From be0f2008ac41c83db39d1d1112c0392dbb8b18e9 Mon Sep 17 00:00:00 2001 From: Carlos O'Donell Date: Tue, 8 Sep 2009 14:32:53 -0400 Subject: [PATCH] Implement new NPTL POSIX Threads ABI for HPPA. This version of the NPTL POSIX thread ABI for hppa does not break backwards compatibility with the the old Linuxthreads ABI, and is therefore suitable for release by distributions. sysdeps/unix/sysv/linux/hppa/ * internaltypes.h: New file. sysdeps/unix/sysv/linux/hppa/nptl/ * pthreadP.h: New file. * pthread.h: New file. * pthread_cond_broadcast.c: New file. * pthread_cond_destroy.c: New file. * pthread_cond_init.c: New file. * pthread_cond_signal.c: New file. * pthread_cond_timedwait.c: New file. * pthread_cond_wait.c: New file. * bits/pthreadtypes.h: Make pthread_mutex_t, pthread_rwlock_t, and pthread_cond_t backwards compatible. --- ChangeLog.hppa | 18 + sysdeps/unix/sysv/linux/hppa/internaltypes.h | 79 ++ .../unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h | 51 +- sysdeps/unix/sysv/linux/hppa/nptl/pthread.h | 1178 ++++++++++++++++++++ sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h | 17 + .../sysv/linux/hppa/nptl/pthread_cond_broadcast.c | 43 + .../sysv/linux/hppa/nptl/pthread_cond_destroy.c | 43 + .../unix/sysv/linux/hppa/nptl/pthread_cond_init.c | 44 + .../sysv/linux/hppa/nptl/pthread_cond_signal.c | 43 + .../sysv/linux/hppa/nptl/pthread_cond_timedwait.c | 45 + .../unix/sysv/linux/hppa/nptl/pthread_cond_wait.c | 44 + 11 files changed, 1601 insertions(+), 4 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/hppa/internaltypes.h create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread.h create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c create mode 100644 sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c diff --git a/ChangeLog.hppa b/ChangeLog.hppa index 60480d1..77227b0 100644 --- a/ChangeLog.hppa +++ b/ChangeLog.hppa @@ -1,3 +1,21 @@ +2009-09-08 Carlos O'Donell + + sysdeps/unix/sysv/linux/hppa/ + * internaltypes.h: New file. + + sysdeps/unix/sysv/linux/hppa/nptl/ + * pthreadP.h: New file. + * pthread.h: New file. + * pthread_cond_broadcast.c: New file. + * pthread_cond_destroy.c: New file. + * pthread_cond_init.c: New file. + * pthread_cond_signal.c: New file. + * pthread_cond_timedwait.c: New file. + * pthread_cond_wait.c: New file. + * bits/pthreadtypes.h: Make pthread_mutex_t, + pthread_rwlock_t, and pthread_cond_t backwards + compatible. + 2009-04-24 Carlos O'Donell * sysdeps/hppa/hppa1.1/s_signbit.c: New file. diff --git a/sysdeps/unix/sysv/linux/hppa/internaltypes.h b/sysdeps/unix/sysv/linux/hppa/internaltypes.h new file mode 100644 index 0000000..6eee0b3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/internaltypes.h @@ -0,0 +1,79 @@ +#include_next +#ifndef _INTERNAL_TYPES_H_HPPA_ +#define _INTERNAL_TYPES_H_HPPA_ 1 +#include + +/* In GLIBC 2.10 HPPA switched from Linuxthreads to NPTL, and in order +to maintain ABI compatibility with pthread_cond_t, some care had to be +taken. + +The NPTL pthread_cond_t grew in size. When HPPA switched to NPTL, we +dropped the use of ldcw, and switched to the kernel helper routine for +compare-and-swap. This allowed HPPA to use the 4-word 16-byte aligned +lock words, and alignment words to store the additional pthread_cond_t +data. Once organized properly the new NPTL pthread_cond_t was 1 word +smaller than the Linuxthreads version. + +However, we were faced with the case that users may have initialized the +pthread_cond_t with PTHREAD_COND_INITIALIZER. In this case, the first +four words were set to one, and must be cleared before any NPTL code +used these words. + +We didn't want to use LDCW, because it continues to be a source of bugs +when applications memset pthread_cond_t to all zeroes by accident. This +works on all other architectures where lock words are unlocked at zero. +Remember that because of the semantics of LDCW, a locked word is set to +zero, and an unlocked word is set to 1. + +Instead we used atomic_compare_and_exchange_val_acq, but we couldn't use +this on any of the pthread_cond_t words, otherwise it might interfere +with the current operation of the structure. To solve this problem we +used the left over word. + +If the stucture was initialized by a legacy Linuxthread +PTHREAD_COND_INITIALIZER it contained a 1, and this indicates that the +structure requires zeroing for NPTL. The first thread to come upon a +pthread_cond_t with a 1 in the __initializer field, will +compare-and-swap the value, placing a 2 there which will cause all other +threads using the same pthread_cond_t to wait for the completion of the +initialization. Lastly, we use a store (with memory barrier) to change +__initializer from 2 to 0. Note that the store is strongly ordered, but +we use the PA 1.1 compatible form which is ",ma" with zero offset. + +In the future, when the application is recompiled with NPTL +PTHREAD_COND_INITIALIZER it will be a quick compare-and-swap, which +fails because __initializer is zero, and the structure will be used as +is correctly. */ + +#define cond_compat_clear(var) \ +({ \ + int tmp = 0; \ + var->__data.__lock = 0; \ + var->__data.__futex = 0; \ + var->__data.__mutex = NULL; \ + /* Clear __initializer last, to indicate initialization is done. */ \ + __asm__ __volatile__ ("stw,ma %1,0(%0)" \ + : : "r" (&var->__data.__initializer), "r" (tmp) : "memory"); \ +}) + +#define cond_compat_check_and_clear(var) \ +({ \ + int ret; \ + volatile int *value = &var->__data.