Re: Wrapping variable argument functions
- From: Murray Cumming <murrayc murrayc com>
- To: José Alburquerque <jaalburquerque cox net>
- Cc: gtkmm-list <gtkmm-list gnome org>
- Subject: Re: Wrapping variable argument functions
- Date: Thu, 07 Feb 2008 21:21:20 +0100
On Thu, 2008-02-07 at 21:09 +0100, Murray Cumming wrote:
> On Thu, 2008-02-07 at 13:14 -0500, José Alburquerque wrote:
> > Okay. Here's the patch. To produce the problem simply run
> > tests/test-caps. The way it's in svn now, test/test-caps works fine,
> > but with this patch I get warnings.
> Now I understand. It's this strange thing in gstreamer that stops you
> from changing items that have been referenced:
> (lt-test-caps:19844): GStreamer-CRITICAL **: gst_structure_set_value:
> assertion `IS_MUTABLE (structure)' failed
> I really don't know what to do about them yet. It's an abuse of the
> reference-counting system.
I guess we need some way to return a RefPtr without referencing the C
object, that would stop the original RefPtr from unreferencing its C
object. But I can't imagine how to do that without adding a bool member
variable to RefPtr.
murrayc murrayc com
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