1 files changed, 100 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_map/UpdateRequest.cc b/src/tools/rbd_mirror/image_map/UpdateRequest.cc
new file mode 100644
index 000000000..799c5670f
--- /dev/null
+++ b/src/tools/rbd_mirror/image_map/UpdateRequest.cc
@@ -0,0 +1,100 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "common/debug.h"
+#include "common/errno.h"
+
+#include "librbd/Utils.h"
+#include "include/rbd_types.h"
+#include "cls/rbd/cls_rbd_client.h"
+
+#include "UpdateRequest.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rbd_mirror
+#undef dout_prefix
+#define dout_prefix *_dout << "rbd::mirror::image_map::UpdateRequest: "   \
+                           << this << " " << __func__
+
+namespace rbd {
+namespace mirror {
+namespace image_map {
+
+using librbd::util::create_rados_callback;
+
+static const uint32_t MAX_UPDATE = 256;
+
+template <typename I>
+UpdateRequest<I>::UpdateRequest(librados::IoCtx &ioctx,
+                                std::map<std::string, cls::rbd::MirrorImageMap> &&update_mapping,
+                                std::set<std::string> &&remove_global_image_ids, Context *on_finish)
+  : m_ioctx(ioctx),
+    m_update_mapping(update_mapping),
+    m_remove_global_image_ids(remove_global_image_ids),
+    m_on_finish(on_finish) {
+}
+
+template <typename I>
+void UpdateRequest<I>::send() {
+  dout(20) << dendl;
+
+  update_image_map();
+}
+
+template <typename I>
+void UpdateRequest<I>::update_image_map() {
+  dout(20) << dendl;
+
+  if (m_update_mapping.empty() && m_remove_global_image_ids.empty()) {
+    finish(0);
+    return;
+  }
+
+  uint32_t nr_updates = 0;
+  librados::ObjectWriteOperation op;
+
+  auto it1 = m_update_mapping.begin();
+  while (it1 != m_update_mapping.end() && nr_updates++ < MAX_UPDATE) {
+    librbd::cls_client::mirror_image_map_update(&op, it1->first, it1->second);
+    it1 = m_update_mapping.erase(it1);
+  }
+
+  auto it2 = m_remove_global_image_ids.begin();
+  while (it2 != m_remove_global_image_ids.end() && nr_updates++ < MAX_UPDATE) {
+    librbd::cls_client::mirror_image_map_remove(&op, *it2);
+    it2 = m_remove_global_image_ids.erase(it2);
+  }
+
+  librados::AioCompletion *aio_comp = create_rados_callback<
+    UpdateRequest, &UpdateRequest::handle_update_image_map>(this);
+  int r = m_ioctx.aio_operate(RBD_MIRROR_LEADER, aio_comp, &op);
+  ceph_assert(r == 0);
+  aio_comp->release();
+}
+
+template <typename I>
+void UpdateRequest<I>::handle_update_image_map(int r) {
+  dout(20) << ": r=" << r << dendl;
+
+  if (r < 0) {
+    derr << ": failed to update image map: " << cpp_strerror(r) << dendl;
+    finish(r);
+    return;
+  }
+
+  update_image_map();
+}
+
+template <typename I>
+void UpdateRequest<I>::finish(int r) {
+  dout(20) << ": r=" << r << dendl;
+
+  m_on_finish->complete(r);
+  delete this;
+}
+
+} // namespace image_map
+} // namespace mirror
+} // namespace rbd
+
+template class rbd::mirror::image_map::UpdateRequest<librbd::ImageCtx>;