forked from mirror/go-sqlite3
61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
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// Copyright (C) 2018 The Go-SQLite3 Authors.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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// +build cgo
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package sqlite3
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/*
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#ifndef USE_LIBSQLITE3
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#include <sqlite3-binding.h>
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#else
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#include <sqlite3.h>
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#endif
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*/
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import "C"
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import (
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"context"
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"database/sql/driver"
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)
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var (
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_ driver.Tx = (*SQLiteTx)(nil)
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)
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// SQLiteTx implemen sql.Tx.
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type SQLiteTx struct {
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c *SQLiteConn
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}
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// Begin transaction.
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func (c *SQLiteConn) Begin() (driver.Tx, error) {
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return c.begin(context.Background())
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}
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func (c *SQLiteConn) begin(ctx context.Context) (driver.Tx, error) {
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if _, err := c.exec(ctx, c.txlock, nil); err != nil {
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return nil, err
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}
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return &SQLiteTx{c}, nil
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}
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// Commit transaction.
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func (tx *SQLiteTx) Commit() error {
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_, err := tx.c.exec(context.Background(), "COMMIT", nil)
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if err != nil && err.(Error).Code == C.SQLITE_BUSY {
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// sqlite3 will leave the transaction open in this scenario.
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// However, database/sql considers the transaction complete once we
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// return from Commit() - we must clean up to honour its semantics.
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tx.c.exec(context.Background(), "ROLLBACK", nil)
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}
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return err
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}
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// Rollback transaction.
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func (tx *SQLiteTx) Rollback() error {
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_, err := tx.c.exec(context.Background(), "ROLLBACK", nil)
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return err
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}
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