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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_DEEP_COPY_METADATA_COPY_REQUEST_H
#define CEPH_LIBRBD_DEEP_COPY_METADATA_COPY_REQUEST_H
#include "include/int_types.h"
#include "include/buffer.h"
#include "include/rados/librados.hpp"
#include "librbd/ImageCtx.h"
#include <map>
#include <string>
class Context;
namespace librbd {
namespace deep_copy {
template <typename ImageCtxT = librbd::ImageCtx>
class MetadataCopyRequest {
public:
static MetadataCopyRequest* create(ImageCtxT *src_image_ctx,
ImageCtxT *dst_image_ctx,
Context *on_finish) {
return new MetadataCopyRequest(src_image_ctx, dst_image_ctx, on_finish);
}
MetadataCopyRequest(ImageCtxT *src_image_ctx, ImageCtxT *dst_image_ctx,
Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v
* LIST_SRC_METADATA <------\
* | | (repeat if additional
* v | metadata)
* SET_DST_METADATA --------/
* |
* v
* <finish>
*
* @endverbatim
*/
typedef std::map<std::string, bufferlist> Metadata;
ImageCtxT *m_src_image_ctx;
ImageCtxT *m_dst_image_ctx;
Context *m_on_finish;
CephContext *m_cct;
bufferlist m_out_bl;
std::string m_last_metadata_key;
bool m_more_metadata = false;
void list_src_metadata();
void handle_list_src_metadata(int r);
void set_dst_metadata(const Metadata& metadata);
void handle_set_dst_metadata(int r);
void finish(int r);
};
} // namespace deep_copy
} // namespace librbd
extern template class librbd::deep_copy::MetadataCopyRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_DEEP_COPY_METADATA_COPY_REQUEST_H
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