41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include "pthreadP.h"
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int
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pthread_rwlockattr_setkind_np (attr, pref)
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pthread_rwlockattr_t *attr;
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int pref;
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{
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struct pthread_rwlockattr *iattr;
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if (pref != PTHREAD_RWLOCK_PREFER_READER_NP
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&& pref != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP
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&& __builtin_expect (pref != PTHREAD_RWLOCK_PREFER_WRITER_NP, 0))
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return EINVAL;
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iattr = (struct pthread_rwlockattr *) attr;
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iattr->lockkind = pref;
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return 0;
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}
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