public MessageHandlerThread(MessageBinder msgBinder)
{
MsgBinder = msgBinder;
Task = new Thread(new ThreadStart(Run));
Task.Name = "MessageBinder";
Task.Priority = ThreadPriority.AboveNormal;
}
/**
* Adds a listener for incoming messages.
*
* @param handler
* Interface to listener.
* @param ident
* The ident of messages to listen for. If ident<0, all messages will be heard.
*/
public void AddMessageListener(IMessageHandler handler, byte ident, int numReplies)
{
if (handler != null)
{
RemoveMessageListener(handler);
MessageBinder h = new MessageBinder(this, null, handler, MessageHandlerKind.Thread, null, ident, numReplies);
lock (IncomingListeners) {
IncomingListeners.Add(h);
}
}
}
// Returns true if message sent successfully.
// Returns false if low level write Q count above water mark.
// If connection dies during a long xfer, abort & return false.
public bool DispatchMessage(MessageBinder binder)
{
if (PostNetIfIndex == ProtocolConstants.NETIF_UNSET)
{
OutgoingNetIfIndex = ProtocolConstants.NETIF_USER_BASE;
}
else
{
OutgoingNetIfIndex = PostNetIfIndex;
}
LinkDriver p = Exchange.Manager.GetLinkDriver(OutgoingNetIfIndex);
if (p == null)
{
LastError = MessageError.BadNetIf;
return(false);
}
if (p.GetWriteQueueSize() > p.LinkWriteQWaterMark)
{
return(false);
}
if (p.GetComponentState() != ComponentState.Working)
{
return(false);
}
if (binder.Message.SenderId != 0)
{
binder.Exchange.SubmitWaiter(binder);
}
while (HasRemainingTransfers())
{
;
}
return(true);
}
/// <summary>
/// Internal. Called by message dispatcher to register a callback
/// for a message reply.
/// </summary>
/// <param name="binder">The callback wanting a reply.</param>
public void SubmitWaiter(MessageBinder binder)
{
lock (WaitingForReply) {
WaitingForReply.Add(binder);
}
}