Re: interesting thread problem

[Jean-Marc Valin <jean-marc valin hermes usherb ca>]

I've seen something about a bug in glib that's fixed in CVS but not released
yet. I've had the same problem and it worked when I applied a simple patch to
glib. I have posted this patch on my project download page here:
http://freespeech.on.openprojects.net/FreeSpeech/html/download.html

	Jean-Marc

Edwin Young a écrit :
> 
> Hi,
> 
> I've just managed to convert my app to use a separate worker thread. I
> think it was worth it, but it wasn't trouble free. I thought I'd share
> one problem with the list because it had me baffled for a while, though
> I've worked around it now. It might also count as a bug, though I'm not
> sure.
> 
> I had a GnomePropertyBox, which contained a bunch of widgets. Whenever I
> closed the box (even without doing anything) the program would hang.
> This was because
> the widgets attached themselves to the propertybox with the code:
> 
> gtk_widget_ref(widget)
> gtk_object_set_data_full(GTK_OBJECT(propertybox), "name", widget,
> (GtkDestroyNotify) gtk_widget_unref);
> 
> The problem was that the propertybox, as it destroys itself, calls
> g_datalist_clear(). That acquires the gdk mutex, then (a few calls down)
> calls g_datalist_clear() again, and promptly hangs while trying to
> acquire the mutex.
> 
> Anyway, the workaround was to use
> 
> gtk_object_set_data(GTK_OBJECT(propertybox), "name", widget);
> 
> instead.
> 
> Regards,
> 
> --
> Edwin Young
> 
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