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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
#include "metric_registry.h"
#include <memory>
namespace NMonitoring {
namespace {
void ConsumeLabels(IMetricConsumer* consumer, const ILabels& labels) {
for (auto&& label: labels) {
consumer->OnLabel(label.Name(), label.Value());
}
}
template <typename TLabelsConsumer>
void ConsumeMetric(TInstant time, IMetricConsumer* consumer, IMetric* metric, TLabelsConsumer&& labelsConsumer) {
consumer->OnMetricBegin(metric->Type());
// (1) add labels
consumer->OnLabelsBegin();
labelsConsumer();
consumer->OnLabelsEnd();
// (2) add time and value
metric->Accept(time, consumer);
consumer->OnMetricEnd();
}
}
void WriteLabels(IMetricConsumer* consumer, const ILabels& labels) {
consumer->OnLabelsBegin();
ConsumeLabels(consumer, labels);
consumer->OnLabelsEnd();
}
TMetricRegistry::TMetricRegistry() = default;
TMetricRegistry::~TMetricRegistry() = default;
TMetricRegistry::TMetricRegistry(const TLabels& commonLabels)
: TMetricRegistry{}
{
CommonLabels_ = commonLabels;
}
TMetricRegistry* TMetricRegistry::Instance() {
return Singleton<TMetricRegistry>();
}
TGauge* TMetricRegistry::Gauge(TLabels labels) {
return Metric<TGauge, EMetricType::GAUGE>(std::move(labels));
}
TGauge* TMetricRegistry::Gauge(ILabelsPtr labels) {
return Metric<TGauge, EMetricType::GAUGE>(std::move(labels));
}
TLazyGauge* TMetricRegistry::LazyGauge(TLabels labels, std::function<double()> supplier) {
return Metric<TLazyGauge, EMetricType::GAUGE>(std::move(labels), std::move(supplier));
}
TLazyGauge* TMetricRegistry::LazyGauge(ILabelsPtr labels, std::function<double()> supplier) {
return Metric<TLazyGauge, EMetricType::GAUGE>(std::move(labels), std::move(supplier));
}
TIntGauge* TMetricRegistry::IntGauge(TLabels labels) {
return Metric<TIntGauge, EMetricType::IGAUGE>(std::move(labels));
}
TIntGauge* TMetricRegistry::IntGauge(ILabelsPtr labels) {
return Metric<TIntGauge, EMetricType::IGAUGE>(std::move(labels));
}
TLazyIntGauge* TMetricRegistry::LazyIntGauge(TLabels labels, std::function<i64()> supplier) {
return Metric<TLazyIntGauge, EMetricType::GAUGE>(std::move(labels), std::move(supplier));
}
TLazyIntGauge* TMetricRegistry::LazyIntGauge(ILabelsPtr labels, std::function<i64()> supplier) {
return Metric<TLazyIntGauge, EMetricType::GAUGE>(std::move(labels), std::move(supplier));
}
TCounter* TMetricRegistry::Counter(TLabels labels) {
return Metric<TCounter, EMetricType::COUNTER>(std::move(labels));
}
TCounter* TMetricRegistry::Counter(ILabelsPtr labels) {
return Metric<TCounter, EMetricType::COUNTER>(std::move(labels));
}
TLazyCounter* TMetricRegistry::LazyCounter(TLabels labels, std::function<ui64()> supplier) {
return Metric<TLazyCounter, EMetricType::COUNTER>(std::move(labels), std::move(supplier));
}
TLazyCounter* TMetricRegistry::LazyCounter(ILabelsPtr labels, std::function<ui64()> supplier) {
return Metric<TLazyCounter, EMetricType::COUNTER>(std::move(labels), std::move(supplier));
}
TRate* TMetricRegistry::Rate(TLabels labels) {
return Metric<TRate, EMetricType::RATE>(std::move(labels));
}
TRate* TMetricRegistry::Rate(ILabelsPtr labels) {
return Metric<TRate, EMetricType::RATE>(std::move(labels));
}
TLazyRate* TMetricRegistry::LazyRate(TLabels labels, std::function<ui64()> supplier) {
return Metric<TLazyRate, EMetricType::RATE>(std::move(labels), std::move(supplier));
}
TLazyRate* TMetricRegistry::LazyRate(ILabelsPtr labels, std::function<ui64()> supplier) {
