125 lines
4.0 KiB
PHP
125 lines
4.0 KiB
PHP
<?php
|
|
/**
|
|
* StatusNet - the distributed open-source microblogging tool
|
|
* Copyright (C) 2009, StatusNet, Inc.
|
|
*
|
|
* Plugin to implement cache interface for XCache variable cache
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* @category Cache
|
|
* @package StatusNet
|
|
* @author Evan Prodromou <evan@status.net>
|
|
* @copyright 2009 StatusNet, Inc.
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
|
|
if (!defined('STATUSNET')) {
|
|
// This check helps protect against security problems;
|
|
// your code file can't be executed directly from the web.
|
|
exit(1);
|
|
}
|
|
|
|
/**
|
|
* A plugin to use XCache's variable cache for the cache interface
|
|
*
|
|
* New plugin interface lets us use alternative cache systems
|
|
* for caching. This one uses XCache's variable cache.
|
|
*
|
|
* @category Cache
|
|
* @package StatusNet
|
|
* @author Evan Prodromou <evan@status.net>
|
|
* @copyright 2009 StatusNet, Inc.
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
|
|
class XCachePlugin extends Plugin
|
|
{
|
|
/**
|
|
* Get a value associated with a key
|
|
*
|
|
* The value should have been set previously.
|
|
*
|
|
* @param string &$key in; Lookup key
|
|
* @param mixed &$value out; value associated with key
|
|
*
|
|
* @return boolean hook success
|
|
*/
|
|
|
|
function onStartCacheGet(&$key, &$value)
|
|
{
|
|
if (!xcache_isset($key)) {
|
|
$value = false;
|
|
} else {
|
|
$value = xcache_get($key);
|
|
$value = unserialize($value);
|
|
}
|
|
Event::handle('EndCacheGet', array($key, &$value));
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Associate a value with a key
|
|
*
|
|
* @param string &$key in; Key to use for lookups
|
|
* @param mixed &$value in; Value to associate
|
|
* @param integer &$flag in; Flag (passed through to Memcache)
|
|
* @param integer &$expiry in; Expiry (passed through to Memcache)
|
|
* @param boolean &$success out; Whether the set was successful
|
|
*
|
|
* @return boolean hook success
|
|
*/
|
|
|
|
function onStartCacheSet(&$key, &$value, &$flag, &$expiry, &$success)
|
|
{
|
|
$success = xcache_set($key, serialize($value));
|
|
|
|
Event::handle('EndCacheSet', array($key, $value, $flag,
|
|
$expiry));
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete a value associated with a key
|
|
*
|
|
* @param string &$key in; Key to lookup
|
|
* @param boolean &$success out; whether it worked
|
|
*
|
|
* @return boolean hook success
|
|
*/
|
|
|
|
function onStartCacheDelete(&$key, &$success)
|
|
{
|
|
$success = xcache_unset($key);
|
|
Event::handle('EndCacheDelete', array($key));
|
|
return false;
|
|
}
|
|
|
|
function onPluginVersion(&$versions)
|
|
{
|
|
$versions[] = array('name' => 'XCache',
|
|
'version' => STATUSNET_VERSION,
|
|
'author' => 'Craig Andrews',
|
|
'homepage' => 'http://status.net/wiki/Plugin:XCache',
|
|
'rawdescription' =>
|
|
// TRANS: Plugin description.
|
|
_m('Use the <a href="http://xcache.lighttpd.net/">XCache</a> variable cache to cache query results.'));
|
|
return true;
|
|
}
|
|
}
|