projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| b0d623f7 | 2 | * Copyright (c) 2000-2008 Apple Inc. All rights reserved. |
| 1c79356b | 3 | * |
| 2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 1c79356b | 5 | * |
| 2d21ac55 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 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. | |
| 8f6c56a5 | 14 | * |
| 2d21ac55 A |
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 | |
| 8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 2d21ac55 A |
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. | |
| 8f6c56a5 | 25 | * |
| 2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 1c79356b A |
27 | */ |
| 28 | ||
| 29 | #ifndef _MACH_SEMAPHORE_H_ | |
| 30 | #define _MACH_SEMAPHORE_H_ | |
| 31 | ||
| 32 | #include <mach/port.h> | |
| 33 | #include <mach/mach_types.h> | |
| 34 | #include <mach/kern_return.h> | |
| 35 | #include <mach/sync_policy.h> | |
| 36 | ||
| 1c79356b A |
37 | /* |
| 38 | * Forward Declarations | |
| 39 | * | |
| 40 | * The semaphore creation and deallocation routines are | |
| 41 | * defined with the Mach task APIs in <mach/task.h>. | |
| 42 | * | |
| 43 | * kern_return_t semaphore_create(task_t task, | |
| 44 | * semaphore_t *new_semaphore, | |
| 45 | * sync_policy_t policy, | |
| 46 | * int value); | |
| 47 | * | |
| 48 | * kern_return_t semaphore_destroy(task_t task, | |
| 49 | * semaphore_t semaphore); | |
| 50 | */ | |
| 51 | ||
| 91447636 A |
52 | #include <sys/cdefs.h> |
| 53 | __BEGIN_DECLS | |
| 54 | ||
| 1c79356b A |
55 | extern kern_return_t semaphore_signal (semaphore_t semaphore); |
| 56 | extern kern_return_t semaphore_signal_all (semaphore_t semaphore); | |
| b0d623f7 A |
57 | |
| 58 | extern kern_return_t semaphore_wait (semaphore_t semaphore); | |
| 59 | ||
| 60 | #ifdef KERNEL | |
| 61 | ||
| 62 | #ifdef __LP64__ | |
| 63 | ||
| 64 | #ifdef KERNEL_PRIVATE | |
| 65 | ||
| 66 | extern kern_return_t semaphore_timedwait (semaphore_t semaphore, | |
| 67 | mach_timespec_t wait_time); | |
| 68 | ||
| 69 | #endif /* KERNEL_PRIVATE */ | |
| 70 | ||
| 71 | #else /* __LP64__ */ | |
| 72 | ||
| 73 | extern kern_return_t semaphore_timedwait (semaphore_t semaphore, | |
| 74 | mach_timespec_t wait_time); | |
| 75 | ||
| 76 | #endif /* __LP64__ */ | |
| 77 | ||
| 78 | extern kern_return_t semaphore_wait_deadline (semaphore_t semaphore, | |
| 79 | uint64_t deadline); | |
| 80 | extern kern_return_t semaphore_wait_noblock (semaphore_t semaphore); | |
| 81 | ||
| 82 | #ifdef XNU_KERNEL_PRIVATE | |
| 83 | ||
| 84 | extern kern_return_t semaphore_wait_signal (semaphore_t wait_semaphore, | |
| 85 | semaphore_t signal_semaphore); | |
| 86 | ||
| 87 | extern kern_return_t semaphore_timedwait_signal(semaphore_t wait_semaphore, | |
| 88 | semaphore_t signal_semaphore, | |
| 89 | mach_timespec_t wait_time); | |
| 90 | ||
| 1c79356b | 91 | extern kern_return_t semaphore_signal_thread (semaphore_t semaphore, |
| 91447636 | 92 | thread_t thread); |
| 1c79356b | 93 | |
| b0d623f7 A |
94 | #endif /* XNU_KERNEL_PRIVATE */ |
| 95 | ||
| 96 | #else /* KERNEL */ | |
| 97 | ||
| 1c79356b | 98 | extern kern_return_t semaphore_timedwait (semaphore_t semaphore, |
| b0d623f7 A |
99 | mach_timespec_t wait_time); |
| 100 | ||
| 101 | extern kern_return_t semaphore_timedwait_signal(semaphore_t wait_semaphore, | |
| 102 | semaphore_t signal_semaphore, | |
| 103 | mach_timespec_t wait_time); | |
| 1c79356b A |
104 | |
| 105 | extern kern_return_t semaphore_wait_signal (semaphore_t wait_semaphore, | |
| 106 | semaphore_t signal_semaphore); | |
| 107 | ||
| b0d623f7 A |
108 | extern kern_return_t semaphore_signal_thread (semaphore_t semaphore, |
| 109 | thread_t thread); | |
| 110 | ||
| 111 | #endif /* KERNEL */ | |
| 112 | ||
| 91447636 | 113 | __END_DECLS |
| 1c79356b | 114 | |
| 91447636 | 115 | #ifdef PRIVATE |
| 9bccf70c A |
116 | |
| 117 | #define SEMAPHORE_OPTION_NONE 0x00000000 | |
| 118 | ||
| 119 | #define SEMAPHORE_SIGNAL 0x00000001 | |
| 120 | #define SEMAPHORE_WAIT 0x00000002 | |
| 121 | #define SEMAPHORE_WAIT_ON_SIGNAL 0x00000008 | |
| 122 | ||
| 123 | #define SEMAPHORE_SIGNAL_TIMEOUT 0x00000010 | |
| 124 | #define SEMAPHORE_SIGNAL_ALL 0x00000020 | |
| 125 | #define SEMAPHORE_SIGNAL_INTERRUPT 0x00000040 /* libmach implements */ | |
| 126 | #define SEMAPHORE_SIGNAL_PREPOST 0x00000080 | |
| 127 | ||
| 128 | #define SEMAPHORE_WAIT_TIMEOUT 0x00000100 | |
| 129 | #define SEMAPHORE_WAIT_INTERRUPT 0x00000400 /* libmach implements */ | |
| 130 | ||
| 131 | #define SEMAPHORE_TIMEOUT_NOBLOCK 0x00100000 | |
| 132 | #define SEMAPHORE_TIMEOUT_RELATIVE 0x00200000 | |
| 133 | ||
| 134 | #define SEMAPHORE_USE_SAVED_RESULT 0x01000000 /* internal use only */ | |
| 135 | #define SEMAPHORE_SIGNAL_RELEASE 0x02000000 /* internal use only */ | |
| 136 | ||
| 91447636 | 137 | #endif /* PRIVATE */ |
| 9bccf70c | 138 | |
| 91447636 | 139 | #endif /* _MACH_SEMAPHORE_H_ */ |