/**
     * Lock and read operation is supported capability.
     */
    int CAP_LOCK_AND_READ = 0x0100;
    /**
     * NT find operations are supported capability.
     */
    int CAP_NT_FIND = 0x0200;
    /**
     * DFS operations are supported capability.
     */
    int CAP_DFS = 0x1000;
    /**
     * Large read operations are supported capability.
     */

    ByteSource source = out.asByteSource();

    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.reset();
    assertTrue(Arrays.equals(new byte[0], source.read()));

    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.close();
  }

  private static boolean isAndroid() {

    ByteStreams.skipFully(multi, 20);
    assertEquals(20, multi.read());
  }

  public void testReadSingle_noStackOverflow() throws IOException {
    // https://github.com/google/guava/issues/2996
    // no data, just testing that there's no StackOverflowException
    assertEquals(-1, tenMillionEmptySources().read());
  }

  public void testReadArray_noStackOverflow() throws IOException {

) {
  private val countingSource: CountingSource = CountingSource(source)
  private val source: BufferedSource = countingSource.buffer()

  /** Total bytes read thus far. */
  private val byteCount: Long
    get() = countingSource.bytesRead - source.buffer.size

  /** How many bytes to read before [peekHeader] should return false, or -1L for no limit. */
  private var limit = -1L

And it's possible that for your use case, the solution is in one of them.

///

## Read the Tutorial first { #read-the-tutorial-first }

You could still use most of the features in **FastAPI** with the knowledge from the main [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank}.

    val body = body("")
    val bytes = body.byteStream()
    assertThat(bytes.read()).isEqualTo(-1)
  }

  @Test
  fun byteStreamSeesBom() {
    val body = body("efbbbf68656c6c6f")
    val bytes = body.byteStream()
    assertThat(bytes.read()).isEqualTo(0xef)
    assertThat(bytes.read()).isEqualTo(0xbb)
    assertThat(bytes.read()).isEqualTo(0xbf)

var errChunkTooBig = errors.New("chunk too big: choose chunk size <= 16MiB")

// newSignV4ChunkedReader returns a new s3ChunkedReader that translates the data read from r
// out of HTTP "chunked" format before returning it.
// The s3ChunkedReader returns io.EOF when the final 0-length chunk is read.
//
// NewChunkedReader is not needed by normal applications. The http package
// automatically decodes chunking when reading response bodies.

     *            The byte buffer. Must not be {@literal null}.
     * @return The number of bytes read.
     */
    public static int read(final FileChannel channel, final ByteBuffer buffer) {
        assertArgumentNotNull("channel", channel);
        assertArgumentNotNull("buffer", buffer);

        try {
            return channel.read(buffer);
        } catch (final IOException e) {
            throw new IORuntimeException(e);

				// Read last byte of object
				fmt.Sprintf("bytes=-%d", 1),
				// Read all but first byte of object
				"bytes=1-",
				// Read first half of object
				fmt.Sprintf("bytes=%d-%d", 0, objLen/2),
				// Read last half of object
				fmt.Sprintf("bytes=-%d", objLen/2),
				// Read middle half of object
				fmt.Sprintf("bytes=%d-%d", objLen/4, objLen*3/4),
				// Read 100MiB of the object from the beginning

      @Nullable Comparator<? super C> columnComparator) {
    checkNotNull(cells);
    if (rowComparator != null || columnComparator != null) {
      /*
       * This sorting logic leads to a cellSet() ordering that may not be expected and that isn't
       * documented in the Javadoc. If a row Comparator is provided, cellSet() iterates across the