fi
- else
- echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
- fi
- else
- echo "$progname: failed program was:" >&5
- cat conftest.$ac_ext >&5
- fi
- rm -rf conftest* conftst*
-
- # Do not use the global_symbol_pipe unless it works.
- if test "$pipe_works" = yes; then
- break
- else
- lt_cv_sys_global_symbol_pipe=
- fi
-done
-
-fi
-
-if test -z "$lt_cv_sys_global_symbol_pipe"; then
- lt_cv_sys_global_symbol_to_cdecl=
-fi
-if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
-$as_echo "failed" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
-$as_echo "ok" >&6; }
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-# Check whether --enable-libtool-lock was given.
-if test "${enable_libtool_lock+set}" = set; then :
- enableval=$enable_libtool_lock;
-fi
-
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case $host in
-ia64-*-hpux*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- case `/usr/bin/file conftest.$ac_objext` in
- *ELF-32*)
- HPUX_IA64_MODE="32"
- ;;
- *ELF-64*)
- HPUX_IA64_MODE="64"
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-*-*-irix6*)
- # Find out which ABI we are using.
- echo '#line 5706 "configure"' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- if test "$lt_cv_prog_gnu_ld" = yes; then
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -melf32bsmip"
- ;;
- *N32*)
- LD="${LD-ld} -melf32bmipn32"
- ;;
- *64-bit*)
- LD="${LD-ld} -melf64bmip"
- ;;
- esac
- else
- case `/usr/bin/file conftest.$ac_objext` in
- *32-bit*)
- LD="${LD-ld} -32"
- ;;
- *N32*)
- LD="${LD-ld} -n32"
- ;;
- *64-bit*)
- LD="${LD-ld} -64"
- ;;
- esac
- fi
- fi
- rm -rf conftest*
- ;;
-
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- case `/usr/bin/file conftest.o` in
- *32-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_i386_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_i386"
- ;;
- ppc64-*linux*|powerpc64-*linux*)
- LD="${LD-ld} -m elf32ppclinux"
- ;;
- s390x-*linux*)
- LD="${LD-ld} -m elf_s390"
- ;;
- sparc64-*linux*)
- LD="${LD-ld} -m elf32_sparc"
- ;;
- esac
- ;;
- *64-bit*)
- case $host in
- x86_64-*kfreebsd*-gnu)
- LD="${LD-ld} -m elf_x86_64_fbsd"
- ;;
- x86_64-*linux*)
- LD="${LD-ld} -m elf_x86_64"
- ;;
- ppc*-*linux*|powerpc*-*linux*)
- LD="${LD-ld} -m elf64ppc"
- ;;
- s390*-*linux*|s390*-*tpf*)
- LD="${LD-ld} -m elf64_s390"
- ;;
- sparc*-*linux*)
- LD="${LD-ld} -m elf64_sparc"
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-
-*-*-sco3.2v5*)
- # On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -belf"
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
-$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
-if test "${lt_cv_cc_needs_belf+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- lt_cv_cc_needs_belf=yes
-else
- lt_cv_cc_needs_belf=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
-$as_echo "$lt_cv_cc_needs_belf" >&6; }
- if test x"$lt_cv_cc_needs_belf" != x"yes"; then
- # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS="$SAVE_CFLAGS"
- fi
- ;;
-sparc*-*solaris*)
- # Find out which ABI we are using.
- echo 'int i;' > conftest.$ac_ext
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; then
- case `/usr/bin/file conftest.o` in
- *64-bit*)
- case $lt_cv_prog_gnu_ld in
- yes*) LD="${LD-ld} -m elf64_sparc" ;;
- *)
- if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
- LD="${LD-ld} -64"
- fi
- ;;
- esac
- ;;
- esac
- fi
- rm -rf conftest*
- ;;
-esac
-
-need_locks="$enable_libtool_lock"
-
-
- case $host_os in
- rhapsody* | darwin*)
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
-set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_DSYMUTIL+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$DSYMUTIL"; then
- ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-DSYMUTIL=$ac_cv_prog_DSYMUTIL
-if test -n "$DSYMUTIL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
-$as_echo "$DSYMUTIL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_DSYMUTIL"; then
- ac_ct_DSYMUTIL=$DSYMUTIL
- # Extract the first word of "dsymutil", so it can be a program name with args.
-set dummy dsymutil; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_DSYMUTIL+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_DSYMUTIL"; then
- ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
-if test -n "$ac_ct_DSYMUTIL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
-$as_echo "$ac_ct_DSYMUTIL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_DSYMUTIL" = x; then
- DSYMUTIL=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- DSYMUTIL=$ac_ct_DSYMUTIL
- fi
-else
- DSYMUTIL="$ac_cv_prog_DSYMUTIL"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
-set dummy ${ac_tool_prefix}nmedit; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_NMEDIT+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$NMEDIT"; then
- ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-NMEDIT=$ac_cv_prog_NMEDIT
-if test -n "$NMEDIT"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
-$as_echo "$NMEDIT" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_NMEDIT"; then
- ac_ct_NMEDIT=$NMEDIT
- # Extract the first word of "nmedit", so it can be a program name with args.
-set dummy nmedit; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_NMEDIT+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_NMEDIT"; then
- ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_NMEDIT="nmedit"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
-if test -n "$ac_ct_NMEDIT"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
-$as_echo "$ac_ct_NMEDIT" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_NMEDIT" = x; then
- NMEDIT=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- NMEDIT=$ac_ct_NMEDIT
- fi
-else
- NMEDIT="$ac_cv_prog_NMEDIT"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
-set dummy ${ac_tool_prefix}lipo; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_LIPO+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$LIPO"; then
- ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-LIPO=$ac_cv_prog_LIPO
-if test -n "$LIPO"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
-$as_echo "$LIPO" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_LIPO"; then
- ac_ct_LIPO=$LIPO
- # Extract the first word of "lipo", so it can be a program name with args.
-set dummy lipo; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_LIPO+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_LIPO"; then
- ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_LIPO="lipo"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
-if test -n "$ac_ct_LIPO"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
-$as_echo "$ac_ct_LIPO" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_LIPO" = x; then
- LIPO=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- LIPO=$ac_ct_LIPO
- fi
-else
- LIPO="$ac_cv_prog_LIPO"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
-set dummy ${ac_tool_prefix}otool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_OTOOL+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OTOOL"; then
- ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OTOOL=$ac_cv_prog_OTOOL
-if test -n "$OTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
-$as_echo "$OTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OTOOL"; then
- ac_ct_OTOOL=$OTOOL
- # Extract the first word of "otool", so it can be a program name with args.
-set dummy otool; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_OTOOL+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OTOOL"; then
- ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_OTOOL="otool"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
-if test -n "$ac_ct_OTOOL"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
-$as_echo "$ac_ct_OTOOL" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OTOOL" = x; then
- OTOOL=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OTOOL=$ac_ct_OTOOL
- fi
-else
- OTOOL="$ac_cv_prog_OTOOL"
-fi
-
- if test -n "$ac_tool_prefix"; then
- # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
-set dummy ${ac_tool_prefix}otool64; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_OTOOL64+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$OTOOL64"; then
- ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-OTOOL64=$ac_cv_prog_OTOOL64
-if test -n "$OTOOL64"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
-$as_echo "$OTOOL64" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_OTOOL64"; then
- ac_ct_OTOOL64=$OTOOL64
- # Extract the first word of "otool64", so it can be a program name with args.
-set dummy otool64; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_OTOOL64+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$ac_ct_OTOOL64"; then
- ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
- ac_cv_prog_ac_ct_OTOOL64="otool64"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
-if test -n "$ac_ct_OTOOL64"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
-$as_echo "$ac_ct_OTOOL64" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
- if test "x$ac_ct_OTOOL64" = x; then
- OTOOL64=":"
- else
- case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
- OTOOL64=$ac_ct_OTOOL64
- fi
-else
- OTOOL64="$ac_cv_prog_OTOOL64"
-fi
-
-
-
-
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- ac_cv_prog_CPP=$CPP
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- CPP=$ac_cv_prog_CPP
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- ac_cv_prog_CPP=$CPP
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
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- # Use a header file that comes with gcc, so configuring glibc
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- # On the NeXT, cc -E runs the code through the compiler's parser,
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- # OK, works on sane cases. Now check whether nonexistent headers
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-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
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-{
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-
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-
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-
-for ac_header in dlfcn.h
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-
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-
-done
-
-
-
-# Set options
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-
-
- enable_dlopen=no
-
-
- enable_win32_dll=no
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-
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-
-
-
-
-
-
-
-
-
- # Check whether --enable-static was given.
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- *)
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- fi
- done
- IFS="$lt_save_ifs"
- ;;
- esac
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- enable_static=yes
-fi
-
-
-
-
-
-
-
-
-
-
-# Check whether --with-pic was given.
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- withval=$with_pic; pic_mode="$withval"
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- pic_mode=default
-fi
-
-
-test -z "$pic_mode" && pic_mode=default
-
-
-
-
-
-
-
- # Check whether --enable-fast-install was given.
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- enableval=$enable_fast_install; p=${PACKAGE-default}
- case $enableval in
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- no) enable_fast_install=no ;;
- *)
- enable_fast_install=no
- # Look at the argument we got. We use all the common list separators.
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- IFS="$lt_save_ifs"
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- esac
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- enable_fast_install=yes
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-
-
-
-
-
-
-
-
-
-
-
-# This can be used to rebuild libtool when needed
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-
-
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-
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-
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
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-
-
-
-cat >>confdefs.h <<_ACEOF
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-# Sed substitution to delay expansion of an escaped shell variable in a
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- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
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- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
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-_LT_EOF
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- IFS="$lt_save_ifs"
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-
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
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- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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-
-
-
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-
-if test -z "$lt_cv_path_MAGIC_CMD"; then
- if test -n "$ac_tool_prefix"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
-$as_echo_n "checking for file... " >&6; }
-if test "${lt_cv_path_MAGIC_CMD+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- case $MAGIC_CMD in
-[\\/*] | ?:[\\/]*)
- lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
- ;;
-*)
- lt_save_MAGIC_CMD="$MAGIC_CMD"
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
- ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
- for ac_dir in $ac_dummy; do
- IFS="$lt_save_ifs"
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/file; then
- lt_cv_path_MAGIC_CMD="$ac_dir/file"
- if test -n "$file_magic_test_file"; then
- case $deplibs_check_method in
- "file_magic "*)
- file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
- if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
- $EGREP "$file_magic_regex" > /dev/null; then
- :
- else
- cat <<_LT_EOF 1>&2
-
-*** Warning: the command libtool uses to detect shared libraries,
-*** $file_magic_cmd, produces output that libtool cannot recognize.
-*** The result is that libtool may fail to recognize shared libraries
-*** as such. This will affect the creation of libtool libraries that
-*** depend on shared libraries, but programs linked with such libtool
-*** libraries will work regardless of this problem. Nevertheless, you
-*** may want to report the problem to your system manager and/or to
-*** bug-libtool@gnu.org
-
-_LT_EOF
- fi ;;
- esac
- fi
- break
- fi
- done
- IFS="$lt_save_ifs"
- MAGIC_CMD="$lt_save_MAGIC_CMD"
- ;;
-esac
-fi
-
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
-if test -n "$MAGIC_CMD"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
-$as_echo "$MAGIC_CMD" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- else
- MAGIC_CMD=:
- fi
-fi
-
- fi
- ;;
-esac
-
-# Use C for the default configuration in the libtool script
-
-lt_save_CC="$CC"
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-# Source file extension for C test sources.
-ac_ext=c
-
-# Object file extension for compiled C test sources.
-objext=o
-objext=$objext
-
-# Code to be used in simple compile tests
-lt_simple_compile_test_code="int some_variable = 0;"
-
-# Code to be used in simple link tests
-lt_simple_link_test_code='int main(){return(0);}'
-
-
-
-
-
-
-
-# If no C compiler was specified, use CC.
-LTCC=${LTCC-"$CC"}
-
-# If no C compiler flags were specified, use CFLAGS.
-LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
-
-# Allow CC to be a program name with arguments.
-compiler=$CC
-
-# Save the default compiler, since it gets overwritten when the other
-# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
-compiler_DEFAULT=$CC
-
-# save warnings/boilerplate of simple test code
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_compile_test_code" >conftest.$ac_ext
-eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_compiler_boilerplate=`cat conftest.err`
-$RM conftest*
-
-ac_outfile=conftest.$ac_objext
-echo "$lt_simple_link_test_code" >conftest.$ac_ext
-eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
-_lt_linker_boilerplate=`cat conftest.err`
-$RM -r conftest*
-
-
-if test -n "$compiler"; then
-
-lt_prog_compiler_no_builtin_flag=
-
-if test "$GCC" = yes; then
- lt_prog_compiler_no_builtin_flag=' -fno-builtin'
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
-$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
-if test "${lt_cv_prog_compiler_rtti_exceptions+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_rtti_exceptions=no
- ac_outfile=conftest.$ac_objext
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="-fno-rtti -fno-exceptions"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:7231: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&5
- echo "$as_me:7235: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_rtti_exceptions=yes
- fi
- fi
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
-$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
-
-if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
- lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
-else
- :
-fi
-
-fi
-
-
-
-
-
-
- lt_prog_compiler_wl=
-lt_prog_compiler_pic=
-lt_prog_compiler_static=
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
-$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
-
- if test "$GCC" = yes; then
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_static='-static'
-
- case $host_os in
- aix*)
- # All AIX code is PIC.
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- lt_prog_compiler_static='-Bstatic'
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- lt_prog_compiler_pic='-fPIC'
- ;;
- m68k)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
- lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
- ;;
- esac
- ;;
-
- beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
- # PIC is the default for these OSes.
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- # Although the cygwin gcc ignores -fPIC, still need this for old-style
- # (--disable-auto-import) libraries
- lt_prog_compiler_pic='-DDLL_EXPORT'
- ;;
-
- darwin* | rhapsody*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- lt_prog_compiler_pic='-fno-common'
- ;;
-
- hpux*)
- # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
- # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
- # sets the default TLS model and affects inlining.
- case $host_cpu in
- hppa*64*)
- # +Z the default
- ;;
- *)
- lt_prog_compiler_pic='-fPIC'
- ;;
- esac
- ;;
-
- interix[3-9]*)
- # Interix 3.x gcc -fpic/-fPIC options generate broken code.
- # Instead, we relocate shared libraries at runtime.
- ;;
-
- msdosdjgpp*)
- # Just because we use GCC doesn't mean we suddenly get shared libraries
- # on systems that don't support them.
- lt_prog_compiler_can_build_shared=no
- enable_shared=no
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- lt_prog_compiler_pic='-fPIC -shared'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- lt_prog_compiler_pic=-Kconform_pic
- fi
- ;;
-
- *)
- lt_prog_compiler_pic='-fPIC'
- ;;
- esac
- else
- # PORTME Check for flag to pass linker flags through the system compiler.
- case $host_os in
- aix*)
- lt_prog_compiler_wl='-Wl,'
- if test "$host_cpu" = ia64; then
- # AIX 5 now supports IA64 processor
- lt_prog_compiler_static='-Bstatic'
- else
- lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
- fi
- ;;
-
- mingw* | cygwin* | pw32* | os2* | cegcc*)
- # This hack is so that the source file can tell whether it is being
- # built for inclusion in a dll (and should export symbols for example).
- lt_prog_compiler_pic='-DDLL_EXPORT'
- ;;
-
- hpux9* | hpux10* | hpux11*)
- lt_prog_compiler_wl='-Wl,'
- # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
- # not for PA HP-UX.
- case $host_cpu in
- hppa*64*|ia64*)
- # +Z the default
- ;;
- *)
- lt_prog_compiler_pic='+Z'
- ;;
- esac
- # Is there a better lt_prog_compiler_static that works with the bundled CC?
- lt_prog_compiler_static='${wl}-a ${wl}archive'
- ;;
-
- irix5* | irix6* | nonstopux*)
- lt_prog_compiler_wl='-Wl,'
- # PIC (with -KPIC) is the default.
- lt_prog_compiler_static='-non_shared'
- ;;
-
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
- case $cc_basename in
- # old Intel for x86_64 which still supported -KPIC.
- ecc*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-static'
- ;;
- # icc used to be incompatible with GCC.
- # ICC 10 doesn't accept -KPIC any more.
- icc* | ifort*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fPIC'
- lt_prog_compiler_static='-static'
- ;;
- # Lahey Fortran 8.1.
- lf95*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='--shared'
- lt_prog_compiler_static='--static'
- ;;
- pgcc* | pgf77* | pgf90* | pgf95*)
- # Portland Group compilers (*not* the Pentium gcc compiler,
- # which looks to be a dead project)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-fpic'
- lt_prog_compiler_static='-Bstatic'
- ;;
- ccc*)
- lt_prog_compiler_wl='-Wl,'
- # All Alpha code is PIC.
- lt_prog_compiler_static='-non_shared'
- ;;
- xl*)
- # IBM XL C 8.0/Fortran 10.1 on PPC
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-qpic'
- lt_prog_compiler_static='-qstaticlink'
- ;;
- *)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C 5.9
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- lt_prog_compiler_wl='-Wl,'
- ;;
- *Sun\ F*)
- # Sun Fortran 8.3 passes all unrecognized flags to the linker
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- lt_prog_compiler_wl=''
- ;;
- esac
- ;;
- esac
- ;;
-
- newsos6)
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- *nto* | *qnx*)
- # QNX uses GNU C++, but need to define -shared option too, otherwise
- # it will coredump.
- lt_prog_compiler_pic='-fPIC -shared'
- ;;
-
- osf3* | osf4* | osf5*)
- lt_prog_compiler_wl='-Wl,'
- # All OSF/1 code is PIC.
- lt_prog_compiler_static='-non_shared'
- ;;
-
- rdos*)
- lt_prog_compiler_static='-non_shared'
- ;;
-
- solaris*)
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- case $cc_basename in
- f77* | f90* | f95*)
- lt_prog_compiler_wl='-Qoption ld ';;
- *)
- lt_prog_compiler_wl='-Wl,';;
- esac
- ;;
-
- sunos4*)
- lt_prog_compiler_wl='-Qoption ld '
- lt_prog_compiler_pic='-PIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- sysv4 | sysv4.2uw2* | sysv4.3*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec ;then
- lt_prog_compiler_pic='-Kconform_pic'
- lt_prog_compiler_static='-Bstatic'
- fi
- ;;
-
- sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_pic='-KPIC'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- unicos*)
- lt_prog_compiler_wl='-Wl,'
- lt_prog_compiler_can_build_shared=no
- ;;
-
- uts4*)
- lt_prog_compiler_pic='-pic'
- lt_prog_compiler_static='-Bstatic'
- ;;
-
- *)
- lt_prog_compiler_can_build_shared=no
- ;;
- esac
- fi
-
-case $host_os in
- # For platforms which do not support PIC, -DPIC is meaningless:
- *djgpp*)
- lt_prog_compiler_pic=
- ;;
- *)
- lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
- ;;
-esac
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_prog_compiler_pic" >&5
-$as_echo "$lt_prog_compiler_pic" >&6; }
-
-
-
-
-
-
-#
-# Check to make sure the PIC flag actually works.
-#
-if test -n "$lt_prog_compiler_pic"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
-$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
-if test "${lt_cv_prog_compiler_pic_works+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_pic_works=no
- ac_outfile=conftest.$ac_objext
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- # The option is referenced via a variable to avoid confusing sed.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:7570: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>conftest.err)
- ac_status=$?
- cat conftest.err >&5
- echo "$as_me:7574: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s "$ac_outfile"; then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings other than the usual output.
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' >conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_pic_works=yes
- fi
- fi
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
-$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
-
-if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
- case $lt_prog_compiler_pic in
- "" | " "*) ;;
- *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
- esac
-else
- lt_prog_compiler_pic=
- lt_prog_compiler_can_build_shared=no
-fi
-
-fi
-
-
-
-
-
-
-#
-# Check to make sure the static flag actually works.
-#
-wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
-$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
-if test "${lt_cv_prog_compiler_static_works+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_static_works=no
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
- echo "$lt_simple_link_test_code" > conftest.$ac_ext
- if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
- # The linker can only warn and ignore the option if not recognized
- # So say no if there are warnings
- if test -s conftest.err; then
- # Append any errors to the config.log.
- cat conftest.err 1>&5
- $ECHO "X$_lt_linker_boilerplate" | $Xsed -e '/^$/d' > conftest.exp
- $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
- if diff conftest.exp conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_static_works=yes
- fi
- else
- lt_cv_prog_compiler_static_works=yes
- fi
- fi
- $RM -r conftest*
- LDFLAGS="$save_LDFLAGS"
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
-$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
-
-if test x"$lt_cv_prog_compiler_static_works" = xyes; then
- :
-else
- lt_prog_compiler_static=
-fi
-
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
-$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
-if test "${lt_cv_prog_compiler_c_o+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_c_o=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
- cd conftest
- mkdir out
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- lt_compiler_flag="-o out/conftest2.$ac_objext"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
- # with a dollar sign (not a hyphen), so the echo should work correctly.
- lt_compile=`echo "$ac_compile" | $SED \
- -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:7675: $lt_compile\"" >&5)
- (eval "$lt_compile" 2>out/conftest.err)
- ac_status=$?
- cat out/conftest.err >&5
- echo "$as_me:7679: \$? = $ac_status" >&5
- if (exit $ac_status) && test -s out/conftest2.$ac_objext
- then
- # The compiler can only warn and ignore the option if not recognized
- # So say no if there are warnings
- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
- $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
- if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
- lt_cv_prog_compiler_c_o=yes
- fi
- fi
- chmod u+w . 2>&5
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
- # template instantiation
- test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
- $RM out/* && rmdir out
- cd ..
- $RM -r conftest
- $RM conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
-$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
-$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
-if test "${lt_cv_prog_compiler_c_o+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- lt_cv_prog_compiler_c_o=no
- $RM -r conftest 2>/dev/null
- mkdir conftest
- cd conftest
- mkdir out
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- lt_compiler_flag="-o out/conftest2.$ac_objext"
- # Insert the option either (1) after the last *FLAGS variable, or
- # (2) before a word containing "conftest.", or (3) at the end.
- # Note that $ac_compile itself does not contain backslashes and begins
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- -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
- -e 's:$: $lt_compiler_flag:'`
- (eval echo "\"\$as_me:7730: $lt_compile\"" >&5)
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- echo "$as_me:7734: \$? = $ac_status" >&5
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- then
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- $ECHO "X$_lt_compiler_boilerplate" | $Xsed -e '/^$/d' > out/conftest.exp
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- fi
- fi
- chmod u+w . 2>&5
- $RM conftest*
- # SGI C++ compiler will create directory out/ii_files/ for
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- test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
- $RM out/* && rmdir out
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- $RM -r conftest
- $RM conftest*
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-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
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-
-
-
-
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- $RM conftest*
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- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
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- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
-$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
- need_locks=warn
- fi
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- need_locks=no
-fi
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
-$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
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- runpath_var=
- allow_undefined_flag=
- always_export_symbols=no
- archive_cmds=
- archive_expsym_cmds=
- compiler_needs_object=no
- enable_shared_with_static_runtimes=no
- export_dynamic_flag_spec=
- export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
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- hardcode_direct=no
- hardcode_direct_absolute=no
- hardcode_libdir_flag_spec=
- hardcode_libdir_flag_spec_ld=
- hardcode_libdir_separator=
- hardcode_minus_L=no
- hardcode_shlibpath_var=unsupported
- inherit_rpath=no
- link_all_deplibs=unknown
- module_cmds=
- module_expsym_cmds=
- old_archive_from_new_cmds=
- old_archive_from_expsyms_cmds=
- thread_safe_flag_spec=
- whole_archive_flag_spec=
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- include_expsyms=
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- # it will be wrapped by ` (' and `)$', so one must not match beginning or
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- # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
- # platforms (ab)use it in PIC code, but their linkers get confused if
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- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- # FIXME: the MSVC++ port hasn't been tested in a loooong time
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- fi
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- interix*)
- # we just hope/assume this is gcc and not c89 (= MSVC++)
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- ;;
- openbsd*)
- with_gnu_ld=no
- ;;
- linux* | k*bsd*-gnu)
- link_all_deplibs=no
- ;;
- esac
-
- ld_shlibs=yes
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- # If archive_cmds runs LD, not CC, wlarc should be empty
- wlarc='${wl}'
-
- # Set some defaults for GNU ld with shared library support. These
- # are reset later if shared libraries are not supported. Putting them
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- runpath_var=LD_RUN_PATH
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- export_dynamic_flag_spec='${wl}--export-dynamic'
- # ancient GNU ld didn't support --whole-archive et. al.
- if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
- whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
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- whole_archive_flag_spec=
- fi
- supports_anon_versioning=no
- case `$LD -v 2>&1` in
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- *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
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- *) supports_anon_versioning=yes ;;
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-
- # See if GNU ld supports shared libraries.
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- # On AIX/PPC, the GNU linker is very broken
- if test "$host_cpu" != ia64; then
- ld_shlibs=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: the GNU linker, at least up to release 2.9.1, is reported
-*** to be unable to reliably create shared libraries on AIX.
-*** Therefore, libtool is disabling shared libraries support. If you
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-*** so that a non-GNU linker is found, and then restart.
-
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- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds=''
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- m68k)
- archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- ;;
- esac
- ;;
-
- beos*)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- allow_undefined_flag=unsupported
- # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
- # support --undefined. This deserves some investigation. FIXME
- archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
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- ld_shlibs=no
- fi
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
- # as there is no search path for DLLs.
- hardcode_libdir_flag_spec='-L$libdir'
- allow_undefined_flag=unsupported
- always_export_symbols=no
- enable_shared_with_static_runtimes=yes
- export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
-
- if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- else
- ld_shlibs=no
- fi
- ;;
-
- interix[3-9]*)
- hardcode_direct=no
- hardcode_shlibpath_var=no
- hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
- export_dynamic_flag_spec='${wl}-E'
- # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
- # Instead, shared libraries are loaded at an image base (0x10000000 by
- # default) and relocated if they conflict, which is a slow very memory
- # consuming and fragmenting process. To avoid this, we pick a random,
- # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
- # time. Moving up from 0x10000000 also allows more sbrk(2) space.
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- ;;
-
- gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
- tmp_diet=no
- if test "$host_os" = linux-dietlibc; then
- case $cc_basename in
- diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
- esac
- fi
- if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test "$tmp_diet" = no
- then
- tmp_addflag=
- tmp_sharedflag='-shared'
- case $cc_basename,$host_cpu in
- pgcc*) # Portland Group C compiler
- whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- tmp_addflag=' $pic_flag'
- ;;
- pgf77* | pgf90* | pgf95*) # Portland Group f77 and f90 compilers
- whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- tmp_addflag=' $pic_flag -Mnomain' ;;
- ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
- tmp_addflag=' -i_dynamic' ;;
- efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
- tmp_addflag=' -i_dynamic -nofor_main' ;;
- ifc* | ifort*) # Intel Fortran compiler
- tmp_addflag=' -nofor_main' ;;
- lf95*) # Lahey Fortran 8.1
- whole_archive_flag_spec=
- tmp_sharedflag='--shared' ;;
- xl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
- tmp_sharedflag='-qmkshrobj'
- tmp_addflag= ;;
- esac
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*) # Sun C 5.9
- whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; $ECHO \"$new_convenience\"` ${wl}--no-whole-archive'
- compiler_needs_object=yes
- tmp_sharedflag='-G' ;;
- *Sun\ F*) # Sun Fortran 8.3
- tmp_sharedflag='-G' ;;
- esac
- archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-
- if test "x$supports_anon_versioning" = xyes; then
- archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
- fi
-
- case $cc_basename in
- xlf*)
- # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
- whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
- hardcode_libdir_flag_spec=
- hardcode_libdir_flag_spec_ld='-rpath $libdir'
- archive_cmds='$LD -shared $libobjs $deplibs $compiler_flags -soname $soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
- archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $compiler_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
- fi
- ;;
- esac
- else
- ld_shlibs=no
- fi
- ;;
-
- netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
- wlarc=
- else
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- fi
- ;;
-
- solaris*)
- if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
- ld_shlibs=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: The releases 2.8.* of the GNU linker cannot reliably
-*** create shared libraries on Solaris systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.9.1 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
- case `$LD -v 2>&1` in
- *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
- ld_shlibs=no
- cat <<_LT_EOF 1>&2
-
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
-*** reliably create shared libraries on SCO systems. Therefore, libtool
-*** is disabling shared libraries support. We urge you to upgrade GNU
-*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
-*** your PATH or compiler configuration so that the native linker is
-*** used, and then restart.
-
-_LT_EOF
- ;;
- *)
- # For security reasons, it is highly recommended that you always
- # use absolute paths for naming shared libraries, and exclude the
- # DT_RUNPATH tag from executables and libraries. But doing so
- # requires that you compile everything twice, which is a pain.
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
- esac
- ;;
-
- sunos4*)
- archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- wlarc=
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- *)
- if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
- else
- ld_shlibs=no
- fi
- ;;
- esac
-
- if test "$ld_shlibs" = no; then
- runpath_var=
- hardcode_libdir_flag_spec=
- export_dynamic_flag_spec=
- whole_archive_flag_spec=
- fi
- else
- # PORTME fill in a description of your system's linker (not GNU ld)
- case $host_os in
- aix3*)
- allow_undefined_flag=unsupported
- always_export_symbols=yes
- archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
- # Note: this linker hardcodes the directories in LIBPATH if there
- # are no directories specified by -L.
- hardcode_minus_L=yes
- if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
- # Neither direct hardcoding nor static linking is supported with a
- # broken collect2.
- hardcode_direct=unsupported
- fi
- ;;
-
- aix[4-9]*)
- if test "$host_cpu" = ia64; then
- # On IA64, the linker does run time linking by default, so we don't
- # have to do anything special.
- aix_use_runtimelinking=no
- exp_sym_flag='-Bexport'
- no_entry_flag=""
- else
- # If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- else
- export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
- fi
- aix_use_runtimelinking=no
-
- # Test if we are trying to use run time linking or normal
- # AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
- case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
- for ld_flag in $LDFLAGS; do
- if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
- aix_use_runtimelinking=yes
- break
- fi
- done
- ;;
- esac
-
- exp_sym_flag='-bexport'
- no_entry_flag='-bnoentry'
- fi
-
- # When large executables or shared objects are built, AIX ld can
- # have problems creating the table of contents. If linking a library
- # or program results in "error TOC overflow" add -mminimal-toc to
- # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
- # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
-
- archive_cmds=''
- hardcode_direct=yes
- hardcode_direct_absolute=yes
- hardcode_libdir_separator=':'
- link_all_deplibs=yes
- file_list_spec='${wl}-f,'
-
- if test "$GCC" = yes; then
- case $host_os in aix4.[012]|aix4.[012].*)
- # We only want to do this on AIX 4.2 and lower, the check
- # below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
- if test -f "$collect2name" &&
- strings "$collect2name" | $GREP resolve_lib_name >/dev/null
- then
- # We have reworked collect2
- :
- else
- # We have old collect2
- hardcode_direct=unsupported
- # It fails to find uninstalled libraries when the uninstalled
- # path is not listed in the libpath. Setting hardcode_minus_L
- # to unsupported forces relinking
- hardcode_minus_L=yes
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_libdir_separator=
- fi
- ;;
- esac
- shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
- fi
- link_all_deplibs=no
- else
- # not using gcc
- if test "$host_cpu" = ia64; then
- # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
- # chokes on -Wl,-G. The following line is correct:
- shared_flag='-G'
- else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
- else
- shared_flag='${wl}-bM:SRE'
- fi
- fi
- fi
-
- export_dynamic_flag_spec='${wl}-bexpall'
- # It seems that -bexpall does not export symbols beginning with
- # underscore (_), so it is better to generate a list of symbols to export.
- always_export_symbols=yes
- if test "$aix_use_runtimelinking" = yes; then
- # Warning - without using the other runtime loading flags (-brtl),
- # -berok will link without error, but may produce a broken library.
- allow_undefined_flag='-berok'
- # Determine the default libpath from the value encoded in an
- # empty executable.
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-lt_aix_libpath_sed='
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\(.*\)$/\1/
- p
- }
- }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
- aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-
- hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
- archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then $ECHO "X${wl}${allow_undefined_flag}" | $Xsed; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
- else
- if test "$host_cpu" = ia64; then
- hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
- allow_undefined_flag="-z nodefs"
- archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
- else
- # Determine the default libpath from the value encoded in an
- # empty executable.
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-lt_aix_libpath_sed='
- /Import File Strings/,/^$/ {
- /^0/ {
- s/^0 *\(.*\)$/\1/
- p
- }
- }'
-aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-# Check for a 64-bit object if we didn't find anything.
-if test -z "$aix_libpath"; then
- aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
-
- hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
- # Warning - without using the other run time loading flags,
- # -berok will link without error, but may produce a broken library.
- no_undefined_flag=' ${wl}-bernotok'
- allow_undefined_flag=' ${wl}-berok'
- # Exported symbols can be pulled into shared objects from archives
- whole_archive_flag_spec='$convenience'
- archive_cmds_need_lc=yes
- # This is similar to how AIX traditionally builds its shared libraries.
- archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
- fi
- fi
- ;;
-
- amigaos*)
- case $host_cpu in
- powerpc)
- # see comment about AmigaOS4 .so support
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds=''
- ;;
- m68k)
- archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- ;;
- esac
- ;;
-
- bsdi[45]*)
- export_dynamic_flag_spec=-rdynamic
- ;;
-
- cygwin* | mingw* | pw32* | cegcc*)
- # When not using gcc, we currently assume that we are using
- # Microsoft Visual C++.
- # hardcode_libdir_flag_spec is actually meaningless, as there is
- # no search path for DLLs.
- hardcode_libdir_flag_spec=' '
- allow_undefined_flag=unsupported
- # Tell ltmain to make .lib files, not .a files.
- libext=lib
- # Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
- # FIXME: Setting linknames here is a bad hack.
- archive_cmds='$CC -o $lib $libobjs $compiler_flags `$ECHO "X$deplibs" | $Xsed -e '\''s/ -lc$//'\''` -link -dll~linknames='
- # The linker will automatically build a .lib file if we build a DLL.
- old_archive_from_new_cmds='true'
- # FIXME: Should let the user specify the lib program.
- old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
- fix_srcfile_path='`cygpath -w "$srcfile"`'
- enable_shared_with_static_runtimes=yes
- ;;
-
- darwin* | rhapsody*)
-
-
- archive_cmds_need_lc=no
- hardcode_direct=no
- hardcode_automatic=yes
- hardcode_shlibpath_var=unsupported
- whole_archive_flag_spec=''
- link_all_deplibs=yes
- allow_undefined_flag="$_lt_dar_allow_undefined"
- case $cc_basename in
- ifort*) _lt_dar_can_shared=yes ;;
- *) _lt_dar_can_shared=$GCC ;;
- esac
- if test "$_lt_dar_can_shared" = "yes"; then
- output_verbose_link_cmd=echo
- archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
- module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
- archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
- module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
-
- else
- ld_shlibs=no
- fi
-
- ;;
-
- dgux*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_shlibpath_var=no
- ;;
-
- freebsd1*)
- ld_shlibs=no
- ;;
-
- # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
- # support. Future versions do this automatically, but an explicit c++rt0.o
- # does not break anything, and helps significantly (at the cost of a little
- # extra space).
- freebsd2.2*)
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- # Unfortunately, older versions of FreeBSD 2 do not have this feature.
- freebsd2*)
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=yes
- hardcode_minus_L=yes
- hardcode_shlibpath_var=no
- ;;
-
- # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
- freebsd* | dragonfly*)
- archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- hpux9*)
- if test "$GCC" = yes; then
- archive_cmds='$RM $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- else
- archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
- fi
- hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
- hardcode_libdir_separator=:
- hardcode_direct=yes
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- hardcode_minus_L=yes
- export_dynamic_flag_spec='${wl}-E'
- ;;
-
- hpux10*)
- if test "$GCC" = yes -a "$with_gnu_ld" = no; then
- archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
- fi
- if test "$with_gnu_ld" = no; then
- hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
- hardcode_libdir_flag_spec_ld='+b $libdir'
- hardcode_libdir_separator=:
- hardcode_direct=yes
- hardcode_direct_absolute=yes
- export_dynamic_flag_spec='${wl}-E'
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- hardcode_minus_L=yes
- fi
- ;;
-
- hpux11*)
- if test "$GCC" = yes -a "$with_gnu_ld" = no; then
- case $host_cpu in
- hppa*64*)
- archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- else
- case $host_cpu in
- hppa*64*)
- archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- ia64*)
- archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- *)
- archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
- ;;
- esac
- fi
- if test "$with_gnu_ld" = no; then
- hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
- hardcode_libdir_separator=:
-
- case $host_cpu in
- hppa*64*|ia64*)
- hardcode_direct=no
- hardcode_shlibpath_var=no
- ;;
- *)
- hardcode_direct=yes
- hardcode_direct_absolute=yes
- export_dynamic_flag_spec='${wl}-E'
-
- # hardcode_minus_L: Not really in the search PATH,
- # but as the default location of the library.
- hardcode_minus_L=yes
- ;;
- esac
- fi
- ;;
-
- irix5* | irix6* | nonstopux*)
- if test "$GCC" = yes; then
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- # Try to use the -exported_symbol ld option, if it does not
- # work, assume that -exports_file does not work either and
- # implicitly export all symbols.
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-int foo(void) {}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
-
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- LDFLAGS="$save_LDFLAGS"
- else
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
- fi
- archive_cmds_need_lc='no'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- hardcode_libdir_separator=:
- inherit_rpath=yes
- link_all_deplibs=yes
- ;;
-
- netbsd* | netbsdelf*-gnu)
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
- else
- archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
- fi
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- ;;
-
- newsos6)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=yes
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- hardcode_libdir_separator=:
- hardcode_shlibpath_var=no
- ;;
-
- *nto* | *qnx*)
- ;;
-
- openbsd*)
- if test -f /usr/libexec/ld.so; then
- hardcode_direct=yes
- hardcode_shlibpath_var=no
- hardcode_direct_absolute=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
- hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
- export_dynamic_flag_spec='${wl}-E'
- else
- case $host_os in
- openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- hardcode_libdir_flag_spec='-R$libdir'
- ;;
- *)
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
- ;;
- esac
- fi
- else
- ld_shlibs=no
- fi
- ;;
-
- os2*)
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_minus_L=yes
- allow_undefined_flag=unsupported
- archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$ECHO DATA >> $output_objdir/$libname.def~$ECHO " SINGLE NONSHARED" >> $output_objdir/$libname.def~$ECHO EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
- old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
- ;;
-
- osf3*)
- if test "$GCC" = yes; then
- allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- else
- allow_undefined_flag=' -expect_unresolved \*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- fi
- archive_cmds_need_lc='no'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- hardcode_libdir_separator=:
- ;;
-
- osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test "$GCC" = yes; then
- allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && $ECHO "X${wl}-set_version ${wl}$verstring" | $Xsed` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- else
- allow_undefined_flag=' -expect_unresolved \*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib'
- archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "X-set_version $verstring" | $Xsed` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
-
- # Both c and cxx compiler support -rpath directly
- hardcode_libdir_flag_spec='-rpath $libdir'
- fi
- archive_cmds_need_lc='no'
- hardcode_libdir_separator=:
- ;;
-
- solaris*)
- no_undefined_flag=' -z defs'
- if test "$GCC" = yes; then
- wlarc='${wl}'
- archive_cmds='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- else
- case `$CC -V 2>&1` in
- *"Compilers 5.0"*)
- wlarc=''
- archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
- archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
- ;;
- *)
- wlarc='${wl}'
- archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
- ;;
- esac
- fi
- hardcode_libdir_flag_spec='-R$libdir'
- hardcode_shlibpath_var=no
- case $host_os in
- solaris2.[0-5] | solaris2.[0-5].*) ;;
- *)
- # The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'. GCC discards it without `$wl',
- # but is careful enough not to reorder.
- # Supported since Solaris 2.6 (maybe 2.5.1?)
- if test "$GCC" = yes; then
- whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
- else
- whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
- fi
- ;;
- esac
- link_all_deplibs=yes
- ;;
-
- sunos4*)
- if test "x$host_vendor" = xsequent; then
- # Use $CC to link under sequent, because it throws in some extra .o
- # files that make .init and .fini sections work.
- archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
- fi
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_direct=yes
- hardcode_minus_L=yes
- hardcode_shlibpath_var=no
- ;;
-
- sysv4)
- case $host_vendor in
- sni)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=yes # is this really true???
- ;;
- siemens)
- ## LD is ld it makes a PLAMLIB
- ## CC just makes a GrossModule.
- archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
- reload_cmds='$CC -r -o $output$reload_objs'
- hardcode_direct=no
- ;;
- motorola)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_direct=no #Motorola manual says yes, but my tests say they lie
- ;;
- esac
- runpath_var='LD_RUN_PATH'
- hardcode_shlibpath_var=no
- ;;
-
- sysv4.3*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_shlibpath_var=no
- export_dynamic_flag_spec='-Bexport'
- ;;
-
- sysv4*MP*)
- if test -d /usr/nec; then
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_shlibpath_var=no
- runpath_var=LD_RUN_PATH
- hardcode_runpath_var=yes
- ld_shlibs=yes
- fi
- ;;
-
- sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
- no_undefined_flag='${wl}-z,text'
- archive_cmds_need_lc=no
- hardcode_shlibpath_var=no
- runpath_var='LD_RUN_PATH'
-
- if test "$GCC" = yes; then
- archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
- # link with -lc, and that would cause any symbols used from libc to
- # always be unresolved, which means just about no library would
- # ever link correctly. If we're not using GNU ld we use -z text
- # though, which does catch some bad symbols but isn't as heavy-handed
- # as -z defs.
- no_undefined_flag='${wl}-z,text'
- allow_undefined_flag='${wl}-z,nodefs'
- archive_cmds_need_lc=no
- hardcode_shlibpath_var=no
- hardcode_libdir_flag_spec='${wl}-R,$libdir'
- hardcode_libdir_separator=':'
- link_all_deplibs=yes
- export_dynamic_flag_spec='${wl}-Bexport'
- runpath_var='LD_RUN_PATH'
-
- if test "$GCC" = yes; then
- archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- else
- archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- fi
- ;;
-
- uts4*)
- archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
- hardcode_libdir_flag_spec='-L$libdir'
- hardcode_shlibpath_var=no
- ;;
-
- *)
- ld_shlibs=no
- ;;
- esac
-
- if test x$host_vendor = xsni; then
- case $host in
- sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- export_dynamic_flag_spec='${wl}-Blargedynsym'
- ;;
- esac
- fi
- fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
-$as_echo "$ld_shlibs" >&6; }
-test "$ld_shlibs" = no && can_build_shared=no
-
-with_gnu_ld=$with_gnu_ld
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#
-# Do we need to explicitly link libc?
-#
-case "x$archive_cmds_need_lc" in
-x|xyes)
- # Assume -lc should be added
- archive_cmds_need_lc=yes
-
- if test "$enable_shared" = yes && test "$GCC" = yes; then
- case $archive_cmds in
- *'~'*)
- # FIXME: we may have to deal with multi-command sequences.
- ;;
- '$CC '*)
- # Test whether the compiler implicitly links with -lc since on some
- # systems, -lgcc has to come before -lc. If gcc already passes -lc
- # to ld, don't add -lc before -lgcc.
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
-$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
- $RM conftest*
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
- (eval $ac_compile) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } 2>conftest.err; then
- soname=conftest
- lib=conftest
- libobjs=conftest.$ac_objext
- deplibs=
- wl=$lt_prog_compiler_wl
- pic_flag=$lt_prog_compiler_pic
- compiler_flags=-v
- linker_flags=-v
- verstring=
- output_objdir=.
- libname=conftest
- lt_save_allow_undefined_flag=$allow_undefined_flag
- allow_undefined_flag=
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
- (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }
- then
- archive_cmds_need_lc=no
- else
- archive_cmds_need_lc=yes
- fi
- allow_undefined_flag=$lt_save_allow_undefined_flag
- else
- cat conftest.err 1>&5
- fi
- $RM conftest*
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $archive_cmds_need_lc" >&5
-$as_echo "$archive_cmds_need_lc" >&6; }
- ;;
- esac
- fi
- ;;
-esac
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
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-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
-$as_echo_n "checking dynamic linker characteristics... " >&6; }
-
-if test "$GCC" = yes; then
- case $host_os in
- darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
- *) lt_awk_arg="/^libraries:/" ;;
- esac
- lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e "s,=/,/,g"`
- if $ECHO "$lt_search_path_spec" | $GREP ';' >/dev/null ; then
- # if the path contains ";" then we assume it to be the separator
- # otherwise default to the standard path separator (i.e. ":") - it is
- # assumed that no part of a normal pathname contains ";" but that should
- # okay in the real world where ";" in dirpaths is itself problematic.
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e 's/;/ /g'`
- else
- lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- # Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary.
- lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
- for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path/$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
- else
- test -d "$lt_sys_path" && \
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
- fi
- done
- lt_search_path_spec=`$ECHO $lt_tmp_lt_search_path_spec | awk '
-BEGIN {RS=" "; FS="/|\n";} {
- lt_foo="";
- lt_count=0;
- for (lt_i = NF; lt_i > 0; lt_i--) {
- if ($lt_i != "" && $lt_i != ".") {
- if ($lt_i == "..") {
- lt_count++;
- } else {
- if (lt_count == 0) {
- lt_foo="/" $lt_i lt_foo;
- } else {
- lt_count--;
- }
- }
- }
- }
- if (lt_foo != "") { lt_freq[lt_foo]++; }
- if (lt_freq[lt_foo] == 1) { print lt_foo; }
-}'`
- sys_lib_search_path_spec=`$ECHO $lt_search_path_spec`
-else
- sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
-fi
-library_names_spec=
-libname_spec='lib$name'
-soname_spec=
-shrext_cmds=".so"
-postinstall_cmds=
-postuninstall_cmds=
-finish_cmds=
-finish_eval=
-shlibpath_var=
-shlibpath_overrides_runpath=unknown
-version_type=none
-dynamic_linker="$host_os ld.so"
-sys_lib_dlsearch_path_spec="/lib /usr/lib"
-need_lib_prefix=unknown
-hardcode_into_libs=no
-
-# when you set need_version to no, make sure it does not cause -set_version
-# flags to be left without arguments
-need_version=unknown
-
-case $host_os in
-aix3*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
- shlibpath_var=LIBPATH
-
- # AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='${libname}${release}${shared_ext}$major'
- ;;
-
-aix[4-9]*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- hardcode_into_libs=yes
- if test "$host_cpu" = ia64; then
- # AIX 5 supports IA64
- library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- else
- # With GCC up to 2.95.x, collect2 would create an import file
- # for dependence libraries. The import file would start with
- # the line `#! .'. This would cause the generated library to
- # depend on `.', always an invalid library. This was fixed in
- # development snapshots of GCC prior to 3.0.
- case $host_os in
- aix4 | aix4.[01] | aix4.[01].*)
- if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
- echo ' yes '
- echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
- :
- else
- can_build_shared=no
- fi
- ;;
- esac
- # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
- # soname into executable. Probably we can add versioning support to
- # collect2, so additional links can be useful in future.
- if test "$aix_use_runtimelinking" = yes; then
- # If using run time linking (on AIX 4.2 or later) use lib<name>.so
- # instead of lib<name>.a to let people know that these are not
- # typical AIX shared libraries.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- else
- # We preserve .a as extension for shared libraries through AIX4.2
- # and later when we are not doing run time linking.
- library_names_spec='${libname}${release}.a $libname.a'
- soname_spec='${libname}${release}${shared_ext}$major'
- fi
- shlibpath_var=LIBPATH
- fi
- ;;
-
-amigaos*)
- case $host_cpu in
- powerpc)
- # Since July 2007 AmigaOS4 officially supports .so libraries.
- # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- ;;
- m68k)
- library_names_spec='$libname.ixlibrary $libname.a'
- # Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$ECHO "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
- ;;
- esac
- ;;
-
-beos*)
- library_names_spec='${libname}${shared_ext}'
- dynamic_linker="$host_os ld.so"
- shlibpath_var=LIBRARY_PATH
- ;;
-
-bsdi[45]*)
- version_type=linux
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
- sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
- # the default ld.so.conf also contains /usr/contrib/lib and
- # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
- # libtool to hard-code these into programs
- ;;
-
-cygwin* | mingw* | pw32* | cegcc*)
- version_type=windows
- shrext_cmds=".dll"
- need_version=no
- need_lib_prefix=no
-
- case $GCC,$host_os in
- yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
- library_names_spec='$libname.dll.a'
- # DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
- dldir=$destdir/`dirname \$dlpath`~
- test -d \$dldir || mkdir -p \$dldir~
- $install_prog $dir/$dlname \$dldir/$dlname~
- chmod a+x \$dldir/$dlname~
- if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
- eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
- fi'
- postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
- dlpath=$dir/\$dldll~
- $RM \$dlpath'
- shlibpath_overrides_runpath=yes
-
- case $host_os in
- cygwin*)
- # Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
- sys_lib_search_path_spec="/usr/lib /lib/w32api /lib /usr/local/lib"
- ;;
- mingw* | cegcc*)
- # MinGW DLLs use traditional 'lib' prefix
- soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
- sys_lib_search_path_spec=`$CC -print-search-dirs | $GREP "^libraries:" | $SED -e "s/^libraries://" -e "s,=/,/,g"`
- if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
- # It is most probably a Windows format PATH printed by
- # mingw gcc, but we are running on Cygwin. Gcc prints its search
- # path with ; separators, and with drive letters. We can handle the
- # drive letters (cygwin fileutils understands them), so leave them,
- # especially as we might pass files found there to a mingw objdump,
- # which wouldn't understand a cygwinified path. Ahh.
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
- else
- sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
- fi
- ;;
- pw32*)
- # pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
- ;;
- esac
- ;;
-
- *)
- library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
- ;;
- esac
- dynamic_linker='Win32 ld.exe'
- # FIXME: first we should search . and the directory the executable is in
- shlibpath_var=PATH
- ;;
-
-darwin* | rhapsody*)
- dynamic_linker="$host_os dyld"
- version_type=darwin
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
- soname_spec='${libname}${release}${major}$shared_ext'
- shlibpath_overrides_runpath=yes
- shlibpath_var=DYLD_LIBRARY_PATH
- shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
-
- sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
- sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
- ;;
-
-dgux*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-freebsd1*)
- dynamic_linker=no
- ;;
-
-freebsd* | dragonfly*)
- # DragonFly does not have aout. When/if they implement a new
- # versioning mechanism, adjust this.
- if test -x /usr/bin/objformat; then
- objformat=`/usr/bin/objformat`
- else
- case $host_os in
- freebsd[123]*) objformat=aout ;;
- *) objformat=elf ;;
- esac
- fi
- version_type=freebsd-$objformat
- case $version_type in
- freebsd-elf*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- need_version=no
- need_lib_prefix=no
- ;;
- freebsd-*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
- need_version=yes
- ;;
- esac
- shlibpath_var=LD_LIBRARY_PATH
- case $host_os in
- freebsd2*)
- shlibpath_overrides_runpath=yes
- ;;
- freebsd3.[01]* | freebsdelf3.[01]*)
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
- freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
- *) # from 4.6 on, and DragonFly
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
- esac
- ;;
-
-gnu*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- hardcode_into_libs=yes
- ;;
-
-hpux9* | hpux10* | hpux11*)
- # Give a soname corresponding to the major version so that dld.sl refuses to
- # link against other versions.
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- case $host_cpu in
- ia64*)
- shrext_cmds='.so'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.so"
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- if test "X$HPUX_IA64_MODE" = X32; then
- sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
- else
- sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
- fi
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- hppa*64*)
- shrext_cmds='.sl'
- hardcode_into_libs=yes
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
- shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
- ;;
- *)
- shrext_cmds='.sl'
- dynamic_linker="$host_os dld.sl"
- shlibpath_var=SHLIB_PATH
- shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- ;;
- esac
- # HP-UX runs *really* slowly unless shared libraries are mode 555.
- postinstall_cmds='chmod 555 $lib'
- ;;
-
-interix[3-9]*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-irix5* | irix6* | nonstopux*)
- case $host_os in
- nonstopux*) version_type=nonstopux ;;
- *)
- if test "$lt_cv_prog_gnu_ld" = yes; then
- version_type=linux
- else
- version_type=irix
- fi ;;
- esac
- need_lib_prefix=no
- need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
- case $host_os in
- irix5* | nonstopux*)
- libsuff= shlibsuff=
- ;;
- *)
- case $LD in # libtool.m4 will add one of these switches to LD
- *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
- libsuff= shlibsuff= libmagic=32-bit;;
- *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
- libsuff=32 shlibsuff=N32 libmagic=N32;;
- *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
- libsuff=64 shlibsuff=64 libmagic=64-bit;;
- *) libsuff= shlibsuff= libmagic=never-match;;
- esac
- ;;
- esac
- shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
- sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
- hardcode_into_libs=yes
- ;;
-
-# No shared lib support for Linux oldld, aout, or coff.
-linux*oldld* | linux*aout* | linux*coff*)
- dynamic_linker=no
- ;;
-
-# This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- # Some binutils ld are patched to set DT_RUNPATH
- save_LDFLAGS=$LDFLAGS
- save_libdir=$libdir
- eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
- LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
- shlibpath_overrides_runpath=yes
-fi
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- LDFLAGS=$save_LDFLAGS
- libdir=$save_libdir
-
- # This implies no fast_install, which is unacceptable.
- # Some rework will be needed to allow for fast_install
- # before this can be enabled.
- hardcode_into_libs=yes
-
- # Append ld.so.conf contents to the search path
- if test -f /etc/ld.so.conf; then
- lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;/^$/d' | tr '\n' ' '`
- sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
- fi
-
- # We used to test for /lib/ld.so.1 and disable shared libraries on
- # powerpc, because MkLinux only supported shared libraries with the
- # GNU dynamic linker. Since this was broken with cross compilers,
- # most powerpc-linux boxes support dynamic linking these days and
- # people can always --disable-shared, the test was removed, and we
- # assume the GNU/Linux dynamic linker is in use.
- dynamic_linker='GNU/Linux ld.so'
- ;;
-
-netbsdelf*-gnu)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='NetBSD ld.elf_so'
- ;;
-
-netbsd*)
- version_type=sunos
- need_lib_prefix=no
- need_version=no
- if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- dynamic_linker='NetBSD (a.out) ld.so'
- else
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- dynamic_linker='NetBSD ld.elf_so'
- fi
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- ;;
-
-newsos6)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- ;;
-
-*nto* | *qnx*)
- version_type=qnx
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- dynamic_linker='ldqnx.so'
- ;;
-
-openbsd*)
- version_type=sunos
- sys_lib_dlsearch_path_spec="/usr/lib"
- need_lib_prefix=no
- # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
- case $host_os in
- openbsd3.3 | openbsd3.3.*) need_version=yes ;;
- *) need_version=no ;;
- esac
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- case $host_os in
- openbsd2.[89] | openbsd2.[89].*)
- shlibpath_overrides_runpath=no
- ;;
- *)
- shlibpath_overrides_runpath=yes
- ;;
- esac
- else
- shlibpath_overrides_runpath=yes
- fi
- ;;
-
-os2*)
- libname_spec='$name'
- shrext_cmds=".dll"
- need_lib_prefix=no
- library_names_spec='$libname${shared_ext} $libname.a'
- dynamic_linker='OS/2 ld.exe'
- shlibpath_var=LIBPATH
- ;;
-
-osf3* | osf4* | osf5*)
- version_type=osf
- need_lib_prefix=no
- need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
- ;;
-
-rdos*)
- dynamic_linker=no
- ;;
-
-solaris*)
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- # ldd complains unless libraries are executable
- postinstall_cmds='chmod +x $lib'
- ;;
-
-sunos4*)
- version_type=sunos
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- if test "$with_gnu_ld" = yes; then
- need_lib_prefix=no
- fi
- need_version=yes
- ;;
-
-sysv4 | sysv4.3*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- case $host_vendor in
- sni)
- shlibpath_overrides_runpath=no
- need_lib_prefix=no
- runpath_var=LD_RUN_PATH
- ;;
- siemens)
- need_lib_prefix=no
- ;;
- motorola)
- need_lib_prefix=no
- need_version=no
- shlibpath_overrides_runpath=no
- sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
- ;;
- esac
- ;;
-
-sysv4*MP*)
- if test -d /usr/nec ;then
- version_type=linux
- library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
- soname_spec='$libname${shared_ext}.$major'
- shlibpath_var=LD_LIBRARY_PATH
- fi
- ;;
-
-sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=freebsd-elf
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=yes
- hardcode_into_libs=yes
- if test "$with_gnu_ld" = yes; then
- sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
- else
- sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
- case $host_os in
- sco3.2v5*)
- sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
- ;;
- esac
- fi
- sys_lib_dlsearch_path_spec='/usr/lib'
- ;;
-
-tpf*)
- # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
- version_type=linux
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
-uts4*)
- version_type=linux
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- ;;
-
-*)
- dynamic_linker=no
- ;;
-esac
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
-$as_echo "$dynamic_linker" >&6; }
-test "$dynamic_linker" = no && can_build_shared=no
-
-variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
- variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
-fi
-
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
- sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
-fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
- sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
-$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
-hardcode_action=
-if test -n "$hardcode_libdir_flag_spec" ||
- test -n "$runpath_var" ||
- test "X$hardcode_automatic" = "Xyes" ; then
-
- # We can hardcode non-existent directories.
- if test "$hardcode_direct" != no &&
- # If the only mechanism to avoid hardcoding is shlibpath_var, we
- # have to relink, otherwise we might link with an installed library
- # when we should be linking with a yet-to-be-installed one
- ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
- test "$hardcode_minus_L" != no; then
- # Linking always hardcodes the temporary library directory.
- hardcode_action=relink
- else
- # We can link without hardcoding, and we can hardcode nonexisting dirs.
- hardcode_action=immediate
- fi
-else
- # We cannot hardcode anything, or else we can only hardcode existing
- # directories.
- hardcode_action=unsupported
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
-$as_echo "$hardcode_action" >&6; }
-
-if test "$hardcode_action" = relink ||
- test "$inherit_rpath" = yes; then
- # Fast installation is not supported
- enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
- test "$enable_shared" = no; then
- # Fast installation is not necessary
- enable_fast_install=needless
-fi
-
-
-
-
-
-
- if test "x$enable_dlopen" != xyes; then
- enable_dlopen=unknown
- enable_dlopen_self=unknown
- enable_dlopen_self_static=unknown
-else
- lt_cv_dlopen=no
- lt_cv_dlopen_libs=
-
- case $host_os in
- beos*)
- lt_cv_dlopen="load_add_on"
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
- ;;
-
- mingw* | pw32* | cegcc*)
- lt_cv_dlopen="LoadLibrary"
- lt_cv_dlopen_libs=
- ;;
-
- cygwin*)
- lt_cv_dlopen="dlopen"
- lt_cv_dlopen_libs=
- ;;
-
- darwin*)
- # if libdl is installed we need to link against it
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-$as_echo_n "checking for dlopen in -ldl... " >&6; }
-if test "${ac_cv_lib_dl_dlopen+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dl_dlopen=yes
-else
- ac_cv_lib_dl_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = x""yes; then :
- lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
-else
-
- lt_cv_dlopen="dyld"
- lt_cv_dlopen_libs=
- lt_cv_dlopen_self=yes
-
-fi
-
- ;;
-
- *)
- ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
-if test "x$ac_cv_func_shl_load" = x""yes; then :
- lt_cv_dlopen="shl_load"
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
-$as_echo_n "checking for shl_load in -ldld... " >&6; }
-if test "${ac_cv_lib_dld_shl_load+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldld $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char shl_load ();
-int
-main ()
-{
-return shl_load ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dld_shl_load=yes
-else
- ac_cv_lib_dld_shl_load=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
-$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
-if test "x$ac_cv_lib_dld_shl_load" = x""yes; then :
- lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
-else
- ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
-if test "x$ac_cv_func_dlopen" = x""yes; then :
- lt_cv_dlopen="dlopen"
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-$as_echo_n "checking for dlopen in -ldl... " >&6; }
-if test "${ac_cv_lib_dl_dlopen+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dl_dlopen=yes
-else
- ac_cv_lib_dl_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = x""yes; then :
- lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
-$as_echo_n "checking for dlopen in -lsvld... " >&6; }
-if test "${ac_cv_lib_svld_dlopen+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lsvld $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dlopen ();
-int
-main ()
-{
-return dlopen ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_svld_dlopen=yes
-else
- ac_cv_lib_svld_dlopen=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
-$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
-if test "x$ac_cv_lib_svld_dlopen" = x""yes; then :
- lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
-$as_echo_n "checking for dld_link in -ldld... " >&6; }
-if test "${ac_cv_lib_dld_dld_link+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldld $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char dld_link ();
-int
-main ()
-{
-return dld_link ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_dld_dld_link=yes
-else
- ac_cv_lib_dld_dld_link=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
-$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
-if test "x$ac_cv_lib_dld_dld_link" = x""yes; then :
- lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
-
-fi
-
- ;;
- esac
-
- if test "x$lt_cv_dlopen" != xno; then
- enable_dlopen=yes
- else
- enable_dlopen=no
- fi
-
- case $lt_cv_dlopen in
- dlopen)
- save_CPPFLAGS="$CPPFLAGS"
- test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
-
- save_LDFLAGS="$LDFLAGS"
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
-
- save_LIBS="$LIBS"
- LIBS="$lt_cv_dlopen_libs $LIBS"
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
-$as_echo_n "checking whether a program can dlopen itself... " >&6; }
-if test "${lt_cv_dlopen_self+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test "$cross_compiling" = yes; then :
- lt_cv_dlopen_self=cross
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-#line 10114 "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}
-_LT_EOF
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
- (./conftest; exit; ) >&5 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
- x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
- x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
- esac
- else :
- # compilation failed
- lt_cv_dlopen_self=no
- fi
-fi
-rm -fr conftest*
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
-$as_echo "$lt_cv_dlopen_self" >&6; }
-
- if test "x$lt_cv_dlopen_self" = xyes; then
- wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
-$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
-if test "${lt_cv_dlopen_self_static+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test "$cross_compiling" = yes; then :
- lt_cv_dlopen_self_static=cross
-else
- lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
- lt_status=$lt_dlunknown
- cat > conftest.$ac_ext <<_LT_EOF
-#line 10210 "configure"
-#include "confdefs.h"
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LT_DLGLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LT_DLGLOBAL DL_GLOBAL
-# else
-# define LT_DLGLOBAL 0
-# endif
-#endif
-
-/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LT_DLLAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LT_DLLAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LT_DLLAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LT_DLLAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LT_DLLAZY_OR_NOW DL_NOW
-# else
-# define LT_DLLAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-void fnord() { int i=42;}
-int main ()
-{
- void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
- int status = $lt_dlunknown;
-
- if (self)
- {
- if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
- else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
- /* dlclose (self); */
- }
- else
- puts (dlerror ());
-
- return status;
-}
-_LT_EOF
- if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
- (./conftest; exit; ) >&5 2>/dev/null
- lt_status=$?
- case x$lt_status in
- x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
- x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
- x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
- esac
- else :
- # compilation failed
- lt_cv_dlopen_self_static=no
- fi
-fi
-rm -fr conftest*
-
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
-$as_echo "$lt_cv_dlopen_self_static" >&6; }
- fi
-
- CPPFLAGS="$save_CPPFLAGS"
- LDFLAGS="$save_LDFLAGS"
- LIBS="$save_LIBS"
- ;;
- esac
-
- case $lt_cv_dlopen_self in
- yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
- *) enable_dlopen_self=unknown ;;
- esac
-
- case $lt_cv_dlopen_self_static in
- yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
- *) enable_dlopen_self_static=unknown ;;
- esac
-fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-striplib=
-old_striplib=
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
-$as_echo_n "checking whether stripping libraries is possible... " >&6; }
-if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
- test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
- test -z "$striplib" && striplib="$STRIP --strip-unneeded"
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
-# FIXME - insert some real tests, host_os isn't really good enough
- case $host_os in
- darwin*)
- if test -n "$STRIP" ; then
- striplib="$STRIP -x"
- old_striplib="$STRIP -S"
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
- else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
- fi
- ;;
- *)
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
- ;;
- esac
-fi
-
-
-
-
-
-
-
-
-
-
-
-
- # Report which library types will actually be built
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
-$as_echo_n "checking if libtool supports shared libraries... " >&6; }
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
-$as_echo "$can_build_shared" >&6; }
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
-$as_echo_n "checking whether to build shared libraries... " >&6; }
- test "$can_build_shared" = "no" && enable_shared=no
-
- # On AIX, shared libraries and static libraries use the same namespace, and
- # are all built from PIC.
- case $host_os in
- aix3*)
- test "$enable_shared" = yes && enable_static=no
- if test -n "$RANLIB"; then
- archive_cmds="$archive_cmds~\$RANLIB \$lib"
- postinstall_cmds='$RANLIB $lib'
- fi
- ;;
-
- aix[4-9]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
- fi
- ;;
- esac
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
-$as_echo "$enable_shared" >&6; }
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
-$as_echo_n "checking whether to build static libraries... " >&6; }
- # Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
-$as_echo "$enable_static" >&6; }
-
-
-
-
-fi
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-CC="$lt_save_CC"
-
-
-
-
-
-
-
-
-
-
-
-
-
- ac_config_commands="$ac_config_commands libtool"
-
-
-
-
-# Only expand once:
-
-
-
-if test "x$GCC" = xyes ; then
- CFLAGS="-O3 $CFLAGS"
-fi
-
-
-for ac_header in sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h
-do :
- as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
- cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-for ac_func in inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd
-do :
- as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
- cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-
-for ac_func in clock_gettime
-do :
- ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
-if test "x$ac_cv_func_clock_gettime" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_CLOCK_GETTIME 1
-_ACEOF
-
-else
-
- if test $(uname) = Linux; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime syscall" >&5
-$as_echo_n "checking for clock_gettime syscall... " >&6; }
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <unistd.h>
- #include <sys/syscall.h>
- #include <time.h>
-int
-main ()
-{
-struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_have_clock_syscall=1
-
-$as_echo "#define HAVE_CLOCK_SYSCALL 1" >>confdefs.h
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
- fi
- if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
-$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
-if test "${ac_cv_lib_rt_clock_gettime+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lrt $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char clock_gettime ();
-int
-main ()
-{
-return clock_gettime ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_rt_clock_gettime=yes
-else
- ac_cv_lib_rt_clock_gettime=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
-$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
-if test "x$ac_cv_lib_rt_clock_gettime" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBRT 1
-_ACEOF
-
- LIBS="-lrt $LIBS"
-
-fi
-
- unset ac_cv_func_clock_gettime
- for ac_func in clock_gettime
-do :
- ac_fn_c_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
-if test "x$ac_cv_func_clock_gettime" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_CLOCK_GETTIME 1
-_ACEOF
-
-fi
-done
-
- fi
-
-fi
-done
-
-
-for ac_func in nanosleep
-do :
- ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep"
-if test "x$ac_cv_func_nanosleep" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_NANOSLEEP 1
-_ACEOF
-
-else
-
- if test -z "$LIBEV_M4_AVOID_LIBRT"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nanosleep in -lrt" >&5
-$as_echo_n "checking for nanosleep in -lrt... " >&6; }
-if test "${ac_cv_lib_rt_nanosleep+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lrt $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char nanosleep ();
-int
-main ()
-{
-return nanosleep ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_rt_nanosleep=yes
-else
- ac_cv_lib_rt_nanosleep=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_nanosleep" >&5
-$as_echo "$ac_cv_lib_rt_nanosleep" >&6; }
-if test "x$ac_cv_lib_rt_nanosleep" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBRT 1
-_ACEOF
-
- LIBS="-lrt $LIBS"
-
-fi
-
- unset ac_cv_func_nanosleep
- for ac_func in nanosleep
-do :
- ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep"
-if test "x$ac_cv_func_nanosleep" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_NANOSLEEP 1
-_ACEOF
-
-fi
-done
-
- fi
-
-fi
-done
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ceil in -lm" >&5
-$as_echo_n "checking for ceil in -lm... " >&6; }
-if test "${ac_cv_lib_m_ceil+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lm $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char ceil ();
-int
-main ()
-{
-return ceil ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_m_ceil=yes
-else
- ac_cv_lib_m_ceil=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_ceil" >&5
-$as_echo "$ac_cv_lib_m_ceil" >&6; }
-if test "x$ac_cv_lib_m_ceil" = x""yes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBM 1
-_ACEOF
-
- LIBS="-lm $LIBS"
-
-fi
-
-
-
-
-ac_config_files="$ac_config_files Makefile"
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs, see configure's option --config-cache.
-# It is not useful on other systems. If it contains results you don't
-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
-# the --recheck option to rerun configure.
-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
-# following values.
-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, we kill variables containing newlines.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(
- for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
- eval ac_val=\$$ac_var
- case $ac_val in #(
- *${as_nl}*)
- case $ac_var in #(
- *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
- esac
- case $ac_var in #(
- _ | IFS | as_nl) ;; #(
- BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
- *) { eval $ac_var=; unset $ac_var;} ;;
- esac ;;
- esac
- done
-
- (set) 2>&1 |
- case $as_nl`(ac_space=' '; set) 2>&1` in #(
- *${as_nl}ac_space=\ *)
- # `set' does not quote correctly, so add quotes: double-quote
- # substitution turns \\\\ into \\, and sed turns \\ into \.
- sed -n \
- "s/'/'\\\\''/g;
- s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
- ;; #(
- *)
- # `set' quotes correctly as required by POSIX, so do not add quotes.
- sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
- ;;
- esac |
- sort
-) |
- sed '
- /^ac_cv_env_/b end
- t clear
- :clear
- s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
- t end
- s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
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-enable_static='`$ECHO "X$enable_static" | $Xsed -e "$delay_single_quote_subst"`'
-pic_mode='`$ECHO "X$pic_mode" | $Xsed -e "$delay_single_quote_subst"`'
-enable_fast_install='`$ECHO "X$enable_fast_install" | $Xsed -e "$delay_single_quote_subst"`'
-host_alias='`$ECHO "X$host_alias" | $Xsed -e "$delay_single_quote_subst"`'
-host='`$ECHO "X$host" | $Xsed -e "$delay_single_quote_subst"`'
-host_os='`$ECHO "X$host_os" | $Xsed -e "$delay_single_quote_subst"`'
-build_alias='`$ECHO "X$build_alias" | $Xsed -e "$delay_single_quote_subst"`'
-build='`$ECHO "X$build" | $Xsed -e "$delay_single_quote_subst"`'
-build_os='`$ECHO "X$build_os" | $Xsed -e "$delay_single_quote_subst"`'
-SED='`$ECHO "X$SED" | $Xsed -e "$delay_single_quote_subst"`'
-Xsed='`$ECHO "X$Xsed" | $Xsed -e "$delay_single_quote_subst"`'
-GREP='`$ECHO "X$GREP" | $Xsed -e "$delay_single_quote_subst"`'
-EGREP='`$ECHO "X$EGREP" | $Xsed -e "$delay_single_quote_subst"`'
-FGREP='`$ECHO "X$FGREP" | $Xsed -e "$delay_single_quote_subst"`'
-LD='`$ECHO "X$LD" | $Xsed -e "$delay_single_quote_subst"`'
-NM='`$ECHO "X$NM" | $Xsed -e "$delay_single_quote_subst"`'
-LN_S='`$ECHO "X$LN_S" | $Xsed -e "$delay_single_quote_subst"`'
-max_cmd_len='`$ECHO "X$max_cmd_len" | $Xsed -e "$delay_single_quote_subst"`'
-ac_objext='`$ECHO "X$ac_objext" | $Xsed -e "$delay_single_quote_subst"`'
-exeext='`$ECHO "X$exeext" | $Xsed -e "$delay_single_quote_subst"`'
-lt_unset='`$ECHO "X$lt_unset" | $Xsed -e "$delay_single_quote_subst"`'
-lt_SP2NL='`$ECHO "X$lt_SP2NL" | $Xsed -e "$delay_single_quote_subst"`'
-lt_NL2SP='`$ECHO "X$lt_NL2SP" | $Xsed -e "$delay_single_quote_subst"`'
-reload_flag='`$ECHO "X$reload_flag" | $Xsed -e "$delay_single_quote_subst"`'
-reload_cmds='`$ECHO "X$reload_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-OBJDUMP='`$ECHO "X$OBJDUMP" | $Xsed -e "$delay_single_quote_subst"`'
-deplibs_check_method='`$ECHO "X$deplibs_check_method" | $Xsed -e "$delay_single_quote_subst"`'
-file_magic_cmd='`$ECHO "X$file_magic_cmd" | $Xsed -e "$delay_single_quote_subst"`'
-AR='`$ECHO "X$AR" | $Xsed -e "$delay_single_quote_subst"`'
-AR_FLAGS='`$ECHO "X$AR_FLAGS" | $Xsed -e "$delay_single_quote_subst"`'
-STRIP='`$ECHO "X$STRIP" | $Xsed -e "$delay_single_quote_subst"`'
-RANLIB='`$ECHO "X$RANLIB" | $Xsed -e "$delay_single_quote_subst"`'
-old_postinstall_cmds='`$ECHO "X$old_postinstall_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-old_postuninstall_cmds='`$ECHO "X$old_postuninstall_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-old_archive_cmds='`$ECHO "X$old_archive_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-CC='`$ECHO "X$CC" | $Xsed -e "$delay_single_quote_subst"`'
-CFLAGS='`$ECHO "X$CFLAGS" | $Xsed -e "$delay_single_quote_subst"`'
-compiler='`$ECHO "X$compiler" | $Xsed -e "$delay_single_quote_subst"`'
-GCC='`$ECHO "X$GCC" | $Xsed -e "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_pipe='`$ECHO "X$lt_cv_sys_global_symbol_pipe" | $Xsed -e "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_cdecl='`$ECHO "X$lt_cv_sys_global_symbol_to_cdecl" | $Xsed -e "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "X$lt_cv_sys_global_symbol_to_c_name_address" | $Xsed -e "$delay_single_quote_subst"`'
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "X$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $Xsed -e "$delay_single_quote_subst"`'
-objdir='`$ECHO "X$objdir" | $Xsed -e "$delay_single_quote_subst"`'
-SHELL='`$ECHO "X$SHELL" | $Xsed -e "$delay_single_quote_subst"`'
-ECHO='`$ECHO "X$ECHO" | $Xsed -e "$delay_single_quote_subst"`'
-MAGIC_CMD='`$ECHO "X$MAGIC_CMD" | $Xsed -e "$delay_single_quote_subst"`'
-lt_prog_compiler_no_builtin_flag='`$ECHO "X$lt_prog_compiler_no_builtin_flag" | $Xsed -e "$delay_single_quote_subst"`'
-lt_prog_compiler_wl='`$ECHO "X$lt_prog_compiler_wl" | $Xsed -e "$delay_single_quote_subst"`'
-lt_prog_compiler_pic='`$ECHO "X$lt_prog_compiler_pic" | $Xsed -e "$delay_single_quote_subst"`'
-lt_prog_compiler_static='`$ECHO "X$lt_prog_compiler_static" | $Xsed -e "$delay_single_quote_subst"`'
-lt_cv_prog_compiler_c_o='`$ECHO "X$lt_cv_prog_compiler_c_o" | $Xsed -e "$delay_single_quote_subst"`'
-need_locks='`$ECHO "X$need_locks" | $Xsed -e "$delay_single_quote_subst"`'
-DSYMUTIL='`$ECHO "X$DSYMUTIL" | $Xsed -e "$delay_single_quote_subst"`'
-NMEDIT='`$ECHO "X$NMEDIT" | $Xsed -e "$delay_single_quote_subst"`'
-LIPO='`$ECHO "X$LIPO" | $Xsed -e "$delay_single_quote_subst"`'
-OTOOL='`$ECHO "X$OTOOL" | $Xsed -e "$delay_single_quote_subst"`'
-OTOOL64='`$ECHO "X$OTOOL64" | $Xsed -e "$delay_single_quote_subst"`'
-libext='`$ECHO "X$libext" | $Xsed -e "$delay_single_quote_subst"`'
-shrext_cmds='`$ECHO "X$shrext_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-extract_expsyms_cmds='`$ECHO "X$extract_expsyms_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-archive_cmds_need_lc='`$ECHO "X$archive_cmds_need_lc" | $Xsed -e "$delay_single_quote_subst"`'
-enable_shared_with_static_runtimes='`$ECHO "X$enable_shared_with_static_runtimes" | $Xsed -e "$delay_single_quote_subst"`'
-export_dynamic_flag_spec='`$ECHO "X$export_dynamic_flag_spec" | $Xsed -e "$delay_single_quote_subst"`'
-whole_archive_flag_spec='`$ECHO "X$whole_archive_flag_spec" | $Xsed -e "$delay_single_quote_subst"`'
-compiler_needs_object='`$ECHO "X$compiler_needs_object" | $Xsed -e "$delay_single_quote_subst"`'
-old_archive_from_new_cmds='`$ECHO "X$old_archive_from_new_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-old_archive_from_expsyms_cmds='`$ECHO "X$old_archive_from_expsyms_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-archive_cmds='`$ECHO "X$archive_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-archive_expsym_cmds='`$ECHO "X$archive_expsym_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-module_cmds='`$ECHO "X$module_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-module_expsym_cmds='`$ECHO "X$module_expsym_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-with_gnu_ld='`$ECHO "X$with_gnu_ld" | $Xsed -e "$delay_single_quote_subst"`'
-allow_undefined_flag='`$ECHO "X$allow_undefined_flag" | $Xsed -e "$delay_single_quote_subst"`'
-no_undefined_flag='`$ECHO "X$no_undefined_flag" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_libdir_flag_spec='`$ECHO "X$hardcode_libdir_flag_spec" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_libdir_flag_spec_ld='`$ECHO "X$hardcode_libdir_flag_spec_ld" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_libdir_separator='`$ECHO "X$hardcode_libdir_separator" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_direct='`$ECHO "X$hardcode_direct" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_direct_absolute='`$ECHO "X$hardcode_direct_absolute" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_minus_L='`$ECHO "X$hardcode_minus_L" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_shlibpath_var='`$ECHO "X$hardcode_shlibpath_var" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_automatic='`$ECHO "X$hardcode_automatic" | $Xsed -e "$delay_single_quote_subst"`'
-inherit_rpath='`$ECHO "X$inherit_rpath" | $Xsed -e "$delay_single_quote_subst"`'
-link_all_deplibs='`$ECHO "X$link_all_deplibs" | $Xsed -e "$delay_single_quote_subst"`'
-fix_srcfile_path='`$ECHO "X$fix_srcfile_path" | $Xsed -e "$delay_single_quote_subst"`'
-always_export_symbols='`$ECHO "X$always_export_symbols" | $Xsed -e "$delay_single_quote_subst"`'
-export_symbols_cmds='`$ECHO "X$export_symbols_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-exclude_expsyms='`$ECHO "X$exclude_expsyms" | $Xsed -e "$delay_single_quote_subst"`'
-include_expsyms='`$ECHO "X$include_expsyms" | $Xsed -e "$delay_single_quote_subst"`'
-prelink_cmds='`$ECHO "X$prelink_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-file_list_spec='`$ECHO "X$file_list_spec" | $Xsed -e "$delay_single_quote_subst"`'
-variables_saved_for_relink='`$ECHO "X$variables_saved_for_relink" | $Xsed -e "$delay_single_quote_subst"`'
-need_lib_prefix='`$ECHO "X$need_lib_prefix" | $Xsed -e "$delay_single_quote_subst"`'
-need_version='`$ECHO "X$need_version" | $Xsed -e "$delay_single_quote_subst"`'
-version_type='`$ECHO "X$version_type" | $Xsed -e "$delay_single_quote_subst"`'
-runpath_var='`$ECHO "X$runpath_var" | $Xsed -e "$delay_single_quote_subst"`'
-shlibpath_var='`$ECHO "X$shlibpath_var" | $Xsed -e "$delay_single_quote_subst"`'
-shlibpath_overrides_runpath='`$ECHO "X$shlibpath_overrides_runpath" | $Xsed -e "$delay_single_quote_subst"`'
-libname_spec='`$ECHO "X$libname_spec" | $Xsed -e "$delay_single_quote_subst"`'
-library_names_spec='`$ECHO "X$library_names_spec" | $Xsed -e "$delay_single_quote_subst"`'
-soname_spec='`$ECHO "X$soname_spec" | $Xsed -e "$delay_single_quote_subst"`'
-postinstall_cmds='`$ECHO "X$postinstall_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-postuninstall_cmds='`$ECHO "X$postuninstall_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-finish_cmds='`$ECHO "X$finish_cmds" | $Xsed -e "$delay_single_quote_subst"`'
-finish_eval='`$ECHO "X$finish_eval" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_into_libs='`$ECHO "X$hardcode_into_libs" | $Xsed -e "$delay_single_quote_subst"`'
-sys_lib_search_path_spec='`$ECHO "X$sys_lib_search_path_spec" | $Xsed -e "$delay_single_quote_subst"`'
-sys_lib_dlsearch_path_spec='`$ECHO "X$sys_lib_dlsearch_path_spec" | $Xsed -e "$delay_single_quote_subst"`'
-hardcode_action='`$ECHO "X$hardcode_action" | $Xsed -e "$delay_single_quote_subst"`'
-enable_dlopen='`$ECHO "X$enable_dlopen" | $Xsed -e "$delay_single_quote_subst"`'
-enable_dlopen_self='`$ECHO "X$enable_dlopen_self" | $Xsed -e "$delay_single_quote_subst"`'
-enable_dlopen_self_static='`$ECHO "X$enable_dlopen_self_static" | $Xsed -e "$delay_single_quote_subst"`'
-old_striplib='`$ECHO "X$old_striplib" | $Xsed -e "$delay_single_quote_subst"`'
-striplib='`$ECHO "X$striplib" | $Xsed -e "$delay_single_quote_subst"`'
-
-LTCC='$LTCC'
-LTCFLAGS='$LTCFLAGS'
-compiler='$compiler_DEFAULT'
-
-# Quote evaled strings.
-for var in SED \
-GREP \
-EGREP \
-FGREP \
-LD \
-NM \
-LN_S \
-lt_SP2NL \
-lt_NL2SP \
-reload_flag \
-OBJDUMP \
-deplibs_check_method \
-file_magic_cmd \
-AR \
-AR_FLAGS \
-STRIP \
-RANLIB \
-CC \
-CFLAGS \
-compiler \
-lt_cv_sys_global_symbol_pipe \
-lt_cv_sys_global_symbol_to_cdecl \
-lt_cv_sys_global_symbol_to_c_name_address \
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
-SHELL \
-ECHO \
-lt_prog_compiler_no_builtin_flag \
-lt_prog_compiler_wl \
-lt_prog_compiler_pic \
-lt_prog_compiler_static \
-lt_cv_prog_compiler_c_o \
-need_locks \
-DSYMUTIL \
-NMEDIT \
-LIPO \
-OTOOL \
-OTOOL64 \
-shrext_cmds \
-export_dynamic_flag_spec \
-whole_archive_flag_spec \
-compiler_needs_object \
-with_gnu_ld \
-allow_undefined_flag \
-no_undefined_flag \
-hardcode_libdir_flag_spec \
-hardcode_libdir_flag_spec_ld \
-hardcode_libdir_separator \
-fix_srcfile_path \
-exclude_expsyms \
-include_expsyms \
-file_list_spec \
-variables_saved_for_relink \
-libname_spec \
-library_names_spec \
-soname_spec \
-finish_eval \
-old_striplib \
-striplib; do
- case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
- *[\\\\\\\`\\"\\\$]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Double-quote double-evaled strings.
-for var in reload_cmds \
-old_postinstall_cmds \
-old_postuninstall_cmds \
-old_archive_cmds \
-extract_expsyms_cmds \
-old_archive_from_new_cmds \
-old_archive_from_expsyms_cmds \
-archive_cmds \
-archive_expsym_cmds \
-module_cmds \
-module_expsym_cmds \
-export_symbols_cmds \
-prelink_cmds \
-postinstall_cmds \
-postuninstall_cmds \
-finish_cmds \
-sys_lib_search_path_spec \
-sys_lib_dlsearch_path_spec; do
- case \`eval \\\\\$ECHO "X\\\\\$\$var"\` in
- *[\\\\\\\`\\"\\\$]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"X\\\$\$var\\" | \\\$Xsed -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
- ;;
- *)
- eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
- ;;
- esac
-done
-
-# Fix-up fallback echo if it was mangled by the above quoting rules.
-case \$lt_ECHO in
-*'\\\$0 --fallback-echo"') lt_ECHO=\`\$ECHO "X\$lt_ECHO" | \$Xsed -e 's/\\\\\\\\\\\\\\\$0 --fallback-echo"\$/\$0 --fallback-echo"/'\`
- ;;
-esac
-
-ac_aux_dir='$ac_aux_dir'
-xsi_shell='$xsi_shell'
-lt_shell_append='$lt_shell_append'
-
-# See if we are running on zsh, and set the options which allow our
-# commands through without removal of \ escapes INIT.
-if test -n "\${ZSH_VERSION+set}" ; then
- setopt NO_GLOB_SUBST
-fi
-
-
- PACKAGE='$PACKAGE'
- VERSION='$VERSION'
- TIMESTAMP='$TIMESTAMP'
- RM='$RM'
- ofile='$ofile'
-
-
-
-
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-
-# Handling of arguments.
-for ac_config_target in $ac_config_targets
-do
- case $ac_config_target in
- "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
- "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
- "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
- "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
-
- *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5 ;;
- esac
-done
-
-
-# If the user did not use the arguments to specify the items to instantiate,
-# then the envvar interface is used. Set only those that are not.
-# We use the long form for the default assignment because of an extremely
-# bizarre bug on SunOS 4.1.3.
-if $ac_need_defaults; then
- test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
- test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
- test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
-fi
-
-# Have a temporary directory for convenience. Make it in the build tree
-# simply because there is no reason against having it here, and in addition,
-# creating and moving files from /tmp can sometimes cause problems.
-# Hook for its removal unless debugging.
-# Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
-$debug ||
-{
- tmp=
- trap 'exit_status=$?
- { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
-' 0
- trap 'as_fn_exit 1' 1 2 13 15
-}
-# Create a (secure) tmp directory for tmp files.
-
-{
- tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
- test -n "$tmp" && test -d "$tmp"
-} ||
-{
- tmp=./conf$$-$RANDOM
- (umask 077 && mkdir "$tmp")
-} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
-
-# Set up the scripts for CONFIG_FILES section.
-# No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
-if test -n "$CONFIG_FILES"; then
-
-
-ac_cr=`echo X | tr X '\015'`
-# On cygwin, bash can eat \r inside `` if the user requested igncr.
-# But we know of no other shell where ac_cr would be empty at this
-# point, so we can use a bashism as a fallback.
-if test "x$ac_cr" = x; then
- eval ac_cr=\$\'\\r\'
-fi
-ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
-if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
- ac_cs_awk_cr='\\r'
-else
- ac_cs_awk_cr=$ac_cr
-fi
-
-echo 'BEGIN {' >"$tmp/subs1.awk" &&
-_ACEOF
-
-
-{
- echo "cat >conf$$subs.awk <<_ACEOF" &&
- echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
- echo "_ACEOF"
-} >conf$$subs.sh ||
- as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
-ac_delim='%!_!# '
-for ac_last_try in false false false false false :; do
- . ./conf$$subs.sh ||
- as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-
- ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
- if test $ac_delim_n = $ac_delim_num; then
- break
- elif $ac_last_try; then
- as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
- else
- ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
- fi
-done
-rm -f conf$$subs.sh
-
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&
-_ACEOF
-sed -n '
-h
-s/^/S["/; s/!.*/"]=/
-p
-g
-s/^[^!]*!//
-:repl
-t repl
-s/'"$ac_delim"'$//
-t delim
-:nl
-h
-s/\(.\{148\}\)..*/\1/
-t more1
-s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
-p
-n
-b repl
-:more1
-s/["\\]/\\&/g; s/^/"/; s/$/"\\/
-p
-g
-s/.\{148\}//
-t nl
-:delim
-h
-s/\(.\{148\}\)..*/\1/
-t more2
-s/["\\]/\\&/g; s/^/"/; s/$/"/
-p
-b
-:more2
-s/["\\]/\\&/g; s/^/"/; s/$/"\\/
-p
-g
-s/.\{148\}//
-t delim
-' <conf$$subs.awk | sed '
-/^[^""]/{
- N
- s/\n//
-}
-' >>$CONFIG_STATUS || ac_write_fail=1
-rm -f conf$$subs.awk
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-_ACAWK
-cat >>"\$tmp/subs1.awk" <<_ACAWK &&
- for (key in S) S_is_set[key] = 1
- FS = "\a"
-
-}
-{
- line = $ 0
- nfields = split(line, field, "@")
- substed = 0
- len = length(field[1])
- for (i = 2; i < nfields; i++) {
- key = field[i]
- keylen = length(key)
- if (S_is_set[key]) {
- value = S[key]
- line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
- len += length(value) + length(field[++i])
- substed = 1
- } else
- len += 1 + keylen
- }
-
- print line
-}
-
-_ACAWK
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
- sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
-else
- cat
-fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
- || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
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-
-# turn spaces into newlines.
-SP2NL=$lt_lt_SP2NL
-
-# turn newlines into spaces.
-NL2SP=$lt_lt_NL2SP
-
-# How to create reloadable object files.
-reload_flag=$lt_reload_flag
-reload_cmds=$lt_reload_cmds
-
-# An object symbol dumper.
-OBJDUMP=$lt_OBJDUMP
-
-# Method to check whether dependent libraries are shared objects.
-deplibs_check_method=$lt_deplibs_check_method
-
-# Command to use when deplibs_check_method == "file_magic".
-file_magic_cmd=$lt_file_magic_cmd
-
-# The archiver.
-AR=$lt_AR
-AR_FLAGS=$lt_AR_FLAGS
-
-# A symbol stripping program.
-STRIP=$lt_STRIP
-
-# Commands used to install an old-style archive.
-RANLIB=$lt_RANLIB
-old_postinstall_cmds=$lt_old_postinstall_cmds
-old_postuninstall_cmds=$lt_old_postuninstall_cmds
-
-# A C compiler.
-LTCC=$lt_CC
-
-# LTCC compiler flags.
-LTCFLAGS=$lt_CFLAGS
-
-# Take the output of nm and produce a listing of raw symbols and C names.
-global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
-
-# Transform the output of nm in a proper C declaration.
-global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
-
-# Transform the output of nm in a C name address pair.
-global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
-
-# Transform the output of nm in a C name address pair when lib prefix is needed.
-global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
-
-# The name of the directory that contains temporary libtool files.
-objdir=$objdir
-
-# Shell to use when invoking shell scripts.
-SHELL=$lt_SHELL
-
-# An echo program that does not interpret backslashes.
-ECHO=$lt_ECHO
-
-# Used to examine libraries when file_magic_cmd begins with "file".
-MAGIC_CMD=$MAGIC_CMD
-
-# Must we lock files when doing compilation?
-need_locks=$lt_need_locks
-
-# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
-DSYMUTIL=$lt_DSYMUTIL
-
-# Tool to change global to local symbols on Mac OS X.
-NMEDIT=$lt_NMEDIT
-
-# Tool to manipulate fat objects and archives on Mac OS X.
-LIPO=$lt_LIPO
-
-# ldd/readelf like tool for Mach-O binaries on Mac OS X.
-OTOOL=$lt_OTOOL
-
-# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
-OTOOL64=$lt_OTOOL64
-
-# Old archive suffix (normally "a").
-libext=$libext
-
-# Shared library suffix (normally ".so").
-shrext_cmds=$lt_shrext_cmds
-
-# The commands to extract the exported symbol list from a shared archive.
-extract_expsyms_cmds=$lt_extract_expsyms_cmds
-
-# Variables whose values should be saved in libtool wrapper scripts and
-# restored at link time.
-variables_saved_for_relink=$lt_variables_saved_for_relink
-
-# Do we need the "lib" prefix for modules?
-need_lib_prefix=$need_lib_prefix
-
-# Do we need a version for libraries?
-need_version=$need_version
-
-# Library versioning type.
-version_type=$version_type
-
-# Shared library runtime path variable.
-runpath_var=$runpath_var
-
-# Shared library path variable.
-shlibpath_var=$shlibpath_var
-
-# Is shlibpath searched before the hard-coded library search path?
-shlibpath_overrides_runpath=$shlibpath_overrides_runpath
-
-# Format of library name prefix.
-libname_spec=$lt_libname_spec
-
-# List of archive names. First name is the real one, the rest are links.
-# The last name is the one that the linker finds with -lNAME
-library_names_spec=$lt_library_names_spec
-
-# The coded name of the library, if different from the real name.
-soname_spec=$lt_soname_spec
-
-# Command to use after installation of a shared archive.
-postinstall_cmds=$lt_postinstall_cmds
-
-# Command to use after uninstallation of a shared archive.
-postuninstall_cmds=$lt_postuninstall_cmds
-
-# Commands used to finish a libtool library installation in a directory.
-finish_cmds=$lt_finish_cmds
-
-# As "finish_cmds", except a single script fragment to be evaled but
-# not shown.
-finish_eval=$lt_finish_eval
-
-# Whether we should hardcode library paths into libraries.
-hardcode_into_libs=$hardcode_into_libs
-
-# Compile-time system search path for libraries.
-sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
-
-# Run-time system search path for libraries.
-sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
-
-# Whether dlopen is supported.
-dlopen_support=$enable_dlopen
-
-# Whether dlopen of programs is supported.
-dlopen_self=$enable_dlopen_self
-
-# Whether dlopen of statically linked programs is supported.
-dlopen_self_static=$enable_dlopen_self_static
-
-# Commands to strip libraries.
-old_striplib=$lt_old_striplib
-striplib=$lt_striplib
-
-
-# The linker used to build libraries.
-LD=$lt_LD
-
-# Commands used to build an old-style archive.
-old_archive_cmds=$lt_old_archive_cmds
-
-# A language specific compiler.
-CC=$lt_compiler
-
-# Is the compiler the GNU compiler?
-with_gcc=$GCC
-
-# Compiler flag to turn off builtin functions.
-no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
-
-# How to pass a linker flag through the compiler.
-wl=$lt_lt_prog_compiler_wl
-
-# Additional compiler flags for building library objects.
-pic_flag=$lt_lt_prog_compiler_pic
-
-# Compiler flag to prevent dynamic linking.
-link_static_flag=$lt_lt_prog_compiler_static
-
-# Does compiler simultaneously support -c and -o options?
-compiler_c_o=$lt_lt_cv_prog_compiler_c_o
-
-# Whether or not to add -lc for building shared libraries.
-build_libtool_need_lc=$archive_cmds_need_lc
-
-# Whether or not to disallow shared libs when runtime libs are static.
-allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
-
-# Compiler flag to allow reflexive dlopens.
-export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
-
-# Compiler flag to generate shared objects directly from archives.
-whole_archive_flag_spec=$lt_whole_archive_flag_spec
-
-# Whether the compiler copes with passing no objects directly.
-compiler_needs_object=$lt_compiler_needs_object
-
-# Create an old-style archive from a shared archive.
-old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
-
-# Create a temporary old-style archive to link instead of a shared archive.
-old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
-
-# Commands used to build a shared archive.
-archive_cmds=$lt_archive_cmds
-archive_expsym_cmds=$lt_archive_expsym_cmds
-
-# Commands used to build a loadable module if different from building
-# a shared archive.
-module_cmds=$lt_module_cmds
-module_expsym_cmds=$lt_module_expsym_cmds
-
-# Whether we are building with GNU ld or not.
-with_gnu_ld=$lt_with_gnu_ld
-
-# Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag=$lt_allow_undefined_flag
-
-# Flag that enforces no undefined symbols.
-no_undefined_flag=$lt_no_undefined_flag
-
-# Flag to hardcode \$libdir into a binary during linking.
-# This must work even if \$libdir does not exist
-hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
-
-# If ld is used when linking, flag to hardcode \$libdir into a binary
-# during linking. This must work even if \$libdir does not exist.
-hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld
-
-# Whether we need a single "-rpath" flag with a separated argument.
-hardcode_libdir_separator=$lt_hardcode_libdir_separator
-
-# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
-# DIR into the resulting binary.
-hardcode_direct=$hardcode_direct
-
-# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
-# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
-# library is relocated.
-hardcode_direct_absolute=$hardcode_direct_absolute
-
-# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
-# into the resulting binary.
-hardcode_minus_L=$hardcode_minus_L
-
-# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
-# into the resulting binary.
-hardcode_shlibpath_var=$hardcode_shlibpath_var
-
-# Set to "yes" if building a shared library automatically hardcodes DIR
-# into the library and all subsequent libraries and executables linked
-# against it.
-hardcode_automatic=$hardcode_automatic
-
-# Set to yes if linker adds runtime paths of dependent libraries
-# to runtime path list.
-inherit_rpath=$inherit_rpath
-
-# Whether libtool must link a program against all its dependency libraries.
-link_all_deplibs=$link_all_deplibs
-
-# Fix the shell variable \$srcfile for the compiler.
-fix_srcfile_path=$lt_fix_srcfile_path
-
-# Set to "yes" if exported symbols are required.
-always_export_symbols=$always_export_symbols
-
-# The commands to list exported symbols.
-export_symbols_cmds=$lt_export_symbols_cmds
-
-# Symbols that should not be listed in the preloaded symbols.
-exclude_expsyms=$lt_exclude_expsyms
-
-# Symbols that must always be exported.
-include_expsyms=$lt_include_expsyms
-
-# Commands necessary for linking programs (against libraries) with templates.
-prelink_cmds=$lt_prelink_cmds
-
-# Specify filename containing input files.
-file_list_spec=$lt_file_list_spec
-
-# How to hardcode a shared library path into an executable.
-hardcode_action=$hardcode_action
-
-# ### END LIBTOOL CONFIG
-
-_LT_EOF
-
- case $host_os in
- aix3*)
- cat <<\_LT_EOF >> "$cfgfile"
-# AIX sometimes has problems with the GCC collect2 program. For some
-# reason, if we set the COLLECT_NAMES environment variable, the problems
-# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
- COLLECT_NAMES=
- export COLLECT_NAMES
-fi
-_LT_EOF
- ;;
- esac
-
-
-ltmain="$ac_aux_dir/ltmain.sh"
-
-
- # We use sed instead of cat because bash on DJGPP gets confused if
- # if finds mixed CR/LF and LF-only lines. Since sed operates in
- # text mode, it properly converts lines to CR/LF. This bash problem
- # is reportedly fixed, but why not run on old versions too?
- sed '/^# Generated shell functions inserted here/q' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- case $xsi_shell in
- yes)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result="${1##*/}"
-}
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
- func_basename_result="${1##*/}"
-}
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-func_stripname ()
-{
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary parameter first.
- func_stripname_result=${3}
- func_stripname_result=${func_stripname_result#"${1}"}
- func_stripname_result=${func_stripname_result%"${2}"}
-}
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=${1%%=*}
- func_opt_split_arg=${1#*=}
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- case ${1} in
- *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
- *) func_lo2o_result=${1} ;;
- esac
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=${1%.*}.lo
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=$(( $* ))
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=${#1}
-}
-
-_LT_EOF
- ;;
- *) # Bourne compatible functions.
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
-}
-
-# func_basename file
-func_basename ()
-{
- func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-# func_strip_suffix prefix name
-func_stripname ()
-{
- case ${2} in
- .*) func_stripname_result=`$ECHO "X${3}" \
- | $Xsed -e "s%^${1}%%" -e "s%\\\\${2}\$%%"`;;
- *) func_stripname_result=`$ECHO "X${3}" \
- | $Xsed -e "s%^${1}%%" -e "s%${2}\$%%"`;;
- esac
-}
-
-# sed scripts:
-my_sed_long_opt='1s/^\(-[^=]*\)=.*/\1/;q'
-my_sed_long_arg='1s/^-[^=]*=//'
-
-# func_opt_split
-func_opt_split ()
-{
- func_opt_split_opt=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_opt"`
- func_opt_split_arg=`$ECHO "X${1}" | $Xsed -e "$my_sed_long_arg"`
-}
-
-# func_lo2o object
-func_lo2o ()
-{
- func_lo2o_result=`$ECHO "X${1}" | $Xsed -e "$lo2o"`
-}
-
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=`$ECHO "X${1}" | $Xsed -e 's/\.[^.]*$/.lo/'`
-}
-
-# func_arith arithmetic-term...
-func_arith ()
-{
- func_arith_result=`expr "$@"`
-}
-
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
-}
-
-_LT_EOF
-esac
-
-case $lt_shell_append in
- yes)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$1+=\$2"
-}
-_LT_EOF
- ;;
- *)
- cat << \_LT_EOF >> "$cfgfile"
-
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
-{
- eval "$1=\$$1\$2"
-}
-
-_LT_EOF
- ;;
- esac
-
-
- sed -n '/^# Generated shell functions inserted here/,$p' "$ltmain" >> "$cfgfile" \
- || (rm -f "$cfgfile"; exit 1)
-
- mv -f "$cfgfile" "$ofile" ||
- (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
- chmod +x "$ofile"
-
- ;;
-
- esac
-done # for ac_tag
-
-
-as_fn_exit 0
-_ACEOF
-ac_clean_files=$ac_clean_files_save
-
-test $ac_write_fail = 0 ||
- as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded. So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status. When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
- ac_cs_success=:
- ac_config_status_args=
- test "$silent" = yes &&
- ac_config_status_args="$ac_config_status_args --quiet"
- exec 5>/dev/null
- $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
- exec 5>>config.log
- # Use ||, not &&, to avoid exiting from the if with $? = 1, which
- # would make configure fail if this is the last instruction.
- $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
+++ /dev/null
-AC_INIT
-AC_CONFIG_SRCDIR([ev_epoll.c])
-
-AM_INIT_AUTOMAKE(libev,4.04) dnl also update ev.h!
-AC_CONFIG_HEADERS([config.h])
-AM_MAINTAINER_MODE
-
-AC_PROG_INSTALL
-AC_PROG_LIBTOOL
-
-if test "x$GCC" = xyes ; then
- CFLAGS="-O3 $CFLAGS"
-fi
-
-m4_include([libev.m4])
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
+++ /dev/null
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2009-04-28.21; # UTC
-
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
-# Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
-
-case $1 in
- '')
- echo "$0: No command. Try \`$0 --help' for more information." 1>&2
- exit 1;
- ;;
- -h | --h*)
- cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
- depmode Dependency tracking mode.
- source Source file read by `PROGRAMS ARGS'.
- object Object file output by `PROGRAMS ARGS'.
- DEPDIR directory where to store dependencies.
- depfile Dependency file to output.
- tmpdepfile Temporary file to use when outputing dependencies.
- libtool Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
- exit $?
- ;;
- -v | --v*)
- echo "depcomp $scriptversion"
- exit $?
- ;;
-esac
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
- echo "depcomp: Variables source, object and depmode must be set" 1>&2
- exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
- sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Some modes work just like other modes, but use different flags. We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write. Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
- # HP compiler uses -M and no extra arg.
- gccflag=-M
- depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
- # This is just like dashmstdout with a different argument.
- dashmflag=-xM
- depmode=dashmstdout
-fi
-
-cygpath_u="cygpath -u -f -"
-if test "$depmode" = msvcmsys; then
- # This is just like msvisualcpp but w/o cygpath translation.
- # Just convert the backslash-escaped backslashes to single forward
- # slashes to satisfy depend.m4
- cygpath_u="sed s,\\\\\\\\,/,g"
- depmode=msvisualcpp
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want. Yay! Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff. Hmm.
-## Unfortunately, FreeBSD c89 acceptance of flags depends upon
-## the command line argument order; so add the flags where they
-## appear in depend2.am. Note that the slowdown incurred here
-## affects only configure: in makefiles, %FASTDEP% shortcuts this.
- for arg
- do
- case $arg in
- -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
- *) set fnord "$@" "$arg" ;;
- esac
- shift # fnord
- shift # $arg
- done
- "$@"
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- mv "$tmpdepfile" "$depfile"
- ;;
-
-gcc)
-## There are various ways to get dependency output from gcc. Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-## up in a subdir. Having to rename by hand is ugly.
-## (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-## -MM, not -M (despite what the docs say).
-## - Using -M directly means running the compiler twice (even worse
-## than renaming).
- if test -z "$gccflag"; then
- gccflag=-MD,
- fi
- "$@" -Wp,"$gccflag$tmpdepfile"
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
-## The second -e expression handles DOS-style file names with drive letters.
- sed -e 's/^[^:]*: / /' \
- -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the `deleted header file' problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header). We avoid this by adding
-## dummy dependencies for each header file. Too bad gcc doesn't do
-## this for us directly.
- tr ' ' '
-' < "$tmpdepfile" |
-## Some versions of gcc put a space before the `:'. On the theory
-## that the space means something, we add a space to the output as
-## well.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-hp)
- # This case exists only to let depend.m4 do its work. It works by
- # looking at the text of this script. This case will never be run,
- # since it is checked for above.
- exit 1
- ;;
-
-sgi)
- if test "$libtool" = yes; then
- "$@" "-Wp,-MDupdate,$tmpdepfile"
- else
- "$@" -MDupdate "$tmpdepfile"
- fi
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
-
- if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
- echo "$object : \\" > "$depfile"
-
- # Clip off the initial element (the dependent). Don't try to be
- # clever and replace this with sed code, as IRIX sed won't handle
- # lines with more than a fixed number of characters (4096 in
- # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
- # the IRIX cc adds comments like `#:fec' to the end of the
- # dependency line.
- tr ' ' '
-' < "$tmpdepfile" \
- | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
- tr '
-' ' ' >> "$depfile"
- echo >> "$depfile"
-
- # The second pass generates a dummy entry for each header file.
- tr ' ' '
-' < "$tmpdepfile" \
- | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
- >> "$depfile"
- else
- # The sourcefile does not contain any dependencies, so just
- # store a dummy comment line, to avoid errors with the Makefile
- # "include basename.Plo" scheme.
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile"
- ;;
-
-aix)
- # The C for AIX Compiler uses -M and outputs the dependencies
- # in a .u file. In older versions, this file always lives in the
- # current directory. Also, the AIX compiler puts `$object:' at the
- # start of each line; $object doesn't have directory information.
- # Version 6 uses the directory in both cases.
- dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
- test "x$dir" = "x$object" && dir=
- base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
- if test "$libtool" = yes; then
- tmpdepfile1=$dir$base.u
- tmpdepfile2=$base.u
- tmpdepfile3=$dir.libs/$base.u
- "$@" -Wc,-M
- else
- tmpdepfile1=$dir$base.u
- tmpdepfile2=$dir$base.u
- tmpdepfile3=$dir$base.u
- "$@" -M
- fi
- stat=$?
-
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
- do
- test -f "$tmpdepfile" && break
- done
- if test -f "$tmpdepfile"; then
- # Each line is of the form `foo.o: dependent.h'.
- # Do two passes, one to just change these to
- # `$object: dependent.h' and one to simply `dependent.h:'.
- sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
- # That's a tab and a space in the [].
- sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
- else
- # The sourcefile does not contain any dependencies, so just
- # store a dummy comment line, to avoid errors with the Makefile
- # "include basename.Plo" scheme.
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile"
- ;;
-
-icc)
- # Intel's C compiler understands `-MD -MF file'. However on
- # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
- # ICC 7.0 will fill foo.d with something like
- # foo.o: sub/foo.c
- # foo.o: sub/foo.h
- # which is wrong. We want:
- # sub/foo.o: sub/foo.c
- # sub/foo.o: sub/foo.h
- # sub/foo.c:
- # sub/foo.h:
- # ICC 7.1 will output
- # foo.o: sub/foo.c sub/foo.h
- # and will wrap long lines using \ :
- # foo.o: sub/foo.c ... \
- # sub/foo.h ... \
- # ...
-
- "$@" -MD -MF "$tmpdepfile"
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile"
- exit $stat
- fi
- rm -f "$depfile"
- # Each line is of the form `foo.o: dependent.h',
- # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
- # Do two passes, one to just change these to
- # `$object: dependent.h' and one to simply `dependent.h:'.
- sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
- # Some versions of the HPUX 10.20 sed can't process this invocation
- # correctly. Breaking it into two sed invocations is a workaround.
- sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
- sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-hp2)
- # The "hp" stanza above does not work with aCC (C++) and HP's ia64
- # compilers, which have integrated preprocessors. The correct option
- # to use with these is +Maked; it writes dependencies to a file named
- # 'foo.d', which lands next to the object file, wherever that
- # happens to be.
- # Much of this is similar to the tru64 case; see comments there.
- dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
- test "x$dir" = "x$object" && dir=
- base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
- if test "$libtool" = yes; then
- tmpdepfile1=$dir$base.d
- tmpdepfile2=$dir.libs/$base.d
- "$@" -Wc,+Maked
- else
- tmpdepfile1=$dir$base.d
- tmpdepfile2=$dir$base.d
- "$@" +Maked
- fi
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile1" "$tmpdepfile2"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
- do
- test -f "$tmpdepfile" && break
- done
- if test -f "$tmpdepfile"; then
- sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
- # Add `dependent.h:' lines.
- sed -ne '2,${
- s/^ *//
- s/ \\*$//
- s/$/:/
- p
- }' "$tmpdepfile" >> "$depfile"
- else
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile" "$tmpdepfile2"
- ;;
-
-tru64)
- # The Tru64 compiler uses -MD to generate dependencies as a side
- # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
- # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
- # dependencies in `foo.d' instead, so we check for that too.
- # Subdirectories are respected.
- dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
- test "x$dir" = "x$object" && dir=
- base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
-
- if test "$libtool" = yes; then
- # With Tru64 cc, shared objects can also be used to make a
- # static library. This mechanism is used in libtool 1.4 series to
- # handle both shared and static libraries in a single compilation.
- # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
- #
- # With libtool 1.5 this exception was removed, and libtool now
- # generates 2 separate objects for the 2 libraries. These two
- # compilations output dependencies in $dir.libs/$base.o.d and
- # in $dir$base.o.d. We have to check for both files, because
- # one of the two compilations can be disabled. We should prefer
- # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
- # automatically cleaned when .libs/ is deleted, while ignoring
- # the former would cause a distcleancheck panic.
- tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
- tmpdepfile2=$dir$base.o.d # libtool 1.5
- tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
- tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
- "$@" -Wc,-MD
- else
- tmpdepfile1=$dir$base.o.d
- tmpdepfile2=$dir$base.d
- tmpdepfile3=$dir$base.d
- tmpdepfile4=$dir$base.d
- "$@" -MD
- fi
-
- stat=$?
- if test $stat -eq 0; then :
- else
- rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
- exit $stat
- fi
-
- for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
- do
- test -f "$tmpdepfile" && break
- done
- if test -f "$tmpdepfile"; then
- sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
- # That's a tab and a space in the [].
- sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
- else
- echo "#dummy" > "$depfile"
- fi
- rm -f "$tmpdepfile"
- ;;
-
-#nosideeffect)
- # This comment above is used by automake to tell side-effect
- # dependency tracking mechanisms from slower ones.
-
-dashmstdout)
- # Important note: in order to support this mode, a compiler *must*
- # always write the preprocessed file to stdout, regardless of -o.
- "$@" || exit $?
-
- # Remove the call to Libtool.
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
-
- # Remove `-o $object'.
- IFS=" "
- for arg
- do
- case $arg in
- -o)
- shift
- ;;
- $object)
- shift
- ;;
- *)
- set fnord "$@" "$arg"
- shift # fnord
- shift # $arg
- ;;
- esac
- done
-
- test -z "$dashmflag" && dashmflag=-M
- # Require at least two characters before searching for `:'
- # in the target name. This is to cope with DOS-style filenames:
- # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
- "$@" $dashmflag |
- sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
- rm -f "$depfile"
- cat < "$tmpdepfile" > "$depfile"
- tr ' ' '
-' < "$tmpdepfile" | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-dashXmstdout)
- # This case only exists to satisfy depend.m4. It is never actually
- # run, as this mode is specially recognized in the preamble.
- exit 1
- ;;
-
-makedepend)
- "$@" || exit $?
- # Remove any Libtool call
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
- # X makedepend
- shift
- cleared=no eat=no
- for arg
- do
- case $cleared in
- no)
- set ""; shift
- cleared=yes ;;
- esac
- if test $eat = yes; then
- eat=no
- continue
- fi
- case "$arg" in
- -D*|-I*)
- set fnord "$@" "$arg"; shift ;;
- # Strip any option that makedepend may not understand. Remove
- # the object too, otherwise makedepend will parse it as a source file.
- -arch)
- eat=yes ;;
- -*|$object)
- ;;
- *)
- set fnord "$@" "$arg"; shift ;;
- esac
- done
- obj_suffix=`echo "$object" | sed 's/^.*\././'`
- touch "$tmpdepfile"
- ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
- rm -f "$depfile"
- cat < "$tmpdepfile" > "$depfile"
- sed '1,2d' "$tmpdepfile" | tr ' ' '
-' | \
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly. Breaking it into two sed invocations is a workaround.
- sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile" "$tmpdepfile".bak
- ;;
-
-cpp)
- # Important note: in order to support this mode, a compiler *must*
- # always write the preprocessed file to stdout.
- "$@" || exit $?
-
- # Remove the call to Libtool.
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
-
- # Remove `-o $object'.
- IFS=" "
- for arg
- do
- case $arg in
- -o)
- shift
- ;;
- $object)
- shift
- ;;
- *)
- set fnord "$@" "$arg"
- shift # fnord
- shift # $arg
- ;;
- esac
- done
-
- "$@" -E |
- sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
- -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
- sed '$ s: \\$::' > "$tmpdepfile"
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- cat < "$tmpdepfile" >> "$depfile"
- sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-msvisualcpp)
- # Important note: in order to support this mode, a compiler *must*
- # always write the preprocessed file to stdout.
- "$@" || exit $?
-
- # Remove the call to Libtool.
- if test "$libtool" = yes; then
- while test "X$1" != 'X--mode=compile'; do
- shift
- done
- shift
- fi
-
- IFS=" "
- for arg
- do
- case "$arg" in
- -o)
- shift
- ;;
- $object)
- shift
- ;;
- "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
- set fnord "$@"
- shift
- shift
- ;;
- *)
- set fnord "$@" "$arg"
- shift
- shift
- ;;
- esac
- done
- "$@" -E 2>/dev/null |
- sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
- rm -f "$depfile"
- echo "$object : \\" > "$depfile"
- sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
- echo " " >> "$depfile"
- sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
- rm -f "$tmpdepfile"
- ;;
-
-msvcmsys)
- # This case exists only to let depend.m4 do its work. It works by
- # looking at the text of this script. This case will never be run,
- # since it is checked for above.
- exit 1
- ;;
-
-none)
- exec "$@"
- ;;
-
-*)
- echo "Unknown depmode $depmode" 1>&2
- exit 1
- ;;
-esac
-
-exit 0
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC"
-# time-stamp-end: "; # UTC"
-# End:
+++ /dev/null
-/*
- * libev simple C++ wrapper classes
- *
- * Copyright (c) 2007,2008,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EVPP_H__
-#define EVPP_H__
-
-#ifdef EV_H
-# include EV_H
-#else
-# include "ev.h"
-#endif
-
-#ifndef EV_USE_STDEXCEPT
-# define EV_USE_STDEXCEPT 1
-#endif
-
-#if EV_USE_STDEXCEPT
-# include <stdexcept>
-#endif
-
-namespace ev {
-
- typedef ev_tstamp tstamp;
-
- enum {
- UNDEF = EV_UNDEF,
- NONE = EV_NONE,
- READ = EV_READ,
- WRITE = EV_WRITE,
-#if EV_COMPAT3
- TIMEOUT = EV_TIMEOUT,
-#endif
- TIMER = EV_TIMER,
- PERIODIC = EV_PERIODIC,
- SIGNAL = EV_SIGNAL,
- CHILD = EV_CHILD,
- STAT = EV_STAT,
- IDLE = EV_IDLE,
- CHECK = EV_CHECK,
- PREPARE = EV_PREPARE,
- FORK = EV_FORK,
- ASYNC = EV_ASYNC,
- EMBED = EV_EMBED,
-# undef ERROR // some systems stupidly #define ERROR
- ERROR = EV_ERROR
- };
-
- enum
- {
- AUTO = EVFLAG_AUTO,
- NOENV = EVFLAG_NOENV,
- FORKCHECK = EVFLAG_FORKCHECK,
-
- SELECT = EVBACKEND_SELECT,
- POLL = EVBACKEND_POLL,
- EPOLL = EVBACKEND_EPOLL,
- KQUEUE = EVBACKEND_KQUEUE,
- DEVPOLL = EVBACKEND_DEVPOLL,
- PORT = EVBACKEND_PORT
- };
-
- enum
- {
-#if EV_COMPAT3
- NONBLOCK = EVLOOP_NONBLOCK,
- ONESHOT = EVLOOP_ONESHOT,
-#endif
- NOWAIT = EVRUN_NOWAIT,
- ONCE = EVRUN_ONCE
- };
-
- enum how_t
- {
- ONE = EVBREAK_ONE,
- ALL = EVBREAK_ALL
- };
-
- struct bad_loop
-#if EV_USE_STDEXCEPT
- : std::runtime_error
-#endif
- {
-#if EV_USE_STDEXCEPT
- bad_loop ()
- : std::runtime_error ("libev event loop cannot be initialized, bad value of LIBEV_FLAGS?")
- {
- }
-#endif
- };
-
-#ifdef EV_AX
-# undef EV_AX
-#endif
-
-#ifdef EV_AX_
-# undef EV_AX_
-#endif
-
-#if EV_MULTIPLICITY
-# define EV_AX raw_loop
-# define EV_AX_ raw_loop,
-#else
-# define EV_AX
-# define EV_AX_
-#endif
-
- struct loop_ref
- {
- loop_ref (EV_P) throw ()
-#if EV_MULTIPLICITY
- : EV_AX (EV_A)
-#endif
- {
- }
-
- bool operator == (const loop_ref &other) const throw ()
- {
-#if EV_MULTIPLICITY
- return EV_AX == other.EV_AX;
-#else
- return true;
-#endif
- }
-
- bool operator != (const loop_ref &other) const throw ()
- {
-#if EV_MULTIPLICITY
- return ! (*this == other);
-#else
- return false;
-#endif
- }
-
-#if EV_MULTIPLICITY
- bool operator == (const EV_P) const throw ()
- {
- return this->EV_AX == EV_A;
- }
-
- bool operator != (const EV_P) const throw ()
- {
- return (*this == EV_A);
- }
-
- operator struct ev_loop * () const throw ()
- {
- return EV_AX;
- }
-
- operator const struct ev_loop * () const throw ()
- {
- return EV_AX;
- }
-
- bool is_default () const throw ()
- {
- return EV_AX == ev_default_loop (0);
- }
-#endif
-
-#if EV_COMPAT3
- void loop (int flags = 0)
- {
- ev_run (EV_AX_ flags);
- }
-
- void unloop (how_t how = ONE) throw ()
- {
- ev_break (EV_AX_ how);
- }
-#endif
-
- void run (int flags = 0)
- {
- ev_run (EV_AX_ flags);
- }
-
- void break_loop (how_t how = ONE) throw ()
- {
- ev_break (EV_AX_ how);
- }
-
- void post_fork () throw ()
- {
- ev_loop_fork (EV_AX);
- }
-
- unsigned int backend () const throw ()
- {
- return ev_backend (EV_AX);
- }
-
- tstamp now () const throw ()
- {
- return ev_now (EV_AX);
- }
-
- void ref () throw ()
- {
- ev_ref (EV_AX);
- }
-
- void unref () throw ()
- {
- ev_unref (EV_AX);
- }
-
-#if EV_FEATURE_API
- unsigned int iteration () const throw ()
- {
- return ev_iteration (EV_AX);
- }
-
- unsigned int depth () const throw ()
- {
- return ev_depth (EV_AX);
- }
-
- void set_io_collect_interval (tstamp interval) throw ()
- {
- ev_set_io_collect_interval (EV_AX_ interval);
- }
-
- void set_timeout_collect_interval (tstamp interval) throw ()
- {
- ev_set_timeout_collect_interval (EV_AX_ interval);
- }
-#endif
-
- // function callback
- void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) throw ()
- {
- ev_once (EV_AX_ fd, events, timeout, cb, arg);
- }
-
- // method callback
- template<class K, void (K::*method)(int)>
- void once (int fd, int events, tstamp timeout, K *object) throw ()
- {
- once (fd, events, timeout, method_thunk<K, method>, object);
- }
-
- // default method == operator ()
- template<class K>
- void once (int fd, int events, tstamp timeout, K *object) throw ()
- {
- once (fd, events, timeout, method_thunk<K, &K::operator ()>, object);
- }
-
- template<class K, void (K::*method)(int)>
- static void method_thunk (int revents, void *arg)
- {
- static_cast<K *>(arg)->*method
- (revents);
- }
-
- // no-argument method callback
- template<class K, void (K::*method)()>
- void once (int fd, int events, tstamp timeout, K *object) throw ()
- {
- once (fd, events, timeout, method_noargs_thunk<K, method>, object);
- }
-
- template<class K, void (K::*method)()>
- static void method_noargs_thunk (int revents, void *arg)
- {
- static_cast<K *>(arg)->*method
- ();
- }
-
- // simpler function callback
- template<void (*cb)(int)>
- void once (int fd, int events, tstamp timeout) throw ()
- {
- once (fd, events, timeout, simpler_func_thunk<cb>);
- }
-
- template<void (*cb)(int)>
- static void simpler_func_thunk (int revents, void *arg)
- {
- (*cb)
- (revents);
- }
-
- // simplest function callback
- template<void (*cb)()>
- void once (int fd, int events, tstamp timeout) throw ()
- {
- once (fd, events, timeout, simplest_func_thunk<cb>);
- }
-
- template<void (*cb)()>
- static void simplest_func_thunk (int revents, void *arg)
- {
- (*cb)
- ();
- }
-
- void feed_fd_event (int fd, int revents) throw ()
- {
- ev_feed_fd_event (EV_AX_ fd, revents);
- }
-
- void feed_signal_event (int signum) throw ()
- {
- ev_feed_signal_event (EV_AX_ signum);
- }
-
-#if EV_MULTIPLICITY
- struct ev_loop* EV_AX;
-#endif
-
- };
-
-#if EV_MULTIPLICITY
- struct dynamic_loop : loop_ref
- {
-
- dynamic_loop (unsigned int flags = AUTO) throw (bad_loop)
- : loop_ref (ev_loop_new (flags))
- {
- if (!EV_AX)
- throw bad_loop ();
- }
-
- ~dynamic_loop () throw ()
- {
- ev_loop_destroy (EV_AX);
- EV_AX = 0;
- }
-
- private:
-
- dynamic_loop (const dynamic_loop &);
-
- dynamic_loop & operator= (const dynamic_loop &);
-
- };
-#endif
-
- struct default_loop : loop_ref
- {
- default_loop (unsigned int flags = AUTO) throw (bad_loop)
-#if EV_MULTIPLICITY
- : loop_ref (ev_default_loop (flags))
-#endif
- {
- if (
-#if EV_MULTIPLICITY
- !EV_AX
-#else
- !ev_default_loop (flags)
-#endif
- )
- throw bad_loop ();
- }
-
- private:
- default_loop (const default_loop &);
- default_loop &operator = (const default_loop &);
- };
-
- inline loop_ref get_default_loop () throw ()
- {
-#if EV_MULTIPLICITY
- return ev_default_loop (0);
-#else
- return loop_ref ();
-#endif
- }
-
-#undef EV_AX
-#undef EV_AX_
-
-#undef EV_PX
-#undef EV_PX_
-#if EV_MULTIPLICITY
-# define EV_PX loop_ref EV_A
-# define EV_PX_ loop_ref EV_A_
-#else
-# define EV_PX
-# define EV_PX_
-#endif
-
- template<class ev_watcher, class watcher>
- struct base : ev_watcher
- {
- #if EV_MULTIPLICITY
- EV_PX;
-
- // loop set
- void set (EV_P) throw ()
- {
- this->EV_A = EV_A;
- }
- #endif
-
- base (EV_PX) throw ()
- #if EV_MULTIPLICITY
- : EV_A (EV_A)
- #endif
- {
- ev_init (this, 0);
- }
-
- void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw ()
- {
- this->data = (void *)data;
- ev_set_cb (static_cast<ev_watcher *>(this), cb);
- }
-
- // function callback
- template<void (*function)(watcher &w, int)>
- void set (void *data = 0) throw ()
- {
- set_ (data, function_thunk<function>);
- }
-
- template<void (*function)(watcher &w, int)>
- static void function_thunk (EV_P_ ev_watcher *w, int revents)
- {
- function
- (*static_cast<watcher *>(w), revents);
- }
-
- // method callback
- template<class K, void (K::*method)(watcher &w, int)>
- void set (K *object) throw ()
- {
- set_ (object, method_thunk<K, method>);
- }
-
- // default method == operator ()
- template<class K>
- void set (K *object) throw ()
- {
- set_ (object, method_thunk<K, &K::operator ()>);
- }
-
- template<class K, void (K::*method)(watcher &w, int)>
- static void method_thunk (EV_P_ ev_watcher *w, int revents)
- {
- (static_cast<K *>(w->data)->*method)
- (*static_cast<watcher *>(w), revents);
- }
-
- // no-argument callback
- template<class K, void (K::*method)()>
- void set (K *object) throw ()
- {
- set_ (object, method_noargs_thunk<K, method>);
- }
-
- template<class K, void (K::*method)()>
- static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
- {
- (static_cast<K *>(w->data)->*method)
- ();
- }
-
- void operator ()(int events = EV_UNDEF)
- {
- return
- ev_cb (static_cast<ev_watcher *>(this))
- (static_cast<ev_watcher *>(this), events);
- }
-
- bool is_active () const throw ()
- {
- return ev_is_active (static_cast<const ev_watcher *>(this));
- }
-
- bool is_pending () const throw ()
- {
- return ev_is_pending (static_cast<const ev_watcher *>(this));
- }
-
- void feed_event (int revents) throw ()
- {
- ev_feed_event (EV_A_ static_cast<const ev_watcher *>(this), revents);
- }
- };
-
- inline tstamp now () throw ()
- {
- return ev_time ();
- }
-
- inline void delay (tstamp interval) throw ()
- {
- ev_sleep (interval);
- }
-
- inline int version_major () throw ()
- {
- return ev_version_major ();
- }
-
- inline int version_minor () throw ()
- {
- return ev_version_minor ();
- }
-
- inline unsigned int supported_backends () throw ()
- {
- return ev_supported_backends ();
- }
-
- inline unsigned int recommended_backends () throw ()
- {
- return ev_recommended_backends ();
- }
-
- inline unsigned int embeddable_backends () throw ()
- {
- return ev_embeddable_backends ();
- }
-
- inline void set_allocator (void *(*cb)(void *ptr, long size)) throw ()
- {
- ev_set_allocator (cb);
- }
-
- inline void set_syserr_cb (void (*cb)(const char *msg)) throw ()
- {
- ev_set_syserr_cb (cb);
- }
-
- #if EV_MULTIPLICITY
- #define EV_CONSTRUCT(cppstem,cstem) \
- (EV_PX = get_default_loop ()) throw () \
- : base<ev_ ## cstem, cppstem> (EV_A) \
- { \
- }
- #else
- #define EV_CONSTRUCT(cppstem,cstem) \
- () throw () \
- { \
- }
- #endif
-
- /* using a template here would require quite a bit more lines,
- * so a macro solution was chosen */
- #define EV_BEGIN_WATCHER(cppstem,cstem) \
- \
- struct cppstem : base<ev_ ## cstem, cppstem> \
- { \
- void start () throw () \
- { \
- ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
- } \
- \
- void stop () throw () \
- { \
- ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
- } \
- \
- cppstem EV_CONSTRUCT(cppstem,cstem) \
- \
- ~cppstem () throw () \
- { \
- stop (); \
- } \
- \
- using base<ev_ ## cstem, cppstem>::set; \
- \
- private: \
- \
- cppstem (const cppstem &o); \
- \
- cppstem &operator =(const cppstem &o); \
- \
- public:
-
- #define EV_END_WATCHER(cppstem,cstem) \
- };
-
- EV_BEGIN_WATCHER (io, io)
- void set (int fd, int events) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_io_set (static_cast<ev_io *>(this), fd, events);
- if (active) start ();
- }
-
- void set (int events) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_io_set (static_cast<ev_io *>(this), fd, events);
- if (active) start ();
- }
-
- void start (int fd, int events) throw ()
- {
- set (fd, events);
- start ();
- }
- EV_END_WATCHER (io, io)
-
- EV_BEGIN_WATCHER (timer, timer)
- void set (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
- if (active) start ();
- }
-
- void start (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
- {
- set (after, repeat);
- start ();
- }
-
- void again () throw ()
- {
- ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
- }
-
- ev_tstamp remaining ()
- {
- return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this));
- }
- EV_END_WATCHER (timer, timer)
-
- #if EV_PERIODIC_ENABLE
- EV_BEGIN_WATCHER (periodic, periodic)
- void set (ev_tstamp at, ev_tstamp interval = 0.) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
- if (active) start ();
- }
-
- void start (ev_tstamp at, ev_tstamp interval = 0.) throw ()
- {
- set (at, interval);
- start ();
- }
-
- void again () throw ()
- {
- ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
- }
- EV_END_WATCHER (periodic, periodic)
- #endif
-
- #if EV_SIGNAL_ENABLE
- EV_BEGIN_WATCHER (sig, signal)
- void set (int signum) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_signal_set (static_cast<ev_signal *>(this), signum);
- if (active) start ();
- }
-
- void start (int signum) throw ()
- {
- set (signum);
- start ();
- }
- EV_END_WATCHER (sig, signal)
- #endif
-
- #if EV_CHILD_ENABLE
- EV_BEGIN_WATCHER (child, child)
- void set (int pid, int trace = 0) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_child_set (static_cast<ev_child *>(this), pid, trace);
- if (active) start ();
- }
-
- void start (int pid, int trace = 0) throw ()
- {
- set (pid, trace);
- start ();
- }
- EV_END_WATCHER (child, child)
- #endif
-
- #if EV_STAT_ENABLE
- EV_BEGIN_WATCHER (stat, stat)
- void set (const char *path, ev_tstamp interval = 0.) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_stat_set (static_cast<ev_stat *>(this), path, interval);
- if (active) start ();
- }
-
- void start (const char *path, ev_tstamp interval = 0.) throw ()
- {
- stop ();
- set (path, interval);
- start ();
- }
-
- void update () throw ()
- {
- ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
- }
- EV_END_WATCHER (stat, stat)
- #endif
-
- #if EV_IDLE_ENABLE
- EV_BEGIN_WATCHER (idle, idle)
- void set () throw () { }
- EV_END_WATCHER (idle, idle)
- #endif
-
- #if EV_PREPARE_ENABLE
- EV_BEGIN_WATCHER (prepare, prepare)
- void set () throw () { }
- EV_END_WATCHER (prepare, prepare)
- #endif
-
- #if EV_CHECK_ENABLE
- EV_BEGIN_WATCHER (check, check)
- void set () throw () { }
- EV_END_WATCHER (check, check)
- #endif
-
- #if EV_EMBED_ENABLE
- EV_BEGIN_WATCHER (embed, embed)
- void set (struct ev_loop *embedded_loop) throw ()
- {
- int active = is_active ();
- if (active) stop ();
- ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
- if (active) start ();
- }
-
- void start (struct ev_loop *embedded_loop) throw ()
- {
- set (embedded_loop);
- start ();
- }
-
- void sweep ()
- {
- ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
- }
- EV_END_WATCHER (embed, embed)
- #endif
-
- #if EV_FORK_ENABLE
- EV_BEGIN_WATCHER (fork, fork)
- void set () throw () { }
- EV_END_WATCHER (fork, fork)
- #endif
-
- #if EV_ASYNC_ENABLE
- EV_BEGIN_WATCHER (async, async)
- void send () throw ()
- {
- ev_async_send (EV_A_ static_cast<ev_async *>(this));
- }
-
- bool async_pending () throw ()
- {
- return ev_async_pending (static_cast<ev_async *>(this));
- }
- EV_END_WATCHER (async, async)
- #endif
-
- #undef EV_PX
- #undef EV_PX_
- #undef EV_CONSTRUCT
- #undef EV_BEGIN_WATCHER
- #undef EV_END_WATCHER
-}
-
-#endif
-
+++ /dev/null
-.\" Automatically generated by Pod::Man 2.22 (Pod::Simple 3.07)
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-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "LIBEV 3"
-.TH LIBEV 3 "2011-02-16" "libev-4.04" "libev - high performance full featured event loop"
-.\" For nroff, turn off justification. Always turn off hyphenation; it makes
-.\" way too many mistakes in technical documents.
-.if n .ad l
-.nh
-.SH "NAME"
-libev \- a high performance full\-featured event loop written in C
-.SH "SYNOPSIS"
-.IX Header "SYNOPSIS"
-.Vb 1
-\& #include <ev.h>
-.Ve
-.SS "\s-1EXAMPLE\s0 \s-1PROGRAM\s0"
-.IX Subsection "EXAMPLE PROGRAM"
-.Vb 2
-\& // a single header file is required
-\& #include <ev.h>
-\&
-\& #include <stdio.h> // for puts
-\&
-\& // every watcher type has its own typedef\*(Aqd struct
-\& // with the name ev_TYPE
-\& ev_io stdin_watcher;
-\& ev_timer timeout_watcher;
-\&
-\& // all watcher callbacks have a similar signature
-\& // this callback is called when data is readable on stdin
-\& static void
-\& stdin_cb (EV_P_ ev_io *w, int revents)
-\& {
-\& puts ("stdin ready");
-\& // for one\-shot events, one must manually stop the watcher
-\& // with its corresponding stop function.
-\& ev_io_stop (EV_A_ w);
-\&
-\& // this causes all nested ev_run\*(Aqs to stop iterating
-\& ev_break (EV_A_ EVBREAK_ALL);
-\& }
-\&
-\& // another callback, this time for a time\-out
-\& static void
-\& timeout_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& puts ("timeout");
-\& // this causes the innermost ev_run to stop iterating
-\& ev_break (EV_A_ EVBREAK_ONE);
-\& }
-\&
-\& int
-\& main (void)
-\& {
-\& // use the default event loop unless you have special needs
-\& struct ev_loop *loop = EV_DEFAULT;
-\&
-\& // initialise an io watcher, then start it
-\& // this one will watch for stdin to become readable
-\& ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ);
-\& ev_io_start (loop, &stdin_watcher);
-\&
-\& // initialise a timer watcher, then start it
-\& // simple non\-repeating 5.5 second timeout
-\& ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-\& ev_timer_start (loop, &timeout_watcher);
-\&
-\& // now wait for events to arrive
-\& ev_run (loop, 0);
-\&
-\& // break was called, so exit
-\& return 0;
-\& }
-.Ve
-.SH "ABOUT THIS DOCUMENT"
-.IX Header "ABOUT THIS DOCUMENT"
-This document documents the libev software package.
-.PP
-The newest version of this document is also available as an html-formatted
-web page you might find easier to navigate when reading it for the first
-time: <http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod>.
-.PP
-While this document tries to be as complete as possible in documenting
-libev, its usage and the rationale behind its design, it is not a tutorial
-on event-based programming, nor will it introduce event-based programming
-with libev.
-.PP
-Familiarity with event based programming techniques in general is assumed
-throughout this document.
-.SH "WHAT TO READ WHEN IN A HURRY"
-.IX Header "WHAT TO READ WHEN IN A HURRY"
-This manual tries to be very detailed, but unfortunately, this also makes
-it very long. If you just want to know the basics of libev, I suggest
-reading \*(L"\s-1ANATOMY\s0 \s-1OF\s0 A \s-1WATCHER\s0\*(R", then the \*(L"\s-1EXAMPLE\s0 \s-1PROGRAM\s0\*(R" above and
-look up the missing functions in \*(L"\s-1GLOBAL\s0 \s-1FUNCTIONS\s0\*(R" and the \f(CW\*(C`ev_io\*(C'\fR and
-\&\f(CW\*(C`ev_timer\*(C'\fR sections in \*(L"\s-1WATCHER\s0 \s-1TYPES\s0\*(R".
-.SH "ABOUT LIBEV"
-.IX Header "ABOUT LIBEV"
-Libev is an event loop: you register interest in certain events (such as a
-file descriptor being readable or a timeout occurring), and it will manage
-these event sources and provide your program with events.
-.PP
-To do this, it must take more or less complete control over your process
-(or thread) by executing the \fIevent loop\fR handler, and will then
-communicate events via a callback mechanism.
-.PP
-You register interest in certain events by registering so-called \fIevent
-watchers\fR, which are relatively small C structures you initialise with the
-details of the event, and then hand it over to libev by \fIstarting\fR the
-watcher.
-.SS "\s-1FEATURES\s0"
-.IX Subsection "FEATURES"
-Libev supports \f(CW\*(C`select\*(C'\fR, \f(CW\*(C`poll\*(C'\fR, the Linux-specific \f(CW\*(C`epoll\*(C'\fR, the
-BSD-specific \f(CW\*(C`kqueue\*(C'\fR and the Solaris-specific event port mechanisms
-for file descriptor events (\f(CW\*(C`ev_io\*(C'\fR), the Linux \f(CW\*(C`inotify\*(C'\fR interface
-(for \f(CW\*(C`ev_stat\*(C'\fR), Linux eventfd/signalfd (for faster and cleaner
-inter-thread wakeup (\f(CW\*(C`ev_async\*(C'\fR)/signal handling (\f(CW\*(C`ev_signal\*(C'\fR)) relative
-timers (\f(CW\*(C`ev_timer\*(C'\fR), absolute timers with customised rescheduling
-(\f(CW\*(C`ev_periodic\*(C'\fR), synchronous signals (\f(CW\*(C`ev_signal\*(C'\fR), process status
-change events (\f(CW\*(C`ev_child\*(C'\fR), and event watchers dealing with the event
-loop mechanism itself (\f(CW\*(C`ev_idle\*(C'\fR, \f(CW\*(C`ev_embed\*(C'\fR, \f(CW\*(C`ev_prepare\*(C'\fR and
-\&\f(CW\*(C`ev_check\*(C'\fR watchers) as well as file watchers (\f(CW\*(C`ev_stat\*(C'\fR) and even
-limited support for fork events (\f(CW\*(C`ev_fork\*(C'\fR).
-.PP
-It also is quite fast (see this
-<benchmark> comparing it to libevent
-for example).
-.SS "\s-1CONVENTIONS\s0"
-.IX Subsection "CONVENTIONS"
-Libev is very configurable. In this manual the default (and most common)
-configuration will be described, which supports multiple event loops. For
-more info about various configuration options please have a look at
-\&\fB\s-1EMBED\s0\fR section in this manual. If libev was configured without support
-for multiple event loops, then all functions taking an initial argument of
-name \f(CW\*(C`loop\*(C'\fR (which is always of type \f(CW\*(C`struct ev_loop *\*(C'\fR) will not have
-this argument.
-.SS "\s-1TIME\s0 \s-1REPRESENTATION\s0"
-.IX Subsection "TIME REPRESENTATION"
-Libev represents time as a single floating point number, representing
-the (fractional) number of seconds since the (\s-1POSIX\s0) epoch (in practice
-somewhere near the beginning of 1970, details are complicated, don't
-ask). This type is called \f(CW\*(C`ev_tstamp\*(C'\fR, which is what you should use
-too. It usually aliases to the \f(CW\*(C`double\*(C'\fR type in C. When you need to do
-any calculations on it, you should treat it as some floating point value.
-.PP
-Unlike the name component \f(CW\*(C`stamp\*(C'\fR might indicate, it is also used for
-time differences (e.g. delays) throughout libev.
-.SH "ERROR HANDLING"
-.IX Header "ERROR HANDLING"
-Libev knows three classes of errors: operating system errors, usage errors
-and internal errors (bugs).
-.PP
-When libev catches an operating system error it cannot handle (for example
-a system call indicating a condition libev cannot fix), it calls the callback
-set via \f(CW\*(C`ev_set_syserr_cb\*(C'\fR, which is supposed to fix the problem or
-abort. The default is to print a diagnostic message and to call \f(CW\*(C`abort
-()\*(C'\fR.
-.PP
-When libev detects a usage error such as a negative timer interval, then
-it will print a diagnostic message and abort (via the \f(CW\*(C`assert\*(C'\fR mechanism,
-so \f(CW\*(C`NDEBUG\*(C'\fR will disable this checking): these are programming errors in
-the libev caller and need to be fixed there.
-.PP
-Libev also has a few internal error-checking \f(CW\*(C`assert\*(C'\fRions, and also has
-extensive consistency checking code. These do not trigger under normal
-circumstances, as they indicate either a bug in libev or worse.
-.SH "GLOBAL FUNCTIONS"
-.IX Header "GLOBAL FUNCTIONS"
-These functions can be called anytime, even before initialising the
-library in any way.
-.IP "ev_tstamp ev_time ()" 4
-.IX Item "ev_tstamp ev_time ()"
-Returns the current time as libev would use it. Please note that the
-\&\f(CW\*(C`ev_now\*(C'\fR function is usually faster and also often returns the timestamp
-you actually want to know. Also interesting is the combination of
-\&\f(CW\*(C`ev_update_now\*(C'\fR and \f(CW\*(C`ev_now\*(C'\fR.
-.IP "ev_sleep (ev_tstamp interval)" 4
-.IX Item "ev_sleep (ev_tstamp interval)"
-Sleep for the given interval: The current thread will be blocked until
-either it is interrupted or the given time interval has passed. Basically
-this is a sub-second-resolution \f(CW\*(C`sleep ()\*(C'\fR.
-.IP "int ev_version_major ()" 4
-.IX Item "int ev_version_major ()"
-.PD 0
-.IP "int ev_version_minor ()" 4
-.IX Item "int ev_version_minor ()"
-.PD
-You can find out the major and minor \s-1ABI\s0 version numbers of the library
-you linked against by calling the functions \f(CW\*(C`ev_version_major\*(C'\fR and
-\&\f(CW\*(C`ev_version_minor\*(C'\fR. If you want, you can compare against the global
-symbols \f(CW\*(C`EV_VERSION_MAJOR\*(C'\fR and \f(CW\*(C`EV_VERSION_MINOR\*(C'\fR, which specify the
-version of the library your program was compiled against.
-.Sp
-These version numbers refer to the \s-1ABI\s0 version of the library, not the
-release version.
-.Sp
-Usually, it's a good idea to terminate if the major versions mismatch,
-as this indicates an incompatible change. Minor versions are usually
-compatible to older versions, so a larger minor version alone is usually
-not a problem.
-.Sp
-Example: Make sure we haven't accidentally been linked against the wrong
-version (note, however, that this will not detect other \s-1ABI\s0 mismatches,
-such as \s-1LFS\s0 or reentrancy).
-.Sp
-.Vb 3
-\& assert (("libev version mismatch",
-\& ev_version_major () == EV_VERSION_MAJOR
-\& && ev_version_minor () >= EV_VERSION_MINOR));
-.Ve
-.IP "unsigned int ev_supported_backends ()" 4
-.IX Item "unsigned int ev_supported_backends ()"
-Return the set of all backends (i.e. their corresponding \f(CW\*(C`EV_BACKEND_*\*(C'\fR
-value) compiled into this binary of libev (independent of their
-availability on the system you are running on). See \f(CW\*(C`ev_default_loop\*(C'\fR for
-a description of the set values.
-.Sp
-Example: make sure we have the epoll method, because yeah this is cool and
-a must have and can we have a torrent of it please!!!11
-.Sp
-.Vb 2
-\& assert (("sorry, no epoll, no sex",
-\& ev_supported_backends () & EVBACKEND_EPOLL));
-.Ve
-.IP "unsigned int ev_recommended_backends ()" 4
-.IX Item "unsigned int ev_recommended_backends ()"
-Return the set of all backends compiled into this binary of libev and
-also recommended for this platform, meaning it will work for most file
-descriptor types. This set is often smaller than the one returned by
-\&\f(CW\*(C`ev_supported_backends\*(C'\fR, as for example kqueue is broken on most BSDs
-and will not be auto-detected unless you explicitly request it (assuming
-you know what you are doing). This is the set of backends that libev will
-probe for if you specify no backends explicitly.
-.IP "unsigned int ev_embeddable_backends ()" 4
-.IX Item "unsigned int ev_embeddable_backends ()"
-Returns the set of backends that are embeddable in other event loops. This
-value is platform-specific but can include backends not available on the
-current system. To find which embeddable backends might be supported on
-the current system, you would need to look at \f(CW\*(C`ev_embeddable_backends ()
-& ev_supported_backends ()\*(C'\fR, likewise for recommended ones.
-.Sp
-See the description of \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.IP "ev_set_allocator (void *(*cb)(void *ptr, long size))" 4
-.IX Item "ev_set_allocator (void *(*cb)(void *ptr, long size))"
-Sets the allocation function to use (the prototype is similar \- the
-semantics are identical to the \f(CW\*(C`realloc\*(C'\fR C89/SuS/POSIX function). It is
-used to allocate and free memory (no surprises here). If it returns zero
-when memory needs to be allocated (\f(CW\*(C`size != 0\*(C'\fR), the library might abort
-or take some potentially destructive action.
-.Sp
-Since some systems (at least OpenBSD and Darwin) fail to implement
-correct \f(CW\*(C`realloc\*(C'\fR semantics, libev will use a wrapper around the system
-\&\f(CW\*(C`realloc\*(C'\fR and \f(CW\*(C`free\*(C'\fR functions by default.
-.Sp
-You could override this function in high-availability programs to, say,
-free some memory if it cannot allocate memory, to use a special allocator,
-or even to sleep a while and retry until some memory is available.
-.Sp
-Example: Replace the libev allocator with one that waits a bit and then
-retries (example requires a standards-compliant \f(CW\*(C`realloc\*(C'\fR).
-.Sp
-.Vb 6
-\& static void *
-\& persistent_realloc (void *ptr, size_t size)
-\& {
-\& for (;;)
-\& {
-\& void *newptr = realloc (ptr, size);
-\&
-\& if (newptr)
-\& return newptr;
-\&
-\& sleep (60);
-\& }
-\& }
-\&
-\& ...
