35 lines
729 B
C
35 lines
729 B
C
/*
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* Copyright (c) 2011, ETH Zurich.
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* All rights reserved.
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*
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* This file is distributed under the terms in the attached LICENSE file.
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* If you do not find this file, copies can be found by writing to:
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* ETH Zurich D-INFK, Universitaetstrasse 6, CH-8092 Zurich. Attn: Systems Group.
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*/
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#ifndef SEMAPHORE_H
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#define SEMAPHORE_H
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#include <aos/thread_sync.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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struct posix_semaphore {
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int pshared;
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struct thread_sem thread_sem;
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uint32_t id;
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};
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typedef struct posix_semaphore 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_post(sem_t *sem);
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__END_DECLS
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#endif
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