}
    }


    protected AndXServerMessageBlock ( Configuration config, byte command ) {
        this(config, command, null);
    }


    protected AndXServerMessageBlock ( Configuration config, byte command, ServerMessageBlock andx ) {
        super(config, command);
        this.andx = andx;
        if ( andx != null ) {
            this.andxCommand = (byte) andx.getCommand();
        }

     * @return the async
     */
    public boolean isAsync () {
        return this.async;
    }


    /**
     * @param command
     *            the command to set
     */
    @Override
    public final void setCommand ( int command ) {
        this.command = command;
    }


    /**
     * @return the treeId
     */
    public final int getTreeId () {
        return this.treeId;

    }


    /**
     * @return the command
     */
    @Override
    public final int getCommand () {
        return this.command;
    }


    /**
     * @param command
     *            the command to set
     */
    @Override
    public final void setCommand ( int command ) {
        this.command = (byte) command;
    }


    /**
     * @return the byteCount

     */
    boolean isTraceResourceUsage ();


    /**
     * @param command
     * @return whether to allow creating compound requests with that command
     */
    boolean isAllowCompound ( String command );


    /**
     * Machine identifier
     * 
     * ClientGuid, ... are derived from this value.
     * 

     * would want to do as the jcifs.smb1.netbios.SocketXxxputStream classes
     * arraycopy all data read or written into a new buffer shifted over 4!)
     */

    byte command, flags;
    int headerStart,
        length,
        batchLevel,
        errorCode,
        flags2,
        tid, pid, uid, mid,
        wordCount, byteCount;

        try {
            if (response == null) {
                doSend0( request );
                return;
            } else if (request instanceof SmbComTransaction) {
                response.command = request.command;
                SmbComTransaction req = (SmbComTransaction)request;
                SmbComTransactionResponse resp = (SmbComTransactionResponse)response;

                req.maxBufferSize = snd_buf_size;

    protected int maxBufferSize; // set in SmbTransport.sendTransaction() before nextElement called

    private byte[] txn_buf;


    protected SmbComTransaction ( Configuration config, byte command, byte subCommand ) {
        super(config, command);
        this.subCommand = subCommand;
        this.maxDataCount = config.getTransactionBufferSize() - 512;
        this.maxParameterCount = 1024;

            parameterOffset = primarySetupOffset + ( setupCount * 2 ) + 2;
            if (command != SMB_COM_NT_TRANSACT) {
                if( command == SMB_COM_TRANSACTION && isResponse() == false ) {
                    parameterOffset += stringWireLength( name, parameterOffset );
                }
            } else if (command == SMB_COM_NT_TRANSACT) {
                parameterOffset += 2;
            }

    AndXServerMessageBlock() {
    }
    AndXServerMessageBlock( ServerMessageBlock andx ) {
        if (andx != null) {
            this.andx = andx;
            andxCommand = andx.command;
        }
    }

    int getBatchLimit( byte command ) {
        /* the default limit is 0 batched messages before this
         * one, meaning this message cannot be batched.
         */
        return 0;
    }

    /* 

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#isAllowCompound(java.lang.String)
     */
    @Override
    public boolean isAllowCompound ( String command ) {
        return this.delegate.isAllowCompound(command);
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.Configuration#isTraceResourceUsage()
     */
    @Override