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         /**
  31          * @param $key string
  32          * @return mixed
  33          */
  34         public function get( $key ) {
  35                 $val = apc_fetch( $key );
  36
  37                 if ( is_string( $val ) ) {
  38                         if ( $this->isInteger( $val ) ) {
  39                                 $val = intval( $val );
  40                         } else {
  41                                 $val = unserialize( $val );
  42                         }
  43                 }
  44
  45                 return $val;
  46         }
  47
  48         /**
  49          * @param $key string
  50          * @param $value mixed
  51          * @param $exptime int
  52          * @return bool
  53          */
  54         public function set( $key, $value, $exptime = 0 ) {
  55                 if ( !$this->isInteger( $value ) ) {
  56                         $value = serialize( $value );
  57                 }
  58
  59                 apc_store( $key, $value, $exptime );
  60
  61                 return true;
  62         }
  63
  64         /**
  65          * @param $key string
  66          * @param $time int
  67          * @return bool
  68          */
  69         public function delete( $key, $time = 0 ) {
  70                 apc_delete( $key );
  71
  72                 return true;
  73         }
  74
  75         public function incr( $key, $value = 1 ) {
  76                 return apc_inc( $key, $value );
  77         }
  78
  79         public function decr( $key, $value = 1 ) {
  80                 return apc_dec( $key, $value );
  81         }
  82
  83         /**
  84          * @return Array
  85          */
  86         public function keys() {
  87                 $info = apc_cache_info( 'user' );
  88                 $list = $info['cache_list'];
  89                 $keys = array();
  90
  91                 foreach ( $list as $entry ) {
  92                         $keys[] = $entry['info'];
  93                 }
  94
  95                 return $keys;
  96         }
  97 }