Function processTimers

lib/internal/timers.js:526–544

(now)

  function processTimers(now) {
    debug('process timer lists %d', now);
    nextExpiry = Infinity;

    let list;
    let ranAtLeastOneList = false;
    while ((list = timerListQueue.peek()) != null) {
      if (list.expiry > now) {
        nextExpiry = list.expiry;
        return timeoutInfo[0] > 0 ? nextExpiry : -nextExpiry;
      }
      if (ranAtLeastOneList)
        runNextTicks();
      else
        ranAtLeastOneList = true;
      listOnTimeout(list, now);
    }
    return 0;
  }

  function listOnTimeout(list, now) {
    const msecs = list.msecs;