xcache caching provider

phpgwapi/inc/class.egw_cache.inc.php

@@ -653,9 +653,11 @@ abstract class egw_cache_provider_check implements egw_cache_provider
 		'egw_cache_memcache' => array('localhost'),
 		'egw_cache_apc' => array(),
 		'egw_cache_files' => array('/tmp'),
+		'egw_cache_xcache' => array(),
 	) as $class => $param)
 	{
 		echo "Checking $class:\n";
+		try {
 			$start = microtime(true);
 			$provider = new $class($param);
 			$n = 100;
@@ -665,4 +667,8 @@ abstract class egw_cache_provider_check implements egw_cache_provider
 			}
 			printf("$failed checks failed, $n iterations took %5.3f sec\n\n", microtime(true)-$start);
 		}
+		catch (Exception $e) {
+			printf($e->getMessage()."\n\n");
+		}
+	}
 }*/

phpgwapi/inc/class.egw_cache_xcache.inc.php

@@ -0,0 +1,90 @@
+<?php
+/**
+ * EGroupware API: Caching provider storing data in PHP's xcache
+ *
+ * @link http://www.egroupware.org
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package api
+ * @subpackage cache
+ * @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
+ * @copyright (c) 2010-12 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
+ * @version $Id$
+ */
+
+/**
+ * Caching provider storing data in PHP's xcache
+ *
+ * The provider concats all $keys with '::' to get a single string.
+ *
+ * To use this provider set in your header.inc.php:
+ * $GLOBALS['egw_info']['server']['cache_provider_instance'] = array('egw_cache_apc');
+ * and optional also $GLOBALS['egw_info']['server']['cache_provider_tree'] (defaults to instance)
+ */
+class egw_cache_xcache extends egw_cache_provider_check implements egw_cache_provider
+{
+	/**
+	 * Constructor, eg. opens the connection to the backend
+	 *
+	 * @throws Exception if connection to backend could not be established
+	 * @param array $params eg. array('localhost'[,'localhost:11211',...])
+	 */
+	function __construct(array $params)
+	{
+		if (!function_exists('xcache_get'))
+		{
+			throw new Exception (__METHOD__.'('.array2string($params).") No function xcache_get()!");
+		}
+		if (PHP_SAPI == 'cli')
+		{
+			throw new Exception (__METHOD__.'('.array2string($params).") xcache does NOT support cli sapi!");
+		}
+	}
+
+	/**
+	 * Stores some data in the cache
+	 *
+	 * @param array $keys eg. array($level,$app,$location)
+	 * @param mixed $data
+	 * @param int $expiration=0
+	 * @return boolean true on success, false on error
+	 */
+	function set(array $keys,$data,$expiration=0)
+	{
+		return xcache_set(self::key($keys),$data,$expiration);
+	}
+
+	/**
+	 * Get some data from the cache
+	 *
+	 * @param array $keys eg. array($level,$app,$location)
+	 * @return mixed data stored or NULL if not found in cache
+	 */
+	function get(array $keys)
+	{
+		$data = xcache_get($key=self::key($keys));
+
+		return $data;
+	}
+
+	/**
+	 * Delete some data from the cache
+	 *
+	 * @param array $keys eg. array($level,$app,$location)
+	 * @return boolean true on success, false on error (eg. $key not set)
+	 */
+	function delete(array $keys)
+	{
+		return xcache_unset(self::key($keys));
+	}
+
+	/**
+	 * Create a single key from $keys
+	 *
+	 * @param array $keys
+	 * @return string
+	 */
+	private function key(array $keys)
+	{
+		return implode('::',$keys);
+	}
+}