1 files changed, 15 insertions, 0 deletions
diff --git a/src/messages/MMDSOp.h b/src/messages/MMDSOp.h
new file mode 100644
index 000000000..53a67ea85
--- /dev/null
+++ b/src/messages/MMDSOp.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "msg/Message.h"
+
+/*
+ * MMDSOp is used to ensure that all incoming MDS-MDS
+ * messages in MDSRankDispatcher are versioned. Therefore
+ * all MDS-MDS messages must be of type MMDSOp.
+ */
+class MMDSOp : public SafeMessage {
+public:
+  template<typename... Types>
+  MMDSOp(Types&&... args)
+    : SafeMessage(std::forward<Types>(args)...) {}
+};