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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_IMAGE_VALIDATE_POOL_REQUEST_H
#define CEPH_LIBRBD_IMAGE_VALIDATE_POOL_REQUEST_H
#include "include/rados/librados.hpp"
#include "include/buffer.h"
class CephContext;
class Context;
class ContextWQ;
namespace librbd {
struct ImageCtx;
namespace image {
template <typename ImageCtxT>
class ValidatePoolRequest {
public:
static ValidatePoolRequest* create(librados::IoCtx& io_ctx,
ContextWQ *op_work_queue,
Context *on_finish) {
return new ValidatePoolRequest(io_ctx, op_work_queue, on_finish);
}
ValidatePoolRequest(librados::IoCtx& io_ctx, ContextWQ *op_work_queue,
Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v (overwrites validated)
* READ RBD INFO . . . . . . . . .
* | . .
* | . (snapshots validated) .
* | . . . . . . . . . . .
* v . .
* CREATE SNAPSHOT . .
* | . .
* v . .
* WRITE RBD INFO . .
* | . .
* v . .
* REMOVE SNAPSHOT . .
* | . .
* v . .
* OVERWRITE RBD INFO < . . . .
* | .
* v .
* <finish> < . . . . . . . . . .`
*
* @endverbatim
*/
librados::IoCtx m_io_ctx;
CephContext* m_cct;
ContextWQ* m_op_work_queue;
Context* m_on_finish;
int m_ret_val = 0;
bufferlist m_out_bl;
uint64_t m_snap_id = 0;
void read_rbd_info();
void handle_read_rbd_info(int r);
void create_snapshot();
void handle_create_snapshot(int r);
void write_rbd_info();
void handle_write_rbd_info(int r);
void remove_snapshot();
void handle_remove_snapshot(int r);
void overwrite_rbd_info();
void handle_overwrite_rbd_info(int r);
void finish(int r);
};
} // namespace image
} // namespace librbd
extern template class librbd::image::ValidatePoolRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_IMAGE_VALIDATE_POOL_REQUEST_H
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