Daily bump.
[official-gcc.git] / gcc / gthr-posix.h
blobecb06e2f4cb37a2322b7803811eed871c110374f
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, 2010 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
11 version.
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
16 for more details.
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. */
33 #define __GTHREADS 1
34 #define __GTHREADS_CXX0X 1
36 /* Some implementations of <pthread.h> require this to be defined. */
37 #if !defined(_REENTRANT) && defined(__osf__)
38 #define _REENTRANT 1
39 #endif
41 #include <pthread.h>
42 #include <unistd.h>
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
62 #else
63 #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
64 #endif
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)
71 # endif
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
76 #else
77 # define __gthrw2(name,name2,type)
78 # define __gthrw_(name) name
79 #endif
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
86 names. */
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)
99 __gthrw3(sched_yield)
101 __gthrw3(pthread_mutex_lock)
102 __gthrw3(pthread_mutex_trylock)
103 #ifdef _POSIX_TIMEOUTS
104 #if _POSIX_TIMEOUTS >= 0
105 __gthrw3(pthread_mutex_timedlock)
106 #endif
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)
117 #else
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)
127 #ifndef __BIONIC__
128 __gthrw(pthread_cancel)
129 #endif
130 __gthrw(sched_yield)
132 __gthrw(pthread_mutex_lock)
133 __gthrw(pthread_mutex_trylock)
134 #ifdef _POSIX_TIMEOUTS
135 #if _POSIX_TIMEOUTS >= 0
136 __gthrw(pthread_mutex_timedlock)
137 #endif
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)
148 #endif
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)
158 /* Objective-C. */
159 #if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
160 __gthrw3(pthread_cond_init)
161 __gthrw3(pthread_exit)
162 #else
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;
198 static void
199 __gthread_trigger (void)
201 __gthread_active = 1;
204 static inline int
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 */
239 static inline int
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. */
246 #ifndef __BIONIC__
247 pthread_cancel
248 #else
249 pthread_create
250 #endif
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;
280 static inline int
281 __gthread_active_p (void)
283 /* Avoid reading __gthread_active twice on the main code path. */
284 int __gthread_active_latest_value = __gthread_active;
285 size_t __s;
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 */
299 static inline int
300 __gthread_active_p (void)
302 return 1;
305 #endif /* hppa-hpux */
307 #endif /* SUPPORTS_WEAK */
309 #ifdef _LIBOBJC
311 /* This is the config.h file in libobjc/ */
312 #include <config.h>
314 #ifdef HAVE_SCHED_H
315 # include <sched.h>
316 #endif
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. */
328 static inline int
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)
342 return 0;
346 return -1;
349 /* Close the threads subsystem. */
350 static inline int
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)
356 return 0;
358 return -1;
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 ())
371 return NULL;
373 if (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs,
374 (void *) func, arg)))
375 thread_id = (objc_thread_t) new_thread_handle;
376 else
377 thread_id = NULL;
379 return thread_id;
382 /* Set the current thread's priority. */
383 static inline int
384 __gthread_objc_thread_set_priority (int priority)
386 if (!__gthread_active_p ())
387 return -1;
388 else
390 #ifdef _POSIX_PRIORITY_SCHEDULING
391 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
392 pthread_t thread_id = __gthrw_(pthread_self) ();
393 int policy;
394 struct sched_param params;
395 int priority_min, priority_max;
397 if (__gthrw_(pthread_getschedparam) (thread_id, &policy, &params) == 0)
399 if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1)
400 return -1;
402 if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1)
403 return -1;
405 if (priority > priority_max)
406 priority = priority_max;
407 else if (priority < priority_min)
408 priority = priority_min;
409 params.sched_priority = priority;
412 * The solaris 7 and several other man pages incorrectly state that
413 * this should be a pointer to policy but pthread.h is universally
414 * at odds with this.
