1 /* Get priority protocol setting from pthread_mutexattr_t.
2 Copyright (C) 2006-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
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.
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.
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/>. */
24 pthread_mutexattr_getprotocol (const pthread_mutexattr_t
*attr
, int *protocol
)
26 const struct pthread_mutexattr
*iattr
;
28 iattr
= (const struct pthread_mutexattr
*) attr
;
30 *protocol
= ((iattr
->mutexkind
& PTHREAD_MUTEXATTR_PROTOCOL_MASK
)
31 >> PTHREAD_MUTEXATTR_PROTOCOL_SHIFT
);