__initializer; \ + if ((ret = atomic_compare_and_exchange_val_acq(value, 2, 1))) \ + { \ + if (ret == 1) \ + { \ + /* Initialize structure. */ \ + cond_compat_clear (var); \ + } \ + else \ + { \ + /* Yield until structure is initialized. */ \ + while (*value == 2) sched_yield (); \ + } \ + } \ +}) + +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h index d6eb975..87c1a55 100644 --- a/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h +++ b/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h @@ -34,7 +34,7 @@ #define __SIZEOF_PTHREAD_ATTR_T 36 #define __SIZEOF_PTHREAD_BARRIER_T 48 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4 -#define __SIZEOF_PTHREAD_COND_T 64 +#define __SIZEOF_PTHREAD_COND_T 48 #define __SIZEOF_PTHREAD_CONDATTR_T 4 #define __SIZEOF_PTHREAD_MUTEX_T 48 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4 @@ -70,12 +70,22 @@ typedef union /* KIND must stay at this position in the structure to maintain binary compatibility. */ int __kind; + /* The old 4-word 16-byte aligned lock. This is initalized + to all ones by the Linuxthreads PTHREAD_MUTEX_INITIALIZER. + Unused in NPTL. */ + int __compat_padding[4]; + /* In the old structure there are 4 words left due to alignment. + In NPTL two words are used. */ unsigned int __nusers; __extension__ union { int __spins; __pthread_slist_t __list; }; + /* Two more words are left before the NPTL + pthread_mutex_t is larger than Linuxthreads. */ + int __reserved1; + int __reserved2; } __data; char __size[__SIZEOF_PTHREAD_MUTEX_T]; long int __align; @@ -89,19 +99,37 @@ typedef union /* Data structure for conditional variable handling. The structure of - the attribute type is not exposed on purpose. */ + the attribute type is not exposed on purpose. However, this structure + is exposed via PTHREAD_COND_INITIALIZER, and because of this, the + Linuxthreads version sets the first four ints to one. In the NPTL + version we must check, in every function using pthread_cond_t, + for the static Linuxthreads initializer and clear the appropriate + words. */ typedef union { struct { + /* In the old Linuxthreads pthread_cond_t, this is the + start of the 4-word lock structure, the next four words + are set all to 1 by the Linuxthreads + PTHREAD_COND_INITIALIZER. */ int __lock; + /* Tracks the initialization of this structure: + 0 initialized with NPTL PTHREAD_COND_INITIALIZER. + 1 initialized with Linuxthreads PTHREAD_COND_INITIALIZER. + 2 initialization in progress. */ + int __initializer; unsigned int __futex; + void *__mutex; + /* In the old Linuxthreads this would have been the start + of the pthread_fastlock status word. */ __extension__ unsigned long long int __total_seq; __extension__ unsigned long long int __wakeup_seq; __extension__ unsigned long long int __woken_seq; - void *__mutex; unsigned int __nwaiters; unsigned int __broadcast_seq; + /* The NPTL pthread_cond_t is exactly the same size as + the Linuxthreads version, there are no words to spare. */ } __data; char __size[__SIZEOF_PTHREAD_COND_T]; __extension__ long long int __align; @@ -129,19 +157,34 @@ typedef union { struct { + /* In the old Linuxthreads pthread_rwlock_t, this is the + start of the 4-word 16-byte aligned lock structure. The + next four words are all set to 1 by the Linuxthreads + PTHREAD_RWLOCK_INITIALIZER. We ignore them in NPTL. */ + int __compat_padding[4]; int __lock; unsigned int __nr_readers; unsigned int __readers_wakeup; unsigned int __writer_wakeup; unsigned int __nr_readers_queued; unsigned int __nr_writers_queued; + int __writer; + /* An unused word, reserved for future use. It was added + to maintain the location of the flags from the Linuxthreads + layout of this structure. */ + int __reserved1; /* FLAGS must stay at this position in the structure to maintain binary compatibility. */ unsigned char __pad2; unsigned char __pad1; unsigned char __shared; unsigned char __flags; - int __writer; + /* The NPTL pthread_rwlock_t is 4 words smaller than the + Linuxthreads version. One word is in the middle of the + structure, the other three are at the end. */ + int __reserved2; + int __reserved3; + int __reserved4; } __data; char __size[__SIZEOF_PTHREAD_RWLOCK_T]; long int __align; diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h b/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h new file mode 100644 index 0000000..7e27966 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h @@ -0,0 +1,1178 @@ +/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _PTHREAD_H +#define _PTHREAD_H 1 + +#include +#include +#include +#include + +#define __need_sigset_t +#include +#include +#include +#include + + +/* Detach state. */ +enum +{ + PTHREAD_CREATE_JOINABLE, +#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE + PTHREAD_CREATE_DETACHED +#define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED +}; + + +/* Mutex types. */ +enum +{ + PTHREAD_MUTEX_TIMED_NP, + PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_ADAPTIVE_NP +#ifdef __USE_UNIX98 + , + PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP, + PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL +#endif +#ifdef __USE_GNU + /* For compatibility. */ + , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP +#endif +}; + + +#ifdef __USE_XOPEN2K +/* Robust mutex or not flags. */ +enum +{ + PTHREAD_MUTEX_STALLED, + PTHREAD_MUTEX_STALLED_NP = PTHREAD_MUTEX_STALLED, + PTHREAD_MUTEX_ROBUST, + PTHREAD_MUTEX_ROBUST_NP = PTHREAD_MUTEX_ROBUST +}; +#endif + + +#ifdef __USE_UNIX98 +/* Mutex protocols. */ +enum +{ + PTHREAD_PRIO_NONE, + PTHREAD_PRIO_INHERIT, + PTHREAD_PRIO_PROTECT +}; +#endif + + +/* Mutex initializers. */ +#if __WORDSIZE == 64 +# define PTHREAD_MUTEX_INITIALIZER \ + { { 0, 0, 0, 0, 0, 0, { 0, 0 } } } +# ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0, 0 } } } +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0, 0 } } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0, 0 } } } +# endif +#else +# define PTHREAD_MUTEX_INITIALIZER \ + { { 0, 0, 0, 0, 0, { 0 } } } +# ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0 } } } +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0 } } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0 } } } +# endif +#endif + + +/* Read-write lock types. */ +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +enum +{ + PTHREAD_RWLOCK_PREFER_READER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, + PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP +}; + +/* Read-write lock initializers. */ +# define PTHREAD_RWLOCK_INITIALIZER \ + { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } } +# ifdef __USE_GNU +# if __WORDSIZE == 64 +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP } } +# else +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, \ + 0, 0, 0, 0 } } +# else +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\ + 0 } } +# endif +# endif +# endif +#endif /* Unix98 or XOpen2K */ + + +/* Scheduler inheritance. */ +enum +{ + PTHREAD_INHERIT_SCHED, +#define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED + PTHREAD_EXPLICIT_SCHED +#define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED +}; + + +/* Scope handling. */ +enum +{ + PTHREAD_SCOPE_SYSTEM, +#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM + PTHREAD_SCOPE_PROCESS +#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS +}; + + +/* Process shared or private flag. */ +enum +{ + PTHREAD_PROCESS_PRIVATE, +#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE + PTHREAD_PROCESS_SHARED +#define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED +}; + + + +/* Conditional variable handling. */ +#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } } + + +/* Cleanup buffers */ +struct _pthread_cleanup_buffer +{ + void (*__routine) (void *); /* Function to call. */ + void *__arg; /* Its argument. */ + int __canceltype; /* Saved cancellation type. */ + struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */ +}; + +/* Cancellation */ +enum +{ + PTHREAD_CANCEL_ENABLE, +#define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE + PTHREAD_CANCEL_DISABLE +#define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE +}; +enum +{ + PTHREAD_CANCEL_DEFERRED, +#define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED + PTHREAD_CANCEL_ASYNCHRONOUS +#define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS +}; +#define PTHREAD_CANCELED ((void *) -1) + + +/* Single execution handling. */ +#define PTHREAD_ONCE_INIT 0 + + +#ifdef __USE_XOPEN2K +/* Value returned by 'pthread_barrier_wait' for one of the threads after + the required number of threads have called this function. + -1 is distinct from 0 and all errno constants */ +# define PTHREAD_BARRIER_SERIAL_THREAD -1 +#endif + + +__BEGIN_DECLS + +/* Create a new thread, starting with execution of START-ROUTINE + getting passed ARG. Creation attributed come from ATTR. The new + handle is stored in *NEWTHREAD. */ +extern int pthread_create (pthread_t *__restrict __newthread, + __const pthread_attr_t *__restrict __attr, + void *(*__start_routine) (void *), + void *__restrict __arg) __THROW __nonnull ((1, 3)); + +/* Terminate calling thread. + + The registered cleanup handlers are called via exception handling + so we cannot mark this function with __THROW.*/ +extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__)); + +/* Make calling thread wait for termination of the thread TH. The + exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN + is not NULL. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_join (pthread_t __th, void **__thread_return); + +#ifdef __USE_GNU +/* Check whether thread TH has terminated. If yes return the status of + the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL. */ +extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW; + +/* Make calling thread wait for termination of the thread TH, but only + until TIMEOUT. The exit status of the thread is stored in + *THREAD_RETURN, if THREAD_RETURN is not NULL. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return, + __const struct timespec *__abstime); +#endif + +/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN. + The resources of TH will therefore be freed immediately when it + terminates, instead of waiting for another thread to perform PTHREAD_JOIN + on it. */ +extern int pthread_detach (pthread_t __th) __THROW; + + +/* Obtain the identifier of the current thread. */ +extern pthread_t pthread_self (void) __THROW __attribute__ ((__const__)); + +/* Compare two thread identifiers. */ +extern int pthread_equal (pthread_t __thread1, pthread_t __thread2) __THROW; + + +/* Thread attribute handling. */ + +/* Initialize thread attribute *ATTR with default attributes + (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER, + no user-provided stack). */ +extern int pthread_attr_init (pthread_attr_t *__attr) __THROW __nonnull ((1)); + +/* Destroy thread attribute *ATTR. */ +extern int pthread_attr_destroy (pthread_attr_t *__attr) + __THROW __nonnull ((1)); + +/* Get detach state attribute. */ +extern int pthread_attr_getdetachstate (__const pthread_attr_t *__attr, + int *__detachstate) + __THROW __nonnull ((1, 2)); + +/* Set detach state attribute. */ +extern int pthread_attr_setdetachstate (pthread_attr_t *__attr, + int __detachstate) + __THROW __nonnull ((1)); + + +/* Get the size of the guard area created for stack overflow protection. */ +extern int pthread_attr_getguardsize (__const pthread_attr_t *__attr, + size_t *__guardsize) + __THROW __nonnull ((1, 2)); + +/* Set the size of the guard area created for stack overflow protection. */ +extern int pthread_attr_setguardsize (pthread_attr_t *__attr, + size_t __guardsize) + __THROW __nonnull ((1)); + + +/* Return in *PARAM the scheduling parameters of *ATTR. */ +extern int pthread_attr_getschedparam (__const pthread_attr_t *__restrict + __attr, + struct sched_param *__restrict __param) + __THROW __nonnull ((1, 2)); + +/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */ +extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr, + __const struct sched_param *__restrict + __param) __THROW __nonnull ((1, 2)); + +/* Return in *POLICY the scheduling policy of *ATTR. */ +extern int pthread_attr_getschedpolicy (__const pthread_attr_t *__restrict + __attr, int *__restrict __policy) + __THROW __nonnull ((1, 2)); + +/* Set scheduling policy in *ATTR according to POLICY. */ +extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy) + __THROW __nonnull ((1)); + +/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */ +extern int pthread_attr_getinheritsched (__const pthread_attr_t *__restrict + __attr, int *__restrict __inherit) + __THROW __nonnull ((1, 2)); + +/* Set scheduling inheritance mode in *ATTR according to INHERIT. */ +extern int pthread_attr_setinheritsched (pthread_attr_t *__attr, + int __inherit) + __THROW __nonnull ((1)); + + +/* Return in *SCOPE the scheduling contention scope of *ATTR. */ +extern int pthread_attr_getscope (__const pthread_attr_t *__restrict __attr, + int *__restrict __scope) + __THROW __nonnull ((1, 2)); + +/* Set scheduling contention scope in *ATTR according to SCOPE. */ +extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope) + __THROW __nonnull ((1)); + +/* Return the previously set address for the stack. */ +extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict + __attr, void **__restrict __stackaddr) + __THROW __nonnull ((1, 2)) __attribute_deprecated__; + +/* Set the starting address of the stack of the thread to be created. + Depending on whether the stack grows up or down the value must either + be higher or lower than all the address in the memory block. The + minimal size of the block must be PTHREAD_STACK_MIN. */ +extern int pthread_attr_setstackaddr (pthread_attr_t *__attr, + void *__stackaddr) + __THROW __nonnull ((1)) __attribute_deprecated__; + +/* Return the currently used minimal stack size. */ +extern int pthread_attr_getstacksize (__const pthread_attr_t *__restrict + __attr, size_t *__restrict __stacksize) + __THROW __nonnull ((1, 2)); + +/* Add information about the minimum stack size needed for the thread + to be started. This size must never be less than PTHREAD_STACK_MIN + and must also not exceed the system limits. */ +extern int pthread_attr_setstacksize (pthread_attr_t *__attr, + size_t __stacksize) + __THROW __nonnull ((1)); + +#ifdef __USE_XOPEN2K +/* Return the previously set address for the stack. */ +extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr, + void **__restrict __stackaddr, + size_t *__restrict __stacksize) + __THROW __nonnull ((1, 2, 3)); + +/* The following two interfaces are intended to replace the last two. They + require setting the address as well as the size since only setting the + address will make the implementation on some architectures impossible. */ +extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, + size_t __stacksize) __THROW __nonnull ((1)); +#endif + +#ifdef __USE_GNU +/* Thread created with attribute ATTR will be limited to run only on + the processors represented in CPUSET. */ +extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr, + size_t __cpusetsize, + __const cpu_set_t *__cpuset) + __THROW __nonnull ((1, 3)); + +/* Get bit set in CPUSET representing the processors threads created with + ATTR can run on. */ +extern int pthread_attr_getaffinity_np (__const pthread_attr_t *__attr, + size_t __cpusetsize, + cpu_set_t *__cpuset) + __THROW __nonnull ((1, 3)); + + +/* Initialize thread attribute *ATTR with attributes corresponding to the + already running thread TH. It shall be called on uninitialized ATTR + and destroyed with pthread_attr_destroy when no longer needed. */ +extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr) + __THROW __nonnull ((2)); +#endif + + +/* Functions for scheduling control. */ + +/* Set the scheduling parameters for TARGET_THREAD according to POLICY + and *PARAM. */ +extern int pthread_setschedparam (pthread_t __target_thread, int __policy, + __const struct sched_param *__param) + __THROW __nonnull ((3)); + +/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */ +extern int pthread_getschedparam (pthread_t __target_thread, + int *__restrict __policy, + struct sched_param *__restrict __param) + __THROW __nonnull ((2, 3)); + +/* Set the scheduling priority for TARGET_THREAD. */ +extern int pthread_setschedprio (pthread_t __target_thread, int __prio) + __THROW; + + +#ifdef __USE_UNIX98 +/* Determine level of concurrency. */ +extern int pthread_getconcurrency (void) __THROW; + +/* Set new concurrency level to LEVEL. */ +extern int pthread_setconcurrency (int __level) __THROW; +#endif + +#ifdef __USE_GNU +/* Yield the processor to another thread or process. + This function is similar to the POSIX `sched_yield' function but + might be differently implemented in the case of a m-on-n thread + implementation. */ +extern int pthread_yield (void) __THROW; + + +/* Limit specified thread TH to run only on the processors represented + in CPUSET. */ +extern int pthread_setaffinity_np (pthread_t __th, size_t __cpusetsize, + __const cpu_set_t *__cpuset) + __THROW __nonnull ((3)); + +/* Get bit set in CPUSET representing the processors TH can run on. */ +extern int pthread_getaffinity_np (pthread_t __th, size_t __cpusetsize, + cpu_set_t *__cpuset) + __THROW __nonnull ((3)); +#endif + + +/* Functions for handling initialization. */ + +/* Guarantee that the initialization function INIT_ROUTINE will be called + only once, even if pthread_once is executed several times with the + same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or + extern variable initialized to PTHREAD_ONCE_INIT. + + The initialization functions might throw exception which is why + this function is not marked with __THROW. */ +extern int pthread_once (pthread_once_t *__once_control, + void (*__init_routine) (void)) __nonnull ((1, 2)); + + +/* Functions for handling cancellation. + + Note that these functions are explicitly not marked to not throw an + exception in C++ code. If cancellation is implemented by unwinding + this is necessary to have the compiler generate the unwind information. */ + +/* Set cancelability state of current thread to STATE, returning old + state in *OLDSTATE if OLDSTATE is not NULL. */ +extern int pthread_setcancelstate (int __state, int *__oldstate); + +/* Set cancellation state of current thread to TYPE, returning the old + type in *OLDTYPE if OLDTYPE is not NULL. */ +extern int pthread_setcanceltype (int __type, int *__oldtype); + +/* Cancel THREAD immediately or at the next possibility. */ +extern int pthread_cancel (pthread_t __th); + +/* Test for pending cancellation for the current thread and terminate + the thread as per pthread_exit(PTHREAD_CANCELED) if it has been + cancelled. */ +extern void pthread_testcancel (void); + + +/* Cancellation handling with integration into exception handling. */ + +typedef struct +{ + struct + { + __jmp_buf __cancel_jmp_buf; + int __mask_was_saved; + } __cancel_jmp_buf[1]; + void *__pad[4]; +} __pthread_unwind_buf_t __attribute__ ((__aligned__)); + +/* No special attributes by default. */ +#ifndef __cleanup_fct_attribute +# define __cleanup_fct_attribute +#endif + + +/* Structure to hold the cleanup handler information. */ +struct __pthread_cleanup_frame +{ + void (*__cancel_routine) (void *); + void *__cancel_arg; + int __do_it; + int __cancel_type; +}; + +#if defined __GNUC__ && defined __EXCEPTIONS +# ifdef __cplusplus +/* Class to handle cancellation handler invocation. */ +class __pthread_cleanup_class +{ + void (*__cancel_routine) (void *); + void *__cancel_arg; + int __do_it; + int __cancel_type; + + public: + __pthread_cleanup_class (void (*__fct) (void *), void *__arg) + : __cancel_routine (__fct), __cancel_arg (__arg), __do_it (1) { } + ~__pthread_cleanup_class () { if (__do_it) __cancel_routine (__cancel_arg); } + void __setdoit (int __newval) { __do_it = __newval; } + void __defer () { pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, + &__cancel_type); } + void __restore () const { pthread_setcanceltype (__cancel_type, 0); } +}; + +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is canceled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ +# define pthread_cleanup_push(routine, arg) \ + do { \ + __pthread_cleanup_class __clframe (routine, arg) + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ +# define pthread_cleanup_pop(execute) \ + __clframe.__setdoit (execute); \ + } while (0) + +# ifdef __USE_GNU +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and sets it to deferred + cancellation. */ +# define pthread_cleanup_push_defer_np(routine, arg) \ + do { \ + __pthread_cleanup_class __clframe (routine, arg); \ + __clframe.__defer () + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ +# define pthread_cleanup_pop_restore_np(execute) \ + __clframe.__restore (); \ + __clframe.__setdoit (execute); \ + } while (0) +# endif +# else +/* Function called to call the cleanup handler. As an extern inline + function the compiler is free to decide inlining the change when + needed or fall back on the copy which must exist somewhere + else. */ +__extern_inline void +__pthread_cleanup_routine (struct __pthread_cleanup_frame *__frame) +{ + if (__frame->__do_it) + __frame->__cancel_routine (__frame->__cancel_arg); +} + +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is canceled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ +# define pthread_cleanup_push(routine, arg) \ + do { \ + struct __pthread_cleanup_frame __clframe \ + __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \ + = { .__cancel_routine = (routine), .__cancel_arg = (arg), \ + .__do_it = 1 }; + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ +# define pthread_cleanup_pop(execute) \ + __clframe.__do_it = (execute); \ + } while (0) + +# ifdef __USE_GNU +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and sets it to deferred + cancellation. */ +# define pthread_cleanup_push_defer_np(routine, arg) \ + do { \ + struct __pthread_cleanup_frame __clframe \ + __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \ + = { .__cancel_routine = (routine), .__cancel_arg = (arg), \ + .__do_it = 1 }; \ + (void) pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, \ + &__clframe.__cancel_type) + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ +# define pthread_cleanup_pop_restore_np(execute) \ + (void) pthread_setcanceltype (__clframe.__cancel_type, NULL); \ + __clframe.__do_it = (execute); \ + } while (0) +# endif +# endif +#else +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is canceled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ +# define pthread_cleanup_push(routine, arg) \ + do { \ + __pthread_unwind_buf_t __cancel_buf; \ + void (*__cancel_routine) (void *) = (routine); \ + void *__cancel_arg = (arg); \ + int not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \ + __cancel_buf.__cancel_jmp_buf, 0); \ + if (__builtin_expect (not_first_call, 0)) \ + { \ + __cancel_routine (__cancel_arg); \ + __pthread_unwind_next (&__cancel_buf); \ + /* NOTREACHED */ \ + } \ + \ + __pthread_register_cancel (&__cancel_buf); \ + do { +extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ +# define pthread_cleanup_pop(execute) \ + do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\ + } while (0); \ + __pthread_unregister_cancel (&__cancel_buf); \ + if (execute) \ + __cancel_routine (__cancel_arg); \ + } while (0) +extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; + +# ifdef __USE_GNU +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and sets it to deferred + cancellation. */ +# define pthread_cleanup_push_defer_np(routine, arg) \ + do { \ + __pthread_unwind_buf_t __cancel_buf; \ + void (*__cancel_routine) (void *) = (routine); \ + void *__cancel_arg = (arg); \ + int not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \ + __cancel_buf.__cancel_jmp_buf, 0); \ + if (__builtin_expect (not_first_call, 0)) \ + { \ + __cancel_routine (__cancel_arg); \ + __pthread_unwind_next (&__cancel_buf); \ + /* NOTREACHED */ \ + } \ + \ + __pthread_register_cancel_defer (&__cancel_buf); \ + do { +extern void __pthread_register_cancel_defer (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ +# define pthread_cleanup_pop_restore_np(execute) \ + do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\ + } while (0); \ + __pthread_unregister_cancel_restore (&__cancel_buf); \ + if (execute) \ + __cancel_routine (__cancel_arg); \ + } while (0) +extern void __pthread_unregister_cancel_restore (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; +# endif + +/* Internal interface to initiate cleanup. */ +extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute __attribute__ ((__noreturn__)) +# ifndef SHARED + __attribute__ ((__weak__)) +# endif + ; +#endif + +/* Function used in the macros. */ +struct __jmp_buf_tag; +extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROW; + + +/* Mutex handling. */ + +/* Initialize a mutex. */ +extern int pthread_mutex_init (pthread_mutex_t *__mutex, + __const pthread_mutexattr_t *__mutexattr) + __THROW __nonnull ((1)); + +/* Destroy a mutex. */ +extern int pthread_mutex_destroy (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + +/* Try locking a mutex. */ +extern int pthread_mutex_trylock (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + +/* Lock a mutex. */ +extern int pthread_mutex_lock (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + +#ifdef __USE_XOPEN2K +/* Wait until lock becomes available, or specified time passes. */ +extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex, + __const struct timespec *__restrict + __abstime) __THROW __nonnull ((1, 2)); +#endif + +/* Unlock a mutex. */ +extern int pthread_mutex_unlock (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + + +#ifdef __USE_UNIX98 +/* Get the priority ceiling of MUTEX. */ +extern int pthread_mutex_getprioceiling (__const pthread_mutex_t * + __restrict __mutex, + int *__restrict __prioceiling) + __THROW __nonnull ((1, 2)); + +/* Set the priority ceiling of MUTEX to PRIOCEILING, return old + priority ceiling value in *OLD_CEILING. */ +extern int pthread_mutex_setprioceiling (pthread_mutex_t *__restrict __mutex, + int __prioceiling, + int *__restrict __old_ceiling) + __THROW __nonnull ((1, 3)); +#endif + + +#ifdef __USE_XOPEN2K8 +/* Declare the state protected by MUTEX as consistent. */ +extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); +# ifdef __USE_GNU +extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); +# endif +#endif + + +/* Functions for handling mutex attributes. */ + +/* Initialize mutex attribute object ATTR with default attributes + (kind is PTHREAD_MUTEX_TIMED_NP). */ +extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy mutex attribute object ATTR. */ +extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr) + __THROW __nonnull ((1)); + +/* Get the process-shared flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_getpshared (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set the process-shared flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr, + int __pshared) + __THROW __nonnull ((1)); + +#ifdef __USE_UNIX98 +/* Return in *KIND the mutex kind attribute in *ATTR. */ +extern int pthread_mutexattr_gettype (__const pthread_mutexattr_t *__restrict + __attr, int *__restrict __kind) + __THROW __nonnull ((1, 2)); + +/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL, + PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or + PTHREAD_MUTEX_DEFAULT). */ +extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind) + __THROW __nonnull ((1)); + +/* Return in *PROTOCOL the mutex protocol attribute in *ATTR. */ +extern int pthread_mutexattr_getprotocol (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __protocol) + __THROW __nonnull ((1, 2)); + +/* Set the mutex protocol attribute in *ATTR to PROTOCOL (either + PTHREAD_PRIO_NONE, PTHREAD_PRIO_INHERIT, or PTHREAD_PRIO_PROTECT). */ +extern int pthread_mutexattr_setprotocol (pthread_mutexattr_t *__attr, + int __protocol) + __THROW __nonnull ((1)); + +/* Return in *PRIOCEILING the mutex prioceiling attribute in *ATTR. */ +extern int pthread_mutexattr_getprioceiling (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __prioceiling) + __THROW __nonnull ((1, 2)); + +/* Set the mutex prioceiling attribute in *ATTR to PRIOCEILING. */ +extern int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *__attr, + int __prioceiling) + __THROW __nonnull ((1)); +#endif + +#ifdef __USE_XOPEN2K +/* Get the robustness flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_getrobust (__const pthread_mutexattr_t *__attr, + int *__robustness) + __THROW __nonnull ((1, 2)); +# ifdef __USE_GNU +extern int pthread_mutexattr_getrobust_np (__const pthread_mutexattr_t *__attr, + int *__robustness) + __THROW __nonnull ((1, 2)); +# endif + +/* Set the robustness flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr, + int __robustness) + __THROW __nonnull ((1)); +# ifdef __USE_GNU +extern int pthread_mutexattr_setrobust_np (pthread_mutexattr_t *__attr, + int __robustness) + __THROW __nonnull ((1)); +# endif +#endif + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Functions for handling read-write locks. */ + +/* Initialize read-write lock RWLOCK using attributes ATTR, or use + the default values if later is NULL. */ +extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock, + __const pthread_rwlockattr_t *__restrict + __attr) __THROW __nonnull ((1)); + +/* Destroy read-write lock RWLOCK. */ +extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +/* Acquire read lock for RWLOCK. */ +extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +/* Try to acquire read lock for RWLOCK. */ +extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +# ifdef __USE_XOPEN2K +/* Try to acquire read lock for RWLOCK or return after specfied time. */ +extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock, + __const struct timespec *__restrict + __abstime) __THROW __nonnull ((1, 2)); +# endif + +/* Acquire write lock for RWLOCK. */ +extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +/* Try to acquire write lock for RWLOCK. */ +extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +# ifdef __USE_XOPEN2K +/* Try to acquire write lock for RWLOCK or return after specfied time. */ +extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock, + __const struct timespec *__restrict + __abstime) __THROW __nonnull ((1, 2)); +# endif + +/* Unlock RWLOCK. */ +extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + + +/* Functions for handling read-write lock attributes. */ + +/* Initialize attribute object ATTR with default values. */ +extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy attribute object ATTR. */ +extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr) + __THROW __nonnull ((1)); + +/* Return current setting of process-shared attribute of ATTR in PSHARED. */ +extern int pthread_rwlockattr_getpshared (__const pthread_rwlockattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set process-shared attribute of ATTR to PSHARED. */ +extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr, + int __pshared) + __THROW __nonnull ((1)); + +/* Return current setting of reader/writer preference. */ +extern int pthread_rwlockattr_getkind_np (__const pthread_rwlockattr_t * + __restrict __attr, + int *__restrict __pref) + __THROW __nonnull ((1, 2)); + +/* Set reader/write preference. */ +extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr, + int __pref) __THROW __nonnull ((1)); +#endif + + +/* Functions for handling conditional variables. */ + +/* Initialize condition variable COND using attributes ATTR, or use + the default values if later is NULL. */ +extern int pthread_cond_init (pthread_cond_t *__restrict __cond, + __const pthread_condattr_t *__restrict + __cond_attr) __THROW __nonnull ((1)); + +/* Destroy condition variable COND. */ +extern int pthread_cond_destroy (pthread_cond_t *__cond) + __THROW __nonnull ((1)); + +/* Wake up one thread waiting for condition variable COND. */ +extern int pthread_cond_signal (pthread_cond_t *__cond) + __THROW __nonnull ((1)); + +/* Wake up all threads waiting for condition variables COND. */ +extern int pthread_cond_broadcast (pthread_cond_t *__cond) + __THROW __nonnull ((1)); + +/* Wait for condition variable COND to be signaled or broadcast. + MUTEX is assumed to be locked before. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_cond_wait (pthread_cond_t *__restrict __cond, + pthread_mutex_t *__restrict __mutex) + __nonnull ((1, 2)); + +/* Wait for condition variable COND to be signaled or broadcast until + ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an + absolute time specification; zero is the beginning of the epoch + (00:00:00 GMT, January 1, 1970). + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond, + pthread_mutex_t *__restrict __mutex, + __const struct timespec *__restrict + __abstime) __nonnull ((1, 2, 3)); + +/* Functions for handling condition variable attributes. */ + +/* Initialize condition variable attribute ATTR. */ +extern int pthread_condattr_init (pthread_condattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy condition variable attribute ATTR. */ +extern int pthread_condattr_destroy (pthread_condattr_t *__attr) + __THROW __nonnull ((1)); + +/* Get the process-shared flag of the condition variable attribute ATTR. */ +extern int pthread_condattr_getpshared (__const pthread_condattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set the process-shared flag of the condition variable attribute ATTR. */ +extern int pthread_condattr_setpshared (pthread_condattr_t *__attr, + int __pshared) __THROW __nonnull ((1)); + +#ifdef __USE_XOPEN2K +/* Get the clock selected for the conditon variable attribute ATTR. */ +extern int pthread_condattr_getclock (__const pthread_condattr_t * + __restrict __attr, + __clockid_t *__restrict __clock_id) + __THROW __nonnull ((1, 2)); + +/* Set the clock selected for the conditon variable attribute ATTR. */ +extern int pthread_condattr_setclock (pthread_condattr_t *__attr, + __clockid_t __clock_id) + __THROW __nonnull ((1)); +#endif + + +#ifdef __USE_XOPEN2K +/* Functions to handle spinlocks. */ + +/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can + be shared between different processes. */ +extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared) + __THROW __nonnull ((1)); + +/* Destroy the spinlock LOCK. */ +extern int pthread_spin_destroy (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + +/* Wait until spinlock LOCK is retrieved. */ +extern int pthread_spin_lock (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + +/* Try to lock spinlock LOCK. */ +extern int pthread_spin_trylock (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + +/* Release spinlock LOCK. */ +extern int pthread_spin_unlock (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + + +/* Functions to handle barriers. */ + +/* Initialize BARRIER with the attributes in ATTR. The barrier is + opened when COUNT waiters arrived. */ +extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier, + __const pthread_barrierattr_t *__restrict + __attr, unsigned int __count) + __THROW __nonnull ((1)); + +/* Destroy a previously dynamically initialized barrier BARRIER. */ +extern int pthread_barrier_destroy (pthread_barrier_t *__barrier) + __THROW __nonnull ((1)); + +/* Wait on barrier BARRIER. */ +extern int pthread_barrier_wait (pthread_barrier_t *__barrier) + __THROW __nonnull ((1)); + + +/* Initialize barrier attribute ATTR. */ +extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy previously dynamically initialized barrier attribute ATTR. */ +extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr) + __THROW __nonnull ((1)); + +/* Get the process-shared flag of the barrier attribute ATTR. */ +extern int pthread_barrierattr_getpshared (__const pthread_barrierattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set the process-shared flag of the barrier attribute ATTR. */ +extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr, + int __pshared) + __THROW __nonnull ((1)); +#endif + + +/* Functions for handling thread-specific data. */ + +/* Create a key value identifying a location in the thread-specific + data area. Each thread maintains a distinct thread-specific data + area. DESTR_FUNCTION, if non-NULL, is called with the value + associated to that key when the key is destroyed. + DESTR_FUNCTION is not called if the value associated is NULL when + the key is destroyed. */ +extern int pthread_key_create (pthread_key_t *__key, + void (*__destr_function) (void *)) + __THROW __nonnull ((1)); + +/* Destroy KEY. */ +extern int pthread_key_delete (pthread_key_t __key) __THROW; + +/* Return current value of the thread-specific data slot identified by KEY. */ +extern void *pthread_getspecific (pthread_key_t __key) __THROW; + +/* Store POINTER in the thread-specific data slot identified by KEY. */ +extern int pthread_setspecific (pthread_key_t __key, + __const void *__pointer) __THROW ; + + +#ifdef __USE_XOPEN2K +/* Get ID of CPU-time clock for thread THREAD_ID. */ +extern int pthread_getcpuclockid (pthread_t __thread_id, + __clockid_t *__clock_id) + __THROW __nonnull ((2)); +#endif + + +/* Install handlers to be called when a new process is created with FORK. + The PREPARE handler is called in the parent process just before performing + FORK. The