system/libraries/drivers/Cache/Apc.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * APC-based Cache driver.
   4  *
   5  * $Id: Apc.php 3917 2009-01-21 03:06:22Z zombor $
   6  *
   7  * @package    Cache
   8  * @author     Kohana Team
   9  * @copyright  (c) 2007-2008 Kohana Team
  10  * @license    http://kohanaphp.com/license.html
  11  */
  12 class Cache_Apc_Driver implements Cache_Driver {
  13
  14         public function __construct()
  15         {
  16                 if ( ! extension_loaded('apc'))
  17                         throw new Kohana_Exception('cache.extension_not_loaded', 'apc');
  18         }
  19
  20         public function get($id)
  21         {
  22                 return (($return = apc_fetch($id)) === FALSE) ? NULL : $return;
  23         }
  24
  25         public function set($id, $data, $tags, $lifetime)
  26         {
  27                 count($tags) and Kohana::log('error', 'Cache: tags are unsupported by the APC driver');
  28
  29                 return apc_store($id, $data, $lifetime);
  30         }
  31
  32         public function find($tag)
  33         {
  34                 return FALSE;
  35         }
  36
  37         public function delete($id, $tag = FALSE)
  38         {
  39                 if ($id === TRUE)
  40                         return apc_clear_cache('user');
  41
  42                 if ($tag == FALSE)
  43                         return apc_delete($id);
  44
  45                 return TRUE;
  46         }
  47
  48         public function delete_expired()
  49         {
  50                 return TRUE;
  51         }
  52
  53 } // End Cache APC Driver