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Diffstat (limited to 'src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h')
-rw-r--r-- | src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h b/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h new file mode 100644 index 000000000..9a642bc39 --- /dev/null +++ b/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h @@ -0,0 +1,97 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H +#define RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H + +#include "include/int_types.h" +#include "cls/rbd/cls_rbd_types.h" +#include "librbd/ImageCtx.h" +#include "librbd/mirror/Types.h" +#include <string> + +class Context; +namespace librbd { +class ImageCtx; +namespace asio { struct ContextWQ; } +} // namespace librbd + +namespace rbd { +namespace mirror { +namespace image_replayer { + +template <typename ImageCtxT = librbd::ImageCtx> +class OpenLocalImageRequest { +public: + static OpenLocalImageRequest* create(librados::IoCtx &local_io_ctx, + ImageCtxT **local_image_ctx, + const std::string &local_image_id, + librbd::asio::ContextWQ *work_queue, + Context *on_finish) { + return new OpenLocalImageRequest(local_io_ctx, local_image_ctx, + local_image_id, work_queue, on_finish); + } + + OpenLocalImageRequest(librados::IoCtx &local_io_ctx, + ImageCtxT **local_image_ctx, + const std::string &local_image_id, + librbd::asio::ContextWQ *work_queue, + Context *on_finish); + + void send(); + +private: + /** + * @verbatim + * + * <start> + * | + * v + * OPEN_IMAGE * * * * * * * * + * | * + * v * + * GET_MIRROR_INFO * * * * * + * | * + * v (skip if primary) v + * LOCK_IMAGE * * * > CLOSE_IMAGE + * | | + * v | + * <finish> <---------------/ + * + * @endverbatim + */ + librados::IoCtx &m_local_io_ctx; + ImageCtxT **m_local_image_ctx; + std::string m_local_image_id; + librbd::asio::ContextWQ *m_work_queue; + Context *m_on_finish; + + cls::rbd::MirrorImage m_mirror_image; + librbd::mirror::PromotionState m_promotion_state = + librbd::mirror::PROMOTION_STATE_NON_PRIMARY; + std::string m_primary_mirror_uuid; + int m_ret_val = 0; + + void send_open_image(); + void handle_open_image(int r); + + void send_get_mirror_info(); + void handle_get_mirror_info(int r); + + void send_lock_image(); + void handle_lock_image(int r); + + void send_close_image(int r); + void handle_close_image(int r); + + void finish(int r); + +}; + +} // namespace image_replayer +} // namespace mirror +} // namespace rbd + +extern template class rbd::mirror::image_replayer::OpenLocalImageRequest<librbd::ImageCtx>; + +#endif // RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H |