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