public void CheckOpenPortByBeginConnect()
{
var port = ProcessingPort++;
try
{
var timeout = 5000;
var newClient = new TcpClient();
var state = new IsTcpPortOpen
{
MainClient = newClient,
tcpOpen = true
};
IAsyncResult ar = newClient.BeginConnect("trungtvq.ddns.net", port, AsyncCallback, state);
if (ar.AsyncWaitHandle.WaitOne(timeout, false) == false || newClient.Connected == false)
{
//throw new Exception();
return;
}
OpenedPortList.Add(port);
//System.Diagnostics.Debug.WriteLine("Open at" + port);
}
catch
{
System.Diagnostics.Debug.WriteLine("Close at" + port);
}
}
public TcpClient Connect(string hostName, int port, int timeout)
{
var newClient = new TcpClient();
var state = new IsTcpPortOpen
{
MainClient = newClient,
tcpOpen = true
};
IAsyncResult ar = newClient.BeginConnect(hostName, port, AsyncCallback, state);
state.tcpOpen = ar.AsyncWaitHandle.WaitOne(timeout, false);
if (state.tcpOpen == false || newClient.Connected == false)
{
System.Diagnostics.Debug.WriteLine("tao nem");
throw new Exception();
}
return(newClient);
}
