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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_JOURNAL_OPEN_REQUEST_H
#define CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H
#include "common/ceph_mutex.h"
#include "include/int_types.h"
#include "librbd/journal/TypeTraits.h"
struct Context;
namespace librbd {
struct ImageCtx;
namespace journal {
struct ImageClientMeta;
struct TagData;
template <typename ImageCtxT = ImageCtx>
class OpenRequest {
public:
typedef typename TypeTraits<ImageCtxT>::Journaler Journaler;
static OpenRequest* create(ImageCtxT *image_ctx, Journaler *journaler,
ceph::mutex *lock, journal::ImageClientMeta *client_meta,
uint64_t *tag_tid, journal::TagData *tag_data,
Context *on_finish) {
return new OpenRequest(image_ctx, journaler, lock, client_meta, tag_tid,
tag_data, on_finish);
}
OpenRequest(ImageCtxT *image_ctx, Journaler *journaler, ceph::mutex *lock,
journal::ImageClientMeta *client_meta, uint64_t *tag_tid,
journal::TagData *tag_data, Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v
* INIT
* |
* v
* GET_TAGS
* |
* v
* <finish>
*
* @endverbatim
*/
ImageCtxT *m_image_ctx;
Journaler *m_journaler;
ceph::mutex *m_lock;
journal::ImageClientMeta *m_client_meta;
uint64_t *m_tag_tid;
journal::TagData *m_tag_data;
Context *m_on_finish;
uint64_t m_tag_class = 0;
void send_init();
void handle_init(int r);
void send_get_tags();
void handle_get_tags(int r);
void finish(int r);
};
} // namespace journal
} // namespace librbd
extern template class librbd::journal::OpenRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H
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