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flutter / third_party / perfetto / 819c771428a39ddd25a4cb8b6aef48f7d35ec1c9 / . / src / trace_processor / trace_processor_impl.cc
blob: 296dc994504ea82aa62873a9cbf028470b951bd2 [file] [log] [blame]
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "src/trace_processor/trace_processor_impl.h"
#include <algorithm>
#include <chrono>
#include <cinttypes>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <memory>
#include <optional>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "perfetto/base/build_config.h"
#include "perfetto/base/logging.h"
#include "perfetto/base/status.h"
#include "perfetto/base/thread_utils.h"
#include "perfetto/base/time.h"
#include "perfetto/ext/base/clock_snapshots.h"
#include "perfetto/ext/base/flat_hash_map.h"
#include "perfetto/ext/base/small_vector.h"
#include "perfetto/ext/base/status_or.h"
#include "perfetto/ext/base/string_splitter.h"
#include "perfetto/ext/base/string_utils.h"
#include "perfetto/protozero/scattered_heap_buffer.h"
#include "perfetto/public/compiler.h"
#include "perfetto/trace_processor/basic_types.h"
#include "perfetto/trace_processor/iterator.h"
#include "perfetto/trace_processor/trace_blob_view.h"
#include "perfetto/trace_processor/trace_processor.h"
#include "src/trace_processor/importers/android_bugreport/android_log_event_parser_impl.h"
#include "src/trace_processor/importers/android_bugreport/android_log_reader.h"
#include "src/trace_processor/importers/archive/gzip_trace_parser.h"
#include "src/trace_processor/importers/archive/tar_trace_reader.h"
#include "src/trace_processor/importers/archive/zip_trace_reader.h"
#include "src/trace_processor/importers/art_method/art_method_parser_impl.h"
#include "src/trace_processor/importers/art_method/art_method_tokenizer.h"
#include "src/trace_processor/importers/common/clock_tracker.h"
#include "src/trace_processor/importers/common/trace_file_tracker.h"
#include "src/trace_processor/importers/common/trace_parser.h"
#include "src/trace_processor/importers/fuchsia/fuchsia_trace_parser.h"
#include "src/trace_processor/importers/fuchsia/fuchsia_trace_tokenizer.h"
#include "src/trace_processor/importers/gecko/gecko_trace_parser_impl.h"
#include "src/trace_processor/importers/gecko/gecko_trace_tokenizer.h"
#include "src/trace_processor/importers/json/json_trace_parser_impl.h"
#include "src/trace_processor/importers/json/json_trace_tokenizer.h"
#include "src/trace_processor/importers/json/json_utils.h"
#include "src/trace_processor/importers/ninja/ninja_log_parser.h"
#include "src/trace_processor/importers/perf/perf_data_tokenizer.h"
#include "src/trace_processor/importers/perf/record_parser.h"
#include "src/trace_processor/importers/perf/spe_record_parser.h"
#include "src/trace_processor/importers/perf_text/perf_text_trace_parser_impl.h"
#include "src/trace_processor/importers/perf_text/perf_text_trace_tokenizer.h"
#include "src/trace_processor/importers/proto/additional_modules.h"
#include "src/trace_processor/importers/proto/content_analyzer.h"
#include "src/trace_processor/importers/systrace/systrace_trace_parser.h"
#include "src/trace_processor/iterator_impl.h"
#include "src/trace_processor/metrics/all_chrome_metrics.descriptor.h"
#include "src/trace_processor/metrics/all_webview_metrics.descriptor.h"
#include "src/trace_processor/metrics/metrics.descriptor.h"
#include "src/trace_processor/metrics/metrics.h"
#include "src/trace_processor/metrics/sql/amalgamated_sql_metrics.h"
#include "src/trace_processor/perfetto_sql/engine/perfetto_sql_engine.h"
#include "src/trace_processor/perfetto_sql/engine/table_pointer_module.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/base64.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/clock_functions.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/counter_intervals.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/create_function.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/create_view_function.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/dominator_tree.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/graph_scan.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/graph_traversal.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/import.