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79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*
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* Copyright (c) 2000-2008 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef _MACH_SEMAPHORE_H_
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#define _MACH_SEMAPHORE_H_
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#include <mach/port.h>
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#include <mach/mach_types.h>
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#include <mach/kern_return.h>
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#include <mach/sync_policy.h>
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/*
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* Forward Declarations
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*
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* The semaphore creation and deallocation routines are
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* defined with the Mach task APIs in <mach/task.h>.
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*
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* kern_return_t semaphore_create(task_t task,
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* semaphore_t *new_semaphore,
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* sync_policy_t policy,
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* int value);
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*
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* kern_return_t semaphore_destroy(task_t task,
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* semaphore_t semaphore);
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*/
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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extern kern_return_t semaphore_signal (semaphore_t semaphore);
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extern kern_return_t semaphore_signal_all (semaphore_t semaphore);
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extern kern_return_t semaphore_wait (semaphore_t semaphore);
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extern kern_return_t semaphore_timedwait (semaphore_t semaphore,
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mach_timespec_t wait_time);
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extern kern_return_t semaphore_timedwait_signal(semaphore_t wait_semaphore,
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semaphore_t signal_semaphore,
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mach_timespec_t wait_time);
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extern kern_return_t semaphore_wait_signal (semaphore_t wait_semaphore,
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semaphore_t signal_semaphore);
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extern kern_return_t semaphore_signal_thread (semaphore_t semaphore,
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thread_t thread);
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__END_DECLS
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#endif /* _MACH_SEMAPHORE_H_ */
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