1 /* Threads compatibility routines for libgcc2 and libobjc. */
2 /* Compile this one with gcc. */
3 /* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
4 2008, 2009 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 Under Section 7 of GPL version 3, you are granted additional
19 permissions described in the GCC Runtime Library Exception, version
20 3.1, as published by the Free Software Foundation.
22 You should have received a copy of the GNU General Public License and
23 a copy of the GCC Runtime Library Exception along with this program;
24 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
25 <http://www.gnu.org/licenses/>. */
27 #ifndef GCC_GTHR_POSIX_H
28 #define GCC_GTHR_POSIX_H
30 /* POSIX threads specific definitions.
31 Easy, since the interface is just one-to-one mapping. */
34 #define __GTHREADS_CXX0X 1
36 /* Some implementations of <pthread.h> require this to be defined. */
37 #if !defined(_REENTRANT) && defined(__osf__)
44 typedef pthread_t __gthread_t;
45 typedef pthread_key_t __gthread_key_t;
46 typedef pthread_once_t __gthread_once_t;
47 typedef pthread_mutex_t __gthread_mutex_t;
48 typedef pthread_mutex_t __gthread_recursive_mutex_t;
49 typedef pthread_cond_t __gthread_cond_t;
50 typedef struct timespec __gthread_time_t;
52 /* POSIX like conditional variables are supported. Please look at comments
53 in gthr.h for details. */
54 #define __GTHREAD_HAS_COND 1
56 #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
57 #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
58 #if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
59 #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
60 #elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
61 #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
63 #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
65 #define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER
66 #define __GTHREAD_TIME_INIT {0,0}
68 #if SUPPORTS_WEAK && GTHREAD_USE_WEAK
69 # ifndef __gthrw_pragma
70 # define __gthrw_pragma(pragma)
72 # define __gthrw2(name,name2,type) \
73 static __typeof(type) name __attribute__ ((__weakref__(#name2))); \
74 __gthrw_pragma(weak type)
75 # define __gthrw_(name) __gthrw_ ## name
77 # define __gthrw2(name,name2,type)
78 # define __gthrw_(name) name
81 /* Typically, __gthrw_foo is a weak reference to symbol foo. */
82 #define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name)
84 /* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to
85 map a subset of the POSIX pthread API to mangled versions of their
87 #if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
88 #define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name)
89 __gthrw3(pthread_once)
90 __gthrw3(pthread_getspecific)
91 __gthrw3(pthread_setspecific)
93 __gthrw3(pthread_create)
94 __gthrw3(pthread_join)
95 __gthrw3(pthread_detach)
96 __gthrw3(pthread_equal)
97 __gthrw3(pthread_self)
98 __gthrw3(pthread_cancel)
101 __gthrw3(pthread_mutex_lock)
102 __gthrw3(pthread_mutex_trylock)
103 #ifdef _POSIX_TIMEOUTS
104 #if _POSIX_TIMEOUTS >= 0
105 __gthrw3(pthread_mutex_timedlock)
107 #endif /* _POSIX_TIMEOUTS */
108 __gthrw3(pthread_mutex_unlock)
109 __gthrw3(pthread_mutex_init)
110 __gthrw3(pthread_mutex_destroy)
112 __gthrw3(pthread_cond_broadcast)
113 __gthrw3(pthread_cond_signal)
114 __gthrw3(pthread_cond_wait)
115 __gthrw3(pthread_cond_timedwait)
116 __gthrw3(pthread_cond_destroy)
118 __gthrw(pthread_once)
119 __gthrw(pthread_getspecific)
120 __gthrw(pthread_setspecific)
122 __gthrw(pthread_create)
123 __gthrw(pthread_join)
124 __gthrw(pthread_equal)
125 __gthrw(pthread_self)
126 __gthrw(pthread_detach)
128 __gthrw(pthread_cancel)
132 __gthrw(pthread_mutex_lock)
133 __gthrw(pthread_mutex_trylock)
134 #ifdef _POSIX_TIMEOUTS
135 #if _POSIX_TIMEOUTS >= 0
136 __gthrw(pthread_mutex_timedlock)
138 #endif /* _POSIX_TIMEOUTS */
139 __gthrw(pthread_mutex_unlock)
140 __gthrw(pthread_mutex_init)
141 __gthrw(pthread_mutex_destroy)
143 __gthrw(pthread_cond_broadcast)
144 __gthrw(pthread_cond_signal)
