add option to only get fast cache

lib/cache.php

@@ -15,24 +15,40 @@ class OC_Cache {
 	 * @var OC_Cache $global_cache
 	 */
 	static protected $global_cache;
+	/**
+	 * @var OC_Cache $global_cache_fast
+	 */
+	static protected $global_cache_fast;
+	/**
+	 * @var OC_Cache $user_cache_fast
+	 */
+	static protected $user_cache_fast;
 	static protected $isFast=null;
 
 	/**
 	 * get the global cache
 	 * @return OC_Cache
 	 */
-	static public function getGlobalCache() {
+	static public function getGlobalCache($fast=false) {
 		if (!self::$global_cache) {
-			$fast_cache = null;
-			if (!$fast_cache && function_exists('xcache_set')) {
-				$fast_cache = new OC_Cache_XCache(true);
+			self::$global_cache_fast = null;
+			if (!self::$global_cache_fast && function_exists('xcache_set')) {
+				self::$global_cache_fast = new OC_Cache_XCache(true);
 			}
-			if (!$fast_cache && function_exists('apc_store')) {
-				$fast_cache = new OC_Cache_APC(true);
+			if (!self::$global_cache_fast && function_exists('apc_store')) {
+				self::$global_cache_fast = new OC_Cache_APC(true);
 			}
+			
 			self::$global_cache = new OC_Cache_FileGlobal();
-			if ($fast_cache) {
-				self::$global_cache = new OC_Cache_Broker($fast_cache, self::$global_cache);
+			if (self::$global_cache_fast) {
+				self::$global_cache = new OC_Cache_Broker(self::$global_cache_fast, self::$global_cache);
+			}
+		}
+		if($fast){
+			if(self::$global_cache_fast){
+				return self::$global_cache_fast;
+			}else{
+				return false;
 			}
 		}
 		return self::$global_cache;
@@ -42,18 +58,27 @@ class OC_Cache {
 	 * get the user cache
 	 * @return OC_Cache
 	 */
-	static public function getUserCache() {
+	static public function getUserCache($fast=false) {
 		if (!self::$user_cache) {
-			$fast_cache = null;
-			if (!$fast_cache && function_exists('xcache_set')) {
-				$fast_cache = new OC_Cache_XCache();
+			self::$user_cache_fast = null;
+			if (!self::$user_cache_fast && function_exists('xcache_set')) {
+				self::$user_cache_fast = new OC_Cache_XCache();
 			}
-			if (!$fast_cache && function_exists('apc_store')) {
-				$fast_cache = new OC_Cache_APC();
+			if (!self::$user_cache_fast && function_exists('apc_store')) {
+				self::$user_cache_fast = new OC_Cache_APC();
 			}
+			
 			self::$user_cache = new OC_Cache_File();
-			if ($fast_cache) {
-				self::$user_cache = new OC_Cache_Broker($fast_cache, self::$user_cache);
+			if (self::$user_cache_fast) {
+				self::$user_cache = new OC_Cache_Broker(self::$user_cache_fast, self::$user_cache);
+			}
+		}
+
+		if($fast){
+			if(self::$user_cache_fast){
+				return self::$user_cache_fast;
+			}else{
+				return false;
 			}
 		}
 		return self::$user_cache;