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+<?php
+/**
+ * Object caching using WinCache.
+ *
+ * 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 WinCache object caching functions; identical interface
+ * to the APC wrapper
+ *
+ * @ingroup Cache
+ */
+class WinCacheBagOStuff extends BagOStuff {
+
+ /**
+ * Get a value from the WinCache object cache
+ *
+ * @param string $key Cache key
+ * @param int $casToken [optional] Cas token
+ * @return mixed
+ */
+ public function get( $key, &$casToken = null ) {
+ $val = wincache_ucache_get( $key );
+
+ $casToken = $val;
+
+ if ( is_string( $val ) ) {
+ $val = unserialize( $val );
+ }
+
+ return $val;
+ }
+
+ /**
+ * Store a value in the WinCache object cache
+ *
+ * @param string $key Cache key
+ * @param mixed $value Value to store
+ * @param int $expire Expiration time
+ * @return bool
+ */
+ public function set( $key, $value, $expire = 0 ) {
+ $result = wincache_ucache_set( $key, serialize( $value ), $expire );
+
+ /* wincache_ucache_set returns an empty array on success if $value
+ was an array, bool otherwise */
+ return ( is_array( $result ) && $result === array() ) || $result;
+ }
+
+ /**
+ * Store a value in the WinCache object cache, race condition-safe
+ *
+ * @param int $casToken Cas token
+ * @param string $key Cache key
+ * @param int $value Object to store
+ * @param int $exptime Expiration time
+ * @return bool
+ */
+ protected function cas( $casToken, $key, $value, $exptime = 0 ) {
+ return wincache_ucache_cas( $key, $casToken, serialize( $value ) );
+ }
+
+ /**
+ * Remove a value from the WinCache object cache
+ *
+ * @param string $key Cache key
+ * @return bool
+ */
+ public function delete( $key ) {
+ wincache_ucache_delete( $key );
+
+ return true;
+ }
+
+ public function merge( $key, $callback, $exptime = 0, $attempts = 10 ) {
+ if ( !is_callable( $callback ) ) {
+ throw new Exception( "Got invalid callback." );
+ }
+
+ return $this->mergeViaCas( $key, $callback, $exptime, $attempts );
+ }
+}