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/interval_intersect.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/layout_functions.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/math.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/pprof_functions.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/sqlite3_str_split.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/stack_functions.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/structural_tree_partition.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/to_ftrace.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/type_builders.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/utils.h"
#include "src/trace_processor/perfetto_sql/intrinsics/functions/window_functions.h"
#include "src/trace_processor/perfetto_sql/intrinsics/operators/counter_mipmap_operator.h"
#include "src/trace_processor/perfetto_sql/intrinsics/operators/slice_mipmap_operator.h"
#include "src/trace_processor/perfetto_sql/intrinsics/operators/span_join_operator.h"
#include "src/trace_processor/perfetto_sql/intrinsics/operators/window_operator.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/ancestor.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/connected_flow.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/descendant.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/dfs_weight_bounded.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/experimental_annotated_stack.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/experimental_counter_dur.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/experimental_flamegraph.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/experimental_flat_slice.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/experimental_sched_upid.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/experimental_slice_layout.h"
#include "src/trace_processor/perfetto_sql/intrinsics/table_functions/table_info.h"
#include "src/trace_processor/perfetto_sql/stdlib/stdlib.h"
#include "src/trace_processor/sqlite/bindings/sqlite_aggregate_function.h"
#include "src/trace_processor/sqlite/bindings/sqlite_result.h"
#include "src/trace_processor/sqlite/sql_source.h"
#include "src/trace_processor/sqlite/sql_stats_table.h"
#include "src/trace_processor/sqlite/stats_table.h"
#include "src/trace_processor/storage/trace_storage.h"
#include "src/trace_processor/tp_metatrace.h"
#include "src/trace_processor/trace_processor_storage_impl.h"
#include "src/trace_processor/trace_reader_registry.h"
#include "src/trace_processor/types/trace_processor_context.h"
#include "src/trace_processor/util/descriptors.h"
#include "src/trace_processor/util/gzip_utils.h"
#include "src/trace_processor/util/protozero_to_json.h"
#include "src/trace_processor/util/protozero_to_text.h"
#include "src/trace_processor/util/regex.h"
#include "src/trace_processor/util/sql_modules.h"
#include "src/trace_processor/util/status_macros.h"
#include "src/trace_processor/util/trace_type.h"
#if PERFETTO_BUILDFLAG(PERFETTO_TP_INSTRUMENTS)
#include "src/trace_processor/importers/instruments/instruments_xml_tokenizer.h"
#include "src/trace_processor/importers/instruments/row_parser.h"
#endif
#include "protos/perfetto/common/builtin_clock.pbzero.h"
#include "protos/perfetto/trace/clock_snapshot.pbzero.h"
#include "protos/perfetto/trace/perfetto/perfetto_metatrace.pbzero.h"
#include "protos/perfetto/trace/trace.pbzero.h"
#include "protos/perfetto/trace/trace_packet.pbzero.h"
namespace perfetto::trace_processor {
namespace {
template <typename SqlFunction, typename Ptr = typename SqlFunction::Context*>
void RegisterFunction(PerfettoSqlEngine* engine,
const char* name,
int argc,
Ptr context = nullptr,
bool deterministic = true) {
auto status = engine->RegisterStaticFunction<SqlFunction>(
name, argc, std::move(context), deterministic);
if (!status.ok())
PERFETTO_ELOG("%s", status.c_message());
}
base::Status RegisterAllProtoBuilderFunctions(
DescriptorPool* pool,
std::unordered_map<std::string, std::string>* proto_fn_name_to_path,
PerfettoSqlEngine* engine,
TraceProcessor* tp) {
for (uint32_t i = 0; i < pool->descriptors().size(); ++i) {
// Convert the full name (e.g. .perfetto.protos.TraceMetrics.SubMetric)
// into a function name of the form (TraceMetrics_SubMetric).
