gistfile1.hrl

-define(ANNOUNCE(Id, Port), {announce, Id, Port}).

handle_info({radio_signal, Ip, Port, ?ANNOUNCE(Id, Port)}, State) ->
  #state{id=MyId} = State,
  case Id of
    MyId -> ignore;
    _ ->
      error_logger:info_msg("Received PING from ~p~n", [Id]),
      clusterl_radio:transmit(Ip, Port, ?ANNOUNCE(Id, Port))
  end,
  {noreply, State};