Daniel Martin [Thu, 25 Jul 2013 08:56:30 +0000 (10:56 +0200)]
Use m4 directory
- Follow the suggestion by libtoolize:
"Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.ac and
rerunning libtoolize, to keep the correct libtool macros in-tree.
Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am."
and add the macro and define.
- Create the m4 directory and move acinclude.m4 as xcb.m4 there.
- Ignore the m4 files libtoolize copies into the m4 directory
(m4/l*.m4).
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Tested-By: Ran Benita <ran234@gmail.com>
Daniel Martin [Wed, 24 Jul 2013 12:13:41 +0000 (14:13 +0200)]
Use build-aux as autom4te cache directory
Remove the generated directory ./autom4te.cache by reusing ./build-aux
as cache directory.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Tested-By: Ran Benita <ran234@gmail.com>
Daniel Martin [Wed, 24 Jul 2013 12:08:38 +0000 (14:08 +0200)]
Set AC_CONFIG_AUX_DIR to build-aux
Do not clutter the project directory with generated/copied auxiliary
files, save them in ./build-aux.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Tested-By: Ran Benita <ran234@gmail.com>
Daniel Martin [Wed, 24 Jul 2013 17:22:44 +0000 (19:22 +0200)]
Remove second AC_PREREQ, require version 2.60
Remove a second AC_PREREQ and bump the required autoconf version to
2.60.
Version 2.59c was a testing release, published in April 2006. Version
2.60 was the stable release afterwards, released in June 2006.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Tested-By: Ran Benita <ran234@gmail.com>
Daniel Martin [Wed, 24 Jul 2013 10:51:04 +0000 (12:51 +0200)]
Initialize automake earlier (bugfix for #66413)
This fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66413
Bug 66413 - libxcb 1.9.1: Fails to build on Arch Linux: \
/home/<user>/install-sh: No such file or directory
Without that patch the search path for `install-sh` will become $HOME
and the `install` target will fail, when DESTDIR doesn't exist in
advance. (occured with automake 1.14 and autoconf 2.69)
Initial patch by: Alain Kalker <a.c.kalker@gmail.com>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Tested-By: Ran Benita <ran234@gmail.com>
Daniel Martin [Mon, 31 Dec 2012 10:57:49 +0000 (11:57 +0100)]
Make xsltproc optional
Fix Bug 23863 - xcb still checks for xsltproc:
https://bugs.freedesktop.org/show_bug.cgi?id=23863
xsltproc is used to generate the optional html page for `check` results,
only. So, it's not a hard build dependency.
Additionally, use yes/no instead of true/false in the HTML_CHECK_RESULT
variable for consistent output after a configure run.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Daniel Martin [Fri, 28 Dec 2012 22:25:16 +0000 (23:25 +0100)]
c_client.py: Do not create pointers in unions
Do not create pointers in unions for fields of variadic length.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Ran Benita <ran234@gmail.com>
Daniel Martin [Wed, 9 Jan 2013 11:52:15 +0000 (12:52 +0100)]
c_client.py: Always initialize xcb_align_to
to get rid of:
warning: 'xcb_align_to' may be used uninitialized in this function
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Peter Harris <pharris@opentext.com>
Alan Coopersmith [Sun, 4 Aug 2013 03:25:23 +0000 (20:25 -0700)]
Define _xcb_map_new with explicit void arg list instead of empty one
Fixes Solaris Studio compiler warning:
"xcb_list.c", line 50: warning: old style function definition
and gcc warning:
xcb_list.c: In function '_xcb_map_new':
xcb_list.c:50:11: warning: old-style function definition [-Wold-style-definition]
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Alan Coopersmith [Sun, 4 Aug 2013 03:22:25 +0000 (20:22 -0700)]
Enable warnings for pre-C89 style definitions for gcc & Solaris Studio
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Michael Stapelberg [Mon, 5 Aug 2013 20:14:18 +0000 (22:14 +0200)]
Build xcb-xkb by default
There have not been any big issues with xcb-xkb recently.
Also, Wayland is using xcb-xkb actively, making distributions compile
libxcb with xkb support anyway, so let’s reflect reality :).
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Daniel Martin [Sat, 8 Jun 2013 09:20:39 +0000 (11:20 +0200)]
c_client.py: Inject full_sequence into GE events
The generic event structure xcb_ge_event_t has the full_sequence field
at the 32byte boundary. That's why we've to inject this field into GE
events while generating the structure for them. Otherwise we would read
garbage (the internal full_sequence) when accessing normal event fields
there.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Peter Harris <pharris@opentext.com>
Alan Coopersmith [Tue, 9 Jul 2013 00:54:35 +0000 (17:54 -0700)]
Fix "indention" typos in xcb-examples.3 man page
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Marc Deslauriers [Wed, 5 Jun 2013 20:38:00 +0000 (16:38 -0400)]
Update Makefile.am for newer automake
Debian Bug #710344
Reviewed-by: Daniel Martin <consume.noise@gmail.com>
Christian König [Wed, 15 May 2013 09:21:36 +0000 (11:21 +0200)]
fix deadlock with xcb_take_socket/return_socket v3
To prevent different threads from stealing the socket from each other the
caller of "xcb_take_socket" must hold a lock that is also acquired in
"return_socket". Unfortunately xcb tries to prevent calling return_socket
from multiple threads and this can lead to a deadlock situation.
