1 /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
19
20 #ifndef _PTHREAD_H
21 #define _PTHREAD_H 1
22
23 #include <features.h>
24 #include <endian.h>
25 #include <sched.h>
26 #include <time.h>
27
28 #include <bits/pthreadtypes.h>
29 #include <bits/setjmp.h>
30 #include <bits/wordsize.h>
31
32
33 /* Detach state. */
34 enum
35 {
36 PTHREAD_CREATE_JOINABLE,
37 #define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE
38 PTHREAD_CREATE_DETACHED
39 #define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED
40 };
41
42
43 /* Mutex types. */
44 enum
45 {
46 PTHREAD_MUTEX_TIMED_NP,
47 PTHREAD_MUTEX_RECURSIVE_NP,
48 PTHREAD_MUTEX_ERRORCHECK_NP,
49 PTHREAD_MUTEX_ADAPTIVE_NP
50 #if defined __USE_UNIX98 || defined __USE_XOPEN2K8
51 ,
52 PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP,
53 PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
54 PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
55 PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
56 #endif
57 #ifdef __USE_GNU
58 /* For compatibility. */
59 , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP
60 #endif
61 };
62
63
64 #ifdef __USE_XOPEN2K
65 /* Robust mutex or not flags. */
66 enum
67 {
68 PTHREAD_MUTEX_STALLED,
69 PTHREAD_MUTEX_STALLED_NP = PTHREAD_MUTEX_STALLED,
70 PTHREAD_MUTEX_ROBUST,
71 PTHREAD_MUTEX_ROBUST_NP = PTHREAD_MUTEX_ROBUST
72 };
73 #endif
74
75
76 #ifdef __USE_UNIX98
77 /* Mutex protocols. */
78 enum
79 {
80 PTHREAD_PRIO_NONE,
81 PTHREAD_PRIO_INHERIT,
82 PTHREAD_PRIO_PROTECT
83 };
84 #endif
85
86
87 /* Mutex initializers. */
88 #if __WORDSIZE == 64
89 # define PTHREAD_MUTEX_INITIALIZER \
90 { { 0, 0, 0, 0, 0, 0, { 0, 0 } } }
91 # ifdef __USE_GNU
92 # define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
93 { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0, 0 } } }
94 # define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
95 { { 0, 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0, 0 } } }
96 # define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
97 { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0, 0 } } }
98 # endif
99 #else
100 # define PTHREAD_MUTEX_INITIALIZER \
101 { { 0, 0, 0, 0, 0, { 0 } } }
102 # ifdef __USE_GNU
103 # define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
104 { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0 } } }
105 # define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
106 { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0 } } }
107 # define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
108 { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0 } } }
109 # endif
110 #endif
111
112
113 /* Read-write lock types. */
114 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
115 enum
116 {
117 PTHREAD_RWLOCK_PREFER_READER_NP,
118 PTHREAD_RWLOCK_PREFER_WRITER_NP,
119 PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
120 PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP
121 };
122
123 /* Read-write lock initializers. */
124 # define PTHREAD_RWLOCK_INITIALIZER \
125 { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }
126 # ifdef __USE_GNU
127 # if __WORDSIZE == 64
128 # define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
129 { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
130 PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP } }
131 # else
132 # if __BYTE_ORDER == __LITTLE_ENDIAN
133 # define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
134 { { 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, \
135 0, 0, 0, 0 } }
136 # else
137 # define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
138 { { 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\
139 0 } }
140 # endif
141 # endif
142 # endif
143 #endif /* Unix98 or XOpen2K */
144
145
146 /* Scheduler inheritance. */
147 enum
148 {
149 PTHREAD_INHERIT_SCHED,
150 #define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED
151 PTHREAD_EXPLICIT_SCHED
152 #define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED
153 };
154
155
156 /* Scope handling. */
157 enum
158 {
159 PTHREAD_SCOPE_SYSTEM,
160 #define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM
161 PTHREAD_SCOPE_PROCESS
162 #define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS
163 };
164
165
166 /* Process shared or private flag. */
167 enum
168 {
169 PTHREAD_PROCESS_PRIVATE,
170 #define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE
171 PTHREAD_PROCESS_SHARED
172 #define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED
173 };
174
175
176
177 /* Conditional variable handling. */
178 #define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } }
179
180
181 /* Cleanup buffers */
182 struct _pthread_cleanup_buffer
183 {
184 void (*__routine) (void *); /* Function to call. */
185 void *__arg; /* Its argument. */
186 int __canceltype; /* Saved cancellation type. */
187 struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */
188 };
189
190 /* Cancellation */
191 enum
192 {
193 PTHREAD_CANCEL_ENABLE,
194 #define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE
195 PTHREAD_CANCEL_DISABLE
196 #define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE
197 };
198 enum
199 {
200 PTHREAD_CANCEL_DEFERRED,
201 #define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED
202 PTHREAD_CANCEL_ASYNCHRONOUS
203 #define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS
204 };
205 #define PTHREAD_CANCELED ((void *) -1)
206
207
208 /* Single execution handling. */
209 #define PTHREAD_ONCE_INIT 0
210
211
212 #ifdef __USE_XOPEN2K
213 /* Value returned by 'pthread_barrier_wait' for one of the threads after
214 the required number of threads have called this function.
