1998-03-04 10:27:00 +00:00
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/*-
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* Copyright (c) 1996, 1997
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* HD Associates, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by HD Associates, Inc
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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1999-12-29 05:07:58 +00:00
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* $FreeBSD$
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1998-03-04 10:27:00 +00:00
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*/
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2002-10-03 18:34:13 +00:00
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/* semaphore.h: POSIX 1003.1b semaphores */
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#ifndef _SEMAPHORE_H_
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#define _SEMAPHORE_H_
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2000-01-20 07:55:42 +00:00
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/* Opaque type definition. */
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struct sem;
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2002-10-03 18:34:13 +00:00
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typedef struct sem * sem_t;
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2000-01-20 07:55:42 +00:00
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2002-10-03 18:34:13 +00:00
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#define SEM_FAILED ((sem_t *)0)
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2002-10-04 21:31:33 +00:00
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#define SEM_VALUE_MAX (~0U) /* Equivalent to UINT_MAX. */
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1998-03-04 10:27:00 +00:00
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1999-12-29 05:07:58 +00:00
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#ifndef _KERNEL
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1998-03-04 10:27:00 +00:00
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#include <sys/cdefs.h>
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2004-02-03 22:27:03 +00:00
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struct timespec;
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1998-03-08 17:25:38 +00:00
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__BEGIN_DECLS
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2002-10-04 21:31:33 +00:00
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int sem_close(sem_t *);
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2002-03-19 22:20:14 +00:00
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int sem_destroy(sem_t *);
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2002-10-04 21:31:33 +00:00
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int sem_getvalue(sem_t * __restrict, int * __restrict);
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int sem_init(sem_t *, int, unsigned int);
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2002-03-19 22:20:14 +00:00
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sem_t *sem_open(const char *, int, ...);
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2002-10-04 21:31:33 +00:00
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int sem_post(sem_t *);
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2004-02-03 10:15:16 +00:00
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int sem_timedwait(sem_t * __restrict, const struct timespec * __restrict);
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2002-10-04 21:31:33 +00:00
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int sem_trywait(sem_t *);
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2002-03-19 22:20:14 +00:00
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int sem_unlink(const char *);
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int sem_wait(sem_t *);
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1998-03-08 17:25:38 +00:00
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__END_DECLS
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1998-03-04 10:27:00 +00:00
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1999-12-29 05:07:58 +00:00
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#endif
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1998-03-04 10:27:00 +00:00
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2002-10-03 18:34:13 +00:00
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#endif /* !_SEMAPHORE_H_ */
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