// This method is the main loop of the ConnectionManager class. It listens for incoming
// connections then delegates them to Client Handlers
public void Listen()
{
// Create a server socket on the provided IP and PORT and an empty client socket
Log("Creating new TcpListener on " + SERVERIP.ToString() + ", Port: " + STARTPORT.ToString() + ".");
serverSocket = new TcpListener(SERVERIP, STARTPORT);
clientSocket = default(TcpClient);
// Initializes the server socket
Log("Starting server socket.");
serverSocket.Start();
Log("Server started!");
Log("Ready to establish connection.");
// Initializes the current connection count
connectionCount = 0;
// While this is supposed to keep looping
while (keepRunning)
{
// If there's a pending connection
if (serverSocket.Pending())
{
// And if the number of active handlers is currently under the maximum allowed
if (activeHandlers.Count < maxThreads)
{
// Accept the incoming connection
clientSocket = serverSocket.AcceptTcpClient();
// Increment the connection counter
connectionCount += 1;
Log("New client connected. Assigned to new thread.");
// Initialize a new client handler to handle the new connection
ClientHandler client = new ClientHandler();
// Add the new handler to the list of active handlers
activeHandlers.Add(client);
// Start the new client handler
client.startClient(clientSocket, connectionCount, this, logQueue);
}
// If the current number of active handlers has reached the maximum allowed print a log entry
else Log("Maximum running threads reached. Cannot create more connections.");
}
// If no connections are pending, sleep the thread to allow for other tasks
else Thread.Sleep(100);
}
// If no longer supposed to be running, stop the server socket
serverSocket.Stop();
Log("Listener closed.");
}
// This method is to be called by a client handler when it is no longer needed.
public void HandlerIsDone(ClientHandler caller)
{
// Removes the client handler from the list of active handlers
activeHandlers.Remove(caller);
}
