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/* Initialize a mutex. Generic version.
Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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 2.1 of the License, or (at your option) any later version.
The GNU C 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 the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <pt-internal.h>
int
_pthread_mutex_init (pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
{
*mutex = (pthread_mutex_t) __PTHREAD_MUTEX_INITIALIZER;
ASSERT_TYPE_SIZE (pthread_mutex_t, __SIZEOF_PTHREAD_MUTEX_T);
if (attr == NULL
|| memcmp (attr, &__pthread_default_mutexattr, sizeof (*attr)) == 0)
/* The default attributes. */
return 0;
if (mutex->__attr == NULL
|| mutex->__attr == __PTHREAD_ERRORCHECK_MUTEXATTR
|| mutex->__attr == __PTHREAD_RECURSIVE_MUTEXATTR)
mutex->__attr = malloc (sizeof *attr);
if (mutex->__attr == NULL)
return ENOMEM;
*mutex->__attr = *attr;
return 0;
}
strong_alias (_pthread_mutex_init, pthread_mutex_init);
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