freebsd-dev/lib/libthr/thread/thr_condattr.c
2008-08-01 01:21:49 +00:00

128 lines
3.6 KiB
C

/*
* Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
* 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. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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 "namespace.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <pthread.h>
#include "un-namespace.h"
#include "thr_private.h"
__weak_reference(_pthread_condattr_init, pthread_condattr_init);
__weak_reference(_pthread_condattr_destroy, pthread_condattr_destroy);
__weak_reference(_pthread_condattr_getclock, pthread_condattr_getclock);
__weak_reference(_pthread_condattr_setclock, pthread_condattr_setclock);
__weak_reference(_pthread_condattr_getpshared, pthread_condattr_getpshared);
__weak_reference(_pthread_condattr_setpshared, pthread_condattr_setpshared);
int
_pthread_condattr_init(pthread_condattr_t *attr)
{
pthread_condattr_t pattr;
int ret;
if ((pattr = (pthread_condattr_t)
malloc(sizeof(struct pthread_cond_attr))) == NULL) {
ret = ENOMEM;
} else {
memcpy(pattr, &_pthread_condattr_default,
sizeof(struct pthread_cond_attr));
*attr = pattr;
ret = 0;
}
return (ret);
}
int
_pthread_condattr_destroy(pthread_condattr_t *attr)
{
int ret;
if (attr == NULL || *attr == NULL) {
ret = EINVAL;
} else {
free(*attr);
*attr = NULL;
ret = 0;
}
return(ret);
}
int
_pthread_condattr_getclock(const pthread_condattr_t *attr,
clockid_t *clock_id)
{
if (attr == NULL || *attr == NULL)
return (EINVAL);
*clock_id = (*attr)->c_clockid;
return (0);
}
int
_pthread_condattr_setclock(pthread_condattr_t *attr,
clockid_t clock_id)
{
if (attr == NULL || *attr == NULL)
return (EINVAL);
if (clock_id != CLOCK_REALTIME &&
clock_id != CLOCK_VIRTUAL &&
clock_id != CLOCK_PROF &&
clock_id != CLOCK_MONOTONIC) {
return (EINVAL);
}
(*attr)->c_clockid = clock_id;
return (0);
}
int
_pthread_condattr_getpshared(const pthread_condattr_t *attr,
int *pshared)
{
if (attr == NULL || *attr == NULL)
return (EINVAL);
*pshared = PTHREAD_PROCESS_PRIVATE;
return (0);
}
int
_pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared)
{
if (attr == NULL || *attr == NULL)
return (EINVAL);
if (pshared != PTHREAD_PROCESS_PRIVATE)
return (EINVAL);
return (0);
}