1 files changed, 66 insertions, 0 deletions
diff --git a/src/librbd/image/DetachParentRequest.h b/src/librbd/image/DetachParentRequest.h
new file mode 100644
index 00000000..17c86aaa
--- /dev/null
+++ b/src/librbd/image/DetachParentRequest.h
@@ -0,0 +1,66 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_IMAGE_DETACH_PARENT_REQUEST_H
+#define CEPH_LIBRBD_IMAGE_DETACH_PARENT_REQUEST_H
+
+#include "include/int_types.h"
+#include "include/buffer.h"
+#include "include/rados/librados.hpp"
+#include "librbd/Types.h"
+
+class Context;
+
+namespace librbd {
+
+class ImageCtx;
+
+namespace image {
+
+template <typename ImageCtxT = ImageCtx>
+class DetachParentRequest {
+public:
+  static DetachParentRequest* create(ImageCtxT& image_ctx, Context* on_finish) {
+    return new DetachParentRequest(image_ctx, on_finish);
+  }
+
+  DetachParentRequest(ImageCtxT& image_ctx, Context* on_finish)
+    : m_image_ctx(image_ctx), m_on_finish(on_finish) {
+  }
+
+  void send();
+
+private:
+  /**
+   * @verbatim
+   *
+   * <start>
+   *    |    * * * * * *
+   *    |    *         * -EOPNOTSUPP
+   *    v    v         *
+   * DETACH_PARENT * * *
+   *    |
+   *    v
+   * <finish>
+   *
+   * @endverbatim
+   */
+
+  ImageCtxT& m_image_ctx;
+  Context* m_on_finish;
+
+  bool m_legacy_parent = false;
+
+  void detach_parent();
+  void handle_detach_parent(int r);
+
+  void finish(int r);
+
+};
+
+} // namespace image
+} // namespace librbd
+
+extern template class librbd::image::DetachParentRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_IMAGE_DETACH_PARENT_REQUEST_H