freebsd-dev/lib/libthr/thread/thr_barrierattr.c
2004-02-19 13:51:52 +00:00

80 lines
2.5 KiB
C

/*-
* Copyright (c) 2004 Michael Telahun Makonnen <mtm@FreeBSD.Org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#include <pthread.h>
#include <stdlib.h>
#include "thr_private.h"
__weak_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy);
__weak_reference(_pthread_barrierattr_init, pthread_barrierattr_init);
__weak_reference(_pthread_barrierattr_getpshared,
pthread_barrierattr_getpshared);
__weak_reference(_pthread_barrierattr_setpshared,
pthread_barrierattr_setpshared);
int
_pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
{
if (*attr == NULL)
return (EINVAL);
free(*attr);
*attr = NULL;
return (0);
}
int
_pthread_barrierattr_init(pthread_barrierattr_t *attr)
{
*attr =
(pthread_barrierattr_t)malloc(sizeof(struct pthread_barrierattr));
if ((*attr) == NULL)
return (ENOMEM);
(*attr)->ba_pshared = PTHREAD_PROCESS_PRIVATE;
return (0);
}
int
_pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, int *pshared)
{
if (*attr == NULL)
return (EINVAL);
*pshared = (*attr)->ba_pshared;
return (0);
}
int
_pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
{
if (*attr == NULL || (pshared != PTHREAD_PROCESS_PRIVATE &&
pshared != PTHREAD_PROCESS_SHARED))
return (EINVAL);
(*attr)->ba_pshared = pshared;
return (0);
}