ceph/src/messages/MMgrBeacon.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_MMGRBEACON_H
  16 #define CEPH_MMGRBEACON_H
  17
  18 #include "messages/PaxosServiceMessage.h"
  19 #include "mon/MonCommand.h"
  20
  21 #include "include/types.h"
  22
  23
  24 class MMgrBeacon : public PaxosServiceMessage {
  25
  26   static const int HEAD_VERSION = 5;
  27   static const int COMPAT_VERSION = 1;
  28
  29 protected:
  30   uint64_t gid;
  31   entity_addr_t server_addr;
  32   bool available;
  33   std::string name;
  34   uuid_d fsid;
  35   std::set<std::string> available_modules;
  36   map<string,string> metadata; ///< misc metadata about this osd
  37
  38   // Only populated during activation
  39   std::vector<MonCommand> command_descs;
  40
  41 public:
  42   MMgrBeacon()
  43     : PaxosServiceMessage(MSG_MGR_BEACON, 0, HEAD_VERSION, COMPAT_VERSION),
  44       gid(0), available(false)
  45   {
  46   }
  47
  48   MMgrBeacon(const uuid_d& fsid_, uint64_t gid_, const std::string &name_,
  49              entity_addr_t server_addr_, bool available_,
  50              const std::set<std::string>& module_list,
  51              map<string,string>&& metadata)
  52     : PaxosServiceMessage(MSG_MGR_BEACON, 0, HEAD_VERSION, COMPAT_VERSION),
  53       gid(gid_), server_addr(server_addr_), available(available_), name(name_),
  54       fsid(fsid_), available_modules(module_list), metadata(std::move(metadata))
  55   {
  56   }
  57
  58   uint64_t get_gid() const { return gid; }
  59   entity_addr_t get_server_addr() const { return server_addr; }
  60   bool get_available() const { return available; }
  61   const std::string& get_name() const { return name; }
  62   const uuid_d& get_fsid() const { return fsid; }
  63   std::set<std::string>& get_available_modules() { return available_modules; }
  64   const std::map<std::string,std::string>& get_metadata() const {
  65     return metadata;
  66   }
  67
  68   void set_command_descs(const std::vector<MonCommand> &cmds)
  69   {
  70     command_descs = cmds;
  71   }
  72
  73   const std::vector<MonCommand> &get_command_descs()
  74   {
  75     return command_descs;
  76   }
  77
  78 private:
  79   ~MMgrBeacon() override {}
  80
  81 public:
  82
  83   const char *get_type_name() const override { return "mgrbeacon"; }
  84
  85   void print(ostream& out) const override {
  86     out << get_type_name() << " mgr." << name << "(" << fsid << ","
  87         << gid << ", " << server_addr << ", " << available
  88         << ")";
  89   }
  90
  91   void encode_payload(uint64_t features) override {
  92     paxos_encode();
  93     ::encode(server_addr, payload, features);
  94     ::encode(gid, payload);
  95     ::encode(available, payload);
  96     ::encode(name, payload);
  97     ::encode(fsid, payload);
  98     ::encode(available_modules, payload);
  99     ::encode(command_descs, payload);
 100     ::encode(metadata, payload);
 101   }
 102   void decode_payload() override {
 103     bufferlist::iterator p = payload.begin();
 104     paxos_decode(p);
 105     ::decode(server_addr, p);
 106     ::decode(gid, p);
 107     ::decode(available, p);
 108     ::decode(name, p);
 109     if (header.version >= 2) {
 110       ::decode(fsid, p);
 111     }
 112     if (header.version >= 3) {
 113       ::decode(available_modules, p);
 114     }
 115     if (header.version >= 4) {
 116       ::decode(command_descs, p);
 117     }
 118     if (header.version >= 5) {
 119       ::decode(metadata, p);
 120     }
 121   }
 122 };
 123
 124 #endif