Sends a one-way asynchronous message.
Sends a one-way asynchronous message. E.g. fire-and-forget semantics.
If invoked from within an actor then the actor reference is implicitly passed on as the implicit 'sender' argument.
This actor 'sender' reference is then available in the receiving actor in the 'sender' member variable, if invoked from within an Actor. If not then no sender is available.
actor ! message
This trait represents the Scala Actor API There are implicit conversions in ../actor/Implicits.scala from ActorRef -> ScalaActorRef and back