projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 8ad349bb | 2 | * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 3 | * |
| 8ad349bb | 4 | * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ |
| 1c79356b | 5 | * |
| 8ad349bb A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the | |
| 10 | * License may not be used to create, or enable the creation or | |
| 11 | * redistribution of, unlawful or unlicensed copies of an Apple operating | |
| 12 | * system, or to circumvent, violate, or enable the circumvention or | |
| 13 | * violation of, any terms of an Apple operating system software license | |
| 14 | * agreement. | |
| 15 | * | |
| 16 | * Please obtain a copy of the License at | |
| 17 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 18 | * file. | |
| 19 | * | |
| 20 | * The Original Code and all software distributed under the License are | |
| 21 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 22 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 23 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 24 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 25 | * Please see the License for the specific language governing rights and | |
| 26 | * limitations under the License. | |
| 27 | * | |
| 28 | * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ | |
| 1c79356b A |
29 | */ |
| 30 | /* @(#)semaphore.h 1.0 2/29/00 */ | |
| 31 | ||
| 32 | ||
| 33 | ||
| 34 | /* | |
| 35 | * semaphore.h - POSIX semaphores | |
| 36 | * | |
| 37 | * HISTORY | |
| 38 | * 29-Feb-00 A.Ramesh at Apple | |
| 39 | * Created for Mac OS X | |
| 40 | */ | |
| 41 | ||
| 42 | #ifndef _SYS_SEMAPHORE_H_ | |
| 43 | #define _SYS_SEMAPHORE_H_ | |
| 44 | ||
| 45 | typedef int sem_t; | |
| 46 | /* this should go in limits.h> */ | |
| 47 | #define SEM_VALUE_MAX 32767 | |
| 48 | #define SEM_FAILED -1 | |
| 49 | ||
| 50 | #ifndef KERNEL | |
| 55e303ae A |
51 | #include <sys/cdefs.h> |
| 52 | ||
| 53 | __BEGIN_DECLS | |
| 1c79356b A |
54 | int sem_close(sem_t *); |
| 55 | int sem_destroy(sem_t *); | |
| 56 | int sem_getvalue(sem_t *, int *); | |
| 57 | int sem_init(sem_t *, int, unsigned int); | |
| 58 | sem_t * sem_open(const char *, int, ...); | |
| 59 | int sem_post(sem_t *); | |
| 60 | int sem_trywait(sem_t *); | |
| 61 | int sem_unlink(const char *); | |
| 62 | int sem_wait(sem_t *); | |
| 55e303ae | 63 | __END_DECLS |
| 1c79356b | 64 | |
| 91447636 A |
65 | #else /* KERNEL */ |
| 66 | void psem_cache_init(void); | |
| 67 | #endif /* KERNEL */ | |
| 1c79356b A |
68 | |
| 69 | #endif /* _SYS_SEMAPHORE_H_ */ |