glibc/nptl/pthread_mutexattr_init.c

52 lines
1.9 KiB
C

/* Copyright (C) 2002-2024 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 <string.h>
#include <pthreadP.h>
#include <shlib-compat.h>
int
___pthread_mutexattr_init (pthread_mutexattr_t *attr)
{
ASSERT_TYPE_SIZE (pthread_mutexattr_t, __SIZEOF_PTHREAD_MUTEXATTR_T);
ASSERT_PTHREAD_INTERNAL_SIZE (pthread_mutexattr_t,
struct pthread_mutexattr);
if (sizeof (struct pthread_mutexattr) != sizeof (pthread_mutexattr_t))
memset (attr, '\0', sizeof (*attr));
/* We use bit 31 to signal whether the mutex is going to be
process-shared or not. By default it is zero, i.e., the mutex is
not process-shared. */
((struct pthread_mutexattr *) attr)->mutexkind = PTHREAD_MUTEX_NORMAL;
return 0;
}
versioned_symbol (libc, ___pthread_mutexattr_init,
pthread_mutexattr_init, GLIBC_2_34);
libc_hidden_ver (___pthread_mutexattr_init, __pthread_mutexattr_init)
#ifndef SHARED
strong_alias (___pthread_mutexattr_init, __pthread_mutexattr_init)
#endif
#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34)
compat_symbol (libpthread, ___pthread_mutexattr_init,
pthread_mutexattr_init, GLIBC_2_0);
compat_symbol (libpthread, ___pthread_mutexattr_init,
__pthread_mutexattr_init, GLIBC_2_0);
#endif