215 -1 is distinct from 0 and all errno constants */
216 # define PTHREAD_BARRIER_SERIAL_THREAD -1
217 #endif
218
219
220 __BEGIN_DECLS
221
222 /* Create a new thread, starting with execution of START-ROUTINE
223 getting passed ARG. Creation attributed come from ATTR. The new
224 handle is stored in *NEWTHREAD. */
225 extern int pthread_create (pthread_t *__restrict __newthread,
226 __const pthread_attr_t *__restrict __attr,
227 void *(*__start_routine) (void *),
228 void *__restrict __arg) __THROW __nonnull ((1, 3));
229
230 /* Terminate calling thread.
231
232 The registered cleanup handlers are called via exception handling
233 so we cannot mark this function with __THROW.*/
234 extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__));
235
236 /* Make calling thread wait for termination of the thread TH. The
237 exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN
238 is not NULL.
239
240 This function is a cancellation point and therefore not marked with
241 __THROW. */
242 extern int pthread_join (pthread_t __th, void **__thread_return);
243
244 #ifdef __USE_GNU
245 /* Check whether thread TH has terminated. If yes return the status of
246 the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL. */
247 extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW;
248
249 /* Make calling thread wait for termination of the thread TH, but only
250 until TIMEOUT. The exit status of the thread is stored in
251 *THREAD_RETURN, if THREAD_RETURN is not NULL.
252
253 This function is a cancellation point and therefore not marked with
254 __THROW. */
255 extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return,
256 __const struct timespec *__abstime);
257 #endif
258
259 /* Indicate that the thread TH is never to be joined with PTHREAD_JOIN.
260 The resources of TH will therefore be freed immediately when it
261 terminates, instead of waiting for another thread to perform PTHREAD_JOIN
262 on it. */
263 extern int pthread_detach (pthread_t __th) __THROW;
264
265
266 /* Obtain the identifier of the current thread. */
267 extern pthread_t pthread_self (void) __THROW __attribute__ ((__const__));
268
269 /* Compare two thread identifiers. */
270 extern int pthread_equal (pthread_t __thread1, pthread_t __thread2) __THROW;
271
272
273 /* Thread attribute handling. */
274
275 /* Initialize thread attribute *ATTR with default attributes
276 (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER,
277 no user-provided stack). */
278 extern int pthread_attr_init (pthread_attr_t *__attr) __THROW __nonnull ((1));
279
280 /* Destroy thread attribute *ATTR. */
281 extern int pthread_attr_destroy (pthread_attr_t *__attr)
282 __THROW __nonnull ((1));
283
284 /* Get detach state attribute. */
285 extern int pthread_attr_getdetachstate (__const pthread_attr_t *__attr,
286 int *__detachstate)
287 __THROW __nonnull ((1, 2));
288
289 /* Set detach state attribute. */
290 extern int pthread_attr_setdetachstate (pthread_attr_t *__attr,
291 int __detachstate)
292 __THROW __nonnull ((1));
293
294
295 /* Get the size of the guard area created for stack overflow protection. */
296 extern int pthread_attr_getguardsize (__const pthread_attr_t *__attr,
297 size_t *__guardsize)
298 __THROW __nonnull ((1, 2));
299
300 /* Set the size of the guard area created for stack overflow protection. */
301 extern int pthread_attr_setguardsize (pthread_attr_t *__attr,
302 size_t __guardsize)
303 __THROW __nonnull ((1));
304
305
306 /* Return in *PARAM the scheduling parameters of *ATTR. */
307 extern int pthread_attr_getschedparam (__const pthread_attr_t *__restrict
308 __attr,
309 struct sched_param *__restrict __param)
310 __THROW __nonnull ((1, 2));
311
312 /* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */
313 extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr,
314 __const struct sched_param *__restrict
315 __param) __THROW __nonnull ((1, 2));
316
317 /* Return in *POLICY the scheduling policy of *ATTR. */
318 extern int pthread_attr_getschedpolicy (__const pthread_attr_t *__restrict
319 __attr, int *__restrict __policy)
320 __THROW __nonnull ((1, 2));
321
322 /* Set scheduling policy in *ATTR according to POLICY. */
323 extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy)
324 __THROW __nonnull ((1));
325
326 /* Return in *INHERIT the scheduling inheritance mode of *ATTR. */
327 extern int pthread_attr_getinheritsched (__const pthread_attr_t *__restrict
328 __attr, int *__restrict __inherit)
329 __THROW __nonnull ((1, 2));
330
331 /* Set scheduling inheritance mode in *ATTR according to INHERIT. */
332 extern int pthread_attr_setinheritsched (pthread_attr_t *__attr,
333 int __inherit)
334 __THROW __nonnull ((1));
335
336
337 /* Return in *SCOPE the scheduling contention scope of *ATTR. */
338 extern int pthread_attr_getscope (__const pthread_attr_t *__restrict __attr,
339 int *__restrict __scope)
340 __THROW __nonnull ((1, 2));
341
342 /* Set scheduling contention scope in *ATTR according to SCOPE. */
343 extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope)
344 __THROW __nonnull ((1));
345
346 /* Return the previously set address for the stack. */
347 extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict
348 __attr, void **__restrict __stackaddr)
349 __THROW __nonnull ((1, 2)) __attribute_deprecated__;
350
351 /* Set the starting address of the stack of the thread to be created.
