X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftools%2Frbd_mirror%2Fimage_sync%2FSyncPointCreateRequest.cc;fp=src%2Fceph%2Fsrc%2Ftools%2Frbd_mirror%2Fimage_sync%2FSyncPointCreateRequest.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=5323d7d2b8e714bf225cfa729f3ee08661048462;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/tools/rbd_mirror/image_sync/SyncPointCreateRequest.cc b/src/ceph/src/tools/rbd_mirror/image_sync/SyncPointCreateRequest.cc deleted file mode 100644 index 5323d7d..0000000 --- a/src/ceph/src/tools/rbd_mirror/image_sync/SyncPointCreateRequest.cc +++ /dev/null @@ -1,181 +0,0 @@ -// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- -// vim: ts=8 sw=2 smarttab - -#include "SyncPointCreateRequest.h" -#include "include/uuid.h" -#include "common/errno.h" -#include "journal/Journaler.h" -#include "librbd/ImageCtx.h" -#include "librbd/ImageState.h" -#include "librbd/Operations.h" -#include "librbd/Utils.h" - -#define dout_context g_ceph_context -#define dout_subsys ceph_subsys_rbd_mirror -#undef dout_prefix -#define dout_prefix *_dout << "rbd::mirror::image_sync::SyncPointCreateRequest: " \ - << this << " " << __func__ - -namespace rbd { -namespace mirror { -namespace image_sync { - -namespace { - -static const std::string SNAP_NAME_PREFIX(".rbd-mirror"); - -} // anonymous namespace - -using librbd::util::create_context_callback; - -template -SyncPointCreateRequest::SyncPointCreateRequest(I *remote_image_ctx, - const std::string &mirror_uuid, - Journaler *journaler, - MirrorPeerClientMeta *client_meta, - Context *on_finish) - : m_remote_image_ctx(remote_image_ctx), m_mirror_uuid(mirror_uuid), - m_journaler(journaler), m_client_meta(client_meta), m_on_finish(on_finish), - m_client_meta_copy(*client_meta) { - assert(m_client_meta->sync_points.size() < 2); - - // initialize the updated client meta with the new sync point - m_client_meta_copy.sync_points.emplace_back(); - if (m_client_meta_copy.sync_points.size() > 1) { - m_client_meta_copy.sync_points.back().from_snap_name = - m_client_meta_copy.sync_points.front().snap_name; - } -} - -template -void SyncPointCreateRequest::send() { - send_update_client(); -} - -template -void SyncPointCreateRequest::send_update_client() { - uuid_d uuid_gen; - uuid_gen.generate_random(); - - MirrorPeerSyncPoint &sync_point = m_client_meta_copy.sync_points.back(); - sync_point.snap_name = SNAP_NAME_PREFIX + "." + m_mirror_uuid + "." + - uuid_gen.to_string(); - - dout(20) << ": sync_point=" << sync_point << dendl; - - bufferlist client_data_bl; - librbd::journal::ClientData client_data(m_client_meta_copy); - ::encode(client_data, client_data_bl); - - Context *ctx = create_context_callback< - SyncPointCreateRequest, &SyncPointCreateRequest::handle_update_client>( - this); - m_journaler->update_client(client_data_bl, ctx); -} - -template -void SyncPointCreateRequest::handle_update_client(int r) { - dout(20) << ": r=" << r << dendl; - - if (r < 0) { - derr << ": failed to update client data: " << cpp_strerror(r) - << dendl; - finish(r); - return; - } - - // update provided meta structure to reflect reality - *m_client_meta = m_client_meta_copy; - - send_refresh_image(); -} - -template -void SyncPointCreateRequest::send_refresh_image() { - dout(20) << dendl; - - Context *ctx = create_context_callback< - SyncPointCreateRequest, &SyncPointCreateRequest::handle_refresh_image>( - this); - m_remote_image_ctx->state->refresh(ctx); -} - -template -void SyncPointCreateRequest::handle_refresh_image(int r) { - dout(20) << ": r=" << r << dendl; - - if (r < 0) { - derr << ": remote image refresh failed: " << cpp_strerror(r) << dendl; - finish(r); - return; - } - - send_create_snap(); -} - -template -void SyncPointCreateRequest::send_create_snap() { - dout(20) << dendl; - - MirrorPeerSyncPoint &sync_point = m_client_meta_copy.sync_points.back(); - - Context *ctx = create_context_callback< - SyncPointCreateRequest, &SyncPointCreateRequest::handle_create_snap>( - this); - m_remote_image_ctx->operations->snap_create( - cls::rbd::UserSnapshotNamespace(), sync_point.snap_name.c_str(), ctx); -} - -template -void SyncPointCreateRequest::handle_create_snap(int r) { - dout(20) << ": r=" << r << dendl; - - if (r == -EEXIST) { - send_update_client(); - return; - } else if (r < 0) { - derr << ": failed to create snapshot: " << cpp_strerror(r) << dendl; - finish(r); - return; - } - - send_final_refresh_image(); -} - -template -void SyncPointCreateRequest::send_final_refresh_image() { - dout(20) << dendl; - - Context *ctx = create_context_callback< - SyncPointCreateRequest, - &SyncPointCreateRequest::handle_final_refresh_image>(this); - m_remote_image_ctx->state->refresh(ctx); -} - -template -void SyncPointCreateRequest::handle_final_refresh_image(int r) { - dout(20) << ": r=" << r << dendl; - - if (r < 0) { - derr << ": failed to refresh image for snapshot: " << cpp_strerror(r) - << dendl; - finish(r); - return; - } - - finish(0); -} - -template -void SyncPointCreateRequest::finish(int r) { - dout(20) << ": r=" << r << dendl; - - m_on_finish->complete(r); - delete this; -} - -} // namespace image_sync -} // namespace mirror -} // namespace rbd - -template class rbd::mirror::image_sync::SyncPointCreateRequest;