Executes the method’s block. If the block execution terminates before sec seconds has passed, it returns true. If not, it terminates the execution and raises exception (which defaults to Timeout::Error).

Note that this is both a method of module Timeout, so you can ‘include Timeout’ into your classes so they have a #timeout method, as well as a module method, so you can call it directly as Timeout.timeout().

Source Code

# File timeout.rb, line 47
def timeout(sec, exception=Error)
  return yield if sec == nil or sec.zero?
  raise ThreadError, "timeout within critical session" if Thread.critical
  begin
    x = Thread.current
    y = Thread.start {
      sleep sec
      x.raise exception, "execution expired" if x.alive?
    }
    yield sec
    #    return true
  ensure
    y.kill if y and y.alive?
  end
end