352 Depending on whether the stack grows up or down the value must either
353 be higher or lower than all the address in the memory block. The
354 minimal size of the block must be PTHREAD_STACK_MIN. */
355 extern int pthread_attr_setstackaddr (pthread_attr_t *__attr,
356 void *__stackaddr)
357 __THROW __nonnull ((1)) __attribute_deprecated__;
358
359 /* Return the currently used minimal stack size. */
360 extern int pthread_attr_getstacksize (__const pthread_attr_t *__restrict
361 __attr, size_t *__restrict __stacksize)
362 __THROW __nonnull ((1, 2));
363
364 /* Add information about the minimum stack size needed for the thread
365 to be started. This size must never be less than PTHREAD_STACK_MIN
366 and must also not exceed the system limits. */
367 extern int pthread_attr_setstacksize (pthread_attr_t *__attr,
368 size_t __stacksize)
369 __THROW __nonnull ((1));
370
371 #ifdef __USE_XOPEN2K
372 /* Return the previously set address for the stack. */
373 extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr,
374 void **__restrict __stackaddr,
375 size_t *__restrict __stacksize)
376 __THROW __nonnull ((1, 2, 3));
377
378 /* The following two interfaces are intended to replace the last two. They
379 require setting the address as well as the size since only setting the
380 address will make the implementation on some architectures impossible. */
381 extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
382 size_t __stacksize) __THROW __nonnull ((1));
383 #endif
384
385 #ifdef __USE_GNU
386 /* Thread created with attribute ATTR will be limited to run only on
387 the processors represented in CPUSET. */
388 extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr,
389 size_t __cpusetsize,
390 __const cpu_set_t *__cpuset)
391 __THROW __nonnull ((1, 3));
392
393 /* Get bit set in CPUSET representing the processors threads created with
394 ATTR can run on. */
395 extern int pthread_attr_getaffinity_np (__const pthread_attr_t *__attr,
396 size_t __cpusetsize,
397 cpu_set_t *__cpuset)
398 __THROW __nonnull ((1, 3));
399
400
401 /* Initialize thread attribute *ATTR with attributes corresponding to the
402 already running thread TH. It shall be called on uninitialized ATTR
403 and destroyed with pthread_attr_destroy when no longer needed. */
404 extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr)
405 __THROW __nonnull ((2));
406 #endif
407
408
409 /* Functions for scheduling control. */
410
411 /* Set the scheduling parameters for TARGET_THREAD according to POLICY
412 and *PARAM. */
413 extern int pthread_setschedparam (pthread_t __target_thread, int __policy,
414 __const struct sched_param *__param)
415 __THROW __nonnull ((3));
416
417 /* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */
418 extern int pthread_getschedparam (pthread_t __target_thread,
419 int *__restrict __policy,
420 struct sched_param *__restrict __param)
421 __THROW __nonnull ((2, 3));
422
423 /* Set the scheduling priority for TARGET_THREAD. */
424 extern int pthread_setschedprio (pthread_t __target_thread, int __prio)
425 __THROW;
426
427
428 #ifdef __USE_GNU
429 /* Get thread name visible in the kernel and its interfaces. */
430 extern int pthread_getname_np (pthread_t __target_thread, char *__buf,
431 size_t __buflen)
432 __THROW __nonnull ((2));
433
434 /* Set thread name visible in the kernel and its interfaces. */
435 extern int pthread_setname_np (pthread_t __target_thread, __const char *__name)
436 __THROW __nonnull ((2));
437 #endif
438
439
440 #ifdef __USE_UNIX98
441 /* Determine level of concurrency. */
442 extern int pthread_getconcurrency (void) __THROW;
443
444 /* Set new concurrency level to LEVEL. */
445 extern int pthread_setconcurrency (int __level) __THROW;
446 #endif
447
448 #ifdef __USE_GNU
449 /* Yield the processor to another thread or process.
450 This function is similar to the POSIX `sched_yield' function but
451 might be differently implemented in the case of a m-on-n thread
452 implementation. */
453 extern int pthread_yield (void) __THROW;
454
455
456 /* Limit specified thread TH to run only on the processors represented
457 in CPUSET. */
458 extern int pthread_setaffinity_np (pthread_t __th, size_t __cpusetsize,
459 __const cpu_set_t *__cpuset)
460 __THROW __nonnull ((3));
461
462 /* Get bit set in CPUSET representing the processors TH can run on. */
463 extern int pthread_getaffinity_np (pthread_t __th, size_t __cpusetsize,
464 cpu_set_t *__cpuset)
465 __THROW __nonnull ((3));
466 #endif
467
468
469 /* Functions for handling initialization. */
470
471 /* Guarantee that the initialization function INIT_ROUTINE will be called
472 only once, even if pthread_once is executed several times with the
473 same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or
474 extern variable initialized to PTHREAD_ONCE_INIT.
475
476 The initialization functions might throw exception which is why
477 this function is not marked with __THROW. */
478 extern int pthread_once (pthread_once_t *__once_control,
479 void (*__init_routine) (void)) __nonnull ((1, 2));
480
481
482 /* Functions for handling cancellation.
