From: Alexander Kellett <ruby-lists@...>
Date: 2004-12-28T18:54:21+09:00
Subject: Re: Garbage collection trouble

i'm right in saying that i haven't messed up
with gc if when i call GC.disable it still fails right?
(i'd made that assumption, but was not sure if it was correct)

Alex

On Dec 28, 2004, at 10:26 AM, ts wrote:

>>>>>> "C" == Christian Neukirchen <chneukirchen@gmail.com> writes:
>
> C> Could you maybe explain *why* that "fix" works?
>
>  Well, when you work with 'dl', this is like when you write an 
> extension,
>  you must help ruby and say it which variable must be marked.
>
>  In your case, when ruby leave #initialize it will not able to see that
>  `source' is used internally by libxml2. This is why the GC remove it.
>
>  If you store it in an instance variable, ruby will mark it and it 
> will be
>  available to libxml2, even after the end of #initialize
>
>
> Guy Decoux
>
>
>