A simple example:
- X11 has taken the socket
- Thread A has locked the display.
- Thread B does xcb_no_operation() and thus ends up in libX11's return_socket(),
waiting for the display lock.
- Thread A calls e.g. xcb_no_operation(), too, ends up in return_socket() and
because socket_moving == 1, ends up waiting for thread B
=> Deadlock
This patch allows calling return_socket from different threads at the same time
an so resolves the deadlock situation.
Partially fixes: https://bugs.freedesktop.org/show_bug.cgi?id=20708
v2: fixes additional pthread_cond_wait dependencies,
rework comments and patch description
v3: separate pthread_cond_wait dependencies and unrelated whitespace
change into their own patch, use unsigned for socket_seq
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Uli Schlachter <psychon@znc.in>
Alan Coopersmith [Thu, 2 May 2013 00:59:31 +0000 (17:59 -0700)]
integer overflow in read_packet() [CVE-2013-2064]
Ensure that when calculating the size of the incoming response from the
Xserver, we don't overflow the integer used in the calculations when we
multiply the int32_t length by 4 and add it to the default response size.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Daniel Martin [Mon, 13 May 2013 21:33:04 +0000 (23:33 +0200)]
c_client.py: Handle multiple expr. in a bitcase
Adopt a change from xcbgen. With that modification the expression in a
bitcase became a list of expressions to support multiple <enumref> in a
<bitcase>.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Signed-off-by: Peter Harris <pharris@opentext.com>
Christian König [Wed, 15 May 2013 09:21:35 +0000 (11:21 +0200)]
whitespace fix in xcb_take_socket
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Colin Walters [Wed, 4 Jan 2012 22:37:06 +0000 (17:37 -0500)]
autogen.sh: Implement GNOME Build API
http://people.gnome.org/~walters/docs/build-api.txt
Signed-off-by: Adam Jackson <ajax@redhat.com>
Chí-Thanh Christopher Nguyễn [Wed, 10 Oct 2012 23:14:12 +0000 (01:14 +0200)]
c_client.py: Fix python-3 invalid except statement
Replace except statement with a PEP-3110 compliant one. This fixes a regression
introduced by
c3deeaf714630531d693a6a902b8dabf791858b1
https://bugs.freedesktop.org/show_bug.cgi?id=55690
Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Uli Schlachter <psychon@znc.in>
Chí-Thanh Christopher Nguyễn [Wed, 10 Oct 2012 23:14:11 +0000 (01:14 +0200)]
c-client.py: Fix python-3 AttributeError: 'dict' object has no attribute 'iteritems'
This fixes a regression introduced by
ea71d7d7e3f5d8189b80747678e9ca9a417b1d37
https://bugs.freedesktop.org/show_bug.cgi?id=55690
Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Uli Schlachter <psychon@znc.in>
Uli Schlachter [Fri, 5 Oct 2012 12:53:37 +0000 (14:53 +0200)]
Release libxcb 1.9
Signed-off-by: Uli Schlachter <psychon@znc.in>
Uli Schlachter [Fri, 5 Oct 2012 09:23:26 +0000 (11:23 +0200)]
Include static man pages in "make dist"
This was found by distcheck. It tried to install src/man/xcb-examples.3 and
src/man/xcb-requests.3, but those files weren't in the distribution.
Fix this by explicitly telling automake to distribute those files.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Uli Schlachter [Mon, 24 Sep 2012 20:07:51 +0000 (22:07 +0200)]
Fix a multi-thread deadlock
This fixes a deadlock which was seen in-the-wild with wine.
It could happen that two threads tried to read from the socket at the same time
and one of the thread got stuck inside of poll()/select().
The fix works by making sure that the writing thread doesn't steal the reading
thread's reply.
Debugged-by: Erich Hoover <ehoover@mines.edu>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54671
Signed-off-by: Uli Schlachter <psychon@znc.in>
Uli Schlachter [Mon, 24 Sep 2012 20:07:30 +0000 (22:07 +0200)]
Add a .gitignore for src/man/
Signed-off-by: Uli Schlachter <psychon@znc.in>
Peter Harris [Thu, 16 Aug 2012 15:59:14 +0000 (11:59 -0400)]
Allow xcb_send_request with >MAX_IOV iovecs
This allows an application to do a scatter/gather operation on a large
image buffer to avoid the extra memcpy.
Use autoconf to use UIO_MAXIOV where IOV_MAX is not available (and the
POSIX minimum of 16 where neither are available).
Reviewed-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Peter Harris <pharris@opentext.com>
Alan Coopersmith [Sat, 25 Aug 2012 20:53:37 +0000 (13:53 -0700)]
Return connection failure if display string specifies non-existent screen
Matches the behaviour of Xlib - if you set DISPLAY to :0.1 but only have
one screen, closes connection and returns error.
This introduces a new connection error code:
XCB_CONN_CLOSED_INVALID_SCREEN
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Alan Coopersmith [Sat, 25 Aug 2012 06:35:41 +0000 (23:35 -0700)]
Add AC_USE_SYSTEM_EXTENSIONS to allow use of more system functionality
Copied from libX11 configure.ac
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Alan Coopersmith [Sat, 25 Aug 2012 06:32:32 +0000 (23:32 -0700)]
Always include "config.h" at the start of all C source files.
