drupal-civicrm/sites/all/modules/civicrm/CRM/Utils/Cache/APCcache.php

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2018-01-14 15:10:16 +02:00
<?php
/*
+--------------------------------------------------------------------+
| CiviCRM version 4.7 |
+--------------------------------------------------------------------+
| Copyright CiviCRM LLC (c) 2004-2017 |
+--------------------------------------------------------------------+
| This file is a part of CiviCRM. |
| |
| CiviCRM is free software; you can copy, modify, and distribute it |
| under the terms of the GNU Affero General Public License |
| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
| |
| CiviCRM is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| See the GNU Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public |
| License and the CiviCRM Licensing Exception along |
| with this program; if not, contact CiviCRM LLC |
| at info[AT]civicrm[DOT]org. If you have questions about the |
| GNU Affero General Public License or the licensing of CiviCRM, |
| see the CiviCRM license FAQ at http://civicrm.org/licensing |
+--------------------------------------------------------------------+
*/
/**
*
* @package CRM
* @copyright CiviCRM LLC (c) 2004-2017
*/
class CRM_Utils_Cache_APCcache implements CRM_Utils_Cache_Interface {
const DEFAULT_TIMEOUT = 3600;
const DEFAULT_PREFIX = '';
/**
* The default timeout to use.
*
* @var int
*/
protected $_timeout = self::DEFAULT_TIMEOUT;
/**
* The prefix prepended to cache keys.
*
* If we are using the same memcache instance for multiple CiviCRM
* installs, we must have a unique prefix for each install to prevent
* the keys from clobbering each other.
*
* @var string
*/
protected $_prefix = self::DEFAULT_PREFIX;
/**
* Constructor.
*
* @param array $config
* An array of configuration params.
*
* @return \CRM_Utils_Cache_APCcache
*/
public function __construct(&$config) {
if (isset($config['timeout'])) {
$this->_timeout = intval($config['timeout']);
}
if (isset($config['prefix'])) {
$this->_prefix = $config['prefix'];
}
}
/**
* @param $key
* @param $value
*
* @return bool
*/
public function set($key, &$value) {
if (!apc_store($this->_prefix . $key, $value, $this->_timeout)) {
return FALSE;
}
return TRUE;
}
/**
* @param $key
*
* @return mixed
*/
public function get($key) {
return apc_fetch($this->_prefix . $key);
}
/**
* @param $key
*
* @return bool|string[]
*/
public function delete($key) {
return apc_delete($this->_prefix . $key);
}
public function flush() {
$allinfo = apc_cache_info('user');
$keys = $allinfo['cache_list'];
$prefix = $this->_prefix . "CRM_"; // Our keys follows this pattern: ([A-Za-z0-9_]+)?CRM_[A-Za-z0-9_]+
$lp = strlen($prefix); // Get prefix length
foreach ($keys as $key) {
$name = $key['info'];
if ($prefix == substr($name, 0, $lp)) {
// Ours?
apc_delete($this->_prefix . $name);
}
}
}
}