Francois Piette wrote: > I don't know of ANY component where it is safe to call the message pump from > one of its event without knowing what happend. Even for a simple > TButton.OnClick, you can get strange result if you call the message pump > within the OnClick handler because the handler is re-entered. The problem is > more visible with TWSocket since it is likely the event is always reentered > because of the high rate network I/O has. > > That's not entirely true. Delphi's GUI model is event-driven so I'm willing to bet ANY call to Application.ProcessMessages will be made as a result of handling an message or event. And I'm willing to bet most calls to Application.ProcessMessages can be traced to ether an TButton.OnClick event or a menu item's OnClick! And if it's such a big issue for ICS, why isn't there a simple 5-line-of-code test that would raise an exception if any code is re-entered?
Besides, I'm asking about such behavior because of the way the THttpCli component behaves for me. If you remember one of my earlier questions, I had lots of problems with the component failing to connect to my HTTP server. Using Ethereal I determined the connection is poor (lost packets, duplicate ACK's) BUT the component still averages an too high number of failed connections. I don't think I've had 5 consecutive "sessions" where no connections timed-out. And I'm saying the failure rate is too high because I never saw such a problem using my web browser. Not once! And after the time out expires and the component "aborts" and restarts it's Get, it usually finishes very very quickly. So I need to ask: Is there some other obvious thing I'm missing, like a call to Application.ProcessMessage? What else should I be looking for. -- Cosmin Prund -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