Allows configure to set defines such as _POSIX_SOURCE in config.h
that affect functions exposed by system headers and get consistent
results across all the source files.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Alan Coopersmith [Sat, 25 Aug 2012 19:33:35 +0000 (12:33 -0700)]
Fix "sppported" typo in doxygen comment for XCB_CONN_CLOSED_EXT_NOTSUPPORTED
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Colin Walters [Mon, 13 Aug 2012 19:32:31 +0000 (15:32 -0400)]
c_client: Fix parallel-make issue creating 'man' directory
With make -j, it was possible to hit a race condition in the code to
make the 'man' directory.
Signed-off-by: Julien Danjou <julien@danjou.info>
Jeremy Huddleston [Sun, 22 Apr 2012 05:42:51 +0000 (22:42 -0700)]
xcb_connect: launchd: Don't fall back on tcp if $DISPLAY is a path to a launchd socket
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Julien Danjou [Tue, 27 Mar 2012 10:10:59 +0000 (12:10 +0200)]
Move static man to man
Signed-off-by: Julien Danjou <julien@danjou.info>
Julien Danjou [Tue, 27 Mar 2012 10:10:15 +0000 (12:10 +0200)]
Do not list manpages, use a wildcard
Signed-off-by: Julien Danjou <julien@danjou.info>
Julien Danjou [Tue, 27 Mar 2012 10:06:54 +0000 (12:06 +0200)]
Split manpage list in two (static/built)
Signed-off-by: Julien Danjou <julien@danjou.info>
Julien Danjou [Mon, 26 Mar 2012 16:29:35 +0000 (18:29 +0200)]
Allow undocumented code to be built
Signed-off-by: Julien Danjou <julien@danjou.info>
Michael Stapelberg [Sun, 27 Nov 2011 10:38:26 +0000 (10:38 +0000)]
c_client.py: generate manpages
Signed-off-by: Julien Danjou <julien@danjou.info>
Julien Danjou [Fri, 9 Mar 2012 14:38:56 +0000 (15:38 +0100)]
Release libxcb 1.8.1
Signed-off-by: Julien Danjou <julien@danjou.info>
Uli Schlachter [Thu, 1 Mar 2012 19:26:39 +0000 (20:26 +0100)]
Fix a busy loop on BSD and Mac OS
On FreeBSD MSG_WAITALL on a non-blocking socket fails immediately if less bytes
than were asked for are available. This is different than the behavior on linux
where as many bytes as are available are returned in this case. Other OS
apparently follow the FreeBSD behavior.
_xcb_in_read() is used to fill xcb's read buffer, thus this function will call
recv() with a big length argument (xcb's read buffer is by default 16 KiB
large). That many bytes are highly unlikely to be available in the kernel
buffer.
This means that _xcb_in_read() always failed on FreeBSD. Since the socket was
still signaled as readable by poll(), this bug even resulted in a busy loop.
The same issue is present in read_block(), but here it is slightly different.
read_block() is called when we read the first few bytes of an event or a reply,
so that we already know its length. This means that we should be able to use
MSG_WAITALL here, because we know how many bytes there have to be.
However, that function could busy loop, too, when only the first few bytes of
the packet were sent while the rest is stuck somewhere on the way to us. Thus,
MSG_WAITALL should be removed here, too.
Thanks to Christoph Egger from Debian for noticing the problem, doing all the
necessary debugging and figuring out what the problem was! This patch is 99%
from debian. Thanks for all the work.
This bug was introduced in commit
2dcf8b025be88a25d4333abdc28d425b88238d96.
This commit also reverts commit
9061ee45b8dbe5431c23e3f628089d703ccad0b1.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=45776
Signed-off-by: Uli Schlachter <psychon@znc.in>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Jeremy Huddleston [Thu, 8 Mar 2012 08:50:13 +0000 (00:50 -0800)]
darwin: Use read(2) rather than recv(2)
2dcf8b025be88a25d4333abdc28d425b88238d96 was causing some regressions on
darwin, so go back to using read(2) there until I have time to investigate
further.
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Julien Cristau [Sun, 19 Feb 2012 12:43:54 +0000 (13:43 +0100)]
Fallback to TCP if no protocol is specified and the UNIX connection fails
Signed-off-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Arnaud Fontaine [Wed, 25 Jan 2012 08:18:20 +0000 (17:18 +0900)]
Add xkb_internals and xkb_issues to EXTRA_DIST.
Jon TURNEY [Tue, 17 Jan 2012 20:59:56 +0000 (20:59 +0000)]
Update use of error_connection under WIN32 to _xcb_conn_ret_error()
Unfortunately, commit
31b57676 adding WSACleanup/WSAShutdown on Win32 adds a new use
of error_connection, which was removed in commit
769acff0, applied 5 minutes earlier.