const auto& desc = pool->descriptors()[i];
auto fn_name = desc.full_name().substr(desc.package_name().size() + 1);
std::replace(fn_name.begin(), fn_name.end(), '.', '_');
auto registered_fn = proto_fn_name_to_path->find(fn_name);
if (registered_fn != proto_fn_name_to_path->end() &&
registered_fn->second != desc.full_name()) {
return base::ErrStatus(
"Attempt to create new metric function '%s' for different descriptor "
"'%s' that conflicts with '%s'",
fn_name.c_str(), desc.full_name().c_str(),
registered_fn->second.c_str());
}
RegisterFunction<metrics::BuildProto>(
engine, fn_name.c_str(), -1,
std::make_unique<metrics::BuildProto::Context>(
metrics::BuildProto::Context{tp, pool, i}));
proto_fn_name_to_path->emplace(fn_name, desc.full_name());
}
return base::OkStatus();
}
void BuildBoundsTable(sqlite3* db, std::pair<int64_t, int64_t> bounds) {
char* error = nullptr;
sqlite3_exec(db, "DELETE FROM trace_bounds", nullptr, nullptr, &error);
if (error) {
PERFETTO_ELOG("Error deleting from bounds table: %s", error);
sqlite3_free(error);
return;
}
base::StackString<1024> sql("INSERT INTO trace_bounds VALUES(%" PRId64
", %" PRId64 ")",
bounds.first, bounds.second);
sqlite3_exec(db, sql.c_str(), nullptr, nullptr, &error);
if (error) {
PERFETTO_ELOG("Error inserting bounds table: %s", error);
sqlite3_free(error);
}
}
class ValueAtMaxTs : public SqliteAggregateFunction<ValueAtMaxTs> {
public:
static constexpr char kName[] = "VALUE_AT_MAX_TS";
static constexpr int kArgCount = 2;
struct Context {
bool initialized;
int value_type;
int64_t max_ts;
int64_t int_value_at_max_ts;
double double_value_at_max_ts;
};
static void Step(sqlite3_context* ctx, int, sqlite3_value** argv) {
sqlite3_value* ts = argv[0];
sqlite3_value* value = argv[1];
// Note that sqlite3_aggregate_context zeros the memory for us so all the
// variables of the struct should be zero.
auto* fn_ctx = reinterpret_cast<Context*>(
sqlite3_aggregate_context(ctx, sizeof(Context)));
// For performance reasons, we only do the check for the type of ts and
// value on the first call of the function.
if (PERFETTO_UNLIKELY(!fn_ctx->initialized)) {
if (sqlite3_value_type(ts) != SQLITE_INTEGER) {
return sqlite::result::Error(
ctx, "VALUE_AT_MAX_TS: ts passed was not an integer");
}
fn_ctx->value_type = sqlite3_value_type(value);
if (fn_ctx->value_type != SQLITE_INTEGER &&
fn_ctx->value_type != SQLITE_FLOAT) {
return sqlite::result::Error(
ctx, "VALUE_AT_MAX_TS: value passed was not an integer or float");
}
fn_ctx->max_ts = std::numeric_limits<int64_t>::min();
fn_ctx->initialized = true;
}
// On dcheck builds however, we check every passed ts and value.
#if PERFETTO_DCHECK_IS_ON()
if (sqlite3_value_type(ts) != SQLITE_INTEGER) {
return sqlite::result::Error(
ctx, "VALUE_AT_MAX_TS: ts passed was not an integer");
}
if (sqlite3_value_type(value) != fn_ctx->value_type) {
return sqlite::result::Error(
ctx, "VALUE_AT_MAX_TS: value type is inconsistent");
}
#endif
int64_t ts_int = sqlite3_value_int64(ts);
if (PERFETTO_LIKELY(fn_ctx->max_ts <= ts_int)) {
fn_ctx->max_ts = ts_int;
if (fn_ctx->value_type == SQLITE_INTEGER) {
fn_ctx->int_value_at_max_ts = sqlite3_value_int64(value);
} else {
fn_ctx->double_value_at_max_ts = sqlite3_value_double(value);
}
}
}
static void Final(sqlite3_context* ctx) {
auto* fn_ctx = static_cast<Context*>(sqlite3_aggregate_context(ctx, 0));
if (!fn_ctx) {
sqlite::result::Null(ctx);
return;
}
if (fn_ctx->value_type == SQLITE_INTEGER) {
sqlite::result::Long(ctx, fn_ctx->int_value_at_max_ts);
} else {
sqlite::result::Double(ctx, fn_ctx->double_value_at_max_ts);
}
}
};
void RegisterValueAtMaxTsFunction(PerfettoSqlEngine& engine) {
base::Status status =