-\& ev_set_allocator (persistent_realloc);
-.Ve
-.IP "ev_set_syserr_cb (void (*cb)(const char *msg))" 4
-.IX Item "ev_set_syserr_cb (void (*cb)(const char *msg))"
-Set the callback function to call on a retryable system call error (such
-as failed select, poll, epoll_wait). The message is a printable string
-indicating the system call or subsystem causing the problem. If this
-callback is set, then libev will expect it to remedy the situation, no
-matter what, when it returns. That is, libev will generally retry the
-requested operation, or, if the condition doesn't go away, do bad stuff
-(such as abort).
-.Sp
-Example: This is basically the same thing that libev does internally, too.
-.Sp
-.Vb 6
-\& static void
-\& fatal_error (const char *msg)
-\& {
-\& perror (msg);
-\& abort ();
-\& }
-\&
-\& ...
-\& ev_set_syserr_cb (fatal_error);
-.Ve
-.IP "ev_feed_signal (int signum)" 4
-.IX Item "ev_feed_signal (int signum)"
-This function can be used to \*(L"simulate\*(R" a signal receive. It is completely
-safe to call this function at any time, from any context, including signal
-handlers or random threads.
-.Sp
-Its main use is to customise signal handling in your process, especially
-in the presence of threads. For example, you could block signals
-by default in all threads (and specifying \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR when
-creating any loops), and in one thread, use \f(CW\*(C`sigwait\*(C'\fR or any other
-mechanism to wait for signals, then \*(L"deliver\*(R" them to libev by calling
-\&\f(CW\*(C`ev_feed_signal\*(C'\fR.
-.SH "FUNCTIONS CONTROLLING EVENT LOOPS"
-.IX Header "FUNCTIONS CONTROLLING EVENT LOOPS"
-An event loop is described by a \f(CW\*(C`struct ev_loop *\*(C'\fR (the \f(CW\*(C`struct\*(C'\fR is
-\&\fInot\fR optional in this case unless libev 3 compatibility is disabled, as
-libev 3 had an \f(CW\*(C`ev_loop\*(C'\fR function colliding with the struct name).
-.PP
-The library knows two types of such loops, the \fIdefault\fR loop, which
-supports child process events, and dynamically created event loops which
-do not.
-.IP "struct ev_loop *ev_default_loop (unsigned int flags)" 4
-.IX Item "struct ev_loop *ev_default_loop (unsigned int flags)"
-This returns the \*(L"default\*(R" event loop object, which is what you should
-normally use when you just need \*(L"the event loop\*(R". Event loop objects and
-the \f(CW\*(C`flags\*(C'\fR parameter are described in more detail in the entry for
-\&\f(CW\*(C`ev_loop_new\*(C'\fR.
-.Sp
-If the default loop is already initialised then this function simply
-returns it (and ignores the flags. If that is troubling you, check
-\&\f(CW\*(C`ev_backend ()\*(C'\fR afterwards). Otherwise it will create it with the given
-flags, which should almost always be \f(CW0\fR, unless the caller is also the
-one calling \f(CW\*(C`ev_run\*(C'\fR or otherwise qualifies as \*(L"the main program\*(R".
-.Sp
-If you don't know what event loop to use, use the one returned from this
-function (or via the \f(CW\*(C`EV_DEFAULT\*(C'\fR macro).
-.Sp
-Note that this function is \fInot\fR thread-safe, so if you want to use it
-from multiple threads, you have to employ some kind of mutex (note also
-that this case is unlikely, as loops cannot be shared easily between
-threads anyway).
-.Sp
-The default loop is the only loop that can handle \f(CW\*(C`ev_child\*(C'\fR watchers,
-and to do this, it always registers a handler for \f(CW\*(C`SIGCHLD\*(C'\fR. If this is
-a problem for your application you can either create a dynamic loop with
-\&\f(CW\*(C`ev_loop_new\*(C'\fR which doesn't do that, or you can simply overwrite the
-\&\f(CW\*(C`SIGCHLD\*(C'\fR signal handler \fIafter\fR calling \f(CW\*(C`ev_default_init\*(C'\fR.
-.Sp
-Example: This is the most typical usage.
-.Sp
-.Vb 2
-\& if (!ev_default_loop (0))
-\& fatal ("could not initialise libev, bad $LIBEV_FLAGS in environment?");
-.Ve
-.Sp
-Example: Restrict libev to the select and poll backends, and do not allow
-environment settings to be taken into account:
-.Sp
-.Vb 1
-\& ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV);
-.Ve
-.IP "struct ev_loop *ev_loop_new (unsigned int flags)" 4
-.IX Item "struct ev_loop *ev_loop_new (unsigned int flags)"
-This will create and initialise a new event loop object. If the loop
-could not be initialised, returns false.
-.Sp
-This function is thread-safe, and one common way to use libev with
-threads is indeed to create one loop per thread, and using the default
-loop in the \*(L"main\*(R" or \*(L"initial\*(R" thread.
-.Sp
-The flags argument can be used to specify special behaviour or specific
-backends to use, and is usually specified as \f(CW0\fR (or \f(CW\*(C`EVFLAG_AUTO\*(C'\fR).
-.Sp
-The following flags are supported:
-.RS 4
-.ie n .IP """EVFLAG_AUTO""" 4
-.el .IP "\f(CWEVFLAG_AUTO\fR" 4
-.IX Item "EVFLAG_AUTO"
-The default flags value. Use this if you have no clue (it's the right
-thing, believe me).
-.ie n .IP """EVFLAG_NOENV""" 4
-.el .IP "\f(CWEVFLAG_NOENV\fR" 4
-.IX Item "EVFLAG_NOENV"
-If this flag bit is or'ed into the flag value (or the program runs setuid
-or setgid) then libev will \fInot\fR look at the environment variable
-\&\f(CW\*(C`LIBEV_FLAGS\*(C'\fR. Otherwise (the default), this environment variable will
-override the flags completely if it is found in the environment. This is
-useful to try out specific backends to test their performance, or to work
-around bugs.
-.ie n .IP """EVFLAG_FORKCHECK""" 4
-.el .IP "\f(CWEVFLAG_FORKCHECK\fR" 4
-.IX Item "EVFLAG_FORKCHECK"
-Instead of calling \f(CW\*(C`ev_loop_fork\*(C'\fR manually after a fork, you can also
-make libev check for a fork in each iteration by enabling this flag.
-.Sp
-This works by calling \f(CW\*(C`getpid ()\*(C'\fR on every iteration of the loop,
-and thus this might slow down your event loop if you do a lot of loop
-iterations and little real work, but is usually not noticeable (on my
-GNU/Linux system for example, \f(CW\*(C`getpid\*(C'\fR is actually a simple 5\-insn sequence
-without a system call and thus \fIvery\fR fast, but my GNU/Linux system also has
-\&\f(CW\*(C`pthread_atfork\*(C'\fR which is even faster).
-.Sp
-The big advantage of this flag is that you can forget about fork (and
-forget about forgetting to tell libev about forking) when you use this
-flag.
-.Sp
-This flag setting cannot be overridden or specified in the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR
-environment variable.
-.ie n .IP """EVFLAG_NOINOTIFY""" 4
-.el .IP "\f(CWEVFLAG_NOINOTIFY\fR" 4
-.IX Item "EVFLAG_NOINOTIFY"
-When this flag is specified, then libev will not attempt to use the
-\&\fIinotify\fR \s-1API\s0 for its \f(CW\*(C`ev_stat\*(C'\fR watchers. Apart from debugging and
-testing, this flag can be useful to conserve inotify file descriptors, as
-otherwise each loop using \f(CW\*(C`ev_stat\*(C'\fR watchers consumes one inotify handle.
-.ie n .IP """EVFLAG_SIGNALFD""" 4
-.el .IP "\f(CWEVFLAG_SIGNALFD\fR" 4
-.IX Item "EVFLAG_SIGNALFD"
-When this flag is specified, then libev will attempt to use the
-\&\fIsignalfd\fR \s-1API\s0 for its \f(CW\*(C`ev_signal\*(C'\fR (and \f(CW\*(C`ev_child\*(C'\fR) watchers. This \s-1API\s0
-delivers signals synchronously, which makes it both faster and might make
-it possible to get the queued signal data. It can also simplify signal
-handling with threads, as long as you properly block signals in your
-threads that are not interested in handling them.
-.Sp
-Signalfd will not be used by default as this changes your signal mask, and
-there are a lot of shoddy libraries and programs (glib's threadpool for
-example) that can't properly initialise their signal masks.
-.ie n .IP """EVFLAG_NOSIGMASK""" 4
-.el .IP "\f(CWEVFLAG_NOSIGMASK\fR" 4
-.IX Item "EVFLAG_NOSIGMASK"
-When this flag is specified, then libev will avoid to modify the signal
-mask. Specifically, this means you ahve to make sure signals are unblocked
-when you want to receive them.
-.Sp
-This behaviour is useful when you want to do your own signal handling, or
-want to handle signals only in specific threads and want to avoid libev
-unblocking the signals.
-.Sp
-It's also required by \s-1POSIX\s0 in a threaded program, as libev calls
-\&\f(CW\*(C`sigprocmask\*(C'\fR, whose behaviour is officially unspecified.
-.Sp
-This flag's behaviour will become the default in future versions of libev.
-.ie n .IP """EVBACKEND_SELECT"" (value 1, portable select backend)" 4
-.el .IP "\f(CWEVBACKEND_SELECT\fR (value 1, portable select backend)" 4
-.IX Item "EVBACKEND_SELECT (value 1, portable select backend)"
-This is your standard \fIselect\fR\|(2) backend. Not \fIcompletely\fR standard, as
-libev tries to roll its own fd_set with no limits on the number of fds,
-but if that fails, expect a fairly low limit on the number of fds when
-using this backend. It doesn't scale too well (O(highest_fd)), but its
-usually the fastest backend for a low number of (low-numbered :) fds.
-.Sp
-To get good performance out of this backend you need a high amount of
-parallelism (most of the file descriptors should be busy). If you are
-writing a server, you should \f(CW\*(C`accept ()\*(C'\fR in a loop to accept as many
-connections as possible during one iteration. You might also want to have
-a look at \f(CW\*(C`ev_set_io_collect_interval ()\*(C'\fR to increase the amount of
-readiness notifications you get per iteration.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR to the \f(CW\*(C`readfds\*(C'\fR set and \f(CW\*(C`EV_WRITE\*(C'\fR to the
-\&\f(CW\*(C`writefds\*(C'\fR set (and to work around Microsoft Windows bugs, also onto the
-\&\f(CW\*(C`exceptfds\*(C'\fR set on that platform).
-.ie n .IP """EVBACKEND_POLL"" (value 2, poll backend, available everywhere except on windows)" 4
-.el .IP "\f(CWEVBACKEND_POLL\fR (value 2, poll backend, available everywhere except on windows)" 4
-.IX Item "EVBACKEND_POLL (value 2, poll backend, available everywhere except on windows)"
-And this is your standard \fIpoll\fR\|(2) backend. It's more complicated
-than select, but handles sparse fds better and has no artificial
-limit on the number of fds you can use (except it will slow down
-considerably with a lot of inactive fds). It scales similarly to select,
-i.e. O(total_fds). See the entry for \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR, above, for
-performance tips.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR to \f(CW\*(C`POLLIN | POLLERR | POLLHUP\*(C'\fR, and
-\&\f(CW\*(C`EV_WRITE\*(C'\fR to \f(CW\*(C`POLLOUT | POLLERR | POLLHUP\*(C'\fR.
-.ie n .IP """EVBACKEND_EPOLL"" (value 4, Linux)" 4
-.el .IP "\f(CWEVBACKEND_EPOLL\fR (value 4, Linux)" 4
-.IX Item "EVBACKEND_EPOLL (value 4, Linux)"
-Use the linux-specific \fIepoll\fR\|(7) interface (for both pre\- and post\-2.6.9
-kernels).
-.Sp
-For few fds, this backend is a bit little slower than poll and select,
-but it scales phenomenally better. While poll and select usually scale
-like O(total_fds) where n is the total number of fds (or the highest fd),
-epoll scales either O(1) or O(active_fds).
-.Sp
-The epoll mechanism deserves honorable mention as the most misdesigned
-of the more advanced event mechanisms: mere annoyances include silently
-dropping file descriptors, requiring a system call per change per file
-descriptor (and unnecessary guessing of parameters), problems with dup,
-returning before the timeout value, resulting in additional iterations
-(and only giving 5ms accuracy while select on the same platform gives
-0.1ms) and so on. The biggest issue is fork races, however \- if a program
-forks then \fIboth\fR parent and child process have to recreate the epoll
-set, which can take considerable time (one syscall per file descriptor)
-and is of course hard to detect.
-.Sp
-Epoll is also notoriously buggy \- embedding epoll fds \fIshould\fR work, but
-of course \fIdoesn't\fR, and epoll just loves to report events for totally
-\&\fIdifferent\fR file descriptors (even already closed ones, so one cannot
-even remove them from the set) than registered in the set (especially
-on \s-1SMP\s0 systems). Libev tries to counter these spurious notifications by
-employing an additional generation counter and comparing that against the
-events to filter out spurious ones, recreating the set when required. Last
-not least, it also refuses to work with some file descriptors which work
-perfectly fine with \f(CW\*(C`select\*(C'\fR (files, many character devices...).
-.Sp
-Epoll is truly the train wreck analog among event poll mechanisms,
-a frankenpoll, cobbled together in a hurry, no thought to design or
-interaction with others.
-.Sp
-While stopping, setting and starting an I/O watcher in the same iteration
-will result in some caching, there is still a system call per such
-incident (because the same \fIfile descriptor\fR could point to a different
-\&\fIfile description\fR now), so its best to avoid that. Also, \f(CW\*(C`dup ()\*(C'\fR'ed
-file descriptors might not work very well if you register events for both
-file descriptors.
-.Sp
-Best performance from this backend is achieved by not unregistering all
-watchers for a file descriptor until it has been closed, if possible,
-i.e. keep at least one watcher active per fd at all times. Stopping and
-starting a watcher (without re-setting it) also usually doesn't cause
-extra overhead. A fork can both result in spurious notifications as well
-as in libev having to destroy and recreate the epoll object, which can
-take considerable time and thus should be avoided.
-.Sp
-All this means that, in practice, \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR can be as fast or
-faster than epoll for maybe up to a hundred file descriptors, depending on
-the usage. So sad.
-.Sp
-While nominally embeddable in other event loops, this feature is broken in
-all kernel versions tested so far.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR and \f(CW\*(C`EV_WRITE\*(C'\fR in the same way as
-\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.ie n .IP """EVBACKEND_KQUEUE"" (value 8, most \s-1BSD\s0 clones)" 4
-.el .IP "\f(CWEVBACKEND_KQUEUE\fR (value 8, most \s-1BSD\s0 clones)" 4
-.IX Item "EVBACKEND_KQUEUE (value 8, most BSD clones)"
-Kqueue deserves special mention, as at the time of this writing, it
-was broken on all BSDs except NetBSD (usually it doesn't work reliably
-with anything but sockets and pipes, except on Darwin, where of course
-it's completely useless). Unlike epoll, however, whose brokenness
-is by design, these kqueue bugs can (and eventually will) be fixed
-without \s-1API\s0 changes to existing programs. For this reason it's not being
-\&\*(L"auto-detected\*(R" unless you explicitly specify it in the flags (i.e. using
-\&\f(CW\*(C`EVBACKEND_KQUEUE\*(C'\fR) or libev was compiled on a known-to-be-good (\-enough)
-system like NetBSD.
-.Sp
-You still can embed kqueue into a normal poll or select backend and use it
-only for sockets (after having made sure that sockets work with kqueue on
-the target platform). See \f(CW\*(C`ev_embed\*(C'\fR watchers for more info.
-.Sp
-It scales in the same way as the epoll backend, but the interface to the
-kernel is more efficient (which says nothing about its actual speed, of
-course). While stopping, setting and starting an I/O watcher does never
-cause an extra system call as with \f(CW\*(C`EVBACKEND_EPOLL\*(C'\fR, it still adds up to
-two event changes per incident. Support for \f(CW\*(C`fork ()\*(C'\fR is very bad (but
-sane, unlike epoll) and it drops fds silently in similarly hard-to-detect
-cases
-.Sp
-This backend usually performs well under most conditions.
-.Sp
-While nominally embeddable in other event loops, this doesn't work
-everywhere, so you might need to test for this. And since it is broken
-almost everywhere, you should only use it when you have a lot of sockets
-(for which it usually works), by embedding it into another event loop
-(e.g. \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR (but \f(CW\*(C`poll\*(C'\fR is of course
-also broken on \s-1OS\s0 X)) and, did I mention it, using it only for sockets.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR into an \f(CW\*(C`EVFILT_READ\*(C'\fR kevent with
-\&\f(CW\*(C`NOTE_EOF\*(C'\fR, and \f(CW\*(C`EV_WRITE\*(C'\fR into an \f(CW\*(C`EVFILT_WRITE\*(C'\fR kevent with
-\&\f(CW\*(C`NOTE_EOF\*(C'\fR.
-.ie n .IP """EVBACKEND_DEVPOLL"" (value 16, Solaris 8)" 4
-.el .IP "\f(CWEVBACKEND_DEVPOLL\fR (value 16, Solaris 8)" 4
-.IX Item "EVBACKEND_DEVPOLL (value 16, Solaris 8)"
-This is not implemented yet (and might never be, unless you send me an
-implementation). According to reports, \f(CW\*(C`/dev/poll\*(C'\fR only supports sockets
-and is not embeddable, which would limit the usefulness of this backend
-immensely.
-.ie n .IP """EVBACKEND_PORT"" (value 32, Solaris 10)" 4
-.el .IP "\f(CWEVBACKEND_PORT\fR (value 32, Solaris 10)" 4
-.IX Item "EVBACKEND_PORT (value 32, Solaris 10)"
-This uses the Solaris 10 event port mechanism. As with everything on Solaris,
-it's really slow, but it still scales very well (O(active_fds)).
-.Sp
-While this backend scales well, it requires one system call per active
-file descriptor per loop iteration. For small and medium numbers of file
-descriptors a \*(L"slow\*(R" \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR backend
-might perform better.
-.Sp
-On the positive side, this backend actually performed fully to
-specification in all tests and is fully embeddable, which is a rare feat
-among the OS-specific backends (I vastly prefer correctness over speed
-hacks).
-.Sp
-On the negative side, the interface is \fIbizarre\fR \- so bizarre that
-even sun itself gets it wrong in their code examples: The event polling
-function sometimes returning events to the caller even though an error
-occurred, but with no indication whether it has done so or not (yes, it's
-even documented that way) \- deadly for edge-triggered interfaces where
-you absolutely have to know whether an event occurred or not because you
-have to re-arm the watcher.
-.Sp
-Fortunately libev seems to be able to work around these idiocies.
-.Sp
-This backend maps \f(CW\*(C`EV_READ\*(C'\fR and \f(CW\*(C`EV_WRITE\*(C'\fR in the same way as
-\&\f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.ie n .IP """EVBACKEND_ALL""" 4
-.el .IP "\f(CWEVBACKEND_ALL\fR" 4
-.IX Item "EVBACKEND_ALL"
-Try all backends (even potentially broken ones that wouldn't be tried
-with \f(CW\*(C`EVFLAG_AUTO\*(C'\fR). Since this is a mask, you can do stuff such as
-\&\f(CW\*(C`EVBACKEND_ALL & ~EVBACKEND_KQUEUE\*(C'\fR.
-.Sp
-It is definitely not recommended to use this flag, use whatever
-\&\f(CW\*(C`ev_recommended_backends ()\*(C'\fR returns, or simply do not specify a backend
-at all.
-.ie n .IP """EVBACKEND_MASK""" 4
-.el .IP "\f(CWEVBACKEND_MASK\fR" 4
-.IX Item "EVBACKEND_MASK"
-Not a backend at all, but a mask to select all backend bits from a
-\&\f(CW\*(C`flags\*(C'\fR value, in case you want to mask out any backends from a flags
-value (e.g. when modifying the \f(CW\*(C`LIBEV_FLAGS\*(C'\fR environment variable).
-.RE
-.RS 4
-.Sp
-If one or more of the backend flags are or'ed into the flags value,
-then only these backends will be tried (in the reverse order as listed
-here). If none are specified, all backends in \f(CW\*(C`ev_recommended_backends
-()\*(C'\fR will be tried.
-.Sp
-Example: Try to create a event loop that uses epoll and nothing else.
-.Sp
-.Vb 3
-\& struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV);
-\& if (!epoller)
-\& fatal ("no epoll found here, maybe it hides under your chair");
-.Ve
-.Sp
-Example: Use whatever libev has to offer, but make sure that kqueue is
-used if available.
-.Sp
-.Vb 1
-\& struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE);
-.Ve
-.RE
-.IP "ev_loop_destroy (loop)" 4
-.IX Item "ev_loop_destroy (loop)"
-Destroys an event loop object (frees all memory and kernel state
-etc.). None of the active event watchers will be stopped in the normal
-sense, so e.g. \f(CW\*(C`ev_is_active\*(C'\fR might still return true. It is your
-responsibility to either stop all watchers cleanly yourself \fIbefore\fR
-calling this function, or cope with the fact afterwards (which is usually
-the easiest thing, you can just ignore the watchers and/or \f(CW\*(C`free ()\*(C'\fR them
-for example).
-.Sp
-Note that certain global state, such as signal state (and installed signal
-handlers), will not be freed by this function, and related watchers (such
-as signal and child watchers) would need to be stopped manually.
-.Sp
-This function is normally used on loop objects allocated by
-\&\f(CW\*(C`ev_loop_new\*(C'\fR, but it can also be used on the default loop returned by
-\&\f(CW\*(C`ev_default_loop\*(C'\fR, in which case it is not thread-safe.
-.Sp
-Note that it is not advisable to call this function on the default loop
-except in the rare occasion where you really need to free its resources.
-If you need dynamically allocated loops it is better to use \f(CW\*(C`ev_loop_new\*(C'\fR
-and \f(CW\*(C`ev_loop_destroy\*(C'\fR.
-.IP "ev_loop_fork (loop)" 4
-.IX Item "ev_loop_fork (loop)"
-This function sets a flag that causes subsequent \f(CW\*(C`ev_run\*(C'\fR iterations to
-reinitialise the kernel state for backends that have one. Despite the
-name, you can call it anytime, but it makes most sense after forking, in
-the child process. You \fImust\fR call it (or use \f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR) in the
-child before resuming or calling \f(CW\*(C`ev_run\*(C'\fR.
-.Sp
-Again, you \fIhave\fR to call it on \fIany\fR loop that you want to re-use after
-a fork, \fIeven if you do not plan to use the loop in the parent\fR. This is
-because some kernel interfaces *cough* \fIkqueue\fR *cough* do funny things
-during fork.
-.Sp
-On the other hand, you only need to call this function in the child
-process if and only if you want to use the event loop in the child. If
-you just fork+exec or create a new loop in the child, you don't have to
-call it at all (in fact, \f(CW\*(C`epoll\*(C'\fR is so badly broken that it makes a
-difference, but libev will usually detect this case on its own and do a
-costly reset of the backend).
-.Sp
-The function itself is quite fast and it's usually not a problem to call
-it just in case after a fork.
-.Sp
-Example: Automate calling \f(CW\*(C`ev_loop_fork\*(C'\fR on the default loop when
-using pthreads.
-.Sp
-.Vb 5
-\& static void
-\& post_fork_child (void)
-\& {
-\& ev_loop_fork (EV_DEFAULT);
-\& }
-\&
-\& ...
-\& pthread_atfork (0, 0, post_fork_child);
-.Ve
-.IP "int ev_is_default_loop (loop)" 4
-.IX Item "int ev_is_default_loop (loop)"
-Returns true when the given loop is, in fact, the default loop, and false
-otherwise.
-.IP "unsigned int ev_iteration (loop)" 4
-.IX Item "unsigned int ev_iteration (loop)"
-Returns the current iteration count for the event loop, which is identical
-to the number of times libev did poll for new events. It starts at \f(CW0\fR
-and happily wraps around with enough iterations.
-.Sp
-This value can sometimes be useful as a generation counter of sorts (it
-\&\*(L"ticks\*(R" the number of loop iterations), as it roughly corresponds with
-\&\f(CW\*(C`ev_prepare\*(C'\fR and \f(CW\*(C`ev_check\*(C'\fR calls \- and is incremented between the
-prepare and check phases.
-.IP "unsigned int ev_depth (loop)" 4
-.IX Item "unsigned int ev_depth (loop)"
-Returns the number of times \f(CW\*(C`ev_run\*(C'\fR was entered minus the number of
-times \f(CW\*(C`ev_run\*(C'\fR was exited normally, in other words, the recursion depth.
-.Sp
-Outside \f(CW\*(C`ev_run\*(C'\fR, this number is zero. In a callback, this number is
-\&\f(CW1\fR, unless \f(CW\*(C`ev_run\*(C'\fR was invoked recursively (or from another thread),
-in which case it is higher.
-.Sp
-Leaving \f(CW\*(C`ev_run\*(C'\fR abnormally (setjmp/longjmp, cancelling the thread,
-throwing an exception etc.), doesn't count as \*(L"exit\*(R" \- consider this
-as a hint to avoid such ungentleman-like behaviour unless it's really
-convenient, in which case it is fully supported.
-.IP "unsigned int ev_backend (loop)" 4
-.IX Item "unsigned int ev_backend (loop)"
-Returns one of the \f(CW\*(C`EVBACKEND_*\*(C'\fR flags indicating the event backend in
-use.
-.IP "ev_tstamp ev_now (loop)" 4
-.IX Item "ev_tstamp ev_now (loop)"
-Returns the current \*(L"event loop time\*(R", which is the time the event loop
-received events and started processing them. This timestamp does not
-change as long as callbacks are being processed, and this is also the base
-time used for relative timers. You can treat it as the timestamp of the
-event occurring (or more correctly, libev finding out about it).
-.IP "ev_now_update (loop)" 4
-.IX Item "ev_now_update (loop)"
-Establishes the current time by querying the kernel, updating the time
-returned by \f(CW\*(C`ev_now ()\*(C'\fR in the progress. This is a costly operation and
-is usually done automatically within \f(CW\*(C`ev_run ()\*(C'\fR.
-.Sp
-This function is rarely useful, but when some event callback runs for a
-very long time without entering the event loop, updating libev's idea of
-the current time is a good idea.
-.Sp
-See also \*(L"The special problem of time updates\*(R" in the \f(CW\*(C`ev_timer\*(C'\fR section.
-.IP "ev_suspend (loop)" 4
-.IX Item "ev_suspend (loop)"
-.PD 0
-.IP "ev_resume (loop)" 4
-.IX Item "ev_resume (loop)"
-.PD
-These two functions suspend and resume an event loop, for use when the
-loop is not used for a while and timeouts should not be processed.
-.Sp
-A typical use case would be an interactive program such as a game: When
-the user presses \f(CW\*(C`^Z\*(C'\fR to suspend the game and resumes it an hour later it
-would be best to handle timeouts as if no time had actually passed while
-the program was suspended. This can be achieved by calling \f(CW\*(C`ev_suspend\*(C'\fR
-in your \f(CW\*(C`SIGTSTP\*(C'\fR handler, sending yourself a \f(CW\*(C`SIGSTOP\*(C'\fR and calling
-\&\f(CW\*(C`ev_resume\*(C'\fR directly afterwards to resume timer processing.
-.Sp
-Effectively, all \f(CW\*(C`ev_timer\*(C'\fR watchers will be delayed by the time spend
-between \f(CW\*(C`ev_suspend\*(C'\fR and \f(CW\*(C`ev_resume\*(C'\fR, and all \f(CW\*(C`ev_periodic\*(C'\fR watchers
-will be rescheduled (that is, they will lose any events that would have
-occurred while suspended).
-.Sp
-After calling \f(CW\*(C`ev_suspend\*(C'\fR you \fBmust not\fR call \fIany\fR function on the
-given loop other than \f(CW\*(C`ev_resume\*(C'\fR, and you \fBmust not\fR call \f(CW\*(C`ev_resume\*(C'\fR
-without a previous call to \f(CW\*(C`ev_suspend\*(C'\fR.
-.Sp
-Calling \f(CW\*(C`ev_suspend\*(C'\fR/\f(CW\*(C`ev_resume\*(C'\fR has the side effect of updating the
-event loop time (see \f(CW\*(C`ev_now_update\*(C'\fR).
-.IP "ev_run (loop, int flags)" 4
-.IX Item "ev_run (loop, int flags)"
-Finally, this is it, the event handler. This function usually is called
-after you have initialised all your watchers and you want to start
-handling events. It will ask the operating system for any new events, call
-the watcher callbacks, an then repeat the whole process indefinitely: This
-is why event loops are called \fIloops\fR.
-.Sp
-If the flags argument is specified as \f(CW0\fR, it will keep handling events
-until either no event watchers are active anymore or \f(CW\*(C`ev_break\*(C'\fR was
-called.
-.Sp
-Please note that an explicit \f(CW\*(C`ev_break\*(C'\fR is usually better than
-relying on all watchers to be stopped when deciding when a program has
-finished (especially in interactive programs), but having a program
-that automatically loops as long as it has to and no longer by virtue
-of relying on its watchers stopping correctly, that is truly a thing of
-beauty.
-.Sp
-This function is also \fImostly\fR exception-safe \- you can break out of
-a \f(CW\*(C`ev_run\*(C'\fR call by calling \f(CW\*(C`longjmp\*(C'\fR in a callback, throwing a \*(C+
-exception and so on. This does not decrement the \f(CW\*(C`ev_depth\*(C'\fR value, nor
-will it clear any outstanding \f(CW\*(C`EVBREAK_ONE\*(C'\fR breaks.
-.Sp
-A flags value of \f(CW\*(C`EVRUN_NOWAIT\*(C'\fR will look for new events, will handle
-those events and any already outstanding ones, but will not wait and
-block your process in case there are no events and will return after one
-iteration of the loop. This is sometimes useful to poll and handle new
-events while doing lengthy calculations, to keep the program responsive.
-.Sp
-A flags value of \f(CW\*(C`EVRUN_ONCE\*(C'\fR will look for new events (waiting if
-necessary) and will handle those and any already outstanding ones. It
-will block your process until at least one new event arrives (which could
-be an event internal to libev itself, so there is no guarantee that a
-user-registered callback will be called), and will return after one
-iteration of the loop.
-.Sp
-This is useful if you are waiting for some external event in conjunction
-with something not expressible using other libev watchers (i.e. "roll your
-own \f(CW\*(C`ev_run\*(C'\fR"). However, a pair of \f(CW\*(C`ev_prepare\*(C'\fR/\f(CW\*(C`ev_check\*(C'\fR watchers is
-usually a better approach for this kind of thing.
-.Sp
-Here are the gory details of what \f(CW\*(C`ev_run\*(C'\fR does:
-.Sp
-.Vb 10
-\& \- Increment loop depth.
-\& \- Reset the ev_break status.
-\& \- Before the first iteration, call any pending watchers.
-\& LOOP:
-\& \- If EVFLAG_FORKCHECK was used, check for a fork.
-\& \- If a fork was detected (by any means), queue and call all fork watchers.
-\& \- Queue and call all prepare watchers.
-\& \- If ev_break was called, goto FINISH.
-\& \- If we have been forked, detach and recreate the kernel state
-\& as to not disturb the other process.
-\& \- Update the kernel state with all outstanding changes.
-\& \- Update the "event loop time" (ev_now ()).
-\& \- Calculate for how long to sleep or block, if at all
-\& (active idle watchers, EVRUN_NOWAIT or not having
-\& any active watchers at all will result in not sleeping).
-\& \- Sleep if the I/O and timer collect interval say so.
-\& \- Increment loop iteration counter.
-\& \- Block the process, waiting for any events.
-\& \- Queue all outstanding I/O (fd) events.
-\& \- Update the "event loop time" (ev_now ()), and do time jump adjustments.
-\& \- Queue all expired timers.
-\& \- Queue all expired periodics.
-\& \- Queue all idle watchers with priority higher than that of pending events.
-\& \- Queue all check watchers.
-\& \- Call all queued watchers in reverse order (i.e. check watchers first).
-\& Signals and child watchers are implemented as I/O watchers, and will
-\& be handled here by queueing them when their watcher gets executed.
-\& \- If ev_break has been called, or EVRUN_ONCE or EVRUN_NOWAIT
-\& were used, or there are no active watchers, goto FINISH, otherwise
-\& continue with step LOOP.
-\& FINISH:
-\& \- Reset the ev_break status iff it was EVBREAK_ONE.
-\& \- Decrement the loop depth.
-\& \- Return.
-.Ve
-.Sp
-Example: Queue some jobs and then loop until no events are outstanding
-anymore.
-.Sp
-.Vb 4
-\& ... queue jobs here, make sure they register event watchers as long
-\& ... as they still have work to do (even an idle watcher will do..)
-\& ev_run (my_loop, 0);
-\& ... jobs done or somebody called break. yeah!
-.Ve
-.IP "ev_break (loop, how)" 4
-.IX Item "ev_break (loop, how)"
-Can be used to make a call to \f(CW\*(C`ev_run\*(C'\fR return early (but only after it
-has processed all outstanding events). The \f(CW\*(C`how\*(C'\fR argument must be either
-\&\f(CW\*(C`EVBREAK_ONE\*(C'\fR, which will make the innermost \f(CW\*(C`ev_run\*(C'\fR call return, or
-\&\f(CW\*(C`EVBREAK_ALL\*(C'\fR, which will make all nested \f(CW\*(C`ev_run\*(C'\fR calls return.
-.Sp
-This \*(L"break state\*(R" will be cleared on the next call to \f(CW\*(C`ev_run\*(C'\fR.
-.Sp
-It is safe to call \f(CW\*(C`ev_break\*(C'\fR from outside any \f(CW\*(C`ev_run\*(C'\fR calls, too, in
-which case it will have no effect.
-.IP "ev_ref (loop)" 4
-.IX Item "ev_ref (loop)"
-.PD 0
-.IP "ev_unref (loop)" 4
-.IX Item "ev_unref (loop)"
-.PD
-Ref/unref can be used to add or remove a reference count on the event
-loop: Every watcher keeps one reference, and as long as the reference
-count is nonzero, \f(CW\*(C`ev_run\*(C'\fR will not return on its own.
-.Sp
-This is useful when you have a watcher that you never intend to
-unregister, but that nevertheless should not keep \f(CW\*(C`ev_run\*(C'\fR from
-returning. In such a case, call \f(CW\*(C`ev_unref\*(C'\fR after starting, and \f(CW\*(C`ev_ref\*(C'\fR
-before stopping it.
-.Sp
-As an example, libev itself uses this for its internal signal pipe: It
-is not visible to the libev user and should not keep \f(CW\*(C`ev_run\*(C'\fR from
-exiting if no event watchers registered by it are active. It is also an
-excellent way to do this for generic recurring timers or from within
-third-party libraries. Just remember to \fIunref after start\fR and \fIref
-before stop\fR (but only if the watcher wasn't active before, or was active
-before, respectively. Note also that libev might stop watchers itself
-(e.g. non-repeating timers) in which case you have to \f(CW\*(C`ev_ref\*(C'\fR
-in the callback).
-.Sp
-Example: Create a signal watcher, but keep it from keeping \f(CW\*(C`ev_run\*(C'\fR
-running when nothing else is active.
-.Sp
-.Vb 4
-\& ev_signal exitsig;
-\& ev_signal_init (&exitsig, sig_cb, SIGINT);
-\& ev_signal_start (loop, &exitsig);
-\& ev_unref (loop);
-.Ve
-.Sp
-Example: For some weird reason, unregister the above signal handler again.
-.Sp
-.Vb 2
-\& ev_ref (loop);
-\& ev_signal_stop (loop, &exitsig);
-.Ve
-.IP "ev_set_io_collect_interval (loop, ev_tstamp interval)" 4
-.IX Item "ev_set_io_collect_interval (loop, ev_tstamp interval)"
-.PD 0
-.IP "ev_set_timeout_collect_interval (loop, ev_tstamp interval)" 4
-.IX Item "ev_set_timeout_collect_interval (loop, ev_tstamp interval)"
-.PD
-These advanced functions influence the time that libev will spend waiting
-for events. Both time intervals are by default \f(CW0\fR, meaning that libev
-will try to invoke timer/periodic callbacks and I/O callbacks with minimum
-latency.
-.Sp
-Setting these to a higher value (the \f(CW\*(C`interval\*(C'\fR \fImust\fR be >= \f(CW0\fR)
-allows libev to delay invocation of I/O and timer/periodic callbacks
-to increase efficiency of loop iterations (or to increase power-saving
-opportunities).
-.Sp
-The idea is that sometimes your program runs just fast enough to handle
-one (or very few) event(s) per loop iteration. While this makes the
-program responsive, it also wastes a lot of \s-1CPU\s0 time to poll for new
-events, especially with backends like \f(CW\*(C`select ()\*(C'\fR which have a high
-overhead for the actual polling but can deliver many events at once.
-.Sp
-By setting a higher \fIio collect interval\fR you allow libev to spend more
-time collecting I/O events, so you can handle more events per iteration,
-at the cost of increasing latency. Timeouts (both \f(CW\*(C`ev_periodic\*(C'\fR and
-\&\f(CW\*(C`ev_timer\*(C'\fR) will be not affected. Setting this to a non-null value will
-introduce an additional \f(CW\*(C`ev_sleep ()\*(C'\fR call into most loop iterations. The
-sleep time ensures that libev will not poll for I/O events more often then
-once per this interval, on average.
-.Sp
-Likewise, by setting a higher \fItimeout collect interval\fR you allow libev
-to spend more time collecting timeouts, at the expense of increased
-latency/jitter/inexactness (the watcher callback will be called
-later). \f(CW\*(C`ev_io\*(C'\fR watchers will not be affected. Setting this to a non-null
-value will not introduce any overhead in libev.
-.Sp
-Many (busy) programs can usually benefit by setting the I/O collect
-interval to a value near \f(CW0.1\fR or so, which is often enough for
-interactive servers (of course not for games), likewise for timeouts. It
-usually doesn't make much sense to set it to a lower value than \f(CW0.01\fR,
-as this approaches the timing granularity of most systems. Note that if
-you do transactions with the outside world and you can't increase the
-parallelity, then this setting will limit your transaction rate (if you
-need to poll once per transaction and the I/O collect interval is 0.01,
-then you can't do more than 100 transactions per second).
-.Sp
-Setting the \fItimeout collect interval\fR can improve the opportunity for
-saving power, as the program will \*(L"bundle\*(R" timer callback invocations that
-are \*(L"near\*(R" in time together, by delaying some, thus reducing the number of
-times the process sleeps and wakes up again. Another useful technique to
-reduce iterations/wake\-ups is to use \f(CW\*(C`ev_periodic\*(C'\fR watchers and make sure
-they fire on, say, one-second boundaries only.
-.Sp
-Example: we only need 0.1s timeout granularity, and we wish not to poll
-more often than 100 times per second:
-.Sp
-.Vb 2
-\& ev_set_timeout_collect_interval (EV_DEFAULT_UC_ 0.1);
-\& ev_set_io_collect_interval (EV_DEFAULT_UC_ 0.01);
-.Ve
-.IP "ev_invoke_pending (loop)" 4
-.IX Item "ev_invoke_pending (loop)"
-This call will simply invoke all pending watchers while resetting their
-pending state. Normally, \f(CW\*(C`ev_run\*(C'\fR does this automatically when required,
-but when overriding the invoke callback this call comes handy. This
-function can be invoked from a watcher \- this can be useful for example
-when you want to do some lengthy calculation and want to pass further
-event handling to another thread (you still have to make sure only one
-thread executes within \f(CW\*(C`ev_invoke_pending\*(C'\fR or \f(CW\*(C`ev_run\*(C'\fR of course).
-.IP "int ev_pending_count (loop)" 4
-.IX Item "int ev_pending_count (loop)"
-Returns the number of pending watchers \- zero indicates that no watchers
-are pending.
-.IP "ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(\s-1EV_P\s0))" 4
-.IX Item "ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(EV_P))"
-This overrides the invoke pending functionality of the loop: Instead of
-invoking all pending watchers when there are any, \f(CW\*(C`ev_run\*(C'\fR will call
-this callback instead. This is useful, for example, when you want to
-invoke the actual watchers inside another context (another thread etc.).
-.Sp
-If you want to reset the callback, use \f(CW\*(C`ev_invoke_pending\*(C'\fR as new
-callback.
-.IP "ev_set_loop_release_cb (loop, void (*release)(\s-1EV_P\s0), void (*acquire)(\s-1EV_P\s0))" 4
-.IX Item "ev_set_loop_release_cb (loop, void (*release)(EV_P), void (*acquire)(EV_P))"
-Sometimes you want to share the same loop between multiple threads. This
-can be done relatively simply by putting mutex_lock/unlock calls around
-each call to a libev function.
-.Sp
-However, \f(CW\*(C`ev_run\*(C'\fR can run an indefinite time, so it is not feasible
-to wait for it to return. One way around this is to wake up the event
-loop via \f(CW\*(C`ev_break\*(C'\fR and \f(CW\*(C`av_async_send\*(C'\fR, another way is to set these
-\&\fIrelease\fR and \fIacquire\fR callbacks on the loop.
-.Sp
-When set, then \f(CW\*(C`release\*(C'\fR will be called just before the thread is
-suspended waiting for new events, and \f(CW\*(C`acquire\*(C'\fR is called just
-afterwards.
-.Sp
-Ideally, \f(CW\*(C`release\*(C'\fR will just call your mutex_unlock function, and
-\&\f(CW\*(C`acquire\*(C'\fR will just call the mutex_lock function again.
-.Sp
-While event loop modifications are allowed between invocations of
-\&\f(CW\*(C`release\*(C'\fR and \f(CW\*(C`acquire\*(C'\fR (that's their only purpose after all), no
-modifications done will affect the event loop, i.e. adding watchers will
-have no effect on the set of file descriptors being watched, or the time
-waited. Use an \f(CW\*(C`ev_async\*(C'\fR watcher to wake up \f(CW\*(C`ev_run\*(C'\fR when you want it
-to take note of any changes you made.
-.Sp
-In theory, threads executing \f(CW\*(C`ev_run\*(C'\fR will be async-cancel safe between
-invocations of \f(CW\*(C`release\*(C'\fR and \f(CW\*(C`acquire\*(C'\fR.
-.Sp
-See also the locking example in the \f(CW\*(C`THREADS\*(C'\fR section later in this
-document.
-.IP "ev_set_userdata (loop, void *data)" 4
-.IX Item "ev_set_userdata (loop, void *data)"
-.PD 0
-.IP "void *ev_userdata (loop)" 4
-.IX Item "void *ev_userdata (loop)"
-.PD
-Set and retrieve a single \f(CW\*(C`void *\*(C'\fR associated with a loop. When
-\&\f(CW\*(C`ev_set_userdata\*(C'\fR has never been called, then \f(CW\*(C`ev_userdata\*(C'\fR returns
-\&\f(CW0\fR.
-.Sp
-These two functions can be used to associate arbitrary data with a loop,
-and are intended solely for the \f(CW\*(C`invoke_pending_cb\*(C'\fR, \f(CW\*(C`release\*(C'\fR and
-\&\f(CW\*(C`acquire\*(C'\fR callbacks described above, but of course can be (ab\-)used for
-any other purpose as well.
-.IP "ev_verify (loop)" 4
-.IX Item "ev_verify (loop)"
-This function only does something when \f(CW\*(C`EV_VERIFY\*(C'\fR support has been
-compiled in, which is the default for non-minimal builds. It tries to go
-through all internal structures and checks them for validity. If anything
-is found to be inconsistent, it will print an error message to standard
-error and call \f(CW\*(C`abort ()\*(C'\fR.
-.Sp
-This can be used to catch bugs inside libev itself: under normal
-circumstances, this function will never abort as of course libev keeps its
-data structures consistent.
-.SH "ANATOMY OF A WATCHER"
-.IX Header "ANATOMY OF A WATCHER"
-In the following description, uppercase \f(CW\*(C`TYPE\*(C'\fR in names stands for the
-watcher type, e.g. \f(CW\*(C`ev_TYPE_start\*(C'\fR can mean \f(CW\*(C`ev_timer_start\*(C'\fR for timer
-watchers and \f(CW\*(C`ev_io_start\*(C'\fR for I/O watchers.
-.PP
-A watcher is an opaque structure that you allocate and register to record
-your interest in some event. To make a concrete example, imagine you want
-to wait for \s-1STDIN\s0 to become readable, you would create an \f(CW\*(C`ev_io\*(C'\fR watcher
-for that:
-.PP
-.Vb 5
-\& static void my_cb (struct ev_loop *loop, ev_io *w, int revents)
-\& {
-\& ev_io_stop (w);
-\& ev_break (loop, EVBREAK_ALL);
-\& }
-\&
-\& struct ev_loop *loop = ev_default_loop (0);
-\&
-\& ev_io stdin_watcher;
-\&
-\& ev_init (&stdin_watcher, my_cb);
-\& ev_io_set (&stdin_watcher, STDIN_FILENO, EV_READ);
-\& ev_io_start (loop, &stdin_watcher);
-\&
-\& ev_run (loop, 0);
-.Ve
-.PP
-As you can see, you are responsible for allocating the memory for your
-watcher structures (and it is \fIusually\fR a bad idea to do this on the
-stack).
-.PP
-Each watcher has an associated watcher structure (called \f(CW\*(C`struct ev_TYPE\*(C'\fR
-or simply \f(CW\*(C`ev_TYPE\*(C'\fR, as typedefs are provided for all watcher structs).
-.PP
-Each watcher structure must be initialised by a call to \f(CW\*(C`ev_init (watcher
-*, callback)\*(C'\fR, which expects a callback to be provided. This callback is
-invoked each time the event occurs (or, in the case of I/O watchers, each
-time the event loop detects that the file descriptor given is readable
-and/or writable).
-.PP
-Each watcher type further has its own \f(CW\*(C`ev_TYPE_set (watcher *, ...)\*(C'\fR
-macro to configure it, with arguments specific to the watcher type. There
-is also a macro to combine initialisation and setting in one call: \f(CW\*(C`ev_TYPE_init (watcher *, callback, ...)\*(C'\fR.
-.PP
-To make the watcher actually watch out for events, you have to start it
-with a watcher-specific start function (\f(CW\*(C`ev_TYPE_start (loop, watcher
-*)\*(C'\fR), and you can stop watching for events at any time by calling the
-corresponding stop function (\f(CW\*(C`ev_TYPE_stop (loop, watcher *)\*(C'\fR.
-.PP
-As long as your watcher is active (has been started but not stopped) you
-must not touch the values stored in it. Most specifically you must never
-reinitialise it or call its \f(CW\*(C`ev_TYPE_set\*(C'\fR macro.
-.PP
-Each and every callback receives the event loop pointer as first, the
-registered watcher structure as second, and a bitset of received events as
-third argument.
-.PP
-The received events usually include a single bit per event type received
-(you can receive multiple events at the same time). The possible bit masks
-are:
-.ie n .IP """EV_READ""" 4
-.el .IP "\f(CWEV_READ\fR" 4
-.IX Item "EV_READ"
-.PD 0
-.ie n .IP """EV_WRITE""" 4
-.el .IP "\f(CWEV_WRITE\fR" 4
-.IX Item "EV_WRITE"
-.PD
-The file descriptor in the \f(CW\*(C`ev_io\*(C'\fR watcher has become readable and/or
-writable.
-.ie n .IP """EV_TIMER""" 4
-.el .IP "\f(CWEV_TIMER\fR" 4
-.IX Item "EV_TIMER"
-The \f(CW\*(C`ev_timer\*(C'\fR watcher has timed out.
-.ie n .IP """EV_PERIODIC""" 4
-.el .IP "\f(CWEV_PERIODIC\fR" 4
-.IX Item "EV_PERIODIC"
-The \f(CW\*(C`ev_periodic\*(C'\fR watcher has timed out.
-.ie n .IP """EV_SIGNAL""" 4
-.el .IP "\f(CWEV_SIGNAL\fR" 4
-.IX Item "EV_SIGNAL"
-The signal specified in the \f(CW\*(C`ev_signal\*(C'\fR watcher has been received by a thread.
-.ie n .IP """EV_CHILD""" 4
-.el .IP "\f(CWEV_CHILD\fR" 4
-.IX Item "EV_CHILD"
-The pid specified in the \f(CW\*(C`ev_child\*(C'\fR watcher has received a status change.
-.ie n .IP """EV_STAT""" 4
-.el .IP "\f(CWEV_STAT\fR" 4
-.IX Item "EV_STAT"
-The path specified in the \f(CW\*(C`ev_stat\*(C'\fR watcher changed its attributes somehow.
-.ie n .IP """EV_IDLE""" 4
-.el .IP "\f(CWEV_IDLE\fR" 4
-.IX Item "EV_IDLE"
-The \f(CW\*(C`ev_idle\*(C'\fR watcher has determined that you have nothing better to do.
-.ie n .IP """EV_PREPARE""" 4
-.el .IP "\f(CWEV_PREPARE\fR" 4
-.IX Item "EV_PREPARE"
-.PD 0
-.ie n .IP """EV_CHECK""" 4
-.el .IP "\f(CWEV_CHECK\fR" 4
-.IX Item "EV_CHECK"
-.PD
-All \f(CW\*(C`ev_prepare\*(C'\fR watchers are invoked just \fIbefore\fR \f(CW\*(C`ev_run\*(C'\fR starts
-to gather new events, and all \f(CW\*(C`ev_check\*(C'\fR watchers are invoked just after
-\&\f(CW\*(C`ev_run\*(C'\fR has gathered them, but before it invokes any callbacks for any
-received events. Callbacks of both watcher types can start and stop as
-many watchers as they want, and all of them will be taken into account
-(for example, a \f(CW\*(C`ev_prepare\*(C'\fR watcher might start an idle watcher to keep
-\&\f(CW\*(C`ev_run\*(C'\fR from blocking).
-.ie n .IP """EV_EMBED""" 4
-.el .IP "\f(CWEV_EMBED\fR" 4
-.IX Item "EV_EMBED"
-The embedded event loop specified in the \f(CW\*(C`ev_embed\*(C'\fR watcher needs attention.
-.ie n .IP """EV_FORK""" 4
-.el .IP "\f(CWEV_FORK\fR" 4
-.IX Item "EV_FORK"
-The event loop has been resumed in the child process after fork (see
-\&\f(CW\*(C`ev_fork\*(C'\fR).
-.ie n .IP """EV_CLEANUP""" 4
-.el .IP "\f(CWEV_CLEANUP\fR" 4
-.IX Item "EV_CLEANUP"
-The event loop is about to be destroyed (see \f(CW\*(C`ev_cleanup\*(C'\fR).
-.ie n .IP """EV_ASYNC""" 4
-.el .IP "\f(CWEV_ASYNC\fR" 4
-.IX Item "EV_ASYNC"
-The given async watcher has been asynchronously notified (see \f(CW\*(C`ev_async\*(C'\fR).
-.ie n .IP """EV_CUSTOM""" 4
-.el .IP "\f(CWEV_CUSTOM\fR" 4
-.IX Item "EV_CUSTOM"
-Not ever sent (or otherwise used) by libev itself, but can be freely used
-by libev users to signal watchers (e.g. via \f(CW\*(C`ev_feed_event\*(C'\fR).
-.ie n .IP """EV_ERROR""" 4
-.el .IP "\f(CWEV_ERROR\fR" 4
-.IX Item "EV_ERROR"
-An unspecified error has occurred, the watcher has been stopped. This might
-happen because the watcher could not be properly started because libev
-ran out of memory, a file descriptor was found to be closed or any other
-problem. Libev considers these application bugs.
-.Sp
-You best act on it by reporting the problem and somehow coping with the
-watcher being stopped. Note that well-written programs should not receive
-an error ever, so when your watcher receives it, this usually indicates a
-bug in your program.
-.Sp
-Libev will usually signal a few \*(L"dummy\*(R" events together with an error, for
-example it might indicate that a fd is readable or writable, and if your
-callbacks is well-written it can just attempt the operation and cope with
-the error from \fIread()\fR or \fIwrite()\fR. This will not work in multi-threaded
-programs, though, as the fd could already be closed and reused for another
-thing, so beware.
-.SS "\s-1GENERIC\s0 \s-1WATCHER\s0 \s-1FUNCTIONS\s0"
-.IX Subsection "GENERIC WATCHER FUNCTIONS"
-.ie n .IP """ev_init"" (ev_TYPE *watcher, callback)" 4
-.el .IP "\f(CWev_init\fR (ev_TYPE *watcher, callback)" 4
-.IX Item "ev_init (ev_TYPE *watcher, callback)"
-This macro initialises the generic portion of a watcher. The contents
-of the watcher object can be arbitrary (so \f(CW\*(C`malloc\*(C'\fR will do). Only
-the generic parts of the watcher are initialised, you \fIneed\fR to call
-the type-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR macro afterwards to initialise the
-type-specific parts. For each type there is also a \f(CW\*(C`ev_TYPE_init\*(C'\fR macro
-which rolls both calls into one.
-.Sp
-You can reinitialise a watcher at any time as long as it has been stopped
-(or never started) and there are no pending events outstanding.
-.Sp
-The callback is always of type \f(CW\*(C`void (*)(struct ev_loop *loop, ev_TYPE *watcher,
-int revents)\*(C'\fR.
-.Sp
-Example: Initialise an \f(CW\*(C`ev_io\*(C'\fR watcher in two steps.
-.Sp
-.Vb 3
-\& ev_io w;
-\& ev_init (&w, my_cb);
-\& ev_io_set (&w, STDIN_FILENO, EV_READ);
-.Ve
-.ie n .IP """ev_TYPE_set"" (ev_TYPE *watcher, [args])" 4
-.el .IP "\f(CWev_TYPE_set\fR (ev_TYPE *watcher, [args])" 4
-.IX Item "ev_TYPE_set (ev_TYPE *watcher, [args])"
-This macro initialises the type-specific parts of a watcher. You need to
-call \f(CW\*(C`ev_init\*(C'\fR at least once before you call this macro, but you can
-call \f(CW\*(C`ev_TYPE_set\*(C'\fR any number of times. You must not, however, call this
-macro on a watcher that is active (it can be pending, however, which is a
-difference to the \f(CW\*(C`ev_init\*(C'\fR macro).
-.Sp
-Although some watcher types do not have type-specific arguments
-(e.g. \f(CW\*(C`ev_prepare\*(C'\fR) you still need to call its \f(CW\*(C`set\*(C'\fR macro.
-.Sp
-See \f(CW\*(C`ev_init\*(C'\fR, above, for an example.
-.ie n .IP """ev_TYPE_init"" (ev_TYPE *watcher, callback, [args])" 4
-.el .IP "\f(CWev_TYPE_init\fR (ev_TYPE *watcher, callback, [args])" 4
-.IX Item "ev_TYPE_init (ev_TYPE *watcher, callback, [args])"
-This convenience macro rolls both \f(CW\*(C`ev_init\*(C'\fR and \f(CW\*(C`ev_TYPE_set\*(C'\fR macro
-calls into a single call. This is the most convenient method to initialise
-a watcher. The same limitations apply, of course.
-.Sp
-Example: Initialise and set an \f(CW\*(C`ev_io\*(C'\fR watcher in one step.
-.Sp
-.Vb 1
-\& ev_io_init (&w, my_cb, STDIN_FILENO, EV_READ);
-.Ve
-.ie n .IP """ev_TYPE_start"" (loop, ev_TYPE *watcher)" 4
-.el .IP "\f(CWev_TYPE_start\fR (loop, ev_TYPE *watcher)" 4
-.IX Item "ev_TYPE_start (loop, ev_TYPE *watcher)"
-Starts (activates) the given watcher. Only active watchers will receive
-events. If the watcher is already active nothing will happen.
-.Sp
-Example: Start the \f(CW\*(C`ev_io\*(C'\fR watcher that is being abused as example in this
-whole section.
-.Sp
-.Vb 1
-\& ev_io_start (EV_DEFAULT_UC, &w);
-.Ve
-.ie n .IP """ev_TYPE_stop"" (loop, ev_TYPE *watcher)" 4
-.el .IP "\f(CWev_TYPE_stop\fR (loop, ev_TYPE *watcher)" 4
-.IX Item "ev_TYPE_stop (loop, ev_TYPE *watcher)"
-Stops the given watcher if active, and clears the pending status (whether
-the watcher was active or not).
-.Sp
-It is possible that stopped watchers are pending \- for example,
-non-repeating timers are being stopped when they become pending \- but
-calling \f(CW\*(C`ev_TYPE_stop\*(C'\fR ensures that the watcher is neither active nor
-pending. If you want to free or reuse the memory used by the watcher it is
-therefore a good idea to always call its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function.
-.IP "bool ev_is_active (ev_TYPE *watcher)" 4
-.IX Item "bool ev_is_active (ev_TYPE *watcher)"
-Returns a true value iff the watcher is active (i.e. it has been started
-and not yet been stopped). As long as a watcher is active you must not modify
-it.
-.IP "bool ev_is_pending (ev_TYPE *watcher)" 4
-.IX Item "bool ev_is_pending (ev_TYPE *watcher)"
-Returns a true value iff the watcher is pending, (i.e. it has outstanding
-events but its callback has not yet been invoked). As long as a watcher
-is pending (but not active) you must not call an init function on it (but
-\&\f(CW\*(C`ev_TYPE_set\*(C'\fR is safe), you must not change its priority, and you must
-make sure the watcher is available to libev (e.g. you cannot \f(CW\*(C`free ()\*(C'\fR
-it).
-.IP "callback ev_cb (ev_TYPE *watcher)" 4
-.IX Item "callback ev_cb (ev_TYPE *watcher)"
-Returns the callback currently set on the watcher.
-.IP "ev_cb_set (ev_TYPE *watcher, callback)" 4
-.IX Item "ev_cb_set (ev_TYPE *watcher, callback)"
-Change the callback. You can change the callback at virtually any time
-(modulo threads).
-.IP "ev_set_priority (ev_TYPE *watcher, int priority)" 4
-.IX Item "ev_set_priority (ev_TYPE *watcher, int priority)"
-.PD 0
-.IP "int ev_priority (ev_TYPE *watcher)" 4
-.IX Item "int ev_priority (ev_TYPE *watcher)"
-.PD
-Set and query the priority of the watcher. The priority is a small
-integer between \f(CW\*(C`EV_MAXPRI\*(C'\fR (default: \f(CW2\fR) and \f(CW\*(C`EV_MINPRI\*(C'\fR
-(default: \f(CW\*(C`\-2\*(C'\fR). Pending watchers with higher priority will be invoked
-before watchers with lower priority, but priority will not keep watchers
-from being executed (except for \f(CW\*(C`ev_idle\*(C'\fR watchers).
-.Sp
-If you need to suppress invocation when higher priority events are pending
-you need to look at \f(CW\*(C`ev_idle\*(C'\fR watchers, which provide this functionality.
-.Sp
-You \fImust not\fR change the priority of a watcher as long as it is active or
-pending.
-.Sp
-Setting a priority outside the range of \f(CW\*(C`EV_MINPRI\*(C'\fR to \f(CW\*(C`EV_MAXPRI\*(C'\fR is
-fine, as long as you do not mind that the priority value you query might
-or might not have been clamped to the valid range.
-.Sp
-The default priority used by watchers when no priority has been set is
-always \f(CW0\fR, which is supposed to not be too high and not be too low :).
-.Sp
-See \*(L"\s-1WATCHER\s0 \s-1PRIORITY\s0 \s-1MODELS\s0\*(R", below, for a more thorough treatment of
-priorities.
-.IP "ev_invoke (loop, ev_TYPE *watcher, int revents)" 4
-.IX Item "ev_invoke (loop, ev_TYPE *watcher, int revents)"
-Invoke the \f(CW\*(C`watcher\*(C'\fR with the given \f(CW\*(C`loop\*(C'\fR and \f(CW\*(C`revents\*(C'\fR. Neither
-\&\f(CW\*(C`loop\*(C'\fR nor \f(CW\*(C`revents\*(C'\fR need to be valid as long as the watcher callback
-can deal with that fact, as both are simply passed through to the
-callback.
-.IP "int ev_clear_pending (loop, ev_TYPE *watcher)" 4
-.IX Item "int ev_clear_pending (loop, ev_TYPE *watcher)"
-If the watcher is pending, this function clears its pending status and
-returns its \f(CW\*(C`revents\*(C'\fR bitset (as if its callback was invoked). If the
-watcher isn't pending it does nothing and returns \f(CW0\fR.
-.Sp
-Sometimes it can be useful to \*(L"poll\*(R" a watcher instead of waiting for its
-callback to be invoked, which can be accomplished with this function.
-.IP "ev_feed_event (loop, ev_TYPE *watcher, int revents)" 4
-.IX Item "ev_feed_event (loop, ev_TYPE *watcher, int revents)"
-Feeds the given event set into the event loop, as if the specified event
-had happened for the specified watcher (which must be a pointer to an
-initialised but not necessarily started event watcher). Obviously you must
-not free the watcher as long as it has pending events.
-.Sp
-Stopping the watcher, letting libev invoke it, or calling
-\&\f(CW\*(C`ev_clear_pending\*(C'\fR will clear the pending event, even if the watcher was
-not started in the first place.
-.Sp
-See also \f(CW\*(C`ev_feed_fd_event\*(C'\fR and \f(CW\*(C`ev_feed_signal_event\*(C'\fR for related
-functions that do not need a watcher.
-.PP
-See also the \*(L"\s-1ASSOCIATING\s0 \s-1CUSTOM\s0 \s-1DATA\s0 \s-1WITH\s0 A \s-1WATCHER\s0\*(R" and \*(L"\s-1BUILDING\s0 \s-1YOUR\s0
-\&\s-1OWN\s0 \s-1COMPOSITE\s0 \s-1WATCHERS\s0\*(R" idioms.
-.SS "\s-1WATCHER\s0 \s-1STATES\s0"
-.IX Subsection "WATCHER STATES"
-There are various watcher states mentioned throughout this manual \-
-active, pending and so on. In this section these states and the rules to
-transition between them will be described in more detail \- and while these
-rules might look complicated, they usually do \*(L"the right thing\*(R".
-.IP "initialiased" 4
-.IX Item "initialiased"
-Before a watcher can be registered with the event looop it has to be
-initialised. This can be done with a call to \f(CW\*(C`ev_TYPE_init\*(C'\fR, or calls to
-\&\f(CW\*(C`ev_init\*(C'\fR followed by the watcher-specific \f(CW\*(C`ev_TYPE_set\*(C'\fR function.
-.Sp
-In this state it is simply some block of memory that is suitable for
-use in an event loop. It can be moved around, freed, reused etc. at
-will \- as long as you either keep the memory contents intact, or call
-\&\f(CW\*(C`ev_TYPE_init\*(C'\fR again.
-.IP "started/running/active" 4
-.IX Item "started/running/active"
-Once a watcher has been started with a call to \f(CW\*(C`ev_TYPE_start\*(C'\fR it becomes
-property of the event loop, and is actively waiting for events. While in
-this state it cannot be accessed (except in a few documented ways), moved,
-freed or anything else \- the only legal thing is to keep a pointer to it,
-and call libev functions on it that are documented to work on active watchers.
-.IP "pending" 4
-.IX Item "pending"
-If a watcher is active and libev determines that an event it is interested
-in has occurred (such as a timer expiring), it will become pending. It will
-stay in this pending state until either it is stopped or its callback is
-about to be invoked, so it is not normally pending inside the watcher
-callback.
-.Sp
-The watcher might or might not be active while it is pending (for example,
-an expired non-repeating timer can be pending but no longer active). If it
-is stopped, it can be freely accessed (e.g. by calling \f(CW\*(C`ev_TYPE_set\*(C'\fR),
-but it is still property of the event loop at this time, so cannot be
-moved, freed or reused. And if it is active the rules described in the
-previous item still apply.
-.Sp
-It is also possible to feed an event on a watcher that is not active (e.g.
-via \f(CW\*(C`ev_feed_event\*(C'\fR), in which case it becomes pending without being
-active.
-.IP "stopped" 4
-.IX Item "stopped"
-A watcher can be stopped implicitly by libev (in which case it might still
-be pending), or explicitly by calling its \f(CW\*(C`ev_TYPE_stop\*(C'\fR function. The
-latter will clear any pending state the watcher might be in, regardless
-of whether it was active or not, so stopping a watcher explicitly before
-freeing it is often a good idea.
-.Sp
-While stopped (and not pending) the watcher is essentially in the
-initialised state, that is, it can be reused, moved, modified in any way
-you wish (but when you trash the memory block, you need to \f(CW\*(C`ev_TYPE_init\*(C'\fR
-it again).
-.SS "\s-1WATCHER\s0 \s-1PRIORITY\s0 \s-1MODELS\s0"
-.IX Subsection "WATCHER PRIORITY MODELS"
-Many event loops support \fIwatcher priorities\fR, which are usually small
-integers that influence the ordering of event callback invocation
-between watchers in some way, all else being equal.
-.PP
-In libev, Watcher priorities can be set using \f(CW\*(C`ev_set_priority\*(C'\fR. See its
-description for the more technical details such as the actual priority
-range.
-.PP
-There are two common ways how these these priorities are being interpreted
-by event loops:
-.PP
-In the more common lock-out model, higher priorities \*(L"lock out\*(R" invocation
-of lower priority watchers, which means as long as higher priority
-watchers receive events, lower priority watchers are not being invoked.
-.PP
-The less common only-for-ordering model uses priorities solely to order
-callback invocation within a single event loop iteration: Higher priority
-watchers are invoked before lower priority ones, but they all get invoked
-before polling for new events.
-.PP
-Libev uses the second (only-for-ordering) model for all its watchers
-except for idle watchers (which use the lock-out model).
-.PP
-The rationale behind this is that implementing the lock-out model for
-watchers is not well supported by most kernel interfaces, and most event
-libraries will just poll for the same events again and again as long as
-their callbacks have not been executed, which is very inefficient in the
-common case of one high-priority watcher locking out a mass of lower
-priority ones.
-.PP
-Static (ordering) priorities are most useful when you have two or more
-watchers handling the same resource: a typical usage example is having an
-\&\f(CW\*(C`ev_io\*(C'\fR watcher to receive data, and an associated \f(CW\*(C`ev_timer\*(C'\fR to handle
-timeouts. Under load, data might be received while the program handles
-other jobs, but since timers normally get invoked first, the timeout
-handler will be executed before checking for data. In that case, giving
-the timer a lower priority than the I/O watcher ensures that I/O will be
-handled first even under adverse conditions (which is usually, but not
-always, what you want).
-.PP
-Since idle watchers use the \*(L"lock-out\*(R" model, meaning that idle watchers
-will only be executed when no same or higher priority watchers have
-received events, they can be used to implement the \*(L"lock-out\*(R" model when
-required.
-.PP
-For example, to emulate how many other event libraries handle priorities,
-you can associate an \f(CW\*(C`ev_idle\*(C'\fR watcher to each such watcher, and in
-the normal watcher callback, you just start the idle watcher. The real
-processing is done in the idle watcher callback. This causes libev to
-continuously poll and process kernel event data for the watcher, but when
-the lock-out case is known to be rare (which in turn is rare :), this is
-workable.
-.PP
-Usually, however, the lock-out model implemented that way will perform
-miserably under the type of load it was designed to handle. In that case,
-it might be preferable to stop the real watcher before starting the
-idle watcher, so the kernel will not have to process the event in case
-the actual processing will be delayed for considerable time.
-.PP
-Here is an example of an I/O watcher that should run at a strictly lower
-priority than the default, and which should only process data when no
-other events are pending:
-.PP
-.Vb 2
-\& ev_idle idle; // actual processing watcher
-\& ev_io io; // actual event watcher
-\&
-\& static void
-\& io_cb (EV_P_ ev_io *w, int revents)
-\& {
-\& // stop the I/O watcher, we received the event, but
-\& // are not yet ready to handle it.
-\& ev_io_stop (EV_A_ w);
-\&
-\& // start the idle watcher to handle the actual event.
-\& // it will not be executed as long as other watchers
-\& // with the default priority are receiving events.
-\& ev_idle_start (EV_A_ &idle);
-\& }
-\&
-\& static void
-\& idle_cb (EV_P_ ev_idle *w, int revents)
-\& {
-\& // actual processing
-\& read (STDIN_FILENO, ...);
-\&
-\& // have to start the I/O watcher again, as
-\& // we have handled the event
-\& ev_io_start (EV_P_ &io);
-\& }
-\&
-\& // initialisation
-\& ev_idle_init (&idle, idle_cb);
-\& ev_io_init (&io, io_cb, STDIN_FILENO, EV_READ);
-\& ev_io_start (EV_DEFAULT_ &io);
-.Ve
-.PP
-In the \*(L"real\*(R" world, it might also be beneficial to start a timer, so that
-low-priority connections can not be locked out forever under load. This
-enables your program to keep a lower latency for important connections
-during short periods of high load, while not completely locking out less
-important ones.
-.SH "WATCHER TYPES"
-.IX Header "WATCHER TYPES"
-This section describes each watcher in detail, but will not repeat
-information given in the last section. Any initialisation/set macros,
-functions and members specific to the watcher type are explained.
-.PP
-Members are additionally marked with either \fI[read\-only]\fR, meaning that,
-while the watcher is active, you can look at the member and expect some
-sensible content, but you must not modify it (you can modify it while the
-watcher is stopped to your hearts content), or \fI[read\-write]\fR, which
-means you can expect it to have some sensible content while the watcher
-is active, but you can also modify it. Modifying it may not do something
-sensible or take immediate effect (or do anything at all), but libev will
-not crash or malfunction in any way.
-.ie n .SS """ev_io"" \- is this file descriptor readable or writable?"
-.el .SS "\f(CWev_io\fP \- is this file descriptor readable or writable?"
-.IX Subsection "ev_io - is this file descriptor readable or writable?"
-I/O watchers check whether a file descriptor is readable or writable
-in each iteration of the event loop, or, more precisely, when reading
-would not block the process and writing would at least be able to write
-some data. This behaviour is called level-triggering because you keep
-receiving events as long as the condition persists. Remember you can stop
-the watcher if you don't want to act on the event and neither want to
-receive future events.
-.PP
-In general you can register as many read and/or write event watchers per
-fd as you want (as long as you don't confuse yourself). Setting all file
-descriptors to non-blocking mode is also usually a good idea (but not
-required if you know what you are doing).
-.PP
-Another thing you have to watch out for is that it is quite easy to
-receive \*(L"spurious\*(R" readiness notifications, that is, your callback might
-be called with \f(CW\*(C`EV_READ\*(C'\fR but a subsequent \f(CW\*(C`read\*(C'\fR(2) will actually block
-because there is no data. It is very easy to get into this situation even
-with a relatively standard program structure. Thus it is best to always
-use non-blocking I/O: An extra \f(CW\*(C`read\*(C'\fR(2) returning \f(CW\*(C`EAGAIN\*(C'\fR is far
-preferable to a program hanging until some data arrives.
-.PP
-If you cannot run the fd in non-blocking mode (for example you should
-not play around with an Xlib connection), then you have to separately
-re-test whether a file descriptor is really ready with a known-to-be good
-interface such as poll (fortunately in the case of Xlib, it already does
-this on its own, so its quite safe to use). Some people additionally
-use \f(CW\*(C`SIGALRM\*(C'\fR and an interval timer, just to be sure you won't block
-indefinitely.
-.PP
-But really, best use non-blocking mode.
-.PP
-\fIThe special problem of disappearing file descriptors\fR
-.IX Subsection "The special problem of disappearing file descriptors"
-.PP
-Some backends (e.g. kqueue, epoll) need to be told about closing a file
-descriptor (either due to calling \f(CW\*(C`close\*(C'\fR explicitly or any other means,
-such as \f(CW\*(C`dup2\*(C'\fR). The reason is that you register interest in some file
-descriptor, but when it goes away, the operating system will silently drop
-this interest. If another file descriptor with the same number then is
-registered with libev, there is no efficient way to see that this is, in
-fact, a different file descriptor.
-.PP
-To avoid having to explicitly tell libev about such cases, libev follows
-the following policy: Each time \f(CW\*(C`ev_io_set\*(C'\fR is being called, libev
-will assume that this is potentially a new file descriptor, otherwise
-it is assumed that the file descriptor stays the same. That means that
-you \fIhave\fR to call \f(CW\*(C`ev_io_set\*(C'\fR (or \f(CW\*(C`ev_io_init\*(C'\fR) when you change the
-descriptor even if the file descriptor number itself did not change.
-.PP
-This is how one would do it normally anyway, the important point is that
-the libev application should not optimise around libev but should leave
-optimisations to libev.
-.PP
-\fIThe special problem of dup'ed file descriptors\fR
-.IX Subsection "The special problem of dup'ed file descriptors"
-.PP
-Some backends (e.g. epoll), cannot register events for file descriptors,
-but only events for the underlying file descriptions. That means when you
-have \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors or weirder constellations, and register
-events for them, only one file descriptor might actually receive events.
-.PP
-There is no workaround possible except not registering events
-for potentially \f(CW\*(C`dup ()\*(C'\fR'ed file descriptors, or to resort to
-\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.PP
-\fIThe special problem of files\fR
-.IX Subsection "The special problem of files"
-.PP
-Many people try to use \f(CW\*(C`select\*(C'\fR (or libev) on file descriptors
-representing files, and expect it to become ready when their program
-doesn't block on disk accesses (which can take a long time on their own).
-.PP
-However, this cannot ever work in the \*(L"expected\*(R" way \- you get a readiness
-notification as soon as the kernel knows whether and how much data is
-there, and in the case of open files, that's always the case, so you
-always get a readiness notification instantly, and your read (or possibly
-write) will still block on the disk I/O.
-.PP
-Another way to view it is that in the case of sockets, pipes, character
-devices and so on, there is another party (the sender) that delivers data
-on its own, but in the case of files, there is no such thing: the disk
-will not send data on its own, simply because it doesn't know what you
-wish to read \- you would first have to request some data.
-.PP
-Since files are typically not-so-well supported by advanced notification
-mechanism, libev tries hard to emulate \s-1POSIX\s0 behaviour with respect
-to files, even though you should not use it. The reason for this is
-convenience: sometimes you want to watch \s-1STDIN\s0 or \s-1STDOUT\s0, which is
-usually a tty, often a pipe, but also sometimes files or special devices
-(for example, \f(CW\*(C`epoll\*(C'\fR on Linux works with \fI/dev/random\fR but not with
-\&\fI/dev/urandom\fR), and even though the file might better be served with
-asynchronous I/O instead of with non-blocking I/O, it is still useful when
-it \*(L"just works\*(R" instead of freezing.
-.PP
-So avoid file descriptors pointing to files when you know it (e.g. use
-libeio), but use them when it is convenient, e.g. for \s-1STDIN/STDOUT\s0, or
-when you rarely read from a file instead of from a socket, and want to
-reuse the same code path.
-.PP
-\fIThe special problem of fork\fR
-.IX Subsection "The special problem of fork"
-.PP
-Some backends (epoll, kqueue) do not support \f(CW\*(C`fork ()\*(C'\fR at all or exhibit
-useless behaviour. Libev fully supports fork, but needs to be told about
-it in the child if you want to continue to use it in the child.
-.PP
-To support fork in your child processes, you have to call \f(CW\*(C`ev_loop_fork
-()\*(C'\fR after a fork in the child, enable \f(CW\*(C`EVFLAG_FORKCHECK\*(C'\fR, or resort to
-\&\f(CW\*(C`EVBACKEND_SELECT\*(C'\fR or \f(CW\*(C`EVBACKEND_POLL\*(C'\fR.
-.PP
-\fIThe special problem of \s-1SIGPIPE\s0\fR
-.IX Subsection "The special problem of SIGPIPE"
-.PP
-While not really specific to libev, it is easy to forget about \f(CW\*(C`SIGPIPE\*(C'\fR:
-when writing to a pipe whose other end has been closed, your program gets
-sent a \s-1SIGPIPE\s0, which, by default, aborts your program. For most programs
-this is sensible behaviour, for daemons, this is usually undesirable.
-.PP
-So when you encounter spurious, unexplained daemon exits, make sure you
-ignore \s-1SIGPIPE\s0 (and maybe make sure you log the exit status of your daemon
-somewhere, as that would have given you a big clue).
-.PP
-\fIThe special problem of \fIaccept()\fIing when you can't\fR
-.IX Subsection "The special problem of accept()ing when you can't"
-.PP
-Many implementations of the \s-1POSIX\s0 \f(CW\*(C`accept\*(C'\fR function (for example,
-found in post\-2004 Linux) have the peculiar behaviour of not removing a
-connection from the pending queue in all error cases.
-.PP
-For example, larger servers often run out of file descriptors (because
-of resource limits), causing \f(CW\*(C`accept\*(C'\fR to fail with \f(CW\*(C`ENFILE\*(C'\fR but not
-rejecting the connection, leading to libev signalling readiness on
-the next iteration again (the connection still exists after all), and
-typically causing the program to loop at 100% \s-1CPU\s0 usage.
-.PP
-Unfortunately, the set of errors that cause this issue differs between
-operating systems, there is usually little the app can do to remedy the
-situation, and no known thread-safe method of removing the connection to
-cope with overload is known (to me).
-.PP
-One of the easiest ways to handle this situation is to just ignore it
-\&\- when the program encounters an overload, it will just loop until the
-situation is over. While this is a form of busy waiting, no \s-1OS\s0 offers an
-event-based way to handle this situation, so it's the best one can do.
-.PP
-A better way to handle the situation is to log any errors other than
-\&\f(CW\*(C`EAGAIN\*(C'\fR and \f(CW\*(C`EWOULDBLOCK\*(C'\fR, making sure not to flood the log with such
-messages, and continue as usual, which at least gives the user an idea of
-what could be wrong (\*(L"raise the ulimit!\*(R"). For extra points one could stop
-the \f(CW\*(C`ev_io\*(C'\fR watcher on the listening fd \*(L"for a while\*(R", which reduces \s-1CPU\s0
-usage.
-.PP
-If your program is single-threaded, then you could also keep a dummy file
-descriptor for overload situations (e.g. by opening \fI/dev/null\fR), and
-when you run into \f(CW\*(C`ENFILE\*(C'\fR or \f(CW\*(C`EMFILE\*(C'\fR, close it, run \f(CW\*(C`accept\*(C'\fR,
-close that fd, and create a new dummy fd. This will gracefully refuse
-clients under typical overload conditions.
-.PP
-The last way to handle it is to simply log the error and \f(CW\*(C`exit\*(C'\fR, as
-is often done with \f(CW\*(C`malloc\*(C'\fR failures, but this results in an easy
-opportunity for a DoS attack.
-.PP
-\fIWatcher-Specific Functions\fR
-.IX Subsection "Watcher-Specific Functions"
-.IP "ev_io_init (ev_io *, callback, int fd, int events)" 4
-.IX Item "ev_io_init (ev_io *, callback, int fd, int events)"
-.PD 0
-.IP "ev_io_set (ev_io *, int fd, int events)" 4
-.IX Item "ev_io_set (ev_io *, int fd, int events)"
-.PD
-Configures an \f(CW\*(C`ev_io\*(C'\fR watcher. The \f(CW\*(C`fd\*(C'\fR is the file descriptor to
-receive events for and \f(CW\*(C`events\*(C'\fR is either \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or
-\&\f(CW\*(C`EV_READ | EV_WRITE\*(C'\fR, to express the desire to receive the given events.
-.IP "int fd [read\-only]" 4
-.IX Item "int fd [read-only]"
-The file descriptor being watched.
-.IP "int events [read\-only]" 4
-.IX Item "int events [read-only]"
-The events being watched.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Call \f(CW\*(C`stdin_readable_cb\*(C'\fR when \s-1STDIN_FILENO\s0 has become, well
-readable, but only once. Since it is likely line-buffered, you could
-attempt to read a whole line in the callback.
-.PP
-.Vb 6
-\& static void
-\& stdin_readable_cb (struct ev_loop *loop, ev_io *w, int revents)
-\& {
-\& ev_io_stop (loop, w);
-\& .. read from stdin here (or from w\->fd) and handle any I/O errors
-\& }
-\&
-\& ...
-\& struct ev_loop *loop = ev_default_init (0);
-\& ev_io stdin_readable;
-\& ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ);
-\& ev_io_start (loop, &stdin_readable);
-\& ev_run (loop, 0);
-.Ve
-.ie n .SS """ev_timer"" \- relative and optionally repeating timeouts"
-.el .SS "\f(CWev_timer\fP \- relative and optionally repeating timeouts"
-.IX Subsection "ev_timer - relative and optionally repeating timeouts"
-Timer watchers are simple relative timers that generate an event after a
-given time, and optionally repeating in regular intervals after that.
-.PP
-The timers are based on real time, that is, if you register an event that
-times out after an hour and you reset your system clock to January last
-year, it will still time out after (roughly) one hour. \*(L"Roughly\*(R" because
-detecting time jumps is hard, and some inaccuracies are unavoidable (the
-monotonic clock option helps a lot here).
-.PP
-The callback is guaranteed to be invoked only \fIafter\fR its timeout has
-passed (not \fIat\fR, so on systems with very low-resolution clocks this
-might introduce a small delay). If multiple timers become ready during the
-same loop iteration then the ones with earlier time-out values are invoked
-before ones of the same priority with later time-out values (but this is
-no longer true when a callback calls \f(CW\*(C`ev_run\*(C'\fR recursively).
-.PP
-\fIBe smart about timeouts\fR
-.IX Subsection "Be smart about timeouts"
-.PP
-Many real-world problems involve some kind of timeout, usually for error
-recovery. A typical example is an \s-1HTTP\s0 request \- if the other side hangs,
-you want to raise some error after a while.
-.PP
-What follows are some ways to handle this problem, from obvious and
-inefficient to smart and efficient.
-.PP
-In the following, a 60 second activity timeout is assumed \- a timeout that
-gets reset to 60 seconds each time there is activity (e.g. each time some
-data or other life sign was received).
-.IP "1. Use a timer and stop, reinitialise and start it on activity." 4
-.IX Item "1. Use a timer and stop, reinitialise and start it on activity."
-This is the most obvious, but not the most simple way: In the beginning,
-start the watcher:
-.Sp
-.Vb 2
-\& ev_timer_init (timer, callback, 60., 0.);
-\& ev_timer_start (loop, timer);
-.Ve
-.Sp
-Then, each time there is some activity, \f(CW\*(C`ev_timer_stop\*(C'\fR it, initialise it
-and start it again:
-.Sp
-.Vb 3
-\& ev_timer_stop (loop, timer);
-\& ev_timer_set (timer, 60., 0.);
-\& ev_timer_start (loop, timer);
-.Ve
-.Sp
-This is relatively simple to implement, but means that each time there is
-some activity, libev will first have to remove the timer from its internal
-data structure and then add it again. Libev tries to be fast, but it's
-still not a constant-time operation.
-.ie n .IP "2. Use a timer and re-start it with ""ev_timer_again"" inactivity." 4
-.el .IP "2. Use a timer and re-start it with \f(CWev_timer_again\fR inactivity." 4
-.IX Item "2. Use a timer and re-start it with ev_timer_again inactivity."
-This is the easiest way, and involves using \f(CW\*(C`ev_timer_again\*(C'\fR instead of
-\&\f(CW\*(C`ev_timer_start\*(C'\fR.
-.Sp
-To implement this, configure an \f(CW\*(C`ev_timer\*(C'\fR with a \f(CW\*(C`repeat\*(C'\fR value
-of \f(CW60\fR and then call \f(CW\*(C`ev_timer_again\*(C'\fR at start and each time you
-successfully read or write some data. If you go into an idle state where
-you do not expect data to travel on the socket, you can \f(CW\*(C`ev_timer_stop\*(C'\fR
-the timer, and \f(CW\*(C`ev_timer_again\*(C'\fR will automatically restart it if need be.
-.Sp
-That means you can ignore both the \f(CW\*(C`ev_timer_start\*(C'\fR function and the
-\&\f(CW\*(C`after\*(C'\fR argument to \f(CW\*(C`ev_timer_set\*(C'\fR, and only ever use the \f(CW\*(C`repeat\*(C'\fR
-member and \f(CW\*(C`ev_timer_again\*(C'\fR.
-.Sp
-At start:
-.Sp
-.Vb 3
-\& ev_init (timer, callback);
-\& timer\->repeat = 60.;
-\& ev_timer_again (loop, timer);
-.Ve
-.Sp
-Each time there is some activity:
-.Sp
-.Vb 1
-\& ev_timer_again (loop, timer);
-.Ve
-.Sp
-It is even possible to change the time-out on the fly, regardless of
-whether the watcher is active or not:
-.Sp
-.Vb 2
-\& timer\->repeat = 30.;
-\& ev_timer_again (loop, timer);
-.Ve
-.Sp
-This is slightly more efficient then stopping/starting the timer each time
-you want to modify its timeout value, as libev does not have to completely
-remove and re-insert the timer from/into its internal data structure.
-.Sp
-It is, however, even simpler than the \*(L"obvious\*(R" way to do it.
-.IP "3. Let the timer time out, but then re-arm it as required." 4
-.IX Item "3. Let the timer time out, but then re-arm it as required."
-This method is more tricky, but usually most efficient: Most timeouts are
-relatively long compared to the intervals between other activity \- in
-our example, within 60 seconds, there are usually many I/O events with
-associated activity resets.
-.Sp
-In this case, it would be more efficient to leave the \f(CW\*(C`ev_timer\*(C'\fR alone,
-but remember the time of last activity, and check for a real timeout only
-within the callback:
-.Sp
-.Vb 1
-\& ev_tstamp last_activity; // time of last activity
-\&
-\& static void
-\& callback (EV_P_ ev_timer *w, int revents)
-\& {
-\& ev_tstamp now = ev_now (EV_A);
-\& ev_tstamp timeout = last_activity + 60.;
-\&
-\& // if last_activity + 60. is older than now, we did time out
-\& if (timeout < now)
-\& {
-\& // timeout occurred, take action
-\& }
-\& else
-\& {
-\& // callback was invoked, but there was some activity, re\-arm
-\& // the watcher to fire in last_activity + 60, which is
-\& // guaranteed to be in the future, so "again" is positive:
-\& w\->repeat = timeout \- now;
-\& ev_timer_again (EV_A_ w);
-\& }
-\& }
-.Ve
-.Sp
-To summarise the callback: first calculate the real timeout (defined
-as \*(L"60 seconds after the last activity\*(R"), then check if that time has
-been reached, which means something \fIdid\fR, in fact, time out. Otherwise
-the callback was invoked too early (\f(CW\*(C`timeout\*(C'\fR is in the future), so
-re-schedule the timer to fire at that future time, to see if maybe we have
-a timeout then.
-.Sp
-Note how \f(CW\*(C`ev_timer_again\*(C'\fR is used, taking advantage of the
-\&\f(CW\*(C`ev_timer_again\*(C'\fR optimisation when the timer is already running.
-.Sp
-This scheme causes more callback invocations (about one every 60 seconds
-minus half the average time between activity), but virtually no calls to
-libev to change the timeout.
-.Sp
-To start the timer, simply initialise the watcher and set \f(CW\*(C`last_activity\*(C'\fR
-to the current time (meaning we just have some activity :), then call the
-callback, which will \*(L"do the right thing\*(R" and start the timer:
-.Sp
-.Vb 3
-\& ev_init (timer, callback);
-\& last_activity = ev_now (loop);
-\& callback (loop, timer, EV_TIMER);
-.Ve
-.Sp
-And when there is some activity, simply store the current time in
-\&\f(CW\*(C`last_activity\*(C'\fR, no libev calls at all:
-.Sp
-.Vb 1
-\& last_activity = ev_now (loop);
-.Ve
-.Sp
-This technique is slightly more complex, but in most cases where the
-time-out is unlikely to be triggered, much more efficient.
-.Sp
-Changing the timeout is trivial as well (if it isn't hard-coded in the
-callback :) \- just change the timeout and invoke the callback, which will
-fix things for you.
-.IP "4. Wee, just use a double-linked list for your timeouts." 4
-.IX Item "4. Wee, just use a double-linked list for your timeouts."
-If there is not one request, but many thousands (millions...), all
-employing some kind of timeout with the same timeout value, then one can
-do even better:
-.Sp
-When starting the timeout, calculate the timeout value and put the timeout
-at the \fIend\fR of the list.
-.Sp
-Then use an \f(CW\*(C`ev_timer\*(C'\fR to fire when the timeout at the \fIbeginning\fR of
-the list is expected to fire (for example, using the technique #3).
-.Sp
-When there is some activity, remove the timer from the list, recalculate
-the timeout, append it to the end of the list again, and make sure to
-update the \f(CW\*(C`ev_timer\*(C'\fR if it was taken from the beginning of the list.
-.Sp
-This way, one can manage an unlimited number of timeouts in O(1) time for
-starting, stopping and updating the timers, at the expense of a major
-complication, and having to use a constant timeout. The constant timeout
-ensures that the list stays sorted.
-.PP
-So which method the best?
-.PP
-Method #2 is a simple no-brain-required solution that is adequate in most
-situations. Method #3 requires a bit more thinking, but handles many cases
-better, and isn't very complicated either. In most case, choosing either
-one is fine, with #3 being better in typical situations.
-.PP
-Method #1 is almost always a bad idea, and buys you nothing. Method #4 is
-rather complicated, but extremely efficient, something that really pays
-off after the first million or so of active timers, i.e. it's usually
-overkill :)
-.PP
-\fIThe special problem of time updates\fR
-.IX Subsection "The special problem of time updates"
-.PP
-Establishing the current time is a costly operation (it usually takes at
-least two system calls): \s-1EV\s0 therefore updates its idea of the current
-time only before and after \f(CW\*(C`ev_run\*(C'\fR collects new events, which causes a
-growing difference between \f(CW\*(C`ev_now ()\*(C'\fR and \f(CW\*(C`ev_time ()\*(C'\fR when handling
-lots of events in one iteration.
-.PP
-The relative timeouts are calculated relative to the \f(CW\*(C`ev_now ()\*(C'\fR
-time. This is usually the right thing as this timestamp refers to the time
-of the event triggering whatever timeout you are modifying/starting. If
-you suspect event processing to be delayed and you \fIneed\fR to base the
-timeout on the current time, use something like this to adjust for this:
-.PP
-.Vb 1
-\& ev_timer_set (&timer, after + ev_now () \- ev_time (), 0.);
-.Ve
-.PP
-If the event loop is suspended for a long time, you can also force an
-update of the time returned by \f(CW\*(C`ev_now ()\*(C'\fR by calling \f(CW\*(C`ev_now_update
-()\*(C'\fR.
-.PP
-\fIThe special problems of suspended animation\fR
-.IX Subsection "The special problems of suspended animation"
-.PP
-When you leave the server world it is quite customary to hit machines that
-can suspend/hibernate \- what happens to the clocks during such a suspend?
-.PP
-Some quick tests made with a Linux 2.6.28 indicate that a suspend freezes
-all processes, while the clocks (\f(CW\*(C`times\*(C'\fR, \f(CW\*(C`CLOCK_MONOTONIC\*(C'\fR) continue
-to run until the system is suspended, but they will not advance while the
-system is suspended. That means, on resume, it will be as if the program
-was frozen for a few seconds, but the suspend time will not be counted
-towards \f(CW\*(C`ev_timer\*(C'\fR when a monotonic clock source is used. The real time
-clock advanced as expected, but if it is used as sole clocksource, then a
-long suspend would be detected as a time jump by libev, and timers would
-be adjusted accordingly.
-.PP
-I would not be surprised to see different behaviour in different between
-operating systems, \s-1OS\s0 versions or even different hardware.
-.PP
-The other form of suspend (job control, or sending a \s-1SIGSTOP\s0) will see a
-time jump in the monotonic clocks and the realtime clock. If the program
-is suspended for a very long time, and monotonic clock sources are in use,
-then you can expect \f(CW\*(C`ev_timer\*(C'\fRs to expire as the full suspension time
-will be counted towards the timers. When no monotonic clock source is in
-use, then libev will again assume a timejump and adjust accordingly.
-.PP
-It might be beneficial for this latter case to call \f(CW\*(C`ev_suspend\*(C'\fR
-and \f(CW\*(C`ev_resume\*(C'\fR in code that handles \f(CW\*(C`SIGTSTP\*(C'\fR, to at least get
-deterministic behaviour in this case (you can do nothing against
-\&\f(CW\*(C`SIGSTOP\*(C'\fR).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)" 4
-.IX Item "ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)"
-.PD 0
-.IP "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)" 4
-.IX Item "ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)"
-.PD
-Configure the timer to trigger after \f(CW\*(C`after\*(C'\fR seconds. If \f(CW\*(C`repeat\*(C'\fR
-is \f(CW0.\fR, then it will automatically be stopped once the timeout is
-reached. If it is positive, then the timer will automatically be
-configured to trigger again \f(CW\*(C`repeat\*(C'\fR seconds later, again, and again,
-until stopped manually.
-.Sp
-The timer itself will do a best-effort at avoiding drift, that is, if
-you configure a timer to trigger every 10 seconds, then it will normally
-trigger at exactly 10 second intervals. If, however, your program cannot
-keep up with the timer (because it takes longer than those 10 seconds to
-do stuff) the timer will not fire more than once per event loop iteration.
-.IP "ev_timer_again (loop, ev_timer *)" 4
-.IX Item "ev_timer_again (loop, ev_timer *)"
-This will act as if the timer timed out and restart it again if it is
-repeating. The exact semantics are:
-.Sp
-If the timer is pending, its pending status is cleared.
-.Sp
-If the timer is started but non-repeating, stop it (as if it timed out).
-.Sp
-If the timer is repeating, either start it if necessary (with the
-\&\f(CW\*(C`repeat\*(C'\fR value), or reset the running timer to the \f(CW\*(C`repeat\*(C'\fR value.
-.Sp
-This sounds a bit complicated, see \*(L"Be smart about timeouts\*(R", above, for a
-usage example.
-.IP "ev_tstamp ev_timer_remaining (loop, ev_timer *)" 4
-.IX Item "ev_tstamp ev_timer_remaining (loop, ev_timer *)"
-Returns the remaining time until a timer fires. If the timer is active,
-then this time is relative to the current event loop time, otherwise it's
-the timeout value currently configured.
-.Sp
-That is, after an \f(CW\*(C`ev_timer_set (w, 5, 7)\*(C'\fR, \f(CW\*(C`ev_timer_remaining\*(C'\fR returns
-\&\f(CW5\fR. When the timer is started and one second passes, \f(CW\*(C`ev_timer_remaining\*(C'\fR
-will return \f(CW4\fR. When the timer expires and is restarted, it will return
-roughly \f(CW7\fR (likely slightly less as callback invocation takes some time,
-too), and so on.
-.IP "ev_tstamp repeat [read\-write]" 4
-.IX Item "ev_tstamp repeat [read-write]"
-The current \f(CW\*(C`repeat\*(C'\fR value. Will be used each time the watcher times out
-or \f(CW\*(C`ev_timer_again\*(C'\fR is called, and determines the next timeout (if any),
-which is also when any modifications are taken into account.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Create a timer that fires after 60 seconds.
-.PP
-.Vb 5
-\& static void
-\& one_minute_cb (struct ev_loop *loop, ev_timer *w, int revents)
-\& {
-\& .. one minute over, w is actually stopped right here
-\& }
-\&
-\& ev_timer mytimer;
-\& ev_timer_init (&mytimer, one_minute_cb, 60., 0.);
-\& ev_timer_start (loop, &mytimer);
-.Ve
-.PP
-Example: Create a timeout timer that times out after 10 seconds of
-inactivity.
-.PP
-.Vb 5
-\& static void
-\& timeout_cb (struct ev_loop *loop, ev_timer *w, int revents)
-\& {
-\& .. ten seconds without any activity
-\& }
-\&
-\& ev_timer mytimer;
-\& ev_timer_init (&mytimer, timeout_cb, 0., 10.); /* note, only repeat used */
-\& ev_timer_again (&mytimer); /* start timer */
-\& ev_run (loop, 0);
-\&
-\& // and in some piece of code that gets executed on any "activity":
-\& // reset the timeout to start ticking again at 10 seconds
-\& ev_timer_again (&mytimer);
-.Ve
-.ie n .SS """ev_periodic"" \- to cron or not to cron?"
-.el .SS "\f(CWev_periodic\fP \- to cron or not to cron?"
-.IX Subsection "ev_periodic - to cron or not to cron?"
-Periodic watchers are also timers of a kind, but they are very versatile
-(and unfortunately a bit complex).
-.PP
-Unlike \f(CW\*(C`ev_timer\*(C'\fR, periodic watchers are not based on real time (or
-relative time, the physical time that passes) but on wall clock time
-(absolute time, the thing you can read on your calender or clock). The
-difference is that wall clock time can run faster or slower than real
-time, and time jumps are not uncommon (e.g. when you adjust your
-wrist-watch).
-.PP
-You can tell a periodic watcher to trigger after some specific point
-in time: for example, if you tell a periodic watcher to trigger \*(L"in 10
-seconds\*(R" (by specifying e.g. \f(CW\*(C`ev_now () + 10.\*(C'\fR, that is, an absolute time
-not a delay) and then reset your system clock to January of the previous
-year, then it will take a year or more to trigger the event (unlike an
-\&\f(CW\*(C`ev_timer\*(C'\fR, which would still trigger roughly 10 seconds after starting
-it, as it uses a relative timeout).
-.PP
-\&\f(CW\*(C`ev_periodic\*(C'\fR watchers can also be used to implement vastly more complex
-timers, such as triggering an event on each \*(L"midnight, local time\*(R", or
-other complicated rules. This cannot be done with \f(CW\*(C`ev_timer\*(C'\fR watchers, as
-those cannot react to time jumps.
-.PP
-As with timers, the callback is guaranteed to be invoked only when the
-point in time where it is supposed to trigger has passed. If multiple
-timers become ready during the same loop iteration then the ones with
-earlier time-out values are invoked before ones with later time-out values
-(but this is no longer true when a callback calls \f(CW\*(C`ev_run\*(C'\fR recursively).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" 4
-.IX Item "ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)"
-.PD 0
-.IP "ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)" 4
-.IX Item "ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)"
-.PD
-Lots of arguments, let's sort it out... There are basically three modes of
-operation, and we will explain them from simplest to most complex:
-.RS 4
-.IP "\(bu" 4
-absolute timer (offset = absolute time, interval = 0, reschedule_cb = 0)
-.Sp
-In this configuration the watcher triggers an event after the wall clock
-time \f(CW\*(C`offset\*(C'\fR has passed. It will not repeat and will not adjust when a
-time jump occurs, that is, if it is to be run at January 1st 2011 then it
-will be stopped and invoked when the system clock reaches or surpasses
-this point in time.
-.IP "\(bu" 4
-repeating interval timer (offset = offset within interval, interval > 0, reschedule_cb = 0)
-.Sp
-In this mode the watcher will always be scheduled to time out at the next
-\&\f(CW\*(C`offset + N * interval\*(C'\fR time (for some integer N, which can also be
-negative) and then repeat, regardless of any time jumps. The \f(CW\*(C`offset\*(C'\fR
-argument is merely an offset into the \f(CW\*(C`interval\*(C'\fR periods.
-.Sp
-This can be used to create timers that do not drift with respect to the
-system clock, for example, here is an \f(CW\*(C`ev_periodic\*(C'\fR that triggers each
-hour, on the hour (with respect to \s-1UTC\s0):
-.Sp
-.Vb 1
-\& ev_periodic_set (&periodic, 0., 3600., 0);
-.Ve
-.Sp
-This doesn't mean there will always be 3600 seconds in between triggers,
-but only that the callback will be called when the system time shows a
-full hour (\s-1UTC\s0), or more correctly, when the system time is evenly divisible
-by 3600.
-.Sp
-Another way to think about it (for the mathematically inclined) is that
-\&\f(CW\*(C`ev_periodic\*(C'\fR will try to run the callback in this mode at the next possible
-time where \f(CW\*(C`time = offset (mod interval)\*(C'\fR, regardless of any time jumps.
-.Sp
-For numerical stability it is preferable that the \f(CW\*(C`offset\*(C'\fR value is near
-\&\f(CW\*(C`ev_now ()\*(C'\fR (the current time), but there is no range requirement for
-this value, and in fact is often specified as zero.
-.Sp
-Note also that there is an upper limit to how often a timer can fire (\s-1CPU\s0
-speed for example), so if \f(CW\*(C`interval\*(C'\fR is very small then timing stability
-will of course deteriorate. Libev itself tries to be exact to be about one
-millisecond (if the \s-1OS\s0 supports it and the machine is fast enough).
-.IP "\(bu" 4
-manual reschedule mode (offset ignored, interval ignored, reschedule_cb = callback)
-.Sp
-In this mode the values for \f(CW\*(C`interval\*(C'\fR and \f(CW\*(C`offset\*(C'\fR are both being
-ignored. Instead, each time the periodic watcher gets scheduled, the
-reschedule callback will be called with the watcher as first, and the
-current time as second argument.
-.Sp
-\&\s-1NOTE:\s0 \fIThis callback \s-1MUST\s0 \s-1NOT\s0 stop or destroy any periodic watcher, ever,
-or make \s-1ANY\s0 other event loop modifications whatsoever, unless explicitly
-allowed by documentation here\fR.
-.Sp
-If you need to stop it, return \f(CW\*(C`now + 1e30\*(C'\fR (or so, fudge fudge) and stop
-it afterwards (e.g. by starting an \f(CW\*(C`ev_prepare\*(C'\fR watcher, which is the
-only event loop modification you are allowed to do).
-.Sp
-The callback prototype is \f(CW\*(C`ev_tstamp (*reschedule_cb)(ev_periodic
-*w, ev_tstamp now)\*(C'\fR, e.g.:
-.Sp
-.Vb 5
-\& static ev_tstamp
-\& my_rescheduler (ev_periodic *w, ev_tstamp now)
-\& {
-\& return now + 60.;
-\& }
-.Ve
-.Sp
-It must return the next time to trigger, based on the passed time value
-(that is, the lowest time value larger than to the second argument). It
-will usually be called just before the callback will be triggered, but
-might be called at other times, too.
-.Sp
-\&\s-1NOTE:\s0 \fIThis callback must always return a time that is higher than or
-equal to the passed \f(CI\*(C`now\*(C'\fI value\fR.
-.Sp
-This can be used to create very complex timers, such as a timer that
-triggers on \*(L"next midnight, local time\*(R". To do this, you would calculate the
-next midnight after \f(CW\*(C`now\*(C'\fR and return the timestamp value for this. How
-you do this is, again, up to you (but it is not trivial, which is the main
-reason I omitted it as an example).
-.RE
-.RS 4
-.RE
-.IP "ev_periodic_again (loop, ev_periodic *)" 4
-.IX Item "ev_periodic_again (loop, ev_periodic *)"
-Simply stops and restarts the periodic watcher again. This is only useful
-when you changed some parameters or the reschedule callback would return
-a different time than the last time it was called (e.g. in a crond like
-program when the crontabs have changed).
-.IP "ev_tstamp ev_periodic_at (ev_periodic *)" 4
-.IX Item "ev_tstamp ev_periodic_at (ev_periodic *)"
-When active, returns the absolute time that the watcher is supposed
-to trigger next. This is not the same as the \f(CW\*(C`offset\*(C'\fR argument to
-\&\f(CW\*(C`ev_periodic_set\*(C'\fR, but indeed works even in interval and manual
-rescheduling modes.
-.IP "ev_tstamp offset [read\-write]" 4
-.IX Item "ev_tstamp offset [read-write]"
-When repeating, this contains the offset value, otherwise this is the
-absolute point in time (the \f(CW\*(C`offset\*(C'\fR value passed to \f(CW\*(C`ev_periodic_set\*(C'\fR,
-although libev might modify this value for better numerical stability).
-.Sp
-Can be modified any time, but changes only take effect when the periodic
-timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called.
-.IP "ev_tstamp interval [read\-write]" 4
-.IX Item "ev_tstamp interval [read-write]"
-The current interval value. Can be modified any time, but changes only
-take effect when the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being
-called.
-.IP "ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read\-write]" 4
-.IX Item "ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read-write]"
-The current reschedule callback, or \f(CW0\fR, if this functionality is
-switched off. Can be changed any time, but changes only take effect when
-the periodic timer fires or \f(CW\*(C`ev_periodic_again\*(C'\fR is being called.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Call a callback every hour, or, more precisely, whenever the
-system time is divisible by 3600. The callback invocation times have
-potentially a lot of jitter, but good long-term stability.
-.PP
-.Vb 5
-\& static void
-\& clock_cb (struct ev_loop *loop, ev_periodic *w, int revents)
-\& {
-\& ... its now a full hour (UTC, or TAI or whatever your clock follows)
-\& }
-\&
-\& ev_periodic hourly_tick;
-\& ev_periodic_init (&hourly_tick, clock_cb, 0., 3600., 0);
-\& ev_periodic_start (loop, &hourly_tick);
-.Ve
-.PP
-Example: The same as above, but use a reschedule callback to do it:
-.PP
-.Vb 1
-\& #include <math.h>
-\&
-\& static ev_tstamp
-\& my_scheduler_cb (ev_periodic *w, ev_tstamp now)
-\& {
-\& return now + (3600. \- fmod (now, 3600.));
-\& }
-\&
-\& ev_periodic_init (&hourly_tick, clock_cb, 0., 0., my_scheduler_cb);
-.Ve
-.PP
-Example: Call a callback every hour, starting now:
-.PP
-.Vb 4
-\& ev_periodic hourly_tick;
-\& ev_periodic_init (&hourly_tick, clock_cb,
-\& fmod (ev_now (loop), 3600.), 3600., 0);
-\& ev_periodic_start (loop, &hourly_tick);
-.Ve
-.ie n .SS """ev_signal"" \- signal me when a signal gets signalled!"
-.el .SS "\f(CWev_signal\fP \- signal me when a signal gets signalled!"
-.IX Subsection "ev_signal - signal me when a signal gets signalled!"
-Signal watchers will trigger an event when the process receives a specific
-signal one or more times. Even though signals are very asynchronous, libev
-will try its best to deliver signals synchronously, i.e. as part of the
-normal event processing, like any other event.
-.PP
-If you want signals to be delivered truly asynchronously, just use
-\&\f(CW\*(C`sigaction\*(C'\fR as you would do without libev and forget about sharing
-the signal. You can even use \f(CW\*(C`ev_async\*(C'\fR from a signal handler to
-synchronously wake up an event loop.
-.PP
-You can configure as many watchers as you like for the same signal, but
-only within the same loop, i.e. you can watch for \f(CW\*(C`SIGINT\*(C'\fR in your
-default loop and for \f(CW\*(C`SIGIO\*(C'\fR in another loop, but you cannot watch for
-\&\f(CW\*(C`SIGINT\*(C'\fR in both the default loop and another loop at the same time. At
-the moment, \f(CW\*(C`SIGCHLD\*(C'\fR is permanently tied to the default loop.
-.PP
-When the first watcher gets started will libev actually register something
-with the kernel (thus it coexists with your own signal handlers as long as
-you don't register any with libev for the same signal).
-.PP
-If possible and supported, libev will install its handlers with
-\&\f(CW\*(C`SA_RESTART\*(C'\fR (or equivalent) behaviour enabled, so system calls should
-not be unduly interrupted. If you have a problem with system calls getting
-interrupted by signals you can block all signals in an \f(CW\*(C`ev_check\*(C'\fR watcher
-and unblock them in an \f(CW\*(C`ev_prepare\*(C'\fR watcher.
-.PP
-\fIThe special problem of inheritance over fork/execve/pthread_create\fR
-.IX Subsection "The special problem of inheritance over fork/execve/pthread_create"
-.PP
-Both the signal mask (\f(CW\*(C`sigprocmask\*(C'\fR) and the signal disposition
-(\f(CW\*(C`sigaction\*(C'\fR) are unspecified after starting a signal watcher (and after
-stopping it again), that is, libev might or might not block the signal,
-and might or might not set or restore the installed signal handler (but
-see \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR).
-.PP
-While this does not matter for the signal disposition (libev never
-sets signals to \f(CW\*(C`SIG_IGN\*(C'\fR, so handlers will be reset to \f(CW\*(C`SIG_DFL\*(C'\fR on
-\&\f(CW\*(C`execve\*(C'\fR), this matters for the signal mask: many programs do not expect
-certain signals to be blocked.
-.PP
-This means that before calling \f(CW\*(C`exec\*(C'\fR (from the child) you should reset
-the signal mask to whatever \*(L"default\*(R" you expect (all clear is a good
-choice usually).
-.PP
-The simplest way to ensure that the signal mask is reset in the child is
-to install a fork handler with \f(CW\*(C`pthread_atfork\*(C'\fR that resets it. That will
-catch fork calls done by libraries (such as the libc) as well.
-.PP
-In current versions of libev, the signal will not be blocked indefinitely
-unless you use the \f(CW\*(C`signalfd\*(C'\fR \s-1API\s0 (\f(CW\*(C`EV_SIGNALFD\*(C'\fR). While this reduces
-the window of opportunity for problems, it will not go away, as libev
-\&\fIhas\fR to modify the signal mask, at least temporarily.
-.PP
-So I can't stress this enough: \fIIf you do not reset your signal mask when
-you expect it to be empty, you have a race condition in your code\fR. This
-is not a libev-specific thing, this is true for most event libraries.
-.PP
-\fIThe special problem of threads signal handling\fR
-.IX Subsection "The special problem of threads signal handling"
-.PP
-\&\s-1POSIX\s0 threads has problematic signal handling semantics, specifically,
-a lot of functionality (sigfd, sigwait etc.) only really works if all
-threads in a process block signals, which is hard to achieve.
-.PP
-When you want to use sigwait (or mix libev signal handling with your own
-for the same signals), you can tackle this problem by globally blocking
-all signals before creating any threads (or creating them with a fully set
-sigprocmask) and also specifying the \f(CW\*(C`EVFLAG_NOSIGMASK\*(C'\fR when creating
-loops. Then designate one thread as \*(L"signal receiver thread\*(R" which handles
-these signals. You can pass on any signals that libev might be interested
-in by calling \f(CW\*(C`ev_feed_signal\*(C'\fR.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_signal_init (ev_signal *, callback, int signum)" 4
-.IX Item "ev_signal_init (ev_signal *, callback, int signum)"
-.PD 0
-.IP "ev_signal_set (ev_signal *, int signum)" 4
-.IX Item "ev_signal_set (ev_signal *, int signum)"
-.PD
-Configures the watcher to trigger on the given signal number (usually one
-of the \f(CW\*(C`SIGxxx\*(C'\fR constants).
-.IP "int signum [read\-only]" 4
-.IX Item "int signum [read-only]"
-The signal the watcher watches out for.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Try to exit cleanly on \s-1SIGINT\s0.
-.PP
-.Vb 5
-\& static void
-\& sigint_cb (struct ev_loop *loop, ev_signal *w, int revents)
-\& {
-\& ev_break (loop, EVBREAK_ALL);
-\& }
-\&
-\& ev_signal signal_watcher;
-\& ev_signal_init (&signal_watcher, sigint_cb, SIGINT);
-\& ev_signal_start (loop, &signal_watcher);
-.Ve
-.ie n .SS """ev_child"" \- watch out for process status changes"
-.el .SS "\f(CWev_child\fP \- watch out for process status changes"
-.IX Subsection "ev_child - watch out for process status changes"
-Child watchers trigger when your process receives a \s-1SIGCHLD\s0 in response to
-some child status changes (most typically when a child of yours dies or
-exits). It is permissible to install a child watcher \fIafter\fR the child
-has been forked (which implies it might have already exited), as long
-as the event loop isn't entered (or is continued from a watcher), i.e.,
-forking and then immediately registering a watcher for the child is fine,
-but forking and registering a watcher a few event loop iterations later or
-in the next callback invocation is not.
-.PP
-Only the default event loop is capable of handling signals, and therefore
-you can only register child watchers in the default event loop.
-.PP
-Due to some design glitches inside libev, child watchers will always be
-handled at maximum priority (their priority is set to \f(CW\*(C`EV_MAXPRI\*(C'\fR by
-libev)
-.PP
-\fIProcess Interaction\fR
-.IX Subsection "Process Interaction"
-.PP
-Libev grabs \f(CW\*(C`SIGCHLD\*(C'\fR as soon as the default event loop is
-initialised. This is necessary to guarantee proper behaviour even if the
-first child watcher is started after the child exits. The occurrence
-of \f(CW\*(C`SIGCHLD\*(C'\fR is recorded asynchronously, but child reaping is done
-synchronously as part of the event loop processing. Libev always reaps all
-children, even ones not watched.
-.PP
-\fIOverriding the Built-In Processing\fR
-.IX Subsection "Overriding the Built-In Processing"
-.PP
-Libev offers no special support for overriding the built-in child
-processing, but if your application collides with libev's default child
-handler, you can override it easily by installing your own handler for
-\&\f(CW\*(C`SIGCHLD\*(C'\fR after initialising the default loop, and making sure the
-default loop never gets destroyed. You are encouraged, however, to use an
-event-based approach to child reaping and thus use libev's support for
-that, so other libev users can use \f(CW\*(C`ev_child\*(C'\fR watchers freely.
-.PP
-\fIStopping the Child Watcher\fR
-.IX Subsection "Stopping the Child Watcher"
-.PP
-Currently, the child watcher never gets stopped, even when the
-child terminates, so normally one needs to stop the watcher in the
-callback. Future versions of libev might stop the watcher automatically
-when a child exit is detected (calling \f(CW\*(C`ev_child_stop\*(C'\fR twice is not a
-problem).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_child_init (ev_child *, callback, int pid, int trace)" 4
-.IX Item "ev_child_init (ev_child *, callback, int pid, int trace)"
-.PD 0
-.IP "ev_child_set (ev_child *, int pid, int trace)" 4
-.IX Item "ev_child_set (ev_child *, int pid, int trace)"
-.PD
-Configures the watcher to wait for status changes of process \f(CW\*(C`pid\*(C'\fR (or
-\&\fIany\fR process if \f(CW\*(C`pid\*(C'\fR is specified as \f(CW0\fR). The callback can look
-at the \f(CW\*(C`rstatus\*(C'\fR member of the \f(CW\*(C`ev_child\*(C'\fR watcher structure to see
-the status word (use the macros from \f(CW\*(C`sys/wait.h\*(C'\fR and see your systems
-\&\f(CW\*(C`waitpid\*(C'\fR documentation). The \f(CW\*(C`rpid\*(C'\fR member contains the pid of the
-process causing the status change. \f(CW\*(C`trace\*(C'\fR must be either \f(CW0\fR (only
-activate the watcher when the process terminates) or \f(CW1\fR (additionally
-activate the watcher when the process is stopped or continued).
-.IP "int pid [read\-only]" 4
-.IX Item "int pid [read-only]"
-The process id this watcher watches out for, or \f(CW0\fR, meaning any process id.
-.IP "int rpid [read\-write]" 4
-.IX Item "int rpid [read-write]"
-The process id that detected a status change.
-.IP "int rstatus [read\-write]" 4
-.IX Item "int rstatus [read-write]"
-The process exit/trace status caused by \f(CW\*(C`rpid\*(C'\fR (see your systems
-\&\f(CW\*(C`waitpid\*(C'\fR and \f(CW\*(C`sys/wait.h\*(C'\fR documentation for details).
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: \f(CW\*(C`fork()\*(C'\fR a new process and install a child handler to wait for
-its completion.
-.PP
-.Vb 1
-\& ev_child cw;
-\&
-\& static void
-\& child_cb (EV_P_ ev_child *w, int revents)
-\& {
-\& ev_child_stop (EV_A_ w);
-\& printf ("process %d exited with status %x\en", w\->rpid, w\->rstatus);
-\& }
-\&
-\& pid_t pid = fork ();
-\&
-\& if (pid < 0)
-\& // error
-\& else if (pid == 0)
-\& {
-\& // the forked child executes here
-\& exit (1);
-\& }
-\& else
-\& {
-\& ev_child_init (&cw, child_cb, pid, 0);
-\& ev_child_start (EV_DEFAULT_ &cw);
-\& }
-.Ve
-.ie n .SS """ev_stat"" \- did the file attributes just change?"
-.el .SS "\f(CWev_stat\fP \- did the file attributes just change?"
-.IX Subsection "ev_stat - did the file attributes just change?"
-This watches a file system path for attribute changes. That is, it calls
-\&\f(CW\*(C`stat\*(C'\fR on that path in regular intervals (or when the \s-1OS\s0 says it changed)
-and sees if it changed compared to the last time, invoking the callback if
-it did.
-.PP
-The path does not need to exist: changing from \*(L"path exists\*(R" to \*(L"path does
-not exist\*(R" is a status change like any other. The condition \*(L"path does not
-exist\*(R" (or more correctly \*(L"path cannot be stat'ed\*(R") is signified by the
-\&\f(CW\*(C`st_nlink\*(C'\fR field being zero (which is otherwise always forced to be at
-least one) and all the other fields of the stat buffer having unspecified
-contents.
-.PP
-The path \fImust not\fR end in a slash or contain special components such as
-\&\f(CW\*(C`.\*(C'\fR or \f(CW\*(C`..\*(C'\fR. The path \fIshould\fR be absolute: If it is relative and
-your working directory changes, then the behaviour is undefined.
-.PP
-Since there is no portable change notification interface available, the
-portable implementation simply calls \f(CWstat(2)\fR regularly on the path
-to see if it changed somehow. You can specify a recommended polling
-interval for this case. If you specify a polling interval of \f(CW0\fR (highly
-recommended!) then a \fIsuitable, unspecified default\fR value will be used
-(which you can expect to be around five seconds, although this might
-change dynamically). Libev will also impose a minimum interval which is
-currently around \f(CW0.1\fR, but that's usually overkill.
-.PP
-This watcher type is not meant for massive numbers of stat watchers,
-as even with OS-supported change notifications, this can be
-resource-intensive.
-.PP
-At the time of this writing, the only OS-specific interface implemented
-is the Linux inotify interface (implementing kqueue support is left as an
-exercise for the reader. Note, however, that the author sees no way of
-implementing \f(CW\*(C`ev_stat\*(C'\fR semantics with kqueue, except as a hint).
-.PP
-\fI\s-1ABI\s0 Issues (Largefile Support)\fR
-.IX Subsection "ABI Issues (Largefile Support)"
-.PP
-Libev by default (unless the user overrides this) uses the default
-compilation environment, which means that on systems with large file
-support disabled by default, you get the 32 bit version of the stat
-structure. When using the library from programs that change the \s-1ABI\s0 to
-use 64 bit file offsets the programs will fail. In that case you have to
-compile libev with the same flags to get binary compatibility. This is
-obviously the case with any flags that change the \s-1ABI\s0, but the problem is
-most noticeably displayed with ev_stat and large file support.
-.PP
-The solution for this is to lobby your distribution maker to make large
-file interfaces available by default (as e.g. FreeBSD does) and not
-optional. Libev cannot simply switch on large file support because it has
-to exchange stat structures with application programs compiled using the
-default compilation environment.
-.PP
-\fIInotify and Kqueue\fR
-.IX Subsection "Inotify and Kqueue"
-.PP
-When \f(CW\*(C`inotify (7)\*(C'\fR support has been compiled into libev and present at
-runtime, it will be used to speed up change detection where possible. The
-inotify descriptor will be created lazily when the first \f(CW\*(C`ev_stat\*(C'\fR
-watcher is being started.
-.PP
-Inotify presence does not change the semantics of \f(CW\*(C`ev_stat\*(C'\fR watchers
-except that changes might be detected earlier, and in some cases, to avoid
-making regular \f(CW\*(C`stat\*(C'\fR calls. Even in the presence of inotify support
-there are many cases where libev has to resort to regular \f(CW\*(C`stat\*(C'\fR polling,
-but as long as kernel 2.6.25 or newer is used (2.6.24 and older have too
-many bugs), the path exists (i.e. stat succeeds), and the path resides on
-a local filesystem (libev currently assumes only ext2/3, jfs, reiserfs and
-xfs are fully working) libev usually gets away without polling.
-.PP
-There is no support for kqueue, as apparently it cannot be used to
-implement this functionality, due to the requirement of having a file
-descriptor open on the object at all times, and detecting renames, unlinks
-etc. is difficult.
-.PP
-\fI\f(CI\*(C`stat ()\*(C'\fI is a synchronous operation\fR
-.IX Subsection "stat () is a synchronous operation"
-.PP
-Libev doesn't normally do any kind of I/O itself, and so is not blocking
-the process. The exception are \f(CW\*(C`ev_stat\*(C'\fR watchers \- those call \f(CW\*(C`stat
-()\*(C'\fR, which is a synchronous operation.
-.PP
-For local paths, this usually doesn't matter: unless the system is very
-busy or the intervals between stat's are large, a stat call will be fast,
-as the path data is usually in memory already (except when starting the
-watcher).
-.PP
-For networked file systems, calling \f(CW\*(C`stat ()\*(C'\fR can block an indefinite
-time due to network issues, and even under good conditions, a stat call
-often takes multiple milliseconds.
-.PP
-Therefore, it is best to avoid using \f(CW\*(C`ev_stat\*(C'\fR watchers on networked
-paths, although this is fully supported by libev.
-.PP
-\fIThe special problem of stat time resolution\fR
-.IX Subsection "The special problem of stat time resolution"
-.PP
-The \f(CW\*(C`stat ()\*(C'\fR system call only supports full-second resolution portably,
-and even on systems where the resolution is higher, most file systems
-still only support whole seconds.
-.PP
-That means that, if the time is the only thing that changes, you can
-easily miss updates: on the first update, \f(CW\*(C`ev_stat\*(C'\fR detects a change and
-calls your callback, which does something. When there is another update
-within the same second, \f(CW\*(C`ev_stat\*(C'\fR will be unable to detect unless the
-stat data does change in other ways (e.g. file size).
-.PP
-The solution to this is to delay acting on a change for slightly more
-than a second (or till slightly after the next full second boundary), using
-a roughly one-second-delay \f(CW\*(C`ev_timer\*(C'\fR (e.g. \f(CW\*(C`ev_timer_set (w, 0., 1.02);
-ev_timer_again (loop, w)\*(C'\fR).
-.PP
-The \f(CW.02\fR offset is added to work around small timing inconsistencies
-of some operating systems (where the second counter of the current time
-might be be delayed. One such system is the Linux kernel, where a call to
-\&\f(CW\*(C`gettimeofday\*(C'\fR might return a timestamp with a full second later than
-a subsequent \f(CW\*(C`time\*(C'\fR call \- if the equivalent of \f(CW\*(C`time ()\*(C'\fR is used to
-update file times then there will be a small window where the kernel uses
-the previous second to update file times but libev might already execute
-the timer callback).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)" 4
-.IX Item "ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)"
-.PD 0
-.IP "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)" 4
-.IX Item "ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)"
-.PD
-Configures the watcher to wait for status changes of the given
-\&\f(CW\*(C`path\*(C'\fR. The \f(CW\*(C`interval\*(C'\fR is a hint on how quickly a change is expected to
-be detected and should normally be specified as \f(CW0\fR to let libev choose
-a suitable value. The memory pointed to by \f(CW\*(C`path\*(C'\fR must point to the same
-path for as long as the watcher is active.
-.Sp
-The callback will receive an \f(CW\*(C`EV_STAT\*(C'\fR event when a change was detected,
-relative to the attributes at the time the watcher was started (or the
-last change was detected).
-.IP "ev_stat_stat (loop, ev_stat *)" 4
-.IX Item "ev_stat_stat (loop, ev_stat *)"
-Updates the stat buffer immediately with new values. If you change the
-watched path in your callback, you could call this function to avoid
-detecting this change (while introducing a race condition if you are not
-the only one changing the path). Can also be useful simply to find out the
-new values.
-.IP "ev_statdata attr [read\-only]" 4
-.IX Item "ev_statdata attr [read-only]"
-The most-recently detected attributes of the file. Although the type is
-\&\f(CW\*(C`ev_statdata\*(C'\fR, this is usually the (or one of the) \f(CW\*(C`struct stat\*(C'\fR types
-suitable for your system, but you can only rely on the POSIX-standardised
-members to be present. If the \f(CW\*(C`st_nlink\*(C'\fR member is \f(CW0\fR, then there was
-some error while \f(CW\*(C`stat\*(C'\fRing the file.
-.IP "ev_statdata prev [read\-only]" 4
-.IX Item "ev_statdata prev [read-only]"
-The previous attributes of the file. The callback gets invoked whenever
-\&\f(CW\*(C`prev\*(C'\fR != \f(CW\*(C`attr\*(C'\fR, or, more precisely, one or more of these members
-differ: \f(CW\*(C`st_dev\*(C'\fR, \f(CW\*(C`st_ino\*(C'\fR, \f(CW\*(C`st_mode\*(C'\fR, \f(CW\*(C`st_nlink\*(C'\fR, \f(CW\*(C`st_uid\*(C'\fR,
-\&\f(CW\*(C`st_gid\*(C'\fR, \f(CW\*(C`st_rdev\*(C'\fR, \f(CW\*(C`st_size\*(C'\fR, \f(CW\*(C`st_atime\*(C'\fR, \f(CW\*(C`st_mtime\*(C'\fR, \f(CW\*(C`st_ctime\*(C'\fR.
-.IP "ev_tstamp interval [read\-only]" 4
-.IX Item "ev_tstamp interval [read-only]"
-The specified interval.
-.IP "const char *path [read\-only]" 4
-.IX Item "const char *path [read-only]"
-The file system path that is being watched.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Watch \f(CW\*(C`/etc/passwd\*(C'\fR for attribute changes.
-.PP
-.Vb 10
-\& static void
-\& passwd_cb (struct ev_loop *loop, ev_stat *w, int revents)
-\& {
-\& /* /etc/passwd changed in some way */
-\& if (w\->attr.st_nlink)
-\& {
-\& printf ("passwd current size %ld\en", (long)w\->attr.st_size);
-\& printf ("passwd current atime %ld\en", (long)w\->attr.st_mtime);
-\& printf ("passwd current mtime %ld\en", (long)w\->attr.st_mtime);
-\& }
-\& else
-\& /* you shalt not abuse printf for puts */
-\& puts ("wow, /etc/passwd is not there, expect problems. "
-\& "if this is windows, they already arrived\en");
-\& }
-\&
-\& ...
-\& ev_stat passwd;
-\&
-\& ev_stat_init (&passwd, passwd_cb, "/etc/passwd", 0.);
-\& ev_stat_start (loop, &passwd);
-.Ve
-.PP
-Example: Like above, but additionally use a one-second delay so we do not
-miss updates (however, frequent updates will delay processing, too, so
-one might do the work both on \f(CW\*(C`ev_stat\*(C'\fR callback invocation \fIand\fR on
-\&\f(CW\*(C`ev_timer\*(C'\fR callback invocation).
-.PP
-.Vb 2
-\& static ev_stat passwd;
-\& static ev_timer timer;
-\&
-\& static void
-\& timer_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& ev_timer_stop (EV_A_ w);
-\&
-\& /* now it\*(Aqs one second after the most recent passwd change */
-\& }
-\&
-\& static void
-\& stat_cb (EV_P_ ev_stat *w, int revents)
-\& {
-\& /* reset the one\-second timer */
-\& ev_timer_again (EV_A_ &timer);
-\& }
-\&
-\& ...
-\& ev_stat_init (&passwd, stat_cb, "/etc/passwd", 0.);
-\& ev_stat_start (loop, &passwd);
-\& ev_timer_init (&timer, timer_cb, 0., 1.02);
-.Ve
-.ie n .SS """ev_idle"" \- when you've got nothing better to do..."
-.el .SS "\f(CWev_idle\fP \- when you've got nothing better to do..."
-.IX Subsection "ev_idle - when you've got nothing better to do..."
-Idle watchers trigger events when no other events of the same or higher
-priority are pending (prepare, check and other idle watchers do not count
-as receiving \*(L"events\*(R").
-.PP
-That is, as long as your process is busy handling sockets or timeouts
-(or even signals, imagine) of the same or higher priority it will not be
-triggered. But when your process is idle (or only lower-priority watchers
-are pending), the idle watchers are being called once per event loop
-iteration \- until stopped, that is, or your process receives more events
-and becomes busy again with higher priority stuff.
-.PP
-The most noteworthy effect is that as long as any idle watchers are
-active, the process will not block when waiting for new events.
-.PP
-Apart from keeping your process non-blocking (which is a useful
-effect on its own sometimes), idle watchers are a good place to do
-\&\*(L"pseudo-background processing\*(R", or delay processing stuff to after the
-event loop has handled all outstanding events.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_idle_init (ev_idle *, callback)" 4
-.IX Item "ev_idle_init (ev_idle *, callback)"
-Initialises and configures the idle watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_idle_set\*(C'\fR macro, but using it is utterly pointless,
-believe me.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Dynamically allocate an \f(CW\*(C`ev_idle\*(C'\fR watcher, start it, and in the
-callback, free it. Also, use no error checking, as usual.
-.PP
-.Vb 7
-\& static void
-\& idle_cb (struct ev_loop *loop, ev_idle *w, int revents)
-\& {
-\& free (w);
-\& // now do something you wanted to do when the program has
-\& // no longer anything immediate to do.
-\& }
-\&
-\& ev_idle *idle_watcher = malloc (sizeof (ev_idle));
-\& ev_idle_init (idle_watcher, idle_cb);
-\& ev_idle_start (loop, idle_watcher);
-.Ve
-.ie n .SS """ev_prepare"" and ""ev_check"" \- customise your event loop!"
-.el .SS "\f(CWev_prepare\fP and \f(CWev_check\fP \- customise your event loop!"
-.IX Subsection "ev_prepare and ev_check - customise your event loop!"
-Prepare and check watchers are usually (but not always) used in pairs:
-prepare watchers get invoked before the process blocks and check watchers
-afterwards.
-.PP
-You \fImust not\fR call \f(CW\*(C`ev_run\*(C'\fR or similar functions that enter
-the current event loop from either \f(CW\*(C`ev_prepare\*(C'\fR or \f(CW\*(C`ev_check\*(C'\fR
-watchers. Other loops than the current one are fine, however. The
-rationale behind this is that you do not need to check for recursion in
-those watchers, i.e. the sequence will always be \f(CW\*(C`ev_prepare\*(C'\fR, blocking,
-\&\f(CW\*(C`ev_check\*(C'\fR so if you have one watcher of each kind they will always be
-called in pairs bracketing the blocking call.
-.PP
-Their main purpose is to integrate other event mechanisms into libev and
-their use is somewhat advanced. They could be used, for example, to track
-variable changes, implement your own watchers, integrate net-snmp or a
-coroutine library and lots more. They are also occasionally useful if
-you cache some data and want to flush it before blocking (for example,
-in X programs you might want to do an \f(CW\*(C`XFlush ()\*(C'\fR in an \f(CW\*(C`ev_prepare\*(C'\fR
-watcher).
-.PP
-This is done by examining in each prepare call which file descriptors
-need to be watched by the other library, registering \f(CW\*(C`ev_io\*(C'\fR watchers
-for them and starting an \f(CW\*(C`ev_timer\*(C'\fR watcher for any timeouts (many
-libraries provide exactly this functionality). Then, in the check watcher,
-you check for any events that occurred (by checking the pending status
-of all watchers and stopping them) and call back into the library. The
-I/O and timer callbacks will never actually be called (but must be valid
-nevertheless, because you never know, you know?).
-.PP
-As another example, the Perl Coro module uses these hooks to integrate
-coroutines into libev programs, by yielding to other active coroutines
-during each prepare and only letting the process block if no coroutines
-are ready to run (it's actually more complicated: it only runs coroutines
-with priority higher than or equal to the event loop and one coroutine
-of lower priority, but only once, using idle watchers to keep the event
-loop from blocking if lower-priority coroutines are active, thus mapping
-low-priority coroutines to idle/background tasks).
-.PP
-It is recommended to give \f(CW\*(C`ev_check\*(C'\fR watchers highest (\f(CW\*(C`EV_MAXPRI\*(C'\fR)
-priority, to ensure that they are being run before any other watchers
-after the poll (this doesn't matter for \f(CW\*(C`ev_prepare\*(C'\fR watchers).
-.PP
-Also, \f(CW\*(C`ev_check\*(C'\fR watchers (and \f(CW\*(C`ev_prepare\*(C'\fR watchers, too) should not
-activate (\*(L"feed\*(R") events into libev. While libev fully supports this, they
-might get executed before other \f(CW\*(C`ev_check\*(C'\fR watchers did their job. As
-\&\f(CW\*(C`ev_check\*(C'\fR watchers are often used to embed other (non-libev) event
-loops those other event loops might be in an unusable state until their
-\&\f(CW\*(C`ev_check\*(C'\fR watcher ran (always remind yourself to coexist peacefully with
-others).
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_prepare_init (ev_prepare *, callback)" 4
-.IX Item "ev_prepare_init (ev_prepare *, callback)"
-.PD 0
-.IP "ev_check_init (ev_check *, callback)" 4
-.IX Item "ev_check_init (ev_check *, callback)"
-.PD
-Initialises and configures the prepare or check watcher \- they have no
-parameters of any kind. There are \f(CW\*(C`ev_prepare_set\*(C'\fR and \f(CW\*(C`ev_check_set\*(C'\fR
-macros, but using them is utterly, utterly, utterly and completely
-pointless.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-There are a number of principal ways to embed other event loops or modules
-into libev. Here are some ideas on how to include libadns into libev
-(there is a Perl module named \f(CW\*(C`EV::ADNS\*(C'\fR that does this, which you could
-use as a working example. Another Perl module named \f(CW\*(C`EV::Glib\*(C'\fR embeds a
-Glib main context into libev, and finally, \f(CW\*(C`Glib::EV\*(C'\fR embeds \s-1EV\s0 into the
-Glib event loop).
-.PP
-Method 1: Add \s-1IO\s0 watchers and a timeout watcher in a prepare handler,
-and in a check watcher, destroy them and call into libadns. What follows
-is pseudo-code only of course. This requires you to either use a low
-priority for the check watcher or use \f(CW\*(C`ev_clear_pending\*(C'\fR explicitly, as
-the callbacks for the IO/timeout watchers might not have been called yet.
-.PP
-.Vb 2
-\& static ev_io iow [nfd];
-\& static ev_timer tw;
-\&
-\& static void
-\& io_cb (struct ev_loop *loop, ev_io *w, int revents)
-\& {
-\& }
-\&
-\& // create io watchers for each fd and a timer before blocking
-\& static void
-\& adns_prepare_cb (struct ev_loop *loop, ev_prepare *w, int revents)
-\& {
-\& int timeout = 3600000;
-\& struct pollfd fds [nfd];
-\& // actual code will need to loop here and realloc etc.
-\& adns_beforepoll (ads, fds, &nfd, &timeout, timeval_from (ev_time ()));
-\&
-\& /* the callback is illegal, but won\*(Aqt be called as we stop during check */
-\& ev_timer_init (&tw, 0, timeout * 1e\-3, 0.);
-\& ev_timer_start (loop, &tw);
-\&
-\& // create one ev_io per pollfd
-\& for (int i = 0; i < nfd; ++i)
-\& {
-\& ev_io_init (iow + i, io_cb, fds [i].fd,
-\& ((fds [i].events & POLLIN ? EV_READ : 0)
-\& | (fds [i].events & POLLOUT ? EV_WRITE : 0)));
-\&
-\& fds [i].revents = 0;
-\& ev_io_start (loop, iow + i);
-\& }
-\& }
-\&
-\& // stop all watchers after blocking
-\& static void
-\& adns_check_cb (struct ev_loop *loop, ev_check *w, int revents)
-\& {
-\& ev_timer_stop (loop, &tw);
-\&
-\& for (int i = 0; i < nfd; ++i)
-\& {
-\& // set the relevant poll flags
-\& // could also call adns_processreadable etc. here
-\& struct pollfd *fd = fds + i;
-\& int revents = ev_clear_pending (iow + i);
-\& if (revents & EV_READ ) fd\->revents |= fd\->events & POLLIN;
-\& if (revents & EV_WRITE) fd\->revents |= fd\->events & POLLOUT;
-\&
-\& // now stop the watcher
-\& ev_io_stop (loop, iow + i);
-\& }
-\&
-\& adns_afterpoll (adns, fds, nfd, timeval_from (ev_now (loop));
-\& }
-.Ve
-.PP
-Method 2: This would be just like method 1, but you run \f(CW\*(C`adns_afterpoll\*(C'\fR
-in the prepare watcher and would dispose of the check watcher.
-.PP
-Method 3: If the module to be embedded supports explicit event
-notification (libadns does), you can also make use of the actual watcher
-callbacks, and only destroy/create the watchers in the prepare watcher.
-.PP
-.Vb 5
-\& static void
-\& timer_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& adns_state ads = (adns_state)w\->data;
-\& update_now (EV_A);
-\&
-\& adns_processtimeouts (ads, &tv_now);
-\& }
-\&
-\& static void
-\& io_cb (EV_P_ ev_io *w, int revents)
-\& {
-\& adns_state ads = (adns_state)w\->data;
-\& update_now (EV_A);
-\&
-\& if (revents & EV_READ ) adns_processreadable (ads, w\->fd, &tv_now);
-\& if (revents & EV_WRITE) adns_processwriteable (ads, w\->fd, &tv_now);
-\& }
-\&
-\& // do not ever call adns_afterpoll
-.Ve
-.PP
-Method 4: Do not use a prepare or check watcher because the module you
-want to embed is not flexible enough to support it. Instead, you can
-override their poll function. The drawback with this solution is that the
-main loop is now no longer controllable by \s-1EV\s0. The \f(CW\*(C`Glib::EV\*(C'\fR module uses
-this approach, effectively embedding \s-1EV\s0 as a client into the horrible
-libglib event loop.
-.PP
-.Vb 4
-\& static gint
-\& event_poll_func (GPollFD *fds, guint nfds, gint timeout)
-\& {
-\& int got_events = 0;
-\&
-\& for (n = 0; n < nfds; ++n)
-\& // create/start io watcher that sets the relevant bits in fds[n] and increment got_events
-\&
-\& if (timeout >= 0)
-\& // create/start timer
-\&
-\& // poll
-\& ev_run (EV_A_ 0);
-\&
-\& // stop timer again
-\& if (timeout >= 0)
-\& ev_timer_stop (EV_A_ &to);
-\&
-\& // stop io watchers again \- their callbacks should have set
-\& for (n = 0; n < nfds; ++n)
-\& ev_io_stop (EV_A_ iow [n]);
-\&
-\& return got_events;
-\& }
-.Ve
-.ie n .SS """ev_embed"" \- when one backend isn't enough..."
-.el .SS "\f(CWev_embed\fP \- when one backend isn't enough..."
-.IX Subsection "ev_embed - when one backend isn't enough..."
-This is a rather advanced watcher type that lets you embed one event loop
-into another (currently only \f(CW\*(C`ev_io\*(C'\fR events are supported in the embedded
-loop, other types of watchers might be handled in a delayed or incorrect
-fashion and must not be used).
-.PP
-There are primarily two reasons you would want that: work around bugs and
-prioritise I/O.
-.PP
-As an example for a bug workaround, the kqueue backend might only support
-sockets on some platform, so it is unusable as generic backend, but you
-still want to make use of it because you have many sockets and it scales
-so nicely. In this case, you would create a kqueue-based loop and embed
-it into your default loop (which might use e.g. poll). Overall operation
-will be a bit slower because first libev has to call \f(CW\*(C`poll\*(C'\fR and then
-\&\f(CW\*(C`kevent\*(C'\fR, but at least you can use both mechanisms for what they are
-best: \f(CW\*(C`kqueue\*(C'\fR for scalable sockets and \f(CW\*(C`poll\*(C'\fR if you want it to work :)
-.PP
-As for prioritising I/O: under rare circumstances you have the case where
-some fds have to be watched and handled very quickly (with low latency),
-and even priorities and idle watchers might have too much overhead. In
-this case you would put all the high priority stuff in one loop and all
-the rest in a second one, and embed the second one in the first.
-.PP
-As long as the watcher is active, the callback will be invoked every
-time there might be events pending in the embedded loop. The callback
-must then call \f(CW\*(C`ev_embed_sweep (mainloop, watcher)\*(C'\fR to make a single
-sweep and invoke their callbacks (the callback doesn't need to invoke the
-\&\f(CW\*(C`ev_embed_sweep\*(C'\fR function directly, it could also start an idle watcher
-to give the embedded loop strictly lower priority for example).
-.PP
-You can also set the callback to \f(CW0\fR, in which case the embed watcher
-will automatically execute the embedded loop sweep whenever necessary.
-.PP
-Fork detection will be handled transparently while the \f(CW\*(C`ev_embed\*(C'\fR watcher
-is active, i.e., the embedded loop will automatically be forked when the
-embedding loop forks. In other cases, the user is responsible for calling
-\&\f(CW\*(C`ev_loop_fork\*(C'\fR on the embedded loop.
-.PP
-Unfortunately, not all backends are embeddable: only the ones returned by
-\&\f(CW\*(C`ev_embeddable_backends\*(C'\fR are, which, unfortunately, does not include any
-portable one.
-.PP
-So when you want to use this feature you will always have to be prepared
-that you cannot get an embeddable loop. The recommended way to get around
-this is to have a separate variables for your embeddable loop, try to
-create it, and if that fails, use the normal loop for everything.
-.PP
-\fI\f(CI\*(C`ev_embed\*(C'\fI and fork\fR
-.IX Subsection "ev_embed and fork"
-.PP
-While the \f(CW\*(C`ev_embed\*(C'\fR watcher is running, forks in the embedding loop will
-automatically be applied to the embedded loop as well, so no special
-fork handling is required in that case. When the watcher is not running,
-however, it is still the task of the libev user to call \f(CW\*(C`ev_loop_fork ()\*(C'\fR
-as applicable.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)" 4
-.IX Item "ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)"
-.PD 0
-.IP "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)" 4
-.IX Item "ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)"
-.PD
-Configures the watcher to embed the given loop, which must be
-embeddable. If the callback is \f(CW0\fR, then \f(CW\*(C`ev_embed_sweep\*(C'\fR will be
-invoked automatically, otherwise it is the responsibility of the callback
-to invoke it (it will continue to be called until the sweep has been done,
-if you do not want that, you need to temporarily stop the embed watcher).
-.IP "ev_embed_sweep (loop, ev_embed *)" 4
-.IX Item "ev_embed_sweep (loop, ev_embed *)"
-Make a single, non-blocking sweep over the embedded loop. This works
-similarly to \f(CW\*(C`ev_run (embedded_loop, EVRUN_NOWAIT)\*(C'\fR, but in the most
-appropriate way for embedded loops.
-.IP "struct ev_loop *other [read\-only]" 4
-.IX Item "struct ev_loop *other [read-only]"
-The embedded event loop.
-.PP
-\fIExamples\fR
-.IX Subsection "Examples"
-.PP
-Example: Try to get an embeddable event loop and embed it into the default
-event loop. If that is not possible, use the default loop. The default
-loop is stored in \f(CW\*(C`loop_hi\*(C'\fR, while the embeddable loop is stored in
-\&\f(CW\*(C`loop_lo\*(C'\fR (which is \f(CW\*(C`loop_hi\*(C'\fR in the case no embeddable loop can be
-used).
-.PP
-.Vb 3
-\& struct ev_loop *loop_hi = ev_default_init (0);
-\& struct ev_loop *loop_lo = 0;
-\& ev_embed embed;
-\&
-\& // see if there is a chance of getting one that works
-\& // (remember that a flags value of 0 means autodetection)
-\& loop_lo = ev_embeddable_backends () & ev_recommended_backends ()
-\& ? ev_loop_new (ev_embeddable_backends () & ev_recommended_backends ())
-\& : 0;
-\&
-\& // if we got one, then embed it, otherwise default to loop_hi
-\& if (loop_lo)
-\& {
-\& ev_embed_init (&embed, 0, loop_lo);
-\& ev_embed_start (loop_hi, &embed);
-\& }
-\& else
-\& loop_lo = loop_hi;
-.Ve
-.PP
-Example: Check if kqueue is available but not recommended and create
-a kqueue backend for use with sockets (which usually work with any
-kqueue implementation). Store the kqueue/socket\-only event loop in
-\&\f(CW\*(C`loop_socket\*(C'\fR. (One might optionally use \f(CW\*(C`EVFLAG_NOENV\*(C'\fR, too).
-.PP
-.Vb 3
-\& struct ev_loop *loop = ev_default_init (0);
-\& struct ev_loop *loop_socket = 0;
-\& ev_embed embed;
-\&
-\& if (ev_supported_backends () & ~ev_recommended_backends () & EVBACKEND_KQUEUE)
-\& if ((loop_socket = ev_loop_new (EVBACKEND_KQUEUE))
-\& {
-\& ev_embed_init (&embed, 0, loop_socket);
-\& ev_embed_start (loop, &embed);
-\& }
-\&
-\& if (!loop_socket)
-\& loop_socket = loop;
-\&
-\& // now use loop_socket for all sockets, and loop for everything else
-.Ve
-.ie n .SS """ev_fork"" \- the audacity to resume the event loop after a fork"
-.el .SS "\f(CWev_fork\fP \- the audacity to resume the event loop after a fork"
-.IX Subsection "ev_fork - the audacity to resume the event loop after a fork"
-Fork watchers are called when a \f(CW\*(C`fork ()\*(C'\fR was detected (usually because
-whoever is a good citizen cared to tell libev about it by calling
-\&\f(CW\*(C`ev_default_fork\*(C'\fR or \f(CW\*(C`ev_loop_fork\*(C'\fR). The invocation is done before the
-event loop blocks next and before \f(CW\*(C`ev_check\*(C'\fR watchers are being called,
-and only in the child after the fork. If whoever good citizen calling
-\&\f(CW\*(C`ev_default_fork\*(C'\fR cheats and calls it in the wrong process, the fork
-handlers will be invoked, too, of course.
-.PP
-\fIThe special problem of life after fork \- how is it possible?\fR
-.IX Subsection "The special problem of life after fork - how is it possible?"
-.PP
-Most uses of \f(CW\*(C`fork()\*(C'\fR consist of forking, then some simple calls to set
-up/change the process environment, followed by a call to \f(CW\*(C`exec()\*(C'\fR. This
-sequence should be handled by libev without any problems.
-.PP
-This changes when the application actually wants to do event handling
-in the child, or both parent in child, in effect \*(L"continuing\*(R" after the
-fork.
-.PP
-The default mode of operation (for libev, with application help to detect
-forks) is to duplicate all the state in the child, as would be expected
-when \fIeither\fR the parent \fIor\fR the child process continues.
-.PP
-When both processes want to continue using libev, then this is usually the
-wrong result. In that case, usually one process (typically the parent) is
-supposed to continue with all watchers in place as before, while the other
-process typically wants to start fresh, i.e. without any active watchers.
-.PP
-The cleanest and most efficient way to achieve that with libev is to
-simply create a new event loop, which of course will be \*(L"empty\*(R", and
-use that for new watchers. This has the advantage of not touching more
-memory than necessary, and thus avoiding the copy-on-write, and the
-disadvantage of having to use multiple event loops (which do not support
-signal watchers).