src/xcb_util.c: In function 'xcb_connect_to_display_with_auth_info':
src/xcb_util.c:433:39: error: 'error_connection' undeclared (first use in this function)
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Arvind Umrao <arvind.umrao@oracle.com>
Signed-off-by: Uli Schlachter <psychon@znc.in>
Jon TURNEY [Wed, 18 Jan 2012 14:11:07 +0000 (14:11 +0000)]
Fix build of xcb_auth.c with XDMCP on WIN32
Fix a redefinition problem which shows up when building for _WIN32 and
libXdmcp is installed, so HASXDMAUTH is enabled
It seems this is a special place in xcb as it uses other X11 library headers here
If HASXDMAUTH is defined, include the wrapped windows.h before any header which
includes it unwrapped, to avoid conflicts with types defined in X headers
We need to include config.h and check HASXDMAUTH to avoid an unconditional dependency
on x11proto headers
In file included from install/include/X11/Xdmcp.h:19:0,
from git/xcb/libxcb/src/xcb_auth.c:52:
install/include/X11/Xmd.h:120:14: error: conflicting types for 'INT32'
/usr/i686-pc-mingw32/sys-root/mingw/include/basetsd.h:54:13: note: previous declaration of 'INT32' was here
install/include/X11/Xmd.h:143:15: error: conflicting types for 'BOOL'
/usr/i686-pc-mingw32/sys-root/mingw/include/windef.h:234:17: note: previous declaration of 'BOOL' was here
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Jeremy Huddleston [Wed, 18 Jan 2012 07:55:23 +0000 (23:55 -0800)]
Revert "Fix include order with Xdmcp on WIN32"
This reverts commit
0e9246def562be97cc816f824f702233a826ec56.
This change caused build failures because <X11/Xdmcp.h> was never
included under any circumstance. This is because the check for
HASXDMAUTH was moved before the inclusion of config.h (via xcbint.h)
which defined it.
Found-by: Tinderbox
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Julien Danjou [Thu, 12 Jan 2012 09:25:07 +0000 (10:25 +0100)]
Bump xcb-proto requirement
We are now unable to build xcb-proto before 1.7.
Signed-off-by: Julien Danjou <julien@danjou.info>
Julien Danjou [Wed, 11 Jan 2012 17:27:38 +0000 (18:27 +0100)]
Release libxcb 1.8
Signed-off-by: Julien Danjou <julien@danjou.info>
Ryan Pavlik [Wed, 11 Jan 2012 17:06:50 +0000 (18:06 +0100)]
Use WSAStartup()/WSACleanup() on WIN32
The alternative is to use these in every WIN32 application which uses xcb. Doing
it this way should be safe, as, according to MSDN, "There must be a call to
WSACleanup for each successful call to WSAStartup. Only the final WSACleanup
function call performs the actual cleanup. The preceding calls simply decrement
an internal reference count"
(We should probably also include ws2_32 in Libs.private for libxcb, as anything
which links with libxcb will also need that, but there seems to be some pkg-config
issues to resolve first...)
v2: Check for errors so WSAStartup()/WSACleanup() uses are balanced
v3: Use same indentation style as surrounding code
Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Julien Danjou <julien@danjou.info>
Ryan Pavlik [Thu, 5 Jan 2012 20:57:53 +0000 (20:57 +0000)]
Fix include order with Xdmcp on WIN32
Fix a redefinition problem due to include order which shows up when
building for _WIN32 and libXdmcp is installed, so HASXDMAUTH is enabled
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Julien Danjou <julien@danjou.info>
Jon TURNEY [Thu, 5 Jan 2012 20:57:52 +0000 (20:57 +0000)]
Fix WIN32 compilation after commit
163c47bdc0d32785d831e4c93fea9ab7e023446b
WIN32 does not have arpa/inet.h, so do not try to include it unless _WIN32 is
not defined
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Julien Danjou <julien@danjou.info>
Arvind Umrao [Fri, 4 Nov 2011 10:12:05 +0000 (15:42 +0530)]
Added more error states and removed global error_connection
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=41443
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=42304
I have added more xcb connection error states at xcb.h header.
Also I have removed global error_connection variable, and added
an interface that returns connection error state.
TBD:
I will segregate errors states in a separate header file and try to
provide more precise error states, in future. Also I will give patch
for libX11, in that patch xcb_connection_t::has_error will be passed
to default io handler of libX11. This value can then be used for
displaying error messages.
Reviewed-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Arvind Umrao <arvind.umrao@oracle.com>
Keith Packard [Thu, 1 Dec 2011 10:28:51 +0000 (10:28 +0000)]
Make xcb_take_socket keep flushing until idle
_xcb_out_flush_to will drop the iolock in pthread_cond_wait allowing
other threads to queue new requests. When this happened,
there would be requests queued for the socket after _xcb_out_flush_to
returned, and xcb_take_socket would throw an assert.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29875
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Julien Danjou <julien@danjou.info>
Uli Schlachter [Thu, 25 Aug 2011 12:18:16 +0000 (14:18 +0200)]
Fix a dead-lock due to xcb_poll_for_reply
Imagine two threads:
Thread#1: for(;;) { xcb_get_input_focus_reply(c, xcb_get_input_focus(c), 0); }
Thread#2: for(;;) { xcb_poll_for_event(c); }
Since xcb_poll_for_event() calls _xcb_in_read() directly without synchronizing
with any other readers, this causes two threads to end up calling recv() at the
same time. We now have a race because any of these two threads could get read
the GetInputFocus reply.
If thread#2 reads this reply, it will be put in the appropriate queue and
thread#1 will still be stuck in recv(), although its reply was already received.
If no other reply or event causes this thread to wake up, the process deadlocks.
