mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 21:10:07 +00:00
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* Initialize a rwlock. Generic version.
|
|
Copyright (C) 2002-2023 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 <pt-internal.h>
|
|
|
|
int
|
|
_pthread_rwlock_init (pthread_rwlock_t *rwlock,
|
|
const pthread_rwlockattr_t *attr)
|
|
{
|
|
ASSERT_TYPE_SIZE (pthread_rwlock_t, __SIZEOF_PTHREAD_RWLOCK_T);
|
|
|
|
*rwlock = (pthread_rwlock_t) __PTHREAD_RWLOCK_INITIALIZER;
|
|
|
|
if (attr == NULL
|
|
|| memcmp (attr, &__pthread_default_rwlockattr, sizeof (*attr)) == 0)
|
|
/* Use the default attributes. */
|
|
return 0;
|
|
|
|
/* Non-default attributes. */
|
|
|
|
rwlock->__attr = malloc (sizeof *attr);
|
|
if (rwlock->__attr == NULL)
|
|
return ENOMEM;
|
|
|
|
*rwlock->__attr = *attr;
|
|
return 0;
|
|
}
|
|
|
|
strong_alias (_pthread_rwlock_init, pthread_rwlock_init);
|