1*e3723e1fSApple OSS Distributions /* 2*e3723e1fSApple OSS Distributions * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. 3*e3723e1fSApple OSS Distributions * 4*e3723e1fSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*e3723e1fSApple OSS Distributions * 6*e3723e1fSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*e3723e1fSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*e3723e1fSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*e3723e1fSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*e3723e1fSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*e3723e1fSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*e3723e1fSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*e3723e1fSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*e3723e1fSApple OSS Distributions * 15*e3723e1fSApple OSS Distributions * Please obtain a copy of the License at 16*e3723e1fSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*e3723e1fSApple OSS Distributions * 18*e3723e1fSApple OSS Distributions * The Original Code and all software distributed under the License are 19*e3723e1fSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*e3723e1fSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*e3723e1fSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*e3723e1fSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*e3723e1fSApple OSS Distributions * Please see the License for the specific language governing rights and 24*e3723e1fSApple OSS Distributions * limitations under the License. 25*e3723e1fSApple OSS Distributions * 26*e3723e1fSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*e3723e1fSApple OSS Distributions */ 28*e3723e1fSApple OSS Distributions /* @(#)semaphore.h 1.0 2/29/00 */ 29*e3723e1fSApple OSS Distributions 30*e3723e1fSApple OSS Distributions 31*e3723e1fSApple OSS Distributions 32*e3723e1fSApple OSS Distributions /* 33*e3723e1fSApple OSS Distributions * semaphore.h - POSIX semaphores 34*e3723e1fSApple OSS Distributions * 35*e3723e1fSApple OSS Distributions * HISTORY 36*e3723e1fSApple OSS Distributions * 29-Feb-00 A.Ramesh at Apple 37*e3723e1fSApple OSS Distributions * Created for Mac OS X 38*e3723e1fSApple OSS Distributions */ 39*e3723e1fSApple OSS Distributions 40*e3723e1fSApple OSS Distributions #ifndef _SYS_SEMAPHORE_H_ 41*e3723e1fSApple OSS Distributions #define _SYS_SEMAPHORE_H_ 42*e3723e1fSApple OSS Distributions 43*e3723e1fSApple OSS Distributions typedef int sem_t; 44*e3723e1fSApple OSS Distributions 45*e3723e1fSApple OSS Distributions /* this should go in limits.h> */ 46*e3723e1fSApple OSS Distributions #define SEM_VALUE_MAX 32767 47*e3723e1fSApple OSS Distributions #define SEM_FAILED ((sem_t *)-1) 48*e3723e1fSApple OSS Distributions 49*e3723e1fSApple OSS Distributions #ifndef KERNEL 50*e3723e1fSApple OSS Distributions #include <sys/cdefs.h> 51*e3723e1fSApple OSS Distributions 52*e3723e1fSApple OSS Distributions __BEGIN_DECLS 53*e3723e1fSApple OSS Distributions int sem_close(sem_t *); 54*e3723e1fSApple OSS Distributions int sem_destroy(sem_t *) __deprecated; 55*e3723e1fSApple OSS Distributions int sem_getvalue(sem_t * __restrict, int * __restrict) __deprecated; 56*e3723e1fSApple OSS Distributions int sem_init(sem_t *, int, unsigned int) __deprecated; 57*e3723e1fSApple OSS Distributions sem_t * sem_open(const char *, int, ...); 58*e3723e1fSApple OSS Distributions int sem_post(sem_t *); 59*e3723e1fSApple OSS Distributions int sem_trywait(sem_t *); 60*e3723e1fSApple OSS Distributions int sem_unlink(const char *); 61*e3723e1fSApple OSS Distributions int sem_wait(sem_t *) __DARWIN_ALIAS_C(sem_wait); 62*e3723e1fSApple OSS Distributions __END_DECLS 63*e3723e1fSApple OSS Distributions 64*e3723e1fSApple OSS Distributions #else /* KERNEL */ 65*e3723e1fSApple OSS Distributions void psem_cache_init(void); 66*e3723e1fSApple OSS Distributions #endif /* KERNEL */ 67*e3723e1fSApple OSS Distributions 68*e3723e1fSApple OSS Distributions #endif /* _SYS_SEMAPHORE_H_ */ 69