1/* Get priority protocol setting from pthread_mutexattr_t.
2 Copyright (C) 2006-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <pthreadP.h>
21
22
23int
24pthread_mutexattr_getprotocol (const pthread_mutexattr_t *attr, int *protocol)
25{
26 const struct pthread_mutexattr *iattr;
27
28 iattr = (const struct pthread_mutexattr *) attr;
29
30 *protocol = ((iattr->mutexkind & PTHREAD_MUTEXATTR_PROTOCOL_MASK)
31 >> PTHREAD_MUTEXATTR_PROTOCOL_SHIFT);
32
33 return 0;
34}
35