/lib/Cake/Cache/Engine/ApcEngine.php - アノテート - pictcode - Redmine

pictcode / lib / Cake / Cache / Engine / ApcEngine.php @ 0b1b8047

-eef61
+<?php
 /**
  * APC storage engine for cache.
+ *
  * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
  * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
  * Licensed under The MIT License
  * For full copyright and license information, please see the LICENSE.txt
  * Redistributions of files must retain the above copyright notice.
+ *
  * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
  * @link          http://cakephp.org CakePHP(tm) Project
  * @package       Cake.Cache.Engine
  * @since         CakePHP(tm) v 1.2.0.4933
  * @license       http://www.opensource.org/licenses/mit-license.php MIT License
  */
 /**
  * APC storage engine for cache
+ *
  * @package       Cake.Cache.Engine
  */
 class ApcEngine extends CacheEngine {
 /**
  * Contains the compiled group names
  * (prefixed with the global configuration prefix)
+ *
  * @var array
  */
         protected $_compiledGroupNames = array();
 /**
  * Initialize the Cache Engine
+ *
  * Called automatically by the cache frontend
  * To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());
+ *
  * @param array $settings array of setting for the engine
  * @return bool True if the engine has been successfully initialized, false if not
  * @see CacheEngine::__defaults
  */
         public function init($settings = array()) {
                 if (!isset($settings['prefix'])) {
                         $settings['prefix'] = Inflector::slug(APP_DIR) . '_';
+                }
                 $settings += array('engine' => 'Apc');
                 parent::init($settings);
                 return function_exists('apc_dec');
+        }
 /**
  * Write data for key into cache
+ *
  * @param string $key Identifier for the data
  * @param mixed $value Data to be cached
  * @param int $duration How long to cache the data, in seconds
  * @return bool True if the data was successfully cached, false on failure
  */
         public function write($key, $value, $duration) {
                 $expires = 0;
                 if ($duration) {
                         $expires = time() + $duration;
+                }
                 apc_store($key . '_expires', $expires, $duration);
                 return apc_store($key, $value, $duration);
+        }
 /**
  * Read a key from the cache
+ *
  * @param string $key Identifier for the data
  * @return mixed The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
  */
         public function read($key) {
                 $time = time();
                 $cachetime = (int)apc_fetch($key . '_expires');
                 if ($cachetime !== 0 && ($cachetime < $time || ($time + $this->settings['duration']) < $cachetime)) {
                         return false;
+                }
                 return apc_fetch($key);
+        }
 /**
  * Increments the value of an integer cached key
+ *
  * @param string $key Identifier for the data
  * @param int $offset How much to increment
  * @return New incremented value, false otherwise
  */
         public function increment($key, $offset = 1) {
                 return apc_inc($key, $offset);
+        }
 /**
  * Decrements the value of an integer cached key
+ *
  * @param string $key Identifier for the data
  * @param int $offset How much to subtract
  * @return New decremented value, false otherwise
  */
         public function decrement($key, $offset = 1) {
                 return apc_dec($key, $offset);
+        }
 /**
  * Delete a key from the cache
+ *
  * @param string $key Identifier for the data
  * @return bool True if the value was successfully deleted, false if it didn't exist or couldn't be removed
  */
         public function delete($key) {
                 return apc_delete($key);
+        }
 /**
  * Delete all keys from the cache. This will clear every cache config using APC.
+ *
  * @param bool $check If true, nothing will be cleared, as entries are removed
  *    from APC as they expired. This flag is really only used by FileEngine.
  * @return bool True Returns true.
  */
         public function clear($check) {
                 if ($check) {
                         return true;
+                }
                 if (class_exists('APCIterator', false)) {
                         $iterator = new APCIterator(
                                 'user',
                                 '/^' . preg_quote($this->settings['prefix'], '/') . '/',
                                 APC_ITER_NONE
                         );
                         apc_delete($iterator);
                         return true;
+                }
                 $cache = apc_cache_info('user');
                 foreach ($cache['cache_list'] as $key) {
                         if (strpos($key['info'], $this->settings['prefix']) === 0) {
                                 apc_delete($key['info']);
+                        }
+                }
                 return true;
+        }
 /**
  * Returns the `group value` for each of the configured groups
  * If the group initial value was not found, then it initializes
  * the group accordingly.
+ *
  * @return array
  */
         public function groups() {
                 if (empty($this->_compiledGroupNames)) {
                         foreach ($this->settings['groups'] as $group) {
                                 $this->_compiledGroupNames[] = $this->settings['prefix'] . $group;
+                        }
+                }
                 $groups = apc_fetch($this->_compiledGroupNames);
                 if (count($groups) !== count($this->settings['groups'])) {
                         foreach ($this->_compiledGroupNames as $group) {
                                 if (!isset($groups[$group])) {
                                         apc_store($group, 1);
                                         $groups[$group] = 1;
+                                }
+                        }
                         ksort($groups);
+                }
                 $result = array();
                 $groups = array_values($groups);
                 foreach ($this->settings['groups'] as $i => $group) {
                         $result[] = $group . $groups[$i];
+                }
                 return $result;
+        }
 /**
  * Increments the group value to simulate deletion of all keys under a group
  * old values will remain in storage until they expire.
+ *
  * @param string $group The group to clear.
  * @return bool success
  */
         public function clearGroup($group) {
                 apc_inc($this->settings['prefix'] . $group, 1, $success);
                 return $success;
+        }
+}