To fix this, we have to make sure that there is only ever one thread reading
from the connection. The obvious solution is to check in poll_for_next_event()
if another thread is already reading (in which case c->in.reading != 0) and not
to read from the wire in this case.
This solution is actually correct if we assume that the other thread is blocked
in poll() which means there isn't any data which can be read. Since we already
checked that there is no event in the queue this means that
poll_for_next_event() didn't find any event to return.
There might be a small race here where the other thread already determined that
there is data to read, but it still has to wait for c->iolock. However, this
means that the next poll_for_next_event() will be able to read the event, so
this shouldn't cause any problems.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=40372
Signed-off-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Peter Harris <pharris@opentext.com>
Jamey Sharp [Wed, 24 Aug 2011 15:52:02 +0000 (08:52 -0700)]
Keep ALIGNOF definition out of the public namespace.
Uli's patch is an excellent solution; I just want to keep the new
ALIGNOF macro hidden from XCB's users, as they don't need it to call
XCB.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Markus Duft [Wed, 24 Aug 2011 14:49:06 +0000 (10:49 -0400)]
Support pre-IPv6 systems (without getaddrinfo)
Some of these systems (eg. Interix on XP) are still in use.
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Peter Harris <pharris@opentext.com>
Uli Schlachter [Wed, 24 Aug 2011 10:47:16 +0000 (12:47 +0200)]
Compute alignment correctly
The code previously assumed that everything has to be aligned to a 4 byte
boundary. This assumption is wrong as e.g. the STR struct from xproto shows.
Instead, each type has to be aligned to its natural alignment. So a char doesn't
need any alignment, a INT16 gets aligned to a 2-byte-boundary and a INT32 gets
the old 4 byte alignment.
I'm not 100% sure that this commit is correct, but some quick tests with awesome
and cairo-xcb went well.
This commit causes lots of dead assignments to xcb_align_to since only the last
field's alignment is actually used, but this simplified this patch a lot.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=34037
Signed-off-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Peter Harris <pharris@opentext.com>
Michael Stapelberg [Thu, 18 Aug 2011 19:38:28 +0000 (21:38 +0200)]
Drop AI_ADDRCONFIG when resolving TCP addresses
When a system is completely offline (no interface has an IP address but 'lo'),
xcb could not connect to localhost via TCP, e.g. connections with
DISPLAY=127.0.0.1:0 fail.
AI_ADDRCONFIG will only return IPv4 addresses if the system has an IPv4
address configured (likewise for IPv6). This also takes place when
resolving localhost (or 127.0.0.0/8 or ::1). Also, as per RFC 3493,
loopback addresses are not considered as valid addresses when
determining whether to return IPv4 or IPv6 addresses.
As per mailing-list discussion on the xcb list started with message
20110813215405.
5818a0c1@x200, the AI_ADDRCONFIG flag is there for historical
reasons:
In the old days, the "default on-link" assumption in IPv6 made the flag vey
much indispensable for dual-stack hosts on IPv4-only networks. Without it,
there would be long timeouts trying non-existent IPv6 connectivity. Nowadays,
this assumption has been flagged as historic bad practice by IETF, and hosts
should have been updated to not make it anymore.
Then AI_ADDRCONFIG became mostly cosmetic: it avoids phony "Protocol family
not supported" or "Host unreachable" errors while trying to connect to a dual-
stack mode from a host with no support for source address selection.
Nowadays, on up-to-date systems, this flag is completely useless. Then again,
I understood only the very latest MacOS release is "up-to-date" with this
definition.
James Jones [Thu, 12 May 2011 06:22:22 +0000 (23:22 -0700)]
Insert, not append explicit xcbgen dir python path
If a the path to the xcb python generate libs is
explicitly specified to c_client.py, insert it in
the python path list just after the local dir entry,
rather than appending it to the existing paths.
This keeps a global/distro install of xcb from
overriding a local build of the xcb proto files.
Signed-off-by: James Jones <jajones@nvidia.com>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
David Coles [Sat, 9 Apr 2011 00:47:05 +0000 (17:47 -0700)]
Add support for building with Python 3
Python 3 introduces some language changes that cause issues when running
c_client.py. This also breaks compatibility with Python 2.5 since it does not
support the "as" statement in try/except blocks and does not have reduce() in
the functools package.
The main changes are:
* try/except blocks require `except ... as ...:` to resolve syntactical ambiguity
* map() and filter() return iterators rather than lists in Python 3
* reduce() is now in functools package (and not built-in in Python 3)
* Dictionaries don't have a has_key() method in Python 3
* None and int types can't be directly compared in Python 3
* print() is a statement in Python 3
See http://diveintopython3.org/porting-code-to-python-3-with-2to3.html and
PEP-3110 for details.
Verified on Python 2.6.5 and 3.1.3.
Signed-off-by: David Coles <dcoles@gaikai.com>
Signed-off-by: Julien Danjou <julien@danjou.info>
Jamey Sharp [Tue, 12 Apr 2011 20:09:23 +0000 (13:09 -0700)]
Revert "Introduce xcb_wait_for_event_until, for consuming responses in wire-order."
This function was intended to allow libX11 to fix a multi-threaded hang,
but the corresponding libX11 patch caused single-threaded apps to spin
sometimes. Since I've retracted that patch, this patch has no users and
shouldn't go into a release unless/until that changes.
