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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #include "PrepareReplayRequest.h" | |
5 | #include "common/debug.h" | |
6 | #include "common/dout.h" | |
7 | #include "common/errno.h" | |
8 | #include "librbd/ImageCtx.h" | |
9 | #include "librbd/Utils.h" | |
10 | #include "librbd/mirror/snapshot/ImageMeta.h" | |
11 | #include "tools/rbd_mirror/ProgressContext.h" | |
12 | #include "tools/rbd_mirror/image_replayer/snapshot/StateBuilder.h" | |
13 | ||
14 | #define dout_context g_ceph_context | |
15 | #define dout_subsys ceph_subsys_rbd_mirror | |
16 | #undef dout_prefix | |
17 | #define dout_prefix *_dout << "rbd::mirror::image_replayer::snapshot::" \ | |
18 | << "PrepareReplayRequest: " << this << " " \ | |
19 | << __func__ << ": " | |
20 | ||
21 | namespace rbd { | |
22 | namespace mirror { | |
23 | namespace image_replayer { | |
24 | namespace snapshot { | |
25 | ||
26 | using librbd::util::create_context_callback; | |
27 | ||
28 | template <typename I> | |
29 | void PrepareReplayRequest<I>::send() { | |
30 | *m_resync_requested = false; | |
31 | *m_syncing = false; | |
32 | ||
33 | load_local_image_meta(); | |
34 | } | |
35 | ||
36 | template <typename I> | |
37 | void PrepareReplayRequest<I>::load_local_image_meta() { | |
38 | dout(15) << dendl; | |
39 | ||
40 | ceph_assert(m_state_builder->local_image_meta == nullptr); | |
41 | m_state_builder->local_image_meta = | |
42 | librbd::mirror::snapshot::ImageMeta<I>::create( | |
43 | m_state_builder->local_image_ctx, m_local_mirror_uuid); | |
44 | ||
45 | auto ctx = create_context_callback< | |
46 | PrepareReplayRequest<I>, | |
47 | &PrepareReplayRequest<I>::handle_load_local_image_meta>(this); | |
48 | m_state_builder->local_image_meta->load(ctx); | |
49 | } | |
50 | ||
51 | template <typename I> | |
52 | void PrepareReplayRequest<I>::handle_load_local_image_meta(int r) { | |
53 | dout(15) << "r=" << r << dendl; | |
54 | ||
55 | if (r < 0 && r != -ENOENT) { | |
56 | derr << "failed to load local image-meta: " << cpp_strerror(r) << dendl; | |
57 | finish(r); | |
58 | return; | |
59 | } | |
60 | ||
61 | *m_resync_requested = m_state_builder->local_image_meta->resync_requested; | |
62 | finish(0); | |
63 | } | |
64 | ||
65 | } // namespace snapshot | |
66 | } // namespace image_replayer | |
67 | } // namespace mirror | |
68 | } // namespace rbd | |
69 | ||
70 | template class rbd::mirror::image_replayer::snapshot::PrepareReplayRequest<librbd::ImageCtx>; |