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-rw-r--r--src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h b/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.h
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+++ b/src/tools/rbd_mirror/image_replayer/OpenLocalImageRequest.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 RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
+#define RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
+
+#include "include/int_types.h"
+#include "cls/rbd/cls_rbd_types.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/mirror/Types.h"
+#include <string>
+
+class Context;
+namespace librbd {
+class ImageCtx;
+namespace asio { struct ContextWQ; }
+} // namespace librbd
+
+namespace rbd {
+namespace mirror {
+namespace image_replayer {
+
+template <typename ImageCtxT = librbd::ImageCtx>
+class OpenLocalImageRequest {
+public:
+ static OpenLocalImageRequest* create(librados::IoCtx &local_io_ctx,
+ ImageCtxT **local_image_ctx,
+ const std::string &local_image_id,
+ librbd::asio::ContextWQ *work_queue,
+ Context *on_finish) {
+ return new OpenLocalImageRequest(local_io_ctx, local_image_ctx,
+ local_image_id, work_queue, on_finish);
+ }
+
+ OpenLocalImageRequest(librados::IoCtx &local_io_ctx,
+ ImageCtxT **local_image_ctx,
+ const std::string &local_image_id,
+ librbd::asio::ContextWQ *work_queue,
+ Context *on_finish);
+
+ void send();
+
+private:
+ /**
+ * @verbatim
+ *
+ * <start>
+ * |
+ * v
+ * OPEN_IMAGE * * * * * * * *
+ * | *
+ * v *
+ * GET_MIRROR_INFO * * * * *
+ * | *
+ * v (skip if primary) v
+ * LOCK_IMAGE * * * > CLOSE_IMAGE
+ * | |
+ * v |
+ * <finish> <---------------/
+ *
+ * @endverbatim
+ */
+ librados::IoCtx &m_local_io_ctx;
+ ImageCtxT **m_local_image_ctx;
+ std::string m_local_image_id;
+ librbd::asio::ContextWQ *m_work_queue;
+ Context *m_on_finish;
+
+ cls::rbd::MirrorImage m_mirror_image;
+ librbd::mirror::PromotionState m_promotion_state =
+ librbd::mirror::PROMOTION_STATE_NON_PRIMARY;
+ std::string m_primary_mirror_uuid;
+ int m_ret_val = 0;
+
+ void send_open_image();
+ void handle_open_image(int r);
+
+ void send_get_mirror_info();
+ void handle_get_mirror_info(int r);
+
+ void send_lock_image();
+ void handle_lock_image(int r);
+
+ void send_close_image(int r);
+ void handle_close_image(int r);
+
+ void finish(int r);
+
+};
+
+} // namespace image_replayer
+} // namespace mirror
+} // namespace rbd
+
+extern template class rbd::mirror::image_replayer::OpenLocalImageRequest<librbd::ImageCtx>;
+
+#endif // RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H