public static int AddWebsocketHost(HostTopology topology, int port, string ip)
{
bool flag = port != 0;
if (flag)
{
bool flag2 = NetworkTransport.IsPortOpen(ip, port);
if (flag2)
{
throw new InvalidOperationException("Cannot open web socket on port " + port.ToString() + " It has been already occupied.");
}
}
bool flag3 = topology == null;
if (flag3)
{
throw new NullReferenceException("topology is not defined");
}
NetworkTransport.CheckTopology(topology);
return(NetworkTransport.AddWsHostInternal(new HostTopologyInternal(topology), ip, port));
}
