AlkantarClanX12
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<?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.
*/
/**
* 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 W3TCG_Google_Cache_Apc extends W3TCG_Google_Cache_Abstract
{
public function __construct(W3TCG_Google_Client $client)
{
if (! function_exists('apc_add') ) {
throw new W3TCG_Google_Cache_Exception("Apc functions not available");
}
}
/**
* @inheritDoc
*/
public function get($key, $expiration = false)
{
$ret = apc_fetch($key);
if ($ret === false) {
return false;
}
if (is_numeric($expiration) && (time() - $ret['time'] > $expiration)) {
$this->delete($key);
return false;
}
return $ret['data'];
}
/**
* @inheritDoc
*/
public function set($key, $value)
{
$rc = apc_store($key, array('time' => time(), 'data' => $value));
if ($rc == false) {
throw new W3TCG_Google_Cache_Exception("Couldn't store data");
}
}
/**
* @inheritDoc
* @param String $key
*/
public function delete($key)
{
apc_delete($key);
}
}