From: "Sean O'Dell" <sean@...[REMOVE_THE_SPAM]>
Date: 2003-09-12T06:14:19+09:00
Subject: Re: GC - PLEASE  set me straight

Thomas Sondergaard wrote:
>>If your C/C++ object has a VALUE member, you need only register the
>>address of that just once, and unregister it in the destructor.  As long
>>as your C/C++ object is around, the VALUE is registered and the object
>>it is tied to will not go away.
> 
> 
> That is exactly what I am doing I just wanted to spell out the scenario as
> it may happen when there are more than one C++ wrapped reference to a ruby
> object.
> 
> I'll try that volatile thing and see if it makes a difference.

Hmm ... I'm confused about that statement.

If the VALUE is a member of a class, then it's probably NOT on the 
stack, so volatile won't help you there.  In this case, just use 
rb_gc_register_address/rb_gc_unregister_address in your 
constructor/destructor methods for your C++ class.

	Sean O'Dell