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/* ==== mutexattr.c ===========================================================
* Copyright (c) 1993, 1994 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.
*
* Description : Mutex functions.
*
* 1.00 93/07/19 proven
* -Started coding this file.
*/
#ifndef lint
static const char rcsid[] = "mutexattr.c,v 1.1 1995/06/11 00:21:38 hjl Exp";
#endif
#include <pthread.h>
#include <errno.h>
/* ==========================================================================
* pthread_mutexattr_init()
*/
int pthread_mutexattr_init(pthread_mutexattr_t *attr)
{
attr->m_type = MUTEX_TYPE_FAST;
return(OK);
}
/* ==========================================================================
* pthread_mutexattr_destroy()
*/
int pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
{
return(OK);
}
/* ==========================================================================
* pthread_mutexattr_settype()
*/
int pthread_mutexattr_settype(pthread_mutexattr_t *attr, unsigned int type)
{
switch(type) {
case PTHREAD_MUTEXTYPE_FAST:
attr->m_type = MUTEX_TYPE_FAST;
break;
case PTHREAD_MUTEXTYPE_RECURSIVE:
attr->m_type = MUTEX_TYPE_COUNTING_FAST;
break;
case PTHREAD_MUTEXTYPE_DEBUG:
attr->m_type = MUTEX_TYPE_DEBUG;
break;
default:
return(EINVAL);
}
return(OK);
}
/* ==========================================================================
* pthread_mutexattr_gettype()
*/
int pthread_mutexattr_gettype(pthread_mutexattr_t *attr, unsigned int * type)
{
*type = (unsigned int)attr->m_type;
return(OK);
}
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