/// <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);
}
