remove ceph code

[stor4nfv.git] / src / ceph / src / librbd / io / CopyupRequest.h

diff --git a/src/ceph/src/librbd/io/CopyupRequest.h b/src/ceph/src/librbd/io/CopyupRequest.h
deleted file mode 100644 (file)
index c4aa6a2..0000000
--- a/src/ceph/src/librbd/io/CopyupRequest.h
+++ /dev/null
@@ -1,110 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#ifndef CEPH_LIBRBD_IO_COPYUP_REQUEST_H
-#define CEPH_LIBRBD_IO_COPYUP_REQUEST_H
-
-#include "include/int_types.h"
-#include "include/rados/librados.hpp"
-#include "include/buffer.h"
-#include "common/zipkin_trace.h"
-#include "librbd/io/AsyncOperation.h"
-#include "librbd/io/Types.h"
-
-#include <string>
-#include <vector>
-#include <atomic>
-
-namespace ZTracer { struct Trace; }
-
-namespace librbd {
-
-struct ImageCtx;
-
-namespace io {
-
-struct AioCompletion;
-template <typename I> class ObjectRequest;
-
-class CopyupRequest {
-public:
-  CopyupRequest(ImageCtx *ictx, const std::string &oid, uint64_t objectno,
-                Extents &&image_extents, const ZTracer::Trace &parent_trace);
-  ~CopyupRequest();
-
-  void append_request(ObjectRequest<ImageCtx> *req);
-
-  void send();
-
-  void complete(int r);
-
-private:
-  /**
-   * Copyup requests go through the following state machine to read from the
-   * parent image, update the object map, and copyup the object:
-   *
-   *
-   * @verbatim
-   *
-   *              <start>
-   *                 |
-   *                 v
-   *    . . .STATE_READ_FROM_PARENT. . .
-   *    . .          |                 .
-   *    . .          v                 .
-   *    . .  STATE_OBJECT_MAP_HEAD     v (copy on read /
-   *    . .          |                 .  no HEAD rev. update)
-   *    v v          v                 .
-   *    . .    STATE_OBJECT_MAP. . . . .
-   *    . .          |
-   *    . .          v
-   *    . . . . > STATE_COPYUP
-   *    .            |
-   *    .            v
-   *    . . . . > <finish>
-   *
-   * @endverbatim
-   *
-   * The _OBJECT_MAP state is skipped if the object map isn't enabled or if
-   * an object map update isn't required. The _COPYUP state is skipped if
-   * no data was read from the parent *and* there are no additional ops.
-   */
-  enum State {
-    STATE_READ_FROM_PARENT,
-    STATE_OBJECT_MAP_HEAD, // only update the HEAD revision
-    STATE_OBJECT_MAP,      // update HEAD+snaps (if any)
-    STATE_COPYUP
-  };
-
-  ImageCtx *m_ictx;
-  std::string m_oid;
-  uint64_t m_object_no;
-  Extents m_image_extents;
-  ZTracer::Trace m_trace;
-
-  State m_state;
-  ceph::bufferlist m_copyup_data;
-  std::vector<ObjectRequest<ImageCtx> *> m_pending_requests;
-  std::atomic<unsigned> m_pending_copyups { 0 };
-
-  AsyncOperation m_async_op;
-
-  std::vector<uint64_t> m_snap_ids;
-  librados::IoCtx m_data_ctx; // for empty SnapContext
-
-  void complete_requests(int r);
-
-  bool should_complete(int r);
-
-  void remove_from_list();
-
-  bool send_object_map_head();
-  bool send_object_map();
-  bool send_copyup();
-  bool is_copyup_required();
-};
-
-} // namespace io
-} // namespace librbd
-
-#endif // CEPH_LIBRBD_IO_COPYUP_REQUEST_H