From: Detlef Reichl <detlef.reichl@...>
Date: 2005-11-02T04:10:07+09:00
Subject: Re: Finding File source

On Mi, 2005-11-02 at 03:46 +0900, Dav Coleman wrote:
> Hi,
> 
> I've been trying to locate the source for File.open and I'm having no luck.
> 
> I looked under /usr/local/lib/ruby/1.8/ and found no File.rb or even IO.rb.
> I did a find /usr/local/lib/ruby -name "*.rb" -exec grep "class File"
> {} \; -print and it only turns up in a pertty print and ftools source.
> 
> Are the core classes only defined in compiled binary perhaps?
> 
Mostly, yes.


> If so, I have another question. Using RoR I'm running into a problem
> due to too many open files. I want to find the File.open source (or
> IO.open maybe) and add in some sort of debugging so I can log every
> file being opened to help debug the issue. Is there a way I can do
> this without going to the actual source?
> 

On unixoid systems lsof will show you all open file descriptors.

Cheers
detlef


> Thanks for any advice.
>