includes/libs/objectcache/WinCacheBagOStuff.php

   1 <?php
   2 /**
   3  * Object caching using WinCache.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Cache
  22  */
  23
  24 /**
  25  * Wrapper for WinCache object caching functions; identical interface
  26  * to the APC wrapper
  27  *
  28  * @ingroup Cache
  29  */
  30 class WinCacheBagOStuff extends BagOStuff {
  31         public function get( $key, &$casToken = null, $flags = 0 ) {
  32                 $val = wincache_ucache_get( $key );
  33
  34                 $casToken = $val;
  35
  36                 if ( is_string( $val ) ) {
  37                         $val = unserialize( $val );
  38                 }
  39
  40                 return $val;
  41         }
  42
  43         public function set( $key, $value, $expire = 0 ) {
  44                 $result = wincache_ucache_set( $key, serialize( $value ), $expire );
  45
  46                 /* wincache_ucache_set returns an empty array on success if $value
  47                    was an array, bool otherwise */
  48                 return ( is_array( $result ) && $result === array() ) || $result;
  49         }
  50
  51         protected function cas( $casToken, $key, $value, $exptime = 0 ) {
  52                 return wincache_ucache_cas( $key, $casToken, serialize( $value ) );
  53         }
  54
  55         public function delete( $key ) {
  56                 wincache_ucache_delete( $key );
  57
  58                 return true;
  59         }
  60
  61         public function merge( $key, $callback, $exptime = 0, $attempts = 10 ) {
  62                 if ( !is_callable( $callback ) ) {
  63                         throw new Exception( "Got invalid callback." );
  64                 }
  65
  66                 return $this->mergeViaCas( $key, $callback, $exptime, $attempts );
  67         }
  68 }