From: "Iñaki Baz Castillo" <ibc@...>
Date: 2012-05-18T04:36:36+09:00
Subject: Re: rb_gc_register_address() or rb_gc_mark()?

2012/5/17 Hans Mackowiak <lists@ruby-forum.com>:
> i create an hash from the C-side, mark them with rb_global_variable and
> then store my objects into them ...
>
> this protects my objects from being deleted.

Hi, that's strange since rb_global_variable() is:


void
rb_global_variable(VALUE *var)
{
    rb_gc_register_address(var);
}


I can sure that rb_gc_register_address(&value) does not keep value
from being GC'd if value comes out of the scope. So, maybe
rb_gc_register_address() (which is the very same as
rb_global_variable()) is just useful when the VALUE is directly
created from C land?

-- 
Iñaki Baz Castillo
<ibc@aliax.net>