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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_OPEN_REQUEST_H
#define CEPH_LIBRBD_IMAGE_OPEN_REQUEST_H
#include "include/buffer.h"
#include <map>
#include <string>
class Context;
namespace librbd {
class ImageCtx;
namespace image {
template <typename ImageCtxT = ImageCtx>
class OpenRequest {
public:
static OpenRequest *create(ImageCtxT *image_ctx, uint64_t flags,
Context *on_finish) {
return new OpenRequest(image_ctx, flags, on_finish);
}
void send();
private:
/**
* @verbatim
*
* <start>
* |
* | (v1)
* |-----> V1_DETECT_HEADER
* | |
* | \-------------------------------\
* | (v2) |
* \-----> V2_DETECT_HEADER |
* | |
* v |
* V2_GET_ID|NAME |
* | |
* v (skip if have name) |
* V2_GET_NAME_FROM_TRASH |
* | |
* v |
* V2_GET_INITIAL_METADATA |
* | |
* v |
* V2_GET_STRIPE_UNIT_COUNT (skip if |
* | disabled) |
* v |
* V2_GET_CREATE_TIMESTAMP |
* | |
* v |
* V2_GET_ACCESS_MODIFIY_TIMESTAMP |
* | |
* v |
* V2_GET_DATA_POOL --------------> REFRESH
* |
* v
* INIT_PLUGIN_REGISTRY
* |
* v
* INIT_CACHE
* |
* v
* REGISTER_WATCH (skip if
* | read-only)
* v
* SET_SNAP (skip if no snap)
* |
* v
* <finish>
* ^
* (on error) |
* * * * * * * > CLOSE ------------------------/
*
* @endverbatim
*/
OpenRequest(ImageCtxT *image_ctx, uint64_t flags, Context *on_finish);
ImageCtxT *m_image_ctx;
bool m_skip_open_parent_image;
Context *m_on_finish;
bufferlist m_out_bl;
int m_error_result;
void send_v1_detect_header();
Context *handle_v1_detect_header(int *result);
void send_v2_detect_header();
Context *handle_v2_detect_header(int *result);
void send_v2_get_id();
Context *handle_v2_get_id(int *result);
void send_v2_get_name();
Context *handle_v2_get_name(int *result);
void send_v2_get_name_from_trash();
Context *handle_v2_get_name_from_trash(int *result);
void send_v2_get_initial_metadata();
Context *handle_v2_get_initial_metadata(int *result);
void send_v2_get_stripe_unit_count();
Context *handle_v2_get_stripe_unit_count(int *result);
void send_v2_get_create_timestamp();
Context *handle_v2_get_create_timestamp(int *result);
void send_v2_get_access_modify_timestamp();
Context *handle_v2_get_access_modify_timestamp(int *result);
void send_v2_get_data_pool();
Context *handle_v2_get_data_pool(int *result);
void send_refresh();
Context *handle_refresh(int *result);
void send_init_plugin_registry();
Context* handle_init_plugin_registry(int *result);
Context *send_init_cache(int *result);
Context *send_register_watch(int *result);
Context *handle_register_watch(int *result);
Context *send_set_snap(int *result);
Context *handle_set_snap(int *result);
Context *finalize(int r);
void send_close_image(int error_result);
Context *handle_close_image(int *result);
};
} // namespace image
} // namespace librbd
extern template class librbd::image::OpenRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_IMAGE_OPEN_REQUEST_H
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