public static void ThrowServerException(SocketException e, ServerContext serverContext = null)
{
string ipAddress = serverContext != null ? serverContext.IPAddress.ToString() : "unknown";
string port = serverContext != null ? serverContext.Port.ToString() : "-";
if (ipAddress.Equals("0.0.0.0")) ipAddress = "any";
if (e.Message.StartsWith("Only one usage of each socket address"))
throw new ServerException(
string.Format(
"Can't bind to socket on port {0} for IP addresses ({1}) because it is already in use (is the server already running?)",
port, ipAddress), e);
throw e;
}
// caller should catch socket exceptions
public void Start()
{
try
{
if (_isStopped)
{
_serverContext = new ServerContext {IPAddress = IPAddress.Any, Port = PolicyServerPort};
_listener = new TcpListener(_serverContext.IPAddress, _serverContext.Port);
_listener.Start();
// This call returns immediately; waiting for a client to connect happens on a separate thread
ListenForNewConnection();
_isStopped = false;
Console.WriteLine("start success");
}
}
catch (SocketException e)
{
ServerException.ThrowServerException(e, _serverContext);
}
}