1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/multi_key_path_tracker.h"
#include "mongo/util/assert_util.h"
namespace mongo {
const OperationContext::Decoration<MultikeyPathTracker> MultikeyPathTracker::get =
OperationContext::declareDecoration<MultikeyPathTracker>();
void MultikeyPathTracker::mergeMultikeyPaths(MultikeyPaths* toMergeInto,
const MultikeyPaths& newPaths) {
invariant(toMergeInto->size() == newPaths.size());
for (auto idx = std::size_t(0); idx < toMergeInto->size(); ++idx) {
toMergeInto->at(idx).insert(newPaths[idx].begin(), newPaths[idx].end());
}
}
void MultikeyPathTracker::addMultikeyPathInfo(MultikeyPathInfo info) {
invariant(_trackMultikeyPathInfo);
// Merge the `MultikeyPathInfo` input into the accumulated value being tracked for the
// (collection, index) key.
for (auto& existingChanges : _multikeyPathInfo) {
if (existingChanges.nss != info.nss || existingChanges.indexName != info.indexName) {
continue;
}
mergeMultikeyPaths(&existingChanges.multikeyPaths, info.multikeyPaths);
return;
}
// If an existing entry wasn't found for the (collection, index) input, create a new entry.
_multikeyPathInfo.emplace_back(info);
}
const WorkerMultikeyPathInfo& MultikeyPathTracker::getMultikeyPathInfo() const {
return _multikeyPathInfo;
}
const boost::optional<MultikeyPaths> MultikeyPathTracker::getMultikeyPathInfo(
const NamespaceString& nss, const std::string& indexName) {
for (const auto& multikeyPathInfo : _multikeyPathInfo) {
if (multikeyPathInfo.nss == nss && multikeyPathInfo.indexName == indexName) {
return multikeyPathInfo.multikeyPaths;
}
}
return boost::none;
}
void MultikeyPathTracker::startTrackingMultikeyPathInfo() {
_trackMultikeyPathInfo = true;
}
void MultikeyPathTracker::stopTrackingMultikeyPathInfo() {
_trackMultikeyPathInfo = false;
}
bool MultikeyPathTracker::isTrackingMultikeyPathInfo() const {
return _trackMultikeyPathInfo;
}
} // namespace mongo
|
