ceph/src/tools/rbd_mirror/ServiceDaemon.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #ifndef CEPH_RBD_MIRROR_SERVICE_DAEMON_H
   5 #define CEPH_RBD_MIRROR_SERVICE_DAEMON_H
   6
   7 #include "common/Mutex.h"
   8 #include "tools/rbd_mirror/types.h"
   9 #include "tools/rbd_mirror/service_daemon/Types.h"
  10 #include <map>
  11 #include <string>
  12
  13 struct CephContext;
  14 struct Context;
  15 namespace librbd { struct ImageCtx; }
  16
  17 namespace rbd {
  18 namespace mirror {
  19
  20 template <typename> struct Threads;
  21
  22 template <typename ImageCtxT = librbd::ImageCtx>
  23 class ServiceDaemon {
  24 public:
  25   ServiceDaemon(CephContext *cct, RadosRef rados, Threads<ImageCtxT>* threads);
  26   ~ServiceDaemon();
  27
  28   int init();
  29
  30   void add_pool(int64_t pool_id, const std::string& pool_name);
  31   void remove_pool(int64_t pool_id);
  32
  33   uint64_t add_or_update_callout(int64_t pool_id, uint64_t callout_id,
  34                                  service_daemon::CalloutLevel callout_level,
  35                                  const std::string& text);
  36   void remove_callout(int64_t pool_id, uint64_t callout_id);
  37
  38   void add_or_update_attribute(int64_t pool_id, const std::string& key,
  39                                const service_daemon::AttributeValue& value);
  40   void remove_attribute(int64_t pool_id, const std::string& key);
  41
  42 private:
  43   struct Callout {
  44     service_daemon::CalloutLevel level;
  45     std::string text;
  46
  47     Callout() : level(service_daemon::CALLOUT_LEVEL_INFO) {
  48     }
  49     Callout(service_daemon::CalloutLevel level, const std::string& text)
  50       : level(level), text(text) {
  51     }
  52   };
  53   typedef std::map<uint64_t, Callout> Callouts;
  54   typedef std::map<std::string, service_daemon::AttributeValue> Attributes;
  55
  56   struct Pool {
  57     std::string name;
  58     Callouts callouts;
  59     Attributes attributes;
  60
  61     Pool(const std::string& name) : name(name) {
  62     }
  63   };
  64
  65   typedef std::map<int64_t, Pool> Pools;
  66
  67   CephContext *m_cct;
  68   RadosRef m_rados;
  69   Threads<ImageCtxT>* m_threads;
  70
  71   Mutex m_lock;
  72   Pools m_pools;
  73   uint64_t m_callout_id = service_daemon::CALLOUT_ID_NONE;
  74
  75   Context* m_timer_ctx = nullptr;
  76
  77   void schedule_update_status();
  78   void update_status();
  79 };
  80
  81 } // namespace mirror
  82 } // namespace rbd
  83
  84 extern template class rbd::mirror::ServiceDaemon<librbd::ImageCtx>;
  85
  86 #endif // CEPH_RBD_MIRROR_SERVICE_DAEMON_H