-.PP
-When this is not possible, or you want to use the default loop for
-other reasons, then in the process that wants to start \*(L"fresh\*(R", call
-\&\f(CW\*(C`ev_loop_destroy (EV_DEFAULT)\*(C'\fR followed by \f(CW\*(C`ev_default_loop (...)\*(C'\fR.
-Destroying the default loop will \*(L"orphan\*(R" (not stop) all registered
-watchers, so you have to be careful not to execute code that modifies
-those watchers. Note also that in that case, you have to re-register any
-signal watchers.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_fork_init (ev_fork *, callback)" 4
-.IX Item "ev_fork_init (ev_fork *, callback)"
-Initialises and configures the fork watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_fork_set\*(C'\fR macro, but using it is utterly pointless,
-really.
-.ie n .SS """ev_cleanup"" \- even the best things end"
-.el .SS "\f(CWev_cleanup\fP \- even the best things end"
-.IX Subsection "ev_cleanup - even the best things end"
-Cleanup watchers are called just before the event loop is being destroyed
-by a call to \f(CW\*(C`ev_loop_destroy\*(C'\fR.
-.PP
-While there is no guarantee that the event loop gets destroyed, cleanup
-watchers provide a convenient method to install cleanup hooks for your
-program, worker threads and so on \- you just to make sure to destroy the
-loop when you want them to be invoked.
-.PP
-Cleanup watchers are invoked in the same way as any other watcher. Unlike
-all other watchers, they do not keep a reference to the event loop (which
-makes a lot of sense if you think about it). Like all other watchers, you
-can call libev functions in the callback, except \f(CW\*(C`ev_cleanup_start\*(C'\fR.
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_cleanup_init (ev_cleanup *, callback)" 4
-.IX Item "ev_cleanup_init (ev_cleanup *, callback)"
-Initialises and configures the cleanup watcher \- it has no parameters of
-any kind. There is a \f(CW\*(C`ev_cleanup_set\*(C'\fR macro, but using it is utterly
-pointless, I assure you.
-.PP
-Example: Register an atexit handler to destroy the default loop, so any
-cleanup functions are called.
-.PP
-.Vb 5
-\& static void
-\& program_exits (void)
-\& {
-\& ev_loop_destroy (EV_DEFAULT_UC);
-\& }
-\&
-\& ...
-\& atexit (program_exits);
-.Ve
-.ie n .SS """ev_async"" \- how to wake up an event loop"
-.el .SS "\f(CWev_async\fP \- how to wake up an event loop"
-.IX Subsection "ev_async - how to wake up an event loop"
-In general, you cannot use an \f(CW\*(C`ev_loop\*(C'\fR from multiple threads or other
-asynchronous sources such as signal handlers (as opposed to multiple event
-loops \- those are of course safe to use in different threads).
-.PP
-Sometimes, however, you need to wake up an event loop you do not control,
-for example because it belongs to another thread. This is what \f(CW\*(C`ev_async\*(C'\fR
-watchers do: as long as the \f(CW\*(C`ev_async\*(C'\fR watcher is active, you can signal
-it by calling \f(CW\*(C`ev_async_send\*(C'\fR, which is thread\- and signal safe.
-.PP
-This functionality is very similar to \f(CW\*(C`ev_signal\*(C'\fR watchers, as signals,
-too, are asynchronous in nature, and signals, too, will be compressed
-(i.e. the number of callback invocations may be less than the number of
-\&\f(CW\*(C`ev_async_sent\*(C'\fR calls). In fact, you could use signal watchers as a kind
-of \*(L"global async watchers\*(R" by using a watcher on an otherwise unused
-signal, and \f(CW\*(C`ev_feed_signal\*(C'\fR to signal this watcher from another thread,
-even without knowing which loop owns the signal.
-.PP
-Unlike \f(CW\*(C`ev_signal\*(C'\fR watchers, \f(CW\*(C`ev_async\*(C'\fR works with any event loop, not
-just the default loop.
-.PP
-\fIQueueing\fR
-.IX Subsection "Queueing"
-.PP
-\&\f(CW\*(C`ev_async\*(C'\fR does not support queueing of data in any way. The reason
-is that the author does not know of a simple (or any) algorithm for a
-multiple-writer-single-reader queue that works in all cases and doesn't
-need elaborate support such as pthreads or unportable memory access
-semantics.
-.PP
-That means that if you want to queue data, you have to provide your own
-queue. But at least I can tell you how to implement locking around your
-queue:
-.IP "queueing from a signal handler context" 4
-.IX Item "queueing from a signal handler context"
-To implement race-free queueing, you simply add to the queue in the signal
-handler but you block the signal handler in the watcher callback. Here is
-an example that does that for some fictitious \s-1SIGUSR1\s0 handler:
-.Sp
-.Vb 1
-\& static ev_async mysig;
-\&
-\& static void
-\& sigusr1_handler (void)
-\& {
-\& sometype data;
-\&
-\& // no locking etc.
-\& queue_put (data);
-\& ev_async_send (EV_DEFAULT_ &mysig);
-\& }
-\&
-\& static void
-\& mysig_cb (EV_P_ ev_async *w, int revents)
-\& {
-\& sometype data;
-\& sigset_t block, prev;
-\&
-\& sigemptyset (&block);
-\& sigaddset (&block, SIGUSR1);
-\& sigprocmask (SIG_BLOCK, &block, &prev);
-\&
-\& while (queue_get (&data))
-\& process (data);
-\&
-\& if (sigismember (&prev, SIGUSR1)
-\& sigprocmask (SIG_UNBLOCK, &block, 0);
-\& }
-.Ve
-.Sp
-(Note: pthreads in theory requires you to use \f(CW\*(C`pthread_setmask\*(C'\fR
-instead of \f(CW\*(C`sigprocmask\*(C'\fR when you use threads, but libev doesn't do it
-either...).
-.IP "queueing from a thread context" 4
-.IX Item "queueing from a thread context"
-The strategy for threads is different, as you cannot (easily) block
-threads but you can easily preempt them, so to queue safely you need to
-employ a traditional mutex lock, such as in this pthread example:
-.Sp
-.Vb 2
-\& static ev_async mysig;
-\& static pthread_mutex_t mymutex = PTHREAD_MUTEX_INITIALIZER;
-\&
-\& static void
-\& otherthread (void)
-\& {
-\& // only need to lock the actual queueing operation
-\& pthread_mutex_lock (&mymutex);
-\& queue_put (data);
-\& pthread_mutex_unlock (&mymutex);
-\&
-\& ev_async_send (EV_DEFAULT_ &mysig);
-\& }
-\&
-\& static void
-\& mysig_cb (EV_P_ ev_async *w, int revents)
-\& {
-\& pthread_mutex_lock (&mymutex);
-\&
-\& while (queue_get (&data))
-\& process (data);
-\&
-\& pthread_mutex_unlock (&mymutex);
-\& }
-.Ve
-.PP
-\fIWatcher-Specific Functions and Data Members\fR
-.IX Subsection "Watcher-Specific Functions and Data Members"
-.IP "ev_async_init (ev_async *, callback)" 4
-.IX Item "ev_async_init (ev_async *, callback)"
-Initialises and configures the async watcher \- it has no parameters of any
-kind. There is a \f(CW\*(C`ev_async_set\*(C'\fR macro, but using it is utterly pointless,
-trust me.
-.IP "ev_async_send (loop, ev_async *)" 4
-.IX Item "ev_async_send (loop, ev_async *)"
-Sends/signals/activates the given \f(CW\*(C`ev_async\*(C'\fR watcher, that is, feeds
-an \f(CW\*(C`EV_ASYNC\*(C'\fR event on the watcher into the event loop, and instantly
-returns.
-.Sp
-Unlike \f(CW\*(C`ev_feed_event\*(C'\fR, this call is safe to do from other threads,
-signal or similar contexts (see the discussion of \f(CW\*(C`EV_ATOMIC_T\*(C'\fR in the
-embedding section below on what exactly this means).
-.Sp
-Note that, as with other watchers in libev, multiple events might get
-compressed into a single callback invocation (another way to look at this
-is that \f(CW\*(C`ev_async\*(C'\fR watchers are level-triggered, set on \f(CW\*(C`ev_async_send\*(C'\fR,
-reset when the event loop detects that).
-.Sp
-This call incurs the overhead of a system call only once per event loop
-iteration, so while the overhead might be noticeable, it doesn't apply to
-repeated calls to \f(CW\*(C`ev_async_send\*(C'\fR for the same event loop.
-.IP "bool = ev_async_pending (ev_async *)" 4
-.IX Item "bool = ev_async_pending (ev_async *)"
-Returns a non-zero value when \f(CW\*(C`ev_async_send\*(C'\fR has been called on the
-watcher but the event has not yet been processed (or even noted) by the
-event loop.
-.Sp
-\&\f(CW\*(C`ev_async_send\*(C'\fR sets a flag in the watcher and wakes up the loop. When
-the loop iterates next and checks for the watcher to have become active,
-it will reset the flag again. \f(CW\*(C`ev_async_pending\*(C'\fR can be used to very
-quickly check whether invoking the loop might be a good idea.
-.Sp
-Not that this does \fInot\fR check whether the watcher itself is pending,
-only whether it has been requested to make this watcher pending: there
-is a time window between the event loop checking and resetting the async
-notification, and the callback being invoked.
-.SH "OTHER FUNCTIONS"
-.IX Header "OTHER FUNCTIONS"
-There are some other functions of possible interest. Described. Here. Now.
-.IP "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)" 4
-.IX Item "ev_once (loop, int fd, int events, ev_tstamp timeout, callback)"
-This function combines a simple timer and an I/O watcher, calls your
-callback on whichever event happens first and automatically stops both
-watchers. This is useful if you want to wait for a single event on an fd
-or timeout without having to allocate/configure/start/stop/free one or
-more watchers yourself.
-.Sp
-If \f(CW\*(C`fd\*(C'\fR is less than 0, then no I/O watcher will be started and the
-\&\f(CW\*(C`events\*(C'\fR argument is being ignored. Otherwise, an \f(CW\*(C`ev_io\*(C'\fR watcher for
-the given \f(CW\*(C`fd\*(C'\fR and \f(CW\*(C`events\*(C'\fR set will be created and started.
-.Sp
-If \f(CW\*(C`timeout\*(C'\fR is less than 0, then no timeout watcher will be
-started. Otherwise an \f(CW\*(C`ev_timer\*(C'\fR watcher with after = \f(CW\*(C`timeout\*(C'\fR (and
-repeat = 0) will be started. \f(CW0\fR is a valid timeout.
-.Sp
-The callback has the type \f(CW\*(C`void (*cb)(int revents, void *arg)\*(C'\fR and is
-passed an \f(CW\*(C`revents\*(C'\fR set like normal event callbacks (a combination of
-\&\f(CW\*(C`EV_ERROR\*(C'\fR, \f(CW\*(C`EV_READ\*(C'\fR, \f(CW\*(C`EV_WRITE\*(C'\fR or \f(CW\*(C`EV_TIMER\*(C'\fR) and the \f(CW\*(C`arg\*(C'\fR
-value passed to \f(CW\*(C`ev_once\*(C'\fR. Note that it is possible to receive \fIboth\fR
-a timeout and an io event at the same time \- you probably should give io
-events precedence.
-.Sp
-Example: wait up to ten seconds for data to appear on \s-1STDIN_FILENO\s0.
-.Sp
-.Vb 7
-\& static void stdin_ready (int revents, void *arg)
-\& {
-\& if (revents & EV_READ)
-\& /* stdin might have data for us, joy! */;
-\& else if (revents & EV_TIMER)
-\& /* doh, nothing entered */;
-\& }
-\&
-\& ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0);
-.Ve
-.IP "ev_feed_fd_event (loop, int fd, int revents)" 4
-.IX Item "ev_feed_fd_event (loop, int fd, int revents)"
-Feed an event on the given fd, as if a file descriptor backend detected
-the given events it.
-.IP "ev_feed_signal_event (loop, int signum)" 4
-.IX Item "ev_feed_signal_event (loop, int signum)"
-Feed an event as if the given signal occurred. See also \f(CW\*(C`ev_feed_signal\*(C'\fR,
-which is async-safe.
-.SH "COMMON OR USEFUL IDIOMS (OR BOTH)"
-.IX Header "COMMON OR USEFUL IDIOMS (OR BOTH)"
-This section explains some common idioms that are not immediately
-obvious. Note that examples are sprinkled over the whole manual, and this
-section only contains stuff that wouldn't fit anywhere else.
-.SS "\s-1ASSOCIATING\s0 \s-1CUSTOM\s0 \s-1DATA\s0 \s-1WITH\s0 A \s-1WATCHER\s0"
-.IX Subsection "ASSOCIATING CUSTOM DATA WITH A WATCHER"
-Each watcher has, by default, a \f(CW\*(C`void *data\*(C'\fR member that you can read
-or modify at any time: libev will completely ignore it. This can be used
-to associate arbitrary data with your watcher. If you need more data and
-don't want to allocate memory separately and store a pointer to it in that
-data member, you can also \*(L"subclass\*(R" the watcher type and provide your own
-data:
-.PP
-.Vb 7
-\& struct my_io
-\& {
-\& ev_io io;
-\& int otherfd;
-\& void *somedata;
-\& struct whatever *mostinteresting;
-\& };
-\&
-\& ...
-\& struct my_io w;
-\& ev_io_init (&w.io, my_cb, fd, EV_READ);
-.Ve
-.PP
-And since your callback will be called with a pointer to the watcher, you
-can cast it back to your own type:
-.PP
-.Vb 5
-\& static void my_cb (struct ev_loop *loop, ev_io *w_, int revents)
-\& {
-\& struct my_io *w = (struct my_io *)w_;
-\& ...
-\& }
-.Ve
-.PP
-More interesting and less C\-conformant ways of casting your callback
-function type instead have been omitted.
-.SS "\s-1BUILDING\s0 \s-1YOUR\s0 \s-1OWN\s0 \s-1COMPOSITE\s0 \s-1WATCHERS\s0"
-.IX Subsection "BUILDING YOUR OWN COMPOSITE WATCHERS"
-Another common scenario is to use some data structure with multiple
-embedded watchers, in effect creating your own watcher that combines
-multiple libev event sources into one \*(L"super-watcher\*(R":
-.PP
-.Vb 6
-\& struct my_biggy
-\& {
-\& int some_data;
-\& ev_timer t1;
-\& ev_timer t2;
-\& }
-.Ve
-.PP
-In this case getting the pointer to \f(CW\*(C`my_biggy\*(C'\fR is a bit more
-complicated: Either you store the address of your \f(CW\*(C`my_biggy\*(C'\fR struct in
-the \f(CW\*(C`data\*(C'\fR member of the watcher (for woozies or \*(C+ coders), or you need
-to use some pointer arithmetic using \f(CW\*(C`offsetof\*(C'\fR inside your watchers (for
-real programmers):
-.PP
-.Vb 1
-\& #include <stddef.h>
-\&
-\& static void
-\& t1_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& struct my_biggy big = (struct my_biggy *)
-\& (((char *)w) \- offsetof (struct my_biggy, t1));
-\& }
-\&
-\& static void
-\& t2_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& struct my_biggy big = (struct my_biggy *)
-\& (((char *)w) \- offsetof (struct my_biggy, t2));
-\& }
-.Ve
-.SS "\s-1MODEL/NESTED\s0 \s-1EVENT\s0 \s-1LOOP\s0 \s-1INVOCATIONS\s0 \s-1AND\s0 \s-1EXIT\s0 \s-1CONDITIONS\s0"
-.IX Subsection "MODEL/NESTED EVENT LOOP INVOCATIONS AND EXIT CONDITIONS"
-Often (especially in \s-1GUI\s0 toolkits) there are places where you have
-\&\fImodal\fR interaction, which is most easily implemented by recursively
-invoking \f(CW\*(C`ev_run\*(C'\fR.
-.PP
-This brings the problem of exiting \- a callback might want to finish the
-main \f(CW\*(C`ev_run\*(C'\fR call, but not the nested one (e.g. user clicked \*(L"Quit\*(R", but
-a modal \*(L"Are you sure?\*(R" dialog is still waiting), or just the nested one
-and not the main one (e.g. user clocked \*(L"Ok\*(R" in a modal dialog), or some
-other combination: In these cases, \f(CW\*(C`ev_break\*(C'\fR will not work alone.
-.PP
-The solution is to maintain \*(L"break this loop\*(R" variable for each \f(CW\*(C`ev_run\*(C'\fR
-invocation, and use a loop around \f(CW\*(C`ev_run\*(C'\fR until the condition is
-triggered, using \f(CW\*(C`EVRUN_ONCE\*(C'\fR:
-.PP
-.Vb 2
-\& // main loop
-\& int exit_main_loop = 0;
-\&
-\& while (!exit_main_loop)
-\& ev_run (EV_DEFAULT_ EVRUN_ONCE);
-\&
-\& // in a model watcher
-\& int exit_nested_loop = 0;
-\&
-\& while (!exit_nested_loop)
-\& ev_run (EV_A_ EVRUN_ONCE);
-.Ve
-.PP
-To exit from any of these loops, just set the corresponding exit variable:
-.PP
-.Vb 2
-\& // exit modal loop
-\& exit_nested_loop = 1;
-\&
-\& // exit main program, after modal loop is finished
-\& exit_main_loop = 1;
-\&
-\& // exit both
-\& exit_main_loop = exit_nested_loop = 1;
-.Ve
-.SS "\s-1THREAD\s0 \s-1LOCKING\s0 \s-1EXAMPLE\s0"
-.IX Subsection "THREAD LOCKING EXAMPLE"
-Here is a fictitious example of how to run an event loop in a different
-thread from where callbacks are being invoked and watchers are
-created/added/removed.
-.PP
-For a real-world example, see the \f(CW\*(C`EV::Loop::Async\*(C'\fR perl module,
-which uses exactly this technique (which is suited for many high-level
-languages).
-.PP
-The example uses a pthread mutex to protect the loop data, a condition
-variable to wait for callback invocations, an async watcher to notify the
-event loop thread and an unspecified mechanism to wake up the main thread.
-.PP
-First, you need to associate some data with the event loop:
-.PP
-.Vb 6
-\& typedef struct {
-\& mutex_t lock; /* global loop lock */
-\& ev_async async_w;
-\& thread_t tid;
-\& cond_t invoke_cv;
-\& } userdata;
-\&
-\& void prepare_loop (EV_P)
-\& {
-\& // for simplicity, we use a static userdata struct.
-\& static userdata u;
-\&
-\& ev_async_init (&u\->async_w, async_cb);
-\& ev_async_start (EV_A_ &u\->async_w);
-\&
-\& pthread_mutex_init (&u\->lock, 0);
-\& pthread_cond_init (&u\->invoke_cv, 0);
-\&
-\& // now associate this with the loop
-\& ev_set_userdata (EV_A_ u);
-\& ev_set_invoke_pending_cb (EV_A_ l_invoke);
-\& ev_set_loop_release_cb (EV_A_ l_release, l_acquire);
-\&
-\& // then create the thread running ev_run
-\& pthread_create (&u\->tid, 0, l_run, EV_A);
-\& }
-.Ve
-.PP
-The callback for the \f(CW\*(C`ev_async\*(C'\fR watcher does nothing: the watcher is used
-solely to wake up the event loop so it takes notice of any new watchers
-that might have been added:
-.PP
-.Vb 5
-\& static void
-\& async_cb (EV_P_ ev_async *w, int revents)
-\& {
-\& // just used for the side effects
-\& }
-.Ve
-.PP
-The \f(CW\*(C`l_release\*(C'\fR and \f(CW\*(C`l_acquire\*(C'\fR callbacks simply unlock/lock the mutex
-protecting the loop data, respectively.
-.PP
-.Vb 6
-\& static void
-\& l_release (EV_P)
-\& {
-\& userdata *u = ev_userdata (EV_A);
-\& pthread_mutex_unlock (&u\->lock);
-\& }
-\&
-\& static void
-\& l_acquire (EV_P)
-\& {
-\& userdata *u = ev_userdata (EV_A);
-\& pthread_mutex_lock (&u\->lock);
-\& }
-.Ve
-.PP
-The event loop thread first acquires the mutex, and then jumps straight
-into \f(CW\*(C`ev_run\*(C'\fR:
-.PP
-.Vb 4
-\& void *
-\& l_run (void *thr_arg)
-\& {
-\& struct ev_loop *loop = (struct ev_loop *)thr_arg;
-\&
-\& l_acquire (EV_A);
-\& pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
-\& ev_run (EV_A_ 0);
-\& l_release (EV_A);
-\&
-\& return 0;
-\& }
-.Ve
-.PP
-Instead of invoking all pending watchers, the \f(CW\*(C`l_invoke\*(C'\fR callback will
-signal the main thread via some unspecified mechanism (signals? pipe
-writes? \f(CW\*(C`Async::Interrupt\*(C'\fR?) and then waits until all pending watchers
-have been called (in a while loop because a) spurious wakeups are possible
-and b) skipping inter-thread-communication when there are no pending
-watchers is very beneficial):
-.PP
-.Vb 4
-\& static void
-\& l_invoke (EV_P)
-\& {
-\& userdata *u = ev_userdata (EV_A);
-\&
-\& while (ev_pending_count (EV_A))
-\& {
-\& wake_up_other_thread_in_some_magic_or_not_so_magic_way ();
-\& pthread_cond_wait (&u\->invoke_cv, &u\->lock);
-\& }
-\& }
-.Ve
-.PP
-Now, whenever the main thread gets told to invoke pending watchers, it
-will grab the lock, call \f(CW\*(C`ev_invoke_pending\*(C'\fR and then signal the loop
-thread to continue:
-.PP
-.Vb 4
-\& static void
-\& real_invoke_pending (EV_P)
-\& {
-\& userdata *u = ev_userdata (EV_A);
-\&
-\& pthread_mutex_lock (&u\->lock);
-\& ev_invoke_pending (EV_A);
-\& pthread_cond_signal (&u\->invoke_cv);
-\& pthread_mutex_unlock (&u\->lock);
-\& }
-.Ve
-.PP
-Whenever you want to start/stop a watcher or do other modifications to an
-event loop, you will now have to lock:
-.PP
-.Vb 2
-\& ev_timer timeout_watcher;
-\& userdata *u = ev_userdata (EV_A);
-\&
-\& ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-\&
-\& pthread_mutex_lock (&u\->lock);
-\& ev_timer_start (EV_A_ &timeout_watcher);
-\& ev_async_send (EV_A_ &u\->async_w);
-\& pthread_mutex_unlock (&u\->lock);
-.Ve
-.PP
-Note that sending the \f(CW\*(C`ev_async\*(C'\fR watcher is required because otherwise
-an event loop currently blocking in the kernel will have no knowledge
-about the newly added timer. By waking up the loop it will pick up any new
-watchers in the next event loop iteration.
-.SS "\s-1THREADS\s0, \s-1COROUTINES\s0, \s-1CONTINUATIONS\s0, \s-1QUEUES\s0... \s-1INSTEAD\s0 \s-1OF\s0 \s-1CALLBACKS\s0"
-.IX Subsection "THREADS, COROUTINES, CONTINUATIONS, QUEUES... INSTEAD OF CALLBACKS"
-While the overhead of a callback that e.g. schedules a thread is small, it
-is still an overhead. If you embed libev, and your main usage is with some
-kind of threads or coroutines, you might want to customise libev so that
-doesn't need callbacks anymore.
-.PP
-Imagine you have coroutines that you can switch to using a function
-\&\f(CW\*(C`switch_to (coro)\*(C'\fR, that libev runs in a coroutine called \f(CW\*(C`libev_coro\*(C'\fR
-and that due to some magic, the currently active coroutine is stored in a
-global called \f(CW\*(C`current_coro\*(C'\fR. Then you can build your own \*(L"wait for libev
-event\*(R" primitive by changing \f(CW\*(C`EV_CB_DECLARE\*(C'\fR and \f(CW\*(C`EV_CB_INVOKE\*(C'\fR (note
-the differing \f(CW\*(C`;\*(C'\fR conventions):
-.PP
-.Vb 2
-\& #define EV_CB_DECLARE(type) struct my_coro *cb;
-\& #define EV_CB_INVOKE(watcher) switch_to ((watcher)\->cb)
-.Ve
-.PP
-That means instead of having a C callback function, you store the
-coroutine to switch to in each watcher, and instead of having libev call
-your callback, you instead have it switch to that coroutine.
-.PP
-A coroutine might now wait for an event with a function called
-\&\f(CW\*(C`wait_for_event\*(C'\fR. (the watcher needs to be started, as always, but it doesn't
-matter when, or whether the watcher is active or not when this function is
-called):
-.PP
-.Vb 6
-\& void
-\& wait_for_event (ev_watcher *w)
-\& {
-\& ev_cb_set (w) = current_coro;
-\& switch_to (libev_coro);
-\& }
-.Ve
-.PP
-That basically suspends the coroutine inside \f(CW\*(C`wait_for_event\*(C'\fR and
-continues the libev coroutine, which, when appropriate, switches back to
-this or any other coroutine. I am sure if you sue this your own :)
-.PP
-You can do similar tricks if you have, say, threads with an event queue \-
-instead of storing a coroutine, you store the queue object and instead of
-switching to a coroutine, you push the watcher onto the queue and notify
-any waiters.
-.PP
-To embed libev, see \s-1EMBEDDING\s0, but in short, it's easiest to create two
-files, \fImy_ev.h\fR and \fImy_ev.c\fR that include the respective libev files:
-.PP
-.Vb 4
-\& // my_ev.h
-\& #define EV_CB_DECLARE(type) struct my_coro *cb;
-\& #define EV_CB_INVOKE(watcher) switch_to ((watcher)\->cb);
-\& #include "../libev/ev.h"
-\&
-\& // my_ev.c
-\& #define EV_H "my_ev.h"
-\& #include "../libev/ev.c"
-.Ve
-.PP
-And then use \fImy_ev.h\fR when you would normally use \fIev.h\fR, and compile
-\&\fImy_ev.c\fR into your project. When properly specifying include paths, you
-can even use \fIev.h\fR as header file name directly.
-.SH "LIBEVENT EMULATION"
-.IX Header "LIBEVENT EMULATION"
-Libev offers a compatibility emulation layer for libevent. It cannot
-emulate the internals of libevent, so here are some usage hints:
-.IP "\(bu" 4
-Only the libevent\-1.4.1\-beta \s-1API\s0 is being emulated.
-.Sp
-This was the newest libevent version available when libev was implemented,
-and is still mostly unchanged in 2010.
-.IP "\(bu" 4
-Use it by including <event.h>, as usual.
-.IP "\(bu" 4
-The following members are fully supported: ev_base, ev_callback,
-ev_arg, ev_fd, ev_res, ev_events.
-.IP "\(bu" 4
-Avoid using ev_flags and the EVLIST_*\-macros, while it is
-maintained by libev, it does not work exactly the same way as in libevent (consider
-it a private \s-1API\s0).
-.IP "\(bu" 4
-Priorities are not currently supported. Initialising priorities
-will fail and all watchers will have the same priority, even though there
-is an ev_pri field.
-.IP "\(bu" 4
-In libevent, the last base created gets the signals, in libev, the
-base that registered the signal gets the signals.
-.IP "\(bu" 4
-Other members are not supported.
-.IP "\(bu" 4
-The libev emulation is \fInot\fR \s-1ABI\s0 compatible to libevent, you need
-to use the libev header file and library.
-.SH "\*(C+ SUPPORT"
-.IX Header " SUPPORT"
-Libev comes with some simplistic wrapper classes for \*(C+ that mainly allow
-you to use some convenience methods to start/stop watchers and also change
-the callback model to a model using method callbacks on objects.
-.PP
-To use it,
-.PP
-.Vb 1
-\& #include <ev++.h>
-.Ve
-.PP
-This automatically includes \fIev.h\fR and puts all of its definitions (many
-of them macros) into the global namespace. All \*(C+ specific things are
-put into the \f(CW\*(C`ev\*(C'\fR namespace. It should support all the same embedding
-options as \fIev.h\fR, most notably \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR.
-.PP
-Care has been taken to keep the overhead low. The only data member the \*(C+
-classes add (compared to plain C\-style watchers) is the event loop pointer
-that the watcher is associated with (or no additional members at all if
-you disable \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR when embedding libev).
-.PP
-Currently, functions, static and non-static member functions and classes
-with \f(CW\*(C`operator ()\*(C'\fR can be used as callbacks. Other types should be easy
-to add as long as they only need one additional pointer for context. If
-you need support for other types of functors please contact the author
-(preferably after implementing it).
-.PP
-Here is a list of things available in the \f(CW\*(C`ev\*(C'\fR namespace:
-.ie n .IP """ev::READ"", ""ev::WRITE"" etc." 4
-.el .IP "\f(CWev::READ\fR, \f(CWev::WRITE\fR etc." 4
-.IX Item "ev::READ, ev::WRITE etc."
-These are just enum values with the same values as the \f(CW\*(C`EV_READ\*(C'\fR etc.
-macros from \fIev.h\fR.
-.ie n .IP """ev::tstamp"", ""ev::now""" 4
-.el .IP "\f(CWev::tstamp\fR, \f(CWev::now\fR" 4
-.IX Item "ev::tstamp, ev::now"
-Aliases to the same types/functions as with the \f(CW\*(C`ev_\*(C'\fR prefix.
-.ie n .IP """ev::io"", ""ev::timer"", ""ev::periodic"", ""ev::idle"", ""ev::sig"" etc." 4
-.el .IP "\f(CWev::io\fR, \f(CWev::timer\fR, \f(CWev::periodic\fR, \f(CWev::idle\fR, \f(CWev::sig\fR etc." 4
-.IX Item "ev::io, ev::timer, ev::periodic, ev::idle, ev::sig etc."
-For each \f(CW\*(C`ev_TYPE\*(C'\fR watcher in \fIev.h\fR there is a corresponding class of
-the same name in the \f(CW\*(C`ev\*(C'\fR namespace, with the exception of \f(CW\*(C`ev_signal\*(C'\fR
-which is called \f(CW\*(C`ev::sig\*(C'\fR to avoid clashes with the \f(CW\*(C`signal\*(C'\fR macro
-defines by many implementations.
-.Sp
-All of those classes have these methods:
-.RS 4
-.IP "ev::TYPE::TYPE ()" 4
-.IX Item "ev::TYPE::TYPE ()"
-.PD 0
-.IP "ev::TYPE::TYPE (loop)" 4
-.IX Item "ev::TYPE::TYPE (loop)"
-.IP "ev::TYPE::~TYPE" 4
-.IX Item "ev::TYPE::~TYPE"
-.PD
-The constructor (optionally) takes an event loop to associate the watcher
-with. If it is omitted, it will use \f(CW\*(C`EV_DEFAULT\*(C'\fR.
-.Sp
-The constructor calls \f(CW\*(C`ev_init\*(C'\fR for you, which means you have to call the
-\&\f(CW\*(C`set\*(C'\fR method before starting it.
-.Sp
-It will not set a callback, however: You have to call the templated \f(CW\*(C`set\*(C'\fR
-method to set a callback before you can start the watcher.
-.Sp
-(The reason why you have to use a method is a limitation in \*(C+ which does
-not allow explicit template arguments for constructors).
-.Sp
-The destructor automatically stops the watcher if it is active.
-.IP "w\->set<class, &class::method> (object *)" 4
-.IX Item "w->set<class, &class::method> (object *)"
-This method sets the callback method to call. The method has to have a
-signature of \f(CW\*(C`void (*)(ev_TYPE &, int)\*(C'\fR, it receives the watcher as
-first argument and the \f(CW\*(C`revents\*(C'\fR as second. The object must be given as
-parameter and is stored in the \f(CW\*(C`data\*(C'\fR member of the watcher.
-.Sp
-This method synthesizes efficient thunking code to call your method from
-the C callback that libev requires. If your compiler can inline your
-callback (i.e. it is visible to it at the place of the \f(CW\*(C`set\*(C'\fR call and
-your compiler is good :), then the method will be fully inlined into the
-thunking function, making it as fast as a direct C callback.
-.Sp
-Example: simple class declaration and watcher initialisation
-.Sp
-.Vb 4
-\& struct myclass
-\& {
-\& void io_cb (ev::io &w, int revents) { }
-\& }
-\&
-\& myclass obj;
-\& ev::io iow;
-\& iow.set <myclass, &myclass::io_cb> (&obj);
-.Ve
-.IP "w\->set (object *)" 4
-.IX Item "w->set (object *)"
-This is a variation of a method callback \- leaving out the method to call
-will default the method to \f(CW\*(C`operator ()\*(C'\fR, which makes it possible to use
-functor objects without having to manually specify the \f(CW\*(C`operator ()\*(C'\fR all
-the time. Incidentally, you can then also leave out the template argument
-list.
-.Sp
-The \f(CW\*(C`operator ()\*(C'\fR method prototype must be \f(CW\*(C`void operator ()(watcher &w,
-int revents)\*(C'\fR.
-.Sp
-See the method\-\f(CW\*(C`set\*(C'\fR above for more details.
-.Sp
-Example: use a functor object as callback.
-.Sp
-.Vb 7
-\& struct myfunctor
-\& {
-\& void operator() (ev::io &w, int revents)
-\& {
-\& ...
-\& }
-\& }
-\&
-\& myfunctor f;
-\&
-\& ev::io w;
-\& w.set (&f);
-.Ve
-.IP "w\->set<function> (void *data = 0)" 4
-.IX Item "w->set<function> (void *data = 0)"
-Also sets a callback, but uses a static method or plain function as
-callback. The optional \f(CW\*(C`data\*(C'\fR argument will be stored in the watcher's
-\&\f(CW\*(C`data\*(C'\fR member and is free for you to use.
-.Sp
-The prototype of the \f(CW\*(C`function\*(C'\fR must be \f(CW\*(C`void (*)(ev::TYPE &w, int)\*(C'\fR.
-.Sp
-See the method\-\f(CW\*(C`set\*(C'\fR above for more details.
-.Sp
-Example: Use a plain function as callback.
-.Sp
-.Vb 2
-\& static void io_cb (ev::io &w, int revents) { }
-\& iow.set <io_cb> ();
-.Ve
-.IP "w\->set (loop)" 4
-.IX Item "w->set (loop)"
-Associates a different \f(CW\*(C`struct ev_loop\*(C'\fR with this watcher. You can only
-do this when the watcher is inactive (and not pending either).
-.IP "w\->set ([arguments])" 4
-.IX Item "w->set ([arguments])"
-Basically the same as \f(CW\*(C`ev_TYPE_set\*(C'\fR, with the same arguments. Either this
-method or a suitable start method must be called at least once. Unlike the
-C counterpart, an active watcher gets automatically stopped and restarted
-when reconfiguring it with this method.
-.IP "w\->start ()" 4
-.IX Item "w->start ()"
-Starts the watcher. Note that there is no \f(CW\*(C`loop\*(C'\fR argument, as the
-constructor already stores the event loop.
-.IP "w\->start ([arguments])" 4
-.IX Item "w->start ([arguments])"
-Instead of calling \f(CW\*(C`set\*(C'\fR and \f(CW\*(C`start\*(C'\fR methods separately, it is often
-convenient to wrap them in one call. Uses the same type of arguments as
-the configure \f(CW\*(C`set\*(C'\fR method of the watcher.
-.IP "w\->stop ()" 4
-.IX Item "w->stop ()"
-Stops the watcher if it is active. Again, no \f(CW\*(C`loop\*(C'\fR argument.
-.ie n .IP "w\->again () (""ev::timer"", ""ev::periodic"" only)" 4
-.el .IP "w\->again () (\f(CWev::timer\fR, \f(CWev::periodic\fR only)" 4
-.IX Item "w->again () (ev::timer, ev::periodic only)"
-For \f(CW\*(C`ev::timer\*(C'\fR and \f(CW\*(C`ev::periodic\*(C'\fR, this invokes the corresponding
-\&\f(CW\*(C`ev_TYPE_again\*(C'\fR function.
-.ie n .IP "w\->sweep () (""ev::embed"" only)" 4
-.el .IP "w\->sweep () (\f(CWev::embed\fR only)" 4
-.IX Item "w->sweep () (ev::embed only)"
-Invokes \f(CW\*(C`ev_embed_sweep\*(C'\fR.
-.ie n .IP "w\->update () (""ev::stat"" only)" 4
-.el .IP "w\->update () (\f(CWev::stat\fR only)" 4
-.IX Item "w->update () (ev::stat only)"
-Invokes \f(CW\*(C`ev_stat_stat\*(C'\fR.
-.RE
-.RS 4
-.RE
-.PP
-Example: Define a class with two I/O and idle watchers, start the I/O
-watchers in the constructor.
-.PP
-.Vb 5
-\& class myclass
-\& {
-\& ev::io io ; void io_cb (ev::io &w, int revents);
-\& ev::io2 io2 ; void io2_cb (ev::io &w, int revents);
-\& ev::idle idle; void idle_cb (ev::idle &w, int revents);
-\&
-\& myclass (int fd)
-\& {
-\& io .set <myclass, &myclass::io_cb > (this);
-\& io2 .set <myclass, &myclass::io2_cb > (this);
-\& idle.set <myclass, &myclass::idle_cb> (this);
-\&
-\& io.set (fd, ev::WRITE); // configure the watcher
-\& io.start (); // start it whenever convenient
-\&
-\& io2.start (fd, ev::READ); // set + start in one call
-\& }
-\& };
-.Ve
-.SH "OTHER LANGUAGE BINDINGS"
-.IX Header "OTHER LANGUAGE BINDINGS"
-Libev does not offer other language bindings itself, but bindings for a
-number of languages exist in the form of third-party packages. If you know
-any interesting language binding in addition to the ones listed here, drop
-me a note.
-.IP "Perl" 4
-.IX Item "Perl"
-The \s-1EV\s0 module implements the full libev \s-1API\s0 and is actually used to test
-libev. \s-1EV\s0 is developed together with libev. Apart from the \s-1EV\s0 core module,
-there are additional modules that implement libev-compatible interfaces
-to \f(CW\*(C`libadns\*(C'\fR (\f(CW\*(C`EV::ADNS\*(C'\fR, but \f(CW\*(C`AnyEvent::DNS\*(C'\fR is preferred nowadays),
-\&\f(CW\*(C`Net::SNMP\*(C'\fR (\f(CW\*(C`Net::SNMP::EV\*(C'\fR) and the \f(CW\*(C`libglib\*(C'\fR event core (\f(CW\*(C`Glib::EV\*(C'\fR
-and \f(CW\*(C`EV::Glib\*(C'\fR).
-.Sp
-It can be found and installed via \s-1CPAN\s0, its homepage is at
-<http://software.schmorp.de/pkg/EV>.
-.IP "Python" 4
-.IX Item "Python"
-Python bindings can be found at <http://code.google.com/p/pyev/>. It
-seems to be quite complete and well-documented.
-.IP "Ruby" 4
-.IX Item "Ruby"
-Tony Arcieri has written a ruby extension that offers access to a subset
-of the libev \s-1API\s0 and adds file handle abstractions, asynchronous \s-1DNS\s0 and
-more on top of it. It can be found via gem servers. Its homepage is at
-<http://rev.rubyforge.org/>.
-.Sp
-Roger Pack reports that using the link order \f(CW\*(C`\-lws2_32 \-lmsvcrt\-ruby\-190\*(C'\fR
-makes rev work even on mingw.
-.IP "Haskell" 4
-.IX Item "Haskell"
-A haskell binding to libev is available at
-<http://hackage.haskell.org/cgi\-bin/hackage\-scripts/package/hlibev>.
-.IP "D" 4
-.IX Item "D"
-Leandro Lucarella has written a D language binding (\fIev.d\fR) for libev, to
-be found at <http://proj.llucax.com.ar/wiki/evd>.
-.IP "Ocaml" 4
-.IX Item "Ocaml"
-Erkki Seppala has written Ocaml bindings for libev, to be found at
-<http://modeemi.cs.tut.fi/~flux/software/ocaml\-ev/>.
-.IP "Lua" 4
-.IX Item "Lua"
-Brian Maher has written a partial interface to libev for lua (at the
-time of this writing, only \f(CW\*(C`ev_io\*(C'\fR and \f(CW\*(C`ev_timer\*(C'\fR), to be found at
-<http://github.com/brimworks/lua\-ev>.
-.SH "MACRO MAGIC"
-.IX Header "MACRO MAGIC"
-Libev can be compiled with a variety of options, the most fundamental
-of which is \f(CW\*(C`EV_MULTIPLICITY\*(C'\fR. This option determines whether (most)
-functions and callbacks have an initial \f(CW\*(C`struct ev_loop *\*(C'\fR argument.
-.PP
-To make it easier to write programs that cope with either variant, the
-following macros are defined:
-.ie n .IP """EV_A"", ""EV_A_""" 4
-.el .IP "\f(CWEV_A\fR, \f(CWEV_A_\fR" 4
-.IX Item "EV_A, EV_A_"
-This provides the loop \fIargument\fR for functions, if one is required (\*(L"ev
-loop argument\*(R"). The \f(CW\*(C`EV_A\*(C'\fR form is used when this is the sole argument,
-\&\f(CW\*(C`EV_A_\*(C'\fR is used when other arguments are following. Example:
-.Sp
-.Vb 3
-\& ev_unref (EV_A);
-\& ev_timer_add (EV_A_ watcher);
-\& ev_run (EV_A_ 0);
-.Ve
-.Sp
-It assumes the variable \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR is in scope,
-which is often provided by the following macro.
-.ie n .IP """EV_P"", ""EV_P_""" 4
-.el .IP "\f(CWEV_P\fR, \f(CWEV_P_\fR" 4
-.IX Item "EV_P, EV_P_"
-This provides the loop \fIparameter\fR for functions, if one is required (\*(L"ev
-loop parameter\*(R"). The \f(CW\*(C`EV_P\*(C'\fR form is used when this is the sole parameter,
-\&\f(CW\*(C`EV_P_\*(C'\fR is used when other parameters are following. Example:
-.Sp
-.Vb 2
-\& // this is how ev_unref is being declared
-\& static void ev_unref (EV_P);
-\&
-\& // this is how you can declare your typical callback
-\& static void cb (EV_P_ ev_timer *w, int revents)
-.Ve
-.Sp
-It declares a parameter \f(CW\*(C`loop\*(C'\fR of type \f(CW\*(C`struct ev_loop *\*(C'\fR, quite
-suitable for use with \f(CW\*(C`EV_A\*(C'\fR.
-.ie n .IP """EV_DEFAULT"", ""EV_DEFAULT_""" 4
-.el .IP "\f(CWEV_DEFAULT\fR, \f(CWEV_DEFAULT_\fR" 4
-.IX Item "EV_DEFAULT, EV_DEFAULT_"
-Similar to the other two macros, this gives you the value of the default
-loop, if multiple loops are supported (\*(L"ev loop default\*(R").
-.ie n .IP """EV_DEFAULT_UC"", ""EV_DEFAULT_UC_""" 4
-.el .IP "\f(CWEV_DEFAULT_UC\fR, \f(CWEV_DEFAULT_UC_\fR" 4
-.IX Item "EV_DEFAULT_UC, EV_DEFAULT_UC_"
-Usage identical to \f(CW\*(C`EV_DEFAULT\*(C'\fR and \f(CW\*(C`EV_DEFAULT_\*(C'\fR, but requires that the
-default loop has been initialised (\f(CW\*(C`UC\*(C'\fR == unchecked). Their behaviour
-is undefined when the default loop has not been initialised by a previous
-execution of \f(CW\*(C`EV_DEFAULT\*(C'\fR, \f(CW\*(C`EV_DEFAULT_\*(C'\fR or \f(CW\*(C`ev_default_init (...)\*(C'\fR.
-.Sp
-It is often prudent to use \f(CW\*(C`EV_DEFAULT\*(C'\fR when initialising the first
-watcher in a function but use \f(CW\*(C`EV_DEFAULT_UC\*(C'\fR afterwards.
-.PP
-Example: Declare and initialise a check watcher, utilising the above
-macros so it will work regardless of whether multiple loops are supported
-or not.
-.PP
-.Vb 5
-\& static void
-\& check_cb (EV_P_ ev_timer *w, int revents)
-\& {
-\& ev_check_stop (EV_A_ w);
-\& }
-\&
-\& ev_check check;
-\& ev_check_init (&check, check_cb);
-\& ev_check_start (EV_DEFAULT_ &check);
-\& ev_run (EV_DEFAULT_ 0);
-.Ve
-.SH "EMBEDDING"
-.IX Header "EMBEDDING"
-Libev can (and often is) directly embedded into host
-applications. Examples of applications that embed it include the Deliantra
-Game Server, the \s-1EV\s0 perl module, the \s-1GNU\s0 Virtual Private Ethernet (gvpe)
-and rxvt-unicode.
-.PP
-The goal is to enable you to just copy the necessary files into your
-source directory without having to change even a single line in them, so
-you can easily upgrade by simply copying (or having a checked-out copy of
-libev somewhere in your source tree).
-.SS "\s-1FILESETS\s0"
-.IX Subsection "FILESETS"
-Depending on what features you need you need to include one or more sets of files
-in your application.
-.PP
-\fI\s-1CORE\s0 \s-1EVENT\s0 \s-1LOOP\s0\fR
-.IX Subsection "CORE EVENT LOOP"
-.PP
-To include only the libev core (all the \f(CW\*(C`ev_*\*(C'\fR functions), with manual
-configuration (no autoconf):
-.PP
-.Vb 2
-\& #define EV_STANDALONE 1
-\& #include "ev.c"
-.Ve
-.PP
-This will automatically include \fIev.h\fR, too, and should be done in a
-single C source file only to provide the function implementations. To use
-it, do the same for \fIev.h\fR in all files wishing to use this \s-1API\s0 (best
-done by writing a wrapper around \fIev.h\fR that you can include instead and
-where you can put other configuration options):
-.PP
-.Vb 2
-\& #define EV_STANDALONE 1
-\& #include "ev.h"
-.Ve
-.PP
-Both header files and implementation files can be compiled with a \*(C+
-compiler (at least, that's a stated goal, and breakage will be treated
-as a bug).
-.PP
-You need the following files in your source tree, or in a directory
-in your include path (e.g. in libev/ when using \-Ilibev):
-.PP
-.Vb 4
-\& ev.h
-\& ev.c
-\& ev_vars.h
-\& ev_wrap.h
-\&
-\& ev_win32.c required on win32 platforms only
-\&
-\& ev_select.c only when select backend is enabled (which is enabled by default)
-\& ev_poll.c only when poll backend is enabled (disabled by default)
-\& ev_epoll.c only when the epoll backend is enabled (disabled by default)
-\& ev_kqueue.c only when the kqueue backend is enabled (disabled by default)
-\& ev_port.c only when the solaris port backend is enabled (disabled by default)
-.Ve
-.PP
-\&\fIev.c\fR includes the backend files directly when enabled, so you only need
-to compile this single file.
-.PP
-\fI\s-1LIBEVENT\s0 \s-1COMPATIBILITY\s0 \s-1API\s0\fR
-.IX Subsection "LIBEVENT COMPATIBILITY API"
-.PP
-To include the libevent compatibility \s-1API\s0, also include:
-.PP
-.Vb 1
-\& #include "event.c"
-.Ve
-.PP
-in the file including \fIev.c\fR, and:
-.PP
-.Vb 1
-\& #include "event.h"
-.Ve
-.PP
-in the files that want to use the libevent \s-1API\s0. This also includes \fIev.h\fR.
-.PP
-You need the following additional files for this:
-.PP
-.Vb 2
-\& event.h
-\& event.c
-.Ve
-.PP
-\fI\s-1AUTOCONF\s0 \s-1SUPPORT\s0\fR
-.IX Subsection "AUTOCONF SUPPORT"
-.PP
-Instead of using \f(CW\*(C`EV_STANDALONE=1\*(C'\fR and providing your configuration in
-whatever way you want, you can also \f(CW\*(C`m4_include([libev.m4])\*(C'\fR in your
-\&\fIconfigure.ac\fR and leave \f(CW\*(C`EV_STANDALONE\*(C'\fR undefined. \fIev.c\fR will then
-include \fIconfig.h\fR and configure itself accordingly.
-.PP
-For this of course you need the m4 file:
-.PP
-.Vb 1
-\& libev.m4
-.Ve
-.SS "\s-1PREPROCESSOR\s0 \s-1SYMBOLS/MACROS\s0"
-.IX Subsection "PREPROCESSOR SYMBOLS/MACROS"
-Libev can be configured via a variety of preprocessor symbols you have to
-define before including (or compiling) any of its files. The default in
-the absence of autoconf is documented for every option.
-.PP
-Symbols marked with \*(L"(h)\*(R" do not change the \s-1ABI\s0, and can have different
-values when compiling libev vs. including \fIev.h\fR, so it is permissible
-to redefine them before including \fIev.h\fR without breaking compatibility
-to a compiled library. All other symbols change the \s-1ABI\s0, which means all
-users of libev and the libev code itself must be compiled with compatible
-settings.
-.IP "\s-1EV_COMPAT3\s0 (h)" 4
-.IX Item "EV_COMPAT3 (h)"
-Backwards compatibility is a major concern for libev. This is why this
-release of libev comes with wrappers for the functions and symbols that
-have been renamed between libev version 3 and 4.
-.Sp
-You can disable these wrappers (to test compatibility with future
-versions) by defining \f(CW\*(C`EV_COMPAT3\*(C'\fR to \f(CW0\fR when compiling your
-sources. This has the additional advantage that you can drop the \f(CW\*(C`struct\*(C'\fR
-from \f(CW\*(C`struct ev_loop\*(C'\fR declarations, as libev will provide an \f(CW\*(C`ev_loop\*(C'\fR
-typedef in that case.
-.Sp
-In some future version, the default for \f(CW\*(C`EV_COMPAT3\*(C'\fR will become \f(CW0\fR,
-and in some even more future version the compatibility code will be
-removed completely.
-.IP "\s-1EV_STANDALONE\s0 (h)" 4
-.IX Item "EV_STANDALONE (h)"
-Must always be \f(CW1\fR if you do not use autoconf configuration, which
-keeps libev from including \fIconfig.h\fR, and it also defines dummy
-implementations for some libevent functions (such as logging, which is not
-supported). It will also not define any of the structs usually found in
-\&\fIevent.h\fR that are not directly supported by the libev core alone.
-.Sp
-In standalone mode, libev will still try to automatically deduce the
-configuration, but has to be more conservative.
-.IP "\s-1EV_USE_MONOTONIC\s0" 4
-.IX Item "EV_USE_MONOTONIC"
-If defined to be \f(CW1\fR, libev will try to detect the availability of the
-monotonic clock option at both compile time and runtime. Otherwise no
-use of the monotonic clock option will be attempted. If you enable this,
-you usually have to link against librt or something similar. Enabling it
-when the functionality isn't available is safe, though, although you have
-to make sure you link against any libraries where the \f(CW\*(C`clock_gettime\*(C'\fR
-function is hiding in (often \fI\-lrt\fR). See also \f(CW\*(C`EV_USE_CLOCK_SYSCALL\*(C'\fR.
-.IP "\s-1EV_USE_REALTIME\s0" 4
-.IX Item "EV_USE_REALTIME"
-If defined to be \f(CW1\fR, libev will try to detect the availability of the
-real-time clock option at compile time (and assume its availability
-at runtime if successful). Otherwise no use of the real-time clock
-option will be attempted. This effectively replaces \f(CW\*(C`gettimeofday\*(C'\fR
-by \f(CW\*(C`clock_get (CLOCK_REALTIME, ...)\*(C'\fR and will not normally affect
-correctness. See the note about libraries in the description of
-\&\f(CW\*(C`EV_USE_MONOTONIC\*(C'\fR, though. Defaults to the opposite value of
-\&\f(CW\*(C`EV_USE_CLOCK_SYSCALL\*(C'\fR.
-.IP "\s-1EV_USE_CLOCK_SYSCALL\s0" 4
-.IX Item "EV_USE_CLOCK_SYSCALL"
-If defined to be \f(CW1\fR, libev will try to use a direct syscall instead
-of calling the system-provided \f(CW\*(C`clock_gettime\*(C'\fR function. This option
-exists because on GNU/Linux, \f(CW\*(C`clock_gettime\*(C'\fR is in \f(CW\*(C`librt\*(C'\fR, but \f(CW\*(C`librt\*(C'\fR
-unconditionally pulls in \f(CW\*(C`libpthread\*(C'\fR, slowing down single-threaded
-programs needlessly. Using a direct syscall is slightly slower (in
-theory), because no optimised vdso implementation can be used, but avoids
-the pthread dependency. Defaults to \f(CW1\fR on GNU/Linux with glibc 2.x or
-higher, as it simplifies linking (no need for \f(CW\*(C`\-lrt\*(C'\fR).
-.IP "\s-1EV_USE_NANOSLEEP\s0" 4
-.IX Item "EV_USE_NANOSLEEP"
-If defined to be \f(CW1\fR, libev will assume that \f(CW\*(C`nanosleep ()\*(C'\fR is available
-and will use it for delays. Otherwise it will use \f(CW\*(C`select ()\*(C'\fR.
-.IP "\s-1EV_USE_EVENTFD\s0" 4
-.IX Item "EV_USE_EVENTFD"
-If defined to be \f(CW1\fR, then libev will assume that \f(CW\*(C`eventfd ()\*(C'\fR is
-available and will probe for kernel support at runtime. This will improve
-\&\f(CW\*(C`ev_signal\*(C'\fR and \f(CW\*(C`ev_async\*(C'\fR performance and reduce resource consumption.
-If undefined, it will be enabled if the headers indicate GNU/Linux + Glibc
-2.7 or newer, otherwise disabled.
-.IP "\s-1EV_USE_SELECT\s0" 4
-.IX Item "EV_USE_SELECT"
-If undefined or defined to be \f(CW1\fR, libev will compile in support for the
-\&\f(CW\*(C`select\*(C'\fR(2) backend. No attempt at auto-detection will be done: if no
-other method takes over, select will be it. Otherwise the select backend
-will not be compiled in.
-.IP "\s-1EV_SELECT_USE_FD_SET\s0" 4
-.IX Item "EV_SELECT_USE_FD_SET"
-If defined to \f(CW1\fR, then the select backend will use the system \f(CW\*(C`fd_set\*(C'\fR
-structure. This is useful if libev doesn't compile due to a missing
-\&\f(CW\*(C`NFDBITS\*(C'\fR or \f(CW\*(C`fd_mask\*(C'\fR definition or it mis-guesses the bitset layout
-on exotic systems. This usually limits the range of file descriptors to
-some low limit such as 1024 or might have other limitations (winsocket
-only allows 64 sockets). The \f(CW\*(C`FD_SETSIZE\*(C'\fR macro, set before compilation,
-configures the maximum size of the \f(CW\*(C`fd_set\*(C'\fR.
-.IP "\s-1EV_SELECT_IS_WINSOCKET\s0" 4
-.IX Item "EV_SELECT_IS_WINSOCKET"
-When defined to \f(CW1\fR, the select backend will assume that
-select/socket/connect etc. don't understand file descriptors but
-wants osf handles on win32 (this is the case when the select to
-be used is the winsock select). This means that it will call
-\&\f(CW\*(C`_get_osfhandle\*(C'\fR on the fd to convert it to an \s-1OS\s0 handle. Otherwise,
-it is assumed that all these functions actually work on fds, even
-on win32. Should not be defined on non\-win32 platforms.
-.IP "\s-1EV_FD_TO_WIN32_HANDLE\s0(fd)" 4
-.IX Item "EV_FD_TO_WIN32_HANDLE(fd)"
-If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR is enabled, then libev needs a way to map
-file descriptors to socket handles. When not defining this symbol (the
-default), then libev will call \f(CW\*(C`_get_osfhandle\*(C'\fR, which is usually
-correct. In some cases, programs use their own file descriptor management,
-in which case they can provide this function to map fds to socket handles.
-.IP "\s-1EV_WIN32_HANDLE_TO_FD\s0(handle)" 4
-.IX Item "EV_WIN32_HANDLE_TO_FD(handle)"
-If \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR then libev maps handles to file descriptors
-using the standard \f(CW\*(C`_open_osfhandle\*(C'\fR function. For programs implementing
-their own fd to handle mapping, overwriting this function makes it easier
-to do so. This can be done by defining this macro to an appropriate value.
-.IP "\s-1EV_WIN32_CLOSE_FD\s0(fd)" 4
-.IX Item "EV_WIN32_CLOSE_FD(fd)"
-If programs implement their own fd to handle mapping on win32, then this
-macro can be used to override the \f(CW\*(C`close\*(C'\fR function, useful to unregister
-file descriptors again. Note that the replacement function has to close
-the underlying \s-1OS\s0 handle.
-.IP "\s-1EV_USE_POLL\s0" 4
-.IX Item "EV_USE_POLL"
-If defined to be \f(CW1\fR, libev will compile in support for the \f(CW\*(C`poll\*(C'\fR(2)
-backend. Otherwise it will be enabled on non\-win32 platforms. It
-takes precedence over select.
-.IP "\s-1EV_USE_EPOLL\s0" 4
-.IX Item "EV_USE_EPOLL"
-If defined to be \f(CW1\fR, libev will compile in support for the Linux
-\&\f(CW\*(C`epoll\*(C'\fR(7) backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for GNU/Linux systems. If undefined, it will be enabled if the
-headers indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-.IP "\s-1EV_USE_KQUEUE\s0" 4
-.IX Item "EV_USE_KQUEUE"
-If defined to be \f(CW1\fR, libev will compile in support for the \s-1BSD\s0 style
-\&\f(CW\*(C`kqueue\*(C'\fR(2) backend. Its actual availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for \s-1BSD\s0 and BSD-like systems, although on most BSDs kqueue only
-supports some types of fds correctly (the only platform we found that
-supports ptys for example was NetBSD), so kqueue might be compiled in, but
-not be used unless explicitly requested. The best way to use it is to find
-out whether kqueue supports your type of fd properly and use an embedded
-kqueue loop.
-.IP "\s-1EV_USE_PORT\s0" 4
-.IX Item "EV_USE_PORT"
-If defined to be \f(CW1\fR, libev will compile in support for the Solaris
-10 port style backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for Solaris 10 systems.
-.IP "\s-1EV_USE_DEVPOLL\s0" 4
-.IX Item "EV_USE_DEVPOLL"
-Reserved for future expansion, works like the \s-1USE\s0 symbols above.
-.IP "\s-1EV_USE_INOTIFY\s0" 4
-.IX Item "EV_USE_INOTIFY"
-If defined to be \f(CW1\fR, libev will compile in support for the Linux inotify
-interface to speed up \f(CW\*(C`ev_stat\*(C'\fR watchers. Its actual availability will
-be detected at runtime. If undefined, it will be enabled if the headers
-indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-.IP "\s-1EV_ATOMIC_T\s0" 4
-.IX Item "EV_ATOMIC_T"
-Libev requires an integer type (suitable for storing \f(CW0\fR or \f(CW1\fR) whose
-access is atomic with respect to other threads or signal contexts. No such
-type is easily found in the C language, so you can provide your own type
-that you know is safe for your purposes. It is used both for signal handler \*(L"locking\*(R"
-as well as for signal and thread safety in \f(CW\*(C`ev_async\*(C'\fR watchers.
-.Sp
-In the absence of this define, libev will use \f(CW\*(C`sig_atomic_t volatile\*(C'\fR
-(from \fIsignal.h\fR), which is usually good enough on most platforms.
-.IP "\s-1EV_H\s0 (h)" 4
-.IX Item "EV_H (h)"
-The name of the \fIev.h\fR header file used to include it. The default if
-undefined is \f(CW"ev.h"\fR in \fIevent.h\fR, \fIev.c\fR and \fIev++.h\fR. This can be
-used to virtually rename the \fIev.h\fR header file in case of conflicts.
-.IP "\s-1EV_CONFIG_H\s0 (h)" 4
-.IX Item "EV_CONFIG_H (h)"
-If \f(CW\*(C`EV_STANDALONE\*(C'\fR isn't \f(CW1\fR, this variable can be used to override
-\&\fIev.c\fR's idea of where to find the \fIconfig.h\fR file, similarly to
-\&\f(CW\*(C`EV_H\*(C'\fR, above.
-.IP "\s-1EV_EVENT_H\s0 (h)" 4
-.IX Item "EV_EVENT_H (h)"
-Similarly to \f(CW\*(C`EV_H\*(C'\fR, this macro can be used to override \fIevent.c\fR's idea
-of how the \fIevent.h\fR header can be found, the default is \f(CW"event.h"\fR.
-.IP "\s-1EV_PROTOTYPES\s0 (h)" 4
-.IX Item "EV_PROTOTYPES (h)"
-If defined to be \f(CW0\fR, then \fIev.h\fR will not define any function
-prototypes, but still define all the structs and other symbols. This is
-occasionally useful if you want to provide your own wrapper functions
-around libev functions.
-.IP "\s-1EV_MULTIPLICITY\s0" 4
-.IX Item "EV_MULTIPLICITY"
-If undefined or defined to \f(CW1\fR, then all event-loop-specific functions
-will have the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument, and you can create
-additional independent event loops. Otherwise there will be no support
-for multiple event loops and there is no first event loop pointer
-argument. Instead, all functions act on the single default loop.
-.IP "\s-1EV_MINPRI\s0" 4
-.IX Item "EV_MINPRI"
-.PD 0
-.IP "\s-1EV_MAXPRI\s0" 4
-.IX Item "EV_MAXPRI"
-.PD
-The range of allowed priorities. \f(CW\*(C`EV_MINPRI\*(C'\fR must be smaller or equal to
-\&\f(CW\*(C`EV_MAXPRI\*(C'\fR, but otherwise there are no non-obvious limitations. You can
-provide for more priorities by overriding those symbols (usually defined
-to be \f(CW\*(C`\-2\*(C'\fR and \f(CW2\fR, respectively).
-.Sp
-When doing priority-based operations, libev usually has to linearly search
-all the priorities, so having many of them (hundreds) uses a lot of space
-and time, so using the defaults of five priorities (\-2 .. +2) is usually
-fine.
-.Sp
-If your embedding application does not need any priorities, defining these
-both to \f(CW0\fR will save some memory and \s-1CPU\s0.
-.IP "\s-1EV_PERIODIC_ENABLE\s0, \s-1EV_IDLE_ENABLE\s0, \s-1EV_EMBED_ENABLE\s0, \s-1EV_STAT_ENABLE\s0, \s-1EV_PREPARE_ENABLE\s0, \s-1EV_CHECK_ENABLE\s0, \s-1EV_FORK_ENABLE\s0, \s-1EV_SIGNAL_ENABLE\s0, \s-1EV_ASYNC_ENABLE\s0, \s-1EV_CHILD_ENABLE\s0." 4
-.IX Item "EV_PERIODIC_ENABLE, EV_IDLE_ENABLE, EV_EMBED_ENABLE, EV_STAT_ENABLE, EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE, EV_ASYNC_ENABLE, EV_CHILD_ENABLE."
-If undefined or defined to be \f(CW1\fR (and the platform supports it), then
-the respective watcher type is supported. If defined to be \f(CW0\fR, then it
-is not. Disabling watcher types mainly saves code size.
-.IP "\s-1EV_FEATURES\s0" 4
-.IX Item "EV_FEATURES"
-If you need to shave off some kilobytes of code at the expense of some
-speed (but with the full \s-1API\s0), you can define this symbol to request
-certain subsets of functionality. The default is to enable all features
-that can be enabled on the platform.
-.Sp
-A typical way to use this symbol is to define it to \f(CW0\fR (or to a bitset
-with some broad features you want) and then selectively re-enable
-additional parts you want, for example if you want everything minimal,
-but multiple event loop support, async and child watchers and the poll
-backend, use this:
-.Sp
-.Vb 5
-\& #define EV_FEATURES 0
-\& #define EV_MULTIPLICITY 1
-\& #define EV_USE_POLL 1
-\& #define EV_CHILD_ENABLE 1
-\& #define EV_ASYNC_ENABLE 1
-.Ve
-.Sp
-The actual value is a bitset, it can be a combination of the following
-values:
-.RS 4
-.ie n .IP "1 \- faster/larger code" 4
-.el .IP "\f(CW1\fR \- faster/larger code" 4
-.IX Item "1 - faster/larger code"
-Use larger code to speed up some operations.
-.Sp
-Currently this is used to override some inlining decisions (enlarging the
-code size by roughly 30% on amd64).
-.Sp
-When optimising for size, use of compiler flags such as \f(CW\*(C`\-Os\*(C'\fR with
-gcc is recommended, as well as \f(CW\*(C`\-DNDEBUG\*(C'\fR, as libev contains a number of
-assertions.
-.ie n .IP "2 \- faster/larger data structures" 4
-.el .IP "\f(CW2\fR \- faster/larger data structures" 4
-.IX Item "2 - faster/larger data structures"
-Replaces the small 2\-heap for timer management by a faster 4\-heap, larger
-hash table sizes and so on. This will usually further increase code size
-and can additionally have an effect on the size of data structures at
-runtime.
-.ie n .IP "4 \- full \s-1API\s0 configuration" 4
-.el .IP "\f(CW4\fR \- full \s-1API\s0 configuration" 4
-.IX Item "4 - full API configuration"
-This enables priorities (sets \f(CW\*(C`EV_MAXPRI\*(C'\fR=2 and \f(CW\*(C`EV_MINPRI\*(C'\fR=\-2), and
-enables multiplicity (\f(CW\*(C`EV_MULTIPLICITY\*(C'\fR=1).
-.ie n .IP "8 \- full \s-1API\s0" 4
-.el .IP "\f(CW8\fR \- full \s-1API\s0" 4
-.IX Item "8 - full API"
-This enables a lot of the \*(L"lesser used\*(R" \s-1API\s0 functions. See \f(CW\*(C`ev.h\*(C'\fR for
-details on which parts of the \s-1API\s0 are still available without this
-feature, and do not complain if this subset changes over time.
-.ie n .IP "16 \- enable all optional watcher types" 4
-.el .IP "\f(CW16\fR \- enable all optional watcher types" 4
-.IX Item "16 - enable all optional watcher types"
-Enables all optional watcher types. If you want to selectively enable
-only some watcher types other than I/O and timers (e.g. prepare,
-embed, async, child...) you can enable them manually by defining
-\&\f(CW\*(C`EV_watchertype_ENABLE\*(C'\fR to \f(CW1\fR instead.
-.ie n .IP "32 \- enable all backends" 4
-.el .IP "\f(CW32\fR \- enable all backends" 4
-.IX Item "32 - enable all backends"
-This enables all backends \- without this feature, you need to enable at
-least one backend manually (\f(CW\*(C`EV_USE_SELECT\*(C'\fR is a good choice).
-.ie n .IP "64 \- enable OS-specific ""helper"" APIs" 4
-.el .IP "\f(CW64\fR \- enable OS-specific ``helper'' APIs" 4
-.IX Item "64 - enable OS-specific helper APIs"
-Enable inotify, eventfd, signalfd and similar OS-specific helper APIs by
-default.
-.RE
-.RS 4
-.Sp
-Compiling with \f(CW\*(C`gcc \-Os \-DEV_STANDALONE \-DEV_USE_EPOLL=1 \-DEV_FEATURES=0\*(C'\fR
-reduces the compiled size of libev from 24.7Kb code/2.8Kb data to 6.5Kb
-code/0.3Kb data on my GNU/Linux amd64 system, while still giving you I/O
-watchers, timers and monotonic clock support.
-.Sp
-With an intelligent-enough linker (gcc+binutils are intelligent enough
-when you use \f(CW\*(C`\-Wl,\-\-gc\-sections \-ffunction\-sections\*(C'\fR) functions unused by
-your program might be left out as well \- a binary starting a timer and an
-I/O watcher then might come out at only 5Kb.
-.RE
-.IP "\s-1EV_AVOID_STDIO\s0" 4
-.IX Item "EV_AVOID_STDIO"
-If this is set to \f(CW1\fR at compiletime, then libev will avoid using stdio
-functions (printf, scanf, perror etc.). This will increase the code size
-somewhat, but if your program doesn't otherwise depend on stdio and your
-libc allows it, this avoids linking in the stdio library which is quite
-big.
-.Sp
-Note that error messages might become less precise when this option is
-enabled.
-.IP "\s-1EV_NSIG\s0" 4
-.IX Item "EV_NSIG"
-The highest supported signal number, +1 (or, the number of
-signals): Normally, libev tries to deduce the maximum number of signals
-automatically, but sometimes this fails, in which case it can be
-specified. Also, using a lower number than detected (\f(CW32\fR should be
-good for about any system in existence) can save some memory, as libev
-statically allocates some 12\-24 bytes per signal number.
-.IP "\s-1EV_PID_HASHSIZE\s0" 4
-.IX Item "EV_PID_HASHSIZE"
-\&\f(CW\*(C`ev_child\*(C'\fR watchers use a small hash table to distribute workload by
-pid. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_FEATURES\*(C'\fR disabled),
-usually more than enough. If you need to manage thousands of children you
-might want to increase this value (\fImust\fR be a power of two).
-.IP "\s-1EV_INOTIFY_HASHSIZE\s0" 4
-.IX Item "EV_INOTIFY_HASHSIZE"
-\&\f(CW\*(C`ev_stat\*(C'\fR watchers use a small hash table to distribute workload by
-inotify watch id. The default size is \f(CW16\fR (or \f(CW1\fR with \f(CW\*(C`EV_FEATURES\*(C'\fR
-disabled), usually more than enough. If you need to manage thousands of
-\&\f(CW\*(C`ev_stat\*(C'\fR watchers you might want to increase this value (\fImust\fR be a
-power of two).
-.IP "\s-1EV_USE_4HEAP\s0" 4
-.IX Item "EV_USE_4HEAP"
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev uses a 4\-heap when this symbol is defined
-to \f(CW1\fR. The 4\-heap uses more complicated (longer) code but has noticeably
-faster performance with many (thousands) of watchers.
-.Sp
-The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it
-will be \f(CW0\fR.
-.IP "\s-1EV_HEAP_CACHE_AT\s0" 4
-.IX Item "EV_HEAP_CACHE_AT"
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev can cache the timestamp (\fIat\fR) within
-the heap structure (selected by defining \f(CW\*(C`EV_HEAP_CACHE_AT\*(C'\fR to \f(CW1\fR),
-which uses 8\-12 bytes more per watcher and a few hundred bytes more code,
-but avoids random read accesses on heap changes. This improves performance
-noticeably with many (hundreds) of watchers.
-.Sp
-The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it
-will be \f(CW0\fR.
-.IP "\s-1EV_VERIFY\s0" 4
-.IX Item "EV_VERIFY"
-Controls how much internal verification (see \f(CW\*(C`ev_verify ()\*(C'\fR) will
-be done: If set to \f(CW0\fR, no internal verification code will be compiled
-in. If set to \f(CW1\fR, then verification code will be compiled in, but not
-called. If set to \f(CW2\fR, then the internal verification code will be
-called once per loop, which can slow down libev. If set to \f(CW3\fR, then the
-verification code will be called very frequently, which will slow down
-libev considerably.
-.Sp
-The default is \f(CW1\fR, unless \f(CW\*(C`EV_FEATURES\*(C'\fR overrides it, in which case it
-will be \f(CW0\fR.
-.IP "\s-1EV_COMMON\s0" 4
-.IX Item "EV_COMMON"
-By default, all watchers have a \f(CW\*(C`void *data\*(C'\fR member. By redefining
-this macro to something else you can include more and other types of
-members. You have to define it each time you include one of the files,
-though, and it must be identical each time.
-.Sp
-For example, the perl \s-1EV\s0 module uses something like this:
-.Sp
-.Vb 3
-\& #define EV_COMMON \e
-\& SV *self; /* contains this struct */ \e
-\& SV *cb_sv, *fh /* note no trailing ";" */
-.Ve
-.IP "\s-1EV_CB_DECLARE\s0 (type)" 4
-.IX Item "EV_CB_DECLARE (type)"
-.PD 0
-.IP "\s-1EV_CB_INVOKE\s0 (watcher, revents)" 4
-.IX Item "EV_CB_INVOKE (watcher, revents)"
-.IP "ev_set_cb (ev, cb)" 4
-.IX Item "ev_set_cb (ev, cb)"
-.PD
-Can be used to change the callback member declaration in each watcher,
-and the way callbacks are invoked and set. Must expand to a struct member
-definition and a statement, respectively. See the \fIev.h\fR header file for
-their default definitions. One possible use for overriding these is to
-avoid the \f(CW\*(C`struct ev_loop *\*(C'\fR as first argument in all cases, or to use
-method calls instead of plain function calls in \*(C+.
-.SS "\s-1EXPORTED\s0 \s-1API\s0 \s-1SYMBOLS\s0"
-.IX Subsection "EXPORTED API SYMBOLS"
-If you need to re-export the \s-1API\s0 (e.g. via a \s-1DLL\s0) and you need a list of
-exported symbols, you can use the provided \fISymbol.*\fR files which list
-all public symbols, one per line:
-.PP
-.Vb 2
-\& Symbols.ev for libev proper
-\& Symbols.event for the libevent emulation
-.Ve
-.PP
-This can also be used to rename all public symbols to avoid clashes with
-multiple versions of libev linked together (which is obviously bad in
-itself, but sometimes it is inconvenient to avoid this).
-.PP
-A sed command like this will create wrapper \f(CW\*(C`#define\*(C'\fR's that you need to
-include before including \fIev.h\fR:
-.PP
-.Vb 1
-\& <Symbols.ev sed \-e "s/.*/#define & myprefix_&/" >wrap.h
-.Ve
-.PP
-This would create a file \fIwrap.h\fR which essentially looks like this:
-.PP
-.Vb 4
-\& #define ev_backend myprefix_ev_backend
-\& #define ev_check_start myprefix_ev_check_start
-\& #define ev_check_stop myprefix_ev_check_stop
-\& ...
-.Ve
-.SS "\s-1EXAMPLES\s0"
-.IX Subsection "EXAMPLES"
-For a real-world example of a program the includes libev
-verbatim, you can have a look at the \s-1EV\s0 perl module
-(<http://software.schmorp.de/pkg/EV.html>). It has the libev files in
-the \fIlibev/\fR subdirectory and includes them in the \fI\s-1EV/EVAPI\s0.h\fR (public
-interface) and \fI\s-1EV\s0.xs\fR (implementation) files. Only the \fI\s-1EV\s0.xs\fR file
-will be compiled. It is pretty complex because it provides its own header
-file.
-.PP
-The usage in rxvt-unicode is simpler. It has a \fIev_cpp.h\fR header file
-that everybody includes and which overrides some configure choices:
-.PP
-.Vb 8
-\& #define EV_FEATURES 8
-\& #define EV_USE_SELECT 1
-\& #define EV_PREPARE_ENABLE 1
-\& #define EV_IDLE_ENABLE 1
-\& #define EV_SIGNAL_ENABLE 1
-\& #define EV_CHILD_ENABLE 1
-\& #define EV_USE_STDEXCEPT 0
-\& #define EV_CONFIG_H <config.h>
-\&
-\& #include "ev++.h"
-.Ve
-.PP
-And a \fIev_cpp.C\fR implementation file that contains libev proper and is compiled:
-.PP
-.Vb 2
-\& #include "ev_cpp.h"
-\& #include "ev.c"
-.Ve
-.SH "INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT"
-.IX Header "INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT"
-.SS "\s-1THREADS\s0 \s-1AND\s0 \s-1COROUTINES\s0"
-.IX Subsection "THREADS AND COROUTINES"
-\fI\s-1THREADS\s0\fR
-.IX Subsection "THREADS"
-.PP
-All libev functions are reentrant and thread-safe unless explicitly
-documented otherwise, but libev implements no locking itself. This means
-that you can use as many loops as you want in parallel, as long as there
-are no concurrent calls into any libev function with the same loop
-parameter (\f(CW\*(C`ev_default_*\*(C'\fR calls have an implicit default loop parameter,
-of course): libev guarantees that different event loops share no data
-structures that need any locking.
-.PP
-Or to put it differently: calls with different loop parameters can be done
-concurrently from multiple threads, calls with the same loop parameter
-must be done serially (but can be done from different threads, as long as
-only one thread ever is inside a call at any point in time, e.g. by using
-a mutex per loop).
-.PP
-Specifically to support threads (and signal handlers), libev implements
-so-called \f(CW\*(C`ev_async\*(C'\fR watchers, which allow some limited form of
-concurrency on the same event loop, namely waking it up \*(L"from the
-outside\*(R".
-.PP
-If you want to know which design (one loop, locking, or multiple loops
-without or something else still) is best for your problem, then I cannot
-help you, but here is some generic advice:
-.IP "\(bu" 4
-most applications have a main thread: use the default libev loop
-in that thread, or create a separate thread running only the default loop.
-.Sp
-This helps integrating other libraries or software modules that use libev
-themselves and don't care/know about threading.
-.IP "\(bu" 4
-one loop per thread is usually a good model.
-.Sp
-Doing this is almost never wrong, sometimes a better-performance model
-exists, but it is always a good start.
-.IP "\(bu" 4
-other models exist, such as the leader/follower pattern, where one
-loop is handed through multiple threads in a kind of round-robin fashion.
-.Sp
-Choosing a model is hard \- look around, learn, know that usually you can do
-better than you currently do :\-)
-.IP "\(bu" 4
-often you need to talk to some other thread which blocks in the
-event loop.
-.Sp
-\&\f(CW\*(C`ev_async\*(C'\fR watchers can be used to wake them up from other threads safely
-(or from signal contexts...).
-.Sp
-An example use would be to communicate signals or other events that only
-work in the default loop by registering the signal watcher with the
-default loop and triggering an \f(CW\*(C`ev_async\*(C'\fR watcher from the default loop
-watcher callback into the event loop interested in the signal.
-.PP
-See also \*(L"\s-1THREAD\s0 \s-1LOCKING\s0 \s-1EXAMPLE\s0\*(R".
-.PP
-\fI\s-1COROUTINES\s0\fR
-.IX Subsection "COROUTINES"
-.PP
-Libev is very accommodating to coroutines (\*(L"cooperative threads\*(R"):
-libev fully supports nesting calls to its functions from different
-coroutines (e.g. you can call \f(CW\*(C`ev_run\*(C'\fR on the same loop from two
-different coroutines, and switch freely between both coroutines running
-the loop, as long as you don't confuse yourself). The only exception is
-that you must not do this from \f(CW\*(C`ev_periodic\*(C'\fR reschedule callbacks.
-.PP
-Care has been taken to ensure that libev does not keep local state inside
-\&\f(CW\*(C`ev_run\*(C'\fR, and other calls do not usually allow for coroutine switches as
-they do not call any callbacks.
-.SS "\s-1COMPILER\s0 \s-1WARNINGS\s0"
-.IX Subsection "COMPILER WARNINGS"
-Depending on your compiler and compiler settings, you might get no or a
-lot of warnings when compiling libev code. Some people are apparently
-scared by this.
-.PP
-However, these are unavoidable for many reasons. For one, each compiler
-has different warnings, and each user has different tastes regarding
-warning options. \*(L"Warn-free\*(R" code therefore cannot be a goal except when
-targeting a specific compiler and compiler-version.
-.PP
-Another reason is that some compiler warnings require elaborate
-workarounds, or other changes to the code that make it less clear and less
-maintainable.
-.PP
-And of course, some compiler warnings are just plain stupid, or simply
-wrong (because they don't actually warn about the condition their message
-seems to warn about). For example, certain older gcc versions had some
-warnings that resulted in an extreme number of false positives. These have
-been fixed, but some people still insist on making code warn-free with
-such buggy versions.
-.PP
-While libev is written to generate as few warnings as possible,
-\&\*(L"warn-free\*(R" code is not a goal, and it is recommended not to build libev
-with any compiler warnings enabled unless you are prepared to cope with
-them (e.g. by ignoring them). Remember that warnings are just that:
-warnings, not errors, or proof of bugs.
-.SS "\s-1VALGRIND\s0"
-.IX Subsection "VALGRIND"
-Valgrind has a special section here because it is a popular tool that is
-highly useful. Unfortunately, valgrind reports are very hard to interpret.
-.PP
-If you think you found a bug (memory leak, uninitialised data access etc.)
-in libev, then check twice: If valgrind reports something like:
-.PP
-.Vb 3
-\& ==2274== definitely lost: 0 bytes in 0 blocks.
-\& ==2274== possibly lost: 0 bytes in 0 blocks.
-\& ==2274== still reachable: 256 bytes in 1 blocks.
-.Ve
-.PP
-Then there is no memory leak, just as memory accounted to global variables
-is not a memleak \- the memory is still being referenced, and didn't leak.
-.PP
-Similarly, under some circumstances, valgrind might report kernel bugs
-as if it were a bug in libev (e.g. in realloc or in the poll backend,
-although an acceptable workaround has been found here), or it might be
-confused.
-.PP
-Keep in mind that valgrind is a very good tool, but only a tool. Don't
-make it into some kind of religion.
-.PP
-If you are unsure about something, feel free to contact the mailing list
-with the full valgrind report and an explanation on why you think this
-is a bug in libev (best check the archives, too :). However, don't be
-annoyed when you get a brisk \*(L"this is no bug\*(R" answer and take the chance
-of learning how to interpret valgrind properly.
-.PP
-If you need, for some reason, empty reports from valgrind for your project
-I suggest using suppression lists.
-.SH "PORTABILITY NOTES"
-.IX Header "PORTABILITY NOTES"
-.SS "\s-1GNU/LINUX\s0 32 \s-1BIT\s0 \s-1LIMITATIONS\s0"
-.IX Subsection "GNU/LINUX 32 BIT LIMITATIONS"
-GNU/Linux is the only common platform that supports 64 bit file/large file
-interfaces but \fIdisables\fR them by default.
-.PP
-That means that libev compiled in the default environment doesn't support
-files larger than 2GiB or so, which mainly affects \f(CW\*(C`ev_stat\*(C'\fR watchers.
-.PP
-Unfortunately, many programs try to work around this GNU/Linux issue
-by enabling the large file \s-1API\s0, which makes them incompatible with the
-standard libev compiled for their system.
-.PP
-Likewise, libev cannot enable the large file \s-1API\s0 itself as this would
-suddenly make it incompatible to the default compile time environment,
-i.e. all programs not using special compile switches.
-.SS "\s-1OS/X\s0 \s-1AND\s0 \s-1DARWIN\s0 \s-1BUGS\s0"
-.IX Subsection "OS/X AND DARWIN BUGS"
-The whole thing is a bug if you ask me \- basically any system interface
-you touch is broken, whether it is locales, poll, kqueue or even the
-OpenGL drivers.
-.PP
-\fI\f(CI\*(C`kqueue\*(C'\fI is buggy\fR
-.IX Subsection "kqueue is buggy"
-.PP
-The kqueue syscall is broken in all known versions \- most versions support
-only sockets, many support pipes.
-.PP
-Libev tries to work around this by not using \f(CW\*(C`kqueue\*(C'\fR by default on this
-rotten platform, but of course you can still ask for it when creating a
-loop \- embedding a socket-only kqueue loop into a select-based one is
-probably going to work well.
-.PP
-\fI\f(CI\*(C`poll\*(C'\fI is buggy\fR
-.IX Subsection "poll is buggy"
-.PP
-Instead of fixing \f(CW\*(C`kqueue\*(C'\fR, Apple replaced their (working) \f(CW\*(C`poll\*(C'\fR
-implementation by something calling \f(CW\*(C`kqueue\*(C'\fR internally around the 10.5.6
-release, so now \f(CW\*(C`kqueue\*(C'\fR \fIand\fR \f(CW\*(C`poll\*(C'\fR are broken.
-.PP
-Libev tries to work around this by not using \f(CW\*(C`poll\*(C'\fR by default on
-this rotten platform, but of course you can still ask for it when creating
-a loop.
-.PP
-\fI\f(CI\*(C`select\*(C'\fI is buggy\fR
-.IX Subsection "select is buggy"
-.PP
-All that's left is \f(CW\*(C`select\*(C'\fR, and of course Apple found a way to fuck this
-one up as well: On \s-1OS/X\s0, \f(CW\*(C`select\*(C'\fR actively limits the number of file
-descriptors you can pass in to 1024 \- your program suddenly crashes when
-you use more.
-.PP
-There is an undocumented \*(L"workaround\*(R" for this \- defining
-\&\f(CW\*(C`_DARWIN_UNLIMITED_SELECT\*(C'\fR, which libev tries to use, so select \fIshould\fR
-work on \s-1OS/X\s0.
-.SS "\s-1SOLARIS\s0 \s-1PROBLEMS\s0 \s-1AND\s0 \s-1WORKAROUNDS\s0"
-.IX Subsection "SOLARIS PROBLEMS AND WORKAROUNDS"
-\fI\f(CI\*(C`errno\*(C'\fI reentrancy\fR
-.IX Subsection "errno reentrancy"
-.PP
-The default compile environment on Solaris is unfortunately so
-thread-unsafe that you can't even use components/libraries compiled
-without \f(CW\*(C`\-D_REENTRANT\*(C'\fR in a threaded program, which, of course, isn't
-defined by default. A valid, if stupid, implementation choice.
-.PP
-If you want to use libev in threaded environments you have to make sure
-it's compiled with \f(CW\*(C`_REENTRANT\*(C'\fR defined.
-.PP
-\fIEvent port backend\fR
-.IX Subsection "Event port backend"
-.PP
-The scalable event interface for Solaris is called \*(L"event
-ports\*(R". Unfortunately, this mechanism is very buggy in all major
-releases. If you run into high \s-1CPU\s0 usage, your program freezes or you get
-a large number of spurious wakeups, make sure you have all the relevant
-and latest kernel patches applied. No, I don't know which ones, but there
-are multiple ones to apply, and afterwards, event ports actually work
-great.
-.PP
-If you can't get it to work, you can try running the program by setting
-the environment variable \f(CW\*(C`LIBEV_FLAGS=3\*(C'\fR to only allow \f(CW\*(C`poll\*(C'\fR and
-\&\f(CW\*(C`select\*(C'\fR backends.
-.SS "\s-1AIX\s0 \s-1POLL\s0 \s-1BUG\s0"
-.IX Subsection "AIX POLL BUG"
-\&\s-1AIX\s0 unfortunately has a broken \f(CW\*(C`poll.h\*(C'\fR header. Libev works around
-this by trying to avoid the poll backend altogether (i.e. it's not even
-compiled in), which normally isn't a big problem as \f(CW\*(C`select\*(C'\fR works fine
-with large bitsets on \s-1AIX\s0, and \s-1AIX\s0 is dead anyway.
-.SS "\s-1WIN32\s0 \s-1PLATFORM\s0 \s-1LIMITATIONS\s0 \s-1AND\s0 \s-1WORKAROUNDS\s0"
-.IX Subsection "WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS"
-\fIGeneral issues\fR
-.IX Subsection "General issues"
-.PP
-Win32 doesn't support any of the standards (e.g. \s-1POSIX\s0) that libev
-requires, and its I/O model is fundamentally incompatible with the \s-1POSIX\s0
-model. Libev still offers limited functionality on this platform in
-the form of the \f(CW\*(C`EVBACKEND_SELECT\*(C'\fR backend, and only supports socket
-descriptors. This only applies when using Win32 natively, not when using
-e.g. cygwin. Actually, it only applies to the microsofts own compilers,
-as every compielr comes with a slightly differently broken/incompatible
-environment.
-.PP
-Lifting these limitations would basically require the full
-re-implementation of the I/O system. If you are into this kind of thing,
-then note that glib does exactly that for you in a very portable way (note
-also that glib is the slowest event library known to man).
-.PP
-There is no supported compilation method available on windows except
-embedding it into other applications.
-.PP
-Sensible signal handling is officially unsupported by Microsoft \- libev
-tries its best, but under most conditions, signals will simply not work.
-.PP
-Not a libev limitation but worth mentioning: windows apparently doesn't
-accept large writes: instead of resulting in a partial write, windows will
-either accept everything or return \f(CW\*(C`ENOBUFS\*(C'\fR if the buffer is too large,
-so make sure you only write small amounts into your sockets (less than a
-megabyte seems safe, but this apparently depends on the amount of memory
-available).
-.PP
-Due to the many, low, and arbitrary limits on the win32 platform and
-the abysmal performance of winsockets, using a large number of sockets
-is not recommended (and not reasonable). If your program needs to use
-more than a hundred or so sockets, then likely it needs to use a totally
-different implementation for windows, as libev offers the \s-1POSIX\s0 readiness
-notification model, which cannot be implemented efficiently on windows
-(due to Microsoft monopoly games).
-.PP
-A typical way to use libev under windows is to embed it (see the embedding
-section for details) and use the following \fIevwrap.h\fR header file instead
-of \fIev.h\fR:
-.PP
-.Vb 2
-\& #define EV_STANDALONE /* keeps ev from requiring config.h */
-\& #define EV_SELECT_IS_WINSOCKET 1 /* configure libev for windows select */
-\&
-\& #include "ev.h"
-.Ve
-.PP
-And compile the following \fIevwrap.c\fR file into your project (make sure
-you do \fInot\fR compile the \fIev.c\fR or any other embedded source files!):
-.PP
-.Vb 2
-\& #include "evwrap.h"
-\& #include "ev.c"
-.Ve
-.PP
-\fIThe winsocket \f(CI\*(C`select\*(C'\fI function\fR
-.IX Subsection "The winsocket select function"
-.PP
-The winsocket \f(CW\*(C`select\*(C'\fR function doesn't follow \s-1POSIX\s0 in that it
-requires socket \fIhandles\fR and not socket \fIfile descriptors\fR (it is
-also extremely buggy). This makes select very inefficient, and also
-requires a mapping from file descriptors to socket handles (the Microsoft
-C runtime provides the function \f(CW\*(C`_open_osfhandle\*(C'\fR for this). See the
-discussion of the \f(CW\*(C`EV_SELECT_USE_FD_SET\*(C'\fR, \f(CW\*(C`EV_SELECT_IS_WINSOCKET\*(C'\fR and
-\&\f(CW\*(C`EV_FD_TO_WIN32_HANDLE\*(C'\fR preprocessor symbols for more info.
-.PP
-The configuration for a \*(L"naked\*(R" win32 using the Microsoft runtime
-libraries and raw winsocket select is:
-.PP
-.Vb 2
-\& #define EV_USE_SELECT 1
-\& #define EV_SELECT_IS_WINSOCKET 1 /* forces EV_SELECT_USE_FD_SET, too */
-.Ve
-.PP
-Note that winsockets handling of fd sets is O(n), so you can easily get a
-complexity in the O(nA\*^X) range when using win32.
-.PP
-\fILimited number of file descriptors\fR
-.IX Subsection "Limited number of file descriptors"
-.PP
-Windows has numerous arbitrary (and low) limits on things.
-.PP
-Early versions of winsocket's select only supported waiting for a maximum
-of \f(CW64\fR handles (probably owning to the fact that all windows kernels
-can only wait for \f(CW64\fR things at the same time internally; Microsoft
-recommends spawning a chain of threads and wait for 63 handles and the
-previous thread in each. Sounds great!).
-.PP
-Newer versions support more handles, but you need to define \f(CW\*(C`FD_SETSIZE\*(C'\fR
-to some high number (e.g. \f(CW2048\fR) before compiling the winsocket select
-call (which might be in libev or elsewhere, for example, perl and many
-other interpreters do their own select emulation on windows).
-.PP
-Another limit is the number of file descriptors in the Microsoft runtime
-libraries, which by default is \f(CW64\fR (there must be a hidden \fI64\fR
-fetish or something like this inside Microsoft). You can increase this
-by calling \f(CW\*(C`_setmaxstdio\*(C'\fR, which can increase this limit to \f(CW2048\fR
-(another arbitrary limit), but is broken in many versions of the Microsoft
-runtime libraries. This might get you to about \f(CW512\fR or \f(CW2048\fR sockets
-(depending on windows version and/or the phase of the moon). To get more,
-you need to wrap all I/O functions and provide your own fd management, but
-the cost of calling select (O(nA\*^X)) will likely make this unworkable.
-.SS "\s-1PORTABILITY\s0 \s-1REQUIREMENTS\s0"
-.IX Subsection "PORTABILITY REQUIREMENTS"
-In addition to a working ISO-C implementation and of course the
-backend-specific APIs, libev relies on a few additional extensions:
-.ie n .IP """void (*)(ev_watcher_type *, int revents)"" must have compatible calling conventions regardless of ""ev_watcher_type *""." 4
-.el .IP "\f(CWvoid (*)(ev_watcher_type *, int revents)\fR must have compatible calling conventions regardless of \f(CWev_watcher_type *\fR." 4
-.IX Item "void (*)(ev_watcher_type *, int revents) must have compatible calling conventions regardless of ev_watcher_type *."
-Libev assumes not only that all watcher pointers have the same internal
-structure (guaranteed by \s-1POSIX\s0 but not by \s-1ISO\s0 C for example), but it also
-assumes that the same (machine) code can be used to call any watcher
-callback: The watcher callbacks have different type signatures, but libev
-calls them using an \f(CW\*(C`ev_watcher *\*(C'\fR internally.
-.IP "pointer accesses must be thread-atomic" 4
-.IX Item "pointer accesses must be thread-atomic"
-Accessing a pointer value must be atomic, it must both be readable and
-writable in one piece \- this is the case on all current architectures.
-.ie n .IP """sig_atomic_t volatile"" must be thread-atomic as well" 4
-.el .IP "\f(CWsig_atomic_t volatile\fR must be thread-atomic as well" 4
-.IX Item "sig_atomic_t volatile must be thread-atomic as well"
-The type \f(CW\*(C`sig_atomic_t volatile\*(C'\fR (or whatever is defined as
-\&\f(CW\*(C`EV_ATOMIC_T\*(C'\fR) must be atomic with respect to accesses from different
-threads. This is not part of the specification for \f(CW\*(C`sig_atomic_t\*(C'\fR, but is
-believed to be sufficiently portable.
-.ie n .IP """sigprocmask"" must work in a threaded environment" 4
-.el .IP "\f(CWsigprocmask\fR must work in a threaded environment" 4
-.IX Item "sigprocmask must work in a threaded environment"
-Libev uses \f(CW\*(C`sigprocmask\*(C'\fR to temporarily block signals. This is not
-allowed in a threaded program (\f(CW\*(C`pthread_sigmask\*(C'\fR has to be used). Typical
-pthread implementations will either allow \f(CW\*(C`sigprocmask\*(C'\fR in the \*(L"main
-thread\*(R" or will block signals process-wide, both behaviours would
-be compatible with libev. Interaction between \f(CW\*(C`sigprocmask\*(C'\fR and
-\&\f(CW\*(C`pthread_sigmask\*(C'\fR could complicate things, however.
-.Sp
-The most portable way to handle signals is to block signals in all threads
-except the initial one, and run the default loop in the initial thread as
-well.
-.ie n .IP """long"" must be large enough for common memory allocation sizes" 4
-.el .IP "\f(CWlong\fR must be large enough for common memory allocation sizes" 4
-.IX Item "long must be large enough for common memory allocation sizes"
-To improve portability and simplify its \s-1API\s0, libev uses \f(CW\*(C`long\*(C'\fR internally
-instead of \f(CW\*(C`size_t\*(C'\fR when allocating its data structures. On non-POSIX
-systems (Microsoft...) this might be unexpectedly low, but is still at
-least 31 bits everywhere, which is enough for hundreds of millions of
-watchers.
-.ie n .IP """double"" must hold a time value in seconds with enough accuracy" 4
-.el .IP "\f(CWdouble\fR must hold a time value in seconds with enough accuracy" 4
-.IX Item "double must hold a time value in seconds with enough accuracy"
-The type \f(CW\*(C`double\*(C'\fR is used to represent timestamps. It is required to
-have at least 51 bits of mantissa (and 9 bits of exponent), which is
-good enough for at least into the year 4000 with millisecond accuracy
-(the design goal for libev). This requirement is overfulfilled by
-implementations using \s-1IEEE\s0 754, which is basically all existing ones. With
-\&\s-1IEEE\s0 754 doubles, you get microsecond accuracy until at least 2200.
-.PP
-If you know of other additional requirements drop me a note.
-.SH "ALGORITHMIC COMPLEXITIES"
-.IX Header "ALGORITHMIC COMPLEXITIES"
-In this section the complexities of (many of) the algorithms used inside
-libev will be documented. For complexity discussions about backends see
-the documentation for \f(CW\*(C`ev_default_init\*(C'\fR.
-.PP
-All of the following are about amortised time: If an array needs to be
-extended, libev needs to realloc and move the whole array, but this
-happens asymptotically rarer with higher number of elements, so O(1) might
-mean that libev does a lengthy realloc operation in rare cases, but on
-average it is much faster and asymptotically approaches constant time.
-.IP "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)" 4
-.IX Item "Starting and stopping timer/periodic watchers: O(log skipped_other_timers)"
-This means that, when you have a watcher that triggers in one hour and
-there are 100 watchers that would trigger before that, then inserting will
-have to skip roughly seven (\f(CW\*(C`ld 100\*(C'\fR) of these watchers.
-.IP "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)" 4
-.IX Item "Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)"
-That means that changing a timer costs less than removing/adding them,
-as only the relative motion in the event queue has to be paid for.
-.IP "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)" 4
-.IX Item "Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)"
-These just add the watcher into an array or at the head of a list.
-.IP "Stopping check/prepare/idle/fork/async watchers: O(1)" 4
-.IX Item "Stopping check/prepare/idle/fork/async watchers: O(1)"
-.PD 0
-.IP "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % \s-1EV_PID_HASHSIZE\s0))" 4
-.IX Item "Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % EV_PID_HASHSIZE))"
-.PD
-These watchers are stored in lists, so they need to be walked to find the
-correct watcher to remove. The lists are usually short (you don't usually
-have many watchers waiting for the same fd or signal: one is typical, two
-is rare).
-.IP "Finding the next timer in each loop iteration: O(1)" 4
-.IX Item "Finding the next timer in each loop iteration: O(1)"
-By virtue of using a binary or 4\-heap, the next timer is always found at a
-fixed position in the storage array.
-.IP "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)" 4
-.IX Item "Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)"
-A change means an I/O watcher gets started or stopped, which requires
-libev to recalculate its status (and possibly tell the kernel, depending
-on backend and whether \f(CW\*(C`ev_io_set\*(C'\fR was used).
-.IP "Activating one watcher (putting it into the pending state): O(1)" 4
-.IX Item "Activating one watcher (putting it into the pending state): O(1)"
-.PD 0
-.IP "Priority handling: O(number_of_priorities)" 4
-.IX Item "Priority handling: O(number_of_priorities)"
-.PD
-Priorities are implemented by allocating some space for each
-priority. When doing priority-based operations, libev usually has to
-linearly search all the priorities, but starting/stopping and activating
-watchers becomes O(1) with respect to priority handling.
-.IP "Sending an ev_async: O(1)" 4
-.IX Item "Sending an ev_async: O(1)"
-.PD 0
-.IP "Processing ev_async_send: O(number_of_async_watchers)" 4
-.IX Item "Processing ev_async_send: O(number_of_async_watchers)"
-.IP "Processing signals: O(max_signal_number)" 4
-.IX Item "Processing signals: O(max_signal_number)"
-.PD
-Sending involves a system call \fIiff\fR there were no other \f(CW\*(C`ev_async_send\*(C'\fR
-calls in the current loop iteration. Checking for async and signal events
-involves iterating over all running async watchers or all signal numbers.
-.SH "PORTING FROM LIBEV 3.X TO 4.X"
-.IX Header "PORTING FROM LIBEV 3.X TO 4.X"
-The major version 4 introduced some incompatible changes to the \s-1API\s0.
-.PP
-At the moment, the \f(CW\*(C`ev.h\*(C'\fR header file provides compatibility definitions
-for all changes, so most programs should still compile. The compatibility
-layer might be removed in later versions of libev, so better update to the
-new \s-1API\s0 early than late.
-.ie n .IP """EV_COMPAT3"" backwards compatibility mechanism" 4
-.el .IP "\f(CWEV_COMPAT3\fR backwards compatibility mechanism" 4
-.IX Item "EV_COMPAT3 backwards compatibility mechanism"
-The backward compatibility mechanism can be controlled by
-\&\f(CW\*(C`EV_COMPAT3\*(C'\fR. See \*(L"\s-1MACROS\s0\*(R" in \s-1PREPROCESSOR\s0 \s-1SYMBOLS\s0 in the \s-1EMBEDDING\s0
-section.
-.ie n .IP """ev_default_destroy"" and ""ev_default_fork"" have been removed" 4
-.el .IP "\f(CWev_default_destroy\fR and \f(CWev_default_fork\fR have been removed" 4
-.IX Item "ev_default_destroy and ev_default_fork have been removed"
-These calls can be replaced easily by their \f(CW\*(C`ev_loop_xxx\*(C'\fR counterparts:
-.Sp
-.Vb 2
-\& ev_loop_destroy (EV_DEFAULT_UC);
-\& ev_loop_fork (EV_DEFAULT);
-.Ve
-.IP "function/symbol renames" 4
-.IX Item "function/symbol renames"
-A number of functions and symbols have been renamed:
-.Sp
-.Vb 3
-\& ev_loop => ev_run
-\& EVLOOP_NONBLOCK => EVRUN_NOWAIT
-\& EVLOOP_ONESHOT => EVRUN_ONCE
-\&
-\& ev_unloop => ev_break
-\& EVUNLOOP_CANCEL => EVBREAK_CANCEL
-\& EVUNLOOP_ONE => EVBREAK_ONE
-\& EVUNLOOP_ALL => EVBREAK_ALL
-\&
-\& EV_TIMEOUT => EV_TIMER
-\&
-\& ev_loop_count => ev_iteration
-\& ev_loop_depth => ev_depth
-\& ev_loop_verify => ev_verify
-.Ve
-.Sp
-Most functions working on \f(CW\*(C`struct ev_loop\*(C'\fR objects don't have an
-\&\f(CW\*(C`ev_loop_\*(C'\fR prefix, so it was removed; \f(CW\*(C`ev_loop\*(C'\fR, \f(CW\*(C`ev_unloop\*(C'\fR and
-associated constants have been renamed to not collide with the \f(CW\*(C`struct
-ev_loop\*(C'\fR anymore and \f(CW\*(C`EV_TIMER\*(C'\fR now follows the same naming scheme
-as all other watcher types. Note that \f(CW\*(C`ev_loop_fork\*(C'\fR is still called
-\&\f(CW\*(C`ev_loop_fork\*(C'\fR because it would otherwise clash with the \f(CW\*(C`ev_fork\*(C'\fR
-typedef.
-.ie n .IP """EV_MINIMAL"" mechanism replaced by ""EV_FEATURES""" 4
-.el .IP "\f(CWEV_MINIMAL\fR mechanism replaced by \f(CWEV_FEATURES\fR" 4
-.IX Item "EV_MINIMAL mechanism replaced by EV_FEATURES"
-The preprocessor symbol \f(CW\*(C`EV_MINIMAL\*(C'\fR has been replaced by a different
-mechanism, \f(CW\*(C`EV_FEATURES\*(C'\fR. Programs using \f(CW\*(C`EV_MINIMAL\*(C'\fR usually compile
-and work, but the library code will of course be larger.
-.SH "GLOSSARY"
-.IX Header "GLOSSARY"
-.IP "active" 4
-.IX Item "active"
-A watcher is active as long as it has been started and not yet stopped.
-See \*(L"\s-1WATCHER\s0 \s-1STATES\s0\*(R" for details.
-.IP "application" 4
-.IX Item "application"
-In this document, an application is whatever is using libev.
-.IP "backend" 4
-.IX Item "backend"
-The part of the code dealing with the operating system interfaces.
-.IP "callback" 4
-.IX Item "callback"
-The address of a function that is called when some event has been
-detected. Callbacks are being passed the event loop, the watcher that
-received the event, and the actual event bitset.
-.IP "callback/watcher invocation" 4
-.IX Item "callback/watcher invocation"
-The act of calling the callback associated with a watcher.
-.IP "event" 4
-.IX Item "event"
-A change of state of some external event, such as data now being available
-for reading on a file descriptor, time having passed or simply not having
-any other events happening anymore.
-.Sp
-In libev, events are represented as single bits (such as \f(CW\*(C`EV_READ\*(C'\fR or
-\&\f(CW\*(C`EV_TIMER\*(C'\fR).
-.IP "event library" 4
-.IX Item "event library"
-A software package implementing an event model and loop.
-.IP "event loop" 4
-.IX Item "event loop"
-An entity that handles and processes external events and converts them
-into callback invocations.
-.IP "event model" 4
-.IX Item "event model"
-The model used to describe how an event loop handles and processes
-watchers and events.
-.IP "pending" 4
-.IX Item "pending"
-A watcher is pending as soon as the corresponding event has been
-detected. See \*(L"\s-1WATCHER\s0 \s-1STATES\s0\*(R" for details.
-.IP "real time" 4
-.IX Item "real time"
-The physical time that is observed. It is apparently strictly monotonic :)
-.IP "wall-clock time" 4
-.IX Item "wall-clock time"
-The time and date as shown on clocks. Unlike real time, it can actually
-be wrong and jump forwards and backwards, e.g. when you adjust your
-clock.
-.IP "watcher" 4
-.IX Item "watcher"
-A data structure that describes interest in certain events. Watchers need
-to be started (attached to an event loop) before they can receive events.
-.SH "AUTHOR"
-.IX Header "AUTHOR"
-Marc Lehmann <libev@schmorp.de>, with repeated corrections by Mikael
-Magnusson and Emanuele Giaquinta, and minor corrections by many others.
+++ /dev/null
-/*
- * libev event processing core, watcher management
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-/* this big block deduces configuration from config.h */
-#ifndef EV_STANDALONE
-# ifdef EV_CONFIG_H
-# include EV_CONFIG_H
-# else
-# include "config.h"
-# endif
-
-# if HAVE_CLOCK_SYSCALL
-# ifndef EV_USE_CLOCK_SYSCALL
-# define EV_USE_CLOCK_SYSCALL 1
-# ifndef EV_USE_REALTIME
-# define EV_USE_REALTIME 0
-# endif
-# ifndef EV_USE_MONOTONIC
-# define EV_USE_MONOTONIC 1
-# endif
-# endif
-# elif !defined(EV_USE_CLOCK_SYSCALL)
-# define EV_USE_CLOCK_SYSCALL 0
-# endif
-
-# if HAVE_CLOCK_GETTIME
-# ifndef EV_USE_MONOTONIC
-# define EV_USE_MONOTONIC 1
-# endif
-# ifndef EV_USE_REALTIME
-# define EV_USE_REALTIME 0
-# endif
-# else
-# ifndef EV_USE_MONOTONIC
-# define EV_USE_MONOTONIC 0
-# endif
-# ifndef EV_USE_REALTIME
-# define EV_USE_REALTIME 0
-# endif
-# endif
-
-# if HAVE_NANOSLEEP
-# ifndef EV_USE_NANOSLEEP
-# define EV_USE_NANOSLEEP EV_FEATURE_OS
-# endif
-# else
-# undef EV_USE_NANOSLEEP
-# define EV_USE_NANOSLEEP 0
-# endif
-
-# if HAVE_SELECT && HAVE_SYS_SELECT_H
-# ifndef EV_USE_SELECT
-# define EV_USE_SELECT EV_FEATURE_BACKENDS
-# endif
-# else
-# undef EV_USE_SELECT
-# define EV_USE_SELECT 0
-# endif
-
-# if HAVE_POLL && HAVE_POLL_H
-# ifndef EV_USE_POLL
-# define EV_USE_POLL EV_FEATURE_BACKENDS
-# endif
-# else
-# undef EV_USE_POLL
-# define EV_USE_POLL 0
-# endif
-
-# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
-# ifndef EV_USE_EPOLL
-# define EV_USE_EPOLL EV_FEATURE_BACKENDS
-# endif
-# else
-# undef EV_USE_EPOLL
-# define EV_USE_EPOLL 0
-# endif
-
-# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
-# ifndef EV_USE_KQUEUE
-# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
-# endif
-# else
-# undef EV_USE_KQUEUE
-# define EV_USE_KQUEUE 0
-# endif
-
-# if HAVE_PORT_H && HAVE_PORT_CREATE
-# ifndef EV_USE_PORT
-# define EV_USE_PORT EV_FEATURE_BACKENDS
-# endif
-# else
-# undef EV_USE_PORT
-# define EV_USE_PORT 0
-# endif
-
-# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
-# ifndef EV_USE_INOTIFY
-# define EV_USE_INOTIFY EV_FEATURE_OS
-# endif
-# else
-# undef EV_USE_INOTIFY
-# define EV_USE_INOTIFY 0
-# endif
-
-# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
-# ifndef EV_USE_SIGNALFD
-# define EV_USE_SIGNALFD EV_FEATURE_OS
-# endif
-# else
-# undef EV_USE_SIGNALFD
-# define EV_USE_SIGNALFD 0
-# endif
-
-# if HAVE_EVENTFD
-# ifndef EV_USE_EVENTFD
-# define EV_USE_EVENTFD EV_FEATURE_OS
-# endif
-# else
-# undef EV_USE_EVENTFD
-# define EV_USE_EVENTFD 0
-# endif
-
-#endif
-
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <stddef.h>
-
-#include <stdio.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <time.h>
-#include <limits.h>
-
-#include <signal.h>
-
-#ifdef EV_H
-# include EV_H
-#else
-# include "ev.h"
-#endif
-
-EV_CPP(extern "C" {)
-
-#ifndef _WIN32
-# include <sys/time.h>
-# include <sys/wait.h>
-# include <unistd.h>
-#else
-# include <io.h>
-# define WIN32_LEAN_AND_MEAN
-# include <windows.h>
-# ifndef EV_SELECT_IS_WINSOCKET
-# define EV_SELECT_IS_WINSOCKET 1
-# endif
-# undef EV_AVOID_STDIO
-#endif
-
-/* OS X, in its infinite idiocy, actually HARDCODES
- * a limit of 1024 into their select. Where people have brains,
- * OS X engineers apparently have a vacuum. Or maybe they were
- * ordered to have a vacuum, or they do anything for money.
- * This might help. Or not.
- */
-#define _DARWIN_UNLIMITED_SELECT 1
-
-/* this block tries to deduce configuration from header-defined symbols and defaults */
-
-/* try to deduce the maximum number of signals on this platform */
-#if defined (EV_NSIG)
-/* use what's provided */
-#elif defined (NSIG)
-# define EV_NSIG (NSIG)
-#elif defined(_NSIG)
-# define EV_NSIG (_NSIG)
-#elif defined (SIGMAX)
-# define EV_NSIG (SIGMAX+1)
-#elif defined (SIG_MAX)
-# define EV_NSIG (SIG_MAX+1)
-#elif defined (_SIG_MAX)
-# define EV_NSIG (_SIG_MAX+1)
-#elif defined (MAXSIG)
-# define EV_NSIG (MAXSIG+1)
-#elif defined (MAX_SIG)
-# define EV_NSIG (MAX_SIG+1)
-#elif defined (SIGARRAYSIZE)
-# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
-#elif defined (_sys_nsig)
-# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
-#else
-# error "unable to find value for NSIG, please report"
-/* to make it compile regardless, just remove the above line, */
-/* but consider reporting it, too! :) */
-# define EV_NSIG 65
-#endif
-
-#ifndef EV_USE_CLOCK_SYSCALL
-# if __linux && __GLIBC__ >= 2
-# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
-# else
-# define EV_USE_CLOCK_SYSCALL 0
-# endif
-#endif
-
-#ifndef EV_USE_MONOTONIC
-# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
-# define EV_USE_MONOTONIC EV_FEATURE_OS
-# else
-# define EV_USE_MONOTONIC 0
-# endif
-#endif
-
-#ifndef EV_USE_REALTIME
-# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
-#endif
-
-#ifndef EV_USE_NANOSLEEP
-# if _POSIX_C_SOURCE >= 199309L
-# define EV_USE_NANOSLEEP EV_FEATURE_OS
-# else
-# define EV_USE_NANOSLEEP 0
-# endif
-#endif
-
-#ifndef EV_USE_SELECT
-# define EV_USE_SELECT EV_FEATURE_BACKENDS
-#endif
-
-#ifndef EV_USE_POLL
-# ifdef _WIN32
-# define EV_USE_POLL 0
-# else
-# define EV_USE_POLL EV_FEATURE_BACKENDS
-# endif
-#endif
-
-#ifndef EV_USE_EPOLL
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
-# define EV_USE_EPOLL EV_FEATURE_BACKENDS
-# else
-# define EV_USE_EPOLL 0
-# endif
-#endif
-
-#ifndef EV_USE_KQUEUE
-# define EV_USE_KQUEUE 0
-#endif
-
-#ifndef EV_USE_PORT
-# define EV_USE_PORT 0
-#endif
-
-#ifndef EV_USE_INOTIFY
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
-# define EV_USE_INOTIFY EV_FEATURE_OS
-# else
-# define EV_USE_INOTIFY 0
-# endif
-#endif
-
-#ifndef EV_PID_HASHSIZE
-# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
-#endif
-
-#ifndef EV_INOTIFY_HASHSIZE
-# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
-#endif
-
-#ifndef EV_USE_EVENTFD
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
-# define EV_USE_EVENTFD EV_FEATURE_OS
-# else
-# define EV_USE_EVENTFD 0
-# endif
-#endif
-
-#ifndef EV_USE_SIGNALFD
-# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
-# define EV_USE_SIGNALFD EV_FEATURE_OS
-# else
-# define EV_USE_SIGNALFD 0
-# endif
-#endif
-
-#if 0 /* debugging */
-# define EV_VERIFY 3
-# define EV_USE_4HEAP 1
-# define EV_HEAP_CACHE_AT 1
-#endif
-
-#ifndef EV_VERIFY
-# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
-#endif
-
-#ifndef EV_USE_4HEAP
-# define EV_USE_4HEAP EV_FEATURE_DATA
-#endif
-
-#ifndef EV_HEAP_CACHE_AT
-# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
-#endif
-
-/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
-/* which makes programs even slower. might work on other unices, too. */
-#if EV_USE_CLOCK_SYSCALL
-# include <syscall.h>
-# ifdef SYS_clock_gettime
-# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
-# undef EV_USE_MONOTONIC
-# define EV_USE_MONOTONIC 1
-# else
-# undef EV_USE_CLOCK_SYSCALL
-# define EV_USE_CLOCK_SYSCALL 0
-# endif
-#endif
-
-/* this block fixes any misconfiguration where we know we run into trouble otherwise */
-
-#ifdef _AIX
-/* AIX has a completely broken poll.h header */
-# undef EV_USE_POLL
-# define EV_USE_POLL 0
-#endif
-
-#ifndef CLOCK_MONOTONIC
-# undef EV_USE_MONOTONIC
-# define EV_USE_MONOTONIC 0
-#endif
-
-#ifndef CLOCK_REALTIME
-# undef EV_USE_REALTIME
-# define EV_USE_REALTIME 0
-#endif
-
-#if !EV_STAT_ENABLE
-# undef EV_USE_INOTIFY
-# define EV_USE_INOTIFY 0
-#endif
-
-#if !EV_USE_NANOSLEEP
-/* hp-ux has it in sys/time.h, which we unconditionally include above */
-# if !defined(_WIN32) && !defined(__hpux)
-# include <sys/select.h>
-# endif
-#endif
-
-#if EV_USE_INOTIFY
-# include <sys/statfs.h>
-# include <sys/inotify.h>
-/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
-# ifndef IN_DONT_FOLLOW
-# undef EV_USE_INOTIFY
-# define EV_USE_INOTIFY 0
-# endif
-#endif
-
-#if EV_SELECT_IS_WINSOCKET
-# include <winsock.h>
-#endif
-
-#if EV_USE_EVENTFD
-/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
-# include <stdint.h>
-# ifndef EFD_NONBLOCK
-# define EFD_NONBLOCK O_NONBLOCK
-# endif
-# ifndef EFD_CLOEXEC
-# ifdef O_CLOEXEC
-# define EFD_CLOEXEC O_CLOEXEC
-# else
-# define EFD_CLOEXEC 02000000
-# endif
-# endif
-EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
-#endif
-
-#if EV_USE_SIGNALFD
-/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
-# include <stdint.h>
-# ifndef SFD_NONBLOCK
-# define SFD_NONBLOCK O_NONBLOCK
-# endif
-# ifndef SFD_CLOEXEC
-# ifdef O_CLOEXEC
-# define SFD_CLOEXEC O_CLOEXEC
-# else
-# define SFD_CLOEXEC 02000000
-# endif
-# endif
-EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
-
-struct signalfd_siginfo
-{
- uint32_t ssi_signo;
- char pad[128 - sizeof (uint32_t)];
-};
-#endif
-
-/**/
-
-#if EV_VERIFY >= 3
-# define EV_FREQUENT_CHECK ev_verify (EV_A)
-#else
-# define EV_FREQUENT_CHECK do { } while (0)
-#endif
-
-/*
- * This is used to avoid floating point rounding problems.
- * It is added to ev_rt_now when scheduling periodics
- * to ensure progress, time-wise, even when rounding
- * errors are against us.
- * This value is good at least till the year 4000.
- * Better solutions welcome.
- */
-#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
-
-#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
-#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
-
-#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
-#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
-
-#if __GNUC__ >= 4
-# define expect(expr,value) __builtin_expect ((expr),(value))
-# define noinline __attribute__ ((noinline))
-#else
-# define expect(expr,value) (expr)
-# define noinline
-# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
-# define inline
-# endif
-#endif
-
-#define expect_false(expr) expect ((expr) != 0, 0)
-#define expect_true(expr) expect ((expr) != 0, 1)
-#define inline_size static inline
-
-#if EV_FEATURE_CODE
-# define inline_speed static inline
-#else
-# define inline_speed static noinline
-#endif
-
-#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
-
-#if EV_MINPRI == EV_MAXPRI
-# define ABSPRI(w) (((W)w), 0)
-#else
-# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
-#endif
-
-#define EMPTY /* required for microsofts broken pseudo-c compiler */
-#define EMPTY2(a,b) /* used to suppress some warnings */
-
-typedef ev_watcher *W;
-typedef ev_watcher_list *WL;
-typedef ev_watcher_time *WT;
-
-#define ev_active(w) ((W)(w))->active
-#define ev_at(w) ((WT)(w))->at
-
-#if EV_USE_REALTIME
-/* sig_atomic_t is used to avoid per-thread variables or locking but still */
-/* giving it a reasonably high chance of working on typical architectures */
-static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
-#endif
-
-#if EV_USE_MONOTONIC
-static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
-#endif
-
-#ifndef EV_FD_TO_WIN32_HANDLE
-# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
-#endif
-#ifndef EV_WIN32_HANDLE_TO_FD
-# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
-#endif
-#ifndef EV_WIN32_CLOSE_FD
-# define EV_WIN32_CLOSE_FD(fd) close (fd)
-#endif
-
-#ifdef _WIN32
-# include "ev_win32.c"
-#endif
-
-/*****************************************************************************/
-
-#ifdef __linux
-# include <sys/utsname.h>
-#endif
-
-static unsigned int noinline
-ev_linux_version (void)
-{
-#ifdef __linux
- unsigned int v = 0;
- struct utsname buf;
- int i;
- char *p = buf.release;
-
- if (uname (&buf))
- return 0;
-
- for (i = 3+1; --i; )
- {
- unsigned int c = 0;
-
- for (;;)
- {
- if (*p >= '0' && *p <= '9')
- c = c * 10 + *p++ - '0';
- else
- {
- p += *p == '.';
- break;
- }
- }
-
- v = (v << 8) | c;
- }
-
- return v;
-#else
- return 0;
-#endif
-}
-
-/*****************************************************************************/
-
-#if EV_AVOID_STDIO
-static void noinline
-ev_printerr (const char *msg)
-{
- write (STDERR_FILENO, msg, strlen (msg));
-}
-#endif
-
-static void (*syserr_cb)(const char *msg);
-
-void
-ev_set_syserr_cb (void (*cb)(const char *msg))
-{
- syserr_cb = cb;
-}
-
-static void noinline
-ev_syserr (const char *msg)
-{
- if (!msg)
- msg = "(libev) system error";
-
- if (syserr_cb)
- syserr_cb (msg);
- else
- {
-#if EV_AVOID_STDIO
- ev_printerr (msg);
- ev_printerr (": ");
- ev_printerr (strerror (errno));
- ev_printerr ("\n");
-#else
- perror (msg);
-#endif
- abort ();
- }
-}
-
-static void *
-ev_realloc_emul (void *ptr, long size)
-{
-#if __GLIBC__
- return realloc (ptr, size);
-#else
- /* some systems, notably openbsd and darwin, fail to properly
- * implement realloc (x, 0) (as required by both ansi c-89 and
- * the single unix specification, so work around them here.
- */
-
- if (size)
- return realloc (ptr, size);
-
- free (ptr);
- return 0;
-#endif
-}
-
-static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
-
-void
-ev_set_allocator (void *(*cb)(void *ptr, long size))
-{
- alloc = cb;
-}
-
-inline_speed void *
-ev_realloc (void *ptr, long size)
-{
- ptr = alloc (ptr, size);
-
- if (!ptr && size)
- {
-#if EV_AVOID_STDIO
- ev_printerr ("(libev) memory allocation failed, aborting.\n");
-#else
- fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
-#endif
- abort ();
- }
-
- return ptr;
-}
-
-#define ev_malloc(size) ev_realloc (0, (size))
-#define ev_free(ptr) ev_realloc ((ptr), 0)
-
-/*****************************************************************************/
-
-/* set in reify when reification needed */
-#define EV_ANFD_REIFY 1
-
-/* file descriptor info structure */
-typedef struct
-{
- WL head;
- unsigned char events; /* the events watched for */
- unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
- unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
- unsigned char unused;
-#if EV_USE_EPOLL
- unsigned int egen; /* generation counter to counter epoll bugs */
-#endif
-#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
- SOCKET handle;
-#endif
-#if EV_USE_IOCP
- OVERLAPPED or, ow;
-#endif
-} ANFD;
-
-/* stores the pending event set for a given watcher */
-typedef struct
-{
- W w;
- int events; /* the pending event set for the given watcher */
-} ANPENDING;
-
-#if EV_USE_INOTIFY
-/* hash table entry per inotify-id */
-typedef struct
-{
- WL head;
-} ANFS;
-#endif
-
-/* Heap Entry */
-#if EV_HEAP_CACHE_AT
- /* a heap element */
- typedef struct {
- ev_tstamp at;
- WT w;
- } ANHE;
-
- #define ANHE_w(he) (he).w /* access watcher, read-write */
- #define ANHE_at(he) (he).at /* access cached at, read-only */
- #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
-#else
- /* a heap element */
- typedef WT ANHE;
-
- #define ANHE_w(he) (he)
- #define ANHE_at(he) (he)->at
- #define ANHE_at_cache(he)
-#endif
-
-#if EV_MULTIPLICITY
-
- struct ev_loop
- {
- ev_tstamp ev_rt_now;
- #define ev_rt_now ((loop)->ev_rt_now)
- #define VAR(name,decl) decl;
- #include "ev_vars.h"
- #undef VAR
- };
- #include "ev_wrap.h"
-
- static struct ev_loop default_loop_struct;
- struct ev_loop *ev_default_loop_ptr;
-
-#else
-
- ev_tstamp ev_rt_now;
- #define VAR(name,decl) static decl;
- #include "ev_vars.h"
- #undef VAR
-
- static int ev_default_loop_ptr;
-
-#endif
-
-#if EV_FEATURE_API
-# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
-# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
-# define EV_INVOKE_PENDING invoke_cb (EV_A)
-#else
-# define EV_RELEASE_CB (void)0
-# define EV_ACQUIRE_CB (void)0
-# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
-#endif
-
-#define EVBREAK_RECURSE 0x80
-
-/*****************************************************************************/
-
-#ifndef EV_HAVE_EV_TIME
-ev_tstamp
-ev_time (void)
-{
-#if EV_USE_REALTIME
- if (expect_true (have_realtime))
- {
- struct timespec ts;
- clock_gettime (CLOCK_REALTIME, &ts);
- return ts.tv_sec + ts.tv_nsec * 1e-9;
- }
-#endif
-
- struct timeval tv;
- gettimeofday (&tv, 0);
- return tv.tv_sec + tv.tv_usec * 1e-6;
-}
-#endif
-
-inline_size ev_tstamp
-get_clock (void)
-{
-#if EV_USE_MONOTONIC
- if (expect_true (have_monotonic))
- {
- struct timespec ts;
- clock_gettime (CLOCK_MONOTONIC, &ts);
- return ts.tv_sec + ts.tv_nsec * 1e-9;
- }
-#endif
-
- return ev_time ();
-}
-
-#if EV_MULTIPLICITY
-ev_tstamp
-ev_now (EV_P)
-{
- return ev_rt_now;
-}
-#endif
-
-void
-ev_sleep (ev_tstamp delay)
-{
- if (delay > 0.)
- {
-#if EV_USE_NANOSLEEP
- struct timespec ts;
-
- EV_TS_SET (ts, delay);
- nanosleep (&ts, 0);
-#elif defined(_WIN32)
- Sleep ((unsigned long)(delay * 1e3));
-#else
- struct timeval tv;
-
- /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
- /* something not guaranteed by newer posix versions, but guaranteed */
- /* by older ones */
- EV_TV_SET (tv, delay);
- select (0, 0, 0, 0, &tv);
-#endif
- }
-}
-
-inline_speed int
-ev_timeout_to_ms (ev_tstamp timeout)
-{
- int ms = timeout * 1000. + .999999;
-
- return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
-}
-
-/*****************************************************************************/
-
-#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
-
-/* find a suitable new size for the given array, */
-/* hopefully by rounding to a nice-to-malloc size */
-inline_size int
-array_nextsize (int elem, int cur, int cnt)
-{
- int ncur = cur + 1;
-
- do
- ncur <<= 1;
- while (cnt > ncur);
-
- /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */
- if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
- {
- ncur *= elem;
- ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
- ncur = ncur - sizeof (void *) * 4;
- ncur /= elem;
- }
-
- return ncur;
-}
-
-static noinline void *
-array_realloc (int elem, void *base, int *cur, int cnt)
-{
- *cur = array_nextsize (elem, *cur, cnt);
- return ev_realloc (base, elem * *cur);
-}
-
-#define array_init_zero(base,count) \
- memset ((void *)(base), 0, sizeof (*(base)) * (count))
-
-#define array_needsize(type,base,cur,cnt,init) \
- if (expect_false ((cnt) > (cur))) \
- { \
- int ocur_ = (cur); \
- (base) = (type *)array_realloc \
- (sizeof (type), (base), &(cur), (cnt)); \
- init ((base) + (ocur_), (cur) - ocur_); \
- }
-
-#if 0
-#define array_slim(type,stem) \
- if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
- { \
- stem ## max = array_roundsize (stem ## cnt >> 1); \
- base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
- fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
- }
-#endif
-
-#define array_free(stem, idx) \
- ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
-
-/*****************************************************************************/
-
-/* dummy callback for pending events */
-static void noinline
-pendingcb (EV_P_ ev_prepare *w, int revents)
-{
-}
-
-void noinline
-ev_feed_event (EV_P_ void *w, int revents)
-{
- W w_ = (W)w;
- int pri = ABSPRI (w_);
-
- if (expect_false (w_->pending))
- pendings [pri][w_->pending - 1].events |= revents;
- else
- {
- w_->pending = ++pendingcnt [pri];
- array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
- pendings [pri][w_->pending - 1].w = w_;
- pendings [pri][w_->pending - 1].events = revents;
- }
-}
-
-inline_speed void
-feed_reverse (EV_P_ W w)
-{
- array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
- rfeeds [rfeedcnt++] = w;
-}
-
-inline_size void
-feed_reverse_done (EV_P_ int revents)
-{
- do
- ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
- while (rfeedcnt);
-}
-
-inline_speed void
-queue_events (EV_P_ W *events, int eventcnt, int type)
-{
- int i;
-
- for (i = 0; i < eventcnt; ++i)
- ev_feed_event (EV_A_ events [i], type);
-}
-
-/*****************************************************************************/
-
-inline_speed void
-fd_event_nocheck (EV_P_ int fd, int revents)
-{
- ANFD *anfd = anfds + fd;
- ev_io *w;
-
- for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
- {
- int ev = w->events & revents;
-
- if (ev)
- ev_feed_event (EV_A_ (W)w, ev);
- }
-}
-
-/* do not submit kernel events for fds that have reify set */
-/* because that means they changed while we were polling for new events */
-inline_speed void
-fd_event (EV_P_ int fd, int revents)
-{
- ANFD *anfd = anfds + fd;
-
- if (expect_true (!anfd->reify))
- fd_event_nocheck (EV_A_ fd, revents);
-}
-
-void
-ev_feed_fd_event (EV_P_ int fd, int revents)
-{
- if (fd >= 0 && fd < anfdmax)
- fd_event_nocheck (EV_A_ fd, revents);
-}
-
-/* make sure the external fd watch events are in-sync */
-/* with the kernel/libev internal state */
-inline_size void
-fd_reify (EV_P)
-{
- int i;
-
-#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
- for (i = 0; i < fdchangecnt; ++i)
- {
- int fd = fdchanges [i];
- ANFD *anfd = anfds + fd;
-
- if (anfd->reify & EV__IOFDSET)
- {
- SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
-
- if (handle != anfd->handle)
- {
- unsigned long arg;
-
- assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
-
- /* handle changed, but fd didn't - we need to do it in two steps */
- backend_modify (EV_A_ fd, anfd->events, 0);
- anfd->events = 0;
- anfd->handle = handle;
- }
- }
- }
-#endif
-
- for (i = 0; i < fdchangecnt; ++i)
- {
- int fd = fdchanges [i];
- ANFD *anfd = anfds + fd;
- ev_io *w;
-
- unsigned char o_events = anfd->events;
- unsigned char o_reify = anfd->reify;
-
- anfd->reify = 0;
-
- /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
- {
- anfd->events = 0;
-
- for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
- anfd->events |= (unsigned char)w->events;
-
- if (o_events != anfd->events)
- o_reify = EV__IOFDSET; /* actually |= */
- }
-
- if (o_reify & EV__IOFDSET)
- backend_modify (EV_A_ fd, o_events, anfd->events);
- }
-
- fdchangecnt = 0;
-}
-
-/* something about the given fd changed */
-inline_size void
-fd_change (EV_P_ int fd, int flags)
-{
- unsigned char reify = anfds [fd].reify;
- anfds [fd].reify |= flags;
-
- if (expect_true (!reify))
- {
- ++fdchangecnt;
- array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
- fdchanges [fdchangecnt - 1] = fd;
- }
-}
-
-/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
-inline_speed void
-fd_kill (EV_P_ int fd)
-{
- ev_io *w;
-
- while ((w = (ev_io *)anfds [fd].head))
- {
- ev_io_stop (EV_A_ w);
- ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
- }
-}
-
-/* check whether the given fd is actually valid, for error recovery */
-inline_size int
-fd_valid (int fd)
-{
-#ifdef _WIN32
- return EV_FD_TO_WIN32_HANDLE (fd) != -1;
-#else
- return fcntl (fd, F_GETFD) != -1;
-#endif
-}
-
-/* called on EBADF to verify fds */
-static void noinline
-fd_ebadf (EV_P)
-{
- int fd;
-
- for (fd = 0; fd < anfdmax; ++fd)
- if (anfds [fd].events)
- if (!fd_valid (fd) && errno == EBADF)
- fd_kill (EV_A_ fd);
-}
-
-/* called on ENOMEM in select/poll to kill some fds and retry */
-static void noinline
-fd_enomem (EV_P)
-{
- int fd;
-
- for (fd = anfdmax; fd--; )
- if (anfds [fd].events)
- {
- fd_kill (EV_A_ fd);
- break;
- }
-}
-
-/* usually called after fork if backend needs to re-arm all fds from scratch */
-static void noinline
-fd_rearm_all (EV_P)
-{
- int fd;
-
- for (fd = 0; fd < anfdmax; ++fd)
- if (anfds [fd].events)
- {
- anfds [fd].events = 0;
- anfds [fd].emask = 0;
- fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
- }
-}
-
-/* used to prepare libev internal fd's */
-/* this is not fork-safe */
-inline_speed void
-fd_intern (int fd)
-{
-#ifdef _WIN32
- unsigned long arg = 1;
- ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
-#else
- fcntl (fd, F_SETFD, FD_CLOEXEC);
- fcntl (fd, F_SETFL, O_NONBLOCK);
-#endif
-}
-
-/*****************************************************************************/
-
-/*
- * the heap functions want a real array index. array index 0 is guaranteed to not
- * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
- * the branching factor of the d-tree.
- */
-
-/*
- * at the moment we allow libev the luxury of two heaps,
- * a small-code-size 2-heap one and a ~1.5kb larger 4-heap
- * which is more cache-efficient.
- * the difference is about 5% with 50000+ watchers.
- */
-#if EV_USE_4HEAP
-
-#define DHEAP 4
-#define HEAP0 (DHEAP - 1) /* index of first element in heap */
-#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
-#define UPHEAP_DONE(p,k) ((p) == (k))
-
-/* away from the root */
-inline_speed void
-downheap (ANHE *heap, int N, int k)
-{
- ANHE he = heap [k];
- ANHE *E = heap + N + HEAP0;
-
- for (;;)
- {
- ev_tstamp minat;
- ANHE *minpos;
- ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
-
- /* find minimum child */
- if (expect_true (pos + DHEAP - 1 < E))
- {
- /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
- if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
- if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
- if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
- }
- else if (pos < E)
- {
- /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
- if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
- if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
- if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos));
- }
- else
- break;
-
- if (ANHE_at (he) <= minat)
- break;
-
- heap [k] = *minpos;
- ev_active (ANHE_w (*minpos)) = k;
-
- k = minpos - heap;
- }
-
- heap [k] = he;
- ev_active (ANHE_w (he)) = k;
-}
-
-#else /* 4HEAP */
-
-#define HEAP0 1
-#define HPARENT(k) ((k) >> 1)
-#define UPHEAP_DONE(p,k) (!(p))
-
-/* away from the root */
-inline_speed void
-downheap (ANHE *heap, int N, int k)
-{
- ANHE he = heap [k];
-
- for (;;)
- {
- int c = k << 1;
-
- if (c >= N + HEAP0)
- break;
-
- c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
- ? 1 : 0;
-
- if (ANHE_at (he) <= ANHE_at (heap [c]))
- break;
-
- heap [k] = heap [c];
- ev_active (ANHE_w (heap [k])) = k;
-
- k = c;
- }
-
- heap [k] = he;
- ev_active (ANHE_w (he)) = k;
-}
-#endif
-
-/* towards the root */
-inline_speed void
-upheap (ANHE *heap, int k)
-{
- ANHE he = heap [k];
-
- for (;;)
- {
- int p = HPARENT (k);
-
- if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
- break;
-
- heap [k] = heap [p];
- ev_active (ANHE_w (heap [k])) = k;
- k = p;
- }
-
- heap [k] = he;
- ev_active (ANHE_w (he)) = k;
-}
-
-/* move an element suitably so it is in a correct place */
-inline_size void
-adjustheap (ANHE *heap, int N, int k)
-{
- if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
- upheap (heap, k);
- else
- downheap (heap, N, k);
-}
-
-/* rebuild the heap: this function is used only once and executed rarely */
-inline_size void
-reheap (ANHE *heap, int N)
-{
- int i;
-
- /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
- /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
- for (i = 0; i < N; ++i)
- upheap (heap, i + HEAP0);
-}
-
-/*****************************************************************************/
-
-/* associate signal watchers to a signal signal */
-typedef struct
-{
- EV_ATOMIC_T pending;
-#if EV_MULTIPLICITY
- EV_P;
-#endif
- WL head;
-} ANSIG;
-
-static ANSIG signals [EV_NSIG - 1];
-
-/*****************************************************************************/
-
-#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
-
-static void noinline
-evpipe_init (EV_P)
-{
- if (!ev_is_active (&pipe_w))
- {
-# if EV_USE_EVENTFD
- evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
- if (evfd < 0 && errno == EINVAL)
- evfd = eventfd (0, 0);
-
- if (evfd >= 0)
- {
- evpipe [0] = -1;
- fd_intern (evfd); /* doing it twice doesn't hurt */
- ev_io_set (&pipe_w, evfd, EV_READ);
- }
- else
-# endif
- {
- while (pipe (evpipe))
- ev_syserr ("(libev) error creating signal/async pipe");
-
- fd_intern (evpipe [0]);
- fd_intern (evpipe [1]);
- ev_io_set (&pipe_w, evpipe [0], EV_READ);
- }
-
- ev_io_start (EV_A_ &pipe_w);
- ev_unref (EV_A); /* watcher should not keep loop alive */
- }
-}
-
-inline_size void
-evpipe_write (EV_P_ EV_ATOMIC_T *flag)
-{
- if (!*flag)
- {
- int old_errno = errno; /* save errno because write might clobber it */
- char dummy;
-
- *flag = 1;
-
-#if EV_USE_EVENTFD
- if (evfd >= 0)
- {
- uint64_t counter = 1;
- write (evfd, &counter, sizeof (uint64_t));
- }
- else
-#endif
- /* win32 people keep sending patches that change this write() to send() */
- /* and then run away. but send() is wrong, it wants a socket handle on win32 */
- /* so when you think this write should be a send instead, please find out */
- /* where your send() is from - it's definitely not the microsoft send, and */
- /* tell me. thank you. */
- write (evpipe [1], &dummy, 1);
-
- errno = old_errno;
- }
-}
-
-/* called whenever the libev signal pipe */
-/* got some events (signal, async) */
-static void
-pipecb (EV_P_ ev_io *iow, int revents)
-{
- int i;
-
-#if EV_USE_EVENTFD
- if (evfd >= 0)
- {
- uint64_t counter;
- read (evfd, &counter, sizeof (uint64_t));
- }
- else
-#endif
- {
- char dummy;
- /* see discussion in evpipe_write when you think this read should be recv in win32 */
- read (evpipe [0], &dummy, 1);
- }
-
-#if EV_SIGNAL_ENABLE
- if (sig_pending)
- {
- sig_pending = 0;
-
- for (i = EV_NSIG - 1; i--; )
- if (expect_false (signals [i].pending))
- ev_feed_signal_event (EV_A_ i + 1);
- }
-#endif
-
-#if EV_ASYNC_ENABLE
- if (async_pending)
- {
- async_pending = 0;
-
- for (i = asynccnt; i--; )
- if (asyncs [i]->sent)
- {
- asyncs [i]->sent = 0;
- ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
- }
- }
-#endif
-}
-
-/*****************************************************************************/
-
-void
-ev_feed_signal (int signum)
-{
-#if EV_MULTIPLICITY
- EV_P = signals [signum - 1].loop;
-
- if (!EV_A)
- return;
-#endif
-
- signals [signum - 1].pending = 1;
- evpipe_write (EV_A_ &sig_pending);
-}
-
-static void
-ev_sighandler (int signum)
-{
-#ifdef _WIN32
- signal (signum, ev_sighandler);
-#endif
-
- ev_feed_signal (signum);
-}
-
-void noinline
-ev_feed_signal_event (EV_P_ int signum)
-{
- WL w;
-
- if (expect_false (signum <= 0 || signum > EV_NSIG))
- return;
-
- --signum;
-
-#if EV_MULTIPLICITY
- /* it is permissible to try to feed a signal to the wrong loop */
- /* or, likely more useful, feeding a signal nobody is waiting for */
-
- if (expect_false (signals [signum].loop != EV_A))
- return;
-#endif
-
- signals [signum].pending = 0;
-
- for (w = signals [signum].head; w; w = w->next)
- ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
-}
-
-#if EV_USE_SIGNALFD
-static void
-sigfdcb (EV_P_ ev_io *iow, int revents)
-{
- struct signalfd_siginfo si[2], *sip; /* these structs are big */
-
- for (;;)
- {
- ssize_t res = read (sigfd, si, sizeof (si));
-
- /* not ISO-C, as res might be -1, but works with SuS */
- for (sip = si; (char *)sip < (char *)si + res; ++sip)
- ev_feed_signal_event (EV_A_ sip->ssi_signo);
-
- if (res < (ssize_t)sizeof (si))
- break;
- }
-}
-#endif
-
-#endif
-
-/*****************************************************************************/
-
-#if EV_CHILD_ENABLE
-static WL childs [EV_PID_HASHSIZE];
-
-static ev_signal childev;
-
-#ifndef WIFCONTINUED
-# define WIFCONTINUED(status) 0
-#endif
-
-/* handle a single child status event */
-inline_speed void
-child_reap (EV_P_ int chain, int pid, int status)
-{
- ev_child *w;
- int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
-
- for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
- {
- if ((w->pid == pid || !w->pid)
- && (!traced || (w->flags & 1)))
- {
- ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
- w->rpid = pid;
- w->rstatus = status;
- ev_feed_event (EV_A_ (W)w, EV_CHILD);
- }
- }
-}
-
-#ifndef WCONTINUED
-# define WCONTINUED 0
-#endif
-
-/* called on sigchld etc., calls waitpid */
-static void
-childcb (EV_P_ ev_signal *sw, int revents)
-{
- int pid, status;
-
- /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
- if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
- if (!WCONTINUED
- || errno != EINVAL
- || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
- return;
-
- /* make sure we are called again until all children have been reaped */
- /* we need to do it this way so that the callback gets called before we continue */
- ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
-
- child_reap (EV_A_ pid, pid, status);
- if ((EV_PID_HASHSIZE) > 1)
- child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
-}
-
-#endif
-
-/*****************************************************************************/
-
-#if EV_USE_IOCP
-# include "ev_iocp.c"
-#endif
-#if EV_USE_PORT
-# include "ev_port.c"
-#endif
-#if EV_USE_KQUEUE
-# include "ev_kqueue.c"
-#endif
-#if EV_USE_EPOLL
-# include "ev_epoll.c"
-#endif
-#if EV_USE_POLL
-# include "ev_poll.c"
-#endif
-#if EV_USE_SELECT
-# include "ev_select.c"
-#endif
-
-int
-ev_version_major (void)
-{
- return EV_VERSION_MAJOR;
-}
-
-int
-ev_version_minor (void)
-{
- return EV_VERSION_MINOR;
-}
-
-/* return true if we are running with elevated privileges and should ignore env variables */
-int inline_size
-enable_secure (void)
-{
-#ifdef _WIN32
- return 0;
-#else
- return getuid () != geteuid ()
- || getgid () != getegid ();
-#endif
-}
-
-unsigned int
-ev_supported_backends (void)
-{
- unsigned int flags = 0;
-
- if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
- if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
- if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
- if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
- if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
-
- return flags;
-}
-
-unsigned int
-ev_recommended_backends (void)
-{
- unsigned int flags = ev_supported_backends ();
-
-#ifndef __NetBSD__
- /* kqueue is borked on everything but netbsd apparently */
- /* it usually doesn't work correctly on anything but sockets and pipes */
- flags &= ~EVBACKEND_KQUEUE;
-#endif
-#ifdef __APPLE__
- /* only select works correctly on that "unix-certified" platform */
- flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
- flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
-#endif
-#ifdef __FreeBSD__
- flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
-#endif
-
- return flags;
-}
-
-unsigned int
-ev_embeddable_backends (void)
-{
- int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
-
- /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
- if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
- flags &= ~EVBACKEND_EPOLL;
-
- return flags;
-}
-
-unsigned int
-ev_backend (EV_P)
-{
- return backend;
-}
-
-#if EV_FEATURE_API
-unsigned int
-ev_iteration (EV_P)
-{
- return loop_count;
-}
-
-unsigned int
-ev_depth (EV_P)
-{
- return loop_depth;
-}
-
-void
-ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
-{
- io_blocktime = interval;
-}
-
-void
-ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
-{
- timeout_blocktime = interval;
-}
-
-void
-ev_set_userdata (EV_P_ void *data)
-{
- userdata = data;
-}
-
-void *
-ev_userdata (EV_P)
-{
- return userdata;
-}
-
-void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
-{
- invoke_cb = invoke_pending_cb;
-}
-
-void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
-{
- release_cb = release;
- acquire_cb = acquire;
-}
-#endif
-
-/* initialise a loop structure, must be zero-initialised */
-static void noinline
-loop_init (EV_P_ unsigned int flags)
-{
- if (!backend)
- {
- origflags = flags;
-
-#if EV_USE_REALTIME
- if (!have_realtime)
- {
- struct timespec ts;
-
- if (!clock_gettime (CLOCK_REALTIME, &ts))
- have_realtime = 1;
- }
-#endif
-
-#if EV_USE_MONOTONIC
- if (!have_monotonic)
- {
- struct timespec ts;
-
- if (!clock_gettime (CLOCK_MONOTONIC, &ts))
- have_monotonic = 1;
- }
-#endif
-
- /* pid check not overridable via env */
-#ifndef _WIN32
- if (flags & EVFLAG_FORKCHECK)
- curpid = getpid ();
-#endif
-
- if (!(flags & EVFLAG_NOENV)
- && !enable_secure ()
- && getenv ("LIBEV_FLAGS"))
- flags = atoi (getenv ("LIBEV_FLAGS"));
-
- ev_rt_now = ev_time ();
- mn_now = get_clock ();
- now_floor = mn_now;
- rtmn_diff = ev_rt_now - mn_now;
-#if EV_FEATURE_API
- invoke_cb = ev_invoke_pending;
-#endif
-
- io_blocktime = 0.;
- timeout_blocktime = 0.;
- backend = 0;
- backend_fd = -1;
- sig_pending = 0;
-#if EV_ASYNC_ENABLE
- async_pending = 0;
-#endif
-#if EV_USE_INOTIFY
- fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
-#endif
-#if EV_USE_SIGNALFD
- sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
-#endif
-
- if (!(flags & EVBACKEND_MASK))
- flags |= ev_recommended_backends ();
-
-#if EV_USE_IOCP
- if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
-#endif
-#if EV_USE_PORT
- if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
-#endif
-#if EV_USE_KQUEUE
- if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
-#endif
-#if EV_USE_EPOLL
- if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
-#endif
-#if EV_USE_POLL
- if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
-#endif
-#if EV_USE_SELECT
- if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
-#endif
-
- ev_prepare_init (&pending_w, pendingcb);
-
-#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
- ev_init (&pipe_w, pipecb);
- ev_set_priority (&pipe_w, EV_MAXPRI);
-#endif
- }
-}
-
-/* free up a loop structure */
-void
-ev_loop_destroy (EV_P)
-{
- int i;
-
-#if EV_MULTIPLICITY
- /* mimic free (0) */
- if (!EV_A)
- return;
-#endif
-
-#if EV_CLEANUP_ENABLE
- /* queue cleanup watchers (and execute them) */
- if (expect_false (cleanupcnt))
- {
- queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
- EV_INVOKE_PENDING;
- }
-#endif
-
-#if EV_CHILD_ENABLE
- if (ev_is_active (&childev))
- {
- ev_ref (EV_A); /* child watcher */
- ev_signal_stop (EV_A_ &childev);
- }
-#endif
-
- if (ev_is_active (&pipe_w))
- {
- /*ev_ref (EV_A);*/
- /*ev_io_stop (EV_A_ &pipe_w);*/
-
-#if EV_USE_EVENTFD
- if (evfd >= 0)
- close (evfd);
-#endif
-
- if (evpipe [0] >= 0)
- {
- EV_WIN32_CLOSE_FD (evpipe [0]);
- EV_WIN32_CLOSE_FD (evpipe [1]);
- }
- }
-
-#if EV_USE_SIGNALFD
- if (ev_is_active (&sigfd_w))
- close (sigfd);
-#endif
-
-#if EV_USE_INOTIFY
- if (fs_fd >= 0)
- close (fs_fd);
-#endif
-
- if (backend_fd >= 0)
- close (backend_fd);
-
-#if EV_USE_IOCP
- if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
-#endif
-#if EV_USE_PORT
- if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
-#endif
-#if EV_USE_KQUEUE
- if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
-#endif
-#if EV_USE_EPOLL
- if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
-#endif
-#if EV_USE_POLL
- if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
-#endif
-#if EV_USE_SELECT
- if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
-#endif
-
- for (i = NUMPRI; i--; )
- {
- array_free (pending, [i]);
-#if EV_IDLE_ENABLE
- array_free (idle, [i]);
-#endif
- }
-
- ev_free (anfds); anfds = 0; anfdmax = 0;
-
- /* have to use the microsoft-never-gets-it-right macro */
- array_free (rfeed, EMPTY);
- array_free (fdchange, EMPTY);
- array_free (timer, EMPTY);
-#if EV_PERIODIC_ENABLE
- array_free (periodic, EMPTY);
-#endif
-#if EV_FORK_ENABLE
- array_free (fork, EMPTY);
-#endif
-#if EV_CLEANUP_ENABLE
- array_free (cleanup, EMPTY);
-#endif
- array_free (prepare, EMPTY);
- array_free (check, EMPTY);
-#if EV_ASYNC_ENABLE
- array_free (async, EMPTY);
-#endif
-
- backend = 0;
-
-#if EV_MULTIPLICITY
- if (ev_is_default_loop (EV_A))
-#endif
- ev_default_loop_ptr = 0;
-#if EV_MULTIPLICITY
- else
- ev_free (EV_A);
-#endif
-}
-
-#if EV_USE_INOTIFY
-inline_size void infy_fork (EV_P);
-#endif
-
-inline_size void
-loop_fork (EV_P)
-{
-#if EV_USE_PORT
- if (backend == EVBACKEND_PORT ) port_fork (EV_A);
-#endif
-#if EV_USE_KQUEUE
- if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
-#endif
-#if EV_USE_EPOLL
- if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
-#endif
-#if EV_USE_INOTIFY
- infy_fork (EV_A);
-#endif
-
- if (ev_is_active (&pipe_w))
- {
- /* this "locks" the handlers against writing to the pipe */
- /* while we modify the fd vars */
- sig_pending = 1;
-#if EV_ASYNC_ENABLE
- async_pending = 1;
-#endif
-
- ev_ref (EV_A);
- ev_io_stop (EV_A_ &pipe_w);
-
-#if EV_USE_EVENTFD
- if (evfd >= 0)
- close (evfd);
-#endif
-
- if (evpipe [0] >= 0)
- {
- EV_WIN32_CLOSE_FD (evpipe [0]);
- EV_WIN32_CLOSE_FD (evpipe [1]);
- }
-
-#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
- evpipe_init (EV_A);
- /* now iterate over everything, in case we missed something */
- pipecb (EV_A_ &pipe_w, EV_READ);
-#endif
- }
-
- postfork = 0;
-}
-
-#if EV_MULTIPLICITY
-
-struct ev_loop *
-ev_loop_new (unsigned int flags)
-{
- EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
-
- memset (EV_A, 0, sizeof (struct ev_loop));
- loop_init (EV_A_ flags);
-
- if (ev_backend (EV_A))
- return EV_A;
-
- ev_free (EV_A);
- return 0;
-}
-
-#endif /* multiplicity */
-
-#if EV_VERIFY
-static void noinline
-verify_watcher (EV_P_ W w)
-{
- assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
-
- if (w->pending)
- assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
-}
-
-static void noinline
-verify_heap (EV_P_ ANHE *heap, int N)
-{
- int i;
-
- for (i = HEAP0; i < N + HEAP0; ++i)
- {
- assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
- assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
- assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
-
- verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
- }
-}
-
-static void noinline
-array_verify (EV_P_ W *ws, int cnt)
-{
- while (cnt--)
- {
- assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
- verify_watcher (EV_A_ ws [cnt]);
- }
-}
-#endif
-
-#if EV_FEATURE_API
-void
-ev_verify (EV_P)
-{
-#if EV_VERIFY
- int i;
- WL w;
-
- assert (activecnt >= -1);
-
- assert (fdchangemax >= fdchangecnt);
- for (i = 0; i < fdchangecnt; ++i)
- assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
-
- assert (anfdmax >= 0);
- for (i = 0; i < anfdmax; ++i)
- for (w = anfds [i].head; w; w = w->next)
- {
- verify_watcher (EV_A_ (W)w);
- assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
- assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
- }
-
- assert (timermax >= timercnt);
- verify_heap (EV_A_ timers, timercnt);
-
-#if EV_PERIODIC_ENABLE
- assert (periodicmax >= periodiccnt);
- verify_heap (EV_A_ periodics, periodiccnt);
-#endif
-
- for (i = NUMPRI; i--; )
- {
- assert (pendingmax [i] >= pendingcnt [i]);
-#if EV_IDLE_ENABLE
- assert (idleall >= 0);
- assert (idlemax [i] >= idlecnt [i]);
- array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
-#endif
- }
-
-#if EV_FORK_ENABLE
- assert (forkmax >= forkcnt);
- array_verify (EV_A_ (W *)forks, forkcnt);
-#endif
-
-#if EV_CLEANUP_ENABLE
- assert (cleanupmax >= cleanupcnt);
- array_verify (EV_A_ (W *)cleanups, cleanupcnt);
-#endif
-
-#if EV_ASYNC_ENABLE
- assert (asyncmax >= asynccnt);
- array_verify (EV_A_ (W *)asyncs, asynccnt);
-#endif
-
-#if EV_PREPARE_ENABLE
- assert (preparemax >= preparecnt);
- array_verify (EV_A_ (W *)prepares, preparecnt);
-#endif
-
-#if EV_CHECK_ENABLE
- assert (checkmax >= checkcnt);
- array_verify (EV_A_ (W *)checks, checkcnt);
-#endif
-
-# if 0
-#if EV_CHILD_ENABLE
- for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
- for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
-#endif
-# endif
-#endif
-}
-#endif
-
-#if EV_MULTIPLICITY
-struct ev_loop *
-#else
-int
-#endif
-ev_default_loop (unsigned int flags)
-{
- if (!ev_default_loop_ptr)
- {
-#if EV_MULTIPLICITY
- EV_P = ev_default_loop_ptr = &default_loop_struct;
-#else
- ev_default_loop_ptr = 1;
-#endif
-
- loop_init (EV_A_ flags);
-
- if (ev_backend (EV_A))
- {
-#if EV_CHILD_ENABLE
- ev_signal_init (&childev, childcb, SIGCHLD);
- ev_set_priority (&childev, EV_MAXPRI);
- ev_signal_start (EV_A_ &childev);
- ev_unref (EV_A); /* child watcher should not keep loop alive */
-#endif
- }
- else
- ev_default_loop_ptr = 0;
- }
-
- return ev_default_loop_ptr;
-}
-
-void
-ev_loop_fork (EV_P)
-{
- postfork = 1; /* must be in line with ev_default_fork */
-}
-
-/*****************************************************************************/
-
-void
-ev_invoke (EV_P_ void *w, int revents)
-{
- EV_CB_INVOKE ((W)w, revents);
-}
-
-unsigned int
-ev_pending_count (EV_P)
-{
- int pri;
- unsigned int count = 0;
-
- for (pri = NUMPRI; pri--; )
- count += pendingcnt [pri];
-
- return count;
-}
-
-void noinline
-ev_invoke_pending (EV_P)
-{
- int pri;
-
- for (pri = NUMPRI; pri--; )
- while (pendingcnt [pri])
- {
- ANPENDING *p = pendings [pri] + --pendingcnt [pri];
-
- p->w->pending = 0;
- EV_CB_INVOKE (p->w, p->events);
- EV_FREQUENT_CHECK;
- }
-}
-
-#if EV_IDLE_ENABLE
-/* make idle watchers pending. this handles the "call-idle */
-/* only when higher priorities are idle" logic */
-inline_size void
-idle_reify (EV_P)
-{
- if (expect_false (idleall))
- {
- int pri;
-
- for (pri = NUMPRI; pri--; )
- {
- if (pendingcnt [pri])
- break;
-
- if (idlecnt [pri])
- {
- queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
- break;
- }
- }
- }
-}
-#endif
-
-/* make timers pending */
-inline_size void
-timers_reify (EV_P)
-{
- EV_FREQUENT_CHECK;
-
- if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
- {
- do
- {
- ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
-
- /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
-
- /* first reschedule or stop timer */
- if (w->repeat)
- {
- ev_at (w) += w->repeat;
- if (ev_at (w) < mn_now)
- ev_at (w) = mn_now;
-
- assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
-
- ANHE_at_cache (timers [HEAP0]);
- downheap (timers, timercnt, HEAP0);
- }
- else
- ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
-
- EV_FREQUENT_CHECK;
- feed_reverse (EV_A_ (W)w);
- }
- while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
-
- feed_reverse_done (EV_A_ EV_TIMER);
- }
-}
-
-#if EV_PERIODIC_ENABLE
-
-inline_speed void
-periodic_recalc (EV_P_ ev_periodic *w)
-{
- /* TODO: use slow but potentially more correct incremental algo, */
- /* also do not rely on ceil */
- ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
-}
-
-/* make periodics pending */
-inline_size void
-periodics_reify (EV_P)
-{
- EV_FREQUENT_CHECK;
-
- while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
- {
- int feed_count = 0;
-
- do
- {
- ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
-
- /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
-
- /* first reschedule or stop timer */
- if (w->reschedule_cb)
- {
- ev_at (w) = w->reschedule_cb (w, ev_rt_now);
-
- assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
-
- ANHE_at_cache (periodics [HEAP0]);
- downheap (periodics, periodiccnt, HEAP0);
- }
- else if (w->interval)
- {
- periodic_recalc (EV_A_ w);
-
- /* if next trigger time is not sufficiently in the future, put it there */
- /* this might happen because of floating point inexactness */
- if (ev_at (w) - ev_rt_now < TIME_EPSILON)
- {
- ev_at (w) += w->interval;
-
- /* if interval is unreasonably low we might still have a time in the past */
- /* so correct this. this will make the periodic very inexact, but the user */
- /* has effectively asked to get triggered more often than possible */
- if (ev_at (w) < ev_rt_now)
- ev_at (w) = ev_rt_now;
- }
-
- ANHE_at_cache (periodics [HEAP0]);
- downheap (periodics, periodiccnt, HEAP0);
- }
- else
- ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
-
- EV_FREQUENT_CHECK;
- feed_reverse (EV_A_ (W)w);
- }
- while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
-
- feed_reverse_done (EV_A_ EV_PERIODIC);
- }
-}
-
-/* simply recalculate all periodics */
-/* TODO: maybe ensure that at least one event happens when jumping forward? */
-static void noinline
-periodics_reschedule (EV_P)
-{
- int i;
-
- /* adjust periodics after time jump */
- for (i = HEAP0; i < periodiccnt + HEAP0; ++i)
- {
- ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
-
- if (w->reschedule_cb)
- ev_at (w) = w->reschedule_cb (w, ev_rt_now);
- else if (w->interval)
- periodic_recalc (EV_A_ w);
-
- ANHE_at_cache (periodics [i]);
- }
-
- reheap (periodics, periodiccnt);
-}
-#endif
-
-/* adjust all timers by a given offset */
-static void noinline
-timers_reschedule (EV_P_ ev_tstamp adjust)
-{
- int i;
-
- for (i = 0; i < timercnt; ++i)
- {
- ANHE *he = timers + i + HEAP0;
- ANHE_w (*he)->at += adjust;
- ANHE_at_cache (*he);
- }
-}
-
-/* fetch new monotonic and realtime times from the kernel */
-/* also detect if there was a timejump, and act accordingly */
-inline_speed void
-time_update (EV_P_ ev_tstamp max_block)
-{
-#if EV_USE_MONOTONIC
- if (expect_true (have_monotonic))
- {
- int i;
- ev_tstamp odiff = rtmn_diff;
-
- mn_now = get_clock ();
-
- /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
- /* interpolate in the meantime */
- if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
- {
- ev_rt_now = rtmn_diff + mn_now;
- return;
- }
-
- now_floor = mn_now;
- ev_rt_now = ev_time ();
-
- /* loop a few times, before making important decisions.
