* returned.
     *
     * If upstream would be selected but another thread is already reading upstream this will
     * block until that read completes. It is possible to time out while waiting for that.
     */
    @Throws(IOException::class)
    override fun read(
      sink: Buffer,
      byteCount: Long,
    ): Long {
      check(fileOperator != null)

      val source: Int =

    @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
    Future<?> possiblyIgnoredError = threadPool.submit(new Interrupter(currentThread()));
    try {
      // if waiting works, this should get stuck
      Queues.drain(q, new ArrayList<>(), 1, MAX_VALUE, NANOSECONDS);
      fail();
    } catch (InterruptedException expected) {

<span style="color: green;">INFO</span>:     Started reloader process [28720]
<span style="color: green;">INFO</span>:     Started server process [28722]
<span style="color: green;">INFO</span>:     Waiting for application startup.
<span style="color: green;">INFO</span>:     Application startup complete.
```

</div>

/// note

La commande `uvicorn main:app` fait référence à :

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Application startup complete.
```

</div>

In the output, there's a line with something like:

<font color="#4E9A06">INFO</font>:     Started server process [<font color="#06989A">2265873</font>]
<font color="#4E9A06">INFO</font>:     Waiting for application startup.
<font color="#4E9A06">INFO</font>:     Application startup complete.
```

</div>

Di output, terdapat sebaris pesan:

```hl_lines="4"

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Application startup complete.
```

</div>

Na saída, temos:

```hl_lines="4"

		n = tw
	}
	t.mu.Lock()
	defer t.mu.Unlock()

	t.objAPI = objAPI
	t.updateWorkers(n)
}

// PendingTasks returns the number of ILM transition tasks waiting for a worker
// goroutine.
func (t *transitionState) PendingTasks() int {
	return len(t.transitionCh)
}

// ActiveTasks returns the number of active (ongoing) ILM transition tasks.

	i := 0
	for {
		partKey := fmt.Sprintf("%s-metacache-part-%d", ReservedMetadataPrefixLower, i)
		v, ok := fi.Metadata[partKey]
		if !ok {
			o.debugln("no match in metadata, waiting")
			return -1, io.ErrUnexpectedEOF
		}
		err := json.Unmarshal([]byte(v), &tmp)
		if !ok {
			bugLogIf(context.Background(), err)
			return -1, err
		}
		if tmp.First == "" && tmp.Last == "" && tmp.EOS {

    /**
     * Transaction subcommand for peeking data from a named pipe
     */
    public static final byte TRANS_PEEK_NAMED_PIPE = (byte) 0x23;
    /**
     * Transaction subcommand for waiting on a named pipe
     */
    public static final byte TRANS_WAIT_NAMED_PIPE = (byte) 0x53;
    /**
     * Transaction subcommand for calling a named pipe
     */

				// No cache found, no entries found.
				return entries, io.EOF
			}
			if c.status == scanStateError || c.status == scanStateNone {
				o.ID = ""
				o.Create = false
				o.debugln("scan status", c.status, " - waiting a roundtrip to create")
			} else {
				// Continue listing
				o.ID = c.id
				go c.keepAlive(ctx, rpc)
			}
		}
	}

	if o.ID != "" && !o.Transient {