initial code repo

[stor4nfv.git] / src / ceph / src / librbd / operation / ObjectMapIterate.h

diff --git a/src/ceph/src/librbd/operation/ObjectMapIterate.h b/src/ceph/src/librbd/operation/ObjectMapIterate.h
new file mode 100644 (file)
index 0000000..b46f876
--- /dev/null
+++ b/src/ceph/src/librbd/operation/ObjectMapIterate.h
@@ -0,0 +1,65 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#ifndef CEPH_LIBRBD_OPERATION_OBJECT_MAP_ITERATE_H
+#define CEPH_LIBRBD_OPERATION_OBJECT_MAP_ITERATE_H
+
+#include <iostream>
+#include <atomic>
+
+#include "include/int_types.h"
+#include "include/rbd/object_map_types.h"
+#include "librbd/AsyncRequest.h"
+
+namespace librbd {
+
+class ImageCtx;
+class ProgressContext;
+
+namespace operation {
+
+template <typename ImageCtxT = ImageCtx>
+using ObjectIterateWork = bool(*)(ImageCtxT &image_ctx,
+                                 uint64_t object_no,
+                                 uint8_t current_state,
+                                 uint8_t new_state);
+
+template <typename ImageCtxT = ImageCtx>
+class ObjectMapIterateRequest : public AsyncRequest<ImageCtxT> {
+public:
+  ObjectMapIterateRequest(ImageCtxT &image_ctx, Context *on_finish,
+                         ProgressContext &prog_ctx,
+                         ObjectIterateWork<ImageCtxT> handle_mismatch)
+    : AsyncRequest<ImageCtxT>(image_ctx, on_finish), m_image_ctx(image_ctx),
+    m_prog_ctx(prog_ctx), m_handle_mismatch(handle_mismatch)
+  {
+  }
+
+  void send() override;
+
+protected:
+  bool should_complete(int r) override;
+
+private:
+  enum State {
+    STATE_VERIFY_OBJECTS,
+    STATE_INVALIDATE_OBJECT_MAP
+  };
+
+  ImageCtxT &m_image_ctx;
+  ProgressContext &m_prog_ctx;
+  ObjectIterateWork<ImageCtxT> m_handle_mismatch;
+  std::atomic_flag m_invalidate = ATOMIC_FLAG_INIT;
+  State m_state;
+
+  void send_verify_objects();
+  void send_invalidate_object_map();
+
+  uint64_t get_image_size() const;
+};
+
+} // namespace operation
+} // namespace librbd
+
+extern template class librbd::operation::ObjectMapIterateRequest<librbd::ImageCtx>;
+
+#endif