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bk@work.mysql.com
2000-07-31 21:29:14 +02:00
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mit-pthreads/include/pthread/queue.h Executable file
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/* ==== queue.h ============================================================
* Copyright (c) 1993 by Chris Provenzano, proven@mit.edu
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Chris Provenzano.
* 4. The name of Chris Provenzano may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*
* Description : mutex header.
*
* 1.00 93/07/20 proven
* -Started coding this file.
*/
/*
* New queue structures
*/
struct pthread_queue {
struct pthread *q_next;
struct pthread *q_last;
void *q_data;
};
/*
* Static queue initialization values.
*/
#define PTHREAD_QUEUE_INITIALIZER { NULL, NULL, NULL }
/*
* New functions
* Should make pthread_queue_get a macro
*/
__BEGIN_DECLS
void pthread_queue_init __P_((struct pthread_queue *));
void pthread_queue_enq __P_((struct pthread_queue *, struct pthread *));
int pthread_queue_remove __P_((struct pthread_queue *, struct pthread *));
struct pthread *pthread_queue_get __P_((struct pthread_queue *));
struct pthread *pthread_queue_deq __P_((struct pthread_queue *));
__END_DECLS