// -*- 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_MLOGACK_H
#define CEPH_MLOGACK_H

#include <iostream>
#include <string>
#include <string_view>

#include "include/uuid.h"

#include "msg/Message.h"

class MLogAck final : public Message {
public:
  uuid_d fsid;
  version_t last = 0;
  std::string channel;

  MLogAck() : Message{MSG_LOGACK} {}
  MLogAck(uuid_d& f, version_t l) : Message{MSG_LOGACK}, fsid(f), last(l) {}
private:
  ~MLogAck() final {}

public:
  std::string_view get_type_name() const override { return "log_ack"; }
  void print(std::ostream& out) const override {
    out << "log(last " << last << ")";
  }

  void encode_payload(uint64_t features) override {
    using ceph::encode;
    encode(fsid, payload);
    encode(last, payload);
    encode(channel, payload);
  }
  void decode_payload() override {
    using ceph::decode;
    auto p = payload.cbegin();
    decode(fsid, p);
    decode(last, p);
    if (!p.end())
      decode(channel, p);
  }
private:
  template<class T, typename... Args>
  friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};

#endif