sockets client+server with await/async c# 5.0

123456789igor · April 30th, 2014, 09:25 PM

Hello, i try to write a simple asynchronous client/server apps. I know how do it using callback, but i want to invistigate how write client+server using await/async and c# 5.0. Please, help me. It should be simple. Only connect and transfer some bytes.
I know that this can be done using Tasks.
Something like this:

Code:

public static Task ConnectAsync(this Socket socket, EndPoint remoteEP)
        {
            return Task.Factory.FromAsync(socket.BeginConnect, socket.EndConnect, remoteEP, null);
        }

I try to find some examples, but this has no effect.
FYI. without tcplistener and NetworkStream.

123456789igor · May 1st, 2014, 08:58 AM

Connect success. But how to send bytes, i don't know

Code:

private readonly Socket _server;
        public ServerSocket(IPAddress ipAddress, int port)
        {
            _server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            _server.Bind(new IPEndPoint(ipAddress, port));
            _server.Listen(20);
            Console.WriteLine(&quot;Wait connection&quot;);
            Accept();
        }
        private async void Accept()
        {
            for (; ; )
            {
                var socket = await Task.Factory.FromAsync&lt;Socket&gt;(_server.BeginAccept, _server.EndAccept, true);
                Console.WriteLine(&quot;Connected&quot;);
            }
        }