| <?php /** * * This file is part of the phpBB Forum Software package. * * @copyright (c) phpBB Limited <https://www.phpbb.com> * @license GNU General Public License, version 2 (GPL-2.0) * * For full copyright and license information, please see * the docs/CREDITS.txt file. * */
namespace phpbb\cache\driver;
if (!defined('PHPBB_ACM_MEMCACHED_PORT')) { define('PHPBB_ACM_MEMCACHED_PORT', 11211); }
if (!defined('PHPBB_ACM_MEMCACHED_COMPRESS')) { define('PHPBB_ACM_MEMCACHED_COMPRESS', true); }
if (!defined('PHPBB_ACM_MEMCACHED_HOST')) { define('PHPBB_ACM_MEMCACHED_HOST', 'localhost'); }
if (!defined('PHPBB_ACM_MEMCACHED')) { //can define multiple servers with host1/port1,host2/port2 format define('PHPBB_ACM_MEMCACHED', PHPBB_ACM_MEMCACHED_HOST . '/' . PHPBB_ACM_MEMCACHED_PORT); }
/** * ACM for Memcached */ class memcached extends \phpbb\cache\driver\memory { /** @var string Extension to use */ protected $extension = 'memcached';
/** @var \Memcached Memcached class */ protected $memcached;
/** @var int Flags */ protected $flags = 0;
/** * Memcached constructor */ public function __construct() { // Call the parent constructor parent::__construct();
$this->memcached = new \Memcached(); $this->memcached->setOption(\Memcached::OPT_BINARY_PROTOCOL, true); // Memcached defaults to using compression, disable if we don't want // to use it if (!PHPBB_ACM_MEMCACHED_COMPRESS) { $this->memcached->setOption(\Memcached::OPT_COMPRESSION, false); }
foreach (explode(',', PHPBB_ACM_MEMCACHE) as $u) { preg_match('#(.*)/(\d+)#', $u, $parts); $this->memcached->addServer(trim($parts[1]), (int) trim($parts[2])); } }
/** * {@inheritDoc} */ public function unload() { parent::unload();
unset($this->memcached); }
/** * {@inheritDoc} */ public function purge() { $this->memcached->flush();
parent::purge(); }
/** * Fetch an item from the cache * * @param string $var Cache key * * @return mixed Cached data */ protected function _read($var) { return $this->memcached->get($this->key_prefix . $var); }
/** * Store data in the cache * * @param string $var Cache key * @param mixed $data Data to store * @param int $ttl Time-to-live of cached data * @return bool True if the operation succeeded */ protected function _write($var, $data, $ttl = 2592000) { if (!$this->memcached->replace($this->key_prefix . $var, $data, $ttl)) { return $this->memcached->set($this->key_prefix . $var, $data, $ttl); } return true; }
/** * Remove an item from the cache * * @param string $var Cache key * @return bool True if the operation succeeded */ protected function _delete($var) { return $this->memcached->delete($this->key_prefix . $var); } }
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