145 __gthrw(pthread_cond_wait)
146 __gthrw(pthread_cond_timedwait)
147 __gthrw(pthread_cond_destroy)
150 __gthrw(pthread_key_create)
151 __gthrw(pthread_key_delete)
152 __gthrw(pthread_mutexattr_init)
153 __gthrw(pthread_mutexattr_settype)
154 __gthrw(pthread_mutexattr_destroy)
157 #if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)
159 #if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
160 __gthrw3(pthread_cond_init)
161 __gthrw3(pthread_exit)
163 __gthrw(pthread_cond_init)
164 __gthrw(pthread_exit)
165 #endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */
166 #ifdef _POSIX_PRIORITY_SCHEDULING
167 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
168 __gthrw(sched_get_priority_max)
169 __gthrw(sched_get_priority_min)
170 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
171 #endif /* _POSIX_PRIORITY_SCHEDULING */
172 __gthrw(pthread_attr_destroy)
173 __gthrw(pthread_attr_init)
174 __gthrw(pthread_attr_setdetachstate)
175 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
176 __gthrw(pthread_getschedparam)
177 __gthrw(pthread_setschedparam)
178 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
179 #endif /* _LIBOBJC || _LIBOBJC_WEAK */
181 #if SUPPORTS_WEAK && GTHREAD_USE_WEAK
183 /* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if
184 -pthreads is not specified. The functions are dummies and most return an
185 error value. However pthread_once returns 0 without invoking the routine
186 it is passed so we cannot pretend that the interface is active if -pthreads
187 is not specified. On Solaris 2.5.1, the interface is not exposed at all so
188 we need to play the usual game with weak symbols. On Solaris 10 and up, a
189 working interface is always exposed. On FreeBSD 6 and later, libc also
190 exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up
191 to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc,
192 which means the alternate __gthread_active_p below cannot be used there. */
194 #if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__))
196 static volatile int __gthread_active = -1;
199 __gthread_trigger (void)
201 __gthread_active = 1;
205 __gthread_active_p (void)
207 static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER;
208 static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT;
210 /* Avoid reading __gthread_active twice on the main code path. */
211 int __gthread_active_latest_value = __gthread_active;
213 /* This test is not protected to avoid taking a lock on the main code
214 path so every update of __gthread_active in a threaded program must
215 be atomic with regard to the result of the test. */
216 if (__builtin_expect (__gthread_active_latest_value < 0, 0))
218 if (__gthrw_(pthread_once))
220 /* If this really is a threaded program, then we must ensure that
221 __gthread_active has been set to 1 before exiting this block. */
222 __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex);
223 __gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger);
224 __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex);
227 /* Make sure we'll never enter this block again. */
228 if (__gthread_active < 0)
229 __gthread_active = 0;
231 __gthread_active_latest_value = __gthread_active;
234 return __gthread_active_latest_value != 0;
237 #else /* neither FreeBSD nor Solaris */
240 __gthread_active_p (void)
242 static void *const __gthread_active_ptr
243 = __extension__ (void *) &__gthrw_(
244 /* Android's C library does not provide pthread_cancel, check for
245 `pthread_create' instead. */
252 return __gthread_active_ptr != 0;
255 #endif /* FreeBSD or Solaris */
257 #else /* not SUPPORTS_WEAK */
259 /* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread
260 calls in shared flavors of the HP-UX C library. Most of the stubs
261 have no functionality. The details are described in the "libc cumulative
262 patch" for each subversion of HP-UX 11. There are two special interfaces
263 provided for checking whether an application is linked to a shared pthread
264 library or not. However, these interfaces aren't available in early