483
484 Note that these functions are explicitly not marked to not throw an
485 exception in C++ code. If cancellation is implemented by unwinding
486 this is necessary to have the compiler generate the unwind information. */
487
488 /* Set cancelability state of current thread to STATE, returning old
489 state in *OLDSTATE if OLDSTATE is not NULL. */
490 extern int pthread_setcancelstate (int __state, int *__oldstate);
491
492 /* Set cancellation state of current thread to TYPE, returning the old
493 type in *OLDTYPE if OLDTYPE is not NULL. */
494 extern int pthread_setcanceltype (int __type, int *__oldtype);
495
496 /* Cancel THREAD immediately or at the next possibility. */
497 extern int pthread_cancel (pthread_t __th);
498
499 /* Test for pending cancellation for the current thread and terminate
500 the thread as per pthread_exit(PTHREAD_CANCELED) if it has been
501 cancelled. */
502 extern void pthread_testcancel (void);
503
504
505 /* Cancellation handling with integration into exception handling. */
506
507 typedef struct
508 {
509 struct
510 {
511 __jmp_buf __cancel_jmp_buf;
512 int __mask_was_saved;
513 } __cancel_jmp_buf[1];
514 void *__pad[4];
515 } __pthread_unwind_buf_t __attribute__ ((__aligned__));
516
517 /* No special attributes by default. */
518 #ifndef __cleanup_fct_attribute
519 # define __cleanup_fct_attribute
520 #endif
521
522
523 /* Structure to hold the cleanup handler information. */
524 struct __pthread_cleanup_frame
525 {
526 void (*__cancel_routine) (void *);
527 void *__cancel_arg;
528 int __do_it;
529 int __cancel_type;
530 };
531
532 #if defined __GNUC__ && defined __EXCEPTIONS
533 # ifdef __cplusplus
534 /* Class to handle cancellation handler invocation. */
535 class __pthread_cleanup_class
536 {
537 void (*__cancel_routine) (void *);
538 void *__cancel_arg;
539 int __do_it;
540 int __cancel_type;
541
542 public:
543 __pthread_cleanup_class (void (*__fct) (void *), void *__arg)
544 : __cancel_routine (__fct), __cancel_arg (__arg), __do_it (1) { }
545 ~__pthread_cleanup_class () { if (__do_it) __cancel_routine (__cancel_arg); }
546 void __setdoit (int __newval) { __do_it = __newval; }
547 void __defer () { pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED,
548 &__cancel_type); }
549 void __restore () const { pthread_setcanceltype (__cancel_type, 0); }
550 };
551
552 /* Install a cleanup handler: ROUTINE will be called with arguments ARG
553 when the thread is canceled or calls pthread_exit. ROUTINE will also
554 be called with arguments ARG when the matching pthread_cleanup_pop
555 is executed with non-zero EXECUTE argument.
556
557 pthread_cleanup_push and pthread_cleanup_pop are macros and must always
558 be used in matching pairs at the same nesting level of braces. */
559 # define pthread_cleanup_push(routine, arg) \
560 do { \
561 __pthread_cleanup_class __clframe (routine, arg)
562
563 /* Remove a cleanup handler installed by the matching pthread_cleanup_push.
564 If EXECUTE is non-zero, the handler function is called. */
565 # define pthread_cleanup_pop(execute) \
566 __clframe.__setdoit (execute); \
567 } while (0)
568
569 # ifdef __USE_GNU
570 /* Install a cleanup handler as pthread_cleanup_push does, but also
571 saves the current cancellation type and sets it to deferred
572 cancellation. */
573 # define pthread_cleanup_push_defer_np(routine, arg) \
574 do { \
575 __pthread_cleanup_class __clframe (routine, arg); \
576 __clframe.__defer ()
577
578 /* Remove a cleanup handler as pthread_cleanup_pop does, but also
579 restores the cancellation type that was in effect when the matching
580 pthread_cleanup_push_defer was called. */
581 # define pthread_cleanup_pop_restore_np(execute) \
582 __clframe.__restore (); \
583 __clframe.__setdoit (execute); \
584 } while (0)
585 # endif
586 # else
587 /* Function called to call the cleanup handler. As an extern inline
588 function the compiler is free to decide inlining the change when
589 needed or fall back on the copy which must exist somewhere
590 else. */
591 __extern_inline void
592 __pthread_cleanup_routine (struct __pthread_cleanup_frame *__frame)
593 {
594 if (__frame->__do_it)
595 __frame->__cancel_routine (__frame->__cancel_arg);
596 }
597
598 /* Install a cleanup handler: ROUTINE will be called with arguments ARG
599 when the thread is canceled or calls pthread_exit. ROUTINE will also
600 be called with arguments ARG when the matching pthread_cleanup_pop
601 is executed with non-zero EXECUTE argument.
602
603 pthread_cleanup_push and pthread_cleanup_pop are macros and must always
604 be used in matching pairs at the same nesting level of braces. */
605 # define pthread_cleanup_push(routine, arg) \
606 do { \
607 struct __pthread_cleanup_frame __clframe \
608 __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \
609 = { .__cancel_routine = (routine), .__cancel_arg = (arg), \
610 .__do_it = 1 };
611
612 /* Remove a cleanup handler installed by the matching pthread_cleanup_push.
