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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_LIST_WATCHERS_REQUEST_H
#define CEPH_LIBRBD_IMAGE_LIST_WATCHERS_REQUEST_H
#include "include/rados/rados_types.hpp"
#include <list>
class Context;
namespace librbd {
class ImageCtx;
namespace image {
enum {
LIST_WATCHERS_FILTER_OUT_MY_INSTANCE = 1 << 0,
LIST_WATCHERS_FILTER_OUT_MIRROR_INSTANCES = 1 << 1,
LIST_WATCHERS_MIRROR_INSTANCES_ONLY = 1 << 3,
};
template<typename ImageCtxT = ImageCtx>
class ListWatchersRequest {
public:
static ListWatchersRequest *create(ImageCtxT &image_ctx, int flags,
std::list<obj_watch_t> *watchers,
Context *on_finish) {
return new ListWatchersRequest(image_ctx, flags, watchers, on_finish);
}
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v
* LIST_IMAGE_WATCHERS
* |
* v
* LIST_MIRROR_WATCHERS (skip if not needed)
* |
* v
* <finish>
*
* @endverbatim
*/
ListWatchersRequest(ImageCtxT &image_ctx, int flags, std::list<obj_watch_t> *watchers,
Context *on_finish);
ImageCtxT& m_image_ctx;
int m_flags;
std::list<obj_watch_t> *m_watchers;
Context *m_on_finish;
CephContext *m_cct;
int m_ret_val;
bufferlist m_out_bl;
std::list<obj_watch_t> m_object_watchers;
std::list<obj_watch_t> m_mirror_watchers;
void list_image_watchers();
void handle_list_image_watchers(int r);
void list_mirror_watchers();
void handle_list_mirror_watchers(int r);
void finish(int r);
};
} // namespace image
} // namespace librbd
extern template class librbd::image::ListWatchersRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_IMAGE_LIST_WATCHERS_REQUEST_H
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