1 /* Threads compatibility routines for libgcc2 and libobjc. */
2 /* Compile this one with gcc. */
3 /* Copyright (C) 1997-2018 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 Under Section 7 of GPL version 3, you are granted additional
18 permissions described in the GCC Runtime Library Exception, version
19 3.1, as published by the Free Software Foundation.
21 You should have received a copy of the GNU General Public License and
22 a copy of the GCC Runtime Library Exception along with this program;
23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 <http://www.gnu.org/licenses/>. */
26 #ifndef GCC_GTHR_POSIX_H
27 #define GCC_GTHR_POSIX_H
29 /* POSIX threads specific definitions.
30 Easy, since the interface is just one-to-one mapping. */
33 #define __GTHREADS_CXX0X 1
37 #if ((defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)) \
38 || !defined(_GTHREAD_USE_MUTEX_TIMEDLOCK))
40 # if defined(_POSIX_TIMEOUTS) && _POSIX_TIMEOUTS >= 0
41 # define _GTHREAD_USE_MUTEX_TIMEDLOCK 1
43 # define _GTHREAD_USE_MUTEX_TIMEDLOCK 0
47 typedef pthread_t __gthread_t;
48 typedef pthread_key_t __gthread_key_t;
49 typedef pthread_once_t __gthread_once_t;
50 typedef pthread_mutex_t __gthread_mutex_t;
51 typedef pthread_mutex_t __gthread_recursive_mutex_t;
52 typedef pthread_cond_t __gthread_cond_t;
53 typedef struct timespec __gthread_time_t;
55 /* POSIX like conditional variables are supported. Please look at comments
56 in gthr.h for details. */
57 #define __GTHREAD_HAS_COND 1
59 #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
60 #define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
61 #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
62 #if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
63 #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
64 #elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
65 #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
67 #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
69 #define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER
70 #define __GTHREAD_TIME_INIT {0,0}
72 #ifdef _GTHREAD_USE_MUTEX_INIT_FUNC
73 # undef __GTHREAD_MUTEX_INIT
75 #ifdef _GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC
76 # undef __GTHREAD_RECURSIVE_MUTEX_INIT
77 # undef __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION
78 # define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
80 #ifdef _GTHREAD_USE_COND_INIT_FUNC
81 # undef __GTHREAD_COND_INIT
82 # define __GTHREAD_COND_INIT_FUNCTION __gthread_cond_init_function
85 #if SUPPORTS_WEAK && GTHREAD_USE_WEAK
86 # ifndef __gthrw_pragma
87 # define __gthrw_pragma(pragma)
89 # define __gthrw2(name,name2,type) \
90 static __typeof(type) name __attribute__ ((__weakref__(#name2))); \
91 __gthrw_pragma(weak type)
92 # define __gthrw_(name) __gthrw_ ## name
94 # define __gthrw2(name,name2,type)
95 # define __gthrw_(name) name
98 /* Typically, __gthrw_foo is a weak reference to symbol foo. */
99 #define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name)
101 __gthrw(pthread_once)
102 __gthrw(pthread_getspecific)
103 __gthrw(pthread_setspecific)
105 __gthrw(pthread_create)
106 __gthrw(pthread_join)
107 __gthrw(pthread_equal)
108 __gthrw(pthread_self)
109 __gthrw(pthread_detach)
111 __gthrw(pthread_cancel)
115 __gthrw(pthread_mutex_lock)
116 __gthrw(pthread_mutex_trylock)
117 #if _GTHREAD_USE_MUTEX_TIMEDLOCK
118 __gthrw(pthread_mutex_timedlock)
120 __gthrw(pthread_mutex_unlock)
121 __gthrw(pthread_mutex_init)
122 __gthrw(pthread_mutex_destroy)
124 __gthrw(pthread_cond_init)
125 __gthrw(pthread_cond_broadcast)
126 __gthrw(pthread_cond_signal)
127 __gthrw(pthread_cond_wait)
128 __gthrw(pthread_cond_timedwait)
129 __gthrw(pthread_cond_destroy)
131 __gthrw(pthread_key_create)
132 __gthrw(pthread_key_delete)
133 __gthrw(pthread_mutexattr_init)
134 __gthrw(pthread_mutexattr_settype)
135 __gthrw(pthread_mutexattr_destroy)
138 #if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)
140 __gthrw(pthread_exit)
141 #ifdef _POSIX_PRIORITY_SCHEDULING
142 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
143 __gthrw(sched_get_priority_max)
