xbt_dict_foreach(storage_list,cursor,mount_name,storage_name){
storage = static_cast<msg_storage_t>(xbt_lib_get_elm_or_null(storage_lib,storage_name));
xbt_dict_foreach(storage_list,cursor,mount_name,storage_name){
storage = static_cast<msg_storage_t>(xbt_lib_get_elm_or_null(storage_lib,storage_name));