73e5c36f25
* Upgrade xorm to v1.2.2 (#16663) Backport #16663 Fix #16683 * Upgrade xorm to v1.2.2 * Change the Engine interface to match xorm v1.2.2 * Add test to ensure that dumping of login sources remains correct (#16847) #16831 has occurred because of a missed regression. This PR adds a simple test to try to prevent this occuring again. Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
110 lines
2.5 KiB
Go
Vendored
110 lines
2.5 KiB
Go
Vendored
package mssql
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// Transaction Manager requests
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// http://msdn.microsoft.com/en-us/library/dd339887.aspx
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import (
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"encoding/binary"
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)
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const (
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tmGetDtcAddr = 0
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tmPropagateXact = 1
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tmBeginXact = 5
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tmPromoteXact = 6
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tmCommitXact = 7
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tmRollbackXact = 8
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tmSaveXact = 9
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)
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type isoLevel uint8
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const (
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isolationUseCurrent isoLevel = 0
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isolationReadUncommited isoLevel = 1
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isolationReadCommited isoLevel = 2
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isolationRepeatableRead isoLevel = 3
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isolationSerializable isoLevel = 4
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isolationSnapshot isoLevel = 5
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)
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func sendBeginXact(buf *tdsBuffer, headers []headerStruct, isolation isoLevel, name string, resetSession bool) (err error) {
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buf.BeginPacket(packTransMgrReq, resetSession)
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writeAllHeaders(buf, headers)
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var rqtype uint16 = tmBeginXact
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err = binary.Write(buf, binary.LittleEndian, &rqtype)
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if err != nil {
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return
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}
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err = binary.Write(buf, binary.LittleEndian, &isolation)
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if err != nil {
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return
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}
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err = writeBVarChar(buf, name)
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if err != nil {
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return
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}
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return buf.FinishPacket()
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}
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const (
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fBeginXact = 1
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)
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func sendCommitXact(buf *tdsBuffer, headers []headerStruct, name string, flags uint8, isolation uint8, newname string, resetSession bool) error {
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buf.BeginPacket(packTransMgrReq, resetSession)
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writeAllHeaders(buf, headers)
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var rqtype uint16 = tmCommitXact
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err := binary.Write(buf, binary.LittleEndian, &rqtype)
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if err != nil {
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return err
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}
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err = writeBVarChar(buf, name)
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if err != nil {
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return err
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}
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err = binary.Write(buf, binary.LittleEndian, &flags)
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if err != nil {
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return err
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}
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if flags&fBeginXact != 0 {
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err = binary.Write(buf, binary.LittleEndian, &isolation)
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if err != nil {
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return err
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}
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err = writeBVarChar(buf, name)
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if err != nil {
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return err
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}
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}
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return buf.FinishPacket()
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}
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func sendRollbackXact(buf *tdsBuffer, headers []headerStruct, name string, flags uint8, isolation uint8, newname string, resetSession bool) error {
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buf.BeginPacket(packTransMgrReq, resetSession)
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writeAllHeaders(buf, headers)
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var rqtype uint16 = tmRollbackXact
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err := binary.Write(buf, binary.LittleEndian, &rqtype)
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if err != nil {
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return err
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}
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err = writeBVarChar(buf, name)
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if err != nil {
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return err
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}
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err = binary.Write(buf, binary.LittleEndian, &flags)
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if err != nil {
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return err
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}
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if flags&fBeginXact != 0 {
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err = binary.Write(buf, binary.LittleEndian, &isolation)
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if err != nil {
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return err
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}
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err = writeBVarChar(buf, name)
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if err != nil {
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return err
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}
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}
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return buf.FinishPacket()
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}
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