- * on the choice of "4": one iteration isn't enough,
- * in case we get preempted during the calls to
- * ev_time and get_clock. a second call is almost guaranteed
- * to succeed in that case, though. and looping a few more times
- * doesn't hurt either as we only do this on time-jumps or
- * in the unlikely event of having been preempted here.
- */
- for (i = 4; --i; )
- {
- rtmn_diff = ev_rt_now - mn_now;
-
- if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP))
- return; /* all is well */
-
- ev_rt_now = ev_time ();
- mn_now = get_clock ();
- now_floor = mn_now;
- }
-
- /* no timer adjustment, as the monotonic clock doesn't jump */
- /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
-# if EV_PERIODIC_ENABLE
- periodics_reschedule (EV_A);
-# endif
- }
- else
-#endif
- {
- ev_rt_now = ev_time ();
-
- if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
- {
- /* adjust timers. this is easy, as the offset is the same for all of them */
- timers_reschedule (EV_A_ ev_rt_now - mn_now);
-#if EV_PERIODIC_ENABLE
- periodics_reschedule (EV_A);
-#endif
- }
-
- mn_now = ev_rt_now;
- }
-}
-
-void
-ev_run (EV_P_ int flags)
-{
-#if EV_FEATURE_API
- ++loop_depth;
-#endif
-
- assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
-
- loop_done = EVBREAK_CANCEL;
-
- EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
-
- do
- {
-#if EV_VERIFY >= 2
- ev_verify (EV_A);
-#endif
-
-#ifndef _WIN32
- if (expect_false (curpid)) /* penalise the forking check even more */
- if (expect_false (getpid () != curpid))
- {
- curpid = getpid ();
- postfork = 1;
- }
-#endif
-
-#if EV_FORK_ENABLE
- /* we might have forked, so queue fork handlers */
- if (expect_false (postfork))
- if (forkcnt)
- {
- queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
- EV_INVOKE_PENDING;
- }
-#endif
-
-#if EV_PREPARE_ENABLE
- /* queue prepare watchers (and execute them) */
- if (expect_false (preparecnt))
- {
- queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
- EV_INVOKE_PENDING;
- }
-#endif
-
- if (expect_false (loop_done))
- break;
-
- /* we might have forked, so reify kernel state if necessary */
- if (expect_false (postfork))
- loop_fork (EV_A);
-
- /* update fd-related kernel structures */
- fd_reify (EV_A);
-
- /* calculate blocking time */
- {
- ev_tstamp waittime = 0.;
- ev_tstamp sleeptime = 0.;
-
- /* remember old timestamp for io_blocktime calculation */
- ev_tstamp prev_mn_now = mn_now;
-
- /* update time to cancel out callback processing overhead */
- time_update (EV_A_ 1e100);
-
- if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
- {
- waittime = MAX_BLOCKTIME;
-
- if (timercnt)
- {
- ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
- if (waittime > to) waittime = to;
- }
-
-#if EV_PERIODIC_ENABLE
- if (periodiccnt)
- {
- ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
- if (waittime > to) waittime = to;
- }
-#endif
-
- /* don't let timeouts decrease the waittime below timeout_blocktime */
- if (expect_false (waittime < timeout_blocktime))
- waittime = timeout_blocktime;
-
- /* extra check because io_blocktime is commonly 0 */
- if (expect_false (io_blocktime))
- {
- sleeptime = io_blocktime - (mn_now - prev_mn_now);
-
- if (sleeptime > waittime - backend_fudge)
- sleeptime = waittime - backend_fudge;
-
- if (expect_true (sleeptime > 0.))
- {
- ev_sleep (sleeptime);
- waittime -= sleeptime;
- }
- }
- }
-
-#if EV_FEATURE_API
- ++loop_count;
-#endif
- assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
- backend_poll (EV_A_ waittime);
- assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
-
- /* update ev_rt_now, do magic */
- time_update (EV_A_ waittime + sleeptime);
- }
-
- /* queue pending timers and reschedule them */
- timers_reify (EV_A); /* relative timers called last */
-#if EV_PERIODIC_ENABLE
- periodics_reify (EV_A); /* absolute timers called first */
-#endif
-
-#if EV_IDLE_ENABLE
- /* queue idle watchers unless other events are pending */
- idle_reify (EV_A);
-#endif
-
-#if EV_CHECK_ENABLE
- /* queue check watchers, to be executed first */
- if (expect_false (checkcnt))
- queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
-#endif
-
- EV_INVOKE_PENDING;
- }
- while (expect_true (
- activecnt
- && !loop_done
- && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
- ));
-
- if (loop_done == EVBREAK_ONE)
- loop_done = EVBREAK_CANCEL;
-
-#if EV_FEATURE_API
- --loop_depth;
-#endif
-}
-
-void
-ev_break (EV_P_ int how)
-{
- loop_done = how;
-}
-
-void
-ev_ref (EV_P)
-{
- ++activecnt;
-}
-
-void
-ev_unref (EV_P)
-{
- --activecnt;
-}
-
-void
-ev_now_update (EV_P)
-{
- time_update (EV_A_ 1e100);
-}
-
-void
-ev_suspend (EV_P)
-{
- ev_now_update (EV_A);
-}
-
-void
-ev_resume (EV_P)
-{
- ev_tstamp mn_prev = mn_now;
-
- ev_now_update (EV_A);
- timers_reschedule (EV_A_ mn_now - mn_prev);
-#if EV_PERIODIC_ENABLE
- /* TODO: really do this? */
- periodics_reschedule (EV_A);
-#endif
-}
-
-/*****************************************************************************/
-/* singly-linked list management, used when the expected list length is short */
-
-inline_size void
-wlist_add (WL *head, WL elem)
-{
- elem->next = *head;
- *head = elem;
-}
-
-inline_size void
-wlist_del (WL *head, WL elem)
-{
- while (*head)
- {
- if (expect_true (*head == elem))
- {
- *head = elem->next;
- break;
- }
-
- head = &(*head)->next;
- }
-}
-
-/* internal, faster, version of ev_clear_pending */
-inline_speed void
-clear_pending (EV_P_ W w)
-{
- if (w->pending)
- {
- pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
- w->pending = 0;
- }
-}
-
-int
-ev_clear_pending (EV_P_ void *w)
-{
- W w_ = (W)w;
- int pending = w_->pending;
-
- if (expect_true (pending))
- {
- ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
- p->w = (W)&pending_w;
- w_->pending = 0;
- return p->events;
- }
- else
- return 0;
-}
-
-inline_size void
-pri_adjust (EV_P_ W w)
-{
- int pri = ev_priority (w);
- pri = pri < EV_MINPRI ? EV_MINPRI : pri;
- pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
- ev_set_priority (w, pri);
-}
-
-inline_speed void
-ev_start (EV_P_ W w, int active)
-{
- pri_adjust (EV_A_ w);
- w->active = active;
- ev_ref (EV_A);
-}
-
-inline_size void
-ev_stop (EV_P_ W w)
-{
- ev_unref (EV_A);
- w->active = 0;
-}
-
-/*****************************************************************************/
-
-void noinline
-ev_io_start (EV_P_ ev_io *w)
-{
- int fd = w->fd;
-
- if (expect_false (ev_is_active (w)))
- return;
-
- assert (("libev: ev_io_start called with negative fd", fd >= 0));
- assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, 1);
- array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
- wlist_add (&anfds[fd].head, (WL)w);
-
- fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
- w->events &= ~EV__IOFDSET;
-
- EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_io_stop (EV_P_ ev_io *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
-
- EV_FREQUENT_CHECK;
-
- wlist_del (&anfds[w->fd].head, (WL)w);
- ev_stop (EV_A_ (W)w);
-
- fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
-
- EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_timer_start (EV_P_ ev_timer *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- ev_at (w) += mn_now;
-
- assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
-
- EV_FREQUENT_CHECK;
-
- ++timercnt;
- ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
- array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
- ANHE_w (timers [ev_active (w)]) = (WT)w;
- ANHE_at_cache (timers [ev_active (w)]);
- upheap (timers, ev_active (w));
-
- EV_FREQUENT_CHECK;
-
- /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
-}
-
-void noinline
-ev_timer_stop (EV_P_ ev_timer *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
-
- --timercnt;
-
- if (expect_true (active < timercnt + HEAP0))
- {
- timers [active] = timers [timercnt + HEAP0];
- adjustheap (timers, timercnt, active);
- }
- }
-
- ev_at (w) -= mn_now;
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_timer_again (EV_P_ ev_timer *w)
-{
- EV_FREQUENT_CHECK;
-
- if (ev_is_active (w))
- {
- if (w->repeat)
- {
- ev_at (w) = mn_now + w->repeat;
- ANHE_at_cache (timers [ev_active (w)]);
- adjustheap (timers, timercnt, ev_active (w));
- }
- else
- ev_timer_stop (EV_A_ w);
- }
- else if (w->repeat)
- {
- ev_at (w) = w->repeat;
- ev_timer_start (EV_A_ w);
- }
-
- EV_FREQUENT_CHECK;
-}
-
-ev_tstamp
-ev_timer_remaining (EV_P_ ev_timer *w)
-{
- return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
-}
-
-#if EV_PERIODIC_ENABLE
-void noinline
-ev_periodic_start (EV_P_ ev_periodic *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- if (w->reschedule_cb)
- ev_at (w) = w->reschedule_cb (w, ev_rt_now);
- else if (w->interval)
- {
- assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
- periodic_recalc (EV_A_ w);
- }
- else
- ev_at (w) = w->offset;
-
- EV_FREQUENT_CHECK;
-
- ++periodiccnt;
- ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
- array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
- ANHE_w (periodics [ev_active (w)]) = (WT)w;
- ANHE_at_cache (periodics [ev_active (w)]);
- upheap (periodics, ev_active (w));
-
- EV_FREQUENT_CHECK;
-
- /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
-}
-
-void noinline
-ev_periodic_stop (EV_P_ ev_periodic *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
-
- --periodiccnt;
-
- if (expect_true (active < periodiccnt + HEAP0))
- {
- periodics [active] = periodics [periodiccnt + HEAP0];
- adjustheap (periodics, periodiccnt, active);
- }
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_periodic_again (EV_P_ ev_periodic *w)
-{
- /* TODO: use adjustheap and recalculation */
- ev_periodic_stop (EV_A_ w);
- ev_periodic_start (EV_A_ w);
-}
-#endif
-
-#ifndef SA_RESTART
-# define SA_RESTART 0
-#endif
-
-#if EV_SIGNAL_ENABLE
-
-void noinline
-ev_signal_start (EV_P_ ev_signal *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
-
-#if EV_MULTIPLICITY
- assert (("libev: a signal must not be attached to two different loops",
- !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
-
- signals [w->signum - 1].loop = EV_A;
-#endif
-
- EV_FREQUENT_CHECK;
-
-#if EV_USE_SIGNALFD
- if (sigfd == -2)
- {
- sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
- if (sigfd < 0 && errno == EINVAL)
- sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
-
- if (sigfd >= 0)
- {
- fd_intern (sigfd); /* doing it twice will not hurt */
-
- sigemptyset (&sigfd_set);
-
- ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
- ev_set_priority (&sigfd_w, EV_MAXPRI);
- ev_io_start (EV_A_ &sigfd_w);
- ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
- }
- }
-
- if (sigfd >= 0)
- {
- /* TODO: check .head */
- sigaddset (&sigfd_set, w->signum);
- sigprocmask (SIG_BLOCK, &sigfd_set, 0);
-
- signalfd (sigfd, &sigfd_set, 0);
- }
-#endif
-
- ev_start (EV_A_ (W)w, 1);
- wlist_add (&signals [w->signum - 1].head, (WL)w);
-
- if (!((WL)w)->next)
-# if EV_USE_SIGNALFD
- if (sigfd < 0) /*TODO*/
-# endif
- {
-# ifdef _WIN32
- evpipe_init (EV_A);
-
- signal (w->signum, ev_sighandler);
-# else
- struct sigaction sa;
-
- evpipe_init (EV_A);
-
- sa.sa_handler = ev_sighandler;
- sigfillset (&sa.sa_mask);
- sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
- sigaction (w->signum, &sa, 0);
-
- if (origflags & EVFLAG_NOSIGMASK)
- {
- sigemptyset (&sa.sa_mask);
- sigaddset (&sa.sa_mask, w->signum);
- sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
- }
-#endif
- }
-
- EV_FREQUENT_CHECK;
-}
-
-void noinline
-ev_signal_stop (EV_P_ ev_signal *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- wlist_del (&signals [w->signum - 1].head, (WL)w);
- ev_stop (EV_A_ (W)w);
-
- if (!signals [w->signum - 1].head)
- {
-#if EV_MULTIPLICITY
- signals [w->signum - 1].loop = 0; /* unattach from signal */
-#endif
-#if EV_USE_SIGNALFD
- if (sigfd >= 0)
- {
- sigset_t ss;
-
- sigemptyset (&ss);
- sigaddset (&ss, w->signum);
- sigdelset (&sigfd_set, w->signum);
-
- signalfd (sigfd, &sigfd_set, 0);
- sigprocmask (SIG_UNBLOCK, &ss, 0);
- }
- else
-#endif
- signal (w->signum, SIG_DFL);
- }
-
- EV_FREQUENT_CHECK;
-}
-
-#endif
-
-#if EV_CHILD_ENABLE
-
-void
-ev_child_start (EV_P_ ev_child *w)
-{
-#if EV_MULTIPLICITY
- assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
-#endif
- if (expect_false (ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, 1);
- wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_child_stop (EV_P_ ev_child *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-
-#endif
-
-#if EV_STAT_ENABLE
-
-# ifdef _WIN32
-# undef lstat
-# define lstat(a,b) _stati64 (a,b)
-# endif
-
-#define DEF_STAT_INTERVAL 5.0074891
-#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
-#define MIN_STAT_INTERVAL 0.1074891
-
-static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
-
-#if EV_USE_INOTIFY
-
-/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
-# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
-
-static void noinline
-infy_add (EV_P_ ev_stat *w)
-{
- w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
-
- if (w->wd >= 0)
- {
- struct statfs sfs;
-
- /* now local changes will be tracked by inotify, but remote changes won't */
- /* unless the filesystem is known to be local, we therefore still poll */
- /* also do poll on <2.6.25, but with normal frequency */
-
- if (!fs_2625)
- w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
- else if (!statfs (w->path, &sfs)
- && (sfs.f_type == 0x1373 /* devfs */
- || sfs.f_type == 0xEF53 /* ext2/3 */
- || sfs.f_type == 0x3153464a /* jfs */
- || sfs.f_type == 0x52654973 /* reiser3 */
- || sfs.f_type == 0x01021994 /* tempfs */
- || sfs.f_type == 0x58465342 /* xfs */))
- w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
- else
- w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
- }
- else
- {
- /* can't use inotify, continue to stat */
- w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
-
- /* if path is not there, monitor some parent directory for speedup hints */
- /* note that exceeding the hardcoded path limit is not a correctness issue, */
- /* but an efficiency issue only */
- if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
- {
- char path [4096];
- strcpy (path, w->path);
-
- do
- {
- int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
- | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
-
- char *pend = strrchr (path, '/');
-
- if (!pend || pend == path)
- break;
-
- *pend = 0;
- w->wd = inotify_add_watch (fs_fd, path, mask);
- }
- while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
- }
- }
-
- if (w->wd >= 0)
- wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
-
- /* now re-arm timer, if required */
- if (ev_is_active (&w->timer)) ev_ref (EV_A);
- ev_timer_again (EV_A_ &w->timer);
- if (ev_is_active (&w->timer)) ev_unref (EV_A);
-}
-
-static void noinline
-infy_del (EV_P_ ev_stat *w)
-{
- int slot;
- int wd = w->wd;
-
- if (wd < 0)
- return;
-
- w->wd = -2;
- slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
- wlist_del (&fs_hash [slot].head, (WL)w);
-
- /* remove this watcher, if others are watching it, they will rearm */
- inotify_rm_watch (fs_fd, wd);
-}
-
-static void noinline
-infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
-{
- if (slot < 0)
- /* overflow, need to check for all hash slots */
- for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
- infy_wd (EV_A_ slot, wd, ev);
- else
- {
- WL w_;
-
- for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
- {
- ev_stat *w = (ev_stat *)w_;
- w_ = w_->next; /* lets us remove this watcher and all before it */
-
- if (w->wd == wd || wd == -1)
- {
- if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
- {
- wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
- w->wd = -1;
- infy_add (EV_A_ w); /* re-add, no matter what */
- }
-
- stat_timer_cb (EV_A_ &w->timer, 0);
- }
- }
- }
-}
-
-static void
-infy_cb (EV_P_ ev_io *w, int revents)
-{
- char buf [EV_INOTIFY_BUFSIZE];
- int ofs;
- int len = read (fs_fd, buf, sizeof (buf));
-
- for (ofs = 0; ofs < len; )
- {
- struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
- infy_wd (EV_A_ ev->wd, ev->wd, ev);
- ofs += sizeof (struct inotify_event) + ev->len;
- }
-}
-
-inline_size void
-ev_check_2625 (EV_P)
-{
- /* kernels < 2.6.25 are borked
- * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
- */
- if (ev_linux_version () < 0x020619)
- return;
-
- fs_2625 = 1;
-}
-
-inline_size int
-infy_newfd (void)
-{
-#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
- int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
- if (fd >= 0)
- return fd;
-#endif
- return inotify_init ();
-}
-
-inline_size void
-infy_init (EV_P)
-{
- if (fs_fd != -2)
- return;
-
- fs_fd = -1;
-
- ev_check_2625 (EV_A);
-
- fs_fd = infy_newfd ();
-
- if (fs_fd >= 0)
- {
- fd_intern (fs_fd);
- ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
- ev_set_priority (&fs_w, EV_MAXPRI);
- ev_io_start (EV_A_ &fs_w);
- ev_unref (EV_A);
- }
-}
-
-inline_size void
-infy_fork (EV_P)
-{
- int slot;
-
- if (fs_fd < 0)
- return;
-
- ev_ref (EV_A);
- ev_io_stop (EV_A_ &fs_w);
- close (fs_fd);
- fs_fd = infy_newfd ();
-
- if (fs_fd >= 0)
- {
- fd_intern (fs_fd);
- ev_io_set (&fs_w, fs_fd, EV_READ);
- ev_io_start (EV_A_ &fs_w);
- ev_unref (EV_A);
- }
-
- for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
- {
- WL w_ = fs_hash [slot].head;
- fs_hash [slot].head = 0;
-
- while (w_)
- {
- ev_stat *w = (ev_stat *)w_;
- w_ = w_->next; /* lets us add this watcher */
-
- w->wd = -1;
-
- if (fs_fd >= 0)
- infy_add (EV_A_ w); /* re-add, no matter what */
- else
- {
- w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
- if (ev_is_active (&w->timer)) ev_ref (EV_A);
- ev_timer_again (EV_A_ &w->timer);
- if (ev_is_active (&w->timer)) ev_unref (EV_A);
- }
- }
- }
-}
-
-#endif
-
-#ifdef _WIN32
-# define EV_LSTAT(p,b) _stati64 (p, b)
-#else
-# define EV_LSTAT(p,b) lstat (p, b)
-#endif
-
-void
-ev_stat_stat (EV_P_ ev_stat *w)
-{
- if (lstat (w->path, &w->attr) < 0)
- w->attr.st_nlink = 0;
- else if (!w->attr.st_nlink)
- w->attr.st_nlink = 1;
-}
-
-static void noinline
-stat_timer_cb (EV_P_ ev_timer *w_, int revents)
-{
- ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
-
- ev_statdata prev = w->attr;
- ev_stat_stat (EV_A_ w);
-
- /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
- if (
- prev.st_dev != w->attr.st_dev
- || prev.st_ino != w->attr.st_ino
- || prev.st_mode != w->attr.st_mode
- || prev.st_nlink != w->attr.st_nlink
- || prev.st_uid != w->attr.st_uid
- || prev.st_gid != w->attr.st_gid
- || prev.st_rdev != w->attr.st_rdev
- || prev.st_size != w->attr.st_size
- || prev.st_atime != w->attr.st_atime
- || prev.st_mtime != w->attr.st_mtime
- || prev.st_ctime != w->attr.st_ctime
- ) {
- /* we only update w->prev on actual differences */
- /* in case we test more often than invoke the callback, */
- /* to ensure that prev is always different to attr */
- w->prev = prev;
-
- #if EV_USE_INOTIFY
- if (fs_fd >= 0)
- {
- infy_del (EV_A_ w);
- infy_add (EV_A_ w);
- ev_stat_stat (EV_A_ w); /* avoid race... */
- }
- #endif
-
- ev_feed_event (EV_A_ w, EV_STAT);
- }
-}
-
-void
-ev_stat_start (EV_P_ ev_stat *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- ev_stat_stat (EV_A_ w);
-
- if (w->interval < MIN_STAT_INTERVAL && w->interval)
- w->interval = MIN_STAT_INTERVAL;
-
- ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
- ev_set_priority (&w->timer, ev_priority (w));
-
-#if EV_USE_INOTIFY
- infy_init (EV_A);
-
- if (fs_fd >= 0)
- infy_add (EV_A_ w);
- else
-#endif
- {
- ev_timer_again (EV_A_ &w->timer);
- ev_unref (EV_A);
- }
-
- ev_start (EV_A_ (W)w, 1);
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_stat_stop (EV_P_ ev_stat *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
-#if EV_USE_INOTIFY
- infy_del (EV_A_ w);
-#endif
-
- if (ev_is_active (&w->timer))
- {
- ev_ref (EV_A);
- ev_timer_stop (EV_A_ &w->timer);
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_IDLE_ENABLE
-void
-ev_idle_start (EV_P_ ev_idle *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- pri_adjust (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ++idlecnt [ABSPRI (w)];
-
- ++idleall;
- ev_start (EV_A_ (W)w, active);
-
- array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
- idles [ABSPRI (w)][active - 1] = w;
- }
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_idle_stop (EV_P_ ev_idle *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
- ev_active (idles [ABSPRI (w)][active - 1]) = active;
-
- ev_stop (EV_A_ (W)w);
- --idleall;
- }
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_PREPARE_ENABLE
-void
-ev_prepare_start (EV_P_ ev_prepare *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, ++preparecnt);
- array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
- prepares [preparecnt - 1] = w;
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_prepare_stop (EV_P_ ev_prepare *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- prepares [active - 1] = prepares [--preparecnt];
- ev_active (prepares [active - 1]) = active;
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_CHECK_ENABLE
-void
-ev_check_start (EV_P_ ev_check *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, ++checkcnt);
- array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
- checks [checkcnt - 1] = w;
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_check_stop (EV_P_ ev_check *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- checks [active - 1] = checks [--checkcnt];
- ev_active (checks [active - 1]) = active;
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_EMBED_ENABLE
-void noinline
-ev_embed_sweep (EV_P_ ev_embed *w)
-{
- ev_run (w->other, EVRUN_NOWAIT);
-}
-
-static void
-embed_io_cb (EV_P_ ev_io *io, int revents)
-{
- ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
-
- if (ev_cb (w))
- ev_feed_event (EV_A_ (W)w, EV_EMBED);
- else
- ev_run (w->other, EVRUN_NOWAIT);
-}
-
-static void
-embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
-{
- ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
-
- {
- EV_P = w->other;
-
- while (fdchangecnt)
- {
- fd_reify (EV_A);
- ev_run (EV_A_ EVRUN_NOWAIT);
- }
- }
-}
-
-static void
-embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
-{
- ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
-
- ev_embed_stop (EV_A_ w);
-
- {
- EV_P = w->other;
-
- ev_loop_fork (EV_A);
- ev_run (EV_A_ EVRUN_NOWAIT);
- }
-
- ev_embed_start (EV_A_ w);
-}
-
-#if 0
-static void
-embed_idle_cb (EV_P_ ev_idle *idle, int revents)
-{
- ev_idle_stop (EV_A_ idle);
-}
-#endif
-
-void
-ev_embed_start (EV_P_ ev_embed *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- {
- EV_P = w->other;
- assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
- ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
- }
-
- EV_FREQUENT_CHECK;
-
- ev_set_priority (&w->io, ev_priority (w));
- ev_io_start (EV_A_ &w->io);
-
- ev_prepare_init (&w->prepare, embed_prepare_cb);
- ev_set_priority (&w->prepare, EV_MINPRI);
- ev_prepare_start (EV_A_ &w->prepare);
-
- ev_fork_init (&w->fork, embed_fork_cb);
- ev_fork_start (EV_A_ &w->fork);
-
- /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
-
- ev_start (EV_A_ (W)w, 1);
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_embed_stop (EV_P_ ev_embed *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- ev_io_stop (EV_A_ &w->io);
- ev_prepare_stop (EV_A_ &w->prepare);
- ev_fork_stop (EV_A_ &w->fork);
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_FORK_ENABLE
-void
-ev_fork_start (EV_P_ ev_fork *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, ++forkcnt);
- array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
- forks [forkcnt - 1] = w;
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_fork_stop (EV_P_ ev_fork *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- forks [active - 1] = forks [--forkcnt];
- ev_active (forks [active - 1]) = active;
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_CLEANUP_ENABLE
-void
-ev_cleanup_start (EV_P_ ev_cleanup *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, ++cleanupcnt);
- array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
- cleanups [cleanupcnt - 1] = w;
-
- /* cleanup watchers should never keep a refcount on the loop */
- ev_unref (EV_A);
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_cleanup_stop (EV_P_ ev_cleanup *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
- ev_ref (EV_A);
-
- {
- int active = ev_active (w);
-
- cleanups [active - 1] = cleanups [--cleanupcnt];
- ev_active (cleanups [active - 1]) = active;
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-#endif
-
-#if EV_ASYNC_ENABLE
-void
-ev_async_start (EV_P_ ev_async *w)
-{
- if (expect_false (ev_is_active (w)))
- return;
-
- w->sent = 0;
-
- evpipe_init (EV_A);
-
- EV_FREQUENT_CHECK;
-
- ev_start (EV_A_ (W)w, ++asynccnt);
- array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
- asyncs [asynccnt - 1] = w;
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_async_stop (EV_P_ ev_async *w)
-{
- clear_pending (EV_A_ (W)w);
- if (expect_false (!ev_is_active (w)))
- return;
-
- EV_FREQUENT_CHECK;
-
- {
- int active = ev_active (w);
-
- asyncs [active - 1] = asyncs [--asynccnt];
- ev_active (asyncs [active - 1]) = active;
- }
-
- ev_stop (EV_A_ (W)w);
-
- EV_FREQUENT_CHECK;
-}
-
-void
-ev_async_send (EV_P_ ev_async *w)
-{
- w->sent = 1;
- evpipe_write (EV_A_ &async_pending);
-}
-#endif
-
-/*****************************************************************************/
-
-struct ev_once
-{
- ev_io io;
- ev_timer to;
- void (*cb)(int revents, void *arg);
- void *arg;
-};
-
-static void
-once_cb (EV_P_ struct ev_once *once, int revents)
-{
- void (*cb)(int revents, void *arg) = once->cb;
- void *arg = once->arg;
-
- ev_io_stop (EV_A_ &once->io);
- ev_timer_stop (EV_A_ &once->to);
- ev_free (once);
-
- cb (revents, arg);
-}
-
-static void
-once_cb_io (EV_P_ ev_io *w, int revents)
-{
- struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
-
- once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
-}
-
-static void
-once_cb_to (EV_P_ ev_timer *w, int revents)
-{
- struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
-
- once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
-}
-
-void
-ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
-{
- struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
-
- if (expect_false (!once))
- {
- cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
- return;
- }
-
- once->cb = cb;
- once->arg = arg;
-
- ev_init (&once->io, once_cb_io);
- if (fd >= 0)
- {
- ev_io_set (&once->io, fd, events);
- ev_io_start (EV_A_ &once->io);
- }
-
- ev_init (&once->to, once_cb_to);
- if (timeout >= 0.)
- {
- ev_timer_set (&once->to, timeout, 0.);
- ev_timer_start (EV_A_ &once->to);
- }
-}
-
-/*****************************************************************************/
-
-#if EV_WALK_ENABLE
-void
-ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
-{
- int i, j;
- ev_watcher_list *wl, *wn;
-
- if (types & (EV_IO | EV_EMBED))
- for (i = 0; i < anfdmax; ++i)
- for (wl = anfds [i].head; wl; )
- {
- wn = wl->next;
-
-#if EV_EMBED_ENABLE
- if (ev_cb ((ev_io *)wl) == embed_io_cb)
- {
- if (types & EV_EMBED)
- cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
- }
- else
-#endif
-#if EV_USE_INOTIFY
- if (ev_cb ((ev_io *)wl) == infy_cb)
- ;
- else
-#endif
- if ((ev_io *)wl != &pipe_w)
- if (types & EV_IO)
- cb (EV_A_ EV_IO, wl);
-
- wl = wn;
- }
-
- if (types & (EV_TIMER | EV_STAT))
- for (i = timercnt + HEAP0; i-- > HEAP0; )
-#if EV_STAT_ENABLE
- /*TODO: timer is not always active*/
- if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
- {
- if (types & EV_STAT)
- cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
- }
- else
-#endif
- if (types & EV_TIMER)
- cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
-
-#if EV_PERIODIC_ENABLE
- if (types & EV_PERIODIC)
- for (i = periodiccnt + HEAP0; i-- > HEAP0; )
- cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
-#endif
-
-#if EV_IDLE_ENABLE
- if (types & EV_IDLE)
- for (j = NUMPRI; i--; )
- for (i = idlecnt [j]; i--; )
- cb (EV_A_ EV_IDLE, idles [j][i]);
-#endif
-
-#if EV_FORK_ENABLE
- if (types & EV_FORK)
- for (i = forkcnt; i--; )
- if (ev_cb (forks [i]) != embed_fork_cb)
- cb (EV_A_ EV_FORK, forks [i]);
-#endif
-
-#if EV_ASYNC_ENABLE
- if (types & EV_ASYNC)
- for (i = asynccnt; i--; )
- cb (EV_A_ EV_ASYNC, asyncs [i]);
-#endif
-
-#if EV_PREPARE_ENABLE
- if (types & EV_PREPARE)
- for (i = preparecnt; i--; )
-# if EV_EMBED_ENABLE
- if (ev_cb (prepares [i]) != embed_prepare_cb)
-# endif
- cb (EV_A_ EV_PREPARE, prepares [i]);
-#endif
-
-#if EV_CHECK_ENABLE
- if (types & EV_CHECK)
- for (i = checkcnt; i--; )
- cb (EV_A_ EV_CHECK, checks [i]);
-#endif
-
-#if EV_SIGNAL_ENABLE
- if (types & EV_SIGNAL)
- for (i = 0; i < EV_NSIG - 1; ++i)
- for (wl = signals [i].head; wl; )
- {
- wn = wl->next;
- cb (EV_A_ EV_SIGNAL, wl);
- wl = wn;
- }
-#endif
-
-#if EV_CHILD_ENABLE
- if (types & EV_CHILD)
- for (i = (EV_PID_HASHSIZE); i--; )
- for (wl = childs [i]; wl; )
- {
- wn = wl->next;
- cb (EV_A_ EV_CHILD, wl);
- wl = wn;
- }
-#endif
-/* EV_STAT 0x00001000 /* stat data changed */
-/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
-}
-#endif
-
-#if EV_MULTIPLICITY
- #include "ev_wrap.h"
-#endif
-
-EV_CPP(})
-
+++ /dev/null
-/*
- * libev native API header
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EV_H_
-#define EV_H_
-
-#ifdef __cplusplus
-# define EV_CPP(x) x
-#else
-# define EV_CPP(x)
-#endif
-
-EV_CPP(extern "C" {)
-
-/*****************************************************************************/
-
-/* pre-4.0 compatibility */
-#ifndef EV_COMPAT3
-# define EV_COMPAT3 1
-#endif
-
-#ifndef EV_FEATURES
-# define EV_FEATURES 0x7f
-#endif
-
-#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
-#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
-#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
-#define EV_FEATURE_API ((EV_FEATURES) & 8)
-#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
-#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
-#define EV_FEATURE_OS ((EV_FEATURES) & 64)
-
-/* these priorities are inclusive, higher priorities will be invoked earlier */
-#ifndef EV_MINPRI
-# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
-#endif
-#ifndef EV_MAXPRI
-# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
-#endif
-
-#ifndef EV_MULTIPLICITY
-# define EV_MULTIPLICITY EV_FEATURE_CONFIG
-#endif
-
-#ifndef EV_PERIODIC_ENABLE
-# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_STAT_ENABLE
-# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_PREPARE_ENABLE
-# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_CHECK_ENABLE
-# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_IDLE_ENABLE
-# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_FORK_ENABLE
-# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_CLEANUP_ENABLE
-# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_SIGNAL_ENABLE
-# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_CHILD_ENABLE
-# ifdef _WIN32
-# define EV_CHILD_ENABLE 0
-# else
-# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
-#endif
-#endif
-
-#ifndef EV_ASYNC_ENABLE
-# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_EMBED_ENABLE
-# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
-#endif
-
-#ifndef EV_WALK_ENABLE
-# define EV_WALK_ENABLE 0 /* not yet */
-#endif
-
-/*****************************************************************************/
-
-#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
-# undef EV_SIGNAL_ENABLE
-# define EV_SIGNAL_ENABLE 1
-#endif
-
-/*****************************************************************************/
-
-typedef double ev_tstamp;
-
-#ifndef EV_ATOMIC_T
-# include <signal.h>
-# define EV_ATOMIC_T sig_atomic_t volatile
-#endif
-
-#if EV_STAT_ENABLE
-# ifdef _WIN32
-# include <time.h>
-# include <sys/types.h>
-# endif
-# include <sys/stat.h>
-#endif
-
-/* support multiple event loops? */
-#if EV_MULTIPLICITY
-struct ev_loop;
-# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
-# define EV_P_ EV_P, /* a loop as first of multiple parameters */
-# define EV_A loop /* a loop as sole argument to a function call */
-# define EV_A_ EV_A, /* a loop as first of multiple arguments */
-# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
-# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
-# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
-# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
-#else
-# define EV_P void
-# define EV_P_
-# define EV_A
-# define EV_A_
-# define EV_DEFAULT
-# define EV_DEFAULT_
-# define EV_DEFAULT_UC
-# define EV_DEFAULT_UC_
-# undef EV_EMBED_ENABLE
-#endif
-
-/* EV_INLINE is used for functions in header files */
-#if __STDC_VERSION__ >= 199901L && __GNUC__ >= 3
-# define EV_INLINE static inline
-#else
-# define EV_INLINE static
-#endif
-
-/* EV_PROTOTYPES can be used to switch of prototype declarations */
-#ifndef EV_PROTOTYPES
-# define EV_PROTOTYPES 1
-#endif
-
-/*****************************************************************************/
-
-#define EV_VERSION_MAJOR 4
-#define EV_VERSION_MINOR 4
-
-/* eventmask, revents, events... */
-enum {
- EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */
- EV_NONE = 0x00, /* no events */
- EV_READ = 0x01, /* ev_io detected read will not block */
- EV_WRITE = 0x02, /* ev_io detected write will not block */
- EV__IOFDSET = 0x80, /* internal use only */
- EV_IO = EV_READ, /* alias for type-detection */
- EV_TIMER = 0x00000100, /* timer timed out */
-#if EV_COMPAT3
- EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
-#endif
- EV_PERIODIC = 0x00000200, /* periodic timer timed out */
- EV_SIGNAL = 0x00000400, /* signal was received */
- EV_CHILD = 0x00000800, /* child/pid had status change */
- EV_STAT = 0x00001000, /* stat data changed */
- EV_IDLE = 0x00002000, /* event loop is idling */
- EV_PREPARE = 0x00004000, /* event loop about to poll */
- EV_CHECK = 0x00008000, /* event loop finished poll */
- EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
- EV_FORK = 0x00020000, /* event loop resumed in child */
- EV_CLEANUP = 0x00040000, /* event loop resumed in child */
- EV_ASYNC = 0x00080000, /* async intra-loop signal */
- EV_CUSTOM = 0x01000000, /* for use by user code */
- EV_ERROR = 0x80000000 /* sent when an error occurs */
-};
-
-/* can be used to add custom fields to all watchers, while losing binary compatibility */
-#ifndef EV_COMMON
-# define EV_COMMON void *data;
-#endif
-
-#ifndef EV_CB_DECLARE
-# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
-#endif
-#ifndef EV_CB_INVOKE
-# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
-#endif
-
-/* not official, do not use */
-#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
-
-/*
- * struct member types:
- * private: you may look at them, but not change them,
- * and they might not mean anything to you.
- * ro: can be read anytime, but only changed when the watcher isn't active.
- * rw: can be read and modified anytime, even when the watcher is active.
- *
- * some internal details that might be helpful for debugging:
- *
- * active is either 0, which means the watcher is not active,
- * or the array index of the watcher (periodics, timers)
- * or the array index + 1 (most other watchers)
- * or simply 1 for watchers that aren't in some array.
- * pending is either 0, in which case the watcher isn't,
- * or the array index + 1 in the pendings array.
- */
-
-#if EV_MINPRI == EV_MAXPRI
-# define EV_DECL_PRIORITY
-#elif !defined (EV_DECL_PRIORITY)
-# define EV_DECL_PRIORITY int priority;
-#endif
-
-/* shared by all watchers */
-#define EV_WATCHER(type) \
- int active; /* private */ \
- int pending; /* private */ \
- EV_DECL_PRIORITY /* private */ \
- EV_COMMON /* rw */ \
- EV_CB_DECLARE (type) /* private */
-
-#define EV_WATCHER_LIST(type) \
- EV_WATCHER (type) \
- struct ev_watcher_list *next; /* private */
-
-#define EV_WATCHER_TIME(type) \
- EV_WATCHER (type) \
- ev_tstamp at; /* private */
-
-/* base class, nothing to see here unless you subclass */
-typedef struct ev_watcher
-{
- EV_WATCHER (ev_watcher)
-} ev_watcher;
-
-/* base class, nothing to see here unless you subclass */
-typedef struct ev_watcher_list
-{
- EV_WATCHER_LIST (ev_watcher_list)
-} ev_watcher_list;
-
-/* base class, nothing to see here unless you subclass */
-typedef struct ev_watcher_time
-{
- EV_WATCHER_TIME (ev_watcher_time)
-} ev_watcher_time;
-
-/* invoked when fd is either EV_READable or EV_WRITEable */
-/* revent EV_READ, EV_WRITE */
-typedef struct ev_io
-{
- EV_WATCHER_LIST (ev_io)
-
- int fd; /* ro */
- int events; /* ro */
-} ev_io;
-
-/* invoked after a specific time, repeatable (based on monotonic clock) */
-/* revent EV_TIMEOUT */
-typedef struct ev_timer
-{
- EV_WATCHER_TIME (ev_timer)
-
- ev_tstamp repeat; /* rw */
-} ev_timer;
-
-/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
-/* revent EV_PERIODIC */
-typedef struct ev_periodic
-{
- EV_WATCHER_TIME (ev_periodic)
-
- ev_tstamp offset; /* rw */
- ev_tstamp interval; /* rw */
- ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
-} ev_periodic;
-
-/* invoked when the given signal has been received */
-/* revent EV_SIGNAL */
-typedef struct ev_signal
-{
- EV_WATCHER_LIST (ev_signal)
-
- int signum; /* ro */
-} ev_signal;
-
-/* invoked when sigchld is received and waitpid indicates the given pid */
-/* revent EV_CHILD */
-/* does not support priorities */
-typedef struct ev_child
-{
- EV_WATCHER_LIST (ev_child)
-
- int flags; /* private */
- int pid; /* ro */
- int rpid; /* rw, holds the received pid */
- int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
-} ev_child;
-
-#if EV_STAT_ENABLE
-/* st_nlink = 0 means missing file or other error */
-# ifdef _WIN32
-typedef struct _stati64 ev_statdata;
-# else
-typedef struct stat ev_statdata;
-# endif
-
-/* invoked each time the stat data changes for a given path */
-/* revent EV_STAT */
-typedef struct ev_stat
-{
- EV_WATCHER_LIST (ev_stat)
-
- ev_timer timer; /* private */
- ev_tstamp interval; /* ro */
- const char *path; /* ro */
- ev_statdata prev; /* ro */
- ev_statdata attr; /* ro */
-
- int wd; /* wd for inotify, fd for kqueue */
-} ev_stat;
-#endif
-
-#if EV_IDLE_ENABLE
-/* invoked when the nothing else needs to be done, keeps the process from blocking */
-/* revent EV_IDLE */
-typedef struct ev_idle
-{
- EV_WATCHER (ev_idle)
-} ev_idle;
-#endif
-
-/* invoked for each run of the mainloop, just before the blocking call */
-/* you can still change events in any way you like */
-/* revent EV_PREPARE */
-typedef struct ev_prepare
-{
- EV_WATCHER (ev_prepare)
-} ev_prepare;
-
-/* invoked for each run of the mainloop, just after the blocking call */
-/* revent EV_CHECK */
-typedef struct ev_check
-{
- EV_WATCHER (ev_check)
-} ev_check;
-
-#if EV_FORK_ENABLE
-/* the callback gets invoked before check in the child process when a fork was detected */
-/* revent EV_FORK */
-typedef struct ev_fork
-{
- EV_WATCHER (ev_fork)
-} ev_fork;
-#endif
-
-#if EV_CLEANUP_ENABLE
-/* is invoked just before the loop gets destroyed */
-/* revent EV_CLEANUP */
-typedef struct ev_cleanup
-{
- EV_WATCHER (ev_cleanup)
-} ev_cleanup;
-#endif
-
-#if EV_EMBED_ENABLE
-/* used to embed an event loop inside another */
-/* the callback gets invoked when the event loop has handled events, and can be 0 */
-typedef struct ev_embed
-{
- EV_WATCHER (ev_embed)
-
- struct ev_loop *other; /* ro */
- ev_io io; /* private */
- ev_prepare prepare; /* private */
- ev_check check; /* unused */
- ev_timer timer; /* unused */
- ev_periodic periodic; /* unused */
- ev_idle idle; /* unused */
- ev_fork fork; /* private */
-#if EV_CLEANUP_ENABLE
- ev_cleanup cleanup; /* unused */
-#endif
-} ev_embed;
-#endif
-
-#if EV_ASYNC_ENABLE
-/* invoked when somebody calls ev_async_send on the watcher */
-/* revent EV_ASYNC */
-typedef struct ev_async
-{
- EV_WATCHER (ev_async)
-
- EV_ATOMIC_T sent; /* private */
-} ev_async;
-
-# define ev_async_pending(w) (+(w)->sent)
-#endif
-
-/* the presence of this union forces similar struct layout */
-union ev_any_watcher
-{
- struct ev_watcher w;
- struct ev_watcher_list wl;
-
- struct ev_io io;
- struct ev_timer timer;
- struct ev_periodic periodic;
- struct ev_signal signal;
- struct ev_child child;
-#if EV_STAT_ENABLE
- struct ev_stat stat;
-#endif
-#if EV_IDLE_ENABLE
- struct ev_idle idle;
-#endif
- struct ev_prepare prepare;
- struct ev_check check;
-#if EV_FORK_ENABLE
- struct ev_fork fork;
-#endif
-#if EV_CLEANUP_ENABLE
- struct ev_cleanup cleanup;
-#endif
-#if EV_EMBED_ENABLE
- struct ev_embed embed;
-#endif
-#if EV_ASYNC_ENABLE
- struct ev_async async;
-#endif
-};
-
-/* flag bits for ev_default_loop and ev_loop_new */
-enum {
- /* the default */
- EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
- /* flag bits */
- EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
- EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
- /* debugging/feature disable */
- EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
-#if EV_COMPAT3
- EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
-#endif
- EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
- EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
-};
-
-/* method bits to be ored together */
-enum {
- EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
- EVBACKEND_POLL = 0x00000002U, /* !win */
- EVBACKEND_EPOLL = 0x00000004U, /* linux */
- EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
- EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
- EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
- EVBACKEND_ALL = 0x0000003FU, /* all known backends */
- EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
-};
-
-#if EV_PROTOTYPES
-int ev_version_major (void);
-int ev_version_minor (void);
-
-unsigned int ev_supported_backends (void);
-unsigned int ev_recommended_backends (void);
-unsigned int ev_embeddable_backends (void);
-
-ev_tstamp ev_time (void);
-void ev_sleep (ev_tstamp delay); /* sleep for a while */
-
-/* Sets the allocation function to use, works like realloc.
- * It is used to allocate and free memory.
- * If it returns zero when memory needs to be allocated, the library might abort
- * or take some potentially destructive action.
- * The default is your system realloc function.
- */
-void ev_set_allocator (void *(*cb)(void *ptr, long size));
-
-/* set the callback function to call on a
- * retryable syscall error
- * (such as failed select, poll, epoll_wait)
- */
-void ev_set_syserr_cb (void (*cb)(const char *msg));
-
-#if EV_MULTIPLICITY
-
-/* the default loop is the only one that handles signals and child watchers */
-/* you can call this as often as you like */
-struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
-
-EV_INLINE struct ev_loop *
-ev_default_loop_uc_ (void)
-{
- extern struct ev_loop *ev_default_loop_ptr;
-
- return ev_default_loop_ptr;
-}
-
-EV_INLINE int
-ev_is_default_loop (EV_P)
-{
- return EV_A == EV_DEFAULT_UC;
-}
-
-/* create and destroy alternative loops that don't handle signals */
-struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
-
-ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
-
-#else
-
-int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */
-
-EV_INLINE ev_tstamp
-ev_now (void)
-{
- extern ev_tstamp ev_rt_now;
-
- return ev_rt_now;
-}
-
-/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
-EV_INLINE int
-ev_is_default_loop (void)
-{
- return 1;
-}
-
-#endif /* multiplicity */
-
-/* destroy event loops, also works for the default loop */
-void ev_loop_destroy (EV_P);
-
-/* this needs to be called after fork, to duplicate the loop */
-/* when you want to re-use it in the child */
-/* you can call it in either the parent or the child */
-/* you can actually call it at any time, anywhere :) */
-void ev_loop_fork (EV_P);
-
-unsigned int ev_backend (EV_P); /* backend in use by loop */
-
-void ev_now_update (EV_P); /* update event loop time */
-
-#if EV_WALK_ENABLE
-/* walk (almost) all watchers in the loop of a given type, invoking the */
-/* callback on every such watcher. The callback might stop the watcher, */
-/* but do nothing else with the loop */
-void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
-#endif
-
-#endif /* prototypes */
-
-/* ev_run flags values */
-enum {
- EVRUN_NOWAIT = 1, /* do not block/wait */
- EVRUN_ONCE = 2 /* block *once* only */
-};
-
-/* ev_break how values */
-enum {
- EVBREAK_CANCEL = 0, /* undo unloop */
- EVBREAK_ONE = 1, /* unloop once */
- EVBREAK_ALL = 2 /* unloop all loops */
-};
-
-#if EV_PROTOTYPES
-void ev_run (EV_P_ int flags EV_CPP (= 0));
-void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
-
-/*
- * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
- * keeps one reference. if you have a long-running watcher you never unregister that
- * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
- */
-void ev_ref (EV_P);
-void ev_unref (EV_P);
-
-/*
- * convenience function, wait for a single event, without registering an event watcher
- * if timeout is < 0, do wait indefinitely
- */
-void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
-
-# if EV_FEATURE_API
-unsigned int ev_iteration (EV_P); /* number of loop iterations */
-unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
-void ev_verify (EV_P); /* abort if loop data corrupted */
-
-void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
-void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
-
-/* advanced stuff for threading etc. support, see docs */
-void ev_set_userdata (EV_P_ void *data);
-void *ev_userdata (EV_P);
-void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
-void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P));
-
-unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
-void ev_invoke_pending (EV_P); /* invoke all pending watchers */
-
-/*
- * stop/start the timer handling.
- */
-void ev_suspend (EV_P);
-void ev_resume (EV_P);
-#endif
-
-#endif
-
-/* these may evaluate ev multiple times, and the other arguments at most once */
-/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
-#define ev_init(ev,cb_) do { \
- ((ev_watcher *)(void *)(ev))->active = \
- ((ev_watcher *)(void *)(ev))->pending = 0; \
- ev_set_priority ((ev), 0); \
- ev_set_cb ((ev), cb_); \
-} while (0)
-
-#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
-#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
-#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
-#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
-#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
-#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
-#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
-#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
-#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
-#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
-#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
-#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
-#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
-
-#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
-#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
-#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
-#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
-#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
-#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
-#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
-#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
-#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
-#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
-#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
-#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
-#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
-
-#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
-#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
-
-#define ev_cb(ev) (ev)->cb /* rw */
-
-#if EV_MINPRI == EV_MAXPRI
-# define ev_priority(ev) ((ev), EV_MINPRI)
-# define ev_set_priority(ev,pri) ((ev), (pri))
-#else
-# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
-# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
-#endif
-
-#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
-
-#ifndef ev_set_cb
-# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
-#endif
-
-/* stopping (enabling, adding) a watcher does nothing if it is already running */
-/* stopping (disabling, deleting) a watcher does nothing unless its already running */
-#if EV_PROTOTYPES
-
-/* feeds an event into a watcher as if the event actually occured */
-/* accepts any ev_watcher type */
-void ev_feed_event (EV_P_ void *w, int revents);
-void ev_feed_fd_event (EV_P_ int fd, int revents);
-#if EV_SIGNAL_ENABLE
-void ev_feed_signal (int signum);
-void ev_feed_signal_event (EV_P_ int signum);
-#endif
-void ev_invoke (EV_P_ void *w, int revents);
-int ev_clear_pending (EV_P_ void *w);
-
-void ev_io_start (EV_P_ ev_io *w);
-void ev_io_stop (EV_P_ ev_io *w);
-
-void ev_timer_start (EV_P_ ev_timer *w);
-void ev_timer_stop (EV_P_ ev_timer *w);
-/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
-void ev_timer_again (EV_P_ ev_timer *w);
-/* return remaining time */
-ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
-
-#if EV_PERIODIC_ENABLE
-void ev_periodic_start (EV_P_ ev_periodic *w);
-void ev_periodic_stop (EV_P_ ev_periodic *w);
-void ev_periodic_again (EV_P_ ev_periodic *w);
-#endif
-
-/* only supported in the default loop */
-#if EV_SIGNAL_ENABLE
-void ev_signal_start (EV_P_ ev_signal *w);
-void ev_signal_stop (EV_P_ ev_signal *w);
-#endif
-
-/* only supported in the default loop */
-# if EV_CHILD_ENABLE
-void ev_child_start (EV_P_ ev_child *w);
-void ev_child_stop (EV_P_ ev_child *w);
-# endif
-
-# if EV_STAT_ENABLE
-void ev_stat_start (EV_P_ ev_stat *w);
-void ev_stat_stop (EV_P_ ev_stat *w);
-void ev_stat_stat (EV_P_ ev_stat *w);
-# endif
-
-# if EV_IDLE_ENABLE
-void ev_idle_start (EV_P_ ev_idle *w);
-void ev_idle_stop (EV_P_ ev_idle *w);
-# endif
-
-#if EV_PREPARE_ENABLE
-void ev_prepare_start (EV_P_ ev_prepare *w);
-void ev_prepare_stop (EV_P_ ev_prepare *w);
-#endif
-
-#if EV_CHECK_ENABLE
-void ev_check_start (EV_P_ ev_check *w);
-void ev_check_stop (EV_P_ ev_check *w);
-#endif
-
-# if EV_FORK_ENABLE
-void ev_fork_start (EV_P_ ev_fork *w);
-void ev_fork_stop (EV_P_ ev_fork *w);
-# endif
-
-# if EV_CLEANUP_ENABLE
-void ev_cleanup_start (EV_P_ ev_cleanup *w);
-void ev_cleanup_stop (EV_P_ ev_cleanup *w);
-# endif
-
-# if EV_EMBED_ENABLE
-/* only supported when loop to be embedded is in fact embeddable */
-void ev_embed_start (EV_P_ ev_embed *w);
-void ev_embed_stop (EV_P_ ev_embed *w);
-void ev_embed_sweep (EV_P_ ev_embed *w);
-# endif
-
-# if EV_ASYNC_ENABLE
-void ev_async_start (EV_P_ ev_async *w);
-void ev_async_stop (EV_P_ ev_async *w);
-void ev_async_send (EV_P_ ev_async *w);
-# endif
-
-#if EV_COMPAT3
- #define EVLOOP_NONBLOCK EVRUN_NOWAIT
- #define EVLOOP_ONESHOT EVRUN_ONCE
- #define EVUNLOOP_CANCEL EVBREAK_CANCEL
- #define EVUNLOOP_ONE EVBREAK_ONE
- #define EVUNLOOP_ALL EVBREAK_ALL
- #if EV_PROTOTYPES
- EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
- EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
- EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
- EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
- #if EV_FEATURE_API
- EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
- EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
- EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
- #endif
- #endif
-#else
- typedef struct ev_loop ev_loop;
-#endif
-
-#endif
-
-EV_CPP(})
-
-#endif
-
+++ /dev/null
-=head1 NAME
-
-libev - a high performance full-featured event loop written in C
-
-=head1 SYNOPSIS
-
- #include <ev.h>
-
-=head2 EXAMPLE PROGRAM
-
- // a single header file is required
- #include <ev.h>
-
- #include <stdio.h> // for puts
-
- // every watcher type has its own typedef'd struct
- // with the name ev_TYPE
- ev_io stdin_watcher;
- ev_timer timeout_watcher;
-
- // all watcher callbacks have a similar signature
- // this callback is called when data is readable on stdin
- static void
- stdin_cb (EV_P_ ev_io *w, int revents)
- {
- puts ("stdin ready");
- // for one-shot events, one must manually stop the watcher
- // with its corresponding stop function.
- ev_io_stop (EV_A_ w);
-
- // this causes all nested ev_run's to stop iterating
- ev_break (EV_A_ EVBREAK_ALL);
- }
-
- // another callback, this time for a time-out
- static void
- timeout_cb (EV_P_ ev_timer *w, int revents)
- {
- puts ("timeout");
- // this causes the innermost ev_run to stop iterating
- ev_break (EV_A_ EVBREAK_ONE);
- }
-
- int
- main (void)
- {
- // use the default event loop unless you have special needs
- struct ev_loop *loop = EV_DEFAULT;
-
- // initialise an io watcher, then start it
- // this one will watch for stdin to become readable
- ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ);
- ev_io_start (loop, &stdin_watcher);
-
- // initialise a timer watcher, then start it
- // simple non-repeating 5.5 second timeout
- ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
- ev_timer_start (loop, &timeout_watcher);
-
- // now wait for events to arrive
- ev_run (loop, 0);
-
- // break was called, so exit
- return 0;
- }
-
-=head1 ABOUT THIS DOCUMENT
-
-This document documents the libev software package.
-
-The newest version of this document is also available as an html-formatted
-web page you might find easier to navigate when reading it for the first
-time: L<http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod>.
-
-While this document tries to be as complete as possible in documenting
-libev, its usage and the rationale behind its design, it is not a tutorial
-on event-based programming, nor will it introduce event-based programming
-with libev.
-
-Familiarity with event based programming techniques in general is assumed
-throughout this document.
-
-=head1 WHAT TO READ WHEN IN A HURRY
-
-This manual tries to be very detailed, but unfortunately, this also makes
-it very long. If you just want to know the basics of libev, I suggest
-reading L<ANATOMY OF A WATCHER>, then the L<EXAMPLE PROGRAM> above and
-look up the missing functions in L<GLOBAL FUNCTIONS> and the C<ev_io> and
-C<ev_timer> sections in L<WATCHER TYPES>.
-
-=head1 ABOUT LIBEV
-
-Libev is an event loop: you register interest in certain events (such as a
-file descriptor being readable or a timeout occurring), and it will manage
-these event sources and provide your program with events.
-
-To do this, it must take more or less complete control over your process
-(or thread) by executing the I<event loop> handler, and will then
-communicate events via a callback mechanism.
-
-You register interest in certain events by registering so-called I<event
-watchers>, which are relatively small C structures you initialise with the
-details of the event, and then hand it over to libev by I<starting> the
-watcher.
-
-=head2 FEATURES
-
-Libev supports C<select>, C<poll>, the Linux-specific C<epoll>, the
-BSD-specific C<kqueue> and the Solaris-specific event port mechanisms
-for file descriptor events (C<ev_io>), the Linux C<inotify> interface
-(for C<ev_stat>), Linux eventfd/signalfd (for faster and cleaner
-inter-thread wakeup (C<ev_async>)/signal handling (C<ev_signal>)) relative
-timers (C<ev_timer>), absolute timers with customised rescheduling
-(C<ev_periodic>), synchronous signals (C<ev_signal>), process status
-change events (C<ev_child>), and event watchers dealing with the event
-loop mechanism itself (C<ev_idle>, C<ev_embed>, C<ev_prepare> and
-C<ev_check> watchers) as well as file watchers (C<ev_stat>) and even
-limited support for fork events (C<ev_fork>).
-
-It also is quite fast (see this
-L<benchmark|http://libev.schmorp.de/bench.html> comparing it to libevent
-for example).
-
-=head2 CONVENTIONS
-
-Libev is very configurable. In this manual the default (and most common)
-configuration will be described, which supports multiple event loops. For
-more info about various configuration options please have a look at
-B<EMBED> section in this manual. If libev was configured without support
-for multiple event loops, then all functions taking an initial argument of
-name C<loop> (which is always of type C<struct ev_loop *>) will not have
-this argument.
-
-=head2 TIME REPRESENTATION
-
-Libev represents time as a single floating point number, representing
-the (fractional) number of seconds since the (POSIX) epoch (in practice
-somewhere near the beginning of 1970, details are complicated, don't
-ask). This type is called C<ev_tstamp>, which is what you should use
-too. It usually aliases to the C<double> type in C. When you need to do
-any calculations on it, you should treat it as some floating point value.
-
-Unlike the name component C<stamp> might indicate, it is also used for
-time differences (e.g. delays) throughout libev.
-
-=head1 ERROR HANDLING
-
-Libev knows three classes of errors: operating system errors, usage errors
-and internal errors (bugs).
-
-When libev catches an operating system error it cannot handle (for example
-a system call indicating a condition libev cannot fix), it calls the callback
-set via C<ev_set_syserr_cb>, which is supposed to fix the problem or
-abort. The default is to print a diagnostic message and to call C<abort
-()>.
-
-When libev detects a usage error such as a negative timer interval, then
-it will print a diagnostic message and abort (via the C<assert> mechanism,
-so C<NDEBUG> will disable this checking): these are programming errors in
-the libev caller and need to be fixed there.
-
-Libev also has a few internal error-checking C<assert>ions, and also has
-extensive consistency checking code. These do not trigger under normal
-circumstances, as they indicate either a bug in libev or worse.
-
-
-=head1 GLOBAL FUNCTIONS
-
-These functions can be called anytime, even before initialising the
-library in any way.
-
-=over 4
-
-=item ev_tstamp ev_time ()
-
-Returns the current time as libev would use it. Please note that the
-C<ev_now> function is usually faster and also often returns the timestamp
-you actually want to know. Also interesting is the combination of
-C<ev_update_now> and C<ev_now>.
-
-=item ev_sleep (ev_tstamp interval)
-
-Sleep for the given interval: The current thread will be blocked until
-either it is interrupted or the given time interval has passed. Basically
-this is a sub-second-resolution C<sleep ()>.
-
-=item int ev_version_major ()
-
-=item int ev_version_minor ()
-
-You can find out the major and minor ABI version numbers of the library
-you linked against by calling the functions C<ev_version_major> and
-C<ev_version_minor>. If you want, you can compare against the global
-symbols C<EV_VERSION_MAJOR> and C<EV_VERSION_MINOR>, which specify the
-version of the library your program was compiled against.
-
-These version numbers refer to the ABI version of the library, not the
-release version.
-
-Usually, it's a good idea to terminate if the major versions mismatch,
-as this indicates an incompatible change. Minor versions are usually
-compatible to older versions, so a larger minor version alone is usually
-not a problem.
-
-Example: Make sure we haven't accidentally been linked against the wrong
-version (note, however, that this will not detect other ABI mismatches,
-such as LFS or reentrancy).
-
- assert (("libev version mismatch",
- ev_version_major () == EV_VERSION_MAJOR
- && ev_version_minor () >= EV_VERSION_MINOR));
-
-=item unsigned int ev_supported_backends ()
-
-Return the set of all backends (i.e. their corresponding C<EV_BACKEND_*>
-value) compiled into this binary of libev (independent of their
-availability on the system you are running on). See C<ev_default_loop> for
-a description of the set values.
-
-Example: make sure we have the epoll method, because yeah this is cool and
-a must have and can we have a torrent of it please!!!11
-
- assert (("sorry, no epoll, no sex",
- ev_supported_backends () & EVBACKEND_EPOLL));
-
-=item unsigned int ev_recommended_backends ()
-
-Return the set of all backends compiled into this binary of libev and
-also recommended for this platform, meaning it will work for most file
-descriptor types. This set is often smaller than the one returned by
-C<ev_supported_backends>, as for example kqueue is broken on most BSDs
-and will not be auto-detected unless you explicitly request it (assuming
-you know what you are doing). This is the set of backends that libev will
-probe for if you specify no backends explicitly.
-
-=item unsigned int ev_embeddable_backends ()
-
-Returns the set of backends that are embeddable in other event loops. This
-value is platform-specific but can include backends not available on the
-current system. To find which embeddable backends might be supported on
-the current system, you would need to look at C<ev_embeddable_backends ()
-& ev_supported_backends ()>, likewise for recommended ones.
-
-See the description of C<ev_embed> watchers for more info.
-
-=item ev_set_allocator (void *(*cb)(void *ptr, long size))
-
-Sets the allocation function to use (the prototype is similar - the
-semantics are identical to the C<realloc> C89/SuS/POSIX function). It is
-used to allocate and free memory (no surprises here). If it returns zero
-when memory needs to be allocated (C<size != 0>), the library might abort
-or take some potentially destructive action.
-
-Since some systems (at least OpenBSD and Darwin) fail to implement
-correct C<realloc> semantics, libev will use a wrapper around the system
-C<realloc> and C<free> functions by default.
-
-You could override this function in high-availability programs to, say,
-free some memory if it cannot allocate memory, to use a special allocator,
-or even to sleep a while and retry until some memory is available.
-
-Example: Replace the libev allocator with one that waits a bit and then
-retries (example requires a standards-compliant C<realloc>).
-
- static void *
- persistent_realloc (void *ptr, size_t size)
- {
- for (;;)
- {
- void *newptr = realloc (ptr, size);
-
- if (newptr)
- return newptr;
-
- sleep (60);
- }
- }
-
- ...
- ev_set_allocator (persistent_realloc);
-
-=item ev_set_syserr_cb (void (*cb)(const char *msg))
-
-Set the callback function to call on a retryable system call error (such
-as failed select, poll, epoll_wait). The message is a printable string
-indicating the system call or subsystem causing the problem. If this
-callback is set, then libev will expect it to remedy the situation, no
-matter what, when it returns. That is, libev will generally retry the
-requested operation, or, if the condition doesn't go away, do bad stuff
-(such as abort).
-
-Example: This is basically the same thing that libev does internally, too.
-
- static void
- fatal_error (const char *msg)
- {
- perror (msg);
- abort ();
- }
-
- ...
- ev_set_syserr_cb (fatal_error);
-
-=item ev_feed_signal (int signum)
-
-This function can be used to "simulate" a signal receive. It is completely
-safe to call this function at any time, from any context, including signal
-handlers or random threads.
-
-Its main use is to customise signal handling in your process, especially
-in the presence of threads. For example, you could block signals
-by default in all threads (and specifying C<EVFLAG_NOSIGMASK> when
-creating any loops), and in one thread, use C<sigwait> or any other
-mechanism to wait for signals, then "deliver" them to libev by calling
-C<ev_feed_signal>.
-
-=back
-
-=head1 FUNCTIONS CONTROLLING EVENT LOOPS
-
-An event loop is described by a C<struct ev_loop *> (the C<struct> is
-I<not> optional in this case unless libev 3 compatibility is disabled, as
-libev 3 had an C<ev_loop> function colliding with the struct name).
-
-The library knows two types of such loops, the I<default> loop, which
-supports child process events, and dynamically created event loops which
-do not.
-
-=over 4
-
-=item struct ev_loop *ev_default_loop (unsigned int flags)
-
-This returns the "default" event loop object, which is what you should
-normally use when you just need "the event loop". Event loop objects and
-the C<flags> parameter are described in more detail in the entry for
-C<ev_loop_new>.
-
-If the default loop is already initialised then this function simply
-returns it (and ignores the flags. If that is troubling you, check
-C<ev_backend ()> afterwards). Otherwise it will create it with the given
-flags, which should almost always be C<0>, unless the caller is also the
-one calling C<ev_run> or otherwise qualifies as "the main program".
-
-If you don't know what event loop to use, use the one returned from this
-function (or via the C<EV_DEFAULT> macro).
-
-Note that this function is I<not> thread-safe, so if you want to use it
-from multiple threads, you have to employ some kind of mutex (note also
-that this case is unlikely, as loops cannot be shared easily between
-threads anyway).
-
-The default loop is the only loop that can handle C<ev_child> watchers,
-and to do this, it always registers a handler for C<SIGCHLD>. If this is
-a problem for your application you can either create a dynamic loop with
-C<ev_loop_new> which doesn't do that, or you can simply overwrite the
-C<SIGCHLD> signal handler I<after> calling C<ev_default_init>.
-
-Example: This is the most typical usage.
-
- if (!ev_default_loop (0))
- fatal ("could not initialise libev, bad $LIBEV_FLAGS in environment?");
-
-Example: Restrict libev to the select and poll backends, and do not allow
-environment settings to be taken into account:
-
- ev_default_loop (EVBACKEND_POLL | EVBACKEND_SELECT | EVFLAG_NOENV);
-
-=item struct ev_loop *ev_loop_new (unsigned int flags)
-
-This will create and initialise a new event loop object. If the loop
-could not be initialised, returns false.
-
-This function is thread-safe, and one common way to use libev with
-threads is indeed to create one loop per thread, and using the default
-loop in the "main" or "initial" thread.
-
-The flags argument can be used to specify special behaviour or specific
-backends to use, and is usually specified as C<0> (or C<EVFLAG_AUTO>).
-
-The following flags are supported:
-
-=over 4
-
-=item C<EVFLAG_AUTO>
-
-The default flags value. Use this if you have no clue (it's the right
-thing, believe me).
-
-=item C<EVFLAG_NOENV>
-
-If this flag bit is or'ed into the flag value (or the program runs setuid
-or setgid) then libev will I<not> look at the environment variable
-C<LIBEV_FLAGS>. Otherwise (the default), this environment variable will
-override the flags completely if it is found in the environment. This is
-useful to try out specific backends to test their performance, or to work
-around bugs.
-
-=item C<EVFLAG_FORKCHECK>
-
-Instead of calling C<ev_loop_fork> manually after a fork, you can also
-make libev check for a fork in each iteration by enabling this flag.
-
-This works by calling C<getpid ()> on every iteration of the loop,
-and thus this might slow down your event loop if you do a lot of loop
-iterations and little real work, but is usually not noticeable (on my
-GNU/Linux system for example, C<getpid> is actually a simple 5-insn sequence
-without a system call and thus I<very> fast, but my GNU/Linux system also has
-C<pthread_atfork> which is even faster).
-
-The big advantage of this flag is that you can forget about fork (and
-forget about forgetting to tell libev about forking) when you use this
-flag.
-
-This flag setting cannot be overridden or specified in the C<LIBEV_FLAGS>
-environment variable.
-
-=item C<EVFLAG_NOINOTIFY>
-
-When this flag is specified, then libev will not attempt to use the
-I<inotify> API for its C<ev_stat> watchers. Apart from debugging and
-testing, this flag can be useful to conserve inotify file descriptors, as
-otherwise each loop using C<ev_stat> watchers consumes one inotify handle.
-
-=item C<EVFLAG_SIGNALFD>
-
-When this flag is specified, then libev will attempt to use the
-I<signalfd> API for its C<ev_signal> (and C<ev_child>) watchers. This API
-delivers signals synchronously, which makes it both faster and might make
-it possible to get the queued signal data. It can also simplify signal
-handling with threads, as long as you properly block signals in your
-threads that are not interested in handling them.
-
-Signalfd will not be used by default as this changes your signal mask, and
-there are a lot of shoddy libraries and programs (glib's threadpool for
-example) that can't properly initialise their signal masks.
-
-=item C<EVFLAG_NOSIGMASK>
-
-When this flag is specified, then libev will avoid to modify the signal
-mask. Specifically, this means you ahve to make sure signals are unblocked
-when you want to receive them.
-
-This behaviour is useful when you want to do your own signal handling, or
-want to handle signals only in specific threads and want to avoid libev
-unblocking the signals.
-
-It's also required by POSIX in a threaded program, as libev calls
-C<sigprocmask>, whose behaviour is officially unspecified.
-
-This flag's behaviour will become the default in future versions of libev.
-
-=item C<EVBACKEND_SELECT> (value 1, portable select backend)
-
-This is your standard select(2) backend. Not I<completely> standard, as
-libev tries to roll its own fd_set with no limits on the number of fds,
-but if that fails, expect a fairly low limit on the number of fds when
-using this backend. It doesn't scale too well (O(highest_fd)), but its
-usually the fastest backend for a low number of (low-numbered :) fds.
-
-To get good performance out of this backend you need a high amount of
-parallelism (most of the file descriptors should be busy). If you are
-writing a server, you should C<accept ()> in a loop to accept as many
-connections as possible during one iteration. You might also want to have
-a look at C<ev_set_io_collect_interval ()> to increase the amount of
-readiness notifications you get per iteration.
-
-This backend maps C<EV_READ> to the C<readfds> set and C<EV_WRITE> to the
-C<writefds> set (and to work around Microsoft Windows bugs, also onto the
-C<exceptfds> set on that platform).
-
-=item C<EVBACKEND_POLL> (value 2, poll backend, available everywhere except on windows)
-
-And this is your standard poll(2) backend. It's more complicated
-than select, but handles sparse fds better and has no artificial
-limit on the number of fds you can use (except it will slow down
-considerably with a lot of inactive fds). It scales similarly to select,
-i.e. O(total_fds). See the entry for C<EVBACKEND_SELECT>, above, for
-performance tips.
-
-This backend maps C<EV_READ> to C<POLLIN | POLLERR | POLLHUP>, and
-C<EV_WRITE> to C<POLLOUT | POLLERR | POLLHUP>.
-
-=item C<EVBACKEND_EPOLL> (value 4, Linux)
-
-Use the linux-specific epoll(7) interface (for both pre- and post-2.6.9
-kernels).
-
-For few fds, this backend is a bit little slower than poll and select,
-but it scales phenomenally better. While poll and select usually scale
-like O(total_fds) where n is the total number of fds (or the highest fd),
-epoll scales either O(1) or O(active_fds).
-
-The epoll mechanism deserves honorable mention as the most misdesigned
-of the more advanced event mechanisms: mere annoyances include silently
-dropping file descriptors, requiring a system call per change per file
-descriptor (and unnecessary guessing of parameters), problems with dup,
-returning before the timeout value, resulting in additional iterations
-(and only giving 5ms accuracy while select on the same platform gives
-0.1ms) and so on. The biggest issue is fork races, however - if a program
-forks then I<both> parent and child process have to recreate the epoll
-set, which can take considerable time (one syscall per file descriptor)
-and is of course hard to detect.
-
-Epoll is also notoriously buggy - embedding epoll fds I<should> work, but
-of course I<doesn't>, and epoll just loves to report events for totally
-I<different> file descriptors (even already closed ones, so one cannot
-even remove them from the set) than registered in the set (especially
-on SMP systems). Libev tries to counter these spurious notifications by
-employing an additional generation counter and comparing that against the
-events to filter out spurious ones, recreating the set when required. Last
-not least, it also refuses to work with some file descriptors which work
-perfectly fine with C<select> (files, many character devices...).
-
-Epoll is truly the train wreck analog among event poll mechanisms,
-a frankenpoll, cobbled together in a hurry, no thought to design or
-interaction with others.
-
-While stopping, setting and starting an I/O watcher in the same iteration
-will result in some caching, there is still a system call per such
-incident (because the same I<file descriptor> could point to a different
-I<file description> now), so its best to avoid that. Also, C<dup ()>'ed
-file descriptors might not work very well if you register events for both
-file descriptors.
-
-Best performance from this backend is achieved by not unregistering all
-watchers for a file descriptor until it has been closed, if possible,
-i.e. keep at least one watcher active per fd at all times. Stopping and
-starting a watcher (without re-setting it) also usually doesn't cause
-extra overhead. A fork can both result in spurious notifications as well
-as in libev having to destroy and recreate the epoll object, which can
-take considerable time and thus should be avoided.
-
-All this means that, in practice, C<EVBACKEND_SELECT> can be as fast or
-faster than epoll for maybe up to a hundred file descriptors, depending on
-the usage. So sad.
-
-While nominally embeddable in other event loops, this feature is broken in
-all kernel versions tested so far.
-
-This backend maps C<EV_READ> and C<EV_WRITE> in the same way as
-C<EVBACKEND_POLL>.
-
-=item C<EVBACKEND_KQUEUE> (value 8, most BSD clones)
-
-Kqueue deserves special mention, as at the time of this writing, it
-was broken on all BSDs except NetBSD (usually it doesn't work reliably
-with anything but sockets and pipes, except on Darwin, where of course
-it's completely useless). Unlike epoll, however, whose brokenness
-is by design, these kqueue bugs can (and eventually will) be fixed
-without API changes to existing programs. For this reason it's not being
-"auto-detected" unless you explicitly specify it in the flags (i.e. using
-C<EVBACKEND_KQUEUE>) or libev was compiled on a known-to-be-good (-enough)
-system like NetBSD.
-
-You still can embed kqueue into a normal poll or select backend and use it
-only for sockets (after having made sure that sockets work with kqueue on
-the target platform). See C<ev_embed> watchers for more info.
-
-It scales in the same way as the epoll backend, but the interface to the
-kernel is more efficient (which says nothing about its actual speed, of
-course). While stopping, setting and starting an I/O watcher does never
-cause an extra system call as with C<EVBACKEND_EPOLL>, it still adds up to
-two event changes per incident. Support for C<fork ()> is very bad (but
-sane, unlike epoll) and it drops fds silently in similarly hard-to-detect
-cases
-
-This backend usually performs well under most conditions.
-
-While nominally embeddable in other event loops, this doesn't work
-everywhere, so you might need to test for this. And since it is broken
-almost everywhere, you should only use it when you have a lot of sockets
-(for which it usually works), by embedding it into another event loop
-(e.g. C<EVBACKEND_SELECT> or C<EVBACKEND_POLL> (but C<poll> is of course
-also broken on OS X)) and, did I mention it, using it only for sockets.
-
-This backend maps C<EV_READ> into an C<EVFILT_READ> kevent with
-C<NOTE_EOF>, and C<EV_WRITE> into an C<EVFILT_WRITE> kevent with
-C<NOTE_EOF>.
-
-=item C<EVBACKEND_DEVPOLL> (value 16, Solaris 8)
-
-This is not implemented yet (and might never be, unless you send me an
-implementation). According to reports, C</dev/poll> only supports sockets
-and is not embeddable, which would limit the usefulness of this backend
-immensely.
-
-=item C<EVBACKEND_PORT> (value 32, Solaris 10)
-
-This uses the Solaris 10 event port mechanism. As with everything on Solaris,
-it's really slow, but it still scales very well (O(active_fds)).
-
-While this backend scales well, it requires one system call per active
-file descriptor per loop iteration. For small and medium numbers of file
-descriptors a "slow" C<EVBACKEND_SELECT> or C<EVBACKEND_POLL> backend
-might perform better.
-
-On the positive side, this backend actually performed fully to
-specification in all tests and is fully embeddable, which is a rare feat
-among the OS-specific backends (I vastly prefer correctness over speed
-hacks).
-
-On the negative side, the interface is I<bizarre> - so bizarre that
-even sun itself gets it wrong in their code examples: The event polling
-function sometimes returning events to the caller even though an error
-occurred, but with no indication whether it has done so or not (yes, it's
-even documented that way) - deadly for edge-triggered interfaces where
-you absolutely have to know whether an event occurred or not because you
-have to re-arm the watcher.
-
-Fortunately libev seems to be able to work around these idiocies.
-
-This backend maps C<EV_READ> and C<EV_WRITE> in the same way as
-C<EVBACKEND_POLL>.
-
-=item C<EVBACKEND_ALL>
-
-Try all backends (even potentially broken ones that wouldn't be tried
-with C<EVFLAG_AUTO>). Since this is a mask, you can do stuff such as
-C<EVBACKEND_ALL & ~EVBACKEND_KQUEUE>.
-
-It is definitely not recommended to use this flag, use whatever
-C<ev_recommended_backends ()> returns, or simply do not specify a backend
-at all.
-
-=item C<EVBACKEND_MASK>
-
-Not a backend at all, but a mask to select all backend bits from a
-C<flags> value, in case you want to mask out any backends from a flags
-value (e.g. when modifying the C<LIBEV_FLAGS> environment variable).
-
-=back
-
-If one or more of the backend flags are or'ed into the flags value,
-then only these backends will be tried (in the reverse order as listed
-here). If none are specified, all backends in C<ev_recommended_backends
-()> will be tried.
-
-Example: Try to create a event loop that uses epoll and nothing else.
-
- struct ev_loop *epoller = ev_loop_new (EVBACKEND_EPOLL | EVFLAG_NOENV);
- if (!epoller)
- fatal ("no epoll found here, maybe it hides under your chair");
-
-Example: Use whatever libev has to offer, but make sure that kqueue is
-used if available.
-
- struct ev_loop *loop = ev_loop_new (ev_recommended_backends () | EVBACKEND_KQUEUE);
-
-=item ev_loop_destroy (loop)
-
-Destroys an event loop object (frees all memory and kernel state
-etc.). None of the active event watchers will be stopped in the normal
-sense, so e.g. C<ev_is_active> might still return true. It is your
-responsibility to either stop all watchers cleanly yourself I<before>
-calling this function, or cope with the fact afterwards (which is usually
-the easiest thing, you can just ignore the watchers and/or C<free ()> them
-for example).
-
-Note that certain global state, such as signal state (and installed signal
-handlers), will not be freed by this function, and related watchers (such
-as signal and child watchers) would need to be stopped manually.
-
-This function is normally used on loop objects allocated by
-C<ev_loop_new>, but it can also be used on the default loop returned by
-C<ev_default_loop>, in which case it is not thread-safe.
-
-Note that it is not advisable to call this function on the default loop
-except in the rare occasion where you really need to free its resources.
-If you need dynamically allocated loops it is better to use C<ev_loop_new>
-and C<ev_loop_destroy>.
-
-=item ev_loop_fork (loop)
-
-This function sets a flag that causes subsequent C<ev_run> iterations to
-reinitialise the kernel state for backends that have one. Despite the
-name, you can call it anytime, but it makes most sense after forking, in
-the child process. You I<must> call it (or use C<EVFLAG_FORKCHECK>) in the
-child before resuming or calling C<ev_run>.
-
-Again, you I<have> to call it on I<any> loop that you want to re-use after
-a fork, I<even if you do not plan to use the loop in the parent>. This is
-because some kernel interfaces *cough* I<kqueue> *cough* do funny things
-during fork.
-
-On the other hand, you only need to call this function in the child
-process if and only if you want to use the event loop in the child. If
-you just fork+exec or create a new loop in the child, you don't have to
-call it at all (in fact, C<epoll> is so badly broken that it makes a
-difference, but libev will usually detect this case on its own and do a
-costly reset of the backend).
-
-The function itself is quite fast and it's usually not a problem to call
-it just in case after a fork.
-
-Example: Automate calling C<ev_loop_fork> on the default loop when
-using pthreads.
-
- static void
- post_fork_child (void)
- {
- ev_loop_fork (EV_DEFAULT);
- }
-
- ...
- pthread_atfork (0, 0, post_fork_child);
-
-=item int ev_is_default_loop (loop)
-
-Returns true when the given loop is, in fact, the default loop, and false
-otherwise.
-
-=item unsigned int ev_iteration (loop)
-
-Returns the current iteration count for the event loop, which is identical
-to the number of times libev did poll for new events. It starts at C<0>
-and happily wraps around with enough iterations.
-
-This value can sometimes be useful as a generation counter of sorts (it
-"ticks" the number of loop iterations), as it roughly corresponds with
-C<ev_prepare> and C<ev_check> calls - and is incremented between the
-prepare and check phases.
-
-=item unsigned int ev_depth (loop)
-
-Returns the number of times C<ev_run> was entered minus the number of
-times C<ev_run> was exited normally, in other words, the recursion depth.
-
-Outside C<ev_run>, this number is zero. In a callback, this number is
-C<1>, unless C<ev_run> was invoked recursively (or from another thread),
-in which case it is higher.
-
-Leaving C<ev_run> abnormally (setjmp/longjmp, cancelling the thread,
-throwing an exception etc.), doesn't count as "exit" - consider this
-as a hint to avoid such ungentleman-like behaviour unless it's really
-convenient, in which case it is fully supported.
-
-=item unsigned int ev_backend (loop)
-
-Returns one of the C<EVBACKEND_*> flags indicating the event backend in
-use.
-
-=item ev_tstamp ev_now (loop)
-
-Returns the current "event loop time", which is the time the event loop
-received events and started processing them. This timestamp does not
-change as long as callbacks are being processed, and this is also the base
-time used for relative timers. You can treat it as the timestamp of the
-event occurring (or more correctly, libev finding out about it).
-
-=item ev_now_update (loop)
-
-Establishes the current time by querying the kernel, updating the time
-returned by C<ev_now ()> in the progress. This is a costly operation and
-is usually done automatically within C<ev_run ()>.
-
-This function is rarely useful, but when some event callback runs for a
-very long time without entering the event loop, updating libev's idea of
-the current time is a good idea.
-
-See also L<The special problem of time updates> in the C<ev_timer> section.
-
-=item ev_suspend (loop)
-
-=item ev_resume (loop)
-
-These two functions suspend and resume an event loop, for use when the
-loop is not used for a while and timeouts should not be processed.
-
-A typical use case would be an interactive program such as a game: When
-the user presses C<^Z> to suspend the game and resumes it an hour later it
-would be best to handle timeouts as if no time had actually passed while
-the program was suspended. This can be achieved by calling C<ev_suspend>
-in your C<SIGTSTP> handler, sending yourself a C<SIGSTOP> and calling
-C<ev_resume> directly afterwards to resume timer processing.
-
-Effectively, all C<ev_timer> watchers will be delayed by the time spend
-between C<ev_suspend> and C<ev_resume>, and all C<ev_periodic> watchers
-will be rescheduled (that is, they will lose any events that would have
-occurred while suspended).
-
-After calling C<ev_suspend> you B<must not> call I<any> function on the
-given loop other than C<ev_resume>, and you B<must not> call C<ev_resume>
-without a previous call to C<ev_suspend>.
-
-Calling C<ev_suspend>/C<ev_resume> has the side effect of updating the
-event loop time (see C<ev_now_update>).
-
-=item ev_run (loop, int flags)
-
-Finally, this is it, the event handler. This function usually is called
-after you have initialised all your watchers and you want to start
-handling events. It will ask the operating system for any new events, call
-the watcher callbacks, an then repeat the whole process indefinitely: This
-is why event loops are called I<loops>.
-
-If the flags argument is specified as C<0>, it will keep handling events
-until either no event watchers are active anymore or C<ev_break> was
-called.
-
-Please note that an explicit C<ev_break> is usually better than
-relying on all watchers to be stopped when deciding when a program has
-finished (especially in interactive programs), but having a program
-that automatically loops as long as it has to and no longer by virtue
-of relying on its watchers stopping correctly, that is truly a thing of
-beauty.
-
-This function is also I<mostly> exception-safe - you can break out of
-a C<ev_run> call by calling C<longjmp> in a callback, throwing a C++
-exception and so on. This does not decrement the C<ev_depth> value, nor
-will it clear any outstanding C<EVBREAK_ONE> breaks.
-
-A flags value of C<EVRUN_NOWAIT> will look for new events, will handle
-those events and any already outstanding ones, but will not wait and
-block your process in case there are no events and will return after one
-iteration of the loop. This is sometimes useful to poll and handle new
-events while doing lengthy calculations, to keep the program responsive.
-
-A flags value of C<EVRUN_ONCE> will look for new events (waiting if
-necessary) and will handle those and any already outstanding ones. It
-will block your process until at least one new event arrives (which could
-be an event internal to libev itself, so there is no guarantee that a
-user-registered callback will be called), and will return after one
-iteration of the loop.
-
-This is useful if you are waiting for some external event in conjunction
-with something not expressible using other libev watchers (i.e. "roll your
-own C<ev_run>"). However, a pair of C<ev_prepare>/C<ev_check> watchers is
-usually a better approach for this kind of thing.
-
-Here are the gory details of what C<ev_run> does:
-
- - Increment loop depth.
- - Reset the ev_break status.
- - Before the first iteration, call any pending watchers.
- LOOP:
- - If EVFLAG_FORKCHECK was used, check for a fork.
- - If a fork was detected (by any means), queue and call all fork watchers.
- - Queue and call all prepare watchers.
- - If ev_break was called, goto FINISH.
- - If we have been forked, detach and recreate the kernel state
- as to not disturb the other process.
- - Update the kernel state with all outstanding changes.
- - Update the "event loop time" (ev_now ()).
- - Calculate for how long to sleep or block, if at all
- (active idle watchers, EVRUN_NOWAIT or not having
- any active watchers at all will result in not sleeping).
- - Sleep if the I/O and timer collect interval say so.
- - Increment loop iteration counter.
- - Block the process, waiting for any events.
- - Queue all outstanding I/O (fd) events.
- - Update the "event loop time" (ev_now ()), and do time jump adjustments.
- - Queue all expired timers.
- - Queue all expired periodics.
- - Queue all idle watchers with priority higher than that of pending events.
- - Queue all check watchers.
- - Call all queued watchers in reverse order (i.e. check watchers first).
- Signals and child watchers are implemented as I/O watchers, and will
- be handled here by queueing them when their watcher gets executed.
- - If ev_break has been called, or EVRUN_ONCE or EVRUN_NOWAIT
- were used, or there are no active watchers, goto FINISH, otherwise
- continue with step LOOP.
- FINISH:
- - Reset the ev_break status iff it was EVBREAK_ONE.
- - Decrement the loop depth.
- - Return.
-
-Example: Queue some jobs and then loop until no events are outstanding
-anymore.
-
- ... queue jobs here, make sure they register event watchers as long
- ... as they still have work to do (even an idle watcher will do..)
- ev_run (my_loop, 0);
- ... jobs done or somebody called break. yeah!
-
-=item ev_break (loop, how)
-
-Can be used to make a call to C<ev_run> return early (but only after it
-has processed all outstanding events). The C<how> argument must be either
-C<EVBREAK_ONE>, which will make the innermost C<ev_run> call return, or
-C<EVBREAK_ALL>, which will make all nested C<ev_run> calls return.
-
-This "break state" will be cleared on the next call to C<ev_run>.
-
-It is safe to call C<ev_break> from outside any C<ev_run> calls, too, in
-which case it will have no effect.
-
-=item ev_ref (loop)
-
-=item ev_unref (loop)
-
-Ref/unref can be used to add or remove a reference count on the event
-loop: Every watcher keeps one reference, and as long as the reference
-count is nonzero, C<ev_run> will not return on its own.
-
-This is useful when you have a watcher that you never intend to
-unregister, but that nevertheless should not keep C<ev_run> from
-returning. In such a case, call C<ev_unref> after starting, and C<ev_ref>
-before stopping it.
-
-As an example, libev itself uses this for its internal signal pipe: It
-is not visible to the libev user and should not keep C<ev_run> from
-exiting if no event watchers registered by it are active. It is also an
-excellent way to do this for generic recurring timers or from within
-third-party libraries. Just remember to I<unref after start> and I<ref
-before stop> (but only if the watcher wasn't active before, or was active
-before, respectively. Note also that libev might stop watchers itself
-(e.g. non-repeating timers) in which case you have to C<ev_ref>
-in the callback).
-
-Example: Create a signal watcher, but keep it from keeping C<ev_run>
-running when nothing else is active.
-
- ev_signal exitsig;
- ev_signal_init (&exitsig, sig_cb, SIGINT);
- ev_signal_start (loop, &exitsig);
- ev_unref (loop);
-
-Example: For some weird reason, unregister the above signal handler again.
-
- ev_ref (loop);
- ev_signal_stop (loop, &exitsig);
-
-=item ev_set_io_collect_interval (loop, ev_tstamp interval)
-
-=item ev_set_timeout_collect_interval (loop, ev_tstamp interval)
-
-These advanced functions influence the time that libev will spend waiting
-for events. Both time intervals are by default C<0>, meaning that libev
-will try to invoke timer/periodic callbacks and I/O callbacks with minimum
-latency.
-
-Setting these to a higher value (the C<interval> I<must> be >= C<0>)
-allows libev to delay invocation of I/O and timer/periodic callbacks
-to increase efficiency of loop iterations (or to increase power-saving
-opportunities).
-
-The idea is that sometimes your program runs just fast enough to handle
-one (or very few) event(s) per loop iteration. While this makes the
-program responsive, it also wastes a lot of CPU time to poll for new
-events, especially with backends like C<select ()> which have a high
-overhead for the actual polling but can deliver many events at once.
-
-By setting a higher I<io collect interval> you allow libev to spend more
-time collecting I/O events, so you can handle more events per iteration,
-at the cost of increasing latency. Timeouts (both C<ev_periodic> and
-C<ev_timer>) will be not affected. Setting this to a non-null value will
-introduce an additional C<ev_sleep ()> call into most loop iterations. The
-sleep time ensures that libev will not poll for I/O events more often then
-once per this interval, on average.
-
-Likewise, by setting a higher I<timeout collect interval> you allow libev
-to spend more time collecting timeouts, at the expense of increased
-latency/jitter/inexactness (the watcher callback will be called
-later). C<ev_io> watchers will not be affected. Setting this to a non-null
-value will not introduce any overhead in libev.
-
-Many (busy) programs can usually benefit by setting the I/O collect
-interval to a value near C<0.1> or so, which is often enough for
-interactive servers (of course not for games), likewise for timeouts. It
-usually doesn't make much sense to set it to a lower value than C<0.01>,
-as this approaches the timing granularity of most systems. Note that if
-you do transactions with the outside world and you can't increase the
-parallelity, then this setting will limit your transaction rate (if you
-need to poll once per transaction and the I/O collect interval is 0.01,
-then you can't do more than 100 transactions per second).
-
-Setting the I<timeout collect interval> can improve the opportunity for
-saving power, as the program will "bundle" timer callback invocations that
-are "near" in time together, by delaying some, thus reducing the number of
-times the process sleeps and wakes up again. Another useful technique to
-reduce iterations/wake-ups is to use C<ev_periodic> watchers and make sure
-they fire on, say, one-second boundaries only.
-
-Example: we only need 0.1s timeout granularity, and we wish not to poll
-more often than 100 times per second:
-
- ev_set_timeout_collect_interval (EV_DEFAULT_UC_ 0.1);
- ev_set_io_collect_interval (EV_DEFAULT_UC_ 0.01);
-
-=item ev_invoke_pending (loop)
-
-This call will simply invoke all pending watchers while resetting their
-pending state. Normally, C<ev_run> does this automatically when required,
-but when overriding the invoke callback this call comes handy. This
-function can be invoked from a watcher - this can be useful for example
-when you want to do some lengthy calculation and want to pass further
-event handling to another thread (you still have to make sure only one
-thread executes within C<ev_invoke_pending> or C<ev_run> of course).
-
-=item int ev_pending_count (loop)
-
-Returns the number of pending watchers - zero indicates that no watchers
-are pending.
-
-=item ev_set_invoke_pending_cb (loop, void (*invoke_pending_cb)(EV_P))
-
-This overrides the invoke pending functionality of the loop: Instead of
-invoking all pending watchers when there are any, C<ev_run> will call
-this callback instead. This is useful, for example, when you want to
-invoke the actual watchers inside another context (another thread etc.).
-
-If you want to reset the callback, use C<ev_invoke_pending> as new
-callback.
-
-=item ev_set_loop_release_cb (loop, void (*release)(EV_P), void (*acquire)(EV_P))
-
-Sometimes you want to share the same loop between multiple threads. This
-can be done relatively simply by putting mutex_lock/unlock calls around
-each call to a libev function.
-
-However, C<ev_run> can run an indefinite time, so it is not feasible
-to wait for it to return. One way around this is to wake up the event
-loop via C<ev_break> and C<av_async_send>, another way is to set these
-I<release> and I<acquire> callbacks on the loop.
-
-When set, then C<release> will be called just before the thread is
-suspended waiting for new events, and C<acquire> is called just
-afterwards.
-
-Ideally, C<release> will just call your mutex_unlock function, and
-C<acquire> will just call the mutex_lock function again.
-
-While event loop modifications are allowed between invocations of
-C<release> and C<acquire> (that's their only purpose after all), no
-modifications done will affect the event loop, i.e. adding watchers will
-have no effect on the set of file descriptors being watched, or the time
-waited. Use an C<ev_async> watcher to wake up C<ev_run> when you want it
-to take note of any changes you made.
-
-In theory, threads executing C<ev_run> will be async-cancel safe between
-invocations of C<release> and C<acquire>.
-
-See also the locking example in the C<THREADS> section later in this
-document.
-
-=item ev_set_userdata (loop, void *data)
-
-=item void *ev_userdata (loop)
-
-Set and retrieve a single C<void *> associated with a loop. When
-C<ev_set_userdata> has never been called, then C<ev_userdata> returns
-C<0>.
-
-These two functions can be used to associate arbitrary data with a loop,
-and are intended solely for the C<invoke_pending_cb>, C<release> and
-C<acquire> callbacks described above, but of course can be (ab-)used for
-any other purpose as well.
-
-=item ev_verify (loop)
-
-This function only does something when C<EV_VERIFY> support has been
-compiled in, which is the default for non-minimal builds. It tries to go
-through all internal structures and checks them for validity. If anything
-is found to be inconsistent, it will print an error message to standard
-error and call C<abort ()>.
-
-This can be used to catch bugs inside libev itself: under normal
-circumstances, this function will never abort as of course libev keeps its
-data structures consistent.
-
-=back
-
-
-=head1 ANATOMY OF A WATCHER
-
-In the following description, uppercase C<TYPE> in names stands for the
-watcher type, e.g. C<ev_TYPE_start> can mean C<ev_timer_start> for timer
-watchers and C<ev_io_start> for I/O watchers.
-
-A watcher is an opaque structure that you allocate and register to record
-your interest in some event. To make a concrete example, imagine you want
-to wait for STDIN to become readable, you would create an C<ev_io> watcher
-for that:
-
- static void my_cb (struct ev_loop *loop, ev_io *w, int revents)
- {
- ev_io_stop (w);
- ev_break (loop, EVBREAK_ALL);
- }
-
- struct ev_loop *loop = ev_default_loop (0);
-
- ev_io stdin_watcher;
-
- ev_init (&stdin_watcher, my_cb);
- ev_io_set (&stdin_watcher, STDIN_FILENO, EV_READ);
- ev_io_start (loop, &stdin_watcher);
-
- ev_run (loop, 0);
-
-As you can see, you are responsible for allocating the memory for your
-watcher structures (and it is I<usually> a bad idea to do this on the
-stack).
-
-Each watcher has an associated watcher structure (called C<struct ev_TYPE>
-or simply C<ev_TYPE>, as typedefs are provided for all watcher structs).
-
-Each watcher structure must be initialised by a call to C<ev_init (watcher
-*, callback)>, which expects a callback to be provided. This callback is
-invoked each time the event occurs (or, in the case of I/O watchers, each
-time the event loop detects that the file descriptor given is readable
-and/or writable).
-
-Each watcher type further has its own C<< ev_TYPE_set (watcher *, ...) >>
-macro to configure it, with arguments specific to the watcher type. There
-is also a macro to combine initialisation and setting in one call: C<<
-ev_TYPE_init (watcher *, callback, ...) >>.
-
-To make the watcher actually watch out for events, you have to start it
-with a watcher-specific start function (C<< ev_TYPE_start (loop, watcher
-*) >>), and you can stop watching for events at any time by calling the
-corresponding stop function (C<< ev_TYPE_stop (loop, watcher *) >>.
-
-As long as your watcher is active (has been started but not stopped) you
-must not touch the values stored in it. Most specifically you must never
-reinitialise it or call its C<ev_TYPE_set> macro.
-
-Each and every callback receives the event loop pointer as first, the
-registered watcher structure as second, and a bitset of received events as
-third argument.
-
-The received events usually include a single bit per event type received
-(you can receive multiple events at the same time). The possible bit masks
-are:
-
-=over 4
-
-=item C<EV_READ>
-
-=item C<EV_WRITE>
-
-The file descriptor in the C<ev_io> watcher has become readable and/or
-writable.
-
-=item C<EV_TIMER>
-
-The C<ev_timer> watcher has timed out.
-
-=item C<EV_PERIODIC>
-
-The C<ev_periodic> watcher has timed out.
-
-=item C<EV_SIGNAL>
-
-The signal specified in the C<ev_signal> watcher has been received by a thread.
-
-=item C<EV_CHILD>
-
-The pid specified in the C<ev_child> watcher has received a status change.
-
-=item C<EV_STAT>
-
-The path specified in the C<ev_stat> watcher changed its attributes somehow.
-
-=item C<EV_IDLE>
-
-The C<ev_idle> watcher has determined that you have nothing better to do.
-
-=item C<EV_PREPARE>
-
-=item C<EV_CHECK>
-
-All C<ev_prepare> watchers are invoked just I<before> C<ev_run> starts
-to gather new events, and all C<ev_check> watchers are invoked just after
-C<ev_run> has gathered them, but before it invokes any callbacks for any
-received events. Callbacks of both watcher types can start and stop as
-many watchers as they want, and all of them will be taken into account
-(for example, a C<ev_prepare> watcher might start an idle watcher to keep
-C<ev_run> from blocking).
-
-=item C<EV_EMBED>
-
-The embedded event loop specified in the C<ev_embed> watcher needs attention.
-
-=item C<EV_FORK>
-
-The event loop has been resumed in the child process after fork (see
-C<ev_fork>).
-
-=item C<EV_CLEANUP>
-
-The event loop is about to be destroyed (see C<ev_cleanup>).
-
-=item C<EV_ASYNC>
-
-The given async watcher has been asynchronously notified (see C<ev_async>).
-
-=item C<EV_CUSTOM>
-
-Not ever sent (or otherwise used) by libev itself, but can be freely used
-by libev users to signal watchers (e.g. via C<ev_feed_event>).
-
-=item C<EV_ERROR>
-
-An unspecified error has occurred, the watcher has been stopped. This might
-happen because the watcher could not be properly started because libev
-ran out of memory, a file descriptor was found to be closed or any other
-problem. Libev considers these application bugs.
-
-You best act on it by reporting the problem and somehow coping with the
-watcher being stopped. Note that well-written programs should not receive
-an error ever, so when your watcher receives it, this usually indicates a
-bug in your program.
-
-Libev will usually signal a few "dummy" events together with an error, for
-example it might indicate that a fd is readable or writable, and if your
-callbacks is well-written it can just attempt the operation and cope with
-the error from read() or write(). This will not work in multi-threaded
-programs, though, as the fd could already be closed and reused for another
-thing, so beware.
-
-=back
-
-=head2 GENERIC WATCHER FUNCTIONS
-
-=over 4
-
-=item C<ev_init> (ev_TYPE *watcher, callback)
-
-This macro initialises the generic portion of a watcher. The contents
-of the watcher object can be arbitrary (so C<malloc> will do). Only
-the generic parts of the watcher are initialised, you I<need> to call
-the type-specific C<ev_TYPE_set> macro afterwards to initialise the
-type-specific parts. For each type there is also a C<ev_TYPE_init> macro
-which rolls both calls into one.
-
-You can reinitialise a watcher at any time as long as it has been stopped
-(or never started) and there are no pending events outstanding.
-
-The callback is always of type C<void (*)(struct ev_loop *loop, ev_TYPE *watcher,
-int revents)>.
-
-Example: Initialise an C<ev_io> watcher in two steps.
-
- ev_io w;
- ev_init (&w, my_cb);
- ev_io_set (&w, STDIN_FILENO, EV_READ);
-
-=item C<ev_TYPE_set> (ev_TYPE *watcher, [args])
-
-This macro initialises the type-specific parts of a watcher. You need to
-call C<ev_init> at least once before you call this macro, but you can
-call C<ev_TYPE_set> any number of times. You must not, however, call this
-macro on a watcher that is active (it can be pending, however, which is a
-difference to the C<ev_init> macro).
-
-Although some watcher types do not have type-specific arguments
-(e.g. C<ev_prepare>) you still need to call its C<set> macro.
-
-See C<ev_init>, above, for an example.
-
-=item C<ev_TYPE_init> (ev_TYPE *watcher, callback, [args])
-
-This convenience macro rolls both C<ev_init> and C<ev_TYPE_set> macro
-calls into a single call. This is the most convenient method to initialise
-a watcher. The same limitations apply, of course.
-
-Example: Initialise and set an C<ev_io> watcher in one step.
-
- ev_io_init (&w, my_cb, STDIN_FILENO, EV_READ);
-
-=item C<ev_TYPE_start> (loop, ev_TYPE *watcher)
-
-Starts (activates) the given watcher. Only active watchers will receive
-events. If the watcher is already active nothing will happen.
-
-Example: Start the C<ev_io> watcher that is being abused as example in this
-whole section.
-
- ev_io_start (EV_DEFAULT_UC, &w);
-
-=item C<ev_TYPE_stop> (loop, ev_TYPE *watcher)
-
-Stops the given watcher if active, and clears the pending status (whether
-the watcher was active or not).
-
-It is possible that stopped watchers are pending - for example,
-non-repeating timers are being stopped when they become pending - but
-calling C<ev_TYPE_stop> ensures that the watcher is neither active nor
-pending. If you want to free or reuse the memory used by the watcher it is
-therefore a good idea to always call its C<ev_TYPE_stop> function.
-
-=item bool ev_is_active (ev_TYPE *watcher)
-
-Returns a true value iff the watcher is active (i.e. it has been started
-and not yet been stopped). As long as a watcher is active you must not modify
-it.
-
-=item bool ev_is_pending (ev_TYPE *watcher)
-
-Returns a true value iff the watcher is pending, (i.e. it has outstanding
-events but its callback has not yet been invoked). As long as a watcher
-is pending (but not active) you must not call an init function on it (but
-C<ev_TYPE_set> is safe), you must not change its priority, and you must
-make sure the watcher is available to libev (e.g. you cannot C<free ()>
-it).
-
-=item callback ev_cb (ev_TYPE *watcher)
-
-Returns the callback currently set on the watcher.
-
-=item ev_cb_set (ev_TYPE *watcher, callback)
-
-Change the callback. You can change the callback at virtually any time
-(modulo threads).
-
-=item ev_set_priority (ev_TYPE *watcher, int priority)
-
-=item int ev_priority (ev_TYPE *watcher)
-
-Set and query the priority of the watcher. The priority is a small
-integer between C<EV_MAXPRI> (default: C<2>) and C<EV_MINPRI>
-(default: C<-2>). Pending watchers with higher priority will be invoked
-before watchers with lower priority, but priority will not keep watchers
-from being executed (except for C<ev_idle> watchers).
-
-If you need to suppress invocation when higher priority events are pending
-you need to look at C<ev_idle> watchers, which provide this functionality.
-
-You I<must not> change the priority of a watcher as long as it is active or
-pending.
-
-Setting a priority outside the range of C<EV_MINPRI> to C<EV_MAXPRI> is
-fine, as long as you do not mind that the priority value you query might
-or might not have been clamped to the valid range.
-
-The default priority used by watchers when no priority has been set is
-always C<0>, which is supposed to not be too high and not be too low :).
-
-See L<WATCHER PRIORITY MODELS>, below, for a more thorough treatment of
-priorities.
-
-=item ev_invoke (loop, ev_TYPE *watcher, int revents)
-
-Invoke the C<watcher> with the given C<loop> and C<revents>. Neither
-C<loop> nor C<revents> need to be valid as long as the watcher callback
-can deal with that fact, as both are simply passed through to the
-callback.
-
-=item int ev_clear_pending (loop, ev_TYPE *watcher)
-
-If the watcher is pending, this function clears its pending status and
-returns its C<revents> bitset (as if its callback was invoked). If the
-watcher isn't pending it does nothing and returns C<0>.
-
-Sometimes it can be useful to "poll" a watcher instead of waiting for its
-callback to be invoked, which can be accomplished with this function.
-
-=item ev_feed_event (loop, ev_TYPE *watcher, int revents)
-
-Feeds the given event set into the event loop, as if the specified event
-had happened for the specified watcher (which must be a pointer to an
-initialised but not necessarily started event watcher). Obviously you must
-not free the watcher as long as it has pending events.
-
-Stopping the watcher, letting libev invoke it, or calling
-C<ev_clear_pending> will clear the pending event, even if the watcher was
-not started in the first place.
-
-See also C<ev_feed_fd_event> and C<ev_feed_signal_event> for related
-functions that do not need a watcher.
-
-=back
-
-See also the L<ASSOCIATING CUSTOM DATA WITH A WATCHER> and L<BUILDING YOUR
-OWN COMPOSITE WATCHERS> idioms.
-
-=head2 WATCHER STATES
-
-There are various watcher states mentioned throughout this manual -
-active, pending and so on. In this section these states and the rules to
-transition between them will be described in more detail - and while these
-rules might look complicated, they usually do "the right thing".
-
-=over 4
-
-=item initialiased
-
-Before a watcher can be registered with the event looop it has to be
-initialised. This can be done with a call to C<ev_TYPE_init>, or calls to
-C<ev_init> followed by the watcher-specific C<ev_TYPE_set> function.
-
-In this state it is simply some block of memory that is suitable for
-use in an event loop. It can be moved around, freed, reused etc. at
-will - as long as you either keep the memory contents intact, or call
-C<ev_TYPE_init> again.
-
-=item started/running/active
-
-Once a watcher has been started with a call to C<ev_TYPE_start> it becomes
-property of the event loop, and is actively waiting for events. While in
-this state it cannot be accessed (except in a few documented ways), moved,
-freed or anything else - the only legal thing is to keep a pointer to it,
-and call libev functions on it that are documented to work on active watchers.
-
-=item pending
-
-If a watcher is active and libev determines that an event it is interested
-in has occurred (such as a timer expiring), it will become pending. It will
-stay in this pending state until either it is stopped or its callback is
-about to be invoked, so it is not normally pending inside the watcher
-callback.
-
-The watcher might or might not be active while it is pending (for example,
-an expired non-repeating timer can be pending but no longer active). If it
-is stopped, it can be freely accessed (e.g. by calling C<ev_TYPE_set>),
-but it is still property of the event loop at this time, so cannot be
-moved, freed or reused. And if it is active the rules described in the
-previous item still apply.
-
-It is also possible to feed an event on a watcher that is not active (e.g.
-via C<ev_feed_event>), in which case it becomes pending without being
-active.
-
-=item stopped
-
-A watcher can be stopped implicitly by libev (in which case it might still
-be pending), or explicitly by calling its C<ev_TYPE_stop> function. The
-latter will clear any pending state the watcher might be in, regardless
-of whether it was active or not, so stopping a watcher explicitly before
-freeing it is often a good idea.
-
-While stopped (and not pending) the watcher is essentially in the
-initialised state, that is, it can be reused, moved, modified in any way
-you wish (but when you trash the memory block, you need to C<ev_TYPE_init>
-it again).
-
-=back
-
-=head2 WATCHER PRIORITY MODELS
-
-Many event loops support I<watcher priorities>, which are usually small
-integers that influence the ordering of event callback invocation
-between watchers in some way, all else being equal.
-
-In libev, Watcher priorities can be set using C<ev_set_priority>. See its
-description for the more technical details such as the actual priority
-range.
-
-There are two common ways how these these priorities are being interpreted
-by event loops:
-
-In the more common lock-out model, higher priorities "lock out" invocation
-of lower priority watchers, which means as long as higher priority
-watchers receive events, lower priority watchers are not being invoked.
-
-The less common only-for-ordering model uses priorities solely to order
-callback invocation within a single event loop iteration: Higher priority
-watchers are invoked before lower priority ones, but they all get invoked
-before polling for new events.
-
-Libev uses the second (only-for-ordering) model for all its watchers
-except for idle watchers (which use the lock-out model).
-
-The rationale behind this is that implementing the lock-out model for
-watchers is not well supported by most kernel interfaces, and most event
-libraries will just poll for the same events again and again as long as
-their callbacks have not been executed, which is very inefficient in the
-common case of one high-priority watcher locking out a mass of lower
-priority ones.
-
-Static (ordering) priorities are most useful when you have two or more
-watchers handling the same resource: a typical usage example is having an
-C<ev_io> watcher to receive data, and an associated C<ev_timer> to handle
-timeouts. Under load, data might be received while the program handles
-other jobs, but since timers normally get invoked first, the timeout
-handler will be executed before checking for data. In that case, giving
-the timer a lower priority than the I/O watcher ensures that I/O will be
-handled first even under adverse conditions (which is usually, but not
-always, what you want).
-
-Since idle watchers use the "lock-out" model, meaning that idle watchers
-will only be executed when no same or higher priority watchers have
-received events, they can be used to implement the "lock-out" model when
-required.
-
-For example, to emulate how many other event libraries handle priorities,
-you can associate an C<ev_idle> watcher to each such watcher, and in
-the normal watcher callback, you just start the idle watcher. The real
-processing is done in the idle watcher callback. This causes libev to
-continuously poll and process kernel event data for the watcher, but when
-the lock-out case is known to be rare (which in turn is rare :), this is
-workable.
-
-Usually, however, the lock-out model implemented that way will perform
-miserably under the type of load it was designed to handle. In that case,
-it might be preferable to stop the real watcher before starting the
-idle watcher, so the kernel will not have to process the event in case
-the actual processing will be delayed for considerable time.
-
-Here is an example of an I/O watcher that should run at a strictly lower
-priority than the default, and which should only process data when no
-other events are pending:
-
- ev_idle idle; // actual processing watcher
- ev_io io; // actual event watcher
-
- static void
- io_cb (EV_P_ ev_io *w, int revents)
- {
- // stop the I/O watcher, we received the event, but
- // are not yet ready to handle it.
- ev_io_stop (EV_A_ w);
-
- // start the idle watcher to handle the actual event.
- // it will not be executed as long as other watchers
- // with the default priority are receiving events.
- ev_idle_start (EV_A_ &idle);
- }
-
- static void
- idle_cb (EV_P_ ev_idle *w, int revents)
- {
- // actual processing
- read (STDIN_FILENO, ...);
-
- // have to start the I/O watcher again, as
- // we have handled the event
- ev_io_start (EV_P_ &io);
- }
-
- // initialisation
- ev_idle_init (&idle, idle_cb);
- ev_io_init (&io, io_cb, STDIN_FILENO, EV_READ);
- ev_io_start (EV_DEFAULT_ &io);
-
-In the "real" world, it might also be beneficial to start a timer, so that
-low-priority connections can not be locked out forever under load. This
-enables your program to keep a lower latency for important connections
-during short periods of high load, while not completely locking out less
-important ones.
-
-
-=head1 WATCHER TYPES
-
-This section describes each watcher in detail, but will not repeat
-information given in the last section. Any initialisation/set macros,
-functions and members specific to the watcher type are explained.
-
-Members are additionally marked with either I<[read-only]>, meaning that,
-while the watcher is active, you can look at the member and expect some
-sensible content, but you must not modify it (you can modify it while the
-watcher is stopped to your hearts content), or I<[read-write]>, which
-means you can expect it to have some sensible content while the watcher
-is active, but you can also modify it. Modifying it may not do something
-sensible or take immediate effect (or do anything at all), but libev will
-not crash or malfunction in any way.
-
-
-=head2 C<ev_io> - is this file descriptor readable or writable?
-
-I/O watchers check whether a file descriptor is readable or writable
-in each iteration of the event loop, or, more precisely, when reading
-would not block the process and writing would at least be able to write
-some data. This behaviour is called level-triggering because you keep
-receiving events as long as the condition persists. Remember you can stop
-the watcher if you don't want to act on the event and neither want to
-receive future events.
-
-In general you can register as many read and/or write event watchers per
-fd as you want (as long as you don't confuse yourself). Setting all file
-descriptors to non-blocking mode is also usually a good idea (but not
-required if you know what you are doing).
-
-Another thing you have to watch out for is that it is quite easy to
-receive "spurious" readiness notifications, that is, your callback might
-be called with C<EV_READ> but a subsequent C<read>(2) will actually block
-because there is no data. It is very easy to get into this situation even
-with a relatively standard program structure. Thus it is best to always
-use non-blocking I/O: An extra C<read>(2) returning C<EAGAIN> is far
-preferable to a program hanging until some data arrives.
-
-If you cannot run the fd in non-blocking mode (for example you should
-not play around with an Xlib connection), then you have to separately
-re-test whether a file descriptor is really ready with a known-to-be good
-interface such as poll (fortunately in the case of Xlib, it already does
-this on its own, so its quite safe to use). Some people additionally
-use C<SIGALRM> and an interval timer, just to be sure you won't block
-indefinitely.
-
-But really, best use non-blocking mode.
-
-=head3 The special problem of disappearing file descriptors
-
-Some backends (e.g. kqueue, epoll) need to be told about closing a file
-descriptor (either due to calling C<close> explicitly or any other means,
-such as C<dup2>). The reason is that you register interest in some file
-descriptor, but when it goes away, the operating system will silently drop
-this interest. If another file descriptor with the same number then is
-registered with libev, there is no efficient way to see that this is, in
-fact, a different file descriptor.
-
-To avoid having to explicitly tell libev about such cases, libev follows
-the following policy: Each time C<ev_io_set> is being called, libev
-will assume that this is potentially a new file descriptor, otherwise
-it is assumed that the file descriptor stays the same. That means that
-you I<have> to call C<ev_io_set> (or C<ev_io_init>) when you change the
-descriptor even if the file descriptor number itself did not change.
-
-This is how one would do it normally anyway, the important point is that
-the libev application should not optimise around libev but should leave
-optimisations to libev.
-
-=head3 The special problem of dup'ed file descriptors
-
-Some backends (e.g. epoll), cannot register events for file descriptors,
-but only events for the underlying file descriptions. That means when you
-have C<dup ()>'ed file descriptors or weirder constellations, and register
-events for them, only one file descriptor might actually receive events.
-
-There is no workaround possible except not registering events
-for potentially C<dup ()>'ed file descriptors, or to resort to
-C<EVBACKEND_SELECT> or C<EVBACKEND_POLL>.
-
-=head3 The special problem of files
-
-Many people try to use C<select> (or libev) on file descriptors
-representing files, and expect it to become ready when their program
-doesn't block on disk accesses (which can take a long time on their own).
-
-However, this cannot ever work in the "expected" way - you get a readiness
-notification as soon as the kernel knows whether and how much data is
-there, and in the case of open files, that's always the case, so you
-always get a readiness notification instantly, and your read (or possibly
-write) will still block on the disk I/O.
-
-Another way to view it is that in the case of sockets, pipes, character
-devices and so on, there is another party (the sender) that delivers data
-on its own, but in the case of files, there is no such thing: the disk
-will not send data on its own, simply because it doesn't know what you
-wish to read - you would first have to request some data.
-
-Since files are typically not-so-well supported by advanced notification
-mechanism, libev tries hard to emulate POSIX behaviour with respect
-to files, even though you should not use it. The reason for this is
-convenience: sometimes you want to watch STDIN or STDOUT, which is
-usually a tty, often a pipe, but also sometimes files or special devices
-(for example, C<epoll> on Linux works with F</dev/random> but not with
-F</dev/urandom>), and even though the file might better be served with
-asynchronous I/O instead of with non-blocking I/O, it is still useful when
-it "just works" instead of freezing.
-
-So avoid file descriptors pointing to files when you know it (e.g. use
-libeio), but use them when it is convenient, e.g. for STDIN/STDOUT, or
-when you rarely read from a file instead of from a socket, and want to
-reuse the same code path.
-
-=head3 The special problem of fork
-
-Some backends (epoll, kqueue) do not support C<fork ()> at all or exhibit
-useless behaviour. Libev fully supports fork, but needs to be told about
-it in the child if you want to continue to use it in the child.
-
-To support fork in your child processes, you have to call C<ev_loop_fork
-()> after a fork in the child, enable C<EVFLAG_FORKCHECK>, or resort to
-C<EVBACKEND_SELECT> or C<EVBACKEND_POLL>.
-
-=head3 The special problem of SIGPIPE
-
-While not really specific to libev, it is easy to forget about C<SIGPIPE>:
-when writing to a pipe whose other end has been closed, your program gets
-sent a SIGPIPE, which, by default, aborts your program. For most programs
-this is sensible behaviour, for daemons, this is usually undesirable.
-
-So when you encounter spurious, unexplained daemon exits, make sure you
-ignore SIGPIPE (and maybe make sure you log the exit status of your daemon
-somewhere, as that would have given you a big clue).
-
-=head3 The special problem of accept()ing when you can't
-
-Many implementations of the POSIX C<accept> function (for example,
-found in post-2004 Linux) have the peculiar behaviour of not removing a
-connection from the pending queue in all error cases.
-
-For example, larger servers often run out of file descriptors (because
-of resource limits), causing C<accept> to fail with C<ENFILE> but not
-rejecting the connection, leading to libev signalling readiness on
-the next iteration again (the connection still exists after all), and
-typically causing the program to loop at 100% CPU usage.
-
-Unfortunately, the set of errors that cause this issue differs between
-operating systems, there is usually little the app can do to remedy the
-situation, and no known thread-safe method of removing the connection to
-cope with overload is known (to me).
-
-One of the easiest ways to handle this situation is to just ignore it
-- when the program encounters an overload, it will just loop until the
-situation is over. While this is a form of busy waiting, no OS offers an
-event-based way to handle this situation, so it's the best one can do.
-
-A better way to handle the situation is to log any errors other than
-C<EAGAIN> and C<EWOULDBLOCK>, making sure not to flood the log with such
-messages, and continue as usual, which at least gives the user an idea of
-what could be wrong ("raise the ulimit!"). For extra points one could stop
-the C<ev_io> watcher on the listening fd "for a while", which reduces CPU
-usage.
-
-If your program is single-threaded, then you could also keep a dummy file
-descriptor for overload situations (e.g. by opening F</dev/null>), and
-when you run into C<ENFILE> or C<EMFILE>, close it, run C<accept>,
-close that fd, and create a new dummy fd. This will gracefully refuse
-clients under typical overload conditions.
-
-The last way to handle it is to simply log the error and C<exit>, as
-is often done with C<malloc> failures, but this results in an easy
-opportunity for a DoS attack.
-
-=head3 Watcher-Specific Functions
-
-=over 4
-
-=item ev_io_init (ev_io *, callback, int fd, int events)
-
-=item ev_io_set (ev_io *, int fd, int events)
-
-Configures an C<ev_io> watcher. The C<fd> is the file descriptor to
-receive events for and C<events> is either C<EV_READ>, C<EV_WRITE> or
-C<EV_READ | EV_WRITE>, to express the desire to receive the given events.
-
-=item int fd [read-only]
-
-The file descriptor being watched.
-
-=item int events [read-only]
-
-The events being watched.
-
-=back
-
-=head3 Examples
-
-Example: Call C<stdin_readable_cb> when STDIN_FILENO has become, well
-readable, but only once. Since it is likely line-buffered, you could
-attempt to read a whole line in the callback.
-
- static void
- stdin_readable_cb (struct ev_loop *loop, ev_io *w, int revents)
- {
- ev_io_stop (loop, w);
- .. read from stdin here (or from w->fd) and handle any I/O errors
- }
-
- ...
- struct ev_loop *loop = ev_default_init (0);
- ev_io stdin_readable;
- ev_io_init (&stdin_readable, stdin_readable_cb, STDIN_FILENO, EV_READ);
- ev_io_start (loop, &stdin_readable);
- ev_run (loop, 0);
-
-
-=head2 C<ev_timer> - relative and optionally repeating timeouts
-
-Timer watchers are simple relative timers that generate an event after a
-given time, and optionally repeating in regular intervals after that.
-
-The timers are based on real time, that is, if you register an event that
-times out after an hour and you reset your system clock to January last
-year, it will still time out after (roughly) one hour. "Roughly" because
-detecting time jumps is hard, and some inaccuracies are unavoidable (the
-monotonic clock option helps a lot here).
-
-The callback is guaranteed to be invoked only I<after> its timeout has
-passed (not I<at>, so on systems with very low-resolution clocks this
-might introduce a small delay). If multiple timers become ready during the
-same loop iteration then the ones with earlier time-out values are invoked
-before ones of the same priority with later time-out values (but this is
-no longer true when a callback calls C<ev_run> recursively).
-
-=head3 Be smart about timeouts
-
-Many real-world problems involve some kind of timeout, usually for error
-recovery. A typical example is an HTTP request - if the other side hangs,
-you want to raise some error after a while.
-
-What follows are some ways to handle this problem, from obvious and
-inefficient to smart and efficient.
-
-In the following, a 60 second activity timeout is assumed - a timeout that
-gets reset to 60 seconds each time there is activity (e.g. each time some
-data or other life sign was received).
-
-=over 4
-
-=item 1. Use a timer and stop, reinitialise and start it on activity.
-
-This is the most obvious, but not the most simple way: In the beginning,
-start the watcher:
-
- ev_timer_init (timer, callback, 60., 0.);
- ev_timer_start (loop, timer);
-
-Then, each time there is some activity, C<ev_timer_stop> it, initialise it
-and start it again:
-
- ev_timer_stop (loop, timer);
- ev_timer_set (timer, 60., 0.);
- ev_timer_start (loop, timer);
-
-This is relatively simple to implement, but means that each time there is
-some activity, libev will first have to remove the timer from its internal
-data structure and then add it again. Libev tries to be fast, but it's
-still not a constant-time operation.
-
-=item 2. Use a timer and re-start it with C<ev_timer_again> inactivity.
-
-This is the easiest way, and involves using C<ev_timer_again> instead of
-C<ev_timer_start>.
-
-To implement this, configure an C<ev_timer> with a C<repeat> value
-of C<60> and then call C<ev_timer_again> at start and each time you
-successfully read or write some data. If you go into an idle state where
-you do not expect data to travel on the socket, you can C<ev_timer_stop>
-the timer, and C<ev_timer_again> will automatically restart it if need be.
-
-That means you can ignore both the C<ev_timer_start> function and the
-C<after> argument to C<ev_timer_set>, and only ever use the C<repeat>
-member and C<ev_timer_again>.
-
-At start:
-
- ev_init (timer, callback);
- timer->repeat = 60.;
- ev_timer_again (loop, timer);
-
-Each time there is some activity:
-
- ev_timer_again (loop, timer);
-
-It is even possible to change the time-out on the fly, regardless of
-whether the watcher is active or not:
-
- timer->repeat = 30.;
- ev_timer_again (loop, timer);
-
-This is slightly more efficient then stopping/starting the timer each time
-you want to modify its timeout value, as libev does not have to completely
-remove and re-insert the timer from/into its internal data structure.
-
-It is, however, even simpler than the "obvious" way to do it.
-
-=item 3. Let the timer time out, but then re-arm it as required.
-
-This method is more tricky, but usually most efficient: Most timeouts are
-relatively long compared to the intervals between other activity - in
-our example, within 60 seconds, there are usually many I/O events with
-associated activity resets.
-
-In this case, it would be more efficient to leave the C<ev_timer> alone,
-but remember the time of last activity, and check for a real timeout only
-within the callback:
-
- ev_tstamp last_activity; // time of last activity
-
- static void
- callback (EV_P_ ev_timer *w, int revents)
- {
- ev_tstamp now = ev_now (EV_A);
- ev_tstamp timeout = last_activity + 60.;
-
- // if last_activity + 60. is older than now, we did time out
- if (timeout < now)
- {
- // timeout occurred, take action
- }
- else
- {
- // callback was invoked, but there was some activity, re-arm
- // the watcher to fire in last_activity + 60, which is
- // guaranteed to be in the future, so "again" is positive:
- w->repeat = timeout - now;
- ev_timer_again (EV_A_ w);
- }
- }
-
-To summarise the callback: first calculate the real timeout (defined
-as "60 seconds after the last activity"), then check if that time has
-been reached, which means something I<did>, in fact, time out. Otherwise
-the callback was invoked too early (C<timeout> is in the future), so
-re-schedule the timer to fire at that future time, to see if maybe we have
-a timeout then.
-
-Note how C<ev_timer_again> is used, taking advantage of the
-C<ev_timer_again> optimisation when the timer is already running.
-
-This scheme causes more callback invocations (about one every 60 seconds
-minus half the average time between activity), but virtually no calls to
-libev to change the timeout.
-
-To start the timer, simply initialise the watcher and set C<last_activity>
-to the current time (meaning we just have some activity :), then call the
-callback, which will "do the right thing" and start the timer:
-
- ev_init (timer, callback);
- last_activity = ev_now (loop);
- callback (loop, timer, EV_TIMER);
-
-And when there is some activity, simply store the current time in
-C<last_activity>, no libev calls at all:
-
- last_activity = ev_now (loop);
-
-This technique is slightly more complex, but in most cases where the
-time-out is unlikely to be triggered, much more efficient.
-
-Changing the timeout is trivial as well (if it isn't hard-coded in the
-callback :) - just change the timeout and invoke the callback, which will
-fix things for you.
-
-=item 4. Wee, just use a double-linked list for your timeouts.
-
-If there is not one request, but many thousands (millions...), all
-employing some kind of timeout with the same timeout value, then one can
-do even better:
-
-When starting the timeout, calculate the timeout value and put the timeout
-at the I<end> of the list.
-
-Then use an C<ev_timer> to fire when the timeout at the I<beginning> of
-the list is expected to fire (for example, using the technique #3).
-
-When there is some activity, remove the timer from the list, recalculate
-the timeout, append it to the end of the list again, and make sure to
-update the C<ev_timer> if it was taken from the beginning of the list.
-
-This way, one can manage an unlimited number of timeouts in O(1) time for
-starting, stopping and updating the timers, at the expense of a major
-complication, and having to use a constant timeout. The constant timeout
-ensures that the list stays sorted.
-
-=back
-
-So which method the best?
-
-Method #2 is a simple no-brain-required solution that is adequate in most
-situations. Method #3 requires a bit more thinking, but handles many cases
-better, and isn't very complicated either. In most case, choosing either
-one is fine, with #3 being better in typical situations.
-
-Method #1 is almost always a bad idea, and buys you nothing. Method #4 is
-rather complicated, but extremely efficient, something that really pays
-off after the first million or so of active timers, i.e. it's usually
-overkill :)
-
-=head3 The special problem of time updates
-
-Establishing the current time is a costly operation (it usually takes at
-least two system calls): EV therefore updates its idea of the current
-time only before and after C<ev_run> collects new events, which causes a
-growing difference between C<ev_now ()> and C<ev_time ()> when handling
-lots of events in one iteration.
-
-The relative timeouts are calculated relative to the C<ev_now ()>
-time. This is usually the right thing as this timestamp refers to the time
-of the event triggering whatever timeout you are modifying/starting. If
-you suspect event processing to be delayed and you I<need> to base the
-timeout on the current time, use something like this to adjust for this:
-
- ev_timer_set (&timer, after + ev_now () - ev_time (), 0.);
-
-If the event loop is suspended for a long time, you can also force an
-update of the time returned by C<ev_now ()> by calling C<ev_now_update
-()>.
-
-=head3 The special problems of suspended animation
-
-When you leave the server world it is quite customary to hit machines that
-can suspend/hibernate - what happens to the clocks during such a suspend?
-
-Some quick tests made with a Linux 2.6.28 indicate that a suspend freezes
-all processes, while the clocks (C<times>, C<CLOCK_MONOTONIC>) continue
-to run until the system is suspended, but they will not advance while the
-system is suspended. That means, on resume, it will be as if the program
-was frozen for a few seconds, but the suspend time will not be counted
-towards C<ev_timer> when a monotonic clock source is used. The real time
-clock advanced as expected, but if it is used as sole clocksource, then a
-long suspend would be detected as a time jump by libev, and timers would
-be adjusted accordingly.
-
-I would not be surprised to see different behaviour in different between
-operating systems, OS versions or even different hardware.
-
-The other form of suspend (job control, or sending a SIGSTOP) will see a
-time jump in the monotonic clocks and the realtime clock. If the program
-is suspended for a very long time, and monotonic clock sources are in use,
-then you can expect C<ev_timer>s to expire as the full suspension time
-will be counted towards the timers. When no monotonic clock source is in
-use, then libev will again assume a timejump and adjust accordingly.
-
-It might be beneficial for this latter case to call C<ev_suspend>
-and C<ev_resume> in code that handles C<SIGTSTP>, to at least get
-deterministic behaviour in this case (you can do nothing against
-C<SIGSTOP>).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_timer_init (ev_timer *, callback, ev_tstamp after, ev_tstamp repeat)
-
-=item ev_timer_set (ev_timer *, ev_tstamp after, ev_tstamp repeat)
-
-Configure the timer to trigger after C<after> seconds. If C<repeat>
-is C<0.>, then it will automatically be stopped once the timeout is
-reached. If it is positive, then the timer will automatically be
-configured to trigger again C<repeat> seconds later, again, and again,
-until stopped manually.
-
-The timer itself will do a best-effort at avoiding drift, that is, if
-you configure a timer to trigger every 10 seconds, then it will normally
-trigger at exactly 10 second intervals. If, however, your program cannot
-keep up with the timer (because it takes longer than those 10 seconds to
-do stuff) the timer will not fire more than once per event loop iteration.
-
-=item ev_timer_again (loop, ev_timer *)
-
-This will act as if the timer timed out and restart it again if it is
-repeating. The exact semantics are:
-
-If the timer is pending, its pending status is cleared.
-
-If the timer is started but non-repeating, stop it (as if it timed out).
-
-If the timer is repeating, either start it if necessary (with the
-C<repeat> value), or reset the running timer to the C<repeat> value.
-
-This sounds a bit complicated, see L<Be smart about timeouts>, above, for a
-usage example.
-
-=item ev_tstamp ev_timer_remaining (loop, ev_timer *)
-
-Returns the remaining time until a timer fires. If the timer is active,
-then this time is relative to the current event loop time, otherwise it's
-the timeout value currently configured.
-
-That is, after an C<ev_timer_set (w, 5, 7)>, C<ev_timer_remaining> returns
-C<5>. When the timer is started and one second passes, C<ev_timer_remaining>
-will return C<4>. When the timer expires and is restarted, it will return
-roughly C<7> (likely slightly less as callback invocation takes some time,
-too), and so on.
-
-=item ev_tstamp repeat [read-write]
-
-The current C<repeat> value. Will be used each time the watcher times out
-or C<ev_timer_again> is called, and determines the next timeout (if any),
-which is also when any modifications are taken into account.
-
-=back
-
-=head3 Examples
-
-Example: Create a timer that fires after 60 seconds.
-
- static void
- one_minute_cb (struct ev_loop *loop, ev_timer *w, int revents)
- {
- .. one minute over, w is actually stopped right here
- }
-
- ev_timer mytimer;
- ev_timer_init (&mytimer, one_minute_cb, 60., 0.);
- ev_timer_start (loop, &mytimer);
-
-Example: Create a timeout timer that times out after 10 seconds of
-inactivity.
-
- static void
- timeout_cb (struct ev_loop *loop, ev_timer *w, int revents)
- {
- .. ten seconds without any activity
- }
-
- ev_timer mytimer;
- ev_timer_init (&mytimer, timeout_cb, 0., 10.); /* note, only repeat used */
- ev_timer_again (&mytimer); /* start timer */
- ev_run (loop, 0);
-
- // and in some piece of code that gets executed on any "activity":
- // reset the timeout to start ticking again at 10 seconds
- ev_timer_again (&mytimer);
-
-
-=head2 C<ev_periodic> - to cron or not to cron?
-
-Periodic watchers are also timers of a kind, but they are very versatile
-(and unfortunately a bit complex).
-
-Unlike C<ev_timer>, periodic watchers are not based on real time (or
-relative time, the physical time that passes) but on wall clock time
-(absolute time, the thing you can read on your calender or clock). The
-difference is that wall clock time can run faster or slower than real
-time, and time jumps are not uncommon (e.g. when you adjust your
-wrist-watch).
-
-You can tell a periodic watcher to trigger after some specific point
-in time: for example, if you tell a periodic watcher to trigger "in 10
-seconds" (by specifying e.g. C<ev_now () + 10.>, that is, an absolute time
-not a delay) and then reset your system clock to January of the previous
-year, then it will take a year or more to trigger the event (unlike an
-C<ev_timer>, which would still trigger roughly 10 seconds after starting
-it, as it uses a relative timeout).
-
-C<ev_periodic> watchers can also be used to implement vastly more complex
-timers, such as triggering an event on each "midnight, local time", or
-other complicated rules. This cannot be done with C<ev_timer> watchers, as
-those cannot react to time jumps.
-
-As with timers, the callback is guaranteed to be invoked only when the
-point in time where it is supposed to trigger has passed. If multiple
-timers become ready during the same loop iteration then the ones with
-earlier time-out values are invoked before ones with later time-out values
-(but this is no longer true when a callback calls C<ev_run> recursively).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_periodic_init (ev_periodic *, callback, ev_tstamp offset, ev_tstamp interval, reschedule_cb)
-
-=item ev_periodic_set (ev_periodic *, ev_tstamp offset, ev_tstamp interval, reschedule_cb)
-
-Lots of arguments, let's sort it out... There are basically three modes of
-operation, and we will explain them from simplest to most complex:
-
-=over 4
-
-=item * absolute timer (offset = absolute time, interval = 0, reschedule_cb = 0)
-
-In this configuration the watcher triggers an event after the wall clock
-time C<offset> has passed. It will not repeat and will not adjust when a
-time jump occurs, that is, if it is to be run at January 1st 2011 then it
-will be stopped and invoked when the system clock reaches or surpasses
-this point in time.
