*
     * @param data the data buffer
     * @param offset the offset in the buffer
     * @param length the length of data to compress
     * @param algorithm the compression algorithm to use
     * @return the compressed data
     * @throws CIFSException if compression fails
     */
    byte[] compress(byte[] data, int offset, int length, int algorithm) throws CIFSException;

        // Verify notify flags
        assertEquals(Smb2ChangeNotifyRequest.SMB2_WATCH_TREE, SMBUtil.readInt2(buffer, offset + 2));

        // Verify output buffer length
        assertEquals(8192, SMBUtil.readInt4(buffer, offset + 4));

        // Verify file ID
        byte[] readFileId = new byte[16];
        System.arraycopy(buffer, offset + 8, readFileId, 0, 16);

        // Length = 5, Offset = 8
        ByteBuffer buffer = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN);
        buffer.putShort(0, (short) content.length); // Length
        buffer.putShort(2, (short) content.length); // MaxLength (not used by readSecurityBuffer, but typically same as length)
        buffer.putInt(4, 8); // Offset

  }

  public void testLongsOffset() {
    assertEquals(1, DiscreteDomain.longs().offset(0L, 1).longValue());
    assertEquals(Long.MAX_VALUE, DiscreteDomain.longs().offset(0L, Long.MAX_VALUE).longValue());
  }

  public void testLongsOffsetExceptions() {
    assertThrows(IllegalArgumentException.class, () -> DiscreteDomain.longs().offset(0L, -1));
    assertThrows(

        this.offset = offset;
        this.maxCount = minCount = maxCount;
        command = SMB_COM_READ_ANDX;
        openTimeout = 0xFFFFFFFF;
    }

    void setParam(final int fid, final long offset, final int maxCount) {
        this.fid = fid;
        this.offset = offset;
        this.maxCount = minCount = maxCount;
    }

    @Override
    int getBatchLimit(final byte command) {

        // Validate input parameters
        if (data == null) {
            log.error("Data buffer is null in verify");
            return false;
        }
        if (offset < 0 || length < 0) {
            log.error("Invalid offset or length in verify: offset={}, length={}", offset, length);
            return false;

	{dataBlocks: 4, onDisks: 8, offDisks: 2, blocksize: int64(blockSizeV2), data: oneMiByte, offset: 2, algorithm: DefaultBitrotAlgorithm, shouldFail: false, shouldFailQuorum: false},                 // 2

            Smb2Lock lock3 = new Smb2Lock(500L, 600L, 4);

            int offset = 0;
            offset += lock1.encode(buffer, offset);
            offset += lock2.encode(buffer, offset);
            offset += lock3.encode(buffer, offset);

            assertEquals(72, offset); // 3 * 24

            // Verify first lock
            assertEquals(100L, SMBUtil.readInt8(buffer, 0));

     */
    public static final int SMB2_LOCKFLAG_FAIL_IMMEDIATELY = 0x10;

    private final long offset;
    private final long length;
    private final int flags;

    /**
     * Constructs an SMB2 lock element with the specified parameters.
     *
     * @param offset the byte offset in the file where the lock begins
     * @param length the number of bytes to lock

     * @param offset the offset in the buffer where data starts
     * @param len the length of data to digest
     */
    public void update(final byte[] input, final int offset, final int len) {
        if (LogStream.level >= 5) {
            log.println("update: " + updates + " " + offset + ":" + len);
            Hexdump.hexdump(log, input, offset, Math.min(len, 256));
            log.flush();