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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_NATIVE_FORMAT_H
#define CEPH_LIBRBD_MIGRATION_NATIVE_FORMAT_H
#include "include/int_types.h"
#include "librbd/Types.h"
#include "librbd/migration/FormatInterface.h"
#include "json_spirit/json_spirit.h"
#include <memory>
struct Context;
namespace librbd {
struct AsioEngine;
struct ImageCtx;
namespace migration {
template <typename ImageCtxT>
class NativeFormat : public FormatInterface {
public:
static std::string build_source_spec(int64_t pool_id,
const std::string& pool_namespace,
const std::string& image_name,
const std::string& image_id);
static NativeFormat* create(ImageCtxT* image_ctx,
const json_spirit::mObject& json_object,
bool import_only) {
return new NativeFormat(image_ctx, json_object, import_only);
}
NativeFormat(ImageCtxT* image_ctx, const json_spirit::mObject& json_object,
bool import_only);
NativeFormat(const NativeFormat&) = delete;
NativeFormat& operator=(const NativeFormat&) = 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 {
return false;
}
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:
ImageCtxT* m_image_ctx;
json_spirit::mObject m_json_object;
bool m_import_only;
int64_t m_pool_id = -1;
std::string m_pool_namespace;
std::string m_image_name;
std::string m_image_id;
std::string m_snap_name;
uint64_t m_snap_id = CEPH_NOSNAP;
void handle_open(int r, Context* on_finish);
void handle_snap_set(int r, Context* on_finish);
};
} // namespace migration
} // namespace librbd
extern template class librbd::migration::NativeFormat<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_MIGRATION_NATIVE_FORMAT_H
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