/// <summary> Allow outside entities to listen for incoming DMessages. We /// make no presumptions about the ordering and do not filter /// anything at this level /// </summary> public virtual bool addListener(DProtocolNotifierIF n) { if (m_listeners.Count == 0) { m_listeners.Add(n); } else { // The DMessageCounter must always be the LAST listener, so that the message has // been fully processed before we wake up any threads that were waiting until a // message comes in. So, insert this listener at the second-to-last position in // the list of listeners. m_listeners.Insert(m_listeners.Count - 1, n); } return(true); }
/// <summary> Main rx loop which waits for commands and then issues them to anyone listening.</summary> internal virtual void listenForMessages() { DProtocolNotifierIF[] listeners = new DProtocolNotifierIF[0]; while (!m_stopRx) { /* read the data */ try { DMessage msg = rxMessage(); /* Now traverse our list of interested parties and let them deal with the message */ listeners = (DProtocolNotifierIF[])m_listeners.ToArray(typeof(DProtocolNotifierIF)); // copy the array to avoid multithreading problems for (int i = 0; i < listeners.Length; ++i) { DProtocolNotifierIF elem = listeners[i]; try { elem.messageArrived(msg, this); } catch (Exception exc) /* catch unchecked exceptions */ { if (Trace.error) { Console.Error.WriteLine("Error in listener parsing incoming message :"); //$NON-NLS-1$ Console.Error.WriteLine(msg.inToString(16)); Console.Error.Write(exc.StackTrace); Console.Error.Flush(); } } msg.reset(); /* allow others to reparse the message */ } /* now dispose with the message */ DMessageCache.free(msg); } //catch (IOException e) //{ // // this is a healthy exception that we simply ignore, since it means we haven't seen // // data for a while; is all. //} finally { } } }
/// <summary> Entry point for our receive thread </summary> public virtual void Run() { try { m_stopRx = false; listenForMessages(); } catch (Exception ex) { if (Trace.error && !(ex is System.Net.Sockets.SocketException && ex.Message.ToUpper().Equals("socket closed".ToUpper()))) // closed-socket is not an error //$NON-NLS-1$ { Console.Error.Write(ex.StackTrace); Console.Error.Flush(); } } /* notify our listeners that we are no longer listening; game over */ Object[] listeners = m_listeners.ToArray(); // copy the list to avoid multithreading problems for (int i = 0; i < listeners.Length; ++i) { DProtocolNotifierIF elem = (DProtocolNotifierIF)listeners[i]; try { elem.disconnected(); } catch (Exception exc) /* catch unchecked exceptions */ { if (Trace.error) { Console.Error.Write(exc.StackTrace); Console.Error.Flush(); } } } // final notice that this thread is dead! m_rxThread = null; }
/// <summary> Allow outside entities to listen for incoming DMessages. We /// make no presumptions about the ordering and do not filter /// anything at this level /// </summary> public virtual bool addListener(DProtocolNotifierIF n) { if (m_listeners.Count == 0) { m_listeners.Add(n); } else { // The DMessageCounter must always be the LAST listener, so that the message has // been fully processed before we wake up any threads that were waiting until a // message comes in. So, insert this listener at the second-to-last position in // the list of listeners. m_listeners.Insert(m_listeners.Count - 1, n); } return true; }
/// <summary> Main rx loop which waits for commands and then issues them to anyone listening.</summary> internal virtual void listenForMessages() { DProtocolNotifierIF[] listeners = new DProtocolNotifierIF[0]; while (!m_stopRx) { /* read the data */ try { DMessage msg = rxMessage(); /* Now traverse our list of interested parties and let them deal with the message */ listeners = (DProtocolNotifierIF[])m_listeners.ToArray(typeof(DProtocolNotifierIF)); // copy the array to avoid multithreading problems for (int i = 0; i < listeners.Length; ++i) { DProtocolNotifierIF elem = listeners[i]; try { elem.messageArrived(msg, this); } catch (Exception exc) /* catch unchecked exceptions */ { if (Trace.error) { Console.Error.WriteLine("Error in listener parsing incoming message :"); //$NON-NLS-1$ Console.Error.WriteLine(msg.inToString(16)); Console.Error.Write(exc.StackTrace); Console.Error.Flush(); } } msg.reset(); /* allow others to reparse the message */ } /* now dispose with the message */ DMessageCache.free(msg); } //catch (IOException e) //{ // // this is a healthy exception that we simply ignore, since it means we haven't seen // // data for a while; is all. //} finally { } } }
public virtual bool removeListener(DProtocolNotifierIF n) { m_listeners.Remove(n); return true; }
public virtual bool removeListener(DProtocolNotifierIF n) { m_listeners.Remove(n); return(true); }