}
		case <-timer.C:
			timer.Reset(settleTime / 10)
		}
	}
	t.Fatalf("timeout after %v waiting for %v", fatalWaitingTime, sig)
}

// quiesce waits until we can be reasonably confident that all pending signals
// have been delivered by the OS.
func quiesce() {
	// The kernel will deliver a signal as a thread returns
	// from a syscall. If the only active thread is sleeping,

	// the channel before the process function below has a chance
	// to send it on the channel, put the channel on a list of
	// channels being stopped and wait for signal delivery to
	// quiesce before fully removing it.

	handlers.stopping = append(handlers.stopping, stopping{c, h})

	handlers.Unlock()

	signalWaitUntilIdle()

	handlers.Lock()

	for i, s := range handlers.stopping {

    # but then it will be removed once again. So, we first wait a long
    # unfortunate amount of time to ensure that things have quiesced, then we
    # wait until we're sure the route is really gone before re-adding it again.
    Log-Output "Waiting 45 seconds for host network state to quiesce"
    Start-Sleep 45
    WaitFor_GceMetadataServerRouteToBeRemoved
    Log-Output "Re-adding the GCE metadata server route"

	}
	return dir, func() { os.RemoveAll(dir) }
}

const (
	quiescent            = 10 * time.Millisecond
	probablyStillBlocked = 10 * time.Second
)

func mustBlock(t *testing.T, desc string, f func()) (wait func(*testing.T)) {
	t.Helper()

	done := make(chan struct{})
	go func() {
		f()
		close(done)
	}()

	timer := time.NewTimer(quiescent)
	defer timer.Stop()
	select {
	case <-done:

</div>

...isso também inclui o `uvicorn`, que você pode usar como o servidor que rodará seu código.

!!! note "Nota"
    Você também pode instalar parte por parte.

    Isso é provavelmente o que você faria quando você quisesse lançar sua aplicação em produção:

    ```
    pip install fastapi
    ```

    Também instale o `uvicorn` para funcionar como servidor:

    ```
    pip install "uvicorn[standard]"
    ```

	t.Helper()

	f, err := os.OpenFile(name, os.O_RDWR, 0)
	if err != nil {
		t.Fatalf("os.Open(%q) = %v", name, err)
	}

	t.Logf("fd %d = os.Open(%q)", f.Fd(), name)
	return f
}

const (
	quiescent            = 10 * time.Millisecond
	probablyStillBlocked = 10 * time.Second
)

func mustBlock(t *testing.T, op string, f *os.File) (wait func(*testing.T)) {
	t.Helper()

	desc := fmt.Sprintf("%s(fd %d)", op, f.Fd())

	veryLongDuration = 1000 * time.Hour     // an arbitrary upper bound on the test's running time
)

// quiescent returns an arbitrary duration by which the program should have
// completed any remaining work and reached a steady (idle) state.
func quiescent(t *testing.T) time.Duration {
	deadline, ok := t.Deadline()
	if !ok {
		return 5 * time.Second
	}

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   */
  public void reset() {
    internalReset(0L);
  }

  /**
   * Equivalent in effect to {@link #sum} followed by {@link #reset}. This method may apply for
   * example during quiescent points between multithreaded computations. If there are updates
   * concurrent with this method, the returned value is not guaranteed to be the final
   * value occurring before the reset.
   *
   * @return the sum

   */
  public void reset() {
    internalReset(0L);
  }

  /**
   * Equivalent in effect to {@link #sum} followed by {@link #reset}. This method may apply for
   * example during quiescent points between multithreaded computations. If there are updates
   * concurrent with this method, the returned value is not guaranteed to be the final
   * value occurring before the reset.
   *
   * @return the sum