613 If EXECUTE is non-zero, the handler function is called. */
614 # define pthread_cleanup_pop(execute) \
615 __clframe.__do_it = (execute); \
616 } while (0)
617
618 # ifdef __USE_GNU
619 /* Install a cleanup handler as pthread_cleanup_push does, but also
620 saves the current cancellation type and sets it to deferred
621 cancellation. */
622 # define pthread_cleanup_push_defer_np(routine, arg) \
623 do { \
624 struct __pthread_cleanup_frame __clframe \
625 __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \
626 = { .__cancel_routine = (routine), .__cancel_arg = (arg), \
627 .__do_it = 1 }; \
628 (void) pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, \
629 &__clframe.__cancel_type)
630
631 /* Remove a cleanup handler as pthread_cleanup_pop does, but also
632 restores the cancellation type that was in effect when the matching
633 pthread_cleanup_push_defer was called. */
634 # define pthread_cleanup_pop_restore_np(execute) \
635 (void) pthread_setcanceltype (__clframe.__cancel_type, NULL); \
636 __clframe.__do_it = (execute); \
637 } while (0)
638 # endif
639 # endif
640 #else
641 /* Install a cleanup handler: ROUTINE will be called with arguments ARG
642 when the thread is canceled or calls pthread_exit. ROUTINE will also
643 be called with arguments ARG when the matching pthread_cleanup_pop
644 is executed with non-zero EXECUTE argument.
645
646 pthread_cleanup_push and pthread_cleanup_pop are macros and must always
647 be used in matching pairs at the same nesting level of braces. */
648 # define pthread_cleanup_push(routine, arg) \
649 do { \
650 __pthread_unwind_buf_t __cancel_buf; \
651 void (*__cancel_routine) (void *) = (routine); \
652 void *__cancel_arg = (arg); \
653 int not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \
654 __cancel_buf.__cancel_jmp_buf, 0); \
655 if (__builtin_expect (not_first_call, 0)) \
656 { \
657 __cancel_routine (__cancel_arg); \
658 __pthread_unwind_next (&__cancel_buf); \
659 /* NOTREACHED */ \
660 } \
661 \
662 __pthread_register_cancel (&__cancel_buf); \
663 do {
664 extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf)
665 __cleanup_fct_attribute;
666
667 /* Remove a cleanup handler installed by the matching pthread_cleanup_push.
668 If EXECUTE is non-zero, the handler function is called. */
669 # define pthread_cleanup_pop(execute) \
670 do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\
671 } while (0); \
672 __pthread_unregister_cancel (&__cancel_buf); \
673 if (execute) \
674 __cancel_routine (__cancel_arg); \
675 } while (0)
676 extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf)
677 __cleanup_fct_attribute;
678
679 # ifdef __USE_GNU
680 /* Install a cleanup handler as pthread_cleanup_push does, but also
681 saves the current cancellation type and sets it to deferred
682 cancellation. */
683 # define pthread_cleanup_push_defer_np(routine, arg) \
684 do { \
685 __pthread_unwind_buf_t __cancel_buf; \
686 void (*__cancel_routine) (void *) = (routine); \
687 void *__cancel_arg = (arg); \
688 int not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \
689 __cancel_buf.__cancel_jmp_buf, 0); \
690 if (__builtin_expect (not_first_call, 0)) \
691 { \
692 __cancel_routine (__cancel_arg); \
693 __pthread_unwind_next (&__cancel_buf); \
694 /* NOTREACHED */ \
695 } \
696 \
697 __pthread_register_cancel_defer (&__cancel_buf); \
698 do {
699 extern void __pthread_register_cancel_defer (__pthread_unwind_buf_t *__buf)
700 __cleanup_fct_attribute;
701
702 /* Remove a cleanup handler as pthread_cleanup_pop does, but also
703 restores the cancellation type that was in effect when the matching
704 pthread_cleanup_push_defer was called. */
705 # define pthread_cleanup_pop_restore_np(execute) \
706 do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\
707 } while (0); \
708 __pthread_unregister_cancel_restore (&__cancel_buf); \
709 if (execute) \
710 __cancel_routine (__cancel_arg); \
711 } while (0)
712 extern void __pthread_unregister_cancel_restore (__pthread_unwind_buf_t *__buf)
713 __cleanup_fct_attribute;
714 # endif
715
716 /* Internal interface to initiate cleanup. */
717 extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf)
718 __cleanup_fct_attribute __attribute__ ((__noreturn__))
719 # ifndef SHARED
720 __attribute__ ((__weak__))
721 # endif
722 ;
723 #endif
724
725 /* Function used in the macros. */
726 struct __jmp_buf_tag;
727 extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROW;
728
729
730 /* Mutex handling. */
731
732 /* Initialize a mutex. */
