static final int ONE_WAY_TRANSACTION = 0x02;

    static final int PADDING_SIZE = 4;

    private int tflags = 0x00;
    private int pad1 = 0;
    private int pad2 = 0;
    private boolean hasMore = true;
    private boolean isPrimary = true;
    private int bufParameterOffset;
    private int bufDataOffset;

    static final int TRANSACTION_BUF_SIZE = 0xFFFF;

    /**
     * 
     */

* Full-Featured ORM
* Associations (Has One, Has Many, Belongs To, Many To Many, Polymorphism, Single-table inheritance)
* Hooks (Before/After Create/Save/Update/Delete/Find)
* Eager loading with `Preload`, `Joins`
* Transactions, Nested Transactions, Save Point, RollbackTo to Saved Point
* Context, Prepared Statement Mode, DryRun Mode
* Batch Insert, FindInBatches, Find To Map

     *
     * 0 = SMB_COM_CHECK_DIRECTORY
     * 2 = SMB_COM_CREATE_DIRECTORY
     * 3 = SMB_COM_DELETE
     * 4 = SMB_COM_DELETE_DIRECTORY
     * 5 = SMB_COM_OPEN_ANDX
     * 6 = SMB_COM_RENAME
     * 7 = SMB_COM_TRANSACTION
     * 8 = SMB_COM_QUERY_INFORMATION
     */

    /* All batch limits are single batch only until further notice
     */

    private static byte[] batchLimits = {
        1, 1, 1, 1, 1, 1, 1, 1, 0
    };

	if err := tx.Error; err != nil {
		t.Errorf("Failed to start transaction, got error %v\n", err)
	}

	if err := tx.Where("name=?", "zzjin").Delete(&User{}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)
	}

	if err := tx.Create(&User{Name: "zzjin"}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)
	}

            Config.getInt( "jcifs.smb1.smb.client.transaction_buf_size",
                    SmbComTransaction.TRANSACTION_BUF_SIZE ) - 512;

    // relative to headerStart
    private static final int PRIMARY_SETUP_OFFSET        = 61;
    private static final int SECONDARY_PARAMETER_OFFSET  = 51;

    private static final int DISCONNECT_TID      = 0x01;
    private static final int ONE_WAY_TRANSACTION = 0x02;

	db.Mux.RLock()
	if stmt, ok := db.Stmts[query]; ok && (!stmt.Transaction || isTransaction) {
		db.Mux.RUnlock()
		// wait for other goroutines prepared
		<-stmt.prepared
		if stmt.prepareErr != nil {
			return Stmt{}, stmt.prepareErr
		}

		return *stmt, nil
	}
	db.Mux.RUnlock()

	db.Mux.Lock()
	// double check
	if stmt, ok := db.Stmts[query]; ok && (!stmt.Transaction || isTransaction) {
		db.Mux.Unlock()

class TransPeekNamedPipe extends SmbComTransaction {

    private int fid;

    TransPeekNamedPipe( String pipeName, int fid ) {
        name = pipeName;
        this.fid = fid;
        command = SMB_COM_TRANSACTION;
        subCommand = TRANS_PEEK_NAMED_PIPE;
        timeout = 0xFFFFFFFF;
        maxParameterCount = 6;
        maxDataCount = 1;
        maxSetupCount = (byte)0x00;
        setupCount = 2;
    }

 */

package jcifs.smb1.smb1;

class TransWaitNamedPipe extends SmbComTransaction {

    TransWaitNamedPipe( String pipeName ) {
        name = pipeName;
        command = SMB_COM_TRANSACTION;
        subCommand = TRANS_WAIT_NAMED_PIPE;
        timeout = 0xFFFFFFFF;
        maxParameterCount = 0;
        maxDataCount = 0;
        maxSetupCount = (byte)0x00;
        setupCount = 2;
    }

    /**
     * 
     * @param config
     * @param filename
     */
    public Trans2GetDfsReferral ( Configuration config, String filename ) {
        super(config, SMB_COM_TRANSACTION2, TRANS2_GET_DFS_REFERRAL);
        this.request = new DfsReferralRequestBuffer(filename, 3);
        this.totalDataCount = 0;
        this.maxParameterCount = 0;
        this.maxDataCount = 4096;

	defer conn.Close()
	tx.Statement.ConnPool = conn
	return fc(tx)
}

// Transaction start a transaction as a block, return error will rollback, otherwise to commit. Transaction executes an
// arbitrary number of commands in fc within a transaction. On success the changes are committed; if an error occurs
// they are rolled back.
func (db *DB) Transaction(fc func(tx *DB) error, opts ...*sql.TxOptions) (err error) {
	panicked := true