ServiceDaemon.cc
Threads.cc
types.cc
+ image_map/LoadRequest.cc
+ image_map/UpdateRequest.cc
image_replayer/BootstrapRequest.cc
image_replayer/CloseImageRequest.cc
image_replayer/CreateImageRequest.cc
image_sync/SyncPointPruneRequest.cc
pool_watcher/RefreshImagesRequest.cc
service_daemon/Types.cc)
+
add_library(rbd_mirror_internal STATIC
${rbd_mirror_internal})
--- /dev/null
+// -*- 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 "LoadRequest.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::LoadRequest: " \
+ << this << " " << __func__
+
+namespace rbd {
+namespace mirror {
+namespace image_map {
+
+static const uint32_t MAX_RETURN = 1024;
+
+using librbd::util::create_rados_callback;
+
+template<typename I>
+LoadRequest<I>::LoadRequest(librados::IoCtx &ioctx,
+ std::map<std::string, cls::rbd::MirrorImageMap> *image_mapping,
+ Context *on_finish)
+ : m_ioctx(ioctx),
+ m_image_mapping(image_mapping),
+ m_on_finish(on_finish) {
+}
+
+template<typename I>
+void LoadRequest<I>::send() {
+ dout(20) << dendl;
+
+ image_map_list();
+}
+
+template<typename I>
+void LoadRequest<I>::image_map_list() {
+ dout(20) << dendl;
+
+ librados::ObjectReadOperation op;
+ librbd::cls_client::mirror_image_map_list_start(&op, m_start_after, MAX_RETURN);
+
+ librados::AioCompletion *aio_comp = create_rados_callback<
+ LoadRequest, &LoadRequest::handle_image_map_list>(this);
+
+ m_out_bl.clear();
+ int r = m_ioctx.aio_operate(RBD_MIRROR_LEADER, aio_comp, &op, &m_out_bl);
+ assert(r == 0);
+ aio_comp->release();
+}
+
+template<typename I>
+void LoadRequest<I>::handle_image_map_list(int r) {
+ dout(20) << ": r=" << r << dendl;
+
+ std::map<std::string, cls::rbd::MirrorImageMap> image_mapping;
+ if (r == 0) {
+ bufferlist::iterator it = m_out_bl.begin();
+ r = librbd::cls_client::mirror_image_map_list_finish(&it, &image_mapping);
+ }
+
+ if (r < 0) {
+ derr << ": failed to get image map: " << cpp_strerror(r) << dendl;
+ finish(r);
+ return;
+ }
+
+ m_image_mapping->insert(image_mapping.begin(), image_mapping.end());
+
+ if (image_mapping.size() == MAX_RETURN) {
+ m_start_after = image_mapping.rbegin()->first;
+ image_map_list();
+ return;
+ }
+
+ finish(0);
+}
+
+template<typename I>
+void LoadRequest<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::LoadRequest<librbd::ImageCtx>;
--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_RBD_MIRROR_IMAGE_MAP_LOAD_REQUEST_H
+#define CEPH_RBD_MIRROR_IMAGE_MAP_LOAD_REQUEST_H
+
+#include "cls/rbd/cls_rbd_types.h"
+#include "include/rados/librados.hpp"
+
+class Context;
+
+namespace librbd { class ImageCtx; }
+
+namespace rbd {
+namespace mirror {
+namespace image_map {
+
+template<typename ImageCtxT = librbd::ImageCtx>
+class LoadRequest {
+public:
+ static LoadRequest *create(librados::IoCtx &ioctx,
+ std::map<std::string, cls::rbd::MirrorImageMap> *image_mapping,
+ Context *on_finish) {
+ return new LoadRequest(ioctx, image_mapping, on_finish);
+ }
+
+ void send();
+
+private:
+ /**
+ * @verbatim
+ *
+ * <start>
+ * | . . . . . . . .
+ * v v . MAX_RETURN
+ * IMAGE_MAP_LIST. . . . . . .
+ * |
+ * v
+ * <finish>
+ *
+ * @endverbatim
+ */
+ LoadRequest(librados::IoCtx &ioctx,
+ std::map<std::string, cls::rbd::MirrorImageMap> *image_mapping,
+ Context *on_finish);
+
+ librados::IoCtx &m_ioctx;
+ std::map<std::string, cls::rbd::MirrorImageMap> *m_image_mapping;
+ Context *m_on_finish;
+
+ bufferlist m_out_bl;
+ std::string m_start_after;
+
+ void image_map_list();
+ void handle_image_map_list(int r);
+
+ void finish(int r);
+};
+
+} // namespace image_map
+} // namespace mirror
+} // namespace rbd
+
+#endif // CEPH_RBD_MIRROR_IMAGE_MAP_LOAD_REQUEST_H
--- /dev/null
+// -*- 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);
+ 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>;
--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_RBD_MIRROR_IMAGE_MAP_UPDATE_REQUEST_H
+#define CEPH_RBD_MIRROR_IMAGE_MAP_UPDATE_REQUEST_H
+
+#include "cls/rbd/cls_rbd_types.h"
+#include "include/rados/librados.hpp"
+
+class Context;
+
+namespace librbd { class ImageCtx; }
+
+namespace rbd {
+namespace mirror {
+namespace image_map {
+
+template<typename ImageCtxT = librbd::ImageCtx>
+class UpdateRequest {
+public:
+ // accepts an image map for updation and a collection of
+ // global image ids to purge.
+ static UpdateRequest *create(librados::IoCtx &ioctx,
+ std::map<std::string, cls::rbd::MirrorImageMap> &&update_mapping,
+ std::set<std::string> &&remove_global_image_ids, Context *on_finish) {
+ return new UpdateRequest(ioctx, std::move(update_mapping), std::move(remove_global_image_ids),
+ on_finish);
+ }
+
+ void send();
+
+private:
+ /**
+ * @verbatim
+ *
+ * <start>
+ * | . . . . . . . .
+ * v v . MAX_UPDATE
+ * UPDATE_IMAGE_MAP. . . . . . .
+ * |
+ * v
+ * <finish>
+ *
+ * @endverbatim
+ */
+ UpdateRequest(librados::IoCtx &ioctx,
+ std::map<std::string, cls::rbd::MirrorImageMap> &&update_mapping,
+ std::set<std::string> &&remove_global_image_ids, Context *on_finish);
+
+ librados::IoCtx &m_ioctx;
+ std::map<std::string, cls::rbd::MirrorImageMap> m_update_mapping;
+ std::set<std::string> m_remove_global_image_ids;
+ Context *m_on_finish;
+
+ void update_image_map();
+ void handle_update_image_map(int r);
+
+ void finish(int r);
+};
+
+} // namespace image_map
+} // namespace mirror
+} // namespace rbd
+
+#endif // CEPH_RBD_MIRROR_IMAGE_MAP_UPDATE_REQUEST_H
projects / ceph.git / commitdiff