733 extern int pthread_mutex_init (pthread_mutex_t *__mutex,
734 __const pthread_mutexattr_t *__mutexattr)
735 __THROW __nonnull ((1));
736
737 /* Destroy a mutex. */
738 extern int pthread_mutex_destroy (pthread_mutex_t *__mutex)
739 __THROW __nonnull ((1));
740
741 /* Try locking a mutex. */
742 extern int pthread_mutex_trylock (pthread_mutex_t *__mutex)
743 __THROW __nonnull ((1));
744
745 /* Lock a mutex. */
746 extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
747 __THROW __nonnull ((1));
748
749 #ifdef __USE_XOPEN2K
750 /* Wait until lock becomes available, or specified time passes. */
751 extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
752 __const struct timespec *__restrict
753 __abstime) __THROW __nonnull ((1, 2));
754 #endif
755
756 /* Unlock a mutex. */
757 extern int pthread_mutex_unlock (pthread_mutex_t *__mutex)
758 __THROW __nonnull ((1));
759
760
761 /* Get the priority ceiling of MUTEX. */
762 extern int pthread_mutex_getprioceiling (__const pthread_mutex_t *
763 __restrict __mutex,
764 int *__restrict __prioceiling)
765 __THROW __nonnull ((1, 2));
766
767 /* Set the priority ceiling of MUTEX to PRIOCEILING, return old
768 priority ceiling value in *OLD_CEILING. */
769 extern int pthread_mutex_setprioceiling (pthread_mutex_t *__restrict __mutex,
770 int __prioceiling,
771 int *__restrict __old_ceiling)
772 __THROW __nonnull ((1, 3));
773
774
775 #ifdef __USE_XOPEN2K8
776 /* Declare the state protected by MUTEX as consistent. */
777 extern int pthread_mutex_consistent (pthread_mutex_t *__mutex)
778 __THROW __nonnull ((1));
779 # ifdef __USE_GNU
780 extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex)
781 __THROW __nonnull ((1));
782 # endif
783 #endif
784
785
786 /* Functions for handling mutex attributes. */
787
788 /* Initialize mutex attribute object ATTR with default attributes
789 (kind is PTHREAD_MUTEX_TIMED_NP). */
790 extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr)
791 __THROW __nonnull ((1));
792
793 /* Destroy mutex attribute object ATTR. */
794 extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr)
795 __THROW __nonnull ((1));
796
797 /* Get the process-shared flag of the mutex attribute ATTR. */
798 extern int pthread_mutexattr_getpshared (__const pthread_mutexattr_t *
799 __restrict __attr,
800 int *__restrict __pshared)
801 __THROW __nonnull ((1, 2));
802
803 /* Set the process-shared flag of the mutex attribute ATTR. */
804 extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr,
805 int __pshared)
806 __THROW __nonnull ((1));
807
808 #if defined __USE_UNIX98 || defined __USE_XOPEN2K8
809 /* Return in *KIND the mutex kind attribute in *ATTR. */
810 extern int pthread_mutexattr_gettype (__const pthread_mutexattr_t *__restrict
811 __attr, int *__restrict __kind)
812 __THROW __nonnull ((1, 2));
813
814 /* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL,
815 PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or
816 PTHREAD_MUTEX_DEFAULT). */
817 extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind)
818 __THROW __nonnull ((1));
819 #endif
820
821 /* Return in *PROTOCOL the mutex protocol attribute in *ATTR. */
822 extern int pthread_mutexattr_getprotocol (__const pthread_mutexattr_t *
823 __restrict __attr,
824 int *__restrict __protocol)
825 __THROW __nonnull ((1, 2));
826
827 /* Set the mutex protocol attribute in *ATTR to PROTOCOL (either
828 PTHREAD_PRIO_NONE, PTHREAD_PRIO_INHERIT, or PTHREAD_PRIO_PROTECT). */
829 extern int pthread_mutexattr_setprotocol (pthread_mutexattr_t *__attr,
830 int __protocol)
831 __THROW __nonnull ((1));
832
833 /* Return in *PRIOCEILING the mutex prioceiling attribute in *ATTR. */
834 extern int pthread_mutexattr_getprioceiling (__const pthread_mutexattr_t *
835 __restrict __attr,
836 int *__restrict __prioceiling)
837 __THROW __nonnull ((1, 2));
838
839 /* Set the mutex prioceiling attribute in *ATTR to PRIOCEILING. */
840 extern int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *__attr,
841 int __prioceiling)
842 __THROW __nonnull ((1));
843
844 #ifdef __USE_XOPEN2K
845 /* Get the robustness flag of the mutex attribute ATTR. */
846 extern int pthread_mutexattr_getrobust (__const pthread_mutexattr_t *__attr,
847 int *__robustness)
848 __THROW __nonnull ((1, 2));
849 # ifdef __USE_GNU
850 extern int pthread_mutexattr_getrobust_np (__const pthread_mutexattr_t *__attr,
851 int *__robustness)
852 __THROW __nonnull ((1, 2));
853 # endif
854
855 /* Set the robustness flag of the mutex attribute ATTR. */
