Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/src/librbd/migration/RawSnapshot.h b/src/librbd/migration/RawSnapshot.h
new file mode 100644
index 000000000..9f76d6878
--- /dev/null
+++ b/src/librbd/migration/RawSnapshot.h
@@ -0,0 +1,75 @@
+// -*- mode:c++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_MIGRATION_RAW_SNAPSHOT_H
+#define CEPH_LIBRBD_MIGRATION_RAW_SNAPSHOT_H
+
+#include "include/buffer_fwd.h"
+#include "include/int_types.h"
+#include "common/zipkin_trace.h"
+#include "librbd/Types.h"
+#include "librbd/io/Types.h"
+#include "librbd/migration/SnapshotInterface.h"
+#include "json_spirit/json_spirit.h"
+#include <memory>
+
+namespace librbd {
+
+struct ImageCtx;
+
+namespace migration {
+
+template <typename> struct SourceSpecBuilder;
+struct StreamInterface;
+
+template <typename ImageCtxT>
+class RawSnapshot : public SnapshotInterface {
+public:
+  static RawSnapshot* create(
+      ImageCtx* image_ctx, const json_spirit::mObject& json_object,
+      const SourceSpecBuilder<ImageCtxT>* source_spec_builder, uint64_t index) {
+    return new RawSnapshot(image_ctx, json_object, source_spec_builder, index);
+  }
+
+  RawSnapshot(ImageCtxT* image_ctx, const json_spirit::mObject& json_object,
+              const SourceSpecBuilder<ImageCtxT>* source_spec_builder,
+              uint64_t index);
+  RawSnapshot(const RawSnapshot&) = delete;
+  RawSnapshot& operator=(const RawSnapshot&) = delete;
+
+  void open(SnapshotInterface* previous_snapshot, Context* on_finish) override;
+  void close(Context* on_finish) override;
+
+  const SnapInfo& get_snap_info() const override {
+    return m_snap_info;
+  }
+
+  void read(io::AioCompletion* aio_comp, io::Extents&& image_extents,
+            io::ReadResult&& read_result, int op_flags, int read_flags,
+            const ZTracer::Trace &parent_trace) override;
+
+  void list_snap(io::Extents&& image_extents, int list_snaps_flags,
+                 io::SparseExtents* sparse_extents,
+                 const ZTracer::Trace &parent_trace,
+                 Context* on_finish) override;
+
+private:
+  struct OpenRequest;
+
+  ImageCtxT* m_image_ctx;
+  json_spirit::mObject m_json_object;
+  const SourceSpecBuilder<ImageCtxT>* m_source_spec_builder;
+  uint64_t m_index = 0;
+
+  SnapInfo m_snap_info;
+
+  std::shared_ptr<StreamInterface> m_stream;
+
+};
+
+} // namespace migration
+} // namespace librbd
+
+extern template class librbd::migration::RawSnapshot<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_MIGRATION_RAW_SNAPSHOT_H