private void HandleClientCommunication(object client)
{
try
{
if (!(client is TcpUser user))
{
throw new InstanceNotFoundException("TcpUser was not found");
}
var clientStream = user.ClientStream;
var message = new byte[32768];
while (true)
{
int bytesRead;
try
{
//// blocks until a client sends a message
bytesRead = clientStream.Read(message, 0, 32768);
}
catch (IOException ex)
{
ex.Handle(ExceptionHandlingOptions.RecordOnly, Log);
break;
}
catch (ObjectDisposedException ex)
{
ex.Handle(ExceptionHandlingOptions.RecordOnly, Log);
break;
}
if (bytesRead == 0)
{
//// the client has disconnected from the server
Log.InfoFormat("Client[{0}, {1}] disconnected.", user.Id, user.IpAddress);
break;
}
//// message has successfully been received
var encoder = new ASCIIEncoding();
OnNetworkMessageReceived?.Invoke(user, new NetworkEventArgs {
Message = encoder.GetString(message, 0, bytesRead)
});
}
OnTcpUserStatusChanged?.Invoke(user, new NetworkEventArgs {
SocketStatus = TcpSocketStatus.Disconnected
});
//// lost the user
Repository.Delete(user.Id);
Log.InfoFormat("Connection Lost from {0}", user.IpAddress);
}
catch (InstanceNotFoundException ex)
{
ex.Handle(ExceptionHandlingOptions.RecordAndThrow, Log);
}
}
private void ListenForClients()
{
try
{
_tcpListener.Start();
Log.InfoFormat("TcpServer Listening on {0}", _tcpListener.LocalEndpoint);
Status = TcpServerStatus.Listening;
OnTcpServerStatusChanged?.Invoke(this, new NetworkEventArgs {
ServerStatus = Status
});
while (true)
{
//// blocks until a client has connected to the server
if (_listenerThread.ThreadState != ThreadState.Running)
{
Log.InfoFormat("Listener Thread state {0}", _listenerThread.ThreadState);
break;
}
var user = new TcpUser(Log, _tcpListener.AcceptTcpClient(), Formatters);
user.OnConnect();
Repository.Add(user.Id, user);
OnTcpUserStatusChanged?.Invoke(user, new NetworkEventArgs {
SocketStatus = TcpSocketStatus.Connected
});
//// create a thread to handle communication with connected client
var clientThread = new Thread(HandleClientCommunication);
clientThread.Start(user);
}
}
catch (SocketException ex)
{
ex.Handle(ExceptionHandlingOptions.RecordAndThrow, Log);
}
}