//  2. Start request 1.
//  3. Use a fake clock for the following logic, to insulate from scheduler noise.
//  4. The exec fn of request 1 starts request 2, which should wait
//     in its queue.
//  5. The exec fn of request 1 also forks a goroutine that waits 1 second
//     and then cancels the context of request 2.
//  6. The exec fn of request 1, if StartRequest 2 returns a req2 (which is the normal case),

CSI volume driver requires an attach operation (because it implements the CSI ControllerPublishVolume() method), and that the Kubernetes attach detach controller should call the attach volume interface which checks the volumeattachment status and waits until the volume is attached before proceeding to mounting. The CSI external-attacher coordinates with CSI volume driver and updates the volumeattachment status when the attach operation is complete. If the CSIDriverRegistry feature gate is enabled...

CSI volume driver requires an attach operation (because it implements the CSI ControllerPublishVolume() method), and that the Kubernetes attach detach controller should call the attach volume interface which checks the volumeattachment status and waits until the volume is attached before proceeding to mounting. The CSI external-attacher coordinates with CSI volume driver and updates the volumeattachment status when the attach operation is complete. If the CSIDriverRegistry feature gate is enabled...

// WaitString a constant for specifying the wait flag
const WaitString = "-w"

// WaitSecondsValue a constant for specifying the default wait seconds
const WaitSecondsValue = "5"

// WaitIntervalString a constant for specifying the wait interval flag
const WaitIntervalString = "-W"

// WaitIntervalUsecondsValue a constant for specifying the default wait interval useconds
const WaitIntervalUsecondsValue = "100000"

	e.workLock.Lock()
	defer e.workLock.Unlock()

	ns := a.attributes.GetNamespace()
	// this Add can trigger a Get BEFORE the work is added to a list, but this is ok because the getWork routine
	// waits the worklock before retrieving the work to do, so the writes in this method will be observed
	e.queue.Add(ns)

	if e.inProgress.Has(ns) {
		e.dirtyWork[ns] = append(e.dirtyWork[ns], a)
		return
	}

}

// List returns list of pointers to <storeElement> objects.
func (w *watchCache) List() []interface{} {
	return w.store.List()
}

// waitUntilFreshAndBlock waits until cache is at least as fresh as given <resourceVersion>.
// NOTE: This function acquired lock and doesn't release it.
// You HAVE TO explicitly call w.RUnlock() after this function.

	c2 := make(chan os.Signal, 1)
	Notify(c2, syscall.SIGHUP)
	defer Stop(c2)

	// Send this process a SIGWINCH and wait for notification on c1.
	syscall.Kill(syscall.Getpid(), syscall.SIGWINCH)
	waitSig(t, c1, syscall.SIGWINCH)

	// Send this process a SIGHUP and wait for notification on c2.
	syscall.Kill(syscall.Getpid(), syscall.SIGHUP)
	waitSig(t, c2, syscall.SIGHUP)

  // operation (because it implements the CSI ControllerPublishVolume()
  // method), and that the Kubernetes attach detach controller should call
  // the attach volume interface which checks the volumeattachment status
  // and waits until the volume is attached before proceeding to mounting.
  // The CSI external-attacher coordinates with CSI volume driver and updates
  // the volumeattachment status when the attach operation is complete.

			expectedEvents:  []string{"Warning VolumeMismatch"},
			errors:          noerrors,
			test:            testSyncVolume,
		},
		{
			// syncVolume waits for synClaim without warning when pv is prebound to pvc with matching volumeMode block
			name:            "14-14 - wait for synClaim without warning when pv is prebound to pvc with matching volumeModes block",

  // operation (because it implements the CSI ControllerPublishVolume()
  // method), and that the Kubernetes attach detach controller should call
  // the attach volume interface which checks the volumeattachment status
  // and waits until the volume is attached before proceeding to mounting.
  // The CSI external-attacher coordinates with CSI volume driver and updates
  // the volumeattachment status when the attach operation is complete.