ceph/src/tools/rbd_mirror/image_replayer/CloseImageRequest.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #include "CloseImageRequest.h"
   5 #include "common/debug.h"
   6 #include "common/errno.h"
   7 #include "librbd/ImageCtx.h"
   8 #include "librbd/ImageState.h"
   9 #include "librbd/Utils.h"
  10
  11 #define dout_context g_ceph_context
  12 #define dout_subsys ceph_subsys_rbd_mirror
  13 #undef dout_prefix
  14 #define dout_prefix *_dout << "rbd::mirror::image_replayer::CloseImageRequest: " \
  15                            << this << " " << __func__
  16
  17 namespace rbd {
  18 namespace mirror {
  19 namespace image_replayer {
  20
  21 using librbd::util::create_context_callback;
  22
  23 template <typename I>
  24 CloseImageRequest<I>::CloseImageRequest(I **image_ctx, Context *on_finish)
  25   : m_image_ctx(image_ctx), m_on_finish(on_finish) {
  26 }
  27
  28 template <typename I>
  29 void CloseImageRequest<I>::send() {
  30   close_image();
  31 }
  32
  33 template <typename I>
  34 void CloseImageRequest<I>::close_image() {
  35   dout(20) << dendl;
  36
  37   Context *ctx = create_context_callback<
  38     CloseImageRequest<I>, &CloseImageRequest<I>::handle_close_image>(this);
  39   (*m_image_ctx)->state->close(ctx);
  40 }
  41
  42 template <typename I>
  43 void CloseImageRequest<I>::handle_close_image(int r) {
  44   dout(20) << ": r=" << r << dendl;
  45
  46   if (r < 0) {
  47     derr << ": error encountered while closing image: " << cpp_strerror(r)
  48          << dendl;
  49   }
  50
  51   *m_image_ctx = nullptr;
  52
  53   m_on_finish->complete(0);
  54   delete this;
  55 }
  56
  57 } // namespace image_replayer
  58 } // namespace mirror
  59 } // namespace rbd
  60
  61 template class rbd::mirror::image_replayer::CloseImageRequest<librbd::ImageCtx>;
  62