lm.isWriteLock = true
			locked = true
		}
	} else {
		if !lm.isWriteLock {
			lm.ref++
			locked = true
		}
	}

	return locked
}

const (
	lockRetryInterval = 50 * time.Millisecond
)

// lockLoop will acquire either a read or a write lock
//
// The call will block until the lock is granted using a built-in
// timing randomized back-off algorithm to try again until successful

		done := make(chan struct{})
		go func() {
			defer close(done)
			time.Sleep(10 * time.Millisecond)
			fn()
		}()
		rb.CloseWithError(errors.New("test error"))
		<-done

		rb.Reset()
		done = make(chan struct{})
		go func() {
			defer close(done)
			fn()
		}()
		time.Sleep(10 * time.Millisecond)
		rb.CloseWithError(errors.New("test error"))
		<-done
	}
	testCancel(func() {

	m.writesKBPerSec = float64(ioStats.WriteSectors) * float64(sectorSize) / kib / durationSecs
	if ioStats.WriteIOs > 0 {
		m.writesAwait = float64(ioStats.WriteTicks) / float64(ioStats.WriteIOs)
	}

	// TotalTicks is in milliseconds
	m.percUtil = float64(ioStats.TotalTicks) * 100 / (durationSecs * 1000)

	return
}

func newDriveMetricsCache() *cachevalue.Cache[storageMetrics] {
	var (

    status->status = tensorflow::errors::FailedPrecondition(
        "Coordination service is not enabled.");
    return;
  }
  absl::Duration timeout;
  if (timeout_in_ms > 0) {
    timeout = absl::Milliseconds(timeout_in_ms);
  } else {
    // Block until the key-value is set or the worker shuts down.
    timeout = absl::InfiniteDuration();
  }
  auto status_or_value = coord_agent->GetKeyValue(key, timeout);

        if (logger.isDebugEnabled()) {
            logger.debug("Executor Thread Pool: {}", nThreads);
        }
        return new ThreadPoolExecutor(nThreads, nThreads, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<>(nThreads),
                new ThreadPoolExecutor.CallerRunsPolicy());
    }

    @Override
    public void store(final DataStoreParams paramMap, final Map<String, Object> dataMap) {

	return nil
}

func (target ExampleTarget) send(eventData Event) error {
	b := make([]byte, 1)
	if _, err := rand.Read(b); err != nil {
		panic(err)
	}

	time.Sleep(time.Duration(b[0]) * time.Millisecond)

	if target.sendErr {
		return errors.New("send error")
	}

	return nil
}

// SendFromStore - interface compatible method does no-op.
func (target *ExampleTarget) SendFromStore(_ store.Key) error {

	retries := 0
	rpc := globalNotificationSys.restClientFromHash(pathJoin(o.Bucket, o.Prefix))

	const (
		retryDelay    = 50 * time.Millisecond
		retryDelay250 = 250 * time.Millisecond
	)

	for {
		if contextCanceled(ctx) {
			return entries, ctx.Err()
		}

		// If many failures, check the cache state.
		if retries > 10 {

                    context.acquireTokenByRefreshToken(refreshToken, new ClientCredential(getClientId(), getClientSecret()), null, null);
            final AuthenticationResult result = future.get(acquisitionTimeout, TimeUnit.MILLISECONDS);
            if (result == null) {
                throw new SsoLoginException("authentication result was null");
            }
            return result;
        } catch (final Exception e) {

			return
		}
		t := time.NewTicker(time.Duration(pingInterval) * time.Second)
		defer t.Stop()
		emptyEventTicker = t.C
	} else {
		// Deprecated Apr 2023
		t := time.NewTicker(500 * time.Millisecond)
		defer t.Stop()
		keepAliveTicker = t.C
	}

	enc := json.NewEncoder(w)
	for {
		select {
		case ev := <-mergeCh:
			_, err := w.Write(ev)
			if err != nil {
				return
			}

		auth:                     auth,
		connected:                connected,
		lastConn:                 time.Now().UnixNano(),
		MaxErrResponseSize:       4096,
		HealthCheckReconnectUnit: 200 * time.Millisecond,
		HealthCheckTimeout:       time.Second,
	}
	if err != nil {
		clnt.lastErr = err
		clnt.lastErrTime = time.Now()
	}

	if clnt.HealthCheckFn != nil {
		// make connection pre-emptively.