144 __gthrw(sched_get_priority_min)
145 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
146 #endif /* _POSIX_PRIORITY_SCHEDULING */
147 __gthrw(pthread_attr_destroy)
148 __gthrw(pthread_attr_init)
149 __gthrw(pthread_attr_setdetachstate)
150 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
151 __gthrw(pthread_getschedparam)
152 __gthrw(pthread_setschedparam)
153 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
154 #endif /* _LIBOBJC || _LIBOBJC_WEAK */
156 #if SUPPORTS_WEAK && GTHREAD_USE_WEAK
158 /* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if
159 -pthreads is not specified. The functions are dummies and most return an
160 error value. However pthread_once returns 0 without invoking the routine
161 it is passed so we cannot pretend that the interface is active if -pthreads
162 is not specified. On Solaris 2.5.1, the interface is not exposed at all so
163 we need to play the usual game with weak symbols. On Solaris 10 and up, a
164 working interface is always exposed. On FreeBSD 6 and later, libc also
165 exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up
166 to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc,
167 which means the alternate __gthread_active_p below cannot be used there. */
169 #if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__))
171 static volatile int __gthread_active = -1;
174 __gthread_trigger (void)
176 __gthread_active = 1;
180 __gthread_active_p (void)
182 static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER;
183 static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT;
185 /* Avoid reading __gthread_active twice on the main code path. */
186 int __gthread_active_latest_value = __gthread_active;
188 /* This test is not protected to avoid taking a lock on the main code
189 path so every update of __gthread_active in a threaded program must
190 be atomic with regard to the result of the test. */
191 if (__builtin_expect (__gthread_active_latest_value < 0, 0))
193 if (__gthrw_(pthread_once))
195 /* If this really is a threaded program, then we must ensure that
196 __gthread_active has been set to 1 before exiting this block. */
197 __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex);
198 __gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger);
199 __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex);
202 /* Make sure we'll never enter this block again. */
203 if (__gthread_active < 0)
204 __gthread_active = 0;
206 __gthread_active_latest_value = __gthread_active;
209 return __gthread_active_latest_value != 0;
212 #elif defined(__DragonFly__) && defined(_AVOID_WEAKREF)
215 * On DragonFly libpthread always brings libc so __isthreaded is available.
216 * __isthreaded is a special variable that is set by libpthread lib.
217 * Mainly for libgcc_pic.a usage case, ld.gold is not ready to handle such
218 * static relocatable lib in pthread+cxx shared lib linkages.
219 * Everything else should use weakref on pthread_cancel below.
222 #if defined(__cplusplus)
225 extern int __isthreaded; /* from libc */
226 #if defined(__cplusplus)
231 __gthread_active_p (void)
233 return (__isthreaded != 0);
236 #else /* neither FreeBSD nor Solaris */
238 /* For a program to be multi-threaded the only thing that it certainly must
239 be using is pthread_create. However, there may be other libraries that
240 intercept pthread_create with their own definitions to wrap pthreads
241 functionality for some purpose. In those cases, pthread_create being
242 defined might not necessarily mean that libpthread is actually linked
245 For the GNU C library, we can use a known internal name. This is always
246 available in the ABI, but no other library would define it. That is
247 ideal, since any public pthread function might be intercepted just as
248 pthread_create might be. __pthread_key_create is an "internal"
249 implementation symbol, but it is part of the public exported ABI. Also,
250 it's among the symbols that the static libpthread.a always links in
251 whenever pthread_create is used, so there is no danger of a false
252 negative result in any statically-linked, multi-threaded program.
