Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/src/librbd/mirror/EnableRequest.h b/src/librbd/mirror/EnableRequest.h
new file mode 100644
index 000000000..391028e6e
--- /dev/null
+++ b/src/librbd/mirror/EnableRequest.h
@@ -0,0 +1,135 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_MIRROR_ENABLE_REQUEST_H
+#define CEPH_LIBRBD_MIRROR_ENABLE_REQUEST_H
+
+#include "include/buffer_fwd.h"
+#include "include/rados/librados_fwd.hpp"
+#include "include/rbd/librbd.hpp"
+#include "cls/rbd/cls_rbd_types.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/mirror/Types.h"
+#include <map>
+#include <string>
+
+class Context;
+
+namespace librbd {
+
+namespace asio { struct ContextWQ; }
+
+namespace mirror {
+
+template <typename ImageCtxT = ImageCtx>
+class EnableRequest {
+public:
+  static EnableRequest *create(ImageCtxT *image_ctx,
+                               cls::rbd::MirrorImageMode mode,
+                               const std::string &non_primary_global_image_id,
+                               bool image_clean, Context *on_finish) {
+    return new EnableRequest(image_ctx->md_ctx, image_ctx->id, image_ctx, mode,
+                             non_primary_global_image_id, image_clean,
+                             image_ctx->op_work_queue, on_finish);
+  }
+  static EnableRequest *create(librados::IoCtx &io_ctx,
+                               const std::string &image_id,
+                               cls::rbd::MirrorImageMode mode,
+                               const std::string &non_primary_global_image_id,
+                               bool image_clean, asio::ContextWQ *op_work_queue,
+                               Context *on_finish) {
+    return new EnableRequest(io_ctx, image_id, nullptr, mode,
+                             non_primary_global_image_id, image_clean,
+                             op_work_queue, on_finish);
+  }
+
+  void send();
+
+private:
+  /**
+   * @verbatim
+   *
+   * <start>
+   *    |
+   *    v
+   * GET_MIRROR_IMAGE * * * * * * *
+   *    |                         * (on error)
+   *    v (skip if not needed)    *
+   * GET_TAG_OWNER  * * * * * * * *
+   *    |                         *
+   *    v (skip if not needed)    *
+   * OPEN_IMAGE                   *
+   *    |                         *
+   *    v (skip if not needed)    *
+   * CREATE_PRIMARY_SNAPSHOT  * * *
+   *    |                         *
+   *    v (skip of not opened)    *
+   * CLOSE_IMAGE                  *
+   *    |                         *
+   *    v (skip if not needed)    *
+   * ENABLE_NON_PRIMARY_FEATURE   *
+   *    |                         *
+   *    v (skip if not needed)    *
+   * IMAGE_STATE_UPDATE * * * * * *
+   *    |                         *
+   *    v                         *
+   * <finish>   < * * * * * * * * *
+   *
+   * @endverbatim
+   */
+
+  EnableRequest(librados::IoCtx &io_ctx, const std::string &image_id,
+                ImageCtxT* image_ctx, cls::rbd::MirrorImageMode mode,
+                const std::string &non_primary_global_image_id,
+                bool image_clean, asio::ContextWQ *op_work_queue,
+                Context *on_finish);
+
+  librados::IoCtx &m_io_ctx;
+  std::string m_image_id;
+  ImageCtxT* m_image_ctx;
+  cls::rbd::MirrorImageMode m_mode;
+  std::string m_non_primary_global_image_id;
+  bool m_image_clean;
+  asio::ContextWQ *m_op_work_queue;
+  Context *m_on_finish;
+
+  CephContext *m_cct = nullptr;
+  bufferlist m_out_bl;
+  cls::rbd::MirrorImage m_mirror_image;
+
+  int m_ret_val = 0;
+  bool m_close_image = false;
+
+  bool m_is_primary = false;
+  uint64_t m_snap_id = CEPH_NOSNAP;
+
+  void get_mirror_image();
+  void handle_get_mirror_image(int r);
+
+  void get_tag_owner();
+  void handle_get_tag_owner(int r);
+
+  void open_image();
+  void handle_open_image(int r);
+
+  void create_primary_snapshot();
+  void handle_create_primary_snapshot(int r);
+
+  void close_image();
+  void handle_close_image(int r);
+
+  void enable_non_primary_feature();
+  void handle_enable_non_primary_feature(int r);
+
+  void image_state_update();
+  void handle_image_state_update(int r);
+
+  void finish(int r);
+};
+
+} // namespace mirror
+} // namespace librbd
+
+extern template class librbd::mirror::EnableRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_MIRROR_ENABLE_REQUEST_H