<?php /** * Lock backend singleton handling. */ class Redis_Lock { /** * @var Redis_Lock_BackendInterface */ private static $instance; /** * Get actual lock backend. * * @return Redis_Lock_BackendInterface */ public static function getBackend() { if (!isset(self::$instance)) { $className = Redis_Client::getClass(Redis_Client::REDIS_IMPL_LOCK); self::$instance = new $className( Redis_Client::getClient(), Redis_Client::getDefaultPrefix('lock') ); } return self::$instance; } }