1*5e3eaea3SApple OSS Distributions /* 2*5e3eaea3SApple OSS Distributions * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. 3*5e3eaea3SApple OSS Distributions * 4*5e3eaea3SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*5e3eaea3SApple OSS Distributions * 6*5e3eaea3SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*5e3eaea3SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*5e3eaea3SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*5e3eaea3SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*5e3eaea3SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*5e3eaea3SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*5e3eaea3SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*5e3eaea3SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*5e3eaea3SApple OSS Distributions * 15*5e3eaea3SApple OSS Distributions * Please obtain a copy of the License at 16*5e3eaea3SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*5e3eaea3SApple OSS Distributions * 18*5e3eaea3SApple OSS Distributions * The Original Code and all software distributed under the License are 19*5e3eaea3SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*5e3eaea3SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*5e3eaea3SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*5e3eaea3SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*5e3eaea3SApple OSS Distributions * Please see the License for the specific language governing rights and 24*5e3eaea3SApple OSS Distributions * limitations under the License. 25*5e3eaea3SApple OSS Distributions * 26*5e3eaea3SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*5e3eaea3SApple OSS Distributions */ 28*5e3eaea3SApple OSS Distributions /* @(#)semaphore.h 1.0 2/29/00 */ 29*5e3eaea3SApple OSS Distributions 30*5e3eaea3SApple OSS Distributions 31*5e3eaea3SApple OSS Distributions 32*5e3eaea3SApple OSS Distributions /* 33*5e3eaea3SApple OSS Distributions * semaphore.h - POSIX semaphores 34*5e3eaea3SApple OSS Distributions * 35*5e3eaea3SApple OSS Distributions * HISTORY 36*5e3eaea3SApple OSS Distributions * 29-Feb-00 A.Ramesh at Apple 37*5e3eaea3SApple OSS Distributions * Created for Mac OS X 38*5e3eaea3SApple OSS Distributions */ 39*5e3eaea3SApple OSS Distributions 40*5e3eaea3SApple OSS Distributions #ifndef _SYS_SEMAPHORE_H_ 41*5e3eaea3SApple OSS Distributions #define _SYS_SEMAPHORE_H_ 42*5e3eaea3SApple OSS Distributions 43*5e3eaea3SApple OSS Distributions typedef int sem_t; 44*5e3eaea3SApple OSS Distributions 45*5e3eaea3SApple OSS Distributions /* this should go in limits.h> */ 46*5e3eaea3SApple OSS Distributions #define SEM_VALUE_MAX 32767 47*5e3eaea3SApple OSS Distributions #define SEM_FAILED ((sem_t *)-1) 48*5e3eaea3SApple OSS Distributions 49*5e3eaea3SApple OSS Distributions #ifndef KERNEL 50*5e3eaea3SApple OSS Distributions #include <sys/cdefs.h> 51*5e3eaea3SApple OSS Distributions 52*5e3eaea3SApple OSS Distributions __BEGIN_DECLS 53*5e3eaea3SApple OSS Distributions int sem_close(sem_t *); 54*5e3eaea3SApple OSS Distributions int sem_destroy(sem_t *) __deprecated; 55*5e3eaea3SApple OSS Distributions int sem_getvalue(sem_t * __restrict, int * __restrict) __deprecated; 56*5e3eaea3SApple OSS Distributions int sem_init(sem_t *, int, unsigned int) __deprecated; 57*5e3eaea3SApple OSS Distributions sem_t * sem_open(const char *, int, ...); 58*5e3eaea3SApple OSS Distributions int sem_post(sem_t *); 59*5e3eaea3SApple OSS Distributions int sem_trywait(sem_t *); 60*5e3eaea3SApple OSS Distributions int sem_unlink(const char *); 61*5e3eaea3SApple OSS Distributions int sem_wait(sem_t *) __DARWIN_ALIAS_C(sem_wait); 62*5e3eaea3SApple OSS Distributions __END_DECLS 63*5e3eaea3SApple OSS Distributions 64*5e3eaea3SApple OSS Distributions #else /* KERNEL */ 65*5e3eaea3SApple OSS Distributions void psem_cache_init(void); 66*5e3eaea3SApple OSS Distributions #endif /* KERNEL */ 67*5e3eaea3SApple OSS Distributions 68*5e3eaea3SApple OSS Distributions #endif /* _SYS_SEMAPHORE_H_ */ 69