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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 | * 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 | ||
16 | #ifndef CEPH_MOSDPGINFO_H | |
17 | #define CEPH_MOSDPGINFO_H | |
18 | ||
19 | #include "msg/Message.h" | |
20 | #include "osd/osd_types.h" | |
21 | ||
9f95a23c | 22 | class MOSDPGInfo : public Message { |
11fdf7f2 | 23 | private: |
9f95a23c | 24 | static constexpr int HEAD_VERSION = 6; |
11fdf7f2 | 25 | static constexpr int COMPAT_VERSION = 5; |
7c673cae | 26 | |
d2e6a577 | 27 | epoch_t epoch = 0; |
7c673cae FG |
28 | |
29 | public: | |
9f95a23c TL |
30 | using pg_list_t = std::vector<pg_notify_t>; |
31 | pg_list_t pg_list; | |
7c673cae FG |
32 | |
33 | epoch_t get_epoch() const { return epoch; } | |
34 | ||
35 | MOSDPGInfo() | |
9f95a23c TL |
36 | : MOSDPGInfo{0, {}} |
37 | {} | |
38 | MOSDPGInfo(epoch_t mv) | |
39 | : MOSDPGInfo(mv, {}) | |
40 | {} | |
41 | MOSDPGInfo(epoch_t mv, pg_list_t&& l) | |
42 | : Message{MSG_OSD_PG_INFO, HEAD_VERSION, COMPAT_VERSION}, | |
43 | epoch{mv}, | |
44 | pg_list{std::move(l)} | |
45 | { | |
7c673cae FG |
46 | set_priority(CEPH_MSG_PRIO_HIGH); |
47 | } | |
48 | private: | |
49 | ~MOSDPGInfo() override {} | |
50 | ||
51 | public: | |
11fdf7f2 | 52 | std::string_view get_type_name() const override { return "pg_info"; } |
7c673cae FG |
53 | void print(ostream& out) const override { |
54 | out << "pg_info("; | |
55 | for (auto i = pg_list.begin(); | |
56 | i != pg_list.end(); | |
57 | ++i) { | |
58 | if (i != pg_list.begin()) | |
59 | out << " "; | |
9f95a23c | 60 | out << *i; |
7c673cae FG |
61 | } |
62 | out << " epoch " << epoch | |
63 | << ")"; | |
64 | } | |
65 | ||
66 | void encode_payload(uint64_t features) override { | |
11fdf7f2 | 67 | using ceph::encode; |
9f95a23c | 68 | header.version = HEAD_VERSION; |
11fdf7f2 | 69 | encode(epoch, payload); |
9f95a23c TL |
70 | if (!HAVE_FEATURE(features, SERVER_OCTOPUS)) { |
71 | // pretend to be vector<pair<pg_notify_t,PastIntervals>> | |
72 | header.version = 5; | |
73 | encode((uint32_t)pg_list.size(), payload); | |
74 | for (auto& i : pg_list) { | |
75 | encode(i, payload); // this embeds a dup (ignored) PastIntervals | |
76 | encode(i.past_intervals, payload); | |
77 | } | |
78 | return; | |
79 | } | |
11fdf7f2 | 80 | encode(pg_list, payload); |
7c673cae FG |
81 | } |
82 | void decode_payload() override { | |
11fdf7f2 TL |
83 | auto p = payload.cbegin(); |
84 | decode(epoch, p); | |
9f95a23c TL |
85 | if (header.version == 5) { |
86 | // decode legacy vector<pair<pg_notify_t,PastIntervals>> | |
87 | uint32_t num; | |
88 | decode(num, p); | |
89 | pg_list.resize(num); | |
90 | for (unsigned i = 0; i < num; ++i) { | |
91 | decode(pg_list[i], p); | |
92 | decode(pg_list[i].past_intervals, p); | |
93 | } | |
94 | return; | |
95 | } | |
11fdf7f2 | 96 | decode(pg_list, p); |
7c673cae | 97 | } |
9f95a23c TL |
98 | private: |
99 | template<class T, typename... Args> | |
100 | friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args); | |
7c673cae FG |
101 | }; |
102 | ||
103 | #endif |