From: Peter Zotov <whitequark@...>
Date: 2009-03-25T06:26:33+09:00
Subject: Re: Strange bug in irb1.9

Quoting "Dmitry Severin" <dmitry.severin@gmail.com>:

> Peter, this is bug in your code, not ext lib or ruby-1.9
>
> Actually, your problem is that in your code (rconfig.c) you create
> some intermediate objects that *can* be garbage collected in IRB
> session (and *will be* under some conditions, as crash.rb shows):
>
> [skipped]
>
> as these values are never references from other objects, they die in
> GC, receive junk data, and lead to crash:
>

Thanks, fixed everything. Added these arrays as constants.

> 2) just curious, why C extension, and not FFI, as you use quite a
> bunch of Ruby methods and few libconfig structs/calls? (see
> http://kenai.com/projects/ruby-ffi )

Libconfig is a bit Cxx-specific, so I decided to make binding  
behaviour more rubyish, for example added value caching to allow  
creation of unattached nodes or deletion of existing (how can I force  
destroying of Ruby object? :). Also, as I seen, FFI doesn't work on  
Windows, and that isn't good for me.

If anyone is interested, you can view my final version in repository at

http://git.whitequark.ru/libconfig-ruby.git

--
   WBR, Peter Zotov