92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/* ==== cond.h ============================================================
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* Copyright (c) 1993 by Chris Provenzano, proven@mit.edu
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* 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 Chris Provenzano.
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* 4. The name of Chris Provenzano may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``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 CHRIS PROVENZANO BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* 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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* $Id: cond.h,v 1.3 1994/02/07 22:02:28 proven Exp $ $provenid: cond.h,v 1.17 1994/02/07 03:31:53 proven Exp $
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*
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* Description : mutex header.
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*
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* 1.00 93/10/30 proven
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* -Started coding this file.
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*/
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/*
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* New cond structures
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*/
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enum pthread_cond_type {
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COND_TYPE_FAST,
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COND_TYPE_STATIC_FAST,
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COND_TYPE_METERED,
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COND_TYPE_DEBUG, /* Debug conds will have lots of options */
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COND_TYPE_MAX
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};
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typedef struct pthread_cond {
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enum pthread_cond_type c_type;
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struct pthread_queue c_queue;
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semaphore c_lock;
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void * c_data;
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long c_flags;
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} pthread_cond_t;
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typedef struct pthread_cond_attr {
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enum pthread_cond_type c_type;
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long c_flags;
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} pthread_condattr_t;
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/*
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* Flags for conds.
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*/
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#define COND_FLAGS_PRIVATE 0x01
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#define COND_FLAGS_INITED 0x02
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#define COND_FLAGS_BUSY 0x04
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/*
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* Static cond initialization values.
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*/
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#define PTHREAD_COND_INITIALIZER \
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{ COND_TYPE_STATIC_FAST, PTHREAD_QUEUE_INITIALIZER, \
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NULL, SEMAPHORE_CLEAR, COND_FLAGS_INITED }
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/*
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* New functions
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*/
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__BEGIN_DECLS
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int pthread_cond_init __P((pthread_cond_t *, pthread_condattr_t *));
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int pthread_cond_wait __P((pthread_cond_t *, pthread_mutex_t *));
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int pthread_cond_signal __P((pthread_cond_t *));
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int pthread_cond_broadcast __P((pthread_cond_t *));
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int pthread_cond_destroy __P((pthread_cond_t *));
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__END_DECLS
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