On Wed, 2005-04-20 at 04:38 -0700, Joachim Boomberschloss wrote:

Hi,

There was a discussion here recently about registering a callback to be called prior to shutdown (using addSystemEventTrigger), and I just wanted to ask, what does Twisted allow before shutdown, and what gets stopped in the middle; ex. if I want to do something prior to shutdown that involves communication with some server, and hence a deffered chain, how do I make sure that it gets a chance to happen?

You can return a Deferred from your shutdown function and Twisted will wait until it's got a result before shutting down.

On Wed, 2005-04-20 at 04:38 -0700, Joachim Boomberschloss wrote:

Hi,

There was a discussion here recently about registering a callback to be called prior to shutdown (using addSystemEventTrigger), and I just wanted to ask, what does Twisted allow before shutdown, and what gets stopped in the middle; ex. if I want to do something prior to shutdown that involves communication with some server, and hence a deffered chain, how do I make sure that it gets a chance to happen?

You can return a Deferred from your shutdown function and Twisted will wait until it's got a result before shutting down.