engine.RegisterSqliteAggregateFunction<ValueAtMaxTs>(nullptr);
if (!status.ok()) {
PERFETTO_ELOG("Error initializing VALUE_AT_MAX_TS");
}
}
std::vector<std::string> SanitizeMetricMountPaths(
const std::vector<std::string>& mount_paths) {
std::vector<std::string> sanitized;
for (const auto& path : mount_paths) {
if (path.empty())
continue;
sanitized.push_back(path);
if (path.back() != '/')
sanitized.back().append("/");
}
return sanitized;
}
void InsertIntoTraceMetricsTable(sqlite3* db, const std::string& metric_name) {
char* insert_sql = sqlite3_mprintf(
"INSERT INTO trace_metrics(name) VALUES('%q')", metric_name.c_str());
char* insert_error = nullptr;
sqlite3_exec(db, insert_sql, nullptr, nullptr, &insert_error);
sqlite3_free(insert_sql);
if (insert_error) {
PERFETTO_ELOG("Error registering table: %s", insert_error);
sqlite3_free(insert_error);
}
}
sql_modules::NameToPackage GetStdlibPackages() {
sql_modules::NameToPackage packages;
for (const auto& file_to_sql : stdlib::kFileToSql) {
std::string module_name = sql_modules::GetIncludeKey(file_to_sql.path);
std::string package_name = sql_modules::GetPackageName(module_name);
packages.Insert(package_name, {})
.first->push_back({module_name, file_to_sql.sql});
}
return packages;
}
std::pair<int64_t, int64_t> GetTraceTimestampBoundsNs(
const TraceStorage& storage) {
int64_t start_ns = std::numeric_limits<int64_t>::max();
int64_t end_ns = std::numeric_limits<int64_t>::min();
for (auto it = storage.raw_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
for (auto it = storage.sched_slice_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts() + it.dur(), end_ns);
}
for (auto it = storage.counter_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
for (auto it = storage.slice_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts() + it.dur(), end_ns);
}
for (auto it = storage.heap_profile_allocation_table().IterateRows(); it;
++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
for (auto it = storage.thread_state_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts() + it.dur(), end_ns);
}
for (auto it = storage.android_log_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
for (auto it = storage.heap_graph_object_table().IterateRows(); it; ++it) {
start_ns = std::min(it.graph_sample_ts(), start_ns);
end_ns = std::max(it.graph_sample_ts(), end_ns);
}
for (auto it = storage.perf_sample_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
for (auto it = storage.instruments_sample_table().IterateRows(); it; ++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
for (auto it = storage.cpu_profile_stack_sample_table().IterateRows(); it;
++it) {
start_ns = std::min(it.ts(), start_ns);
end_ns = std::max(it.ts(), end_ns);
}
if (start_ns == std::numeric_limits<int64_t>::max()) {
return std::make_pair(0, 0);
}
if (start_ns == end_ns) {
end_ns += 1;
}
return std::make_pair(start_ns, end_ns);
}
} // namespace
TraceProcessorImpl::TraceProcessorImpl(const Config& cfg)
: TraceProcessorStorageImpl(cfg), config_(cfg) {
context_.reader_registry->RegisterTraceReader<AndroidLogReader>(
kAndroidLogcatTraceType);
context_.android_log_event_parser =
std::make_unique<AndroidLogEventParserImpl>(&context_);
context_.reader_registry->RegisterTraceReader<FuchsiaTraceTokenizer>(
kFuchsiaTraceType);
context_.fuchsia_record_parser =
std::make_unique<FuchsiaTraceParser>(&context_);
context_.reader_registry->RegisterTraceReader<SystraceTraceParser>(
kSystraceTraceType);
context_.reader_registry->RegisterTraceReader<NinjaLogParser>(
kNinjaLogTraceType);
context_.reader_registry
->RegisterTraceReader<perf_importer::PerfDataTokenizer>(
kPerfDataTraceType);
context_.perf_record_parser =
