[#11] neofs-node: Improve sources

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-node/main.go

@@ -1,8 +1,15 @@
 package main
 
 import (
+	"fmt"
 	"log"
 
+	container "github.com/nspcc-dev/neofs-api-go/v2/container/grpc"
+	object "github.com/nspcc-dev/neofs-api-go/v2/object/grpc"
+	session "github.com/nspcc-dev/neofs-api-go/v2/session/grpc"
+	containerGRPC "github.com/nspcc-dev/neofs-node/pkg/network/transport/container/grpc"
+	objectGRPC "github.com/nspcc-dev/neofs-node/pkg/network/transport/object/grpc"
+	sessionGRPC "github.com/nspcc-dev/neofs-node/pkg/network/transport/session/grpc"
 	"github.com/nspcc-dev/neofs-node/pkg/util/grace"
 )
 
@@ -15,11 +22,38 @@ func fatalOnErr(err error) {
 func main() {
 	c := defaultCfg()
 
+	init_(c)
+
+	bootUp(c)
+
+	wait(c)
+
+	shutdown(c)
+}
+
+func init_(c *cfg) {
 	c.ctx = grace.NewGracefulContext(nil)
 
-	serveGRPC(c)
+	initGRPC(c)
 
+	initAccountingService(c)
+
+	container.RegisterContainerServiceServer(c.cfgGRPC.server, containerGRPC.New(new(containerSvc)))
+	session.RegisterSessionServiceServer(c.cfgGRPC.server, sessionGRPC.New(new(sessionSvc)))
+	object.RegisterObjectServiceServer(c.cfgGRPC.server, objectGRPC.New(new(objectSvc)))
+}
+
+func bootUp(c *cfg) {
+	serveGRPC(c)
+}
+
+func wait(c *cfg) {
 	<-c.ctx.Done()
+}
+
+func shutdown(c *cfg) {
+	c.cfgGRPC.server.GracefulStop()
+	fmt.Println("gRPC server stopped")
 
 	c.wg.Wait()
 }