From: Robert Klemme <shortcutter@...>
Date: 2012-08-28T22:21:54+09:00
Subject: Re: Is calling system() from a thread suppose to be safe?

On Tue, Aug 28, 2012 at 2:12 PM, Joel Pearson <lists@ruby-forum.com> wrote:
> Considering the message about conversion from nil to integer, I'd expect
> the problem to be that either "cmd" or "@ncui_pid" is returning nil and
> can't be passed into the system command.

I don't think so:

    cmd = "sudo kill -9 -#{@ncui_pid}"
...
    system(cmd)

see http://www.itevenworks.net/~rgs/ruby/wifi-state-observer

cmd won't be nil and if @ncui_pid is nil this won't matter.

Kind regards

robert

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