X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Fobject_map%2FSnapshotRollbackRequest.h;fp=src%2Fceph%2Fsrc%2Flibrbd%2Fobject_map%2FSnapshotRollbackRequest.h;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=47d7116cb4ba5e0268037bd365c4d376be22042e;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/librbd/object_map/SnapshotRollbackRequest.h b/src/ceph/src/librbd/object_map/SnapshotRollbackRequest.h deleted file mode 100644 index 47d7116..0000000 --- a/src/ceph/src/librbd/object_map/SnapshotRollbackRequest.h +++ /dev/null @@ -1,74 +0,0 @@ -// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- -// vim: ts=8 sw=2 smarttab - -#ifndef CEPH_LIBRBD_OBJECT_MAP_SNAPSHOT_ROLLBACK_REQUEST_H -#define CEPH_LIBRBD_OBJECT_MAP_SNAPSHOT_ROLLBACK_REQUEST_H - -#include "include/int_types.h" -#include "librbd/object_map/Request.h" - -class Context; - -namespace librbd { - -class ImageCtx; - -namespace object_map { - -class SnapshotRollbackRequest : public Request { -public: - /** - * Snapshot rollback goes through the following state machine: - * - * @verbatim - * - * - * | - * v (error) - * STATE_READ_MAP * * * * > STATE_INVALIDATE_MAP - * | | - * v v - * STATE_WRITE_MAP -------> - * - * @endverbatim - * - * If an error occurs within the READ_MAP state, the associated snapshot's - * object map will be flagged as invalid. Otherwise, an error from any state - * will result in the HEAD object map being flagged as invalid via the base - * class. - */ - enum State { - STATE_READ_MAP, - STATE_INVALIDATE_MAP, - STATE_WRITE_MAP - }; - - SnapshotRollbackRequest(ImageCtx &image_ctx, uint64_t snap_id, - Context *on_finish) - : Request(image_ctx, CEPH_NOSNAP, on_finish), - m_snap_id(snap_id), m_ret_val(0) { - assert(snap_id != CEPH_NOSNAP); - } - - void send() override; - -protected: - bool should_complete(int r) override; - -private: - State m_state; - uint64_t m_snap_id; - int m_ret_val; - - bufferlist m_read_bl; - - void send_read_map(); - void send_invalidate_map(); - void send_write_map(); - -}; - -} // namespace object_map -} // namespace librbd - -#endif // CEPH_LIBRBD_OBJECT_MAP_SNAPSHOT_ROLLBACK_REQUEST_H