/* $NetBSD: semaphore.h,v 1.5 2016/04/24 19:48:29 dholland 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) #include <sys/semaphore.h> /* some kernel-only bits */ #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_ */ |