about summary refs log tree commit diff
path: root/nptl/pthread_mutexattr_setpshared.c
blob: c7e76e5c2cccc30b74ea58701ecb5b961e733be1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
/* Copyright (C) 2002-2021 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 <errno.h>
#include <pthreadP.h>
#include <futex-internal.h>
#include <shlib-compat.h>

int
__pthread_mutexattr_setpshared (pthread_mutexattr_t *attr, int pshared)
{
  struct pthread_mutexattr *iattr;

  int err = futex_supports_pshared (pshared);
  if (err != 0)
    return err;

  iattr = (struct pthread_mutexattr *) attr;

  if (pshared == PTHREAD_PROCESS_PRIVATE)
    iattr->mutexkind &= ~PTHREAD_MUTEXATTR_FLAG_PSHARED;
  else
    iattr->mutexkind |= PTHREAD_MUTEXATTR_FLAG_PSHARED;

  return 0;
}
versioned_symbol (libc, __pthread_mutexattr_setpshared,
                  pthread_mutexattr_setpshared, GLIBC_2_34);

#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
compat_symbol (libpthread, __pthread_mutexattr_setpshared,
               pthread_mutexattr_setpshared, GLIBC_2_2);
#endif