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
|
// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/actor/aggregated_journal_serializer.h"
#include "base/containers/span.h"
#include "third_party/perfetto/include/perfetto/ext/tracing/core/trace_packet.h"
#include "third_party/perfetto/include/perfetto/protozero/scattered_heap_buffer.h"
#include "third_party/perfetto/protos/perfetto/common/builtin_clock.pbzero.h"
#include "third_party/perfetto/protos/perfetto/config/data_source_config.pbzero.h"
#include "third_party/perfetto/protos/perfetto/config/trace_config.pbzero.h"
#include "third_party/perfetto/protos/perfetto/config/track_event/track_event_config.gen.h"
#include "third_party/perfetto/protos/perfetto/trace/clock_snapshot.pbzero.h"
#include "third_party/perfetto/protos/perfetto/trace/perfetto/tracing_service_event.pbzero.h"
#include "third_party/perfetto/protos/perfetto/trace/trace_packet.pbzero.h"
#include "third_party/perfetto/protos/perfetto/trace/track_event/debug_annotation.pbzero.h"
#include "third_party/perfetto/protos/perfetto/trace/track_event/screenshot.pbzero.h"
#include "third_party/perfetto/protos/perfetto/trace/track_event/track_event.pbzero.h"
namespace actor {
namespace {
uint64_t NowInNanoseconds() {
return (base::Time::Now() - base::Time::UnixEpoch()).InNanoseconds();
}
} // namespace
AggregatedJournalSerializer::AggregatedJournalSerializer(
AggregatedJournal& journal)
: journal_(journal.GetSafeRef()) {}
void AggregatedJournalSerializer::InitImpl() {
// Write initial message in protobuf.
{
protozero::HeapBuffered<perfetto::protos::pbzero::TracePacket> init_msg;
init_msg->set_trusted_packet_sequence_id(sequence_id_++);
auto* clock_snapshot = init_msg->set_clock_snapshot();
clock_snapshot->set_primary_trace_clock(
perfetto::protos::pbzero::BUILTIN_CLOCK_REALTIME);
auto* clock = clock_snapshot->add_clocks();
clock->set_clock_id(perfetto::protos::pbzero::BUILTIN_CLOCK_REALTIME);
clock->set_timestamp(NowInNanoseconds());
auto* trace_config = init_msg->set_trace_config();
auto* data_source = trace_config->add_data_sources();
auto* source_config = data_source->set_config();
source_config->set_name("track_event");
source_config->set_target_buffer(0);
perfetto::protos::gen::TrackEventConfig track_event_config;
track_event_config.add_enabled_categories("*");
source_config->set_track_event_config_raw(
track_event_config.SerializeAsString());
WriteTracePacket(init_msg.SerializeAsArray());
}
// Write tracing started.
{
protozero::HeapBuffered<perfetto::protos::pbzero::TracePacket> msg;
msg->set_trusted_packet_sequence_id(sequence_id_++);
msg->set_timestamp(NowInNanoseconds());
msg->set_timestamp_clock_id(
perfetto::protos::pbzero::BUILTIN_CLOCK_REALTIME);
auto* service_event = msg->set_service_event();
service_event->set_tracing_started(true);
WriteTracePacket(msg.SerializeAsArray());
}
// Write tracting active.
{
protozero::HeapBuffered<perfetto::protos::pbzero::TracePacket> msg;
msg->set_trusted_packet_sequence_id(sequence_id_++);
msg->set_timestamp(NowInNanoseconds());
msg->set_timestamp_clock_id(
perfetto::protos::pbzero::BUILTIN_CLOCK_REALTIME);
auto* service_event = msg->set_service_event();
service_event->set_all_data_sources_started(true);
WriteTracePacket(msg.SerializeAsArray());
}
journal_->AddObserver(this);
}
AggregatedJournalSerializer::~AggregatedJournalSerializer() {
journal_->RemoveObserver(this);
}
void AggregatedJournalSerializer::WillAddJournalEntry(
const AggregatedJournal::Entry& entry) {
protozero::HeapBuffered<perfetto::protos::pbzero::TracePacket> msg;
msg->set_trusted_packet_sequence_id(sequence_id_++);
msg->set_timestamp(
(entry.data->timestamp - base::Time::UnixEpoch()).InNanoseconds());
msg->set_timestamp_clock_id(perfetto::protos::pbzero::BUILTIN_CLOCK_REALTIME);
auto* track_event = msg->set_track_event();
perfetto::protos::pbzero::TrackEvent_Type pb_type =
perfetto::protos::pbzero::TrackEvent::TYPE_UNSPECIFIED;
switch (entry.data->type) {
case mojom::JournalEntryType::kBegin:
pb_type = perfetto::protos::pbzero::TrackEvent::TYPE_SLICE_BEGIN;
break;
case mojom::JournalEntryType::kEnd:
pb_type = perfetto::protos::pbzero::TrackEvent::TYPE_SLICE_END;
break;
case mojom::JournalEntryType::kInstant:
pb_type = perfetto::protos::pbzero::TrackEvent::TYPE_INSTANT;
break;
}
track_event->set_type(pb_type);
track_event->set_name(entry.data->event);
// TODO(dtapuska): We likely want to set the track UUID to be the task.
// track_event->set_track_uuid(entry.data->task_id);
// For Perfetto to read screenshots we need to have the category as
// "android_screenshot". See
// https://github.com/google/perfetto/blob/891351c7233523c01dc0e58ac8650df47fad9ab5/src/trace_processor/perfetto_sql/stdlib/android/screenshots.sql#L37
track_event->add_categories(
entry.jpg_screenshot.has_value() ? "android_screenshot" : "actor");
auto* annotation = track_event->add_debug_annotations();
if (!entry.data->details.empty()) {
annotation->set_name(
pb_type == perfetto::protos::pbzero::TrackEvent::TYPE_SLICE_BEGIN
? "begin_details"
: "details");
annotation->set_string_value(entry.data->details);
}
if (entry.jpg_screenshot.has_value()) {
auto* screenshot = track_event->set_screenshot();
screenshot->set_jpg_image(entry.jpg_screenshot->data(),
entry.jpg_screenshot->size());
}
WriteTracePacket(msg.SerializeAsArray());
}
} // namespace actor
|
