From: Edward Middleton <edward@...>
Date: 2004-03-29T16:11:28+09:00
Subject: wrapping interactive console program in Windows

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I am trying to write a wrapper for a program with an interactive shell,
under windows. I am having problems with the process blocking
permanently or repeating the last command. When it is like the following
it loops forever on the puts.

IO.popen("myprogram.exe","w+") do |link|
link.puts "command"
link.close_write
result = link.readlines
p result
end

When I remove the close_write it doesn't loop but blocks on readlines. I
can modify both the interactive program and the ruby wrapper library. I
tried explicitly putting a _flushall(); call and even a _fcloseall( );
in the interactive program but neither had any effect. How should this
be done? Any advice or examples would be great.

Edward

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