includes/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
  32         /**
  33          * Get a value from the WinCache object cache
  34          *
  35          * @param $key String: cache key
  36          * @return mixed
  37          */
  38         public function get( $key ) {
  39                 $val = wincache_ucache_get( $key );
  40
  41                 if ( is_string( $val ) ) {
  42                         $val = unserialize( $val );
  43                 }
  44
  45                 return $val;
  46         }
  47
  48         /**
  49          * Store a value in the WinCache object cache
  50          *
  51          * @param $key String: cache key
  52          * @param $value Mixed: object to store
  53          * @param $expire Int: expiration time
  54          * @return bool
  55          */
  56         public function set( $key, $value, $expire = 0 ) {
  57                 $result = wincache_ucache_set( $key, serialize( $value ), $expire );
  58
  59                 /* wincache_ucache_set returns an empty array on success if $value
  60                    was an array, bool otherwise */
  61                 return ( is_array( $result ) && $result === array() ) || $result;
  62         }
  63
  64         /**
  65          * Remove a value from the WinCache object cache
  66          *
  67          * @param $key String: cache key
  68          * @param $time Int: not used in this implementation
  69          * @return bool
  70          */
  71         public function delete( $key, $time = 0 ) {
  72                 wincache_ucache_delete( $key );
  73
  74                 return true;
  75         }
  76
  77         /**
  78          * @return Array
  79          */
  80         public function keys() {
  81                 $info = wincache_ucache_info();
  82                 $list = $info['ucache_entries'];
  83                 $keys = array();
  84
  85                 if ( is_null( $list ) ) {
  86                         return array();
  87                 }
  88
  89                 foreach ( $list as $entry ) {
  90                         $keys[] = $entry['key_name'];
  91                 }
  92
  93                 return $keys;
  94         }
  95 }