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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#include "locks.h"
#include "apr_portable.h"
ap_status_t ap_create_lock(ap_lock_t **lock, ap_locktype_e type,
ap_lockscope_e scope, const char *fname,
ap_pool_t *cont)
{
ap_lock_t *new;
ap_status_t stat;
new = (ap_lock_t *)ap_pcalloc(cont, sizeof(ap_lock_t));
new->cntxt = cont;
new->type = type;
new->scope = scope;
#if defined(USE_FCNTL_SERIALIZE) || defined(USE_FLOCK_SERIALIZE)
/* file-based serialization primitives */
if (scope != APR_INTRAPROCESS) {
if (fname != NULL) {
new->fname = ap_pstrdup(cont, fname);
}
}
#endif
if (scope != APR_CROSS_PROCESS) {
#if APR_HAS_THREADS
if ((stat = ap_unix_create_intra_lock(new)) != APR_SUCCESS) {
return stat;
}
#else
return APR_ENOTIMPL;
#endif
}
if (scope != APR_INTRAPROCESS) {
if ((stat = ap_unix_create_inter_lock(new)) != APR_SUCCESS) {
return stat;
}
}
*lock = new;
return APR_SUCCESS;
}
ap_status_t ap_lock(ap_lock_t *lock)
{
ap_status_t stat;
if (lock->scope != APR_CROSS_PROCESS) {
#if APR_HAS_THREADS
if ((stat = ap_unix_lock_intra(lock)) != APR_SUCCESS) {
return stat;
}
#else
return APR_ENOTIMPL;
#endif
}
if (lock->scope != APR_INTRAPROCESS) {
if ((stat = ap_unix_lock_inter(lock)) != APR_SUCCESS) {
return stat;
}
}
return APR_SUCCESS;
}
ap_status_t ap_unlock(ap_lock_t *lock)
{
ap_status_t stat;
if (lock->scope != APR_CROSS_PROCESS) {
#if APR_HAS_THREADS
if ((stat = ap_unix_unlock_intra(lock)) != APR_SUCCESS) {
return stat;
}
#else
return APR_ENOTIMPL;
#endif
}
if (lock->scope != APR_INTRAPROCESS) {
if ((stat = ap_unix_unlock_inter(lock)) != APR_SUCCESS) {
return stat;
}
}
return APR_SUCCESS;
}
ap_status_t ap_destroy_lock(ap_lock_t *lock)
{
ap_status_t stat;
if (lock->scope != APR_CROSS_PROCESS) {
#if APR_HAS_THREADS
if ((stat = ap_unix_destroy_intra_lock(lock)) != APR_SUCCESS) {
return stat;
}
#else
return APR_ENOTIMPL;
#endif
}
if (lock->scope != APR_INTRAPROCESS) {
if ((stat = ap_unix_destroy_inter_lock(lock)) != APR_SUCCESS) {
return stat;
}
}
return APR_SUCCESS;
}
ap_status_t ap_child_init_lock(ap_lock_t **lock, const char *fname,
ap_pool_t *cont)
{
ap_status_t stat;
if ((*lock)->scope != APR_CROSS_PROCESS) {
if ((stat = ap_unix_child_init_lock(lock, cont, fname)) != APR_SUCCESS) {
return stat;
}
}
return APR_SUCCESS;
}
ap_status_t ap_get_lockdata(ap_lock_t *lock, char *key, void *data)
{
if (lock != NULL) {
return ap_get_userdata(data, key, lock->cntxt);
}
else {
data = NULL;
return APR_ENOLOCK;
}
}
ap_status_t ap_set_lockdata(ap_lock_t *lock, void *data, char *key,
ap_status_t (*cleanup) (void *))
{
if (lock != NULL) {
return ap_set_userdata(data, key, cleanup, lock->cntxt);
}
else {
data = NULL;
return APR_ENOLOCK;
}
}
ap_status_t ap_get_os_lock(ap_os_lock_t *oslock, ap_lock_t *lock)
{
if (lock == NULL) {
return APR_ENOLOCK;
}
oslock->crossproc = lock->interproc;
#if APR_HAS_THREADS
#if USE_PTHREAD_SERIALIZE
oslock->intraproc = lock->intraproc;
#endif
#endif
return APR_SUCCESS;
}
ap_status_t ap_put_os_lock(ap_lock_t **lock, ap_os_lock_t *thelock,
ap_pool_t *cont)
{
if (cont == NULL) {
return APR_ENOPOOL;
}
if ((*lock) == NULL) {
(*lock) = (ap_lock_t *)ap_pcalloc(cont, sizeof(ap_lock_t));
(*lock)->cntxt = cont;
}
(*lock)->interproc = thelock->crossproc;
#if APR_HAS_THREADS
#if defined (USE_PTHREAD_SERIALIZE)
(*lock)->intraproc = thelock->intraproc;
#endif
#endif
return APR_SUCCESS;
}
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