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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_IMAGE_DEEP_COPY_REQUEST_H
#define CEPH_LIBRBD_DEEP_COPY_IMAGE_DEEP_COPY_REQUEST_H
#include "include/int_types.h"
#include "include/rados/librados.hpp"
#include "common/bit_vector.hpp"
#include "common/ceph_mutex.h"
#include "common/RefCountedObj.h"
#include "librbd/Types.h"
#include "librbd/deep_copy/Types.h"
#include <functional>
#include <map>
#include <queue>
#include <set>
#include <vector>
#include <boost/optional.hpp>
class Context;
namespace librbd {
class ImageCtx;
namespace deep_copy {
class Handler;
template <typename ImageCtxT = ImageCtx>
class ImageCopyRequest : public RefCountedObject {
public:
static ImageCopyRequest* create(ImageCtxT *src_image_ctx,
ImageCtxT *dst_image_ctx,
librados::snap_t src_snap_id_start,
librados::snap_t src_snap_id_end,
librados::snap_t dst_snap_id_start,
bool flatten,
const ObjectNumber &object_number,
const SnapSeqs &snap_seqs,
Handler *handler,
Context *on_finish) {
return new ImageCopyRequest(src_image_ctx, dst_image_ctx, src_snap_id_start,
src_snap_id_end, dst_snap_id_start, flatten,
object_number, snap_seqs, handler, on_finish);
}
ImageCopyRequest(ImageCtxT *src_image_ctx, ImageCtxT *dst_image_ctx,
librados::snap_t src_snap_id_start,
librados::snap_t src_snap_id_end,
librados::snap_t dst_snap_id_start,
bool flatten, const ObjectNumber &object_number,
const SnapSeqs &snap_seqs, Handler *handler,
Context *on_finish);
void send();
void cancel();
private:
/**
* @verbatim
*
* <start>
* |
* v
* COMPUTE_DIFF
* |
* | . . . . .
* | . . (parallel execution of
* v v . multiple objects at once)
* COPY_OBJECT . . . .
* |
* v
* <finish>
*
* @endverbatim
*/
ImageCtxT *m_src_image_ctx;
ImageCtxT *m_dst_image_ctx;
librados::snap_t m_src_snap_id_start;
librados::snap_t m_src_snap_id_end;
librados::snap_t m_dst_snap_id_start;
bool m_flatten;
ObjectNumber m_object_number;
SnapSeqs m_snap_seqs;
Handler *m_handler;
Context *m_on_finish;
CephContext *m_cct;
ceph::mutex m_lock;
bool m_canceled = false;
uint64_t m_object_no = 0;
uint64_t m_end_object_no = 0;
uint64_t m_current_ops = 0;
std::priority_queue<
uint64_t, std::vector<uint64_t>, std::greater<uint64_t>> m_copied_objects;
bool m_updating_progress = false;
SnapMap m_snap_map;
int m_ret_val = 0;
BitVector<2> m_object_diff_state;
void map_src_objects(uint64_t dst_object, std::set<uint64_t> *src_objects);
void compute_diff();
void handle_compute_diff(int r);
void send_object_copies();
void send_next_object_copy();
void handle_object_copy(uint64_t object_no, int r);
void finish(int r);
};
} // namespace deep_copy
} // namespace librbd
extern template class librbd::deep_copy::ImageCopyRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_DEEP_COPY_IMAGE_DEEP_COPY_REQUEST_H
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