254 For others, we choose pthread_cancel as a function that seems unlikely
255 to be redefined by an interceptor library. The bionic (Android) C
256 library does not provide pthread_cancel, so we do use pthread_create
257 there (and interceptor libraries lose). */
260 __gthrw2(__gthrw_(__pthread_key_create),
261 __pthread_key_create,
263 # define GTHR_ACTIVE_PROXY __gthrw_(__pthread_key_create)
264 #elif defined (__BIONIC__)
265 # define GTHR_ACTIVE_PROXY __gthrw_(pthread_create)
267 # define GTHR_ACTIVE_PROXY __gthrw_(pthread_cancel)
271 __gthread_active_p (void)
273 static void *const __gthread_active_ptr
274 = __extension__ (void *) >HR_ACTIVE_PROXY;
275 return __gthread_active_ptr != 0;
278 #endif /* FreeBSD or Solaris */
280 #else /* not SUPPORTS_WEAK */
282 /* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread
283 calls in shared flavors of the HP-UX C library. Most of the stubs
284 have no functionality. The details are described in the "libc cumulative
285 patch" for each subversion of HP-UX 11. There are two special interfaces
286 provided for checking whether an application is linked to a shared pthread
287 library or not. However, these interfaces aren't available in early
288 libpthread libraries. We also need a test that works for archive
289 libraries. We can't use pthread_once as some libc versions call the
290 init function. We also can't use pthread_create or pthread_attr_init
291 as these create a thread and thereby prevent changing the default stack
292 size. The function pthread_default_stacksize_np is available in both
293 the archive and shared versions of libpthread. It can be used to
294 determine the default pthread stack size. There is a stub in some
295 shared libc versions which returns a zero size if pthreads are not
296 active. We provide an equivalent stub to handle cases where libc
297 doesn't provide one. */
299 #if defined(__hppa__) && defined(__hpux__)
301 static volatile int __gthread_active = -1;
304 __gthread_active_p (void)
306 /* Avoid reading __gthread_active twice on the main code path. */
307 int __gthread_active_latest_value = __gthread_active;
310 if (__builtin_expect (__gthread_active_latest_value < 0, 0))
312 pthread_default_stacksize_np (0, &__s);
313 __gthread_active = __s ? 1 : 0;
314 __gthread_active_latest_value = __gthread_active;
317 return __gthread_active_latest_value != 0;
320 #else /* not hppa-hpux */
323 __gthread_active_p (void)
328 #endif /* hppa-hpux */
330 #endif /* SUPPORTS_WEAK */
334 /* This is the config.h file in libobjc/ */
341 /* Key structure for maintaining thread specific storage */
342 static pthread_key_t _objc_thread_storage;
343 static pthread_attr_t _objc_thread_attribs;
345 /* Thread local storage for a single thread */
346 static void *thread_local_storage = NULL;
348 /* Backend initialization functions */
350 /* Initialize the threads subsystem. */
352 __gthread_objc_init_thread_system (void)
354 if (__gthread_active_p ())
356 /* Initialize the thread storage key. */
357 if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0)
359 /* The normal default detach state for threads is
360 * PTHREAD_CREATE_JOINABLE which causes threads to not die
361 * when you think they should. */
362 if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0
363 && __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs,
364 PTHREAD_CREATE_DETACHED) == 0)
372 /* Close the threads subsystem. */
374 __gthread_objc_close_thread_system (void)
376 if (__gthread_active_p ()
377 && __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0
378 && __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0)
384 /* Backend thread functions */
386 /* Create a new thread of execution. */
387 static inline objc_thread_t
388 __gthread_objc_thread_detach (void (*func)(void *), void *arg)
390 objc_thread_t thread_id;
391 pthread_t new_thread_handle;
393 if (!__gthread_active_p ())
396 if (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs,
397 (void *) func, arg)))
398 thread_id = (objc_thread_t) new_thread_handle;
405 /* Set the current thread's priority. */
407 __gthread_objc_thread_set_priority (int priority)
409 if (!__gthread_active_p ())
413 #ifdef _POSIX_PRIORITY_SCHEDULING
414 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
415 pthread_t thread_id = __gthrw_(pthread_self) ();
417 struct sched_param params;
418 int priority_min, priority_max;
420 if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0)
422 if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1)
