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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_OPERATION_FLATTEN_REQUEST_H
#define CEPH_LIBRBD_OPERATION_FLATTEN_REQUEST_H
#include "librbd/operation/Request.h"
#include "common/snap_types.h"
namespace librbd {
class ImageCtx;
class ProgressContext;
namespace operation {
template <typename ImageCtxT = ImageCtx>
class FlattenRequest : public Request<ImageCtxT>
{
public:
FlattenRequest(ImageCtxT &image_ctx, Context *on_finish,
uint64_t overlap_objects, const ::SnapContext &snapc,
ProgressContext &prog_ctx)
: Request<ImageCtxT>(image_ctx, on_finish),
m_overlap_objects(overlap_objects),
m_snapc(snapc), m_prog_ctx(prog_ctx) {
}
protected:
void send_op() override;
bool should_complete(int r) override;
journal::Event create_event(uint64_t op_tid) const override {
return journal::FlattenEvent(op_tid);
}
private:
/**
* @verbatim
*
* <start>
* |
* v
* FLATTEN_OBJECTS
* |
* v
* DETACH_CHILD
* |
* v
* DETACH_PARENT
* |
* v
* <finish>
*
* @endverbatim
*/
uint64_t m_overlap_objects;
::SnapContext m_snapc;
ProgressContext &m_prog_ctx;
void flatten_objects();
void handle_flatten_objects(int r);
void detach_child();
void handle_detach_child(int r);
void detach_parent();
void handle_detach_parent(int r);
};
} // namespace operation
} // namespace librbd
extern template class librbd::operation::FlattenRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_OPERATION_FLATTEN_REQUEST_H
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