From: ptkwt@... (Phil Tomson)
Date: 2006-02-02T17:03:18+09:00
Subject: Re: #defines in Ruby's .c files

In article <1138861656.852332.2507.nullmailer@x31.priv.netlab.jp>,
Yukihiro Matsumoto  <matz@ruby-lang.org> wrote:
>Hi,
>
>In message "Re: #defines in Ruby's .c files"
>    on Thu, 2 Feb 2006 06:45:53 +0900, ptkwt@aracnet.com (Phil Tomson) writes:
>|
>|I was talking to someone on irc who was trying to speed up sockets - he came up 
>|with a way to do it by modifying sysread() so that a new buffer doesn't always 
>|have to be allocated on each call. (sped up sockets by 314x by his account, BTW 
>|:)  However, he had to patch the Ruby source code to do this because he was not 
>|able to access a macro (READ_DATA_BUFFERED) from his extenstion code.  Turns 
>|out that the macro READ_DATA_BUFFERED is defined in io.c, so you can't use it 
>|from an extenstion.
>|
>|So, I got to thinking that maybe #defines like that should go into .h files, 
>|not .c files (maybe it should be #define'd in rubyio.h) so that they are 
>|accessable in extenstions.
>|
>|Would it be possible to move some of them to .h files for 1.8.5 (or at least 
>|before 2.0)?
>
>How about merging his patch to io.c?  I would be very glad to apply if
>it increases io performance 314 times.
>
>							matz.
>
>

It looks like he found some other problems with that patch (core dumps).  So 
the idea is being rethought.

Phil