416 if (__gthrw_(pthread_setschedparam) (thread_id, policy, &params) == 0)
417 return 0;
419 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
420 #endif /* _POSIX_PRIORITY_SCHEDULING */
421 return -1;
425 /* Return the current thread's priority. */
426 static inline int
427 __gthread_objc_thread_get_priority (void)
429 #ifdef _POSIX_PRIORITY_SCHEDULING
430 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
431 if (__gthread_active_p ())
433 int policy;
434 struct sched_param params;
436 if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, &params) == 0)
437 return params.sched_priority;
438 else
439 return -1;
441 else
442 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
443 #endif /* _POSIX_PRIORITY_SCHEDULING */
444 return OBJC_THREAD_INTERACTIVE_PRIORITY;
447 /* Yield our process time to another thread. */
448 static inline void
449 __gthread_objc_thread_yield (void)
451 if (__gthread_active_p ())
452 __gthrw_(sched_yield) ();
455 /* Terminate the current thread. */
456 static inline int
457 __gthread_objc_thread_exit (void)
459 if (__gthread_active_p ())
460 /* exit the thread */
461 __gthrw_(pthread_exit) (&__objc_thread_exit_status);
463 /* Failed if we reached here */
464 return -1;
467 /* Returns an integer value which uniquely describes a thread. */
468 static inline objc_thread_t
469 __gthread_objc_thread_id (void)
471 if (__gthread_active_p ())
472 return (objc_thread_t) __gthrw_(pthread_self) ();
473 else
474 return (objc_thread_t) 1;
477 /* Sets the thread's local storage pointer. */
478 static inline int
479 __gthread_objc_thread_set_data (void *value)
481 if (__gthread_active_p ())
482 return __gthrw_(pthread_setspecific) (_objc_thread_storage, value);
483 else
485 thread_local_storage = value;
486 return 0;
490 /* Returns the thread's local storage pointer. */
491 static inline void *
492 __gthread_objc_thread_get_data (void)
494 if (__gthread_active_p ())
495 return __gthrw_(pthread_getspecific) (_objc_thread_storage);
496 else
497 return thread_local_storage;
500 /* Backend mutex functions */
502 /* Allocate a mutex. */
503 static inline int
504 __gthread_objc_mutex_allocate (objc_mutex_t mutex)
506 if (__gthread_active_p ())
508 mutex->backend = objc_malloc (sizeof (pthread_mutex_t));
510 if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL))
512 objc_free (mutex->backend);
513 mutex->backend = NULL;
514 return -1;
518 return 0;
521 /* Deallocate a mutex. */
522 static inline int
523 __gthread_objc_mutex_deallocate (objc_mutex_t mutex)
525 if (__gthread_active_p ())
527 int count;
530 * Posix Threads specifically require that the thread be unlocked
531 * for __gthrw_(pthread_mutex_destroy) to work.
536 count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend);
537 if (count < 0)
538 return -1;
540 while (count);
542 if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend))
543 return -1;
545 objc_free (mutex->backend);
546 mutex->backend = NULL;
548 return 0;
551 /* Grab a lock on a mutex. */
552 static inline int
553 __gthread_objc_mutex_lock (objc_mutex_t mutex)
555 if (__gthread_active_p ()
556 && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0)
558 return -1;
561 return 0;
564 /* Try to grab a lock on a mutex. */
565 static inline int
566 __gthread_objc_mutex_trylock (objc_mutex_t mutex)
568 if (__gthread_active_p ()
569 && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0)
571 return -1;
574 return 0;
577 /* Unlock the mutex */
578 static inline int
579 __gthread_objc_mutex_unlock (objc_mutex_t mutex)
581 if (__gthread_active_p ()
582 && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0)
584 return -1;
587 return 0;
590 /* Backend condition mutex functions */
592 /* Allocate a condition. */
593 static inline int
594 __gthread_objc_condition_allocate (objc_condition_t condition)
596 if (__gthread_active_p ())
598 condition->backend = objc_malloc (sizeof (pthread_cond_t));
600 if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL))
602 objc_free (condition->backend);
603 condition->backend = NULL;
604 return -1;
608 return 0;
611 /* Deallocate a condition. */
612 static inline int
613 __gthread_objc_condition_deallocate (objc_condition_t condition)
615 if (__gthread_active_p ())
617 if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend))
618 return -1;
620 objc_free (condition->backend);
621 condition->backend = NULL;
623 return 0;
626 /* Wait on the condition */
627 static inline int
628 __gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
630 if (__gthread_active_p ())
631 return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend,
632 (pthread_mutex_t *) mutex->backend);
633 else
634 return 0;
637 /* Wake up all threads waiting on this condition. */
638 static inline int
639 __gthread_objc_condition_broadcast (objc_condition_t condition)
641 if (__gthread_active_p ())
642 return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend);
643 else
644 return 0;
647 /* Wake up one thread waiting on this condition. */
648 static inline int
649 __gthread_objc_condition_signal (objc_condition_t condition)
