[Gtk-sharp-list] refcounting, GC, and glade..
11 Oct 2002 21:55:25 -0700
I'm having an issue now that has me a bit stumped. I have a chunk of
code that does the following:
Glade.XML.SetCustomHandler (new Glade.XMLCustomWidgetHandler
(customWidgetHandler)); // note -- this function isn't defined in CVS,
i've got a patch against the XML.custom file; it's just
gxml = new Glade.XML (null, "mphoto.glade", null, null);
Console.WriteLine ("Autoconnect done");
Now, I added a WriteLine statement in Glade.XML:~XML() to print when
it's being called. Running this, I see that it's being called from GC
while the app is in Autoconnect. This means that the gxml object, that
I have a reference to, is being GC'd.. I find this to be rather odd. :)
Doing some more gdb work I see that the object gets destroyed after the
first signal is connected.
This does not happen if there's no customWidgetHandler defined (note --
this just creates the appropriate Gtk.Widget based on a string and
returns it, and keeps a reference to each widget created even). It also
doesn't happen if there -is- a customWidgetHandler, but Autoconnect
isn't being called. So some combination of those two is causing this.
Is this simply some memory corruption somewhere? I guess either the
autoconnection code or the custom widget creation code could be doing
something strange, but they're hard to debug since they're in C#.. in
any case, I can't think of any reason other than corruption that could
cause this, no?
Vladimir Vukicevic <firstname.lastname@example.org>