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diff --git a/src/messages/MFSMap.h b/src/messages/MFSMap.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+
+#ifndef CEPH_MFSMAP_H
+#define CEPH_MFSMAP_H
+
+#include "msg/Message.h"
+#include "mds/FSMap.h"
+#include "include/ceph_features.h"
+
+class MFSMap : public MessageInstance<MFSMap> {
+public:
+ friend factory;
+
+ epoch_t epoch;
+ bufferlist encoded;
+
+ version_t get_epoch() const { return epoch; }
+ const FSMap& get_fsmap() const {return fsmap;}
+
+ MFSMap() :
+ MessageInstance(CEPH_MSG_FS_MAP), epoch(0) {}
+ MFSMap(const uuid_d &f, const FSMap &fsmap_) :
+ MessageInstance(CEPH_MSG_FS_MAP), epoch(fsmap_.get_epoch())
+ {
+ fsmap = fsmap_;
+ }
+private:
+ FSMap fsmap;
+
+ ~MFSMap() override {}
+
+public:
+ std::string_view get_type_name() const override { return "fsmap"; }
+ void print(ostream& out) const override {
+ out << "fsmap(e " << epoch << ")";
+ }
+
+ // marshalling
+ void decode_payload() override {
+ auto p = payload.cbegin();
+ decode(epoch, p);
+ decode(fsmap, p);
+ }
+ void encode_payload(uint64_t features) override {
+ using ceph::encode;
+ encode(epoch, payload);
+ encode(fsmap, payload, features);
+ }
+};
+
+#endif