1/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <pthreadP.h>
21#include <futex-internal.h>
22
23int
24pthread_condattr_setpshared (pthread_condattr_t *attr, int pshared)
25{
26 int err = futex_supports_pshared (pshared);
27 if (err != 0)
28 return err;
29
30 int *valuep = &((struct pthread_condattr *) attr)->value;
31
32 *valuep = (*valuep & ~1) | (pshared != PTHREAD_PROCESS_PRIVATE);
33
34 return 0;
35}
36