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/* semaphore.h: POSIX semaphore interface
Copyright 2001, 2003, 2007 Red Hat, Inc.
Written by Robert Collins <rbtcollins@hotmail.com>
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <sys/types.h>
#ifndef _SEMAPHORE_H
#define _SEMAPHORE_H
#ifdef __cplusplus
extern "C"
{
#endif
#ifndef __INSIDE_CYGWIN__
typedef struct __sem_t {char __dummy;} *sem_t;
#endif
#define SEM_FAILED 0
/* Semaphores */
int sem_init (sem_t * sem, int pshared, unsigned int value);
int sem_destroy (sem_t * sem);
sem_t *sem_open (const char *name, int oflag, ...);
int sem_close (sem_t *sem);
int sem_wait (sem_t * sem);
int sem_trywait (sem_t * sem);
int sem_timedwait (sem_t * sem, const struct timespec *abstime);
int sem_post (sem_t * sem);
int sem_getvalue (sem_t * sem, int *sval);
#ifdef __cplusplus
}
#endif
#endif /* _SEMAPHORE_H */
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