This reverts commit
2415c11dec5e5adb0c17f98aa52fbb371a4f8f23.
Conflicts:
src/xcb.h
src/xcb_in.c
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Rami Ylimäki [Tue, 22 Mar 2011 12:33:23 +0000 (14:33 +0200)]
Introduce a variant of xcb_poll_for_event for examining event queue.
In some circumstances using xcb_poll_for_event is suboptimal because
it checks the connection for new events. This may lead to a lot of
failed nonblocking read system calls.
Signed-off-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Alan Coopersmith [Tue, 5 Apr 2011 04:36:47 +0000 (21:36 -0700)]
If protocol is "unix", use a Unix domain socket, not TCP
Fixes fallback to local connections from Xlib's XOpenDisplay(), which
will try with protocol "unix" if a hostname is specified and tcp fails
(as it usually will now that most OS'es ship with -nolisten tcp enabled).
Also fixes explicitly specifying DISPLAY as "unix/foo:0", which Xlib
previously accepted for Unix domain sockets.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Alan Coopersmith [Tue, 5 Apr 2011 04:28:00 +0000 (21:28 -0700)]
Make launchd code in xcb_util.c match surrounding code indent levels
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Carlos Garnacho [Tue, 5 Oct 2010 16:03:22 +0000 (18:03 +0200)]
Handle XGE events with the "send event" flag
This patch is necessary so xcb reads the payload after the message
for GenericEvents with the 0x80 flag turned on.
Signed-off-by: Carlos Garnacho <carlosg@gnome.org>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Alan Coopersmith [Tue, 5 Apr 2011 03:20:16 +0000 (20:20 -0700)]
Add #include <sys/socket.h> to xcb_conn.c
Solves compiler warning on Solaris:
"xcb_conn.c", line 304: warning: implicit function declaration: shutdown
Also provides system definition of SHUT_RDWR on Solaris 11.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Alan Coopersmith [Tue, 5 Apr 2011 03:12:56 +0000 (20:12 -0700)]
Remove unused DECnet code
"unifdef -UDNETCONN src/xcb_util.c" plus re-indenting code that was
formerly in the else clause after a DECnet check.
DECnet support has been removed from most of the X.Org code base for
several years, and it appears DNETCONN was never defined in XCB.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Alan Coopersmith [Mon, 4 Apr 2011 23:32:45 +0000 (16:32 -0700)]
Use special path to sockets when running under Solaris Trusted Extensions
Solaris Trusted Extensions puts the endpoints for the X server's Unix
domain sockets in a special directory shared from the global zone to
each of the labeled zones, since each labeled zone has a separate /tmp.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Peter Harris <pharris@opentext.com>
Rami Ylimäki [Wed, 23 Mar 2011 15:47:50 +0000 (17:47 +0200)]
Prevent theoretical double free and leak on get_peer_sock_name.
Variable new_sockname will leak and sockname will be double freed if
both of the cases shown below are true.
1. realloc succeeds and doesn't return the original pointer
2. calling socket_func fails
Signed-off-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Signed-off-by: Erkki Seppälä <erkki.seppala@vincit.fi>
Reviewed-by: Arnaud Fontaine <arnau@debian.org>
Signed-off-by: Peter Harris <pharris@opentext.com>
Jamey Sharp [Sun, 20 Mar 2011 03:04:55 +0000 (20:04 -0700)]
Delete the old c-client.xsl.
It hasn't been used since libxcb 1.1.90.1, released in 2008.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Jamey Sharp [Sat, 19 Mar 2011 03:56:07 +0000 (20:56 -0700)]
Introduce xcb_wait_for_event_until, for consuming responses in wire-order.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@freedesktop.org>
Jamey Sharp [Sat, 19 Mar 2011 00:36:32 +0000 (17:36 -0700)]
Dequeue readers that can't receive any new responses.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@freedesktop.org>
Jamey Sharp [Fri, 18 Mar 2011 22:37:34 +0000 (15:37 -0700)]
Factor reader_list management out of wait_for_reply.
Later patches will insert reader_list entries from other entry points.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@freedesktop.org>
Jamey Sharp [Sat, 19 Mar 2011 01:18:41 +0000 (18:18 -0700)]
Enable AM_SILENT_RULES on automake 1.11 or newer.
This incantation is supposed to be a no-op on earlier automake versions.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@freedesktop.org>
Rami Ylimäki [Wed, 13 Oct 2010 14:48:13 +0000 (17:48 +0300)]
Prevent reply waiters from being blocked.
It's possible to call xcb_wait_for_reply more than once for a single
request. In this case we are nice and let reply waiters continue so
that they can notice that the reply is not available
anymore. Otherwise an event waiter could just signal the reply waiter
that got its reply to continue but leave a waiter for an earlier reply
blocked.
Below is an example sequence for reproducing this problem.
thread #1 (XNextEvent)
- waits for events
thread #2 (XSync)
- executes request #2
- waits for reply #2
thread #1
- reads reply #2
- signals waiter of reply #2 to continue
- waits for events
thread #2
- handles reply #2
thread #3 (XCloseDisplay)
- executes request #3
- waits for reply #2
thread #1
- reads reply #3
- nobody is waiting for reply #3 so don't signal
- wait for events
Of course it may be questionable to wait for a reply twice, but XCB
should be smart enough to let clients continue if they choose to do
so.
