docs: boolean addAndCheckIfReady(int event) {
          int b = bits.addAndGet(event);
          boolean isReady = b == READY_WITHOUT_SIGNAL || b == READY_WITH_UNNECESSARY_SIGNAL || b == READY_WITH_SIGNAL;
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              Tr.debug(this, tc, "addAndCheckIfReady " + event + ", polling state: " + b + ", " + isReady);
          return isReady;
      }