Re: Gtk2::TreeModel::foreach callback not getting any arguments?

[muppet <scott asofyet org>]

On Wednesday, September 24, 2003, at 05:38 PM, Dan Lyke wrote:

> muppet writes:
> > you can put any perl scalar, including blessed or unblessed  
> > references,
> > in a column of type Glib::Scalar.
>
> So, completely silly question: Does this handle reference counting?
> ie: If that's the only reference to a blessed object will that object
> stay around, and if I delete the entry, will the object disappear?

yes.

if you look at line 510 of GType.xs  
(http://cvs.sourceforge.net/viewcvs.py/gtk2-perl/gtk2-perl-xs/Glib/ 
GType.xs?annotate=1.15), gperl_sv_copy() creates a new copy of the  
scalar with newSVsv.  for references, the copy is the right thing to  
do, as it automagically increases the reference count of referred-to  
object.  for normal scalars, you get a copy.

as expected, gperl_sv_free() uses SvREFCNT_dec() on the scalar.

--
muppet <scott at asofyet dot org>