Vlad,
You should make a break in searching for the reason of the
segmentation fault and polish your work a little bit before GSoC ends.
There are still some functions "not implemented". Maybe some of them
are trivial.
In qt_close() you write privars->win->~QTkMainWindow();. That's
rather unusual. Why not delete privars->win? If you want to call
only a method you should write one for this case.
As a conclusion to your GSoC project you should write down what was
achieved and what's still open ("not implemented" functions, frame
buffer, ...)
Regards,
Daniel
PS: An idea for a fix of the segmentation fault bug: This could be
caused by mixing the single- and multithread mode of libX11. I.e. the
main window will be opened from Tk in singlethread mode. The Qt
switches to multithread and closing the main window will lead to a
crash of the mutex handling then. Using ogl means to stay in
singlethread mode without real mutexes.
You could try to call XInitThreads() before allocating any X11 resource.
2013/9/18 Vlad Bogolin <vladbogo...@gmail.com>:
> Hi,
>
> First of all thanks for the hints.
>>
>>
>> > Next you could put break points where the resource is allocated
>> > (NewDatabase) and destroyed (XrmDestroyDatabase). In case of the Qt
>> > display manager the database resource will be destroyed without
>> > creating it before. That's probable not optimal.
>
>
> I have added breakpoints to XrmGetFileDatabase, XrmGetStringDatabase,
> XrmDestroyDatabase and I found out that XrmGetFileDatabase and
> XrmGetStringDatabase are called when mged starts before selecting the new
> dm. When the dm is selected there are no occurrences of any of these
> function (this happens for all the dm's not just the Qt one) and then when
> closing mged XrmDestroyDatabase is called and when using Qt it gets a
> segfault so the resource is created then destroyed somewhere else and then
> the segfault occurs.
>
> Cheers,
> Vlad
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