-
-=item * repeating interval timer (offset = offset within interval, interval > 0, reschedule_cb = 0)
-
-In this mode the watcher will always be scheduled to time out at the next
-C<offset + N * interval> time (for some integer N, which can also be
-negative) and then repeat, regardless of any time jumps. The C<offset>
-argument is merely an offset into the C<interval> periods.
-
-This can be used to create timers that do not drift with respect to the
-system clock, for example, here is an C<ev_periodic> that triggers each
-hour, on the hour (with respect to UTC):
-
- ev_periodic_set (&periodic, 0., 3600., 0);
-
-This doesn't mean there will always be 3600 seconds in between triggers,
-but only that the callback will be called when the system time shows a
-full hour (UTC), or more correctly, when the system time is evenly divisible
-by 3600.
-
-Another way to think about it (for the mathematically inclined) is that
-C<ev_periodic> will try to run the callback in this mode at the next possible
-time where C<time = offset (mod interval)>, regardless of any time jumps.
-
-For numerical stability it is preferable that the C<offset> value is near
-C<ev_now ()> (the current time), but there is no range requirement for
-this value, and in fact is often specified as zero.
-
-Note also that there is an upper limit to how often a timer can fire (CPU
-speed for example), so if C<interval> is very small then timing stability
-will of course deteriorate. Libev itself tries to be exact to be about one
-millisecond (if the OS supports it and the machine is fast enough).
-
-=item * manual reschedule mode (offset ignored, interval ignored, reschedule_cb = callback)
-
-In this mode the values for C<interval> and C<offset> are both being
-ignored. Instead, each time the periodic watcher gets scheduled, the
-reschedule callback will be called with the watcher as first, and the
-current time as second argument.
-
-NOTE: I<This callback MUST NOT stop or destroy any periodic watcher, ever,
-or make ANY other event loop modifications whatsoever, unless explicitly
-allowed by documentation here>.
-
-If you need to stop it, return C<now + 1e30> (or so, fudge fudge) and stop
-it afterwards (e.g. by starting an C<ev_prepare> watcher, which is the
-only event loop modification you are allowed to do).
-
-The callback prototype is C<ev_tstamp (*reschedule_cb)(ev_periodic
-*w, ev_tstamp now)>, e.g.:
-
- static ev_tstamp
- my_rescheduler (ev_periodic *w, ev_tstamp now)
- {
- return now + 60.;
- }
-
-It must return the next time to trigger, based on the passed time value
-(that is, the lowest time value larger than to the second argument). It
-will usually be called just before the callback will be triggered, but
-might be called at other times, too.
-
-NOTE: I<< This callback must always return a time that is higher than or
-equal to the passed C<now> value >>.
-
-This can be used to create very complex timers, such as a timer that
-triggers on "next midnight, local time". To do this, you would calculate the
-next midnight after C<now> and return the timestamp value for this. How
-you do this is, again, up to you (but it is not trivial, which is the main
-reason I omitted it as an example).
-
-=back
-
-=item ev_periodic_again (loop, ev_periodic *)
-
-Simply stops and restarts the periodic watcher again. This is only useful
-when you changed some parameters or the reschedule callback would return
-a different time than the last time it was called (e.g. in a crond like
-program when the crontabs have changed).
-
-=item ev_tstamp ev_periodic_at (ev_periodic *)
-
-When active, returns the absolute time that the watcher is supposed
-to trigger next. This is not the same as the C<offset> argument to
-C<ev_periodic_set>, but indeed works even in interval and manual
-rescheduling modes.
-
-=item ev_tstamp offset [read-write]
-
-When repeating, this contains the offset value, otherwise this is the
-absolute point in time (the C<offset> value passed to C<ev_periodic_set>,
-although libev might modify this value for better numerical stability).
-
-Can be modified any time, but changes only take effect when the periodic
-timer fires or C<ev_periodic_again> is being called.
-
-=item ev_tstamp interval [read-write]
-
-The current interval value. Can be modified any time, but changes only
-take effect when the periodic timer fires or C<ev_periodic_again> is being
-called.
-
-=item ev_tstamp (*reschedule_cb)(ev_periodic *w, ev_tstamp now) [read-write]
-
-The current reschedule callback, or C<0>, if this functionality is
-switched off. Can be changed any time, but changes only take effect when
-the periodic timer fires or C<ev_periodic_again> is being called.
-
-=back
-
-=head3 Examples
-
-Example: Call a callback every hour, or, more precisely, whenever the
-system time is divisible by 3600. The callback invocation times have
-potentially a lot of jitter, but good long-term stability.
-
- static void
- clock_cb (struct ev_loop *loop, ev_periodic *w, int revents)
- {
- ... its now a full hour (UTC, or TAI or whatever your clock follows)
- }
-
- ev_periodic hourly_tick;
- ev_periodic_init (&hourly_tick, clock_cb, 0., 3600., 0);
- ev_periodic_start (loop, &hourly_tick);
-
-Example: The same as above, but use a reschedule callback to do it:
-
- #include <math.h>
-
- static ev_tstamp
- my_scheduler_cb (ev_periodic *w, ev_tstamp now)
- {
- return now + (3600. - fmod (now, 3600.));
- }
-
- ev_periodic_init (&hourly_tick, clock_cb, 0., 0., my_scheduler_cb);
-
-Example: Call a callback every hour, starting now:
-
- ev_periodic hourly_tick;
- ev_periodic_init (&hourly_tick, clock_cb,
- fmod (ev_now (loop), 3600.), 3600., 0);
- ev_periodic_start (loop, &hourly_tick);
-
-
-=head2 C<ev_signal> - signal me when a signal gets signalled!
-
-Signal watchers will trigger an event when the process receives a specific
-signal one or more times. Even though signals are very asynchronous, libev
-will try its best to deliver signals synchronously, i.e. as part of the
-normal event processing, like any other event.
-
-If you want signals to be delivered truly asynchronously, just use
-C<sigaction> as you would do without libev and forget about sharing
-the signal. You can even use C<ev_async> from a signal handler to
-synchronously wake up an event loop.
-
-You can configure as many watchers as you like for the same signal, but
-only within the same loop, i.e. you can watch for C<SIGINT> in your
-default loop and for C<SIGIO> in another loop, but you cannot watch for
-C<SIGINT> in both the default loop and another loop at the same time. At
-the moment, C<SIGCHLD> is permanently tied to the default loop.
-
-When the first watcher gets started will libev actually register something
-with the kernel (thus it coexists with your own signal handlers as long as
-you don't register any with libev for the same signal).
-
-If possible and supported, libev will install its handlers with
-C<SA_RESTART> (or equivalent) behaviour enabled, so system calls should
-not be unduly interrupted. If you have a problem with system calls getting
-interrupted by signals you can block all signals in an C<ev_check> watcher
-and unblock them in an C<ev_prepare> watcher.
-
-=head3 The special problem of inheritance over fork/execve/pthread_create
-
-Both the signal mask (C<sigprocmask>) and the signal disposition
-(C<sigaction>) are unspecified after starting a signal watcher (and after
-stopping it again), that is, libev might or might not block the signal,
-and might or might not set or restore the installed signal handler (but
-see C<EVFLAG_NOSIGMASK>).
-
-While this does not matter for the signal disposition (libev never
-sets signals to C<SIG_IGN>, so handlers will be reset to C<SIG_DFL> on
-C<execve>), this matters for the signal mask: many programs do not expect
-certain signals to be blocked.
-
-This means that before calling C<exec> (from the child) you should reset
-the signal mask to whatever "default" you expect (all clear is a good
-choice usually).
-
-The simplest way to ensure that the signal mask is reset in the child is
-to install a fork handler with C<pthread_atfork> that resets it. That will
-catch fork calls done by libraries (such as the libc) as well.
-
-In current versions of libev, the signal will not be blocked indefinitely
-unless you use the C<signalfd> API (C<EV_SIGNALFD>). While this reduces
-the window of opportunity for problems, it will not go away, as libev
-I<has> to modify the signal mask, at least temporarily.
-
-So I can't stress this enough: I<If you do not reset your signal mask when
-you expect it to be empty, you have a race condition in your code>. This
-is not a libev-specific thing, this is true for most event libraries.
-
-=head3 The special problem of threads signal handling
-
-POSIX threads has problematic signal handling semantics, specifically,
-a lot of functionality (sigfd, sigwait etc.) only really works if all
-threads in a process block signals, which is hard to achieve.
-
-When you want to use sigwait (or mix libev signal handling with your own
-for the same signals), you can tackle this problem by globally blocking
-all signals before creating any threads (or creating them with a fully set
-sigprocmask) and also specifying the C<EVFLAG_NOSIGMASK> when creating
-loops. Then designate one thread as "signal receiver thread" which handles
-these signals. You can pass on any signals that libev might be interested
-in by calling C<ev_feed_signal>.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_signal_init (ev_signal *, callback, int signum)
-
-=item ev_signal_set (ev_signal *, int signum)
-
-Configures the watcher to trigger on the given signal number (usually one
-of the C<SIGxxx> constants).
-
-=item int signum [read-only]
-
-The signal the watcher watches out for.
-
-=back
-
-=head3 Examples
-
-Example: Try to exit cleanly on SIGINT.
-
- static void
- sigint_cb (struct ev_loop *loop, ev_signal *w, int revents)
- {
- ev_break (loop, EVBREAK_ALL);
- }
-
- ev_signal signal_watcher;
- ev_signal_init (&signal_watcher, sigint_cb, SIGINT);
- ev_signal_start (loop, &signal_watcher);
-
-
-=head2 C<ev_child> - watch out for process status changes
-
-Child watchers trigger when your process receives a SIGCHLD in response to
-some child status changes (most typically when a child of yours dies or
-exits). It is permissible to install a child watcher I<after> the child
-has been forked (which implies it might have already exited), as long
-as the event loop isn't entered (or is continued from a watcher), i.e.,
-forking and then immediately registering a watcher for the child is fine,
-but forking and registering a watcher a few event loop iterations later or
-in the next callback invocation is not.
-
-Only the default event loop is capable of handling signals, and therefore
-you can only register child watchers in the default event loop.
-
-Due to some design glitches inside libev, child watchers will always be
-handled at maximum priority (their priority is set to C<EV_MAXPRI> by
-libev)
-
-=head3 Process Interaction
-
-Libev grabs C<SIGCHLD> as soon as the default event loop is
-initialised. This is necessary to guarantee proper behaviour even if the
-first child watcher is started after the child exits. The occurrence
-of C<SIGCHLD> is recorded asynchronously, but child reaping is done
-synchronously as part of the event loop processing. Libev always reaps all
-children, even ones not watched.
-
-=head3 Overriding the Built-In Processing
-
-Libev offers no special support for overriding the built-in child
-processing, but if your application collides with libev's default child
-handler, you can override it easily by installing your own handler for
-C<SIGCHLD> after initialising the default loop, and making sure the
-default loop never gets destroyed. You are encouraged, however, to use an
-event-based approach to child reaping and thus use libev's support for
-that, so other libev users can use C<ev_child> watchers freely.
-
-=head3 Stopping the Child Watcher
-
-Currently, the child watcher never gets stopped, even when the
-child terminates, so normally one needs to stop the watcher in the
-callback. Future versions of libev might stop the watcher automatically
-when a child exit is detected (calling C<ev_child_stop> twice is not a
-problem).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_child_init (ev_child *, callback, int pid, int trace)
-
-=item ev_child_set (ev_child *, int pid, int trace)
-
-Configures the watcher to wait for status changes of process C<pid> (or
-I<any> process if C<pid> is specified as C<0>). The callback can look
-at the C<rstatus> member of the C<ev_child> watcher structure to see
-the status word (use the macros from C<sys/wait.h> and see your systems
-C<waitpid> documentation). The C<rpid> member contains the pid of the
-process causing the status change. C<trace> must be either C<0> (only
-activate the watcher when the process terminates) or C<1> (additionally
-activate the watcher when the process is stopped or continued).
-
-=item int pid [read-only]
-
-The process id this watcher watches out for, or C<0>, meaning any process id.
-
-=item int rpid [read-write]
-
-The process id that detected a status change.
-
-=item int rstatus [read-write]
-
-The process exit/trace status caused by C<rpid> (see your systems
-C<waitpid> and C<sys/wait.h> documentation for details).
-
-=back
-
-=head3 Examples
-
-Example: C<fork()> a new process and install a child handler to wait for
-its completion.
-
- ev_child cw;
-
- static void
- child_cb (EV_P_ ev_child *w, int revents)
- {
- ev_child_stop (EV_A_ w);
- printf ("process %d exited with status %x\n", w->rpid, w->rstatus);
- }
-
- pid_t pid = fork ();
-
- if (pid < 0)
- // error
- else if (pid == 0)
- {
- // the forked child executes here
- exit (1);
- }
- else
- {
- ev_child_init (&cw, child_cb, pid, 0);
- ev_child_start (EV_DEFAULT_ &cw);
- }
-
-
-=head2 C<ev_stat> - did the file attributes just change?
-
-This watches a file system path for attribute changes. That is, it calls
-C<stat> on that path in regular intervals (or when the OS says it changed)
-and sees if it changed compared to the last time, invoking the callback if
-it did.
-
-The path does not need to exist: changing from "path exists" to "path does
-not exist" is a status change like any other. The condition "path does not
-exist" (or more correctly "path cannot be stat'ed") is signified by the
-C<st_nlink> field being zero (which is otherwise always forced to be at
-least one) and all the other fields of the stat buffer having unspecified
-contents.
-
-The path I<must not> end in a slash or contain special components such as
-C<.> or C<..>. The path I<should> be absolute: If it is relative and
-your working directory changes, then the behaviour is undefined.
-
-Since there is no portable change notification interface available, the
-portable implementation simply calls C<stat(2)> regularly on the path
-to see if it changed somehow. You can specify a recommended polling
-interval for this case. If you specify a polling interval of C<0> (highly
-recommended!) then a I<suitable, unspecified default> value will be used
-(which you can expect to be around five seconds, although this might
-change dynamically). Libev will also impose a minimum interval which is
-currently around C<0.1>, but that's usually overkill.
-
-This watcher type is not meant for massive numbers of stat watchers,
-as even with OS-supported change notifications, this can be
-resource-intensive.
-
-At the time of this writing, the only OS-specific interface implemented
-is the Linux inotify interface (implementing kqueue support is left as an
-exercise for the reader. Note, however, that the author sees no way of
-implementing C<ev_stat> semantics with kqueue, except as a hint).
-
-=head3 ABI Issues (Largefile Support)
-
-Libev by default (unless the user overrides this) uses the default
-compilation environment, which means that on systems with large file
-support disabled by default, you get the 32 bit version of the stat
-structure. When using the library from programs that change the ABI to
-use 64 bit file offsets the programs will fail. In that case you have to
-compile libev with the same flags to get binary compatibility. This is
-obviously the case with any flags that change the ABI, but the problem is
-most noticeably displayed with ev_stat and large file support.
-
-The solution for this is to lobby your distribution maker to make large
-file interfaces available by default (as e.g. FreeBSD does) and not
-optional. Libev cannot simply switch on large file support because it has
-to exchange stat structures with application programs compiled using the
-default compilation environment.
-
-=head3 Inotify and Kqueue
-
-When C<inotify (7)> support has been compiled into libev and present at
-runtime, it will be used to speed up change detection where possible. The
-inotify descriptor will be created lazily when the first C<ev_stat>
-watcher is being started.
-
-Inotify presence does not change the semantics of C<ev_stat> watchers
-except that changes might be detected earlier, and in some cases, to avoid
-making regular C<stat> calls. Even in the presence of inotify support
-there are many cases where libev has to resort to regular C<stat> polling,
-but as long as kernel 2.6.25 or newer is used (2.6.24 and older have too
-many bugs), the path exists (i.e. stat succeeds), and the path resides on
-a local filesystem (libev currently assumes only ext2/3, jfs, reiserfs and
-xfs are fully working) libev usually gets away without polling.
-
-There is no support for kqueue, as apparently it cannot be used to
-implement this functionality, due to the requirement of having a file
-descriptor open on the object at all times, and detecting renames, unlinks
-etc. is difficult.
-
-=head3 C<stat ()> is a synchronous operation
-
-Libev doesn't normally do any kind of I/O itself, and so is not blocking
-the process. The exception are C<ev_stat> watchers - those call C<stat
-()>, which is a synchronous operation.
-
-For local paths, this usually doesn't matter: unless the system is very
-busy or the intervals between stat's are large, a stat call will be fast,
-as the path data is usually in memory already (except when starting the
-watcher).
-
-For networked file systems, calling C<stat ()> can block an indefinite
-time due to network issues, and even under good conditions, a stat call
-often takes multiple milliseconds.
-
-Therefore, it is best to avoid using C<ev_stat> watchers on networked
-paths, although this is fully supported by libev.
-
-=head3 The special problem of stat time resolution
-
-The C<stat ()> system call only supports full-second resolution portably,
-and even on systems where the resolution is higher, most file systems
-still only support whole seconds.
-
-That means that, if the time is the only thing that changes, you can
-easily miss updates: on the first update, C<ev_stat> detects a change and
-calls your callback, which does something. When there is another update
-within the same second, C<ev_stat> will be unable to detect unless the
-stat data does change in other ways (e.g. file size).
-
-The solution to this is to delay acting on a change for slightly more
-than a second (or till slightly after the next full second boundary), using
-a roughly one-second-delay C<ev_timer> (e.g. C<ev_timer_set (w, 0., 1.02);
-ev_timer_again (loop, w)>).
-
-The C<.02> offset is added to work around small timing inconsistencies
-of some operating systems (where the second counter of the current time
-might be be delayed. One such system is the Linux kernel, where a call to
-C<gettimeofday> might return a timestamp with a full second later than
-a subsequent C<time> call - if the equivalent of C<time ()> is used to
-update file times then there will be a small window where the kernel uses
-the previous second to update file times but libev might already execute
-the timer callback).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_stat_init (ev_stat *, callback, const char *path, ev_tstamp interval)
-
-=item ev_stat_set (ev_stat *, const char *path, ev_tstamp interval)
-
-Configures the watcher to wait for status changes of the given
-C<path>. The C<interval> is a hint on how quickly a change is expected to
-be detected and should normally be specified as C<0> to let libev choose
-a suitable value. The memory pointed to by C<path> must point to the same
-path for as long as the watcher is active.
-
-The callback will receive an C<EV_STAT> event when a change was detected,
-relative to the attributes at the time the watcher was started (or the
-last change was detected).
-
-=item ev_stat_stat (loop, ev_stat *)
-
-Updates the stat buffer immediately with new values. If you change the
-watched path in your callback, you could call this function to avoid
-detecting this change (while introducing a race condition if you are not
-the only one changing the path). Can also be useful simply to find out the
-new values.
-
-=item ev_statdata attr [read-only]
-
-The most-recently detected attributes of the file. Although the type is
-C<ev_statdata>, this is usually the (or one of the) C<struct stat> types
-suitable for your system, but you can only rely on the POSIX-standardised
-members to be present. If the C<st_nlink> member is C<0>, then there was
-some error while C<stat>ing the file.
-
-=item ev_statdata prev [read-only]
-
-The previous attributes of the file. The callback gets invoked whenever
-C<prev> != C<attr>, or, more precisely, one or more of these members
-differ: C<st_dev>, C<st_ino>, C<st_mode>, C<st_nlink>, C<st_uid>,
-C<st_gid>, C<st_rdev>, C<st_size>, C<st_atime>, C<st_mtime>, C<st_ctime>.
-
-=item ev_tstamp interval [read-only]
-
-The specified interval.
-
-=item const char *path [read-only]
-
-The file system path that is being watched.
-
-=back
-
-=head3 Examples
-
-Example: Watch C</etc/passwd> for attribute changes.
-
- static void
- passwd_cb (struct ev_loop *loop, ev_stat *w, int revents)
- {
- /* /etc/passwd changed in some way */
- if (w->attr.st_nlink)
- {
- printf ("passwd current size %ld\n", (long)w->attr.st_size);
- printf ("passwd current atime %ld\n", (long)w->attr.st_mtime);
- printf ("passwd current mtime %ld\n", (long)w->attr.st_mtime);
- }
- else
- /* you shalt not abuse printf for puts */
- puts ("wow, /etc/passwd is not there, expect problems. "
- "if this is windows, they already arrived\n");
- }
-
- ...
- ev_stat passwd;
-
- ev_stat_init (&passwd, passwd_cb, "/etc/passwd", 0.);
- ev_stat_start (loop, &passwd);
-
-Example: Like above, but additionally use a one-second delay so we do not
-miss updates (however, frequent updates will delay processing, too, so
-one might do the work both on C<ev_stat> callback invocation I<and> on
-C<ev_timer> callback invocation).
-
- static ev_stat passwd;
- static ev_timer timer;
-
- static void
- timer_cb (EV_P_ ev_timer *w, int revents)
- {
- ev_timer_stop (EV_A_ w);
-
- /* now it's one second after the most recent passwd change */
- }
-
- static void
- stat_cb (EV_P_ ev_stat *w, int revents)
- {
- /* reset the one-second timer */
- ev_timer_again (EV_A_ &timer);
- }
-
- ...
- ev_stat_init (&passwd, stat_cb, "/etc/passwd", 0.);
- ev_stat_start (loop, &passwd);
- ev_timer_init (&timer, timer_cb, 0., 1.02);
-
-
-=head2 C<ev_idle> - when you've got nothing better to do...
-
-Idle watchers trigger events when no other events of the same or higher
-priority are pending (prepare, check and other idle watchers do not count
-as receiving "events").
-
-That is, as long as your process is busy handling sockets or timeouts
-(or even signals, imagine) of the same or higher priority it will not be
-triggered. But when your process is idle (or only lower-priority watchers
-are pending), the idle watchers are being called once per event loop
-iteration - until stopped, that is, or your process receives more events
-and becomes busy again with higher priority stuff.
-
-The most noteworthy effect is that as long as any idle watchers are
-active, the process will not block when waiting for new events.
-
-Apart from keeping your process non-blocking (which is a useful
-effect on its own sometimes), idle watchers are a good place to do
-"pseudo-background processing", or delay processing stuff to after the
-event loop has handled all outstanding events.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_idle_init (ev_idle *, callback)
-
-Initialises and configures the idle watcher - it has no parameters of any
-kind. There is a C<ev_idle_set> macro, but using it is utterly pointless,
-believe me.
-
-=back
-
-=head3 Examples
-
-Example: Dynamically allocate an C<ev_idle> watcher, start it, and in the
-callback, free it. Also, use no error checking, as usual.
-
- static void
- idle_cb (struct ev_loop *loop, ev_idle *w, int revents)
- {
- free (w);
- // now do something you wanted to do when the program has
- // no longer anything immediate to do.
- }
-
- ev_idle *idle_watcher = malloc (sizeof (ev_idle));
- ev_idle_init (idle_watcher, idle_cb);
- ev_idle_start (loop, idle_watcher);
-
-
-=head2 C<ev_prepare> and C<ev_check> - customise your event loop!
-
-Prepare and check watchers are usually (but not always) used in pairs:
-prepare watchers get invoked before the process blocks and check watchers
-afterwards.
-
-You I<must not> call C<ev_run> or similar functions that enter
-the current event loop from either C<ev_prepare> or C<ev_check>
-watchers. Other loops than the current one are fine, however. The
-rationale behind this is that you do not need to check for recursion in
-those watchers, i.e. the sequence will always be C<ev_prepare>, blocking,
-C<ev_check> so if you have one watcher of each kind they will always be
-called in pairs bracketing the blocking call.
-
-Their main purpose is to integrate other event mechanisms into libev and
-their use is somewhat advanced. They could be used, for example, to track
-variable changes, implement your own watchers, integrate net-snmp or a
-coroutine library and lots more. They are also occasionally useful if
-you cache some data and want to flush it before blocking (for example,
-in X programs you might want to do an C<XFlush ()> in an C<ev_prepare>
-watcher).
-
-This is done by examining in each prepare call which file descriptors
-need to be watched by the other library, registering C<ev_io> watchers
-for them and starting an C<ev_timer> watcher for any timeouts (many
-libraries provide exactly this functionality). Then, in the check watcher,
-you check for any events that occurred (by checking the pending status
-of all watchers and stopping them) and call back into the library. The
-I/O and timer callbacks will never actually be called (but must be valid
-nevertheless, because you never know, you know?).
-
-As another example, the Perl Coro module uses these hooks to integrate
-coroutines into libev programs, by yielding to other active coroutines
-during each prepare and only letting the process block if no coroutines
-are ready to run (it's actually more complicated: it only runs coroutines
-with priority higher than or equal to the event loop and one coroutine
-of lower priority, but only once, using idle watchers to keep the event
-loop from blocking if lower-priority coroutines are active, thus mapping
-low-priority coroutines to idle/background tasks).
-
-It is recommended to give C<ev_check> watchers highest (C<EV_MAXPRI>)
-priority, to ensure that they are being run before any other watchers
-after the poll (this doesn't matter for C<ev_prepare> watchers).
-
-Also, C<ev_check> watchers (and C<ev_prepare> watchers, too) should not
-activate ("feed") events into libev. While libev fully supports this, they
-might get executed before other C<ev_check> watchers did their job. As
-C<ev_check> watchers are often used to embed other (non-libev) event
-loops those other event loops might be in an unusable state until their
-C<ev_check> watcher ran (always remind yourself to coexist peacefully with
-others).
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_prepare_init (ev_prepare *, callback)
-
-=item ev_check_init (ev_check *, callback)
-
-Initialises and configures the prepare or check watcher - they have no
-parameters of any kind. There are C<ev_prepare_set> and C<ev_check_set>
-macros, but using them is utterly, utterly, utterly and completely
-pointless.
-
-=back
-
-=head3 Examples
-
-There are a number of principal ways to embed other event loops or modules
-into libev. Here are some ideas on how to include libadns into libev
-(there is a Perl module named C<EV::ADNS> that does this, which you could
-use as a working example. Another Perl module named C<EV::Glib> embeds a
-Glib main context into libev, and finally, C<Glib::EV> embeds EV into the
-Glib event loop).
-
-Method 1: Add IO watchers and a timeout watcher in a prepare handler,
-and in a check watcher, destroy them and call into libadns. What follows
-is pseudo-code only of course. This requires you to either use a low
-priority for the check watcher or use C<ev_clear_pending> explicitly, as
-the callbacks for the IO/timeout watchers might not have been called yet.
-
- static ev_io iow [nfd];
- static ev_timer tw;
-
- static void
- io_cb (struct ev_loop *loop, ev_io *w, int revents)
- {
- }
-
- // create io watchers for each fd and a timer before blocking
- static void
- adns_prepare_cb (struct ev_loop *loop, ev_prepare *w, int revents)
- {
- int timeout = 3600000;
- struct pollfd fds [nfd];
- // actual code will need to loop here and realloc etc.
- adns_beforepoll (ads, fds, &nfd, &timeout, timeval_from (ev_time ()));
-
- /* the callback is illegal, but won't be called as we stop during check */
- ev_timer_init (&tw, 0, timeout * 1e-3, 0.);
- ev_timer_start (loop, &tw);
-
- // create one ev_io per pollfd
- for (int i = 0; i < nfd; ++i)
- {
- ev_io_init (iow + i, io_cb, fds [i].fd,
- ((fds [i].events & POLLIN ? EV_READ : 0)
- | (fds [i].events & POLLOUT ? EV_WRITE : 0)));
-
- fds [i].revents = 0;
- ev_io_start (loop, iow + i);
- }
- }
-
- // stop all watchers after blocking
- static void
- adns_check_cb (struct ev_loop *loop, ev_check *w, int revents)
- {
- ev_timer_stop (loop, &tw);
-
- for (int i = 0; i < nfd; ++i)
- {
- // set the relevant poll flags
- // could also call adns_processreadable etc. here
- struct pollfd *fd = fds + i;
- int revents = ev_clear_pending (iow + i);
- if (revents & EV_READ ) fd->revents |= fd->events & POLLIN;
- if (revents & EV_WRITE) fd->revents |= fd->events & POLLOUT;
-
- // now stop the watcher
- ev_io_stop (loop, iow + i);
- }
-
- adns_afterpoll (adns, fds, nfd, timeval_from (ev_now (loop));
- }
-
-Method 2: This would be just like method 1, but you run C<adns_afterpoll>
-in the prepare watcher and would dispose of the check watcher.
-
-Method 3: If the module to be embedded supports explicit event
-notification (libadns does), you can also make use of the actual watcher
-callbacks, and only destroy/create the watchers in the prepare watcher.
-
- static void
- timer_cb (EV_P_ ev_timer *w, int revents)
- {
- adns_state ads = (adns_state)w->data;
- update_now (EV_A);
-
- adns_processtimeouts (ads, &tv_now);
- }
-
- static void
- io_cb (EV_P_ ev_io *w, int revents)
- {
- adns_state ads = (adns_state)w->data;
- update_now (EV_A);
-
- if (revents & EV_READ ) adns_processreadable (ads, w->fd, &tv_now);
- if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now);
- }
-
- // do not ever call adns_afterpoll
-
-Method 4: Do not use a prepare or check watcher because the module you
-want to embed is not flexible enough to support it. Instead, you can
-override their poll function. The drawback with this solution is that the
-main loop is now no longer controllable by EV. The C<Glib::EV> module uses
-this approach, effectively embedding EV as a client into the horrible
-libglib event loop.
-
- static gint
- event_poll_func (GPollFD *fds, guint nfds, gint timeout)
- {
- int got_events = 0;
-
- for (n = 0; n < nfds; ++n)
- // create/start io watcher that sets the relevant bits in fds[n] and increment got_events
-
- if (timeout >= 0)
- // create/start timer
-
- // poll
- ev_run (EV_A_ 0);
-
- // stop timer again
- if (timeout >= 0)
- ev_timer_stop (EV_A_ &to);
-
- // stop io watchers again - their callbacks should have set
- for (n = 0; n < nfds; ++n)
- ev_io_stop (EV_A_ iow [n]);
-
- return got_events;
- }
-
-
-=head2 C<ev_embed> - when one backend isn't enough...
-
-This is a rather advanced watcher type that lets you embed one event loop
-into another (currently only C<ev_io> events are supported in the embedded
-loop, other types of watchers might be handled in a delayed or incorrect
-fashion and must not be used).
-
-There are primarily two reasons you would want that: work around bugs and
-prioritise I/O.
-
-As an example for a bug workaround, the kqueue backend might only support
-sockets on some platform, so it is unusable as generic backend, but you
-still want to make use of it because you have many sockets and it scales
-so nicely. In this case, you would create a kqueue-based loop and embed
-it into your default loop (which might use e.g. poll). Overall operation
-will be a bit slower because first libev has to call C<poll> and then
-C<kevent>, but at least you can use both mechanisms for what they are
-best: C<kqueue> for scalable sockets and C<poll> if you want it to work :)
-
-As for prioritising I/O: under rare circumstances you have the case where
-some fds have to be watched and handled very quickly (with low latency),
-and even priorities and idle watchers might have too much overhead. In
-this case you would put all the high priority stuff in one loop and all
-the rest in a second one, and embed the second one in the first.
-
-As long as the watcher is active, the callback will be invoked every
-time there might be events pending in the embedded loop. The callback
-must then call C<ev_embed_sweep (mainloop, watcher)> to make a single
-sweep and invoke their callbacks (the callback doesn't need to invoke the
-C<ev_embed_sweep> function directly, it could also start an idle watcher
-to give the embedded loop strictly lower priority for example).
-
-You can also set the callback to C<0>, in which case the embed watcher
-will automatically execute the embedded loop sweep whenever necessary.
-
-Fork detection will be handled transparently while the C<ev_embed> watcher
-is active, i.e., the embedded loop will automatically be forked when the
-embedding loop forks. In other cases, the user is responsible for calling
-C<ev_loop_fork> on the embedded loop.
-
-Unfortunately, not all backends are embeddable: only the ones returned by
-C<ev_embeddable_backends> are, which, unfortunately, does not include any
-portable one.
-
-So when you want to use this feature you will always have to be prepared
-that you cannot get an embeddable loop. The recommended way to get around
-this is to have a separate variables for your embeddable loop, try to
-create it, and if that fails, use the normal loop for everything.
-
-=head3 C<ev_embed> and fork
-
-While the C<ev_embed> watcher is running, forks in the embedding loop will
-automatically be applied to the embedded loop as well, so no special
-fork handling is required in that case. When the watcher is not running,
-however, it is still the task of the libev user to call C<ev_loop_fork ()>
-as applicable.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_embed_init (ev_embed *, callback, struct ev_loop *embedded_loop)
-
-=item ev_embed_set (ev_embed *, callback, struct ev_loop *embedded_loop)
-
-Configures the watcher to embed the given loop, which must be
-embeddable. If the callback is C<0>, then C<ev_embed_sweep> will be
-invoked automatically, otherwise it is the responsibility of the callback
-to invoke it (it will continue to be called until the sweep has been done,
-if you do not want that, you need to temporarily stop the embed watcher).
-
-=item ev_embed_sweep (loop, ev_embed *)
-
-Make a single, non-blocking sweep over the embedded loop. This works
-similarly to C<ev_run (embedded_loop, EVRUN_NOWAIT)>, but in the most
-appropriate way for embedded loops.
-
-=item struct ev_loop *other [read-only]
-
-The embedded event loop.
-
-=back
-
-=head3 Examples
-
-Example: Try to get an embeddable event loop and embed it into the default
-event loop. If that is not possible, use the default loop. The default
-loop is stored in C<loop_hi>, while the embeddable loop is stored in
-C<loop_lo> (which is C<loop_hi> in the case no embeddable loop can be
-used).
-
- struct ev_loop *loop_hi = ev_default_init (0);
- struct ev_loop *loop_lo = 0;
- ev_embed embed;
-
- // see if there is a chance of getting one that works
- // (remember that a flags value of 0 means autodetection)
- loop_lo = ev_embeddable_backends () & ev_recommended_backends ()
- ? ev_loop_new (ev_embeddable_backends () & ev_recommended_backends ())
- : 0;
-
- // if we got one, then embed it, otherwise default to loop_hi
- if (loop_lo)
- {
- ev_embed_init (&embed, 0, loop_lo);
- ev_embed_start (loop_hi, &embed);
- }
- else
- loop_lo = loop_hi;
-
-Example: Check if kqueue is available but not recommended and create
-a kqueue backend for use with sockets (which usually work with any
-kqueue implementation). Store the kqueue/socket-only event loop in
-C<loop_socket>. (One might optionally use C<EVFLAG_NOENV>, too).
-
- struct ev_loop *loop = ev_default_init (0);
- struct ev_loop *loop_socket = 0;
- ev_embed embed;
-
- if (ev_supported_backends () & ~ev_recommended_backends () & EVBACKEND_KQUEUE)
- if ((loop_socket = ev_loop_new (EVBACKEND_KQUEUE))
- {
- ev_embed_init (&embed, 0, loop_socket);
- ev_embed_start (loop, &embed);
- }
-
- if (!loop_socket)
- loop_socket = loop;
-
- // now use loop_socket for all sockets, and loop for everything else
-
-
-=head2 C<ev_fork> - the audacity to resume the event loop after a fork
-
-Fork watchers are called when a C<fork ()> was detected (usually because
-whoever is a good citizen cared to tell libev about it by calling
-C<ev_default_fork> or C<ev_loop_fork>). The invocation is done before the
-event loop blocks next and before C<ev_check> watchers are being called,
-and only in the child after the fork. If whoever good citizen calling
-C<ev_default_fork> cheats and calls it in the wrong process, the fork
-handlers will be invoked, too, of course.
-
-=head3 The special problem of life after fork - how is it possible?
-
-Most uses of C<fork()> consist of forking, then some simple calls to set
-up/change the process environment, followed by a call to C<exec()>. This
-sequence should be handled by libev without any problems.
-
-This changes when the application actually wants to do event handling
-in the child, or both parent in child, in effect "continuing" after the
-fork.
-
-The default mode of operation (for libev, with application help to detect
-forks) is to duplicate all the state in the child, as would be expected
-when I<either> the parent I<or> the child process continues.
-
-When both processes want to continue using libev, then this is usually the
-wrong result. In that case, usually one process (typically the parent) is
-supposed to continue with all watchers in place as before, while the other
-process typically wants to start fresh, i.e. without any active watchers.
-
-The cleanest and most efficient way to achieve that with libev is to
-simply create a new event loop, which of course will be "empty", and
-use that for new watchers. This has the advantage of not touching more
-memory than necessary, and thus avoiding the copy-on-write, and the
-disadvantage of having to use multiple event loops (which do not support
-signal watchers).
-
-When this is not possible, or you want to use the default loop for
-other reasons, then in the process that wants to start "fresh", call
-C<ev_loop_destroy (EV_DEFAULT)> followed by C<ev_default_loop (...)>.
-Destroying the default loop will "orphan" (not stop) all registered
-watchers, so you have to be careful not to execute code that modifies
-those watchers. Note also that in that case, you have to re-register any
-signal watchers.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_fork_init (ev_fork *, callback)
-
-Initialises and configures the fork watcher - it has no parameters of any
-kind. There is a C<ev_fork_set> macro, but using it is utterly pointless,
-really.
-
-=back
-
-
-=head2 C<ev_cleanup> - even the best things end
-
-Cleanup watchers are called just before the event loop is being destroyed
-by a call to C<ev_loop_destroy>.
-
-While there is no guarantee that the event loop gets destroyed, cleanup
-watchers provide a convenient method to install cleanup hooks for your
-program, worker threads and so on - you just to make sure to destroy the
-loop when you want them to be invoked.
-
-Cleanup watchers are invoked in the same way as any other watcher. Unlike
-all other watchers, they do not keep a reference to the event loop (which
-makes a lot of sense if you think about it). Like all other watchers, you
-can call libev functions in the callback, except C<ev_cleanup_start>.
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_cleanup_init (ev_cleanup *, callback)
-
-Initialises and configures the cleanup watcher - it has no parameters of
-any kind. There is a C<ev_cleanup_set> macro, but using it is utterly
-pointless, I assure you.
-
-=back
-
-Example: Register an atexit handler to destroy the default loop, so any
-cleanup functions are called.
-
- static void
- program_exits (void)
- {
- ev_loop_destroy (EV_DEFAULT_UC);
- }
-
- ...
- atexit (program_exits);
-
-
-=head2 C<ev_async> - how to wake up an event loop
-
-In general, you cannot use an C<ev_loop> from multiple threads or other
-asynchronous sources such as signal handlers (as opposed to multiple event
-loops - those are of course safe to use in different threads).
-
-Sometimes, however, you need to wake up an event loop you do not control,
-for example because it belongs to another thread. This is what C<ev_async>
-watchers do: as long as the C<ev_async> watcher is active, you can signal
-it by calling C<ev_async_send>, which is thread- and signal safe.
-
-This functionality is very similar to C<ev_signal> watchers, as signals,
-too, are asynchronous in nature, and signals, too, will be compressed
-(i.e. the number of callback invocations may be less than the number of
-C<ev_async_sent> calls). In fact, you could use signal watchers as a kind
-of "global async watchers" by using a watcher on an otherwise unused
-signal, and C<ev_feed_signal> to signal this watcher from another thread,
-even without knowing which loop owns the signal.
-
-Unlike C<ev_signal> watchers, C<ev_async> works with any event loop, not
-just the default loop.
-
-=head3 Queueing
-
-C<ev_async> does not support queueing of data in any way. The reason
-is that the author does not know of a simple (or any) algorithm for a
-multiple-writer-single-reader queue that works in all cases and doesn't
-need elaborate support such as pthreads or unportable memory access
-semantics.
-
-That means that if you want to queue data, you have to provide your own
-queue. But at least I can tell you how to implement locking around your
-queue:
-
-=over 4
-
-=item queueing from a signal handler context
-
-To implement race-free queueing, you simply add to the queue in the signal
-handler but you block the signal handler in the watcher callback. Here is
-an example that does that for some fictitious SIGUSR1 handler:
-
- static ev_async mysig;
-
- static void
- sigusr1_handler (void)
- {
- sometype data;
-
- // no locking etc.
- queue_put (data);
- ev_async_send (EV_DEFAULT_ &mysig);
- }
-
- static void
- mysig_cb (EV_P_ ev_async *w, int revents)
- {
- sometype data;
- sigset_t block, prev;
-
- sigemptyset (&block);
- sigaddset (&block, SIGUSR1);
- sigprocmask (SIG_BLOCK, &block, &prev);
-
- while (queue_get (&data))
- process (data);
-
- if (sigismember (&prev, SIGUSR1)
- sigprocmask (SIG_UNBLOCK, &block, 0);
- }
-
-(Note: pthreads in theory requires you to use C<pthread_setmask>
-instead of C<sigprocmask> when you use threads, but libev doesn't do it
-either...).
-
-=item queueing from a thread context
-
-The strategy for threads is different, as you cannot (easily) block
-threads but you can easily preempt them, so to queue safely you need to
-employ a traditional mutex lock, such as in this pthread example:
-
- static ev_async mysig;
- static pthread_mutex_t mymutex = PTHREAD_MUTEX_INITIALIZER;
-
- static void
- otherthread (void)
- {
- // only need to lock the actual queueing operation
- pthread_mutex_lock (&mymutex);
- queue_put (data);
- pthread_mutex_unlock (&mymutex);
-
- ev_async_send (EV_DEFAULT_ &mysig);
- }
-
- static void
- mysig_cb (EV_P_ ev_async *w, int revents)
- {
- pthread_mutex_lock (&mymutex);
-
- while (queue_get (&data))
- process (data);
-
- pthread_mutex_unlock (&mymutex);
- }
-
-=back
-
-
-=head3 Watcher-Specific Functions and Data Members
-
-=over 4
-
-=item ev_async_init (ev_async *, callback)
-
-Initialises and configures the async watcher - it has no parameters of any
-kind. There is a C<ev_async_set> macro, but using it is utterly pointless,
-trust me.
-
-=item ev_async_send (loop, ev_async *)
-
-Sends/signals/activates the given C<ev_async> watcher, that is, feeds
-an C<EV_ASYNC> event on the watcher into the event loop, and instantly
-returns.
-
-Unlike C<ev_feed_event>, this call is safe to do from other threads,
-signal or similar contexts (see the discussion of C<EV_ATOMIC_T> in the
-embedding section below on what exactly this means).
-
-Note that, as with other watchers in libev, multiple events might get
-compressed into a single callback invocation (another way to look at this
-is that C<ev_async> watchers are level-triggered, set on C<ev_async_send>,
-reset when the event loop detects that).
-
-This call incurs the overhead of a system call only once per event loop
-iteration, so while the overhead might be noticeable, it doesn't apply to
-repeated calls to C<ev_async_send> for the same event loop.
-
-=item bool = ev_async_pending (ev_async *)
-
-Returns a non-zero value when C<ev_async_send> has been called on the
-watcher but the event has not yet been processed (or even noted) by the
-event loop.
-
-C<ev_async_send> sets a flag in the watcher and wakes up the loop. When
-the loop iterates next and checks for the watcher to have become active,
-it will reset the flag again. C<ev_async_pending> can be used to very
-quickly check whether invoking the loop might be a good idea.
-
-Not that this does I<not> check whether the watcher itself is pending,
-only whether it has been requested to make this watcher pending: there
-is a time window between the event loop checking and resetting the async
-notification, and the callback being invoked.
-
-=back
-
-
-=head1 OTHER FUNCTIONS
-
-There are some other functions of possible interest. Described. Here. Now.
-
-=over 4
-
-=item ev_once (loop, int fd, int events, ev_tstamp timeout, callback)
-
-This function combines a simple timer and an I/O watcher, calls your
-callback on whichever event happens first and automatically stops both
-watchers. This is useful if you want to wait for a single event on an fd
-or timeout without having to allocate/configure/start/stop/free one or
-more watchers yourself.
-
-If C<fd> is less than 0, then no I/O watcher will be started and the
-C<events> argument is being ignored. Otherwise, an C<ev_io> watcher for
-the given C<fd> and C<events> set will be created and started.
-
-If C<timeout> is less than 0, then no timeout watcher will be
-started. Otherwise an C<ev_timer> watcher with after = C<timeout> (and
-repeat = 0) will be started. C<0> is a valid timeout.
-
-The callback has the type C<void (*cb)(int revents, void *arg)> and is
-passed an C<revents> set like normal event callbacks (a combination of
-C<EV_ERROR>, C<EV_READ>, C<EV_WRITE> or C<EV_TIMER>) and the C<arg>
-value passed to C<ev_once>. Note that it is possible to receive I<both>
-a timeout and an io event at the same time - you probably should give io
-events precedence.
-
-Example: wait up to ten seconds for data to appear on STDIN_FILENO.
-
- static void stdin_ready (int revents, void *arg)
- {
- if (revents & EV_READ)
- /* stdin might have data for us, joy! */;
- else if (revents & EV_TIMER)
- /* doh, nothing entered */;
- }
-
- ev_once (STDIN_FILENO, EV_READ, 10., stdin_ready, 0);
-
-=item ev_feed_fd_event (loop, int fd, int revents)
-
-Feed an event on the given fd, as if a file descriptor backend detected
-the given events it.
-
-=item ev_feed_signal_event (loop, int signum)
-
-Feed an event as if the given signal occurred. See also C<ev_feed_signal>,
-which is async-safe.
-
-=back
-
-
-=head1 COMMON OR USEFUL IDIOMS (OR BOTH)
-
-This section explains some common idioms that are not immediately
-obvious. Note that examples are sprinkled over the whole manual, and this
-section only contains stuff that wouldn't fit anywhere else.
-
-=head2 ASSOCIATING CUSTOM DATA WITH A WATCHER
-
-Each watcher has, by default, a C<void *data> member that you can read
-or modify at any time: libev will completely ignore it. This can be used
-to associate arbitrary data with your watcher. If you need more data and
-don't want to allocate memory separately and store a pointer to it in that
-data member, you can also "subclass" the watcher type and provide your own
-data:
-
- struct my_io
- {
- ev_io io;
- int otherfd;
- void *somedata;
- struct whatever *mostinteresting;
- };
-
- ...
- struct my_io w;
- ev_io_init (&w.io, my_cb, fd, EV_READ);
-
-And since your callback will be called with a pointer to the watcher, you
-can cast it back to your own type:
-
- static void my_cb (struct ev_loop *loop, ev_io *w_, int revents)
- {
- struct my_io *w = (struct my_io *)w_;
- ...
- }
-
-More interesting and less C-conformant ways of casting your callback
-function type instead have been omitted.
-
-=head2 BUILDING YOUR OWN COMPOSITE WATCHERS
-
-Another common scenario is to use some data structure with multiple
-embedded watchers, in effect creating your own watcher that combines
-multiple libev event sources into one "super-watcher":
-
- struct my_biggy
- {
- int some_data;
- ev_timer t1;
- ev_timer t2;
- }
-
-In this case getting the pointer to C<my_biggy> is a bit more
-complicated: Either you store the address of your C<my_biggy> struct in
-the C<data> member of the watcher (for woozies or C++ coders), or you need
-to use some pointer arithmetic using C<offsetof> inside your watchers (for
-real programmers):
-
- #include <stddef.h>
-
- static void
- t1_cb (EV_P_ ev_timer *w, int revents)
- {
- struct my_biggy big = (struct my_biggy *)
- (((char *)w) - offsetof (struct my_biggy, t1));
- }
-
- static void
- t2_cb (EV_P_ ev_timer *w, int revents)
- {
- struct my_biggy big = (struct my_biggy *)
- (((char *)w) - offsetof (struct my_biggy, t2));
- }
-
-=head2 MODEL/NESTED EVENT LOOP INVOCATIONS AND EXIT CONDITIONS
-
-Often (especially in GUI toolkits) there are places where you have
-I<modal> interaction, which is most easily implemented by recursively
-invoking C<ev_run>.
-
-This brings the problem of exiting - a callback might want to finish the
-main C<ev_run> call, but not the nested one (e.g. user clicked "Quit", but
-a modal "Are you sure?" dialog is still waiting), or just the nested one
-and not the main one (e.g. user clocked "Ok" in a modal dialog), or some
-other combination: In these cases, C<ev_break> will not work alone.
-
-The solution is to maintain "break this loop" variable for each C<ev_run>
-invocation, and use a loop around C<ev_run> until the condition is
-triggered, using C<EVRUN_ONCE>:
-
- // main loop
- int exit_main_loop = 0;
-
- while (!exit_main_loop)
- ev_run (EV_DEFAULT_ EVRUN_ONCE);
-
- // in a model watcher
- int exit_nested_loop = 0;
-
- while (!exit_nested_loop)
- ev_run (EV_A_ EVRUN_ONCE);
-
-To exit from any of these loops, just set the corresponding exit variable:
-
- // exit modal loop
- exit_nested_loop = 1;
-
- // exit main program, after modal loop is finished
- exit_main_loop = 1;
-
- // exit both
- exit_main_loop = exit_nested_loop = 1;
-
-=head2 THREAD LOCKING EXAMPLE
-
-Here is a fictitious example of how to run an event loop in a different
-thread from where callbacks are being invoked and watchers are
-created/added/removed.
-
-For a real-world example, see the C<EV::Loop::Async> perl module,
-which uses exactly this technique (which is suited for many high-level
-languages).
-
-The example uses a pthread mutex to protect the loop data, a condition
-variable to wait for callback invocations, an async watcher to notify the
-event loop thread and an unspecified mechanism to wake up the main thread.
-
-First, you need to associate some data with the event loop:
-
- typedef struct {
- mutex_t lock; /* global loop lock */
- ev_async async_w;
- thread_t tid;
- cond_t invoke_cv;
- } userdata;
-
- void prepare_loop (EV_P)
- {
- // for simplicity, we use a static userdata struct.
- static userdata u;
-
- ev_async_init (&u->async_w, async_cb);
- ev_async_start (EV_A_ &u->async_w);
-
- pthread_mutex_init (&u->lock, 0);
- pthread_cond_init (&u->invoke_cv, 0);
-
- // now associate this with the loop
- ev_set_userdata (EV_A_ u);
- ev_set_invoke_pending_cb (EV_A_ l_invoke);
- ev_set_loop_release_cb (EV_A_ l_release, l_acquire);
-
- // then create the thread running ev_run
- pthread_create (&u->tid, 0, l_run, EV_A);
- }
-
-The callback for the C<ev_async> watcher does nothing: the watcher is used
-solely to wake up the event loop so it takes notice of any new watchers
-that might have been added:
-
- static void
- async_cb (EV_P_ ev_async *w, int revents)
- {
- // just used for the side effects
- }
-
-The C<l_release> and C<l_acquire> callbacks simply unlock/lock the mutex
-protecting the loop data, respectively.
-
- static void
- l_release (EV_P)
- {
- userdata *u = ev_userdata (EV_A);
- pthread_mutex_unlock (&u->lock);
- }
-
- static void
- l_acquire (EV_P)
- {
- userdata *u = ev_userdata (EV_A);
- pthread_mutex_lock (&u->lock);
- }
-
-The event loop thread first acquires the mutex, and then jumps straight
-into C<ev_run>:
-
- void *
- l_run (void *thr_arg)
- {
- struct ev_loop *loop = (struct ev_loop *)thr_arg;
-
- l_acquire (EV_A);
- pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
- ev_run (EV_A_ 0);
- l_release (EV_A);
-
- return 0;
- }
-
-Instead of invoking all pending watchers, the C<l_invoke> callback will
-signal the main thread via some unspecified mechanism (signals? pipe
-writes? C<Async::Interrupt>?) and then waits until all pending watchers
-have been called (in a while loop because a) spurious wakeups are possible
-and b) skipping inter-thread-communication when there are no pending
-watchers is very beneficial):
-
- static void
- l_invoke (EV_P)
- {
- userdata *u = ev_userdata (EV_A);
-
- while (ev_pending_count (EV_A))
- {
- wake_up_other_thread_in_some_magic_or_not_so_magic_way ();
- pthread_cond_wait (&u->invoke_cv, &u->lock);
- }
- }
-
-Now, whenever the main thread gets told to invoke pending watchers, it
-will grab the lock, call C<ev_invoke_pending> and then signal the loop
-thread to continue:
-
- static void
- real_invoke_pending (EV_P)
- {
- userdata *u = ev_userdata (EV_A);
-
- pthread_mutex_lock (&u->lock);
- ev_invoke_pending (EV_A);
- pthread_cond_signal (&u->invoke_cv);
- pthread_mutex_unlock (&u->lock);
- }
-
-Whenever you want to start/stop a watcher or do other modifications to an
-event loop, you will now have to lock:
-
- ev_timer timeout_watcher;
- userdata *u = ev_userdata (EV_A);
-
- ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
-
- pthread_mutex_lock (&u->lock);
- ev_timer_start (EV_A_ &timeout_watcher);
- ev_async_send (EV_A_ &u->async_w);
- pthread_mutex_unlock (&u->lock);
-
-Note that sending the C<ev_async> watcher is required because otherwise
-an event loop currently blocking in the kernel will have no knowledge
-about the newly added timer. By waking up the loop it will pick up any new
-watchers in the next event loop iteration.
-
-=head2 THREADS, COROUTINES, CONTINUATIONS, QUEUES... INSTEAD OF CALLBACKS
-
-While the overhead of a callback that e.g. schedules a thread is small, it
-is still an overhead. If you embed libev, and your main usage is with some
-kind of threads or coroutines, you might want to customise libev so that
-doesn't need callbacks anymore.
-
-Imagine you have coroutines that you can switch to using a function
-C<switch_to (coro)>, that libev runs in a coroutine called C<libev_coro>
-and that due to some magic, the currently active coroutine is stored in a
-global called C<current_coro>. Then you can build your own "wait for libev
-event" primitive by changing C<EV_CB_DECLARE> and C<EV_CB_INVOKE> (note
-the differing C<;> conventions):
-
- #define EV_CB_DECLARE(type) struct my_coro *cb;
- #define EV_CB_INVOKE(watcher) switch_to ((watcher)->cb)
-
-That means instead of having a C callback function, you store the
-coroutine to switch to in each watcher, and instead of having libev call
-your callback, you instead have it switch to that coroutine.
-
-A coroutine might now wait for an event with a function called
-C<wait_for_event>. (the watcher needs to be started, as always, but it doesn't
-matter when, or whether the watcher is active or not when this function is
-called):
-
- void
- wait_for_event (ev_watcher *w)
- {
- ev_cb_set (w) = current_coro;
- switch_to (libev_coro);
- }
-
-That basically suspends the coroutine inside C<wait_for_event> and
-continues the libev coroutine, which, when appropriate, switches back to
-this or any other coroutine. I am sure if you sue this your own :)
-
-You can do similar tricks if you have, say, threads with an event queue -
-instead of storing a coroutine, you store the queue object and instead of
-switching to a coroutine, you push the watcher onto the queue and notify
-any waiters.
-
-To embed libev, see L<EMBEDDING>, but in short, it's easiest to create two
-files, F<my_ev.h> and F<my_ev.c> that include the respective libev files:
-
- // my_ev.h
- #define EV_CB_DECLARE(type) struct my_coro *cb;
- #define EV_CB_INVOKE(watcher) switch_to ((watcher)->cb);
- #include "../libev/ev.h"
-
- // my_ev.c
- #define EV_H "my_ev.h"
- #include "../libev/ev.c"
-
-And then use F<my_ev.h> when you would normally use F<ev.h>, and compile
-F<my_ev.c> into your project. When properly specifying include paths, you
-can even use F<ev.h> as header file name directly.
-
-
-=head1 LIBEVENT EMULATION
-
-Libev offers a compatibility emulation layer for libevent. It cannot
-emulate the internals of libevent, so here are some usage hints:
-
-=over 4
-
-=item * Only the libevent-1.4.1-beta API is being emulated.
-
-This was the newest libevent version available when libev was implemented,
-and is still mostly unchanged in 2010.
-
-=item * Use it by including <event.h>, as usual.
-
-=item * The following members are fully supported: ev_base, ev_callback,
-ev_arg, ev_fd, ev_res, ev_events.
-
-=item * Avoid using ev_flags and the EVLIST_*-macros, while it is
-maintained by libev, it does not work exactly the same way as in libevent (consider
-it a private API).
-
-=item * Priorities are not currently supported. Initialising priorities
-will fail and all watchers will have the same priority, even though there
-is an ev_pri field.
-
-=item * In libevent, the last base created gets the signals, in libev, the
-base that registered the signal gets the signals.
-
-=item * Other members are not supported.
-
-=item * The libev emulation is I<not> ABI compatible to libevent, you need
-to use the libev header file and library.
-
-=back
-
-=head1 C++ SUPPORT
-
-Libev comes with some simplistic wrapper classes for C++ that mainly allow
-you to use some convenience methods to start/stop watchers and also change
-the callback model to a model using method callbacks on objects.
-
-To use it,
-
- #include <ev++.h>
-
-This automatically includes F<ev.h> and puts all of its definitions (many
-of them macros) into the global namespace. All C++ specific things are
-put into the C<ev> namespace. It should support all the same embedding
-options as F<ev.h>, most notably C<EV_MULTIPLICITY>.
-
-Care has been taken to keep the overhead low. The only data member the C++
-classes add (compared to plain C-style watchers) is the event loop pointer
-that the watcher is associated with (or no additional members at all if
-you disable C<EV_MULTIPLICITY> when embedding libev).
-
-Currently, functions, static and non-static member functions and classes
-with C<operator ()> can be used as callbacks. Other types should be easy
-to add as long as they only need one additional pointer for context. If
-you need support for other types of functors please contact the author
-(preferably after implementing it).
-
-Here is a list of things available in the C<ev> namespace:
-
-=over 4
-
-=item C<ev::READ>, C<ev::WRITE> etc.
-
-These are just enum values with the same values as the C<EV_READ> etc.
-macros from F<ev.h>.
-
-=item C<ev::tstamp>, C<ev::now>
-
-Aliases to the same types/functions as with the C<ev_> prefix.
-
-=item C<ev::io>, C<ev::timer>, C<ev::periodic>, C<ev::idle>, C<ev::sig> etc.
-
-For each C<ev_TYPE> watcher in F<ev.h> there is a corresponding class of
-the same name in the C<ev> namespace, with the exception of C<ev_signal>
-which is called C<ev::sig> to avoid clashes with the C<signal> macro
-defines by many implementations.
-
-All of those classes have these methods:
-
-=over 4
-
-=item ev::TYPE::TYPE ()
-
-=item ev::TYPE::TYPE (loop)
-
-=item ev::TYPE::~TYPE
-
-The constructor (optionally) takes an event loop to associate the watcher
-with. If it is omitted, it will use C<EV_DEFAULT>.
-
-The constructor calls C<ev_init> for you, which means you have to call the
-C<set> method before starting it.
-
-It will not set a callback, however: You have to call the templated C<set>
-method to set a callback before you can start the watcher.
-
-(The reason why you have to use a method is a limitation in C++ which does
-not allow explicit template arguments for constructors).
-
-The destructor automatically stops the watcher if it is active.
-
-=item w->set<class, &class::method> (object *)
-
-This method sets the callback method to call. The method has to have a
-signature of C<void (*)(ev_TYPE &, int)>, it receives the watcher as
-first argument and the C<revents> as second. The object must be given as
-parameter and is stored in the C<data> member of the watcher.
-
-This method synthesizes efficient thunking code to call your method from
-the C callback that libev requires. If your compiler can inline your
-callback (i.e. it is visible to it at the place of the C<set> call and
-your compiler is good :), then the method will be fully inlined into the
-thunking function, making it as fast as a direct C callback.
-
-Example: simple class declaration and watcher initialisation
-
- struct myclass
- {
- void io_cb (ev::io &w, int revents) { }
- }
-
- myclass obj;
- ev::io iow;
- iow.set <myclass, &myclass::io_cb> (&obj);
-
-=item w->set (object *)
-
-This is a variation of a method callback - leaving out the method to call
-will default the method to C<operator ()>, which makes it possible to use
-functor objects without having to manually specify the C<operator ()> all
-the time. Incidentally, you can then also leave out the template argument
-list.
-
-The C<operator ()> method prototype must be C<void operator ()(watcher &w,
-int revents)>.
-
-See the method-C<set> above for more details.
-
-Example: use a functor object as callback.
-
- struct myfunctor
- {
- void operator() (ev::io &w, int revents)
- {
- ...
- }
- }
-
- myfunctor f;
-
- ev::io w;
- w.set (&f);
-
-=item w->set<function> (void *data = 0)
-
-Also sets a callback, but uses a static method or plain function as
-callback. The optional C<data> argument will be stored in the watcher's
-C<data> member and is free for you to use.
-
-The prototype of the C<function> must be C<void (*)(ev::TYPE &w, int)>.
-
-See the method-C<set> above for more details.
-
-Example: Use a plain function as callback.
-
- static void io_cb (ev::io &w, int revents) { }
- iow.set <io_cb> ();
-
-=item w->set (loop)
-
-Associates a different C<struct ev_loop> with this watcher. You can only
-do this when the watcher is inactive (and not pending either).
-
-=item w->set ([arguments])
-
-Basically the same as C<ev_TYPE_set>, with the same arguments. Either this
-method or a suitable start method must be called at least once. Unlike the
-C counterpart, an active watcher gets automatically stopped and restarted
-when reconfiguring it with this method.
-
-=item w->start ()
-
-Starts the watcher. Note that there is no C<loop> argument, as the
-constructor already stores the event loop.
-
-=item w->start ([arguments])
-
-Instead of calling C<set> and C<start> methods separately, it is often
-convenient to wrap them in one call. Uses the same type of arguments as
-the configure C<set> method of the watcher.
-
-=item w->stop ()
-
-Stops the watcher if it is active. Again, no C<loop> argument.
-
-=item w->again () (C<ev::timer>, C<ev::periodic> only)
-
-For C<ev::timer> and C<ev::periodic>, this invokes the corresponding
-C<ev_TYPE_again> function.
-
-=item w->sweep () (C<ev::embed> only)
-
-Invokes C<ev_embed_sweep>.
-
-=item w->update () (C<ev::stat> only)
-
-Invokes C<ev_stat_stat>.
-
-=back
-
-=back
-
-Example: Define a class with two I/O and idle watchers, start the I/O
-watchers in the constructor.
-
- class myclass
- {
- ev::io io ; void io_cb (ev::io &w, int revents);
- ev::io2 io2 ; void io2_cb (ev::io &w, int revents);
- ev::idle idle; void idle_cb (ev::idle &w, int revents);
-
- myclass (int fd)
- {
- io .set <myclass, &myclass::io_cb > (this);
- io2 .set <myclass, &myclass::io2_cb > (this);
- idle.set <myclass, &myclass::idle_cb> (this);
-
- io.set (fd, ev::WRITE); // configure the watcher
- io.start (); // start it whenever convenient
-
- io2.start (fd, ev::READ); // set + start in one call
- }
- };
-
-
-=head1 OTHER LANGUAGE BINDINGS
-
-Libev does not offer other language bindings itself, but bindings for a
-number of languages exist in the form of third-party packages. If you know
-any interesting language binding in addition to the ones listed here, drop
-me a note.
-
-=over 4
-
-=item Perl
-
-The EV module implements the full libev API and is actually used to test
-libev. EV is developed together with libev. Apart from the EV core module,
-there are additional modules that implement libev-compatible interfaces
-to C<libadns> (C<EV::ADNS>, but C<AnyEvent::DNS> is preferred nowadays),
-C<Net::SNMP> (C<Net::SNMP::EV>) and the C<libglib> event core (C<Glib::EV>
-and C<EV::Glib>).
-
-It can be found and installed via CPAN, its homepage is at
-L<http://software.schmorp.de/pkg/EV>.
-
-=item Python
-
-Python bindings can be found at L<http://code.google.com/p/pyev/>. It
-seems to be quite complete and well-documented.
-
-=item Ruby
-
-Tony Arcieri has written a ruby extension that offers access to a subset
-of the libev API and adds file handle abstractions, asynchronous DNS and
-more on top of it. It can be found via gem servers. Its homepage is at
-L<http://rev.rubyforge.org/>.
-
-Roger Pack reports that using the link order C<-lws2_32 -lmsvcrt-ruby-190>
-makes rev work even on mingw.
-
-=item Haskell
-
-A haskell binding to libev is available at
-L<http://hackage.haskell.org/cgi-bin/hackage-scripts/package/hlibev>.
-
-=item D
-
-Leandro Lucarella has written a D language binding (F<ev.d>) for libev, to
-be found at L<http://proj.llucax.com.ar/wiki/evd>.
-
-=item Ocaml
-
-Erkki Seppala has written Ocaml bindings for libev, to be found at
-L<http://modeemi.cs.tut.fi/~flux/software/ocaml-ev/>.
-
-=item Lua
-
-Brian Maher has written a partial interface to libev for lua (at the
-time of this writing, only C<ev_io> and C<ev_timer>), to be found at
-L<http://github.com/brimworks/lua-ev>.
-
-=back
-
-
-=head1 MACRO MAGIC
-
-Libev can be compiled with a variety of options, the most fundamental
-of which is C<EV_MULTIPLICITY>. This option determines whether (most)
-functions and callbacks have an initial C<struct ev_loop *> argument.
-
-To make it easier to write programs that cope with either variant, the
-following macros are defined:
-
-=over 4
-
-=item C<EV_A>, C<EV_A_>
-
-This provides the loop I<argument> for functions, if one is required ("ev
-loop argument"). The C<EV_A> form is used when this is the sole argument,
-C<EV_A_> is used when other arguments are following. Example:
-
- ev_unref (EV_A);
- ev_timer_add (EV_A_ watcher);
- ev_run (EV_A_ 0);
-
-It assumes the variable C<loop> of type C<struct ev_loop *> is in scope,
-which is often provided by the following macro.
-
-=item C<EV_P>, C<EV_P_>
-
-This provides the loop I<parameter> for functions, if one is required ("ev
-loop parameter"). The C<EV_P> form is used when this is the sole parameter,
-C<EV_P_> is used when other parameters are following. Example:
-
- // this is how ev_unref is being declared
- static void ev_unref (EV_P);
-
- // this is how you can declare your typical callback
- static void cb (EV_P_ ev_timer *w, int revents)
-
-It declares a parameter C<loop> of type C<struct ev_loop *>, quite
-suitable for use with C<EV_A>.
-
-=item C<EV_DEFAULT>, C<EV_DEFAULT_>
-
-Similar to the other two macros, this gives you the value of the default
-loop, if multiple loops are supported ("ev loop default").
-
-=item C<EV_DEFAULT_UC>, C<EV_DEFAULT_UC_>
-
-Usage identical to C<EV_DEFAULT> and C<EV_DEFAULT_>, but requires that the
-default loop has been initialised (C<UC> == unchecked). Their behaviour
-is undefined when the default loop has not been initialised by a previous
-execution of C<EV_DEFAULT>, C<EV_DEFAULT_> or C<ev_default_init (...)>.
-
-It is often prudent to use C<EV_DEFAULT> when initialising the first
-watcher in a function but use C<EV_DEFAULT_UC> afterwards.
-
-=back
-
-Example: Declare and initialise a check watcher, utilising the above
-macros so it will work regardless of whether multiple loops are supported
-or not.
-
- static void
- check_cb (EV_P_ ev_timer *w, int revents)
- {
- ev_check_stop (EV_A_ w);
- }
-
- ev_check check;
- ev_check_init (&check, check_cb);
- ev_check_start (EV_DEFAULT_ &check);
- ev_run (EV_DEFAULT_ 0);
-
-=head1 EMBEDDING
-
-Libev can (and often is) directly embedded into host
-applications. Examples of applications that embed it include the Deliantra
-Game Server, the EV perl module, the GNU Virtual Private Ethernet (gvpe)
-and rxvt-unicode.
-
-The goal is to enable you to just copy the necessary files into your
-source directory without having to change even a single line in them, so
-you can easily upgrade by simply copying (or having a checked-out copy of
-libev somewhere in your source tree).
-
-=head2 FILESETS
-
-Depending on what features you need you need to include one or more sets of files
-in your application.
-
-=head3 CORE EVENT LOOP
-
-To include only the libev core (all the C<ev_*> functions), with manual
-configuration (no autoconf):
-
- #define EV_STANDALONE 1
- #include "ev.c"
-
-This will automatically include F<ev.h>, too, and should be done in a
-single C source file only to provide the function implementations. To use
-it, do the same for F<ev.h> in all files wishing to use this API (best
-done by writing a wrapper around F<ev.h> that you can include instead and
-where you can put other configuration options):
-
- #define EV_STANDALONE 1
- #include "ev.h"
-
-Both header files and implementation files can be compiled with a C++
-compiler (at least, that's a stated goal, and breakage will be treated
-as a bug).
-
-You need the following files in your source tree, or in a directory
-in your include path (e.g. in libev/ when using -Ilibev):
-
- ev.h
- ev.c
- ev_vars.h
- ev_wrap.h
-
- ev_win32.c required on win32 platforms only
-
- ev_select.c only when select backend is enabled (which is enabled by default)
- ev_poll.c only when poll backend is enabled (disabled by default)
- ev_epoll.c only when the epoll backend is enabled (disabled by default)
- ev_kqueue.c only when the kqueue backend is enabled (disabled by default)
- ev_port.c only when the solaris port backend is enabled (disabled by default)
-
-F<ev.c> includes the backend files directly when enabled, so you only need
-to compile this single file.
-
-=head3 LIBEVENT COMPATIBILITY API
-
-To include the libevent compatibility API, also include:
-
- #include "event.c"
-
-in the file including F<ev.c>, and:
-
- #include "event.h"
-
-in the files that want to use the libevent API. This also includes F<ev.h>.
-
-You need the following additional files for this:
-
- event.h
- event.c
-
-=head3 AUTOCONF SUPPORT
-
-Instead of using C<EV_STANDALONE=1> and providing your configuration in
-whatever way you want, you can also C<m4_include([libev.m4])> in your
-F<configure.ac> and leave C<EV_STANDALONE> undefined. F<ev.c> will then
-include F<config.h> and configure itself accordingly.
-
-For this of course you need the m4 file:
-
- libev.m4
-
-=head2 PREPROCESSOR SYMBOLS/MACROS
-
-Libev can be configured via a variety of preprocessor symbols you have to
-define before including (or compiling) any of its files. The default in
-the absence of autoconf is documented for every option.
-
-Symbols marked with "(h)" do not change the ABI, and can have different
-values when compiling libev vs. including F<ev.h>, so it is permissible
-to redefine them before including F<ev.h> without breaking compatibility
-to a compiled library. All other symbols change the ABI, which means all
-users of libev and the libev code itself must be compiled with compatible
-settings.
-
-=over 4
-
-=item EV_COMPAT3 (h)
-
-Backwards compatibility is a major concern for libev. This is why this
-release of libev comes with wrappers for the functions and symbols that
-have been renamed between libev version 3 and 4.
-
-You can disable these wrappers (to test compatibility with future
-versions) by defining C<EV_COMPAT3> to C<0> when compiling your
-sources. This has the additional advantage that you can drop the C<struct>
-from C<struct ev_loop> declarations, as libev will provide an C<ev_loop>
-typedef in that case.
-
-In some future version, the default for C<EV_COMPAT3> will become C<0>,
-and in some even more future version the compatibility code will be
-removed completely.
-
-=item EV_STANDALONE (h)
-
-Must always be C<1> if you do not use autoconf configuration, which
-keeps libev from including F<config.h>, and it also defines dummy
-implementations for some libevent functions (such as logging, which is not
-supported). It will also not define any of the structs usually found in
-F<event.h> that are not directly supported by the libev core alone.
-
-In standalone mode, libev will still try to automatically deduce the
-configuration, but has to be more conservative.
-
-=item EV_USE_MONOTONIC
-
-If defined to be C<1>, libev will try to detect the availability of the
-monotonic clock option at both compile time and runtime. Otherwise no
-use of the monotonic clock option will be attempted. If you enable this,
-you usually have to link against librt or something similar. Enabling it
-when the functionality isn't available is safe, though, although you have
-to make sure you link against any libraries where the C<clock_gettime>
-function is hiding in (often F<-lrt>). See also C<EV_USE_CLOCK_SYSCALL>.
-
-=item EV_USE_REALTIME
-
-If defined to be C<1>, libev will try to detect the availability of the
-real-time clock option at compile time (and assume its availability
-at runtime if successful). Otherwise no use of the real-time clock
-option will be attempted. This effectively replaces C<gettimeofday>
-by C<clock_get (CLOCK_REALTIME, ...)> and will not normally affect
-correctness. See the note about libraries in the description of
-C<EV_USE_MONOTONIC>, though. Defaults to the opposite value of
-C<EV_USE_CLOCK_SYSCALL>.
-
-=item EV_USE_CLOCK_SYSCALL
-
-If defined to be C<1>, libev will try to use a direct syscall instead
-of calling the system-provided C<clock_gettime> function. This option
-exists because on GNU/Linux, C<clock_gettime> is in C<librt>, but C<librt>
-unconditionally pulls in C<libpthread>, slowing down single-threaded
-programs needlessly. Using a direct syscall is slightly slower (in
-theory), because no optimised vdso implementation can be used, but avoids
-the pthread dependency. Defaults to C<1> on GNU/Linux with glibc 2.x or
-higher, as it simplifies linking (no need for C<-lrt>).
-
-=item EV_USE_NANOSLEEP
-
-If defined to be C<1>, libev will assume that C<nanosleep ()> is available
-and will use it for delays. Otherwise it will use C<select ()>.
-
-=item EV_USE_EVENTFD
-
-If defined to be C<1>, then libev will assume that C<eventfd ()> is
-available and will probe for kernel support at runtime. This will improve
-C<ev_signal> and C<ev_async> performance and reduce resource consumption.
-If undefined, it will be enabled if the headers indicate GNU/Linux + Glibc
-2.7 or newer, otherwise disabled.
-
-=item EV_USE_SELECT
-
-If undefined or defined to be C<1>, libev will compile in support for the
-C<select>(2) backend. No attempt at auto-detection will be done: if no
-other method takes over, select will be it. Otherwise the select backend
-will not be compiled in.
-
-=item EV_SELECT_USE_FD_SET
-
-If defined to C<1>, then the select backend will use the system C<fd_set>
-structure. This is useful if libev doesn't compile due to a missing
-C<NFDBITS> or C<fd_mask> definition or it mis-guesses the bitset layout
-on exotic systems. This usually limits the range of file descriptors to
-some low limit such as 1024 or might have other limitations (winsocket
-only allows 64 sockets). The C<FD_SETSIZE> macro, set before compilation,
-configures the maximum size of the C<fd_set>.
-
-=item EV_SELECT_IS_WINSOCKET
-
-When defined to C<1>, the select backend will assume that
-select/socket/connect etc. don't understand file descriptors but
-wants osf handles on win32 (this is the case when the select to
-be used is the winsock select). This means that it will call
-C<_get_osfhandle> on the fd to convert it to an OS handle. Otherwise,
-it is assumed that all these functions actually work on fds, even
-on win32. Should not be defined on non-win32 platforms.
-
-=item EV_FD_TO_WIN32_HANDLE(fd)
-
-If C<EV_SELECT_IS_WINSOCKET> is enabled, then libev needs a way to map
-file descriptors to socket handles. When not defining this symbol (the
-default), then libev will call C<_get_osfhandle>, which is usually
-correct. In some cases, programs use their own file descriptor management,
-in which case they can provide this function to map fds to socket handles.
-
-=item EV_WIN32_HANDLE_TO_FD(handle)
-
-If C<EV_SELECT_IS_WINSOCKET> then libev maps handles to file descriptors
-using the standard C<_open_osfhandle> function. For programs implementing
-their own fd to handle mapping, overwriting this function makes it easier
-to do so. This can be done by defining this macro to an appropriate value.
-
-=item EV_WIN32_CLOSE_FD(fd)
-
-If programs implement their own fd to handle mapping on win32, then this
-macro can be used to override the C<close> function, useful to unregister
-file descriptors again. Note that the replacement function has to close
-the underlying OS handle.
-
-=item EV_USE_POLL
-
-If defined to be C<1>, libev will compile in support for the C<poll>(2)
-backend. Otherwise it will be enabled on non-win32 platforms. It
-takes precedence over select.
-
-=item EV_USE_EPOLL
-
-If defined to be C<1>, libev will compile in support for the Linux
-C<epoll>(7) backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for GNU/Linux systems. If undefined, it will be enabled if the
-headers indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-
-=item EV_USE_KQUEUE
-
-If defined to be C<1>, libev will compile in support for the BSD style
-C<kqueue>(2) backend. Its actual availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for BSD and BSD-like systems, although on most BSDs kqueue only
-supports some types of fds correctly (the only platform we found that
-supports ptys for example was NetBSD), so kqueue might be compiled in, but
-not be used unless explicitly requested. The best way to use it is to find
-out whether kqueue supports your type of fd properly and use an embedded
-kqueue loop.
-
-=item EV_USE_PORT
-
-If defined to be C<1>, libev will compile in support for the Solaris
-10 port style backend. Its availability will be detected at runtime,
-otherwise another method will be used as fallback. This is the preferred
-backend for Solaris 10 systems.
-
-=item EV_USE_DEVPOLL
-
-Reserved for future expansion, works like the USE symbols above.
-
-=item EV_USE_INOTIFY
-
-If defined to be C<1>, libev will compile in support for the Linux inotify
-interface to speed up C<ev_stat> watchers. Its actual availability will
-be detected at runtime. If undefined, it will be enabled if the headers
-indicate GNU/Linux + Glibc 2.4 or newer, otherwise disabled.
-
-=item EV_ATOMIC_T
-
-Libev requires an integer type (suitable for storing C<0> or C<1>) whose
-access is atomic with respect to other threads or signal contexts. No such
-type is easily found in the C language, so you can provide your own type
-that you know is safe for your purposes. It is used both for signal handler "locking"
-as well as for signal and thread safety in C<ev_async> watchers.
-
-In the absence of this define, libev will use C<sig_atomic_t volatile>
-(from F<signal.h>), which is usually good enough on most platforms.
-
-=item EV_H (h)
-
-The name of the F<ev.h> header file used to include it. The default if
-undefined is C<"ev.h"> in F<event.h>, F<ev.c> and F<ev++.h>. This can be
-used to virtually rename the F<ev.h> header file in case of conflicts.
-
-=item EV_CONFIG_H (h)
-
-If C<EV_STANDALONE> isn't C<1>, this variable can be used to override
-F<ev.c>'s idea of where to find the F<config.h> file, similarly to
-C<EV_H>, above.
-
-=item EV_EVENT_H (h)
-
-Similarly to C<EV_H>, this macro can be used to override F<event.c>'s idea
-of how the F<event.h> header can be found, the default is C<"event.h">.
-
-=item EV_PROTOTYPES (h)
-
-If defined to be C<0>, then F<ev.h> will not define any function
-prototypes, but still define all the structs and other symbols. This is
-occasionally useful if you want to provide your own wrapper functions
-around libev functions.
-
-=item EV_MULTIPLICITY
-
-If undefined or defined to C<1>, then all event-loop-specific functions
-will have the C<struct ev_loop *> as first argument, and you can create
-additional independent event loops. Otherwise there will be no support
-for multiple event loops and there is no first event loop pointer
-argument. Instead, all functions act on the single default loop.
-
-=item EV_MINPRI
-
-=item EV_MAXPRI
-
-The range of allowed priorities. C<EV_MINPRI> must be smaller or equal to
-C<EV_MAXPRI>, but otherwise there are no non-obvious limitations. You can
-provide for more priorities by overriding those symbols (usually defined
-to be C<-2> and C<2>, respectively).
-
-When doing priority-based operations, libev usually has to linearly search
-all the priorities, so having many of them (hundreds) uses a lot of space
-and time, so using the defaults of five priorities (-2 .. +2) is usually
-fine.
-
-If your embedding application does not need any priorities, defining these
-both to C<0> will save some memory and CPU.
-
-=item EV_PERIODIC_ENABLE, EV_IDLE_ENABLE, EV_EMBED_ENABLE, EV_STAT_ENABLE,
-EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE,
-EV_ASYNC_ENABLE, EV_CHILD_ENABLE.
-
-If undefined or defined to be C<1> (and the platform supports it), then
-the respective watcher type is supported. If defined to be C<0>, then it
-is not. Disabling watcher types mainly saves code size.
-
-=item EV_FEATURES
-
-If you need to shave off some kilobytes of code at the expense of some
-speed (but with the full API), you can define this symbol to request
-certain subsets of functionality. The default is to enable all features
-that can be enabled on the platform.
-
-A typical way to use this symbol is to define it to C<0> (or to a bitset
-with some broad features you want) and then selectively re-enable
-additional parts you want, for example if you want everything minimal,
-but multiple event loop support, async and child watchers and the poll
-backend, use this:
-
- #define EV_FEATURES 0
- #define EV_MULTIPLICITY 1
- #define EV_USE_POLL 1
- #define EV_CHILD_ENABLE 1
- #define EV_ASYNC_ENABLE 1
-
-The actual value is a bitset, it can be a combination of the following
-values:
-
-=over 4
-
-=item C<1> - faster/larger code
-
-Use larger code to speed up some operations.
-
-Currently this is used to override some inlining decisions (enlarging the
-code size by roughly 30% on amd64).
-
-When optimising for size, use of compiler flags such as C<-Os> with
-gcc is recommended, as well as C<-DNDEBUG>, as libev contains a number of
-assertions.
-
-=item C<2> - faster/larger data structures
-
-Replaces the small 2-heap for timer management by a faster 4-heap, larger
-hash table sizes and so on. This will usually further increase code size
-and can additionally have an effect on the size of data structures at
-runtime.
-
-=item C<4> - full API configuration
-
-This enables priorities (sets C<EV_MAXPRI>=2 and C<EV_MINPRI>=-2), and
-enables multiplicity (C<EV_MULTIPLICITY>=1).
-
-=item C<8> - full API
-
-This enables a lot of the "lesser used" API functions. See C<ev.h> for
-details on which parts of the API are still available without this
-feature, and do not complain if this subset changes over time.
-
-=item C<16> - enable all optional watcher types
-
-Enables all optional watcher types. If you want to selectively enable
-only some watcher types other than I/O and timers (e.g. prepare,
-embed, async, child...) you can enable them manually by defining
-C<EV_watchertype_ENABLE> to C<1> instead.
-
-=item C<32> - enable all backends
-
-This enables all backends - without this feature, you need to enable at
-least one backend manually (C<EV_USE_SELECT> is a good choice).
-
-=item C<64> - enable OS-specific "helper" APIs
-
-Enable inotify, eventfd, signalfd and similar OS-specific helper APIs by
-default.
-
-=back
-
-Compiling with C<gcc -Os -DEV_STANDALONE -DEV_USE_EPOLL=1 -DEV_FEATURES=0>
-reduces the compiled size of libev from 24.7Kb code/2.8Kb data to 6.5Kb
-code/0.3Kb data on my GNU/Linux amd64 system, while still giving you I/O
-watchers, timers and monotonic clock support.
-
-With an intelligent-enough linker (gcc+binutils are intelligent enough
-when you use C<-Wl,--gc-sections -ffunction-sections>) functions unused by
-your program might be left out as well - a binary starting a timer and an
-I/O watcher then might come out at only 5Kb.
-
-=item EV_AVOID_STDIO
-
-If this is set to C<1> at compiletime, then libev will avoid using stdio
-functions (printf, scanf, perror etc.). This will increase the code size
-somewhat, but if your program doesn't otherwise depend on stdio and your
-libc allows it, this avoids linking in the stdio library which is quite
-big.
-
-Note that error messages might become less precise when this option is
-enabled.
-
-=item EV_NSIG
-
-The highest supported signal number, +1 (or, the number of
-signals): Normally, libev tries to deduce the maximum number of signals
-automatically, but sometimes this fails, in which case it can be
-specified. Also, using a lower number than detected (C<32> should be
-good for about any system in existence) can save some memory, as libev
-statically allocates some 12-24 bytes per signal number.
-
-=item EV_PID_HASHSIZE
-
-C<ev_child> watchers use a small hash table to distribute workload by
-pid. The default size is C<16> (or C<1> with C<EV_FEATURES> disabled),
-usually more than enough. If you need to manage thousands of children you
-might want to increase this value (I<must> be a power of two).
-
-=item EV_INOTIFY_HASHSIZE
-
-C<ev_stat> watchers use a small hash table to distribute workload by
-inotify watch id. The default size is C<16> (or C<1> with C<EV_FEATURES>
-disabled), usually more than enough. If you need to manage thousands of
-C<ev_stat> watchers you might want to increase this value (I<must> be a
-power of two).
-
-=item EV_USE_4HEAP
-
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev uses a 4-heap when this symbol is defined
-to C<1>. The 4-heap uses more complicated (longer) code but has noticeably
-faster performance with many (thousands) of watchers.
-
-The default is C<1>, unless C<EV_FEATURES> overrides it, in which case it
-will be C<0>.
-
-=item EV_HEAP_CACHE_AT
-
-Heaps are not very cache-efficient. To improve the cache-efficiency of the
-timer and periodics heaps, libev can cache the timestamp (I<at>) within
-the heap structure (selected by defining C<EV_HEAP_CACHE_AT> to C<1>),
-which uses 8-12 bytes more per watcher and a few hundred bytes more code,
-but avoids random read accesses on heap changes. This improves performance
-noticeably with many (hundreds) of watchers.
-
-The default is C<1>, unless C<EV_FEATURES> overrides it, in which case it
-will be C<0>.
-
-=item EV_VERIFY
-
-Controls how much internal verification (see C<ev_verify ()>) will
-be done: If set to C<0>, no internal verification code will be compiled
-in. If set to C<1>, then verification code will be compiled in, but not
-called. If set to C<2>, then the internal verification code will be
-called once per loop, which can slow down libev. If set to C<3>, then the
-verification code will be called very frequently, which will slow down
-libev considerably.
-
-The default is C<1>, unless C<EV_FEATURES> overrides it, in which case it
-will be C<0>.
-
-=item EV_COMMON
-
-By default, all watchers have a C<void *data> member. By redefining
-this macro to something else you can include more and other types of
-members. You have to define it each time you include one of the files,
-though, and it must be identical each time.
-
-For example, the perl EV module uses something like this:
-
- #define EV_COMMON \
- SV *self; /* contains this struct */ \
- SV *cb_sv, *fh /* note no trailing ";" */
-
-=item EV_CB_DECLARE (type)
-
-=item EV_CB_INVOKE (watcher, revents)
-
-=item ev_set_cb (ev, cb)
-
-Can be used to change the callback member declaration in each watcher,
-and the way callbacks are invoked and set. Must expand to a struct member
-definition and a statement, respectively. See the F<ev.h> header file for
-their default definitions. One possible use for overriding these is to
-avoid the C<struct ev_loop *> as first argument in all cases, or to use
-method calls instead of plain function calls in C++.
-
-=back
-
-=head2 EXPORTED API SYMBOLS
-
-If you need to re-export the API (e.g. via a DLL) and you need a list of
-exported symbols, you can use the provided F<Symbol.*> files which list
-all public symbols, one per line:
-
- Symbols.ev for libev proper
- Symbols.event for the libevent emulation
-
-This can also be used to rename all public symbols to avoid clashes with
-multiple versions of libev linked together (which is obviously bad in
-itself, but sometimes it is inconvenient to avoid this).
-
-A sed command like this will create wrapper C<#define>'s that you need to
-include before including F<ev.h>:
-
- <Symbols.ev sed -e "s/.*/#define & myprefix_&/" >wrap.h
-
-This would create a file F<wrap.h> which essentially looks like this:
-
- #define ev_backend myprefix_ev_backend
- #define ev_check_start myprefix_ev_check_start
- #define ev_check_stop myprefix_ev_check_stop
- ...
-
-=head2 EXAMPLES
-
-For a real-world example of a program the includes libev
-verbatim, you can have a look at the EV perl module
-(L<http://software.schmorp.de/pkg/EV.html>). It has the libev files in
-the F<libev/> subdirectory and includes them in the F<EV/EVAPI.h> (public
-interface) and F<EV.xs> (implementation) files. Only the F<EV.xs> file
-will be compiled. It is pretty complex because it provides its own header
-file.
-
-The usage in rxvt-unicode is simpler. It has a F<ev_cpp.h> header file
-that everybody includes and which overrides some configure choices:
-
- #define EV_FEATURES 8
- #define EV_USE_SELECT 1
- #define EV_PREPARE_ENABLE 1
- #define EV_IDLE_ENABLE 1
- #define EV_SIGNAL_ENABLE 1
- #define EV_CHILD_ENABLE 1
- #define EV_USE_STDEXCEPT 0
- #define EV_CONFIG_H <config.h>
-
- #include "ev++.h"
-
-And a F<ev_cpp.C> implementation file that contains libev proper and is compiled:
-
- #include "ev_cpp.h"
- #include "ev.c"
-
-=head1 INTERACTION WITH OTHER PROGRAMS, LIBRARIES OR THE ENVIRONMENT
-
-=head2 THREADS AND COROUTINES
-
-=head3 THREADS
-
-All libev functions are reentrant and thread-safe unless explicitly
-documented otherwise, but libev implements no locking itself. This means
-that you can use as many loops as you want in parallel, as long as there
-are no concurrent calls into any libev function with the same loop
-parameter (C<ev_default_*> calls have an implicit default loop parameter,
-of course): libev guarantees that different event loops share no data
-structures that need any locking.
-
-Or to put it differently: calls with different loop parameters can be done
-concurrently from multiple threads, calls with the same loop parameter
-must be done serially (but can be done from different threads, as long as
-only one thread ever is inside a call at any point in time, e.g. by using
-a mutex per loop).
-
-Specifically to support threads (and signal handlers), libev implements
-so-called C<ev_async> watchers, which allow some limited form of
-concurrency on the same event loop, namely waking it up "from the
-outside".
-
-If you want to know which design (one loop, locking, or multiple loops
-without or something else still) is best for your problem, then I cannot
-help you, but here is some generic advice:
-
-=over 4
-
-=item * most applications have a main thread: use the default libev loop
-in that thread, or create a separate thread running only the default loop.
-
-This helps integrating other libraries or software modules that use libev
-themselves and don't care/know about threading.
-
-=item * one loop per thread is usually a good model.
-
-Doing this is almost never wrong, sometimes a better-performance model
-exists, but it is always a good start.
-
-=item * other models exist, such as the leader/follower pattern, where one
-loop is handed through multiple threads in a kind of round-robin fashion.
-
-Choosing a model is hard - look around, learn, know that usually you can do
-better than you currently do :-)
-
-=item * often you need to talk to some other thread which blocks in the
-event loop.
-
-C<ev_async> watchers can be used to wake them up from other threads safely
-(or from signal contexts...).
-
-An example use would be to communicate signals or other events that only
-work in the default loop by registering the signal watcher with the
-default loop and triggering an C<ev_async> watcher from the default loop
-watcher callback into the event loop interested in the signal.
-
-=back
-
-See also L<THREAD LOCKING EXAMPLE>.
-
-=head3 COROUTINES
-
-Libev is very accommodating to coroutines ("cooperative threads"):
-libev fully supports nesting calls to its functions from different
-coroutines (e.g. you can call C<ev_run> on the same loop from two
-different coroutines, and switch freely between both coroutines running
-the loop, as long as you don't confuse yourself). The only exception is
-that you must not do this from C<ev_periodic> reschedule callbacks.
-
-Care has been taken to ensure that libev does not keep local state inside
-C<ev_run>, and other calls do not usually allow for coroutine switches as
-they do not call any callbacks.
-
-=head2 COMPILER WARNINGS
-
-Depending on your compiler and compiler settings, you might get no or a
-lot of warnings when compiling libev code. Some people are apparently
-scared by this.
-
-However, these are unavoidable for many reasons. For one, each compiler
-has different warnings, and each user has different tastes regarding
-warning options. "Warn-free" code therefore cannot be a goal except when
-targeting a specific compiler and compiler-version.
-
-Another reason is that some compiler warnings require elaborate
-workarounds, or other changes to the code that make it less clear and less
-maintainable.
-
-And of course, some compiler warnings are just plain stupid, or simply
-wrong (because they don't actually warn about the condition their message
-seems to warn about). For example, certain older gcc versions had some
-warnings that resulted in an extreme number of false positives. These have
-been fixed, but some people still insist on making code warn-free with
-such buggy versions.
-
-While libev is written to generate as few warnings as possible,
-"warn-free" code is not a goal, and it is recommended not to build libev
-with any compiler warnings enabled unless you are prepared to cope with
-them (e.g. by ignoring them). Remember that warnings are just that:
-warnings, not errors, or proof of bugs.
-
-
-=head2 VALGRIND
-
-Valgrind has a special section here because it is a popular tool that is
-highly useful. Unfortunately, valgrind reports are very hard to interpret.
-
-If you think you found a bug (memory leak, uninitialised data access etc.)
-in libev, then check twice: If valgrind reports something like:
-
- ==2274== definitely lost: 0 bytes in 0 blocks.
- ==2274== possibly lost: 0 bytes in 0 blocks.
- ==2274== still reachable: 256 bytes in 1 blocks.
-
-Then there is no memory leak, just as memory accounted to global variables
-is not a memleak - the memory is still being referenced, and didn't leak.
-
-Similarly, under some circumstances, valgrind might report kernel bugs
-as if it were a bug in libev (e.g. in realloc or in the poll backend,
-although an acceptable workaround has been found here), or it might be
-confused.
-
-Keep in mind that valgrind is a very good tool, but only a tool. Don't
-make it into some kind of religion.
-
-If you are unsure about something, feel free to contact the mailing list
-with the full valgrind report and an explanation on why you think this
-is a bug in libev (best check the archives, too :). However, don't be
-annoyed when you get a brisk "this is no bug" answer and take the chance
-of learning how to interpret valgrind properly.
-
-If you need, for some reason, empty reports from valgrind for your project
-I suggest using suppression lists.
-
-
-=head1 PORTABILITY NOTES
-
-=head2 GNU/LINUX 32 BIT LIMITATIONS
-
-GNU/Linux is the only common platform that supports 64 bit file/large file
-interfaces but I<disables> them by default.
-
-That means that libev compiled in the default environment doesn't support
-files larger than 2GiB or so, which mainly affects C<ev_stat> watchers.
-
-Unfortunately, many programs try to work around this GNU/Linux issue
-by enabling the large file API, which makes them incompatible with the
-standard libev compiled for their system.
-
-Likewise, libev cannot enable the large file API itself as this would
-suddenly make it incompatible to the default compile time environment,
-i.e. all programs not using special compile switches.
-
-=head2 OS/X AND DARWIN BUGS
-
-The whole thing is a bug if you ask me - basically any system interface
-you touch is broken, whether it is locales, poll, kqueue or even the
-OpenGL drivers.
-
-=head3 C<kqueue> is buggy
-
-The kqueue syscall is broken in all known versions - most versions support
-only sockets, many support pipes.
-
-Libev tries to work around this by not using C<kqueue> by default on this
-rotten platform, but of course you can still ask for it when creating a
-loop - embedding a socket-only kqueue loop into a select-based one is
-probably going to work well.
-
-=head3 C<poll> is buggy
-
-Instead of fixing C<kqueue>, Apple replaced their (working) C<poll>
-implementation by something calling C<kqueue> internally around the 10.5.6
-release, so now C<kqueue> I<and> C<poll> are broken.
-
-Libev tries to work around this by not using C<poll> by default on
-this rotten platform, but of course you can still ask for it when creating
-a loop.
-
-=head3 C<select> is buggy
-
-All that's left is C<select>, and of course Apple found a way to fuck this
-one up as well: On OS/X, C<select> actively limits the number of file
-descriptors you can pass in to 1024 - your program suddenly crashes when
-you use more.
-
-There is an undocumented "workaround" for this - defining
-C<_DARWIN_UNLIMITED_SELECT>, which libev tries to use, so select I<should>
-work on OS/X.
-
-=head2 SOLARIS PROBLEMS AND WORKAROUNDS
-
-=head3 C<errno> reentrancy
-
-The default compile environment on Solaris is unfortunately so
-thread-unsafe that you can't even use components/libraries compiled
-without C<-D_REENTRANT> in a threaded program, which, of course, isn't
-defined by default. A valid, if stupid, implementation choice.
-
-If you want to use libev in threaded environments you have to make sure
-it's compiled with C<_REENTRANT> defined.
-
-=head3 Event port backend
-
-The scalable event interface for Solaris is called "event
-ports". Unfortunately, this mechanism is very buggy in all major
-releases. If you run into high CPU usage, your program freezes or you get
-a large number of spurious wakeups, make sure you have all the relevant
-and latest kernel patches applied. No, I don't know which ones, but there
-are multiple ones to apply, and afterwards, event ports actually work
-great.
-
-If you can't get it to work, you can try running the program by setting
-the environment variable C<LIBEV_FLAGS=3> to only allow C<poll> and
-C<select> backends.
-
-=head2 AIX POLL BUG
-
-AIX unfortunately has a broken C<poll.h> header. Libev works around
-this by trying to avoid the poll backend altogether (i.e. it's not even
-compiled in), which normally isn't a big problem as C<select> works fine
-with large bitsets on AIX, and AIX is dead anyway.
-
-=head2 WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS
-
-=head3 General issues
-
-Win32 doesn't support any of the standards (e.g. POSIX) that libev
-requires, and its I/O model is fundamentally incompatible with the POSIX
-model. Libev still offers limited functionality on this platform in
-the form of the C<EVBACKEND_SELECT> backend, and only supports socket
-descriptors. This only applies when using Win32 natively, not when using
-e.g. cygwin. Actually, it only applies to the microsofts own compilers,
-as every compielr comes with a slightly differently broken/incompatible
-environment.
-
-Lifting these limitations would basically require the full
-re-implementation of the I/O system. If you are into this kind of thing,
-then note that glib does exactly that for you in a very portable way (note
-also that glib is the slowest event library known to man).
-
-There is no supported compilation method available on windows except
-embedding it into other applications.
-
-Sensible signal handling is officially unsupported by Microsoft - libev
-tries its best, but under most conditions, signals will simply not work.
-
-Not a libev limitation but worth mentioning: windows apparently doesn't
-accept large writes: instead of resulting in a partial write, windows will
-either accept everything or return C<ENOBUFS> if the buffer is too large,
-so make sure you only write small amounts into your sockets (less than a
-megabyte seems safe, but this apparently depends on the amount of memory
-available).
-
-Due to the many, low, and arbitrary limits on the win32 platform and
-the abysmal performance of winsockets, using a large number of sockets
-is not recommended (and not reasonable). If your program needs to use
-more than a hundred or so sockets, then likely it needs to use a totally
-different implementation for windows, as libev offers the POSIX readiness
-notification model, which cannot be implemented efficiently on windows
-(due to Microsoft monopoly games).
-
-A typical way to use libev under windows is to embed it (see the embedding
-section for details) and use the following F<evwrap.h> header file instead
-of F<ev.h>:
-
- #define EV_STANDALONE /* keeps ev from requiring config.h */
- #define EV_SELECT_IS_WINSOCKET 1 /* configure libev for windows select */
-
- #include "ev.h"
-
-And compile the following F<evwrap.c> file into your project (make sure
-you do I<not> compile the F<ev.c> or any other embedded source files!):
-
- #include "evwrap.h"
- #include "ev.c"
-
-=head3 The winsocket C<select> function
-
-The winsocket C<select> function doesn't follow POSIX in that it
-requires socket I<handles> and not socket I<file descriptors> (it is
-also extremely buggy). This makes select very inefficient, and also
-requires a mapping from file descriptors to socket handles (the Microsoft
-C runtime provides the function C<_open_osfhandle> for this). See the
-discussion of the C<EV_SELECT_USE_FD_SET>, C<EV_SELECT_IS_WINSOCKET> and
-C<EV_FD_TO_WIN32_HANDLE> preprocessor symbols for more info.
-
-The configuration for a "naked" win32 using the Microsoft runtime
-libraries and raw winsocket select is:
-
- #define EV_USE_SELECT 1
- #define EV_SELECT_IS_WINSOCKET 1 /* forces EV_SELECT_USE_FD_SET, too */
-
-Note that winsockets handling of fd sets is O(n), so you can easily get a
-complexity in the O(n²) range when using win32.
-
-=head3 Limited number of file descriptors
-
-Windows has numerous arbitrary (and low) limits on things.
-
-Early versions of winsocket's select only supported waiting for a maximum
-of C<64> handles (probably owning to the fact that all windows kernels
-can only wait for C<64> things at the same time internally; Microsoft
-recommends spawning a chain of threads and wait for 63 handles and the
-previous thread in each. Sounds great!).
-
-Newer versions support more handles, but you need to define C<FD_SETSIZE>
-to some high number (e.g. C<2048>) before compiling the winsocket select
-call (which might be in libev or elsewhere, for example, perl and many
-other interpreters do their own select emulation on windows).
-
-Another limit is the number of file descriptors in the Microsoft runtime
-libraries, which by default is C<64> (there must be a hidden I<64>
-fetish or something like this inside Microsoft). You can increase this
-by calling C<_setmaxstdio>, which can increase this limit to C<2048>
-(another arbitrary limit), but is broken in many versions of the Microsoft
-runtime libraries. This might get you to about C<512> or C<2048> sockets
-(depending on windows version and/or the phase of the moon). To get more,
-you need to wrap all I/O functions and provide your own fd management, but
-the cost of calling select (O(n²)) will likely make this unworkable.
-
-=head2 PORTABILITY REQUIREMENTS
-
-In addition to a working ISO-C implementation and of course the
-backend-specific APIs, libev relies on a few additional extensions:
-
-=over 4
-
-=item C<void (*)(ev_watcher_type *, int revents)> must have compatible
-calling conventions regardless of C<ev_watcher_type *>.
-
-Libev assumes not only that all watcher pointers have the same internal
-structure (guaranteed by POSIX but not by ISO C for example), but it also
-assumes that the same (machine) code can be used to call any watcher
-callback: The watcher callbacks have different type signatures, but libev
-calls them using an C<ev_watcher *> internally.
-
-=item pointer accesses must be thread-atomic
-
-Accessing a pointer value must be atomic, it must both be readable and
-writable in one piece - this is the case on all current architectures.
-
-=item C<sig_atomic_t volatile> must be thread-atomic as well
-
-The type C<sig_atomic_t volatile> (or whatever is defined as
-C<EV_ATOMIC_T>) must be atomic with respect to accesses from different
-threads. This is not part of the specification for C<sig_atomic_t>, but is
-believed to be sufficiently portable.
-
-=item C<sigprocmask> must work in a threaded environment
-
-Libev uses C<sigprocmask> to temporarily block signals. This is not
-allowed in a threaded program (C<pthread_sigmask> has to be used). Typical
-pthread implementations will either allow C<sigprocmask> in the "main
-thread" or will block signals process-wide, both behaviours would
-be compatible with libev. Interaction between C<sigprocmask> and
-C<pthread_sigmask> could complicate things, however.
-
-The most portable way to handle signals is to block signals in all threads
-except the initial one, and run the default loop in the initial thread as
-well.
-
-=item C<long> must be large enough for common memory allocation sizes
-
-To improve portability and simplify its API, libev uses C<long> internally
-instead of C<size_t> when allocating its data structures. On non-POSIX
-systems (Microsoft...) this might be unexpectedly low, but is still at
-least 31 bits everywhere, which is enough for hundreds of millions of
-watchers.
-
-=item C<double> must hold a time value in seconds with enough accuracy
-
-The type C<double> is used to represent timestamps. It is required to
-have at least 51 bits of mantissa (and 9 bits of exponent), which is
-good enough for at least into the year 4000 with millisecond accuracy
-(the design goal for libev). This requirement is overfulfilled by
-implementations using IEEE 754, which is basically all existing ones. With
-IEEE 754 doubles, you get microsecond accuracy until at least 2200.
-
-=back
-
-If you know of other additional requirements drop me a note.
-
-
-=head1 ALGORITHMIC COMPLEXITIES
-
-In this section the complexities of (many of) the algorithms used inside
-libev will be documented. For complexity discussions about backends see
-the documentation for C<ev_default_init>.
-
-All of the following are about amortised time: If an array needs to be
-extended, libev needs to realloc and move the whole array, but this
-happens asymptotically rarer with higher number of elements, so O(1) might
-mean that libev does a lengthy realloc operation in rare cases, but on
-average it is much faster and asymptotically approaches constant time.
-
-=over 4
-
-=item Starting and stopping timer/periodic watchers: O(log skipped_other_timers)
-
-This means that, when you have a watcher that triggers in one hour and
-there are 100 watchers that would trigger before that, then inserting will
-have to skip roughly seven (C<ld 100>) of these watchers.
-
-=item Changing timer/periodic watchers (by autorepeat or calling again): O(log skipped_other_timers)
-
-That means that changing a timer costs less than removing/adding them,
-as only the relative motion in the event queue has to be paid for.
-
-=item Starting io/check/prepare/idle/signal/child/fork/async watchers: O(1)
-
-These just add the watcher into an array or at the head of a list.
-
-=item Stopping check/prepare/idle/fork/async watchers: O(1)
-
-=item Stopping an io/signal/child watcher: O(number_of_watchers_for_this_(fd/signal/pid % EV_PID_HASHSIZE))
-
-These watchers are stored in lists, so they need to be walked to find the
-correct watcher to remove. The lists are usually short (you don't usually
-have many watchers waiting for the same fd or signal: one is typical, two
-is rare).
-
-=item Finding the next timer in each loop iteration: O(1)
-
-By virtue of using a binary or 4-heap, the next timer is always found at a
-fixed position in the storage array.
-
-=item Each change on a file descriptor per loop iteration: O(number_of_watchers_for_this_fd)
-
-A change means an I/O watcher gets started or stopped, which requires
-libev to recalculate its status (and possibly tell the kernel, depending
-on backend and whether C<ev_io_set> was used).
-
-=item Activating one watcher (putting it into the pending state): O(1)
-
-=item Priority handling: O(number_of_priorities)
-
-Priorities are implemented by allocating some space for each
-priority. When doing priority-based operations, libev usually has to
-linearly search all the priorities, but starting/stopping and activating
-watchers becomes O(1) with respect to priority handling.
-
-=item Sending an ev_async: O(1)
-
-=item Processing ev_async_send: O(number_of_async_watchers)
-
-=item Processing signals: O(max_signal_number)
-
-Sending involves a system call I<iff> there were no other C<ev_async_send>
-calls in the current loop iteration. Checking for async and signal events
-involves iterating over all running async watchers or all signal numbers.
-
-=back
-
-
-=head1 PORTING FROM LIBEV 3.X TO 4.X
-
-The major version 4 introduced some incompatible changes to the API.
-
-At the moment, the C<ev.h> header file provides compatibility definitions
-for all changes, so most programs should still compile. The compatibility
-layer might be removed in later versions of libev, so better update to the
-new API early than late.
-
-=over 4
-
-=item C<EV_COMPAT3> backwards compatibility mechanism
-
-The backward compatibility mechanism can be controlled by
-C<EV_COMPAT3>. See L<PREPROCESSOR SYMBOLS/MACROS> in the L<EMBEDDING>
-section.
-
-=item C<ev_default_destroy> and C<ev_default_fork> have been removed
-
-These calls can be replaced easily by their C<ev_loop_xxx> counterparts:
-
- ev_loop_destroy (EV_DEFAULT_UC);
- ev_loop_fork (EV_DEFAULT);
-
-=item function/symbol renames
-
-A number of functions and symbols have been renamed:
-
- ev_loop => ev_run
- EVLOOP_NONBLOCK => EVRUN_NOWAIT
- EVLOOP_ONESHOT => EVRUN_ONCE
-
- ev_unloop => ev_break
- EVUNLOOP_CANCEL => EVBREAK_CANCEL
- EVUNLOOP_ONE => EVBREAK_ONE
- EVUNLOOP_ALL => EVBREAK_ALL
-
- EV_TIMEOUT => EV_TIMER
-
- ev_loop_count => ev_iteration
- ev_loop_depth => ev_depth
- ev_loop_verify => ev_verify
-
-Most functions working on C<struct ev_loop> objects don't have an
-C<ev_loop_> prefix, so it was removed; C<ev_loop>, C<ev_unloop> and
-associated constants have been renamed to not collide with the C<struct
-ev_loop> anymore and C<EV_TIMER> now follows the same naming scheme
-as all other watcher types. Note that C<ev_loop_fork> is still called
-C<ev_loop_fork> because it would otherwise clash with the C<ev_fork>
-typedef.
-
-=item C<EV_MINIMAL> mechanism replaced by C<EV_FEATURES>
-
-The preprocessor symbol C<EV_MINIMAL> has been replaced by a different
-mechanism, C<EV_FEATURES>. Programs using C<EV_MINIMAL> usually compile
-and work, but the library code will of course be larger.
-
-=back
-
-
-=head1 GLOSSARY
-
-=over 4
-
-=item active
-
-A watcher is active as long as it has been started and not yet stopped.
-See L<WATCHER STATES> for details.
-
-=item application
-
-In this document, an application is whatever is using libev.
-
-=item backend
-
-The part of the code dealing with the operating system interfaces.
-
-=item callback
-
-The address of a function that is called when some event has been
-detected. Callbacks are being passed the event loop, the watcher that
-received the event, and the actual event bitset.
-
-=item callback/watcher invocation
-
-The act of calling the callback associated with a watcher.
-
-=item event
-
-A change of state of some external event, such as data now being available
-for reading on a file descriptor, time having passed or simply not having
-any other events happening anymore.
-
-In libev, events are represented as single bits (such as C<EV_READ> or
-C<EV_TIMER>).
-
-=item event library
-
-A software package implementing an event model and loop.
-
-=item event loop
-
-An entity that handles and processes external events and converts them
-into callback invocations.
-
-=item event model
-
-The model used to describe how an event loop handles and processes
-watchers and events.
-
-=item pending
-
-A watcher is pending as soon as the corresponding event has been
-detected. See L<WATCHER STATES> for details.
-
-=item real time
-
-The physical time that is observed. It is apparently strictly monotonic :)
-
-=item wall-clock time
-
-The time and date as shown on clocks. Unlike real time, it can actually
-be wrong and jump forwards and backwards, e.g. when you adjust your
-clock.
-
-=item watcher
-
-A data structure that describes interest in certain events. Watchers need
-to be started (attached to an event loop) before they can receive events.
-
-=back
-
-=head1 AUTHOR
-
-Marc Lehmann <libev@schmorp.de>, with repeated corrections by Mikael
-Magnusson and Emanuele Giaquinta, and minor corrections by many others.
-
+++ /dev/null
-/*
- * libev epoll fd activity backend
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-/*
- * general notes about epoll:
- *
- * a) epoll silently removes fds from the fd set. as nothing tells us
- * that an fd has been removed otherwise, we have to continually
- * "rearm" fds that we suspect *might* have changed (same
- * problem with kqueue, but much less costly there).
- * b) the fact that ADD != MOD creates a lot of extra syscalls due to a)
- * and seems not to have any advantage.
- * c) the inability to handle fork or file descriptors (think dup)
- * limits the applicability over poll, so this is not a generic
- * poll replacement.
- * d) epoll doesn't work the same as select with many file descriptors
- * (such as files). while not critical, no other advanced interface
- * seems to share this (rather non-unixy) limitation.
- * e) epoll claims to be embeddable, but in practise you never get
- * a ready event for the epoll fd (broken: <=2.6.26, working: >=2.6.32).
- * f) epoll_ctl returning EPERM means the fd is always ready.
- *
- * lots of "weird code" and complication handling in this file is due
- * to these design problems with epoll, as we try very hard to avoid
- * epoll_ctl syscalls for common usage patterns and handle the breakage
- * ensuing from receiving events for closed and otherwise long gone
- * file descriptors.
- */
-
-#include <sys/epoll.h>
-
-#define EV_EMASK_EPERM 0x80
-
-static void
-epoll_modify (EV_P_ int fd, int oev, int nev)
-{
- struct epoll_event ev;
- unsigned char oldmask;
-
- /*
- * we handle EPOLL_CTL_DEL by ignoring it here
- * on the assumption that the fd is gone anyways
- * if that is wrong, we have to handle the spurious
- * event in epoll_poll.
- * if the fd is added again, we try to ADD it, and, if that
- * fails, we assume it still has the same eventmask.
- */
- if (!nev)
- return;
-
- oldmask = anfds [fd].emask;
- anfds [fd].emask = nev;
-
- /* store the generation counter in the upper 32 bits, the fd in the lower 32 bits */
- ev.data.u64 = (uint64_t)(uint32_t)fd
- | ((uint64_t)(uint32_t)++anfds [fd].egen << 32);
- ev.events = (nev & EV_READ ? EPOLLIN : 0)
- | (nev & EV_WRITE ? EPOLLOUT : 0);
-
- if (expect_true (!epoll_ctl (backend_fd, oev && oldmask != nev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, fd, &ev)))
- return;
-
- if (expect_true (errno == ENOENT))
- {
- /* if ENOENT then the fd went away, so try to do the right thing */
- if (!nev)
- goto dec_egen;
-
- if (!epoll_ctl (backend_fd, EPOLL_CTL_ADD, fd, &ev))
- return;
- }
- else if (expect_true (errno == EEXIST))
- {
- /* EEXIST means we ignored a previous DEL, but the fd is still active */
- /* if the kernel mask is the same as the new mask, we assume it hasn't changed */
- if (oldmask == nev)
- goto dec_egen;
-
- if (!epoll_ctl (backend_fd, EPOLL_CTL_MOD, fd, &ev))
- return;
- }
- else if (expect_true (errno == EPERM))
- {
- /* EPERM means the fd is always ready, but epoll is too snobbish */
- /* to handle it, unlike select or poll. */
- anfds [fd].emask = EV_EMASK_EPERM;
-
- /* add fd to epoll_eperms, if not already inside */
- if (!(oldmask & EV_EMASK_EPERM))
- {
- array_needsize (int, epoll_eperms, epoll_epermmax, epoll_epermcnt + 1, EMPTY2);
- epoll_eperms [epoll_epermcnt++] = fd;
- }
-
- return;
- }
-
- fd_kill (EV_A_ fd);
-
-dec_egen:
- /* we didn't successfully call epoll_ctl, so decrement the generation counter again */
- --anfds [fd].egen;
-}
-
-static void
-epoll_poll (EV_P_ ev_tstamp timeout)
-{
- int i;
- int eventcnt;
-
- /* epoll wait times cannot be larger than (LONG_MAX - 999UL) / HZ msecs, which is below */
- /* the default libev max wait time, however. */
- EV_RELEASE_CB;
- eventcnt = epoll_wait (backend_fd, epoll_events, epoll_eventmax,
- epoll_epermcnt ? 0 : ev_timeout_to_ms (timeout));
- EV_ACQUIRE_CB;
-
- if (expect_false (eventcnt < 0))
- {
- if (errno != EINTR)
- ev_syserr ("(libev) epoll_wait");
-
- return;
- }
-
- for (i = 0; i < eventcnt; ++i)
- {
- struct epoll_event *ev = epoll_events + i;
-
- int fd = (uint32_t)ev->data.u64; /* mask out the lower 32 bits */
- int want = anfds [fd].events;
- int got = (ev->events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0)
- | (ev->events & (EPOLLIN | EPOLLERR | EPOLLHUP) ? EV_READ : 0);
-
- /* check for spurious notification */
- /* we assume that fd is always in range, as we never shrink the anfds array */
- if (expect_false ((uint32_t)anfds [fd].egen != (uint32_t)(ev->data.u64 >> 32)))
- {
- /* recreate kernel state */
- postfork = 1;
- continue;
- }
-
- if (expect_false (got & ~want))
- {
- anfds [fd].emask = want;
-
- /* we received an event but are not interested in it, try mod or del */
- /* I don't think we ever need MOD, but let's handle it anyways */
- ev->events = (want & EV_READ ? EPOLLIN : 0)
- | (want & EV_WRITE ? EPOLLOUT : 0);
-
- /* pre-2.6.9 kernels require a non-null pointer with EPOLL_CTL_DEL, */
- /* which is fortunately easy to do for us. */
- if (epoll_ctl (backend_fd, want ? EPOLL_CTL_MOD : EPOLL_CTL_DEL, fd, ev))
- {
- postfork = 1; /* an error occurred, recreate kernel state */
- continue;
- }
- }
-
- fd_event (EV_A_ fd, got);
- }
-
- /* if the receive array was full, increase its size */
- if (expect_false (eventcnt == epoll_eventmax))
- {
- ev_free (epoll_events);
- epoll_eventmax = array_nextsize (sizeof (struct epoll_event), epoll_eventmax, epoll_eventmax + 1);
- epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax);
- }
-
- /* now synthesize events for all fds where epoll fails, while select works... */
- for (i = epoll_epermcnt; i--; )
- {
- int fd = epoll_eperms [i];
- unsigned char events = anfds [fd].events & (EV_READ | EV_WRITE);
-
- if (anfds [fd].emask & EV_EMASK_EPERM && events)
- fd_event (EV_A_ fd, events);
- else
- epoll_eperms [i] = epoll_eperms [--epoll_epermcnt];
- }
-}
-
-int inline_size
-epoll_init (EV_P_ int flags)
-{
-#ifdef EPOLL_CLOEXEC
- backend_fd = epoll_create1 (EPOLL_CLOEXEC);
-
- if (backend_fd <= 0)
-#endif
- backend_fd = epoll_create (256);
-
- if (backend_fd < 0)
- return 0;
-
- fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
- backend_fudge = 0.; /* kernel sources seem to indicate this to be zero */
- backend_modify = epoll_modify;
- backend_poll = epoll_poll;
-
- epoll_eventmax = 64; /* initial number of events receivable per poll */
- epoll_events = (struct epoll_event *)ev_malloc (sizeof (struct epoll_event) * epoll_eventmax);
-
- return EVBACKEND_EPOLL;
-}
-
-void inline_size
-epoll_destroy (EV_P)
-{
- ev_free (epoll_events);
- array_free (epoll_eperm, EMPTY);
-}
-
-void inline_size
-epoll_fork (EV_P)
-{
- close (backend_fd);
-
- while ((backend_fd = epoll_create (256)) < 0)
- ev_syserr ("(libev) epoll_create");
-
- fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
- fd_rearm_all (EV_A);
-}
-
+++ /dev/null
-/*
- * libev kqueue backend
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/event.h>
-#include <string.h>
-#include <errno.h>
-
-void inline_speed
-kqueue_change (EV_P_ int fd, int filter, int flags, int fflags)
-{
- ++kqueue_changecnt;
- array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2);
-
- EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0);
-}
-
-/* OS X at least needs this */
-#ifndef EV_ENABLE
-# define EV_ENABLE 0
-#endif
-#ifndef NOTE_EOF
-# define NOTE_EOF 0
-#endif
-
-static void
-kqueue_modify (EV_P_ int fd, int oev, int nev)
-{
- if (oev != nev)
- {
- if (oev & EV_READ)
- kqueue_change (EV_A_ fd, EVFILT_READ , EV_DELETE, 0);
-
- if (oev & EV_WRITE)
- kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_DELETE, 0);
- }
-
- /* to detect close/reopen reliably, we have to re-add */
- /* event requests even when oev == nev */
-
- if (nev & EV_READ)
- kqueue_change (EV_A_ fd, EVFILT_READ , EV_ADD | EV_ENABLE, NOTE_EOF);
-
- if (nev & EV_WRITE)
- kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_ADD | EV_ENABLE, NOTE_EOF);
-}
-
-static void
-kqueue_poll (EV_P_ ev_tstamp timeout)
-{
- int res, i;
- struct timespec ts;
-
- /* need to resize so there is enough space for errors */
- if (kqueue_changecnt > kqueue_eventmax)
- {
- ev_free (kqueue_events);
- kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_changecnt);
- kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
- }
-
- EV_RELEASE_CB;
- EV_TS_SET (ts, timeout);
- res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts);
- EV_ACQUIRE_CB;
- kqueue_changecnt = 0;
-
- if (expect_false (res < 0))
- {
- if (errno != EINTR)
- ev_syserr ("(libev) kevent");
-
- return;
- }
-
- for (i = 0; i < res; ++i)
- {
- int fd = kqueue_events [i].ident;
-
- if (expect_false (kqueue_events [i].flags & EV_ERROR))
- {
- int err = kqueue_events [i].data;
-
- /* we are only interested in errors for fds that we are interested in :) */
- if (anfds [fd].events)
- {
- if (err == ENOENT) /* resubmit changes on ENOENT */
- kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
- else if (err == EBADF) /* on EBADF, we re-check the fd */
- {
- if (fd_valid (fd))
- kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
- else
- fd_kill (EV_A_ fd);
- }
- else /* on all other errors, we error out on the fd */
- fd_kill (EV_A_ fd);
- }
- }
- else
- fd_event (
- EV_A_
- fd,
- kqueue_events [i].filter == EVFILT_READ ? EV_READ
- : kqueue_events [i].filter == EVFILT_WRITE ? EV_WRITE
- : 0
- );
- }
-
- if (expect_false (res == kqueue_eventmax))
- {
- ev_free (kqueue_events);
- kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_eventmax + 1);
- kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
- }
-}
-
-int inline_size
-kqueue_init (EV_P_ int flags)
-{
- /* Initialize the kernel queue */
- if ((backend_fd = kqueue ()) < 0)
- return 0;
-
- fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
-
- backend_fudge = 0.;
- backend_modify = kqueue_modify;
- backend_poll = kqueue_poll;
-
- kqueue_eventmax = 64; /* initial number of events receivable per poll */
- kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
-
- kqueue_changes = 0;
- kqueue_changemax = 0;
- kqueue_changecnt = 0;
-
- return EVBACKEND_KQUEUE;
-}
-
-void inline_size
-kqueue_destroy (EV_P)
-{
- ev_free (kqueue_events);
- ev_free (kqueue_changes);
-}
-
-void inline_size
-kqueue_fork (EV_P)
-{
- close (backend_fd);
-
- while ((backend_fd = kqueue ()) < 0)
- ev_syserr ("(libev) kqueue");
-
- fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
- /* re-register interest in fds */
- fd_rearm_all (EV_A);
-}
-
+++ /dev/null
-/*
- * libev poll fd activity backend
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include <poll.h>
-
-void inline_size
-pollidx_init (int *base, int count)
-{
- /* consider using memset (.., -1, ...), which is practically guaranteed
- * to work on all systems implementing poll */
- while (count--)
- *base++ = -1;
-}
-
-static void
-poll_modify (EV_P_ int fd, int oev, int nev)
-{
- int idx;
-
- if (oev == nev)
- return;
-
- array_needsize (int, pollidxs, pollidxmax, fd + 1, pollidx_init);
-
- idx = pollidxs [fd];
-
- if (idx < 0) /* need to allocate a new pollfd */
- {
- pollidxs [fd] = idx = pollcnt++;
- array_needsize (struct pollfd, polls, pollmax, pollcnt, EMPTY2);
- polls [idx].fd = fd;
- }
-
- assert (polls [idx].fd == fd);
-
- if (nev)
- polls [idx].events =
- (nev & EV_READ ? POLLIN : 0)
- | (nev & EV_WRITE ? POLLOUT : 0);
- else /* remove pollfd */
- {
- pollidxs [fd] = -1;
-
- if (expect_true (idx < --pollcnt))
- {
- polls [idx] = polls [pollcnt];
- pollidxs [polls [idx].fd] = idx;
- }
- }
-}
-
-static void
-poll_poll (EV_P_ ev_tstamp timeout)
-{
- struct pollfd *p;
- int res;
-
- EV_RELEASE_CB;
- res = poll (polls, pollcnt, ev_timeout_to_ms (timeout));
- EV_ACQUIRE_CB;
-
- if (expect_false (res < 0))
- {
- if (errno == EBADF)
- fd_ebadf (EV_A);
- else if (errno == ENOMEM && !syserr_cb)
- fd_enomem (EV_A);
- else if (errno != EINTR)
- ev_syserr ("(libev) poll");
- }
- else
- for (p = polls; res; ++p)
- {
- assert (("libev: poll() returned illegal result, broken BSD kernel?", p < polls + pollcnt));
-
- if (expect_false (p->revents)) /* this expect is debatable */
- {
- --res;
-
- if (expect_false (p->revents & POLLNVAL))
- fd_kill (EV_A_ p->fd);
- else
- fd_event (
- EV_A_
- p->fd,
- (p->revents & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
- | (p->revents & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
- );
- }
- }
-}
-
-int inline_size
-poll_init (EV_P_ int flags)
-{
- backend_fudge = 0.; /* posix says this is zero */
- backend_modify = poll_modify;
- backend_poll = poll_poll;
-
- pollidxs = 0; pollidxmax = 0;
- polls = 0; pollmax = 0; pollcnt = 0;
-
- return EVBACKEND_POLL;
-}
-
-void inline_size
-poll_destroy (EV_P)
-{
- ev_free (pollidxs);
- ev_free (polls);
-}
-
+++ /dev/null
-/*
- * libev solaris event port backend
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-/* useful reading:
- *
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6268715 (random results)
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6455223 (just totally broken)
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6873782 (manpage ETIME)
- * http://bugs.opensolaris.org/view_bug.do?bug_id=6874410 (implementation ETIME)
- * http://www.mail-archive.com/networking-discuss@opensolaris.org/msg11898.html ETIME vs. nget
- * http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/event_port.c (libc)
- * http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/portfs/port.c#1325 (kernel)
- */
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <poll.h>
-#include <port.h>
-#include <string.h>
-#include <errno.h>
-
-void inline_speed
-port_associate_and_check (EV_P_ int fd, int ev)
-{
- if (0 >
- port_associate (
- backend_fd, PORT_SOURCE_FD, fd,
- (ev & EV_READ ? POLLIN : 0)
- | (ev & EV_WRITE ? POLLOUT : 0),
- 0
- )
- )
- {
- if (errno == EBADFD)
- fd_kill (EV_A_ fd);
- else
- ev_syserr ("(libev) port_associate");
- }
-}
-
-static void
-port_modify (EV_P_ int fd, int oev, int nev)
-{
- /* we need to reassociate no matter what, as closes are
- * once more silently being discarded.
- */
- if (!nev)
- {
- if (oev)
- port_dissociate (backend_fd, PORT_SOURCE_FD, fd);
- }
- else
- port_associate_and_check (EV_A_ fd, nev);
-}
-
-static void
-port_poll (EV_P_ ev_tstamp timeout)
-{
- int res, i;
- struct timespec ts;
- uint_t nget = 1;
-
- /* we initialise this to something we will skip in the loop, as */
- /* port_getn can return with nget unchanged, but no indication */
- /* whether it was the original value or has been updated :/ */
- port_events [0].portev_source = 0;
-
- EV_RELEASE_CB;
- EV_TS_SET (ts, timeout);
- res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);
- EV_ACQUIRE_CB;
-
- /* port_getn may or may not set nget on error */
- /* so we rely on port_events [0].portev_source not being updated */
- if (res == -1 && errno != ETIME && errno != EINTR)
- ev_syserr ("(libev) port_getn (see http://bugs.opensolaris.org/view_bug.do?bug_id=6268715, try LIBEV_FLAGS=3 env variable)");
-
- for (i = 0; i < nget; ++i)
- {
- if (port_events [i].portev_source == PORT_SOURCE_FD)
- {
- int fd = port_events [i].portev_object;
-
- fd_event (
- EV_A_
- fd,
- (port_events [i].portev_events & (POLLOUT | POLLERR | POLLHUP) ? EV_WRITE : 0)
- | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
- );
-
- fd_change (EV_A_ fd, EV__IOFDSET);
- }
- }
-
- if (expect_false (nget == port_eventmax))
- {
- ev_free (port_events);
- port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);
- port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
- }
-}
-
-int inline_size
-port_init (EV_P_ int flags)
-{
- /* Initialize the kernel queue */
- if ((backend_fd = port_create ()) < 0)
- return 0;
-
- assert (("libev: PORT_SOURCE_FD must not be zero", PORT_SOURCE_FD));
-
- fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
-
- backend_fudge = 1e-3; /* needed to compensate for port_getn returning early */
- backend_modify = port_modify;
- backend_poll = port_poll;
-
- port_eventmax = 64; /* initial number of events receivable per poll */
- port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
-
- return EVBACKEND_PORT;
-}
-
-void inline_size
-port_destroy (EV_P)
-{
- ev_free (port_events);
-}
-
-void inline_size
-port_fork (EV_P)
-{
- close (backend_fd);
-
- while ((backend_fd = port_create ()) < 0)
- ev_syserr ("(libev) port");
-
- fcntl (backend_fd, F_SETFD, FD_CLOEXEC);
-
- /* re-register interest in fds */
- fd_rearm_all (EV_A);
-}
-
+++ /dev/null
-/*
- * libev select fd activity backend
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef _WIN32
-/* for unix systems */
-# include <inttypes.h>
-# ifndef __hpux
-/* for REAL unix systems */
-# include <sys/select.h>
-# endif
-#endif
-
-#ifndef EV_SELECT_USE_FD_SET
-# ifdef NFDBITS
-# define EV_SELECT_USE_FD_SET 0
-# else
-# define EV_SELECT_USE_FD_SET 1
-# endif
-#endif
-
-#if EV_SELECT_IS_WINSOCKET
-# undef EV_SELECT_USE_FD_SET
-# define EV_SELECT_USE_FD_SET 1
-# undef NFDBITS
-# define NFDBITS 0
-#endif
-
-#if !EV_SELECT_USE_FD_SET
-# define NFDBYTES (NFDBITS / 8)
-#endif
-
-#include <string.h>
-
-static void
-select_modify (EV_P_ int fd, int oev, int nev)
-{
- if (oev == nev)
- return;
-
- {
-#if EV_SELECT_USE_FD_SET
-
- #if EV_SELECT_IS_WINSOCKET
- SOCKET handle = anfds [fd].handle;
- #else
- int handle = fd;
- #endif
-
- assert (("libev: fd >= FD_SETSIZE passed to fd_set-based select backend", fd < FD_SETSIZE));
-
- /* FD_SET is broken on windows (it adds the fd to a set twice or more,
- * which eventually leads to overflows). Need to call it only on changes.
- */
- #if EV_SELECT_IS_WINSOCKET
- if ((oev ^ nev) & EV_READ)
- #endif
- if (nev & EV_READ)
- FD_SET (handle, (fd_set *)vec_ri);
- else
- FD_CLR (handle, (fd_set *)vec_ri);
-
- #if EV_SELECT_IS_WINSOCKET
- if ((oev ^ nev) & EV_WRITE)
- #endif
- if (nev & EV_WRITE)
- FD_SET (handle, (fd_set *)vec_wi);
- else
- FD_CLR (handle, (fd_set *)vec_wi);
-
-#else
-
- int word = fd / NFDBITS;
- fd_mask mask = 1UL << (fd % NFDBITS);
-
- if (expect_false (vec_max <= word))
- {
- int new_max = word + 1;
-
- vec_ri = ev_realloc (vec_ri, new_max * NFDBYTES);
- vec_ro = ev_realloc (vec_ro, new_max * NFDBYTES); /* could free/malloc */
- vec_wi = ev_realloc (vec_wi, new_max * NFDBYTES);
- vec_wo = ev_realloc (vec_wo, new_max * NFDBYTES); /* could free/malloc */
- #ifdef _WIN32
- vec_eo = ev_realloc (vec_eo, new_max * NFDBYTES); /* could free/malloc */
- #endif
-
- for (; vec_max < new_max; ++vec_max)
- ((fd_mask *)vec_ri) [vec_max] =
- ((fd_mask *)vec_wi) [vec_max] = 0;
- }
-
- ((fd_mask *)vec_ri) [word] |= mask;
- if (!(nev & EV_READ))
- ((fd_mask *)vec_ri) [word] &= ~mask;
-
- ((fd_mask *)vec_wi) [word] |= mask;
- if (!(nev & EV_WRITE))
- ((fd_mask *)vec_wi) [word] &= ~mask;
-#endif
- }
-}
-
-static void
-select_poll (EV_P_ ev_tstamp timeout)
-{
- struct timeval tv;
- int res;
- int fd_setsize;
-
- EV_RELEASE_CB;
- EV_TV_SET (tv, timeout);
-
-#if EV_SELECT_USE_FD_SET
- fd_setsize = sizeof (fd_set);
-#else
- fd_setsize = vec_max * NFDBYTES;
-#endif
-
- memcpy (vec_ro, vec_ri, fd_setsize);
- memcpy (vec_wo, vec_wi, fd_setsize);
-
-#ifdef _WIN32
- /* pass in the write set as except set.
- * the idea behind this is to work around a windows bug that causes
- * errors to be reported as an exception and not by setting
- * the writable bit. this is so uncontrollably lame.
- */
- memcpy (vec_eo, vec_wi, fd_setsize);
- res = select (vec_max * NFDBITS, (fd_set *)vec_ro, (fd_set *)vec_wo, (fd_set *)vec_eo, &tv);
-#elif EV_SELECT_USE_FD_SET
- fd_setsize = anfdmax < FD_SETSIZE ? anfdmax : FD_SETSIZE;
- res = select (fd_setsize, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
-#else
- res = select (vec_max * NFDBITS, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
-#endif
- EV_ACQUIRE_CB;
-
- if (expect_false (res < 0))
- {
- #if EV_SELECT_IS_WINSOCKET
- errno = WSAGetLastError ();
- #endif
- #ifdef WSABASEERR
- /* on windows, select returns incompatible error codes, fix this */
- if (errno >= WSABASEERR && errno < WSABASEERR + 1000)
- if (errno == WSAENOTSOCK)
- errno = EBADF;
- else
- errno -= WSABASEERR;
- #endif
-
- #ifdef _WIN32
- /* select on windows erroneously returns EINVAL when no fd sets have been
- * provided (this is documented). what microsoft doesn't tell you that this bug
- * exists even when the fd sets _are_ provided, so we have to check for this bug
- * here and emulate by sleeping manually.
- * we also get EINVAL when the timeout is invalid, but we ignore this case here
- * and assume that EINVAL always means: you have to wait manually.
- */
- if (errno == EINVAL)
- {
- ev_sleep (timeout);
- return;
- }
- #endif
-
- if (errno == EBADF)
- fd_ebadf (EV_A);
- else if (errno == ENOMEM && !syserr_cb)
- fd_enomem (EV_A);
- else if (errno != EINTR)
- ev_syserr ("(libev) select");
-
- return;
- }
-
-#if EV_SELECT_USE_FD_SET
-
- {
- int fd;
-
- for (fd = 0; fd < anfdmax; ++fd)
- if (anfds [fd].events)
- {
- int events = 0;
- #if EV_SELECT_IS_WINSOCKET
- SOCKET handle = anfds [fd].handle;
- #else
- int handle = fd;
- #endif
-
- if (FD_ISSET (handle, (fd_set *)vec_ro)) events |= EV_READ;
- if (FD_ISSET (handle, (fd_set *)vec_wo)) events |= EV_WRITE;
- #ifdef _WIN32
- if (FD_ISSET (handle, (fd_set *)vec_eo)) events |= EV_WRITE;
- #endif
-
- if (expect_true (events))
- fd_event (EV_A_ fd, events);
- }
- }
-
-#else
-
- {
- int word, bit;
- for (word = vec_max; word--; )
- {
- fd_mask word_r = ((fd_mask *)vec_ro) [word];
- fd_mask word_w = ((fd_mask *)vec_wo) [word];
- #ifdef _WIN32
- word_w |= ((fd_mask *)vec_eo) [word];
- #endif
-
- if (word_r || word_w)
- for (bit = NFDBITS; bit--; )
- {
- fd_mask mask = 1UL << bit;
- int events = 0;
-
- events |= word_r & mask ? EV_READ : 0;
- events |= word_w & mask ? EV_WRITE : 0;
-
- if (expect_true (events))
- fd_event (EV_A_ word * NFDBITS + bit, events);
- }
- }
- }
-
-#endif
-}
-
-int inline_size
-select_init (EV_P_ int flags)
-{
- backend_fudge = 0.; /* posix says this is zero */
- backend_modify = select_modify;
- backend_poll = select_poll;
-
-#if EV_SELECT_USE_FD_SET
- vec_ri = ev_malloc (sizeof (fd_set)); FD_ZERO ((fd_set *)vec_ri);
- vec_ro = ev_malloc (sizeof (fd_set));
- vec_wi = ev_malloc (sizeof (fd_set)); FD_ZERO ((fd_set *)vec_wi);
- vec_wo = ev_malloc (sizeof (fd_set));
- #ifdef _WIN32
- vec_eo = ev_malloc (sizeof (fd_set));
- #endif
-#else
- vec_max = 0;
- vec_ri = 0;
- vec_ro = 0;
- vec_wi = 0;
- vec_wo = 0;
- #ifdef _WIN32
- vec_eo = 0;
- #endif
-#endif
-
- return EVBACKEND_SELECT;
-}
-
-void inline_size
-select_destroy (EV_P)
-{
- ev_free (vec_ri);
- ev_free (vec_ro);
- ev_free (vec_wi);
- ev_free (vec_wo);
- #ifdef _WIN32
- ev_free (vec_eo);
- #endif
-}
-
-
+++ /dev/null
-/*
- * loop member variable declarations
- *
- * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#define VARx(type,name) VAR(name, type name)
-
-VARx(ev_tstamp, now_floor) /* last time we refreshed rt_time */
-VARx(ev_tstamp, mn_now) /* monotonic clock "now" */
-VARx(ev_tstamp, rtmn_diff) /* difference realtime - monotonic time */
-
-VARx(ev_tstamp, io_blocktime)
-VARx(ev_tstamp, timeout_blocktime)
-
-VARx(int, backend)
-VARx(int, activecnt) /* total number of active events ("refcount") */
-VARx(EV_ATOMIC_T, loop_done) /* signal by ev_break */
-
-VARx(int, backend_fd)
-VARx(ev_tstamp, backend_fudge) /* assumed typical timer resolution */
-VAR (backend_modify, void (*backend_modify)(EV_P_ int fd, int oev, int nev))
-VAR (backend_poll , void (*backend_poll)(EV_P_ ev_tstamp timeout))
-
-VARx(ANFD *, anfds)
-VARx(int, anfdmax)
-
-VAR (pendings, ANPENDING *pendings [NUMPRI])
-VAR (pendingmax, int pendingmax [NUMPRI])
-VAR (pendingcnt, int pendingcnt [NUMPRI])
-VARx(ev_prepare, pending_w) /* dummy pending watcher */
-
-/* for reverse feeding of events */
-VARx(W *, rfeeds)
-VARx(int, rfeedmax)
-VARx(int, rfeedcnt)
-
-#if EV_USE_EVENTFD || EV_GENWRAP
-VARx(int, evfd)
-#endif
-VAR (evpipe, int evpipe [2])
-VARx(ev_io, pipe_w)
-
-#if !defined(_WIN32) || EV_GENWRAP
-VARx(pid_t, curpid)
-#endif
-
-VARx(char, postfork) /* true if we need to recreate kernel state after fork */
-
-#if EV_USE_SELECT || EV_GENWRAP
-VARx(void *, vec_ri)
-VARx(void *, vec_ro)
-VARx(void *, vec_wi)
-VARx(void *, vec_wo)
-#if defined(_WIN32) || EV_GENWRAP
-VARx(void *, vec_eo)
-#endif
-VARx(int, vec_max)
-#endif
-
-#if EV_USE_POLL || EV_GENWRAP
-VARx(struct pollfd *, polls)
-VARx(int, pollmax)
-VARx(int, pollcnt)
-VARx(int *, pollidxs) /* maps fds into structure indices */
-VARx(int, pollidxmax)
-#endif
-
-#if EV_USE_EPOLL || EV_GENWRAP
-VARx(struct epoll_event *, epoll_events)
-VARx(int, epoll_eventmax)
-VARx(int *, epoll_eperms)
-VARx(int, epoll_epermcnt)
-VARx(int, epoll_epermmax)
-#endif
-
-#if EV_USE_KQUEUE || EV_GENWRAP
-VARx(struct kevent *, kqueue_changes)
-VARx(int, kqueue_changemax)
-VARx(int, kqueue_changecnt)
-VARx(struct kevent *, kqueue_events)
-VARx(int, kqueue_eventmax)
-#endif
-
-#if EV_USE_PORT || EV_GENWRAP
-VARx(struct port_event *, port_events)
-VARx(int, port_eventmax)
-#endif
-
-#if EV_USE_IOCP || EV_GENWRAP
-VARx(HANDLE, iocp)
-#endif
-
-VARx(int *, fdchanges)
-VARx(int, fdchangemax)
-VARx(int, fdchangecnt)
-
-VARx(ANHE *, timers)
-VARx(int, timermax)
-VARx(int, timercnt)
-
-#if EV_PERIODIC_ENABLE || EV_GENWRAP
-VARx(ANHE *, periodics)
-VARx(int, periodicmax)
-VARx(int, periodiccnt)
-#endif
-
-#if EV_IDLE_ENABLE || EV_GENWRAP
-VAR (idles, ev_idle **idles [NUMPRI])
-VAR (idlemax, int idlemax [NUMPRI])
-VAR (idlecnt, int idlecnt [NUMPRI])
-#endif
-VARx(int, idleall) /* total number */
-
-VARx(struct ev_prepare **, prepares)
-VARx(int, preparemax)
-VARx(int, preparecnt)
-
-VARx(struct ev_check **, checks)
-VARx(int, checkmax)
-VARx(int, checkcnt)
-
-#if EV_FORK_ENABLE || EV_GENWRAP
-VARx(struct ev_fork **, forks)
-VARx(int, forkmax)
-VARx(int, forkcnt)
-#endif
-
-#if EV_CLEANUP_ENABLE || EV_GENWRAP
-VARx(struct ev_cleanup **, cleanups)
-VARx(int, cleanupmax)
-VARx(int, cleanupcnt)
-#endif
-
-#if EV_ASYNC_ENABLE || EV_GENWRAP
-VARx(EV_ATOMIC_T, async_pending)
-VARx(struct ev_async **, asyncs)
-VARx(int, asyncmax)
-VARx(int, asynccnt)
-#endif
-
-#if EV_USE_INOTIFY || EV_GENWRAP
-VARx(int, fs_fd)
-VARx(ev_io, fs_w)
-VARx(char, fs_2625) /* whether we are running in linux 2.6.25 or newer */
-VAR (fs_hash, ANFS fs_hash [EV_INOTIFY_HASHSIZE])
-#endif
-
-VARx(EV_ATOMIC_T, sig_pending)
-VARx(int, nosigmask)
-#if EV_USE_SIGNALFD || EV_GENWRAP
-VARx(int, sigfd)
-VARx(ev_io, sigfd_w)
-VARx(sigset_t, sigfd_set)
-#endif
-
-VARx(unsigned int, origflags) /* original loop flags */
-
-#if EV_FEATURE_API || EV_GENWRAP
-VARx(unsigned int, loop_count) /* total number of loop iterations/blocks */
-VARx(unsigned int, loop_depth) /* #ev_run enters - #ev_run leaves */
-
-VARx(void *, userdata)
-VAR (release_cb, void (*release_cb)(EV_P))
-VAR (acquire_cb, void (*acquire_cb)(EV_P))
-VAR (invoke_cb , void (*invoke_cb) (EV_P))
-#endif
-
-#undef VARx
-
+++ /dev/null
-/*
- * libev win32 compatibility cruft (_not_ a backend)
- *
- * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifdef _WIN32
-
-/* timeb.h is actually xsi legacy functionality */
-#include <sys/timeb.h>
-
-/* note: the comment below could not be substantiated, but what would I care */
-/* MSDN says this is required to handle SIGFPE */
-/* my wild guess would be that using something floating-pointy is required */
-/* for the crt to do something about it */
-volatile double SIGFPE_REQ = 0.0f;
-
-/* oh, the humanity! */
-static int
-ev_pipe (int filedes [2])
-{
- struct sockaddr_in addr = { 0 };
- int addr_size = sizeof (addr);
- struct sockaddr_in adr2;
- int adr2_size = sizeof (adr2);
- SOCKET listener;
- SOCKET sock [2] = { -1, -1 };
-
- if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
- return -1;
-
- addr.sin_family = AF_INET;
- addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- addr.sin_port = 0;
-
- if (bind (listener, (struct sockaddr *)&addr, addr_size))
- goto fail;
-
- if (getsockname (listener, (struct sockaddr *)&addr, &addr_size))
- goto fail;
-
- if (listen (listener, 1))
- goto fail;
-
- if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
- goto fail;
-
- if (connect (sock [0], (struct sockaddr *)&addr, addr_size))
- goto fail;
-
- if ((sock [1] = accept (listener, 0, 0)) < 0)
- goto fail;
-
- /* windows vista returns fantasy port numbers for sockets:
- * example for two interconnected tcp sockets:
- *
- * (Socket::unpack_sockaddr_in getsockname $sock0)[0] == 53364
- * (Socket::unpack_sockaddr_in getpeername $sock0)[0] == 53363
- * (Socket::unpack_sockaddr_in getsockname $sock1)[0] == 53363
- * (Socket::unpack_sockaddr_in getpeername $sock1)[0] == 53365
- *
- * wow! tridirectional sockets!
- *
- * this way of checking ports seems to work:
- */
- if (getpeername (sock [0], (struct sockaddr *)&addr, &addr_size))
- goto fail;
-
- if (getsockname (sock [1], (struct sockaddr *)&adr2, &adr2_size))
- goto fail;
-
- errno = WSAEINVAL;
- if (addr_size != adr2_size
- || addr.sin_addr.s_addr != adr2.sin_addr.s_addr /* just to be sure, I mean, it's windows */
- || addr.sin_port != adr2.sin_port)
- goto fail;
-
- closesocket (listener);
-
-#if EV_SELECT_IS_WINSOCKET
- filedes [0] = EV_WIN32_HANDLE_TO_FD (sock [0]);
- filedes [1] = EV_WIN32_HANDLE_TO_FD (sock [1]);
-#else
- /* when select isn't winsocket, we also expect socket, connect, accept etc.
