Re: Wrapping variable argument functions

[Murray Cumming <murrayc murrayc com>]

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.


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>