265 libpthread libraries. We also need a test that works for archive
266 libraries. We can't use pthread_once as some libc versions call the
267 init function. We also can't use pthread_create or pthread_attr_init
268 as these create a thread and thereby prevent changing the default stack
269 size. The function pthread_default_stacksize_np is available in both
270 the archive and shared versions of libpthread. It can be used to
271 determine the default pthread stack size. There is a stub in some
272 shared libc versions which returns a zero size if pthreads are not
273 active. We provide an equivalent stub to handle cases where libc
274 doesn't provide one. */
276 #if defined(__hppa__) && defined(__hpux__)
278 static volatile int __gthread_active = -1;
281 __gthread_active_p (void)
283 /* Avoid reading __gthread_active twice on the main code path. */
284 int __gthread_active_latest_value = __gthread_active;
287 if (__builtin_expect (__gthread_active_latest_value < 0, 0))
289 pthread_default_stacksize_np (0, &__s);
290 __gthread_active = __s ? 1 : 0;
291 __gthread_active_latest_value = __gthread_active;
294 return __gthread_active_latest_value != 0;
297 #else /* not hppa-hpux */
300 __gthread_active_p (void)
305 #endif /* hppa-hpux */
307 #endif /* SUPPORTS_WEAK */
311 /* This is the config.h file in libobjc/ */
318 /* Key structure for maintaining thread specific storage */
319 static pthread_key_t _objc_thread_storage;
320 static pthread_attr_t _objc_thread_attribs;
322 /* Thread local storage for a single thread */
323 static void *thread_local_storage = NULL;
325 /* Backend initialization functions */
327 /* Initialize the threads subsystem. */
329 __gthread_objc_init_thread_system (void)
331 if (__gthread_active_p ())
333 /* Initialize the thread storage key. */
334 if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0)
336 /* The normal default detach state for threads is
337 * PTHREAD_CREATE_JOINABLE which causes threads to not die
338 * when you think they should. */
339 if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0
340 && __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs,
341 PTHREAD_CREATE_DETACHED) == 0)
349 /* Close the threads subsystem. */
351 __gthread_objc_close_thread_system (void)
353 if (__gthread_active_p ()
354 && __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0
355 && __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0)
361 /* Backend thread functions */
363 /* Create a new thread of execution. */
364 static inline objc_thread_t
365 __gthread_objc_thread_detach (void (*func)(void *), void *arg)
367 objc_thread_t thread_id;
368 pthread_t new_thread_handle;
370 if (!__gthread_active_p ())
373 if (!(__gthrw_(pthread_create) (&new_thread_handle, NULL, (void *) func, arg)))
374 thread_id = (objc_thread_t) new_thread_handle;
381 /* Set the current thread's priority. */
383 __gthread_objc_thread_set_priority (int priority)
385 if (!__gthread_active_p ())
389 #ifdef _POSIX_PRIORITY_SCHEDULING
390 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
391 pthread_t thread_id = __gthrw_(pthread_self) ();
393 struct sched_param params;
394 int priority_min, priority_max;
396 if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0)
398 if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1)
401 if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1)
404 if (priority > priority_max)
405 priority = priority_max;
406 else if (priority < priority_min)
407 priority = priority_min;
408 params.sched_priority = priority;
411 * The solaris 7 and several other man pages incorrectly state that
412 * this should be a pointer to policy but pthread.h is universally
415 if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0)
418 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
419 #endif /* _POSIX_PRIORITY_SCHEDULING */
424 /* Return the current thread's priority. */
426 __gthread_objc_thread_get_priority (void)
428 #ifdef _POSIX_PRIORITY_SCHEDULING
429 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