- * to work on fds */
- filedes [0] = sock [0];
- filedes [1] = sock [1];
-#endif
-
- return 0;
-
-fail:
- closesocket (listener);
-
- if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
- if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
-
- return -1;
-}
-
-#undef pipe
-#define pipe(filedes) ev_pipe (filedes)
-
-#define EV_HAVE_EV_TIME 1
-ev_tstamp
-ev_time (void)
-{
- FILETIME ft;
- ULARGE_INTEGER ui;
-
- GetSystemTimeAsFileTime (&ft);
- ui.u.LowPart = ft.dwLowDateTime;
- ui.u.HighPart = ft.dwHighDateTime;
-
- /* msvc cannot convert ulonglong to double... yes, it is that sucky */
- return (LONGLONG)(ui.QuadPart - 116444736000000000) * 1e-7;
-}
-
-#endif
-
+++ /dev/null
-/* DO NOT EDIT, automatically generated by update_ev_wrap */
-#ifndef EV_WRAP_H
-#define EV_WRAP_H
-#define now_floor ((loop)->now_floor)
-#define mn_now ((loop)->mn_now)
-#define rtmn_diff ((loop)->rtmn_diff)
-#define io_blocktime ((loop)->io_blocktime)
-#define timeout_blocktime ((loop)->timeout_blocktime)
-#define backend ((loop)->backend)
-#define activecnt ((loop)->activecnt)
-#define loop_done ((loop)->loop_done)
-#define backend_fd ((loop)->backend_fd)
-#define backend_fudge ((loop)->backend_fudge)
-#define backend_modify ((loop)->backend_modify)
-#define backend_poll ((loop)->backend_poll)
-#define anfds ((loop)->anfds)
-#define anfdmax ((loop)->anfdmax)
-#define pendings ((loop)->pendings)
-#define pendingmax ((loop)->pendingmax)
-#define pendingcnt ((loop)->pendingcnt)
-#define pending_w ((loop)->pending_w)
-#define rfeeds ((loop)->rfeeds)
-#define rfeedmax ((loop)->rfeedmax)
-#define rfeedcnt ((loop)->rfeedcnt)
-#define evfd ((loop)->evfd)
-#define evpipe ((loop)->evpipe)
-#define pipe_w ((loop)->pipe_w)
-#define curpid ((loop)->curpid)
-#define postfork ((loop)->postfork)
-#define vec_ri ((loop)->vec_ri)
-#define vec_ro ((loop)->vec_ro)
-#define vec_wi ((loop)->vec_wi)
-#define vec_wo ((loop)->vec_wo)
-#define vec_eo ((loop)->vec_eo)
-#define vec_max ((loop)->vec_max)
-#define polls ((loop)->polls)
-#define pollmax ((loop)->pollmax)
-#define pollcnt ((loop)->pollcnt)
-#define pollidxs ((loop)->pollidxs)
-#define pollidxmax ((loop)->pollidxmax)
-#define epoll_events ((loop)->epoll_events)
-#define epoll_eventmax ((loop)->epoll_eventmax)
-#define epoll_eperms ((loop)->epoll_eperms)
-#define epoll_epermcnt ((loop)->epoll_epermcnt)
-#define epoll_epermmax ((loop)->epoll_epermmax)
-#define kqueue_changes ((loop)->kqueue_changes)
-#define kqueue_changemax ((loop)->kqueue_changemax)
-#define kqueue_changecnt ((loop)->kqueue_changecnt)
-#define kqueue_events ((loop)->kqueue_events)
-#define kqueue_eventmax ((loop)->kqueue_eventmax)
-#define port_events ((loop)->port_events)
-#define port_eventmax ((loop)->port_eventmax)
-#define iocp ((loop)->iocp)
-#define fdchanges ((loop)->fdchanges)
-#define fdchangemax ((loop)->fdchangemax)
-#define fdchangecnt ((loop)->fdchangecnt)
-#define timers ((loop)->timers)
-#define timermax ((loop)->timermax)
-#define timercnt ((loop)->timercnt)
-#define periodics ((loop)->periodics)
-#define periodicmax ((loop)->periodicmax)
-#define periodiccnt ((loop)->periodiccnt)
-#define idles ((loop)->idles)
-#define idlemax ((loop)->idlemax)
-#define idlecnt ((loop)->idlecnt)
-#define idleall ((loop)->idleall)
-#define prepares ((loop)->prepares)
-#define preparemax ((loop)->preparemax)
-#define preparecnt ((loop)->preparecnt)
-#define checks ((loop)->checks)
-#define checkmax ((loop)->checkmax)
-#define checkcnt ((loop)->checkcnt)
-#define forks ((loop)->forks)
-#define forkmax ((loop)->forkmax)
-#define forkcnt ((loop)->forkcnt)
-#define cleanups ((loop)->cleanups)
-#define cleanupmax ((loop)->cleanupmax)
-#define cleanupcnt ((loop)->cleanupcnt)
-#define async_pending ((loop)->async_pending)
-#define asyncs ((loop)->asyncs)
-#define asyncmax ((loop)->asyncmax)
-#define asynccnt ((loop)->asynccnt)
-#define fs_fd ((loop)->fs_fd)
-#define fs_w ((loop)->fs_w)
-#define fs_2625 ((loop)->fs_2625)
-#define fs_hash ((loop)->fs_hash)
-#define sig_pending ((loop)->sig_pending)
-#define nosigmask ((loop)->nosigmask)
-#define sigfd ((loop)->sigfd)
-#define sigfd_w ((loop)->sigfd_w)
-#define sigfd_set ((loop)->sigfd_set)
-#define origflags ((loop)->origflags)
-#define loop_count ((loop)->loop_count)
-#define loop_depth ((loop)->loop_depth)
-#define userdata ((loop)->userdata)
-#define release_cb ((loop)->release_cb)
-#define acquire_cb ((loop)->acquire_cb)
-#define invoke_cb ((loop)->invoke_cb)
-#else
-#undef EV_WRAP_H
-#undef now_floor
-#undef mn_now
-#undef rtmn_diff
-#undef io_blocktime
-#undef timeout_blocktime
-#undef backend
-#undef activecnt
-#undef loop_done
-#undef backend_fd
-#undef backend_fudge
-#undef backend_modify
-#undef backend_poll
-#undef anfds
-#undef anfdmax
-#undef pendings
-#undef pendingmax
-#undef pendingcnt
-#undef pending_w
-#undef rfeeds
-#undef rfeedmax
-#undef rfeedcnt
-#undef evfd
-#undef evpipe
-#undef pipe_w
-#undef curpid
-#undef postfork
-#undef vec_ri
-#undef vec_ro
-#undef vec_wi
-#undef vec_wo
-#undef vec_eo
-#undef vec_max
-#undef polls
-#undef pollmax
-#undef pollcnt
-#undef pollidxs
-#undef pollidxmax
-#undef epoll_events
-#undef epoll_eventmax
-#undef epoll_eperms
-#undef epoll_epermcnt
-#undef epoll_epermmax
-#undef kqueue_changes
-#undef kqueue_changemax
-#undef kqueue_changecnt
-#undef kqueue_events
-#undef kqueue_eventmax
-#undef port_events
-#undef port_eventmax
-#undef iocp
-#undef fdchanges
-#undef fdchangemax
-#undef fdchangecnt
-#undef timers
-#undef timermax
-#undef timercnt
-#undef periodics
-#undef periodicmax
-#undef periodiccnt
-#undef idles
-#undef idlemax
-#undef idlecnt
-#undef idleall
-#undef prepares
-#undef preparemax
-#undef preparecnt
-#undef checks
-#undef checkmax
-#undef checkcnt
-#undef forks
-#undef forkmax
-#undef forkcnt
-#undef cleanups
-#undef cleanupmax
-#undef cleanupcnt
-#undef async_pending
-#undef asyncs
-#undef asyncmax
-#undef asynccnt
-#undef fs_fd
-#undef fs_w
-#undef fs_2625
-#undef fs_hash
-#undef sig_pending
-#undef nosigmask
-#undef sigfd
-#undef sigfd_w
-#undef sigfd_set
-#undef origflags
-#undef loop_count
-#undef loop_depth
-#undef userdata
-#undef release_cb
-#undef acquire_cb
-#undef invoke_cb
-#endif
+++ /dev/null
-/*
- * libevent compatibility layer
- *
- * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#ifdef EV_EVENT_H
-# include EV_EVENT_H
-#else
-# include "event.h"
-#endif
-
-#if EV_MULTIPLICITY
-# define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base
-# define dLOOPbase struct ev_loop *loop = (struct ev_loop *)base
-#else
-# define dLOOPev
-# define dLOOPbase
-#endif
-
-/* never accessed, will always be cast from/to ev_loop */
-struct event_base
-{
- int dummy;
-};
-
-static struct event_base *ev_x_cur;
-
-static ev_tstamp
-ev_tv_get (struct timeval *tv)
-{
- if (tv)
- {
- ev_tstamp after = tv->tv_sec + tv->tv_usec * 1e-6;
- return after ? after : 1e-6;
- }
- else
- return -1.;
-}
-
-#define EVENT_STRINGIFY(s) # s
-#define EVENT_VERSION(a,b) EVENT_STRINGIFY (a) "." EVENT_STRINGIFY (b)
-
-const char *event_get_version (void)
-{
- /* returns ABI, not API or library, version */
- return EVENT_VERSION (EV_VERSION_MAJOR, EV_VERSION_MINOR);
-}
-
-const char *event_get_method (void)
-{
- return "libev";
-}
-
-void *event_init (void)
-{
-#if EV_MULTIPLICITY
- if (ev_x_cur)
- ev_x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO);
- else
- ev_x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO);
-#else
- assert (("libev: multiple event bases not supported when not compiled with EV_MULTIPLICITY", !ev_x_cur));
-
- ev_x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO);
-#endif
-
- return ev_x_cur;
-}
-
-void event_base_free (struct event_base *base)
-{
- dLOOPbase;
-
-#if EV_MULTIPLICITY
- if (!ev_is_default_loop (loop))
- ev_loop_destroy (loop);
-#endif
-}
-
-int event_dispatch (void)
-{
- return event_base_dispatch (ev_x_cur);
-}
-
-#ifdef EV_STANDALONE
-void event_set_log_callback (event_log_cb cb)
-{
- /* nop */
-}
-#endif
-
-int event_loop (int flags)
-{
- return event_base_loop (ev_x_cur, flags);
-}
-
-int event_loopexit (struct timeval *tv)
-{
- return event_base_loopexit (ev_x_cur, tv);
-}
-
-static void
-ev_x_cb (struct event *ev, int revents)
-{
- revents &= EV_READ | EV_WRITE | EV_TIMER | EV_SIGNAL;
-
- ev->ev_res = revents;
- ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg);
-}
-
-static void
-ev_x_cb_sig (EV_P_ struct ev_signal *w, int revents)
-{
- struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig));
-
- if (revents & EV_ERROR)
- event_del (ev);
-
- ev_x_cb (ev, revents);
-}
-
-static void
-ev_x_cb_io (EV_P_ struct ev_io *w, int revents)
-{
- struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io));
-
- if ((revents & EV_ERROR) || !(ev->ev_events & EV_PERSIST))
- event_del (ev);
-
- ev_x_cb (ev, revents);
-}
-
-static void
-ev_x_cb_to (EV_P_ struct ev_timer *w, int revents)
-{
- struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to));
-
- event_del (ev);
-
- ev_x_cb (ev, revents);
-}
-
-void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
-{
- if (events & EV_SIGNAL)
- ev_init (&ev->iosig.sig, ev_x_cb_sig);
- else
- ev_init (&ev->iosig.io, ev_x_cb_io);
-
- ev_init (&ev->to, ev_x_cb_to);
-
- ev->ev_base = ev_x_cur; /* not threadsafe, but it's how libevent works */
- ev->ev_fd = fd;
- ev->ev_events = events;
- ev->ev_pri = 0;
- ev->ev_callback = cb;
- ev->ev_arg = arg;
- ev->ev_res = 0;
- ev->ev_flags = EVLIST_INIT;
-}
-
-int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
-{
- return event_base_once (ev_x_cur, fd, events, cb, arg, tv);
-}
-
-int event_add (struct event *ev, struct timeval *tv)
-{
- dLOOPev;
-
- if (ev->ev_events & EV_SIGNAL)
- {
- if (!ev_is_active (&ev->iosig.sig))
- {
- ev_signal_set (&ev->iosig.sig, ev->ev_fd);
- ev_signal_start (EV_A_ &ev->iosig.sig);
-
- ev->ev_flags |= EVLIST_SIGNAL;
- }
- }
- else if (ev->ev_events & (EV_READ | EV_WRITE))
- {
- if (!ev_is_active (&ev->iosig.io))
- {
- ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE));
- ev_io_start (EV_A_ &ev->iosig.io);
-
- ev->ev_flags |= EVLIST_INSERTED;
- }
- }
-
- if (tv)
- {
- ev->to.repeat = ev_tv_get (tv);
- ev_timer_again (EV_A_ &ev->to);
- ev->ev_flags |= EVLIST_TIMEOUT;
- }
- else
- {
- ev_timer_stop (EV_A_ &ev->to);
- ev->ev_flags &= ~EVLIST_TIMEOUT;
- }
-
- ev->ev_flags |= EVLIST_ACTIVE;
-
- return 0;
-}
-
-int event_del (struct event *ev)
-{
- dLOOPev;
-
- if (ev->ev_events & EV_SIGNAL)
- ev_signal_stop (EV_A_ &ev->iosig.sig);
- else if (ev->ev_events & (EV_READ | EV_WRITE))
- ev_io_stop (EV_A_ &ev->iosig.io);
-
- if (ev_is_active (&ev->to))
- ev_timer_stop (EV_A_ &ev->to);
-
- ev->ev_flags = EVLIST_INIT;
-
- return 0;
-}
-
-void event_active (struct event *ev, int res, short ncalls)
-{
- dLOOPev;
-
- if (res & EV_TIMEOUT)
- ev_feed_event (EV_A_ &ev->to, res & EV_TIMEOUT);
-
- if (res & EV_SIGNAL)
- ev_feed_event (EV_A_ &ev->iosig.sig, res & EV_SIGNAL);
-
- if (res & (EV_READ | EV_WRITE))
- ev_feed_event (EV_A_ &ev->iosig.io, res & (EV_READ | EV_WRITE));
-}
-
-int event_pending (struct event *ev, short events, struct timeval *tv)
-{
- short revents = 0;
- dLOOPev;
-
- if (ev->ev_events & EV_SIGNAL)
- {
- /* sig */
- if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig))
- revents |= EV_SIGNAL;
- }
- else if (ev->ev_events & (EV_READ | EV_WRITE))
- {
- /* io */
- if (ev_is_active (&ev->iosig.io) || ev_is_pending (&ev->iosig.io))
- revents |= ev->ev_events & (EV_READ | EV_WRITE);
- }
-
- if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to))
- {
- revents |= EV_TIMEOUT;
-
- if (tv)
- {
- ev_tstamp at = ev_now (EV_A);
-
- tv->tv_sec = (long)at;
- tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6);
- }
- }
-
- return events & revents;
-}
-
-int event_priority_init (int npri)
-{
- return event_base_priority_init (ev_x_cur, npri);
-}
-
-int event_priority_set (struct event *ev, int pri)
-{
- ev->ev_pri = pri;
-
- return 0;
-}
-
-int event_base_set (struct event_base *base, struct event *ev)
-{
- ev->ev_base = base;
-
- return 0;
-}
-
-int event_base_loop (struct event_base *base, int flags)
-{
- dLOOPbase;
-
- ev_run (EV_A_ flags);
-
- return 0;
-}
-
-int event_base_dispatch (struct event_base *base)
-{
- return event_base_loop (base, 0);
-}
-
-static void
-ev_x_loopexit_cb (int revents, void *base)
-{
- dLOOPbase;
-
- ev_break (EV_A_ EVBREAK_ONE);
-}
-
-int event_base_loopexit (struct event_base *base, struct timeval *tv)
-{
- ev_tstamp after = ev_tv_get (tv);
- dLOOPbase;
-
- ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., ev_x_loopexit_cb, (void *)base);
-
- return 0;
-}
-
-struct ev_x_once
-{
- int fd;
- void (*cb)(int, short, void *);
- void *arg;
-};
-
-static void
-ev_x_once_cb (int revents, void *arg)
-{
- struct ev_x_once *once = (struct ev_x_once *)arg;
-
- once->cb (once->fd, (short)revents, once->arg);
- free (once);
-}
-
-int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
-{
- struct ev_x_once *once = (struct ev_x_once *)malloc (sizeof (struct ev_x_once));
- dLOOPbase;
-
- if (!once)
- return -1;
-
- once->fd = fd;
- once->cb = cb;
- once->arg = arg;
-
- ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), ev_tv_get (tv), ev_x_once_cb, (void *)once);
-
- return 0;
-}
-
-int event_base_priority_init (struct event_base *base, int npri)
-{
- /*dLOOPbase;*/
-
- return 0;
-}
-
+++ /dev/null
-/*
- * libevent compatibility header, only core events supported
- *
- * Copyright (c) 2007,2008,2010 Marc Alexander Lehmann <libev@schmorp.de>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
- * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
- * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
- * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Alternatively, the contents of this file may be used under the terms of
- * the GNU General Public License ("GPL") version 2 or any later version,
- * in which case the provisions of the GPL are applicable instead of
- * the above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the BSD license, indicate your decision
- * by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file under
- * either the BSD or the GPL.
- */
-
-#ifndef EVENT_H_
-#define EVENT_H_
-
-#ifdef EV_H
-# include EV_H
-#else
-# include "ev.h"
-#endif
-
-#ifndef EVLOOP_NONBLOCK
-# define EVLOOP_NONBLOCK EVRUN_NOWAIT
-#endif
-#ifndef EVLOOP_ONESHOT
-# define EVLOOP_ONESHOT EVRUN_ONCE
-#endif
-#ifndef EV_TIMEOUT
-# define EV_TIMEOUT EV_TIMER
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* we need sys/time.h for struct timeval only */
-#if !defined (WIN32) || defined (__MINGW32__)
-# include <time.h> /* mingw seems to need this, for whatever reason */
-# include <sys/time.h>
-#endif
-
-struct event_base;
-
-#define EVLIST_TIMEOUT 0x01
-#define EVLIST_INSERTED 0x02
-#define EVLIST_SIGNAL 0x04
-#define EVLIST_ACTIVE 0x08
-#define EVLIST_INTERNAL 0x10
-#define EVLIST_INIT 0x80
-
-struct event
-{
- /* libev watchers we map onto */
- union {
- struct ev_io io;
- struct ev_signal sig;
- } iosig;
- struct ev_timer to;
-
- /* compatibility slots */
- struct event_base *ev_base;
- void (*ev_callback)(int, short, void *arg);
- void *ev_arg;
- int ev_fd;
- int ev_pri;
- int ev_res;
- int ev_flags;
- short ev_events;
-};
-
-#define EV_READ EV_READ
-#define EV_WRITE EV_WRITE
-#define EV_PERSIST 0x10
-
-#define EVENT_SIGNAL(ev) ((int) (ev)->ev_fd)
-#define EVENT_FD(ev) ((int) (ev)->ev_fd)
-
-#define event_initialized(ev) ((ev)->ev_flags & EVLIST_INIT)
-
-#define evtimer_add(ev,tv) event_add (ev, tv)
-#define evtimer_set(ev,cb,data) event_set (ev, -1, 0, cb, data)
-#define evtimer_del(ev) event_del (ev)
-#define evtimer_pending(ev,tv) event_pending (ev, EV_TIMEOUT, tv)
-#define evtimer_initialized(ev) event_initialized (ev)
-
-#define timeout_add(ev,tv) evtimer_add (ev, tv)
-#define timeout_set(ev,cb,data) evtimer_set (ev, cb, data)
-#define timeout_del(ev) evtimer_del (ev)
-#define timeout_pending(ev,tv) evtimer_pending (ev, tv)
-#define timeout_initialized(ev) evtimer_initialized (ev)
-
-#define signal_add(ev,tv) event_add (ev, tv)
-#define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
-#define signal_del(ev) event_del (ev)
-#define signal_pending(ev,tv) event_pending (ev, EV_SIGNAL, tv)
-#define signal_initialized(ev) event_initialized (ev)
-
-const char *event_get_version (void);
-const char *event_get_method (void);
-
-void *event_init (void);
-void event_base_free (struct event_base *base);
-
-#define EVLOOP_ONCE EVLOOP_ONESHOT
-int event_loop (int);
-int event_loopexit (struct timeval *tv);
-int event_dispatch (void);
-
-#define _EVENT_LOG_DEBUG 0
-#define _EVENT_LOG_MSG 1
-#define _EVENT_LOG_WARN 2
-#define _EVENT_LOG_ERR 3
-typedef void (*event_log_cb)(int severity, const char *msg);
-void event_set_log_callback(event_log_cb cb);
-
-void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
-int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
-
-int event_add (struct event *ev, struct timeval *tv);
-int event_del (struct event *ev);
-void event_active (struct event *ev, int res, short ncalls); /* ncalls is being ignored */
-
-int event_pending (struct event *ev, short, struct timeval *tv);
-
-int event_priority_init (int npri);
-int event_priority_set (struct event *ev, int pri);
-
-int event_base_set (struct event_base *base, struct event *ev);
-int event_base_loop (struct event_base *base, int);
-int event_base_loopexit (struct event_base *base, struct timeval *tv);
-int event_base_dispatch (struct event_base *base);
-int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
-int event_base_priority_init (struct event_base *base, int fd);
-
-/* next line is different in the libevent+libev version */
-/*libevent-include*/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
+++ /dev/null
-#!/bin/sh
-#
-# install - install a program, script, or datafile
-#
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch. It can only install one file at a time, a restriction
-# shared with many OS's install programs.
-
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
-
-
-# put in absolute paths if you don't have them in your path; or use env. vars.
-
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-mkdirprog="${MKDIRPROG-mkdir}"
-
-transformbasename=""
-transform_arg=""
-instcmd="$mvprog"
-chmodcmd="$chmodprog 0755"
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-dir_arg=""
-
-while [ x"$1" != x ]; do
- case $1 in
- -c) instcmd=$cpprog
- shift
- continue;;
-
- -d) dir_arg=true
- shift
- continue;;
-
- -m) chmodcmd="$chmodprog $2"
- shift
- shift
- continue;;
-
- -o) chowncmd="$chownprog $2"
- shift
- shift
- continue;;
-
- -g) chgrpcmd="$chgrpprog $2"
- shift
- shift
- continue;;
-
- -s) stripcmd=$stripprog
- shift
- continue;;
-
- -t=*) transformarg=`echo $1 | sed 's/-t=//'`
- shift
- continue;;
-
- -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
- shift
- continue;;
-
- *) if [ x"$src" = x ]
- then
- src=$1
- else
- # this colon is to work around a 386BSD /bin/sh bug
- :
- dst=$1
- fi
- shift
- continue;;
- esac
-done
-
-if [ x"$src" = x ]
-then
- echo "$0: no input file specified" >&2
- exit 1
-else
- :
-fi
-
-if [ x"$dir_arg" != x ]; then
- dst=$src
- src=""
-
- if [ -d "$dst" ]; then
- instcmd=:
- chmodcmd=""
- else
- instcmd=$mkdirprog
- fi
-else
-
-# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
-# might cause directories to be created, which would be especially bad
-# if $src (and thus $dsttmp) contains '*'.
-
- if [ -f "$src" ] || [ -d "$src" ]
- then
- :
- else
- echo "$0: $src does not exist" >&2
- exit 1
- fi
-
- if [ x"$dst" = x ]
- then
- echo "$0: no destination specified" >&2
- exit 1
- else
- :
- fi
-
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
-
- if [ -d "$dst" ]
- then
- dst=$dst/`basename "$src"`
- else
- :
- fi
-fi
-
-## this sed command emulates the dirname command
-dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
-
-# Make sure that the destination directory exists.
-# this part is taken from Noah Friedman's mkinstalldirs script
-
-# Skip lots of stat calls in the usual case.
-if [ ! -d "$dstdir" ]; then
-defaultIFS='
- '
-IFS="${IFS-$defaultIFS}"
-
-oIFS=$IFS
-# Some sh's can't handle IFS=/ for some reason.
-IFS='%'
-set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
-IFS=$oIFS
-
-pathcomp=''
-
-while [ $# -ne 0 ] ; do
- pathcomp=$pathcomp$1
- shift
-
- if [ ! -d "$pathcomp" ] ;
- then
- $mkdirprog "$pathcomp"
- else
- :
- fi
-
- pathcomp=$pathcomp/
-done
-fi
-
-if [ x"$dir_arg" != x ]
-then
- $doit $instcmd "$dst" &&
-
- if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
- if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
- if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
- if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
-else
-
-# If we're going to rename the final executable, determine the name now.
-
- if [ x"$transformarg" = x ]
- then
- dstfile=`basename "$dst"`
- else
- dstfile=`basename "$dst" $transformbasename |
- sed $transformarg`$transformbasename
- fi
-
-# don't allow the sed command to completely eliminate the filename
-
- if [ x"$dstfile" = x ]
- then
- dstfile=`basename "$dst"`
- else
- :
- fi
-
-# Make a couple of temp file names in the proper directory.
-
- dsttmp=$dstdir/_inst.$$_
- rmtmp=$dstdir/_rm.$$_
-
-# Trap to clean up temp files at exit.
-
- trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
- trap '(exit $?); exit' 1 2 13 15
-
-# Move or copy the file name to the temp name
-
- $doit $instcmd "$src" "$dsttmp" &&
-
-# and set any options; do chmod last to preserve setuid bits
-
-# If any of these fail, we abort the whole thing. If we want to
-# ignore errors from any of these, just make sure not to ignore
-# errors from the above "$doit $instcmd $src $dsttmp" command.
-
- if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
- if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
- if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
- if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
-
-# Now remove or move aside any old file at destination location. We try this
-# two ways since rm can't unlink itself on some systems and the destination
-# file might be busy for other reasons. In this case, the final cleanup
-# might fail but the new file should still install successfully.
-
-{
- if [ -f "$dstdir/$dstfile" ]
- then
- $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
- $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
- {
- echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
- (exit 1); exit
- }
- else
- :
- fi
-} &&
-
-# Now rename the file to the real destination.
-
- $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
-
-fi &&
-
-# The final little trick to "correctly" pass the exit status to the exit trap.
-
-{
- (exit 0); exit
-}
+++ /dev/null
-dnl this file is part of libev, do not make local modifications
-dnl http://software.schmorp.de/pkg/libev
-
-dnl libev support
-AC_CHECK_HEADERS(sys/inotify.h sys/epoll.h sys/event.h port.h poll.h sys/select.h sys/eventfd.h sys/signalfd.h)
-
-AC_CHECK_FUNCS(inotify_init epoll_ctl kqueue port_create poll select eventfd signalfd)
-
-AC_CHECK_FUNCS(clock_gettime, [], [
- dnl on linux, try syscall wrapper first
- if test $(uname) = Linux; then
- AC_MSG_CHECKING(for clock_gettime syscall)
- AC_LINK_IFELSE([AC_LANG_PROGRAM(
- [#include <unistd.h>
- #include <sys/syscall.h>
- #include <time.h>],
- [struct timespec ts; int status = syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts)])],
- [ac_have_clock_syscall=1
- AC_DEFINE(HAVE_CLOCK_SYSCALL, 1, "use syscall interface for clock_gettime")
- AC_MSG_RESULT(yes)],
- [AC_MSG_RESULT(no)])
- fi
- if test -z "$LIBEV_M4_AVOID_LIBRT" && test -z "$ac_have_clock_syscall"; then
- AC_CHECK_LIB(rt, clock_gettime)
- unset ac_cv_func_clock_gettime
- AC_CHECK_FUNCS(clock_gettime)
- fi
-])
-
-AC_CHECK_FUNCS(nanosleep, [], [
- if test -z "$LIBEV_M4_AVOID_LIBRT"; then
- AC_CHECK_LIB(rt, nanosleep)
- unset ac_cv_func_nanosleep
- AC_CHECK_FUNCS(nanosleep)
- fi
-])
-
-AC_CHECK_LIB(m, ceil)
-
+++ /dev/null
-# Generated from ltmain.m4sh.
-
-# ltmain.sh (GNU libtool) 2.2.6b
-# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007 2008 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions. There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# GNU Libtool is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
-#
-# GNU Libtool is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html,
-# or obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
-# Usage: $progname [OPTION]... [MODE-ARG]...
-#
-# Provide generalized library-building support services.
-#
-# --config show all configuration variables
-# --debug enable verbose shell tracing
-# -n, --dry-run display commands without modifying any files
-# --features display basic configuration information and exit
-# --mode=MODE use operation mode MODE
-# --preserve-dup-deps don't remove duplicate dependency libraries
-# --quiet, --silent don't print informational messages
-# --tag=TAG use configuration variables from tag TAG
-# -v, --verbose print informational messages (default)
-# --version print version information
-# -h, --help print short or long help message
-#
-# MODE must be one of the following:
-#
-# clean remove files from the build directory
-# compile compile a source file into a libtool object
-# execute automatically set library path, then run a program
-# finish complete the installation of libtool libraries
-# install install libraries or executables
-# link create a library or an executable
-# uninstall remove libraries from an installed directory
-#
-# MODE-ARGS vary depending on the MODE.
-# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
-#
-# When reporting a bug, please describe a test case to reproduce it and
-# include the following information:
-#
-# host-triplet: $host
-# shell: $SHELL
-# compiler: $LTCC
-# compiler flags: $LTCFLAGS
-# linker: $LD (gnu? $with_gnu_ld)
-# $progname: (GNU libtool) 2.2.6b Debian-2.2.6b-2
-# automake: $automake_version
-# autoconf: $autoconf_version
-#
-# Report bugs to <bug-libtool@gnu.org>.
-
-PROGRAM=ltmain.sh
-PACKAGE=libtool
-VERSION="2.2.6b Debian-2.2.6b-2"
-TIMESTAMP=""
-package_revision=1.3017
-
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '${1+"$@"}'='"$@"'
- setopt NO_GLOB_SUBST
-else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# NLS nuisances: We save the old values to restore during execute mode.
-# Only set LANG and LC_ALL to C if already set.
-# These must not be set unconditionally because not all systems understand
-# e.g. LANG=C (notably SCO).
-lt_user_locale=
-lt_safe_locale=
-for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
- eval "if test \"\${$lt_var+set}\" = set; then
- save_$lt_var=\$$lt_var
- $lt_var=C
- export $lt_var
- lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
- lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
- fi"
-done
-
-$lt_unset CDPATH
-
-
-
-
-
-: ${CP="cp -f"}
-: ${ECHO="echo"}
-: ${EGREP="/bin/grep -E"}
-: ${FGREP="/bin/grep -F"}
-: ${GREP="/bin/grep"}
-: ${LN_S="ln -s"}
-: ${MAKE="make"}
-: ${MKDIR="mkdir"}
-: ${MV="mv -f"}
-: ${RM="rm -f"}
-: ${SED="/bin/sed"}
-: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-: ${Xsed="$SED -e 1s/^X//"}
-
-# Global variables:
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-
-exit_status=$EXIT_SUCCESS
-
-# Make sure IFS has a sensible default
-lt_nl='
-'
-IFS=" $lt_nl"
-
-dirname="s,/[^/]*$,,"
-basename="s,^.*/,,"
-
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "X${1}" | $Xsed -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
- func_basename_result=`$ECHO "X${1}" | $Xsed -e "$basename"`
-}
-
-# Generated shell functions inserted here.
-
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath="$0"
-
-# The name of this program:
-# In the unlikely event $progname began with a '-', it would play havoc with
-# func_echo (imagine progname=-n), so we prepend ./ in that case:
-func_dirname_and_basename "$progpath"
-progname=$func_basename_result
-case $progname in
- -*) progname=./$progname ;;
-esac
-
-# Make sure we have an absolute path for reexecution:
-case $progpath in
- [\\/]*|[A-Za-z]:\\*) ;;
- *[\\/]*)
- progdir=$func_dirname_result
- progdir=`cd "$progdir" && pwd`
- progpath="$progdir/$progname"
- ;;
- *)
- save_IFS="$IFS"
- IFS=:
- for progdir in $PATH; do
- IFS="$save_IFS"
- test -x "$progdir/$progname" && break
- done
- IFS="$save_IFS"
- test -n "$progdir" || progdir=`pwd`
- progpath="$progdir/$progname"
- ;;
-esac
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed="${SED}"' -e 1s/^X//'
-sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\(["`\\]\)/\\\1/g'
-
-# Re-`\' parameter expansions in output of double_quote_subst that were
-# `\'-ed in input to the same. If an odd number of `\' preceded a '$'
-# in input to double_quote_subst, that '$' was protected from expansion.
-# Since each input `\' is now two `\'s, look for any number of runs of
-# four `\'s followed by two `\'s and then a '$'. `\' that '$'.
-bs='\\'
-bs2='\\\\'
-bs4='\\\\\\\\'
-dollar='\$'
-sed_double_backslash="\
- s/$bs4/&\\
-/g
- s/^$bs2$dollar/$bs&/
- s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
- s/\n//g"
-
-# Standard options:
-opt_dry_run=false
-opt_help=false
-opt_quiet=false
-opt_verbose=false
-opt_warning=:
-
-# func_echo arg...
-# Echo program name prefixed message, along with the current mode
-# name if it has been set yet.
-func_echo ()
-{
- $ECHO "$progname${mode+: }$mode: $*"
-}
-
-# func_verbose arg...
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
- $opt_verbose && func_echo ${1+"$@"}
-
- # A bug in bash halts the script if the last line of a function
- # fails when set -e is in force, so we need another command to
- # work around that:
- :
-}
-
-# func_error arg...
-# Echo program name prefixed message to standard error.
-func_error ()
-{
- $ECHO "$progname${mode+: }$mode: "${1+"$@"} 1>&2
-}
-
-# func_warning arg...
-# Echo program name prefixed warning message to standard error.
-func_warning ()
-{
- $opt_warning && $ECHO "$progname${mode+: }$mode: warning: "${1+"$@"} 1>&2
-
- # bash bug again:
- :
-}
-
-# func_fatal_error arg...
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
- func_error ${1+"$@"}
- exit $EXIT_FAILURE
-}
-
-# func_fatal_help arg...
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
- func_error ${1+"$@"}
- func_fatal_error "$help"
-}
-help="Try \`$progname --help' for more information." ## default
-
-
-# func_grep expression filename
-# Check whether EXPRESSION matches any line of FILENAME, without output.
-func_grep ()
-{
- $GREP "$1" "$2" >/dev/null 2>&1
-}
-
-
-# func_mkdir_p directory-path
-# Make sure the entire path to DIRECTORY-PATH is available.
-func_mkdir_p ()
-{
- my_directory_path="$1"
- my_dir_list=
-
- if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
-
- # Protect directory names starting with `-'
- case $my_directory_path in
- -*) my_directory_path="./$my_directory_path" ;;
- esac
-
- # While some portion of DIR does not yet exist...
- while test ! -d "$my_directory_path"; do
- # ...make a list in topmost first order. Use a colon delimited
- # list incase some portion of path contains whitespace.
- my_dir_list="$my_directory_path:$my_dir_list"
-
- # If the last portion added has no slash in it, the list is done
- case $my_directory_path in */*) ;; *) break ;; esac
-
- # ...otherwise throw away the child directory and loop
- my_directory_path=`$ECHO "X$my_directory_path" | $Xsed -e "$dirname"`
- done
- my_dir_list=`$ECHO "X$my_dir_list" | $Xsed -e 's,:*$,,'`
-
- save_mkdir_p_IFS="$IFS"; IFS=':'
- for my_dir in $my_dir_list; do
- IFS="$save_mkdir_p_IFS"
- # mkdir can fail with a `File exist' error if two processes
- # try to create one of the directories concurrently. Don't
- # stop in that case!
- $MKDIR "$my_dir" 2>/dev/null || :
- done
- IFS="$save_mkdir_p_IFS"
-
- # Bail out if we (or some other process) failed to create a directory.
- test -d "$my_directory_path" || \
- func_fatal_error "Failed to create \`$1'"
- fi
-}
-
-
-# func_mktempdir [string]
-# Make a temporary directory that won't clash with other running
-# libtool processes, and avoids race conditions if possible. If
-# given, STRING is the basename for that directory.
-func_mktempdir ()
-{
- my_template="${TMPDIR-/tmp}/${1-$progname}"
-
- if test "$opt_dry_run" = ":"; then
- # Return a directory name, but don't create it in dry-run mode
- my_tmpdir="${my_template}-$$"
- else
-
- # If mktemp works, use that first and foremost
- my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
-
- if test ! -d "$my_tmpdir"; then
- # Failing that, at least try and use $RANDOM to avoid a race
- my_tmpdir="${my_template}-${RANDOM-0}$$"
-
- save_mktempdir_umask=`umask`
- umask 0077
- $MKDIR "$my_tmpdir"
- umask $save_mktempdir_umask
- fi
-
- # If we're not in dry-run mode, bomb out on failure
- test -d "$my_tmpdir" || \
- func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
- fi
-
- $ECHO "X$my_tmpdir" | $Xsed
-}
-
-
-# func_quote_for_eval arg
-# Aesthetically quote ARG to be evaled later.
-# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
-# is double-quoted, suitable for a subsequent eval, whereas
-# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
-# which are still active within double quotes backslashified.
-func_quote_for_eval ()
-{
- case $1 in
- *[\\\`\"\$]*)
- func_quote_for_eval_unquoted_result=`$ECHO "X$1" | $Xsed -e "$sed_quote_subst"` ;;
- *)
- func_quote_for_eval_unquoted_result="$1" ;;
- esac
-
- case $func_quote_for_eval_unquoted_result in
- # Double-quote args containing shell metacharacters to delay
- # word splitting, command substitution and and variable
- # expansion for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
- ;;
- *)
- func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
- esac
-}
-
-
-# func_quote_for_expand arg
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
- case $1 in
- *[\\\`\"]*)
- my_arg=`$ECHO "X$1" | $Xsed \
- -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
- *)
- my_arg="$1" ;;
- esac
-
- case $my_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting and command substitution for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- my_arg="\"$my_arg\""
- ;;
- esac
-
- func_quote_for_expand_result="$my_arg"
-}
-
-
-# func_show_eval cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
-
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- if ${opt_dry_run-false}; then :; else
- eval "$my_cmd"
- my_status=$?
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
-
-
-# func_show_eval_locale cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it. Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
-
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
-
- if ${opt_dry_run-false}; then :; else
- eval "$lt_user_locale
- $my_cmd"
- my_status=$?
- eval "$lt_safe_locale"
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
-
-
-
-
-
-# func_version
-# Echo version message to standard output and exit.
-func_version ()
-{
- $SED -n '/^# '$PROGRAM' (GNU /,/# warranty; / {
- s/^# //
- s/^# *$//
- s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
- p
- }' < "$progpath"
- exit $?
-}
-
-# func_usage
-# Echo short help message to standard output and exit.
-func_usage ()
-{
- $SED -n '/^# Usage:/,/# -h/ {
- s/^# //
- s/^# *$//
- s/\$progname/'$progname'/
- p
- }' < "$progpath"
- $ECHO
- $ECHO "run \`$progname --help | more' for full usage"
- exit $?
-}
-
-# func_help
-# Echo long help message to standard output and exit.
-func_help ()
-{
- $SED -n '/^# Usage:/,/# Report bugs to/ {
- s/^# //
- s/^# *$//
- s*\$progname*'$progname'*
- s*\$host*'"$host"'*
- s*\$SHELL*'"$SHELL"'*
- s*\$LTCC*'"$LTCC"'*
- s*\$LTCFLAGS*'"$LTCFLAGS"'*
- s*\$LD*'"$LD"'*
- s/\$with_gnu_ld/'"$with_gnu_ld"'/
- s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
- s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
- p
- }' < "$progpath"
- exit $?
-}
-
-# func_missing_arg argname
-# Echo program name prefixed message to standard error and set global
-# exit_cmd.
-func_missing_arg ()
-{
- func_error "missing argument for $1"
- exit_cmd=exit
-}
-
-exit_cmd=:
-
-
-
-
-
-# Check that we have a working $ECHO.
-if test "X$1" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
-elif test "X$1" = X--fallback-echo; then
- # Avoid inline document here, it may be left over
- :
-elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t'; then
- # Yippee, $ECHO works!
- :
-else
- # Restart under the correct shell, and then maybe $ECHO will work.
- exec $SHELL "$progpath" --no-reexec ${1+"$@"}
-fi
-
-if test "X$1" = X--fallback-echo; then
- # used as fallback echo
- shift
- cat <<EOF
-$*
-EOF
- exit $EXIT_SUCCESS
-fi
-
-magic="%%%MAGIC variable%%%"
-magic_exe="%%%MAGIC EXE variable%%%"
-
-# Global variables.
-# $mode is unset
-nonopt=
-execute_dlfiles=
-preserve_args=
-lo2o="s/\\.lo\$/.${objext}/"
-o2lo="s/\\.${objext}\$/.lo/"
-extracted_archives=
-extracted_serial=0
-
-opt_dry_run=false
-opt_duplicate_deps=false
-opt_silent=false
-opt_debug=:
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end. This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-# func_fatal_configuration arg...
-# Echo program name prefixed message to standard error, followed by
-# a configuration failure hint, and exit.
-func_fatal_configuration ()
-{
- func_error ${1+"$@"}
- func_error "See the $PACKAGE documentation for more information."
- func_fatal_error "Fatal configuration error."
-}
-
-
-# func_config
-# Display the configuration for all the tags in this script.
-func_config ()
-{
- re_begincf='^# ### BEGIN LIBTOOL'
- re_endcf='^# ### END LIBTOOL'
-
- # Default configuration.
- $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
-
- # Now print the configurations for the tags.
- for tagname in $taglist; do
- $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
- done
-
- exit $?
-}
-
-# func_features
-# Display the features supported by this script.
-func_features ()
-{
- $ECHO "host: $host"
- if test "$build_libtool_libs" = yes; then
- $ECHO "enable shared libraries"
- else
- $ECHO "disable shared libraries"
- fi
- if test "$build_old_libs" = yes; then
- $ECHO "enable static libraries"
- else
- $ECHO "disable static libraries"
- fi
-
- exit $?
-}
-
-# func_enable_tag tagname
-# Verify that TAGNAME is valid, and either flag an error and exit, or
-# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
-# variable here.
-func_enable_tag ()
-{
- # Global variable:
- tagname="$1"
-
- re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
- re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
- sed_extractcf="/$re_begincf/,/$re_endcf/p"
-
- # Validate tagname.
- case $tagname in
- *[!-_A-Za-z0-9,/]*)
- func_fatal_error "invalid tag name: $tagname"
- ;;
- esac
-
- # Don't test for the "default" C tag, as we know it's
- # there but not specially marked.
- case $tagname in
- CC) ;;
- *)
- if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
- taglist="$taglist $tagname"
-
- # Evaluate the configuration. Be careful to quote the path
- # and the sed script, to avoid splitting on whitespace, but
- # also don't use non-portable quotes within backquotes within
- # quotes we have to do it in 2 steps:
- extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
- eval "$extractedcf"
- else
- func_error "ignoring unknown tag $tagname"
- fi
- ;;
- esac
-}
-
-# Parse options once, thoroughly. This comes as soon as possible in
-# the script to make things like `libtool --version' happen quickly.
-{
-
- # Shorthand for --mode=foo, only valid as the first argument
- case $1 in
- clean|clea|cle|cl)
- shift; set dummy --mode clean ${1+"$@"}; shift
- ;;
- compile|compil|compi|comp|com|co|c)
- shift; set dummy --mode compile ${1+"$@"}; shift
- ;;
- execute|execut|execu|exec|exe|ex|e)
- shift; set dummy --mode execute ${1+"$@"}; shift
- ;;
- finish|finis|fini|fin|fi|f)
- shift; set dummy --mode finish ${1+"$@"}; shift
- ;;
- install|instal|insta|inst|ins|in|i)
- shift; set dummy --mode install ${1+"$@"}; shift
- ;;
- link|lin|li|l)
- shift; set dummy --mode link ${1+"$@"}; shift
- ;;
- uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
- shift; set dummy --mode uninstall ${1+"$@"}; shift
- ;;
- esac
-
- # Parse non-mode specific arguments:
- while test "$#" -gt 0; do
- opt="$1"
- shift
-
- case $opt in
- --config) func_config ;;
-
- --debug) preserve_args="$preserve_args $opt"
- func_echo "enabling shell trace mode"
- opt_debug='set -x'
- $opt_debug
- ;;
-
- -dlopen) test "$#" -eq 0 && func_missing_arg "$opt" && break
- execute_dlfiles="$execute_dlfiles $1"
- shift
- ;;
-
- --dry-run | -n) opt_dry_run=: ;;
- --features) func_features ;;
- --finish) mode="finish" ;;
-
- --mode) test "$#" -eq 0 && func_missing_arg "$opt" && break
- case $1 in
- # Valid mode arguments:
- clean) ;;
- compile) ;;
- execute) ;;
- finish) ;;
- install) ;;
- link) ;;
- relink) ;;
- uninstall) ;;
-
- # Catch anything else as an error
- *) func_error "invalid argument for $opt"
- exit_cmd=exit
- break
- ;;
- esac
-
- mode="$1"
- shift
- ;;
-
- --preserve-dup-deps)
- opt_duplicate_deps=: ;;
-
- --quiet|--silent) preserve_args="$preserve_args $opt"
- opt_silent=:
- ;;
-
- --verbose| -v) preserve_args="$preserve_args $opt"
- opt_silent=false
- ;;
-
- --tag) test "$#" -eq 0 && func_missing_arg "$opt" && break
- preserve_args="$preserve_args $opt $1"
- func_enable_tag "$1" # tagname is set here
- shift
- ;;
-
- # Separate optargs to long options:
- -dlopen=*|--mode=*|--tag=*)
- func_opt_split "$opt"
- set dummy "$func_opt_split_opt" "$func_opt_split_arg" ${1+"$@"}
- shift
- ;;
-
- -\?|-h) func_usage ;;
- --help) opt_help=: ;;
- --version) func_version ;;
-
- -*) func_fatal_help "unrecognized option \`$opt'" ;;
-
- *) nonopt="$opt"
- break
- ;;
- esac
- done
-
-
- case $host in
- *cygwin* | *mingw* | *pw32* | *cegcc*)
- # don't eliminate duplications in $postdeps and $predeps
- opt_duplicate_compiler_generated_deps=:
- ;;
- *)
- opt_duplicate_compiler_generated_deps=$opt_duplicate_deps
- ;;
- esac
-
- # Having warned about all mis-specified options, bail out if
- # anything was wrong.
- $exit_cmd $EXIT_FAILURE
-}
-
-# func_check_version_match
-# Ensure that we are using m4 macros, and libtool script from the same
-# release of libtool.
-func_check_version_match ()
-{
- if test "$package_revision" != "$macro_revision"; then
- if test "$VERSION" != "$macro_version"; then
- if test -z "$macro_version"; then
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from an older release.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
-$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
-$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
-$progname: and run autoconf again.
-_LT_EOF
- fi
- else
- cat >&2 <<_LT_EOF
-$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
-$progname: but the definition of this LT_INIT comes from revision $macro_revision.
-$progname: You should recreate aclocal.m4 with macros from revision $package_revision
-$progname: of $PACKAGE $VERSION and run autoconf again.
-_LT_EOF
- fi
-
- exit $EXIT_MISMATCH
- fi
-}
-
-
-## ----------- ##
-## Main. ##
-## ----------- ##
-
-$opt_help || {
- # Sanity checks first:
- func_check_version_match
-
- if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
- func_fatal_configuration "not configured to build any kind of library"
- fi
-
- test -z "$mode" && func_fatal_error "error: you must specify a MODE."
-
-
- # Darwin sucks
- eval std_shrext=\"$shrext_cmds\"
-
-
- # Only execute mode is allowed to have -dlopen flags.
- if test -n "$execute_dlfiles" && test "$mode" != execute; then
- func_error "unrecognized option \`-dlopen'"
- $ECHO "$help" 1>&2
- exit $EXIT_FAILURE
- fi
-
- # Change the help message to a mode-specific one.
- generic_help="$help"
- help="Try \`$progname --help --mode=$mode' for more information."
-}
-
-
-# func_lalib_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_lalib_p ()
-{
- test -f "$1" &&
- $SED -e 4q "$1" 2>/dev/null \
- | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
-# func_lalib_unsafe_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
-# This function implements the same check as func_lalib_p without
-# resorting to external programs. To this end, it redirects stdin and
-# closes it afterwards, without saving the original file descriptor.
-# As a safety measure, use it only where a negative result would be
-# fatal anyway. Works if `file' does not exist.
-func_lalib_unsafe_p ()
-{
- lalib_p=no
- if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
- for lalib_p_l in 1 2 3 4
- do
- read lalib_p_line
- case "$lalib_p_line" in
- \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
- esac
- done
- exec 0<&5 5<&-
- fi
- test "$lalib_p" = yes
-}
-
-# func_ltwrapper_script_p file
-# True iff FILE is a libtool wrapper script
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_script_p ()
-{
- func_lalib_p "$1"
-}
-
-# func_ltwrapper_executable_p file
-# True iff FILE is a libtool wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_executable_p ()
-{
- func_ltwrapper_exec_suffix=
- case $1 in
- *.exe) ;;
- *) func_ltwrapper_exec_suffix=.exe ;;
- esac
- $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
-}
-
-# func_ltwrapper_scriptname file
-# Assumes file is an ltwrapper_executable
-# uses $file to determine the appropriate filename for a
-# temporary ltwrapper_script.
-func_ltwrapper_scriptname ()
-{
- func_ltwrapper_scriptname_result=""
- if func_ltwrapper_executable_p "$1"; then
- func_dirname_and_basename "$1" "" "."
- func_stripname '' '.exe' "$func_basename_result"
- func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
- fi
-}
-
-# func_ltwrapper_p file
-# True iff FILE is a libtool wrapper script or wrapper executable
-# This function is only a basic sanity check; it will hardly flush out
-# determined imposters.
-func_ltwrapper_p ()
-{
- func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
-}
-
-
-# func_execute_cmds commands fail_cmd
-# Execute tilde-delimited COMMANDS.
-# If FAIL_CMD is given, eval that upon failure.
-# FAIL_CMD may read-access the current command in variable CMD!
-func_execute_cmds ()
-{
- $opt_debug
- save_ifs=$IFS; IFS='~'
- for cmd in $1; do
- IFS=$save_ifs
- eval cmd=\"$cmd\"
- func_show_eval "$cmd" "${2-:}"
- done
- IFS=$save_ifs
-}
-
-
-# func_source file
-# Source FILE, adding directory component if necessary.
-# Note that it is not necessary on cygwin/mingw to append a dot to
-# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
-# behavior happens only for exec(3), not for open(2)! Also, sourcing
-# `FILE.' does not work on cygwin managed mounts.
-func_source ()
-{
- $opt_debug
- case $1 in
- */* | *\\*) . "$1" ;;
- *) . "./$1" ;;
- esac
-}
-
-
-# func_infer_tag arg
-# Infer tagged configuration to use if any are available and
-# if one wasn't chosen via the "--tag" command line option.
-# Only attempt this if the compiler in the base compile
-# command doesn't match the default compiler.
-# arg is usually of the form 'gcc ...'
-func_infer_tag ()
-{
- $opt_debug
- if test -n "$available_tags" && test -z "$tagname"; then
- CC_quoted=
- for arg in $CC; do
- func_quote_for_eval "$arg"
- CC_quoted="$CC_quoted $func_quote_for_eval_result"
- done
- case $@ in
- # Blanks in the command may have been stripped by the calling shell,
- # but not from the CC environment variable when configure was run.
- " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*) ;;
- # Blanks at the start of $base_compile will cause this to fail
- # if we don't check for them as well.
- *)
- for z in $available_tags; do
- if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
- # Evaluate the configuration.
- eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
- CC_quoted=
- for arg in $CC; do
- # Double-quote args containing other shell metacharacters.
- func_quote_for_eval "$arg"
- CC_quoted="$CC_quoted $func_quote_for_eval_result"
- done
- case "$@ " in
- " $CC "* | "$CC "* | " `$ECHO $CC` "* | "`$ECHO $CC` "* | " $CC_quoted"* | "$CC_quoted "* | " `$ECHO $CC_quoted` "* | "`$ECHO $CC_quoted` "*)
- # The compiler in the base compile command matches
- # the one in the tagged configuration.
- # Assume this is the tagged configuration we want.
- tagname=$z
- break
- ;;
- esac
- fi
- done
- # If $tagname still isn't set, then no tagged configuration
- # was found and let the user know that the "--tag" command
- # line option must be used.
- if test -z "$tagname"; then
- func_echo "unable to infer tagged configuration"
- func_fatal_error "specify a tag with \`--tag'"
-# else
-# func_verbose "using $tagname tagged configuration"
- fi
- ;;
- esac
- fi
-}
-
-
-
-# func_write_libtool_object output_name pic_name nonpic_name
-# Create a libtool object file (analogous to a ".la" file),
-# but don't create it if we're doing a dry run.
-func_write_libtool_object ()
-{
- write_libobj=${1}
- if test "$build_libtool_libs" = yes; then
- write_lobj=\'${2}\'
- else
- write_lobj=none
- fi
-
- if test "$build_old_libs" = yes; then
- write_oldobj=\'${3}\'
- else
- write_oldobj=none
- fi
-
- $opt_dry_run || {
- cat >${write_libobj}T <<EOF
-# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# Name of the PIC object.
-pic_object=$write_lobj
-
-# Name of the non-PIC object
-non_pic_object=$write_oldobj
-
-EOF
- $MV "${write_libobj}T" "${write_libobj}"
- }
-}
-
-# func_mode_compile arg...
-func_mode_compile ()
-{
- $opt_debug
- # Get the compilation command and the source file.
- base_compile=
- srcfile="$nonopt" # always keep a non-empty value in "srcfile"
- suppress_opt=yes
- suppress_output=
- arg_mode=normal
- libobj=
- later=
- pie_flag=
-
- for arg
- do
- case $arg_mode in
- arg )
- # do not "continue". Instead, add this to base_compile
- lastarg="$arg"
- arg_mode=normal
- ;;
-
- target )
- libobj="$arg"
- arg_mode=normal
- continue
- ;;
-
- normal )
- # Accept any command-line options.
- case $arg in
- -o)
- test -n "$libobj" && \
- func_fatal_error "you cannot specify \`-o' more than once"
- arg_mode=target
- continue
- ;;
-
- -pie | -fpie | -fPIE)
- pie_flag="$pie_flag $arg"
- continue
- ;;
-
- -shared | -static | -prefer-pic | -prefer-non-pic)
- later="$later $arg"
- continue
- ;;
-
- -no-suppress)
- suppress_opt=no
- continue
- ;;
-
- -Xcompiler)
- arg_mode=arg # the next one goes into the "base_compile" arg list
- continue # The current "srcfile" will either be retained or
- ;; # replaced later. I would guess that would be a bug.
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- lastarg=
- save_ifs="$IFS"; IFS=','
- for arg in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$arg"
- lastarg="$lastarg $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$lastarg"
- lastarg=$func_stripname_result
-
- # Add the arguments to base_compile.
- base_compile="$base_compile $lastarg"
- continue
- ;;
-
- *)
- # Accept the current argument as the source file.
- # The previous "srcfile" becomes the current argument.
- #
- lastarg="$srcfile"
- srcfile="$arg"
- ;;
- esac # case $arg
- ;;
- esac # case $arg_mode
-
- # Aesthetically quote the previous argument.
- func_quote_for_eval "$lastarg"
- base_compile="$base_compile $func_quote_for_eval_result"
- done # for arg
-
- case $arg_mode in
- arg)
- func_fatal_error "you must specify an argument for -Xcompile"
- ;;
- target)
- func_fatal_error "you must specify a target with \`-o'"
- ;;
- *)
- # Get the name of the library object.
- test -z "$libobj" && {
- func_basename "$srcfile"
- libobj="$func_basename_result"
- }
- ;;
- esac
-
- # Recognize several different file suffixes.
- # If the user specifies -o file.o, it is replaced with file.lo
- case $libobj in
- *.[cCFSifmso] | \
- *.ada | *.adb | *.ads | *.asm | \
- *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
- *.[fF][09]? | *.for | *.java | *.obj | *.sx)
- func_xform "$libobj"
- libobj=$func_xform_result
- ;;
- esac
-
- case $libobj in
- *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
- *)
- func_fatal_error "cannot determine name of library object from \`$libobj'"
- ;;
- esac
-
- func_infer_tag $base_compile
-
- for arg in $later; do
- case $arg in
- -shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
- build_old_libs=no
- continue
- ;;
-
- -static)
- build_libtool_libs=no
- build_old_libs=yes
- continue
- ;;
-
- -prefer-pic)
- pic_mode=yes
- continue
- ;;
-
- -prefer-non-pic)
- pic_mode=no
- continue
- ;;
- esac
- done
-
- func_quote_for_eval "$libobj"
- test "X$libobj" != "X$func_quote_for_eval_result" \
- && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
- && func_warning "libobj name \`$libobj' may not contain shell special characters."
- func_dirname_and_basename "$obj" "/" ""
- objname="$func_basename_result"
- xdir="$func_dirname_result"
- lobj=${xdir}$objdir/$objname
-
- test -z "$base_compile" && \
- func_fatal_help "you must specify a compilation command"
-
- # Delete any leftover library objects.
- if test "$build_old_libs" = yes; then
- removelist="$obj $lobj $libobj ${libobj}T"
- else
- removelist="$lobj $libobj ${libobj}T"
- fi
-
- # On Cygwin there's no "real" PIC flag so we must build both object types
- case $host_os in
- cygwin* | mingw* | pw32* | os2* | cegcc*)
- pic_mode=default
- ;;
- esac
- if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
- # non-PIC code in shared libraries is not supported
- pic_mode=default
- fi
-
- # Calculate the filename of the output object if compiler does
- # not support -o with -c
- if test "$compiler_c_o" = no; then
- output_obj=`$ECHO "X$srcfile" | $Xsed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.${objext}
- lockfile="$output_obj.lock"
- else
- output_obj=
- need_locks=no
- lockfile=
- fi
-
- # Lock this critical section if it is needed
- # We use this script file to make the link, it avoids creating a new file
- if test "$need_locks" = yes; then
- until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
- func_echo "Waiting for $lockfile to be removed"
- sleep 2
- done
- elif test "$need_locks" = warn; then
- if test -f "$lockfile"; then
- $ECHO "\
-*** ERROR, $lockfile exists and contains:
-`cat $lockfile 2>/dev/null`
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
- removelist="$removelist $output_obj"
- $ECHO "$srcfile" > "$lockfile"
- fi
-
- $opt_dry_run || $RM $removelist
- removelist="$removelist $lockfile"
- trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
-
- if test -n "$fix_srcfile_path"; then
- eval srcfile=\"$fix_srcfile_path\"
- fi
- func_quote_for_eval "$srcfile"
- qsrcfile=$func_quote_for_eval_result
-
- # Only build a PIC object if we are building libtool libraries.
- if test "$build_libtool_libs" = yes; then
- # Without this assignment, base_compile gets emptied.
- fbsd_hideous_sh_bug=$base_compile
-
- if test "$pic_mode" != no; then
- command="$base_compile $qsrcfile $pic_flag"
- else
- # Don't build PIC code
- command="$base_compile $qsrcfile"
- fi
-
- func_mkdir_p "$xdir$objdir"
-
- if test -z "$output_obj"; then
- # Place PIC objects in $objdir
- command="$command -o $lobj"
- fi
-
- func_show_eval_locale "$command" \
- 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
-
- if test "$need_locks" = warn &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed, then go on to compile the next one
- if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
- func_show_eval '$MV "$output_obj" "$lobj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
-
- # Allow error messages only from the first compilation.
- if test "$suppress_opt" = yes; then
- suppress_output=' >/dev/null 2>&1'
- fi
- fi
-
- # Only build a position-dependent object if we build old libraries.
- if test "$build_old_libs" = yes; then
- if test "$pic_mode" != yes; then
- # Don't build PIC code
- command="$base_compile $qsrcfile$pie_flag"
- else
- command="$base_compile $qsrcfile $pic_flag"
- fi
- if test "$compiler_c_o" = yes; then
- command="$command -o $obj"
- fi
-
- # Suppress compiler output if we already did a PIC compilation.
- command="$command$suppress_output"
- func_show_eval_locale "$command" \
- '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
-
- if test "$need_locks" = warn &&
- test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
- $ECHO "\
-*** ERROR, $lockfile contains:
-`cat $lockfile 2>/dev/null`
-
-but it should contain:
-$srcfile
-
-This indicates that another process is trying to use the same
-temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
-repeat this compilation, it may succeed, by chance, but you had better
-avoid parallel builds (make -j) in this platform, or get a better
-compiler."
-
- $opt_dry_run || $RM $removelist
- exit $EXIT_FAILURE
- fi
-
- # Just move the object if needed
- if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
- func_show_eval '$MV "$output_obj" "$obj"' \
- 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
- fi
- fi
-
- $opt_dry_run || {
- func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
-
- # Unlock the critical section if it was locked
- if test "$need_locks" != no; then
- removelist=$lockfile
- $RM "$lockfile"
- fi
- }
-
- exit $EXIT_SUCCESS
-}
-
-$opt_help || {
-test "$mode" = compile && func_mode_compile ${1+"$@"}
-}
-
-func_mode_help ()
-{
- # We need to display help for each of the modes.
- case $mode in
- "")
- # Generic help is extracted from the usage comments
- # at the start of this file.
- func_help
- ;;
-
- clean)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
-
-Remove files from the build directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, object or program, all the files associated
-with it are deleted. Otherwise, only FILE itself is deleted using RM."
- ;;
-
- compile)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
-
-Compile a source file into a libtool library object.
-
-This mode accepts the following additional options:
-
- -o OUTPUT-FILE set the output file name to OUTPUT-FILE
- -no-suppress do not suppress compiler output for multiple passes
- -prefer-pic try to building PIC objects only
- -prefer-non-pic try to building non-PIC objects only
- -shared do not build a \`.o' file suitable for static linking
- -static only build a \`.o' file suitable for static linking
-
-COMPILE-COMMAND is a command to be used in creating a \`standard' object file
-from the given SOURCEFILE.
-
-The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix \`.c' with the
-library object suffix, \`.lo'."
- ;;
-
- execute)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
-
-Automatically set library path, then run a program.
-
-This mode accepts the following additional options:
-
- -dlopen FILE add the directory containing FILE to the library path
-
-This mode sets the library path environment variable according to \`-dlopen'
-flags.
-
-If any of the ARGS are libtool executable wrappers, then they are translated
-into their corresponding uninstalled binary, and any of their required library
-directories are added to the library path.
-
-Then, COMMAND is executed, with ARGS as arguments."
- ;;
-
- finish)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
-
-Complete the installation of libtool libraries.
-
-Each LIBDIR is a directory that contains libtool libraries.
-
-The commands that this mode executes may require superuser privileges. Use
-the \`--dry-run' option if you just want to see what would be executed."
- ;;
-
- install)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
-
-Install executables or libraries.
-
-INSTALL-COMMAND is the installation command. The first component should be
-either the \`install' or \`cp' program.
-
-The following components of INSTALL-COMMAND are treated specially:
-
- -inst-prefix PREFIX-DIR Use PREFIX-DIR as a staging area for installation
-
-The rest of the components are interpreted as arguments to that command (only
-BSD-compatible install options are recognized)."
- ;;
-
- link)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
-
-Link object files or libraries together to form another library, or to
-create an executable program.
-
-LINK-COMMAND is a command using the C compiler that you would use to create
-a program from several object files.
-
-The following components of LINK-COMMAND are treated specially:
-
- -all-static do not do any dynamic linking at all
- -avoid-version do not add a version suffix if possible
- -dlopen FILE \`-dlpreopen' FILE if it cannot be dlopened at runtime
- -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
- -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
- -export-symbols SYMFILE
- try to export only the symbols listed in SYMFILE
- -export-symbols-regex REGEX
- try to export only the symbols matching REGEX
- -LLIBDIR search LIBDIR for required installed libraries
- -lNAME OUTPUT-FILE requires the installed library libNAME
- -module build a library that can dlopened
- -no-fast-install disable the fast-install mode
- -no-install link a not-installable executable
- -no-undefined declare that a library does not refer to external symbols
- -o OUTPUT-FILE create OUTPUT-FILE from the specified objects
- -objectlist FILE Use a list of object files found in FILE to specify objects
- -precious-files-regex REGEX
- don't remove output files matching REGEX
- -release RELEASE specify package release information
- -rpath LIBDIR the created library will eventually be installed in LIBDIR
- -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries
- -shared only do dynamic linking of libtool libraries
- -shrext SUFFIX override the standard shared library file extension
- -static do not do any dynamic linking of uninstalled libtool libraries
- -static-libtool-libs
- do not do any dynamic linking of libtool libraries
- -version-info CURRENT[:REVISION[:AGE]]
- specify library version info [each variable defaults to 0]
- -weak LIBNAME declare that the target provides the LIBNAME interface
-
-All other options (arguments beginning with \`-') are ignored.
-
-Every other argument is treated as a filename. Files ending in \`.la' are
-treated as uninstalled libtool libraries, other files are standard or library
-object files.
-
-If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
-only library objects (\`.lo' files) may be specified, and \`-rpath' is
-required, except when creating a convenience library.
-
-If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
-using \`ar' and \`ranlib', or on Windows using \`lib'.
-
-If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
-is created, otherwise an executable program is created."
- ;;
-
- uninstall)
- $ECHO \
-"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
-
-Remove libraries from an installation directory.
-
-RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
-to RM.
-
-If FILE is a libtool library, all the files associated with it are deleted.
-Otherwise, only FILE itself is deleted using RM."
- ;;
-
- *)
- func_fatal_help "invalid operation mode \`$mode'"
- ;;
- esac
-
- $ECHO
- $ECHO "Try \`$progname --help' for more information about other modes."
-
- exit $?
-}
-
- # Now that we've collected a possible --mode arg, show help if necessary
- $opt_help && func_mode_help
-
-
-# func_mode_execute arg...
-func_mode_execute ()
-{
- $opt_debug
- # The first argument is the command name.
- cmd="$nonopt"
- test -z "$cmd" && \
- func_fatal_help "you must specify a COMMAND"
-
- # Handle -dlopen flags immediately.
- for file in $execute_dlfiles; do
- test -f "$file" \
- || func_fatal_help "\`$file' is not a file"
-
- dir=
- case $file in
- *.la)
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$lib' is not a valid libtool archive"
-
- # Read the libtool library.
- dlname=
- library_names=
- func_source "$file"
-
- # Skip this library if it cannot be dlopened.
- if test -z "$dlname"; then
- # Warn if it was a shared library.
- test -n "$library_names" && \
- func_warning "\`$file' was not linked with \`-export-dynamic'"
- continue
- fi
-
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
-
- if test -f "$dir/$objdir/$dlname"; then
- dir="$dir/$objdir"
- else
- if test ! -f "$dir/$dlname"; then
- func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
- fi
- fi
- ;;
-
- *.lo)
- # Just add the directory containing the .lo file.
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
- ;;
-
- *)
- func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
- continue
- ;;
- esac
-
- # Get the absolute pathname.
- absdir=`cd "$dir" && pwd`
- test -n "$absdir" && dir="$absdir"
-
- # Now add the directory to shlibpath_var.
- if eval "test -z \"\$$shlibpath_var\""; then
- eval "$shlibpath_var=\"\$dir\""
- else
- eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
- fi
- done
-
- # This variable tells wrapper scripts just to set shlibpath_var
- # rather than running their programs.
- libtool_execute_magic="$magic"
-
- # Check if any of the arguments is a wrapper script.
- args=
- for file
- do
- case $file in
- -*) ;;
- *)
- # Do a test to see if this is really a libtool program.
- if func_ltwrapper_script_p "$file"; then
- func_source "$file"
- # Transform arg to wrapped name.
- file="$progdir/$program"
- elif func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- func_source "$func_ltwrapper_scriptname_result"
- # Transform arg to wrapped name.
- file="$progdir/$program"
- fi
- ;;
- esac
- # Quote arguments (to preserve shell metacharacters).
- func_quote_for_eval "$file"
- args="$args $func_quote_for_eval_result"
- done
-
- if test "X$opt_dry_run" = Xfalse; then
- if test -n "$shlibpath_var"; then
- # Export the shlibpath_var.
- eval "export $shlibpath_var"
- fi
-
- # Restore saved environment variables
- for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
- do
- eval "if test \"\${save_$lt_var+set}\" = set; then
- $lt_var=\$save_$lt_var; export $lt_var
- else
- $lt_unset $lt_var
- fi"
- done
-
- # Now prepare to actually exec the command.
- exec_cmd="\$cmd$args"
- else
- # Display what would be done.
- if test -n "$shlibpath_var"; then
- eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
- $ECHO "export $shlibpath_var"
- fi
- $ECHO "$cmd$args"
- exit $EXIT_SUCCESS
- fi
-}
-
-test "$mode" = execute && func_mode_execute ${1+"$@"}
-
-
-# func_mode_finish arg...
-func_mode_finish ()
-{
- $opt_debug
- libdirs="$nonopt"
- admincmds=
-
- if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
- for dir
- do
- libdirs="$libdirs $dir"
- done
-
- for libdir in $libdirs; do
- if test -n "$finish_cmds"; then
- # Do each command in the finish commands.
- func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
-'"$cmd"'"'
- fi
- if test -n "$finish_eval"; then
- # Do the single finish_eval.
- eval cmds=\"$finish_eval\"
- $opt_dry_run || eval "$cmds" || admincmds="$admincmds
- $cmds"
- fi
- done
- fi
-
- # Exit here if they wanted silent mode.
- $opt_silent && exit $EXIT_SUCCESS
-
- $ECHO "X----------------------------------------------------------------------" | $Xsed
- $ECHO "Libraries have been installed in:"
- for libdir in $libdirs; do
- $ECHO " $libdir"
- done
- $ECHO
- $ECHO "If you ever happen to want to link against installed libraries"
- $ECHO "in a given directory, LIBDIR, you must either use libtool, and"
- $ECHO "specify the full pathname of the library, or use the \`-LLIBDIR'"
- $ECHO "flag during linking and do at least one of the following:"
- if test -n "$shlibpath_var"; then
- $ECHO " - add LIBDIR to the \`$shlibpath_var' environment variable"
- $ECHO " during execution"
- fi
- if test -n "$runpath_var"; then
- $ECHO " - add LIBDIR to the \`$runpath_var' environment variable"
- $ECHO " during linking"
- fi
- if test -n "$hardcode_libdir_flag_spec"; then
- libdir=LIBDIR
- eval flag=\"$hardcode_libdir_flag_spec\"
-
- $ECHO " - use the \`$flag' linker flag"
- fi
- if test -n "$admincmds"; then
- $ECHO " - have your system administrator run these commands:$admincmds"
- fi
- if test -f /etc/ld.so.conf; then
- $ECHO " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
- fi
- $ECHO
-
- $ECHO "See any operating system documentation about shared libraries for"
- case $host in
- solaris2.[6789]|solaris2.1[0-9])
- $ECHO "more information, such as the ld(1), crle(1) and ld.so(8) manual"
- $ECHO "pages."
- ;;
- *)
- $ECHO "more information, such as the ld(1) and ld.so(8) manual pages."
- ;;
- esac
- $ECHO "X----------------------------------------------------------------------" | $Xsed
- exit $EXIT_SUCCESS
-}
-
-test "$mode" = finish && func_mode_finish ${1+"$@"}
-
-
-# func_mode_install arg...
-func_mode_install ()
-{
- $opt_debug
- # There may be an optional sh(1) argument at the beginning of
- # install_prog (especially on Windows NT).
- if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
- # Allow the use of GNU shtool's install command.
- $ECHO "X$nonopt" | $GREP shtool >/dev/null; then
- # Aesthetically quote it.
- func_quote_for_eval "$nonopt"
- install_prog="$func_quote_for_eval_result "
- arg=$1
- shift
- else
- install_prog=
- arg=$nonopt
- fi
-
- # The real first argument should be the name of the installation program.
- # Aesthetically quote it.
- func_quote_for_eval "$arg"
- install_prog="$install_prog$func_quote_for_eval_result"
-
- # We need to accept at least all the BSD install flags.
- dest=
- files=
- opts=
- prev=
- install_type=
- isdir=no
- stripme=
- for arg
- do
- if test -n "$dest"; then
- files="$files $dest"
- dest=$arg
- continue
- fi
-
- case $arg in
- -d) isdir=yes ;;
- -f)
- case " $install_prog " in
- *[\\\ /]cp\ *) ;;
- *) prev=$arg ;;
- esac
- ;;
- -g | -m | -o)
- prev=$arg
- ;;
- -s)
- stripme=" -s"
- continue
- ;;
- -*)
- ;;
- *)
- # If the previous option needed an argument, then skip it.
- if test -n "$prev"; then
- prev=
- else
- dest=$arg
- continue
- fi
- ;;
- esac
-
- # Aesthetically quote the argument.
- func_quote_for_eval "$arg"
- install_prog="$install_prog $func_quote_for_eval_result"
- done
-
- test -z "$install_prog" && \
- func_fatal_help "you must specify an install program"
-
- test -n "$prev" && \
- func_fatal_help "the \`$prev' option requires an argument"
-
- if test -z "$files"; then
- if test -z "$dest"; then
- func_fatal_help "no file or destination specified"
- else
- func_fatal_help "you must specify a destination"
- fi
- fi
-
- # Strip any trailing slash from the destination.
- func_stripname '' '/' "$dest"
- dest=$func_stripname_result
-
- # Check to see that the destination is a directory.
- test -d "$dest" && isdir=yes
- if test "$isdir" = yes; then
- destdir="$dest"
- destname=
- else
- func_dirname_and_basename "$dest" "" "."
- destdir="$func_dirname_result"
- destname="$func_basename_result"
-
- # Not a directory, so check to see that there is only one file specified.
- set dummy $files; shift
- test "$#" -gt 1 && \
- func_fatal_help "\`$dest' is not a directory"
- fi
- case $destdir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- for file in $files; do
- case $file in
- *.lo) ;;
- *)
- func_fatal_help "\`$destdir' must be an absolute directory name"
- ;;
- esac
- done
- ;;
- esac
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic="$magic"
-
- staticlibs=
- future_libdirs=
- current_libdirs=
- for file in $files; do
-
- # Do each installation.
- case $file in
- *.$libext)
- # Do the static libraries later.
- staticlibs="$staticlibs $file"
- ;;
-
- *.la)
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$file' is not a valid libtool archive"
-
- library_names=
- old_library=
- relink_command=
- func_source "$file"
-
- # Add the libdir to current_libdirs if it is the destination.
- if test "X$destdir" = "X$libdir"; then
- case "$current_libdirs " in
- *" $libdir "*) ;;
- *) current_libdirs="$current_libdirs $libdir" ;;
- esac
- else
- # Note the libdir as a future libdir.
- case "$future_libdirs " in
- *" $libdir "*) ;;
- *) future_libdirs="$future_libdirs $libdir" ;;
- esac
- fi
-
- func_dirname "$file" "/" ""
- dir="$func_dirname_result"
- dir="$dir$objdir"
-
- if test -n "$relink_command"; then
- # Determine the prefix the user has applied to our future dir.
- inst_prefix_dir=`$ECHO "X$destdir" | $Xsed -e "s%$libdir\$%%"`
-
- # Don't allow the user to place us outside of our expected
- # location b/c this prevents finding dependent libraries that
- # are installed to the same prefix.
- # At present, this check doesn't affect windows .dll's that
- # are installed into $libdir/../bin (currently, that works fine)
- # but it's something to keep an eye on.
- test "$inst_prefix_dir" = "$destdir" && \
- func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
-
- if test -n "$inst_prefix_dir"; then
- # Stick the inst_prefix_dir data into the link command.
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
- else
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "s%@inst_prefix_dir@%%"`
- fi
-
- func_warning "relinking \`$file'"
- func_show_eval "$relink_command" \
- 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
- fi
-
- # See the names of the shared library.
- set dummy $library_names; shift
- if test -n "$1"; then
- realname="$1"
- shift
-
- srcname="$realname"
- test -n "$relink_command" && srcname="$realname"T
-
- # Install the shared library and build the symlinks.
- func_show_eval "$install_prog $dir/$srcname $destdir/$realname" \
- 'exit $?'
- tstripme="$stripme"
- case $host_os in
- cygwin* | mingw* | pw32* | cegcc*)
- case $realname in
- *.dll.a)
- tstripme=""
- ;;
- esac
- ;;
- esac
- if test -n "$tstripme" && test -n "$striplib"; then
- func_show_eval "$striplib $destdir/$realname" 'exit $?'
- fi
-
- if test "$#" -gt 0; then
- # Delete the old symlinks, and create new ones.
- # Try `ln -sf' first, because the `ln' binary might depend on
- # the symlink we replace! Solaris /bin/ln does not understand -f,
- # so we also need to try rm && ln -s.
- for linkname
- do
- test "$linkname" != "$realname" \
- && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
- done
- fi
-
- # Do each command in the postinstall commands.
- lib="$destdir/$realname"
- func_execute_cmds "$postinstall_cmds" 'exit $?'
- fi
-
- # Install the pseudo-library for information purposes.
- func_basename "$file"
- name="$func_basename_result"
- instname="$dir/$name"i
- func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
-
- # Maybe install the static library, too.
- test -n "$old_library" && staticlibs="$staticlibs $dir/$old_library"
- ;;
-
- *.lo)
- # Install (i.e. copy) a libtool object.
-
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile="$destdir/$destname"
- else
- func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
- fi
-
- # Deduce the name of the destination old-style object file.
- case $destfile in
- *.lo)
- func_lo2o "$destfile"
- staticdest=$func_lo2o_result
- ;;
- *.$objext)
- staticdest="$destfile"
- destfile=
- ;;
- *)
- func_fatal_help "cannot copy a libtool object to \`$destfile'"
- ;;
- esac
-
- # Install the libtool object if requested.
- test -n "$destfile" && \
- func_show_eval "$install_prog $file $destfile" 'exit $?'
-
- # Install the old object if enabled.
- if test "$build_old_libs" = yes; then
- # Deduce the name of the old-style object file.
- func_lo2o "$file"
- staticobj=$func_lo2o_result
- func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
- fi
- exit $EXIT_SUCCESS
- ;;
-
- *)
- # Figure out destination file name, if it wasn't already specified.
- if test -n "$destname"; then
- destfile="$destdir/$destname"
- else
- func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
- fi
-
- # If the file is missing, and there is a .exe on the end, strip it
- # because it is most likely a libtool script we actually want to
- # install
- stripped_ext=""
- case $file in
- *.exe)
- if test ! -f "$file"; then
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- stripped_ext=".exe"
- fi
- ;;
- esac
-
- # Do a test to see if this is really a libtool program.
- case $host in
- *cygwin* | *mingw*)
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- wrapper=$func_ltwrapper_scriptname_result
- else
- func_stripname '' '.exe' "$file"
- wrapper=$func_stripname_result
- fi
- ;;
- *)
- wrapper=$file
- ;;
- esac
- if func_ltwrapper_script_p "$wrapper"; then
- notinst_deplibs=
- relink_command=
-
- func_source "$wrapper"
-
- # Check the variables that should have been set.
- test -z "$generated_by_libtool_version" && \
- func_fatal_error "invalid libtool wrapper script \`$wrapper'"
-
- finalize=yes
- for lib in $notinst_deplibs; do
- # Check to see that each library is installed.
- libdir=
- if test -f "$lib"; then
- func_source "$lib"
- fi
- libfile="$libdir/"`$ECHO "X$lib" | $Xsed -e 's%^.*/%%g'` ### testsuite: skip nested quoting test
- if test -n "$libdir" && test ! -f "$libfile"; then
- func_warning "\`$lib' has not been installed in \`$libdir'"
- finalize=no
- fi
- done
-
- relink_command=
- func_source "$wrapper"
-
- outputname=
- if test "$fast_install" = no && test -n "$relink_command"; then
- $opt_dry_run || {
- if test "$finalize" = yes; then
- tmpdir=`func_mktempdir`
- func_basename "$file$stripped_ext"
- file="$func_basename_result"
- outputname="$tmpdir/$file"
- # Replace the output file specification.
- relink_command=`$ECHO "X$relink_command" | $Xsed -e 's%@OUTPUT@%'"$outputname"'%g'`
-
- $opt_silent || {
- func_quote_for_expand "$relink_command"
- eval "func_echo $func_quote_for_expand_result"
- }
- if eval "$relink_command"; then :
- else
- func_error "error: relink \`$file' with the above command before installing it"
- $opt_dry_run || ${RM}r "$tmpdir"
- continue
- fi
- file="$outputname"
- else
- func_warning "cannot relink \`$file'"
- fi
- }
- else
- # Install the binary that we compiled earlier.
- file=`$ECHO "X$file$stripped_ext" | $Xsed -e "s%\([^/]*\)$%$objdir/\1%"`
- fi
- fi
-
- # remove .exe since cygwin /usr/bin/install will append another
- # one anyway
- case $install_prog,$host in
- */usr/bin/install*,*cygwin*)
- case $file:$destfile in
- *.exe:*.exe)
- # this is ok
- ;;
- *.exe:*)
- destfile=$destfile.exe
- ;;
- *:*.exe)
- func_stripname '' '.exe' "$destfile"
- destfile=$func_stripname_result
- ;;
- esac
- ;;
- esac
- func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
- $opt_dry_run || if test -n "$outputname"; then
- ${RM}r "$tmpdir"
- fi
- ;;
- esac
- done
-
- for file in $staticlibs; do
- func_basename "$file"
- name="$func_basename_result"
-
- # Set up the ranlib parameters.
- oldlib="$destdir/$name"
-
- func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
-
- if test -n "$stripme" && test -n "$old_striplib"; then
- func_show_eval "$old_striplib $oldlib" 'exit $?'
- fi
-
- # Do each command in the postinstall commands.
- func_execute_cmds "$old_postinstall_cmds" 'exit $?'
- done
-
- test -n "$future_libdirs" && \
- func_warning "remember to run \`$progname --finish$future_libdirs'"
-
- if test -n "$current_libdirs"; then
- # Maybe just do a dry run.
- $opt_dry_run && current_libdirs=" -n$current_libdirs"
- exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
- else
- exit $EXIT_SUCCESS
- fi
-}
-
-test "$mode" = install && func_mode_install ${1+"$@"}
-
-
-# func_generate_dlsyms outputname originator pic_p
-# Extract symbols from dlprefiles and create ${outputname}S.o with
-# a dlpreopen symbol table.
-func_generate_dlsyms ()
-{
- $opt_debug
- my_outputname="$1"
- my_originator="$2"
- my_pic_p="${3-no}"
- my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
- my_dlsyms=
-
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- if test -n "$NM" && test -n "$global_symbol_pipe"; then
- my_dlsyms="${my_outputname}S.c"
- else
- func_error "not configured to extract global symbols from dlpreopened files"
- fi
- fi
-
- if test -n "$my_dlsyms"; then
- case $my_dlsyms in
- "") ;;
- *.c)
- # Discover the nlist of each of the dlfiles.
- nlist="$output_objdir/${my_outputname}.nm"
-
- func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
-
- # Parse the name list into a source file.
- func_verbose "creating $output_objdir/$my_dlsyms"
-
- $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
-
-#ifdef __cplusplus
-extern \"C\" {
-#endif
-
-/* External symbol declarations for the compiler. */\
-"
-
- if test "$dlself" = yes; then
- func_verbose "generating symbol list for \`$output'"
-
- $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
-
- # Add our own program objects to the symbol list.
- progfiles=`$ECHO "X$objs$old_deplibs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- for progfile in $progfiles; do
- func_verbose "extracting global C symbols from \`$progfile'"
- $opt_dry_run || eval "$NM $progfile | $global_symbol_pipe >> '$nlist'"
- done
-
- if test -n "$exclude_expsyms"; then
- $opt_dry_run || {
- eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- if test -n "$export_symbols_regex"; then
- $opt_dry_run || {
- eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- }
- fi
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- export_symbols="$output_objdir/$outputname.exp"
- $opt_dry_run || {
- $RM $export_symbols
- eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- else
- $opt_dry_run || {
- eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
- eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
- eval '$MV "$nlist"T "$nlist"'
- case $host in
- *cygwin | *mingw* | *cegcc* )
- eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
- eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
- ;;
- esac
- }
- fi
- fi
-
- for dlprefile in $dlprefiles; do
- func_verbose "extracting global C symbols from \`$dlprefile'"
- func_basename "$dlprefile"
- name="$func_basename_result"
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
- done
-
- $opt_dry_run || {
- # Make sure we have at least an empty file.
- test -f "$nlist" || : > "$nlist"
-
- if test -n "$exclude_expsyms"; then
- $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
- $MV "$nlist"T "$nlist"
- fi
-
- # Try sorting and uniquifying the output.
- if $GREP -v "^: " < "$nlist" |
- if sort -k 3 </dev/null >/dev/null 2>&1; then
- sort -k 3
- else
- sort +2
- fi |
- uniq > "$nlist"S; then
- :
- else
- $GREP -v "^: " < "$nlist" > "$nlist"S
- fi
-
- if test -f "$nlist"S; then
- eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
- else
- $ECHO '/* NONE */' >> "$output_objdir/$my_dlsyms"
- fi
-
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-
-/* The mapping between symbol names and symbols. */
-typedef struct {
- const char *name;
- void *address;
-} lt_dlsymlist;
-"
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-/* DATA imports from DLLs on WIN32 con't be const, because
- runtime relocations are performed -- see ld's documentation
- on pseudo-relocs. */"
- lt_dlsym_const= ;;
- *osf5*)
- echo >> "$output_objdir/$my_dlsyms" "\
-/* This system does not cope well with relocations in const data */"
- lt_dlsym_const= ;;
- *)
- lt_dlsym_const=const ;;
- esac
-
- $ECHO >> "$output_objdir/$my_dlsyms" "\
-extern $lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];
-$lt_dlsym_const lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[] =
-{\
- { \"$my_originator\", (void *) 0 },"
-
- case $need_lib_prefix in
- no)
- eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- *)
- eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
- ;;
- esac
- $ECHO >> "$output_objdir/$my_dlsyms" "\
- {0, (void *) 0}
-};
-
-/* This works around a problem in FreeBSD linker */
-#ifdef FREEBSD_WORKAROUND
-static const void *lt_preloaded_setup() {
- return lt_${my_prefix}_LTX_preloaded_symbols;
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif\
-"
- } # !$opt_dry_run
-
- pic_flag_for_symtable=
- case "$compile_command " in
- *" -static "*) ;;
- *)
- case $host in
- # compiling the symbol table file with pic_flag works around
- # a FreeBSD bug that causes programs to crash when -lm is
- # linked before any other PIC object. But we must not use
- # pic_flag when linking with -static. The problem exists in
- # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
- *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
- pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
- *-*-hpux*)
- pic_flag_for_symtable=" $pic_flag" ;;
- *)
- if test "X$my_pic_p" != Xno; then
- pic_flag_for_symtable=" $pic_flag"
- fi
- ;;
- esac
- ;;
- esac
- symtab_cflags=
- for arg in $LTCFLAGS; do
- case $arg in
- -pie | -fpie | -fPIE) ;;
- *) symtab_cflags="$symtab_cflags $arg" ;;
- esac
- done
-
- # Now compile the dynamic symbol file.
- func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
-
- # Clean up the generated files.
- func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
-
- # Transform the symbol file into the correct name.
- symfileobj="$output_objdir/${my_outputname}S.$objext"
- case $host in
- *cygwin* | *mingw* | *cegcc* )
- if test -f "$output_objdir/$my_outputname.def"; then
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
- else
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- fi
- ;;
- *)
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$symfileobj%"`
- ;;
- esac
- ;;
- *)
- func_fatal_error "unknown suffix for \`$my_dlsyms'"
- ;;
- esac
- else
- # We keep going just in case the user didn't refer to
- # lt_preloaded_symbols. The linker will fail if global_symbol_pipe
- # really was required.
-
- # Nullify the symbol file.
- compile_command=`$ECHO "X$compile_command" | $Xsed -e "s% @SYMFILE@%%"`
- finalize_command=`$ECHO "X$finalize_command" | $Xsed -e "s% @SYMFILE@%%"`
- fi
-}
-
-# func_win32_libid arg
-# return the library type of file 'arg'
-#
-# Need a lot of goo to handle *both* DLLs and import libs
-# Has to be a shell function in order to 'eat' the argument
-# that is supplied when $file_magic_command is called.
-func_win32_libid ()
-{
- $opt_debug
- win32_libid_type="unknown"
- win32_fileres=`file -L $1 2>/dev/null`
- case $win32_fileres in
- *ar\ archive\ import\ library*) # definitely import
- win32_libid_type="x86 archive import"
- ;;
- *ar\ archive*) # could be an import, or static
- if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
- $EGREP 'file format pe-i386(.*architecture: i386)?' >/dev/null ; then
- win32_nmres=`eval $NM -f posix -A $1 |
- $SED -n -e '
- 1,100{
- / I /{
- s,.*,import,
- p
- q
- }
- }'`
- case $win32_nmres in
- import*) win32_libid_type="x86 archive import";;
- *) win32_libid_type="x86 archive static";;
- esac
- fi
- ;;
- *DLL*)
- win32_libid_type="x86 DLL"
- ;;
- *executable*) # but shell scripts are "executable" too...
- case $win32_fileres in
- *MS\ Windows\ PE\ Intel*)
- win32_libid_type="x86 DLL"
- ;;
- esac
- ;;
- esac
- $ECHO "$win32_libid_type"
-}
-
-
-
-# func_extract_an_archive dir oldlib
-func_extract_an_archive ()
-{
- $opt_debug
- f_ex_an_ar_dir="$1"; shift
- f_ex_an_ar_oldlib="$1"
- func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" 'exit $?'
- if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
- fi
-}
-
-
-# func_extract_archives gentop oldlib ...
-func_extract_archives ()
-{
- $opt_debug
- my_gentop="$1"; shift
- my_oldlibs=${1+"$@"}
- my_oldobjs=""
- my_xlib=""
- my_xabs=""
- my_xdir=""
-
- for my_xlib in $my_oldlibs; do
- # Extract the objects.
- case $my_xlib in
- [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
- *) my_xabs=`pwd`"/$my_xlib" ;;
- esac
- func_basename "$my_xlib"
- my_xlib="$func_basename_result"
- my_xlib_u=$my_xlib
- while :; do
- case " $extracted_archives " in
- *" $my_xlib_u "*)
- func_arith $extracted_serial + 1
- extracted_serial=$func_arith_result
- my_xlib_u=lt$extracted_serial-$my_xlib ;;
- *) break ;;
- esac
- done
- extracted_archives="$extracted_archives $my_xlib_u"
- my_xdir="$my_gentop/$my_xlib_u"
-
- func_mkdir_p "$my_xdir"
-
- case $host in
- *-darwin*)
- func_verbose "Extracting $my_xabs"
- # Do not bother doing anything if just a dry run
- $opt_dry_run || {
- darwin_orig_dir=`pwd`
- cd $my_xdir || exit $?
- darwin_archive=$my_xabs
- darwin_curdir=`pwd`
- darwin_base_archive=`basename "$darwin_archive"`
- darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
- if test -n "$darwin_arches"; then
- darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
- darwin_arch=
- func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
- for darwin_arch in $darwin_arches ; do
- func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
- cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- func_extract_an_archive "`pwd`" "${darwin_base_archive}"
- cd "$darwin_curdir"
- $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
- done # $darwin_arches
- ## Okay now we've a bunch of thin objects, gotta fatten them up :)
- darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
- darwin_file=
- darwin_files=
- for darwin_file in $darwin_filelist; do
- darwin_files=`find unfat-$$ -name $darwin_file -print | $NL2SP`
- $LIPO -create -output "$darwin_file" $darwin_files
- done # $darwin_filelist
- $RM -rf unfat-$$
- cd "$darwin_orig_dir"
- else
- cd $darwin_orig_dir
- func_extract_an_archive "$my_xdir" "$my_xabs"
- fi # $darwin_arches
- } # !$opt_dry_run
- ;;
- *)
- func_extract_an_archive "$my_xdir" "$my_xabs"
- ;;
- esac
- my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | $NL2SP`
- done
-
- func_extract_archives_result="$my_oldobjs"
-}
-
-
-
-# func_emit_wrapper_part1 [arg=no]
-#
-# Emit the first part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part1 ()
-{
- func_emit_wrapper_part1_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_part1_arg1=$1
- fi
-
- $ECHO "\
-#! $SHELL
-
-# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# The $output program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed='${SED} -e 1s/^X//'
-sed_quote_subst='$sed_quote_subst'
-
-# Be Bourne compatible
-if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
- # is contrary to our usage. Disable this feature.
- alias -g '\${1+\"\$@\"}'='\"\$@\"'
- setopt NO_GLOB_SUBST
-else
- case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command=\"$relink_command\"
-
-# This environment variable determines our operation mode.
-if test \"\$libtool_install_magic\" = \"$magic\"; then
- # install mode needs the following variables:
- generated_by_libtool_version='$macro_version'
- notinst_deplibs='$notinst_deplibs'
-else
- # When we are sourced in execute mode, \$file and \$ECHO are already set.
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- ECHO=\"$qecho\"
- file=\"\$0\"
- # Make sure echo works.
- if test \"X\$1\" = X--no-reexec; then
- # Discard the --no-reexec flag, and continue.
- shift
- elif test \"X\`{ \$ECHO '\t'; } 2>/dev/null\`\" = 'X\t'; then
- # Yippee, \$ECHO works!
- :
- else
- # Restart under the correct shell, and then maybe \$ECHO will work.
- exec $SHELL \"\$0\" --no-reexec \${1+\"\$@\"}
- fi
- fi\
-"
- $ECHO "\
-
- # Find the directory that this script lives in.
- thisdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*$%%'\`
- test \"x\$thisdir\" = \"x\$file\" && thisdir=.
-
- # Follow symbolic links until we get to the real thisdir.
- file=\`ls -ld \"\$file\" | ${SED} -n 's/.*-> //p'\`
- while test -n \"\$file\"; do
- destdir=\`\$ECHO \"X\$file\" | \$Xsed -e 's%/[^/]*\$%%'\`
-
- # If there was a directory component, then change thisdir.
- if test \"x\$destdir\" != \"x\$file\"; then
- case \"\$destdir\" in
- [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
- *) thisdir=\"\$thisdir/\$destdir\" ;;
- esac
- fi
-
- file=\`\$ECHO \"X\$file\" | \$Xsed -e 's%^.*/%%'\`
- file=\`ls -ld \"\$thisdir/\$file\" | ${SED} -n 's/.*-> //p'\`
- done
-"
-}
-# end: func_emit_wrapper_part1
-
-# func_emit_wrapper_part2 [arg=no]
-#
-# Emit the second part of a libtool wrapper script on stdout.
-# For more information, see the description associated with
-# func_emit_wrapper(), below.
-func_emit_wrapper_part2 ()
-{
- func_emit_wrapper_part2_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_part2_arg1=$1
- fi
-
- $ECHO "\
-
- # Usually 'no', except on cygwin/mingw when embedded into
- # the cwrapper.
- WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_part2_arg1
- if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
- # special case for '.'
- if test \"\$thisdir\" = \".\"; then
- thisdir=\`pwd\`
- fi
- # remove .libs from thisdir
- case \"\$thisdir\" in
- *[\\\\/]$objdir ) thisdir=\`\$ECHO \"X\$thisdir\" | \$Xsed -e 's%[\\\\/][^\\\\/]*$%%'\` ;;
- $objdir ) thisdir=. ;;
- esac
- fi
-
- # Try to get the absolute directory name.
- absdir=\`cd \"\$thisdir\" && pwd\`
- test -n \"\$absdir\" && thisdir=\"\$absdir\"
-"
-
- if test "$fast_install" = yes; then
- $ECHO "\
- program=lt-'$outputname'$exeext
- progdir=\"\$thisdir/$objdir\"
-
- if test ! -f \"\$progdir/\$program\" ||
- { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
- test \"X\$file\" != \"X\$progdir/\$program\"; }; then
-
- file=\"\$\$-\$program\"
-
- if test ! -d \"\$progdir\"; then
- $MKDIR \"\$progdir\"
- else
- $RM \"\$progdir/\$file\"
- fi"
-
- $ECHO "\
-
- # relink executable if necessary
- if test -n \"\$relink_command\"; then
- if relink_command_output=\`eval \$relink_command 2>&1\`; then :
- else
- $ECHO \"\$relink_command_output\" >&2
- $RM \"\$progdir/\$file\"
- exit 1
- fi
- fi
-
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
- { $RM \"\$progdir/\$program\";
- $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
- $RM \"\$progdir/\$file\"
- fi"
- else
- $ECHO "\
- program='$outputname'
- progdir=\"\$thisdir/$objdir\"
-"
- fi
-
- $ECHO "\
-
- if test -f \"\$progdir/\$program\"; then"
-
- # Export our shlibpath_var if we have one.
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- $ECHO "\
- # Add our own library path to $shlibpath_var
- $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
-
- # Some systems cannot cope with colon-terminated $shlibpath_var
- # The second colon is a workaround for a bug in BeOS R4 sed
- $shlibpath_var=\`\$ECHO \"X\$$shlibpath_var\" | \$Xsed -e 's/::*\$//'\`
-
- export $shlibpath_var
-"
- fi
-
- # fixup the dll searchpath if we need to.
- if test -n "$dllsearchpath"; then
- $ECHO "\
- # Add the dll search path components to the executable PATH
- PATH=$dllsearchpath:\$PATH
-"
- fi
-
- $ECHO "\
- if test \"\$libtool_execute_magic\" != \"$magic\"; then
- # Run the actual program with our arguments.
-"
- case $host in
- # Backslashes separate directories on plain windows
- *-*-mingw | *-*-os2* | *-cegcc*)
- $ECHO "\
- exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
-"
- ;;
-
- *)
- $ECHO "\
- exec \"\$progdir/\$program\" \${1+\"\$@\"}
-"
- ;;
- esac
- $ECHO "\
- \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
- exit 1
- fi
- else
- # The program doesn't exist.
- \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
- \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
- $ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
- exit 1
- fi
-fi\
-"
-}
-# end: func_emit_wrapper_part2
-
-
-# func_emit_wrapper [arg=no]
-#
-# Emit a libtool wrapper script on stdout.
-# Don't directly open a file because we may want to
-# incorporate the script contents within a cygwin/mingw
-# wrapper executable. Must ONLY be called from within
-# func_mode_link because it depends on a number of variables
-# set therein.
-#
-# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
-# variable will take. If 'yes', then the emitted script
-# will assume that the directory in which it is stored is
-# the $objdir directory. This is a cygwin/mingw-specific
-# behavior.
-func_emit_wrapper ()
-{
- func_emit_wrapper_arg1=no
- if test -n "$1" ; then
- func_emit_wrapper_arg1=$1
- fi
-
- # split this up so that func_emit_cwrapperexe_src
- # can call each part independently.
- func_emit_wrapper_part1 "${func_emit_wrapper_arg1}"
- func_emit_wrapper_part2 "${func_emit_wrapper_arg1}"
-}
-
-
-# func_to_host_path arg
-#
-# Convert paths to host format when used with build tools.
-# Intended for use with "native" mingw (where libtool itself
-# is running under the msys shell), or in the following cross-
-# build environments:
-# $build $host
-# mingw (msys) mingw [e.g. native]
-# cygwin mingw
-# *nix + wine mingw
-# where wine is equipped with the `winepath' executable.
-# In the native mingw case, the (msys) shell automatically
-# converts paths for any non-msys applications it launches,
-# but that facility isn't available from inside the cwrapper.
-# Similar accommodations are necessary for $host mingw and
-# $build cygwin. Calling this function does no harm for other
-# $host/$build combinations not listed above.
-#
-# ARG is the path (on $build) that should be converted to
-# the proper representation for $host. The result is stored
-# in $func_to_host_path_result.
-func_to_host_path ()
-{
- func_to_host_path_result="$1"
- if test -n "$1" ; then
- case $host in
- *mingw* )
- lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
- case $build in
- *mingw* ) # actually, msys
- # awkward: cmd appends spaces to result
- lt_sed_strip_trailing_spaces="s/[ ]*\$//"
- func_to_host_path_tmp1=`( cmd //c echo "$1" |\
- $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- *cygwin* )
- func_to_host_path_tmp1=`cygpath -w "$1"`
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- * )
- # Unfortunately, winepath does not exit with a non-zero
- # error code, so we are forced to check the contents of
- # stdout. On the other hand, if the command is not
- # found, the shell will set an exit code of 127 and print
- # *an error message* to stdout. So we must check for both
- # error code of zero AND non-empty stdout, which explains
- # the odd construction:
- func_to_host_path_tmp1=`winepath -w "$1" 2>/dev/null`
- if test "$?" -eq 0 && test -n "${func_to_host_path_tmp1}"; then
- func_to_host_path_result=`echo "$func_to_host_path_tmp1" |\
- $SED -e "$lt_sed_naive_backslashify"`
- else
- # Allow warning below.
- func_to_host_path_result=""
- fi
- ;;
- esac
- if test -z "$func_to_host_path_result" ; then
- func_error "Could not determine host path corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback:
- func_to_host_path_result="$1"
- fi
- ;;
- esac
- fi
-}
-# end: func_to_host_path
-
-# func_to_host_pathlist arg
-#
-# Convert pathlists to host format when used with build tools.
-# See func_to_host_path(), above. This function supports the
-# following $build/$host combinations (but does no harm for
-# combinations not listed here):
-# $build $host
-# mingw (msys) mingw [e.g. native]
-# cygwin mingw
-# *nix + wine mingw
-#
-# Path separators are also converted from $build format to
-# $host format. If ARG begins or ends with a path separator
-# character, it is preserved (but converted to $host format)
-# on output.
-#
-# ARG is a pathlist (on $build) that should be converted to
-# the proper representation on $host. The result is stored
-# in $func_to_host_pathlist_result.
-func_to_host_pathlist ()
-{
- func_to_host_pathlist_result="$1"
- if test -n "$1" ; then
- case $host in
- *mingw* )
- lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
- # Remove leading and trailing path separator characters from
- # ARG. msys behavior is inconsistent here, cygpath turns them
- # into '.;' and ';.', and winepath ignores them completely.
- func_to_host_pathlist_tmp2="$1"
- # Once set for this call, this variable should not be
- # reassigned. It is used in tha fallback case.
- func_to_host_pathlist_tmp1=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e 's|^:*||' -e 's|:*$||'`
- case $build in
- *mingw* ) # Actually, msys.
- # Awkward: cmd appends spaces to result.
- lt_sed_strip_trailing_spaces="s/[ ]*\$//"
- func_to_host_pathlist_tmp2=`( cmd //c echo "$func_to_host_pathlist_tmp1" |\
- $SED -e "$lt_sed_strip_trailing_spaces" ) 2>/dev/null || echo ""`
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- *cygwin* )
- func_to_host_pathlist_tmp2=`cygpath -w -p "$func_to_host_pathlist_tmp1"`
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp2" |\
- $SED -e "$lt_sed_naive_backslashify"`
- ;;
- * )
- # unfortunately, winepath doesn't convert pathlists
- func_to_host_pathlist_result=""
- func_to_host_pathlist_oldIFS=$IFS
- IFS=:
- for func_to_host_pathlist_f in $func_to_host_pathlist_tmp1 ; do
- IFS=$func_to_host_pathlist_oldIFS
- if test -n "$func_to_host_pathlist_f" ; then
- func_to_host_path "$func_to_host_pathlist_f"
- if test -n "$func_to_host_path_result" ; then
- if test -z "$func_to_host_pathlist_result" ; then
- func_to_host_pathlist_result="$func_to_host_path_result"
- else
- func_to_host_pathlist_result="$func_to_host_pathlist_result;$func_to_host_path_result"
- fi
- fi
- fi
- IFS=:
- done
- IFS=$func_to_host_pathlist_oldIFS
- ;;
- esac
- if test -z "$func_to_host_pathlist_result" ; then
- func_error "Could not determine the host path(s) corresponding to"
- func_error " '$1'"
- func_error "Continuing, but uninstalled executables may not work."
- # Fallback. This may break if $1 contains DOS-style drive
- # specifications. The fix is not to complicate the expression
- # below, but for the user to provide a working wine installation
- # with winepath so that path translation in the cross-to-mingw
- # case works properly.
- lt_replace_pathsep_nix_to_dos="s|:|;|g"
- func_to_host_pathlist_result=`echo "$func_to_host_pathlist_tmp1" |\
- $SED -e "$lt_replace_pathsep_nix_to_dos"`
- fi
- # Now, add the leading and trailing path separators back
- case "$1" in
- :* ) func_to_host_pathlist_result=";$func_to_host_pathlist_result"
- ;;
- esac
- case "$1" in
- *: ) func_to_host_pathlist_result="$func_to_host_pathlist_result;"
- ;;
- esac
- ;;
- esac
- fi
-}
-# end: func_to_host_pathlist
-
-# func_emit_cwrapperexe_src
-# emit the source code for a wrapper executable on stdout
-# Must ONLY be called from within func_mode_link because
-# it depends on a number of variable set therein.
-func_emit_cwrapperexe_src ()
-{
- cat <<EOF
-
-/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
- Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-
- The $output program cannot be directly executed until all the libtool
- libraries that it depends on are installed.
-
- This wrapper executable should never be moved out of the build directory.
- If it is, it will not operate correctly.
-
- Currently, it simply execs the wrapper *script* "$SHELL $output",
- but could eventually absorb all of the scripts functionality and
- exec $objdir/$outputname directly.
-*/
-EOF
- cat <<"EOF"
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-# include <direct.h>
-# include <process.h>
-# include <io.h>
-# define setmode _setmode
-#else
-# include <unistd.h>
-# include <stdint.h>
-# ifdef __CYGWIN__
-# include <io.h>
-# define HAVE_SETENV
-# ifdef __STRICT_ANSI__
-char *realpath (const char *, char *);
-int putenv (char *);
-int setenv (const char *, const char *, int);
-# endif
-# endif
-#endif
-#include <malloc.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#if defined(PATH_MAX)
-# define LT_PATHMAX PATH_MAX
-#elif defined(MAXPATHLEN)
-# define LT_PATHMAX MAXPATHLEN
-#else
-# define LT_PATHMAX 1024
-#endif
-
-#ifndef S_IXOTH
-# define S_IXOTH 0
-#endif
-#ifndef S_IXGRP
-# define S_IXGRP 0
-#endif
-
-#ifdef _MSC_VER
-# define S_IXUSR _S_IEXEC
-# define stat _stat
-# ifndef _INTPTR_T_DEFINED
-# define intptr_t int
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR
-# define DIR_SEPARATOR '/'
-# define PATH_SEPARATOR ':'
-#endif
-
-#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
- defined (__OS2__)
-# define HAVE_DOS_BASED_FILE_SYSTEM
-# define FOPEN_WB "wb"
-# ifndef DIR_SEPARATOR_2
-# define DIR_SEPARATOR_2 '\\'
-# endif
-# ifndef PATH_SEPARATOR_2
-# define PATH_SEPARATOR_2 ';'
-# endif
-#endif
-
-#ifndef DIR_SEPARATOR_2
-# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
-#else /* DIR_SEPARATOR_2 */
-# define IS_DIR_SEPARATOR(ch) \
- (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
-#endif /* DIR_SEPARATOR_2 */
-
-#ifndef PATH_SEPARATOR_2
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
-#else /* PATH_SEPARATOR_2 */
-# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
-#endif /* PATH_SEPARATOR_2 */
-
-#ifdef __CYGWIN__
-# define FOPEN_WB "wb"
-#endif
-
-#ifndef FOPEN_WB
-# define FOPEN_WB "w"
-#endif
-#ifndef _O_BINARY
-# define _O_BINARY 0
-#endif
-
-#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
-#define XFREE(stale) do { \
- if (stale) { free ((void *) stale); stale = 0; } \
-} while (0)
-
-#undef LTWRAPPER_DEBUGPRINTF
-#if defined DEBUGWRAPPER
-# define LTWRAPPER_DEBUGPRINTF(args) ltwrapper_debugprintf args
-static void
-ltwrapper_debugprintf (const char *fmt, ...)
-{
- va_list args;
- va_start (args, fmt);
- (void) vfprintf (stderr, fmt, args);
- va_end (args);
-}
-#else
-# define LTWRAPPER_DEBUGPRINTF(args)
-#endif
-
-const char *program_name = NULL;
-
-void *xmalloc (size_t num);
-char *xstrdup (const char *string);
-const char *base_name (const char *name);
-char *find_executable (const char *wrapper);
-char *chase_symlinks (const char *pathspec);
-int make_executable (const char *path);
-int check_executable (const char *path);
-char *strendzap (char *str, const char *pat);
-void lt_fatal (const char *message, ...);
-void lt_setenv (const char *name, const char *value);
-char *lt_extend_str (const char *orig_value, const char *add, int to_end);
-void lt_opt_process_env_set (const char *arg);
-void lt_opt_process_env_prepend (const char *arg);
-void lt_opt_process_env_append (const char *arg);
-int lt_split_name_value (const char *arg, char** name, char** value);
-void lt_update_exe_path (const char *name, const char *value);
-void lt_update_lib_path (const char *name, const char *value);
-
-static const char *script_text_part1 =
-EOF
-
- func_emit_wrapper_part1 yes |
- $SED -e 's/\([\\"]\)/\\\1/g' \
- -e 's/^/ "/' -e 's/$/\\n"/'
- echo ";"
- cat <<EOF
-
-static const char *script_text_part2 =
-EOF
- func_emit_wrapper_part2 yes |
- $SED -e 's/\([\\"]\)/\\\1/g' \
- -e 's/^/ "/' -e 's/$/\\n"/'
- echo ";"
-
- cat <<EOF
-const char * MAGIC_EXE = "$magic_exe";
-const char * LIB_PATH_VARNAME = "$shlibpath_var";
-EOF
-
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
- func_to_host_pathlist "$temp_rpath"
- cat <<EOF
-const char * LIB_PATH_VALUE = "$func_to_host_pathlist_result";
-EOF
- else
- cat <<"EOF"
-const char * LIB_PATH_VALUE = "";
-EOF
- fi
-
- if test -n "$dllsearchpath"; then
- func_to_host_pathlist "$dllsearchpath:"
- cat <<EOF
-const char * EXE_PATH_VARNAME = "PATH";
-const char * EXE_PATH_VALUE = "$func_to_host_pathlist_result";
-EOF
- else
- cat <<"EOF"
-const char * EXE_PATH_VARNAME = "";
-const char * EXE_PATH_VALUE = "";
-EOF
- fi
-
- if test "$fast_install" = yes; then
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
-EOF
- else
- cat <<EOF
-const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
-EOF
- fi
-
-
- cat <<"EOF"
-
-#define LTWRAPPER_OPTION_PREFIX "--lt-"
-#define LTWRAPPER_OPTION_PREFIX_LENGTH 5
-
-static const size_t opt_prefix_len = LTWRAPPER_OPTION_PREFIX_LENGTH;
-static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
-
-static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script";
-
-static const size_t env_set_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 7;
-static const char *env_set_opt = LTWRAPPER_OPTION_PREFIX "env-set";
- /* argument is putenv-style "foo=bar", value of foo is set to bar */
-
-static const size_t env_prepend_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 11;
-static const char *env_prepend_opt = LTWRAPPER_OPTION_PREFIX "env-prepend";
- /* argument is putenv-style "foo=bar", new value of foo is bar${foo} */
-
-static const size_t env_append_opt_len = LTWRAPPER_OPTION_PREFIX_LENGTH + 10;
-static const char *env_append_opt = LTWRAPPER_OPTION_PREFIX "env-append";
- /* argument is putenv-style "foo=bar", new value of foo is ${foo}bar */
-
-int
-main (int argc, char *argv[])
-{
- char **newargz;
- int newargc;
- char *tmp_pathspec;
- char *actual_cwrapper_path;
- char *actual_cwrapper_name;
- char *target_name;
- char *lt_argv_zero;
- intptr_t rval = 127;
-
- int i;
-
- program_name = (char *) xstrdup (base_name (argv[0]));
- LTWRAPPER_DEBUGPRINTF (("(main) argv[0] : %s\n", argv[0]));
- LTWRAPPER_DEBUGPRINTF (("(main) program_name : %s\n", program_name));
-
- /* very simple arg parsing; don't want to rely on getopt */
- for (i = 1; i < argc; i++)
- {
- if (strcmp (argv[i], dumpscript_opt) == 0)
- {
-EOF
- case "$host" in
- *mingw* | *cygwin* )
- # make stdout use "unix" line endings
- echo " setmode(1,_O_BINARY);"
- ;;
- esac
-
- cat <<"EOF"
- printf ("%s", script_text_part1);
- printf ("%s", script_text_part2);
- return 0;
- }
- }
-
- newargz = XMALLOC (char *, argc + 1);
- tmp_pathspec = find_executable (argv[0]);
- if (tmp_pathspec == NULL)
- lt_fatal ("Couldn't find %s", argv[0]);
- LTWRAPPER_DEBUGPRINTF (("(main) found exe (before symlink chase) at : %s\n",
- tmp_pathspec));
-
- actual_cwrapper_path = chase_symlinks (tmp_pathspec);
- LTWRAPPER_DEBUGPRINTF (("(main) found exe (after symlink chase) at : %s\n",
- actual_cwrapper_path));
- XFREE (tmp_pathspec);
-
- actual_cwrapper_name = xstrdup( base_name (actual_cwrapper_path));
- strendzap (actual_cwrapper_path, actual_cwrapper_name);
-
- /* wrapper name transforms */
- strendzap (actual_cwrapper_name, ".exe");
- tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
- XFREE (actual_cwrapper_name);
- actual_cwrapper_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- /* target_name transforms -- use actual target program name; might have lt- prefix */
- target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
- strendzap (target_name, ".exe");
- tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
- XFREE (target_name);
- target_name = tmp_pathspec;
- tmp_pathspec = 0;
-
- LTWRAPPER_DEBUGPRINTF (("(main) libtool target name: %s\n",
- target_name));
-EOF
-
- cat <<EOF
- newargz[0] =
- XMALLOC (char, (strlen (actual_cwrapper_path) +
- strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
- strcpy (newargz[0], actual_cwrapper_path);
- strcat (newargz[0], "$objdir");
- strcat (newargz[0], "/");
-EOF
-
- cat <<"EOF"
- /* stop here, and copy so we don't have to do this twice */
- tmp_pathspec = xstrdup (newargz[0]);
-
- /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
- strcat (newargz[0], actual_cwrapper_name);
-
- /* DO want the lt- prefix here if it exists, so use target_name */
- lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
- XFREE (tmp_pathspec);
- tmp_pathspec = NULL;
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- {
- char* p;
- while ((p = strchr (newargz[0], '\\')) != NULL)
- {
- *p = '/';
- }
- while ((p = strchr (lt_argv_zero, '\\')) != NULL)
- {
- *p = '/';
- }
- }
-EOF
- ;;
- esac
-
- cat <<"EOF"
- XFREE (target_name);
- XFREE (actual_cwrapper_path);
- XFREE (actual_cwrapper_name);
-
- lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
- lt_setenv ("DUALCASE", "1"); /* for MSK sh */
- lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
- lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
-
- newargc=0;
- for (i = 1; i < argc; i++)
- {
- if (strncmp (argv[i], env_set_opt, env_set_opt_len) == 0)
- {
- if (argv[i][env_set_opt_len] == '=')
- {
- const char *p = argv[i] + env_set_opt_len + 1;
- lt_opt_process_env_set (p);
- }
- else if (argv[i][env_set_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_set (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_set_opt);
- continue;
- }
- if (strncmp (argv[i], env_prepend_opt, env_prepend_opt_len) == 0)
- {
- if (argv[i][env_prepend_opt_len] == '=')
- {
- const char *p = argv[i] + env_prepend_opt_len + 1;
- lt_opt_process_env_prepend (p);
- }
- else if (argv[i][env_prepend_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_prepend (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_prepend_opt);
- continue;
- }
- if (strncmp (argv[i], env_append_opt, env_append_opt_len) == 0)
- {
- if (argv[i][env_append_opt_len] == '=')
- {
- const char *p = argv[i] + env_append_opt_len + 1;
- lt_opt_process_env_append (p);
- }
- else if (argv[i][env_append_opt_len] == '\0' && i + 1 < argc)
- {
- lt_opt_process_env_append (argv[++i]); /* don't copy */
- }
- else
- lt_fatal ("%s missing required argument", env_append_opt);
- continue;
- }
- if (strncmp (argv[i], ltwrapper_option_prefix, opt_prefix_len) == 0)
- {
- /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
- namespace, but it is not one of the ones we know about and
- have already dealt with, above (inluding dump-script), then
- report an error. Otherwise, targets might begin to believe
- they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
- namespace. The first time any user complains about this, we'll
- need to make LTWRAPPER_OPTION_PREFIX a configure-time option
- or a configure.ac-settable value.
- */
- lt_fatal ("Unrecognized option in %s namespace: '%s'",
- ltwrapper_option_prefix, argv[i]);
- }
- /* otherwise ... */
- newargz[++newargc] = xstrdup (argv[i]);
- }
- newargz[++newargc] = NULL;
-
- LTWRAPPER_DEBUGPRINTF (("(main) lt_argv_zero : %s\n", (lt_argv_zero ? lt_argv_zero : "<NULL>")));
- for (i = 0; i < newargc; i++)
- {
- LTWRAPPER_DEBUGPRINTF (("(main) newargz[%d] : %s\n", i, (newargz[i] ? newargz[i] : "<NULL>")));
- }
-
-EOF
-
- case $host_os in
- mingw*)
- cat <<"EOF"
- /* execv doesn't actually work on mingw as expected on unix */
- rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
- if (rval == -1)
- {
- /* failed to start process */
- LTWRAPPER_DEBUGPRINTF (("(main) failed to launch target \"%s\": errno = %d\n", lt_argv_zero, errno));
- return 127;
- }
- return rval;
-EOF
- ;;
- *)
- cat <<"EOF"
- execv (lt_argv_zero, newargz);
- return rval; /* =127, but avoids unused variable warning */
-EOF
- ;;
- esac
-
- cat <<"EOF"
-}
-
-void *
-xmalloc (size_t num)
-{
- void *p = (void *) malloc (num);
- if (!p)
- lt_fatal ("Memory exhausted");
-
- return p;
-}
-
-char *
-xstrdup (const char *string)
-{
- return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
- string) : NULL;
-}
-
-const char *
-base_name (const char *name)
-{
- const char *base;
-
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- /* Skip over the disk name in MSDOS pathnames. */
- if (isalpha ((unsigned char) name[0]) && name[1] == ':')
- name += 2;
-#endif
-
- for (base = name; *name; name++)
- if (IS_DIR_SEPARATOR (*name))
- base = name + 1;
- return base;
-}
-
-int
-check_executable (const char *path)
-{
- struct stat st;
-
- LTWRAPPER_DEBUGPRINTF (("(check_executable) : %s\n",
- path ? (*path ? path : "EMPTY!") : "NULL!"));
- if ((!path) || (!*path))
- return 0;
-
- if ((stat (path, &st) >= 0)
- && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
- return 1;
- else
- return 0;
-}
-
-int
-make_executable (const char *path)
-{
- int rval = 0;
- struct stat st;
-
- LTWRAPPER_DEBUGPRINTF (("(make_executable) : %s\n",
- path ? (*path ? path : "EMPTY!") : "NULL!"));
- if ((!path) || (!*path))
- return 0;
-
- if (stat (path, &st) >= 0)
- {
- rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
- }
- return rval;
-}
-
-/* Searches for the full path of the wrapper. Returns
- newly allocated full path name if found, NULL otherwise
- Does not chase symlinks, even on platforms that support them.
-*/
-char *
-find_executable (const char *wrapper)
-{
- int has_slash = 0;
- const char *p;
- const char *p_next;
- /* static buffer for getcwd */
- char tmp[LT_PATHMAX + 1];
- int tmp_len;
- char *concat_name;
-
- LTWRAPPER_DEBUGPRINTF (("(find_executable) : %s\n",
- wrapper ? (*wrapper ? wrapper : "EMPTY!") : "NULL!"));
-
- if ((wrapper == NULL) || (*wrapper == '\0'))
- return NULL;
-
- /* Absolute path? */
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- else
- {
-#endif
- if (IS_DIR_SEPARATOR (wrapper[0]))
- {
- concat_name = xstrdup (wrapper);
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
- }
-#endif
-
- for (p = wrapper; *p; p++)
- if (*p == '/')
- {
- has_slash = 1;
- break;
- }
- if (!has_slash)
- {
- /* no slashes; search PATH */
- const char *path = getenv ("PATH");
- if (path != NULL)
- {
- for (p = path; *p; p = p_next)
- {
- const char *q;
- size_t p_len;
- for (q = p; *q; q++)
- if (IS_PATH_SEPARATOR (*q))
- break;
- p_len = q - p;
- p_next = (*q == '\0' ? q : q + 1);
- if (p_len == 0)
- {
- /* empty path: current directory */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal ("getcwd failed");
- tmp_len = strlen (tmp);
- concat_name =
- XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
- }
- else
- {
- concat_name =
- XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, p, p_len);
- concat_name[p_len] = '/';
- strcpy (concat_name + p_len + 1, wrapper);
- }
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- }
- }
- /* not found in PATH; assume curdir */
- }
- /* Relative path | not found in path: prepend cwd */
- if (getcwd (tmp, LT_PATHMAX) == NULL)
- lt_fatal ("getcwd failed");
- tmp_len = strlen (tmp);
- concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
- memcpy (concat_name, tmp, tmp_len);
- concat_name[tmp_len] = '/';
- strcpy (concat_name + tmp_len + 1, wrapper);
-
- if (check_executable (concat_name))
- return concat_name;
- XFREE (concat_name);
- return NULL;
-}
-
-char *
-chase_symlinks (const char *pathspec)
-{
-#ifndef S_ISLNK
- return xstrdup (pathspec);
-#else
- char buf[LT_PATHMAX];
- struct stat s;
- char *tmp_pathspec = xstrdup (pathspec);
- char *p;
- int has_symlinks = 0;
- while (strlen (tmp_pathspec) && !has_symlinks)
- {
- LTWRAPPER_DEBUGPRINTF (("checking path component for symlinks: %s\n",
- tmp_pathspec));
- if (lstat (tmp_pathspec, &s) == 0)
- {
- if (S_ISLNK (s.st_mode) != 0)
- {
- has_symlinks = 1;
- break;
- }
-
- /* search backwards for last DIR_SEPARATOR */
- p = tmp_pathspec + strlen (tmp_pathspec) - 1;
- while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- p--;
- if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
- {
- /* no more DIR_SEPARATORS left */
- break;
- }
- *p = '\0';
- }
- else
- {
- char *errstr = strerror (errno);
- lt_fatal ("Error accessing file %s (%s)", tmp_pathspec, errstr);
- }
- }
- XFREE (tmp_pathspec);
-
- if (!has_symlinks)
- {
- return xstrdup (pathspec);
- }
-
- tmp_pathspec = realpath (pathspec, buf);
- if (tmp_pathspec == 0)
- {
- lt_fatal ("Could not follow symlinks for %s", pathspec);
- }
- return xstrdup (tmp_pathspec);
-#endif
-}
-
-char *
-strendzap (char *str, const char *pat)
-{
- size_t len, patlen;
-
- assert (str != NULL);
- assert (pat != NULL);
-
- len = strlen (str);
- patlen = strlen (pat);
-
- if (patlen <= len)
- {
- str += len - patlen;
- if (strcmp (str, pat) == 0)
- *str = '\0';
- }
- return str;
-}
-
-static void
-lt_error_core (int exit_status, const char *mode,
- const char *message, va_list ap)
-{
- fprintf (stderr, "%s: %s: ", program_name, mode);
- vfprintf (stderr, message, ap);
- fprintf (stderr, ".\n");
-
- if (exit_status >= 0)
- exit (exit_status);
-}
-
-void
-lt_fatal (const char *message, ...)
-{
- va_list ap;
- va_start (ap, message);
- lt_error_core (EXIT_FAILURE, "FATAL", message, ap);
- va_end (ap);
-}
-
-void
-lt_setenv (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_setenv) setting '%s' to '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
- {
-#ifdef HAVE_SETENV
- /* always make a copy, for consistency with !HAVE_SETENV */
- char *str = xstrdup (value);
- setenv (name, str, 1);
-#else
- int len = strlen (name) + 1 + strlen (value) + 1;
- char *str = XMALLOC (char, len);
- sprintf (str, "%s=%s", name, value);
- if (putenv (str) != EXIT_SUCCESS)
- {
- XFREE (str);
- }
-#endif
- }
-}
-
-char *
-lt_extend_str (const char *orig_value, const char *add, int to_end)
-{
- char *new_value;
- if (orig_value && *orig_value)
- {
- int orig_value_len = strlen (orig_value);
- int add_len = strlen (add);
- new_value = XMALLOC (char, add_len + orig_value_len + 1);
- if (to_end)
- {
- strcpy (new_value, orig_value);
- strcpy (new_value + orig_value_len, add);
- }
- else
- {
- strcpy (new_value, add);
- strcpy (new_value + add_len, orig_value);
- }
- }
- else
- {
- new_value = xstrdup (add);
- }
- return new_value;
-}
-
-int
-lt_split_name_value (const char *arg, char** name, char** value)
-{
- const char *p;
- int len;
- if (!arg || !*arg)
- return 1;
-
- p = strchr (arg, (int)'=');
-
- if (!p)
- return 1;
-
- *value = xstrdup (++p);
-
- len = strlen (arg) - strlen (*value);
- *name = XMALLOC (char, len);
- strncpy (*name, arg, len-1);
- (*name)[len - 1] = '\0';
-
- return 0;
-}
-
-void
-lt_opt_process_env_set (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_set_opt, arg);
- }
-
- lt_setenv (name, value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_opt_process_env_prepend (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
- char *new_value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_prepend_opt, arg);
- }
-
- new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_opt_process_env_append (const char *arg)
-{
- char *name = NULL;
- char *value = NULL;
- char *new_value = NULL;
-
- if (lt_split_name_value (arg, &name, &value) != 0)
- {
- XFREE (name);
- XFREE (value);
- lt_fatal ("bad argument for %s: '%s'", env_append_opt, arg);
- }
-
- new_value = lt_extend_str (getenv (name), value, 1);
- lt_setenv (name, new_value);
- XFREE (new_value);
- XFREE (name);
- XFREE (value);
-}
-
-void
-lt_update_exe_path (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- /* some systems can't cope with a ':'-terminated path #' */
- int len = strlen (new_value);
- while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
- {
- new_value[len-1] = '\0';
- }
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-void
-lt_update_lib_path (const char *name, const char *value)
-{
- LTWRAPPER_DEBUGPRINTF (("(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
- (name ? name : "<NULL>"),
- (value ? value : "<NULL>")));
-
- if (name && *name && value && *value)
- {
- char *new_value = lt_extend_str (getenv (name), value, 0);
- lt_setenv (name, new_value);
- XFREE (new_value);
- }
-}
-
-
-EOF
-}
-# end: func_emit_cwrapperexe_src
-
-# func_mode_link arg...
-func_mode_link ()
-{
- $opt_debug
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- # It is impossible to link a dll without this setting, and
- # we shouldn't force the makefile maintainer to figure out
- # which system we are compiling for in order to pass an extra
- # flag for every libtool invocation.
- # allow_undefined=no
-
- # FIXME: Unfortunately, there are problems with the above when trying
- # to make a dll which has undefined symbols, in which case not
- # even a static library is built. For now, we need to specify
- # -no-undefined on the libtool link line when we can be certain
- # that all symbols are satisfied, otherwise we get a static library.
- allow_undefined=yes
- ;;
- *)
- allow_undefined=yes
- ;;
- esac
- libtool_args=$nonopt
- base_compile="$nonopt $@"
- compile_command=$nonopt
- finalize_command=$nonopt
-
- compile_rpath=
- finalize_rpath=
- compile_shlibpath=
- finalize_shlibpath=
- convenience=
- old_convenience=
- deplibs=
- old_deplibs=
- compiler_flags=
- linker_flags=
- dllsearchpath=
- lib_search_path=`pwd`
- inst_prefix_dir=
- new_inherited_linker_flags=
-
- avoid_version=no
- dlfiles=
- dlprefiles=
- dlself=no
- export_dynamic=no
- export_symbols=
- export_symbols_regex=
- generated=
- libobjs=
- ltlibs=
- module=no
- no_install=no
- objs=
- non_pic_objects=
- precious_files_regex=
- prefer_static_libs=no
- preload=no
- prev=
- prevarg=
- release=
- rpath=
- xrpath=
- perm_rpath=
- temp_rpath=
- thread_safe=no
- vinfo=
- vinfo_number=no
- weak_libs=
- single_module="${wl}-single_module"
- func_infer_tag $base_compile
-
- # We need to know -static, to get the right output filenames.
- for arg
- do
- case $arg in
- -shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
- build_old_libs=no
- break
- ;;
- -all-static | -static | -static-libtool-libs)
- case $arg in
- -all-static)
- if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
- func_warning "complete static linking is impossible in this configuration"
- fi
- if test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- -static)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=built
- ;;
- -static-libtool-libs)
- if test -z "$pic_flag" && test -n "$link_static_flag"; then
- dlopen_self=$dlopen_self_static
- fi
- prefer_static_libs=yes
- ;;
- esac
- build_libtool_libs=no
- build_old_libs=yes
- break
- ;;
- esac
- done
-
- # See if our shared archives depend on static archives.
- test -n "$old_archive_from_new_cmds" && build_old_libs=yes
-
- # Go through the arguments, transforming them on the way.
- while test "$#" -gt 0; do
- arg="$1"
- shift
- func_quote_for_eval "$arg"
- qarg=$func_quote_for_eval_unquoted_result
- func_append libtool_args " $func_quote_for_eval_result"
-
- # If the previous option needs an argument, assign it.
- if test -n "$prev"; then
- case $prev in
- output)
- func_append compile_command " @OUTPUT@"
- func_append finalize_command " @OUTPUT@"
- ;;
- esac
-
- case $prev in
- dlfiles|dlprefiles)
- if test "$preload" = no; then
- # Add the symbol object into the linking commands.
- func_append compile_command " @SYMFILE@"
- func_append finalize_command " @SYMFILE@"
- preload=yes
- fi
- case $arg in
- *.la | *.lo) ;; # We handle these cases below.
- force)
- if test "$dlself" = no; then
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- self)
- if test "$prev" = dlprefiles; then
- dlself=yes
- elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
- dlself=yes
- else
- dlself=needless
- export_dynamic=yes
- fi
- prev=
- continue
- ;;
- *)
- if test "$prev" = dlfiles; then
- dlfiles="$dlfiles $arg"
- else
- dlprefiles="$dlprefiles $arg"
- fi
- prev=
- continue
- ;;
- esac
- ;;
- expsyms)
- export_symbols="$arg"
- test -f "$arg" \
- || func_fatal_error "symbol file \`$arg' does not exist"
- prev=
- continue
- ;;
- expsyms_regex)
- export_symbols_regex="$arg"
- prev=
- continue
- ;;
- framework)
- case $host in
- *-*-darwin*)
- case "$deplibs " in
- *" $qarg.ltframework "*) ;;
- *) deplibs="$deplibs $qarg.ltframework" # this is fixed later
- ;;
- esac
- ;;
- esac
- prev=
- continue
- ;;
- inst_prefix)
- inst_prefix_dir="$arg"
- prev=
- continue
- ;;
- objectlist)
- if test -f "$arg"; then
- save_arg=$arg
- moreargs=
- for fil in `cat "$save_arg"`
- do
-# moreargs="$moreargs $fil"
- arg=$fil
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- if test "$pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
-
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
- dlfiles="$dlfiles $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
- # Preload the old-style object.
- dlprefiles="$dlprefiles $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
-
- # Non-PIC object.
- if test "$non_pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "\`$arg' is not a valid libtool object"
- fi
- fi
- done
- else
- func_fatal_error "link input file \`$arg' does not exist"
- fi
- arg=$save_arg
- prev=
- continue
- ;;
- precious_regex)
- precious_files_regex="$arg"
- prev=
- continue
- ;;
- release)
- release="-$arg"
- prev=
- continue
- ;;
- rpath | xrpath)
- # We need an absolute path.
- case $arg in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- if test "$prev" = rpath; then
- case "$rpath " in
- *" $arg "*) ;;
- *) rpath="$rpath $arg" ;;
- esac
- else
- case "$xrpath " in
- *" $arg "*) ;;
- *) xrpath="$xrpath $arg" ;;
- esac
- fi
- prev=
- continue
- ;;
- shrext)
- shrext_cmds="$arg"
- prev=
- continue
- ;;
- weak)
- weak_libs="$weak_libs $arg"
- prev=
- continue
- ;;
- xcclinker)
- linker_flags="$linker_flags $qarg"
- compiler_flags="$compiler_flags $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xcompiler)
- compiler_flags="$compiler_flags $qarg"
- prev=
- func_append compile_command " $qarg"
- func_append finalize_command " $qarg"
- continue
- ;;
- xlinker)
- linker_flags="$linker_flags $qarg"
- compiler_flags="$compiler_flags $wl$qarg"
- prev=
- func_append compile_command " $wl$qarg"
- func_append finalize_command " $wl$qarg"
- continue
- ;;
- *)
- eval "$prev=\"\$arg\""
- prev=
- continue
- ;;
- esac
- fi # test -n "$prev"
-
- prevarg="$arg"
-
- case $arg in
- -all-static)
- if test -n "$link_static_flag"; then
- # See comment for -static flag below, for more details.
- func_append compile_command " $link_static_flag"
- func_append finalize_command " $link_static_flag"
- fi
- continue
- ;;
-
- -allow-undefined)
- # FIXME: remove this flag sometime in the future.
- func_fatal_error "\`-allow-undefined' must not be used because it is the default"
- ;;
-
- -avoid-version)
- avoid_version=yes
- continue
- ;;
-
- -dlopen)
- prev=dlfiles
- continue
- ;;
-
- -dlpreopen)
- prev=dlprefiles
- continue
- ;;
-
- -export-dynamic)
- export_dynamic=yes
- continue
- ;;
-
- -export-symbols | -export-symbols-regex)
- if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
- func_fatal_error "more than one -exported-symbols argument is not allowed"
- fi
- if test "X$arg" = "X-export-symbols"; then
- prev=expsyms
- else
- prev=expsyms_regex
- fi
- continue
- ;;
-
- -framework)
- prev=framework
- continue
- ;;
-
- -inst-prefix-dir)
- prev=inst_prefix
- continue
- ;;
-
- # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
- # so, if we see these flags be careful not to treat them like -L
- -L[A-Z][A-Z]*:*)
- case $with_gcc/$host in
- no/*-*-irix* | /*-*-irix*)
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- ;;
- esac
- continue
- ;;
-
- -L*)
- func_stripname '-L' '' "$arg"
- dir=$func_stripname_result
- if test -z "$dir"; then
- if test "$#" -gt 0; then
- func_fatal_error "require no space between \`-L' and \`$1'"
- else
- func_fatal_error "need path for \`-L' option"
- fi
- fi
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- absdir=`cd "$dir" && pwd`
- test -z "$absdir" && \
- func_fatal_error "cannot determine absolute directory name of \`$dir'"
- dir="$absdir"
- ;;
- esac
- case "$deplibs " in
- *" -L$dir "*) ;;
- *)
- deplibs="$deplibs -L$dir"
- lib_search_path="$lib_search_path $dir"
- ;;
- esac
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`$ECHO "X$dir" | $Xsed -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$dir:"*) ;;
- ::) dllsearchpath=$dir;;
- *) dllsearchpath="$dllsearchpath:$dir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) dllsearchpath="$dllsearchpath:$testbindir";;
- esac
- ;;
- esac
- continue
- ;;
-
- -l*)
- if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc*)
- # These systems don't actually have a C or math library (as such)
- continue
- ;;
- *-*-os2*)
- # These systems don't actually have a C library (as such)
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C and math libraries are in the System framework
- deplibs="$deplibs System.ltframework"
- continue
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- test "X$arg" = "X-lc" && continue
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- test "X$arg" = "X-lc" && continue
- ;;
- esac
- elif test "X$arg" = "X-lc_r"; then
- case $host in
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc_r directly, use -pthread flag.
- continue
- ;;
- esac
- fi
- deplibs="$deplibs $arg"
- continue
- ;;
-
- -module)
- module=yes
- continue
- ;;
-
- # Tru64 UNIX uses -model [arg] to determine the layout of C++
- # classes, name mangling, and exception handling.
- # Darwin uses the -arch flag to determine output architecture.
- -model|-arch|-isysroot)
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- prev=xcompiler
- continue
- ;;
-
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
- compiler_flags="$compiler_flags $arg"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- case "$new_inherited_linker_flags " in
- *" $arg "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $arg" ;;
- esac
- continue
- ;;
-
- -multi_module)
- single_module="${wl}-multi_module"
- continue
- ;;
-
- -no-fast-install)
- fast_install=no
- continue
- ;;
-
- -no-install)
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
- # The PATH hackery in wrapper scripts is required on Windows
- # and Darwin in order for the loader to find any dlls it needs.
- func_warning "\`-no-install' is ignored for $host"
- func_warning "assuming \`-no-fast-install' instead"
- fast_install=no
- ;;
- *) no_install=yes ;;
- esac
- continue
- ;;
-
- -no-undefined)
- allow_undefined=no
- continue
- ;;
-
- -objectlist)
- prev=objectlist
- continue
- ;;
-
- -o) prev=output ;;
-
- -precious-files-regex)
- prev=precious_regex
- continue
- ;;
-
- -release)
- prev=release
- continue
- ;;
-
- -rpath)
- prev=rpath
- continue
- ;;
-
- -R)
- prev=xrpath
- continue
- ;;
-
- -R*)
- func_stripname '-R' '' "$arg"
- dir=$func_stripname_result
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) ;;
- *)
- func_fatal_error "only absolute run-paths are allowed"
- ;;
- esac
- case "$xrpath " in
- *" $dir "*) ;;
- *) xrpath="$xrpath $dir" ;;
- esac
- continue
- ;;
-
- -shared)
- # The effects of -shared are defined in a previous loop.
- continue
- ;;
-
- -shrext)
- prev=shrext
- continue
- ;;
-
- -static | -static-libtool-libs)
- # The effects of -static are defined in a previous loop.
- # We used to do the same as -all-static on platforms that
- # didn't have a PIC flag, but the assumption that the effects
- # would be equivalent was wrong. It would break on at least
- # Digital Unix and AIX.
- continue
- ;;
-
- -thread-safe)
- thread_safe=yes
- continue
- ;;
-
- -version-info)
- prev=vinfo
- continue
- ;;
-
- -version-number)
- prev=vinfo
- vinfo_number=yes
- continue
- ;;
-
- -weak)
- prev=weak
- continue
- ;;
-
- -Wc,*)
- func_stripname '-Wc,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs="$IFS"; IFS=','
- for flag in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$flag"
- arg="$arg $wl$func_quote_for_eval_result"
- compiler_flags="$compiler_flags $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Wl,*)
- func_stripname '-Wl,' '' "$arg"
- args=$func_stripname_result
- arg=
- save_ifs="$IFS"; IFS=','
- for flag in $args; do
- IFS="$save_ifs"
- func_quote_for_eval "$flag"
- arg="$arg $wl$func_quote_for_eval_result"
- compiler_flags="$compiler_flags $wl$func_quote_for_eval_result"
- linker_flags="$linker_flags $func_quote_for_eval_result"
- done
- IFS="$save_ifs"
- func_stripname ' ' '' "$arg"
- arg=$func_stripname_result
- ;;
-
- -Xcompiler)
- prev=xcompiler
- continue
- ;;
-
- -Xlinker)
- prev=xlinker
- continue
- ;;
-
- -XCClinker)
- prev=xcclinker
- continue
- ;;
-
- # -msg_* for osf cc
- -msg_*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
-
- # -64, -mips[0-9] enable 64-bit mode on the SGI compiler
- # -r[0-9][0-9]* specifies the processor on the SGI compiler
- # -xarch=*, -xtarget=* enable 64-bit mode on the Sun compiler
- # +DA*, +DD* enable 64-bit mode on the HP compiler
- # -q* pass through compiler args for the IBM compiler
- # -m*, -t[45]*, -txscale* pass through architecture-specific
- # compiler args for GCC
- # -F/path gives path to uninstalled frameworks, gcc on darwin
- # -p, -pg, --coverage, -fprofile-* pass through profiling flag for GCC
- # @file GCC response files
- -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
- -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- compiler_flags="$compiler_flags $arg"
- continue
- ;;
-
- # Some other compiler flag.
- -* | +*)
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
-
- *.$objext)
- # A standard object.
- objs="$objs $arg"
- ;;
-
- *.lo)
- # A libtool-controlled object.
-
- # Check to see that this really is a libtool object.
- if func_lalib_unsafe_p "$arg"; then
- pic_object=
- non_pic_object=
-
- # Read the .lo file
- func_source "$arg"
-
- if test -z "$pic_object" ||
- test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
- fi
-
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- if test "$pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
-
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
- dlfiles="$dlfiles $pic_object"
- prev=
- continue
- else
- # If libtool objects are unsupported, then we need to preload.
- prev=dlprefiles
- fi
- fi
-
- # CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
- # Preload the old-style object.
- dlprefiles="$dlprefiles $pic_object"
- prev=
- fi
-
- # A PIC object.
- func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
-
- # Non-PIC object.
- if test "$non_pic_object" != none; then
- # Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
-
- # A standard non-PIC object
- func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
- fi
- else
- # If the PIC object exists, use it instead.
- # $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
- func_append non_pic_objects " $non_pic_object"
- fi
- else
- # Only an error if not doing a dry-run.
- if $opt_dry_run; then
- # Extract subdirectory from the argument.
- func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
-
- func_lo2o "$arg"
- pic_object=$xdir$objdir/$func_lo2o_result
- non_pic_object=$xdir$func_lo2o_result
- func_append libobjs " $pic_object"
- func_append non_pic_objects " $non_pic_object"
- else
- func_fatal_error "\`$arg' is not a valid libtool object"
- fi
- fi
- ;;
-
- *.$libext)
- # An archive.
- deplibs="$deplibs $arg"
- old_deplibs="$old_deplibs $arg"
- continue
- ;;
-
- *.la)
- # A libtool-controlled library.
-
- if test "$prev" = dlfiles; then
- # This library was specified with -dlopen.
- dlfiles="$dlfiles $arg"
- prev=
- elif test "$prev" = dlprefiles; then
- # The library was specified with -dlpreopen.
- dlprefiles="$dlprefiles $arg"
- prev=
- else
- deplibs="$deplibs $arg"
- fi
- continue
- ;;
-
- # Some other compiler argument.
- *)
- # Unknown arguments in both finalize_command and compile_command need
- # to be aesthetically quoted because they are evaled later.
- func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
- ;;
- esac # arg
-
- # Now actually substitute the argument into the commands.
- if test -n "$arg"; then
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
- done # argument parsing loop
-
- test -n "$prev" && \
- func_fatal_help "the \`$prevarg' option requires an argument"
-
- if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
- eval arg=\"$export_dynamic_flag_spec\"
- func_append compile_command " $arg"
- func_append finalize_command " $arg"
- fi
-
- oldlibs=
- # calculate the name of the file, without its directory
- func_basename "$output"
- outputname="$func_basename_result"
- libobjs_save="$libobjs"
-
- if test -n "$shlibpath_var"; then
- # get the directories listed in $shlibpath_var
- eval shlib_search_path=\`\$ECHO \"X\${$shlibpath_var}\" \| \$Xsed -e \'s/:/ /g\'\`
- else
- shlib_search_path=
- fi
- eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
- eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
-
- func_dirname "$output" "/" ""
- output_objdir="$func_dirname_result$objdir"
- # Create the object directory.
- func_mkdir_p "$output_objdir"
-
- # Determine the type of output
- case $output in
- "")
- func_fatal_help "you must specify an output file"
- ;;
- *.$libext) linkmode=oldlib ;;
- *.lo | *.$objext) linkmode=obj ;;
- *.la) linkmode=lib ;;
- *) linkmode=prog ;; # Anything else should be a program.
- esac
-
- specialdeplibs=
-
- libs=
- # Find all interdependent deplibs by searching for libraries
- # that are linked more than once (e.g. -la -lb -la)
- for deplib in $deplibs; do
- if $opt_duplicate_deps ; then
- case "$libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- libs="$libs $deplib"
- done
-
- if test "$linkmode" = lib; then
- libs="$predeps $libs $compiler_lib_search_path $postdeps"
-
- # Compute libraries that are listed more than once in $predeps
- # $postdeps and mark them as special (i.e., whose duplicates are
- # not to be eliminated).
- pre_post_deps=
- if $opt_duplicate_compiler_generated_deps; then
- for pre_post_dep in $predeps $postdeps; do
- case "$pre_post_deps " in
- *" $pre_post_dep "*) specialdeplibs="$specialdeplibs $pre_post_deps" ;;
- esac
- pre_post_deps="$pre_post_deps $pre_post_dep"
- done
- fi
- pre_post_deps=
- fi
-
- deplibs=
- newdependency_libs=
- newlib_search_path=
- need_relink=no # whether we're linking any uninstalled libtool libraries
- notinst_deplibs= # not-installed libtool libraries
- notinst_path= # paths that contain not-installed libtool libraries
-
- case $linkmode in
- lib)
- passes="conv dlpreopen link"
- for file in $dlfiles $dlprefiles; do
- case $file in
- *.la) ;;
- *)
- func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
- ;;
- esac
- done
- ;;
- prog)
- compile_deplibs=
- finalize_deplibs=
- alldeplibs=no
- newdlfiles=
- newdlprefiles=
- passes="conv scan dlopen dlpreopen link"
- ;;
- *) passes="conv"
- ;;
- esac
-
- for pass in $passes; do
- # The preopen pass in lib mode reverses $deplibs; put it back here
- # so that -L comes before libs that need it for instance...
- if test "$linkmode,$pass" = "lib,link"; then
- ## FIXME: Find the place where the list is rebuilt in the wrong
- ## order, and fix it there properly
- tmp_deplibs=
- for deplib in $deplibs; do
- tmp_deplibs="$deplib $tmp_deplibs"
- done
- deplibs="$tmp_deplibs"
- fi
-
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan"; then
- libs="$deplibs"
- deplibs=
- fi
- if test "$linkmode" = prog; then
- case $pass in
- dlopen) libs="$dlfiles" ;;
- dlpreopen) libs="$dlprefiles" ;;
- link)
- libs="$deplibs %DEPLIBS%"
- test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
- ;;
- esac
- fi
- if test "$linkmode,$pass" = "lib,dlpreopen"; then
- # Collect and forward deplibs of preopened libtool libs
- for lib in $dlprefiles; do
- # Ignore non-libtool-libs
- dependency_libs=
- case $lib in
- *.la) func_source "$lib" ;;
- esac
-
- # Collect preopened libtool deplibs, except any this library
- # has declared as weak libs
- for deplib in $dependency_libs; do
- deplib_base=`$ECHO "X$deplib" | $Xsed -e "$basename"`
- case " $weak_libs " in
- *" $deplib_base "*) ;;
- *) deplibs="$deplibs $deplib" ;;
- esac
- done
- done
- libs="$dlprefiles"
- fi
- if test "$pass" = dlopen; then
- # Collect dlpreopened libraries
- save_deplibs="$deplibs"
- deplibs=
- fi
-
- for deplib in $libs; do
- lib=
- found=no
- case $deplib in
- -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- compiler_flags="$compiler_flags $deplib"
- if test "$linkmode" = lib ; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -l*)
- if test "$linkmode" != lib && test "$linkmode" != prog; then
- func_warning "\`-l' is ignored for archives/objects"
- continue
- fi
- func_stripname '-l' '' "$deplib"
- name=$func_stripname_result
- if test "$linkmode" = lib; then
- searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
- else
- searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
- fi
- for searchdir in $searchdirs; do
- for search_ext in .la $std_shrext .so .a; do
- # Search the libtool library
- lib="$searchdir/lib${name}${search_ext}"
- if test -f "$lib"; then
- if test "$search_ext" = ".la"; then
- found=yes
- else
- found=no
- fi
- break 2
- fi
- done
- done
- if test "$found" != yes; then
- # deplib doesn't seem to be a libtool library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- else # deplib is a libtool library
- # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
- # We need to do some special things here, and not later.
