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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id: CacheApc.class.php 2728 2012-02-12 04:12:51Z liu21st $
/**
+-------------------------------
* Apc缓存驱动类
+-------------------------------
*/
class CacheApc extends Cache {
/**
+----------------------------------------------------------
* 架构函数
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
*/
public function __construct($options='') {
if(!function_exists('apc_cache_info')) {
throw_exception(L('_NOT_SUPPERT_').':Apc');
}
if(!empty($options)) {
$this->options = $options;
}
$this->options['expire'] = isset($options['expire'])?$options['expire']:C('DATA_CACHE_TIME');
$this->options['length'] = isset($options['length'])?$options['length']:0;
}
/**
+----------------------------------------------------------
* 读取缓存
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $name 缓存变量名
+----------------------------------------------------------
* @return mixed
+----------------------------------------------------------
*/
public function get($name) {
N('cache_read',1);
return apc_fetch($name);
}
/**
+----------------------------------------------------------
* 写入缓存
*
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $name 缓存变量名
* @param mixed $value 存储数据
* @param integer $expire 有效时间（秒）
+----------------------------------------------------------
* @return boolen
+----------------------------------------------------------
*/
public function set($name, $value, $expire = null) {
N('cache_write',1);
if(is_null($expire)) {
$expire = $this->options['expire'];
}
if($result = apc_store($name, $value, $expire)) {
if($this->options['length']>0) {
// 记录缓存队列
$this->queue($name);
}
}
return $result;
}
/**
+----------------------------------------------------------
* 删除缓存
*
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $name 缓存变量名
+----------------------------------------------------------
* @return boolen
+----------------------------------------------------------
*/
public function rm($name) {
return apc_delete($name);
}
/**
+----------------------------------------------------------
* 清除缓存
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return boolen
+----------------------------------------------------------
*/
public function clear() {
return apc_clear_cache();
}
}
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