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// -*- 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
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