!7

set flag LeanMode.

static double coresToUse = .5;
static new BoolVar on;
static volatile long result;
static NotTooOften nto = nto(1.0);

p/*-exp*/ { // exp for "experiment" automatically reloads on updates
  new Schedule<Runnable> schedule;
  //enableScaffolding(schedule);
  schedule.add(0, r { print("on"); on.set(); });
  schedule.add(coresToUse, r { print("off"); on.unset(); });
  schedule.jumpFromTo(1, 0);
  schedule.speedUp(10);
  thread {
    long i = 0;
    while ping (true) {
      if (on!)
        ++i;
      else {
        result = i;
        on.waitUntilTrue();
        if (nto!) print("I have counted until " + i);
      }
    }
  }
  schedule.run();
}