src/ceph/src/librbd/object_map/UnlockRequest.h

   1 // -*- mode:C; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #ifndef CEPH_LIBRBD_OBJECT_MAP_UNLOCK_REQUEST_H
   5 #define CEPH_LIBRBD_OBJECT_MAP_UNLOCK_REQUEST_H
   6
   7 class Context;
   8
   9 namespace librbd {
  10
  11 class ImageCtx;
  12
  13 namespace object_map {
  14
  15 template <typename ImageCtxT = ImageCtx>
  16 class UnlockRequest {
  17 public:
  18   static UnlockRequest *create(ImageCtxT &image_ctx, Context *on_finish) {
  19     return new UnlockRequest(image_ctx, on_finish);
  20   }
  21
  22   UnlockRequest(ImageCtxT &image_ctx, Context *on_finish);
  23
  24   void send();
  25
  26 private:
  27   /**
  28    * @verbatim
  29    *
  30    * <start> ----> UNLOCK ----> <finish>
  31    *
  32    * @endverbatim
  33    */
  34
  35   ImageCtxT &m_image_ctx;
  36   Context *m_on_finish;
  37
  38   void send_unlock();
  39   Context* handle_unlock(int *ret_val);
  40 };
  41
  42 } // namespace object_map
  43 } // namespace librbd
  44
  45 extern template class librbd::object_map::UnlockRequest<librbd::ImageCtx>;
  46
  47 #endif // CEPH_LIBRBD_OBJECT_MAP_UNLOCK_REQUEST_H