initial code repo

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

diff --git a/src/ceph/src/tools/rbd_mirror/image_sync/SnapshotCreateRequest.h b/src/ceph/src/tools/rbd_mirror/image_sync/SnapshotCreateRequest.h
new file mode 100644 (file)
index 0000000..503a164
--- /dev/null
+++ b/src/ceph/src/tools/rbd_mirror/image_sync/SnapshotCreateRequest.h
@@ -0,0 +1,108 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef RBD_MIRROR_IMAGE_SYNC_SNAPSHOT_CREATE_REQUEST_H
+#define RBD_MIRROR_IMAGE_SYNC_SNAPSHOT_CREATE_REQUEST_H
+
+#include "include/int_types.h"
+#include "include/rados/librados.hpp"
+#include "common/snap_types.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/Types.h"
+#include "librbd/journal/TypeTraits.h"
+#include <map>
+#include <set>
+#include <string>
+#include <tuple>
+
+class Context;
+
+namespace rbd {
+namespace mirror {
+namespace image_sync {
+
+template <typename ImageCtxT = librbd::ImageCtx>
+class SnapshotCreateRequest {
+public:
+  static SnapshotCreateRequest* create(ImageCtxT *local_image_ctx,
+                                       const std::string &snap_name,
+                                       const cls::rbd::SnapshotNamespace &snap_namespace,
+                                       uint64_t size,
+                                       const librbd::ParentSpec &parent_spec,
+                                       uint64_t parent_overlap,
+                                       Context *on_finish) {
+    return new SnapshotCreateRequest(local_image_ctx, snap_name, snap_namespace, size,
+                                     parent_spec, parent_overlap, on_finish);
+  }
+
+  SnapshotCreateRequest(ImageCtxT *local_image_ctx,
+                        const std::string &snap_name,
+                       const cls::rbd::SnapshotNamespace &snap_namespace,
+                       uint64_t size,
+                        const librbd::ParentSpec &parent_spec,
+                        uint64_t parent_overlap, Context *on_finish);
+
+  void send();
+
+private:
+  /**
+   * @verbatim
+   *
+   * <start>
+   *    |
+   *    v (skip if not needed)
+   * SET_SIZE
+   *    |
+   *    v (skip if not needed)
+   * REMOVE_PARENT
+   *    |
+   *    v (skip if not needed)
+   * SET_PARENT
+   *    |
+   *    v
+   * CREATE_SNAP
+   *    |
+   *    v (skip if not needed)
+   * CREATE_OBJECT_MAP
+   *    |
+   *    v
+   * <finish>
+   *
+   * @endverbatim
+   */
+
+  ImageCtxT *m_local_image_ctx;
+  std::string m_snap_name;
+  cls::rbd::SnapshotNamespace m_snap_namespace;
+  uint64_t m_size;
+  librbd::ParentSpec m_parent_spec;
+  uint64_t m_parent_overlap;
+  Context *m_on_finish;
+
+  void send_set_size();
+  void handle_set_size(int r);
+
+  void send_remove_parent();
+  void handle_remove_parent(int r);
+
+  void send_set_parent();
+  void handle_set_parent(int r);
+
+  void send_snap_create();
+  void handle_snap_create(int r);
+
+  void send_create_object_map();
+  void handle_create_object_map(int r);
+
+  Context *start_local_op();
+
+  void finish(int r);
+};
+
+} // namespace image_sync
+} // namespace mirror
+} // namespace rbd
+
+extern template class rbd::mirror::image_sync::SnapshotCreateRequest<librbd::ImageCtx>;
+
+#endif // RBD_MIRROR_IMAGE_SYNC_SNAPSHOT_CREATE_REQUEST_H