return 2;
    }


    @Override
    protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        dst[ dstIndex++ ] = (byte) 0x04;
        dstIndex += writeString(this.path, dst, dstIndex);

        return dstIndex - start;
    }


    @Override
    protected int readParameterWordsWireFormat ( byte[] buffer, int bufferIndex ) {

	o = msgp.Require(b, z.Msgsize())
	// map header, size 3
	// string "id"
	o = append(o, 0x83, 0xa2, 0x69, 0x64)
	o = msgp.AppendString(o, z.DiskID)
	// string "m"
	o = append(o, 0xa1, 0x6d)
	o = msgp.AppendInt(o, z.ScanMode)
	// string "c"
	o = append(o, 0xa1, 0x63)
	if z.Cache == nil {
		o = msgp.AppendNil(o)
	} else {
		o, err = z.Cache.MarshalMsg(o)
		if err != nil {

        int len = dstIndex - start;
        return len;
    }


    @Override
    protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;
        dst[ dstIndex++ ] = (byte) 0x04;
        dstIndex += writeString(this.path, dst, dstIndex);
        return dstIndex - start;
    }


    @Override
    protected int readParameterWordsWireFormat ( byte[] buffer, int bufferIndex ) {

        writeInt2(this.nameTrnId, dst, dstIndex);
        dst[ dstIndex + OPCODE_OFFSET ] = (byte) ( ( this.isResponse ? 0x80 : 0x00 ) + ( ( this.opCode << 3 ) & 0x78 )
                + ( this.isAuthAnswer ? 0x04 : 0x00 ) + ( this.isTruncated ? 0x02 : 0x00 ) + ( this.isRecurDesired ? 0x01 : 0x00 ) );
        dst[ dstIndex + OPCODE_OFFSET

        writeInt2( nameTrnId, dst, dstIndex );
        dst[dstIndex + OPCODE_OFFSET] = (byte)(( isResponse ? 0x80 : 0x00 ) +
                        (( opCode << 3 ) & 0x78 ) +
                        ( isAuthAnswer ? 0x04 : 0x00 ) +
                        ( isTruncated ? 0x02 : 0x00 ) +
                        ( isRecurDesired ? 0x01 : 0x00 ));
        dst[dstIndex + OPCODE_OFFSET + 1] = (byte)(( isRecurAvailable ? 0x80 : 0x00 ) +

   * {@code ByteBuffer.allocate(2).putShort(value).array()}. For example, the input value {@code
   * (short) 0x1234} would yield the byte array {@code {0x12, 0x34}}.
   *
   * <p>If you need to convert and concatenate several values (possibly even of different types),
   * use a shared {@link java.nio.ByteBuffer} instance, or use {@link

   * {@code ByteBuffer.allocate(2).putShort(value).array()}. For example, the input value {@code
   * (short) 0x1234} would yield the byte array {@code {0x12, 0x34}}.
   *
   * <p>If you need to convert and concatenate several values (possibly even of different types),
   * use a shared {@link java.nio.ByteBuffer} instance, or use {@link

     * 
     */
    public static final int POSITIVE_SESSION_RESPONSE = 0x82;

    /**
     * 
     */
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83;
    static final int SESSION_RETARGET_RESPONSE = 0x84;
    static final int SESSION_KEEP_ALIVE = 0x85;

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;


    static void writeInt2 ( int val, byte[] dst, int dstIndex ) {

    // flags

    static final int FLAGS_CLOSE_AFTER_THIS_REQUEST = 0x01;
    static final int FLAGS_CLOSE_IF_END_REACHED = 0x02;
    static final int FLAGS_RETURN_RESUME_KEYS = 0x04;
    static final int FLAGS_RESUME_FROM_PREVIOUS_END = 0x08;
    static final int FLAGS_FIND_WITH_BACKUP_INTENT = 0x10;

    private int searchAttributes;
    private int tflags;
    private int informationLevel;

    private static final int FLAGS_RETURN_ADDITIONAL_INFO = 0x01;
    private static final int FLAGS_REQUEST_OPLOCK         = 0x02;
    private static final int FLAGS_REQUEST_BATCH_OPLOCK   = 0x04;

    // Access Mode Encoding for desiredAccess
    private static final int SHARING_COMPATIBILITY           = 0x00;
    private static final int SHARING_DENY_READ_WRITE_EXECUTE = 0x10;