<?php
+/**
+ * Object caching using XCache.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Cache
+ */
/**
* Wrapper for XCache object caching functions; identical interface
/**
* Get a value from the XCache object cache
*
- * @param $key String: cache key
+ * @param string $key cache key
+ * @param $casToken mixed: cas token
* @return mixed
*/
- public function get( $key ) {
+ public function get( $key, &$casToken = null ) {
$val = xcache_get( $key );
if ( is_string( $val ) ) {
- $val = unserialize( $val );
+ if ( $this->isInteger( $val ) ) {
+ $val = intval( $val );
+ } else {
+ $val = unserialize( $val );
+ }
+ } elseif ( is_null( $val ) ) {
+ return false;
}
return $val;
/**
* Store a value in the XCache object cache
*
- * @param $key String: cache key
+ * @param string $key cache key
* @param $value Mixed: object to store
- * @param $expire Int: expiration time
+ * @param int $expire expiration time
* @return bool
*/
public function set( $key, $value, $expire = 0 ) {
- xcache_set( $key, serialize( $value ), $expire );
+ if ( !$this->isInteger( $value ) ) {
+ $value = serialize( $value );
+ }
+
+ xcache_set( $key, $value, $expire );
return true;
}
+ /**
+ * @param $casToken mixed
+ * @param $key string
+ * @param $value mixed
+ * @param $exptime int
+ * @return bool
+ */
+ public function cas( $casToken, $key, $value, $exptime = 0 ) {
+ // Can't find any documentation on xcache cas
+ throw new MWException( "CAS is not implemented in " . __CLASS__ );
+ }
+
/**
* Remove a value from the XCache object cache
*
- * @param $key String: cache key
- * @param $time Int: not used in this implementation
+ * @param string $key cache key
+ * @param int $time not used in this implementation
* @return bool
*/
public function delete( $key, $time = 0 ) {
xcache_unset( $key );
return true;
}
-}
+ /**
+ * Merge an item.
+ * XCache does not seem to support any way of performing CAS - this however will
+ * provide a way to perform CAS-like functionality.
+ *
+ * @param $key string
+ * @param $callback closure Callback method to be executed
+ * @param int $exptime Either an interval in seconds or a unix timestamp for expiry
+ * @param int $attempts The amount of times to attempt a merge in case of failure
+ * @return bool success
+ */
+ public function merge( $key, closure $callback, $exptime = 0, $attempts = 10 ) {
+ return $this->mergeViaLock( $key, $callback, $exptime, $attempts );
+ }
+
+ public function incr( $key, $value = 1 ) {
+ return xcache_inc( $key, $value );
+ }
+
+ public function decr( $key, $value = 1 ) {
+ return xcache_dec( $key, $value );
+ }
+}