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $deplib "*)
- if func_lalib_p "$lib"; then
- library_names=
- old_library=
- func_source "$lib"
- for l in $old_library $library_names; do
- ll="$l"
- done
- if test "X$ll" = "X$old_library" ; then # only static version available
- found=no
- func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
- lib=$ladir/$old_library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- fi
- fi
- ;;
- *) ;;
- esac
- fi
- fi
- ;; # -l
- *.ltframework)
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- if test "$linkmode" = lib ; then
- case "$new_inherited_linker_flags " in
- *" $deplib "*) ;;
- * ) new_inherited_linker_flags="$new_inherited_linker_flags $deplib" ;;
- esac
- fi
- fi
- continue
- ;;
- -L*)
- case $linkmode in
- lib)
- deplibs="$deplib $deplibs"
- test "$pass" = conv && continue
- newdependency_libs="$deplib $newdependency_libs"
- func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- prog)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- continue
- fi
- if test "$pass" = scan; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- *)
- func_warning "\`-L' is ignored for archives/objects"
- ;;
- esac # linkmode
- continue
- ;; # -L
- -R*)
- if test "$pass" = link; then
- func_stripname '-R' '' "$deplib"
- dir=$func_stripname_result
- # Make sure the xrpath contains only unique directories.
- case "$xrpath " in
- *" $dir "*) ;;
- *) xrpath="$xrpath $dir" ;;
- esac
- fi
- deplibs="$deplib $deplibs"
- continue
- ;;
- *.la) lib="$deplib" ;;
- *.$libext)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- continue
- fi
- case $linkmode in
- lib)
- # Linking convenience modules into shared libraries is allowed,
- # but linking other static libraries is non-portable.
- case " $dlpreconveniencelibs " in
- *" $deplib "*) ;;
- *)
- valid_a_lib=no
- case $deplibs_check_method in
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- if eval "\$ECHO \"X$deplib\"" 2>/dev/null | $Xsed -e 10q \
- | $EGREP "$match_pattern_regex" > /dev/null; then
- valid_a_lib=yes
- fi
- ;;
- pass_all)
- valid_a_lib=yes
- ;;
- esac
- if test "$valid_a_lib" != yes; then
- $ECHO
- $ECHO "*** Warning: Trying to link with static lib archive $deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because the file extensions .$libext of this argument makes me believe"
- $ECHO "*** that it is just a static archive that I should not use here."
- else
- $ECHO
- $ECHO "*** Warning: Linking the shared library $output against the"
- $ECHO "*** static library $deplib is not portable!"
- deplibs="$deplib $deplibs"
- fi
- ;;
- esac
- continue
- ;;
- prog)
- if test "$pass" != link; then
- deplibs="$deplib $deplibs"
- else
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- fi
- continue
- ;;
- esac # linkmode
- ;; # *.$libext
- *.lo | *.$objext)
- if test "$pass" = conv; then
- deplibs="$deplib $deplibs"
- elif test "$linkmode" = prog; then
- if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
- # If there is no dlopen support or we're linking statically,
- # we need to preload.
- newdlprefiles="$newdlprefiles $deplib"
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- newdlfiles="$newdlfiles $deplib"
- fi
- fi
- continue
- ;;
- %DEPLIBS%)
- alldeplibs=yes
- continue
- ;;
- esac # case $deplib
-
- if test "$found" = yes || test -f "$lib"; then :
- else
- func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
- fi
-
- # Check to see that this really is a libtool archive.
- func_lalib_unsafe_p "$lib" \
- || func_fatal_error "\`$lib' is not a valid libtool archive"
-
- func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
-
- dlname=
- dlopen=
- dlpreopen=
- libdir=
- library_names=
- old_library=
- inherited_linker_flags=
- # If the library was installed with an old release of libtool,
- # it will not redefine variables installed, or shouldnotlink
- installed=yes
- shouldnotlink=no
- avoidtemprpath=
-
-
- # Read the .la file
- func_source "$lib"
-
- # Convert "-framework foo" to "foo.ltframework"
- if test -n "$inherited_linker_flags"; then
- tmp_inherited_linker_flags=`$ECHO "X$inherited_linker_flags" | $Xsed -e 's/-framework \([^ $]*\)/\1.ltframework/g'`
- for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
- case " $new_inherited_linker_flags " in
- *" $tmp_inherited_linker_flag "*) ;;
- *) new_inherited_linker_flags="$new_inherited_linker_flags $tmp_inherited_linker_flag";;
- esac
- done
- fi
- dependency_libs=`$ECHO "X $dependency_libs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan" ||
- { test "$linkmode" != prog && test "$linkmode" != lib; }; then
- test -n "$dlopen" && dlfiles="$dlfiles $dlopen"
- test -n "$dlpreopen" && dlprefiles="$dlprefiles $dlpreopen"
- fi
-
- if test "$pass" = conv; then
- # Only check for convenience libraries
- deplibs="$lib $deplibs"
- if test -z "$libdir"; then
- if test -z "$old_library"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
- fi
- # It is a libtool convenience library, so add in its objects.
- convenience="$convenience $ladir/$objdir/$old_library"
- old_convenience="$old_convenience $ladir/$objdir/$old_library"
- tmp_libs=
- for deplib in $dependency_libs; do
- deplibs="$deplib $deplibs"
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done
- elif test "$linkmode" != prog && test "$linkmode" != lib; then
- func_fatal_error "\`$lib' is not a convenience library"
- fi
- continue
- fi # $pass = conv
-
-
- # Get the name of the library we link against.
- linklib=
- for l in $old_library $library_names; do
- linklib="$l"
- done
- if test -z "$linklib"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
- fi
-
- # This library was specified with -dlopen.
- if test "$pass" = dlopen; then
- if test -z "$libdir"; then
- func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
- fi
- if test -z "$dlname" ||
- test "$dlopen_support" != yes ||
- test "$build_libtool_libs" = no; then
- # If there is no dlname, no dlopen support or we're linking
- # statically, we need to preload. We also need to preload any
- # dependent libraries so libltdl's deplib preloader doesn't
- # bomb out in the load deplibs phase.
- dlprefiles="$dlprefiles $lib $dependency_libs"
- else
- newdlfiles="$newdlfiles $lib"
- fi
- continue
- fi # $pass = dlopen
-
- # We need an absolute path.
- case $ladir in
- [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
- *)
- abs_ladir=`cd "$ladir" && pwd`
- if test -z "$abs_ladir"; then
- func_warning "cannot determine absolute directory name of \`$ladir'"
- func_warning "passing it literally to the linker, although it might fail"
- abs_ladir="$ladir"
- fi
- ;;
- esac
- func_basename "$lib"
- laname="$func_basename_result"
-
- # Find the relevant object directory and library name.
- if test "X$installed" = Xyes; then
- if test ! -f "$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- func_warning "library \`$lib' was moved."
- dir="$ladir"
- absdir="$abs_ladir"
- libdir="$abs_ladir"
- else
- dir="$libdir"
- absdir="$libdir"
- fi
- test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
- else
- if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- dir="$ladir"
- absdir="$abs_ladir"
- # Remove this search path later
- notinst_path="$notinst_path $abs_ladir"
- else
- dir="$ladir/$objdir"
- absdir="$abs_ladir/$objdir"
- # Remove this search path later
- notinst_path="$notinst_path $abs_ladir"
- fi
- fi # $installed = yes
- func_stripname 'lib' '.la' "$laname"
- name=$func_stripname_result
-
- # This library was specified with -dlpreopen.
- if test "$pass" = dlpreopen; then
- if test -z "$libdir" && test "$linkmode" = prog; then
- func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
- fi
- # Prefer using a static library (so that no silly _DYNAMIC symbols
- # are required to link).
- if test -n "$old_library"; then
- newdlprefiles="$newdlprefiles $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
- # Otherwise, use the dlname, so that lt_dlopen finds it.
- elif test -n "$dlname"; then
- newdlprefiles="$newdlprefiles $dir/$dlname"
- else
- newdlprefiles="$newdlprefiles $dir/$linklib"
- fi
- fi # $pass = dlpreopen
-
- if test -z "$libdir"; then
- # Link the convenience library
- if test "$linkmode" = lib; then
- deplibs="$dir/$old_library $deplibs"
- elif test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$dir/$old_library $compile_deplibs"
- finalize_deplibs="$dir/$old_library $finalize_deplibs"
- else
- deplibs="$lib $deplibs" # used for prog,scan pass
- fi
- continue
- fi
-
-
- if test "$linkmode" = prog && test "$pass" != link; then
- newlib_search_path="$newlib_search_path $ladir"
- deplibs="$lib $deplibs"
-
- linkalldeplibs=no
- if test "$link_all_deplibs" != no || test -z "$library_names" ||
- test "$build_libtool_libs" = no; then
- linkalldeplibs=yes
- fi
-
- tmp_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- -L*) func_stripname '-L' '' "$deplib"
- newlib_search_path="$newlib_search_path $func_stripname_result"
- ;;
- esac
- # Need to link against all dependency_libs?
- if test "$linkalldeplibs" = yes; then
- deplibs="$deplib $deplibs"
- else
- # Need to hardcode shared library paths
- # or/and link against static libraries
- newdependency_libs="$deplib $newdependency_libs"
- fi
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done # for deplib
- continue
- fi # $linkmode = prog...
-
- if test "$linkmode,$pass" = "prog,link"; then
- if test -n "$library_names" &&
- { { test "$prefer_static_libs" = no ||
- test "$prefer_static_libs,$installed" = "built,yes"; } ||
- test -z "$old_library"; }; then
- # We need to hardcode the library path
- if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
- # Make sure the rpath contains only unique directories.
- case "$temp_rpath:" in
- *"$absdir:"*) ;;
- *) temp_rpath="$temp_rpath$absdir:" ;;
- esac
- fi
-
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) compile_rpath="$compile_rpath $absdir"
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir"
- esac
- ;;
- esac
- fi # $linkmode,$pass = prog,link...
-
- if test "$alldeplibs" = yes &&
- { test "$deplibs_check_method" = pass_all ||
- { test "$build_libtool_libs" = yes &&
- test -n "$library_names"; }; }; then
- # We only need to search for static libraries
- continue
- fi
- fi
-
- link_static=no # Whether the deplib will be linked statically
- use_static_libs=$prefer_static_libs
- if test "$use_static_libs" = built && test "$installed" = yes; then
- use_static_libs=no
- fi
- if test -n "$library_names" &&
- { test "$use_static_libs" = no || test -z "$old_library"; }; then
- case $host in
- *cygwin* | *mingw* | *cegcc*)
- # No point in relinking DLLs because paths are not encoded
- notinst_deplibs="$notinst_deplibs $lib"
- need_relink=no
- ;;
- *)
- if test "$installed" = no; then
- notinst_deplibs="$notinst_deplibs $lib"
- need_relink=yes
- fi
- ;;
- esac
- # This is a shared library
-
- # Warn about portability, can't link against -module's on some
- # systems (darwin). Don't bleat about dlopened modules though!
- dlopenmodule=""
- for dlpremoduletest in $dlprefiles; do
- if test "X$dlpremoduletest" = "X$lib"; then
- dlopenmodule="$dlpremoduletest"
- break
- fi
- done
- if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
- $ECHO
- if test "$linkmode" = prog; then
- $ECHO "*** Warning: Linking the executable $output against the loadable module"
- else
- $ECHO "*** Warning: Linking the shared library $output against the loadable module"
- fi
- $ECHO "*** $linklib is not portable!"
- fi
- if test "$linkmode" = lib &&
- test "$hardcode_into_libs" = yes; then
- # Hardcode the library path.
- # Skip directories that are in the system default run-time
- # search path.
- case " $sys_lib_dlsearch_path " in
- *" $absdir "*) ;;
- *)
- case "$compile_rpath " in
- *" $absdir "*) ;;
- *) compile_rpath="$compile_rpath $absdir"
- esac
- ;;
- esac
- case " $sys_lib_dlsearch_path " in
- *" $libdir "*) ;;
- *)
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir"
- esac
- ;;
- esac
- fi
-
- if test -n "$old_archive_from_expsyms_cmds"; then
- # figure out the soname
- set dummy $library_names
- shift
- realname="$1"
- shift
- libname=`eval "\\$ECHO \"$libname_spec\""`
- # use dlname if we got it. it's perfectly good, no?
- if test -n "$dlname"; then
- soname="$dlname"
- elif test -n "$soname_spec"; then
- # bleh windows
- case $host in
- *cygwin* | mingw* | *cegcc*)
- func_arith $current - $age
- major=$func_arith_result
- versuffix="-$major"
- ;;
- esac
- eval soname=\"$soname_spec\"
- else
- soname="$realname"
- fi
-
- # Make a new name for the extract_expsyms_cmds to use
- soroot="$soname"
- func_basename "$soroot"
- soname="$func_basename_result"
- func_stripname 'lib' '.dll' "$soname"
- newlib=libimp-$func_stripname_result.a
-
- # If the library has no export list, then create one now
- if test -f "$output_objdir/$soname-def"; then :
- else
- func_verbose "extracting exported symbol list from \`$soname'"
- func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
- fi
-
- # Create $newlib
- if test -f "$output_objdir/$newlib"; then :; else
- func_verbose "generating import library for \`$soname'"
- func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
- fi
- # make sure the library variables are pointing to the new library
- dir=$output_objdir
- linklib=$newlib
- fi # test -n "$old_archive_from_expsyms_cmds"
-
- if test "$linkmode" = prog || test "$mode" != relink; then
- add_shlibpath=
- add_dir=
- add=
- lib_linked=yes
- case $hardcode_action in
- immediate | unsupported)
- if test "$hardcode_direct" = no; then
- add="$dir/$linklib"
- case $host in
- *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
- *-*-sysv4*uw2*) add_dir="-L$dir" ;;
- *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
- *-*-unixware7*) add_dir="-L$dir" ;;
- *-*-darwin* )
- # if the lib is a (non-dlopened) module then we can not
- # link against it, someone is ignoring the earlier warnings
- if /usr/bin/file -L $add 2> /dev/null |
- $GREP ": [^:]* bundle" >/dev/null ; then
- if test "X$dlopenmodule" != "X$lib"; then
- $ECHO "*** Warning: lib $linklib is a module, not a shared library"
- if test -z "$old_library" ; then
- $ECHO
- $ECHO "*** And there doesn't seem to be a static archive available"
- $ECHO "*** The link will probably fail, sorry"
- else
- add="$dir/$old_library"
- fi
- elif test -n "$old_library"; then
- add="$dir/$old_library"
- fi
- fi
- esac
- elif test "$hardcode_minus_L" = no; then
- case $host in
- *-*-sunos*) add_shlibpath="$dir" ;;
- esac
- add_dir="-L$dir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = no; then
- add_shlibpath="$dir"
- add="-l$name"
- else
- lib_linked=no
- fi
- ;;
- relink)
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$dir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$dir"
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- add_dir="$add_dir -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- add_shlibpath="$dir"
- add="-l$name"
- else
- lib_linked=no
- fi
- ;;
- *) lib_linked=no ;;
- esac
-
- if test "$lib_linked" != yes; then
- func_fatal_configuration "unsupported hardcode properties"
- fi
-
- if test -n "$add_shlibpath"; then
- case :$compile_shlibpath: in
- *":$add_shlibpath:"*) ;;
- *) compile_shlibpath="$compile_shlibpath$add_shlibpath:" ;;
- esac
- fi
- if test "$linkmode" = prog; then
- test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
- test -n "$add" && compile_deplibs="$add $compile_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- if test "$hardcode_direct" != yes &&
- test "$hardcode_minus_L" != yes &&
- test "$hardcode_shlibpath_var" = yes; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
- esac
- fi
- fi
- fi
-
- if test "$linkmode" = prog || test "$mode" = relink; then
- add_shlibpath=
- add_dir=
- add=
- # Finalize command for both is simple: just hardcode it.
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$libdir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$libdir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- case :$finalize_shlibpath: in
- *":$libdir:"*) ;;
- *) finalize_shlibpath="$finalize_shlibpath$libdir:" ;;
- esac
- add="-l$name"
- elif test "$hardcode_automatic" = yes; then
- if test -n "$inst_prefix_dir" &&
- test -f "$inst_prefix_dir$libdir/$linklib" ; then
- add="$inst_prefix_dir$libdir/$linklib"
- else
- add="$libdir/$linklib"
- fi
- else
- # We cannot seem to hardcode it, guess we'll fake it.
- add_dir="-L$libdir"
- # Try looking first in the location we're being installed to.
- if test -n "$inst_prefix_dir"; then
- case $libdir in
- [\\/]*)
- add_dir="$add_dir -L$inst_prefix_dir$libdir"
- ;;
- esac
- fi
- add="-l$name"
- fi
-
- if test "$linkmode" = prog; then
- test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
- test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
- else
- test -n "$add_dir" && deplibs="$add_dir $deplibs"
- test -n "$add" && deplibs="$add $deplibs"
- fi
- fi
- elif test "$linkmode" = prog; then
- # Here we assume that one of hardcode_direct or hardcode_minus_L
- # is not unsupported. This is valid on all known static and
- # shared platforms.
- if test "$hardcode_direct" != unsupported; then
- test -n "$old_library" && linklib="$old_library"
- compile_deplibs="$dir/$linklib $compile_deplibs"
- finalize_deplibs="$dir/$linklib $finalize_deplibs"
- else
- compile_deplibs="-l$name -L$dir $compile_deplibs"
- finalize_deplibs="-l$name -L$dir $finalize_deplibs"
- fi
- elif test "$build_libtool_libs" = yes; then
- # Not a shared library
- if test "$deplibs_check_method" != pass_all; then
- # We're trying link a shared library against a static one
- # but the system doesn't support it.
-
- # Just print a warning and add the library to dependency_libs so
- # that the program can be linked against the static library.
- $ECHO
- $ECHO "*** Warning: This system can not link to static lib archive $lib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have."
- if test "$module" = yes; then
- $ECHO "*** But as you try to build a module library, libtool will still create "
- $ECHO "*** a static module, that should work as long as the dlopening application"
- $ECHO "*** is linked with the -dlopen flag to resolve symbols at runtime."
- if test -z "$global_symbol_pipe"; then
- $ECHO
- $ECHO "*** However, this would only work if libtool was able to extract symbol"
- $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
- $ECHO "*** not find such a program. So, this module is probably useless."
- $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
- fi
- if test "$build_old_libs" = no; then
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- else
- deplibs="$dir/$old_library $deplibs"
- link_static=yes
- fi
- fi # link shared/static library?
-
- if test "$linkmode" = lib; then
- if test -n "$dependency_libs" &&
- { test "$hardcode_into_libs" != yes ||
- test "$build_old_libs" = yes ||
- test "$link_static" = yes; }; then
- # Extract -R from dependency_libs
- temp_deplibs=
- for libdir in $dependency_libs; do
- case $libdir in
- -R*) func_stripname '-R' '' "$libdir"
- temp_xrpath=$func_stripname_result
- case " $xrpath " in
- *" $temp_xrpath "*) ;;
- *) xrpath="$xrpath $temp_xrpath";;
- esac;;
- *) temp_deplibs="$temp_deplibs $libdir";;
- esac
- done
- dependency_libs="$temp_deplibs"
- fi
-
- newlib_search_path="$newlib_search_path $absdir"
- # Link against this library
- test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
- # ... and its dependency_libs
- tmp_libs=
- for deplib in $dependency_libs; do
- newdependency_libs="$deplib $newdependency_libs"
- if $opt_duplicate_deps ; then
- case "$tmp_libs " in
- *" $deplib "*) specialdeplibs="$specialdeplibs $deplib" ;;
- esac
- fi
- tmp_libs="$tmp_libs $deplib"
- done
-
- if test "$link_all_deplibs" != no; then
- # Add the search paths of all dependency libraries
- for deplib in $dependency_libs; do
- path=
- case $deplib in
- -L*) path="$deplib" ;;
- *.la)
- func_dirname "$deplib" "" "."
- dir="$func_dirname_result"
- # We need an absolute path.
- case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
- *)
- absdir=`cd "$dir" && pwd`
- if test -z "$absdir"; then
- func_warning "cannot determine absolute directory name of \`$dir'"
- absdir="$dir"
- fi
- ;;
- esac
- if $GREP "^installed=no" $deplib > /dev/null; then
- case $host in
- *-*-darwin*)
- depdepl=
- eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
- if test -n "$deplibrary_names" ; then
- for tmp in $deplibrary_names ; do
- depdepl=$tmp
- done
- if test -f "$absdir/$objdir/$depdepl" ; then
- depdepl="$absdir/$objdir/$depdepl"
- darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- if test -z "$darwin_install_name"; then
- darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
- fi
- compiler_flags="$compiler_flags ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
- linker_flags="$linker_flags -dylib_file ${darwin_install_name}:${depdepl}"
- path=
- fi
- fi
- ;;
- *)
- path="-L$absdir/$objdir"
- ;;
- esac
- else
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
- test "$absdir" != "$libdir" && \
- func_warning "\`$deplib' seems to be moved"
-
- path="-L$absdir"
- fi
- ;;
- esac
- case " $deplibs " in
- *" $path "*) ;;
- *) deplibs="$path $deplibs" ;;
- esac
- done
- fi # link_all_deplibs != no
- fi # linkmode = lib
- done # for deplib in $libs
- if test "$pass" = link; then
- if test "$linkmode" = "prog"; then
- compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
- finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
- else
- compiler_flags="$compiler_flags "`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- fi
- fi
- dependency_libs="$newdependency_libs"
- if test "$pass" = dlpreopen; then
- # Link the dlpreopened libraries before other libraries
- for deplib in $save_deplibs; do
- deplibs="$deplib $deplibs"
- done
- fi
- if test "$pass" != dlopen; then
- if test "$pass" != conv; then
- # Make sure lib_search_path contains only unique directories.
- lib_search_path=
- for dir in $newlib_search_path; do
- case "$lib_search_path " in
- *" $dir "*) ;;
- *) lib_search_path="$lib_search_path $dir" ;;
- esac
- done
- newlib_search_path=
- fi
-
- if test "$linkmode,$pass" != "prog,link"; then
- vars="deplibs"
- else
- vars="compile_deplibs finalize_deplibs"
- fi
- for var in $vars dependency_libs; do
- # Add libraries to $var in reverse order
- eval tmp_libs=\"\$$var\"
- new_libs=
- for deplib in $tmp_libs; do
- # FIXME: Pedantically, this is the right thing to do, so
- # that some nasty dependency loop isn't accidentally
- # broken:
- #new_libs="$deplib $new_libs"
- # Pragmatically, this seems to cause very few problems in
- # practice:
- case $deplib in
- -L*) new_libs="$deplib $new_libs" ;;
- -R*) ;;
- *)
- # And here is the reason: when a library appears more
- # than once as an explicit dependence of a library, or
- # is implicitly linked in more than once by the
- # compiler, it is considered special, and multiple
- # occurrences thereof are not removed. Compare this
- # with having the same library being listed as a
- # dependency of multiple other libraries: in this case,
- # we know (pedantically, we assume) the library does not
- # need to be listed more than once, so we keep only the
- # last copy. This is not always right, but it is rare
- # enough that we require users that really mean to play
- # such unportable linking tricks to link the library
- # using -Wl,-lname, so that libtool does not consider it
- # for duplicate removal.
- case " $specialdeplibs " in
- *" $deplib "*) new_libs="$deplib $new_libs" ;;
- *)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$deplib $new_libs" ;;
- esac
- ;;
- esac
- ;;
- esac
- done
- tmp_libs=
- for deplib in $new_libs; do
- case $deplib in
- -L*)
- case " $tmp_libs " in
- *" $deplib "*) ;;
- *) tmp_libs="$tmp_libs $deplib" ;;
- esac
- ;;
- *) tmp_libs="$tmp_libs $deplib" ;;
- esac
- done
- eval $var=\"$tmp_libs\"
- done # for var
- fi
- # Last step: remove runtime libs from dependency_libs
- # (they stay in deplibs)
- tmp_libs=
- for i in $dependency_libs ; do
- case " $predeps $postdeps $compiler_lib_search_path " in
- *" $i "*)
- i=""
- ;;
- esac
- if test -n "$i" ; then
- tmp_libs="$tmp_libs $i"
- fi
- done
- dependency_libs=$tmp_libs
- done # for pass
- if test "$linkmode" = prog; then
- dlfiles="$newdlfiles"
- fi
- if test "$linkmode" = prog || test "$linkmode" = lib; then
- dlprefiles="$newdlprefiles"
- fi
-
- case $linkmode in
- oldlib)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for archives"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for archives" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for archives"
-
- test -n "$xrpath" && \
- func_warning "\`-R' is ignored for archives"
-
- test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for archives"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for archives"
-
- test -n "$export_symbols$export_symbols_regex" && \
- func_warning "\`-export-symbols' is ignored for archives"
-
- # Now set the variables for building old libraries.
- build_libtool_libs=no
- oldlibs="$output"
- objs="$objs$old_deplibs"
- ;;
-
- lib)
- # Make sure we only generate libraries of the form `libNAME.la'.
- case $outputname in
- lib*)
- func_stripname 'lib' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- ;;
- *)
- test "$module" = no && \
- func_fatal_help "libtool library \`$output' must begin with \`lib'"
-
- if test "$need_lib_prefix" != no; then
- # Add the "lib" prefix for modules if required
- func_stripname '' '.la' "$outputname"
- name=$func_stripname_result
- eval shared_ext=\"$shrext_cmds\"
- eval libname=\"$libname_spec\"
- else
- func_stripname '' '.la' "$outputname"
- libname=$func_stripname_result
- fi
- ;;
- esac
-
- if test -n "$objs"; then
- if test "$deplibs_check_method" != pass_all; then
- func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
- else
- $ECHO
- $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
- $ECHO "*** objects $objs is not portable!"
- libobjs="$libobjs $objs"
- fi
- fi
-
- test "$dlself" != no && \
- func_warning "\`-dlopen self' is ignored for libtool libraries"
-
- set dummy $rpath
- shift
- test "$#" -gt 1 && \
- func_warning "ignoring multiple \`-rpath's for a libtool library"
-
- install_libdir="$1"
-
- oldlibs=
- if test -z "$rpath"; then
- if test "$build_libtool_libs" = yes; then
- # Building a libtool convenience library.
- # Some compilers have problems with a `.al' extension so
- # convenience libraries should have the same extension an
- # archive normally would.
- oldlibs="$output_objdir/$libname.$libext $oldlibs"
- build_libtool_libs=convenience
- build_old_libs=yes
- fi
-
- test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for convenience libraries"
- else
-
- # Parse the version information argument.
- save_ifs="$IFS"; IFS=':'
- set dummy $vinfo 0 0 0
- shift
- IFS="$save_ifs"
-
- test -n "$7" && \
- func_fatal_help "too many parameters to \`-version-info'"
-
- # convert absolute version numbers to libtool ages
- # this retains compatibility with .la files and attempts
- # to make the code below a bit more comprehensible
-
- case $vinfo_number in
- yes)
- number_major="$1"
- number_minor="$2"
- number_revision="$3"
- #
- # There are really only two kinds -- those that
- # use the current revision as the major version
- # and those that subtract age and use age as
- # a minor version. But, then there is irix
- # which has an extra 1 added just for fun
- #
- case $version_type in
- darwin|linux|osf|windows|none)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age="$number_minor"
- revision="$number_revision"
- ;;
- freebsd-aout|freebsd-elf|sunos)
- current="$number_major"
- revision="$number_minor"
- age="0"
- ;;
- irix|nonstopux)
- func_arith $number_major + $number_minor
- current=$func_arith_result
- age="$number_minor"
- revision="$number_minor"
- lt_irix_increment=no
- ;;
- *)
- func_fatal_configuration "$modename: unknown library version type \`$version_type'"
- ;;
- esac
- ;;
- no)
- current="$1"
- revision="$2"
- age="$3"
- ;;
- esac
-
- # Check that each of the things are valid numbers.
- case $current in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "CURRENT \`$current' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- case $revision in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "REVISION \`$revision' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- case $age in
- 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
- *)
- func_error "AGE \`$age' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
- ;;
- esac
-
- if test "$age" -gt "$current"; then
- func_error "AGE \`$age' is greater than the current interface number \`$current'"
- func_fatal_error "\`$vinfo' is not valid version information"
- fi
-
- # Calculate the version variables.
- major=
- versuffix=
- verstring=
- case $version_type in
- none) ;;
-
- darwin)
- # Like Linux, but with the current version available in
- # verstring for coding it into the library header
- func_arith $current - $age
- major=.$func_arith_result
- versuffix="$major.$age.$revision"
- # Darwin ld doesn't like 0 for these options...
- func_arith $current + 1
- minor_current=$func_arith_result
- xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
- verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
- ;;
-
- freebsd-aout)
- major=".$current"
- versuffix=".$current.$revision";
- ;;
-
- freebsd-elf)
- major=".$current"
- versuffix=".$current"
- ;;
-
- irix | nonstopux)
- if test "X$lt_irix_increment" = "Xno"; then
- func_arith $current - $age
- else
- func_arith $current - $age + 1
- fi
- major=$func_arith_result
-
- case $version_type in
- nonstopux) verstring_prefix=nonstopux ;;
- *) verstring_prefix=sgi ;;
- esac
- verstring="$verstring_prefix$major.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$revision
- while test "$loop" -ne 0; do
- func_arith $revision - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring="$verstring_prefix$major.$iface:$verstring"
- done
-
- # Before this point, $major must not contain `.'.
- major=.$major
- versuffix="$major.$revision"
- ;;
-
- linux)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix="$major.$age.$revision"
- ;;
-
- osf)
- func_arith $current - $age
- major=.$func_arith_result
- versuffix=".$current.$age.$revision"
- verstring="$current.$age.$revision"
-
- # Add in all the interfaces that we are compatible with.
- loop=$age
- while test "$loop" -ne 0; do
- func_arith $current - $loop
- iface=$func_arith_result
- func_arith $loop - 1
- loop=$func_arith_result
- verstring="$verstring:${iface}.0"
- done
-
- # Make executables depend on our current version.
- verstring="$verstring:${current}.0"
- ;;
-
- qnx)
- major=".$current"
- versuffix=".$current"
- ;;
-
- sunos)
- major=".$current"
- versuffix=".$current.$revision"
- ;;
-
- windows)
- # Use '-' rather than '.', since we only want one
- # extension on DOS 8.3 filesystems.
- func_arith $current - $age
- major=$func_arith_result
- versuffix="-$major"
- ;;
-
- *)
- func_fatal_configuration "unknown library version type \`$version_type'"
- ;;
- esac
-
- # Clear the version info if we defaulted, and they specified a release.
- if test -z "$vinfo" && test -n "$release"; then
- major=
- case $version_type in
- darwin)
- # we can't check for "0.0" in archive_cmds due to quoting
- # problems, so we reset it completely
- verstring=
- ;;
- *)
- verstring="0.0"
- ;;
- esac
- if test "$need_version" = no; then
- versuffix=
- else
- versuffix=".0.0"
- fi
- fi
-
- # Remove version info from name if versioning should be avoided
- if test "$avoid_version" = yes && test "$need_version" = no; then
- major=
- versuffix=
- verstring=""
- fi
-
- # Check to see if the archive will have undefined symbols.
- if test "$allow_undefined" = yes; then
- if test "$allow_undefined_flag" = unsupported; then
- func_warning "undefined symbols not allowed in $host shared libraries"
- build_libtool_libs=no
- build_old_libs=yes
- fi
- else
- # Don't allow undefined symbols.
- allow_undefined_flag="$no_undefined_flag"
- fi
-
- fi
-
- func_generate_dlsyms "$libname" "$libname" "yes"
- libobjs="$libobjs $symfileobj"
- test "X$libobjs" = "X " && libobjs=
-
- if test "$mode" != relink; then
- # Remove our outputs, but don't remove object files since they
- # may have been created when compiling PIC objects.
- removelist=
- tempremovelist=`$ECHO "$output_objdir/*"`
- for p in $tempremovelist; do
- case $p in
- *.$objext | *.gcno)
- ;;
- $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
- if test "X$precious_files_regex" != "X"; then
- if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
- then
- continue
- fi
- fi
- removelist="$removelist $p"
- ;;
- *) ;;
- esac
- done
- test -n "$removelist" && \
- func_show_eval "${RM}r \$removelist"
- fi
-
- # Now set the variables for building old libraries.
- if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
- oldlibs="$oldlibs $output_objdir/$libname.$libext"
-
- # Transform .lo files to .o files.
- oldobjs="$objs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e "$lo2o" | $NL2SP`
- fi
-
- # Eliminate all temporary directories.
- #for path in $notinst_path; do
- # lib_search_path=`$ECHO "X$lib_search_path " | $Xsed -e "s% $path % %g"`
- # deplibs=`$ECHO "X$deplibs " | $Xsed -e "s% -L$path % %g"`
- # dependency_libs=`$ECHO "X$dependency_libs " | $Xsed -e "s% -L$path % %g"`
- #done
-
- if test -n "$xrpath"; then
- # If the user specified any rpath flags, then add them.
- temp_xrpath=
- for libdir in $xrpath; do
- temp_xrpath="$temp_xrpath -R$libdir"
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir" ;;
- esac
- done
- if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
- dependency_libs="$temp_xrpath $dependency_libs"
- fi
- fi
-
- # Make sure dlfiles contains only unique files that won't be dlpreopened
- old_dlfiles="$dlfiles"
- dlfiles=
- for lib in $old_dlfiles; do
- case " $dlprefiles $dlfiles " in
- *" $lib "*) ;;
- *) dlfiles="$dlfiles $lib" ;;
- esac
- done
-
- # Make sure dlprefiles contains only unique files
- old_dlprefiles="$dlprefiles"
- dlprefiles=
- for lib in $old_dlprefiles; do
- case "$dlprefiles " in
- *" $lib "*) ;;
- *) dlprefiles="$dlprefiles $lib" ;;
- esac
- done
-
- if test "$build_libtool_libs" = yes; then
- if test -n "$rpath"; then
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc*)
- # these systems don't actually have a c library (as such)!
- ;;
- *-*-rhapsody* | *-*-darwin1.[012])
- # Rhapsody C library is in the System framework
- deplibs="$deplibs System.ltframework"
- ;;
- *-*-netbsd*)
- # Don't link with libc until the a.out ld.so is fixed.
- ;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
- # Do not include libc due to us having libc/libc_r.
- ;;
- *-*-sco3.2v5* | *-*-sco5v6*)
- # Causes problems with __ctype
- ;;
- *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
- # Compiler inserts libc in the correct place for threads to work
- ;;
- *)
- # Add libc to deplibs on all other systems if necessary.
- if test "$build_libtool_need_lc" = "yes"; then
- deplibs="$deplibs -lc"
- fi
- ;;
- esac
- fi
-
- # Transform deplibs into only deplibs that can be linked in shared.
- name_save=$name
- libname_save=$libname
- release_save=$release
- versuffix_save=$versuffix
- major_save=$major
- # I'm not sure if I'm treating the release correctly. I think
- # release should show up in the -l (ie -lgmp5) so we don't want to
- # add it in twice. Is that correct?
- release=""
- versuffix=""
- major=""
- newdeplibs=
- droppeddeps=no
- case $deplibs_check_method in
- pass_all)
- # Don't check for shared/static. Everything works.
- # This might be a little naive. We might want to check
- # whether the library exists or not. But this is on
- # osf3 & osf4 and I'm not really sure... Just
- # implementing what was already the behavior.
- newdeplibs=$deplibs
- ;;
- test_compile)
- # This code stresses the "libraries are programs" paradigm to its
- # limits. Maybe even breaks it. We compile a program, linking it
- # against the deplibs as a proxy for the library. Then we can check
- # whether they linked in statically or dynamically with ldd.
- $opt_dry_run || $RM conftest.c
- cat > conftest.c <<EOF
- int main() { return 0; }
-EOF
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
- ldd_output=`ldd conftest`
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $i "*)
- newdeplibs="$newdeplibs $i"
- i=""
- ;;
- esac
- fi
- if test -n "$i" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
- newdeplibs="$newdeplibs $i"
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which I believe you do not have"
- $ECHO "*** because a test_compile did reveal that the linker did not use it for"
- $ECHO "*** its dynamic dependency list that programs get resolved with at runtime."
- fi
- fi
- ;;
- *)
- newdeplibs="$newdeplibs $i"
- ;;
- esac
- done
- else
- # Error occurred in the first compile. Let's try to salvage
- # the situation: Compile a separate program for each library.
- for i in $deplibs; do
- case $i in
- -l*)
- func_stripname -l '' "$i"
- name=$func_stripname_result
- $opt_dry_run || $RM conftest
- if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
- ldd_output=`ldd conftest`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $i "*)
- newdeplibs="$newdeplibs $i"
- i=""
- ;;
- esac
- fi
- if test -n "$i" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
- set dummy $deplib_matches; shift
- deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
- newdeplibs="$newdeplibs $i"
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: dynamic linker does not accept needed library $i."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because a test_compile did reveal that the linker did not use this one"
- $ECHO "*** as a dynamic dependency that programs can get resolved with at runtime."
- fi
- fi
- else
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning! Library $i is needed by this library but I was not able to"
- $ECHO "*** make it link in! You will probably need to install it or some"
- $ECHO "*** library that it depends on before this library will be fully"
- $ECHO "*** functional. Installing it before continuing would be even better."
- fi
- ;;
- *)
- newdeplibs="$newdeplibs $i"
- ;;
- esac
- done
- fi
- ;;
- file_magic*)
- set dummy $deplibs_check_method; shift
- file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- ;;
- esac
- fi
- if test -n "$a_deplib" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- # Follow soft links.
- if ls -lLd "$potent_lib" 2>/dev/null |
- $GREP " -> " >/dev/null; then
- continue
- fi
- # The statement above tries to avoid entering an
- # endless loop below, in case of cyclic links.
- # We might still enter an endless loop, since a link
- # loop can be closed while we follow links,
- # but so what?
- potlib="$potent_lib"
- while test -h "$potlib" 2>/dev/null; do
- potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
- case $potliblink in
- [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
- *) potlib=`$ECHO "X$potlib" | $Xsed -e 's,[^/]*$,,'`"$potliblink";;
- esac
- done
- if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
- $SED -e 10q |
- $EGREP "$file_magic_regex" > /dev/null; then
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib" ; then
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
- $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a file magic. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- newdeplibs="$newdeplibs $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- match_pattern*)
- set dummy $deplibs_check_method; shift
- match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
- for a_deplib in $deplibs; do
- case $a_deplib in
- -l*)
- func_stripname -l '' "$a_deplib"
- name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- case " $predeps $postdeps " in
- *" $a_deplib "*)
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- ;;
- esac
- fi
- if test -n "$a_deplib" ; then
- libname=`eval "\\$ECHO \"$libname_spec\""`
- for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
- for potent_lib in $potential_libs; do
- potlib="$potent_lib" # see symlink-check above in file_magic test
- if eval "\$ECHO \"X$potent_lib\"" 2>/dev/null | $Xsed -e 10q | \
- $EGREP "$match_pattern_regex" > /dev/null; then
- newdeplibs="$newdeplibs $a_deplib"
- a_deplib=""
- break 2
- fi
- done
- done
- fi
- if test -n "$a_deplib" ; then
- droppeddeps=yes
- $ECHO
- $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
- $ECHO "*** I have the capability to make that library automatically link in when"
- $ECHO "*** you link to this library. But I can only do this if you have a"
- $ECHO "*** shared version of the library, which you do not appear to have"
- $ECHO "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
- $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
- else
- $ECHO "*** with $libname and none of the candidates passed a file format test"
- $ECHO "*** using a regex pattern. Last file checked: $potlib"
- fi
- fi
- ;;
- *)
- # Add a -L argument.
- newdeplibs="$newdeplibs $a_deplib"
- ;;
- esac
- done # Gone through all deplibs.
- ;;
- none | unknown | *)
- newdeplibs=""
- tmp_deplibs=`$ECHO "X $deplibs" | $Xsed \
- -e 's/ -lc$//' -e 's/ -[LR][^ ]*//g'`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- for i in $predeps $postdeps ; do
- # can't use Xsed below, because $i might contain '/'
- tmp_deplibs=`$ECHO "X $tmp_deplibs" | $Xsed -e "s,$i,,"`
- done
- fi
- if $ECHO "X $tmp_deplibs" | $Xsed -e 's/[ ]//g' |
- $GREP . >/dev/null; then
- $ECHO
- if test "X$deplibs_check_method" = "Xnone"; then
- $ECHO "*** Warning: inter-library dependencies are not supported in this platform."
- else
- $ECHO "*** Warning: inter-library dependencies are not known to be supported."
- fi
- $ECHO "*** All declared inter-library dependencies are being dropped."
- droppeddeps=yes
- fi
- ;;
- esac
- versuffix=$versuffix_save
- major=$major_save
- release=$release_save
- libname=$libname_save
- name=$name_save
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library with the System framework
- newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- if test "$droppeddeps" = yes; then
- if test "$module" = yes; then
- $ECHO
- $ECHO "*** Warning: libtool could not satisfy all declared inter-library"
- $ECHO "*** dependencies of module $libname. Therefore, libtool will create"
- $ECHO "*** a static module, that should work as long as the dlopening"
- $ECHO "*** application is linked with the -dlopen flag."
- if test -z "$global_symbol_pipe"; then
- $ECHO
- $ECHO "*** However, this would only work if libtool was able to extract symbol"
- $ECHO "*** lists from a program, using \`nm' or equivalent, but libtool could"
- $ECHO "*** not find such a program. So, this module is probably useless."
- $ECHO "*** \`nm' from GNU binutils and a full rebuild may help."
- fi
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- else
- $ECHO "*** The inter-library dependencies that have been dropped here will be"
- $ECHO "*** automatically added whenever a program is linked with this library"
- $ECHO "*** or is declared to -dlopen it."
-
- if test "$allow_undefined" = no; then
- $ECHO
- $ECHO "*** Since this library must not contain undefined symbols,"
- $ECHO "*** because either the platform does not support them or"
- $ECHO "*** it was explicitly requested with -no-undefined,"
- $ECHO "*** libtool will only create a static version of it."
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
- build_libtool_libs=module
- build_old_libs=yes
- else
- build_libtool_libs=no
- fi
- fi
- fi
- fi
- # Done checking deplibs!
- deplibs=$newdeplibs
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- case $host in
- *-*-darwin*)
- newdeplibs=`$ECHO "X $newdeplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- new_inherited_linker_flags=`$ECHO "X $new_inherited_linker_flags" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- deplibs=`$ECHO "X $deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $deplibs " in
- *" -L$path/$objdir "*)
- new_libs="$new_libs -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- done
- deplibs="$new_libs"
-
- # All the library-specific variables (install_libdir is set above).
- library_names=
- old_library=
- dlname=
-
- # Test again, we may have decided not to build it any more
- if test "$build_libtool_libs" = yes; then
- if test "$hardcode_into_libs" = yes; then
- # Hardcode the library paths
- hardcode_libdirs=
- dep_rpath=
- rpath="$finalize_rpath"
- test "$mode" != relink && rpath="$compile_rpath$rpath"
- for libdir in $rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- dep_rpath="$dep_rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) perm_rpath="$perm_rpath $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- if test -n "$hardcode_libdir_flag_spec_ld"; then
- eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
- else
- eval dep_rpath=\"$hardcode_libdir_flag_spec\"
- fi
- fi
- if test -n "$runpath_var" && test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- rpath="$rpath$dir:"
- done
- eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
- fi
- test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
- fi
-
- shlibpath="$finalize_shlibpath"
- test "$mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
- if test -n "$shlibpath"; then
- eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
- fi
-
- # Get the real and link names of the library.
- eval shared_ext=\"$shrext_cmds\"
- eval library_names=\"$library_names_spec\"
- set dummy $library_names
- shift
- realname="$1"
- shift
-
- if test -n "$soname_spec"; then
- eval soname=\"$soname_spec\"
- else
- soname="$realname"
- fi
- if test -z "$dlname"; then
- dlname=$soname
- fi
-
- lib="$output_objdir/$realname"
- linknames=
- for link
- do
- linknames="$linknames $link"
- done
-
- # Use standard objects if they are pic
- test -z "$pic_flag" && libobjs=`$ECHO "X$libobjs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- test "X$libobjs" = "X " && libobjs=
-
- delfiles=
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
- export_symbols="$output_objdir/$libname.uexp"
- delfiles="$delfiles $export_symbols"
- fi
-
- orig_export_symbols=
- case $host_os in
- cygwin* | mingw* | cegcc*)
- if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
- # exporting using user supplied symfile
- if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
- # and it's NOT already a .def file. Must figure out
- # which of the given symbols are data symbols and tag
- # them as such. So, trigger use of export_symbols_cmds.
- # export_symbols gets reassigned inside the "prepare
- # the list of exported symbols" if statement, so the
- # include_expsyms logic still works.
- orig_export_symbols="$export_symbols"
- export_symbols=
- always_export_symbols=yes
- fi
- fi
- ;;
- esac
-
- # Prepare the list of exported symbols
- if test -z "$export_symbols"; then
- if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
- $opt_dry_run || $RM $export_symbols
- cmds=$export_symbols_cmds
- save_ifs="$IFS"; IFS='~'
- for cmd in $cmds; do
- IFS="$save_ifs"
- eval cmd=\"$cmd\"
- func_len " $cmd"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- func_show_eval "$cmd" 'exit $?'
- skipped_export=false
- else
- # The command line is too long to execute in one step.
- func_verbose "using reloadable object file for export list..."
- skipped_export=:
- # Break out early, otherwise skipped_export may be
- # set to false by a later but shorter cmd.
- break
- fi
- done
- IFS="$save_ifs"
- if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
- fi
-
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
- $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
-
- tmp_deplibs=
- for test_deplib in $deplibs; do
- case " $convenience " in
- *" $test_deplib "*) ;;
- *)
- tmp_deplibs="$tmp_deplibs $test_deplib"
- ;;
- esac
- done
- deplibs="$tmp_deplibs"
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec" &&
- test "$compiler_needs_object" = yes &&
- test -z "$libobjs"; then
- # extract the archives, so we have objects to list.
- # TODO: could optimize this to just extract one archive.
- whole_archive_flag_spec=
- fi
- if test -n "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- else
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $convenience
- libobjs="$libobjs $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
- fi
-
- if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
- eval flag=\"$thread_safe_flag_spec\"
- linker_flags="$linker_flags $flag"
- fi
-
- # Make a backup of the uninstalled library when relinking
- if test "$mode" = relink; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
- fi
-
- # Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- eval test_cmds=\"$module_expsym_cmds\"
- cmds=$module_expsym_cmds
- else
- eval test_cmds=\"$module_cmds\"
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- eval test_cmds=\"$archive_expsym_cmds\"
- cmds=$archive_expsym_cmds
- else
- eval test_cmds=\"$archive_cmds\"
- cmds=$archive_cmds
- fi
- fi
-
- if test "X$skipped_export" != "X:" &&
- func_len " $test_cmds" &&
- len=$func_len_result &&
- test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- :
- else
- # The command line is too long to link in one step, link piecewise
- # or, if using GNU ld and skipped_export is not :, use a linker
- # script.
-
- # Save the value of $output and $libobjs because we want to
- # use them later. If we have whole_archive_flag_spec, we
- # want to use save_libobjs as it was before
- # whole_archive_flag_spec was expanded, because we can't
- # assume the linker understands whole_archive_flag_spec.
- # This may have to be revisited, in case too many
- # convenience libraries get linked in and end up exceeding
- # the spec.
- if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
- save_libobjs=$libobjs
- fi
- save_output=$output
- output_la=`$ECHO "X$output" | $Xsed -e "$basename"`
-
- # Clear the reloadable object creation command queue and
- # initialize k to one.
- test_cmds=
- concat_cmds=
- objlist=
- last_robj=
- k=1
-
- if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
- output=${output_objdir}/${output_la}.lnkscript
- func_verbose "creating GNU ld script: $output"
- $ECHO 'INPUT (' > $output
- for obj in $save_libobjs
- do
- $ECHO "$obj" >> $output
- done
- $ECHO ')' >> $output
- delfiles="$delfiles $output"
- elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
- output=${output_objdir}/${output_la}.lnk
- func_verbose "creating linker input file list: $output"
- : > $output
- set x $save_libobjs
- shift
- firstobj=
- if test "$compiler_needs_object" = yes; then
- firstobj="$1 "
- shift
- fi
- for obj
- do
- $ECHO "$obj" >> $output
- done
- delfiles="$delfiles $output"
- output=$firstobj\"$file_list_spec$output\"
- else
- if test -n "$save_libobjs"; then
- func_verbose "creating reloadable object files..."
- output=$output_objdir/$output_la-${k}.$objext
- eval test_cmds=\"$reload_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
-
- # Loop over the list of objects to be linked.
- for obj in $save_libobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- if test "X$objlist" = X ||
- test "$len" -lt "$max_cmd_len"; then
- func_append objlist " $obj"
- else
- # The command $test_cmds is almost too long, add a
- # command to the queue.
- if test "$k" -eq 1 ; then
- # The first file doesn't have a previous command to add.
- eval concat_cmds=\"$reload_cmds $objlist $last_robj\"
- else
- # All subsequent reloadable object files will link in
- # the last one created.
- eval concat_cmds=\"\$concat_cmds~$reload_cmds $objlist $last_robj~\$RM $last_robj\"
- fi
- last_robj=$output_objdir/$output_la-${k}.$objext
- func_arith $k + 1
- k=$func_arith_result
- output=$output_objdir/$output_la-${k}.$objext
- objlist=$obj
- func_len " $last_robj"
- func_arith $len0 + $func_len_result
- len=$func_arith_result
- fi
- done
- # Handle the remaining objects by creating one last
- # reloadable object file. All subsequent reloadable object
- # files will link in the last one created.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$reload_cmds $objlist $last_robj\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
- fi
- delfiles="$delfiles $output"
-
- else
- output=
- fi
-
- if ${skipped_export-false}; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
- $opt_dry_run || $RM $export_symbols
- libobjs=$output
- # Append the command to create the export file.
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
- if test -n "$last_robj"; then
- eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
- fi
- fi
-
- test -n "$save_libobjs" &&
- func_verbose "creating a temporary reloadable object file: $output"
-
- # Loop through the commands generated above and execute them.
- save_ifs="$IFS"; IFS='~'
- for cmd in $concat_cmds; do
- IFS="$save_ifs"
- $opt_silent || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS="$save_ifs"
-
- if test -n "$export_symbols_regex" && ${skipped_export-false}; then
- func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
- func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
- fi
- fi
-
- if ${skipped_export-false}; then
- if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
- $opt_dry_run || eval '$ECHO "X$include_expsyms" | $Xsed | $SP2NL >> "$tmp_export_symbols"'
- fi
-
- if test -n "$orig_export_symbols"; then
- # The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
- # FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
- # though. Also, the filter scales superlinearly with the number of
- # global variables. join(1) would be nice here, but unfortunately
- # isn't a blessed tool.
- $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
- delfiles="$delfiles $export_symbols $output_objdir/$libname.filter"
- export_symbols=$output_objdir/$libname.def
- $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
- fi
- fi
-
- libobjs=$output
- # Restore the value of output.
- output=$save_output
-
- if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
- eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
- test "X$libobjs" = "X " && libobjs=
- fi
- # Expand the library linking commands again to reset the
- # value of $libobjs for piecewise linking.
-
- # Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
- if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
- cmds=$module_expsym_cmds
- else
- cmds=$module_cmds
- fi
- else
- if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
- cmds=$archive_expsym_cmds
- else
- cmds=$archive_cmds
- fi
- fi
- fi
-
- if test -n "$delfiles"; then
- # Append the command to remove temporary files to $cmds.
- eval cmds=\"\$cmds~\$RM $delfiles\"
- fi
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $dlprefiles
- libobjs="$libobjs $func_extract_archives_result"
- test "X$libobjs" = "X " && libobjs=
- fi
-
- save_ifs="$IFS"; IFS='~'
- for cmd in $cmds; do
- IFS="$save_ifs"
- eval cmd=\"$cmd\"
- $opt_silent || {
- func_quote_for_expand "$cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
- $opt_dry_run || eval "$cmd" || {
- lt_exit=$?
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- ( cd "$output_objdir" && \
- $RM "${realname}T" && \
- $MV "${realname}U" "$realname" )
- fi
-
- exit $lt_exit
- }
- done
- IFS="$save_ifs"
-
- # Restore the uninstalled library and exit
- if test "$mode" = relink; then
- $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
-
- if test -n "$convenience"; then
- if test -z "$whole_archive_flag_spec"; then
- func_show_eval '${RM}r "$gentop"'
- fi
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- # Create links to the real library.
- for linkname in $linknames; do
- if test "$realname" != "$linkname"; then
- func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
- fi
- done
-
- # If -module or -export-dynamic was specified, set the dlname.
- if test "$module" = yes || test "$export_dynamic" = yes; then
- # On all known operating systems, these are identical.
- dlname="$soname"
- fi
- fi
- ;;
-
- obj)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for objects"
- fi
-
- case " $deplibs" in
- *\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for objects" ;;
- esac
-
- test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for objects"
-
- test -n "$xrpath" && \
- func_warning "\`-R' is ignored for objects"
-
- test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for objects"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for objects"
-
- case $output in
- *.lo)
- test -n "$objs$old_deplibs" && \
- func_fatal_error "cannot build library object \`$output' from non-libtool objects"
-
- libobj=$output
- func_lo2o "$libobj"
- obj=$func_lo2o_result
- ;;
- *)
- libobj=
- obj="$output"
- ;;
- esac
-
- # Delete the old objects.
- $opt_dry_run || $RM $obj $libobj
-
- # Objects from convenience libraries. This assumes
- # single-version convenience libraries. Whenever we create
- # different ones for PIC/non-PIC, this we'll have to duplicate
- # the extraction.
- reload_conv_objs=
- gentop=
- # reload_cmds runs $LD directly, so let us get rid of
- # -Wl from whole_archive_flag_spec and hope we can get by with
- # turning comma into space..
- wl=
-
- if test -n "$convenience"; then
- if test -n "$whole_archive_flag_spec"; then
- eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
- reload_conv_objs=$reload_objs\ `$ECHO "X$tmp_whole_archive_flags" | $Xsed -e 's|,| |g'`
- else
- gentop="$output_objdir/${obj}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $convenience
- reload_conv_objs="$reload_objs $func_extract_archives_result"
- fi
- fi
-
- # Create the old-style object.
- reload_objs="$objs$old_deplibs "`$ECHO "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}$'/d' -e '/\.lib$/d' -e "$lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
-
- output="$obj"
- func_execute_cmds "$reload_cmds" 'exit $?'
-
- # Exit if we aren't doing a library object file.
- if test -z "$libobj"; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- fi
-
- if test "$build_libtool_libs" != yes; then
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- # Create an invalid libtool object if no PIC, so that we don't
- # accidentally link it into a program.
- # $show "echo timestamp > $libobj"
- # $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
- exit $EXIT_SUCCESS
- fi
-
- if test -n "$pic_flag" || test "$pic_mode" != default; then
- # Only do commands if we really have different PIC objects.
- reload_objs="$libobjs $reload_conv_objs"
- output="$libobj"
- func_execute_cmds "$reload_cmds" 'exit $?'
- fi
-
- if test -n "$gentop"; then
- func_show_eval '${RM}r "$gentop"'
- fi
-
- exit $EXIT_SUCCESS
- ;;
-
- prog)
- case $host in
- *cygwin*) func_stripname '' '.exe' "$output"
- output=$func_stripname_result.exe;;
- esac
- test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for programs"
-
- test -n "$release" && \
- func_warning "\`-release' is ignored for programs"
-
- test "$preload" = yes \
- && test "$dlopen_support" = unknown \
- && test "$dlopen_self" = unknown \
- && test "$dlopen_self_static" = unknown && \
- func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
-
- case $host in
- *-*-rhapsody* | *-*-darwin1.[012])
- # On Rhapsody replace the C library is the System framework
- compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's/ -lc / System.ltframework /'`
- ;;
- esac
-
- case $host in
- *-*-darwin*)
- # Don't allow lazy linking, it breaks C++ global constructors
- # But is supposedly fixed on 10.4 or later (yay!).
- if test "$tagname" = CXX ; then
- case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
- 10.[0123])
- compile_command="$compile_command ${wl}-bind_at_load"
- finalize_command="$finalize_command ${wl}-bind_at_load"
- ;;
- esac
- fi
- # Time to change all our "foo.ltframework" stuff back to "-framework foo"
- compile_deplibs=`$ECHO "X $compile_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- finalize_deplibs=`$ECHO "X $finalize_deplibs" | $Xsed -e 's% \([^ $]*\).ltframework% -framework \1%g'`
- ;;
- esac
-
-
- # move library search paths that coincide with paths to not yet
- # installed libraries to the beginning of the library search list
- new_libs=
- for path in $notinst_path; do
- case " $new_libs " in
- *" -L$path/$objdir "*) ;;
- *)
- case " $compile_deplibs " in
- *" -L$path/$objdir "*)
- new_libs="$new_libs -L$path/$objdir" ;;
- esac
- ;;
- esac
- done
- for deplib in $compile_deplibs; do
- case $deplib in
- -L*)
- case " $new_libs " in
- *" $deplib "*) ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- ;;
- *) new_libs="$new_libs $deplib" ;;
- esac
- done
- compile_deplibs="$new_libs"
-
-
- compile_command="$compile_command $compile_deplibs"
- finalize_command="$finalize_command $finalize_deplibs"
-
- if test -n "$rpath$xrpath"; then
- # If the user specified any rpath flags, then add them.
- for libdir in $rpath $xrpath; do
- # This is the magic to use -rpath.
- case "$finalize_rpath " in
- *" $libdir "*) ;;
- *) finalize_rpath="$finalize_rpath $libdir" ;;
- esac
- done
- fi
-
- # Now hardcode the library paths
- rpath=
- hardcode_libdirs=
- for libdir in $compile_rpath $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- rpath="$rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$perm_rpath " in
- *" $libdir "*) ;;
- *) perm_rpath="$perm_rpath $libdir" ;;
- esac
- fi
- case $host in
- *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
- case :$dllsearchpath: in
- *":$libdir:"*) ;;
- ::) dllsearchpath=$libdir;;
- *) dllsearchpath="$dllsearchpath:$libdir";;
- esac
- case :$dllsearchpath: in
- *":$testbindir:"*) ;;
- ::) dllsearchpath=$testbindir;;
- *) dllsearchpath="$dllsearchpath:$testbindir";;
- esac
- ;;
- esac
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- compile_rpath="$rpath"
-
- rpath=
- hardcode_libdirs=
- for libdir in $finalize_rpath; do
- if test -n "$hardcode_libdir_flag_spec"; then
- if test -n "$hardcode_libdir_separator"; then
- if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
- else
- # Just accumulate the unique libdirs.
- case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
- *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
- ;;
- *)
- hardcode_libdirs="$hardcode_libdirs$hardcode_libdir_separator$libdir"
- ;;
- esac
- fi
- else
- eval flag=\"$hardcode_libdir_flag_spec\"
- rpath="$rpath $flag"
- fi
- elif test -n "$runpath_var"; then
- case "$finalize_perm_rpath " in
- *" $libdir "*) ;;
- *) finalize_perm_rpath="$finalize_perm_rpath $libdir" ;;
- esac
- fi
- done
- # Substitute the hardcoded libdirs into the rpath.
- if test -n "$hardcode_libdir_separator" &&
- test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
- eval rpath=\" $hardcode_libdir_flag_spec\"
- fi
- finalize_rpath="$rpath"
-
- if test -n "$libobjs" && test "$build_old_libs" = yes; then
- # Transform all the library objects into standard objects.
- compile_command=`$ECHO "X$compile_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- finalize_command=`$ECHO "X$finalize_command" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP`
- fi
-
- func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
-
- # template prelinking step
- if test -n "$prelink_cmds"; then
- func_execute_cmds "$prelink_cmds" 'exit $?'
- fi
-
- wrappers_required=yes
- case $host in
- *cygwin* | *mingw* )
- if test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
- ;;
- *cegcc)
- # Disable wrappers for cegcc, we are cross compiling anyway.
- wrappers_required=no
- ;;
- *)
- if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
- ;;
- esac
- if test "$wrappers_required" = no; then
- # Replace the output file specification.
- compile_command=`$ECHO "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
- link_command="$compile_command$compile_rpath"
-
- # We have no uninstalled library dependencies, so finalize right now.
- exit_status=0
- func_show_eval "$link_command" 'exit_status=$?'
-
- # Delete the generated files.
- if test -f "$output_objdir/${outputname}S.${objext}"; then
- func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
- fi
-
- exit $exit_status
- fi
-
- if test -n "$compile_shlibpath$finalize_shlibpath"; then
- compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
- fi
- if test -n "$finalize_shlibpath"; then
- finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
- fi
-
- compile_var=
- finalize_var=
- if test -n "$runpath_var"; then
- if test -n "$perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $perm_rpath; do
- rpath="$rpath$dir:"
- done
- compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- if test -n "$finalize_perm_rpath"; then
- # We should set the runpath_var.
- rpath=
- for dir in $finalize_perm_rpath; do
- rpath="$rpath$dir:"
- done
- finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
- fi
- fi
-
- if test "$no_install" = yes; then
- # We don't need to create a wrapper script.
- link_command="$compile_var$compile_command$compile_rpath"
- # Replace the output file specification.
- link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
- # Delete the old output file.
- $opt_dry_run || $RM $output
- # Link the executable and exit
- func_show_eval "$link_command" 'exit $?'
- exit $EXIT_SUCCESS
- fi
-
- if test "$hardcode_action" = relink; then
- # Fast installation is not supported
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
-
- func_warning "this platform does not like uninstalled shared libraries"
- func_warning "\`$output' will be relinked during installation"
- else
- if test "$fast_install" != no; then
- link_command="$finalize_var$compile_command$finalize_rpath"
- if test "$fast_install" = yes; then
- relink_command=`$ECHO "X$compile_var$compile_command$compile_rpath" | $Xsed -e 's%@OUTPUT@%\$progdir/\$file%g'`
- else
- # fast_install is set to needless
- relink_command=
- fi
- else
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
- fi
- fi
-
- # Replace the output file specification.
- link_command=`$ECHO "X$link_command" | $Xsed -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
-
- # Delete the old output files.
- $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
-
- func_show_eval "$link_command" 'exit $?'
-
- # Now create the wrapper script.
- func_verbose "creating $output"
-
- # Quote the relink command for shipping.
- if test -n "$relink_command"; then
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- relink_command="(cd `pwd`; $relink_command)"
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
- fi
-
- # Quote $ECHO for shipping.
- if test "X$ECHO" = "X$SHELL $progpath --fallback-echo"; then
- case $progpath in
- [\\/]* | [A-Za-z]:[\\/]*) qecho="$SHELL $progpath --fallback-echo";;
- *) qecho="$SHELL `pwd`/$progpath --fallback-echo";;
- esac
- qecho=`$ECHO "X$qecho" | $Xsed -e "$sed_quote_subst"`
- else
- qecho=`$ECHO "X$ECHO" | $Xsed -e "$sed_quote_subst"`
- fi
-
- # Only actually do things if not in dry run mode.
- $opt_dry_run || {
- # win32 will think the script is a binary if it has
- # a .exe suffix, so we strip it off here.
- case $output in
- *.exe) func_stripname '' '.exe' "$output"
- output=$func_stripname_result ;;
- esac
- # test for cygwin because mv fails w/o .exe extensions
- case $host in
- *cygwin*)
- exeext=.exe
- func_stripname '' '.exe' "$outputname"
- outputname=$func_stripname_result ;;
- *) exeext= ;;
- esac
- case $host in
- *cygwin* | *mingw* )
- func_dirname_and_basename "$output" "" "."
- output_name=$func_basename_result
- output_path=$func_dirname_result
- cwrappersource="$output_path/$objdir/lt-$output_name.c"
- cwrapper="$output_path/$output_name.exe"
- $RM $cwrappersource $cwrapper
- trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_cwrapperexe_src > $cwrappersource
-
- # The wrapper executable is built using the $host compiler,
- # because it contains $host paths and files. If cross-
- # compiling, it, like the target executable, must be
- # executed on the $host or under an emulation environment.
- $opt_dry_run || {
- $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
- $STRIP $cwrapper
- }
-
- # Now, create the wrapper script for func_source use:
- func_ltwrapper_scriptname $cwrapper
- $RM $func_ltwrapper_scriptname_result
- trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
- $opt_dry_run || {
- # note: this script will not be executed, so do not chmod.
- if test "x$build" = "x$host" ; then
- $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
- else
- func_emit_wrapper no > $func_ltwrapper_scriptname_result
- fi
- }
- ;;
- * )
- $RM $output
- trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
-
- func_emit_wrapper no > $output
- chmod +x $output
- ;;
- esac
- }
- exit $EXIT_SUCCESS
- ;;
- esac
-
- # See if we need to build an old-fashioned archive.
- for oldlib in $oldlibs; do
-
- if test "$build_libtool_libs" = convenience; then
- oldobjs="$libobjs_save $symfileobj"
- addlibs="$convenience"
- build_libtool_libs=no
- else
- if test "$build_libtool_libs" = module; then
- oldobjs="$libobjs_save"
- build_libtool_libs=no
- else
- oldobjs="$old_deplibs $non_pic_objects"
- if test "$preload" = yes && test -f "$symfileobj"; then
- oldobjs="$oldobjs $symfileobj"
- fi
- fi
- addlibs="$old_convenience"
- fi
-
- if test -n "$addlibs"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $addlibs
- oldobjs="$oldobjs $func_extract_archives_result"
- fi
-
- # Do each command in the archive commands.
- if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
- cmds=$old_archive_from_new_cmds
- else
-
- # Add any objects from preloaded convenience libraries
- if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
-
- func_extract_archives $gentop $dlprefiles
- oldobjs="$oldobjs $func_extract_archives_result"
- fi
-
- # POSIX demands no paths to be encoded in archives. We have
- # to avoid creating archives with duplicate basenames if we
- # might have to extract them afterwards, e.g., when creating a
- # static archive out of a convenience library, or when linking
- # the entirety of a libtool archive into another (currently
- # not supported by libtool).
- if (for obj in $oldobjs
- do
- func_basename "$obj"
- $ECHO "$func_basename_result"
- done | sort | sort -uc >/dev/null 2>&1); then
- :
- else
- $ECHO "copying selected object files to avoid basename conflicts..."
- gentop="$output_objdir/${outputname}x"
- generated="$generated $gentop"
- func_mkdir_p "$gentop"
- save_oldobjs=$oldobjs
- oldobjs=
- counter=1
- for obj in $save_oldobjs
- do
- func_basename "$obj"
- objbase="$func_basename_result"
- case " $oldobjs " in
- " ") oldobjs=$obj ;;
- *[\ /]"$objbase "*)
- while :; do
- # Make sure we don't pick an alternate name that also
- # overlaps.
- newobj=lt$counter-$objbase
- func_arith $counter + 1
- counter=$func_arith_result
- case " $oldobjs " in
- *[\ /]"$newobj "*) ;;
- *) if test ! -f "$gentop/$newobj"; then break; fi ;;
- esac
- done
- func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
- oldobjs="$oldobjs $gentop/$newobj"
- ;;
- *) oldobjs="$oldobjs $obj" ;;
- esac
- done
- fi
- eval cmds=\"$old_archive_cmds\"
-
- func_len " $cmds"
- len=$func_len_result
- if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
- cmds=$old_archive_cmds
- else
- # the command line is too long to link in one step, link in parts
- func_verbose "using piecewise archive linking..."
- save_RANLIB=$RANLIB
- RANLIB=:
- objlist=
- concat_cmds=
- save_oldobjs=$oldobjs
- oldobjs=
- # Is there a better way of finding the last object in the list?
- for obj in $save_oldobjs
- do
- last_oldobj=$obj
- done
- eval test_cmds=\"$old_archive_cmds\"
- func_len " $test_cmds"
- len0=$func_len_result
- len=$len0
- for obj in $save_oldobjs
- do
- func_len " $obj"
- func_arith $len + $func_len_result
- len=$func_arith_result
- func_append objlist " $obj"
- if test "$len" -lt "$max_cmd_len"; then
- :
- else
- # the above command should be used before it gets too long
- oldobjs=$objlist
- if test "$obj" = "$last_oldobj" ; then
- RANLIB=$save_RANLIB
- fi
- test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
- objlist=
- len=$len0
- fi
- done
- RANLIB=$save_RANLIB
- oldobjs=$objlist
- if test "X$oldobjs" = "X" ; then
- eval cmds=\"\$concat_cmds\"
- else
- eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
- fi
- fi
- fi
- func_execute_cmds "$cmds" 'exit $?'
- done
-
- test -n "$generated" && \
- func_show_eval "${RM}r$generated"
-
- # Now create the libtool archive.
- case $output in
- *.la)
- old_library=
- test "$build_old_libs" = yes && old_library="$libname.$libext"
- func_verbose "creating $output"
-
- # Preserve any variables that may affect compiler behavior
- for var in $variables_saved_for_relink; do
- if eval test -z \"\${$var+set}\"; then
- relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
- elif eval var_value=\$$var; test -z "$var_value"; then
- relink_command="$var=; export $var; $relink_command"
- else
- func_quote_for_eval "$var_value"
- relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
- fi
- done
- # Quote the link command for shipping.
- relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
- relink_command=`$ECHO "X$relink_command" | $Xsed -e "$sed_quote_subst"`
- if test "$hardcode_automatic" = yes ; then
- relink_command=
- fi
-
- # Only create the output if not a dry run.
- $opt_dry_run || {
- for installed in no yes; do
- if test "$installed" = yes; then
- if test -z "$install_libdir"; then
- break
- fi
- output="$output_objdir/$outputname"i
- # Replace all uninstalled libtool libraries with the installed ones
- newdependency_libs=
- for deplib in $dependency_libs; do
- case $deplib in
- *.la)
- func_basename "$deplib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
- test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
- newdependency_libs="$newdependency_libs $libdir/$name"
- ;;
- *) newdependency_libs="$newdependency_libs $deplib" ;;
- esac
- done
- dependency_libs="$newdependency_libs"
- newdlfiles=
-
- for lib in $dlfiles; do
- case $lib in
- *.la)
- func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "\`$lib' is not a valid libtool archive"
- newdlfiles="$newdlfiles $libdir/$name"
- ;;
- *) newdlfiles="$newdlfiles $lib" ;;
- esac
- done
- dlfiles="$newdlfiles"
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- *.la)
- # Only pass preopened files to the pseudo-archive (for
- # eventual linking with the app. that links it) if we
- # didn't already link the preopened objects directly into
- # the library:
- func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
- test -z "$libdir" && \
- func_fatal_error "\`$lib' is not a valid libtool archive"
- newdlprefiles="$newdlprefiles $libdir/$name"
- ;;
- esac
- done
- dlprefiles="$newdlprefiles"
- else
- newdlfiles=
- for lib in $dlfiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- newdlfiles="$newdlfiles $abs"
- done
- dlfiles="$newdlfiles"
- newdlprefiles=
- for lib in $dlprefiles; do
- case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
- *) abs=`pwd`"/$lib" ;;
- esac
- newdlprefiles="$newdlprefiles $abs"
- done
- dlprefiles="$newdlprefiles"
- fi
- $RM $output
- # place dlname in correct position for cygwin
- tdlname=$dlname
- case $host,$output,$installed,$module,$dlname in
- *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll) tdlname=../bin/$dlname ;;
- esac
- $ECHO > $output "\
-# $outputname - a libtool library file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='$tdlname'
-
-# Names of this library.
-library_names='$library_names'
-
-# The name of the static archive.
-old_library='$old_library'
-
-# Linker flags that can not go in dependency_libs.
-inherited_linker_flags='$new_inherited_linker_flags'
-
-# Libraries that this one depends upon.
-dependency_libs='$dependency_libs'
-
-# Names of additional weak libraries provided by this library
-weak_library_names='$weak_libs'
-
-# Version information for $libname.
-current=$current
-age=$age
-revision=$revision
-
-# Is this an already installed library?
-installed=$installed
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=$module
-
-# Files to dlopen/dlpreopen
-dlopen='$dlfiles'
-dlpreopen='$dlprefiles'
-
-# Directory that this library needs to be installed in:
-libdir='$install_libdir'"
- if test "$installed" = no && test "$need_relink" = yes; then
- $ECHO >> $output "\
-relink_command=\"$relink_command\""
- fi
- done
- }
-
- # Do a symbolic link so that the libtool archive can be found in
- # LD_LIBRARY_PATH before the program is installed.
- func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
- ;;
- esac
- exit $EXIT_SUCCESS
-}
-
-{ test "$mode" = link || test "$mode" = relink; } &&
- func_mode_link ${1+"$@"}
-
-
-# func_mode_uninstall arg...
-func_mode_uninstall ()
-{
- $opt_debug
- RM="$nonopt"
- files=
- rmforce=
- exit_status=0
-
- # This variable tells wrapper scripts just to set variables rather
- # than running their programs.
- libtool_install_magic="$magic"
-
- for arg
- do
- case $arg in
- -f) RM="$RM $arg"; rmforce=yes ;;
- -*) RM="$RM $arg" ;;
- *) files="$files $arg" ;;
- esac
- done
-
- test -z "$RM" && \
- func_fatal_help "you must specify an RM program"
-
- rmdirs=
-
- origobjdir="$objdir"
- for file in $files; do
- func_dirname "$file" "" "."
- dir="$func_dirname_result"
- if test "X$dir" = X.; then
- objdir="$origobjdir"
- else
- objdir="$dir/$origobjdir"
- fi
- func_basename "$file"
- name="$func_basename_result"
- test "$mode" = uninstall && objdir="$dir"
-
- # Remember objdir for removal later, being careful to avoid duplicates
- if test "$mode" = clean; then
- case " $rmdirs " in
- *" $objdir "*) ;;
- *) rmdirs="$rmdirs $objdir" ;;
- esac
- fi
-
- # Don't error if the file doesn't exist and rm -f was used.
- if { test -L "$file"; } >/dev/null 2>&1 ||
- { test -h "$file"; } >/dev/null 2>&1 ||
- test -f "$file"; then
- :
- elif test -d "$file"; then
- exit_status=1
- continue
- elif test "$rmforce" = yes; then
- continue
- fi
-
- rmfiles="$file"
-
- case $name in
- *.la)
- # Possibly a libtool archive, so verify it.
- if func_lalib_p "$file"; then
- func_source $dir/$name
-
- # Delete the libtool libraries and symlinks.
- for n in $library_names; do
- rmfiles="$rmfiles $objdir/$n"
- done
- test -n "$old_library" && rmfiles="$rmfiles $objdir/$old_library"
-
- case "$mode" in
- clean)
- case " $library_names " in
- # " " in the beginning catches empty $dlname
- *" $dlname "*) ;;
- *) rmfiles="$rmfiles $objdir/$dlname" ;;
- esac
- test -n "$libdir" && rmfiles="$rmfiles $objdir/$name $objdir/${name}i"
- ;;
- uninstall)
- if test -n "$library_names"; then
- # Do each command in the postuninstall commands.
- func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
- fi
-
- if test -n "$old_library"; then
- # Do each command in the old_postuninstall commands.
- func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
- fi
- # FIXME: should reinstall the best remaining shared library.
- ;;
- esac
- fi
- ;;
-
- *.lo)
- # Possibly a libtool object, so verify it.
- if func_lalib_p "$file"; then
-
- # Read the .lo file
- func_source $dir/$name
-
- # Add PIC object to the list of files to remove.
- if test -n "$pic_object" &&
- test "$pic_object" != none; then
- rmfiles="$rmfiles $dir/$pic_object"
- fi
-
- # Add non-PIC object to the list of files to remove.
- if test -n "$non_pic_object" &&
- test "$non_pic_object" != none; then
- rmfiles="$rmfiles $dir/$non_pic_object"
- fi
- fi
- ;;
-
- *)
- if test "$mode" = clean ; then
- noexename=$name
- case $file in
- *.exe)
- func_stripname '' '.exe' "$file"
- file=$func_stripname_result
- func_stripname '' '.exe' "$name"
- noexename=$func_stripname_result
- # $file with .exe has already been added to rmfiles,
- # add $file without .exe
- rmfiles="$rmfiles $file"
- ;;
- esac
- # Do a test to see if this is a libtool program.
- if func_ltwrapper_p "$file"; then
- if func_ltwrapper_executable_p "$file"; then
- func_ltwrapper_scriptname "$file"
- relink_command=
- func_source $func_ltwrapper_scriptname_result
- rmfiles="$rmfiles $func_ltwrapper_scriptname_result"
- else
- relink_command=
- func_source $dir/$noexename
- fi
-
- # note $name still contains .exe if it was in $file originally
- # as does the version of $file that was added into $rmfiles
- rmfiles="$rmfiles $objdir/$name $objdir/${name}S.${objext}"
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-#! /bin/sh
-# mkinstalldirs --- make directory hierarchy
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-# End:
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+++ /dev/null
-<html>
- <head>
- <style>
- body {
- max-width: 40em;
- margin: 2em;
- }
-
- a {
- color: inherit;
- }
-
- a:hover {
- color: red;
- }
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- dt { margin-top: 1em; }
- dd { margin-bottom: 1em; }
-
- table {
- margin: 1em 0;
- padding: 0;
- }
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- table th {
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- padding: 0.2em;
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- }
-
- table td {
- padding: 0.2em;
- text-align: left;
- white-space: nowrap;
- }
-
- </style>
- <title>Asynchronous I/O in Windows for Unix Programmers</title>
- </head>
- <body>
-<h1>Asynchronous I/O in Windows for Unix Programmers</h1>
-
-<p>Ryan Dahl ryan@joyent.com
-
-<p>This document assumes you are familiar with how non-blocking socket I/O
-is done in Unix.
-
-<p>The syscall
-<a href="http://msdn.microsoft.com/en-us/library/ms740141(v=VS.85).aspx"><code>select</code>
- is available in Windows</a>
-but <code>select</code> processing is O(n) in the number of file descriptors
-unlike the modern constant-time multiplexers like epoll which makes select
-unacceptable for high-concurrency servers.
-This document will describe how high-concurrency programs are
-designed in Windows.
-
-<p>
-Instead of <a href="http://en.wikipedia.org/wiki/Epoll">epoll</a>
-or
-<a href="http://en.wikipedia.org/wiki/Kqueue">kqueue</a>,
-Windows has its own I/O multiplexer called
-<a href="http://msdn.microsoft.com/en-us/library/aa365198(VS.85).aspx">I/O completion ports</a>
-(IOCPs). IOCPs are the objects used to poll
-<a href="http://msdn.microsoft.com/en-us/library/ms686358(v=vs.85).aspx">overlapped I/O</a>
-for completion. IOCP polling is constant time (REF?).
-
-<p>
-The fundamental variation is that in a Unix you generally ask the kernel to
-wait for state change in a file descriptor's readability or writablity. With
-overlapped I/O and IOCPs the programmers waits for asynchronous function
-calls to complete.
-For example, instead of waiting for a socket to become writable and then
-using <a
- href="http://www.kernel.org/doc/man-pages/online/pages/man2/send.2.html"><code>send(2)</code></a>
-on it, as you commonly would do in a Unix, with overlapped I/O you
-would rather <a
- href="http://msdn.microsoft.com/en-us/library/ms742203(v=vs.85).aspx"><code>WSASend()</code></a>
-the data and then wait for it to have been sent.
-
-<p> Unix non-blocking I/O is not beautiful. A principle abstraction in Unix
-is the unified treatment of many things as files (or more precisely as file
-descriptors). <code>write(2)</code>, <code>read(2)</code>, and
-<code>close(2)</code> work with TCP sockets just as they do on regular
-files. Well—kind of. Synchronous operations work similarly on different
-types of file descriptors but once demands on performance drive you to world of
-<code>O_NONBLOCK</code> various types of file descriptors can act quite
-different for even the most basic operations. In particular,
-regular file system files do <i>not</i> support non-blocking operations.
-
-(Disturbingly no man page mentions this rather important fact.)
-
-For example, one cannot poll on a regular file FD for readability expecting
-it to indicate when it is safe to do a non-blocking read.
-
-Regular file are always readable and <code>read(2)</code> calls
-<i>always</i> have the possibility of blocking the calling thread for an
-unknown amount of time.
-
-<p>POSIX has defined <a
- href="http://pubs.opengroup.org/onlinepubs/007908799/xsh/aio.h.html">an
- asynchronous interface</a> for some operations but implementations for
-many Unixes have unclear status. On Linux the
-<code>aio_*</code> routines are implemented in userland in GNU libc using
-pthreads.
-<a
- href="http://www.kernel.org/doc/man-pages/online/pages/man2/io_submit.2.html"><code>io_submit(2)</code></a>
-does not have a GNU libc wrapper and has been reported <a
- href="http://voinici.ceata.org/~sana/blog/?p=248"> to be very slow and
- possibly blocking</a>. <a
- href="http://download.oracle.com/docs/cd/E19253-01/816-5171/aio-write-3rt/index.html">Solaris
- has real kernel AIO</a> but it's unclear what its performance
-characteristics are for socket I/O as opposed to disk I/O.
-Contemporary high-performance Unix socket programs use non-blocking
-file descriptors with a I/O multiplexer—not POSIX AIO.
-Common practice for accessing the disk asynchronously is still done using custom
-userland thread pools—not POSIX AIO.
-
-<p>Windows IOCPs does support both sockets and regular file I/O which
-greatly simplifies the handling of disks. For example,
-<a href="http://msdn.microsoft.com/en-us/library/aa365468(v=VS.85).aspx"><code>ReadFileEx()</code></a>
-operates on both.
-As a first example let's look at how <code>ReadFile()</code> works.
-
-<pre>
-typedef void* HANDLE;
-
-BOOL ReadFile(HANDLE file,
- void* buffer,
- DWORD numberOfBytesToRead,
- DWORD* numberOfBytesRead,
- OVERLAPPED* overlapped);
-</pre>
-
-<p>
-The function has the possibility of executing the read synchronously
-or asynchronously. A synchronous operation is indicated by
-returning 0 and <a
-href="http://msdn.microsoft.com/en-us/library/ms741580(v=VS.85).aspx">WSAGetLastError()</code></a>
-returning <code>WSA_IO_PENDING</code>.
-When <code>ReadFile()</code> operates asynchronously the
-the user-supplied <a
-href="http://msdn.microsoft.com/en-us/library/ms741665(v=VS.85).aspx"><code>OVERLAPPED*</code></a>
-is a handle to the incomplete operation.
-
-<pre>
-typedef struct {
- unsigned long* Internal;
- unsigned long* InternalHigh;
- union {
- struct {
- WORD Offset;
- WORD OffsetHigh;
- };
- void* Pointer;
- };
- HANDLE hEvent;
-} OVERLAPPED;
-</pre>
-
-To poll on the completion of one of these functions,
-use an IOCP, <code>overlapped->hEvent</code>, and
-<a
-href="http://msdn.microsoft.com/en-us/library/aa364986(v=vs.85).aspx"><code>GetQueuedCompletionStatus()</code></a>.
-
-<h3>Simple TCP Connection Example</h3>
-
-<p>To demonstrate the use of <code>GetQueuedCompletionStatus()</code> an
-example of connecting to <code>localhost</code> at port 8000 is presented.
-
-<pre>
-char* buffer[200];
-WSABUF b = { buffer, 200 };
-size_t bytes_recvd;
-int r, total_events;
-OVERLAPPED overlapped;
-HANDLE port;
-
-port = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, NULL, 0);
-if (!port) {
- goto error;
-}
-
-
-r = WSARecv(socket, &b, 1, &bytes_recvd, NULL, &overlapped, NULL);
-
-CreateIoCompletionPort(port, &overlapped.hEvent,
-
-if (r == 0) {
- if (WSAGetLastError() == WSA_IO_PENDING) {
- /* Asynchronous */
- GetQueuedCompletionStatus()
-
-
- if (r == WAIT_TIMEOUT) {
- printf("Timeout\n");
- } else {
-
- }
-
-
- } else {
- /* Error */
- printf("Error %d\n", WSAGetLastError());
- }
-} else {
- /* Synchronous */
- printf("read %ld bytes from socket\n", bytes_recvd);
-}
-
-
-
-</pre>
-
-<h3>Previous Work</h3>
-
-<p> Writing code that can take advantage of the best worlds on across Unix operating
-systems and Windows is very difficult, requiring one to understand intricate
-APIs and undocumented details from many different operating systems. There
-are several projects which have made attempts to provide an abstraction
-layer but in the author's opinion, none are completely satisfactory.
-
-<p><b>Marc Lehmann's
- <a href="http://software.schmorp.de/pkg/libev.html">libev</a> and
- <a href="http://software.schmorp.de/pkg/libeio.html">libeio</a>.</b>
- libev is the perfect minimal abstraction of the Unix I/O multiplexers. It
- includes several helpful tools like <code>ev_async</code>, which is for
- asynchronous notification, but the main piece is the <code>ev_io</code>,
- which informs the user about the state of file descriptors. As mentioned
- before, in general it is not possible to get state changes for regular
- files—and even if it were the <code>write(2)</code> and
- <code>read(2)</code> calls do not guarantee that they won't block.
- Therefore libeio is provided for calling various disk-related
- syscalls in a managed thread pool. Unfortunately the abstraction layer
- which libev targets is not appropriate for IOCPs—libev works strictly
- with file descriptors and does not the concept of a <i>socket</i>.
- Furthermore users on Unix will be using libeio for file I/O which is not
- ideal for porting to Windows. On windows libev currently uses
- <code>select()</code>—which is limited to 64 file descriptors per
- thread.
-
-<p><b><a href="http://monkey.org/~provos/libevent/">libevent</a>.</b>
- Somewhat bulkier than libev with code for RPC, DNS, and HTTP included.
- Does not support file I/O.
- libev was
- created after Lehmann <a
- href="http://www.mail-archive.com/libevent-users@monkey.org/msg00753.html">evaluated
- libevent and rejected it</a>—it's interesting to read his reasons
- why. <a
- href="http://google-opensource.blogspot.com/2010/01/libevent-20x-like-libevent-14x-only.html">A
- major rewrite</a> was done for version 2 to support Windows IOCPs but <a
- href="http://www.mail-archive.com/libevent-users@monkey.org/msg01730.html">anecdotal
- evidence</a> suggests that it is still not working correctly.
-
-<p><b><a
- href="http://www.boost.org/doc/libs/1_43_0/doc/html/boost_asio.html">Boost
- ASIO</a>.</b> It basically does what you want on Windows and Unix for
- sockets. That is, epoll on Linux, kqueue on Macintosh, IOCPs on Windows.
- It does not support file I/O. In the author's opinion is it too large
- for a not extremely difficult problem (~300 files, ~12000 semicolons).
-
-
-
-<h2>File Types</h2>
-<p>
-Almost every socket operation that you're familiar with has an
-overlapped counter-part. The following section tries to pair Windows
-overlapped I/O syscalls with non-blocking Unix ones.
-
-
-<h3>TCP Sockets</h3>
-
-TCP Sockets are by far the most important stream to get right.
-Servers should expect to be handling tens of thousands of these
-per thread, concurrently. This is possible with overlapped I/O in Windows if
-one is careful to avoid Unix-ism like file descriptors. (Windows has a
-hard limit of 2048 open file descriptors—see
-<a
- href="http://msdn.microsoft.com/en-us/library/6e3b887c.aspx"><code>_setmaxstdio()</code></a>.)
-
-
-<dl>
-
-<dt><code>send(2)</code>, <code>write(2)</code></dt>
-<dd>Windows:
-<a href="http://msdn.microsoft.com/en-us/library/ms742203(v=vs.85).aspx"><code>WSASend()</code></a>,
-<a href="http://msdn.microsoft.com/en-us/library/aa365748(v=VS.85).aspx"><code>WriteFileEx()</code></a>
-</dd>
-
-
-<dt><code>recv(2)</code>, <code>read(2)</code></dt>
-<dd>
-Windows:
-<a href="http://msdn.microsoft.com/en-us/library/ms741688(v=VS.85).aspx"><code>WSARecv()</code></a>,
-<a href="http://msdn.microsoft.com/en-us/library/aa365468(v=VS.85).aspx"><code>ReadFileEx()</code></a>
-</dd>
-
-
-<dt><code>connect(2)</code></dt>
-<dd>
-Windows: <a href="http://msdn.microsoft.com/en-us/library/ms737606(VS.85).aspx"><code>ConnectEx()</code></a>
-
-<p>
-Non-blocking <code>connect()</code> is has difficult semantics in
-Unix. The proper way to connect to a remote host is this: call
-<code>connect(2)</code> while it returns
-<code>EINPROGRESS</code> poll on the file descriptor for writablity.
-Then use
-<pre>int error;
-socklen_t len = sizeof(int);
-getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len);</pre>
-A zero <code>error</code> indicates that the connection succeeded.
-(Documented in <code>connect(2)</code> under <code>EINPROGRESS</code>
-on the Linux man page.)
-</dd>
-
-
-<dt><code>accept(2)</code></dt>
-<dd>
-Windows: <a href="http://msdn.microsoft.com/en-us/library/ms737524(v=VS.85).aspx"><code>AcceptEx()</code></a>
-</dd>
-
-
-<dt><code>sendfile(2)</code></dt>
-<dd>
-Windows: <a href="http://msdn.microsoft.com/en-us/library/ms740565(v=VS.85).aspx"><code>TransmitFile()</code></a>
-
-<p> The exact API of <code>sendfile(2)</code> on Unix has not been agreed
-on yet. Each operating system does it slightly different. All
-<code>sendfile(2)</code> implementations (except possibly FreeBSD?) are blocking
-even on non-blocking sockets.
-<ul>
-<li><a href="http://www.kernel.org/doc/man-pages/online/pages/man2/sendfile.2.html">Linux <code>sendfile(2)</code></a>
-<li><a href="http://www.freebsd.org/cgi/man.cgi?query=sendfile&sektion=2">FreeBSD <code>sendfile(2)</code></a>
-<li><a href="http://www.manpagez.com/man/2/sendfile/">Darwin <code>sendfile(2)</code></a>
-</ul>
-Marc Lehmann has written <a
- href="https://github.com/joyent/node/blob/2c185a9dfd3be8e718858b946333c433c375c295/deps/libeio/eio.c#L954-1080">a
- portable version in libeio</a>.
-</dd>
-
-<dt><code>shutdown(2)</code>, graceful close, half-duplex connections</dt>
-<dd>
-<a
- href="http://msdn.microsoft.com/en-us/library/ms738547(v=VS.85).aspx">Graceful
- Shutdown, Linger Options, and Socket Closure</a>
-<br/>
-<a
- href="http://msdn.microsoft.com/en-us/library/ms737757(VS.85).aspx"><code>DisconnectEx()</code></a>
-
-</dd>
-
-<dt><code>close(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/ms737582(v=VS.85).aspx"><code>closesocket()</code></a>
-</dd>
-
-
-The following are nearly same in Windows overlapped and Unix
-non-blocking sockets. The only difference is that the Unix variants
-take integer file descriptors while Windows uses <code>SOCKET</code>.
-<ul>
- <li><a href="http://msdn.microsoft.com/en-us/library/ms740496(v=VS.85).aspx"><code>sockaddr</code></a>
- <li><a href="http://msdn.microsoft.com/en-us/library/ms737550(v=VS.85).aspx"><code>bind()</code></a>
- <li><a href="http://msdn.microsoft.com/en-us/library/ms738543(v=VS.85).aspx"><code>getsockname()</code></a>
-</ul>
-
-<h3>Named Pipes</h3>
-
-Windows has "named pipes" which are more or less the same as <a
- href="http://www.kernel.org/doc/man-pages/online/pages/man7/unix.7.html"><code>AF_Unix</code>
- domain sockets</a>. <code>AF_Unix</code> sockets exist in the file system
-often looking like
-<pre>/tmp/<i>pipename</i></pre>
-
-Windows named pipes have a path, but they are not directly part of the file
-system; instead they look like
-
-<pre>\\.\pipe\<i>pipename</i></pre>
-
-
-<dl>
-<dt><code>socket(AF_Unix, SOCK_STREAM, 0), bind(2), listen(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/aa365150(VS.85).aspx"><code>CreateNamedPipe()</code></a>
-
-<p>Use <code>FILE_FLAG_OVERLAPPED</code>, <code>PIPE_TYPE_BYTE</code>,
-<code>PIPE_NOWAIT</code>.
-</dd>
-
-
-<dt><code>send(2)</code>, <code>write(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/aa365748(v=VS.85).aspx"><code>WriteFileEx()</code></a>
-</dd>
-
-
-<dt><code>recv(2)</code>, <code>read(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/aa365468(v=VS.85).aspx"><code>ReadFileEx()</code></a>
-</dd>
-
-<dt><code>connect(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/aa365150(VS.85).aspx"><code>CreateNamedPipe()</code></a>
-</dd>
-
-
-<dt><code>accept(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/aa365146(v=VS.85).aspx"><code>ConnectNamedPipe()</code></a>
-</dd>
-
-
-</dl>
-
-Examples:
-<ul>
-<li><a
- href="http://msdn.microsoft.com/en-us/library/aa365601(v=VS.85).aspx">Named
- Pipe Server Using Completion Routines</a>
-<li><a
- href="http://msdn.microsoft.com/en-us/library/aa365603(v=VS.85).aspx">Named
- Pipe Server Using Overlapped I/O</a>
-</ul>
-
-
-<h3>Regular Files</h3>
-
-<p>
-In Unix file system files are not able to use non-blocking I/O. There are
-some operating systems that have asynchronous I/O but it is not standard and
-at least on Linux is done with pthreads in GNU libc. For this reason
-applications designed to be portable across different Unixes must manage a
-thread pool for issuing file I/O syscalls.
-
-<p>
-The situation is better in Windows: true overlapped I/O is available when
-reading or writing a stream of data to a file.
-
-<dl>
-
-<dt><code>write(2)</code></dt>
-<dd> Windows:
-<a href="http://msdn.microsoft.com/en-us/library/aa365748(v=VS.85).aspx"><code>WriteFileEx()</code></a>
-
-<p>Solaris's event completion ports has true in-kernel async writes with <a
- href="http://download.oracle.com/docs/cd/E19253-01/816-5171/aio-write-3rt/index.html">aio_write(3RT)</a>
-</dd>
-
-<dt><code>read(2)</code></dt>
-<dd> Windows:
-<a href="http://msdn.microsoft.com/en-us/library/aa365468(v=VS.85).aspx"><code>ReadFileEx()</code></a>
-
-<p>Solaris's event completion ports has true in-kernel async reads with <a
- href="http://download.oracle.com/docs/cd/E19253-01/816-5171/aio-read-3rt/index.html">aio_read(3RT)</a>
-</dd>
-
-</dl>
-
-<h3>Console/TTY</h3>
-
-<p>It is (usually?) possible to poll a Unix TTY file descriptor for
-readability or writablity just like a TCP socket—this is very helpful
-and nice. In Windows the situation is worse, not only is it a completely
-different API but there are not overlapped versions to read and write to the
-TTY. Polling for readability can be accomplished by waiting in another
-thread with <a
- href="http://msdn.microsoft.com/en-us/library/ms685061(VS.85).aspx"><code>RegisterWaitForSingleObject()</code></a>.
-
-<dl>
-
-<dt><code>read(2)</code></dt>
-<dd>
-<a
-href="http://msdn.microsoft.com/en-us/library/ms684958(v=VS.85).aspx"><code>ReadConsole()</code></a>
-and
-<a
-href="http://msdn.microsoft.com/en-us/library/ms684961(v=VS.85).aspx"><code>ReadConsoleInput()</code></a>
-do not support overlapped I/O and there are no overlapped
-counter-parts. One strategy to get around this is
-<pre><a href="http://msdn.microsoft.com/en-us/library/ms685061(VS.85).aspx">RegisterWaitForSingleObject</a>(&tty_wait_handle, tty_handle,
- tty_want_poll, NULL, INFINITE, WT_EXECUTEINWAITTHREAD |
- WT_EXECUTEONLYONCE)</pre>
-which will execute <code>tty_want_poll()</code> in a different thread.
-You can use this to notify the calling thread that
-<code>ReadConsoleInput()</code> will not block.
-</dd>
-
-
-<dt><code>write(2)</code></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/ms687401(v=VS.85).aspx"><code>WriteConsole()</code></a>
-is also blocking but this is probably acceptable.
-</dd>
-
-
-<dt><a
- href="http://www.kernel.org/doc/man-pages/online/pages/man3/tcsetattr.3.html"><code>tcsetattr(3)</code></a></dt>
-<dd>
-<a href="http://msdn.microsoft.com/en-us/library/ms686033(VS.85).aspx"><code>SetConsoleMode()</code></a>
-</dd>
-
-
-</dl>
-
-
-
-<h2>Assorted Links</h2>
-<p>
-tips
-<ul>
-<li> overlapped = non-blocking.
-<li> There is no overlapped <a href="http://msdn.microsoft.com/en-us/library/ms738518(VS.85).aspx"><code>GetAddrInfoEx()</code></a> function. It seems Asynchronous Procedure Calls must be used instead.
-<li> <a href=http://msdn.microsoft.com/en-us/library/ms740673(VS.85).aspx"><code>Windows Sockets 2</code></a>
-</ul>
-
-<p>
-IOCP:
-<ul>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms686358(v=vs.85).aspx">Synchronization and Overlapped Input and Output</a>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms741665(v=VS.85).aspx"><code>OVERLAPPED</code> Structure</a>
- <ul>
- <li><a href="http://msdn.microsoft.com/en-us/library/ms683209(v=VS.85).aspx"><code>GetOverlappedResult()</code></a>
- <li><a href="http://msdn.microsoft.com/en-us/library/ms683244(v=VS.85).aspx"><code>HasOverlappedIoCompleted()</code></a>
- <li><a href="http://msdn.microsoft.com/en-us/library/aa363792(v=vs.85).aspx"><code>CancelIoEx()</code></a>
- — cancels an overlapped operation.
- </ul>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms742203(v=vs.85).aspx"><code>WSASend()</code></a>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms741688(v=VS.85).aspx"><code>WSARecv()</code></a>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms737606(VS.85).aspx"><code>ConnectEx()</code></a>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms740565(v=VS.85).aspx"><code>TransmitFile()</code></a>
-— an async <code>sendfile()</code> for windows.
-<li><a href="http://msdn.microsoft.com/en-us/library/ms741565(v=VS.85).aspx"><code>WSADuplicateSocket()</code></a>
-— describes how to share a socket between two processes.
-<li id="setmaxstdio"><a href="http://msdn.microsoft.com/en-us/library/6e3b887c.aspx"><code>_setmaxstdio()</code></a>
-— something like setting the maximum number of file decriptors
-and <a
- href="http://www.kernel.org/doc/man-pages/online/pages/man2/setrlimit.2.html"><code>setrlimit(3)</code></a>
-AKA <code>ulimit -n</code>. Note the file descriptor limit on windows is
-2048.
-</ul>
-
-<p>
-APC:
-<ul>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms681951(v=vs.85).aspx">Asynchronous Procedure Calls</a>
-<li><a href="http://msdn.microsoft.com/en-us/library/ms682016"><code>DNSQuery()</code></a>
-— General purpose DNS query function like <code>res_query()</code> on Unix.
-</ul>
-
-
-Pipes:
-<ul>
-<li><a href="http://msdn.microsoft.com/en-us/library/aa365781(v=VS.85).aspx"><code>Pipe functions</code></a>
-<li><a href="http://msdn.microsoft.com/en-us/library/aa365150(VS.85).aspx"><code>CreateNamedPipe</code></a>
-<li><a href="http://msdn.microsoft.com/en-us/library/aa365144(v=VS.85).aspx"><code>CallNamedPipe</code></a>
-— like <code>accept</code> is for Unix pipes.
-<li><a href="http://msdn.microsoft.com/en-us/library/aa365146(v=VS.85).aspx"><code>ConnectNamedPipe</code></a>
-</ul>
-
-<code>WaitForMultipleObjectsEx</code> is pronounced "wait for multiple object sex".
-
-Also useful:
-<a
- href="http://msdn.microsoft.com/en-us/library/xw1ew2f8(v=vs.80).aspx">Introduction
- to Visual C++ for Unix Users</a>
-
-<br><br>
-<a
- href="http://ebookbrowse.com/network-programming-for-microsoft-windows-2nd-edition-2002-pdf-d73663829">Network
- Programming For Microsoft Windows 2nd Edition 2002</a>. Juicy details on
-page 119.
-
-</body></html>
+++ /dev/null
-
-/*
- * Copyright (C) Igor Sysoev
- */
-
-
-#ifndef _NGX_QUEUE_H_INCLUDED_
-#define _NGX_QUEUE_H_INCLUDED_
-
-
-typedef struct ngx_queue_s ngx_queue_t;
-
-struct ngx_queue_s {
- ngx_queue_t *prev;
- ngx_queue_t *next;
-};
-
-
-#define ngx_queue_init(q) \
- (q)->prev = q; \
- (q)->next = q
-
-
-#define ngx_queue_empty(h) \
- (h == (h)->prev)
-
-
-#define ngx_queue_insert_head(h, x) \
- (x)->next = (h)->next; \
- (x)->next->prev = x; \
- (x)->prev = h; \
- (h)->next = x
-
-
-#define ngx_queue_insert_after ngx_queue_insert_head
-
-
-#define ngx_queue_insert_tail(h, x) \
- (x)->prev = (h)->prev; \
- (x)->prev->next = x; \
- (x)->next = h; \
- (h)->prev = x
-
-
-#define ngx_queue_head(h) \
- (h)->next
-
-
-#define ngx_queue_last(h) \
- (h)->prev
-
-
-#define ngx_queue_sentinel(h) \
- (h)
-
-
-#define ngx_queue_next(q) \
- (q)->next
-
-
-#define ngx_queue_prev(q) \
- (q)->prev
-
-
-#if (NGX_DEBUG)
-
-#define ngx_queue_remove(x) \
- (x)->next->prev = (x)->prev; \
- (x)->prev->next = (x)->next; \
- (x)->prev = NULL; \
- (x)->next = NULL
-
-#else
-
-#define ngx_queue_remove(x) \
- (x)->next->prev = (x)->prev; \
- (x)->prev->next = (x)->next
-
-#endif
-
-
-#define ngx_queue_split(h, q, n) \
- (n)->prev = (h)->prev; \
- (n)->prev->next = n; \
- (n)->next = q; \
- (h)->prev = (q)->prev; \
- (h)->prev->next = h; \
- (q)->prev = n;
-
-
-#define ngx_queue_add(h, n) \
- (h)->prev->next = (n)->next; \
- (n)->next->prev = (h)->prev; \
- (h)->prev = (n)->prev; \
- (h)->prev->next = h;
-
-
-#define ngx_queue_data(q, type, link) \
- (type *) ((unsigned char *) q - offsetof(type, link))
-
-
-#endif /* _NGX_QUEUE_H_INCLUDED_ */
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
*/
#include "task.h"
-#include "../uv.h"
+#include "uv.h"
#include <math.h>
#include <stdio.h>
*/
#include "task.h"
-#include "../uv.h"
+#include "uv.h"
BENCHMARK_IMPL(sizes) {
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
return 1;
}
+ /* IPv6 is optional as not all platforms support it */
r = uv_tcp_bind6(&server6, addr6);
if (r) {
- /* TODO: Error codes */
- fprintf(stderr, "Bind6 error\n");
- return 1;
+ /* show message but return OK */
+ fprintf(stderr, "IPv6 not supported\n");
+ return 0;
}
r = uv_tcp_listen(&server6, 128, on_connection);
if (r) {
/* TODO: Error codes */
- fprintf(stderr, "Listen error\n");
+ fprintf(stderr, "Listen error on IPv6\n");
return 1;
}
/* Pause the calling thread for a number of milliseconds. */
void uv_sleep(int msec) {
- usleep(msec);
+ usleep(msec * 1000);
}
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* stack.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <string.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <math.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
* IN THE SOFTWARE.
*/
-#include "../uv.h"
+#include "uv.h"
#include "task.h"
+++ /dev/null
-/*-
- * Copyright 2002 Niels Provos <provos@citi.umich.edu>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _UV_TREE_H_
-#define _UV_TREE_H_
-
-#define __unused
-
-/*
- * This file defines data structures for different types of trees:
- * splay trees and red-black trees.
- *
- * A splay tree is a self-organizing data structure. Every operation
- * on the tree causes a splay to happen. The splay moves the requested
- * node to the root of the tree and partly rebalances it.
- *
- * This has the benefit that request locality causes faster lookups as
- * the requested nodes move to the top of the tree. On the other hand,
- * every lookup causes memory writes.
- *
- * The Balance Theorem bounds the total access time for m operations
- * and n inserts on an initially empty tree as O((m + n)lg n). The
- * amortized cost for a sequence of m accesses to a splay tree is O(lg n);
- *
- * A red-black tree is a binary search tree with the node color as an
- * extra attribute. It fulfills a set of conditions:
- * - every search path from the root to a leaf consists of the
- * same number of black nodes,
- * - each red node (except for the root) has a black parent,
- * - each leaf node is black.
- *
- * Every operation on a red-black tree is bounded as O(lg n).
- * The maximum height of a red-black tree is 2lg (n+1).
- */
-
-#define SPLAY_HEAD(name, type) \
-struct name { \
- struct type *sph_root; /* root of the tree */ \
-}
-
-#define SPLAY_INITIALIZER(root) \
- { NULL }
-
-#define SPLAY_INIT(root) do { \
- (root)->sph_root = NULL; \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_ENTRY(type) \
-struct { \
- struct type *spe_left; /* left element */ \
- struct type *spe_right; /* right element */ \
-}
-
-#define SPLAY_LEFT(elm, field) (elm)->field.spe_left
-#define SPLAY_RIGHT(elm, field) (elm)->field.spe_right
-#define SPLAY_ROOT(head) (head)->sph_root
-#define SPLAY_EMPTY(head) (SPLAY_ROOT(head) == NULL)
-
-/* SPLAY_ROTATE_{LEFT,RIGHT} expect that tmp hold SPLAY_{RIGHT,LEFT} */
-#define SPLAY_ROTATE_RIGHT(head, tmp, field) do { \
- SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(tmp, field); \
- SPLAY_RIGHT(tmp, field) = (head)->sph_root; \
- (head)->sph_root = tmp; \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_ROTATE_LEFT(head, tmp, field) do { \
- SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(tmp, field); \
- SPLAY_LEFT(tmp, field) = (head)->sph_root; \
- (head)->sph_root = tmp; \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_LINKLEFT(head, tmp, field) do { \
- SPLAY_LEFT(tmp, field) = (head)->sph_root; \
- tmp = (head)->sph_root; \
- (head)->sph_root = SPLAY_LEFT((head)->sph_root, field); \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_LINKRIGHT(head, tmp, field) do { \
- SPLAY_RIGHT(tmp, field) = (head)->sph_root; \
- tmp = (head)->sph_root; \
- (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field); \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_ASSEMBLE(head, node, left, right, field) do { \
- SPLAY_RIGHT(left, field) = SPLAY_LEFT((head)->sph_root, field); \
- SPLAY_LEFT(right, field) = SPLAY_RIGHT((head)->sph_root, field); \
- SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(node, field); \
- SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(node, field); \
-} while (/*CONSTCOND*/ 0)
-
-/* Generates prototypes and inline functions */
-
-#define SPLAY_PROTOTYPE(name, type, field, cmp) \
-void name##_SPLAY(struct name *, struct type *); \
-void name##_SPLAY_MINMAX(struct name *, int); \
-struct type *name##_SPLAY_INSERT(struct name *, struct type *); \
-struct type *name##_SPLAY_REMOVE(struct name *, struct type *); \
- \
-/* Finds the node with the same key as elm */ \
-static __inline struct type * \
-name##_SPLAY_FIND(struct name *head, struct type *elm) \
-{ \
- if (SPLAY_EMPTY(head)) \
- return(NULL); \
- name##_SPLAY(head, elm); \
- if ((cmp)(elm, (head)->sph_root) == 0) \
- return (head->sph_root); \
- return (NULL); \
-} \
- \
-static __inline struct type * \
-name##_SPLAY_NEXT(struct name *head, struct type *elm) \
-{ \
- name##_SPLAY(head, elm); \
- if (SPLAY_RIGHT(elm, field) != NULL) { \
- elm = SPLAY_RIGHT(elm, field); \
- while (SPLAY_LEFT(elm, field) != NULL) { \
- elm = SPLAY_LEFT(elm, field); \
- } \
- } else \
- elm = NULL; \
- return (elm); \
-} \
- \
-static __inline struct type * \
-name##_SPLAY_MIN_MAX(struct name *head, int val) \
-{ \
- name##_SPLAY_MINMAX(head, val); \
- return (SPLAY_ROOT(head)); \
-}
-
-/* Main splay operation.
- * Moves node close to the key of elm to top
- */
-#define SPLAY_GENERATE(name, type, field, cmp) \
-struct type * \
-name##_SPLAY_INSERT(struct name *head, struct type *elm) \
-{ \
- if (SPLAY_EMPTY(head)) { \
- SPLAY_LEFT(elm, field) = SPLAY_RIGHT(elm, field) = NULL; \
- } else { \
- int __comp; \
- name##_SPLAY(head, elm); \
- __comp = (cmp)(elm, (head)->sph_root); \
- if(__comp < 0) { \
- SPLAY_LEFT(elm, field) = SPLAY_LEFT((head)->sph_root, field); \
- SPLAY_RIGHT(elm, field) = (head)->sph_root; \
- SPLAY_LEFT((head)->sph_root, field) = NULL; \
- } else if (__comp > 0) { \
- SPLAY_RIGHT(elm, field) = SPLAY_RIGHT((head)->sph_root, field); \
- SPLAY_LEFT(elm, field) = (head)->sph_root; \
- SPLAY_RIGHT((head)->sph_root, field) = NULL; \
- } else \
- return ((head)->sph_root); \
- } \
- (head)->sph_root = (elm); \
- return (NULL); \
-} \
- \
-struct type * \
-name##_SPLAY_REMOVE(struct name *head, struct type *elm) \
-{ \
- struct type *__tmp; \
- if (SPLAY_EMPTY(head)) \
- return (NULL); \
- name##_SPLAY(head, elm); \
- if ((cmp)(elm, (head)->sph_root) == 0) { \
- if (SPLAY_LEFT((head)->sph_root, field) == NULL) { \
- (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field); \
- } else { \
- __tmp = SPLAY_RIGHT((head)->sph_root, field); \
- (head)->sph_root = SPLAY_LEFT((head)->sph_root, field); \
- name##_SPLAY(head, elm); \
- SPLAY_RIGHT((head)->sph_root, field) = __tmp; \
- } \
- return (elm); \
- } \
- return (NULL); \
-} \
- \
-void \
-name##_SPLAY(struct name *head, struct type *elm) \
-{ \
- struct type __node, *__left, *__right, *__tmp; \
- int __comp; \
- \
- SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL; \
- __left = __right = &__node; \
- \
- while ((__comp = (cmp)(elm, (head)->sph_root)) != 0) { \
- if (__comp < 0) { \
- __tmp = SPLAY_LEFT((head)->sph_root, field); \
- if (__tmp == NULL) \
- break; \
- if ((cmp)(elm, __tmp) < 0){ \
- SPLAY_ROTATE_RIGHT(head, __tmp, field); \
- if (SPLAY_LEFT((head)->sph_root, field) == NULL) \
- break; \
- } \
- SPLAY_LINKLEFT(head, __right, field); \
- } else if (__comp > 0) { \
- __tmp = SPLAY_RIGHT((head)->sph_root, field); \
- if (__tmp == NULL) \
- break; \
- if ((cmp)(elm, __tmp) > 0){ \
- SPLAY_ROTATE_LEFT(head, __tmp, field); \
- if (SPLAY_RIGHT((head)->sph_root, field) == NULL) \
- break; \
- } \
- SPLAY_LINKRIGHT(head, __left, field); \
- } \
- } \
- SPLAY_ASSEMBLE(head, &__node, __left, __right, field); \
-} \
- \
-/* Splay with either the minimum or the maximum element \
- * Used to find minimum or maximum element in tree. \
- */ \
-void name##_SPLAY_MINMAX(struct name *head, int __comp) \
-{ \
- struct type __node, *__left, *__right, *__tmp; \
- \
- SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL; \
- __left = __right = &__node; \
- \
- while (1) { \
- if (__comp < 0) { \
- __tmp = SPLAY_LEFT((head)->sph_root, field); \
- if (__tmp == NULL) \
- break; \
- if (__comp < 0){ \
- SPLAY_ROTATE_RIGHT(head, __tmp, field); \
- if (SPLAY_LEFT((head)->sph_root, field) == NULL) \
- break; \
- } \
- SPLAY_LINKLEFT(head, __right, field); \
- } else if (__comp > 0) { \
- __tmp = SPLAY_RIGHT((head)->sph_root, field); \
- if (__tmp == NULL) \
- break; \
- if (__comp > 0) { \
- SPLAY_ROTATE_LEFT(head, __tmp, field); \
- if (SPLAY_RIGHT((head)->sph_root, field) == NULL) \
- break; \
- } \
- SPLAY_LINKRIGHT(head, __left, field); \
- } \
- } \
- SPLAY_ASSEMBLE(head, &__node, __left, __right, field); \
-}
-
-#define SPLAY_NEGINF -1
-#define SPLAY_INF 1
-
-#define SPLAY_INSERT(name, x, y) name##_SPLAY_INSERT(x, y)
-#define SPLAY_REMOVE(name, x, y) name##_SPLAY_REMOVE(x, y)
-#define SPLAY_FIND(name, x, y) name##_SPLAY_FIND(x, y)
-#define SPLAY_NEXT(name, x, y) name##_SPLAY_NEXT(x, y)
-#define SPLAY_MIN(name, x) (SPLAY_EMPTY(x) ? NULL \
- : name##_SPLAY_MIN_MAX(x, SPLAY_NEGINF))
-#define SPLAY_MAX(name, x) (SPLAY_EMPTY(x) ? NULL \
- : name##_SPLAY_MIN_MAX(x, SPLAY_INF))
-
-#define SPLAY_FOREACH(x, name, head) \
- for ((x) = SPLAY_MIN(name, head); \
- (x) != NULL; \
- (x) = SPLAY_NEXT(name, head, x))
-
-/* Macros that define a red-black tree */
-#define RB_HEAD(name, type) \
-struct name { \
- struct type *rbh_root; /* root of the tree */ \
-}
-
-#define RB_INITIALIZER(root) \
- { NULL }
-
-#define RB_INIT(root) do { \
- (root)->rbh_root = NULL; \
-} while (/*CONSTCOND*/ 0)
-
-#define RB_BLACK 0
-#define RB_RED 1
-#define RB_ENTRY(type) \
-struct { \
- struct type *rbe_left; /* left element */ \
- struct type *rbe_right; /* right element */ \
- struct type *rbe_parent; /* parent element */ \
- int rbe_color; /* node color */ \
-}
-
-#define RB_LEFT(elm, field) (elm)->field.rbe_left
-#define RB_RIGHT(elm, field) (elm)->field.rbe_right
-#define RB_PARENT(elm, field) (elm)->field.rbe_parent
-#define RB_COLOR(elm, field) (elm)->field.rbe_color
-#define RB_ROOT(head) (head)->rbh_root
-#define RB_EMPTY(head) (RB_ROOT(head) == NULL)
-
-#define RB_SET(elm, parent, field) do { \
- RB_PARENT(elm, field) = parent; \
- RB_LEFT(elm, field) = RB_RIGHT(elm, field) = NULL; \
- RB_COLOR(elm, field) = RB_RED; \
-} while (/*CONSTCOND*/ 0)
-
-#define RB_SET_BLACKRED(black, red, field) do { \
- RB_COLOR(black, field) = RB_BLACK; \
- RB_COLOR(red, field) = RB_RED; \
-} while (/*CONSTCOND*/ 0)
-
-#ifndef RB_AUGMENT
-#define RB_AUGMENT(x) do {} while (0)
-#endif
-
-#define RB_ROTATE_LEFT(head, elm, tmp, field) do { \
- (tmp) = RB_RIGHT(elm, field); \
- if ((RB_RIGHT(elm, field) = RB_LEFT(tmp, field)) != NULL) { \
- RB_PARENT(RB_LEFT(tmp, field), field) = (elm); \
- } \
- RB_AUGMENT(elm); \
- if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field)) != NULL) { \
- if ((elm) == RB_LEFT(RB_PARENT(elm, field), field)) \
- RB_LEFT(RB_PARENT(elm, field), field) = (tmp); \
- else \
- RB_RIGHT(RB_PARENT(elm, field), field) = (tmp); \
- } else \
- (head)->rbh_root = (tmp); \
- RB_LEFT(tmp, field) = (elm); \
- RB_PARENT(elm, field) = (tmp); \
- RB_AUGMENT(tmp); \
- if ((RB_PARENT(tmp, field))) \
- RB_AUGMENT(RB_PARENT(tmp, field)); \
-} while (/*CONSTCOND*/ 0)
-
-#define RB_ROTATE_RIGHT(head, elm, tmp, field) do { \
- (tmp) = RB_LEFT(elm, field); \
- if ((RB_LEFT(elm, field) = RB_RIGHT(tmp, field)) != NULL) { \
- RB_PARENT(RB_RIGHT(tmp, field), field) = (elm); \
- } \
- RB_AUGMENT(elm); \
- if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field)) != NULL) { \
- if ((elm) == RB_LEFT(RB_PARENT(elm, field), field)) \
- RB_LEFT(RB_PARENT(elm, field), field) = (tmp); \
- else \
- RB_RIGHT(RB_PARENT(elm, field), field) = (tmp); \
- } else \
- (head)->rbh_root = (tmp); \
- RB_RIGHT(tmp, field) = (elm); \
- RB_PARENT(elm, field) = (tmp); \
- RB_AUGMENT(tmp); \
- if ((RB_PARENT(tmp, field))) \
- RB_AUGMENT(RB_PARENT(tmp, field)); \
-} while (/*CONSTCOND*/ 0)
-
-/* Generates prototypes and inline functions */
-#define RB_PROTOTYPE(name, type, field, cmp) \
- RB_PROTOTYPE_INTERNAL(name, type, field, cmp,)
-#define RB_PROTOTYPE_STATIC(name, type, field, cmp) \
- RB_PROTOTYPE_INTERNAL(name, type, field, cmp, __unused static)
-#define RB_PROTOTYPE_INTERNAL(name, type, field, cmp, attr) \
-attr void name##_RB_INSERT_COLOR(struct name *, struct type *); \
-attr void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\
-attr struct type *name##_RB_REMOVE(struct name *, struct type *); \
-attr struct type *name##_RB_INSERT(struct name *, struct type *); \
-attr struct type *name##_RB_FIND(struct name *, struct type *); \
-attr struct type *name##_RB_NFIND(struct name *, struct type *); \
-attr struct type *name##_RB_NEXT(struct type *); \
-attr struct type *name##_RB_PREV(struct type *); \
-attr struct type *name##_RB_MINMAX(struct name *, int); \
- \
-
-/* Main rb operation.
- * Moves node close to the key of elm to top
- */
-#define RB_GENERATE(name, type, field, cmp) \
- RB_GENERATE_INTERNAL(name, type, field, cmp,)
-#define RB_GENERATE_STATIC(name, type, field, cmp) \
- RB_GENERATE_INTERNAL(name, type, field, cmp, __unused static)
-#define RB_GENERATE_INTERNAL(name, type, field, cmp, attr) \
-attr void \
-name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \
-{ \
- struct type *parent, *gparent, *tmp; \
- while ((parent = RB_PARENT(elm, field)) != NULL && \
- RB_COLOR(parent, field) == RB_RED) { \
- gparent = RB_PARENT(parent, field); \
- if (parent == RB_LEFT(gparent, field)) { \
- tmp = RB_RIGHT(gparent, field); \
- if (tmp && RB_COLOR(tmp, field) == RB_RED) { \
- RB_COLOR(tmp, field) = RB_BLACK; \
- RB_SET_BLACKRED(parent, gparent, field); \
- elm = gparent; \
- continue; \
- } \
- if (RB_RIGHT(parent, field) == elm) { \
- RB_ROTATE_LEFT(head, parent, tmp, field); \
- tmp = parent; \
- parent = elm; \
- elm = tmp; \
- } \
- RB_SET_BLACKRED(parent, gparent, field); \
- RB_ROTATE_RIGHT(head, gparent, tmp, field); \
- } else { \
- tmp = RB_LEFT(gparent, field); \
- if (tmp && RB_COLOR(tmp, field) == RB_RED) { \
- RB_COLOR(tmp, field) = RB_BLACK; \
- RB_SET_BLACKRED(parent, gparent, field); \
- elm = gparent; \
- continue; \
- } \
- if (RB_LEFT(parent, field) == elm) { \
- RB_ROTATE_RIGHT(head, parent, tmp, field); \
- tmp = parent; \
- parent = elm; \
- elm = tmp; \
- } \
- RB_SET_BLACKRED(parent, gparent, field); \
- RB_ROTATE_LEFT(head, gparent, tmp, field); \
- } \
- } \
- RB_COLOR(head->rbh_root, field) = RB_BLACK; \
-} \
- \
-attr void \
-name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, \
- struct type *elm) \
-{ \
- struct type *tmp; \
- while ((elm == NULL || RB_COLOR(elm, field) == RB_BLACK) && \
- elm != RB_ROOT(head)) { \
- if (RB_LEFT(parent, field) == elm) { \
- tmp = RB_RIGHT(parent, field); \
- if (RB_COLOR(tmp, field) == RB_RED) { \
- RB_SET_BLACKRED(tmp, parent, field); \
- RB_ROTATE_LEFT(head, parent, tmp, field); \
- tmp = RB_RIGHT(parent, field); \
- } \
- if ((RB_LEFT(tmp, field) == NULL || \
- RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) && \
- (RB_RIGHT(tmp, field) == NULL || \
- RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) { \
- RB_COLOR(tmp, field) = RB_RED; \
- elm = parent; \
- parent = RB_PARENT(elm, field); \
- } else { \
- if (RB_RIGHT(tmp, field) == NULL || \
- RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK) { \
- struct type *oleft; \
- if ((oleft = RB_LEFT(tmp, field)) \
- != NULL) \
- RB_COLOR(oleft, field) = RB_BLACK; \
- RB_COLOR(tmp, field) = RB_RED; \
- RB_ROTATE_RIGHT(head, tmp, oleft, field); \
- tmp = RB_RIGHT(parent, field); \
- } \
- RB_COLOR(tmp, field) = RB_COLOR(parent, field); \
- RB_COLOR(parent, field) = RB_BLACK; \
- if (RB_RIGHT(tmp, field)) \
- RB_COLOR(RB_RIGHT(tmp, field), field) = RB_BLACK; \
- RB_ROTATE_LEFT(head, parent, tmp, field); \
- elm = RB_ROOT(head); \
- break; \
- } \
- } else { \
- tmp = RB_LEFT(parent, field); \
- if (RB_COLOR(tmp, field) == RB_RED) { \
- RB_SET_BLACKRED(tmp, parent, field); \
- RB_ROTATE_RIGHT(head, parent, tmp, field); \
- tmp = RB_LEFT(parent, field); \
- } \
- if ((RB_LEFT(tmp, field) == NULL || \
- RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) && \
- (RB_RIGHT(tmp, field) == NULL || \
- RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) { \
- RB_COLOR(tmp, field) = RB_RED; \
- elm = parent; \
- parent = RB_PARENT(elm, field); \
- } else { \
- if (RB_LEFT(tmp, field) == NULL || \
- RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) { \
- struct type *oright; \
- if ((oright = RB_RIGHT(tmp, field)) \
- != NULL) \
- RB_COLOR(oright, field) = RB_BLACK; \
- RB_COLOR(tmp, field) = RB_RED; \
- RB_ROTATE_LEFT(head, tmp, oright, field); \
- tmp = RB_LEFT(parent, field); \
- } \
- RB_COLOR(tmp, field) = RB_COLOR(parent, field); \
- RB_COLOR(parent, field) = RB_BLACK; \
- if (RB_LEFT(tmp, field)) \
- RB_COLOR(RB_LEFT(tmp, field), field) = RB_BLACK; \
- RB_ROTATE_RIGHT(head, parent, tmp, field); \
- elm = RB_ROOT(head); \
- break; \
- } \
- } \
- } \
- if (elm) \
- RB_COLOR(elm, field) = RB_BLACK; \
-} \
- \
-attr struct type * \
-name##_RB_REMOVE(struct name *head, struct type *elm) \
-{ \
- struct type *child, *parent, *old = elm; \
- int color; \
- if (RB_LEFT(elm, field) == NULL) \
- child = RB_RIGHT(elm, field); \
- else if (RB_RIGHT(elm, field) == NULL) \
- child = RB_LEFT(elm, field); \
- else { \
- struct type *left; \
- elm = RB_RIGHT(elm, field); \
- while ((left = RB_LEFT(elm, field)) != NULL) \
- elm = left; \
- child = RB_RIGHT(elm, field); \
- parent = RB_PARENT(elm, field); \
- color = RB_COLOR(elm, field); \
- if (child) \
- RB_PARENT(child, field) = parent; \
- if (parent) { \
- if (RB_LEFT(parent, field) == elm) \
- RB_LEFT(parent, field) = child; \
- else \
- RB_RIGHT(parent, field) = child; \
- RB_AUGMENT(parent); \
- } else \
- RB_ROOT(head) = child; \
- if (RB_PARENT(elm, field) == old) \
- parent = elm; \
- (elm)->field = (old)->field; \
- if (RB_PARENT(old, field)) { \
- if (RB_LEFT(RB_PARENT(old, field), field) == old) \
- RB_LEFT(RB_PARENT(old, field), field) = elm; \
- else \
- RB_RIGHT(RB_PARENT(old, field), field) = elm; \
- RB_AUGMENT(RB_PARENT(old, field)); \
- } else \
- RB_ROOT(head) = elm; \
- RB_PARENT(RB_LEFT(old, field), field) = elm; \
- if (RB_RIGHT(old, field)) \
- RB_PARENT(RB_RIGHT(old, field), field) = elm; \
- if (parent) { \
- left = parent; \
- do { \
- RB_AUGMENT(left); \
- } while ((left = RB_PARENT(left, field)) != NULL); \
- } \
- goto color; \
- } \
- parent = RB_PARENT(elm, field); \
- color = RB_COLOR(elm, field); \
- if (child) \
- RB_PARENT(child, field) = parent; \
- if (parent) { \
- if (RB_LEFT(parent, field) == elm) \
- RB_LEFT(parent, field) = child; \
- else \
- RB_RIGHT(parent, field) = child; \
- RB_AUGMENT(parent); \
- } else \
- RB_ROOT(head) = child; \
-color: \
- if (color == RB_BLACK) \
- name##_RB_REMOVE_COLOR(head, parent, child); \
- return (old); \
-} \
- \
-/* Inserts a node into the RB tree */ \
-attr struct type * \
-name##_RB_INSERT(struct name *head, struct type *elm) \
-{ \
- struct type *tmp; \
- struct type *parent = NULL; \
- int comp = 0; \
- tmp = RB_ROOT(head); \
- while (tmp) { \
- parent = tmp; \
- comp = (cmp)(elm, parent); \
- if (comp < 0) \
- tmp = RB_LEFT(tmp, field); \
- else if (comp > 0) \
- tmp = RB_RIGHT(tmp, field); \
- else \
- return (tmp); \
- } \
- RB_SET(elm, parent, field); \
- if (parent != NULL) { \
- if (comp < 0) \
- RB_LEFT(parent, field) = elm; \
- else \
- RB_RIGHT(parent, field) = elm; \
- RB_AUGMENT(parent); \
- } else \
- RB_ROOT(head) = elm; \
- name##_RB_INSERT_COLOR(head, elm); \
- return (NULL); \
-} \
- \
-/* Finds the node with the same key as elm */ \
-attr struct type * \
-name##_RB_FIND(struct name *head, struct type *elm) \
-{ \
- struct type *tmp = RB_ROOT(head); \
- int comp; \
- while (tmp) { \
- comp = cmp(elm, tmp); \
- if (comp < 0) \
- tmp = RB_LEFT(tmp, field); \
- else if (comp > 0) \
- tmp = RB_RIGHT(tmp, field); \
- else \
- return (tmp); \
- } \
- return (NULL); \
-} \
- \
-/* Finds the first node greater than or equal to the search key */ \
-attr struct type * \
-name##_RB_NFIND(struct name *head, struct type *elm) \
-{ \
- struct type *tmp = RB_ROOT(head); \
- struct type *res = NULL; \
- int comp; \
- while (tmp) { \
- comp = cmp(elm, tmp); \
- if (comp < 0) { \
- res = tmp; \
- tmp = RB_LEFT(tmp, field); \
- } \
- else if (comp > 0) \
- tmp = RB_RIGHT(tmp, field); \
- else \
- return (tmp); \
- } \
- return (res); \
-} \
- \
-/* ARGSUSED */ \
-attr struct type * \
-name##_RB_NEXT(struct type *elm) \
-{ \
- if (RB_RIGHT(elm, field)) { \
- elm = RB_RIGHT(elm, field); \
- while (RB_LEFT(elm, field)) \
- elm = RB_LEFT(elm, field); \
- } else { \
- if (RB_PARENT(elm, field) && \
- (elm == RB_LEFT(RB_PARENT(elm, field), field))) \
- elm = RB_PARENT(elm, field); \
- else { \
- while (RB_PARENT(elm, field) && \
- (elm == RB_RIGHT(RB_PARENT(elm, field), field))) \
- elm = RB_PARENT(elm, field); \
- elm = RB_PARENT(elm, field); \
- } \
- } \
- return (elm); \
-} \
- \
-/* ARGSUSED */ \
-attr struct type * \
-name##_RB_PREV(struct type *elm) \
-{ \
- if (RB_LEFT(elm, field)) { \
- elm = RB_LEFT(elm, field); \
- while (RB_RIGHT(elm, field)) \
- elm = RB_RIGHT(elm, field); \
- } else { \
- if (RB_PARENT(elm, field) && \
- (elm == RB_RIGHT(RB_PARENT(elm, field), field))) \
- elm = RB_PARENT(elm, field); \
- else { \
- while (RB_PARENT(elm, field) && \
- (elm == RB_LEFT(RB_PARENT(elm, field), field))) \
- elm = RB_PARENT(elm, field); \
- elm = RB_PARENT(elm, field); \
- } \
- } \
- return (elm); \
-} \
- \
-attr struct type * \
-name##_RB_MINMAX(struct name *head, int val) \
-{ \
- struct type *tmp = RB_ROOT(head); \
- struct type *parent = NULL; \
- while (tmp) { \
- parent = tmp; \
- if (val < 0) \
- tmp = RB_LEFT(tmp, field); \
- else \
- tmp = RB_RIGHT(tmp, field); \
- } \
- return (parent); \
-}
-
-#define RB_NEGINF -1
-#define RB_INF 1
-
-#define RB_INSERT(name, x, y) name##_RB_INSERT(x, y)
-#define RB_REMOVE(name, x, y) name##_RB_REMOVE(x, y)
-#define RB_FIND(name, x, y) name##_RB_FIND(x, y)
-#define RB_NFIND(name, x, y) name##_RB_NFIND(x, y)
-#define RB_NEXT(name, x, y) name##_RB_NEXT(y)
-#define RB_PREV(name, x, y) name##_RB_PREV(y)
-#define RB_MIN(name, x) name##_RB_MINMAX(x, RB_NEGINF)
-#define RB_MAX(name, x) name##_RB_MINMAX(x, RB_INF)
-
-#define RB_FOREACH(x, name, head) \
- for ((x) = RB_MIN(name, head); \
- (x) != NULL; \
- (x) = name##_RB_NEXT(x))
-
-#define RB_FOREACH_FROM(x, name, y) \
- for ((x) = (y); \
- ((x) != NULL) && ((y) = name##_RB_NEXT(x), (x) != NULL); \
- (x) = (y))
-
-#define RB_FOREACH_SAFE(x, name, head, y) \
- for ((x) = RB_MIN(name, head); \
- ((x) != NULL) && ((y) = name##_RB_NEXT(x), (x) != NULL); \
- (x) = (y))
-
-#define RB_FOREACH_REVERSE(x, name, head) \
- for ((x) = RB_MAX(name, head); \
- (x) != NULL; \
- (x) = name##_RB_PREV(x))
-
-#define RB_FOREACH_REVERSE_FROM(x, name, y) \
- for ((x) = (y); \
- ((x) != NULL) && ((y) = name##_RB_PREV(x), (x) != NULL); \
- (x) = (y))
-
-#define RB_FOREACH_REVERSE_SAFE(x, name, head, y) \
- for ((x) = RB_MAX(name, head); \
- ((x) != NULL) && ((y) = name##_RB_PREV(x), (x) != NULL); \
- (x) = (y))
-
-#endif /* _UV_TREE_H_ */
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-#include "uv-common.h"
-
-#include <assert.h>
-#include <stddef.h> /* NULL */
-#include <string.h> /* memset */
-
-/* use inet_pton from c-ares if necessary */
-#include "ares_config.h"
-#include "c-ares/inet_net_pton.h"
-
-/* list used for ares task handles */
-static uv_ares_task_t* uv_ares_handles_ = NULL;
-
-
-static uv_counters_t counters;
-
-
-uv_counters_t* uv_counters() {
- return &counters;
-}
-
-
-const char* uv_err_name(uv_err_t err) {
- switch (err.code) {
- case UV_UNKNOWN: return "UNKNOWN";
- case UV_OK: return "OK";
- case UV_EOF: return "EOF";
- case UV_EACCESS: return "EACCESS";
- case UV_EAGAIN: return "EAGAIN";
- case UV_EADDRINUSE: return "EADDRINUSE";
- case UV_EADDRNOTAVAIL: return "EADDRNOTAVAIL";
- case UV_EAFNOSUPPORT: return "EAFNOSUPPORT";
- case UV_EALREADY: return "EALREADY";
- case UV_EBADF: return "EBADF";
- case UV_EBUSY: return "EBUSY";
- case UV_ECONNABORTED: return "ECONNABORTED";
- case UV_ECONNREFUSED: return "ECONNREFUSED";
- case UV_ECONNRESET: return "ECONNRESET";
- case UV_EDESTADDRREQ: return "EDESTADDRREQ";
- case UV_EFAULT: return "EFAULT";
- case UV_EHOSTUNREACH: return "EHOSTUNREACH";
- case UV_EINTR: return "EINTR";
- case UV_EINVAL: return "EINVAL";
- case UV_EISCONN: return "EISCONN";
- case UV_EMFILE: return "EMFILE";
- case UV_ENETDOWN: return "ENETDOWN";
- case UV_ENETUNREACH: return "ENETUNREACH";
- case UV_ENFILE: return "ENFILE";
- case UV_ENOBUFS: return "ENOBUFS";
- case UV_ENOMEM: return "ENOMEM";
- case UV_ENONET: return "ENONET";
- case UV_ENOPROTOOPT: return "ENOPROTOOPT";
- case UV_ENOTCONN: return "ENOTCONN";
- case UV_ENOTSOCK: return "ENOTSOCK";
- case UV_ENOTSUP: return "ENOTSUP";
- case UV_EPROTO: return "EPROTO";
- case UV_EPROTONOSUPPORT: return "EPROTONOSUPPORT";
- case UV_EPROTOTYPE: return "EPROTOTYPE";
- case UV_ETIMEDOUT: return "ETIMEDOUT";
- default:
- assert(0);
- return NULL;
- }
-}
-
-
-struct sockaddr_in uv_ip4_addr(const char* ip, int port) {
- struct sockaddr_in addr;
-
- memset(&addr, 0, sizeof(struct sockaddr_in));
-
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- addr.sin_addr.s_addr = inet_addr(ip);
-
- return addr;
-}
-
-
-struct sockaddr_in6 uv_ip6_addr(const char* ip, int port) {
- struct sockaddr_in6 addr;
-
- memset(&addr, 0, sizeof(struct sockaddr_in6));
-
- addr.sin6_family = AF_INET6;
- addr.sin6_port = htons(port);
- ares_inet_pton(AF_INET6, ip, &addr.sin6_addr);
-
- return addr;
-}
-
-
-/* find matching ares handle in list */
-void uv_add_ares_handle(uv_ares_task_t* handle) {
- handle->ares_next = uv_ares_handles_;
- handle->ares_prev = NULL;
-
- if (uv_ares_handles_) {
- uv_ares_handles_->ares_prev = handle;
- }
- uv_ares_handles_ = handle;
-}
-
-/* find matching ares handle in list */
-/* TODO: faster lookup */
-uv_ares_task_t* uv_find_ares_handle(ares_socket_t sock) {
- uv_ares_task_t* handle = uv_ares_handles_;
- while (handle != NULL) {
- if (handle->sock == sock) {
- break;
- }
- handle = handle->ares_next;
- }
-
- return handle;
-}
-
-/* remove ares handle in list */
-void uv_remove_ares_handle(uv_ares_task_t* handle) {
- if (handle == uv_ares_handles_) {
- uv_ares_handles_ = handle->ares_next;
- }
-
- if (handle->ares_next) {
- handle->ares_next->ares_prev = handle->ares_prev;
- }
-
- if (handle->ares_prev) {
- handle->ares_prev->ares_next = handle->ares_next;
- }
-}
-
-
-/* Returns 1 if the uv_ares_handles_ list is empty. 0 otherwise. */
-int uv_ares_handles_empty() {
- return uv_ares_handles_ ? 0 : 1;
-}
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-/*
- * This file is private to libuv. It provides common functionality to both
- * Windows and Unix backends.
- */
-
-#ifndef UV_COMMON_H_
-#define UV_COMMON_H_
-
-#include "uv.h"
-
-/*
- * Subclass of uv_handle_t. Used for integration of c-ares.
- */
-typedef struct uv_ares_task_s uv_ares_task_t;
-
-struct uv_ares_task_s {
- UV_HANDLE_FIELDS
- UV_ARES_TASK_PRIVATE_FIELDS
- uv_ares_task_t* ares_prev;
- uv_ares_task_t* ares_next;
-};
-
-
-void uv_remove_ares_handle(uv_ares_task_t* handle);
-uv_ares_task_t* uv_find_ares_handle(ares_socket_t sock);
-void uv_add_ares_handle(uv_ares_task_t* handle);
-int uv_ares_handles_empty();
-
-
-#endif /* UV_COMMON_H_ */
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-
-#include <stdint.h>
-#include <stddef.h>
-#include <time.h>
-
-#undef NANOSEC
-#define NANOSEC 1000000000
-
-
-uint64_t uv_hrtime() {
- struct timespec ts;
- clock_gettime(CLOCK_MONOTONIC, &ts);
- return (ts.tv_sec * NANOSEC + ts.tv_nsec);
-}
-
-
-int uv_exepath(char* buffer, size_t* size) {
- uint32_t usize;
- int result;
- char* path;
- char* fullpath;
-
- if (!buffer || !size) {
- return -1;
- }
-
- *size = readlink("/proc/self/exe", buffer, *size - 1);
- if (*size <= 0) return -1;
- buffer[*size] = '\0';
- return 0;
-}
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-
-#include <stdint.h>
-#include <CoreServices/CoreServices.h>
-#include <mach/mach.h>
-#include <mach/mach_time.h>
-
-
-uint64_t uv_hrtime() {
- uint64_t time;
- Nanoseconds enano;
- time = mach_absolute_time();
- enano = AbsoluteToNanoseconds(*(AbsoluteTime *)&time);
- return (*(uint64_t *)&enano);
-}
-
-
-int uv_exepath(char* buffer, size_t* size) {
- uint32_t usize;
- int result;
- char* path;
- char* fullpath;
-
- if (!buffer || !size) {
- return -1;
- }
-
- usize = *size;
- result = _NSGetExecutablePath(buffer, &usize);
- if (result) return result;
-
- path = (char*)malloc(2 * PATH_MAX);
- fullpath = realpath(buffer, path);
-
- if (fullpath == NULL) {
- free(path);
- return -1;
- }
-
- strncpy(buffer, fullpath, *size);
- free(fullpath);
- *size = strlen(buffer);
- return 0;
-}
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-/* This file integrates the libuv event loop with the libeio thread pool */
-
-#include "uv.h"
-#include "eio.h"
-#include <assert.h>
-
-
-static uv_async_t uv_eio_want_poll_notifier;
-static uv_async_t uv_eio_done_poll_notifier;
-static uv_idle_t uv_eio_poller;
-static int uv_eio_init_count;
-
-
-static void uv_eio_do_poll(uv_idle_t* watcher, int status) {
- assert(watcher == &uv_eio_poller);
-
- /* printf("uv_eio_poller\n"); */
-
- if (eio_poll() != -1 && uv_is_active((uv_handle_t*) &uv_eio_poller)) {
- /* printf("uv_eio_poller stop\n"); */
- uv_idle_stop(&uv_eio_poller);
- uv_unref();
- }
-}
-
-
-/* Called from the main thread. */
-static void uv_eio_want_poll_notifier_cb(uv_async_t* watcher, int status) {
- assert(watcher == &uv_eio_want_poll_notifier);
-
- /* printf("want poll notifier\n"); */
-
- if (eio_poll() == -1 && !uv_is_active((uv_handle_t*) &uv_eio_poller)) {
- /* printf("uv_eio_poller start\n"); */
- uv_idle_start(&uv_eio_poller, uv_eio_do_poll);
- uv_ref();
- }
-}
-
-
-static void uv_eio_done_poll_notifier_cb(uv_async_t* watcher, int revents) {
- assert(watcher == &uv_eio_done_poll_notifier);
-
- /* printf("done poll notifier\n"); */
-
- if (eio_poll() != -1 && uv_is_active((uv_handle_t*) &uv_eio_poller)) {
- /* printf("uv_eio_poller stop\n"); */
- uv_idle_stop(&uv_eio_poller);
- uv_unref();
- }
-}
-
-
-/*
- * uv_eio_want_poll() is called from the EIO thread pool each time an EIO
- * request (that is, one of the node.fs.* functions) has completed.
- */
-static void uv_eio_want_poll(void) {
- /* Signal the main thread that eio_poll need to be processed. */
- uv_async_send(&uv_eio_want_poll_notifier);
-}
-
-
-static void uv_eio_done_poll(void) {
- /*
- * Signal the main thread that we should stop calling eio_poll().
- * from the idle watcher.
- */
- uv_async_send(&uv_eio_done_poll_notifier);
-}
-
-
-void uv_eio_init() {
- if (uv_eio_init_count == 0) {
- uv_eio_init_count++;
-
- uv_idle_init(&uv_eio_poller);
- uv_idle_start(&uv_eio_poller, uv_eio_do_poll);
-
- uv_async_init(&uv_eio_want_poll_notifier, uv_eio_want_poll_notifier_cb);
- uv_unref();
-
- uv_async_init(&uv_eio_done_poll_notifier, uv_eio_done_poll_notifier_cb);
- uv_unref();
-
- eio_init(uv_eio_want_poll, uv_eio_done_poll);
- /*
- * Don't handle more than 10 reqs on each eio_poll(). This is to avoid
- * race conditions. See Node's test/simple/test-eio-race.js
- */
- eio_set_max_poll_reqs(10);
- }
-}
+++ /dev/null
-/* This header is private to libuv */
-#ifndef UV_EIO_H_
-#define UV_EIO_H_
-
-#include "eio.h"
-
-/*
- * Call this function to integrate libeio into the libuv event loop. It is
- * safe to call more than once.
- * TODO: uv_eio_deinit
- */
-void uv_eio_init(void);
-#endif
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-
-
-int uv_exepath(char* buffer, size_t* size) {
- uint32_t usize;
- int result;
- char* path;
- char* fullpath;
-
- if (!buffer || !size) {
- return -1;
- }
-
- int mib[4];
-
- mib[0] = CTL_KERN;
- mib[1] = KERN_PROC;
- mib[2] = KERN_PROC_PATHNAME;
- mib[3] = -1;
-
- size_t cb = *size;
- if (sysctl(mib, 4, buffer, &cb, NULL, 0) < 0) {
- *size = 0;
- return -1;
- }
- *size = strlen(buffer);
-
- return 0;
-}
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-
-#include <stdint.h>
-#include <stddef.h>
-#include <time.h>
-
-#undef NANOSEC
-#define NANOSEC 1000000000
-
-/*
- * There's probably some way to get time from Linux than gettimeofday(). What
- * it is, I don't know.
- */
-uint64_t uv_hrtime() {
- struct timespec ts;
- clock_gettime(CLOCK_MONOTONIC, &ts);
- return (ts.tv_sec * NANOSEC + ts.tv_nsec);
-}
-
-
-int uv_exepath(char* buffer, size_t* size) {
- uint32_t usize;
- int result;
- char* path;
- char* fullpath;
-
- if (!buffer || !size) {
- return -1;
- }
-
- *size = readlink("/proc/self/exe", buffer, *size - 1);
- if (*size <= 0) return -1;
- buffer[*size] = '\0';
- return 0;
-}
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-
-#include <limits.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <sys/time.h>
-
-
-uint64_t uv_hrtime() {
- return (gethrtime());
-}
-
-
-/*
- * We could use a static buffer for the path manipulations that we need outside
- * of the function, but this function could be called by multiple consumers and
- * we don't want to potentially create a race condition in the use of snprintf.
