Hi Matt,
with your sleep of 10 ms you introduce the possibility for a context
switch. So "something" else can take the CPU to do something. This has
not necessarily something to do with X, this might happen anywhere also
with "normal" threads.
Greetings,
Marc
Matt Palmer wrote:
>Well, actually, it was a really simple app - and it turned out the fix was
>very simple too - just run the following in a thread:
>
>void* ProcessEvents(void* arg) {
> while (true) {
> gSystem->ProcessEvents();
> gSystem->Sleep(10);
> }
> return 0;
>}
>
>Is there any reason why there can't be a thread that just processes events
>like this by default? Or do the Xlib SMP problems prevent it?
>
>Matt
>
>On Thursday 13 June 2002 1:18 pm, you wrote:
>
>>Hi Matt,
>>
>> threads for such a big task might give problems. Use threads to run
>>small monitors for example and run the GUI as the main program. An
>>alternative is to use timers to regularly check the tasks you want to
>>minitor.
>>
>>Cheers, Fons.
>>
>>On Thu, 2002-06-13 at 12:54, Matt Palmer wrote:
>>
>>>Hi,
>>>I would like to know if the following is possible:
>>>I want to write a GUI for some analysis code that is interpreted by CINT.
>>>This analysis code typically sits in a loop, so rarely exits. I would
>>>like to present status information, logging etc in a GUI. So, in order
>>>for the GUI to remain responsive to the user, I assume I would need to run
>>>the GUI in a separate thread. Is it enough to simply create a separate
>>>thread and then within that, create my main GUI object (a sub-class of
>>>TGMainFrame) ? I would then presumably make this object global so it can
>>>be accessed in the analysis code.
>>>
>>>I was worried by the statement in the TThread documentation saying that
>>>CINT will block all threads while it executes. Is this still true? If
>>>so, would moving the analysis code to compiled (something that I'm
>>>probably unable to do) code fix this? Is there any other way of doing
>>>this which I've totally missed?
>>>
>>>Thanks very much
>>>
>>>Matt
>>>
--
Dr. Marc Hemberger
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