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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | #ifndef CEPH_MEXPORTDIRDISCOVER_H | |
16 | #define CEPH_MEXPORTDIRDISCOVER_H | |
17 | ||
7c673cae | 18 | #include "include/types.h" |
f67539c2 | 19 | #include "messages/MMDSOp.h" |
7c673cae | 20 | |
f67539c2 | 21 | class MExportDirDiscover final : public MMDSOp { |
11fdf7f2 | 22 | private: |
f67539c2 TL |
23 | static constexpr int HEAD_VERSION = 1; |
24 | static constexpr int COMPAT_VERSION = 1; | |
11fdf7f2 | 25 | mds_rank_t from = -1; |
7c673cae FG |
26 | dirfrag_t dirfrag; |
27 | filepath path; | |
28 | ||
29 | public: | |
11fdf7f2 TL |
30 | mds_rank_t get_source_mds() const { return from; } |
31 | inodeno_t get_ino() const { return dirfrag.ino; } | |
32 | dirfrag_t get_dirfrag() const { return dirfrag; } | |
33 | const filepath& get_path() const { return path; } | |
7c673cae FG |
34 | |
35 | bool started; | |
36 | ||
11fdf7f2 | 37 | protected: |
7c673cae | 38 | MExportDirDiscover() : |
f67539c2 | 39 | MMDSOp{MSG_MDS_EXPORTDIRDISCOVER, HEAD_VERSION, COMPAT_VERSION}, |
7c673cae FG |
40 | started(false) { } |
41 | MExportDirDiscover(dirfrag_t df, filepath& p, mds_rank_t f, uint64_t tid) : | |
f67539c2 | 42 | MMDSOp{MSG_MDS_EXPORTDIRDISCOVER, HEAD_VERSION, COMPAT_VERSION}, |
7c673cae FG |
43 | from(f), dirfrag(df), path(p), started(false) { |
44 | set_tid(tid); | |
45 | } | |
f67539c2 | 46 | ~MExportDirDiscover() final {} |
7c673cae FG |
47 | |
48 | public: | |
11fdf7f2 | 49 | std::string_view get_type_name() const override { return "ExDis"; } |
f67539c2 | 50 | void print(std::ostream& o) const override { |
7c673cae FG |
51 | o << "export_discover(" << dirfrag << " " << path << ")"; |
52 | } | |
53 | ||
54 | void decode_payload() override { | |
f67539c2 | 55 | using ceph::decode; |
11fdf7f2 TL |
56 | auto p = payload.cbegin(); |
57 | decode(from, p); | |
58 | decode(dirfrag, p); | |
59 | decode(path, p); | |
7c673cae FG |
60 | } |
61 | ||
62 | void encode_payload(uint64_t features) override { | |
11fdf7f2 TL |
63 | using ceph::encode; |
64 | encode(from, payload); | |
65 | encode(dirfrag, payload); | |
66 | encode(path, payload); | |
7c673cae | 67 | } |
9f95a23c TL |
68 | private: |
69 | template<class T, typename... Args> | |
70 | friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args); | |
20effc67 TL |
71 | template<class T, typename... Args> |
72 | friend MURef<T> crimson::make_message(Args&&... args); | |
7c673cae FG |
73 | }; |
74 | ||
75 | #endif |