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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
#define RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
#include "include/int_types.h"
#include "librbd/ImageCtx.h"
#include <string>
class Context;
class ContextWQ;
namespace librbd { class ImageCtx; }
namespace rbd {
namespace mirror {
namespace image_replayer {
template <typename ImageCtxT = librbd::ImageCtx>
class OpenLocalImageRequest {
public:
static OpenLocalImageRequest* create(librados::IoCtx &local_io_ctx,
ImageCtxT **local_image_ctx,
const std::string &local_image_id,
ContextWQ *work_queue,
Context *on_finish) {
return new OpenLocalImageRequest(local_io_ctx, local_image_ctx,
local_image_id, work_queue, on_finish);
}
OpenLocalImageRequest(librados::IoCtx &local_io_ctx,
ImageCtxT **local_image_ctx,
const std::string &local_image_id,
ContextWQ *m_work_queue,
Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v
* OPEN_IMAGE * * * * * * * *
* | *
* v *
* IS_PRIMARY * * * * * * * *
* | *
* v (skip if primary) v
* LOCK_IMAGE * * * > CLOSE_IMAGE
* | |
* v |
* <finish> <---------------/
*
* @endverbatim
*/
librados::IoCtx &m_local_io_ctx;
ImageCtxT **m_local_image_ctx;
std::string m_local_image_id;
ContextWQ *m_work_queue;
Context *m_on_finish;
bool m_primary = false;
int m_ret_val = 0;
void send_open_image();
void handle_open_image(int r);
void send_is_primary();
void handle_is_primary(int r);
void send_lock_image();
void handle_lock_image(int r);
void send_close_image(int r);
void handle_close_image(int r);
void finish(int r);
};
} // namespace image_replayer
} // namespace mirror
} // namespace rbd
extern template class rbd::mirror::image_replayer::OpenLocalImageRequest<librbd::ImageCtx>;
#endif // RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
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