1

pkg/common/startrpc/start.go

@@ -99,13 +99,6 @@ func Start[T any](ctx context.Context, disc *conf.Discovery, prometheusConfig *c
 	sigs := make(chan os.Signal, 1)
 	signal.Notify(sigs, syscall.SIGTERM)
 
-	var gsrv grpcServiceRegistrar
-
-	err = rpcFn(ctx, config, client, &gsrv)
-	if err != nil {
-		return err
-	}
-
 	ctx, cancel := context.WithCancelCause(ctx)
 
 	if prometheusListenAddr != "" {
@@ -137,38 +130,51 @@ func Start[T any](ctx context.Context, disc *conf.Discovery, prometheusConfig *c
 		}()
 	}
 
-	var rpcGracefulStop chan struct{}
+	var (
+		rpcServer       *grpc.Server
+		rpcGracefulStop chan struct{}
+	)
 
-	if len(gsrv.services) > 0 {
-		rpcListener, rpcPort, err := listenTCP(rpcListenAddr)
+	onGrpcServiceRegistrar := func(desc *grpc.ServiceDesc, impl any) {
+		if rpcServer != nil {
+			rpcServer.RegisterService(desc, impl)
+			return
+		}
+		rpcListener, err := net.Listen("tcp", rpcListenAddr)
 		if err != nil {
-			return err
-		}
-		srv := grpc.NewServer(options...)
-
-		for _, service := range gsrv.services {
-			srv.RegisterService(service.desc, service.impl)
-		}
-		grpcOpt := grpc.WithTransportCredentials(insecure.NewCredentials())
-		if err := client.Register(ctx, rpcRegisterName, registerIP, rpcPort, grpcOpt); err != nil {
-			return err
+			cancel(fmt.Errorf("listen rpc %s %s %w", rpcRegisterName, rpcListenAddr, err))
+			return
 		}
 
+		rpcServer = grpc.NewServer(options...)
+		rpcServer.RegisterService(desc, impl)
 		rpcGracefulStop = make(chan struct{})
+		rpcPort := rpcListener.Addr().(*net.TCPAddr).Port
+		log.ZDebug(ctx, "rpc start register", "rpcRegisterName", rpcRegisterName, "registerIP", registerIP, "rpcPort", rpcPort)
+		grpcOpt := grpc.WithTransportCredentials(insecure.NewCredentials())
+		rpcGracefulStop = make(chan struct{})
+		go func() {
+			<-ctx.Done()
+			rpcServer.GracefulStop()
+			close(rpcGracefulStop)
+		}()
+		if err := client.Register(ctx, rpcRegisterName, registerIP, rpcListener.Addr().(*net.TCPAddr).Port, grpcOpt); err != nil {
+			cancel(fmt.Errorf("rpc register %s %w", rpcRegisterName, err))
+			return
+		}
 
 		go func() {
-			err := srv.Serve(rpcListener)
+			err := rpcServer.Serve(rpcListener)
 			if err == nil {
 				err = fmt.Errorf("serve end")
 			}
 			cancel(fmt.Errorf("rpc %s %w", rpcRegisterName, err))
 		}()
+	}
 
-		go func() {
-			<-ctx.Done()
-			srv.GracefulStop()
-			close(rpcGracefulStop)
-		}()
+	err = rpcFn(ctx, config, client, &grpcServiceRegistrar{onRegisterService: onGrpcServiceRegistrar})
+	if err != nil {
+		return err
 	}
 
 	select {
@@ -220,18 +226,10 @@ func prommetricsStreamInterceptor(rpcRegisterName string) grpc.ServerOption {
 	return grpc.ChainStreamInterceptor()
 }
 
-type grpcService struct {
-	desc *grpc.ServiceDesc
-	impl any
-}
-
 type grpcServiceRegistrar struct {
-	services []*grpcService
+	onRegisterService func(desc *grpc.ServiceDesc, impl any)
 }
 
 func (x *grpcServiceRegistrar) RegisterService(desc *grpc.ServiceDesc, impl any) {
-	x.services = append(x.services, &grpcService{
-		desc: desc,
-		impl: impl,
-	})
+	x.onRegisterService(desc, impl)
 }