84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
|
/*
|
||
|
|
* pthread_mutexattr_destroy.c
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* This translation unit implements mutual exclusion (mutex) primitives.
|
||
|
|
*
|
||
|
|
* --------------------------------------------------------------------------
|
||
|
|
*
|
||
|
|
* Pthreads-win32 - POSIX Threads Library for Win32
|
||
|
|
* Copyright(C) 1998 John E. Bossom
|
||
|
|
* Copyright(C) 1999,2005 Pthreads-win32 contributors
|
||
|
|
*
|
||
|
|
* Contact Email: rpj@callisto.canberra.edu.au
|
||
|
|
*
|
||
|
|
* The current list of contributors is contained
|
||
|
|
* in the file CONTRIBUTORS included with the source
|
||
|
|
* code distribution. The list can also be seen at the
|
||
|
|
* following World Wide Web location:
|
||
|
|
* http://sources.redhat.com/pthreads-win32/contributors.html
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This library is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with this library in the file COPYING.LIB;
|
||
|
|
* if not, write to the Free Software Foundation, Inc.,
|
||
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "pthread.h"
|
||
|
|
#include "implement.h"
|
||
|
|
|
||
|
|
|
||
|
|
int
|
||
|
|
pthread_mutexattr_destroy (pthread_mutexattr_t * attr)
|
||
|
|
/*
|
||
|
|
* ------------------------------------------------------
|
||
|
|
* DOCPUBLIC
|
||
|
|
* Destroys a mutex attributes object. The object can
|
||
|
|
* no longer be used.
|
||
|
|
*
|
||
|
|
* PARAMETERS
|
||
|
|
* attr
|
||
|
|
* pointer to an instance of pthread_mutexattr_t
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* DESCRIPTION
|
||
|
|
* Destroys a mutex attributes object. The object can
|
||
|
|
* no longer be used.
|
||
|
|
*
|
||
|
|
* NOTES:
|
||
|
|
* 1) Does not affect mutexes created using 'attr'
|
||
|
|
*
|
||
|
|
* RESULTS
|
||
|
|
* 0 successfully released attr,
|
||
|
|
* EINVAL 'attr' is invalid.
|
||
|
|
*
|
||
|
|
* ------------------------------------------------------
|
||
|
|
*/
|
||
|
|
{
|
||
|
|
int result = 0;
|
||
|
|
|
||
|
|
if (attr == NULL || *attr == NULL)
|
||
|
|
{
|
||
|
|
result = EINVAL;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pthread_mutexattr_t ma = *attr;
|
||
|
|
|
||
|
|
*attr = NULL;
|
||
|
|
free (ma);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (result);
|
||
|
|
} /* pthread_mutexattr_destroy */
|