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/* Copyright (C) 2002, 2007, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
OpenSolaris bits contributed by David Bartley
<dtbartle@csclub.uwaterloo.ca>, 2008.
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"
#include <string.h>
#include <sys/synch.h>
#include <synchP.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;
memset (rwlock, 0, sizeof(pthread_rwlock_t));
rwlock->type = iattr->pshared |
(iattr->lockkind << PTHREAD_RWLOCK_TYPE_SHIFT);
rwlock->magic = RWL_MAGIC;
rwlock->mutex.mutex_type = iattr->pshared;
rwlock->mutex.mutex_flag = LOCK_INITED;
rwlock->mutex.mutex_magic = MUTEX_MAGIC;
rwlock->readercv.cond_type = iattr->pshared;
rwlock->readercv.cond_magic = COND_MAGIC;
rwlock->writercv.cond_type = iattr->pshared;
rwlock->writercv.cond_magic = COND_MAGIC;
return 0;
}
strong_alias (__pthread_rwlock_init, pthread_rwlock_init)
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