ceph/src/mon/ConfigKeyService.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, 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 #ifndef CEPH_MON_CONFIG_KEY_SERVICE_H
  15 #define CEPH_MON_CONFIG_KEY_SERVICE_H
  16
  17 #include "mon/QuorumService.h"
  18
  19 class Paxos;
  20 class Monitor;
  21 namespace ceph {
  22 class Formatter;
  23 }
  24
  25 class ConfigKeyService : public QuorumService
  26 {
  27   Paxos *paxos;
  28
  29   int store_get(const string &key, bufferlist &bl);
  30   void store_put(const string &key, bufferlist &bl, Context *cb = NULL);
  31   void store_delete(const string &key, Context *cb = NULL);
  32   void store_list(stringstream &ss);
  33   void store_dump(stringstream &ss);
  34   bool store_exists(const string &key);
  35
  36   static const string STORE_PREFIX;
  37
  38 protected:
  39   void service_shutdown() override { }
  40
  41 public:
  42   ConfigKeyService(Monitor *m, Paxos *p) :
  43     QuorumService(m),
  44     paxos(p)
  45   { }
  46   ~ConfigKeyService() override { }
  47
  48
  49   /**
  50    * @defgroup ConfigKeyService_Inherited_h Inherited abstract methods
  51    * @{
  52    */
  53   void init() override { }
  54   void get_health(Formatter *f,
  55                   list<pair<health_status_t,string> >& summary,
  56                   list<pair<health_status_t,string> > *detail) override { }
  57   bool service_dispatch(MonOpRequestRef op) override;
  58
  59   void start_epoch() override { }
  60   void finish_epoch() override { }
  61   void cleanup() override { }
  62   void service_tick() override { }
  63
  64   int get_type() override {
  65     return QuorumService::SERVICE_CONFIG_KEY;
  66   }
  67
  68   string get_name() const override {
  69     return "config_key";
  70   }
  71   virtual void get_store_prefixes(set<string>& s);
  72   /**
  73    * @} // ConfigKeyService_Inherited_h
  74    */
  75 };
  76
  77 #endif // CEPH_MON_CONFIG_KEY_SERVICE_H