430 if (__gthread_active_p ())
433 struct sched_param params;
435 if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0)
436 return params.sched_priority;
441 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
442 #endif /* _POSIX_PRIORITY_SCHEDULING */
443 return OBJC_THREAD_INTERACTIVE_PRIORITY;
446 /* Yield our process time to another thread. */
448 __gthread_objc_thread_yield (void)
450 if (__gthread_active_p ())
451 __gthrw_(sched_yield) ();
454 /* Terminate the current thread. */
456 __gthread_objc_thread_exit (void)
458 if (__gthread_active_p ())
459 /* exit the thread */
460 __gthrw_(pthread_exit) (&__objc_thread_exit_status);
462 /* Failed if we reached here */
466 /* Returns an integer value which uniquely describes a thread. */
467 static inline objc_thread_t
468 __gthread_objc_thread_id (void)
470 if (__gthread_active_p ())
471 return (objc_thread_t) __gthrw_(pthread_self) ();
473 return (objc_thread_t) 1;
476 /* Sets the thread's local storage pointer. */
478 __gthread_objc_thread_set_data (void *value)
480 if (__gthread_active_p ())
481 return __gthrw_(pthread_setspecific) (_objc_thread_storage, value);
484 thread_local_storage = value;
489 /* Returns the thread's local storage pointer. */
491 __gthread_objc_thread_get_data (void)
493 if (__gthread_active_p ())
494 return __gthrw_(pthread_getspecific) (_objc_thread_storage);
496 return thread_local_storage;
499 /* Backend mutex functions */
501 /* Allocate a mutex. */
503 __gthread_objc_mutex_allocate (objc_mutex_t mutex)
505 if (__gthread_active_p ())
507 mutex->backend = objc_malloc (sizeof (pthread_mutex_t));
509 if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL))
511 objc_free (mutex->backend);
512 mutex->backend = NULL;
520 /* Deallocate a mutex. */
522 __gthread_objc_mutex_deallocate (objc_mutex_t mutex)
524 if (__gthread_active_p ())
529 * Posix Threads specifically require that the thread be unlocked
530 * for __gthrw_(pthread_mutex_destroy) to work.
535 count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend);
541 if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend))
544 objc_free (mutex->backend);
545 mutex->backend = NULL;
550 /* Grab a lock on a mutex. */
552 __gthread_objc_mutex_lock (objc_mutex_t mutex)
554 if (__gthread_active_p ()
555 && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0)
563 /* Try to grab a lock on a mutex. */
565 __gthread_objc_mutex_trylock (objc_mutex_t mutex)
567 if (__gthread_active_p ()
568 && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0)
576 /* Unlock the mutex */
578 __gthread_objc_mutex_unlock (objc_mutex_t mutex)
580 if (__gthread_active_p ()
581 && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0)
589 /* Backend condition mutex functions */
591 /* Allocate a condition. */
593 __gthread_objc_condition_allocate (objc_condition_t condition)
595 if (__gthread_active_p ())
597 condition->backend = objc_malloc (sizeof (pthread_cond_t));
599 if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL))
601 objc_free (condition->backend);
602 condition->backend = NULL;
610 /* Deallocate a condition. */
612 __gthread_objc_condition_deallocate (objc_condition_t condition)
614 if (__gthread_active_p ())
616 if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend))
619 objc_free (condition->backend);
620 condition->backend = NULL;
625 /* Wait on the condition */
627 __gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
629 if (__gthread_active_p ())
630 return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend,
631 (pthread_mutex_t *) mutex->backend);
636 /* Wake up all threads waiting on this condition. */
638 __gthread_objc_condition_broadcast (objc_condition_t condition)
640 if (__gthread_active_p ())
641 return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend);
646 /* Wake up one thread waiting on this condition. */
648 __gthread_objc_condition_signal (objc_condition_t condition)
650 if (__gthread_active_p ())
651 return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend);
