修改函数

mblog/go.mod

@@ -2,14 +2,16 @@ module mblog
 
 go 1.24.6
 
-require github.com/go-mysql-org/go-mysql v1.13.0
+require (
+	github.com/go-mysql-org/go-mysql v1.13.0
+	github.com/pingcap/errors v0.11.5-0.20250318082626-8f80e5cb09ec
+)
 
 require (
 	filippo.io/edwards25519 v1.1.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/klauspost/compress v1.17.8 // indirect
-	github.com/pingcap/errors v0.11.5-0.20250318082626-8f80e5cb09ec // indirect
 	github.com/pingcap/log v1.1.1-0.20241212030209-7e3ff8601a2a // indirect
 	github.com/pingcap/tidb/pkg/parser v0.0.0-20250421232622-526b2c79173d // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect

mblog/mbmain.go

@@ -1,49 +1,78 @@
 package main
 
 import (
+	"context"
 	"flag"
 	"fmt"
-	"mblog/app"
 	"os"
-	"os/signal"
+
-	"runtime"
+	"github.com/go-mysql-org/go-mysql/mysql"
-	"syscall"
+	"github.com/go-mysql-org/go-mysql/replication"
+	"github.com/pingcap/errors"
 )
 
-var myHost = flag.String("host", "127.0.0.1", "MySQL replication host")
+var host = flag.String("host", "127.0.0.1", "MySQL host")
-var myPort = flag.Int("port", 3306, "MySQL replication port")
+var port = flag.Int("port", 3306, "MySQL port")
-var myUser = flag.String("user", "root", "MySQL replication user")
+var user = flag.String("user", "root", "MySQL user, must have replication privilege")
-var myPass = flag.String("pass", "****", "MySQL replication pass")
+var password = flag.String("password", "****", "MySQL password")
-var serverId = flag.Int("server_id", 1111, "MySQL replication server id")
+
+var flavor = flag.String("flavor", "mysql", "Flavor: mysql or mariadb")
+
+var file = flag.String("file", "mysql-bin.000032", "Binlog filename")
+var pos = flag.Int("pos", 3070, "Binlog position")
+
+var semiSync = flag.Bool("semisync", false, "Support semi sync")
+var backupPath = flag.String("backup_path", "", "backup path to store binlog files")
+
+var rawMode = flag.Bool("raw", false, "Use raw mode")
 
 func main() {
-	sc := make(chan os.Signal, 1)
-	signal.Notify(sc,
-		os.Kill,
-		os.Interrupt,
-		syscall.SIGHUP,
-		syscall.SIGQUIT,
-		syscall.SIGINT,
-		syscall.SIGTERM,
-	)
-
-	runtime.GOMAXPROCS(runtime.NumCPU()/4 + 1)
 	flag.Parse()
-	cfg := &app.Config{
+
-		*myHost,
+	cfg := replication.BinlogSyncerConfig{
-		*myPort,
+		ServerID: 101,
-		*myUser,
+		Flavor:   *flavor,
-		*myPass,
+
-		*serverId,
+		Host:            *host,
-		"mysql-bin.000032",
+		Port:            uint16(*port),
-		3070,
+		User:            *user,
+		Password:        *password,
+		RawModeEnabled:  *rawMode,
+		SemiSyncEnabled: *semiSync,
+		UseDecimal:      true,
 	}
-	srv := &app.Server{Cfg: cfg}
-	go srv.Run()
 
-	select {
+	b := replication.NewBinlogSyncer(cfg)
-	case n := <-sc:
+
-		srv.Quit()
+	pos := mysql.Position{Name: *file, Pos: uint32(*pos)}
-		fmt.Printf("receive signal %v, closing", n)
+	if len(*backupPath) > 0 {
+		// Backup will always use RawMode.
+		err := b.StartBackup(*backupPath, pos, 0)
+		if err != nil {
+			fmt.Printf("Start backup error: %v\n", errors.ErrorStack(err))
+			return
+		}
+	} else {
+		s, err := b.StartSync(pos)
+		if err != nil {
+			fmt.Printf("Start sync error: %v\n", errors.ErrorStack(err))
+			return
+		}
+
+		for {
+			e, err := s.GetEvent(context.Background())
+			if err != nil {
+				// Try to output all left events
+				events := s.DumpEvents()
+				for _, e := range events {
+					e.Dump(os.Stdout)
+				}
+				fmt.Printf("Get event error: %v\n", errors.ErrorStack(err))
+				return
+			}
+
+			e.Dump(os.Stdout)
+		}
 	}
+
 }