File Content: Apc.php <?php /* * Copyright 2010 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ if (!class_exists('UDP_Google_Client')) { require_once dirname(__FILE__) . '/../autoload.php'; } /** * A persistent storage class based on the APC cache, which is not * really very persistent, as soon as you restart your web server * the storage will be wiped, however for debugging and/or speed * it can be useful, and cache is a lot cheaper then storage. * * @author Chris Chabot <chabotc@google.com> */ class Google_Cache_Apc extends Google_Cache_Abstract { /** * @var Google_Client the current client */ private $client; public function __construct(UDP_Google_Client $client) { if (! function_exists('apc_add') ) { $error = "Apc functions not available"; $client->getLogger()->error($error); throw new Google_Cache_Exception($error); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Error message to be escaped when caught and printed. } $this->client = $client; } /** * @inheritDoc */ public function get($key, $expiration = false) { $ret = apc_fetch($key); if ($ret === false) { $this->client->getLogger()->debug( 'APC cache miss', array('key' => $key) ); return false; } if (is_numeric($expiration) && (time() - $ret['time'] > $expiration)) { $this->client->getLogger()->debug( 'APC cache miss (expired)', array('key' => $key, 'var' => $ret) ); $this->delete($key); return false; } $this->client->getLogger()->debug( 'APC cache hit', array('key' => $key, 'var' => $ret) ); return $ret['data']; } /** * @inheritDoc */ public function set($key, $value) { $var = array('time' => time(), 'data' => $value); $rc = apc_store($key, $var); if ($rc == false) { $this->client->getLogger()->error( 'APC cache set failed', array('key' => $key, 'var' => $var) ); throw new Google_Cache_Exception("Couldn't store data"); } $this->client->getLogger()->debug( 'APC cache set', array('key' => $key, 'var' => $var) ); } /** * @inheritDoc * @param String $key */ public function delete($key) { $this->client->getLogger()->debug( 'APC cache delete', array('key' => $key) ); apc_delete($key); } } Submit