diff --git a/app.go b/app.go
index c7e3ff5..0e97be7 100644
--- a/app.go
+++ b/app.go
@@ -39,6 +39,8 @@ type App interface {
 	GetOrmDb(string) *gorm.DB
 	RegisterCaHandle(c string, a string, handle GinHandlerFunc)
 	GetPid() int
+	AsyncLock(string, *AsyncTask)
+	AsyncUnLock(string)
 }
 
 type UserApp interface {
@@ -384,6 +386,14 @@ func (this *app) GetPid() int {
 	return this.pid
 }
 
+func (this *app) AsyncLock(key string, task *AsyncTask) {
+
+}
+
+func (this *app) AsyncUnLock(key string) {
+
+}
+
 func parseArgs() (int, int) {
 	args := os.Args[1:]
 	if len(args) <= 0 {