Exemplo n.º 1
0
        /// <summary>
        /// Shutdown the specificed socket.
        /// </summary>
        /// <param name="socket">The socket that needs to be
        /// shutdown.</param>
        public static void ShutdownSocket(Socket socket)
        {
            if (socket.Connected)
            {
                DebugUtilities.Log("Closing socket on port " +
                                   socket.LocalEndPoint);

                socket.Shutdown(SocketShutdown.Both);
                socket.Disconnect(false);
            }
        }
Exemplo n.º 2
0
        /// <summary>
        /// Callback of the asynchronous socket while
        /// message is sent to the client.
        /// </summary>
        /// <param name="ar">Result of the async task.</param>
        private static void SendCallback(IAsyncResult ar)
        {
            try
            {
                // Retrieve the socket from the state object.
                Socket handler = (Socket)ar.AsyncState;

                // Complete sending the data to the remote device.
                int bytesSent = handler.EndSend(ar);
                DebugUtilities.Log(
                    TAG + "Send " + bytesSent + " bytes to client."
                    );

                messageSender.OnSendComplete();
            }
            catch (Exception ex)
            {
                messageSender.OnSendFail(ex.Message);
            }
        }
Exemplo n.º 3
0
        /// <summary>
        /// Places the socket in a listening state and begins
        /// to accept connections.
        /// </summary>
        /// <param name="socket"></param>
        /// <param name="receiver">An instance of
        /// NetworkUtilities.IMessageReceiver that handles the
        /// callbacks for receiving data from remote socket client.</param>
        /// <param name="sender">And instance of
        /// NetworkUtilities.IMessageSender that handles the
        /// callbacks for sending data to remote socket client.</param>
        /// <param name="backlog">The maximum length of the
        /// pending connections queue. Default value is 10.</param>
        public static void StartListening(Socket socket,
                                          IMessageReceiver receiver, IMessageSender sender,
                                          int backlog = 10)
        {
            messageReceiver = receiver;
            messageSender   = sender;

            // Listen for incoming connections
            socket.Listen(backlog);
            // Start an asynchronous socket to listen for
            // connections.
            socket.BeginAccept(new AsyncCallback(AcceptCallback), socket);

            // For logging purpose.
            string localAddr = socket.LocalEndPoint.ToString();

            DebugUtilities.Log(
                TAG + "Server is now listening on " + localAddr
                );
        }