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69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/*
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* Copyright (c) 2000-2006 Apple Computer, 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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/* @(#)semaphore.h 1.0 2/29/00 */
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/*
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* semaphore.h - POSIX semaphores
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*
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* HISTORY
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* 29-Feb-00 A.Ramesh at Apple
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* Created for Mac OS X
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*/
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#ifndef _SYS_SEMAPHORE_H_
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#define _SYS_SEMAPHORE_H_
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typedef int sem_t;
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/* this should go in limits.h> */
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#define SEM_VALUE_MAX 32767
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#define SEM_FAILED ((sem_t *)-1)
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#ifndef KERNEL
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int sem_close(sem_t *);
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int sem_destroy(sem_t *) __deprecated;
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int sem_getvalue(sem_t * __restrict, int * __restrict) __deprecated;
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int sem_init(sem_t *, int, unsigned int) __deprecated;
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sem_t * sem_open(const char *, int, ...);
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int sem_post(sem_t *);
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int sem_trywait(sem_t *);
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int sem_unlink(const char *);
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int sem_wait(sem_t *) __DARWIN_ALIAS_C(sem_wait);
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__END_DECLS
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#else /* KERNEL */
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void psem_cache_init(void);
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#endif /* KERNEL */
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#endif /* _SYS_SEMAPHORE_H_ */
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