freenetis-github/system/libraries/drivers/Cache/Memcache.php @ 5ab3bf57
| 8baed187 | Michal Kliment | <?php defined('SYSPATH') or die('No direct script access.');
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/**
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* Memcache-based Cache driver.
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*
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* @package Cache
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* @author Kohana Team
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* @copyright (c) 2007-2008 Kohana Team
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* @license http://kohanaphp.com/license.html
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*/
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class Cache_Memcache_Driver implements Cache_Driver {
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// Cache backend object and flags
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protected $backend;
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protected $flags;
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public function __construct()
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{
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if ( ! extension_loaded('memcache'))
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throw new Kohana_Exception('cache.extension_not_loaded', 'memcache');
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$this->backend = new Memcache;
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$this->flags = Config::item('cache_memcache.compression') ? MEMCACHE_COMPRESSED : 0;
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foreach (Config::item('cache_memcache.servers') as $server)
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{
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// Make sure all required keys are set
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$server += array('host' => '127.0.0.1', 'port' => 11211, 'persistent' => FALSE);
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// Add the server to the pool
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$this->backend->addServer($server['host'], $server['port'], (bool) $server['persistent'])
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or Log::add('error', 'Cache: Connection failed: '.$server['host']);
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}
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}
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public function find($tag)
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{
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return FALSE;
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}
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public function get($id)
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{
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return $this->backend->get($id);
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}
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public function set($id, $data, $tags, $expiration)
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{
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count($tags) and Log::add('error', 'Cache: Tags are unsupported by the memcache driver');
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return $this->backend->set($id, $data, $this->flags, $expiration);
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}
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public function delete($id, $tag = FALSE)
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{
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if ($id === TRUE)
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{
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return $this->backend->flush();
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}
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elseif ($tag == FALSE)
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{
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return $this->backend->delete($id);
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}
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else
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{
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return TRUE;
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}
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}
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public function delete_expired()
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{
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return TRUE;
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}
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} // End Cache Memcache Driver
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