Add cache for getStorage and getInternalPath functions.

These are called for almost every file operation.

lib/filesystemview.php

@@ -23,6 +23,8 @@
 
 class OC_FilesystemView {
 	private $fakeRoot='';
+	private $internal_path_cache=array();
+	private $storage_cache=array();
 
 	public function __construct($root){
 		$this->fakeRoot=$root;
@@ -67,7 +69,10 @@ class OC_FilesystemView {
 	* @return bool
 	*/
 	public function getInternalPath($path){
-		return OC_Filesystem::getInternalPath($this->getAbsolutePath($path));
+		if (!isset($this->internal_path_cache[$path])) {
+			$this->internal_path_cache[$path] = OC_Filesystem::getInternalPath($this->getAbsolutePath($path));
+		}
+		return $this->internal_path_cache[$path];
 	}
 	/**
 	* get the storage object for a path
@@ -75,7 +80,10 @@ class OC_FilesystemView {
 	* @return OC_Filestorage
 	*/
 	public function getStorage($path){
-		return OC_Filesystem::getStorage($this->getAbsolutePath($path));
+		if (!isset($this->storage_cache[$path])) {
+			$this->storage_cache[$path] = OC_Filesystem::getStorage($this->getAbsolutePath($path));
+		}
+		return $this->storage_cache[$path];
 	}
 
 	/**