/** Start the server and begin accepting incoming connections. */
  public void start() {
    try {
      this_mon.enter();

      if (!isRunning()) {
        try {
          server_channel = ServerSocketChannel.open();

          server_channel.socket().setReuseAddress(true);
          if (receive_buffer_size > 0)
            server_channel.socket().setReceiveBufferSize(receive_buffer_size);

          server_channel.socket().bind(bind_address, 1024);

          if (Logger.isEnabled())
            Logger.log(new LogEvent(LOGID, "TCP incoming server socket " + bind_address));

          AEThread accept_thread =
              new AEThread("VServerSelector:port" + bind_address.getPort()) {
                public void runSupport() {
                  accept_loop();
                }
              };
          accept_thread.setDaemon(true);
          accept_thread.start();
        } catch (Throwable t) {
          Debug.out(t);
          Logger.log(
              new LogAlert(
                  LogAlert.UNREPEATABLE,
                  "ERROR, unable to bind TCP incoming server socket to " + bind_address.getPort(),
                  t));
        }

        last_accept_time = SystemTime.getCurrentTime(); // init to now
      }
    } finally {

      this_mon.exit();
    }
  }
  /** Stop the server. */
  public void stop() {
    try {
      this_mon.enter();

      if (server_channel != null) {
        try {
          server_channel.close();
          server_channel = null;
        } catch (Throwable t) {
          Debug.out(t);
        }
      }
    } finally {

      this_mon.exit();
    }
  }
 protected void accept_loop() {
   while (isRunning()) {
     try {
       SocketChannel client_channel = server_channel.accept();
       last_accept_time = SystemTime.getCurrentTime();
       client_channel.configureBlocking(false);
       listener.newConnectionAccepted(server_channel, client_channel);
     } catch (AsynchronousCloseException e) {
       /* is thrown when stop() is called */
     } catch (Throwable t) {
       Debug.out(t);
       try {
         Thread.sleep(500);
       } catch (Exception e) {
         e.printStackTrace();
       }
     }
   }
 }
 public InetAddress getBoundToAddress() {
   if (server_channel != null) {
     return server_channel.socket().getInetAddress();
   }
   return null;
 }
 /**
  * Is this selector actively running
  *
  * @return true if enabled, false if not running
  */
 public boolean isRunning() {
   if (server_channel != null && server_channel.isOpen()) return true;
   return false;
 }