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/* Copyright (C) 2002 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "pthreadP.h"
static const struct pthread_rwlockattr default_attr =
{
.lockkind = PTHREAD_RWLOCK_DEFAULT_NP,
.pshared = PTHREAD_PROCESS_PRIVATE
};
int
__pthread_rwlock_init (rwlock, attr)
pthread_rwlock_t *rwlock;
const pthread_rwlockattr_t *attr;
{
const struct pthread_rwlockattr *iattr;
iattr = ((const struct pthread_rwlockattr *) attr) ?: &default_attr;
rwlock->__data.__lock = 0;
rwlock->__data.__flags
= iattr->lockkind == PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP;
rwlock->__data.__nr_readers = 0;
rwlock->__data.__writer = 0;
rwlock->__data.__readers_wakeup = 0;
rwlock->__data.__writer_wakeup = 0;
rwlock->__data.__nr_readers_queued = 0;
rwlock->__data.__nr_writers_queued = 0;
return 0;
}
strong_alias (__pthread_rwlock_init, pthread_rwlock_init)
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