- */
-int uv_exepath(char* buffer, size_t* size) {
- size_t res;
- pid_t pid;
- char buf[PATH_MAX];
-
- if (buffer == NULL)
- return (-1);
-
- if (size == NULL)
- return (-1);
-
- pid = getpid();
- (void) snprintf(buf, sizeof (buf), "/proc/%d/path/a.out", pid);
- res = readlink(buf, buffer, *size - 1);
-
- if (res < 0)
- return (res);
-
- buffer[res] = '\0';
- *size = res;
- return (0);
-}
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-#include "uv-common.h"
-#include "uv-eio.h"
-
-#include <stddef.h> /* NULL */
-#include <stdio.h> /* printf */
-#include <stdlib.h>
-#include <string.h> /* strerror */
-#include <errno.h>
-#include <assert.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <limits.h> /* PATH_MAX */
-
-#if defined(__APPLE__)
-#include <mach-o/dyld.h> /* _NSGetExecutablePath */
-#endif
-
-#if defined(__FreeBSD__)
-#include <sys/sysctl.h>
-#endif
-
-
-static uv_err_t last_err;
-
-struct uv_ares_data_s {
- ares_channel channel;
- /*
- * While the channel is active this timer is called once per second to be sure
- * that we're always calling ares_process. See the warning above the
- * definition of ares_timeout().
- */
- ev_timer timer;
-};
-
-static struct uv_ares_data_s ares_data;
-
-
-void uv__tcp_io(EV_P_ ev_io* watcher, int revents);
-void uv__next(EV_P_ ev_idle* watcher, int revents);
-static void uv__tcp_connect(uv_tcp_t*);
-int uv_tcp_open(uv_tcp_t*, int fd);
-static void uv__finish_close(uv_handle_t* handle);
-
-/* flags */
-enum {
- UV_CLOSING = 0x00000001, /* uv_close() called but not finished. */
- UV_CLOSED = 0x00000002, /* close(2) finished. */
- UV_READING = 0x00000004, /* uv_read_start() called. */
- UV_SHUTTING = 0x00000008, /* uv_shutdown() called but not complete. */
- UV_SHUT = 0x00000010 /* Write side closed. */
-};
-
-
-void uv_flag_set(uv_handle_t* handle, int flag) {
- handle->flags |= flag;
-}
-
-
-/* TODO Share this code with Windows. */
-/* TODO Expose callback to user to handle fatal error like V8 does. */
-static void uv_fatal_error(const int errorno, const char* syscall) {
- char* buf = NULL;
- const char* errmsg;
-
- if (buf) {
- errmsg = buf;
- } else {
- errmsg = "Unknown error";
- }
-
- if (syscall) {
- fprintf(stderr, "\nlibuv fatal error. %s: (%d) %s\n", syscall, errorno,
- errmsg);
- } else {
- fprintf(stderr, "\nlibuv fatal error. (%d) %s\n", errorno, errmsg);
- }
-
- *((char*)NULL) = 0xff; /* Force debug break */
- abort();
-}
-
-
-uv_err_t uv_last_error() {
- return last_err;
-}
-
-
-char* uv_strerror(uv_err_t err) {
- return strerror(err.sys_errno_);
-}
-
-
-void uv_flag_unset(uv_handle_t* handle, int flag) {
- handle->flags = handle->flags & ~flag;
-}
-
-
-int uv_flag_is_set(uv_handle_t* handle, int flag) {
- return (handle->flags & flag) != 0;
-}
-
-
-static uv_err_code uv_translate_sys_error(int sys_errno) {
- switch (sys_errno) {
- case 0: return UV_OK;
- case EACCES: return UV_EACCESS;
- case EAGAIN: return UV_EAGAIN;
- case ECONNRESET: return UV_ECONNRESET;
- case EFAULT: return UV_EFAULT;
- case EMFILE: return UV_EMFILE;
- case EINVAL: return UV_EINVAL;
- case ECONNREFUSED: return UV_ECONNREFUSED;
- case EADDRINUSE: return UV_EADDRINUSE;
- case EADDRNOTAVAIL: return UV_EADDRNOTAVAIL;
- default: return UV_UNKNOWN;
- }
-}
-
-
-static uv_err_t uv_err_new_artificial(uv_handle_t* handle, int code) {
- uv_err_t err;
- err.sys_errno_ = 0;
- err.code = code;
- last_err = err;
- return err;
-}
-
-
-static uv_err_t uv_err_new(uv_handle_t* handle, int sys_error) {
- uv_err_t err;
- err.sys_errno_ = sys_error;
- err.code = uv_translate_sys_error(sys_error);
- last_err = err;
- return err;
-}
-
-
-int uv_close(uv_handle_t* handle, uv_close_cb close_cb) {
- uv_tcp_t* tcp;
- uv_async_t* async;
- uv_timer_t* timer;
-
- handle->close_cb = close_cb;
-
- switch (handle->type) {
- case UV_TCP:
- tcp = (uv_tcp_t*) handle;
- ev_io_stop(EV_DEFAULT_ &tcp->write_watcher);
- ev_io_stop(EV_DEFAULT_ &tcp->read_watcher);
- break;
-
- case UV_PREPARE:
- uv_prepare_stop((uv_prepare_t*) handle);
- break;
-
- case UV_CHECK:
- uv_check_stop((uv_check_t*) handle);
- break;
-
- case UV_IDLE:
- uv_idle_stop((uv_idle_t*) handle);
- break;
-
- case UV_ASYNC:
- async = (uv_async_t*)handle;
- ev_async_stop(EV_DEFAULT_ &async->async_watcher);
- ev_ref(EV_DEFAULT_UC);
- break;
-
- case UV_TIMER:
- timer = (uv_timer_t*)handle;
- if (ev_is_active(&timer->timer_watcher)) {
- ev_ref(EV_DEFAULT_UC);
- }
- ev_timer_stop(EV_DEFAULT_ &timer->timer_watcher);
- break;
-
- default:
- assert(0);
- return -1;
- }
-
- uv_flag_set(handle, UV_CLOSING);
-
- /* This is used to call the on_close callback in the next loop. */
- ev_idle_start(EV_DEFAULT_ &handle->next_watcher);
- ev_feed_event(EV_DEFAULT_ &handle->next_watcher, EV_IDLE);
- assert(ev_is_pending(&handle->next_watcher));
-
- return 0;
-}
-
-
-void uv_init() {
- /* Initialize the default ev loop. */
-#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
- ev_default_loop(EVBACKEND_KQUEUE);
-#else
- ev_default_loop(EVFLAG_AUTO);
-#endif
-}
-
-
-int uv_run() {
- ev_run(EV_DEFAULT_ 0);
- return 0;
-}
-
-
-static void uv__handle_init(uv_handle_t* handle, uv_handle_type type) {
- uv_counters()->handle_init++;
-
- handle->type = type;
- handle->flags = 0;
-
- ev_init(&handle->next_watcher, uv__next);
- handle->next_watcher.data = handle;
-
- /* Ref the loop until this handle is closed. See uv__finish_close. */
- ev_ref(EV_DEFAULT_UC);
-}
-
-
-int uv_tcp_init(uv_tcp_t* tcp) {
- uv__handle_init((uv_handle_t*)tcp, UV_TCP);
- uv_counters()->tcp_init++;
-
- tcp->alloc_cb = NULL;
- tcp->connect_req = NULL;
- tcp->accepted_fd = -1;
- tcp->fd = -1;
- tcp->delayed_error = 0;
- ngx_queue_init(&tcp->write_queue);
- ngx_queue_init(&tcp->write_completed_queue);
- tcp->write_queue_size = 0;
-
- ev_init(&tcp->read_watcher, uv__tcp_io);
- tcp->read_watcher.data = tcp;
-
- ev_init(&tcp->write_watcher, uv__tcp_io);
- tcp->write_watcher.data = tcp;
-
- assert(ngx_queue_empty(&tcp->write_queue));
- assert(ngx_queue_empty(&tcp->write_completed_queue));
- assert(tcp->write_queue_size == 0);
-
- return 0;
-}
-
-
-int uv__bind(uv_tcp_t* tcp, int domain, struct sockaddr* addr, int addrsize) {
- int r;
-
- if (tcp->fd <= 0) {
- int fd = socket(domain, SOCK_STREAM, 0);
-
- if (fd < 0) {
- uv_err_new((uv_handle_t*)tcp, errno);
- return -1;
- }
-
- if (uv_tcp_open(tcp, fd)) {
- close(fd);
- return -2;
- }
- }
-
- assert(tcp->fd >= 0);
-
- r = bind(tcp->fd, addr, addrsize);
- tcp->delayed_error = 0;
-
- if (r) {
- switch (errno) {
- case EADDRINUSE:
- tcp->delayed_error = errno;
- return 0;
-
- default:
- uv_err_new((uv_handle_t*)tcp, errno);
- return -1;
- }
- }
-
- return 0;
-}
-
-
-int uv_tcp_bind(uv_tcp_t* tcp, struct sockaddr_in addr) {
- if (addr.sin_family != AF_INET) {
- uv_err_new((uv_handle_t*)tcp, EFAULT);
- return -1;
- }
-
- return uv__bind(tcp, AF_INET, (struct sockaddr*)&addr, sizeof(struct sockaddr_in));
-}
-
-
-int uv_tcp_bind6(uv_tcp_t* tcp, struct sockaddr_in6 addr) {
- if (addr.sin6_family != AF_INET6) {
- uv_err_new((uv_handle_t*)tcp, EFAULT);
- return -1;
- }
-
- return uv__bind(tcp, AF_INET6, (struct sockaddr*)&addr, sizeof(struct sockaddr_in6));
-}
-
-
-int uv_tcp_open(uv_tcp_t* tcp, int fd) {
- int yes;
- int r;
-
- assert(fd >= 0);
- tcp->fd = fd;
-
- /* Set non-blocking. */
- yes = 1;
- r = fcntl(fd, F_SETFL, O_NONBLOCK);
- assert(r == 0);
-
- /* Reuse the port address. */
- r = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int));
- assert(r == 0);
-
- /* Associate the fd with each ev_io watcher. */
- ev_io_set(&tcp->read_watcher, fd, EV_READ);
- ev_io_set(&tcp->write_watcher, fd, EV_WRITE);
-
- /* These should have been set up by uv_tcp_init. */
- assert(tcp->next_watcher.data == tcp);
- assert(tcp->write_watcher.data == tcp);
- assert(tcp->read_watcher.data == tcp);
- assert(tcp->read_watcher.cb == uv__tcp_io);
- assert(tcp->write_watcher.cb == uv__tcp_io);
-
- return 0;
-}
-
-
-void uv__server_io(EV_P_ ev_io* watcher, int revents) {
- int fd;
- struct sockaddr_storage addr;
- socklen_t addrlen = sizeof(struct sockaddr_storage);
- uv_tcp_t* tcp = watcher->data;
-
- assert(watcher == &tcp->read_watcher ||
- watcher == &tcp->write_watcher);
- assert(revents == EV_READ);
-
- assert(!uv_flag_is_set((uv_handle_t*)tcp, UV_CLOSING));
-
- if (tcp->accepted_fd >= 0) {
- ev_io_stop(EV_DEFAULT_ &tcp->read_watcher);
- return;
- }
-
- while (1) {
- assert(tcp->accepted_fd < 0);
- fd = accept(tcp->fd, (struct sockaddr*)&addr, &addrlen);
-
- if (fd < 0) {
- if (errno == EAGAIN) {
- /* No problem. */
- return;
- } else if (errno == EMFILE) {
- /* TODO special trick. unlock reserved socket, accept, close. */
- return;
- } else {
- uv_err_new((uv_handle_t*)tcp, errno);
- tcp->connection_cb((uv_handle_t*)tcp, -1);
- }
-
- } else {
- tcp->accepted_fd = fd;
- tcp->connection_cb((uv_handle_t*)tcp, 0);
- if (tcp->accepted_fd >= 0) {
- /* The user hasn't yet accepted called uv_accept() */
- ev_io_stop(EV_DEFAULT_ &tcp->read_watcher);
- return;
- }
- }
- }
-}
-
-
-int uv_accept(uv_handle_t* server, uv_stream_t* client) {
- uv_tcp_t* tcpServer = (uv_tcp_t*)server;
- uv_tcp_t* tcpClient = (uv_tcp_t*)client;
-
- if (tcpServer->accepted_fd < 0) {
- uv_err_new(server, EAGAIN);
- return -1;
- }
-
- if (uv_tcp_open(tcpClient, tcpServer->accepted_fd)) {
- /* Ignore error for now */
- tcpServer->accepted_fd = -1;
- close(tcpServer->accepted_fd);
- return -1;
- } else {
- tcpServer->accepted_fd = -1;
- ev_io_start(EV_DEFAULT_ &tcpServer->read_watcher);
- return 0;
- }
-}
-
-
-int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
- int r;
-
- assert(tcp->fd >= 0);
-
- if (tcp->delayed_error) {
- uv_err_new((uv_handle_t*)tcp, tcp->delayed_error);
- return -1;
- }
-
- r = listen(tcp->fd, backlog);
- if (r < 0) {
- uv_err_new((uv_handle_t*)tcp, errno);
- return -1;
- }
-
- tcp->connection_cb = cb;
-
- /* Start listening for connections. */
- ev_io_set(&tcp->read_watcher, tcp->fd, EV_READ);
- ev_set_cb(&tcp->read_watcher, uv__server_io);
- ev_io_start(EV_DEFAULT_ &tcp->read_watcher);
-
- return 0;
-}
-
-
-void uv__finish_close(uv_handle_t* handle) {
- uv_tcp_t* tcp;
-
- assert(uv_flag_is_set(handle, UV_CLOSING));
- assert(!uv_flag_is_set(handle, UV_CLOSED));
- uv_flag_set(handle, UV_CLOSED);
-
- switch (handle->type) {
- case UV_TCP:
- /* XXX Is it necessary to stop these watchers here? weren't they
- * supposed to be stopped in uv_close()?
- */
- tcp = (uv_tcp_t*)handle;
- ev_io_stop(EV_DEFAULT_ &tcp->write_watcher);
- ev_io_stop(EV_DEFAULT_ &tcp->read_watcher);
-
- assert(!ev_is_active(&tcp->read_watcher));
- assert(!ev_is_active(&tcp->write_watcher));
-
- close(tcp->fd);
- tcp->fd = -1;
-
- if (tcp->accepted_fd >= 0) {
- close(tcp->accepted_fd);
- tcp->accepted_fd = -1;
- }
- break;
-
- case UV_PREPARE:
- assert(!ev_is_active(&((uv_prepare_t*)handle)->prepare_watcher));
- break;
-
- case UV_CHECK:
- assert(!ev_is_active(&((uv_check_t*)handle)->check_watcher));
- break;
-
- case UV_IDLE:
- assert(!ev_is_active(&((uv_idle_t*)handle)->idle_watcher));
- break;
-
- case UV_ASYNC:
- assert(!ev_is_active(&((uv_async_t*)handle)->async_watcher));
- break;
-
- case UV_TIMER:
- assert(!ev_is_active(&((uv_timer_t*)handle)->timer_watcher));
- break;
-
- default:
- assert(0);
- break;
- }
-
- ev_idle_stop(EV_DEFAULT_ &handle->next_watcher);
-
- if (handle->close_cb) {
- handle->close_cb(handle);
- }
-
- ev_unref(EV_DEFAULT_UC);
-}
-
-
-uv_req_t* uv_write_queue_head(uv_tcp_t* tcp) {
- ngx_queue_t* q;
- uv_req_t* req;
-
- if (ngx_queue_empty(&tcp->write_queue)) {
- return NULL;
- }
-
- q = ngx_queue_head(&tcp->write_queue);
- if (!q) {
- return NULL;
- }
-
- req = ngx_queue_data(q, struct uv_req_s, queue);
- assert(req);
-
- return req;
-}
-
-
-void uv__next(EV_P_ ev_idle* watcher, int revents) {
- uv_handle_t* handle = watcher->data;
- assert(watcher == &handle->next_watcher);
- assert(revents == EV_IDLE);
-
- /* For now this function is only to handle the closing event, but we might
- * put more stuff here later.
- */
- assert(uv_flag_is_set(handle, UV_CLOSING));
- uv__finish_close(handle);
-}
-
-
-static void uv__drain(uv_tcp_t* tcp) {
- uv_req_t* req;
- uv_shutdown_cb cb;
-
- assert(!uv_write_queue_head(tcp));
- assert(tcp->write_queue_size == 0);
-
- ev_io_stop(EV_DEFAULT_ &tcp->write_watcher);
-
- /* Shutdown? */
- if (uv_flag_is_set((uv_handle_t*)tcp, UV_SHUTTING) &&
- !uv_flag_is_set((uv_handle_t*)tcp, UV_CLOSING) &&
- !uv_flag_is_set((uv_handle_t*)tcp, UV_SHUT)) {
- assert(tcp->shutdown_req);
-
- req = tcp->shutdown_req;
- cb = (uv_shutdown_cb)req->cb;
-
- if (shutdown(tcp->fd, SHUT_WR)) {
- /* Error. Report it. User should call uv_close(). */
- uv_err_new((uv_handle_t*)tcp, errno);
- if (cb) cb(req, -1);
- } else {
- uv_err_new((uv_handle_t*)tcp, 0);
- uv_flag_set((uv_handle_t*)tcp, UV_SHUT);
- if (cb) cb(req, 0);
- }
- }
-}
-
-
-/* On success returns NULL. On error returns a pointer to the write request
- * which had the error.
- */
-static uv_req_t* uv__write(uv_tcp_t* tcp) {
- uv_req_t* req;
- struct iovec* iov;
- int iovcnt;
- ssize_t n;
-
- assert(tcp->fd >= 0);
-
- /* TODO: should probably while(1) here until EAGAIN */
-
- /* Get the request at the head of the queue. */
- req = uv_write_queue_head(tcp);
- if (!req) {
- assert(tcp->write_queue_size == 0);
- return NULL;
- }
-
- assert(req->handle == (uv_handle_t*)tcp);
-
- /* Cast to iovec. We had to have our own uv_buf_t instead of iovec
- * because Windows's WSABUF is not an iovec.
- */
- assert(sizeof(uv_buf_t) == sizeof(struct iovec));
- iov = (struct iovec*) &(req->bufs[req->write_index]);
- iovcnt = req->bufcnt - req->write_index;
-
- /* Now do the actual writev. Note that we've been updating the pointers
- * inside the iov each time we write. So there is no need to offset it.
- */
-
- n = writev(tcp->fd, iov, iovcnt);
-
- if (n < 0) {
- if (errno != EAGAIN) {
- /* Error */
- uv_err_new((uv_handle_t*)tcp, errno);
- return req;
- }
- } else {
- /* Successful write */
-
- /* Update the counters. */
- while (n > 0) {
- uv_buf_t* buf = &(req->bufs[req->write_index]);
- size_t len = buf->len;
-
- assert(req->write_index < req->bufcnt);
-
- if (n < len) {
- buf->base += n;
- buf->len -= n;
- tcp->write_queue_size -= n;
- n = 0;
-
- /* There is more to write. Break and ensure the watcher is pending. */
- break;
-
- } else {
- /* Finished writing the buf at index req->write_index. */
- req->write_index++;
-
- assert(n >= len);
- n -= len;
-
- assert(tcp->write_queue_size >= len);
- tcp->write_queue_size -= len;
-
- if (req->write_index == req->bufcnt) {
- /* Then we're done! */
- assert(n == 0);
-
- /* Pop the req off tcp->write_queue. */
- ngx_queue_remove(&req->queue);
- if (req->bufs != req->bufsml) {
- free(req->bufs);
- }
- req->bufs = NULL;
-
- /* Add it to the write_completed_queue where it will have its
- * callback called in the near future.
- * TODO: start trying to write the next request.
- */
- ngx_queue_insert_tail(&tcp->write_completed_queue, &req->queue);
- ev_feed_event(EV_DEFAULT_ &tcp->write_watcher, EV_WRITE);
- return NULL;
- }
- }
- }
- }
-
- /* Either we've counted n down to zero or we've got EAGAIN. */
- assert(n == 0 || n == -1);
-
- /* We're not done. */
- ev_io_start(EV_DEFAULT_ &tcp->write_watcher);
-
- return NULL;
-}
-
-
-static void uv__write_callbacks(uv_tcp_t* tcp) {
- uv_write_cb cb;
- int callbacks_made = 0;
- ngx_queue_t* q;
- uv_req_t* req;
-
- while (!ngx_queue_empty(&tcp->write_completed_queue)) {
- /* Pop a req off write_completed_queue. */
- q = ngx_queue_head(&tcp->write_completed_queue);
- assert(q);
- req = ngx_queue_data(q, struct uv_req_s, queue);
- ngx_queue_remove(q);
-
- cb = (uv_write_cb) req->cb;
-
- /* NOTE: call callback AFTER freeing the request data. */
- if (cb) {
- cb(req, 0);
- }
-
- callbacks_made++;
- }
-
- assert(ngx_queue_empty(&tcp->write_completed_queue));
-
- /* Write queue drained. */
- if (!uv_write_queue_head(tcp)) {
- uv__drain(tcp);
- }
-}
-
-
-void uv__read(uv_tcp_t* tcp) {
- uv_buf_t buf;
- struct iovec* iov;
- ssize_t nread;
-
- /* XXX: Maybe instead of having UV_READING we just test if
- * tcp->read_cb is NULL or not?
- */
- while (tcp->read_cb && uv_flag_is_set((uv_handle_t*)tcp, UV_READING)) {
- assert(tcp->alloc_cb);
- buf = tcp->alloc_cb((uv_stream_t*)tcp, 64 * 1024);
-
- assert(buf.len > 0);
- assert(buf.base);
-
- iov = (struct iovec*) &buf;
-
- nread = readv(tcp->fd, iov, 1);
-
- if (nread < 0) {
- /* Error */
- if (errno == EAGAIN) {
- /* Wait for the next one. */
- if (uv_flag_is_set((uv_handle_t*)tcp, UV_READING)) {
- ev_io_start(EV_DEFAULT_UC_ &tcp->read_watcher);
- }
- uv_err_new((uv_handle_t*)tcp, EAGAIN);
- tcp->read_cb((uv_stream_t*)tcp, 0, buf);
- return;
- } else {
- /* Error. User should call uv_close(). */
- uv_err_new((uv_handle_t*)tcp, errno);
- tcp->read_cb((uv_stream_t*)tcp, -1, buf);
- assert(!ev_is_active(&tcp->read_watcher));
- return;
- }
- } else if (nread == 0) {
- /* EOF */
- uv_err_new_artificial((uv_handle_t*)tcp, UV_EOF);
- ev_io_stop(EV_DEFAULT_UC_ &tcp->read_watcher);
- tcp->read_cb((uv_stream_t*)tcp, -1, buf);
- return;
- } else {
- /* Successful read */
- tcp->read_cb((uv_stream_t*)tcp, nread, buf);
- }
- }
-}
-
-
-int uv_shutdown(uv_req_t* req) {
- uv_tcp_t* tcp = (uv_tcp_t*)req->handle;
- assert(tcp->fd >= 0);
- assert(tcp->type == UV_TCP);
-
- if (uv_flag_is_set((uv_handle_t*)tcp, UV_SHUT) ||
- uv_flag_is_set((uv_handle_t*)tcp, UV_CLOSED) ||
- uv_flag_is_set((uv_handle_t*)tcp, UV_CLOSING)) {
- return -1;
- }
-
- tcp->shutdown_req = req;
- req->type = UV_SHUTDOWN;
-
- uv_flag_set((uv_handle_t*)tcp, UV_SHUTTING);
-
- ev_io_start(EV_DEFAULT_UC_ &tcp->write_watcher);
-
- return 0;
-}
-
-
-void uv__tcp_io(EV_P_ ev_io* watcher, int revents) {
- uv_tcp_t* tcp = watcher->data;
- assert(watcher == &tcp->read_watcher ||
- watcher == &tcp->write_watcher);
-
- assert(tcp->fd >= 0);
-
- assert(!uv_flag_is_set((uv_handle_t*)tcp, UV_CLOSING));
-
- if (tcp->connect_req) {
- uv__tcp_connect(tcp);
- } else {
- if (revents & EV_READ) {
- uv__read(tcp);
- }
-
- if (revents & EV_WRITE) {
- uv_req_t* req = uv__write(tcp);
- if (req) {
- /* Error. Notify the user. */
- uv_write_cb cb = (uv_write_cb) req->cb;
-
- if (cb) {
- cb(req, -1);
- }
- } else {
- uv__write_callbacks(tcp);
- }
- }
- }
-}
-
-
-/**
- * We get called here from directly following a call to connect(2).
- * In order to determine if we've errored out or succeeded must call
- * getsockopt.
- */
-static void uv__tcp_connect(uv_tcp_t* tcp) {
- int error;
- uv_req_t* req;
- uv_connect_cb connect_cb;
- socklen_t errorsize = sizeof(int);
-
- assert(tcp->fd >= 0);
-
- req = tcp->connect_req;
- assert(req);
-
- if (tcp->delayed_error) {
- /* To smooth over the differences between unixes errors that
- * were reported synchronously on the first connect can be delayed
- * until the next tick--which is now.
- */
- error = tcp->delayed_error;
- tcp->delayed_error = 0;
- } else {
- /* Normal situation: we need to get the socket error from the kernel. */
- getsockopt(tcp->fd, SOL_SOCKET, SO_ERROR, &error, &errorsize);
- }
-
- if (!error) {
- ev_io_start(EV_DEFAULT_ &tcp->read_watcher);
-
- /* Successful connection */
- tcp->connect_req = NULL;
- connect_cb = (uv_connect_cb) req->cb;
- if (connect_cb) {
- connect_cb(req, 0);
- }
-
- } else if (error == EINPROGRESS) {
- /* Still connecting. */
- return;
- } else {
- /* Error */
- uv_err_t err = uv_err_new((uv_handle_t*)tcp, error);
-
- tcp->connect_req = NULL;
-
- connect_cb = (uv_connect_cb) req->cb;
- if (connect_cb) {
- connect_cb(req, -1);
- }
- }
-}
-
-
-int uv_tcp_connect(uv_req_t* req, struct sockaddr_in addr) {
- uv_tcp_t* tcp = (uv_tcp_t*)req->handle;
- int addrsize;
- int r;
-
- if (tcp->fd <= 0) {
- int fd = socket(AF_INET, SOCK_STREAM, 0);
-
- if (fd < 0) {
- uv_err_new((uv_handle_t*)tcp, errno);
- return -1;
- }
-
- if (uv_tcp_open(tcp, fd)) {
- close(fd);
- return -2;
- }
- }
-
- req->type = UV_CONNECT;
- ngx_queue_init(&req->queue);
-
- if (tcp->connect_req) {
- uv_err_new((uv_handle_t*)tcp, EALREADY);
- return -1;
- }
-
- if (tcp->type != UV_TCP) {
- uv_err_new((uv_handle_t*)tcp, ENOTSOCK);
- return -1;
- }
-
- tcp->connect_req = req;
-
- addrsize = sizeof(struct sockaddr_in);
- assert(addr.sin_family == AF_INET);
-
- r = connect(tcp->fd, (struct sockaddr*)&addr, addrsize);
- tcp->delayed_error = 0;
-
- if (r != 0 && errno != EINPROGRESS) {
- switch (errno) {
- /* If we get a ECONNREFUSED wait until the next tick to report the
- * error. Solaris wants to report immediately--other unixes want to
- * wait.
- */
- case ECONNREFUSED:
- tcp->delayed_error = errno;
- break;
-
- default:
- uv_err_new((uv_handle_t*)tcp, errno);
- return -1;
- }
- }
-
- assert(tcp->write_watcher.data == tcp);
- ev_io_start(EV_DEFAULT_ &tcp->write_watcher);
-
- if (tcp->delayed_error) {
- ev_feed_event(EV_DEFAULT_ &tcp->write_watcher, EV_WRITE);
- }
-
- return 0;
-}
-
-
-/* TODO: Implement IPv6 Connect for UNIX */
-int uv_tcp_connect6(uv_req_t* req, struct sockaddr_in6 addr) {
- uv_err_new_artificial((uv_handle_t*)req->handle, UV_EAFNOSUPPORT);
- return -1;
-}
-
-
-static size_t uv__buf_count(uv_buf_t bufs[], int bufcnt) {
- size_t total = 0;
- int i;
-
- for (i = 0; i < bufcnt; i++) {
- total += bufs[i].len;
- }
-
- return total;
-}
-
-
-/* The buffers to be written must remain valid until the callback is called.
- * This is not required for the uv_buf_t array.
- */
-int uv_write(uv_req_t* req, uv_buf_t bufs[], int bufcnt) {
- uv_tcp_t* tcp = (uv_tcp_t*)req->handle;
- int empty_queue = (tcp->write_queue_size == 0);
- assert(tcp->fd >= 0);
-
- ngx_queue_init(&req->queue);
- req->type = UV_WRITE;
-
-
- if (bufcnt < UV_REQ_BUFSML_SIZE) {
- req->bufs = req->bufsml;
- }
- else {
- req->bufs = malloc(sizeof(uv_buf_t) * bufcnt);
- }
-
- memcpy(req->bufs, bufs, bufcnt * sizeof(uv_buf_t));
- req->bufcnt = bufcnt;
-
- // fprintf(stderr, "cnt: %d bufs: %p bufsml: %p\n", bufcnt, req->bufs, req->bufsml);
-
- req->write_index = 0;
- tcp->write_queue_size += uv__buf_count(bufs, bufcnt);
-
- /* Append the request to write_queue. */
- ngx_queue_insert_tail(&tcp->write_queue, &req->queue);
-
- assert(!ngx_queue_empty(&tcp->write_queue));
- assert(tcp->write_watcher.cb == uv__tcp_io);
- assert(tcp->write_watcher.data == tcp);
- assert(tcp->write_watcher.fd == tcp->fd);
-
- /* If the queue was empty when this function began, we should attempt to
- * do the write immediately. Otherwise start the write_watcher and wait
- * for the fd to become writable.
- */
- if (empty_queue) {
- if (uv__write(tcp)) {
- /* Error. uv_last_error has been set. */
- return -1;
- }
- }
-
- /* If the queue is now empty - we've flushed the request already. That
- * means we need to make the callback. The callback can only be done on a
- * fresh stack so we feed the event loop in order to service it.
- */
- if (ngx_queue_empty(&tcp->write_queue)) {
- ev_feed_event(EV_DEFAULT_ &tcp->write_watcher, EV_WRITE);
- } else {
- /* Otherwise there is data to write - so we should wait for the file
- * descriptor to become writable.
- */
- ev_io_start(EV_DEFAULT_ &tcp->write_watcher);
- }
-
- return 0;
-}
-
-
-void uv_ref() {
- ev_ref(EV_DEFAULT_UC);
-}
-
-
-void uv_unref() {
- ev_unref(EV_DEFAULT_UC);
-}
-
-
-void uv_update_time() {
- ev_now_update(EV_DEFAULT_UC);
-}
-
-
-int64_t uv_now() {
- return (int64_t)(ev_now(EV_DEFAULT_UC) * 1000);
-}
-
-
-int uv_read_start(uv_stream_t* stream, uv_alloc_cb alloc_cb, uv_read_cb read_cb) {
- uv_tcp_t* tcp = (uv_tcp_t*)stream;
-
- /* The UV_READING flag is irrelevant of the state of the tcp - it just
- * expresses the desired state of the user.
- */
- uv_flag_set((uv_handle_t*)tcp, UV_READING);
-
- /* TODO: try to do the read inline? */
- /* TODO: keep track of tcp state. If we've gotten a EOF then we should
- * not start the IO watcher.
- */
- assert(tcp->fd >= 0);
- assert(alloc_cb);
-
- tcp->read_cb = read_cb;
- tcp->alloc_cb = alloc_cb;
-
- /* These should have been set by uv_tcp_init. */
- assert(tcp->read_watcher.data == tcp);
- assert(tcp->read_watcher.cb == uv__tcp_io);
-
- ev_io_start(EV_DEFAULT_UC_ &tcp->read_watcher);
- return 0;
-}
-
-
-int uv_read_stop(uv_stream_t* stream) {
- uv_tcp_t* tcp = (uv_tcp_t*)stream;
-
- uv_flag_unset((uv_handle_t*)tcp, UV_READING);
-
- ev_io_stop(EV_DEFAULT_UC_ &tcp->read_watcher);
- tcp->read_cb = NULL;
- tcp->alloc_cb = NULL;
- return 0;
-}
-
-
-void uv_req_init(uv_req_t* req, uv_handle_t* handle, void* cb) {
- uv_counters()->req_init++;
- req->type = UV_UNKNOWN_REQ;
- req->cb = cb;
- req->handle = handle;
- ngx_queue_init(&req->queue);
-}
-
-
-static void uv__prepare(EV_P_ ev_prepare* w, int revents) {
- uv_prepare_t* prepare = w->data;
-
- if (prepare->prepare_cb) {
- prepare->prepare_cb(prepare, 0);
- }
-}
-
-
-int uv_prepare_init(uv_prepare_t* prepare) {
- uv__handle_init((uv_handle_t*)prepare, UV_PREPARE);
- uv_counters()->prepare_init++;
-
- ev_prepare_init(&prepare->prepare_watcher, uv__prepare);
- prepare->prepare_watcher.data = prepare;
-
- prepare->prepare_cb = NULL;
-
- return 0;
-}
-
-
-int uv_prepare_start(uv_prepare_t* prepare, uv_prepare_cb cb) {
- int was_active = ev_is_active(&prepare->prepare_watcher);
-
- prepare->prepare_cb = cb;
-
- ev_prepare_start(EV_DEFAULT_UC_ &prepare->prepare_watcher);
-
- if (!was_active) {
- ev_unref(EV_DEFAULT_UC);
- }
-
- return 0;
-}
-
-
-int uv_prepare_stop(uv_prepare_t* prepare) {
- int was_active = ev_is_active(&prepare->prepare_watcher);
-
- ev_prepare_stop(EV_DEFAULT_UC_ &prepare->prepare_watcher);
-
- if (was_active) {
- ev_ref(EV_DEFAULT_UC);
- }
- return 0;
-}
-
-
-
-static void uv__check(EV_P_ ev_check* w, int revents) {
- uv_check_t* check = w->data;
-
- if (check->check_cb) {
- check->check_cb(check, 0);
- }
-}
-
-
-int uv_check_init(uv_check_t* check) {
- uv__handle_init((uv_handle_t*)check, UV_CHECK);
- uv_counters()->check_init;
-
- ev_check_init(&check->check_watcher, uv__check);
- check->check_watcher.data = check;
-
- check->check_cb = NULL;
-
- return 0;
-}
-
-
-int uv_check_start(uv_check_t* check, uv_check_cb cb) {
- int was_active = ev_is_active(&check->check_watcher);
-
- check->check_cb = cb;
-
- ev_check_start(EV_DEFAULT_UC_ &check->check_watcher);
-
- if (!was_active) {
- ev_unref(EV_DEFAULT_UC);
- }
-
- return 0;
-}
-
-
-int uv_check_stop(uv_check_t* check) {
- int was_active = ev_is_active(&check->check_watcher);
-
- ev_check_stop(EV_DEFAULT_UC_ &check->check_watcher);
-
- if (was_active) {
- ev_ref(EV_DEFAULT_UC);
- }
-
- return 0;
-}
-
-
-static void uv__idle(EV_P_ ev_idle* w, int revents) {
- uv_idle_t* idle = (uv_idle_t*)(w->data);
-
- if (idle->idle_cb) {
- idle->idle_cb(idle, 0);
- }
-}
-
-
-
-int uv_idle_init(uv_idle_t* idle) {
- uv__handle_init((uv_handle_t*)idle, UV_IDLE);
- uv_counters()->idle_init++;
-
- ev_idle_init(&idle->idle_watcher, uv__idle);
- idle->idle_watcher.data = idle;
-
- idle->idle_cb = NULL;
-
- return 0;
-}
-
-
-int uv_idle_start(uv_idle_t* idle, uv_idle_cb cb) {
- int was_active = ev_is_active(&idle->idle_watcher);
-
- idle->idle_cb = cb;
- ev_idle_start(EV_DEFAULT_UC_ &idle->idle_watcher);
-
- if (!was_active) {
- ev_unref(EV_DEFAULT_UC);
- }
-
- return 0;
-}
-
-
-int uv_idle_stop(uv_idle_t* idle) {
- int was_active = ev_is_active(&idle->idle_watcher);
-
- ev_idle_stop(EV_DEFAULT_UC_ &idle->idle_watcher);
-
- if (was_active) {
- ev_ref(EV_DEFAULT_UC);
- }
-
- return 0;
-}
-
-
-int uv_is_active(uv_handle_t* handle) {
- switch (handle->type) {
- case UV_TIMER:
- return ev_is_active(&((uv_timer_t*)handle)->timer_watcher);
-
- case UV_PREPARE:
- return ev_is_active(&((uv_prepare_t*)handle)->prepare_watcher);
-
- case UV_CHECK:
- return ev_is_active(&((uv_check_t*)handle)->check_watcher);
-
- case UV_IDLE:
- return ev_is_active(&((uv_idle_t*)handle)->idle_watcher);
-
- default:
- return 1;
- }
-}
-
-
-static void uv__async(EV_P_ ev_async* w, int revents) {
- uv_async_t* async = w->data;
-
- if (async->async_cb) {
- async->async_cb(async, 0);
- }
-}
-
-
-int uv_async_init(uv_async_t* async, uv_async_cb async_cb) {
- uv__handle_init((uv_handle_t*)async, UV_ASYNC);
- uv_counters()->async_init++;
-
- ev_async_init(&async->async_watcher, uv__async);
- async->async_watcher.data = async;
-
- async->async_cb = async_cb;
-
- /* Note: This does not have symmetry with the other libev wrappers. */
- ev_async_start(EV_DEFAULT_UC_ &async->async_watcher);
- ev_unref(EV_DEFAULT_UC);
-
- return 0;
-}
-
-
-int uv_async_send(uv_async_t* async) {
- ev_async_send(EV_DEFAULT_UC_ &async->async_watcher);
-}
-
-
-static void uv__timer_cb(EV_P_ ev_timer* w, int revents) {
- uv_timer_t* timer = w->data;
-
- if (!ev_is_active(w)) {
- ev_ref(EV_DEFAULT_UC);
- }
-
- if (timer->timer_cb) {
- timer->timer_cb(timer, 0);
- }
-}
-
-
-int uv_timer_init(uv_timer_t* timer) {
- uv__handle_init((uv_handle_t*)timer, UV_TIMER);
- uv_counters()->timer_init++;
-
- ev_init(&timer->timer_watcher, uv__timer_cb);
- timer->timer_watcher.data = timer;
-
- return 0;
-}
-
-
-int uv_timer_start(uv_timer_t* timer, uv_timer_cb cb, int64_t timeout,
- int64_t repeat) {
- if (ev_is_active(&timer->timer_watcher)) {
- return -1;
- }
-
- timer->timer_cb = cb;
- ev_timer_set(&timer->timer_watcher, timeout / 1000.0, repeat / 1000.0);
- ev_timer_start(EV_DEFAULT_UC_ &timer->timer_watcher);
- ev_unref(EV_DEFAULT_UC);
- return 0;
-}
-
-
-int uv_timer_stop(uv_timer_t* timer) {
- if (ev_is_active(&timer->timer_watcher)) {
- ev_ref(EV_DEFAULT_UC);
- }
-
- ev_timer_stop(EV_DEFAULT_UC_ &timer->timer_watcher);
- return 0;
-}
-
-
-int uv_timer_again(uv_timer_t* timer) {
- if (!ev_is_active(&timer->timer_watcher)) {
- uv_err_new((uv_handle_t*)timer, EINVAL);
- return -1;
- }
-
- ev_timer_again(EV_DEFAULT_UC_ &timer->timer_watcher);
- return 0;
-}
-
-void uv_timer_set_repeat(uv_timer_t* timer, int64_t repeat) {
- assert(timer->type == UV_TIMER);
- timer->timer_watcher.repeat = repeat / 1000.0;
-}
-
-int64_t uv_timer_get_repeat(uv_timer_t* timer) {
- assert(timer->type == UV_TIMER);
- return (int64_t)(1000 * timer->timer_watcher.repeat);
-}
-
-
-/*
- * This is called once per second by ares_data.timer. It is used to
- * constantly callback into c-ares for possibly processing timeouts.
- */
-static void uv__ares_timeout(EV_P_ struct ev_timer* watcher, int revents) {
- assert(watcher == &ares_data.timer);
- assert(revents == EV_TIMER);
- assert(!uv_ares_handles_empty());
- ares_process_fd(ares_data.channel, ARES_SOCKET_BAD, ARES_SOCKET_BAD);
-}
-
-
-static void uv__ares_io(EV_P_ struct ev_io* watcher, int revents) {
- /* Reset the idle timer */
- ev_timer_again(EV_A_ &ares_data.timer);
-
- /* Process DNS responses */
- ares_process_fd(ares_data.channel,
- revents & EV_READ ? watcher->fd : ARES_SOCKET_BAD,
- revents & EV_WRITE ? watcher->fd : ARES_SOCKET_BAD);
-}
-
-
-/* Allocates and returns a new uv_ares_task_t */
-static uv_ares_task_t* uv__ares_task_create(int fd) {
- uv_ares_task_t* h = malloc(sizeof(uv_ares_task_t));
-
- if (h == NULL) {
- uv_fatal_error(ENOMEM, "malloc");
- }
-
- h->sock = fd;
-
- ev_io_init(&h->read_watcher, uv__ares_io, fd, EV_READ);
- ev_io_init(&h->write_watcher, uv__ares_io, fd, EV_WRITE);
-
- h->read_watcher.data = h;
- h->write_watcher.data = h;
-}
-
-
-/* Callback from ares when socket operation is started */
-static void uv__ares_sockstate_cb(void* data, ares_socket_t sock,
- int read, int write) {
- uv_ares_task_t* h = uv_find_ares_handle(sock);
-
- if (read || write) {
- if (!h) {
- /* New socket */
-
- /* If this is the first socket then start the timer. */
- if (!ev_is_active(&ares_data.timer)) {
- assert(uv_ares_handles_empty());
- ev_timer_again(EV_DEFAULT_UC_ &ares_data.timer);
- }
-
- h = uv__ares_task_create(sock);
- uv_add_ares_handle(h);
- }
-
- if (read) {
- ev_io_start(EV_DEFAULT_UC_ &h->read_watcher);
- } else {
- ev_io_stop(EV_DEFAULT_UC_ &h->read_watcher);
- }
-
- if (write) {
- ev_io_start(EV_DEFAULT_UC_ &h->write_watcher);
- } else {
- ev_io_stop(EV_DEFAULT_UC_ &h->write_watcher);
- }
-
- } else {
- /*
- * read == 0 and write == 0 this is c-ares's way of notifying us that
- * the socket is now closed. We must free the data associated with
- * socket.
- */
- assert(h && "When an ares socket is closed we should have a handle for it");
-
- ev_io_stop(EV_DEFAULT_UC_ &h->read_watcher);
- ev_io_stop(EV_DEFAULT_UC_ &h->write_watcher);
-
- uv_remove_ares_handle(h);
- free(h);
-
- if (uv_ares_handles_empty()) {
- ev_timer_stop(EV_DEFAULT_UC_ &ares_data.timer);
- }
- }
-}
-
-
-/* c-ares integration initialize and terminate */
-/* TODO: share this with windows? */
-int uv_ares_init_options(ares_channel *channelptr,
- struct ares_options *options,
- int optmask) {
- int rc;
-
- /* only allow single init at a time */
- if (ares_data.channel != NULL) {
- uv_err_new_artificial(NULL, UV_EALREADY);
- return -1;
- }
-
- /* set our callback as an option */
- options->sock_state_cb = uv__ares_sockstate_cb;
- options->sock_state_cb_data = &ares_data;
- optmask |= ARES_OPT_SOCK_STATE_CB;
-
- /* We do the call to ares_init_option for caller. */
- rc = ares_init_options(channelptr, options, optmask);
-
- /* if success, save channel */
- if (rc == ARES_SUCCESS) {
- ares_data.channel = *channelptr;
- }
-
- /*
- * Initialize the timeout timer. The timer won't be started until the
- * first socket is opened.
- */
- ev_init(&ares_data.timer, uv__ares_timeout);
- ares_data.timer.repeat = 1.0;
-
- return rc;
-}
-
-
-/* TODO share this with windows? */
-void uv_ares_destroy(ares_channel channel) {
- /* only allow destroy if did init */
- if (ares_data.channel != NULL) {
- ev_timer_stop(EV_DEFAULT_UC_ &ares_data.timer);
- ares_destroy(channel);
- ares_data.channel = NULL;
- }
-}
-
-
-static int uv_getaddrinfo_done(eio_req* req) {
- uv_getaddrinfo_t* handle = req->data;
-
- uv_unref();
-
- free(handle->hints);
- free(handle->service);
- free(handle->hostname);
-
- if (handle->retcode != 0) {
- /* TODO how to display gai error strings? */
- uv_err_new(NULL, handle->retcode);
- }
-
- handle->cb(handle, handle->retcode, handle->res);
-
- freeaddrinfo(handle->res);
- handle->res = NULL;
-
- return 0;
-}
-
-
-static int getaddrinfo_thread_proc(eio_req *req) {
- uv_getaddrinfo_t* handle = req->data;
-
- handle->retcode = getaddrinfo(handle->hostname,
- handle->service,
- &handle->hints,
- &handle->res);
- return 0;
-}
-
-
-/* stub implementation of uv_getaddrinfo */
-int uv_getaddrinfo(uv_getaddrinfo_t* handle,
- uv_getaddrinfo_cb cb,
- const char* hostname,
- const char* service,
- const struct addrinfo* hints) {
- uv_eio_init();
-
- if (handle == NULL || cb == NULL ||
- (hostname == NULL && service == NULL)) {
- uv_err_new_artificial(NULL, UV_EINVAL);
- return -1;
- }
-
- memset(handle, 0, sizeof(uv_getaddrinfo_t));
-
- /* TODO don't alloc so much. */
-
- if (hints) {
- handle->hints = malloc(sizeof(struct addrinfo));
- memcpy(&handle->hints, hints, sizeof(struct addrinfo));
- }
-
- /* TODO security! check lengths, check return values. */
-
- handle->cb = cb;
- handle->hostname = hostname ? strdup(hostname) : NULL;
- handle->service = service ? strdup(service) : NULL;
-
- /* TODO check handle->hostname == NULL */
- /* TODO check handle->service == NULL */
-
- uv_ref();
-
- eio_req* req = eio_custom(getaddrinfo_thread_proc, EIO_PRI_DEFAULT,
- uv_getaddrinfo_done, handle);
- assert(req);
- assert(req->data == handle);
-
- return 0;
-}
-
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#ifndef UV_UNIX_H
-#define UV_UNIX_H
-
-#include "ngx-queue.h"
-
-#include "ev/ev.h"
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-
-
-/* Note: May be cast to struct iovec. See writev(2). */
-typedef struct {
- char* base;
- size_t len;
-} uv_buf_t;
-
-#define UV_REQ_BUFSML_SIZE (4)
-
-#define UV_REQ_PRIVATE_FIELDS \
- int write_index; \
- ev_timer timer; \
- ngx_queue_t queue; \
- uv_buf_t* bufs; \
- int bufcnt; \
- uv_buf_t bufsml[UV_REQ_BUFSML_SIZE];
-
-
-/* TODO: union or classes please! */
-#define UV_HANDLE_PRIVATE_FIELDS \
- int fd; \
- int flags; \
- ev_idle next_watcher;
-
-
-#define UV_STREAM_PRIVATE_FIELDS \
- uv_read_cb read_cb; \
- uv_alloc_cb alloc_cb;
-
-
-/* UV_TCP */
-#define UV_TCP_PRIVATE_FIELDS \
- int delayed_error; \
- uv_connection_cb connection_cb; \
- int accepted_fd; \
- uv_req_t *connect_req; \
- uv_req_t *shutdown_req; \
- ev_io read_watcher; \
- ev_io write_watcher; \
- ngx_queue_t write_queue; \
- ngx_queue_t write_completed_queue;
-
-
-/* UV_PREPARE */ \
-#define UV_PREPARE_PRIVATE_FIELDS \
- ev_prepare prepare_watcher; \
- uv_prepare_cb prepare_cb;
-
-
-/* UV_CHECK */
-#define UV_CHECK_PRIVATE_FIELDS \
- ev_check check_watcher; \
- uv_check_cb check_cb;
-
-
-/* UV_IDLE */
-#define UV_IDLE_PRIVATE_FIELDS \
- ev_idle idle_watcher; \
- uv_idle_cb idle_cb;
-
-
-/* UV_ASYNC */
-#define UV_ASYNC_PRIVATE_FIELDS \
- ev_async async_watcher; \
- uv_async_cb async_cb;
-
-
-/* UV_TIMER */
-#define UV_TIMER_PRIVATE_FIELDS \
- ev_timer timer_watcher; \
- uv_timer_cb timer_cb;
-
-#define UV_ARES_TASK_PRIVATE_FIELDS \
- int sock; \
- ev_io read_watcher; \
- ev_io write_watcher;
-
-#define UV_GETADDRINFO_PRIVATE_FIELDS \
- uv_getaddrinfo_cb cb; \
- struct addrinfo* hints; \
- char* hostname; \
- char* service; \
- struct addrinfo* res; \
- int retcode;
-
-#endif /* UV_UNIX_H */
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include <assert.h>
-#include <errno.h>
-#include <limits.h>
-#include <malloc.h>
-#include <stdio.h>
-
-#include "uv.h"
-#include "uv-common.h"
-#include "tree.h"
-
-/*
- * Guids and typedefs for winsock extension functions
- * Mingw32 doesn't have these :-(
- */
-#ifndef WSAID_ACCEPTEX
-# define WSAID_ACCEPTEX \
- {0xb5367df1, 0xcbac, 0x11cf, \
- {0x95, 0xca, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}}
-
-# define WSAID_CONNECTEX \
- {0x25a207b9, 0xddf3, 0x4660, \
- {0x8e, 0xe9, 0x76, 0xe5, 0x8c, 0x74, 0x06, 0x3e}}
-
-# define WSAID_GETACCEPTEXSOCKADDRS \
- {0xb5367df2, 0xcbac, 0x11cf, \
- {0x95, 0xca, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}}
-
-# define WSAID_DISCONNECTEX \
- {0x7fda2e11, 0x8630, 0x436f, \
- {0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
-
-# define WSAID_TRANSMITFILE \
- {0xb5367df0, 0xcbac, 0x11cf, \
- {0x95, 0xca, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}}
-
- typedef BOOL PASCAL (*LPFN_ACCEPTEX)
- (SOCKET sListenSocket,
- SOCKET sAcceptSocket,
- PVOID lpOutputBuffer,
- DWORD dwReceiveDataLength,
- DWORD dwLocalAddressLength,
- DWORD dwRemoteAddressLength,
- LPDWORD lpdwBytesReceived,
- LPOVERLAPPED lpOverlapped);
-
- typedef BOOL PASCAL (*LPFN_CONNECTEX)
- (SOCKET s,
- const struct sockaddr* name,
- int namelen,
- PVOID lpSendBuffer,
- DWORD dwSendDataLength,
- LPDWORD lpdwBytesSent,
- LPOVERLAPPED lpOverlapped);
-
- typedef void PASCAL (*LPFN_GETACCEPTEXSOCKADDRS)
- (PVOID lpOutputBuffer,
- DWORD dwReceiveDataLength,
- DWORD dwLocalAddressLength,
- DWORD dwRemoteAddressLength,
- LPSOCKADDR* LocalSockaddr,
- LPINT LocalSockaddrLength,
- LPSOCKADDR* RemoteSockaddr,
- LPINT RemoteSockaddrLength);
-
- typedef BOOL PASCAL (*LPFN_DISCONNECTEX)
- (SOCKET hSocket,
- LPOVERLAPPED lpOverlapped,
- DWORD dwFlags,
- DWORD reserved);
-
- typedef BOOL PASCAL (*LPFN_TRANSMITFILE)
- (SOCKET hSocket,
- HANDLE hFile,
- DWORD nNumberOfBytesToWrite,
- DWORD nNumberOfBytesPerSend,
- LPOVERLAPPED lpOverlapped,
- LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers,
- DWORD dwFlags);
-#endif
-
-/*
- * MinGW is missing this too
- */
-#ifndef SO_UPDATE_CONNECT_CONTEXT
-# define SO_UPDATE_CONNECT_CONTEXT 0x7010
-#endif
-
-
-/*
- * MinGW is missing this too
- */
-#ifndef _MSC_VER
- typedef struct addrinfoW {
- int ai_flags;
- int ai_family;
- int ai_socktype;
- int ai_protocol;
- size_t ai_addrlen;
- wchar_t* ai_canonname;
- struct sockaddr* ai_addr;
- struct addrinfoW* ai_next;
- } ADDRINFOW, *PADDRINFOW;
-
- DECLSPEC_IMPORT int WSAAPI GetAddrInfoW(const wchar_t* node,
- const wchar_t* service,
- const ADDRINFOW* hints,
- PADDRINFOW* result);
-
- DECLSPEC_IMPORT void WSAAPI FreeAddrInfoW(PADDRINFOW pAddrInfo);
-#endif
-
-
-/*
- * Pointers to winsock extension functions to be retrieved dynamically
- */
-static LPFN_CONNECTEX pConnectEx;
-static LPFN_ACCEPTEX pAcceptEx;
-static LPFN_GETACCEPTEXSOCKADDRS pGetAcceptExSockAddrs;
-static LPFN_DISCONNECTEX pDisconnectEx;
-static LPFN_TRANSMITFILE pTransmitFile;
-/* need IPv6 versions of winsock extension functions */
-static LPFN_CONNECTEX pConnectEx6;
-static LPFN_ACCEPTEX pAcceptEx6;
-static LPFN_GETACCEPTEXSOCKADDRS pGetAcceptExSockAddrs6;
-static LPFN_DISCONNECTEX pDisconnectEx6;
-static LPFN_TRANSMITFILE pTransmitFile6;
-
-
-/*
- * Private uv_handle flags
- */
-#define UV_HANDLE_CLOSING 0x0001
-#define UV_HANDLE_CLOSED 0x0002
-#define UV_HANDLE_BOUND 0x0004
-#define UV_HANDLE_LISTENING 0x0008
-#define UV_HANDLE_CONNECTION 0x0010
-#define UV_HANDLE_CONNECTED 0x0020
-#define UV_HANDLE_READING 0x0040
-#define UV_HANDLE_ACTIVE 0x0040
-#define UV_HANDLE_EOF 0x0080
-#define UV_HANDLE_SHUTTING 0x0100
-#define UV_HANDLE_SHUT 0x0200
-#define UV_HANDLE_ENDGAME_QUEUED 0x0400
-#define UV_HANDLE_BIND_ERROR 0x1000
-#define UV_HANDLE_IPV6 0x2000
-
-/*
- * Private uv_req flags.
- */
-/* The request is currently queued. */
-#define UV_REQ_PENDING 0x01
-
-
-/* Binary tree used to keep the list of timers sorted. */
-static int uv_timer_compare(uv_timer_t* handle1, uv_timer_t* handle2);
-RB_HEAD(uv_timer_tree_s, uv_timer_s);
-RB_PROTOTYPE_STATIC(uv_timer_tree_s, uv_timer_s, tree_entry, uv_timer_compare)
-
-/* The head of the timers tree */
-static struct uv_timer_tree_s uv_timers_ = RB_INITIALIZER(uv_timers_);
-
-
-/* Head of a single-linked list of closed handles */
-static uv_handle_t* uv_endgame_handles_ = NULL;
-
-
-/* Tail of a single-linked circular queue of pending reqs. If the queue is */
-/* empty, tail_ is NULL. If there is only one item, tail_->next_req == tail_ */
-static uv_req_t* uv_pending_reqs_tail_ = NULL;
-
-
-/* The current time according to the event loop. in msecs. */
-static int64_t uv_now_ = 0;
-static int64_t uv_ticks_per_msec_ = 0;
-
-
-/*
- * Global I/O completion port
- */
-static HANDLE uv_iocp_;
-
-
-/* Global error code */
-static const uv_err_t uv_ok_ = { UV_OK, ERROR_SUCCESS };
-static uv_err_t uv_last_error_ = { UV_OK, ERROR_SUCCESS };
-
-/* Error message string */
-static char* uv_err_str_ = NULL;
-
-
-/* Reference count that keeps the event loop alive */
-static int uv_refs_ = 0;
-
-
-/* Ip address used to bind to any port at any interface */
-static struct sockaddr_in uv_addr_ip4_any_;
-static struct sockaddr_in6 uv_addr_ip6_any_;
-
-
-/* A zero-size buffer for use by uv_read */
-static char uv_zero_[] = "";
-
-
-/*
- * Subclass of uv_handle_t. Used for integration of c-ares.
- */
-typedef struct uv_ares_action_s uv_ares_action_t;
-
-struct uv_ares_action_s {
- UV_HANDLE_FIELDS
- struct uv_req_s ares_req;
- SOCKET sock;
- int read;
- int write;
-};
-
-void uv_ares_process(uv_ares_action_t* handle, uv_req_t* req);
-void uv_ares_task_cleanup(uv_ares_task_t* handle, uv_req_t* req);
-void uv_ares_poll(uv_timer_t* handle, int status);
-
-/* memory used per ares_channel */
-struct uv_ares_channel_s {
- ares_channel channel;
- int activesockets;
- uv_timer_t pollingtimer;
-};
-
-typedef struct uv_ares_channel_s uv_ares_channel_t;
-
-/* static data to hold single ares_channel */
-static uv_ares_channel_t uv_ares_data = { NULL, 0 };
-
-/* default timeout per socket request if ares does not specify value */
-/* use 20 sec */
-#define ARES_TIMEOUT_MS 20000
-
-
-/* getaddrinfo integration */
-static void uv_getaddrinfo_done(uv_getaddrinfo_t* handle, uv_req_t* req);
-/* adjust size value to be multiple of 4. Use to keep pointer aligned */
-/* Do we need different versions of this for different architectures? */
-#define ALIGNED_SIZE(X) ((((X) + 3) >> 2) << 2)
-
-
-/* Atomic set operation on char */
-#ifdef _MSC_VER /* MSVC */
-
-/* _InterlockedOr8 is supported by MSVC on x32 and x64. It is slightly less */
-/* efficient than InterlockedExchange, but InterlockedExchange8 does not */
-/* exist, and interlocked operations on larger targets might require the */
-/* target to be aligned. */
-#pragma intrinsic(_InterlockedOr8)
-
-static char __declspec(inline) uv_atomic_exchange_set(char volatile* target) {
- return _InterlockedOr8(target, 1);
-}
-
-#else /* GCC */
-
-/* Mingw-32 version, hopefully this works for 64-bit gcc as well. */
-static inline char uv_atomic_exchange_set(char volatile* target) {
- const char one = 1;
- char old_value;
- __asm__ __volatile__ ("lock xchgb %0, %1\n\t"
- : "=r"(old_value), "=m"(*target)
- : "0"(one), "m"(*target)
- : "memory");
- return old_value;
-}
-
-#endif
-
-
-/*
- * Display an error message and abort the event loop.
- */
-static void uv_fatal_error(const int errorno, const char* syscall) {
- char* buf = NULL;
- const char* errmsg;
-
- FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
- FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&buf, 0, NULL);
-
- if (buf) {
- errmsg = buf;
- } else {
- errmsg = "Unknown error";
- }
-
- /* FormatMessage messages include a newline character already, */
- /* so don't add another. */
- if (syscall) {
- fprintf(stderr, "%s: (%d) %s", syscall, errorno, errmsg);
- } else {
- fprintf(stderr, "(%d) %s", errorno, errmsg);
- }
-
- if (buf) {
- LocalFree(buf);
- }
-
- *((char*)NULL) = 0xff; /* Force debug break */
- abort();
-}
-
-
-uv_err_t uv_last_error() {
- return uv_last_error_;
-}
-
-
-char* uv_strerror(uv_err_t err) {
- if (uv_err_str_ != NULL) {
- LocalFree((void*) uv_err_str_);
- }
-
- FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
- FORMAT_MESSAGE_IGNORE_INSERTS, NULL, err.sys_errno_,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&uv_err_str_, 0, NULL);
-
- if (uv_err_str_) {
- return uv_err_str_;
- } else {
- return "Unknown error";
- }
-}
-
-
-static uv_err_code uv_translate_sys_error(int sys_errno) {
- switch (sys_errno) {
- case ERROR_SUCCESS: return UV_OK;
- case ERROR_NOACCESS: return UV_EACCESS;
- case WSAEACCES: return UV_EACCESS;
- case ERROR_ADDRESS_ALREADY_ASSOCIATED: return UV_EADDRINUSE;
- case WSAEADDRINUSE: return UV_EADDRINUSE;
- case WSAEADDRNOTAVAIL: return UV_EADDRNOTAVAIL;
- case WSAEWOULDBLOCK: return UV_EAGAIN;
- case WSAEALREADY: return UV_EALREADY;
- case ERROR_CONNECTION_REFUSED: return UV_ECONNREFUSED;
- case WSAECONNREFUSED: return UV_ECONNREFUSED;
- case WSAEFAULT: return UV_EFAULT;
- case ERROR_INVALID_DATA: return UV_EINVAL;
- case WSAEINVAL: return UV_EINVAL;
- case ERROR_TOO_MANY_OPEN_FILES: return UV_EMFILE;
- case WSAEMFILE: return UV_EMFILE;
- case ERROR_OUTOFMEMORY: return UV_ENOMEM;
- case ERROR_INSUFFICIENT_BUFFER: return UV_EINVAL;
- case ERROR_INVALID_FLAGS: return UV_EBADF;
- case ERROR_INVALID_PARAMETER: return UV_EINVAL;
- case ERROR_NO_UNICODE_TRANSLATION: return UV_ECHARSET;
- default: return UV_UNKNOWN;
- }
-}
-
-
-static uv_err_t uv_new_sys_error(int sys_errno) {
- uv_err_t e;
- e.code = uv_translate_sys_error(sys_errno);
- e.sys_errno_ = sys_errno;
- return e;
-}
-
-
-static void uv_set_sys_error(int sys_errno) {
- uv_last_error_.code = uv_translate_sys_error(sys_errno);
- uv_last_error_.sys_errno_ = sys_errno;
-}
-
-
-/*
- * Retrieves the pointer to a winsock extension function.
- */
-static void uv_get_extension_function(SOCKET socket, GUID guid,
- void **target) {
- DWORD result, bytes;
-
- result = WSAIoctl(socket,
- SIO_GET_EXTENSION_FUNCTION_POINTER,
- &guid,
- sizeof(guid),
- (void*)target,
- sizeof(*target),
- &bytes,
- NULL,
- NULL);
-
- if (result == SOCKET_ERROR) {
- *target = NULL;
- uv_fatal_error(WSAGetLastError(),
- "WSAIoctl(SIO_GET_EXTENSION_FUNCTION_POINTER)");
- }
-}
-
-
-void uv_init() {
- const GUID wsaid_connectex = WSAID_CONNECTEX;
- const GUID wsaid_acceptex = WSAID_ACCEPTEX;
- const GUID wsaid_getacceptexsockaddrs = WSAID_GETACCEPTEXSOCKADDRS;
- const GUID wsaid_disconnectex = WSAID_DISCONNECTEX;
- const GUID wsaid_transmitfile = WSAID_TRANSMITFILE;
-
- WSADATA wsa_data;
- int errorno;
- LARGE_INTEGER timer_frequency;
- SOCKET dummy;
- SOCKET dummy6;
-
- /* Initialize winsock */
- errorno = WSAStartup(MAKEWORD(2, 2), &wsa_data);
- if (errorno != 0) {
- uv_fatal_error(errorno, "WSAStartup");
- }
-
- /* Set implicit binding address used by connectEx */
- uv_addr_ip4_any_ = uv_ip4_addr("0.0.0.0", 0);
- uv_addr_ip6_any_ = uv_ip6_addr("::1", 0);
-
- /* Retrieve the needed winsock extension function pointers. */
- dummy = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
- if (dummy == INVALID_SOCKET) {
- uv_fatal_error(WSAGetLastError(), "socket");
- }
-
- uv_get_extension_function(dummy,
- wsaid_connectex,
- (void**)&pConnectEx);
- uv_get_extension_function(dummy,
- wsaid_acceptex,
- (void**)&pAcceptEx);
- uv_get_extension_function(dummy,
- wsaid_getacceptexsockaddrs,
- (void**)&pGetAcceptExSockAddrs);
- uv_get_extension_function(dummy,
- wsaid_disconnectex,
- (void**)&pDisconnectEx);
- uv_get_extension_function(dummy,
- wsaid_transmitfile,
- (void**)&pTransmitFile);
-
- if (closesocket(dummy) == SOCKET_ERROR) {
- uv_fatal_error(WSAGetLastError(), "closesocket");
- }
-
-/* need IPv6 versions of winsock extension functions */
- dummy6 = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
- if (dummy == INVALID_SOCKET) {
- uv_fatal_error(WSAGetLastError(), "socket");
- }
-
- uv_get_extension_function(dummy6,
- wsaid_connectex,
- (void**)&pConnectEx6);
- uv_get_extension_function(dummy6,
- wsaid_acceptex,
- (void**)&pAcceptEx6);
- uv_get_extension_function(dummy6,
- wsaid_getacceptexsockaddrs,
- (void**)&pGetAcceptExSockAddrs6);
- uv_get_extension_function(dummy6,
- wsaid_disconnectex,
- (void**)&pDisconnectEx6);
- uv_get_extension_function(dummy6,
- wsaid_transmitfile,
- (void**)&pTransmitFile6);
-
- if (closesocket(dummy6) == SOCKET_ERROR) {
- uv_fatal_error(WSAGetLastError(), "closesocket");
- }
-
-
- /* Create an I/O completion port */
- uv_iocp_ = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1);
- if (uv_iocp_ == NULL) {
- uv_fatal_error(GetLastError(), "CreateIoCompletionPort");
- }
-
- /* Initialize the event loop time */
- if (!QueryPerformanceFrequency(&timer_frequency))
- uv_fatal_error(GetLastError(), "QueryPerformanceFrequency");
- uv_ticks_per_msec_ = timer_frequency.QuadPart / 1000;
-
- uv_update_time();
-}
-
-
-void uv_req_init(uv_req_t* req, uv_handle_t* handle, void* cb) {
- uv_counters()->req_init++;
- req->type = UV_UNKNOWN_REQ;
- req->flags = 0;
- req->handle = handle;
- req->cb = cb;
-}
-
-
-static uv_req_t* uv_overlapped_to_req(OVERLAPPED* overlapped) {
- return CONTAINING_RECORD(overlapped, uv_req_t, overlapped);
-}
-
-
-static void uv_insert_pending_req(uv_req_t* req) {
- req->next_req = NULL;
- if (uv_pending_reqs_tail_) {
- req->next_req = uv_pending_reqs_tail_->next_req;
- uv_pending_reqs_tail_ = req;
- } else {
- req->next_req = req;
- uv_pending_reqs_tail_ = req;
- }
-}
-
-
-static uv_req_t* uv_remove_pending_req() {
- uv_req_t* req;
-
- if (uv_pending_reqs_tail_) {
- req = uv_pending_reqs_tail_->next_req;
-
- if (req == uv_pending_reqs_tail_) {
- uv_pending_reqs_tail_ = NULL;
- } else {
- uv_pending_reqs_tail_->next_req = req->next_req;
- }
-
- return req;
-
- } else {
- /* queue empty */
- return NULL;
- }
-}
-
-
-static int uv_tcp_set_socket(uv_tcp_t* handle, SOCKET socket) {
- DWORD yes = 1;
-
- assert(handle->socket == INVALID_SOCKET);
-
- /* Set the socket to nonblocking mode */
- if (ioctlsocket(socket, FIONBIO, &yes) == SOCKET_ERROR) {
- uv_set_sys_error(WSAGetLastError());
- return -1;
- }
-
- /* Make the socket non-inheritable */
- if (!SetHandleInformation((HANDLE)socket, HANDLE_FLAG_INHERIT, 0)) {
- uv_set_sys_error(GetLastError());
- return -1;
- }
-
- /* Associate it with the I/O completion port. */
- /* Use uv_handle_t pointer as completion key. */
- if (CreateIoCompletionPort((HANDLE)socket,
- uv_iocp_,
- (ULONG_PTR)socket,
- 0) == NULL) {
- uv_set_sys_error(GetLastError());
- return -1;
- }
-
- handle->socket = socket;
-
- return 0;
-}
-
-
-static void uv_tcp_init_connection(uv_tcp_t* handle) {
- handle->flags |= UV_HANDLE_CONNECTION;
- handle->write_reqs_pending = 0;
- uv_req_init(&(handle->read_req), (uv_handle_t*)handle, NULL);
-}
-
-
-int uv_tcp_init(uv_tcp_t* handle) {
- handle->socket = INVALID_SOCKET;
- handle->write_queue_size = 0;
- handle->type = UV_TCP;
- handle->flags = 0;
- handle->reqs_pending = 0;
- handle->error = uv_ok_;
- handle->accept_socket = INVALID_SOCKET;
-
- uv_counters()->handle_init++;
- uv_counters()->tcp_init++;
-
- uv_refs_++;
-
- return 0;
-}
-
-
-static void uv_tcp_endgame(uv_tcp_t* handle) {
- uv_err_t err;
- int status;
-
- if (handle->flags & UV_HANDLE_SHUTTING &&
- !(handle->flags & UV_HANDLE_SHUT) &&
- handle->write_reqs_pending == 0) {
-
- if (shutdown(handle->socket, SD_SEND) != SOCKET_ERROR) {
- status = 0;
- handle->flags |= UV_HANDLE_SHUT;
- } else {
- status = -1;
- err = uv_new_sys_error(WSAGetLastError());
- }
- if (handle->shutdown_req->cb) {
- handle->shutdown_req->flags &= ~UV_REQ_PENDING;
- if (status == -1) {
- uv_last_error_ = err;
- }
- ((uv_shutdown_cb)handle->shutdown_req->cb)(handle->shutdown_req, status);
- }
- handle->reqs_pending--;
- }
-
- if (handle->flags & UV_HANDLE_CLOSING &&
- handle->reqs_pending == 0) {
- assert(!(handle->flags & UV_HANDLE_CLOSED));
- handle->flags |= UV_HANDLE_CLOSED;
-
- if (handle->close_cb) {
- handle->close_cb((uv_handle_t*)handle);
- }
-
- uv_refs_--;
- }
-}
-
-
-static void uv_timer_endgame(uv_timer_t* handle) {
- if (handle->flags & UV_HANDLE_CLOSING) {
- assert(!(handle->flags & UV_HANDLE_CLOSED));
- handle->flags |= UV_HANDLE_CLOSED;
-
- if (handle->close_cb) {
- handle->close_cb((uv_handle_t*)handle);
- }
-
- uv_refs_--;
- }
-}
-
-
-static void uv_loop_watcher_endgame(uv_handle_t* handle) {
- if (handle->flags & UV_HANDLE_CLOSING) {
- assert(!(handle->flags & UV_HANDLE_CLOSED));
- handle->flags |= UV_HANDLE_CLOSED;
-
- if (handle->close_cb) {
- handle->close_cb(handle);
- }
-
- uv_refs_--;
- }
-}
-
-
-static void uv_async_endgame(uv_async_t* handle) {
- if (handle->flags & UV_HANDLE_CLOSING &&
- !handle->async_sent) {
- assert(!(handle->flags & UV_HANDLE_CLOSED));
- handle->flags |= UV_HANDLE_CLOSED;
-
- if (handle->close_cb) {
- handle->close_cb((uv_handle_t*)handle);
- }
-
- uv_refs_--;
- }
-}
-
-
-static void uv_process_endgames() {
- uv_handle_t* handle;
-
- while (uv_endgame_handles_) {
- handle = uv_endgame_handles_;
- uv_endgame_handles_ = handle->endgame_next;
-
- handle->flags &= ~UV_HANDLE_ENDGAME_QUEUED;
-
- switch (handle->type) {
- case UV_TCP:
- uv_tcp_endgame((uv_tcp_t*)handle);
- break;
-
- case UV_TIMER:
- uv_timer_endgame((uv_timer_t*)handle);
- break;
-
- case UV_PREPARE:
- case UV_CHECK:
- case UV_IDLE:
- uv_loop_watcher_endgame(handle);
- break;
-
- case UV_ASYNC:
- uv_async_endgame((uv_async_t*)handle);
- break;
-
- default:
- assert(0);
- break;
- }
- }
-}
-
-
-static void uv_want_endgame(uv_handle_t* handle) {
- if (!(handle->flags & UV_HANDLE_ENDGAME_QUEUED)) {
- handle->flags |= UV_HANDLE_ENDGAME_QUEUED;
-
- handle->endgame_next = uv_endgame_handles_;
- uv_endgame_handles_ = handle;
- }
-}
-
-
-static int uv_close_error(uv_handle_t* handle, uv_err_t e) {
- uv_tcp_t* tcp;
-
- if (handle->flags & UV_HANDLE_CLOSING) {
- return 0;
- }
-
- handle->error = e;
- handle->flags |= UV_HANDLE_CLOSING;
-
- /* Handle-specific close actions */
- switch (handle->type) {
- case UV_TCP:
- tcp = (uv_tcp_t*)handle;
- tcp->flags &= ~(UV_HANDLE_READING | UV_HANDLE_LISTENING);
- closesocket(tcp->socket);
- if (tcp->reqs_pending == 0) {
- uv_want_endgame(handle);
- }
- return 0;
-
- case UV_TIMER:
- uv_timer_stop((uv_timer_t*)handle);
- uv_want_endgame(handle);
- return 0;
-
- case UV_PREPARE:
- uv_prepare_stop((uv_prepare_t*)handle);
- uv_want_endgame(handle);
- return 0;
-
- case UV_CHECK:
- uv_check_stop((uv_check_t*)handle);
- uv_want_endgame(handle);
- return 0;
-
- case UV_IDLE:
- uv_idle_stop((uv_idle_t*)handle);
- uv_want_endgame(handle);
- return 0;
-
- case UV_ASYNC:
- if (!((uv_async_t*)handle)->async_sent) {
- uv_want_endgame(handle);
- }
- return 0;
-
- default:
- /* Not supported */
- assert(0);
- return -1;
- }
-}
-
-
-int uv_close(uv_handle_t* handle, uv_close_cb close_cb) {
- handle->close_cb = close_cb;
- return uv_close_error(handle, uv_ok_);
-}
-
-
-int uv__bind(uv_tcp_t* handle, int domain, struct sockaddr* addr, int addrsize) {
- DWORD err;
- int r;
- SOCKET sock;
-
- if (handle->socket == INVALID_SOCKET) {
- sock = socket(domain, SOCK_STREAM, 0);
- if (sock == INVALID_SOCKET) {
- uv_set_sys_error(WSAGetLastError());
- return -1;
- }
-
- if (uv_tcp_set_socket(handle, sock) == -1) {
- closesocket(sock);
- return -1;
- }
- }
-
- r = bind(handle->socket, addr, addrsize);
-
- if (r == SOCKET_ERROR) {
- err = WSAGetLastError();
- if (err == WSAEADDRINUSE) {
- /* Some errors are not to be reported until connect() or listen() */
- handle->error = uv_new_sys_error(err);
- handle->flags |= UV_HANDLE_BIND_ERROR;
- } else {
- uv_set_sys_error(err);
- return -1;
- }
- }
-
- handle->flags |= UV_HANDLE_BOUND;
-
- return 0;
-}
-
-
-int uv_tcp_bind(uv_tcp_t* handle, struct sockaddr_in addr) {
- if (addr.sin_family != AF_INET) {
- uv_set_sys_error(WSAEFAULT);
- return -1;
- }
-
- return uv__bind(handle, AF_INET, (struct sockaddr*)&addr, sizeof(struct sockaddr_in));
-}
-
-
-int uv_tcp_bind6(uv_tcp_t* handle, struct sockaddr_in6 addr) {
- if (addr.sin6_family != AF_INET6) {
- uv_set_sys_error(WSAEFAULT);
- return -1;
- }
- handle->flags |= UV_HANDLE_IPV6;
- return uv__bind(handle, AF_INET6, (struct sockaddr*)&addr, sizeof(struct sockaddr_in6));
-}
-
-
-static void uv_queue_accept(uv_tcp_t* handle) {
- uv_req_t* req;
- BOOL success;
- DWORD bytes;
- SOCKET accept_socket;
- short family;
- LPFN_ACCEPTEX pAcceptExFamily;
-
- assert(handle->flags & UV_HANDLE_LISTENING);
- assert(handle->accept_socket == INVALID_SOCKET);
-
- /* Prepare the uv_req structure. */
- req = &handle->accept_req;
- assert(!(req->flags & UV_REQ_PENDING));
- req->type = UV_ACCEPT;
- req->flags |= UV_REQ_PENDING;
-
- /* choose family and extension function */
- if ((handle->flags & UV_HANDLE_IPV6) != 0) {
- family = AF_INET6;
- pAcceptExFamily = pAcceptEx6;
- } else {
- family = AF_INET;
- pAcceptExFamily = pAcceptEx;
- }
-
- /* Open a socket for the accepted connection. */
- accept_socket = socket(family, SOCK_STREAM, 0);
- if (accept_socket == INVALID_SOCKET) {
- req->error = uv_new_sys_error(WSAGetLastError());
- uv_insert_pending_req(req);
- return;
- }
-
- /* Prepare the overlapped structure. */
- memset(&(req->overlapped), 0, sizeof(req->overlapped));
-
- success = pAcceptExFamily(handle->socket,
- accept_socket,
- (void*)&handle->accept_buffer,
- 0,
- sizeof(struct sockaddr_storage),
- sizeof(struct sockaddr_storage),
- &bytes,
- &req->overlapped);
-
- if (!success && WSAGetLastError() != ERROR_IO_PENDING) {
- /* Make this req pending reporting an error. */
- req->error = uv_new_sys_error(WSAGetLastError());
- uv_insert_pending_req(req);
- /* Destroy the preallocated client socket. */
- closesocket(accept_socket);
- return;
- }
-
- handle->accept_socket = accept_socket;
-
- handle->reqs_pending++;
- req->flags |= UV_REQ_PENDING;
-}
-
-
-static void uv_queue_read(uv_tcp_t* handle) {
- uv_req_t* req;
- uv_buf_t buf;
- int result;
- DWORD bytes, flags;
-
- assert(handle->flags & UV_HANDLE_READING);
-
- req = &handle->read_req;
- assert(!(req->flags & UV_REQ_PENDING));
- memset(&req->overlapped, 0, sizeof(req->overlapped));
- req->type = UV_READ;
-
- buf.base = (char*) &uv_zero_;
- buf.len = 0;
-
- flags = 0;
- result = WSARecv(handle->socket,
- (WSABUF*)&buf,
- 1,
- &bytes,
- &flags,
- &req->overlapped,
- NULL);
- if (result != 0 && WSAGetLastError() != ERROR_IO_PENDING) {
- /* Make this req pending reporting an error. */
- req->error = uv_new_sys_error(WSAGetLastError());
- uv_insert_pending_req(req);
- return;
- }
-
- req->flags |= UV_REQ_PENDING;
- handle->reqs_pending++;
-}
-
-
-int uv_tcp_listen(uv_tcp_t* handle, int backlog, uv_connection_cb cb) {
- assert(backlog > 0);
-
- if (handle->flags & UV_HANDLE_BIND_ERROR) {
- uv_last_error_ = handle->error;
- return -1;
- }
-
- if (handle->flags & UV_HANDLE_LISTENING ||
- handle->flags & UV_HANDLE_READING) {
- /* Already listening. */
- uv_set_sys_error(WSAEALREADY);
- return -1;
- }
-
- if (listen(handle->socket, backlog) == SOCKET_ERROR) {
- uv_set_sys_error(WSAGetLastError());
- return -1;
- }
-
- handle->flags |= UV_HANDLE_LISTENING;
- handle->connection_cb = cb;
-
- uv_req_init(&(handle->accept_req), (uv_handle_t*)handle, NULL);
- uv_queue_accept(handle);
-
- return 0;
-}
-
-
-int uv_accept(uv_handle_t* server, uv_stream_t* client) {
- int rv = 0;
- uv_tcp_t* tcpServer = (uv_tcp_t*)server;
- uv_tcp_t* tcpClient = (uv_tcp_t*)client;
-
- if (tcpServer->accept_socket == INVALID_SOCKET) {
- uv_set_sys_error(WSAENOTCONN);
- return -1;
- }
-
- if (uv_tcp_set_socket(tcpClient, tcpServer->accept_socket) == -1) {
- closesocket(tcpServer->accept_socket);
- rv = -1;
- } else {
- uv_tcp_init_connection(tcpClient);
- }
-
- tcpServer->accept_socket = INVALID_SOCKET;
-
- if (!(tcpServer->flags & UV_HANDLE_CLOSING)) {
- uv_queue_accept(tcpServer);
- }
-
- return rv;
-}
-
-
-int uv_read_start(uv_stream_t* handle, uv_alloc_cb alloc_cb, uv_read_cb read_cb) {
- if (!(handle->flags & UV_HANDLE_CONNECTION)) {
- uv_set_sys_error(WSAEINVAL);
- return -1;
- }
-
- if (handle->flags & UV_HANDLE_READING) {
- uv_set_sys_error(WSAEALREADY);
- return -1;
- }
-
- if (handle->flags & UV_HANDLE_EOF) {
- uv_set_sys_error(WSAESHUTDOWN);
- return -1;
- }
-
- handle->flags |= UV_HANDLE_READING;
- handle->read_cb = read_cb;
- handle->alloc_cb = alloc_cb;
-
- /* If reading was stopped and then started again, there could stell be a */
- /* read request pending. */
- if (!(handle->read_req.flags & UV_REQ_PENDING))
- uv_queue_read((uv_tcp_t*)handle);
-
- return 0;
-}
-
-
-int uv_read_stop(uv_stream_t* handle) {
- handle->flags &= ~UV_HANDLE_READING;
-
- return 0;
-}
-
-
-int uv_tcp_connect(uv_req_t* req, struct sockaddr_in addr) {
- int addrsize = sizeof(struct sockaddr_in);
- BOOL success;
- DWORD bytes;
- uv_tcp_t* handle = (uv_tcp_t*)req->handle;
-
- assert(!(req->flags & UV_REQ_PENDING));
-
- if (handle->flags & UV_HANDLE_BIND_ERROR) {
- uv_last_error_ = handle->error;
- return -1;
- }
-
- if (addr.sin_family != AF_INET) {
- uv_set_sys_error(WSAEFAULT);
- return -1;
- }
-
- if (!(handle->flags & UV_HANDLE_BOUND) &&
- uv_tcp_bind(handle, uv_addr_ip4_any_) < 0)
- return -1;
-
- memset(&req->overlapped, 0, sizeof(req->overlapped));
- req->type = UV_CONNECT;
-
- success = pConnectEx(handle->socket,
- (struct sockaddr*)&addr,
- addrsize,
- NULL,
- 0,
- &bytes,
- &req->overlapped);
-
- if (!success && WSAGetLastError() != ERROR_IO_PENDING) {
- uv_set_sys_error(WSAGetLastError());
- return -1;
- }
-
- req->flags |= UV_REQ_PENDING;
- handle->reqs_pending++;
-
- return 0;
-}
-
-
-int uv_tcp_connect6(uv_req_t* req, struct sockaddr_in6 addr) {
- int addrsize = sizeof(struct sockaddr_in6);
- BOOL success;
- DWORD bytes;
- uv_tcp_t* handle = (uv_tcp_t*)req->handle;
-
- assert(!(req->flags & UV_REQ_PENDING));
-
- if (handle->flags & UV_HANDLE_BIND_ERROR) {
- uv_last_error_ = handle->error;
- return -1;
- }
-
- if (addr.sin6_family != AF_INET6) {
- uv_set_sys_error(WSAEFAULT);
- return -1;
- }
-
- if (!(handle->flags & UV_HANDLE_BOUND) &&
- uv_tcp_bind6(handle, uv_addr_ip6_any_) < 0)
- return -1;
-
- memset(&req->overlapped, 0, sizeof(req->overlapped));
- req->type = UV_CONNECT;
-
- success = pConnectEx6(handle->socket,
- (struct sockaddr*)&addr,
- addrsize,
- NULL,
- 0,
- &bytes,
- &req->overlapped);
-
- if (!success && WSAGetLastError() != ERROR_IO_PENDING) {
- uv_set_sys_error(WSAGetLastError());
- return -1;
- }
-
- req->flags |= UV_REQ_PENDING;
- handle->reqs_pending++;
-
- return 0;
-}
-
-
-static size_t uv_count_bufs(uv_buf_t bufs[], int count) {
- size_t bytes = 0;
- int i;
-
- for (i = 0; i < count; i++) {
- bytes += (size_t)bufs[i].len;
- }
-
- return bytes;
-}
-
-
-int uv_write(uv_req_t* req, uv_buf_t bufs[], int bufcnt) {
- int result;
- DWORD bytes, err;
- uv_tcp_t* handle = (uv_tcp_t*) req->handle;
-
- assert(!(req->flags & UV_REQ_PENDING));
-
- if (!(req->handle->flags & UV_HANDLE_CONNECTION)) {
- uv_set_sys_error(WSAEINVAL);
- return -1;
- }
-
- if (req->handle->flags & UV_HANDLE_SHUTTING) {
- uv_set_sys_error(WSAESHUTDOWN);
- return -1;
- }
-
- memset(&req->overlapped, 0, sizeof(req->overlapped));
- req->type = UV_WRITE;
-
- result = WSASend(handle->socket,
- (WSABUF*)bufs,
- bufcnt,
- &bytes,
- 0,
- &req->overlapped,
- NULL);
- if (result != 0) {
- err = WSAGetLastError();
- if (err != WSA_IO_PENDING) {
- /* Send failed due to an error. */
- uv_set_sys_error(WSAGetLastError());
- return -1;
- }
- }
-
- if (result == 0) {
- /* Request completed immediately. */
- req->queued_bytes = 0;
- } else {
- /* Request queued by the kernel. */
- req->queued_bytes = uv_count_bufs(bufs, bufcnt);
- handle->write_queue_size += req->queued_bytes;
- }
-
- req->flags |= UV_REQ_PENDING;
- handle->reqs_pending++;
- handle->write_reqs_pending++;
-
- return 0;
-}
-
-
-int uv_shutdown(uv_req_t* req) {
- uv_tcp_t* handle = (uv_tcp_t*) req->handle;
- int status = 0;
-
- if (!(req->handle->flags & UV_HANDLE_CONNECTION)) {
- uv_set_sys_error(WSAEINVAL);
- return -1;
- }
-
- if (handle->flags & UV_HANDLE_SHUTTING) {
- uv_set_sys_error(WSAESHUTDOWN);
- return -1;
- }
-
- req->type = UV_SHUTDOWN;
- req->flags |= UV_REQ_PENDING;
-
- handle->flags |= UV_HANDLE_SHUTTING;
- handle->shutdown_req = req;
- handle->reqs_pending++;
-
- uv_want_endgame((uv_handle_t*)handle);
-
- return 0;
-}
-
-
-static void uv_tcp_return_req(uv_tcp_t* handle, uv_req_t* req) {
- DWORD bytes, flags, err;
- uv_buf_t buf;
-
- assert(handle->type == UV_TCP);
-
- /* Mark the request non-pending */
- req->flags &= ~UV_REQ_PENDING;
-
- switch (req->type) {
- case UV_WRITE:
- handle->write_queue_size -= req->queued_bytes;
- if (req->cb) {
- uv_last_error_ = req->error;
- ((uv_write_cb)req->cb)(req, uv_last_error_.code == UV_OK ? 0 : -1);
- }
- handle->write_reqs_pending--;
- if (handle->write_reqs_pending == 0 &&
- handle->flags & UV_HANDLE_SHUTTING) {
- uv_want_endgame((uv_handle_t*)handle);
- }
- break;
-
- case UV_READ:
- if (req->error.code != UV_OK) {
- /* An error occurred doing the 0-read. */
- if (!(handle->flags & UV_HANDLE_READING)) {
- break;
- }
-
- /* Stop reading and report error. */
- handle->flags &= ~UV_HANDLE_READING;
- uv_last_error_ = req->error;
- buf.base = 0;
- buf.len = 0;
- handle->read_cb((uv_stream_t*)handle, -1, buf);
- break;
- }
-
- /* Do nonblocking reads until the buffer is empty */
- while (handle->flags & UV_HANDLE_READING) {
- buf = handle->alloc_cb((uv_stream_t*)handle, 65536);
- assert(buf.len > 0);
- flags = 0;
- if (WSARecv(handle->socket,
- (WSABUF*)&buf,
- 1,
- &bytes,
- &flags,
- NULL,
- NULL) != SOCKET_ERROR) {
- if (bytes > 0) {
- /* Successful read */
- handle->read_cb((uv_stream_t*)handle, bytes, buf);
- /* Read again only if bytes == buf.len */
- if (bytes < buf.len) {
- break;
- }
- } else {
- /* Connection closed */
- handle->flags &= ~UV_HANDLE_READING;
- handle->flags |= UV_HANDLE_EOF;
- uv_last_error_.code = UV_EOF;
- uv_last_error_.sys_errno_ = ERROR_SUCCESS;
- handle->read_cb((uv_stream_t*)handle, -1, buf);
- break;
- }
- } else {
- err = WSAGetLastError();
- if (err == WSAEWOULDBLOCK) {
- /* Read buffer was completely empty, report a 0-byte read. */
- uv_set_sys_error(WSAEWOULDBLOCK);
- handle->read_cb((uv_stream_t*)handle, 0, buf);
- } else {
- /* Ouch! serious error. */
- uv_set_sys_error(err);
- handle->read_cb((uv_stream_t*)handle, -1, buf);
- }
- break;
- }
- }
- /* Post another 0-read if still reading and not closing. */
- if (handle->flags & UV_HANDLE_READING) {
- uv_queue_read(handle);
- }
- break;
-
- case UV_ACCEPT:
- /* If handle->accepted_socket is not a valid socket, then */
- /* uv_queue_accept must have failed. This is a serious error. We stop */
- /* accepting connections and report this error to the connection */
- /* callback. */
- if (handle->accept_socket == INVALID_SOCKET) {
- if (!(handle->flags & UV_HANDLE_LISTENING)) {
- break;
- }
- handle->flags &= ~UV_HANDLE_LISTENING;
- if (handle->connection_cb) {
- uv_last_error_ = req->error;
- handle->connection_cb((uv_handle_t*)handle, -1);
- }
- break;
- }
-
- if (req->error.code == UV_OK &&
- setsockopt(handle->accept_socket,
- SOL_SOCKET,
- SO_UPDATE_ACCEPT_CONTEXT,
- (char*)&handle->socket,
- sizeof(handle->socket)) == 0) {
- /* Accept and SO_UPDATE_ACCEPT_CONTEXT were successful. */
- if (handle->connection_cb) {
- handle->connection_cb((uv_handle_t*)handle, 0);
- }
- } else {
- /* Error related to accepted socket is ignored because the server */
- /* socket may still be healthy. If the server socket is broken
- /* uv_queue_accept will detect it. */
- closesocket(handle->accept_socket);
- if (handle->flags & UV_HANDLE_LISTENING) {
- uv_queue_accept(handle);
- }
- }
- break;
-
- case UV_CONNECT:
- if (req->cb) {
- if (req->error.code == UV_OK) {
- if (setsockopt(handle->socket,
- SOL_SOCKET,
- SO_UPDATE_CONNECT_CONTEXT,
- NULL,
- 0) == 0) {
- uv_tcp_init_connection(handle);
- ((uv_connect_cb)req->cb)(req, 0);
- } else {
- uv_set_sys_error(WSAGetLastError());
- ((uv_connect_cb)req->cb)(req, -1);
- }
- } else {
- uv_last_error_ = req->error;
- ((uv_connect_cb)req->cb)(req, -1);
- }
- }
- break;
-
- default:
- assert(0);
- }
-
- /* The number of pending requests is now down by one */
- handle->reqs_pending--;
-
- /* Queue the handle's close callback if it is closing and there are no */
- /* more pending requests. */
- if (handle->flags & UV_HANDLE_CLOSING &&
- handle->reqs_pending == 0) {
- uv_want_endgame((uv_handle_t*)handle);
- }
-}
-
-
-static int uv_timer_compare(uv_timer_t* a, uv_timer_t* b) {
- if (a->due < b->due)
- return -1;
- if (a->due > b->due)
- return 1;
- if ((intptr_t)a < (intptr_t)b)
- return -1;
- if ((intptr_t)a > (intptr_t)b)
- return 1;
- return 0;
-}
-
-
-RB_GENERATE_STATIC(uv_timer_tree_s, uv_timer_s, tree_entry, uv_timer_compare);
-
-
-int uv_timer_init(uv_timer_t* handle) {
- uv_counters()->handle_init++;
- uv_counters()->timer_init++;
-
- handle->type = UV_TIMER;
- handle->flags = 0;
- handle->error = uv_ok_;
- handle->timer_cb = NULL;
- handle->repeat = 0;
-
- uv_refs_++;
-
- return 0;
-}
-
-
-int uv_timer_start(uv_timer_t* handle, uv_timer_cb timer_cb, int64_t timeout, int64_t repeat) {
- if (handle->flags & UV_HANDLE_ACTIVE) {
- RB_REMOVE(uv_timer_tree_s, &uv_timers_, handle);
- }
-
- handle->timer_cb = (void*) timer_cb;
- handle->due = uv_now_ + timeout;
- handle->repeat = repeat;
- handle->flags |= UV_HANDLE_ACTIVE;
-
- if (RB_INSERT(uv_timer_tree_s, &uv_timers_, handle) != NULL) {
- uv_fatal_error(ERROR_INVALID_DATA, "RB_INSERT");
- }
-
- return 0;
-}
-
-
-int uv_timer_stop(uv_timer_t* handle) {
- if (!(handle->flags & UV_HANDLE_ACTIVE))
- return 0;
-
- RB_REMOVE(uv_timer_tree_s, &uv_timers_, handle);
-
- handle->flags &= ~UV_HANDLE_ACTIVE;
-
- return 0;
-}
-
-
-int uv_timer_again(uv_timer_t* handle) {
- /* If timer_cb is NULL that means that the timer was never started. */
- if (!handle->timer_cb) {
- uv_set_sys_error(ERROR_INVALID_DATA);
- return -1;
- }
-
- if (handle->flags & UV_HANDLE_ACTIVE) {
- RB_REMOVE(uv_timer_tree_s, &uv_timers_, handle);
- handle->flags &= ~UV_HANDLE_ACTIVE;
- }
-
- if (handle->repeat) {
- handle->due = uv_now_ + handle->repeat;
-
- if (RB_INSERT(uv_timer_tree_s, &uv_timers_, handle) != NULL) {
- uv_fatal_error(ERROR_INVALID_DATA, "RB_INSERT");
- }
-
- handle->flags |= UV_HANDLE_ACTIVE;
- }
-
- return 0;
-}
-
-
-void uv_timer_set_repeat(uv_timer_t* handle, int64_t repeat) {
- assert(handle->type == UV_TIMER);
- handle->repeat = repeat;
-}
-
-
-int64_t uv_timer_get_repeat(uv_timer_t* handle) {
- assert(handle->type == UV_TIMER);
- return handle->repeat;
-}
-
-
-void uv_update_time() {
- LARGE_INTEGER counter;
-
- if (!QueryPerformanceCounter(&counter))
- uv_fatal_error(GetLastError(), "QueryPerformanceCounter");
-
- uv_now_ = counter.QuadPart / uv_ticks_per_msec_;
-}
-
-
-int64_t uv_now() {
- return uv_now_;
-}
-
-
-#define UV_LOOP_WATCHER_DEFINE(name, NAME) \
- /* Lists of active loop (prepare / check / idle) watchers */ \
- static uv_##name##_t* uv_##name##_handles_ = NULL; \
- \
- /* This pointer will refer to the prepare/check/idle handle whose */ \
- /* callback is scheduled to be called next. This is needed to allow */ \
- /* safe removal from one of the lists above while that list being */ \
- /* iterated over. */ \
- static uv_##name##_t* uv_next_##name##_handle_ = NULL; \
- \
- \
- int uv_##name##_init(uv_##name##_t* handle) { \
- handle->type = UV_##NAME; \
- handle->flags = 0; \
- handle->error = uv_ok_; \
- \
- uv_refs_++; \
- \
- uv_counters()->handle_init++; \
- uv_counters()->prepare_init++; \
- \
- return 0; \
- } \
- \
- \
- int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) { \
- uv_##name##_t* old_head; \
- \
- assert(handle->type == UV_##NAME); \
- \
- if (handle->flags & UV_HANDLE_ACTIVE) \
- return 0; \
- \
- old_head = uv_##name##_handles_; \
- \
- handle->name##_next = old_head; \
- handle->name##_prev = NULL; \
- \
- if (old_head) { \
- old_head->name##_prev = handle; \
- } \
- \
- uv_##name##_handles_ = handle; \
- \
- handle->name##_cb = cb; \
- handle->flags |= UV_HANDLE_ACTIVE; \
- \
- return 0; \
- } \
- \
- \
- int uv_##name##_stop(uv_##name##_t* handle) { \
- assert(handle->type == UV_##NAME); \
- \
- if (!(handle->flags & UV_HANDLE_ACTIVE)) \
- return 0; \
- \
- /* Update loop head if needed */ \
- if (uv_##name##_handles_ == handle) { \
- uv_##name##_handles_ = handle->name##_next; \
- } \
- \
- /* Update the iterator-next pointer of needed */ \
- if (uv_next_##name##_handle_ == handle) { \
- uv_next_##name##_handle_ = handle->name##_next; \
- } \
- \
- if (handle->name##_prev) { \
- handle->name##_prev->name##_next = handle->name##_next; \
- } \
- if (handle->name##_next) { \
- handle->name##_next->name##_prev = handle->name##_prev; \
- } \
- \
- handle->flags &= ~UV_HANDLE_ACTIVE; \
- \
- return 0; \
- } \
- \
- \
- static void uv_##name##_invoke() { \
- uv_##name##_t* handle; \
- \
- uv_next_##name##_handle_ = uv_##name##_handles_; \
- \
- while (uv_next_##name##_handle_ != NULL) { \
- handle = uv_next_##name##_handle_; \
- uv_next_##name##_handle_ = handle->name##_next; \
- \
- handle->name##_cb(handle, 0); \
- } \
- }
-
-
-UV_LOOP_WATCHER_DEFINE(prepare, PREPARE)
-UV_LOOP_WATCHER_DEFINE(check, CHECK)
-UV_LOOP_WATCHER_DEFINE(idle, IDLE)
-
-
-int uv_is_active(uv_handle_t* handle) {
- switch (handle->type) {
- case UV_TIMER:
- case UV_IDLE:
- case UV_PREPARE:
- case UV_CHECK:
- return (handle->flags & UV_HANDLE_ACTIVE) ? 1 : 0;
-
- default:
- return 1;
- }
-}
-
-
-int uv_async_init(uv_async_t* handle, uv_async_cb async_cb) {
- uv_req_t* req;
-
- uv_counters()->handle_init++;
- uv_counters()->async_init++;
-
- handle->type = UV_ASYNC;
- handle->flags = 0;
- handle->async_sent = 0;
- handle->error = uv_ok_;
-
- req = &handle->async_req;
- uv_req_init(req, (uv_handle_t*)handle, async_cb);
- req->type = UV_WAKEUP;
-
- uv_refs_++;
-
- return 0;
-}
-
-
-int uv_async_send(uv_async_t* handle) {
- if (handle->type != UV_ASYNC) {
- /* Can't set errno because that's not thread-safe. */
- return -1;
- }
-
- /* The user should make sure never to call uv_async_send to a closing */
- /* or closed handle. */
- assert(!(handle->flags & UV_HANDLE_CLOSING));
-
- if (!uv_atomic_exchange_set(&handle->async_sent)) {
- if (!PostQueuedCompletionStatus(uv_iocp_,
- 0,
- 0,
- &handle->async_req.overlapped)) {
- uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
- }
- }
-
- return 0;
-}
-
-
-static void uv_async_return_req(uv_async_t* handle, uv_req_t* req) {
- assert(handle->type == UV_ASYNC);
- assert(req->type == UV_WAKEUP);
-
- handle->async_sent = 0;
- if (req->cb) {
- ((uv_async_cb)req->cb)((uv_async_t*) handle, 0);
- }
- if (handle->flags & UV_HANDLE_CLOSING) {
- uv_want_endgame((uv_handle_t*)handle);
- }
-}
-
-
-static void uv_process_reqs() {
- uv_req_t* req;
- uv_handle_t* handle;
-
- while (req = uv_remove_pending_req()) {
- handle = req->handle;
-
- switch (handle->type) {
- case UV_TCP:
- uv_tcp_return_req((uv_tcp_t*)handle, req);
- break;
-
- case UV_ASYNC:
- uv_async_return_req((uv_async_t*)handle, req);
- break;
-
- case UV_ARES:
- uv_ares_process((uv_ares_action_t*)handle, req);
- break;
-
- case UV_ARES_TASK:
- uv_ares_task_cleanup((uv_ares_task_t*)handle, req);
- break;
-
- case UV_GETADDRINFO:
- uv_getaddrinfo_done((uv_getaddrinfo_t*)handle, req);
- break;
-
- default:
- assert(0);
- }
- }
-}
-
-
-static void uv_process_timers() {
- uv_timer_t* timer;
-
- /* Call timer callbacks */
- for (timer = RB_MIN(uv_timer_tree_s, &uv_timers_);
- timer != NULL && timer->due <= uv_now_;
- timer = RB_MIN(uv_timer_tree_s, &uv_timers_)) {
- RB_REMOVE(uv_timer_tree_s, &uv_timers_, timer);
-
- if (timer->repeat != 0) {
- /* If it is a repeating timer, reschedule with repeat timeout. */
- timer->due += timer->repeat;
- if (timer->due < uv_now_) {
- timer->due = uv_now_;
- }
- if (RB_INSERT(uv_timer_tree_s, &uv_timers_, timer) != NULL) {
- uv_fatal_error(ERROR_INVALID_DATA, "RB_INSERT");
- }
- } else {
- /* If non-repeating, mark the timer as inactive. */
- timer->flags &= ~UV_HANDLE_ACTIVE;
- }
-
- timer->timer_cb((uv_timer_t*) timer, 0);
- }
-}
-
-
-static DWORD uv_get_poll_timeout() {
- uv_timer_t* timer;
- int64_t delta;
-
- /* Check if there are any running timers */
- timer = RB_MIN(uv_timer_tree_s, &uv_timers_);
- if (timer) {
- uv_update_time();
-
- delta = timer->due - uv_now_;
- if (delta >= UINT_MAX) {
- /* Can't have a timeout greater than UINT_MAX, and a timeout value of */
- /* UINT_MAX means infinite, so that's no good either. */
- return UINT_MAX - 1;
- } else if (delta < 0) {
- /* Negative timeout values are not allowed */
- return 0;
- } else {
- return (DWORD)delta;
- }
- } else {
- /* No timers */
- return INFINITE;
- }
-}
-
-
-static void uv_poll() {
- BOOL success;
- DWORD bytes;
- ULONG_PTR key;
- OVERLAPPED* overlapped;
- uv_req_t* req;
-
- success = GetQueuedCompletionStatus(uv_iocp_,
- &bytes,
- &key,
- &overlapped,
- uv_get_poll_timeout());
-
- uv_update_time();
-
- if (overlapped) {
- /* Package was dequeued */
- req = uv_overlapped_to_req(overlapped);
-
- if (success) {
- req->error = uv_ok_;
- } else {
- req->error = uv_new_sys_error(GetLastError());
- }
-
- uv_insert_pending_req(req);
-
- } else if (GetLastError() != WAIT_TIMEOUT) {
- /* Serious error */
- uv_fatal_error(GetLastError(), "GetQueuedCompletionStatus");
- }
-}
-
-
-int uv_run() {
- while (1) {
- uv_update_time();
- uv_process_timers();
-
- /* Terrible: please fix me! */
- while (uv_refs_ > 0 &&
- (uv_idle_handles_ || uv_pending_reqs_tail_ || uv_endgame_handles_)) {
- /* Terrible: please fix me! */
- while (uv_pending_reqs_tail_ || uv_endgame_handles_) {
- uv_process_endgames();
- uv_process_reqs();
- }
-
- /* Call idle callbacks */
- uv_idle_invoke();
- }
-
- if (uv_refs_ <= 0) {
- break;
- }
-
- uv_prepare_invoke();
-
- uv_poll();
-
- uv_check_invoke();
- }
-
- assert(uv_refs_ == 0);
- return 0;
-}
-
-
-void uv_ref() {
- uv_refs_++;
-}
-
-
-void uv_unref() {
- uv_refs_--;
-}
-
-
-int uv_utf16_to_utf8(wchar_t* utf16Buffer, size_t utf16Size, char* utf8Buffer, size_t utf8Size) {
- return WideCharToMultiByte(CP_UTF8, 0, utf16Buffer, utf16Size, utf8Buffer, utf8Size, NULL, NULL);
-}
-
-int uv_utf8_to_utf16(const char* utf8Buffer, wchar_t* utf16Buffer, size_t utf16Size) {
- return MultiByteToWideChar(CP_UTF8, 0, utf8Buffer, -1, utf16Buffer, utf16Size);
-}
-
-
-int uv_exepath(char* buffer, size_t* size) {
- int retVal;
- size_t utf16Size;
- wchar_t* utf16Buffer;
-
- if (!buffer || !size) {
- return -1;
- }
-
- utf16Buffer = (wchar_t*)malloc(sizeof(wchar_t) * *size);
- if (!utf16Buffer) {
- retVal = -1;
- goto done;
- }
-
- /* Get the path as UTF-16 */
- utf16Size = GetModuleFileNameW(NULL, utf16Buffer, *size - 1);
- if (utf16Size <= 0) {
- uv_set_sys_error(GetLastError());
- retVal = -1;
- goto done;
- }
-
- utf16Buffer[utf16Size] = L'\0';
-
- /* Convert to UTF-8 */
- *size = uv_utf16_to_utf8(utf16Buffer, utf16Size, buffer, *size);
- if (!*size) {
- uv_set_sys_error(GetLastError());
- retVal = -1;
- goto done;
- }
-
- buffer[*size] = '\0';
- retVal = 0;
-
-done:
- if (utf16Buffer) {
- free(utf16Buffer);
- }
-
- return retVal;
-}
-
-
-uint64_t uv_hrtime(void) {
- assert(0 && "implement me");
-}
-
-
-/* thread pool callback when socket is signalled */
-VOID CALLBACK uv_ares_socksignal_tp(void* parameter, BOOLEAN timerfired) {
- WSANETWORKEVENTS network_events;
- uv_ares_task_t* sockhandle;
- uv_ares_action_t* selhandle;
- uv_req_t* uv_ares_req;
-
- assert(parameter != NULL);
-
- if (parameter != NULL) {
- sockhandle = (uv_ares_task_t*)parameter;
-
- /* clear socket status for this event */
- /* do not fail if error, thread may run after socket close */
- /* The code assumes that c-ares will write all pending data in the callback,
- unless the socket would block. We can clear the state here to avoid unecessary
- signals. */
- WSAEnumNetworkEvents(sockhandle->sock, sockhandle->h_event, &network_events);
-
- /* setup new handle */
- selhandle = (uv_ares_action_t*)malloc(sizeof(uv_ares_action_t));
- if (selhandle == NULL) {
- uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
- }
- selhandle->type = UV_ARES;
- selhandle->close_cb = NULL;
- selhandle->data = sockhandle->data;
- selhandle->sock = sockhandle->sock;
- selhandle->read = (network_events.lNetworkEvents & (FD_READ | FD_CONNECT)) ? 1 : 0;
- selhandle->write = (network_events.lNetworkEvents & (FD_WRITE | FD_CONNECT)) ? 1 : 0;
-
- uv_ares_req = &selhandle->ares_req;
- uv_req_init(uv_ares_req, (uv_handle_t*)selhandle, NULL);
- uv_ares_req->type = UV_WAKEUP;
-
- /* post ares needs to called */
- if (!PostQueuedCompletionStatus(uv_iocp_,
- 0,
- 0,
- &uv_ares_req->overlapped)) {
- uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
- }
- }
-}
-
-/* callback from ares when socket operation is started */
-void uv_ares_sockstate_cb(void *data, ares_socket_t sock, int read, int write) {
- /* look to see if we have a handle for this socket in our list */
- uv_ares_task_t* uv_handle_ares = uv_find_ares_handle(sock);
- uv_ares_channel_t* uv_ares_data_ptr = (uv_ares_channel_t*)data;
-
- struct timeval tv;
- struct timeval* tvptr;
- int timeoutms = 0;
-
- if (read == 0 && write == 0) {
- /* if read and write are 0, cleanup existing data */
- /* The code assumes that c-ares does a callback with read = 0 and write = 0
- when the socket is closed. After we recieve this we stop monitoring the socket. */
- if (uv_handle_ares != NULL) {
- uv_req_t* uv_ares_req;
-
- uv_handle_ares->h_close_event = CreateEvent(NULL, FALSE, FALSE, NULL);
- /* remove Wait */
- if (uv_handle_ares->h_wait) {
- UnregisterWaitEx(uv_handle_ares->h_wait, uv_handle_ares->h_close_event);
- uv_handle_ares->h_wait = NULL;
- }
-
- /* detach socket from the event */
- WSAEventSelect(sock, NULL, 0);
- if (uv_handle_ares->h_event != WSA_INVALID_EVENT) {
- WSACloseEvent(uv_handle_ares->h_event);
- uv_handle_ares->h_event = WSA_INVALID_EVENT;
- }
- /* remove handle from list */
- uv_remove_ares_handle(uv_handle_ares);
-
- /* Post request to cleanup the Task */
- uv_ares_req = &uv_handle_ares->ares_req;
- uv_req_init(uv_ares_req, (uv_handle_t*)uv_handle_ares, NULL);
- uv_ares_req->type = UV_WAKEUP;
-
- /* post ares done with socket - finish cleanup when all threads done. */
- if (!PostQueuedCompletionStatus(uv_iocp_,
- 0,
- 0,
- &uv_ares_req->overlapped)) {
- uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
- }
- } else {
- assert(0);
- uv_fatal_error(ERROR_INVALID_DATA, "ares_SockStateCB");
- }
- } else {
- if (uv_handle_ares == NULL) {
- /* setup new handle */
- /* The code assumes that c-ares will call us when it has an open socket.
- We need to call into c-ares when there is something to read,
- or when it becomes writable. */
- uv_handle_ares = (uv_ares_task_t*)malloc(sizeof(uv_ares_task_t));
- if (uv_handle_ares == NULL) {
- uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
- }
- uv_handle_ares->type = UV_ARES_TASK;
- uv_handle_ares->close_cb = NULL;
- uv_handle_ares->data = uv_ares_data_ptr;
- uv_handle_ares->sock = sock;
- uv_handle_ares->h_wait = NULL;
- uv_handle_ares->flags = 0;
-
- /* create an event to wait on socket signal */
- uv_handle_ares->h_event = WSACreateEvent();
- if (uv_handle_ares->h_event == WSA_INVALID_EVENT) {
- uv_fatal_error(WSAGetLastError(), "WSACreateEvent");
- }
-
- /* tie event to socket */
- if (SOCKET_ERROR == WSAEventSelect(sock, uv_handle_ares->h_event, FD_READ | FD_WRITE | FD_CONNECT)) {
- uv_fatal_error(WSAGetLastError(), "WSAEventSelect");
- }
-
- /* add handle to list */
- uv_add_ares_handle(uv_handle_ares);
- uv_refs_++;
-
- /*
- * we have a single polling timer for all ares sockets.
- * This is preferred to using ares_timeout. See ares_timeout.c warning.
- * if timer is not running start it, and keep socket count
- */
- if (uv_ares_data_ptr->activesockets == 0) {
- uv_timer_init(&uv_ares_data_ptr->pollingtimer);
- uv_timer_start(&uv_ares_data_ptr->pollingtimer, uv_ares_poll, 1000L, 1000L);
- }
- uv_ares_data_ptr->activesockets++;
-
- /* specify thread pool function to call when event is signaled */
- if (RegisterWaitForSingleObject(&uv_handle_ares->h_wait,
- uv_handle_ares->h_event,
- uv_ares_socksignal_tp,
- (void*)uv_handle_ares,
- INFINITE,
- WT_EXECUTEINWAITTHREAD) == 0) {
- uv_fatal_error(GetLastError(), "RegisterWaitForSingleObject");
- }
- } else {
- /* found existing handle. */
- assert(uv_handle_ares->type == UV_ARES_TASK);
- assert(uv_handle_ares->data != NULL);
- assert(uv_handle_ares->h_event != WSA_INVALID_EVENT);
- }
- }
-}
-
-/* called via uv_poll when ares completion port signaled */
-void uv_ares_process(uv_ares_action_t* handle, uv_req_t* req) {
- uv_ares_channel_t* uv_ares_data_ptr = (uv_ares_channel_t*)handle->data;
-
- ares_process_fd(uv_ares_data_ptr->channel,
- handle->read ? handle->sock : INVALID_SOCKET,
- handle->write ? handle->sock : INVALID_SOCKET);
-
- /* release handle for select here */
- free(handle);
-}
-
-/* called via uv_poll when ares is finished with socket */
-void uv_ares_task_cleanup(uv_ares_task_t* handle, uv_req_t* req) {
- /* check for event complete without waiting */
- unsigned int signaled = WaitForSingleObject(handle->h_close_event, 0);
-
- if (signaled != WAIT_TIMEOUT) {
- uv_ares_channel_t* uv_ares_data_ptr = (uv_ares_channel_t*)handle->data;
-
- uv_refs_--;
-
- /* close event handle and free uv handle memory */
- CloseHandle(handle->h_close_event);
- free(handle);
-
- /* decrement active count. if it becomes 0 stop polling */
- if (uv_ares_data_ptr->activesockets > 0) {
- uv_ares_data_ptr->activesockets--;
- if (uv_ares_data_ptr->activesockets == 0) {
- uv_close((uv_handle_t*)&uv_ares_data_ptr->pollingtimer, NULL);
- }
- }
- } else {
- /* stil busy - repost and try again */
- if (!PostQueuedCompletionStatus(uv_iocp_,
- 0,
- 0,
- &req->overlapped)) {
- uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
- }
- }
-}
-
-/* periodically call ares to check for timeouts */
-void uv_ares_poll(uv_timer_t* handle, int status) {
- if (uv_ares_data.channel != NULL && uv_ares_data.activesockets > 0) {
- ares_process_fd(uv_ares_data.channel, ARES_SOCKET_BAD, ARES_SOCKET_BAD);
- }
-}
-
-
-/* set ares SOCK_STATE callback to our handler */
-int uv_ares_init_options(ares_channel *channelptr,
- struct ares_options *options,
- int optmask) {
- int rc;
-
- /* only allow single init at a time */
- if (uv_ares_data.channel != NULL) {
- return UV_EALREADY;
- }
-
- /* set our callback as an option */
- options->sock_state_cb = uv_ares_sockstate_cb;
- options->sock_state_cb_data = &uv_ares_data;
- optmask |= ARES_OPT_SOCK_STATE_CB;
-
- /* We do the call to ares_init_option for caller. */
- rc = ares_init_options(channelptr, options, optmask);
-
- /* if success, save channel */
- if (rc == ARES_SUCCESS) {
- uv_ares_data.channel = *channelptr;
- }
-
- return rc;
-}
-
-
-/* release memory */
-void uv_ares_destroy(ares_channel channel) {
- /* only allow destroy if did init */
- if (uv_ares_data.channel != NULL) {
- ares_destroy(channel);
- uv_ares_data.channel = NULL;
- }
-}
-
-
-/*
- * getaddrinfo error code mapping
- * Falls back to uv_translate_sys_error if no match
- */
-
-static uv_err_code uv_translate_eai_error(int eai_errno) {
- switch (eai_errno) {
- case ERROR_SUCCESS: return UV_OK;
- case EAI_BADFLAGS: return UV_EBADF;
- case EAI_FAIL: return UV_EFAULT;
- case EAI_FAMILY: return UV_EAIFAMNOSUPPORT;
- case EAI_MEMORY: return UV_ENOMEM;
- case EAI_NONAME: return UV_EAINONAME;
- case EAI_AGAIN: return UV_EAGAIN;
- case EAI_SERVICE: return UV_EAISERVICE;
- case EAI_SOCKTYPE: return UV_EAISOCKTYPE;
- default: return uv_translate_sys_error(eai_errno);
- }
-}
-
-
-/* getaddrinfo worker thread implementation */
-static DWORD WINAPI getaddrinfo_thread_proc(void* parameter) {
- uv_getaddrinfo_t* handle = (uv_getaddrinfo_t*)parameter;
- int ret;
-
- assert(handle != NULL);
-
- if (handle != NULL) {
- /* call OS function on this thread */
- ret = GetAddrInfoW(handle->node, handle->service, handle->hints, &handle->res);
- handle->retcode = ret;
-
- /* post getaddrinfo completed */
- if (!PostQueuedCompletionStatus(uv_iocp_,
- 0,
- 0,
- &handle->getadddrinfo_req.overlapped)) {
- uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");
- }
- }
-
- return 0;
-}
-
-
-/*
- * Called from uv_run when complete. Call user specified callback
- * then free returned addrinfo
- * Returned addrinfo strings are converted from UTF-16 to UTF-8.
- *
- * To minimize allocation we calculate total size required,
- * and copy all structs and referenced strings into the one block.
- * Each size calculation is adjusted to avoid unaligned pointers.
- */
-static void uv_getaddrinfo_done(uv_getaddrinfo_t* handle, uv_req_t* req) {
- int addrinfo_len = 0;
- int name_len = 0;
- size_t addrinfo_struct_len = ALIGNED_SIZE(sizeof(struct addrinfo));
- struct addrinfoW* addrinfow_ptr;
- struct addrinfo* addrinfo_ptr;
- char* alloc_ptr = NULL;
- char* cur_ptr = NULL;
- uv_err_code uv_ret;
-
- /* release input parameter memory */
- if (handle->alloc != NULL) {
- free(handle->alloc);
- handle->alloc = NULL;
- }
-
- uv_ret = uv_translate_eai_error(handle->retcode);
- if (handle->retcode == 0) {
- /* convert addrinfoW to addrinfo */
- /* first calculate required length */
- addrinfow_ptr = handle->res;
- while (addrinfow_ptr != NULL) {
- addrinfo_len += addrinfo_struct_len + ALIGNED_SIZE(addrinfow_ptr->ai_addrlen);
- if (addrinfow_ptr->ai_canonname != NULL) {
- name_len = uv_utf16_to_utf8(addrinfow_ptr->ai_canonname, -1, NULL, 0);
- if (name_len == 0) {
- uv_ret = uv_translate_sys_error(GetLastError());
- goto complete;
- }
- addrinfo_len += ALIGNED_SIZE(name_len);
- }
- addrinfow_ptr = addrinfow_ptr->ai_next;
- }
-
- /* allocate memory for addrinfo results */
- alloc_ptr = (char*)malloc(addrinfo_len);
-
- /* do conversions */
- if (alloc_ptr != NULL) {
- cur_ptr = alloc_ptr;
- addrinfow_ptr = handle->res;
-
- while (addrinfow_ptr != NULL) {
- /* copy addrinfo struct data */
- assert(cur_ptr + addrinfo_struct_len <= alloc_ptr + addrinfo_len);
- addrinfo_ptr = (struct addrinfo*)cur_ptr;
- addrinfo_ptr->ai_family = addrinfow_ptr->ai_family;
- addrinfo_ptr->ai_socktype = addrinfow_ptr->ai_socktype;
- addrinfo_ptr->ai_protocol = addrinfow_ptr->ai_protocol;
- addrinfo_ptr->ai_flags = addrinfow_ptr->ai_flags;
- addrinfo_ptr->ai_addrlen = addrinfow_ptr->ai_addrlen;
- addrinfo_ptr->ai_canonname = NULL;
- addrinfo_ptr->ai_addr = NULL;
- addrinfo_ptr->ai_next = NULL;
-
- cur_ptr += addrinfo_struct_len;
-
- /* copy sockaddr */
- if (addrinfo_ptr->ai_addrlen > 0) {
- assert(cur_ptr + addrinfo_ptr->ai_addrlen <= alloc_ptr + addrinfo_len);
- memcpy(cur_ptr, addrinfow_ptr->ai_addr, addrinfo_ptr->ai_addrlen);
- addrinfo_ptr->ai_addr = (struct sockaddr*)cur_ptr;
- cur_ptr += ALIGNED_SIZE(addrinfo_ptr->ai_addrlen);
- }
-
- /* convert canonical name to UTF-8 */
- if (addrinfow_ptr->ai_canonname != NULL) {
- name_len = uv_utf16_to_utf8(addrinfow_ptr->ai_canonname, -1, NULL, 0);
- assert(name_len > 0);
- assert(cur_ptr + name_len <= alloc_ptr + addrinfo_len);
- name_len = uv_utf16_to_utf8(addrinfow_ptr->ai_canonname, -1, cur_ptr, name_len);
- assert(name_len > 0);
- addrinfo_ptr->ai_canonname = cur_ptr;
- cur_ptr += ALIGNED_SIZE(name_len);
- }
- assert(cur_ptr <= alloc_ptr + addrinfo_len);
-
- /* set next ptr */
- addrinfow_ptr = addrinfow_ptr->ai_next;
- if (addrinfow_ptr != NULL) {
- addrinfo_ptr->ai_next = (struct addrinfo*)cur_ptr;
- }
- }
- } else {
- uv_ret = UV_ENOMEM;
- }
-
- }
-
- /* return memory to system */
- if (handle->res != NULL) {
- FreeAddrInfoW(handle->res);
- handle->res = NULL;
- }
-
-complete:
- /* finally do callback with converted result */
- handle->getaddrinfo_cb(handle, uv_ret, (struct addrinfo*)alloc_ptr);
-
- /* release copied result memory */
- if (alloc_ptr != NULL) {
- free(alloc_ptr);
- }
-
- uv_refs_--;
-}
-
-
-/*
- * Entry point for getaddrinfo
- * we convert the UTF-8 strings to UNICODE
- * and save the UNICODE string pointers in the handle
- * We also copy hints so that caller does not need to keep memory until the callback.
- * return UV_OK if a callback will be made
- * return error code if validation fails
- *
- * To minimize allocation we calculate total size required,
- * and copy all structs and referenced strings into the one block.
- * Each size calculation is adjusted to avoid unaligned pointers.
- */
-int uv_getaddrinfo(uv_getaddrinfo_t* handle,
- uv_getaddrinfo_cb getaddrinfo_cb,
- const char* node,
- const char* service,
- const struct addrinfo* hints) {
- int nodesize = 0;
- int servicesize = 0;
- int hintssize = 0;
- char* alloc_ptr = NULL;
-
- if (handle == NULL || getaddrinfo_cb == NULL ||
- (node == NULL && service == NULL)) {
- uv_set_sys_error(WSAEINVAL);
- goto error;
- }
-
- handle->getaddrinfo_cb = getaddrinfo_cb;
- handle->res = NULL;
- handle->type = UV_GETADDRINFO;
-
- /* calculate required memory size for all input values */
- if (node != NULL) {
- nodesize = ALIGNED_SIZE(uv_utf8_to_utf16(node, NULL, 0) * sizeof(wchar_t));
- if (nodesize == 0) {
- uv_set_sys_error(GetLastError());
- goto error;
- }
- }
-
- if (service != NULL) {
- servicesize = ALIGNED_SIZE(uv_utf8_to_utf16(service, NULL, 0) * sizeof(wchar_t));
- if (servicesize == 0) {
- uv_set_sys_error(GetLastError());
- goto error;
- }
- }
- if (hints != NULL) {
- hintssize = ALIGNED_SIZE(sizeof(struct addrinfoW));
- }
-
- /* allocate memory for inputs, and partition it as needed */
- alloc_ptr = (char*)malloc(nodesize + servicesize + hintssize);
- if (!alloc_ptr) {
- uv_set_sys_error(WSAENOBUFS);
- goto error;
- }
-
- /* save alloc_ptr now so we can free if error */
- handle->alloc = (void*)alloc_ptr;
-
- /* convert node string to UTF16 into allocated memory and save pointer in handle */
- if (node != NULL) {
- handle->node = (wchar_t*)alloc_ptr;
- if (uv_utf8_to_utf16(node, (wchar_t*)alloc_ptr, nodesize / sizeof(wchar_t)) == 0) {
- uv_set_sys_error(GetLastError());
- goto error;
- }
- alloc_ptr += nodesize;
- } else {
- handle->node = NULL;
- }
-
- /* convert service string to UTF16 into allocated memory and save pointer in handle */
- if (service != NULL) {
- handle->service = (wchar_t*)alloc_ptr;
- if (uv_utf8_to_utf16(service, (wchar_t*)alloc_ptr, servicesize / sizeof(wchar_t)) == 0) {
- uv_set_sys_error(GetLastError());
- goto error;
- }
- alloc_ptr += servicesize;
- } else {
- handle->service = NULL;
- }
-
- /* copy hints to allocated memory and save pointer in handle */
- if (hints != NULL) {
- handle->hints = (struct addrinfoW*)alloc_ptr;
- handle->hints->ai_family = hints->ai_family;
- handle->hints->ai_socktype = hints->ai_socktype;
- handle->hints->ai_protocol = hints->ai_protocol;
- handle->hints->ai_flags = hints->ai_flags;
- handle->hints->ai_addrlen = 0;
- handle->hints->ai_canonname = NULL;
- handle->hints->ai_addr = NULL;
- handle->hints->ai_next = NULL;
- } else {
- handle->hints = NULL;
- }
-
- /* init request for Post handling */
- uv_req_init(&handle->getadddrinfo_req, (uv_handle_t*)handle, NULL);
- handle->getadddrinfo_req.type = UV_WAKEUP;
-
- /* Ask thread to run. Treat this as a long operation */
- if (QueueUserWorkItem(&getaddrinfo_thread_proc, handle, WT_EXECUTELONGFUNCTION) == 0) {
- uv_set_sys_error(GetLastError());
- goto error;
- }
-
- uv_refs_++;
-
- return 0;
-
-error:
- if (handle != NULL && handle->alloc != NULL) {
- free(handle->alloc);
- }
- return -1;
-}
-
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#ifndef _WIN32_WINNT
-# define _WIN32_WINNT 0x0501
-#endif
-
-#include <stdint.h>
-#include <winsock2.h>
-#include <mswsock.h>
-#include <ws2tcpip.h>
-#include <windows.h>
-
-#include "tree.h"
-
-/**
- * It should be possible to cast uv_buf_t[] to WSABUF[]
- * see http://msdn.microsoft.com/en-us/library/ms741542(v=vs.85).aspx
- */
-typedef struct uv_buf_t {
- ULONG len;
- char* base;
-} uv_buf_t;
-
-#define UV_REQ_PRIVATE_FIELDS \
- union { \
- /* Used by I/O operations */ \
- struct { \
- OVERLAPPED overlapped; \
- size_t queued_bytes; \
- }; \
- }; \
- int flags; \
- uv_err_t error; \
- struct uv_req_s* next_req;
-
-#define UV_STREAM_PRIVATE_FIELDS \
- uv_alloc_cb alloc_cb; \
- uv_read_cb read_cb; \
- struct uv_req_s read_req; \
-
-#define uv_tcp_connection_fields \
- unsigned int write_reqs_pending; \
- uv_req_t* shutdown_req;
-
-#define uv_tcp_server_fields \
- uv_connection_cb connection_cb; \
- SOCKET accept_socket; \
- struct uv_req_s accept_req; \
- char accept_buffer[sizeof(struct sockaddr_storage) * 2 + 32];
-
-#define UV_TCP_PRIVATE_FIELDS \
- unsigned int reqs_pending; \
- union { \
- SOCKET socket; \
- HANDLE handle; \
- }; \
- union { \
- struct { uv_tcp_connection_fields }; \
- struct { uv_tcp_server_fields }; \
- };
-
-#define UV_TIMER_PRIVATE_FIELDS \
- RB_ENTRY(uv_timer_s) tree_entry; \
- int64_t due; \
- int64_t repeat; \
- uv_timer_cb timer_cb;
-
-#define UV_ASYNC_PRIVATE_FIELDS \
- struct uv_req_s async_req; \
- /* char to avoid alignment issues */ \
- char volatile async_sent;
-
-#define UV_PREPARE_PRIVATE_FIELDS \
- uv_prepare_t* prepare_prev; \
- uv_prepare_t* prepare_next; \
- uv_prepare_cb prepare_cb;
-
-#define UV_CHECK_PRIVATE_FIELDS \
- uv_check_t* check_prev; \
- uv_check_t* check_next; \
- uv_check_cb check_cb;
-
-#define UV_IDLE_PRIVATE_FIELDS \
- uv_idle_t* idle_prev; \
- uv_idle_t* idle_next; \
- uv_idle_cb idle_cb;
-
-#define UV_HANDLE_PRIVATE_FIELDS \
- uv_handle_t* endgame_next; \
- unsigned int flags; \
- uv_err_t error;
-
-#define UV_ARES_TASK_PRIVATE_FIELDS \
- struct uv_req_s ares_req; \
- SOCKET sock; \
- HANDLE h_wait; \
- WSAEVENT h_event; \
- HANDLE h_close_event;
-
-#define UV_GETADDRINFO_PRIVATE_FIELDS \
- struct uv_req_s getadddrinfo_req; \
- uv_getaddrinfo_cb getaddrinfo_cb; \
- void* alloc; \
- wchar_t* node; \
- wchar_t* service; \
- struct addrinfoW* hints; \
- struct addrinfoW* res; \
- int retcode;
-
-int uv_utf16_to_utf8(wchar_t* utf16Buffer, size_t utf16Size, char* utf8Buffer, size_t utf8Size);
-int uv_utf8_to_utf16(const char* utf8Buffer, wchar_t* utf16Buffer, size_t utf16Size);
+++ /dev/null
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#ifndef UV_H
-#define UV_H
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define UV_VERSION_MAJOR 0
-#define UV_VERSION_MINOR 1
-
-#define CARES_STATICLIB 1
-
-#include <stdint.h> /* int64_t */
-#include <sys/types.h> /* size_t */
-
-#include "c-ares/ares.h"
-
-#ifndef _SSIZE_T_
-typedef intptr_t ssize_t;
-#endif
-
-typedef struct uv_err_s uv_err_t;
-typedef struct uv_handle_s uv_handle_t;
-typedef struct uv_stream_s uv_stream_t;
-typedef struct uv_tcp_s uv_tcp_t;
-typedef struct uv_timer_s uv_timer_t;
-typedef struct uv_prepare_s uv_prepare_t;
-typedef struct uv_check_s uv_check_t;
-typedef struct uv_idle_s uv_idle_t;
-typedef struct uv_req_s uv_req_t;
-typedef struct uv_async_s uv_async_t;
-typedef struct uv_getaddrinfo_s uv_getaddrinfo_t;
-
-
-#if defined(__unix__) || defined(__POSIX__) || defined(__APPLE__)
-# include "uv-unix.h"
-#else
-# include "uv-win.h"
-#endif
-
-
-/* The status parameter is 0 if the request completed successfully,
- * and should be -1 if the request was cancelled or failed.
- * For uv_close_cb, -1 means that the handle was closed due to an error.
- * Error details can be obtained by calling uv_last_error().
- *
- * In the case of uv_read_cb the uv_buf_t returned should be freed by the
- * user.
- */
-typedef uv_buf_t (*uv_alloc_cb)(uv_stream_t* tcp, size_t suggested_size);
-typedef void (*uv_read_cb)(uv_stream_t* tcp, ssize_t nread, uv_buf_t buf);
-typedef void (*uv_write_cb)(uv_req_t* req, int status);
-typedef void (*uv_connect_cb)(uv_req_t* req, int status);
-typedef void (*uv_shutdown_cb)(uv_req_t* req, int status);
-typedef void (*uv_connection_cb)(uv_handle_t* server, int status);
-typedef void (*uv_close_cb)(uv_handle_t* handle);
-typedef void (*uv_timer_cb)(uv_timer_t* handle, int status);
-/* TODO: do these really need a status argument? */
-typedef void (*uv_async_cb)(uv_async_t* handle, int status);
-typedef void (*uv_prepare_cb)(uv_prepare_t* handle, int status);
-typedef void (*uv_check_cb)(uv_check_t* handle, int status);
-typedef void (*uv_idle_cb)(uv_idle_t* handle, int status);
-typedef void (*uv_getaddrinfo_cb)(uv_getaddrinfo_t* handle, int status, struct addrinfo* res);
-
-
-/* Expand this list if necessary. */
-typedef enum {
- UV_UNKNOWN = -1,
- UV_OK = 0,
- UV_EOF,
- UV_EACCESS,
- UV_EAGAIN,
- UV_EADDRINUSE,
- UV_EADDRNOTAVAIL,
- UV_EAFNOSUPPORT,
- UV_EALREADY,
- UV_EBADF,
- UV_EBUSY,
- UV_ECONNABORTED,
- UV_ECONNREFUSED,
- UV_ECONNRESET,
- UV_EDESTADDRREQ,
- UV_EFAULT,
- UV_EHOSTUNREACH,
- UV_EINTR,
- UV_EINVAL,
- UV_EISCONN,
- UV_EMFILE,
- UV_ENETDOWN,
- UV_ENETUNREACH,
- UV_ENFILE,
- UV_ENOBUFS,
- UV_ENOMEM,
- UV_ENONET,
- UV_ENOPROTOOPT,
- UV_ENOTCONN,
- UV_ENOTSOCK,
- UV_ENOTSUP,
- UV_EPROTO,
- UV_EPROTONOSUPPORT,
- UV_EPROTOTYPE,
- UV_ETIMEDOUT,
- UV_ECHARSET,
- UV_EAIFAMNOSUPPORT,
- UV_EAINONAME,
- UV_EAISERVICE,
- UV_EAISOCKTYPE
-} uv_err_code;
-
-typedef enum {
- UV_UNKNOWN_HANDLE = 0,
- UV_TCP,
- UV_NAMED_PIPE,
- UV_TTY,
- UV_FILE,
- UV_TIMER,
- UV_PREPARE,
- UV_CHECK,
- UV_IDLE,
- UV_ASYNC,
- UV_ARES,
- UV_ARES_TASK,
- UV_GETADDRINFO
-} uv_handle_type;
-
-typedef enum {
- UV_UNKNOWN_REQ = 0,
- UV_CONNECT,
- UV_ACCEPT,
- UV_READ,
- UV_WRITE,
- UV_SHUTDOWN,
- UV_WAKEUP
-} uv_req_type;
-
-
-struct uv_err_s {
- /* read-only */
- uv_err_code code;
- /* private */
- int sys_errno_;
-};
-
-
-struct uv_req_s {
- /* read-only */
- uv_req_type type;
- /* public */
- uv_handle_t* handle;
- void* cb;
- void* data;
- /* private */
- UV_REQ_PRIVATE_FIELDS
-};
-
-/*
- * Initialize a request for use with uv_write, uv_shutdown, or uv_connect.
- */
-void uv_req_init(uv_req_t* req, uv_handle_t* handle, void* cb);
-
-int uv_shutdown(uv_req_t* req);
-
-
-#define UV_HANDLE_FIELDS \
- /* read-only */ \
- uv_handle_type type; \
- /* public */ \
- uv_close_cb close_cb; \
- void* data; \
- /* private */ \
- UV_HANDLE_PRIVATE_FIELDS \
-
-/* The abstract base class of all handles. */
-struct uv_handle_s {
- UV_HANDLE_FIELDS
-};
-
-/*
- * Returns 1 if the prepare/check/idle handle has been started, 0 otherwise.
- * For other handle types this always returns 1.
- */
-int uv_is_active(uv_handle_t* handle);
-
-/*
- * Request handle to be closed. close_cb will be called asynchronously after
- * this call. This MUST be called on each handle before memory is released.
- */
-int uv_close(uv_handle_t* handle, uv_close_cb close_cb);
-
-
-#define UV_STREAM_FIELDS \
- /* number of bytes queued for writing */ \
- size_t write_queue_size; \
- /* private */ \
- UV_STREAM_PRIVATE_FIELDS \
-
-/* The abstract base class for all streams. */
-struct uv_stream_s {
- UV_HANDLE_FIELDS
- UV_STREAM_FIELDS
-};
-
-/* This call is used in conjunction with uv_listen() to accept incoming
- * connections. Call uv_accept after receiving a uv_connection_cb to accept
- * the connection. Before calling uv_accept use uv_*_init() must be
- * called on the client. Non-zero return value indicates an error.
- *
- * When the uv_connection_cb is called it is guaranteed that uv_accept will
- * complete successfully the first time. If you attempt to use it more than
- * once, it may fail. It is suggested to only call uv_accept once per
- * uv_connection_cb call.
- */
-int uv_accept(uv_handle_t* server, uv_stream_t* client);
-
-/* Read data from an incoming stream. The callback will be made several
- * several times until there is no more data to read or uv_read_stop is
- * called. When we've reached EOF nread will be set to -1 and the error is
- * set to UV_EOF. When nread == -1 the buf parameter might not point to a
- * valid buffer; in that case buf.len and buf.base are both set to 0.
- * Note that nread might also be 0, which does *not* indicate an error or
- * eof; it happens when libuv requested a buffer through the alloc callback
- * but then decided that it didn't need that buffer.
- */
-int uv_read_start(uv_stream_t*, uv_alloc_cb alloc_cb, uv_read_cb read_cb);
-
-int uv_read_stop(uv_stream_t*);
-
-/* Write data to stream. Buffers are written in order. Example:
- *
- * uv_buf_t a[] = {
- * { .base = "1", .len = 1 },
- * { .base = "2", .len = 1 }
- * };
- *
- * uv_buf_t b[] = {
- * { .base = "3", .len = 1 },
- * { .base = "4", .len = 1 }
- * };
- *
- * // writes "1234"
- * uv_write(req, a, 2);
- * uv_write(req, b, 2);
- *
- */
-int uv_write(uv_req_t* req, uv_buf_t bufs[], int bufcnt);
-
-
-/*
- * A subclass of uv_stream_t representing a TCP stream or TCP server. In the
- * future this will probably be split into two classes - one a stream and
- * the other a server.
- */
-struct uv_tcp_s {
- UV_HANDLE_FIELDS
- UV_STREAM_FIELDS
- UV_TCP_PRIVATE_FIELDS
-};
-
-int uv_tcp_init(uv_tcp_t* handle);
-
-int uv_tcp_bind(uv_tcp_t* handle, struct sockaddr_in);
-int uv_tcp_bind6(uv_tcp_t* handle, struct sockaddr_in6);
-
-int uv_tcp_connect(uv_req_t* req, struct sockaddr_in);
-int uv_tcp_connect6(uv_req_t* req, struct sockaddr_in6);
-
-int uv_tcp_listen(uv_tcp_t* handle, int backlog, uv_connection_cb cb);
-
-
-/*
- * Subclass of uv_handle_t. libev wrapper. Every active prepare handle gets
- * its callback called exactly once per loop iteration, just before the
- * system blocks to wait for completed i/o.
- */
-struct uv_prepare_s {
- UV_HANDLE_FIELDS
- UV_PREPARE_PRIVATE_FIELDS
-};
-
-int uv_prepare_init(uv_prepare_t* prepare);
-
-int uv_prepare_start(uv_prepare_t* prepare, uv_prepare_cb cb);
-
-int uv_prepare_stop(uv_prepare_t* prepare);
-
-
-/*
- * Subclass of uv_handle_t. libev wrapper. Every active check handle gets
- * its callback called exactly once per loop iteration, just after the
- * system returns from blocking.
- */
-struct uv_check_s {
- UV_HANDLE_FIELDS
- UV_CHECK_PRIVATE_FIELDS
-};
-
-int uv_check_init(uv_check_t* check);
-
-int uv_check_start(uv_check_t* check, uv_check_cb cb);
-
-int uv_check_stop(uv_check_t* check);
-
-
-/*
- * Subclass of uv_handle_t. libev wrapper. Every active idle handle gets its
- * callback called repeatedly until it is stopped. This happens after all
- * other types of callbacks are processed. When there are multiple "idle"
- * handles active, their callbacks are called in turn.
- */
-struct uv_idle_s {
- UV_HANDLE_FIELDS
- UV_IDLE_PRIVATE_FIELDS
-};
-
-int uv_idle_init(uv_idle_t* idle);
-
-int uv_idle_start(uv_idle_t* idle, uv_idle_cb cb);
-
-int uv_idle_stop(uv_idle_t* idle);
-
-
-/*
- * Subclass of uv_handle_t. libev wrapper. uv_async_send wakes up the event
- * loop and calls the async handle's callback There is no guarantee that
- * every uv_async_send call leads to exactly one invocation of the callback;
- * The only guarantee is that the callback function is called at least once
- * after the call to async_send. Unlike all other libuv functions,
- * uv_async_send can be called from another thread.
- */
-struct uv_async_s {
- UV_HANDLE_FIELDS
- UV_ASYNC_PRIVATE_FIELDS
-};
-
-int uv_async_init(uv_async_t* async, uv_async_cb async_cb);
-
-int uv_async_send(uv_async_t* async);
-
-
-/*
- * Subclass of uv_handle_t. Wraps libev's ev_timer watcher. Used to get
- * woken up at a specified time in the future.
- */
-struct uv_timer_s {
- UV_HANDLE_FIELDS
- UV_TIMER_PRIVATE_FIELDS
-};
-
-int uv_timer_init(uv_timer_t* timer);
-
-int uv_timer_start(uv_timer_t* timer, uv_timer_cb cb, int64_t timeout, int64_t repeat);
-
-int uv_timer_stop(uv_timer_t* timer);
-
-/*
- * Stop the timer, and if it is repeating restart it using the repeat value
- * as the timeout. If the timer has never been started before it returns -1 and
- * sets the error to UV_EINVAL.
- */
-int uv_timer_again(uv_timer_t* timer);
-
-/*
- * Set the repeat value. Note that if the repeat value is set from a timer
- * callback it does not immediately take effect. If the timer was nonrepeating
- * before, it will have been stopped. If it was repeating, then the old repeat
- * value will have been used to schedule the next timeout.
- */
-void uv_timer_set_repeat(uv_timer_t* timer, int64_t repeat);
-
-int64_t uv_timer_get_repeat(uv_timer_t* timer);
-
-
-/* c-ares integration initialize and terminate */
-int uv_ares_init_options(ares_channel *channelptr,
- struct ares_options *options,
- int optmask);
-
-void uv_ares_destroy(ares_channel channel);
-
-
-/*
- * Subclass of uv_handle_t. Used for integration of getaddrinfo.
- */
-struct uv_getaddrinfo_s {
- UV_HANDLE_FIELDS
- UV_GETADDRINFO_PRIVATE_FIELDS
-};
-
-
-/* uv_getaddrinfo
- * return code of UV_OK means that request is accepted,
- * and callback will be called with result.
- * Other return codes mean that there will not be a callback.
- * Input arguments may be released after return from this call.
- * Callback must not call freeaddrinfo
- */
- int uv_getaddrinfo(uv_getaddrinfo_t* handle,
- uv_getaddrinfo_cb getaddrinfo_cb,
- const char* node,
- const char* service,
- const struct addrinfo* hints);
-
-
-/*
- * Most functions return boolean: 0 for success and -1 for failure.
- * On error the user should then call uv_last_error() to determine
- * the error code.
- */
-uv_err_t uv_last_error();
-char* uv_strerror(uv_err_t err);
-const char* uv_err_name(uv_err_t err);
-
-void uv_init();
-int uv_run();
-
-/*
- * Manually modify the event loop's reference count. Useful if the user wants
- * to have a handle or timeout that doesn't keep the loop alive.
- */
-void uv_ref();
-void uv_unref();
-
-void uv_update_time();
-int64_t uv_now();
-
-
-/* Utility */
-struct sockaddr_in uv_ip4_addr(const char* ip, int port);
-struct sockaddr_in6 uv_ip6_addr(const char* ip, int port);
-
-/* Gets the executable path */
-int uv_exepath(char* buffer, size_t* size);
-
-/*
- * Returns the current high-resolution real time. This is expressed in
- * nanoseconds. It is relative to an arbitrary time in the past. It is not
- * related to the time of day and therefore not subject to clock drift. The
- * primary use is for measuring performance between intervals.
- *
- * Note not every platform can support nanosecond resolution; however, this
- * value will always be in nanoseconds.
- */
-extern uint64_t uv_hrtime(void);
-
-
-/* the presence of this union forces similar struct layout */
-union uv_any_handle {
- uv_tcp_t tcp;
- uv_prepare_t prepare;
- uv_check_t check;
- uv_idle_t idle;
- uv_async_t async;
- uv_timer_t timer;
- uv_getaddrinfo_t getaddrinfo;
-};
-
-/* Diagnostic counters */
-typedef struct {
- uint64_t req_init;
- uint64_t handle_init;
- uint64_t tcp_init;
- uint64_t prepare_init;
- uint64_t check_init;
- uint64_t idle_init;
- uint64_t async_init;
- uint64_t timer_init;
-} uv_counters_t;
-
-uv_counters_t* uv_counters();
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* UV_H */
def build_uv(bld):
uv = bld.new_task_gen(
name = 'uv',
- source = 'deps/uv/uv.h',
+ source = 'deps/uv/include/uv.h',
target = 'deps/uv/uv.a',
before = "cxx",
rule = uv_cmd(bld, 'default')
t = join(bld.srcnode.abspath(bld.env_of_name("debug")), uv_debug.target)
bld.env_of_name('debug').append_value("LINKFLAGS_UV", t)
- bld.install_files('${PREFIX}/include/node/', 'deps/uv/*.h')
- bld.install_files('${PREFIX}/include/node/ev', 'deps/uv/ev/*.h')
+ bld.install_files('${PREFIX}/include/node/', 'deps/uv/include/*.h')
+
+ bld.install_files('${PREFIX}/include/node/ev', 'deps/uv/src/ev/*.h')
+ bld.install_files('${PREFIX}/include/node/c-ares', """
+ deps/uv/include/ares.h
+ deps/uv/include/ares_version.h
+ """)
def build(bld):
node.includes = """
src/
deps/http_parser
- deps/uv
- deps/uv/ev
- deps/uv/eio
+ deps/uv/include
+ deps/uv/src/ev
"""
if not bld.env["USE_SHARED_V8"]: node.includes += ' deps/v8/include '
- if not bld.env["USE_SHARED_CARES"]:
- node.includes += ' deps/uv/c-ares '
-
if sys.platform.startswith('cygwin'):
bld.env.append_value('LINKFLAGS', '-Wl,--export-all-symbols')
bld.env.append_value('LINKFLAGS', '-Wl,--out-implib,default/libnode.dll.a')
src/node_events.h
src/node_version.h
""")
- bld.install_files('${PREFIX}/include/node/c-ares', """
- deps/uv/c-ares/ares.h
- deps/uv/c-ares/ares_version.h
- """)
# Only install the man page if it exists.
# Do 'make doc install' to build and install it.
projects / platform / upstream / nodejs.git / commitdiff