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124 lines
3.6 KiB
124 lines
3.6 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\Cache\Driver;
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use Think\Cache;
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defined('THINK_PATH') or exit();
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/**
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* Apachenote缓存驱动
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*/
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class Apachenote extends Cache {
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/**
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* 架构函数
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* @param array $options 缓存参数
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* @access public
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*/
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public function __construct($options=array()) {
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if(!empty($options)) {
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$this->options = $options;
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}
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if(empty($options)) {
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$options = array (
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'host' => '127.0.0.1',
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'port' => 1042,
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'timeout' => 10,
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);
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}
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$this->options = $options;
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$this->options['prefix'] = isset($options['prefix'])? $options['prefix'] : C('DATA_CACHE_PREFIX');
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$this->options['length'] = isset($options['length'])? $options['length'] : 0;
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$this->handler = null;
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$this->open();
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}
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/**
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* 读取缓存
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* @access public
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* @param string $name 缓存变量名
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* @return mixed
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*/
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public function get($name) {
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$this->open();
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$name = $this->options['prefix'].$name;
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$s = 'F' . pack('N', strlen($name)) . $name;
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fwrite($this->handler, $s);
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for ($data = ''; !feof($this->handler);) {
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$data .= fread($this->handler, 4096);
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}
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N('cache_read',1);
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$this->close();
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return $data === '' ? '' : unserialize($data);
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}
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/**
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* 写入缓存
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* @access public
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* @param string $name 缓存变量名
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* @param mixed $value 存储数据
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* @return boolean
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*/
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public function set($name, $value) {
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N('cache_write',1);
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$this->open();
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$value = serialize($value);
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$name = $this->options['prefix'].$name;
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$s = 'S' . pack('NN', strlen($name), strlen($value)) . $name . $value;
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fwrite($this->handler, $s);
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$ret = fgets($this->handler);
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$this->close();
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if($ret === "OK\n") {
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if($this->options['length']>0) {
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// 记录缓存队列
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$this->queue($name);
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}
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return true;
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}
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return false;
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}
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/**
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* 删除缓存
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* @access public
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* @param string $name 缓存变量名
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* @return boolean
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*/
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public function rm($name) {
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$this->open();
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$name = $this->options['prefix'].$name;
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$s = 'D' . pack('N', strlen($name)) . $name;
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fwrite($this->handler, $s);
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$ret = fgets($this->handler);
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$this->close();
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return $ret === "OK\n";
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}
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/**
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* 关闭缓存
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* @access private
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*/
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private function close() {
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fclose($this->handler);
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$this->handler = false;
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}
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/**
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* 打开缓存
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* @access private
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*/
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private function open() {
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if (!is_resource($this->handler)) {
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$this->handler = fsockopen($this->options['host'], $this->options['port'], $_, $_, $this->options['timeout']);
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}
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}
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}
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