update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / librbd / migration / RawFormat.h

diff --git a/ceph/src/librbd/migration/RawFormat.h b/ceph/src/librbd/migration/RawFormat.h
new file mode 100644 (file)
index 0000000..a20c081
--- /dev/null
+++ b/ceph/src/librbd/migration/RawFormat.h
@@ -0,0 +1,78 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_MIGRATION_RAW_FORMAT_H
+#define CEPH_LIBRBD_MIGRATION_RAW_FORMAT_H
+
+#include "include/int_types.h"
+#include "librbd/Types.h"
+#include "librbd/migration/FormatInterface.h"
+#include "json_spirit/json_spirit.h"
+#include <map>
+#include <memory>
+
+struct Context;
+
+namespace librbd {
+
+struct AsioEngine;
+struct ImageCtx;
+
+namespace migration {
+
+template <typename> struct SourceSpecBuilder;
+struct SnapshotInterface;
+
+template <typename ImageCtxT>
+class RawFormat : public FormatInterface {
+public:
+  static RawFormat* create(
+      ImageCtxT* image_ctx, const json_spirit::mObject& json_object,
+      const SourceSpecBuilder<ImageCtxT>* source_spec_builder) {
+    return new RawFormat(image_ctx, json_object, source_spec_builder);
+  }
+
+  RawFormat(ImageCtxT* image_ctx, const json_spirit::mObject& json_object,
+            const SourceSpecBuilder<ImageCtxT>* source_spec_builder);
+  RawFormat(const RawFormat&) = delete;
+  RawFormat& operator=(const RawFormat&) = delete;
+
+  void open(Context* on_finish) override;
+  void close(Context* on_finish) override;
+
+  void get_snapshots(SnapInfos* snap_infos, Context* on_finish) override;
+  void get_image_size(uint64_t snap_id, uint64_t* size,
+                      Context* on_finish) override;
+
+  bool read(io::AioCompletion* aio_comp, uint64_t snap_id,
+            io::Extents&& image_extents, io::ReadResult&& read_result,
+            int op_flags, int read_flags,
+            const ZTracer::Trace &parent_trace) override;
+
+  void list_snaps(io::Extents&& image_extents, io::SnapIds&& snap_ids,
+                  int list_snaps_flags, io::SnapshotDelta* snapshot_delta,
+                  const ZTracer::Trace &parent_trace,
+                  Context* on_finish) override;
+
+private:
+  typedef std::shared_ptr<SnapshotInterface> Snapshot;
+  typedef std::map<uint64_t, Snapshot> Snapshots;
+
+  ImageCtxT* m_image_ctx;
+  json_spirit::mObject m_json_object;
+  const SourceSpecBuilder<ImageCtxT>* m_source_spec_builder;
+
+  Snapshots m_snapshots;
+
+  void handle_open(int r, Context* on_finish);
+
+  void handle_list_snaps(int r, io::SnapIds&& snap_ids,
+                         io::SnapshotDelta* snapshot_delta, Context* on_finish);
+};
+
+} // namespace migration
+} // namespace librbd
+
+extern template class librbd::migration::RawFormat<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_MIGRATION_RAW_FORMAT_H