anchor.diff:    gen_tcp:close(Sock),
     reply(From, ok),
     ok;
  -handle_msg(_Msg, State, Debug) ->
  +handle_msg(Msg, State, Debug) ->
  +  error_logger:warning_msg("[~p] ~p got unrecognized message: ~p",
  +                          [?MODULE, self(), Msg]),
     ?MODULE:loop(State, Debug).
   
   safe_send(Pid, Msg) ->
  
positive.code: -spec get_tcp_sock(pid()) -> {ok, port()}.
  get_tcp_sock(Pid) ->
    call(Pid, get_tcp_sock).
  
  %%%_* Internal functions =======================================================
  init(Parent, Host, Port, ClientId, Debug0) ->
  
negative.code:         , start/5
          , start_link/5
          , stop/1
          , debug/2
          ]).
  
  %% system calls support for worker process
  