1*f6217f89SApple OSS Distributions /* 2*f6217f89SApple OSS Distributions * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. 3*f6217f89SApple OSS Distributions * 4*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*f6217f89SApple OSS Distributions * 6*f6217f89SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*f6217f89SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*f6217f89SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*f6217f89SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*f6217f89SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*f6217f89SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*f6217f89SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*f6217f89SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*f6217f89SApple OSS Distributions * 15*f6217f89SApple OSS Distributions * Please obtain a copy of the License at 16*f6217f89SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*f6217f89SApple OSS Distributions * 18*f6217f89SApple OSS Distributions * The Original Code and all software distributed under the License are 19*f6217f89SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*f6217f89SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*f6217f89SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*f6217f89SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*f6217f89SApple OSS Distributions * Please see the License for the specific language governing rights and 24*f6217f89SApple OSS Distributions * limitations under the License. 25*f6217f89SApple OSS Distributions * 26*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*f6217f89SApple OSS Distributions */ 28*f6217f89SApple OSS Distributions /* @(#)semaphore.h 1.0 2/29/00 */ 29*f6217f89SApple OSS Distributions 30*f6217f89SApple OSS Distributions 31*f6217f89SApple OSS Distributions 32*f6217f89SApple OSS Distributions /* 33*f6217f89SApple OSS Distributions * semaphore.h - POSIX semaphores 34*f6217f89SApple OSS Distributions * 35*f6217f89SApple OSS Distributions * HISTORY 36*f6217f89SApple OSS Distributions * 29-Feb-00 A.Ramesh at Apple 37*f6217f89SApple OSS Distributions * Created for Mac OS X 38*f6217f89SApple OSS Distributions */ 39*f6217f89SApple OSS Distributions 40*f6217f89SApple OSS Distributions #ifndef _SYS_SEMAPHORE_H_ 41*f6217f89SApple OSS Distributions #define _SYS_SEMAPHORE_H_ 42*f6217f89SApple OSS Distributions 43*f6217f89SApple OSS Distributions typedef int sem_t; 44*f6217f89SApple OSS Distributions 45*f6217f89SApple OSS Distributions /* this should go in limits.h> */ 46*f6217f89SApple OSS Distributions #define SEM_VALUE_MAX 32767 47*f6217f89SApple OSS Distributions #define SEM_FAILED ((sem_t *)-1) 48*f6217f89SApple OSS Distributions 49*f6217f89SApple OSS Distributions #ifndef KERNEL 50*f6217f89SApple OSS Distributions #include <sys/cdefs.h> 51*f6217f89SApple OSS Distributions 52*f6217f89SApple OSS Distributions __BEGIN_DECLS 53*f6217f89SApple OSS Distributions int sem_close(sem_t *); 54*f6217f89SApple OSS Distributions int sem_destroy(sem_t *) __deprecated; 55*f6217f89SApple OSS Distributions int sem_getvalue(sem_t * __restrict, int * __restrict) __deprecated; 56*f6217f89SApple OSS Distributions int sem_init(sem_t *, int, unsigned int) __deprecated; 57*f6217f89SApple OSS Distributions sem_t * sem_open(const char *, int, ...); 58*f6217f89SApple OSS Distributions int sem_post(sem_t *); 59*f6217f89SApple OSS Distributions int sem_trywait(sem_t *); 60*f6217f89SApple OSS Distributions int sem_unlink(const char *); 61*f6217f89SApple OSS Distributions int sem_wait(sem_t *) __DARWIN_ALIAS_C(sem_wait); 62*f6217f89SApple OSS Distributions __END_DECLS 63*f6217f89SApple OSS Distributions 64*f6217f89SApple OSS Distributions #else /* KERNEL */ 65*f6217f89SApple OSS Distributions void psem_cache_init(void); 66*f6217f89SApple OSS Distributions #endif /* KERNEL */ 67*f6217f89SApple OSS Distributions 68*f6217f89SApple OSS Distributions #endif /* _SYS_SEMAPHORE_H_ */ 69