From: Roger Pack <rogerpack2005@...>
Date: 2009-09-02T09:11:29+09:00
Subject: Re: Process#poll

Joel VanderWerf wrote:
> Roger Pack wrote:
>> Question.
>> 
>> Situation:
>> I want to start a process, then loop, checking for its status, so that I
>> can "know" when it finishes, and not block the Tk.mainloop.
>> 
>> Anybody know how to determine runningness of a process in ruby?
>> Thanks!
> 
> Don't the Process.wait family of methods do what you want? Maybe:
> 
> Process.waitpid(pid, Process::WNOHANG)

Interesting.  I think that that's what Python's Process#poll uses 
internally.  Unfortunately it appears that both it and Process::WNOHANG 
and Linux only (I'm on doze).  Hmm.
-r
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