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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_MOSDREPOP_H | |
17 | #define CEPH_MOSDREPOP_H | |
18 | ||
19 | #include "MOSDFastDispatchOp.h" | |
20 | ||
21 | /* | |
22 | * OSD sub op - for internal ops on pobjects between primary and replicas(/stripes/whatever) | |
23 | */ | |
24 | ||
f67539c2 | 25 | class MOSDRepOp final : public MOSDFastDispatchOp { |
11fdf7f2 | 26 | private: |
9f95a23c | 27 | static constexpr int HEAD_VERSION = 3; |
11fdf7f2 | 28 | static constexpr int COMPAT_VERSION = 1; |
7c673cae FG |
29 | |
30 | public: | |
31 | epoch_t map_epoch, min_epoch; | |
32 | ||
33 | // metadata from original request | |
34 | osd_reqid_t reqid; | |
35 | ||
36 | spg_t pgid; | |
37 | ||
9f95a23c | 38 | ceph::buffer::list::const_iterator p; |
11fdf7f2 | 39 | // Decoding flags. Decoding is only needed for messages caught by pipe reader. |
7c673cae FG |
40 | bool final_decode_needed; |
41 | ||
42 | // subop | |
43 | pg_shard_t from; | |
44 | hobject_t poid; | |
45 | ||
46 | __u8 acks_wanted; | |
47 | ||
48 | // transaction to exec | |
9f95a23c | 49 | ceph::buffer::list logbl; |
7c673cae FG |
50 | pg_stat_t pg_stats; |
51 | ||
52 | // subop metadata | |
53 | eversion_t version; | |
54 | ||
55 | // piggybacked osd/og state | |
56 | eversion_t pg_trim_to; // primary->replica: trim to here | |
9f95a23c | 57 | eversion_t min_last_complete_ondisk; // lower bound on committed version |
7c673cae FG |
58 | |
59 | hobject_t new_temp_oid; ///< new temp object that we must now start tracking | |
60 | hobject_t discard_temp_oid; ///< previously used temp object that we can now stop tracking | |
61 | ||
62 | /// non-empty if this transaction involves a hit_set history update | |
9f95a23c | 63 | std::optional<pg_hit_set_history_t> updated_hit_set_history; |
7c673cae FG |
64 | |
65 | epoch_t get_map_epoch() const override { | |
66 | return map_epoch; | |
67 | } | |
68 | epoch_t get_min_epoch() const override { | |
69 | return min_epoch; | |
70 | } | |
71 | spg_t get_spg() const override { | |
72 | return pgid; | |
73 | } | |
74 | ||
75 | int get_cost() const override { | |
76 | return data.length(); | |
77 | } | |
78 | ||
79 | void decode_payload() override { | |
9f95a23c | 80 | using ceph::decode; |
11fdf7f2 TL |
81 | p = payload.cbegin(); |
82 | // split to partial and final | |
83 | decode(map_epoch, p); | |
7c673cae | 84 | if (header.version >= 2) { |
11fdf7f2 | 85 | decode(min_epoch, p); |
7c673cae FG |
86 | decode_trace(p); |
87 | } else { | |
88 | min_epoch = map_epoch; | |
89 | } | |
11fdf7f2 TL |
90 | decode(reqid, p); |
91 | decode(pgid, p); | |
7c673cae FG |
92 | } |
93 | ||
94 | void finish_decode() { | |
9f95a23c | 95 | using ceph::decode; |
7c673cae FG |
96 | if (!final_decode_needed) |
97 | return; // Message is already final decoded | |
11fdf7f2 | 98 | decode(poid, p); |
7c673cae | 99 | |
11fdf7f2 TL |
100 | decode(acks_wanted, p); |
101 | decode(version, p); | |
102 | decode(logbl, p); | |
103 | decode(pg_stats, p); | |
104 | decode(pg_trim_to, p); | |
7c673cae FG |
105 | |
106 | ||
11fdf7f2 TL |
107 | decode(new_temp_oid, p); |
108 | decode(discard_temp_oid, p); | |
7c673cae | 109 | |
11fdf7f2 TL |
110 | decode(from, p); |
111 | decode(updated_hit_set_history, p); | |
9f95a23c TL |
112 | |
113 | if (header.version >= 3) { | |
