twisted: catch keyboardinterrupt and shutdown properly

Question

UPDATE: For ease of reading, here is how to add a callback before the reactor gets shutdown:

reactor.addSystemEventTrigger(\'before\', \'shutdown\', callable)
         


        

Answer 1

I'm not sure whether you talking about a client or a server that you've written.

Anyway, nothing wrong with 'CTRL-C'.

If you're writing a server as an Application. Subclass from twisted.application.service.Service and define startService and stopService. Maintain a list of active protocol instances. Use stopService to go through them and close them gracefully.

If you've got a client, you could also subclass Service, but it could be simpler to use reactor.addSystemEventTrigger('before','shutdown',myCleanUpFunction), and close connection(s) gracefully in this function.