public void Open()
{
if (_opened.CheckAndSet())
{
return;
}
_listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_listenSocket.Bind(new IPEndPoint(IPAddressHelper.ParseIPAddress("localhost"), 12345));
_listenSocket.Listen(1);
_listenThread = new Thread(Listen);
_listenThread.Start();
}