ceph/src/tools/rbd_mirror/image_replayer/snapshot/StateBuilder.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_IMAGE_REPLAYER_SNAPSHOT_STATE_BUILDER_H
   5 #define CEPH_RBD_MIRROR_IMAGE_REPLAYER_SNAPSHOT_STATE_BUILDER_H
   6
   7 #include "tools/rbd_mirror/image_replayer/StateBuilder.h"
   8 #include <string>
   9
  10 struct Context;
  11
  12 namespace librbd {
  13
  14 struct ImageCtx;
  15
  16 namespace mirror {
  17 namespace snapshot {
  18
  19 template <typename> class ImageMeta;
  20
  21 } // namespace snapshot
  22 } // namespace mirror
  23 } // namespace librbd
  24
  25 namespace rbd {
  26 namespace mirror {
  27 namespace image_replayer {
  28 namespace snapshot {
  29
  30 template <typename> class SyncPointHandler;
  31
  32 template <typename ImageCtxT>
  33 class StateBuilder : public image_replayer::StateBuilder<ImageCtxT> {
  34 public:
  35   static StateBuilder* create(const std::string& global_image_id) {
  36     return new StateBuilder(global_image_id);
  37   }
  38
  39   StateBuilder(const std::string& global_image_id);
  40   ~StateBuilder() override;
  41
  42   void close(Context* on_finish) override;
  43
  44   bool is_disconnected() const override;
  45
  46   cls::rbd::MirrorImageMode get_mirror_image_mode() const override;
  47
  48   image_sync::SyncPointHandler* create_sync_point_handler() override;
  49
  50   bool replay_requires_remote_image() const override {
  51     return true;
  52   }
  53
  54   BaseRequest* create_local_image_request(
  55       Threads<ImageCtxT>* threads,
  56       librados::IoCtx& local_io_ctx,
  57       const std::string& global_image_id,
  58       PoolMetaCache* pool_meta_cache,
  59       ProgressContext* progress_ctx,
  60       Context* on_finish) override;
  61
  62   BaseRequest* create_prepare_replay_request(
  63       const std::string& local_mirror_uuid,
  64       ProgressContext* progress_ctx,
  65       bool* resync_requested,
  66       bool* syncing,
  67       Context* on_finish) override;
  68
  69   image_replayer::Replayer* create_replayer(
  70       Threads<ImageCtxT>* threads,
  71       InstanceWatcher<ImageCtxT>* instance_watcher,
  72       const std::string& local_mirror_uuid,
  73       PoolMetaCache* pool_meta_cache,
  74       ReplayerListener* replayer_listener) override;
  75
  76   SyncPointHandler<ImageCtxT>* sync_point_handler = nullptr;
  77
  78   std::string remote_mirror_peer_uuid;
  79
  80   librbd::mirror::snapshot::ImageMeta<ImageCtxT>* local_image_meta = nullptr;
  81
  82 private:
  83   bool is_linked_impl() const override;
  84 };
  85
  86 } // namespace snapshot
  87 } // namespace image_replayer
  88 } // namespace mirror
  89 } // namespace rbd
  90
  91 extern template class rbd::mirror::image_replayer::snapshot::StateBuilder<librbd::ImageCtx>;
  92
  93 #endif // CEPH_RBD_MIRROR_IMAGE_REPLAYER_SNAPSHOT_STATE_BUILDER_H