From: Park Heesob <phasis@...>
Date: 2002-08-20T23:50:14+09:00
Subject: Re: thread control


Hi,

"Shashank Date" <ADATE@kc.rr.com> wrote in message
news:oqr89.15682$Hf.526056@twister.kc.rr.com...
> Hi Park,
>
....
>
> That does seem to make a difference ... the main program does end as I
> expected it to.
>
> But what if I want to collect the partial output of my threads (in this
case
> "ping" commands) say in a file or something.
> The array out[] that I have used does not seem to get it.
>
> And the ping processes are still running .. how do I get rid of them.
>
> (I realize that this is a different issue now ;-)).
>
> Thanks for the suggestion, though.
>
> -- Shanko
>

How about this modified version?

# ------------------------------------------------------
cmds = [
        "ping 10.0.0.0 -n 30 -w 1000 ",
        "ping 10.0.0.0 -n 60 -w 1000 ",
        "ping 10.0.0.0 -n 90 -w 1000 "
       ]

out = []
threads = []

for c in cmds
    threads << Thread.new(c) { |myCmd|
        puts "#{myCmd}"
        f = IO.popen(myCmd)
        Thread.current["f"] = f
        while not f.eof?
          out << f.gets
        end
    }
end

puts threads.length.to_s + ' threads running'

begin
    i = 0
    threads.each { |t| i += 1 if t.stop? }
    puts `echo %TIME%`
    b = File.exists?("C:\\junk\\tmp_0.txt")
    puts i.to_s + ':' + File.mtime("C:\\junk\\tmp_0.txt").to_s if  $DEBUG
and b
    $stdout.flush
end until (i == threads.length) || (not b)

threads.each { |t|
  if t.alive?
    t["f"].close
    t.exit
  end
}

puts out if $DEBUG
# ------------------------------------------------------


Park Heesob