Signed-off-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Jamey Sharp [Sun, 13 Mar 2011 16:41:10 +0000 (09:41 -0700)]
Include XKB in ./configure's summary output.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Jamey Sharp [Sun, 13 Mar 2011 16:18:24 +0000 (09:18 -0700)]
Merge branch 'master' of git+ssh://git.freedesktop.org/git/xcb/libxcb
Apparently I forgot to push these months ago.
Jeremy Huddleston [Fri, 4 Mar 2011 20:41:55 +0000 (12:41 -0800)]
darwin: Don't use poll() when expected to run on darwin10 and prior
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Peter Harris [Thu, 23 Dec 2010 18:32:17 +0000 (13:32 -0500)]
Don't try to sizeof(void)
sizeof(void) is a gcc extension, and not portable.
Xorg Bugzilla 31959
http://bugs.freedesktop.org/show_bug.cgi?id=31959
http://lists.freedesktop.org/archives/xcb/2010-May/006039.html
Signed-off-by: Peter Harris <pharris@opentext.com>
Tested-by: Cyril Brulebois <kibi@debian.org>
Vincent Torri [Sun, 28 Nov 2010 13:02:40 +0000 (14:02 +0100)]
fix Windows build and installation
Peter Harris [Thu, 23 Dec 2010 18:04:40 +0000 (13:04 -0500)]
Merge branch 'master' of git://anongit.freedesktop.org/~peterh/libxcb
Jeetu Golani [Sun, 12 Dec 2010 21:48:41 +0000 (16:48 -0500)]
Don't validate FD_SETSIZE on Win32
Windows' file handles have never been small or consecutive, so Windows'
select has always been implemented the same way as everyone else's poll.
On Windows, FD_SETSIZE is the size of the poll array, not the maximum
SOCKET number.
Signed-off-by: Peter Harris <git@peter.is-a-geek.org>
Uli Schlachter [Wed, 17 Nov 2010 19:26:11 +0000 (20:26 +0100)]
xcb_take_socket: Document sequence wrap requirements
If lots of requests are send without one causing a reply, xcb can get confused
about the current sequence number of a reply. Document the requirements of an
external socket owner to avoid this problem.
The return_socket callback for xcb_take_socket() originally was supposed to
return the last sequence number used, but the version committed to libxcb never
actually had this signature. This fixes the function's documentation not to
mention this non-existent return value.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Signed-off-by: Julien Danjou <julien@danjou.info>
Nick Bowler [Thu, 11 Nov 2010 01:49:41 +0000 (20:49 -0500)]
xcb_auth: Fix memory leak in _xcb_get_auth_info.
If the initial get_peer_sock_name(getpeername ...) succeeds, the
pointer to allocated memory is overwritten by the later call to
get_peer_sock_name(getsockname ...). Fix that up by freeing
the allocated memory before overwriting the pointer.
Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Signed-off-by: Julien Danjou <julien@danjou.info>
Jamey Sharp [Sun, 10 Oct 2010 00:13:45 +0000 (17:13 -0700)]
xcb_in: Use 64-bit sequence numbers internally everywhere.
Widen sequence numbers on entry to those public APIs that still take
32-bit sequence numbers.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Jamey Sharp [Sat, 9 Oct 2010 20:19:05 +0000 (13:19 -0700)]
xcb_discard_reply: Simplify by re-using poll_for_reply helper.
If you discard a sequence number that has multiple responses already
read, this will do more allocations than necessary. But nobody cares
about ListFontsWithInfo.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Jamey Sharp [Sat, 9 Oct 2010 19:32:05 +0000 (12:32 -0700)]
xcb_request_check: Hold the I/O lock while deciding to sync.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Jamey Sharp [Sat, 9 Oct 2010 11:08:18 +0000 (04:08 -0700)]
xcb_send_request: Send all requests using a common internal send_request.
This simplifies the critical section of xcb_send_request and fixes a
couple of subtle bugs:
- It's possible for xcb_send_request to need to issue two sync requests
before it can issue the real request. Previously, we counted sequence
numbers as if both were issued, but only one went out on the wire.
- The test for whether to sync at 32-bit sequence number wrap has been
incorrect since we switched to 64-bit sequence numbers internally.
This change means that if the output queue was already full and the
current request is bigger than the output queue, XCB will do one more
write syscall than it did before. But syncs are rare and small requests
are the norm, so this shouldn't be a measurable difference.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Peter Harris [Thu, 23 Sep 2010 03:15:38 +0000 (23:15 -0400)]
Fix _unserialize of reply headers
This cleans up a number of warnings, and passes the sequence number
through correctly.
Signed-off-by: Peter Harris <pharris@opentext.com>
Peter Harris [Thu, 23 Sep 2010 02:32:34 +0000 (22:32 -0400)]
Clean up a couple of warnings in xprint
Signed-off-by: Peter Harris <pharris@opentext.com>
Peter Harris [Thu, 23 Sep 2010 01:16:51 +0000 (21:16 -0400)]
Make *_unserialize safe to use on buffers in-place
By calling memmove instead of memcpy, and walking the buffer backward
from the end, *_unserialize is safe to use in-place.
