1/*
2 Copyright (c) 2011-2016 mingw-w64 project
3
4 Permission is hereby granted, free of charge, to any person obtaining a
5 copy of this software and associated documentation files (the "Software"),
6 to deal in the Software without restriction, including without limitation
7 the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 and/or sell copies of the Software, and to permit persons to whom the
9 Software is furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 DEALINGS IN THE SOFTWARE.
21*/
22
23#ifndef WIN_PTHREADS_SEMAPHORE_H
24#define WIN_PTHREADS_SEMAPHORE_H
25
26#include <sys/timeb.h>
27#include "pthread_compat.h"
28
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33#define SEM_VALUE_MAX INT_MAX
34
35typedef void *sem_t;
36
37#define SEM_FAILED NULL
38
39WINPTHREAD_API int sem_init(sem_t * sem, int pshared, unsigned int value);
40
41WINPTHREAD_API int sem_destroy(sem_t *sem);
42
43WINPTHREAD_API int sem_trywait(sem_t *sem);
44
45WINPTHREAD_API int sem_wait(sem_t *sem);
46
47WINPTHREAD_API int sem_timedwait32(sem_t * sem, const struct _timespec32 *t);
48WINPTHREAD_API int sem_timedwait64(sem_t * sem, const struct _timespec64 *t);
49WINPTHREAD_SEM_DECL int sem_timedwait(sem_t * sem, const struct timespec *t)
50{
51#if WINPTHREADS_TIME_BITS == 32
52 return sem_timedwait32 (sem, (const struct _timespec32 *) t);
53#else
54 return sem_timedwait64 (sem, (const struct _timespec64 *) t);
55#endif
56}
57
58WINPTHREAD_API int sem_post(sem_t *sem);
59
60WINPTHREAD_API int sem_post_multiple(sem_t *sem, int count);
61
62/* yes, it returns a semaphore (or SEM_FAILED) */
63WINPTHREAD_API sem_t * sem_open(const char * name, int oflag, mode_t mode, unsigned int value);
64
65WINPTHREAD_API int sem_close(sem_t * sem);
66
67WINPTHREAD_API int sem_unlink(const char * name);
68
69WINPTHREAD_API int sem_getvalue(sem_t * sem, int * sval);
70
71#ifdef __cplusplus
72}
73#endif
74
75#endif /* WIN_PTHREADS_SEMAPHORE_H */