659 __gthread_create (__gthread_t *__threadid, void *(*__func) (void*),
662 return __gthrw_(pthread_create) (__threadid, NULL, __func, __args);
666 __gthread_join (__gthread_t __threadid, void **__value_ptr)
668 return __gthrw_(pthread_join) (__threadid, __value_ptr);
672 __gthread_detach (__gthread_t __threadid)
674 return __gthrw_(pthread_detach) (__threadid);
678 __gthread_equal (__gthread_t __t1, __gthread_t __t2)
680 return __gthrw_(pthread_equal) (__t1, __t2);
683 static inline __gthread_t
684 __gthread_self (void)
686 return __gthrw_(pthread_self) ();
690 __gthread_yield (void)
692 return __gthrw_(sched_yield) ();
696 __gthread_once (__gthread_once_t *__once, void (*__func) (void))
698 if (__gthread_active_p ())
699 return __gthrw_(pthread_once) (__once, __func);
705 __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
707 return __gthrw_(pthread_key_create) (__key, __dtor);
711 __gthread_key_delete (__gthread_key_t __key)
713 return __gthrw_(pthread_key_delete) (__key);
717 __gthread_getspecific (__gthread_key_t __key)
719 return __gthrw_(pthread_getspecific) (__key);
723 __gthread_setspecific (__gthread_key_t __key, const void *__ptr)
725 return __gthrw_(pthread_setspecific) (__key, __ptr);
729 __gthread_mutex_destroy (__gthread_mutex_t *__mutex)
731 if (__gthread_active_p ())
732 return __gthrw_(pthread_mutex_destroy) (__mutex);
738 __gthread_mutex_lock (__gthread_mutex_t *__mutex)
740 if (__gthread_active_p ())
741 return __gthrw_(pthread_mutex_lock) (__mutex);
747 __gthread_mutex_trylock (__gthread_mutex_t *__mutex)
749 if (__gthread_active_p ())
750 return __gthrw_(pthread_mutex_trylock) (__mutex);
755 #ifdef _POSIX_TIMEOUTS
756 #if _POSIX_TIMEOUTS >= 0
758 __gthread_mutex_timedlock (__gthread_mutex_t *__mutex,
759 const __gthread_time_t *__abs_timeout)
761 if (__gthread_active_p ())
762 return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout);
770 __gthread_mutex_unlock (__gthread_mutex_t *__mutex)
772 if (__gthread_active_p ())
773 return __gthrw_(pthread_mutex_unlock) (__mutex);
778 #ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
780 __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
782 if (__gthread_active_p ())
784 pthread_mutexattr_t __attr;
787 __r = __gthrw_(pthread_mutexattr_init) (&__attr);
789 __r = __gthrw_(pthread_mutexattr_settype) (&__attr,
790 PTHREAD_MUTEX_RECURSIVE);
792 __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr);
794 __r = __gthrw_(pthread_mutexattr_destroy) (&__attr);
802 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
804 return __gthread_mutex_lock (__mutex);
808 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
810 return __gthread_mutex_trylock (__mutex);
813 #ifdef _POSIX_TIMEOUTS
814 #if _POSIX_TIMEOUTS >= 0
816 __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex,
817 const __gthread_time_t *__abs_timeout)
819 return __gthread_mutex_timedlock (__mutex, __abs_timeout);
825 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
827 return __gthread_mutex_unlock (__mutex);
831 __gthread_cond_broadcast (__gthread_cond_t *__cond)
833 return __gthrw_(pthread_cond_broadcast) (__cond);
837 __gthread_cond_signal (__gthread_cond_t *__cond)
839 return __gthrw_(pthread_cond_signal) (__cond);
843 __gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex)
845 return __gthrw_(pthread_cond_wait) (__cond, __mutex);
849 __gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
850 const __gthread_time_t *__abs_timeout)
852 return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout);
856 __gthread_cond_wait_recursive (__gthread_cond_t *__cond,
857 __gthread_recursive_mutex_t *__mutex)
859 return __gthread_cond_wait (__cond, __mutex);
863 __gthread_cond_timedwait_recursive (__gthread_cond_t *__cond,
864 __gthread_recursive_mutex_t *__mutex,
865 const __gthread_time_t *__abs_timeout)
867 return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout);
871 __gthread_cond_destroy (__gthread_cond_t* __cond)
873 return __gthrw_(pthread_cond_destroy) (__cond);
876 #endif /* _LIBOBJC */
878 #endif /* ! GCC_GTHR_POSIX_H */