/// <summary>
/// Handles incoming data on the pipe.
/// Feeds the data into an instance of JsonLineProtocol.
/// Loops over any packets that were decoded and sends them to Command
/// </summary>
private void Recv()
{
var recvBytes = new byte[256];
var proto = new JsonLineProtocol();
Socket.Receive(recvBytes);
var msgs = proto.Feed(Encoding.ASCII.GetString(recvBytes));
foreach (var packet in msgs)
{
try
{
Command(packet);
}
catch (TimeoutException)
{
Socket = null;
OnDisconnect?.Invoke();
throw;
}
catch (SocketException ex)
{
Socket = null;
OnDisconnect?.Invoke();
throw new ConnectionException("Connection is in an error state.", ex);
}
}
}
/// <summary>
/// Listens for Vehicle Broadcasts using UPD broadcasts on specified port using local machine network settings for broardcast IP.
/// Raises on event on vehicle broardcast received
/// </summary>
/// <param name="ep">IP address of interface and port to listen on.</param>
// http://msdn.microsoft.com/en-us/library/tst0kwb1.aspx
public void Run(IPEndPoint ep)
{
_listener = new UdpClient(ep);
var groupEp = new IPEndPoint(IPAddress.Any, ep.Port);
try
{
while (true)
{
// Waiting for broadcast
var bytes = _listener.Receive(ref groupEp);
var msgs = _proto.Feed(Encoding.ASCII.GetString(bytes));
foreach (var received in msgs)
{
try
{
string name = received.name;
ushort connectionPort = received.port;
string video = received.video;
var vehicleIpEndPoint = new IPEndPoint(groupEp.Address, connectionPort);
OnBroadcastReceived?.Invoke(new Broadcast(vehicleIpEndPoint, name, video));
}
catch (RuntimeBinderException) { } // caught a broadcast that is not formatted correctly (not from a vehicle)
}
}
}
catch (SocketException ex)
{
// Thread was killed
if (ex.ErrorCode == 10004)
{
return;
}
throw new Exceptions.ConnectionException("Error in protocol.", ex);
}
}
