Setup another session to handle wheel run, and use $_[SENDER] to reply back if the client is still connected.
-- David Davis Perl Programmer http://teknikill.net/ Try CPAN Suggest! http://cpan.teknikill.net/ On Wed, 26 Jan 2005 19:43:15 +0100, Bas A. Schulte <[EMAIL PROTECTED]> wrote: > Hi all, > > I have a conceptual question about POE and it's sessions that I have > some trouble with. > > I'm trying to write a POE::Component::Server::TCP server that reads > command lines from the client (well, not really, in reality it's some > sort of reference that gets fed to another application on it's command > line), then needs to execute that command, and respond with feedback > that the process was started. The new process will run for quite some > time, whilst the client will disconnect before that. > > In short: clients logs in on some port, says "launch b", then a process > "launch" is exec-ed using POE::Wheel::RUN, and that child is monitored > by the main session. > > My simple initial approach was this: > > my $server = new POE::Component::Server::TCP( > Alias => "lala", > Port => 6666, > ClientInput => \&client_input, > ); > > $poe_kernel->run(); > > sub client_input > { > my ($input) = @_[ ARG0 ]; > > ... > > my $child = new POE::Wheel::Run( > > Program => $input, ## Not recommended :) > > ... > > StdoutEvent => 'session_stdout', > > ... > ); > > $heap->{client}->put("Ok, I started $input for you successfully"); > } > > This doesn't work: the 'StdoutEvent' event is posted to the session > that's running client_input (session created by > POE::Component::Server::TCP for this connection). > > How am I supposed to handle this? > > Right now, I validate the client input, then put the request to start on > a queue that I check in another session. This works but it won't report > back a failure to launch the process to the client. For example, when > the process to launch is a perl script that fails to compile or > something. > > Maybe I need to put the request to start on the queue, AND somehow add > the client session reference to it as well, and respond back from my > main session instead of directly in client_input? > > I'm somewhat confused right now, hope someone can clear this one up :) > > Thanks in advance, > > Bas. >
