mirror of https://github.com/mpv-player/mpv
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Copyright (C) 2017 the mpv developers
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef MP_WRAP_SEMAPHORE_H_
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#define MP_WRAP_SEMAPHORE_H_
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#include "osdep/threads.h"
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// See pthread.h for rationale.
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#define sem_init m_sem_init
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#define sem_destroy m_sem_destroy
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#define sem_wait m_sem_wait
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#define sem_trywait m_sem_trywait
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#define sem_timedwait m_sem_timedwait
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#define sem_post m_sem_post
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#define SEM_VALUE_MAX 100
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typedef struct {
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mp_mutex lock;
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mp_cond wakeup;
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unsigned int value;
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} sem_t;
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int sem_init(sem_t *sem, int pshared, unsigned int value);
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int sem_destroy(sem_t *sem);
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int sem_wait(sem_t *sem);
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int sem_trywait(sem_t *sem);
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int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout);
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int sem_post(sem_t *sem);
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#endif
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