Using Asyncore/chat for game server question.

[Jos]

Thanks to Matt Hammond and Jonathan LaCour for getting back to me!

Jonathan sent me some code which took me several days to figure out,
but does _exactly_ what i wanted.

You can find the code he sent (dug out of the medusa distro) here:
http://www.thethirdplace.org/grabbag/pyasynccpl/select_trigger.py

And how i warped it to my needs here:
http://www.thethirdplace.org/grabbag/pyasynccpl/test.py
(please don't laugh at the rough code! :)

Jonathan's original reply, via email, is quoted here with his
permission.

Thanks!
jos

<quote>
I saw your post to comp.lang.python about asyncore and making a bit
more of an "active" process.  The problem with asyncore, as you stated,
is that it "reacts" to events on file descriptors (through
select/poll).  If you have something that occurs in a second thread
that could cause data to be available (ie, sending a "pulse" every
second), you can use some old code from the medusa web server to do
this, which I will attached to this email.

You will need to do something like this (I haven't tested this code):

    from select_trigger import trigger
    from threading import Thread
    import time

    class pulse_thread(Thread):
        def __init__(self, interval, thunk):
            Thread.__init__(self)
            self.trigger = trigger()
            self.thunk = thunk
            self.interval = interval

        def run(self):
            while True:
                self.trigger.pull_trigger(self.thunk)
                time.sleep(self.interval)

The pulse thread will pull the trigger how ever often you like, thus
waking up the asyncore loop for events being fired.  I hope this helps.

  -- Jonathan
</quote>