includes/objectcache/APCBagOStuff.php

   1 <?php
   2 /**
   3  * Object caching using PHP's APC accelerator.
   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  * This is a wrapper for APC's shared memory functions
  26  *
  27  * @ingroup Cache
  28  */
  29 class APCBagOStuff extends BagOStuff {
  30         public function get( $key ) {
  31                 $val = apc_fetch( $key );
  32
  33                 if ( is_string( $val ) ) {
  34                         $val = unserialize( $val );
  35                 }
  36
  37                 return $val;
  38         }
  39
  40         public function set( $key, $value, $exptime = 0 ) {
  41                 apc_store( $key, serialize( $value ), $exptime );
  42
  43                 return true;
  44         }
  45
  46         public function delete( $key, $time = 0 ) {
  47                 apc_delete( $key );
  48
  49                 return true;
  50         }
  51
  52         public function keys() {
  53                 $info = apc_cache_info( 'user' );
  54                 $list = $info['cache_list'];
  55                 $keys = array();
  56
  57                 foreach ( $list as $entry ) {
  58                         $keys[] = $entry['info'];
  59                 }
  60
  61                 return $keys;
  62         }
  63 }
  64