Re: Class-Scope Properties

[Tim Janik <timj gtk org>]

On Thu, 20 Sep 2001, Eric Lemings wrote:

> Havoc Pennington wrote:
>
> > Anyway, GLib has no way to run stuff at exit, short of atexit(). You
> > could always install your own atexit() handler to free things, I
> > guess.
>
> That's a bit of a hack but I suppose it'll work.  Thanks.

nah, you don't need atecit() in your case, as far as i understand.
the reason class finalizers are bound to plugin types only is that
only those classes will ever get destructed.
but for your case, you probably only need the B instance as long
as you have 1 or more A instances, right?

so you'd actually do:

AClass {
  [...]
  B *b;
  guint b_count;
};
A_init (A *a)
{
  AClass *class = A_GET_CLASS (a);
  
  if (!class->b_count++)
    class->b = g_object_new (TYPE_B, NULL);
}
A_finalize (A *a)
{
  AClass *class = A_GET_CLASS (a);

  if (!--class->b_count)
    {
      g_object_unref (class->b);
      class->b = NULL;
    }
  /* chain parent */
  [...]
}

> Eric.

---
ciaoTJ