Server communication via async/await?

Question

I want to create Socket message sending via TAP via async/await.

After reading this answer and this one - I decided to create a fully working sample :

So what ha

Answer 1

since you do not wait for the threads to do their work and then call s.Close() the socket will be closed before any traffic is sent out. You would have to either remove the s.Close() call or wait until the calls are complete, for instance via

 Task connect = s.ConnectTaskAsync( "127.0.0.1" , 443);
 connect.Wait(); // you have to connect before trying to send
 Task sendData = s.SendTaskAsync(Encoding.UTF8.GetBytes("hello"));
 sendData.Wait(); // wait for the data to be sent before calling s.Close()

 s.Close();

or you could box it in a method and Wait for that method to complete. The end result is to not call Close before completing the previous calls.

 void Main()
 {
     Socket s = new Socket(SocketType.Stream    , ProtocolType.Tcp);
     Task worker = DoWorkAsync(s);
     worker.Wait();
     s.Close();
     Console.ReadLine();
}

private async Task DoWorkAsync(Socket s){
     await s.ConnectTaskAsync( "127.0.0.1" , 443);
     await s.SendTaskAsync(Encoding.UTF8.GetBytes("hello"));
}