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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 CEPH_LIBRBD_DEEP_COPY_METADATA_COPY_REQUEST_H | |
5 | #define CEPH_LIBRBD_DEEP_COPY_METADATA_COPY_REQUEST_H | |
6 | ||
7 | #include "include/int_types.h" | |
8 | #include "include/buffer.h" | |
9 | #include "include/rados/librados.hpp" | |
10 | #include "librbd/ImageCtx.h" | |
11 | #include <map> | |
12 | #include <string> | |
13 | ||
14 | class Context; | |
15 | ||
16 | namespace librbd { | |
17 | namespace deep_copy { | |
18 | ||
19 | template <typename ImageCtxT = librbd::ImageCtx> | |
20 | class MetadataCopyRequest { | |
21 | public: | |
22 | static MetadataCopyRequest* create(ImageCtxT *src_image_ctx, | |
23 | ImageCtxT *dst_image_ctx, | |
24 | Context *on_finish) { | |
25 | return new MetadataCopyRequest(src_image_ctx, dst_image_ctx, on_finish); | |
26 | } | |
27 | ||
28 | MetadataCopyRequest(ImageCtxT *src_image_ctx, ImageCtxT *dst_image_ctx, | |
29 | Context *on_finish); | |
30 | ||
31 | void send(); | |
32 | ||
33 | private: | |
34 | /** | |
35 | * @verbatim | |
36 | * | |
37 | * <start> | |
38 | * | | |
39 | * v | |
40 | * LIST_SRC_METADATA <------\ | |
41 | * | | (repeat if additional | |
42 | * v | metadata) | |
43 | * SET_DST_METADATA --------/ | |
44 | * | | |
45 | * v | |
46 | * <finish> | |
47 | * | |
48 | * @endverbatim | |
49 | */ | |
50 | typedef std::map<std::string, bufferlist> Metadata; | |
51 | ||
52 | ImageCtxT *m_src_image_ctx; | |
53 | ImageCtxT *m_dst_image_ctx; | |
54 | Context *m_on_finish; | |
55 | ||
56 | CephContext *m_cct; | |
57 | bufferlist m_out_bl; | |
58 | ||
9f95a23c | 59 | std::map<std::string, bufferlist> m_metadata; |
11fdf7f2 TL |
60 | std::string m_last_metadata_key; |
61 | bool m_more_metadata = false; | |
62 | ||
63 | void list_src_metadata(); | |
64 | void handle_list_src_metadata(int r); | |
65 | ||
9f95a23c | 66 | void set_dst_metadata(); |
11fdf7f2 TL |
67 | void handle_set_dst_metadata(int r); |
68 | ||
69 | void finish(int r); | |
70 | ||
71 | }; | |
72 | ||
73 | } // namespace deep_copy | |
74 | } // namespace librbd | |
75 | ||
76 | extern template class librbd::deep_copy::MetadataCopyRequest<librbd::ImageCtx>; | |
77 | ||
78 | #endif // CEPH_LIBRBD_DEEP_COPY_METADATA_COPY_REQUEST_H |