ceph/src/messages/MFSMapUser.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  */
  13
  14
  15 #ifndef CEPH_MFSMAPCOMPACT_H
  16 #define CEPH_MFSMAPCOMPACT_H
  17
  18 #include "msg/Message.h"
  19 #include "mds/FSMapUser.h"
  20 #include "include/ceph_features.h"
  21
  22 class MFSMapUser final : public Message {
  23 public:
  24   epoch_t epoch;
  25
  26   version_t get_epoch() const { return epoch; }
  27   const FSMapUser& get_fsmap() const { return fsmap; }
  28
  29   MFSMapUser() :
  30     Message{CEPH_MSG_FS_MAP_USER}, epoch(0) {}
  31   MFSMapUser(const uuid_d &f, const FSMapUser &fsmap_) :
  32     Message{CEPH_MSG_FS_MAP_USER},
  33     epoch(fsmap_.epoch),
  34     fsmap{fsmap_}
  35   {}
  36 private:
  37   FSMapUser fsmap;
  38
  39   ~MFSMapUser() final {}
  40
  41 public:
  42   std::string_view get_type_name() const override { return "fsmap.user"; }
  43   void print(std::ostream& out) const override {
  44     out << "fsmap.user(e " << epoch << ")";
  45   }
  46
  47   // marshalling
  48   void decode_payload() override {
  49     using ceph::decode;
  50     auto p = payload.cbegin();
  51     decode(epoch, p);
  52     decode(fsmap, p);
  53   }
  54   void encode_payload(uint64_t features) override {
  55     using ceph::encode;
  56     encode(epoch, payload);
  57     encode(fsmap, payload, features);
  58   }
  59 private:
  60   template<class T, typename... Args>
  61   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  62 };
  63
  64 #endif