1/* Copyright (C) 2002-2020 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
22
23int
24__pthread_mutexattr_settype (pthread_mutexattr_t *attr, int kind)
25{
26 struct pthread_mutexattr *iattr;
27
28 if (kind < PTHREAD_MUTEX_NORMAL || kind > PTHREAD_MUTEX_ADAPTIVE_NP)
29 return EINVAL;
30
31 /* Cannot distinguish between DEFAULT and NORMAL. So any settype
32 call disables elision for now. */
33 if (kind == PTHREAD_MUTEX_NORMAL)
34 kind |= PTHREAD_MUTEX_NO_ELISION_NP;
35
36 iattr = (struct pthread_mutexattr *) attr;
37
38 iattr->mutexkind = (iattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_BITS) | kind;
39
40 return 0;
41}
42weak_alias (__pthread_mutexattr_settype, pthread_mutexattr_setkind_np)
43weak_alias (__pthread_mutexattr_settype, pthread_mutexattr_settype)
44hidden_def (__pthread_mutexattr_settype)
45