1/* Copyright (C) 2002-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <string.h>
19#include <pthreadP.h>
20#include <shlib-compat.h>
21
22int
23___pthread_mutexattr_init (pthread_mutexattr_t *attr)
24{
25 ASSERT_TYPE_SIZE (pthread_mutexattr_t, __SIZEOF_PTHREAD_MUTEXATTR_T);
26 ASSERT_PTHREAD_INTERNAL_SIZE (pthread_mutexattr_t,
27 struct pthread_mutexattr);
28
29 if (sizeof (struct pthread_mutexattr) != sizeof (pthread_mutexattr_t))
30 memset (attr, '\0', sizeof (*attr));
31
32 /* We use bit 31 to signal whether the mutex is going to be
33 process-shared or not. By default it is zero, i.e., the mutex is
34 not process-shared. */
35 ((struct pthread_mutexattr *) attr)->mutexkind = PTHREAD_MUTEX_NORMAL;
36
37 return 0;
38}
39versioned_symbol (libc, ___pthread_mutexattr_init,
40 pthread_mutexattr_init, GLIBC_2_34);
41libc_hidden_ver (___pthread_mutexattr_init, __pthread_mutexattr_init)
42#ifndef SHARED
43strong_alias (___pthread_mutexattr_init, __pthread_mutexattr_init)
44#endif
45
46#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34)
47compat_symbol (libpthread, ___pthread_mutexattr_init,
48 pthread_mutexattr_init, GLIBC_2_0);
49compat_symbol (libpthread, ___pthread_mutexattr_init,
50 __pthread_mutexattr_init, GLIBC_2_0);
51#endif
52