From: Jan Bernhardt <j.bernhardt@...>
Date: 2003-05-15T08:30:41+09:00
Subject: Re: Embedding/GC/heap corruption problem

On Thu, 15 May 2003 00:53:20 +0200, Simon Strandgaard wrote:

> [snip rb_game.cpp]
> 
> I have been looking at your code for 30 minutes.. just staring.. I
> cannot spot any buggy constructions. Sorry.

Maybe it's not my code's fault. I'm getting the impression that Ruby might
have a bug here. The messages' frequency is quite high - it may well be
that over 100 messages per second hit the dispatch, maybe it's a timing
problem, but I don't really think that this is very likely because of the
single threaded nature of the HL engine and the Ruby interpreter.

I also tried different Ruby versions (1.6.7, 1.6.8, 1.8.0preview2) - all
versions resulting in the same error. Maybe someone with a deeper insight
into the Ruby GC can offer some ideas here.

> For others which has no overview-of/unfamiliar-with ones code then
> bigger ruby-extensions is hard debuggable. Have you looked at SWIG ?
> Suggestion: I think you will be able to get more help if you used SWIG.

I know about swig, but I don't think it has any advantages for my purpose.
The wrapping of the engine internals is very straightforward and there
aren't that many natives. As I did dive that deep into swig I fear that
there is the possibility of losing performance to the genericity (sp?) of
swig.

- Jan.