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   1  <?php
   2  /**
   3   * MyBB 1.6
   4   * Copyright 2010 MyBB Group, All Rights Reserved
   5   *
   6   * Website: http://mybb.com
   7   * License: http://mybb.com/about/license
   8   *
   9   * $Id: xcache.php 5297 2010-12-28 22:01:14Z Tomm $
  10   */
  11  
  12  /**
  13   * Xcache Cache Handler
  14   */
  15  class xcacheCacheHandler
  16  {
  17      /**
  18       * Unique identifier representing this copy of MyBB
  19       */
  20      public $unique_id;
  21      
  22  	function xcacheCacheHandler($silent=false)
  23      {
  24          global $mybb;
  25          
  26          if(!function_exists("xcache_get"))
  27          {
  28              // Check if our DB engine is loaded
  29              if(!extension_loaded("XCache"))
  30              {
  31                  // Throw our super awesome cache loading error
  32                  $mybb->trigger_generic_error("xcache_load_error");
  33                  die;
  34              }
  35          }
  36      }
  37  
  38      /**
  39       * Connect and initialize this handler.
  40       *
  41       * @return boolean True if successful, false on failure
  42       */
  43  	function connect()
  44      {
  45          global $mybb;
  46  
  47          // Set a unique identifier for all queries in case other forums on this server also use this cache handler
  48          $this->unique_id = md5(MYBB_ROOT);
  49  
  50          return true;
  51      }
  52      
  53      /**
  54       * Retrieve an item from the cache.
  55       *
  56       * @param string The name of the cache
  57       * @param boolean True if we should do a hard refresh
  58       * @return mixed Cache data if successful, false if failure
  59       */
  60      
  61  	function fetch($name, $hard_refresh=false)
  62      {
  63          if(!xcache_isset($this->unique_id."_".$name))
  64          {
  65              return false;
  66          }
  67          return xcache_get($this->unique_id."_".$name);
  68      }
  69      
  70      /**
  71       * Write an item to the cache.
  72       *
  73       * @param string The name of the cache
  74       * @param mixed The data to write to the cache item
  75       * @return boolean True on success, false on failure
  76       */
  77  	function put($name, $contents)
  78      {
  79          return xcache_set($this->unique_id."_".$name, $contents);
  80      }
  81      
  82      /**
  83       * Delete a cache
  84       *
  85       * @param string The name of the cache
  86       * @return boolean True on success, false on failure
  87       */
  88  	function delete($name)
  89      {
  90          return xcache_set($this->unique_id."_".$name, "", 1);
  91      }
  92      
  93      /**
  94       * Disconnect from the cache
  95       */
  96  	function disconnect()
  97      {
  98          return true;
  99      }
 100      
 101  	function size_of($name)
 102      {
 103          global $lang;
 104          
 105          return $lang->na;
 106      }
 107  }
 108  ?>