diff --git a/api/zi_module.hpp b/api/zi_module.hpp
index 87d578e..ecbc779 100644
--- a/api/zi_module.hpp
+++ b/api/zi_module.hpp
@@ -8,6 +8,16 @@
 namespace iflytop {
 using namespace std;
 
+#define ACTION_NONE ;
+#define PROCESS_REG(param_id, readaction, writeacton) \
+  case param_id: {                                    \
+    if (read) {                                       \
+      readaction;                                     \
+    } else {                                          \
+      writeacton;                                     \
+    }                                                 \
+  }
+
 class ModuleCMDExecStatus {
  public:
   int32_t exec_status = 0;
@@ -76,4 +86,4 @@ class ZIModule {
   virtual int32_t module_flush_cfg() { return err::koperation_not_support; }
   virtual int32_t module_active_cfg() { return err::koperation_not_support; }
 };
-}  // namespace iflytop
\ No newline at end of file
+}  // namespace iflytop