[Twisted-Python] PB - detecting loss of connection

[Itamar Shtull-Trauring]

aReferenceable.broker.notifyOnDisconnect(f)

f() will now be called on disconnect, aReferenceable the result of
getObjectAt() or any call that returns a RemoteReference.

-- 
Itamar Shtull-Trauring    http://itamarst.org/
http://www.zoteca.com -- Python & Twisted consulting