3369   function _readdir_r(dirp, entry, result) {  argument
3372       if (!FS.streams[dirp] || !FS.streams[dirp].object.isFolder) {
3375       var stream = FS.streams[dirp];
3414     }function _readdir(dirp) {  argument
3417       if (!FS.streams[dirp] || !FS.streams[dirp].object.isFolder) {
3422         _readdir_r(dirp, FS.streams[dirp].currentEntry, _readdir.result);
3426           return FS.streams[dirp].currentEntry;
3430   function _closedir(dirp) {  argument
3433       if (!FS.streams[dirp] || !FS.streams[dirp].object.isFolder) {
3436         _free(FS.streams[dirp].currentEntry);
3437         FS.streams[dirp] = null;