114 | decode(min_last_complete_ondisk, p); | |
115 | } else { | |
116 | /* This field used to mean pg_roll_foward_to, but ReplicatedBackend | |
117 | * simply assumes that we're rolling foward to version. */ | |
118 | eversion_t pg_roll_forward_to; | |
119 | decode(pg_roll_forward_to, p); | |
120 | } | |
7c673cae FG |
121 | final_decode_needed = false; |
122 | } | |
123 | ||
124 | void encode_payload(uint64_t features) override { | |
11fdf7f2 TL |
125 | using ceph::encode; |
126 | encode(map_epoch, payload); | |
7c673cae | 127 | if (HAVE_FEATURE(features, SERVER_LUMINOUS)) { |
c07f9fc5 | 128 | header.version = HEAD_VERSION; |
11fdf7f2 | 129 | encode(min_epoch, payload); |
7c673cae FG |
130 | encode_trace(payload, features); |
131 | } else { | |
132 | header.version = 1; | |
133 | } | |
11fdf7f2 TL |
134 | encode(reqid, payload); |
135 | encode(pgid, payload); | |
136 | encode(poid, payload); | |
137 | ||
138 | encode(acks_wanted, payload); | |
139 | encode(version, payload); | |
140 | encode(logbl, payload); | |
141 | encode(pg_stats, payload); | |
142 | encode(pg_trim_to, payload); | |
143 | encode(new_temp_oid, payload); | |
144 | encode(discard_temp_oid, payload); | |
145 | encode(from, payload); | |
146 | encode(updated_hit_set_history, payload); | |
9f95a23c | 147 | encode(min_last_complete_ondisk, payload); |
7c673cae FG |
148 | } |
149 | ||
150 | MOSDRepOp() | |
9f95a23c | 151 | : MOSDFastDispatchOp{MSG_OSD_REPOP, HEAD_VERSION, COMPAT_VERSION}, |
7c673cae FG |
152 | map_epoch(0), |
153 | final_decode_needed(true), acks_wanted (0) {} | |
154 | MOSDRepOp(osd_reqid_t r, pg_shard_t from, | |
155 | spg_t p, const hobject_t& po, int aw, | |
156 | epoch_t mape, epoch_t min_epoch, ceph_tid_t rtid, eversion_t v) | |
9f95a23c | 157 | : MOSDFastDispatchOp{MSG_OSD_REPOP, HEAD_VERSION, COMPAT_VERSION}, |
7c673cae FG |
158 | map_epoch(mape), |
159 | min_epoch(min_epoch), | |
160 | reqid(r), | |
161 | pgid(p), | |
162 | final_decode_needed(false), | |
163 | from(from), | |
164 | poid(po), | |
165 | acks_wanted(aw), | |
166 | version(v) { | |
167 | set_tid(rtid); | |
168 | } | |
9f95a23c TL |
169 | |
170 | void set_rollback_to(const eversion_t &rollback_to) { | |
171 | header.version = 2; | |
172 | min_last_complete_ondisk = rollback_to; | |
173 | } | |
7c673cae | 174 | private: |
f67539c2 | 175 | ~MOSDRepOp() final {} |
7c673cae FG |
176 | |
177 | public: | |
11fdf7f2 | 178 | std::string_view get_type_name() const override { return "osd_repop"; } |
9f95a23c | 179 | void print(std::ostream& out) const override { |
7c673cae FG |
180 | out << "osd_repop(" << reqid |
181 | << " " << pgid << " e" << map_epoch << "/" << min_epoch; | |
182 | if (!final_decode_needed) { | |
183 | out << " " << poid << " v " << version; | |
184 | if (updated_hit_set_history) | |
185 | out << ", has_updated_hit_set_history"; | |
9f95a23c TL |
186 | if (header.version < 3) { |
187 | out << ", rollback_to(legacy)=" << min_last_complete_ondisk; | |
188 | } else { | |
189 | out << ", mlcod=" << min_last_complete_ondisk; | |
190 | } | |
7c673cae FG |
191 | } |
192 | out << ")"; | |
193 | } | |
9f95a23c TL |
194 | private: |
195 | template<class T, typename... Args> | |
196 | friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args); | |
7c673cae FG |
197 | }; |
198 | ||
7c673cae | 199 | #endif |