ceph/src/messages/MOSDMarkMeDown.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) 2013 Inktank Storage, Inc.
   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_MOSDMARKMEDOWN_H
  16 #define CEPH_MOSDMARKMEDOWN_H
  17
  18 #include "messages/PaxosServiceMessage.h"
  19
  20 class MOSDMarkMeDown final : public PaxosServiceMessage {
  21 private:
  22   static constexpr int HEAD_VERSION = 3;
  23   static constexpr int COMPAT_VERSION = 3;
  24
  25  public:
  26   uuid_d fsid;
  27   int32_t target_osd;
  28   entity_addrvec_t target_addrs;
  29   epoch_t epoch = 0;
  30   bool request_ack = false;          // ack requested
  31
  32   MOSDMarkMeDown()
  33     : PaxosServiceMessage{MSG_OSD_MARK_ME_DOWN, 0,
  34                           HEAD_VERSION, COMPAT_VERSION} { }
  35   MOSDMarkMeDown(const uuid_d &fs, int osd, const entity_addrvec_t& av,
  36                  epoch_t e, bool request_ack)
  37     : PaxosServiceMessage{MSG_OSD_MARK_ME_DOWN, e,
  38                           HEAD_VERSION, COMPAT_VERSION},
  39       fsid(fs), target_osd(osd), target_addrs(av),
  40       epoch(e), request_ack(request_ack) {}
  41  private:
  42   ~MOSDMarkMeDown() final {}
  43
  44 public:
  45   epoch_t get_epoch() const { return epoch; }
  46
  47   void decode_payload() override {
  48     using ceph::decode;
  49     auto p = payload.cbegin();
  50     paxos_decode(p);
  51     assert(header.version >= 3);
  52     decode(fsid, p);
  53     decode(target_osd, p);
  54     decode(target_addrs, p);
  55     decode(epoch, p);
  56     decode(request_ack, p);
  57   }
  58
  59   void encode_payload(uint64_t features) override {
  60     using ceph::encode;
  61     paxos_encode();
  62     assert(HAVE_FEATURE(features, SERVER_NAUTILUS));
  63     header.version = HEAD_VERSION;
  64     header.compat_version = COMPAT_VERSION;
  65     encode(fsid, payload);
  66     encode(target_osd, payload, features);
  67     encode(target_addrs, payload, features);
  68     encode(epoch, payload);
  69     encode(request_ack, payload);
  70   }
  71
  72   std::string_view get_type_name() const override { return "MOSDMarkMeDown"; }
  73   void print(std::ostream& out) const override {
  74     out << "MOSDMarkMeDown("
  75         << "request_ack=" << request_ack
  76         << ", osd." << target_osd
  77         << ", " << target_addrs
  78         << ", fsid=" << fsid
  79         << ")";
  80   }
  81 private:
  82   template<class T, typename... Args>
  83   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  84 };
  85
  86 #endif