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Diffstat (limited to '')
-rw-r--r-- | src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.h b/src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.h new file mode 100644 index 000000000..08bf840b1 --- /dev/null +++ b/src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.h @@ -0,0 +1,91 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef RBD_MIRROR_IMAGE_SYNC_SYNC_POINT_PRUNE_REQUEST_H +#define RBD_MIRROR_IMAGE_SYNC_SYNC_POINT_PRUNE_REQUEST_H + +#include "tools/rbd_mirror/image_sync/Types.h" +#include <list> +#include <string> + +class Context; +namespace journal { class Journaler; } +namespace librbd { class ImageCtx; } +namespace librbd { namespace journal { struct MirrorPeerClientMeta; } } + +namespace rbd { +namespace mirror { +namespace image_sync { + +template <typename ImageCtxT = librbd::ImageCtx> +class SyncPointPruneRequest { +public: + static SyncPointPruneRequest* create( + ImageCtxT *remote_image_ctx, + bool sync_complete, + SyncPointHandler* sync_point_handler, + Context *on_finish) { + return new SyncPointPruneRequest(remote_image_ctx, sync_complete, + sync_point_handler, on_finish); + } + + SyncPointPruneRequest( + ImageCtxT *remote_image_ctx, + bool sync_complete, + SyncPointHandler* sync_point_handler, + Context *on_finish); + + void send(); + +private: + /** + * @verbatim + * + * <start> + * | + * | . . . . . + * | . . + * v v . (repeat if from snap + * REMOVE_SNAP . . . unused by other sync) + * | + * v + * REFRESH_IMAGE + * | + * v + * UPDATE_CLIENT + * | + * v + * <finish> + * + * @endverbatim + */ + + ImageCtxT *m_remote_image_ctx; + bool m_sync_complete; + SyncPointHandler* m_sync_point_handler; + Context *m_on_finish; + + SyncPoints m_sync_points_copy; + std::list<std::string> m_snap_names; + + bool m_invalid_master_sync_point = false; + + void send_remove_snap(); + void handle_remove_snap(int r); + + void send_refresh_image(); + void handle_refresh_image(int r); + + void send_update_sync_points(); + void handle_update_sync_points(int r); + + void finish(int r); +}; + +} // namespace image_sync +} // namespace mirror +} // namespace rbd + +extern template class rbd::mirror::image_sync::SyncPointPruneRequest<librbd::ImageCtx>; + +#endif // RBD_MIRROR_IMAGE_SYNC_SYNC_POINT_PRUNE_REQUEST_H |