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
|
#pragma once
#include <library/cpp/actors/wilson/protos/trace.pb.h>
#include <util/generic/hash.h>
#include <util/datetime/cputimer.h>
#include "wilson_trace.h"
namespace NWilson {
enum class ERelation {
FollowsFrom,
ChildOf,
};
namespace NTraceProto = opentelemetry::proto::trace::v1;
namespace NCommonProto = opentelemetry::proto::common::v1;
struct TArrayValue;
struct TKeyValueList;
struct TBytes;
using TAttributeValue = std::variant<
TString,
bool,
i64,
double,
TArrayValue,
TKeyValueList,
TBytes
>;
struct TArrayValue : std::vector<TAttributeValue> {};
struct TKeyValueList : THashMap<TString, TAttributeValue> {};
struct TBytes : TString {};
void SerializeKeyValue(TString key, TAttributeValue value, NCommonProto::KeyValue *pb);
class TSpan {
struct TData {
const TInstant StartTime;
const ui64 StartCycles;
const TTraceId TraceId;
NTraceProto::Span Span;
TData(TInstant startTime, ui64 startCycles, TTraceId traceId)
: StartTime(startTime)
, StartCycles(startCycles)
, TraceId(std::move(traceId))
{}
};
std::unique_ptr<TData> Data;
public:
TSpan() = default;
TSpan(const TSpan&) = delete;
TSpan(TSpan&&) = default;
TSpan(ui8 verbosity, ERelation /*relation*/, TTraceId parentId, TInstant now, std::optional<TString> name)
: Data(parentId ? std::make_unique<TData>(now, GetCycleCount(), parentId.Span(verbosity)) : nullptr)
{
if (*this) {
if (!parentId.IsRoot()) {
Data->Span.set_parent_span_id(parentId.GetSpanIdPtr(), parentId.GetSpanIdSize());
}
Data->Span.set_start_time_unix_nano(now.NanoSeconds());
if (name) {
Name(std::move(*name));
}
}
}
TSpan& operator =(const TSpan&) = delete;
TSpan& operator =(TSpan&&) = default;
operator bool() const {
return static_cast<bool>(Data);
}
TSpan& Name(TString name) {
if (*this) {
Data->Span.set_name(std::move(name));
}
return *this;
}
TSpan& Attribute(TString name, TAttributeValue value) {
if (*this) {
SerializeKeyValue(std::move(name), std::move(value), Data->Span.add_attributes());
}
return *this;
}
TSpan& Event(TString name, TKeyValueList attributes) {
if (*this) {
auto *event = Data->Span.add_events();
event->set_time_unix_nano(TimeUnixNano());
event->set_name(std::move(name));
for (auto&& [key, value] : attributes) {
SerializeKeyValue(std::move(key), std::move(value), event->add_attributes());
}
}
return *this;
}
TSpan& Link(const TTraceId& traceId, TKeyValueList attributes) {
if (*this) {
auto *link = Data->Span.add_links();
link->set_trace_id(traceId.GetTraceIdPtr(), traceId.GetTraceIdSize());
link->set_span_id(traceId.GetSpanIdPtr(), traceId.GetSpanIdSize());
for (auto&& [key, value] : attributes) {
SerializeKeyValue(std::move(key), std::move(value), link->add_attributes());
}
}
return *this;
}
void EndOk() {
if (*this) {
auto *status = Data->Span.mutable_status();
status->set_code(NTraceProto::Status::STATUS_CODE_OK);
}
End();
}
void EndError(TString error) {
if (*this) {
auto *status = Data->Span.mutable_status();
status->set_code(NTraceProto::Status::STATUS_CODE_ERROR);
status->set_message(std::move(error));
}
End();
}
void End() {
if (*this) {
Data->Span.set_end_time_unix_nano(TimeUnixNano());
Data->Span.set_trace_id(Data->TraceId.GetTraceIdPtr(), Data->TraceId.GetTraceIdSize());
Data->Span.set_span_id(Data->TraceId.GetSpanIdPtr(), Data->TraceId.GetSpanIdSize());
Send();
Data.reset(); // tracing finished
}
}
operator TTraceId() const {
return Data ? TTraceId(Data->TraceId) : TTraceId();
}
private:
void Send();
ui64 TimeUnixNano() const {
const TInstant now = Data->StartTime + CyclesToDuration(GetCycleCount() - Data->StartCycles);
return now.NanoSeconds();
}
};
} // NWilson
|
