// On success, enqueues `tensor` into a TF-managed FifoQueue given by
// `tensor_id`, associated with `session`. There must be a graph node named
// "fifo_queue_enqueue_<tensor_id>", to be executed by this API call. It reads
// from a placeholder node "arg_tensor_enqueue_<tensor_id>".
//
// `tensor` is still owned by the caller. This call will be blocked if the queue
// has reached its capacity, and will be unblocked when the queued tensors again

// the [Scanner] returns it to the user. If the token is nil, the
// Scanner reads more data and continues scanning; if there is no more
// data--if atEOF was true--the [Scanner] returns. If the data does not
// yet hold a complete token, for instance if it has no newline while
// scanning lines, a [SplitFunc] can return (0, nil, nil) to signal the
// [Scanner] to read more data into the slice and try again with a

 * encode/decode operation.
 */
public class DcerpcMessageTest {

    /**
     * A trivial concrete subclass used for testing. It simply writes a
     * single small value in {@code encode_in} and reads it in
     * {@code decode_out}.
     */
    private static class TestMessage extends DcerpcMessage {
        int decodedValue = 0;

        TestMessage() {
            /* nothing */
        }

        ServerMessageBlock.writeInt2(0, buf, 42);

        assertThrows(RuntimeException.class, () -> block.decode(buf, 0));
    }

    @Test
    @DisplayName("readAndXWireFormat reads chained plain SMB and marks received")
    void testReadAndXWireFormatWithPlainSMB() {
        DummyPlainSMB next = new DummyPlainSMB();
        // The implementation uses andx.wordCount, which starts at 0 by default

    /**
     * Read bytes from the input stream into a buffer
     *
     * @param in the input stream to read from
     * @param b the buffer to read into
     * @param off the offset in the buffer to start writing
     * @param len the number of bytes to read
     * @return number of bytes read
     * @throws IOException if an I/O error occurs
     */

	// check not at EOF
	b.WriteString("abcdefghijklmnopqrstuvwxyz")

	// after unsuccessful read
	if n, err := b.Read(nil); n != 0 || err != nil {
		t.Fatalf("Read(nil) = %d,%v; want 0,nil", n, err)
	}
	if err := b.UnreadByte(); err == nil {
		t.Fatal("UnreadByte after Read(nil): got no error")
	}

	// after successful read
	if _, err := b.ReadBytes('m'); err != nil {
		t.Fatalf("ReadBytes: %v", err)
	}

        }

        // Test concurrent reads
        Thread[] readThreads = new Thread[3];
        for (int i = 0; i < readThreads.length; i++) {
            readThreads[i] = new Thread(() -> {
                for (int j = 0; j < 100; j++) {
                    List<DirectoryCacheEntry.FileInfo> children = entry.getChildren();
                    // Just read, don't assert specific counts due to race conditions

        System.arraycopy(b, i, buf, index, l);
        advance(l);
    }

    /**
     * Reads an octet array from the buffer.
     *
     * @param b the byte array to read into
     * @param i the starting index in the array
     * @param l the number of bytes to read
     */
    public void readOctetArray(final byte[] b, final int i, final int l) {
        System.arraycopy(buf, index, b, i, l);

      // The removed stream may be blocked on a connection-wide window update.
      notifyAll()

      return stream
    }
  }

  internal fun updateConnectionFlowControl(read: Long) {
    withLock {
      readBytes.update(total = read)
      val readBytesToAcknowledge = readBytes.unacknowledged
      if (readBytesToAcknowledge >= okHttpSettings.initialWindowSize / 2) {
        writeWindowUpdateLater(0, readBytesToAcknowledge)

type dirReader struct {
	err error
}

func (r *dirReader) Read([]byte) (int, error) {
	return 0, r.err
}

func (r *dirReader) Close() error {
	return nil
}

type checksumReader struct {
	rc    io.ReadCloser
	hash  hash.Hash32
	nread uint64 // number of bytes read so far
	f     *File
	desr  io.Reader // if non-nil, where to read the data descriptor
	err   error     // sticky error
}