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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_MIRRORING_WATCHER_H
#define CEPH_LIBRBD_MIRRORING_WATCHER_H
#include "include/int_types.h"
#include "include/rados/librados_fwd.hpp"
#include "cls/rbd/cls_rbd_types.h"
#include "librbd/ImageCtx.h"
#include "librbd/Watcher.h"
#include "librbd/mirroring_watcher/Types.h"
namespace librbd {
namespace asio { struct ContextWQ; }
namespace watcher {
namespace util {
template <typename> struct HandlePayloadVisitor;
}
}
template <typename ImageCtxT = librbd::ImageCtx>
class MirroringWatcher : public Watcher {
friend struct watcher::util::HandlePayloadVisitor<MirroringWatcher<ImageCtxT>>;
public:
MirroringWatcher(librados::IoCtx &io_ctx, asio::ContextWQ *work_queue);
static int notify_mode_updated(librados::IoCtx &io_ctx,
cls::rbd::MirrorMode mirror_mode);
static void notify_mode_updated(librados::IoCtx &io_ctx,
cls::rbd::MirrorMode mirror_mode,
Context *on_finish);
static int notify_image_updated(librados::IoCtx &io_ctx,
cls::rbd::MirrorImageState mirror_image_state,
const std::string &image_id,
const std::string &global_image_id);
static void notify_image_updated(librados::IoCtx &io_ctx,
cls::rbd::MirrorImageState mirror_image_state,
const std::string &image_id,
const std::string &global_image_id,
Context *on_finish);
virtual void handle_mode_updated(cls::rbd::MirrorMode mirror_mode) = 0;
virtual void handle_image_updated(cls::rbd::MirrorImageState state,
const std::string &image_id,
const std::string &global_image_id) = 0;
private:
bool handle_payload(const mirroring_watcher::ModeUpdatedPayload &payload,
Context *on_notify_ack);
bool handle_payload(const mirroring_watcher::ImageUpdatedPayload &payload,
Context *on_notify_ack);
bool handle_payload(const mirroring_watcher::UnknownPayload &payload,
Context *on_notify_ack);
void handle_notify(uint64_t notify_id, uint64_t handle,
uint64_t notifier_id, bufferlist &bl) override;
};
} // namespace librbd
extern template class librbd::MirroringWatcher<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_MIRRORING_WATCHER_H
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