856 extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr,
857 int __robustness)
858 __THROW __nonnull ((1));
859 # ifdef __USE_GNU
860 extern int pthread_mutexattr_setrobust_np (pthread_mutexattr_t *__attr,
861 int __robustness)
862 __THROW __nonnull ((1));
863 # endif
864 #endif
865
866
867 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
868 /* Functions for handling read-write locks. */
869
870 /* Initialize read-write lock RWLOCK using attributes ATTR, or use
871 the default values if later is NULL. */
872 extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
873 __const pthread_rwlockattr_t *__restrict
874 __attr) __THROW __nonnull ((1));
875
876 /* Destroy read-write lock RWLOCK. */
877 extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock)
878 __THROW __nonnull ((1));
879
880 /* Acquire read lock for RWLOCK. */
881 extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock)
882 __THROW __nonnull ((1));
883
884 /* Try to acquire read lock for RWLOCK. */
885 extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
886 __THROW __nonnull ((1));
887
888 # ifdef __USE_XOPEN2K
889 /* Try to acquire read lock for RWLOCK or return after specfied time. */
890 extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
891 __const struct timespec *__restrict
892 __abstime) __THROW __nonnull ((1, 2));
893 # endif
894
895 /* Acquire write lock for RWLOCK. */
896 extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
897 __THROW __nonnull ((1));
898
899 /* Try to acquire write lock for RWLOCK. */
900 extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
901 __THROW __nonnull ((1));
902
903 # ifdef __USE_XOPEN2K
904 /* Try to acquire write lock for RWLOCK or return after specfied time. */
905 extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
906 __const struct timespec *__restrict
907 __abstime) __THROW __nonnull ((1, 2));
908 # endif
909
910 /* Unlock RWLOCK. */
911 extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
912 __THROW __nonnull ((1));
913
914
915 /* Functions for handling read-write lock attributes. */
916
917 /* Initialize attribute object ATTR with default values. */
918 extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr)
919 __THROW __nonnull ((1));
920
921 /* Destroy attribute object ATTR. */
922 extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr)
923 __THROW __nonnull ((1));
924
925 /* Return current setting of process-shared attribute of ATTR in PSHARED. */
926 extern int pthread_rwlockattr_getpshared (__const pthread_rwlockattr_t *
927 __restrict __attr,
928 int *__restrict __pshared)
929 __THROW __nonnull ((1, 2));
930
931 /* Set process-shared attribute of ATTR to PSHARED. */
932 extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr,
933 int __pshared)
934 __THROW __nonnull ((1));
935
936 /* Return current setting of reader/writer preference. */
937 extern int pthread_rwlockattr_getkind_np (__const pthread_rwlockattr_t *
938 __restrict __attr,
939 int *__restrict __pref)
940 __THROW __nonnull ((1, 2));
941
942 /* Set reader/write preference. */
943 extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr,
944 int __pref) __THROW __nonnull ((1));
945 #endif
946
947
948 /* Functions for handling conditional variables. */
949
950 /* Initialize condition variable COND using attributes ATTR, or use
951 the default values if later is NULL. */
952 extern int pthread_cond_init (pthread_cond_t *__restrict __cond,
953 __const pthread_condattr_t *__restrict
954 __cond_attr) __THROW __nonnull ((1));
955
956 /* Destroy condition variable COND. */
957 extern int pthread_cond_destroy (pthread_cond_t *__cond)
958 __THROW __nonnull ((1));
959
960 /* Wake up one thread waiting for condition variable COND. */
961 extern int pthread_cond_signal (pthread_cond_t *__cond)
962 __THROW __nonnull ((1));
963
964 /* Wake up all threads waiting for condition variables COND. */
965 extern int pthread_cond_broadcast (pthread_cond_t *__cond)
966 __THROW __nonnull ((1));
967
968 /* Wait for condition variable COND to be signaled or broadcast.
969 MUTEX is assumed to be locked before.
970
971 This function is a cancellation point and therefore not marked with
972 __THROW. */
973 extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
974 pthread_mutex_t *__restrict __mutex)
975 __nonnull ((1, 2));
976
977 /* Wait for condition variable COND to be signaled or broadcast until
978 ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an
979 absolute time specification; zero is the beginning of the epoch
980 (00:00:00 GMT, January 1, 1970).
