From: Sylvain Joyeux <sylvain.joyeux@...>
Date: 2007-08-14T15:54:26+09:00
Subject: Re: TCPSocket select method

On Monday 13 August 2007, Roger Pack wrote:
> Hmm.  If you create a method thus:
> class TCPSocket
>  def readableNow?
>    r,w,e = select([self],nil,nil,0)
>    return r != nil
>  end
> end
>
> It turns out to use a select OTHER than IO.select. Anyone know, by
> chance what the 'internal' select method does?
It cannot use IO.select since IO.select is a singleton method of IO and a 
TCPSocket object is an instance of IO. The only way to explicitely get 
IO.select is to call
  r,w,e = IO.select(...)

It calls Kernel#select. And I wouldn't be surprised if Kernel#select and 
IO.select were actually the same method ...

Sylvain