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Diffstat (limited to 'includes/libs/objectcache/WinCacheBagOStuff.php')
-rw-r--r-- | includes/libs/objectcache/WinCacheBagOStuff.php | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/includes/libs/objectcache/WinCacheBagOStuff.php b/includes/libs/objectcache/WinCacheBagOStuff.php new file mode 100644 index 00000000..53625746 --- /dev/null +++ b/includes/libs/objectcache/WinCacheBagOStuff.php @@ -0,0 +1,99 @@ +<?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 ); + } +} |