/// <summary>
/// Creates the bbmd mac address
/// </summary>
private void _createBbmdMac()
{
var bbmdIps = Dns.GetHostAddresses(_options.BbmdHost);
if (bbmdIps.Length == 0)
{
throw new Exception("Could not resolve '" + _options.BbmdHost + "'");
}
var bbmdEp = new IPEndPoint(bbmdIps[0], _options.BbmdPort);
_bbmdMac = IPUtils.IPEndPointToMac(bbmdEp);
}
/// <summary>
/// Called whenever a datagram is received
/// </summary>
/// <param name="ep">The IPEndPoint of the sending device</param>
/// <param name="buffer">The buffer containing the datagram</param>
/// <param name="length">The length of the received datagram</param>
/// <returns>The inbound netgram to propagate, if any</returns>
private void _onDatagramReceived(IPEndPoint ep, byte[] buffer, int length)
{
int offset = 0;
BvlcHeader header = null;
IBvlcMessage message = null;
NetgramReceivedMessage netgram = null;
Mac mac = IPUtils.IPEndPointToMac(ep);
try
{
if (length < 4)
{
throw new Exception("Received datagram under 4 bytes long");
}
header = new BvlcHeader();
offset = header.Deserialize(buffer, offset);
if (header.Length != length)
{
throw new Exception("Received bvlc datagram with non-matching lengths");
}
message = _createMessage(header.Function);
offset = message.Deserialize(buffer, offset);
lock (_lock)
{
netgram = _processMessage(mac, message, buffer, offset, length);
}
if (netgram != null && Session != null)
{
Session.QueueMessage(netgram);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}