优化 FileCache

readme/changelog.txt

@@ -1,11 +1,11 @@
-+======================================+
++======================================+
    Discuz! X3.3 Release 20170210
 +======================================+
 兼容 PHP7
 优化 SQL查询
 修复 安全问题
 优化 优化缓存机制改为扩展形式，可自由扩展
-新增 APCu、Yac缓存
+新增 APCu、Yac、File缓存
 
 +--------------------------------------+
 往日版本( Old Version )

upload/config/config_global_default.php

@@ -117,6 +117,7 @@ $_config['memory']['xcache'] = 0;						// 启动对 xcache 的支持
 $_config['memory']['eaccelerator'] = 0;					// 启动对 eaccelerator 的支持
 $_config['memory']['wincache'] = 0;						// 启动对 wincache 的支持
 $_config['memory']['yac'] = 0;     						//启动对 YAC 的支持
+$_config['memory']['file']['server'] = 'data/cache/filecache';				// 启动对 File 缓存的支持
 // 服务器相关设置
 $_config['server']['id']		= 1;			// 服务器编号，多webserver的时候，用于标识当前服务器的ID
 

upload/source/class/memory/memory_driver_file.php

@@ -0,0 +1,119 @@
+<?php
+
+/**
+ *      [Discuz!] (C)2001-2099 Comsenz Inc.
+ *      This is NOT a freeware, use is subject to license terms
+ *
+ *      $Id: memory_driver_yac.php 27635 2017-02-02 17:02:46Z NaiXiaoxIN $
+ */
+if (!defined('IN_DISCUZ')) {
+	exit('Access Denied');
+}
+
+class memory_driver_file {
+
+	public $cacheName = 'File';
+	public $enable;
+	public $path;
+	public $cacheData;
+
+	public function env() {
+		return true;
+	}
+
+	public function init($config) {
+		$this->path = $config['server'].'/';
+		if($config['server']) {
+			$this->enable = is_dir(DISCUZ_ROOT.$this->path);
+			if(!$this->enable) {
+				dmkdir(DISCUZ_ROOT.$this->path);
+				$this->enable = is_dir(DISCUZ_ROOT.$this->path);
+			}
+		} else {
+			$this->enable = false;
+		}
+	}
+	
+	private function cachefile($key) {
+		return str_replace('_', '/', $key).'/'.$key;
+	}
+	
+	private function _get($key) {
+		$file = DISCUZ_ROOT.$this->path.$this->cachefile($key).'.php';
+		if(!file_exists($file)) {			
+			return false;
+		}
+		$data = null;
+		@include_once $file;
+		if($data !== null) {
+			if($data['exp'] && $data['exp'] < TIMESTAMP) {		
+				return false;
+			} else {
+				return $data['data'];
+			}
+		} else {
+			return false;
+		}
+	}
+	
+	public function get($key) {
+		if(!isset($this->cacheData[$key])) {
+			$this->cacheData[$key] = $this->_get($key);
+		}
+		return $this->cacheData[$key];
+	}
+
+	public function set($key, $value, $ttl = 0) {
+		$file = DISCUZ_ROOT.$this->path.$this->cachefile($key).'.php';
+		dmkdir(dirname($file));
+		$data = array(
+		    'exp' => $ttl ? TIMESTAMP + $ttl : 0,
+		    'data' => $value,
+		);
+		file_put_contents($file, "<?php\n\$data = ".var_export($data, 1).";\n");
+		$this->cacheData[$key] = $value;
+		return true;
+	}
+
+	public function rm($key) {
+		return @unlink(DISCUZ_ROOT.$this->path.$this->cachefile($key));
+	}
+	
+	private function dir_clear($dir) {		
+		if($directory = @dir($dir)) {
+			while($entry = $directory->read()) {
+				$filename = $dir.'/'.$entry;
+				if($entry != '.' && $entry != '..') {
+					if(is_file($filename)) {
+						@unlink($filename);
+					} else {
+						$this->dir_clear($filename);
+						@rmdir($filename);
+					}
+				}
+			}
+			$directory->close();			
+		}
+	}
+
+	public function clear() {
+		return $this->dir_clear(DISCUZ_ROOT.$this->path);
+	}
+
+	public function inc($key, $step = 1) {
+		$old = $this->get($key);
+		if (!$old) {
+			return false;
+		}
+		return $this->set($key, $old + $step);
+	}
+
+	public function dec($key, $step = 1) {
+		$old = $this->get($key);
+		if (!$old) {
+			return false;
+		}
+		return $this->set($key, $old - $step);
+	}
+
+}