98 lines
2.4 KiB
PHP
98 lines
2.4 KiB
PHP
<?php
|
|
/**
|
|
* @brief XCache Cache Class
|
|
* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
|
|
* @copyright (c) Invision Power Services, Inc.
|
|
* @license https://www.invisioncommunity.com/legal/standards/
|
|
* @package Invision Community
|
|
* @since 17 Sept 2013
|
|
*/
|
|
|
|
namespace IPS\Data\Cache;
|
|
|
|
/* To prevent PHP errors (extending class does not exist) revealing path */
|
|
if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
|
|
{
|
|
header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* XCache Storage Class
|
|
*/
|
|
class _Xcache extends \IPS\Data\Cache
|
|
{
|
|
/**
|
|
* Server supports this method?
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function supported()
|
|
{
|
|
return \function_exists('xcache_get');
|
|
}
|
|
|
|
/**
|
|
* Abstract Method: Get
|
|
*
|
|
* @param string $key Key
|
|
* @return string Value from the _datastore
|
|
*/
|
|
protected function get( $key )
|
|
{
|
|
if( isset( $this->cache[ $key ] ) )
|
|
{
|
|
\IPS\Log::debug( "Get {$key} from Xcache (already loaded)", 'cache' );
|
|
return $this->cache[ $key ];
|
|
}
|
|
|
|
\IPS\Log::debug( "Get {$key} from Xcache", 'cache' );
|
|
|
|
$this->cache[ $key ] = xcache_get( \IPS\SUITE_UNIQUE_KEY . '_' . $key );
|
|
return $this->cache[ $key ];
|
|
}
|
|
|
|
/**
|
|
* Abstract Method: Set
|
|
*
|
|
* @param string $key Key
|
|
* @param string $value Value
|
|
* @param \IPS\DateTime|NULL $expire Expreation time, or NULL for no expiration
|
|
* @return bool
|
|
*/
|
|
protected function set( $key, $value, \IPS\DateTime $expire = NULL )
|
|
{
|
|
\IPS\Log::debug( "Set {$key} in Xcache", 'cache' );
|
|
return (bool) xcache_set( \IPS\SUITE_UNIQUE_KEY . '_' . $key, $value, $expire ? ( $expire->getTimestamp() - time() ) : 0 );
|
|
}
|
|
|
|
/**
|
|
* Abstract Method: Exists?
|
|
*
|
|
* @param string $key Key
|
|
* @return bool
|
|
*/
|
|
protected function exists( $key )
|
|
{
|
|
if( isset( $this->cache[ $key ] ) )
|
|
{
|
|
\IPS\Log::debug( "Check exists {$key} from Xcache (already loaded)", 'cache' );
|
|
return ( $this->cache[ $key ] === FALSE OR $this->cache[ $key ] === NULL ) ? FALSE : TRUE;
|
|
}
|
|
|
|
\IPS\Log::debug( "Check exists {$key} from Xcache", 'cache' );
|
|
return xcache_isset( \IPS\SUITE_UNIQUE_KEY . '_' . $key );
|
|
}
|
|
|
|
/**
|
|
* Abstract Method: Delete
|
|
*
|
|
* @param string $key Key
|
|
* @return bool
|
|
*/
|
|
protected function delete( $key )
|
|
{
|
|
\IPS\Log::debug( "Delete {$key} from Xcache", 'cache' );
|
|
return (bool) xcache_unset( \IPS\SUITE_UNIQUE_KEY . '_' . $key );
|
|
}
|
|
} |