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/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include "pthreadP.h"
int
pthread_rwlockattr_setkind_np (attr, pref)
pthread_rwlockattr_t *attr;
int pref;
{
struct pthread_rwlockattr *iattr;
if (pref != PTHREAD_RWLOCK_PREFER_READER_NP
&& pref != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP
&& __builtin_expect (pref != PTHREAD_RWLOCK_PREFER_WRITER_NP, 0))
return EINVAL;
iattr = (struct pthread_rwlockattr *) attr;
iattr->lockkind = pref;
return 0;
}
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