'After completion, self._state will contain:
pid=None, exit_status=None if autoserv has not yet run
pid!=None, exit_status=None if autoserv is running
pid!=None, exit_status!=None if autoserv has completed'

def _get_pidfile_info(self):

    try:
        self._get_pidfile_info_helper()
    except self._PidfileException:
        self._handle_pidfile_error('Pidfile    error', traceback.format_exc())
