Re: Gtk2+ and thread safety

[Nicholas Allen - Sun Ireland - Software Engineer <nicholas allen ireland sun com>]

Hi Owen,

Thanks for the feedback but we are calling gdk_threads_init just after 
g_threads_init so I don't think this is the problem.

Owen Taylor wrote:

> Nicholas Allen - Sun Ireland - Software Engineer <nicholas allen ireland sun com> writes:
>
>  
>
> > We are working on a Java peer set for gtk at Sun. We have it pretty
> > much finished apart from a few bugs which are mostly due to missing
> > features in Gtk 1.2. It was our original intention to use Gtk+ 1.2 but
> > we are investigating the possibility of migrating it to 2.0 to fix the
> > bugs due to missing features in 1.2. I have ported the code to the new
> > 2.0 library but we are now experiencing many thread synchronization
> > problems. I have read the threading documentation but it does not
> > appear there is anything extra that we have to do (apart from calling
> > gdk_threads_init as well as g_threads_init). The code worked fine
> > under 1.2 but is failing nearly all the time on 2.0.
> >    
>
> I think what's probably going on is, from:
>
> http://developer.gnome.org/doc/API/2.0/gtk/gtk-changes-2-0.html
>
>  GDK is no longer put into threaded mode automatically when
>  g_thread_init() has been called. In order to use the global GDK
>  thread mutex with gdk_threads_enter() and gdk_threads_leave(), you
>  must call gdk_threads_init() explicitly. If you aren't using GDK and
>  GTK+ functions from multiple threads, there is no reason to call
>  gdk_threads_init().
>
> Regards,
>                                        Owen
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>  


--
Nick Allen
Software Engineer
Sun Microsystems Ireland Ltd
Hamilton House
East Point Business Park
Dublin 3

email: nicholas allen ireland sun com

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