ceph/src/messages/MOSDBoot.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_MOSDBOOT_H
  16 #define CEPH_MOSDBOOT_H
  17
  18 #include "messages/PaxosServiceMessage.h"
  19
  20 #include "include/ceph_features.h"
  21 #include "include/types.h"
  22 #include "osd/osd_types.h"
  23
  24 class MOSDBoot : public PaxosServiceMessage {
  25 private:
  26   static constexpr int HEAD_VERSION = 7;
  27   static constexpr int COMPAT_VERSION = 7;
  28
  29  public:
  30   OSDSuperblock sb;
  31   entity_addrvec_t hb_back_addrs, hb_front_addrs;
  32   entity_addrvec_t cluster_addrs;
  33   epoch_t boot_epoch;  // last epoch this daemon was added to the map (if any)
  34   map<string,string> metadata; ///< misc metadata about this osd
  35   uint64_t osd_features;
  36
  37   MOSDBoot()
  38     : PaxosServiceMessage{MSG_OSD_BOOT, 0, HEAD_VERSION, COMPAT_VERSION},
  39       boot_epoch(0), osd_features(0)
  40   { }
  41   MOSDBoot(OSDSuperblock& s, epoch_t e, epoch_t be,
  42            const entity_addrvec_t& hb_back_addr_ref,
  43            const entity_addrvec_t& hb_front_addr_ref,
  44            const entity_addrvec_t& cluster_addr_ref,
  45            uint64_t feat)
  46     : PaxosServiceMessage{MSG_OSD_BOOT, e, HEAD_VERSION, COMPAT_VERSION},
  47       sb(s),
  48       hb_back_addrs(hb_back_addr_ref),
  49       hb_front_addrs(hb_front_addr_ref),
  50       cluster_addrs(cluster_addr_ref),
  51       boot_epoch(be),
  52       osd_features(feat)
  53   { }
  54
  55 private:
  56   ~MOSDBoot() override { }
  57
  58 public:
  59   std::string_view get_type_name() const override { return "osd_boot"; }
  60   void print(ostream& out) const override {
  61     out << "osd_boot(osd." << sb.whoami << " booted " << boot_epoch
  62         << " features " << osd_features
  63         << " v" << version << ")";
  64   }
  65
  66   void encode_payload(uint64_t features) override {
  67     header.version = HEAD_VERSION;
  68     header.compat_version = COMPAT_VERSION;
  69     using ceph::encode;
  70     paxos_encode();
  71     if (!HAVE_FEATURE(features, SERVER_NAUTILUS)) {
  72       header.version = 6;
  73       header.compat_version = 6;
  74       encode(sb, payload);
  75       hb_back_addrs.legacy_addr().encode(payload, features);
  76       cluster_addrs.legacy_addr().encode(payload, features);
  77       encode(boot_epoch, payload);
  78       hb_front_addrs.legacy_addr().encode(payload, features);
  79       encode(metadata, payload);
  80       encode(osd_features, payload);
  81       return;
  82     }
  83     encode(sb, payload);
  84     encode(hb_back_addrs, payload, features);
  85     encode(cluster_addrs, payload, features);
  86     encode(boot_epoch, payload);
  87     encode(hb_front_addrs, payload, features);
  88     encode(metadata, payload);
  89     encode(osd_features, payload);
  90   }
  91   void decode_payload() override {
  92     auto p = payload.cbegin();
  93     paxos_decode(p);
  94     if (header.version < 7) {
  95       entity_addr_t a;
  96       decode(sb, p);
  97       decode(a, p);
  98       hb_back_addrs = entity_addrvec_t(a);
  99       decode(a, p);
 100       cluster_addrs = entity_addrvec_t(a);
 101       decode(boot_epoch, p);
 102       decode(a, p);
 103       hb_front_addrs = entity_addrvec_t(a);
 104       decode(metadata, p);
 105       decode(osd_features, p);
 106       return;
 107     }
 108     decode(sb, p);
 109     decode(hb_back_addrs, p);
 110     decode(cluster_addrs, p);
 111     decode(boot_epoch, p);
 112     decode(hb_front_addrs, p);
 113     decode(metadata, p);
 114     decode(osd_features, p);
 115   }
 116 private:
 117   template<class T, typename... Args>
 118   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
 119 };
 120
 121 #endif