return Metric<TLazyRate, EMetricType::RATE>(std::move(labels), std::move(supplier));
}
THistogram* TMetricRegistry::HistogramCounter(TLabels labels, IHistogramCollectorPtr collector) {
return Metric<THistogram, EMetricType::HIST>(std::move(labels), std::move(collector), false);
}
THistogram* TMetricRegistry::HistogramCounter(ILabelsPtr labels, IHistogramCollectorPtr collector) {
return Metric<THistogram, EMetricType::HIST>(std::move(labels), std::move(collector), false);
}
THistogram* TMetricRegistry::HistogramRate(TLabels labels, IHistogramCollectorPtr collector) {
return Metric<THistogram, EMetricType::HIST_RATE>(std::move(labels), std::move(collector), true);
}
THistogram* TMetricRegistry::HistogramRate(ILabelsPtr labels, IHistogramCollectorPtr collector) {
return Metric<THistogram, EMetricType::HIST_RATE>(std::move(labels), std::move(collector), true);
}
void TMetricRegistry::Reset() {
TWriteGuard g{Lock_};
for (auto& [label, metric] : Metrics_) {
switch (metric->Type()) {
case EMetricType::GAUGE:
static_cast<TGauge*>(metric.Get())->Set(.0);
break;
case EMetricType::IGAUGE:
static_cast<TIntGauge*>(metric.Get())->Set(0);
break;
case EMetricType::COUNTER:
static_cast<TCounter*>(metric.Get())->Reset();
break;
case EMetricType::RATE:
static_cast<TRate*>(metric.Get())->Reset();
break;
case EMetricType::HIST:
case EMetricType::HIST_RATE:
static_cast<THistogram*>(metric.Get())->Reset();
break;
case EMetricType::UNKNOWN:
case EMetricType::DSUMMARY:
case EMetricType::LOGHIST:
break;
}
}
}
void TMetricRegistry::Clear() {
TWriteGuard g{Lock_};
Metrics_.clear();
}
template <typename TMetric, EMetricType type, typename TLabelsType, typename... Args>
TMetric* TMetricRegistry::Metric(TLabelsType&& labels, Args&&... args) {
{
TReadGuard g{Lock_};
auto it = Metrics_.find(labels);
if (it != Metrics_.end()) {
Y_ENSURE(it->second->Type() == type, "cannot create metric " << labels
<< " with type " << MetricTypeToStr(type)
<< ", because registry already has same metric with type " << MetricTypeToStr(it->second->Type()));
return static_cast<TMetric*>(it->second.Get());
}
}
{
IMetricPtr metric = MakeHolder<TMetric>(std::forward<Args>(args)...);
TWriteGuard g{Lock_};
// decltype(Metrics_)::iterator breaks build on windows
THashMap<ILabelsPtr, IMetricPtr>::iterator it;
if constexpr (!std::is_convertible_v<TLabelsType, ILabelsPtr>) {
it = Metrics_.emplace(new TLabels{std::forward<TLabelsType>(labels)}, std::move(metric)).first;
} else {
it = Metrics_.emplace(std::forward<TLabelsType>(labels), std::move(metric)).first;
}
return static_cast<TMetric*>(it->second.Get());
}
}
void TMetricRegistry::RemoveMetric(const ILabels& labels) noexcept {
TWriteGuard g{Lock_};
Metrics_.erase(labels);
}
void TMetricRegistry::Accept(TInstant time, IMetricConsumer* consumer) const {
consumer->OnStreamBegin();
if (!CommonLabels_.Empty()) {
consumer->OnLabelsBegin();
ConsumeLabels(consumer, CommonLabels_);
consumer->OnLabelsEnd();
}
{
TReadGuard g{Lock_};
for (const auto& it: Metrics_) {
ILabels* labels = it.first.Get();
IMetric* metric = it.second.Get();
ConsumeMetric(time, consumer, metric, [&]() {
ConsumeLabels(consumer, *labels);
});
}
}
consumer->OnStreamEnd();
}
void TMetricRegistry::Append(TInstant time, IMetricConsumer* consumer) const {
TReadGuard g{Lock_};
for (const auto& it: Metrics_) {
ILabels* labels = it.first.Get();
IMetric* metric = it.second.Get();
ConsumeMetric(time, consumer, metric, [&]() {
ConsumeLabels(consumer, CommonLabels_);
ConsumeLabels(consumer, *labels);
});
}
}
}
|
