PathResolver Node1 PathResolver   + PathResolver() + find_file() + find_file_from_list() + find_directory() + find_directory_from _list() + find_calib_file() + find_calib_directory() + setOutputLevel() + SetOutputLevel() + FindCalibFile() + FindCalibDirectory() - PR_find() - msgLvl() - msg() - msg() - asgMsg() Node2 std::atomic< MSG::Level > + ptr   Node2->Node1 -m_level