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
  20 #include "include/types.h"
  21
  22
  23 class MMgrBeacon : public PaxosServiceMessage {
  24
  25   static const int HEAD_VERSION = 2;
  26   static const int COMPAT_VERSION = 1;
  27
  28 protected:
  29   uint64_t gid;
  30   entity_addr_t server_addr;
  31   bool available;
  32   std::string name;
  33   uuid_d fsid;
  34
  35 public:
  36   MMgrBeacon()
  37     : PaxosServiceMessage(MSG_MGR_BEACON, 0, HEAD_VERSION, COMPAT_VERSION),
  38       gid(0), available(false)
  39   {
  40   }
  41
  42   MMgrBeacon(const uuid_d& fsid_, uint64_t gid_, const std::string &name_,
  43              entity_addr_t server_addr_, bool available_)
  44     : PaxosServiceMessage(MSG_MGR_BEACON, 0, HEAD_VERSION, COMPAT_VERSION),
  45       gid(gid_), server_addr(server_addr_), available(available_), name(name_),
  46       fsid(fsid_)
  47   {
  48   }
  49
  50   uint64_t get_gid() const { return gid; }
  51   entity_addr_t get_server_addr() const { return server_addr; }
  52   bool get_available() const { return available; }
  53   const std::string& get_name() const { return name; }
  54   const uuid_d& get_fsid() const { return fsid; }
  55
  56 private:
  57   ~MMgrBeacon() override {}
  58
  59 public:
  60
  61   const char *get_type_name() const override { return "mgrbeacon"; }
  62
  63   void print(ostream& out) const override {
  64     out << get_type_name() << " mgr." << name << "(" << fsid << ","
  65         << gid << ", " << server_addr << ", " << available << ")";
  66   }
  67
  68   void encode_payload(uint64_t features) override {
  69     paxos_encode();
  70     ::encode(server_addr, payload, features);
  71     ::encode(gid, payload);
  72     ::encode(available, payload);
  73     ::encode(name, payload);
  74     ::encode(fsid, payload);
  75   }
  76   void decode_payload() override {
  77     bufferlist::iterator p = payload.begin();
  78     paxos_decode(p);
  79     ::decode(server_addr, p);
  80     ::decode(gid, p);
  81     ::decode(available, p);
  82     ::decode(name, p);
  83     if (header.version >= 2) {
  84       ::decode(fsid, p);
  85     }
  86   }
  87 };
  88
  89 #endif