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/* Get priority protocol setting from pthread_mutexattr_t.
Copyright (C) 2006-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
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 <pthreadP.h>
int
pthread_mutexattr_getprotocol (const pthread_mutexattr_t *attr, int *protocol)
{
const struct pthread_mutexattr *iattr;
iattr = (const struct pthread_mutexattr *) attr;
*protocol = ((iattr->mutexkind & PTHREAD_MUTEXATTR_PROTOCOL_MASK)
>> PTHREAD_MUTEXATTR_PROTOCOL_SHIFT);
return 0;
}
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