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comp.lang.python

Re: threads (specifically timers) and releasing resources

Alex Hall

3/25/2010 2:39:00 PM

Thanks, this should work.

On 3/25/10, Tim Golden <mail@timgolden.me.uk> wrote:
> On 25/03/2010 02:31, Alex Hall wrote:
>> Okay, I have my program and it has three different modes (there will
>> be more than that). Each mode will have a timer attached to it. If the
>> mode remains active and the timer runs out, a function specific to
>> that mode is called. If that mode is switched away from, however, the
>> timer is canceled and a new timer is created for the mode to which the
>> user just switched.
>
> I assume you're using Python's threading.Timer objects as you'd discussed
> those before. If so, that's basically a threading.Thread in disguise.
> In which case, you're going to have to make sure it cleans up after itself,
> releasing whatever resources it holds.
>
> Python's reference-count semantics and cyclic gc will take care of
> things in the normal way once the timer-thread has completed. But
> you'll have to make sure it completes.
>
>> If the latter, is there a way to completely destroy a thread?
>
> No: in Python, a thread has to self-destruct. This is a relatively
> FAQ and there are quite a few recipes around. Here's an example of
> something which seems to be close to your current needs:
>
> http://code.activestate.com/recipes/464959-resettable-ti...
>
> TJG
> --
> http://mail.python.org/mailman/listinfo/p...
>


--
Have a great day,
Alex (msg sent from GMail website)
mehgcap@gmail.com; http://www.facebook.c...