xyzshop/core/framework/libraries/cache.php

<?php
/**
 * 缓存操作
 *
 */
defined('InShopNC') or exit('Access Invalid!');

class Cache 
{
	protected $params;
	protected $enable;
	protected $handler;

	/**
	 * 实例化缓存驱动
	 *
	 * @param unknown_type $type
	 * @param unknown_type $args
	 * @return unknown
	 */
	public function connect($type,$args = array()){
		if (empty($type)) $type = C('cache_open') ? 'redis' : 'file';
		$type = strtolower($type);
		$class = ucwords($type);

		if (!class_exists($class)){
			import('cache.cache#'.$type);
		}
		return new $class($args);
	}

	/**
	 * 取得实例
	 *
	 * @return object
	 */
	public static function getInstance()
    {
        if(defined('USE_COROUTINE') && USE_COROUTINE && defined('COROUTINE_HOOK_TCP') && COROUTINE_HOOK_TCP)
        {
            $args = func_get_args();
            return CoRedisPool::instance()->get($args);
        } else {
            $args = func_get_args();
            return get_obj_instance(__CLASS__, 'connect', $args);
        }
	}
}