projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 37839358 A |
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. | |
| 1c79356b | 11 | * |
| 37839358 A |
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 | |
| 1c79356b A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
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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. | |
| 1c79356b A |
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 | |
| 55e303ae A |
43 | #include <sys/cdefs.h> |
| 44 | ||
| 45 | __BEGIN_DECLS | |
| 1c79356b A |
46 | int sem_close(sem_t *); |
| 47 | int sem_destroy(sem_t *); | |
| 48 | int sem_getvalue(sem_t *, int *); | |
| 49 | int sem_init(sem_t *, int, unsigned int); | |
| 50 | sem_t * sem_open(const char *, int, ...); | |
| 51 | int sem_post(sem_t *); | |
| 52 | int sem_trywait(sem_t *); | |
| 53 | int sem_unlink(const char *); | |
| 54 | int sem_wait(sem_t *); | |
| 55e303ae | 55 | __END_DECLS |
| 1c79356b | 56 | |
| 91447636 A |
57 | #else /* KERNEL */ |
| 58 | void psem_cache_init(void); | |
| 59 | #endif /* KERNEL */ | |
| 1c79356b A |
60 | |
| 61 | #endif /* _SYS_SEMAPHORE_H_ */ |