From: Admin Tensor <lists@...>
Date: 2013-05-08T08:46:13+09:00
Subject: File Problem with pty and irb

Hi,

I have a C code that writes to a fifo file (a named pipe), and when I
just run it directly, it is fine:

    Screen 1: ./mycode
              (running)

    Screen 2: cat < namedpipe
              (a lot of outputs)

But when I try to run it via irb, it doesn't give me the output:

    Screen 1: irb -r cmd.rb
              irb(main):001:0>
              (the code is running in the background)

    Screen 2: cat < namedpipe
              (nothing)

and cmd.rb is basically

    require 'pty'
    @rbOut, @rbIn, @pid = PTY.spawn('mycode')

It looks that the code is running, because I can give the command in
Screen 1 and the results are fine and indicate progress.  Is there any
way to make mycode to output to namedpipe under irb?  Thanks.

Best regards,

Bill

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