+
+typedef clib_error_t *(vat_feature_function_t) (vat_main_t * vam);
+typedef struct vat_registered_features_t
+{
+ vat_feature_function_t *function;
+ struct vat_registered_features_t *next;
+} vat_registered_features_t;
+
+
+#define VAT_REGISTER_FEATURE_FUNCTION(x) \
+ vat_registered_features_t _vat_feature_function_##x; \
+static void __vlib_add_config_function_##x (void) \
+ __attribute__((__constructor__)) ; \
+static void __vlib_add_config_function_##x (void) \
+{ \
+ vat_main_t * vam = &vat_main; \
+ _vat_feature_function_##x.next = vam->feature_function_registrations; \
+ vam->feature_function_registrations = &_vat_feature_function_##x; \
+} \
+ vat_registered_features_t _vat_feature_function_##x = \
+ { \
+ .function = x, \
+ }
+
+