🔥A cross-language distributed transaction manager. Support xa, tcc, saga, transactional messages. 跨语言分布式事务管理器
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package busi
import (
"context"
"database/sql"
"fmt"
"github.com/dtm-labs/dtm/dtmcli"
"github.com/dtm-labs/dtm/dtmcli/dtmimp"
"github.com/dtm-labs/dtm/dtmcli/logger"
"github.com/dtm-labs/dtm/dtmgrpc"
"github.com/dtm-labs/dtm/dtmutil"
"github.com/gin-gonic/gin"
)
func dbGet() *dtmutil.DB {
return dtmutil.DbGet(BusiConf)
}
func sdbGet() *sql.DB {
db, err := dtmimp.PooledDB(BusiConf)
logger.FatalIfError(err)
return db
}
func txGet() *sql.Tx {
db := sdbGet()
tx, err := db.Begin()
logger.FatalIfError(err)
return tx
}
func resetXaData() {
if BusiConf.Driver != "mysql" {
return
}
db := dbGet()
type XaRow struct {
Data string
}
xas := []XaRow{}
db.Must().Raw("xa recover").Scan(&xas)
for _, xa := range xas {
db.Must().Exec(fmt.Sprintf("xa rollback '%s'", xa.Data))
}
}
// MustBarrierFromGin 1
func MustBarrierFromGin(c *gin.Context) *dtmcli.BranchBarrier {
ti, err := dtmcli.BarrierFromQuery(c.Request.URL.Query())
logger.FatalIfError(err)
return ti
}
// MustBarrierFromGrpc 1
func MustBarrierFromGrpc(ctx context.Context) *dtmcli.BranchBarrier {
ti, err := dtmgrpc.BarrierFromGrpc(ctx)
logger.FatalIfError(err)
return ti
}