PARENT handler is called in the parent process just after FORK. + The CHILD handler is called in the child process. Each of the three + handlers can be NULL, meaning that no handler needs to be called at that + point. + PTHREAD_ATFORK can be called several times, in which case the PREPARE + handlers are called in LIFO order (last added with PTHREAD_ATFORK, + first called before FORK), and the PARENT and CHILD handlers are called + in FIFO (first added, first called). */ + +extern int pthread_atfork (void (*__prepare) (void), + void (*__parent) (void), + void (*__child) (void)) __THROW; + + +#ifdef __USE_EXTERN_INLINES +/* Optimizations. */ +__extern_inline int +__NTH (pthread_equal (pthread_t __thread1, pthread_t __thread2)) +{ + return __thread1 == __thread2; +} +#endif + +__END_DECLS + +#endif /* pthread.h */ + +#ifndef _PTHREAD_H_HPPA_ +#define _PTHREAD_H_HPPA_ 1 + +/* The pthread_cond_t initializer is compatible only with NPTL. We do not + want to be forwards compatible, we eventually want to drop the code + that has to clear the old LT initializer. */ +#undef PTHREAD_COND_INITIALIZER +#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, (void *) 0, 0, 0, 0, 0, 0 } } + +/* The pthread_mutex_t and pthread_rwlock_t initializers are compatible + only with NPTL. NPTL assumes pthread_rwlock_t is all zero. */ +#undef PTHREAD_MUTEX_INITIALIZER +#undef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP +#undef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP +#undef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP +/* Mutex initializers. */ +#define PTHREAD_MUTEX_INITIALIZER \ + { { 0, 0, 0, 0, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +#ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +#endif + +#undef PTHREAD_RWLOCK_INITIALIZER +#undef PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP +/* Read-write lock initializers. */ +#define PTHREAD_RWLOCK_INITIALIZER \ + { { { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } } +#ifdef __USE_GNU +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\ + 0, 0, 0 } } +#endif /* Unix98 or XOpen2K */ + +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h b/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h new file mode 100644 index 0000000..0e68ccf --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h @@ -0,0 +1,17 @@ +#include_next +#ifndef _PTHREADP_H_HPPA_ +#define _PTHREADP_H_HPPA_ 1 + +/* Internal cond functions. */ +extern int __pthread_cond_broadcast_internal (pthread_cond_t *cond); +extern int __pthread_cond_destroy_internal (pthread_cond_t *cond); +extern int __pthread_cond_init_internal (pthread_cond_t *cond, + const pthread_condattr_t *cond_attr); +extern int __pthread_cond_signal_internal (pthread_cond_t *cond); +extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond, + pthread_mutex_t *mutex, + const struct timespec *abstime); +extern int __pthread_cond_wait_internal (pthread_cond_t *cond, + pthread_mutex_t *mutex); +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c new file mode 100644 index 0000000..e43ce34 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c @@ -0,0 +1,43 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_broadcast (cond) + pthread_cond_t *cond; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_broadcast_internal (cond); +} +versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_broadcast +# define __pthread_cond_broadcast __pthread_cond_broadcast_internal +# include_next +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c new file mode 100644 index 0000000..3b606d9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c @@ -0,0 +1,43 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_destroy (cond) + pthread_cond_t *cond; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_destroy_internal (cond); +} +versioned_symbol (libpthread, __pthread_cond_destroy, pthread_cond_destroy, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_destroy +# define __pthread_cond_destroy __pthread_cond_destroy_internal +# include_next +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c new file mode 100644 index 0000000..a55c285 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c @@ -0,0 +1,44 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_init (cond, cond_attr) + pthread_cond_t *cond; + const pthread_condattr_t *cond_attr; +{ + cond_compat_clear (cond); + return __pthread_cond_init_internal (cond, cond_attr); +} +versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_init +# define __pthread_cond_init __pthread_cond_init_internal +# include_next +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c new file mode 100644 index 0000000..34a9747 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c @@ -0,0 +1,43 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_signal (cond) + pthread_cond_t *cond; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_signal_internal (cond); +} +versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_signal +# define __pthread_cond_signal __pthread_cond_signal_internal +# include_next +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c new file mode 100644 index 0000000..5e05621 --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_timedwait (cond, mutex, abstime) + pthread_cond_t *cond; + pthread_mutex_t *mutex; + const struct timespec *abstime; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_timedwait_internal (cond, mutex, abstime); +} +versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_timedwait +# define __pthread_cond_timedwait __pthread_cond_timedwait_internal +# include_next +#endif + diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c new file mode 100644 index 0000000..80115ed --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c @@ -0,0 +1,44 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_wait (cond, mutex) + pthread_cond_t *cond; + pthread_mutex_t *mutex; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_wait_internal (cond, mutex); +} +versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_wait +# define __pthread_cond_wait __pthread_cond_wait_internal +# include_next +#endif + -- 2.7.4