651 if (__gthread_active_p ())
652 return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend);
653 else
654 return 0;
657 #else /* _LIBOBJC */
659 static inline int
660 __gthread_create (__gthread_t *__threadid, void *(*__func) (void*),
661 void *__args)
663 return __gthrw_(pthread_create) (__threadid, NULL, __func, __args);
666 static inline int
667 __gthread_join (__gthread_t __threadid, void **__value_ptr)
669 return __gthrw_(pthread_join) (__threadid, __value_ptr);
672 static inline int
673 __gthread_detach (__gthread_t __threadid)
675 return __gthrw_(pthread_detach) (__threadid);
678 static inline int
679 __gthread_equal (__gthread_t __t1, __gthread_t __t2)
681 return __gthrw_(pthread_equal) (__t1, __t2);
684 static inline __gthread_t
685 __gthread_self (void)
687 return __gthrw_(pthread_self) ();
690 static inline int
691 __gthread_yield (void)
693 return __gthrw_(sched_yield) ();
696 static inline int
697 __gthread_once (__gthread_once_t *__once, void (*__func) (void))
699 if (__gthread_active_p ())
700 return __gthrw_(pthread_once) (__once, __func);
701 else
702 return -1;
705 static inline int
706 __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
708 return __gthrw_(pthread_key_create) (__key, __dtor);
711 static inline int
712 __gthread_key_delete (__gthread_key_t __key)
714 return __gthrw_(pthread_key_delete) (__key);
717 static inline void *
718 __gthread_getspecific (__gthread_key_t __key)
720 return __gthrw_(pthread_getspecific) (__key);
723 static inline int
724 __gthread_setspecific (__gthread_key_t __key, const void *__ptr)
726 return __gthrw_(pthread_setspecific) (__key, __ptr);
729 static inline int
730 __gthread_mutex_destroy (__gthread_mutex_t *__mutex)
732 if (__gthread_active_p ())
733 return __gthrw_(pthread_mutex_destroy) (__mutex);
734 else
735 return 0;
738 static inline int
739 __gthread_mutex_lock (__gthread_mutex_t *__mutex)
741 if (__gthread_active_p ())
742 return __gthrw_(pthread_mutex_lock) (__mutex);
743 else
744 return 0;
747 static inline int
748 __gthread_mutex_trylock (__gthread_mutex_t *__mutex)
750 if (__gthread_active_p ())
751 return __gthrw_(pthread_mutex_trylock) (__mutex);
752 else
753 return 0;
756 #ifdef _POSIX_TIMEOUTS
757 #if _POSIX_TIMEOUTS >= 0
758 static inline int
759 __gthread_mutex_timedlock (__gthread_mutex_t *__mutex,
760 const __gthread_time_t *__abs_timeout)
762 if (__gthread_active_p ())
763 return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout);
764 else
765 return 0;
767 #endif
768 #endif
770 static inline int
771 __gthread_mutex_unlock (__gthread_mutex_t *__mutex)
773 if (__gthread_active_p ())
774 return __gthrw_(pthread_mutex_unlock) (__mutex);
775 else
776 return 0;
779 #ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
780 static inline int
781 __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
783 if (__gthread_active_p ())
785 pthread_mutexattr_t __attr;
786 int __r;
788 __r = __gthrw_(pthread_mutexattr_init) (&__attr);
789 if (!__r)
790 __r = __gthrw_(pthread_mutexattr_settype) (&__attr,
791 PTHREAD_MUTEX_RECURSIVE);
792 if (!__r)
793 __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr);
794 if (!__r)
795 __r = __gthrw_(pthread_mutexattr_destroy) (&__attr);
796 return __r;
798 return 0;
800 #endif
802 static inline int
803 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
805 return __gthread_mutex_lock (__mutex);
808 static inline int
809 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
811 return __gthread_mutex_trylock (__mutex);
814 #ifdef _POSIX_TIMEOUTS
815 #if _POSIX_TIMEOUTS >= 0
816 static inline int
817 __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex,
818 const __gthread_time_t *__abs_timeout)
820 return __gthread_mutex_timedlock (__mutex, __abs_timeout);
822 #endif
823 #endif
825 static inline int
826 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
828 return __gthread_mutex_unlock (__mutex);
831 static inline int
832 __gthread_cond_broadcast (__gthread_cond_t *__cond)
834 return __gthrw_(pthread_cond_broadcast) (__cond);
837 static inline int
838 __gthread_cond_signal (__gthread_cond_t *__cond)
840 return __gthrw_(pthread_cond_signal) (__cond);
843 static inline int
844 __gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex)
846 return __gthrw_(pthread_cond_wait) (__cond, __mutex);
849 static inline int
850 __gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
851 const __gthread_time_t *__abs_timeout)
853 return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout);
856 static inline int
857 __gthread_cond_wait_recursive (__gthread_cond_t *__cond,
858 __gthread_recursive_mutex_t *__mutex)
860 return __gthread_cond_wait (__cond, __mutex);
863 static inline int
864 __gthread_cond_timedwait_recursive (__gthread_cond_t *__cond,
865 __gthread_recursive_mutex_t *__mutex,
866 const __gthread_time_t *__abs_timeout)
868 return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout);
871 static inline int
872 __gthread_cond_destroy (__gthread_cond_t* __cond)
874 return __gthrw_(pthread_cond_destroy) (__cond);
877 #endif /* _LIBOBJC */
879 #endif /* ! GCC_GTHR_POSIX_H */