}

        int r, n;
        final SmbComReadAndXResponse response = new SmbComReadAndXResponse(b, off);
        do {
            r = len > readSize ? readSize : len;
            file.send(new SmbComReadAndX(file.fid, fp, r, null), response);
            n = response.dataLength;
            if (n <= 0) {
                return (int) (fp - start > 0L ? fp - start : -1);
            }
            fp += n;

import okio.Buffer
import okio.ForwardingTimeout
import okio.Sink
import okio.Source
import okio.Timeout

/**
 * A socket connection that can be used to send HTTP/1.1 messages. This class strictly enforces the
 * following lifecycle:
 *
 *  1. [Send request headers][writeRequest].
 *  2. Open a sink to write the request body. Either [known][newKnownLengthSink] or
 *     [chunked][newChunkedSink].

    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

/// info | Інформація

Лише **одна відповідь** буде надіслана клієнту. Це може бути одна з помилкових відповідей або відповідь від *операції шляху*.

===========

This document describes the concurrency considerations for http/2 connections and the connection pool within OkHttp.

## HTTP/2 Connections

The HttpURLConnection API is a blocking API. You make a blocking write to send a request, and a blocking read to receive the response.

#### Blocking APIs

```Python
app.dependency_overrides = {}
```

/// tip

If you want to override a dependency only during some tests, you can set the override at the beginning of the test (inside the test function) and reset it at the end (at the end of the test function).

        Smb2CreateResponse createResp;
        try {
            createResp = th.send(create);
        } catch (final SmbException e) {
            final Smb2CreateResponse cr = create.getResponse();
            if (cr != null && cr.isReceived() && cr.getStatus() == NtStatus.NT_STATUS_SUCCESS) {
                try {
                    th.send(new Smb2CloseRequest(th.getConfig(), cr.getFileId()));

    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

/// info | 信息

只会向客户端发送**一次响应**。它可能是某个错误响应，或者是来自 *路径操作* 的响应。

在其中一个响应发送之后，就不能再发送其他响应了。

///

/// tip | 提示

	// global Trace system to send HTTP request/response
	// and Storage/OS calls info to registered listeners.
	globalTrace = pubsub.New[madmin.TraceInfo, madmin.TraceType](8)

	// global Listen system to send S3 API events to registered listeners
	globalHTTPListen = pubsub.New[event.Event, pubsub.Mask](0)

	// global console system to send console logs to
	// registered listeners

     * the smb URL syntax. If the second argument is <code>true</code>, then
     * bytes will be written to the end of the file rather than the beginning.
     *
     * @param file
     *            An <code>SmbFile</code> representing the file to write to
     * @param append
     *            Append to the end of file
     * @throws SmbException if an SMB error occurs
     */

    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

/// info

只會向用戶端送出「一個回應」。可能是其中一個錯誤回應，或是來自該路徑操作的回應。

一旦送出了其中一個回應，就不能再送出其他回應。

///

/// tip