payload2: Int,
  ) {
    try {
      writer.ping(reply, payload1, payload2)
    } catch (e: IOException) {
      failConnection(e)
    }
  }

  /** For testing: sends a ping and waits for a pong. */
  @Throws(InterruptedException::class)
  fun writePingAndAwaitPong() {
    writePing()
    awaitPong()
  }

  /** For testing: sends a ping to be awaited with [awaitPong]. */

	fd.pd.evict()

	// The call to decref will call destroy if there are no other
	// references.
	err := fd.decref()

	// Wait until the descriptor is closed. If this was the only
	// reference, it is already closed. Only wait if the file has
	// not been set to blocking mode, as otherwise any current I/O
	// may be blocking, and that would block the Close.

// See issue #60276.
func TestCPUMetricsSleep(t *testing.T) {
	if runtime.GOOS == "wasip1" {
		// Since wasip1 busy-waits in the scheduler, there's no meaningful idle
		// time. This is accurately reflected in the metrics, but it means this
		// test is basically meaningless on this platform.
		t.Skip("wasip1 currently busy-waits in idle time; test not applicable")
	}

	names := []string{
		"/cpu/classes/idle:cpu-seconds",

		shouldCreateWLE: cfg.DeployAsVM && !cfg.AutoRegisterVM,
	}, nil
}

// Restart performs restarts of all the pod of the deployment.
// This is analogous to `kubectl rollout restart` on the echo deployment and waits for
// `kubectl rollout status` to complete before returning, but uses direct API calls.
func (d *deployment) Restart() error {
	var errs error
	var deploymentNames []string
	for _, s := range d.cfg.Subsets {

	}
	if mode == 'r' {
		pd.rg.Store(pdNil)
	} else if mode == 'w' {
		pd.wg.Store(pdNil)
	}
	return pollNoError
}

// poll_runtime_pollWait, which is internal/poll.runtime_pollWait,
// waits for a descriptor to be ready for reading or writing,
// according to mode, which is 'r' or 'w'.
// This returns an error code; the codes are defined above.
//
//go:linkname poll_runtime_pollWait internal/poll.runtime_pollWait

  // 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.

  // 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.

}

// 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.

	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
	}

  // 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.