// Go MySQL Driver - A MySQL-Driver for Go's database/sql package//// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.//// This Source Code Form is subject to the terms of the Mozilla Public// License, v. 2.0. If a copy of the MPL was not distributed with this file,// You can obtain one at http://mozilla.org/MPL/2.0/.packagemysqltypemysqlTxstruct{mc*mysqlConn}func(tx*mysqlTx)Commit()(errerror){iftx.mc==nil||tx.mc.netConn==nil{returnErrInvalidConn}err=tx.mc.exec("COMMIT")tx.mc=nilreturn}func(tx*mysqlTx)Rollback()(errerror){iftx.mc==nil||tx.mc.netConn==nil{returnErrInvalidConn}err=tx.mc.exec("ROLLBACK")tx.mc=nilreturn}