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 | * | |
| d7e50217 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| d7e50217 A |
8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| d7e50217 A |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 1c79356b A |
22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | /* @(#)semaphore.h 1.0 2/29/00 */ | |
| 26 | ||
| 27 | ||
| 28 | ||
| 29 | /* | |
| 30 | * semaphore.h - POSIX semaphores | |
| 31 | * | |
| 32 | * HISTORY | |
| 33 | * 29-Feb-00 A.Ramesh at Apple | |
| 34 | * Created for Mac OS X | |
| 35 | */ | |
| 36 | ||
| 37 | #ifndef _SYS_SEMAPHORE_H_ | |
| 38 | #define _SYS_SEMAPHORE_H_ | |
| 39 | ||
| 40 | typedef int sem_t; | |
| 41 | /* this should go in limits.h> */ | |
| 42 | #define SEM_VALUE_MAX 32767 | |
| 43 | #define SEM_FAILED -1 | |
| 44 | ||
| 45 | #ifndef KERNEL | |
| 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 *); | |
| 55 | ||
| 56 | #endif /* KERNEL */ | |
| 57 | ||
| 58 | #endif /* _SYS_SEMAPHORE_H_ */ |