X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Fjournal%2FPromoteRequest.h;fp=src%2Fceph%2Fsrc%2Flibrbd%2Fjournal%2FPromoteRequest.h;h=0d01f596108d87502bfc9794b23d77bd1cfe2d3e;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/src/librbd/journal/PromoteRequest.h b/src/ceph/src/librbd/journal/PromoteRequest.h new file mode 100644 index 0000000..0d01f59 --- /dev/null +++ b/src/ceph/src/librbd/journal/PromoteRequest.h @@ -0,0 +1,109 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_LIBRBD_JOURNAL_PROMOTE_REQUEST_H +#define CEPH_LIBRBD_JOURNAL_PROMOTE_REQUEST_H + +#include "include/int_types.h" +#include "common/Mutex.h" +#include "cls/journal/cls_journal_types.h" +#include "journal/Future.h" +#include "librbd/journal/Types.h" +#include "librbd/journal/TypeTraits.h" + +struct Context; + +namespace librbd { + +struct ImageCtx; + +namespace journal { + +template +class PromoteRequest { +public: + static PromoteRequest* create(ImageCtxT *image_ctx, bool force, + Context *on_finish) { + return new PromoteRequest(image_ctx, force, on_finish); + } + + PromoteRequest(ImageCtxT *image_ctx, bool force, Context *on_finish); + + void send(); + +private: + /** + * @verbatim + * + * + * | + * v + * OPEN * * * * * * * * * * + * | * + * v * + * ALLOCATE_TAG * * * * * * + * | * + * v * + * APPEND_EVENT * * * * + * | * * + * v * * + * COMMIT_EVENT * * + * | * * + * v * * + * STOP_APPEND <* * * * + * | * + * v * + * SHUT_DOWN <* * * * * * * + * | + * v + * + * + * @endverbatim + */ + + typedef typename TypeTraits::Journaler Journaler; + typedef typename TypeTraits::Future Future; + + ImageCtxT *m_image_ctx; + bool m_force; + Context *m_on_finish; + + Journaler *m_journaler = nullptr; + int m_ret_val = 0; + + Mutex m_lock; + ImageClientMeta m_client_meta; + uint64_t m_tag_tid = 0; + TagData m_tag_data; + + cls::journal::Tag m_tag; + Future m_future; + + void send_open(); + void handle_open(int r); + + void allocate_tag(); + void handle_allocate_tag(int r); + + void append_event(); + void handle_append_event(int r); + + void commit_event(); + void handle_commit_event(int r); + + void stop_append(); + void handle_stop_append(int r); + + void shut_down(); + void handle_shut_down(int r); + + void finish(int r); + +}; + +} // namespace journal +} // namespace librbd + +extern template class librbd::journal::PromoteRequest; + +#endif // CEPH_LIBRBD_JOURNAL_PROMOTE_REQUEST_H