initial code repo

[stor4nfv.git] / src / ceph / src / librbd / object_map / RemoveRequest.h

diff --git a/src/ceph/src/librbd/object_map/RemoveRequest.h b/src/ceph/src/librbd/object_map/RemoveRequest.h
new file mode 100644 (file)
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--- /dev/null
+++ b/src/ceph/src/librbd/object_map/RemoveRequest.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_LIBRBD_OBJECT_MAP_REMOVE_REQUEST_H
+#define CEPH_LIBRBD_OBJECT_MAP_REMOVE_REQUEST_H
+
+#include "include/buffer.h"
+#include "common/Mutex.h"
+#include <map>
+#include <string>
+
+class Context;
+
+namespace librbd {
+
+class ImageCtx;
+
+namespace object_map {
+
+template <typename ImageCtxT = ImageCtx>
+class RemoveRequest {
+public:
+  static RemoveRequest *create(ImageCtxT *image_ctx, Context *on_finish) {
+    return new RemoveRequest(image_ctx, on_finish);
+  }
+
+  void send();
+
+private:
+  /**
+   * @verbatim
+   *
+   * <start>
+   *    |          .  .  .
+   *    v          v     .
+   * REMOVE_OBJECT_MAP   . (for every snapshot)
+   *    |          .     .
+   *    v          .  .  .
+   * <finis>
+   *
+   * @endverbatim
+   */
+
+  RemoveRequest(ImageCtxT *image_ctx, Context *on_finish);
+
+  ImageCtxT *m_image_ctx;
+  Context *m_on_finish;
+
+  int m_error_result = 0;
+  int m_ref_counter = 0;
+  mutable Mutex m_lock;
+
+  void send_remove_object_map();
+  Context *handle_remove_object_map(int *result);
+};
+
+} // namespace object_map
+} // namespace librbd
+
+extern template class librbd::object_map::RemoveRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_OBJECT_MAP_REMOVE_REQUEST_H