diff --git a/a8/udplistener.cc b/a8/udplistener.cc
index 5e8df4a..7d5252a 100644
--- a/a8/udplistener.cc
+++ b/a8/udplistener.cc
@@ -106,8 +106,10 @@ namespace a8
                                      0,
                                      (struct sockaddr*)&destAddr,
                                      (socklen_t*)&addrLen);
-                if(ret > 0){
+                if(ret > 0) {
+                    #if 0
                     master->OnSocketRead(recv_buf, ret);
+                    #endif
                 }
             }
         }
@@ -126,10 +128,6 @@ namespace a8
         impl_ = nullptr;
     }
 
-    void UdpListener::OnSocketRead(char*, unsigned int)
-    {
-    }
-
     void UdpListener::Open()
     {
         if (!IsActive()) {
@@ -149,4 +147,14 @@ namespace a8
         return impl_->IsActive();
     }
 
+    void UdpListener::SendUdpPacket(UdpPacket* pkt)
+    {
+
+    }
+
+    void UdpListener::OnRecvUdpPacket(UdpPacket* pkt)
+    {
+
+    }
+
 }
diff --git a/a8/udplistener.h b/a8/udplistener.h
index 509d25e..5f3ec28 100644
--- a/a8/udplistener.h
+++ b/a8/udplistener.h
@@ -2,6 +2,12 @@
 
 namespace a8
 {
+    struct UdpPacket
+    {
+        char* buf = nullptr;
+        int buf_len = 0;
+        sockaddr_in remote_addr;
+    };
 
     struct UdpListenerImpl;
     class UdpListener
@@ -15,10 +21,11 @@ namespace a8
         UdpListener();
         ~UdpListener();
 
-        virtual void OnSocketRead(char*, unsigned int);
         void Open();
         void Close();
         bool IsActive();
+        virtual void SendUdpPacket(UdpPacket* pkt);
+        virtual void OnRecvUdpPacket(UdpPacket* pkt);
 
     private:
         a8::UdpListenerImpl* impl_ = nullptr;