425 if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1)
428 if (priority > priority_max)
429 priority = priority_max;
430 else if (priority < priority_min)
431 priority = priority_min;
432 params.sched_priority = priority;
435 * The solaris 7 and several other man pages incorrectly state that
436 * this should be a pointer to policy but pthread.h is universally
439 if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0)
442 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
443 #endif /* _POSIX_PRIORITY_SCHEDULING */
448 /* Return the current thread's priority. */
450 __gthread_objc_thread_get_priority (void)
452 #ifdef _POSIX_PRIORITY_SCHEDULING
453 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
454 if (__gthread_active_p ())
457 struct sched_param params;
459 if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0)
460 return params.sched_priority;
465 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
466 #endif /* _POSIX_PRIORITY_SCHEDULING */
467 return OBJC_THREAD_INTERACTIVE_PRIORITY;
470 /* Yield our process time to another thread. */
472 __gthread_objc_thread_yield (void)
474 if (__gthread_active_p ())
475 __gthrw_(sched_yield) ();
478 /* Terminate the current thread. */
480 __gthread_objc_thread_exit (void)
482 if (__gthread_active_p ())
483 /* exit the thread */
484 __gthrw_(pthread_exit) (&__objc_thread_exit_status);
486 /* Failed if we reached here */
490 /* Returns an integer value which uniquely describes a thread. */
491 static inline objc_thread_t
492 __gthread_objc_thread_id (void)
494 if (__gthread_active_p ())
495 return (objc_thread_t) __gthrw_(pthread_self) ();
497 return (objc_thread_t) 1;
500 /* Sets the thread's local storage pointer. */
502 __gthread_objc_thread_set_data (void *value)
504 if (__gthread_active_p ())
505 return __gthrw_(pthread_setspecific) (_objc_thread_storage, value);
508 thread_local_storage = value;
513 /* Returns the thread's local storage pointer. */
515 __gthread_objc_thread_get_data (void)
517 if (__gthread_active_p ())
518 return __gthrw_(pthread_getspecific) (_objc_thread_storage);
520 return thread_local_storage;
523 /* Backend mutex functions */
525 /* Allocate a mutex. */
527 __gthread_objc_mutex_allocate (objc_mutex_t mutex)
529 if (__gthread_active_p ())
531 mutex->backend = objc_malloc (sizeof (pthread_mutex_t));
533 if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL))
535 objc_free (mutex->backend);
536 mutex->backend = NULL;
544 /* Deallocate a mutex. */
546 __gthread_objc_mutex_deallocate (objc_mutex_t mutex)
548 if (__gthread_active_p ())
553 * Posix Threads specifically require that the thread be unlocked
554 * for __gthrw_(pthread_mutex_destroy) to work.
559 count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend);
565 if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend))
568 objc_free (mutex->backend);
569 mutex->backend = NULL;
574 /* Grab a lock on a mutex. */
576 __gthread_objc_mutex_lock (objc_mutex_t mutex)
578 if (__gthread_active_p ()
579 && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0)
587 /* Try to grab a lock on a mutex. */
589 __gthread_objc_mutex_trylock (objc_mutex_t mutex)
591 if (__gthread_active_p ()
592 && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0)
600 /* Unlock the mutex */
602 __gthread_objc_mutex_unlock (objc_mutex_t mutex)
604 if (__gthread_active_p ()
605 && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0)
613 /* Backend condition mutex functions */
615 /* Allocate a condition. */
617 __gthread_objc_condition_allocate (objc_condition_t condition)
619 if (__gthread_active_p ())
621 condition->backend = objc_malloc (sizeof (pthread_cond_t));
623 if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL))
625 objc_free (condition->backend);
626 condition->backend = NULL;
634 /* Deallocate a condition. */
636 __gthread_objc_condition_deallocate (objc_condition_t condition)
638 if (__gthread_active_p ())
640 if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend))
643 objc_free (condition->backend);
644 condition->backend = NULL;
649 /* Wait on the condition */
651 __gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
653 if (__gthread_active_p ())
654 return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend,
655 (pthread_mutex_t *) mutex->backend);
660 /* Wake up all threads waiting on this condition. */
662 __gthread_objc_condition_broadcast (objc_condition_t condition)
664 if (__gthread_active_p ())
665 return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend);
