private val http2Stream: Http2Stream,
) : Stream {
  override val requestBody = http2Stream.getSource().buffer()
  override val responseBody = http2Stream.getSink().buffer()

  override fun cancel() {
    http2Stream.closeLater(ErrorCode.CANCEL)
  }

	}

	// Start profiling on remote servers.
	for _, profiler := range profiles {
		// Limit start time to max 10s.
		ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
		globalNotificationSys.StartProfiling(ctx, profiler)
		// StartProfiling blocks, so we can cancel now.
		cancel()

		// Start profiling locally as well.
		prof, err := startProfiler(profiler)
		if err == nil {

    return null
  }

  /**
   * Cancel all calls currently enqueued or executing. Includes calls executed both
   * [synchronously][Call.execute] and [asynchronously][Call.enqueue].
   */
  fun cancelAll() {
    this.withLock {
      for (call in readyAsyncCalls) {
        call.call.cancel()
      }
      for (call in runningAsyncCalls) {
        call.call.cancel()
      }
      for (call in runningSyncCalls) {

	}
	return h.initQueueOnce.DoWithContext(ctx, h.initMemoryStore)
}

func (h *Target) initDiskStore(ctx context.Context) (err error) {
	ctx, cancel := context.WithCancel(ctx)
	h.storeCtxCancel = cancel
	h.lastStarted = time.Now()
	go h.startQueueProcessor(ctx, true)

	queueStore := store.NewQueueStore[interface{}](
		filepath.Join(h.config.QueueDir, h.Name()),

   * stream was canceled.
   *
   * This does nothing if [requestBody] and [responseBody] are already closed.
   *
   * For HTTP/2 this sends the [CANCEL](https://datatracker.ietf.org/doc/html/rfc7540#section-7)
   * error code.
   */
  fun cancel()

`mc admin decommission cancel` without an argument, lists out any on-going decommission in progress.

```
λ mc admin decommission cancel alias/
┌─────┬─────────────────────────────────┬──────────────────────────────────┬──────────┐

//
//	e.g. Send the log to a http server
type Target interface {
	String() string
	Endpoint() string
	Stats() types.TargetStats
	Init(ctx context.Context) error
	IsOnline(ctx context.Context) bool
	Cancel()
	Send(ctx context.Context, entry interface{}) error
	Type() types.TargetType
}

type targetsList struct {
	list []Target
	mu   sync.RWMutex
}

func newTargetsList() *targetsList {

   * the event source has already been closed or canceled.
   */
  fun cancel()

  fun interface Factory {
    /**
     * Creates a new event source and immediately returns it. Creating an event source initiates an
     * asynchronous process to connect the socket. Once that succeeds or fails, `listener` will be
     * notified. The caller must cancel the returned event source when it is no longer in use.
     */
    fun newEventSource(

	if err != nil {
		return err
	}
	m[policy] = p
	return nil
}

func (iamOS *IAMObjectStore) loadPolicyDocs(ctx context.Context, m map[string]PolicyDoc) error {
	ctx, cancel := context.WithCancel(ctx)
	defer cancel()
	for item := range listIAMConfigItems(ctx, iamOS.objAPI, iamConfigPoliciesPrefix) {
		if item.Err != nil {
			return item.Err
		}

		policyName := path.Dir(item.Item)

  }

  public void testListenerCalledOnCancelFromRunning() throws Exception {
    exec.execute(task);
    runLatch.await();

    // Task has started up, cancel it while it's running.
    task.cancel(true);
    assertTrue(task.isDone());
    assertTrue(task.isCancelled());
    assertEquals(1, taskLatch.getCount());

    // Wait for the listeners to be called.