public static Observable<Long> interval(
long period, TimeUnit unit, BackedScheduler scheduler, IUpdateCollector updateCollector) {
return Observable.<Long>create(
o -> {
BackedWorker<Subscriber<? super Long>> worker =
scheduler.createWorker(o, updateCollector);
if (!MachineContext.get().recovering) {
worker.schedulePeriodicallyBacked(
child -> {
child.onNext(0L);
},
period,
period,
unit,
"interval",
"infinite");
} else {
o.onNext(0L); // feed skip(1)
LOG.info("interval recovered");
}
o.add(worker);
})
.lift(ScanOperator.create(-1L, (s, v) -> s + 1, updateCollector))
.skip(1);
}
public static Observable<?> pulse(
long period, TimeUnit unit, BackedScheduler scheduler, IUpdateCollector updateCollector) {
return Observable.create(
o -> {
BackedWorker<Subscriber<?>> worker = scheduler.createWorker(o, updateCollector);
worker.schedulePeriodicallyBacked(
child -> {
child.onNext(null);
},
period,
period,
unit,
"pulse",
"infinite");
o.add(worker);
});
}