update trunk and tag 1.4.2.0

git-svn-id: http://xe-core.googlecode.com/svn/trunk@7470 201d5d3c-b55e-5fd7-737f-ddc643e51545

classes/cache/CacheApc.class.php

@@ -0,0 +1,72 @@
+<?php
+    /**
+     * @class CacheApc
+     * @author sol (sol@nhn.com)
+     * @brief APC Handler
+     * @version 0.1
+	 *
+     **/
+
+
+	class CacheApc extends CacheBase {
+		var $valid_time = 36000;
+
+		function getInstance($opt=null){
+            if(!$GLOBALS['__CacheApc__']) {
+                $GLOBALS['__CacheApc__'] = new CacheApc();
+            }
+            return $GLOBALS['__CacheApc__'];
+		}
+
+		function CacheApc(){
+		}
+
+		function isSupport(){
+			return function_exists('apc_add');
+		}
+
+		function put($key, $buff, $valid_time = 0){
+			if($valid_time == 0) $valid_time = $this->valid_time;
+			return apc_store(md5(_XE_PATH_.$key), array(time(), $buff), $valid_time);
+		}
+
+		function isValid($key, $modified_time = 0) {
+			$_key = md5(_XE_PATH_.$key);
+			$obj = apc_fetch($_key, $success);
+			if(!$success || !is_array($obj)) return false;
+			unset($obj[1]);
+
+			if($modified_time > 0 && $modified_time > $obj[0]) {
+				$this->_delete($_key);
+				return false;
+			}
+			
+			return true;
+		}
+
+		function get($key, $modified_time = 0) {
+			$_key = md5(_XE_PATH_.$key);
+			$obj = apc_fetch($_key, $success);
+			if(!$success || !is_array($obj)) return false;
+
+			if($modified_time > 0 && $modified_time > $obj[0]) {
+				$this->_delete($_key);
+				return false;
+			}
+
+			return $obj[1];
+		}
+
+		function _delete($_key) {
+			$this->put($_key,null,1);
+		}
+
+		function delete($key) {
+			$this->_delete(md5(_XE_PATH_.$key));
+		}
+
+		function truncate() {
+			apc_clear_cache('user');
+		}
+	}
+?>