Re: [ruby-gnome2-devel-en] ref and unref

[Kouhei S. <ko...@co...>]

Hi,

In <CAGNS0RsW3zKxgo=aX-...@ma...>
  "[ruby-gnome2-devel-en] ref and unref" on Wed, 7 Jan 2015 16:41:51 +0000,
  jc...@gm... wrote:

> I'm trying to use the ruby-gnome2 gobject-introspection package to
> help make a Ruby binding for my GObject-based image processing
> library.
> 
> I have a general question about memory management: how is reference
> counting handled? For example, if I create a new object like this:
> 
>    a = Vips::Image.new
> 
> and then get rid of the reference:
> 
>    a = nil
>    GC.start
> 
> I would expect the object to be unreffed. Is there some extra magic I need?

No. You don't need to anything.
gobject-introspection gem (and glib2 gem) does everything.


Try the following code:

---
class X
end

a = X.new
a = nil
GC.start
p(ObjectSpace.each_object(X) {})
---

It'll print "1".

And also try the following code:

---
class X
end

1.times do
  X.new
end
GC.start
p(ObjectSpace.each_object(X) {})
---

It'll print "0".


I hope that they give you some hints.


Thanks,
--
kou