diff options
Diffstat (limited to 'src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h')
-rw-r--r-- | src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h | 90 |
1 files changed, 90 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 00000000..58de545f --- /dev/null +++ b/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h @@ -0,0 +1,90 @@ +// -*- 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 "librbd/ImageCtx.h" +#include <string> + +class Context; +class ContextWQ; +namespace librbd { class ImageCtx; } + +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, + 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, + ContextWQ *m_work_queue, + Context *on_finish); + + void send(); + +private: + /** + * @verbatim + * + * <start> + * | + * v + * OPEN_IMAGE * * * * * * * * + * | * + * v * + * IS_PRIMARY * * * * * * * * + * | * + * 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; + ContextWQ *m_work_queue; + Context *m_on_finish; + + bool m_primary = false; + int m_ret_val = 0; + + void send_open_image(); + void handle_open_image(int r); + + void send_is_primary(); + void handle_is_primary(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 |