ceph/src/messages/MLogAck.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_MLOGACK_H
  16 #define CEPH_MLOGACK_H
  17
  18 #include <iostream>
  19 #include <string>
  20 #include <string_view>
  21
  22 #include "include/uuid.h"
  23
  24 #include "msg/Message.h"
  25
  26 class MLogAck : public Message {
  27 public:
  28   uuid_d fsid;
  29   version_t last = 0;
  30   std::string channel;
  31
  32   MLogAck() : Message{MSG_LOGACK} {}
  33   MLogAck(uuid_d& f, version_t l) : Message{MSG_LOGACK}, fsid(f), last(l) {}
  34 private:
  35   ~MLogAck() override {}
  36
  37 public:
  38   std::string_view get_type_name() const override { return "log_ack"; }
  39   void print(std::ostream& out) const override {
  40     out << "log(last " << last << ")";
  41   }
  42
  43   void encode_payload(uint64_t features) override {
  44     using ceph::encode;
  45     encode(fsid, payload);
  46     encode(last, payload);
  47     encode(channel, payload);
  48   }
  49   void decode_payload() override {
  50     using ceph::decode;
  51     auto p = payload.cbegin();
  52     decode(fsid, p);
  53     decode(last, p);
  54     if (!p.end())
  55       decode(channel, p);
  56   }
  57 private:
  58   template<class T, typename... Args>
  59   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  60 };
  61
  62 #endif