LCOM1920-T02G10

/* $NetBSD: semaphore.h,v 1.4 2012/03/08 21:59:28 joerg Exp $ */

/*-

 * Copyright (c) 2003 The NetBSD Foundation, Inc.

 * All rights reserved.

 *

 * This code is derived from software contributed to The NetBSD Foundation

 * by Christos Zoulas.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS

 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS

 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef _SEMAPHORE_H_

#define _SEMAPHORE_H_

/* POSIX 1003.1b semaphores */

struct _sem_st;

typedef        struct _sem_st *sem_t;

#define        SEM_FAILED        ((sem_t *)0)

#define        SEM_VALUE_MAX        (~0U)

#include <sys/time.h>

__BEGIN_DECLS

int         sem_close(sem_t *);

int         sem_destroy(sem_t *);

int         sem_getvalue(sem_t * __restrict, int * __restrict);

int         sem_init(sem_t *, int, unsigned int);

int         sem_post(sem_t *);

int         sem_timedwait(sem_t *, const struct timespec * __restrict);

int         sem_trywait(sem_t *);

int         sem_unlink(const char *);

int         sem_wait(sem_t *);

sem_t        *sem_open(const char *, int, ...);

__END_DECLS

#endif /* !_SEMAPHORE_H_ */