Monitoring normal actor exit / shutdown

[oschulz]

Is it possible for an actor to react to a regular shutdown (not a
crash)
of another actor (like trapExit and receiving an Exit('normal) /
exit(normal)
message with Scala actors / Erlang)?

Cheers,

Oliver

[Jonas Bonér]

You can register a listener on ActorRegistry which will give send you a message for each actor that is started and stopped. 

From the docs (http://doc.akkasource.org/actors)

If you want to know when a new Actor is added or to or removed from the registry, you can use the subscription API. You can register an Actor that should be notified when an event happens in the ActorRegistry:

def addRegistrationListener(listener: ActorRef)
def removeRegistrationListener(listener: ActorRef)

The messages sent to this Actor are:

case class ActorRegistered(actor: ActorRef)
case class ActorUnregistered(actor: ActorRef)

So your listener Actor needs to be able to handle these two messages. 

Does it help? 

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Jonas Bonér

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