return new byte[BUFFER_SIZE];
  }

  /**
   * There are three methods to implement {@link FileChannel#transferTo(long, long,
   * WritableByteChannel)}:
   *
   * <ol>
   *   <li>Use sendfile(2) or equivalent. Requires that both the input channel and the output
   *       channel have their own file descriptors. Generally this only happens when both channels

	}
	return d.disk.ListDir(ctx, origvolume, volume, dirPath, count)
}

func (d *naughtyDisk) ReadFile(ctx context.Context, volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (n int64, err error) {
	if err := d.calcError(); err != nil {
		return 0, err
	}
	return d.disk.ReadFile(ctx, volume, path, offset, buf, verifier)
}

 * <li><code>TransactNamedPipe</code> A message-type pipe call that
 * writes to and reads from an existing pipe descriptor in one operation.
 * <li><code>CreateFile</code>, <code>ReadFile</code>,
 * <code>WriteFile</code>, and <code>CloseFile</code> A byte-type pipe can
 * be opened, written to, read from and closed using the standard Win32
 * file operations.
 * </ul>
 *
 * <p>

 * <li> <code>TransactNamedPipe</code> A message-type pipe call that
 *      writes to and reads from an existing pipe descriptor in one operation.
 * <li> <code>CreateFile</code>, <code>ReadFile</code>,
 *      <code>WriteFile</code>, and <code>CloseFile</code> A byte-type pipe can
 *      be opened, written to, read from and closed using the standard Win32
 *      file operations.
 * </ul>
 *

					}
					ht[file.Name] = htr
				}
			}
			b, err := json.MarshalIndent(ht, "", "  ")
			if err != nil {
				return err
			}
			fmt.Println(string(b))
			return nil
		}
		b, err := os.ReadFile(file)
		if err != nil {
			return err
		}
		buf := bytes.NewBuffer(nil)
		if _, err = msgp.CopyToJSON(buf, bytes.NewReader(b)); err != nil {
			return err
		}
		var htr map[string]any

		}
	}

	{
		buf := make([]byte, 5)
		// Test for negative offset.
		if _, err = xlStorage.ReadFile(t.Context(), volume, "myobject", -1, buf, v); err == nil {
			t.Fatalf("expected: error, got: <nil>")
		}
	}

	for range 2 {
		// Following block validates all ReadFile test cases.
		for i, testCase := range testCases {
			var n int64
			// Common read buffer.

	if !ok || failed {
		t.Errorf("asm: %s assembly failed", goarch)
		return
	}
	output := strings.Split(testOut.String(), "\n")

	// Reconstruct expected output by independently "parsing" the input.
	data, err := os.ReadFile(input)
	if err != nil {
		t.Error(err)
		return
	}
	lineno := 0
	seq := 0
	hexByLine := map[string]string{}
	lines := strings.SplitAfter(string(data), "\n")
Diff:
	for _, line := range lines {

				meta.name = decodeDirObject(meta.name)

				return send(meta)
			}
			// Check legacy.
			if HasSuffix(entry, xlStorageFormatFileV1) && legacy {
				var meta metaCacheEntry
				meta.metadata, err = xioutil.ReadFile(pathJoinBuf(sb, volumeDir, current, entry))
				diskHealthCheckOK(ctx, err)
				if err != nil {
					if !IsErrIgnored(err, io.EOF, io.ErrUnexpectedEOF) {
						internalLogIf(ctx, err)
					}
					continue

		if dataDir != tc.expectedDataDir {
			t.Fatalf("Expected %s but got %s", tc.expectedDataDir, dataDir)
		}
		count++
	}
}

func Benchmark_mergeXLV2Versions(b *testing.B) {
	data, err := os.ReadFile("testdata/xl.meta-v1.2.zst")
	if err != nil {
		b.Fatal(err)
	}
	dec, _ := zstd.NewReader(nil)
	data, err = dec.DecodeAll(data, nil)
	if err != nil {
		b.Fatal(err)
	}

	var xl xlMetaV2

	// File operations.
	ListDir(ctx context.Context, origvolume, volume, dirPath string, count int) ([]string, error)
	ReadFile(ctx context.Context, volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (n int64, err error)
	AppendFile(ctx context.Context, volume string, path string, buf []byte) (err error)