private static void CreateUdpClient(int ListenPort, int id)
{
UdpState s = new UdpState();
s.e = new IPEndPoint(IPAddress.Any, ListenPort);
s.u = new UdpClient();
s.id = id;
s.u.Client.ExclusiveAddressUse = false;
s.u.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
s.u.Client.Bind(new IPEndPoint(IPAddress.Any, ListenPort));
Debug.WriteLine($"UDP{id}: Listening for messages on port {ListenPort}");
s.u.BeginReceive(new AsyncCallback(ReceiveCallback), s);
_udpClients.Add(s.u);
}
public static void ReceiveCallback(IAsyncResult ar)
{
UdpState s = (UdpState)(ar.AsyncState);
byte[] receiveBytes = null;
try
{
receiveBytes = s.u.EndReceive(ar, ref s.e);
}
catch { }
try
{
s.u.BeginReceive(new AsyncCallback(ReceiveCallback), s);
}
catch { }
if (receiveBytes == null)
{
return;
}
DataReceived?.Invoke(s.id, Encoding.UTF8.GetString(receiveBytes));
}
