blob: 49c5157f57470d0a2875c892cc13f06cd0b616fe [file] [log] [blame]
yuezonghe824eb0c2024-06-27 02:32:26 -07001/* Get priority protocol setting from pthread_mutexattr_t.
2 Copyright (C) 2006 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, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
20
21#include <pthreadP.h>
22
23
24int
25pthread_mutexattr_getprotocol (
26 const pthread_mutexattr_t *attr,
27 int *protocol)
28{
29 const struct pthread_mutexattr *iattr;
30
31 iattr = (const struct pthread_mutexattr *) attr;
32
33 *protocol = ((iattr->mutexkind & PTHREAD_MUTEXATTR_PROTOCOL_MASK)
34 >> PTHREAD_MUTEXATTR_PROTOCOL_SHIFT);
35
36 return 0;
37}