/// <summary>
/// Stop node discovery and interconnection
/// </summary>
private void Stop()
{
if (!_isRunning)
{
return;
}
_loggerDelegate?.Invoke($"Stopping {_name} {_uuid.ToShortString6()}. Publishing beacon on port 0. Removing _beacon and _inbox from poller.");
// Stop broadcast/listen beacon by broadcasting port 0
PublishBeacon(0);
Thread.Sleep(1); // Allow 1 millisecond for beacon to go out
_poller.Remove(_beacon);
_beacon.ReceiveReady -= OnBeaconReady;
_beacon.Unsubscribe();
_beacon.Dispose();
_beacon = null;
// Stop polling on inbox
_poller.Remove(_inbox);
_inbox.ReceiveReady -= OnInboxReady;
_inbox.Dispose();
// Tell the application we are stopping
var msg = new NetMQMessage(3);
msg.Append("STOP");
msg.Append(_uuid.ToByteArray());
msg.Append(_name);
_outbox.SendMultipartMessage(msg);
_isRunning = false;
}
private void OnSubscriberMessage(object sender, NetMQSocketEventArgs e)
{
// we just forward the message to the actor
var message = _subscriber.ReceiveMultipartMessage();
Debug.WriteLine(message);
var topic = message[0].ConvertToString();
if (topic == WelcomeMessage)
{
SubscriberAddress = e.Socket.Options.LastEndpoint;
Debug.WriteLine($"Subsciber Address: {SubscriberAddress}");
_welcomeMessageHandler?.Invoke();
}
else if (topic == HeartbeatMessage)
{
// we got a heartbeat, lets postponed the timer
_timeoutTimer.EnableAndReset();
}
else
{
_shim.SendMultipartMessage(message);
}
}
private void OnSubscriberReady(object sender, NetMQSocketEventArgs e)
{
// we got a new message from the bus
// let's forward everything to the shim
NetMQMessage message = m_subscriber.ReceiveMultipartMessage();
m_shim.SendMultipartMessage(message);
}
private void OnSubscriberMessage(object sender, NetMQSocketEventArgs e)
{
// we just forward the message to the actor
var message = m_subscriber.ReceiveMultipartMessage();
var topic = message[0].ConvertToString();
if (topic == WelcomeMessage)
{
// TODO: disconnection has happend, we might want to get snapshot from server
}
else if (topic == HeartbeatMessage)
{
// we got a heartbeat, lets postponed the timer
m_timeoutTimer.Enable = false;
m_timeoutTimer.Enable = true;
}
else
{
m_shim.SendMultipartMessage(message);
}
}
protected void WriteIngoing(NetMQMessage message)
{
m_messagesPipe.SendMultipartMessage(message);
}
private void OnSubscriberReady(object sender, NetMQSocketEventArgs e)
{
_shim.SendMultipartMessage(_subscriber.ReceiveMultipartMessage());
}
