From: Eleanor McHugh <eleanor@...>
Date: 2009-09-08T01:11:23+09:00
Subject: Re: Executing system commands in threads under Ruby 1.8.6

On 7 Sep 2009, at 12:56, Bertram Scharpf wrote:
> I cannot open the above link. So I rewrite Joel's code snippet
> using backticks:
>
>  t = Thread.new {
>    puts `echo foo; sleep 1; echo bar`
>  }
>  puts `echo baz; sleep 1; echo quux`
>  t.join
>
> Stricly spoken it's not blocking. The "baz" is written to its pipe
> before "bar". But it is stored until "quux" is echoed and puts is
> asked to write it out.


 From Ruby's perspective the backtick is definitely a blocking IO  
operation, just as it is in shell script.


Ellie

Eleanor McHugh
Games With Brains
http://slides.games-with-brains.net
----
raise ArgumentError unless @reality.responds_to? :reason