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Diffstat (limited to 'src/tools/rbd_mirror/image_replayer/PrepareLocalImageRequest.h')
-rw-r--r-- | src/tools/rbd_mirror/image_replayer/PrepareLocalImageRequest.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_replayer/PrepareLocalImageRequest.h b/src/tools/rbd_mirror/image_replayer/PrepareLocalImageRequest.h new file mode 100644 index 000000000..6372169ff --- /dev/null +++ b/src/tools/rbd_mirror/image_replayer/PrepareLocalImageRequest.h @@ -0,0 +1,115 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef RBD_MIRROR_IMAGE_REPLAYER_PREPARE_LOCAL_IMAGE_REQUEST_H +#define RBD_MIRROR_IMAGE_REPLAYER_PREPARE_LOCAL_IMAGE_REQUEST_H + +#include "include/buffer.h" +#include "include/rados/librados_fwd.hpp" +#include "cls/rbd/cls_rbd_types.h" +#include "librbd/mirror/Types.h" +#include <string> + +struct Context; + +namespace librbd { +struct ImageCtx; +namespace asio { struct ContextWQ; } +} // namespace librbd + +namespace rbd { +namespace mirror { +namespace image_replayer { + +template <typename> class StateBuilder; + +template <typename ImageCtxT = librbd::ImageCtx> +class PrepareLocalImageRequest { +public: + static PrepareLocalImageRequest *create( + librados::IoCtx &io_ctx, + const std::string &global_image_id, + std::string *local_image_name, + StateBuilder<ImageCtxT>** state_builder, + librbd::asio::ContextWQ *work_queue, + Context *on_finish) { + return new PrepareLocalImageRequest(io_ctx, global_image_id, + local_image_name, state_builder, + work_queue, on_finish); + } + + PrepareLocalImageRequest( + librados::IoCtx &io_ctx, + const std::string &global_image_id, + std::string *local_image_name, + StateBuilder<ImageCtxT>** state_builder, + librbd::asio::ContextWQ *work_queue, + Context *on_finish) + : m_io_ctx(io_ctx), m_global_image_id(global_image_id), + m_local_image_name(local_image_name), m_state_builder(state_builder), + m_work_queue(work_queue), m_on_finish(on_finish) { + } + + void send(); + +private: + /** + * @verbatim + * + * <start> + * | + * v + * GET_LOCAL_IMAGE_ID + * | + * v + * GET_LOCAL_IMAGE_NAME + * | + * v + * GET_MIRROR_INFO + * | + * | (if the image mirror state is CREATING) + * v + * TRASH_MOVE + * | + * v + * <finish> + * + * @endverbatim + */ + + librados::IoCtx &m_io_ctx; + std::string m_global_image_id; + std::string *m_local_image_name; + StateBuilder<ImageCtxT>** m_state_builder; + librbd::asio::ContextWQ *m_work_queue; + Context *m_on_finish; + + bufferlist m_out_bl; + std::string m_local_image_id; + cls::rbd::MirrorImage m_mirror_image; + librbd::mirror::PromotionState m_promotion_state; + std::string m_primary_mirror_uuid; + + void get_local_image_id(); + void handle_get_local_image_id(int r); + + void get_local_image_name(); + void handle_get_local_image_name(int r); + + void get_mirror_info(); + void handle_get_mirror_info(int r); + + void move_to_trash(); + void handle_move_to_trash(int r); + + void finish(int r); + +}; + +} // namespace image_replayer +} // namespace mirror +} // namespace rbd + +extern template class rbd::mirror::image_replayer::PrepareLocalImageRequest<librbd::ImageCtx>; + +#endif // RBD_MIRROR_IMAGE_REPLAYER_PREPARE_LOCAL_IMAGE_REQUEST_H |