981
982 This function is a cancellation point and therefore not marked with
983 __THROW. */
984 extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
985 pthread_mutex_t *__restrict __mutex,
986 __const struct timespec *__restrict
987 __abstime) __nonnull ((1, 2, 3));
988
989 /* Functions for handling condition variable attributes. */
990
991 /* Initialize condition variable attribute ATTR. */
992 extern int pthread_condattr_init (pthread_condattr_t *__attr)
993 __THROW __nonnull ((1));
994
995 /* Destroy condition variable attribute ATTR. */
996 extern int pthread_condattr_destroy (pthread_condattr_t *__attr)
997 __THROW __nonnull ((1));
998
999 /* Get the process-shared flag of the condition variable attribute ATTR. */
1000 extern int pthread_condattr_getpshared (__const pthread_condattr_t *
1001 __restrict __attr,
1002 int *__restrict __pshared)
1003 __THROW __nonnull ((1, 2));
1004
1005 /* Set the process-shared flag of the condition variable attribute ATTR. */
1006 extern int pthread_condattr_setpshared (pthread_condattr_t *__attr,
1007 int __pshared) __THROW __nonnull ((1));
1008
1009 #ifdef __USE_XOPEN2K
1010 /* Get the clock selected for the conditon variable attribute ATTR. */
1011 extern int pthread_condattr_getclock (__const pthread_condattr_t *
1012 __restrict __attr,
1013 __clockid_t *__restrict __clock_id)
1014 __THROW __nonnull ((1, 2));
1015
1016 /* Set the clock selected for the conditon variable attribute ATTR. */
1017 extern int pthread_condattr_setclock (pthread_condattr_t *__attr,
1018 __clockid_t __clock_id)
1019 __THROW __nonnull ((1));
1020 #endif
1021
1022
1023 #ifdef __USE_XOPEN2K
1024 /* Functions to handle spinlocks. */
1025
1026 /* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can
1027 be shared between different processes. */
1028 extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared)
1029 __THROW __nonnull ((1));
1030
1031 /* Destroy the spinlock LOCK. */
1032 extern int pthread_spin_destroy (pthread_spinlock_t *__lock)
1033 __THROW __nonnull ((1));
1034
1035 /* Wait until spinlock LOCK is retrieved. */
1036 extern int pthread_spin_lock (pthread_spinlock_t *__lock)
1037 __THROW __nonnull ((1));
1038
1039 /* Try to lock spinlock LOCK. */
1040 extern int pthread_spin_trylock (pthread_spinlock_t *__lock)
1041 __THROW __nonnull ((1));
1042
1043 /* Release spinlock LOCK. */
1044 extern int pthread_spin_unlock (pthread_spinlock_t *__lock)
1045 __THROW __nonnull ((1));
1046
1047
1048 /* Functions to handle barriers. */
1049
1050 /* Initialize BARRIER with the attributes in ATTR. The barrier is
1051 opened when COUNT waiters arrived. */
1052 extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier,
1053 __const pthread_barrierattr_t *__restrict
1054 __attr, unsigned int __count)
1055 __THROW __nonnull ((1));
1056
1057 /* Destroy a previously dynamically initialized barrier BARRIER. */
1058 extern int pthread_barrier_destroy (pthread_barrier_t *__barrier)
1059 __THROW __nonnull ((1));
1060
1061 /* Wait on barrier BARRIER. */
1062 extern int pthread_barrier_wait (pthread_barrier_t *__barrier)
1063 __THROW __nonnull ((1));
1064
1065
1066 /* Initialize barrier attribute ATTR. */
1067 extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr)
1068 __THROW __nonnull ((1));
1069
1070 /* Destroy previously dynamically initialized barrier attribute ATTR. */
1071 extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr)
1072 __THROW __nonnull ((1));
1073
1074 /* Get the process-shared flag of the barrier attribute ATTR. */
1075 extern int pthread_barrierattr_getpshared (__const pthread_barrierattr_t *
1076 __restrict __attr,
1077 int *__restrict __pshared)
1078 __THROW __nonnull ((1, 2));
1079
1080 /* Set the process-shared flag of the barrier attribute ATTR. */
1081 extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr,
1082 int __pshared)
1083 __THROW __nonnull ((1));
1084 #endif
1085
1086
1087 /* Functions for handling thread-specific data. */
1088
1089 /* Create a key value identifying a location in the thread-specific
1090 data area. Each thread maintains a distinct thread-specific data
1091 area. DESTR_FUNCTION, if non-NULL, is called with the value
1092 associated to that key when the key is destroyed.
1093 DESTR_FUNCTION is not called if the value associated is NULL when
1094 the key is destroyed. */
1095 extern int pthread_key_create (pthread_key_t *__key,
1096 void (*__destr_function) (void *))
1097 __THROW __nonnull ((1));
1098
1099 /* Destroy KEY. */
1100 extern int pthread_key_delete (pthread_key_t __key) __THROW;
1101
1102 /* Return current value of the thread-specific data slot identified by KEY. */
1103 extern void *pthread_getspecific (pthread_key_t __key) __THROW;
1104
1105 /* Store POINTER in the thread-specific data slot identified by KEY. */
1106 extern int pthread_setspecific (pthread_key_t __key,
1107 __const void *__pointer) __THROW ;
1108
1109
1110 #ifdef __USE_XOPEN2K
1111 /* Get ID of CPU-time clock for thread THREAD_ID. */
1112 extern int pthread_getcpuclockid (pthread_t __thread_id,
1113 __clockid_t *__clock_id)
1114 __THROW __nonnull ((2));
1115 #endif
1116
1117
1118 /* Install handlers to be called when a new process is created with FORK.
1119 The PREPARE handler is called in the parent process just before performing
1120 FORK. The PARENT handler is called in the parent process just after FORK.
1121 The CHILD handler is called in the child process. Each of the three
1122 handlers can be NULL, meaning that no handler needs to be called at that
1123 point.
1124 PTHREAD_ATFORK can be called several times, in which case the PREPARE
1125 handlers are called in LIFO order (last added with PTHREAD_ATFORK,
1126 first called before FORK), and the PARENT and CHILD handlers are called
1127 in FIFO (first added, first called). */
1128
1129 extern int pthread_atfork (void (*__prepare) (void),
1130 void (*__parent) (void),
1131 void (*__child) (void)) __THROW;
1132
1133
1134 #ifdef __USE_EXTERN_INLINES
1135 /* Optimizations. */
1136 __extern_inline int
1137 __NTH (pthread_equal (pthread_t __thread1, pthread_t __thread2))
1138 {
1139 return __thread1 == __thread2;
1140 }
1141 #endif
1142
1143 __END_DECLS
1144
1145 #endif /* pthread.h */
1146