this.mid = mid;
    }

    /**
     * Chains another message to this message for compound operations.
     *
     * @param n the message to chain
     * @return whether chaining was successful
     */
    public boolean chain(final ServerMessageBlock2 n) {
        if (this.next != null) {
            return this.next.chain(n);
        }

        n.addFlags(SMB2_FLAGS_RELATED_OPERATIONS);

    if (failedPing != -1) {
      failWebSocket(
        e =
          SocketTimeoutException(
            "sent ping but didn't receive pong within " +
              "${pingIntervalMillis}ms (after ${failedPing - 1} successful ping/pongs)",
          ),
        isWriter = true,
      )
      return
    }

    try {
      writer.writePing(ByteString.EMPTY)
    } catch (e: IOException) {

        added += q.drainTo(buffer, numElements - added);
        if (added < numElements) { // not enough elements immediately available; will have to poll
          E e; // written exactly once, by a successful (uninterrupted) invocation of #poll
          while (true) {
            try {
              e = q.poll(deadline - System.nanoTime(), NANOSECONDS);
              break;
            } catch (InterruptedException ex) {

            log.debug("[{}] Success in HALF_OPEN state ({}/{})", name, successes, successThreshold);

            if (successes >= successThreshold) {
                log.info("[{}] Circuit breaker closing after {} successful attempts", name, successes);
                transitionTo(State.CLOSED);
            }
        } else if (currentState == State.CLOSED) {
            // Reset failure count on success in closed state

     *
     * @param hard if true, force immediate disconnection without waiting for pending requests
     * @param inUse whether the transport is currently in use
     * @return true if the disconnection was successful
     * @throws IOException if an I/O error occurs
     */
    protected abstract boolean doDisconnect(boolean hard, boolean inUse) throws IOException;

    /**
     * Connect the transport
     *

如果你已经有 **FastAPI Cloud** 账号（我们从候补名单邀请了你 😉），你可以用一个命令部署你的应用。

<div class="termy">

```console
$ fastapi deploy

Deploying to FastAPI Cloud...

✅ Deployment successful!

🐔 Ready the chicken! Your app is ready at https://myapp.fastapicloud.dev
```

</div>

就这样！现在你可以通过该 URL 访问你的应用了。✨

#### 关于 FastAPI Cloud { #about-fastapi-cloud }

  /**
   * Adds a single occurrence of the specified element to this multiset.
   *
   * <p>This method refines {@link Collection#add}, which only <i>ensures</i> the presence of the
   * element, to further specify that a successful call must always increment the count of the
   * element, and the overall size of the collection, by one.
   *
   * <p>To both add the element and obtain the previous count of that element, use {@link

 * previous callable has returned -- and, if the previous callable was an {@link AsyncCallable}, not
 * until the {@code Future} it returned is {@linkplain Future#isDone done} (successful, failed, or
 * cancelled).
 *
 * <p>This class serializes execution of <i>submitted</i> tasks but not any <i>listeners</i> of
 * those tasks.
 *

<div class="termy">

```console
$ fastapi deploy

Deploying to FastAPI Cloud...

✅ Deployment successful!

🐔 Ready the chicken! Your app is ready at https://myapp.fastapicloud.dev
```

</div>

Вот и всё! Теперь вы можете открыть ваше приложение по этой ссылке. ✨

   * conversion is done lazily.
   *
   * <p>The returned iterable's iterator supports {@code remove()} if the input iterator does. After
   * a successful {@code remove()} call, {@code fromIterable} no longer contains the corresponding
   * element.
   */
  /*
   * Just as Converter could implement `Function<@Nullable A, @Nullable B>` instead of `Function<A,