static void Main(string[] args)
{
var endPoint = new IPEndPoint(IPAddress.Any, serverPort);
var client = new UdpClient(endPoint);
var state = new UdpState
(
client,
endPoint
);
try
{
clients = new List <IPEndPoint>();
client.BeginReceive(new AsyncCallback(ReceiveMessage), state);
Console.WriteLine("Press ESC to stop the server");
while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape))
{
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
client.Close();
client.Dispose();
}
}
public static void ReceiveMessage(IAsyncResult ar)
{
var client = (UdpClient)((UdpState)(ar.AsyncState)).client;
var endPoint = (IPEndPoint)((UdpState)(ar.AsyncState)).endPoint;
var state = new UdpState
(
(UdpClient)((UdpState)(ar.AsyncState)).client,
(IPEndPoint)((UdpState)(ar.AsyncState)).endPoint
);
var receiveBytes = client.EndReceive(ar, ref endPoint);
var receiveString = Encoding.ASCII.GetString(receiveBytes);
if (receiveString == "connect")
{
clients.Add(new IPEndPoint(endPoint.Address, clientPort));
Console.WriteLine("Client Connected.");
}
else
{
//TODO: Spin up a thread to do this so the server doesn't hang.
Console.WriteLine("Client Sent: " + receiveString);
foreach (var clientEndPoint in clients)
{
client.SendAsync(receiveBytes, receiveBytes.Length, clientEndPoint);
}
}
client.BeginReceive(new AsyncCallback(ReceiveMessage), state);
}
public static void ReceiveMessage(IAsyncResult ar)
{
var client = (UdpClient)((UdpState)(ar.AsyncState)).client;
var endPoint = (IPEndPoint)((UdpState)(ar.AsyncState)).endPoint;
var state = new UdpState
(
(UdpClient)((UdpState)(ar.AsyncState)).client,
(IPEndPoint)((UdpState)(ar.AsyncState)).endPoint
);
var receiveBytes = client.EndReceive(ar, ref endPoint);
var receiveString = Encoding.ASCII.GetString(receiveBytes);
Console.WriteLine("Server Says: " + receiveString);
client.BeginReceive(new AsyncCallback(ReceiveMessage), state);
}