From: Roger Pack <rogerpack2005@...>
Date: 2010-06-29T23:41:31+09:00
Subject: Re: RCR: IO.popen4

Tanaka Akira wrote:
> 2010/6/26 Roger Pack <rogerpack2005@gmail.com>:
> 
>> IO.popen("ls") # what's the PID?
> 
> Use IO#pid.
> 
>> r,w,e,thread =  Open3.popen3("ls") # what's the PID?
> 
> Use thread.pid.

Oh cool thanks.
On 1.8 there appears to be no thread...

Open3.popen3("ls")
=> [#<IO:0xf7323c30>, #<IO:0xf7323bf4>, #<IO:0xf7323b90>]

Any option there?

Also wouldn't it be good to have a popen4 method so you can avoid 
starting an extra thread (though I suppose that Process.spawn already 
gives us that functionality...)

-r
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