FUTURE(Timeout.SMALL, Timeout.MAX),
    SMALL(Timeout.SMALL),
    FINITE(Timeout.MIN, Timeout.MINUS_SMALL, Timeout.ZERO, Timeout.SMALL),
    INFINITE(Timeout.LARGE, Timeout.MAX);

    final ImmutableList<Timeout> timeouts;

    TimeoutsToUse(Timeout... timeouts) {
      this.timeouts = ImmutableList.copyOf(timeouts);
    }
  }

  /** Possible outcomes of calling any of the methods under test. */

	drwMutexInfinite = 1<<63 - 1
)

// Timeouts are timeouts for specific operations.
type Timeouts struct {
	// Acquire - tolerance limit to wait for lock acquisition before.
	Acquire time.Duration

	// RefreshCall - timeout for the refresh call
	RefreshCall time.Duration

	// UnlockCall - timeout for the unlock call
	UnlockCall time.Duration

	// ForceUnlockCall - timeout for the force unlock call

    FUTURE(Timeout.SMALL, Timeout.MAX),
    SMALL(Timeout.SMALL),
    FINITE(Timeout.MIN, Timeout.MINUS_SMALL, Timeout.ZERO, Timeout.SMALL),
    INFINITE(Timeout.LARGE, Timeout.MAX);

    final ImmutableList<Timeout> timeouts;

    TimeoutsToUse(Timeout... timeouts) {
      this.timeouts = ImmutableList.copyOf(timeouts);
    }
  }

  /** Possible outcomes of calling any of the methods under test. */

      Future<V> future, long timeout, TimeUnit unit) throws ExecutionException, TimeoutException {
    boolean interrupted = false;
    try {
      long remainingNanos = unit.toNanos(timeout);
      long end = System.nanoTime() + remainingNanos;

      while (true) {
        try {
          // Future treats negative timeouts just like zero.
          return future.get(remainingNanos, NANOSECONDS);

      Future<V> future, long timeout, TimeUnit unit) throws ExecutionException, TimeoutException {
    boolean interrupted = false;
    try {
      long remainingNanos = unit.toNanos(timeout);
      long end = System.nanoTime() + remainingNanos;

      while (true) {
        try {
          // Future treats negative timeouts just like zero.
          return future.get(remainingNanos, NANOSECONDS);

	var clnts []NetLocker
	for i := 0; i < len(nodes); i++ {
		clnts = append(clnts, newClient(nodes[i].URL))
	}

	ds = &Dsync{
		GetLockers: func() ([]NetLocker, string) { return clnts, uuid.New().String() },
		Timeouts: Timeouts{
			Acquire:         testDrwMutexAcquireTimeout,
			RefreshCall:     testDrwMutexRefreshCallTimeout,
			UnlockCall:      testDrwMutexUnlockCallTimeout,
			ForceUnlockCall: testDrwMutexForceUnlockCallTimeout,
		},
	}

- **Focus**:
  1. Configuration of Envoy proxies by Pilot.
  1. Communication between Pilot and Envoy proxies.
  1. Validation of service discovery.
  1. Testing of traffic management policies (e.g., routing, retries, timeouts).
  1. Validation of load balancing configurations.
  1. Specific `istioctl proxy-config` commands being tested: `bootstrap`, `cluster`, `endpoint`, `listener`, `route`, `all`.

// Lock - block until write lock is taken or timeout has occurred.
func (di *distLockInstance) GetLock(ctx context.Context, timeout *dynamicTimeout) (LockContext, error) {
	lockSource := getSource(2)
	start := UTCNow()

	newCtx, cancel := context.WithCancel(ctx)
	if !di.rwMutex.GetLock(newCtx, cancel, di.opsID, lockSource, dsync.Options{
		Timeout:       timeout.Timeout(),
		RetryInterval: timeout.RetryInterval(),
	}) {

| `minio_node_drive_errors_timeout`      | Total number of drive timeout errors since server start             |
| `minio_node_drive_errors_ioerror`      | Total number of drive I/O errors since server start                 |
| `minio_node_drive_errors_availability` | Total number of drive I/O errors, timeouts since server start       |

}

func (c *closeNotifier) Close() error {
	if c.done != nil {
		xioutil.SafeClose(c.done)
		c.done = nil
	}
	return c.rc.Close()
}

// keepHTTPReqResponseAlive can be used to avoid timeouts with long storage
// operations, such as bitrot verification or data usage scanning.
// Every 10 seconds a space character is sent.