asynchronous timer events - how to?
fredrik at pythonware.com
Wed Jan 9 18:19:57 CET 2008
Helmut Jarausch wrote:
> I'm using a web server (Karrigell) which is based on the asyncore module.
> I'd like to be able to checkpoint some data (e.g. pickled dictionaries) to disk
> from time to time.
> For that I would need to setup a timer which calls a Python object/function when
> its time interval has expired. While this function is running I need access to
> the variables of the server.
the usual way to do that with asyncore is to add an outer control loop
that calls asyncore.loop with a count argument (or poll directly), and
checks a "task queue" at regular intervals.
but in your case, it's probably easier to set up a cron job that does
a "wget" against your server with a "secret" URL, and have the server do
the checkpointing whenever that URL is fetched.
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