initial code repo

[stor4nfv.git] / src / ceph / src / tools / rbd_mirror / image_sync / ImageCopyRequest.h

diff --git a/src/ceph/src/tools/rbd_mirror/image_sync/ImageCopyRequest.h b/src/ceph/src/tools/rbd_mirror/image_sync/ImageCopyRequest.h
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+++ b/src/ceph/src/tools/rbd_mirror/image_sync/ImageCopyRequest.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef RBD_MIRROR_IMAGE_SYNC_IMAGE_COPY_REQUEST_H
+#define RBD_MIRROR_IMAGE_SYNC_IMAGE_COPY_REQUEST_H
+
+#include "include/int_types.h"
+#include "include/rados/librados.hpp"
+#include "common/Mutex.h"
+#include "librbd/journal/Types.h"
+#include "librbd/journal/TypeTraits.h"
+#include "tools/rbd_mirror/BaseRequest.h"
+#include <map>
+#include <vector>
+
+class Context;
+class SafeTimer;
+namespace journal { class Journaler; }
+namespace librbd { struct ImageCtx; }
+
+namespace rbd {
+namespace mirror {
+
+class ProgressContext;
+
+namespace image_sync {
+
+template <typename ImageCtxT = librbd::ImageCtx>
+class ImageCopyRequest : public BaseRequest {
+public:
+  typedef std::vector<librados::snap_t> SnapIds;
+  typedef std::map<librados::snap_t, SnapIds> SnapMap;
+  typedef librbd::journal::TypeTraits<ImageCtxT> TypeTraits;
+  typedef typename TypeTraits::Journaler Journaler;
+  typedef librbd::journal::MirrorPeerSyncPoint MirrorPeerSyncPoint;
+  typedef librbd::journal::MirrorPeerClientMeta MirrorPeerClientMeta;
+  typedef rbd::mirror::ProgressContext ProgressContext;
+
+  static ImageCopyRequest* create(ImageCtxT *local_image_ctx,
+                                  ImageCtxT *remote_image_ctx,
+                                  SafeTimer *timer, Mutex *timer_lock,
+                                  Journaler *journaler,
+                                  MirrorPeerClientMeta *client_meta,
+                                  MirrorPeerSyncPoint *sync_point,
+                                  Context *on_finish,
+                                 ProgressContext *progress_ctx = nullptr) {
+    return new ImageCopyRequest(local_image_ctx, remote_image_ctx, timer,
+                                timer_lock, journaler, client_meta, sync_point,
+                                on_finish, progress_ctx);
+  }
+
+  ImageCopyRequest(ImageCtxT *local_image_ctx, ImageCtxT *remote_image_ctx,
+                   SafeTimer *timer, Mutex *timer_lock, Journaler *journaler,
+                   MirrorPeerClientMeta *client_meta,
+                   MirrorPeerSyncPoint *sync_point, Context *on_finish,
+                  ProgressContext *progress_ctx = nullptr);
+
+  void send() override;
+  void cancel() override;
+
+private:
+  /**
+   * @verbatim
+   *
+   * <start>
+   *    |
+   *    v
+   * UPDATE_MAX_OBJECT_COUNT
+   *    |
+   *    |   . . . . .
+   *    |   .       .  (parallel execution of
+   *    v   v       .   multiple objects at once)
+   * COPY_OBJECT  . .
+   *    |
+   *    v
+   * FLUSH_SYNC_POINT
+   *    |
+   *    v
+   * <finish>
+   *
+   * @endverbatim
+   */
+
+  ImageCtxT *m_local_image_ctx;
+  ImageCtxT *m_remote_image_ctx;
+  SafeTimer *m_timer;
+  Mutex *m_timer_lock;
+  Journaler *m_journaler;
+  MirrorPeerClientMeta *m_client_meta;
+  MirrorPeerSyncPoint *m_sync_point;
+  ProgressContext *m_progress_ctx;
+
+  SnapMap m_snap_map;
+
+  Mutex m_lock;
+  bool m_canceled = false;
+
+  uint64_t m_object_no = 0;
+  uint64_t m_end_object_no;
+  uint64_t m_current_ops = 0;
+  int m_ret_val = 0;
+
+  bool m_updating_sync_point;
+  Context *m_update_sync_ctx;
+  double m_update_sync_point_interval;
+
+  MirrorPeerClientMeta m_client_meta_copy;
+
+  void send_update_max_object_count();
+  void handle_update_max_object_count(int r);
+
+  void send_object_copies();
+  void send_next_object_copy();
+  void handle_object_copy(int r);
+
+  void send_update_sync_point();
+  void handle_update_sync_point(int r);
+
+  void send_flush_sync_point();
+  void handle_flush_sync_point(int r);
+
+  int compute_snap_map();
+
+  void update_progress(const std::string &description, bool flush = true);
+};
+
+} // namespace image_sync
+} // namespace mirror
+} // namespace rbd
+
+extern template class rbd::mirror::image_sync::ImageCopyRequest<librbd::ImageCtx>;
+
+#endif // RBD_MIRROR_IMAGE_SYNC_IMAGE_COPY_REQUEST_H