From: Paul Brannan <pbrannan@...>
Date: 2008-10-02T00:41:33+09:00
Subject: Re: Multiple C-Extensions with mkmf

On Tue, Sep 23, 2008 at 06:59:06PM +0900, Matthew B Gardner wrote:
> Hello --
>   I was wondering if there's a way to separate multiple C-extension classes 
> into separate files but still be able to directly call functions (C-style 
> calls)? I currently have a bunch of classes in one file for the performance 
> boost of direct calls over ruby function calls (not Ruby-ish, I know, but the 
> boost was significant), but the sloppiness isn't very appealing, especially 
> as the file continues to grow. Hopefully there's a solution that will allow 
> me to separate the classes without hindering performance?

Ruby loads extensions with RTLD_GLOBAL, so you should be able to access
exported symbols in another extension if you require that extension
using rb_require().

Paul