NetBSD/lib/libpthread/pthreads/pthread_attr.c

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/* ==== pthread_attr.c =======================================================
1993-12-20 22:31:06 +03:00
* 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.
*
* Description : Pthread attribute functions.
*
* 1.00 93/11/04 proven
* -Started coding this file.
*/
#include "pthread.h"
#include <errno.h>
/* Currently we do no locking, should we just to be safe? CAP */
/* ==========================================================================
* pthread_attr_init()
*/
int pthread_attr_init(pthread_attr_t *attr)
{
memcpy(attr, &pthread_default_attr, sizeof(pthread_attr_t));
return(OK);
}
/* ==========================================================================
* pthread_attr_destroy()
*/
int pthread_attr_destroy(pthread_attr_t *attr)
{
return(OK);
}
/* ==========================================================================
* pthread_attr_getstacksize()
*/
int pthread_attr_getstacksize(pthread_attr_t *attr, size_t * stacksize)
{
*stacksize = attr->stacksize_attr;
return(OK);
}
/* ==========================================================================
* pthread_attr_setstacksize()
*/
int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize)
{
if (stacksize >= PTHREAD_STACK_MIN) {
attr->stacksize_attr = stacksize;
return(OK);
}
return(EINVAL);
}
/* ==========================================================================
* pthread_attr_getstackaddr()
*/
int pthread_attr_getstackaddr(pthread_attr_t *attr, void ** stackaddr)
{
*stackaddr = attr->stackaddr_attr;
return(OK);
}
/* ==========================================================================
* pthread_attr_setstackaddr()
*/
int pthread_attr_setstackaddr(pthread_attr_t *attr, void * stackaddr)
{
attr->stackaddr_attr = stackaddr;
return(OK);
}