From: Bertram Scharpf <lists@...>
Date: 2009-09-08T00:31:58+09:00
Subject: Re: Executing system commands in threads under Ruby 1.8.6

Hi,

Am Montag, 07. Sep 2009, 21:04:53 +0900 schrieb geo ssscripting:
> The commands executed in the script at the SO link was simply pinging 
> the host on an ip range from 1 to 254 like in the following line :
> 
> `ping #{ip_addr}`
> 
> This happened from inside each individual thread. How could I replace 
> the backticks so that they won't block ?

You could fork-exec-wait as described in
<http://www.ruby-doc.org/docs/ProgrammingRuby/html/ref_m_process.html#Process.waitpid>.

To retrieve the exit status call waitpid2 as described below
waitpid.

Just fill an array with pids and you don't even need threading.

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de