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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/tools/rbd_mirror/image_replayer/StateBuilder.h | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/tools/rbd_mirror/image_replayer/StateBuilder.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_replayer/StateBuilder.h b/src/tools/rbd_mirror/image_replayer/StateBuilder.h new file mode 100644 index 000000000..51cf8668c --- /dev/null +++ b/src/tools/rbd_mirror/image_replayer/StateBuilder.h @@ -0,0 +1,114 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_RBD_MIRROR_IMAGE_REPLAYER_STATE_BUILDER_H +#define CEPH_RBD_MIRROR_IMAGE_REPLAYER_STATE_BUILDER_H + +#include "include/rados/librados_fwd.hpp" +#include "cls/rbd/cls_rbd_types.h" +#include "librbd/mirror/Types.h" + +struct Context; +namespace librbd { struct ImageCtx; } + +namespace rbd { +namespace mirror { + +struct BaseRequest; +template <typename> class InstanceWatcher; +struct PoolMetaCache; +struct ProgressContext; +template <typename> class Threads; + +namespace image_sync { struct SyncPointHandler; } + +namespace image_replayer { + +struct Replayer; +struct ReplayerListener; + +template <typename ImageCtxT> +class StateBuilder { +public: + StateBuilder(const StateBuilder&) = delete; + StateBuilder& operator=(const StateBuilder&) = delete; + + virtual ~StateBuilder(); + + virtual void destroy() { + delete this; + } + + virtual void close(Context* on_finish) = 0; + + virtual bool is_disconnected() const = 0; + + bool is_local_primary() const; + bool is_remote_primary() const; + bool is_linked() const; + + virtual cls::rbd::MirrorImageMode get_mirror_image_mode() const = 0; + + virtual image_sync::SyncPointHandler* create_sync_point_handler() = 0; + void destroy_sync_point_handler(); + + virtual bool replay_requires_remote_image() const = 0; + + void close_remote_image(Context* on_finish); + + virtual BaseRequest* create_local_image_request( + Threads<ImageCtxT>* threads, + librados::IoCtx& local_io_ctx, + const std::string& global_image_id, + PoolMetaCache* pool_meta_cache, + ProgressContext* progress_ctx, + Context* on_finish) = 0; + + virtual BaseRequest* create_prepare_replay_request( + const std::string& local_mirror_uuid, + ProgressContext* progress_ctx, + bool* resync_requested, + bool* syncing, + Context* on_finish) = 0; + + virtual Replayer* create_replayer( + Threads<ImageCtxT>* threads, + InstanceWatcher<ImageCtxT>* instance_watcher, + const std::string& local_mirror_uuid, + PoolMetaCache* pool_meta_cache, + ReplayerListener* replayer_listener) = 0; + + std::string global_image_id; + + std::string local_image_id; + librbd::mirror::PromotionState local_promotion_state = + librbd::mirror::PROMOTION_STATE_UNKNOWN; + ImageCtxT* local_image_ctx = nullptr; + + std::string remote_mirror_uuid; + std::string remote_image_id; + librbd::mirror::PromotionState remote_promotion_state = + librbd::mirror::PROMOTION_STATE_UNKNOWN; + ImageCtxT* remote_image_ctx = nullptr; + +protected: + image_sync::SyncPointHandler* m_sync_point_handler = nullptr; + + StateBuilder(const std::string& global_image_id); + + void close_local_image(Context* on_finish); + +private: + virtual bool is_linked_impl() const = 0; + + void handle_close_local_image(int r, Context* on_finish); + void handle_close_remote_image(int r, Context* on_finish); +}; + +} // namespace image_replayer +} // namespace mirror +} // namespace rbd + +extern template class rbd::mirror::image_replayer::StateBuilder<librbd::ImageCtx>; + +#endif // CEPH_RBD_MIRROR_IMAGE_REPLAYER_STATE_BUILDER_H |