1/* Copyright (C) 2002-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include "pthreadP.h"
20#include <shlib-compat.h>
21
22int
23__pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *attr, int pref)
24{
25 struct pthread_rwlockattr *iattr;
26
27 if (pref != PTHREAD_RWLOCK_PREFER_READER_NP
28 && pref != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP
29 && __builtin_expect (pref != PTHREAD_RWLOCK_PREFER_WRITER_NP, 0))
30 return EINVAL;
31
32 iattr = (struct pthread_rwlockattr *) attr;
33
34 iattr->lockkind = pref;
35
36 return 0;
37}
38versioned_symbol (libc, __pthread_rwlockattr_setkind_np,
39 pthread_rwlockattr_setkind_np, GLIBC_2_34);
40
41#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
42compat_symbol (libpthread, __pthread_rwlockattr_setkind_np,
43 pthread_rwlockattr_setkind_np, GLIBC_2_1);
44#endif
45