thinking 1 level

brain.go

@@ -2,14 +2,26 @@ package brain
 
 import (
 	context "context"
+	"log"
+	"sync/atomic"
 
 	"github.com/474420502/brain/pb"
 )
 
 // UnimplementedBrainServiceServer can be embedded to have forward compatible implementations.
 type BrainService struct {
+	IsRunningMain atomic.Int64
 }
 
-func (*BrainService) Add(context.Context, *pb.Request) (*pb.Response, error) {
+func (brain *BrainService) Main() {
+	if brain.IsRunningMain.CompareAndSwap(0, 1) {
+		defer brain.IsRunningMain.Swap(0)
+
+	} else {
+		log.Println("Main is Running")
+	}
+}
+
+func (*BrainService) Add(cxt context.Context, req *pb.Request) (*pb.Response, error) {
 	return &pb.Response{Code: 200}, nil
 }

config.go

@@ -0,0 +1,5 @@
+package brain
+
+// Config 配置
+type Config struct {
+}

state.go

@@ -0,0 +1,4 @@
+package brain
+
+type State struct {
+}