private async void ProcessStandardMessage (Envelope envelope, Actor actor)
{
Debug.Assert (envelope != null);
Debug.Assert (actor != null);
// We're processing an standard message.
try
{
actor.ExecutionContext = new ExecutionContext
{
EnvelopeProcessor = this,
Message = envelope.Message,
Sender = envelope.Sender,
TaskCompletionSource = envelope.TaskCompletionSource
};
actor.Self.State = ActorStates.Processing;
await actor.ProcessMessage ();
// Sanity checks.
// When we finish processing a message there should be no pending replies.
if (actor.Self.PendingReplies != 0)
{
throw new Exception ($"Actor {actor} has {actor.Self.PendingReplies} pending replies after finishing processing message [{envelope.Message}]");
}
if (actor.ExecutionContext.TaskCompletionSource != null)
{
throw new Exception($"Actor {actor.Self} has not replied to {actor.ExecutionContext.Sender} after processing message [{envelope.Message}]");
}
}
finally
{
// Make sure that we clear the execution context and move back the actor to its mailbox queue.
actor.ExecutionContext = null;
actor.Self.State = ActorStates.Idle;
ActorSystem.EnqueueActorBackToMailbox (envelope.Target.Mailbox, actor);
}
}
private void ProcessInternalMessage (Envelope envelope)
{
Debug.Assert (envelope != null);
// Replies messages
var message = envelope.Message as FinishAsyncResponseMessage;
if (message != null)
{
envelope.Target.PendingReplies--;
message.FinishReplyProcess ();
}
}
