initial code repo

[stor4nfv.git] / src / ceph / src / tools / rbd_mirror / pool_watcher / RefreshImagesRequest.h

diff --git a/src/ceph/src/tools/rbd_mirror/pool_watcher/RefreshImagesRequest.h b/src/ceph/src/tools/rbd_mirror/pool_watcher/RefreshImagesRequest.h
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+++ b/src/ceph/src/tools/rbd_mirror/pool_watcher/RefreshImagesRequest.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_RBD_MIRROR_POOL_WATCHER_REFRESH_IMAGES_REQUEST_H
+#define CEPH_RBD_MIRROR_POOL_WATCHER_REFRESH_IMAGES_REQUEST_H
+
+#include "include/buffer.h"
+#include "include/rados/librados.hpp"
+#include "tools/rbd_mirror/types.h"
+#include <string>
+
+struct Context;
+
+namespace librbd { struct ImageCtx; }
+
+namespace rbd {
+namespace mirror {
+namespace pool_watcher {
+
+template <typename ImageCtxT = librbd::ImageCtx>
+class RefreshImagesRequest {
+public:
+  static RefreshImagesRequest *create(librados::IoCtx &remote_io_ctx,
+                                      ImageIds *image_ids, Context *on_finish) {
+    return new RefreshImagesRequest(remote_io_ctx, image_ids, on_finish);
+  }
+
+  RefreshImagesRequest(librados::IoCtx &remote_io_ctx, ImageIds *image_ids,
+                       Context *on_finish)
+    : m_remote_io_ctx(remote_io_ctx), m_image_ids(image_ids),
+      m_on_finish(on_finish) {
+  }
+
+  void send();
+
+private:
+  /**
+   * @verbatim
+   *
+   * <start>
+   *    |
+   *    |   /-------------\
+   *    |   |             |
+   *    v   v             | (more images)
+   * MIRROR_IMAGE_LIST ---/
+   *    |
+   *    v
+   * <finish>
+   *
+   * @endverbatim
+   */
+
+  librados::IoCtx &m_remote_io_ctx;
+  ImageIds *m_image_ids;
+  Context *m_on_finish;
+
+  bufferlist m_out_bl;
+  std::string m_start_after;
+
+  void mirror_image_list();
+  void handle_mirror_image_list(int r);
+
+  void finish(int r);
+
+};
+
+} // namespace pool_watcher
+} // namespace mirror
+} // namespace rbd
+
+extern template class rbd::mirror::pool_watcher::RefreshImagesRequest<librbd::ImageCtx>;
+
+#endif // CEPH_RBD_MIRROR_POOL_WATCHER_REFRESH_IMAGES_REQUEST_H