semaphore.h revision 1.3.10.2
1 1.3.10.2 martin /* $NetBSD: semaphore.h,v 1.3.10.2 2008/04/28 20:22:55 martin Exp $ */ 2 1.3.10.2 martin 3 1.3.10.2 martin /*- 4 1.3.10.2 martin * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 1.3.10.2 martin * All rights reserved. 6 1.3.10.2 martin * 7 1.3.10.2 martin * This code is derived from software contributed to The NetBSD Foundation 8 1.3.10.2 martin * by Christos Zoulas. 9 1.3.10.2 martin * 10 1.3.10.2 martin * Redistribution and use in source and binary forms, with or without 11 1.3.10.2 martin * modification, are permitted provided that the following conditions 12 1.3.10.2 martin * are met: 13 1.3.10.2 martin * 1. Redistributions of source code must retain the above copyright 14 1.3.10.2 martin * notice, this list of conditions and the following disclaimer. 15 1.3.10.2 martin * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.10.2 martin * notice, this list of conditions and the following disclaimer in the 17 1.3.10.2 martin * documentation and/or other materials provided with the distribution. 18 1.3.10.2 martin * 19 1.3.10.2 martin * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.3.10.2 martin * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.3.10.2 martin * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.3.10.2 martin * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.3.10.2 martin * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.3.10.2 martin * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.3.10.2 martin * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.3.10.2 martin * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.3.10.2 martin * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.3.10.2 martin * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.3.10.2 martin * POSSIBILITY OF SUCH DAMAGE. 30 1.3.10.2 martin */ 31 1.3.10.2 martin 32 1.3.10.2 martin #ifndef _SEMAPHORE_H_ 33 1.3.10.2 martin #define _SEMAPHORE_H_ 34 1.3.10.2 martin 35 1.3.10.2 martin /* POSIX 1003.1b semaphores */ 36 1.3.10.2 martin 37 1.3.10.2 martin struct _sem_st; 38 1.3.10.2 martin typedef struct _sem_st *sem_t; 39 1.3.10.2 martin 40 1.3.10.2 martin #define SEM_FAILED ((sem_t *)0) 41 1.3.10.2 martin #define SEM_VALUE_MAX (~0U) 42 1.3.10.2 martin 43 1.3.10.2 martin #include <sys/cdefs.h> 44 1.3.10.2 martin 45 1.3.10.2 martin __BEGIN_DECLS 46 1.3.10.2 martin int sem_close(sem_t *); 47 1.3.10.2 martin int sem_destroy(sem_t *); 48 1.3.10.2 martin int sem_getvalue(sem_t * __restrict, int * __restrict); 49 1.3.10.2 martin int sem_init(sem_t *, int, unsigned int); 50 1.3.10.2 martin int sem_post(sem_t *); 51 1.3.10.2 martin int sem_trywait(sem_t *); 52 1.3.10.2 martin int sem_unlink(const char *); 53 1.3.10.2 martin int sem_wait(sem_t *); 54 1.3.10.2 martin sem_t *sem_open(const char *, int, ...); 55 1.3.10.2 martin __END_DECLS 56 1.3.10.2 martin 57 1.3.10.2 martin #endif /* !_SEMAPHORE_H_ */ 58
Indexes created Tue Oct 07 21:09:53 GMT 2025