670 /* Wake up one thread waiting on this condition. */
672 __gthread_objc_condition_signal (objc_condition_t condition)
674 if (__gthread_active_p ())
675 return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend);
683 __gthread_create (__gthread_t *__threadid, void *(*__func) (void*),
686 return __gthrw_(pthread_create) (__threadid, NULL, __func, __args);
690 __gthread_join (__gthread_t __threadid, void **__value_ptr)
692 return __gthrw_(pthread_join) (__threadid, __value_ptr);
696 __gthread_detach (__gthread_t __threadid)
698 return __gthrw_(pthread_detach) (__threadid);
702 __gthread_equal (__gthread_t __t1, __gthread_t __t2)
704 return __gthrw_(pthread_equal) (__t1, __t2);
707 static inline __gthread_t
708 __gthread_self (void)
710 return __gthrw_(pthread_self) ();
714 __gthread_yield (void)
716 return __gthrw_(sched_yield) ();
720 __gthread_once (__gthread_once_t *__once, void (*__func) (void))
722 if (__gthread_active_p ())
723 return __gthrw_(pthread_once) (__once, __func);
729 __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
731 return __gthrw_(pthread_key_create) (__key, __dtor);
735 __gthread_key_delete (__gthread_key_t __key)
737 return __gthrw_(pthread_key_delete) (__key);
741 __gthread_getspecific (__gthread_key_t __key)
743 return __gthrw_(pthread_getspecific) (__key);
747 __gthread_setspecific (__gthread_key_t __key, const void *__ptr)
749 return __gthrw_(pthread_setspecific) (__key, __ptr);
753 __gthread_mutex_init_function (__gthread_mutex_t *__mutex)
755 if (__gthread_active_p ())
756 __gthrw_(pthread_mutex_init) (__mutex, NULL);
760 __gthread_mutex_destroy (__gthread_mutex_t *__mutex)
762 if (__gthread_active_p ())
763 return __gthrw_(pthread_mutex_destroy) (__mutex);
769 __gthread_mutex_lock (__gthread_mutex_t *__mutex)
771 if (__gthread_active_p ())
772 return __gthrw_(pthread_mutex_lock) (__mutex);
778 __gthread_mutex_trylock (__gthread_mutex_t *__mutex)
780 if (__gthread_active_p ())
781 return __gthrw_(pthread_mutex_trylock) (__mutex);
786 #if _GTHREAD_USE_MUTEX_TIMEDLOCK
788 __gthread_mutex_timedlock (__gthread_mutex_t *__mutex,
789 const __gthread_time_t *__abs_timeout)
791 if (__gthread_active_p ())
792 return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout);
799 __gthread_mutex_unlock (__gthread_mutex_t *__mutex)
801 if (__gthread_active_p ())
802 return __gthrw_(pthread_mutex_unlock) (__mutex);
807 #if !defined( PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) \
808 || defined(_GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC)
810 __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
812 if (__gthread_active_p ())
814 pthread_mutexattr_t __attr;
817 __r = __gthrw_(pthread_mutexattr_init) (&__attr);
819 __r = __gthrw_(pthread_mutexattr_settype) (&__attr,
820 PTHREAD_MUTEX_RECURSIVE);
822 __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr);
824 __r = __gthrw_(pthread_mutexattr_destroy) (&__attr);
832 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
834 return __gthread_mutex_lock (__mutex);
838 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
840 return __gthread_mutex_trylock (__mutex);
843 #if _GTHREAD_USE_MUTEX_TIMEDLOCK
845 __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex,
846 const __gthread_time_t *__abs_timeout)
848 return __gthread_mutex_timedlock (__mutex, __abs_timeout);
853 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
855 return __gthread_mutex_unlock (__mutex);
859 __gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex)
861 return __gthread_mutex_destroy (__mutex);
864 #ifdef _GTHREAD_USE_COND_INIT_FUNC
866 __gthread_cond_init_function (__gthread_cond_t *__cond)
868 if (__gthread_active_p ())
869 __gthrw_(pthread_cond_init) (__cond, NULL);
874 __gthread_cond_broadcast (__gthread_cond_t *__cond)
876 return __gthrw_(pthread_cond_broadcast) (__cond);
880 __gthread_cond_signal (__gthread_cond_t *__cond)
882 return __gthrw_(pthread_cond_signal) (__cond);
886 __gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex)
888 return __gthrw_(pthread_cond_wait) (__cond, __mutex);
892 __gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
893 const __gthread_time_t *__abs_timeout)
895 return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout);
899 __gthread_cond_wait_recursive (__gthread_cond_t *__cond,
900 __gthread_recursive_mutex_t *__mutex)
902 return __gthread_cond_wait (__cond, __mutex);
906 __gthread_cond_destroy (__gthread_cond_t* __cond)
908 return __gthrw_(pthread_cond_destroy) (__cond);
911 #endif /* _LIBOBJC */
913 #endif /* ! GCC_GTHR_POSIX_H */