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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_API_DIFF_ITERATE_H
#define CEPH_LIBRBD_API_DIFF_ITERATE_H
#include "include/int_types.h"
#include "common/bit_vector.hpp"
#include "cls/rbd/cls_rbd_types.h"
namespace librbd {
class ImageCtx;
namespace api {
template <typename ImageCtxT = librbd::ImageCtx>
class DiffIterate {
public:
typedef int (*Callback)(uint64_t, size_t, int, void *);
static int diff_iterate(ImageCtxT *ictx,
const cls::rbd::SnapshotNamespace& from_snap_namespace,
const char *fromsnapname,
uint64_t off, uint64_t len, bool include_parent,
bool whole_object,
int (*cb)(uint64_t, size_t, int, void *),
void *arg);
private:
ImageCtxT &m_image_ctx;
cls::rbd::SnapshotNamespace m_from_snap_namespace;
const char* m_from_snap_name;
uint64_t m_offset;
uint64_t m_length;
bool m_include_parent;
bool m_whole_object;
Callback m_callback;
void *m_callback_arg;
DiffIterate(ImageCtxT &image_ctx,
const cls::rbd::SnapshotNamespace& from_snap_namespace,
const char *from_snap_name, uint64_t off, uint64_t len,
bool include_parent, bool whole_object, Callback callback,
void *callback_arg)
: m_image_ctx(image_ctx), m_from_snap_namespace(from_snap_namespace),
m_from_snap_name(from_snap_name), m_offset(off),
m_length(len), m_include_parent(include_parent),
m_whole_object(whole_object), m_callback(callback),
m_callback_arg(callback_arg)
{
}
int execute();
int diff_object_map(uint64_t from_snap_id, uint64_t to_snap_id,
BitVector<2>* object_diff_state);
};
} // namespace api
} // namespace librbd
extern template class librbd::api::DiffIterate<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_API_DIFF_ITERATE_H
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