ceph/src/messages/MMgrOpen.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) 2016 John Spray <john.spray@redhat.com>
   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_MMGROPEN_H_
  16 #define CEPH_MMGROPEN_H_
  17
  18 #include "msg/Message.h"
  19
  20 class MMgrOpen : public Message {
  21 private:
  22   static constexpr int HEAD_VERSION = 3;
  23   static constexpr int COMPAT_VERSION = 1;
  24
  25 public:
  26
  27   std::string daemon_name;
  28   std::string service_name;  // optional; otherwise infer from entity type
  29
  30   bool service_daemon = false;
  31   std::map<std::string,std::string> daemon_metadata;
  32   std::map<std::string,std::string> daemon_status;
  33
  34   // encode map<string,map<int32_t,string>> of current config
  35   ceph::buffer::list config_bl;
  36
  37   // encode map<string,string> of compiled-in defaults
  38   ceph::buffer::list config_defaults_bl;
  39
  40   void decode_payload() override
  41   {
  42     using ceph::decode;
  43     auto p = payload.cbegin();
  44     decode(daemon_name, p);
  45     if (header.version >= 2) {
  46       decode(service_name, p);
  47       decode(service_daemon, p);
  48       if (service_daemon) {
  49         decode(daemon_metadata, p);
  50         decode(daemon_status, p);
  51       }
  52     }
  53     if (header.version >= 3) {
  54       decode(config_bl, p);
  55       decode(config_defaults_bl, p);
  56     }
  57   }
  58
  59   void encode_payload(uint64_t features) override {
  60     using ceph::encode;
  61     encode(daemon_name, payload);
  62     encode(service_name, payload);
  63     encode(service_daemon, payload);
  64     if (service_daemon) {
  65       encode(daemon_metadata, payload);
  66       encode(daemon_status, payload);
  67     }
  68     encode(config_bl, payload);
  69     encode(config_defaults_bl, payload);
  70   }
  71
  72   std::string_view get_type_name() const override { return "mgropen"; }
  73   void print(std::ostream& out) const override {
  74     out << get_type_name() << "(";
  75     if (service_name.length()) {
  76       out << service_name;
  77     } else {
  78       out << ceph_entity_type_name(get_source().type());
  79     }
  80     out << "." << daemon_name;
  81     if (service_daemon) {
  82       out << " daemon";
  83     }
  84     out << ")";
  85   }
  86
  87 private:
  88   MMgrOpen()
  89     : Message{MSG_MGR_OPEN, HEAD_VERSION, COMPAT_VERSION}
  90   {}
  91   using RefCountedObject::put;
  92   using RefCountedObject::get;
  93   template<class T, typename... Args>
  94   friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
  95 };
  96
  97 #endif
  98