// -*- 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_MOSDBOOT_H
#define CEPH_MOSDBOOT_H

#include "messages/PaxosServiceMessage.h"

#include "include/types.h"
#include "osd/osd_types.h"

class MOSDBoot : public PaxosServiceMessage {

  static const int HEAD_VERSION = 2;

 public:
  OSDSuperblock sb;
  entity_addr_t hb_addr;
  entity_addr_t cluster_addr;

  MOSDBoot() : PaxosServiceMessage(MSG_OSD_BOOT, 0, HEAD_VERSION) { }
  MOSDBoot(OSDSuperblock& s, const entity_addr_t& hb_addr_ref,
           const entity_addr_t& cluster_addr_ref)
    : PaxosServiceMessage(MSG_OSD_BOOT, s.current_epoch, HEAD_VERSION),
      sb(s),
      hb_addr(hb_addr_ref), cluster_addr(cluster_addr_ref) {
  }
  
private:
  ~MOSDBoot() { }

public:
  const char *get_type_name() const { return "osd_boot"; }
  void print(ostream& out) const {
    out << "osd_boot(osd." << sb.whoami << " v" << version << ")";
  }
  
  void encode_payload(uint64_t features) {
    paxos_encode();
    ::encode(sb, payload);
    ::encode(hb_addr, payload);
    ::encode(cluster_addr, payload);
  }
  void decode_payload() {
    bufferlist::iterator p = payload.begin();
    paxos_decode(p);
    ::decode(sb, p);
    ::decode(hb_addr, p);
    if (header.version >= 2)
      ::decode(cluster_addr, p);
  }
};

#endif
