From: Admin Tensor <lists@...>
Date: 2013-05-08T22:32:51+09:00
Subject: Re: File Problem with pty and irb

Sean O'halpin wrote in post #1108212:
> You're not waiting for the child process in cmd.rb so it's killed when
> the ruby process finishes. Try:
>
>     require 'pty'
>     @rbOut, @rbIn, @pid = PTY.spawn('mycode')
>     Process.waitpid(@pid)
>
> Regards,
> Sean

Hi Sean,

Thank your for your suggestion.  Actually when I tried that, even I
could not put commands into irb anymore and the namedpipe still gave
nothing:

    Screen 1: irb -r cmd.rb
              (no prompt from the irb)

    Screen 2: cat < namedpipe
              (nothing)

mycode is a code that runs forever (a daemon, if you like).

Best regards,

Bill

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