diff options
Diffstat (limited to '')
-rw-r--r-- | src/tools/rbd_mirror/image_replayer/journal/SyncPointHandler.cc | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_replayer/journal/SyncPointHandler.cc b/src/tools/rbd_mirror/image_replayer/journal/SyncPointHandler.cc new file mode 100644 index 000000000..66d13e555 --- /dev/null +++ b/src/tools/rbd_mirror/image_replayer/journal/SyncPointHandler.cc @@ -0,0 +1,109 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#include "SyncPointHandler.h" +#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" + +#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::" \ + << "SyncPointHandler: " << this << " " \ + << __func__ << ": " + +namespace rbd { +namespace mirror { +namespace image_replayer { +namespace journal { + +template <typename I> +SyncPointHandler<I>::SyncPointHandler(StateBuilder<I>* state_builder) + : m_state_builder(state_builder), + m_client_meta_copy(state_builder->remote_client_meta) { +} + +template <typename I> +typename SyncPointHandler<I>::SyncPoints +SyncPointHandler<I>::get_sync_points() const { + SyncPoints sync_points; + for (auto& sync_point : m_client_meta_copy.sync_points) { + sync_points.emplace_back( + sync_point.snap_namespace, + sync_point.snap_name, + sync_point.from_snap_name, + sync_point.object_number); + } + return sync_points; +} + +template <typename I> +librbd::SnapSeqs SyncPointHandler<I>::get_snap_seqs() const { + return m_client_meta_copy.snap_seqs; +} + +template <typename I> +void SyncPointHandler<I>::update_sync_points( + const librbd::SnapSeqs& snap_seqs, const SyncPoints& sync_points, + bool sync_complete, Context* on_finish) { + dout(10) << dendl; + + if (sync_complete && sync_points.empty()) { + m_client_meta_copy.state = librbd::journal::MIRROR_PEER_STATE_REPLAYING; + } + + m_client_meta_copy.snap_seqs = snap_seqs; + m_client_meta_copy.sync_points.clear(); + for (auto& sync_point : sync_points) { + m_client_meta_copy.sync_points.emplace_back( + sync_point.snap_namespace, + sync_point.snap_name, + sync_point.from_snap_name, + sync_point.object_number); + + if (sync_point.object_number) { + m_client_meta_copy.sync_object_count = std::max( + m_client_meta_copy.sync_object_count, *sync_point.object_number + 1); + } + } + + dout(20) << "client_meta=" << m_client_meta_copy << dendl; + bufferlist client_data_bl; + librbd::journal::ClientData client_data{m_client_meta_copy}; + encode(client_data, client_data_bl); + + auto ctx = new LambdaContext([this, on_finish](int r) { + handle_update_sync_points(r, on_finish); + }); + m_state_builder->remote_journaler->update_client(client_data_bl, ctx); +} + +template <typename I> +void SyncPointHandler<I>::handle_update_sync_points(int r, Context* on_finish) { + dout(10) << "r=" << r << dendl; + + if (r >= 0) { + m_state_builder->remote_client_meta.snap_seqs = + m_client_meta_copy.snap_seqs; + m_state_builder->remote_client_meta.sync_points = + m_client_meta_copy.sync_points; + } else { + derr << "failed to update remote journal client meta for image " + << m_state_builder->global_image_id << ": " << cpp_strerror(r) + << dendl; + } + + on_finish->complete(r); +} + +} // namespace journal +} // namespace image_sync +} // namespace mirror +} // namespace rbd + +template class rbd::mirror::image_replayer::journal::SyncPointHandler<librbd::ImageCtx>; |