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/*
* pthread_rwlockattr_destroy.c
*
* Description:
* This translation unit implements read/write lock primitives.
*
* --------------------------------------------------------------------------
*
* Pthreads4w - POSIX Threads Library for Win32
* Copyright(C) 1998 John E. Bossom
* Copyright(C) 1999-2018, Pthreads4w contributors
*
* Homepage: https://sourceforge.net/projects/pthreads4w/
*
* 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:
* https://sourceforge.net/p/pthreads4w/wiki/Contributors/
*
* This file is part of Pthreads4w.
*
* Pthreads4w is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pthreads4w 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Pthreads4w. If not, see <http://www.gnu.org/licenses/>. *
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <limits.h>
#include "pthread.h"
#include "implement.h"
int
pthread_rwlockattr_destroy (pthread_rwlockattr_t * attr)
/*
* ------------------------------------------------------
* DOCPUBLIC
* Destroys a rwlock attributes object. The object can
* no longer be used.
*
* PARAMETERS
* attr
* pointer to an instance of pthread_rwlockattr_t
*
*
* DESCRIPTION
* Destroys a rwlock attributes object. The object can
* no longer be used.
*
* NOTES:
* 1) Does not affect rwlockss created using 'attr'
*
* RESULTS
* 0 successfully released attr,
* EINVAL 'attr' is invalid.
*
* ------------------------------------------------------
*/
{
int result = 0;
if (attr == NULL || *attr == NULL)
{
result = EINVAL;
}
else
{
pthread_rwlockattr_t rwa = *attr;
*attr = NULL;
free (rwa);
}
return (result);
} /* pthread_rwlockattr_destroy */
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