name = trimLeadingSlash(path.Clean(name))
		default:
			// ignore symlink'ed
			continue
		}
		if o.prefixAll != "" {
			name = pathJoin(o.prefixAll, name)
		}

		// Do small files async
		n++
		if header.Size <= xioutil.MediumBlock {
			asyncWriters <- struct{}{}
			bufp := xioutil.ODirectPoolMedium.Get()
			b := (*bufp)[:header.Size]
			if _, err := io.ReadFull(tarReader, b); err != nil {

### `StreamingResponse` { #streamingresponse }

Prend un générateur async ou un générateur/itérateur normal (une fonction avec `yield`) et diffuse le corps de la réponse.

{* ../../docs_src/custom_response/tutorial007_py310.py hl[3,16] *}

/// note | Détails techniques

* full stack: full stack (do not translate to "pila completa")
* full-stack: full-stack (do not translate to "de pila completa")
* stack: stack (do not translate to "pila")
* loop (as in async loop): loop (do not translate to "bucle" or "ciclo")
* hard dependencies: dependencias obligatorias (do not translate to "dependencias duras")
* locking: locking (do not translate to "bloqueo")

{* ../../docs_src/dependencies/tutorial007_py310.py hl[4] *}

位於 `yield` 之後的程式碼會在回應之後執行：

{* ../../docs_src/dependencies/tutorial007_py310.py hl[5:6] *}

/// tip

你可以使用 `async` 或一般函式。

**FastAPI** 都會正確處理，和一般相依相同。

///

## 同時使用 `yield` 與 `try` 的相依 { #a-dependency-with-yield-and-try }

如果在含 `yield` 的相依中使用 `try` 區塊，你會接收到使用該相依時拋出的任何例外。

/// tip | Astuce

En ajoutant `standard`, Uvicorn va installer et utiliser quelques dépendances supplémentaires recommandées.

Cela inclut `uvloop`, le remplaçant hautes performances de `asyncio`, qui fournit le gros gain de performance en matière de concurrence.

Lorsque vous installez FastAPI avec quelque chose comme `pip install "fastapi[standard]"`, vous obtenez déjà `uvicorn[standard]` aussi.

///

* Fix typos in Async docs. PR [#1423](https://github.com/tiangolo/fastapi/pull/1423).

## 0.54.2 (2020-05-16)

* Add translation to Spanish for [Concurrency and async / await - Concurrencia y async / await](https://fastapi.tiangolo.com/es/async/). PR [#1290](https://github.com/tiangolo/fastapi/pull/1290) by [@alvaropernas](https://github.com/alvaropernas).

The code following the `yield` statement is executed after the response:

{* ../../docs_src/dependencies/tutorial007_py310.py hl[5:6] *}

/// tip

You can use `async` or regular functions.

**FastAPI** will do the right thing with each, the same as with normal dependencies.

///

## A dependency with `yield` and `try` { #a-dependency-with-yield-and-try }

}

// Note: this function looks up a thread local policy. So it should be called in
// the appropriate client thread. In particular, in async mode, it may not be
// safe to call this function from the async EagerExecutor threads.
extern TFE_ContextDevicePlacementPolicy TFE_ContextGetDevicePlacementPolicy(
    TFE_Context* ctx) {
  return static_cast<TFE_ContextDevicePlacementPolicy>(

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

---> 100%
```

</div>

他の ASGI サーバープログラムでも同様の手順です。

/// tip | 豆知識

`standard` を付けると、Uvicorn は推奨の追加依存関係もインストールして使用します。

その中には、`uvloop` も含まれます。これは `asyncio` の高性能なドロップイン代替で、大きな並行実行性能の向上をもたらします。

`pip install "fastapi[standard]"` のように FastAPI をインストールした場合は、すでに `uvicorn[standard]` も含まれます。

///

## サーバープログラムを起動 { #run-the-server-program }

        for (EventType type : EventType.values()) {
            eventCounters.put(type, new AtomicLong(0));
            eventTimings.put(type, new AtomicLong(0));
        }

        // Start async logging processor
        startAsyncProcessor();

        // Register shutdown hook
        Runtime.getRuntime().addShutdownHook(new Thread(this::shutdown));
    }

    private void startAsyncProcessor() {