private static async Task StartTcpClient(string ip, int port)
{
if (_isConnected)
{
return;
}
_isConnected = true;
using (TcpClient client = new TcpClient())
{
try
{
client.ConnectAsync(ip, port).Wait(3000);
}
catch (Exception)
{
_trace.TraceWarning($"Unable to connect, try again later.");
_isConnected = false;
return;
}
using (NetworkStream stream = client.GetStream())
{
_trace.TraceInformation("Username:"******"Failed to send username to server, stopping.");
_isConnected = false;
return;
}
while (true)
{
// read the data to send to the server
_trace.TraceInformation("What to send?");
string line = Console.ReadLine();
// send the text to the server
if (!await _writer.WriteLineAsync(stream, line))
{
break;
}
// read the response of the server
string response = await _reader.ReadLineAsync(stream);
if (response == null)
{
break;
}
_trace.TraceVerbose($"Response from server {response}");
}
}
}
_isConnected = false;
}
private async Task HandleConnection(TcpClient client)
{
_trace.TraceInformation($"New connection from {client.Client.RemoteEndPoint}");
client.ReceiveTimeout = 30;
client.SendTimeout = 30;
try
{
using (NetworkStream stream = client.GetStream())
{
while (true)
{
// read the data from the client
string line = await _reader.ReadLineAsync(stream, false);
// if the data was not read during the retry process then close this client
if (line == null)
{
break;
}
bool commandFound = ProcessPossibleCommand(client, line);
string userName = _clientStore.GetUserName(client);
_trace.TraceInformation($"{userName}: {line}");
// echo back
if (!commandFound)
{
await _writer.WriteLineAsync(stream, line);
}
}
}
}
finally
{
_trace.TraceVerbose("Client connection closed");
client.Close();
string userName = _clientStore.RemoveClient(client);
_trace.TraceInformation($"{userName} disconnected");
}
}