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127 行
3.7 KiB
127 行
3.7 KiB
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace Think;
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/**
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* 缓存管理类
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*/
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class Cache {
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/**
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* 操作句柄
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* @var string
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* @access protected
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*/
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protected $handler ;
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/**
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* 缓存连接参数
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* @var integer
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* @access protected
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*/
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protected $options = array();
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/**
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* 连接缓存
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* @access public
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* @param string $type 缓存类型
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* @param array $options 配置数组
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* @return object
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*/
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public function connect($type='',$options=array()) {
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if(empty($type)) $type = C('DATA_CACHE_TYPE');
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$class = strpos($type,'\\')? $type : 'Think\\Cache\\Driver\\'.ucwords(strtolower($type));
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if(class_exists($class))
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$cache = new $class($options);
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else
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E(L('_CACHE_TYPE_INVALID_').':'.$type);
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return $cache;
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}
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/**
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* 取得缓存类实例
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* @static
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* @access public
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* @return mixed
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*/
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static function getInstance($type='',$options=array()) {
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static $_instance = array();
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$guid = $type.to_guid_string($options);
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if(!isset($_instance[$guid])){
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$obj = new Cache();
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$_instance[$guid] = $obj->connect($type,$options);
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}
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return $_instance[$guid];
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}
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public function __get($name) {
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return $this->get($name);
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}
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public function __set($name,$value) {
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return $this->set($name,$value);
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}
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public function __unset($name) {
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$this->rm($name);
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}
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public function setOptions($name,$value) {
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$this->options[$name] = $value;
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}
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public function getOptions($name) {
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return $this->options[$name];
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}
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/**
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* 队列缓存
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* @access protected
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* @param string $key 队列名
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* @return mixed
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*/
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//
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protected function queue($key) {
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static $_handler = array(
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'file' => array('F','F'),
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'xcache'=> array('xcache_get','xcache_set'),
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'apc' => array('apc_fetch','apc_store'),
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);
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$queue = isset($this->options['queue'])?$this->options['queue']:'file';
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$fun = isset($_handler[$queue])?$_handler[$queue]:$_handler['file'];
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$queue_name = isset($this->options['queue_name'])?$this->options['queue_name']:'think_queue';
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$value = $fun[0]($queue_name);
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if(!$value) {
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$value = array();
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}
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// 进列
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if(false===array_search($key, $value)) array_push($value,$key);
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if(count($value) > $this->options['length']) {
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// 出列
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$key = array_shift($value);
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// 删除缓存
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$this->rm($key);
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if(APP_DEBUG){
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//调试模式下，记录出列次数
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N($queue_name.'_out_times',1);
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}
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}
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return $fun[1]($queue_name,$value);
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}
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public function __call($method,$args){
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//调用缓存类型自己的方法
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if(method_exists($this->handler, $method)){
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return call_user_func_array(array($this->handler,$method), $args);
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}else{
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E(__CLASS__.':'.$method.L('_METHOD_NOT_EXIST_'));
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return;
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}
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}
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}
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