From: Rajinder Yadav <devguy.ca@...>
Date: 2009-09-28T11:32:22+09:00
Subject: Re: calling 'C' code from Ruby

Aaron Patterson wrote:
> If you write your extension in C, it won't work with JRuby.  I find FFI 
> / dl to be infuriatingly difficult to debug at times.  Also when 
> distributing a DL/FFI gem, you need to teach your users how to set 
> LD_LIBRARY_PATH.  Your extension performance will be faster if you write 
> in C.  With FFI/DL, it takes more time to call C functions.
> 
> I can go on, but my general rule of thumb is if you're wrapping only a 
> handful of functions, use FFI.  If you're wrapping a complex library, 
> use C.

Hi Aaron. thank you for the feedback. This is really good to know, definitely 
helpful in terms of the thing I want to avoid. Hopeful it's not to difficult to 
get a "hello world" first step going =P

I guess I also want to evaluate/determine which technique is really efficient 
with passing large pools of data between C and Ruby.


> ---
> Aaron Patterson
> http://tenderlovemak
-- 
Kind Regards,
Rajinder Yadav

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