| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * The contents of this file constitute Original Code as defined in and |
| | 7 | * are subject to the Apple Public Source License Version 1.1 (the |
| | 8 | * "License"). You may not use this file except in compliance with the |
| | 9 | * License. Please obtain a copy of the License at |
| | 10 | * http://www.apple.com/publicsource and read it before using this file. |
| | 11 | * |
| | 12 | * This Original Code and all software distributed under the License are |
| | 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| | 17 | * License for the specific language governing rights and limitations |
| | 18 | * under the License. |
| | 19 | * |
| | 20 | * @APPLE_LICENSE_HEADER_END@ |
| | 21 | */ |
| | 22 | /* @(#)semaphore.h 1.0 2/29/00 */ |
| | 23 | |
| | 24 | |
| | 25 | |
| | 26 | /* |
| | 27 | * semaphore.h - POSIX semaphores |
| | 28 | * |
| | 29 | * HISTORY |
| | 30 | * 29-Feb-00 A.Ramesh at Apple |
| | 31 | * Created for Mac OS X |
| | 32 | */ |
| | 33 | |
| | 34 | #ifndef _SYS_SEMAPHORE_H_ |
| | 35 | #define _SYS_SEMAPHORE_H_ |
| | 36 | |
| | 37 | typedef int sem_t; |
| | 38 | /* this should go in limits.h> */ |
| | 39 | #define SEM_VALUE_MAX 32767 |
| | 40 | #define SEM_FAILED -1 |
| | 41 | |
| | 42 | #ifndef KERNEL |
| | 43 | int sem_close(sem_t *); |
| | 44 | int sem_destroy(sem_t *); |
| | 45 | int sem_getvalue(sem_t *, int *); |
| | 46 | int sem_init(sem_t *, int, unsigned int); |
| | 47 | sem_t * sem_open(const char *, int, ...); |
| | 48 | int sem_post(sem_t *); |
| | 49 | int sem_trywait(sem_t *); |
| | 50 | int sem_unlink(const char *); |
| | 51 | int sem_wait(sem_t *); |
| | 52 | |
| | 53 | #endif /* KERNEL */ |
| | 54 | |
| | 55 | #endif /* _SYS_SEMAPHORE_H_ */ |
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