120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
|
|
* 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 Daniel Eischen.
|
|
* 4. 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 DANIEL EISCHEN 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 <string.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include "un-namespace.h"
|
|
#include "thr_private.h"
|
|
|
|
__weak_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling);
|
|
__weak_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling);
|
|
__weak_reference(_pthread_mutex_getprioceiling, pthread_mutex_getprioceiling);
|
|
__weak_reference(_pthread_mutex_setprioceiling, pthread_mutex_setprioceiling);
|
|
|
|
int
|
|
_pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling)
|
|
{
|
|
int ret = 0;
|
|
|
|
if ((mattr == NULL) || (*mattr == NULL))
|
|
ret = EINVAL;
|
|
else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT)
|
|
ret = EINVAL;
|
|
else
|
|
*prioceiling = (*mattr)->m_ceiling;
|
|
|
|
return(ret);
|
|
}
|
|
|
|
int
|
|
_pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling)
|
|
{
|
|
int ret = 0;
|
|
|
|
if ((mattr == NULL) || (*mattr == NULL))
|
|
ret = EINVAL;
|
|
else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT)
|
|
ret = EINVAL;
|
|
else
|
|
(*mattr)->m_ceiling = prioceiling;
|
|
|
|
return(ret);
|
|
}
|
|
|
|
int
|
|
_pthread_mutex_getprioceiling(pthread_mutex_t *mutex,
|
|
int *prioceiling)
|
|
{
|
|
int ret;
|
|
|
|
if ((mutex == NULL) || (*mutex == NULL))
|
|
ret = EINVAL;
|
|
else if ((*mutex)->m_protocol != PTHREAD_PRIO_PROTECT)
|
|
ret = EINVAL;
|
|
else {
|
|
*prioceiling = (*mutex)->m_prio;
|
|
ret = 0;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
_pthread_mutex_setprioceiling(pthread_mutex_t *mutex,
|
|
int prioceiling, int *old_ceiling)
|
|
{
|
|
int ret = 0;
|
|
int tmp;
|
|
|
|
if ((mutex == NULL) || (*mutex == NULL))
|
|
ret = EINVAL;
|
|
else if ((*mutex)->m_protocol != PTHREAD_PRIO_PROTECT)
|
|
ret = EINVAL;
|
|
/* Lock the mutex: */
|
|
else if ((ret = _pthread_mutex_lock(mutex)) == 0) {
|
|
tmp = (*mutex)->m_prio;
|
|
/* Set the new ceiling: */
|
|
(*mutex)->m_prio = prioceiling;
|
|
|
|
/* Unlock the mutex: */
|
|
ret = _pthread_mutex_unlock(mutex);
|
|
|
|
/* Return the old ceiling: */
|
|
*old_ceiling = tmp;
|
|
}
|
|
return(ret);
|
|
}
|