[Twisted-Python] Sending a "good-bye message" before closing a connection
exarkun at twistedmatrix.com
exarkun at twistedmatrix.com
Wed Nov 23 05:34:59 MST 2011
On 10:13 am, albert.brandl at weiermayer.com wrote:
>Hi!
>
>On Fri, Nov 18, 2011 at 08:31:18AM -0500, Itamar Turner-Trauring wrote:
>>Presumably there is a method somewhere that decides to close the
>>connection down:
>>
>> def timeToShutdown(self):
>> self.transport.loseConnection()
>
>Actually, I hoped that I'd find such a method in the framework. When
>the
>twistd daemon is shut down, it has to close all connections, and it
>would
>have been nice if there were a hook that could be overridden.
>
>But AFAICT, the respective code is buried inside the BaseConnector
>class,
>and I'd rather leave it alone :-).
>
>Anyway - it should be possible to send some kind of message to the
>daemon
>in the init script before shutting it down.
The shutdown hook provided is IService.stopService. You can add your
custom shutdown logic there, and attach your service to the
Application/Service hierarchy.
Jean-Paul
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