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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_SET_HEAD_REQUEST_H
#define CEPH_LIBRBD_DEEP_COPY_SET_HEAD_REQUEST_H
#include "include/int_types.h"
#include "include/rados/librados.hpp"
#include "common/snap_types.h"
#include "librbd/ImageCtx.h"
#include "librbd/Types.h"
#include <map>
#include <set>
#include <string>
#include <tuple>
class Context;
namespace librbd {
namespace deep_copy {
template <typename ImageCtxT = librbd::ImageCtx>
class SetHeadRequest {
public:
static SetHeadRequest* create(ImageCtxT *image_ctx, uint64_t size,
const cls::rbd::ParentImageSpec &parent_spec,
uint64_t parent_overlap,
Context *on_finish) {
return new SetHeadRequest(image_ctx, size, parent_spec, parent_overlap,
on_finish);
}
SetHeadRequest(ImageCtxT *image_ctx, uint64_t size,
const cls::rbd::ParentImageSpec &parent_spec,
uint64_t parent_overlap, Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v (skip if not needed)
* SET_SIZE
* |
* v (skip if not needed)
* DETACH_PARENT
* |
* v (skip if not needed)
* ATTACH_PARENT
* |
* v
* <finish>
*
* @endverbatim
*/
ImageCtxT *m_image_ctx;
uint64_t m_size;
cls::rbd::ParentImageSpec m_parent_spec;
uint64_t m_parent_overlap;
Context *m_on_finish;
CephContext *m_cct;
void send_set_size();
void handle_set_size(int r);
void send_detach_parent();
void handle_detach_parent(int r);
void send_attach_parent();
void handle_attach_parent(int r);
Context *start_lock_op(int* r);
void finish(int r);
};
} // namespace deep_copy
} // namespace librbd
extern template class librbd::deep_copy::SetHeadRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_DEEP_COPY_SET_HEAD_REQUEST_H
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