class documentation

An asyncnotifier that can survive errors in the callbacks.

We define this as a separate class, since we don't want to make AsyncNotifier diverge from what we contributed upstream.

Inherited from AsyncNotifier:

Method __init__ Initializes this class.
Method handle_read Undocumented
Instance Variable fd Undocumented
Instance Variable notifier Undocumented

Inherited from GanetiBaseAsyncoreDispatcher (via AsyncNotifier):

Method handle_error Log an error in handling any request, and proceed.
Method writable Most of the time we don't want to check for writability.