From: Mark Day <mday@...>
Date: 2007-05-31T12:40:40+09:00
Subject: Re: select([]) method

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On May 30, 2007, at 7:34 PM, Ari Brown wrote:

> 	I cam across a new method:
> select([], [], [], [])
> where the objects in the select parentheses are arrays.
>
> But what does this exactly do? I could not find ANY documentation  
> on it. The original code is:

$ ri select
More than one method matched your request. You can refine
your search by asking for information on one of:

      Array#select, Enumerable#select, Hash#select, IO::select,
      IRB::InputCompletor::select_message, Kernel#select,
      MatchData#select, Net::IMAP#select, Struct#select,
      URI::Generic#select, YAML::BaseNode#select!,  
YAML::BaseNode#select,
      YAML::DBM#select

I think you're talking about IO::select:

$ ri IO::select
------------------------------------------------------------- IO::select
      IO.select(read_array
      [, write_array
      [, error_array
      [, timeout]]] ) =>  array  or  nil
------------------------------------------------------------------------

It looks like you're using Mac OS X, so try doing "man select" from  
the Terminal for information on the underlying select() function in  
the OS.

-Mark


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