Method Begin

tx.go:82–85

Begin opens a new transaction. Multiple read-only transactions can be opened at the same time but there can only be one read/write transaction at a time. Attempting to open a read/write transactions while another one is in progress will result in blocking until the current read/write transaction is

(writable bool)

// the current read/write transaction is completed.
// All transactions must be closed by calling Commit() or Rollback() when done.
func (db *DB) Begin(writable bool) (tx *Tx, err error) {
	// Use TransactionManager so we guard via db.mu when acquiring new transactions
	return db.transactionMgr.BeginTx(writable, true)
}

// newTx returns a newly initialized Tx object at given writable.
func newTx(db *DB, writable bool) (tx *Tx, err error) {