The Next Problem

Previously...

• I identified how to put a new module into the system.
• I experimented with creating a new module.
• I added the new module to the system (after troubleshooting a problem).

At this point, megaphone seems to start up when something tries to connect to the server, but the connection closes immediately.  For the code:

gen_tcp:recv(Socket, 0)

I was getting the result:

{error, closed}

Poking about on the net a bit came up with this article:

http://stackoverflow.com/questions/7054757/help-understanding-error-report

Long story short, the calling erlang process was terminating, which automagically closes all TCP connections associated with it.  The solution was to call:

gen_tcp:controlling_process(Socket, Pid)

Which tells erlang that the process associated with the socket is something different from what it was originally using.

Next step, everything will work.

Magically.

Really.