Displaying messages in a remote node IO

Vladimir Sekissov <>
Fri Dec 20 22:22:17 CET 2002


Good day,

As in Unix all IO is sent to group leader process.

There is a trick I've got from:

http://www.erlang.org/ml-archive/erlang-questions/200205/msg00004.html

If we on Node2:

RP = rpc:call(Node1,erlang,list_to_pid,["<0.0.0>"]),
erlang:group_leader(RP,self()),               
io:format("Hello World !\n").

and all output from your process will be redirected to Node1.

Best Regards,
Vladimir Sekissov

erlang> 
erlang> Thank you for all your responses.
erlang> 
erlang> I have started the code below in Node 1.
erlang> I'd like to send a message from Node 2 to Node 1 and display it in Node 1
erlang> I don't figure out what should I modify in this code to do this.
erlang> 
erlang> %%%%%%%%%%%%%%%%
erlang> 
erlang> -module(logger).
erlang> -export([start/0, stop/0]).
erlang> 
erlang> 
erlang> start() ->
erlang>     spawn(fun() -> init() end).
erlang> 
erlang> stop() ->
erlang>     logger ! {stop, self()}.
erlang>     
erlang> init() ->
erlang>     register(logger, self()),
erlang>     process_flag(trap_exit, true),
erlang>     loop().
erlang> 
erlang> loop() ->
erlang>     receive
erlang>  {call, Caller, Msg} ->
erlang>       {self(), sender, Msg},
erlang>       io:format('Logger closed ~w ~n', Msg)
erlang>       loop();
erlang>  {stop, Caller} ->
erlang>       io:format('Logger closed ~n'),
erlang>      exit(normal)
erlang>     end.
erlang> 
erlang> %%%%%%%%%%%%
erlang>  
erlang> Thanks,
erlang> Eduardo Figoli
erlang> INSwitch Solutions
erlang>  
erlang> 
erlang>  
erlang> 



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