From: Srinivas JONNALAGADDA <srinivas.j@...>
Date: 2006-07-29T18:45:05+09:00
Subject: Re: ruby threads? the point?

On Sat, 2006-07-29 at 06:18 +0900, Eric Armstrong wrote:
> Below. And now that I'm at work, rather than
> at home, I've been able to determine that it
> works as expected on my Solaris box, but fails
> on Windows XP. (There, the display only updates
> after pressing spacebar or some other key.)
> 

Here is an improvisation to your code. This automatically exits at the
end of the set timer, rather than wait for a 'q/Q' from the user.

Greetings,
JS

----
require 'curses'
require 'thwait'

count = ARGV[0] ? ARGV[0].to_i : 100

Curses.addstr "I am going to count #{count}. Press 'q' or 'Q' to
exit.\n"
Curses.refresh

threads = ThreadsWait.new

timer_thread = Thread.new do
  count.downto(1) do |i|
    Curses.addstr(".")
    Curses.refresh
    sleep 1
  end
end
threads.join_nowait timer_thread

wait_thread = Thread.new do
  while true
    c = Curses.getch
    case c
    when ?q, ?Q
      return true
    end
  end
end
threads.join_nowait wait_thread

begin
  threads.next_wait
ensure
  Thread.kill(timer_thread)
  Thread.kill(wait_thread)
end