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Diffstat (limited to 'src/librbd/journal/OpenRequest.h')
-rw-r--r-- | src/librbd/journal/OpenRequest.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/librbd/journal/OpenRequest.h b/src/librbd/journal/OpenRequest.h new file mode 100644 index 00000000..f71d8c53 --- /dev/null +++ b/src/librbd/journal/OpenRequest.h @@ -0,0 +1,85 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H +#define CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H + +#include "include/int_types.h" +#include "librbd/journal/TypeTraits.h" + +struct Context; +struct Mutex; + +namespace librbd { + +struct ImageCtx; + +namespace journal { + +struct ImageClientMeta; +struct TagData; + +template <typename ImageCtxT = ImageCtx> +class OpenRequest { +public: + typedef typename TypeTraits<ImageCtxT>::Journaler Journaler; + + static OpenRequest* create(ImageCtxT *image_ctx, Journaler *journaler, + Mutex *lock, journal::ImageClientMeta *client_meta, + uint64_t *tag_tid, journal::TagData *tag_data, + Context *on_finish) { + return new OpenRequest(image_ctx, journaler, lock, client_meta, tag_tid, + tag_data, on_finish); + } + + OpenRequest(ImageCtxT *image_ctx, Journaler *journaler, Mutex *lock, + journal::ImageClientMeta *client_meta, uint64_t *tag_tid, + journal::TagData *tag_data, Context *on_finish); + + void send(); + +private: + /** + * @verbatim + * + * <start> + * | + * v + * INIT + * | + * v + * GET_TAGS + * | + * v + * <finish> + * + * @endverbatim + */ + + + ImageCtxT *m_image_ctx; + Journaler *m_journaler; + Mutex *m_lock; + journal::ImageClientMeta *m_client_meta; + uint64_t *m_tag_tid; + journal::TagData *m_tag_data; + Context *m_on_finish; + + uint64_t m_tag_class = 0; + + void send_init(); + void handle_init(int r); + + void send_get_tags(); + void handle_get_tags(int r); + + void finish(int r); + +}; + +} // namespace journal +} // namespace librbd + +extern template class librbd::journal::OpenRequest<librbd::ImageCtx>; + +#endif // CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H |