public Task ConnectedAsync(IContext context)
{
switch (context.Message)
{
case RemoteTerminate msg:
{
if (_watched.TryGetValue(msg.Watcher.Id, out var pidSet))
{
pidSet.Remove(msg.Watchee);
if (pidSet.Count == 0)
{
_watched.Remove(msg.Watcher.Id);
}
}
//create a terminated event for the Watched actor
var t = new Terminated
{
Who = msg.Watchee
};
//send the address Terminated event to the Watcher
msg.Watcher.SendSystemMessage(t);
break;
}
case EndpointTerminatedEvent _:
{
_logger.LogDebug($"Handle terminated address {_address}");
foreach (var(id, pidSet) in _watched)
{
var watcherPid = new PID(ProcessRegistry.Instance.Address, id);
var watcherRef = ProcessRegistry.Instance.Get(watcherPid);
if (watcherRef != DeadLetterProcess.Instance)
{
foreach (var pid in pidSet)
{
//create a terminated event for the Watched actor
var t = new Terminated
{
Who = pid,
AddressTerminated = true
};
//send the address Terminated event to the Watcher
watcherPid.SendSystemMessage(t);
}
}
}
_watched.Clear();
_behavior.Become(TerminatedAsync);
context.Self.Stop();
break;
}
case RemoteUnwatch msg:
{
if (_watched.TryGetValue(msg.Watcher.Id, out var pidSet))
{
pidSet.Remove(msg.Watchee);
if (pidSet.Count == 0)
{
_watched.Remove(msg.Watcher.Id);
}
}
var w = new Unwatch(msg.Watcher);
Remote.SendMessage(msg.Watchee, w, -1);
break;
}
case RemoteWatch msg:
{
if (_watched.TryGetValue(msg.Watcher.Id, out var pidSet))
{
pidSet.Add(msg.Watchee);
}
else
{
_watched[msg.Watcher.Id] = new HashSet <PID> {
msg.Watchee
};
}
var w = new Watch(msg.Watcher);
Remote.SendMessage(msg.Watchee, w, -1);
break;
}
case Stopped _:
{
_logger.LogDebug($"Stopped EndpointWatcher at {_address}");
break;
}
}
return(Actor.Done);
}