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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 | #ifndef RBD_MIRROR_IMAGE_REPLAYER_JOURNAL_PREPARE_REPLAY_REQUEST_H | |
5 | #define RBD_MIRROR_IMAGE_REPLAYER_JOURNAL_PREPARE_REPLAY_REQUEST_H | |
6 | ||
7 | #include "include/int_types.h" | |
8 | #include "cls/journal/cls_journal_types.h" | |
9 | #include "librbd/journal/Types.h" | |
10 | #include "librbd/mirror/Types.h" | |
11 | #include "tools/rbd_mirror/BaseRequest.h" | |
12 | #include <list> | |
13 | #include <string> | |
14 | ||
15 | struct Context; | |
16 | namespace librbd { struct ImageCtx; } | |
17 | ||
18 | namespace rbd { | |
19 | namespace mirror { | |
20 | ||
21 | class ProgressContext; | |
22 | ||
23 | namespace image_replayer { | |
24 | namespace journal { | |
25 | ||
26 | template <typename> class StateBuilder; | |
27 | ||
28 | template <typename ImageCtxT> | |
29 | class PrepareReplayRequest : public BaseRequest { | |
30 | public: | |
31 | static PrepareReplayRequest* create( | |
32 | const std::string& local_mirror_uuid, | |
9f95a23c TL |
33 | ProgressContext* progress_ctx, |
34 | StateBuilder<ImageCtxT>* state_builder, | |
35 | bool* resync_requested, | |
36 | bool* syncing, | |
37 | Context* on_finish) { | |
38 | return new PrepareReplayRequest( | |
2a845540 TL |
39 | local_mirror_uuid, progress_ctx, state_builder, resync_requested, |
40 | syncing, on_finish); | |
9f95a23c TL |
41 | } |
42 | ||
43 | PrepareReplayRequest( | |
44 | const std::string& local_mirror_uuid, | |
9f95a23c TL |
45 | ProgressContext* progress_ctx, |
46 | StateBuilder<ImageCtxT>* state_builder, | |
47 | bool* resync_requested, | |
48 | bool* syncing, | |
49 | Context* on_finish) | |
50 | : BaseRequest(on_finish), | |
51 | m_local_mirror_uuid(local_mirror_uuid), | |
9f95a23c TL |
52 | m_progress_ctx(progress_ctx), |
53 | m_state_builder(state_builder), | |
54 | m_resync_requested(resync_requested), | |
55 | m_syncing(syncing) { | |
56 | } | |
57 | ||
58 | void send() override; | |
59 | ||
60 | private: | |
61 | /** | |
62 | * @verbatim | |
63 | * | |
64 | * <start> | |
65 | * | | |
66 | * v | |
67 | * UPDATE_CLIENT_STATE | |
68 | * | | |
69 | * v | |
70 | * GET_REMOTE_TAG_CLASS | |
71 | * | | |
72 | * v | |
73 | * GET_REMOTE_TAGS | |
74 | * | | |
75 | * v | |
76 | * <finish> | |
77 | * | |
78 | * @endverbatim | |
79 | */ | |
80 | typedef std::list<cls::journal::Tag> Tags; | |
81 | ||
82 | std::string m_local_mirror_uuid; | |
9f95a23c TL |
83 | ProgressContext* m_progress_ctx; |
84 | StateBuilder<ImageCtxT>* m_state_builder; | |
85 | bool* m_resync_requested; | |
86 | bool* m_syncing; | |
87 | ||
88 | uint64_t m_local_tag_tid = 0; | |
89 | librbd::journal::TagData m_local_tag_data; | |
90 | ||
91 | uint64_t m_remote_tag_class = 0; | |
92 | Tags m_remote_tags; | |
93 | cls::journal::Client m_client; | |
94 | ||
95 | void update_client_state(); | |
96 | void handle_update_client_state(int r); | |
97 | ||
98 | void get_remote_tag_class(); | |
99 | void handle_get_remote_tag_class(int r); | |
100 | ||
101 | void get_remote_tags(); | |
102 | void handle_get_remote_tags(int r); | |
103 | ||
104 | void update_progress(const std::string& description); | |
105 | ||
106 | }; | |
107 | ||
108 | } // namespace journal | |
109 | } // namespace image_replayer | |
110 | } // namespace mirror | |
111 | } // namespace rbd | |
112 | ||
113 | extern template class rbd::mirror::image_replayer::journal::PrepareReplayRequest<librbd::ImageCtx>; | |
114 | ||
115 | #endif // RBD_MIRROR_IMAGE_REPLAYER_JOURNAL_PREPARE_REPLAY_REQUEST_H |