ceph/src/messages/MMonGlobalID.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_MMONGLOBALID_H
  16 #define CEPH_MMONGLOBALID_H
  17
  18 #include "messages/PaxosServiceMessage.h"
  19
  20 class MMonGlobalID : public PaxosServiceMessage {
  21 public:
  22   uint64_t old_max_id = 0;
  23   MMonGlobalID() : PaxosServiceMessage{MSG_MON_GLOBAL_ID, 0}
  24   {}
  25 private:
  26   ~MMonGlobalID() override {}
  27
  28 public:
  29   std::string_view get_type_name() const override { return "global_id"; }
  30   void print(ostream& out) const override {
  31     out << "global_id  (" << old_max_id << ")";
  32   }
  33
  34   void decode_payload() override {
  35     auto p = payload.cbegin();
  36     paxos_decode(p);
  37     decode(old_max_id, p);
  38   }
  39   void encode_payload(uint64_t features) override {
  40     using ceph::encode;
  41     paxos_encode();
  42     encode(old_max_id, payload);
  43   }
  44 private:
  45   template<class T, typename... Args>
  46   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  47 };
  48
  49 #endif