Signed-off-by: Peter Harris <pharris@opentext.com>
Peter Harris [Fri, 10 Sep 2010 19:51:56 +0000 (15:51 -0400)]
Fix memory leak in _sizeof implemented with _unserialize
Signed-off-by: Peter Harris <pharris@opentext.com>
Peter Harris [Wed, 8 Sep 2010 19:57:00 +0000 (15:57 -0400)]
Don't emit out-of-module sizeof definitions
Signed-off-by: Peter Harris <pharris@opentext.com>
Josh Triplett [Sun, 19 Sep 2010 18:38:06 +0000 (20:38 +0200)]
Allow disconnecting connections that are in error state.
In support of this, consolidate the two static error_connection
definitions into one so we don't try to free the static out-of-memory
error_connection.
Commit by Josh Triplett and Jamey Sharp.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Peter Harris [Fri, 10 Sep 2010 19:53:13 +0000 (15:53 -0400)]
Add xkb.* to gitignore
Signed-off-by: Peter Harris <pharris@opentext.com>
Peter Harris [Wed, 8 Sep 2010 18:41:52 +0000 (14:41 -0400)]
Merge branch 'gsoc2010' of git://anongit.freedesktop.org/~chr/libxcb
Jamey Sharp [Sat, 4 Sep 2010 17:17:21 +0000 (10:17 -0700)]
_xcb_conn_wait: Shut down the connection on unexpected poll() events.
If a client calls close(2) on the connection's file descriptor and then
flushes writes, libxcb causes a hang in the client.
Any flush eventually calls _xcb_out_send() with has the following loop:
while(ret && *count)
ret = _xcb_conn_wait(c, &c->out.cond, vector, count);
_xcb_conn_wait(), if built with USE_POLL, gets the POLLNVAL error. It only
checks for POLLIN and POLLOUT though, ignoring the error. Return value is 1,
count is unmodified, leaving us with an endless loop and a client hang.
XTS testcase Xlib3/XConnectionNumber triggers this bug. It creates a display
connection, closes its file descriptor, tries to send a no-op, and then expects
an error.
http://cgit.freedesktop.org/xorg/test/xts/tree/xts5/Xlib3/XConnectionNumber.m
If poll returned POLLHUP or POLLERR, we might see the same result.
If poll returns any event we didn't ask for, this patch causes
_xcb_conn_shutdown() to be invoked and an error returned. This matches the
behaviour if select(2) is used instead of poll(2): select(2) returns -1 and
EBADF for an already closed file descriptor.
I believe this fix both is safe and will handle any similar error. POSIX says
that the only bits poll is permitted to set in revents are those bits that were
set in events, plus POLLHUP, POLLERR, and POLLNVAL. So if we see any flags we
didn't ask for then something has gone wrong.
Patch inspired by earlier proposals from Peter Hutterer and Aaron
Plattner--thanks!
Reported-by: Peter Hutterer <peter.hutterer@who-t.net>
Reported-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Aaron Plattner <aplattner@nvidia.com>
Cc: Peter Hutterer <peter.hutterer@who-t.net>
Cc: Dan Nicholson <dbn.lists@gmail.com>
Signed-off-by: Peter Harris <pharris@opentext.com>
Peter Harris [Tue, 31 Aug 2010 22:33:36 +0000 (18:33 -0400)]
Merge branch 'master' of git://github.com/topcat/xcb-win32
Conflicts:
src/xcb_conn.c
src/xcb_util.c
Signed-off-by: Peter Harris <pharris@opentext.com>
Aaron Plattner [Tue, 17 Aug 2010 15:04:41 +0000 (08:04 -0700)]
xcb_disconnect: call shutdown() to force a disconnect
Fixes the X Test Suite's XCloseDisplay-6 test, which has this (admittedly
ridiculous) behavior:
1. Create a window w.
2. Open two display connections, dpy1, and dpy2.
3. Grab the server using dpy1.
4. Fork.
5 (child). XSetProperty on w using dpy2.
5 (parent). Verify that no event was recieved on dpy1.
6 (parent). XCloseDisplay(dpy1).
6 (child). Verify that an event was received on dpy2.
It was failing because at step 6 (child), the server had not actually ungrabbed
yet because the file descriptor for dpy1 was still open in the child process.
Shutting down the socket during XCloseDisplay matches the behavior of non-XCB
Xlib, which calls shutdown() from _X11TransSocketDisconnect.
Thanks to Julien Cristau for noticing this.
Signed-off-by: Aaron Plattner <aplattner at nvidia.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Peter Harris <pharris@opentext.com>
Jamey Sharp [Tue, 24 Aug 2010 16:17:38 +0000 (09:17 -0700)]
xcb_request_check: Sync even if an event was read for this sequence.
This fixes the test case I have so far for Havoc's report that
xcb_request_check hangs.
Rationale: Since we have a void cookie, request_expected can't have been
set equal to this sequence number when the request was sent; it can only
have become equal due to the arrival of an event or error. If it became
equal due to an event then we still need to sync. If it became equal due
to an error, then request_completed will have been updated, which means
we correctly won't sync.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=29599
However, Havoc reports that he can still reproduce the problem, so we
may be revisiting this later.
Reported-by: Havoc Pennington <hp@pobox.com>
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Christoph Reimann [Mon, 16 Aug 2010 18:24:40 +0000 (20:24 +0200)]
small fix to get rid of some compiler warnings
also added very basic documentation for xkb