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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "StateBuilder.h"
#include "include/ceph_assert.h"
#include "include/Context.h"
#include "common/debug.h"
#include "common/errno.h"
#include "journal/Journaler.h"
#include "librbd/ImageCtx.h"
#include "librbd/Journal.h"
#include "tools/rbd_mirror/image_replayer/journal/CreateLocalImageRequest.h"
#include "tools/rbd_mirror/image_replayer/journal/PrepareReplayRequest.h"
#include "tools/rbd_mirror/image_replayer/journal/Replayer.h"
#include "tools/rbd_mirror/image_replayer/journal/SyncPointHandler.h"
#define dout_context g_ceph_context
#define dout_subsys ceph_subsys_rbd_mirror
#undef dout_prefix
#define dout_prefix *_dout << "rbd::mirror::image_replayer::journal::" \
<< "StateBuilder: " << this << " " \
<< __func__ << ": "
namespace rbd {
namespace mirror {
namespace image_replayer {
namespace journal {
template <typename I>
StateBuilder<I>::StateBuilder(const std::string& global_image_id)
: image_replayer::StateBuilder<I>(global_image_id) {
}
template <typename I>
StateBuilder<I>::~StateBuilder() {
ceph_assert(remote_journaler == nullptr);
}
template <typename I>
void StateBuilder<I>::close(Context* on_finish) {
dout(10) << dendl;
// close the remote journaler after closing the local image
// in case we have lost contact w/ the remote cluster and
// will block
on_finish = new LambdaContext([this, on_finish](int) {
shut_down_remote_journaler(on_finish);
});
on_finish = new LambdaContext([this, on_finish](int) {
this->close_local_image(on_finish);
});
this->close_remote_image(on_finish);
}
template <typename I>
bool StateBuilder<I>::is_disconnected() const {
return (remote_client_state == cls::journal::CLIENT_STATE_DISCONNECTED);
}
template <typename I>
bool StateBuilder<I>::is_linked_impl() const {
ceph_assert(!this->remote_mirror_uuid.empty());
return (local_primary_mirror_uuid == this->remote_mirror_uuid);
}
template <typename I>
cls::rbd::MirrorImageMode StateBuilder<I>::get_mirror_image_mode() const {
return cls::rbd::MIRROR_IMAGE_MODE_JOURNAL;
}
template <typename I>
image_sync::SyncPointHandler* StateBuilder<I>::create_sync_point_handler() {
dout(10) << dendl;
this->m_sync_point_handler = SyncPointHandler<I>::create(this);
return this->m_sync_point_handler;
}
template <typename I>
BaseRequest* StateBuilder<I>::create_local_image_request(
Threads<I>* threads,
librados::IoCtx& local_io_ctx,
const std::string& global_image_id,
PoolMetaCache* pool_meta_cache,
ProgressContext* progress_ctx,
Context* on_finish) {
return CreateLocalImageRequest<I>::create(
threads, local_io_ctx, this->remote_image_ctx, this->global_image_id,
pool_meta_cache, progress_ctx, this, on_finish);
}
template <typename I>
BaseRequest* StateBuilder<I>::create_prepare_replay_request(
const std::string& local_mirror_uuid,
ProgressContext* progress_ctx,
bool* resync_requested,
bool* syncing,
Context* on_finish) {
return PrepareReplayRequest<I>::create(
local_mirror_uuid, progress_ctx, this, resync_requested, syncing,
on_finish);
}
template <typename I>
image_replayer::Replayer* StateBuilder<I>::create_replayer(
Threads<I>* threads,
InstanceWatcher<I>* instance_watcher,
const std::string& local_mirror_uuid,
PoolMetaCache* pool_meta_cache,
ReplayerListener* replayer_listener) {
return Replayer<I>::create(
threads, local_mirror_uuid, this, replayer_listener);
}
template <typename I>
void StateBuilder<I>::shut_down_remote_journaler(Context* on_finish) {
if (remote_journaler == nullptr) {
on_finish->complete(0);
return;
}
dout(10) << dendl;
auto ctx = new LambdaContext([this, on_finish](int r) {
handle_shut_down_remote_journaler(r, on_finish);
});
remote_journaler->shut_down(ctx);
}
template <typename I>
void StateBuilder<I>::handle_shut_down_remote_journaler(int r,
Context* on_finish) {
dout(10) << "r=" << r << dendl;
if (r < 0) {
derr << "failed to shut down remote journaler: " << cpp_strerror(r)
<< dendl;
}
delete remote_journaler;
remote_journaler = nullptr;
on_finish->complete(r);
}
} // namespace journal
} // namespace image_replayer
} // namespace mirror
} // namespace rbd
template class rbd::mirror::image_replayer::journal::StateBuilder<librbd::ImageCtx>;
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