Re: [gtk-osx-users] CoreAnimation: warning, deleted thread with uncommitted CATransaction.

[Pascal <p p14 orange fr>]

Thanks John for this pointer.

Yes I did it with the respect of this since the beginning.
Seems to me that it is more a new Quartz backend concern as It was working with MacOS 10.9 / XCode 6.

With GDB, I found that the all the code of my thread is executed (GTK window with a cairo surface with some 
drawings) but nothing is displayed. When my thread terminated then the warning appear and the window is 
displayed.

So now I create the window before execution of my thread. Actually, the main thing is to display the window 
before with gtk_widget_show_all.
And then no more CoreAnimation: warning.

Though the window is displayed, it is not needed by all threads but it's a minor drawback.

Thanks for all and happy new year, Pascal.
http://blady.pagesperso-orange.fr


> Le 28 déc. 2015 à 23:36, John Ralls <jralls ceridwen us> a écrit :
>
>
> > On Dec 28, 2015, at 10:07 AM, Pascal <p p14 orange fr> wrote:
> >
> > Thanks John for your quick answer.
> >
> > Well I was not aware of that rule!
> > I'm programming with GTKAda so I don't know if it is possible and how to "use idle events for 
> > synchronization".
> >
> > Do you know some examples?
> >
> > Anyway, I will see on GTKAda list.
> >
> > Thanks, Pascal.
> > http://blady.pagesperso-orange.fr
>
> Googling "gtk thread safety" returns thousands of results, the first page of which includes several 
> tutorials. There's also the official documentation at 
> https://developer.gnome.org/gdk3/stable/gdk3-Threads.html.
>
> If GtkAda hasn't wrapped the necessary API then you'll be limited to writing single-threaded applications.
>
> Regards,
> John Ralls