# File bin/experimental-filter.rb, line 41
def daemon(nochdir, noclose)
  pid = fork
  if pid == -1
    return -1
  elsif pid != nil
    exit 0
  end

  Process.setsid()

  Dir.chdir('/') if (nochdir == 0)
  if noclose == 0
    devnull = open("/dev/null", "r+")
    $stdin.reopen(devnull)
    $stdout.reopen(devnull)
    p = IO::pipe
    pid = fork
    if pid == -1
      $stderr.reopen(devnull)
    elsif pid == nil
      p[1].close
      STDIN.reopen(p[0])
      p[0].close
    else
      p[0].close
      $stderr.reopen(p[1])
      p[1].close
    end
  end
  return 0
end