std::make_unique<perf_importer::RecordParser>(&context_);
context_.spe_record_parser =
std::make_unique<perf_importer::SpeRecordParserImpl>(&context_);
#if PERFETTO_BUILDFLAG(PERFETTO_TP_INSTRUMENTS)
context_.reader_registry
->RegisterTraceReader<instruments_importer::InstrumentsXmlTokenizer>(
kInstrumentsXmlTraceType);
context_.instruments_row_parser =
std::make_unique<instruments_importer::RowParser>(&context_);
#endif
if constexpr (util::IsGzipSupported()) {
context_.reader_registry->RegisterTraceReader<GzipTraceParser>(
kGzipTraceType);
context_.reader_registry->RegisterTraceReader<GzipTraceParser>(
kCtraceTraceType);
context_.reader_registry->RegisterTraceReader<ZipTraceReader>(kZipFile);
}
if constexpr (json::IsJsonSupported()) {
context_.reader_registry->RegisterTraceReader<JsonTraceTokenizer>(
kJsonTraceType);
context_.json_trace_parser =
std::make_unique<JsonTraceParserImpl>(&context_);
context_.reader_registry
->RegisterTraceReader<gecko_importer::GeckoTraceTokenizer>(
kGeckoTraceType);
context_.gecko_trace_parser =
std::make_unique<gecko_importer::GeckoTraceParserImpl>(&context_);
}
context_.reader_registry->RegisterTraceReader<art_method::ArtMethodTokenizer>(
kArtMethodTraceType);
context_.art_method_parser =
std::make_unique<art_method::ArtMethodParserImpl>(&context_);
context_.reader_registry
->RegisterTraceReader<perf_text_importer::PerfTextTraceTokenizer>(
kPerfTextTraceType);
context_.perf_text_parser =
std::make_unique<perf_text_importer::PerfTextTraceParserImpl>(&context_);
context_.reader_registry->RegisterTraceReader<TarTraceReader>(kTarTraceType);
if (context_.config.analyze_trace_proto_content) {
context_.content_analyzer =
std::make_unique<ProtoContentAnalyzer>(&context_);
}
// Add metrics to descriptor pool
const std::vector<std::string> sanitized_extension_paths =
SanitizeMetricMountPaths(config_.skip_builtin_metric_paths);
std::vector<std::string> skip_prefixes;
skip_prefixes.reserve(sanitized_extension_paths.size());
for (const auto& path : sanitized_extension_paths) {
skip_prefixes.push_back(kMetricProtoRoot + path);
}
pool_.AddFromFileDescriptorSet(kMetricsDescriptor.data(),
kMetricsDescriptor.size(), skip_prefixes);
pool_.AddFromFileDescriptorSet(kAllChromeMetricsDescriptor.data(),
kAllChromeMetricsDescriptor.size(),
skip_prefixes);
pool_.AddFromFileDescriptorSet(kAllWebviewMetricsDescriptor.data(),
kAllWebviewMetricsDescriptor.size(),
skip_prefixes);
RegisterAdditionalModules(&context_);
InitPerfettoSqlEngine();
sqlite_objects_post_prelude_ = engine_->SqliteRegisteredObjectCount();
bool skip_all_sql = std::find(config_.skip_builtin_metric_paths.begin(),
config_.skip_builtin_metric_paths.end(),
"") != config_.skip_builtin_metric_paths.end();
if (!skip_all_sql) {
for (const auto& file_to_sql : sql_metrics::kFileToSql) {
if (base::StartsWithAny(file_to_sql.path, sanitized_extension_paths))
continue;
RegisterMetric(file_to_sql.path, file_to_sql.sql);
}
}
}
TraceProcessorImpl::~TraceProcessorImpl() = default;
base::Status TraceProcessorImpl::Parse(TraceBlobView blob) {
bytes_parsed_ += blob.size();
return TraceProcessorStorageImpl::Parse(std::move(blob));
}
std::string TraceProcessorImpl::GetCurrentTraceName() {
if (current_trace_name_.empty())
return "";
auto size = " (" + std::to_string(bytes_parsed_ / 1024 / 1024) + " MB)";
return current_trace_name_ + size;
}
void TraceProcessorImpl::SetCurrentTraceName(const std::string& name) {
current_trace_name_ = name;
}
void TraceProcessorImpl::Flush() {
TraceProcessorStorageImpl::Flush();
BuildBoundsTable(engine_->sqlite_engine()->db(),
GetTraceTimestampBoundsNs(*context_.storage));
}
base::Status TraceProcessorImpl::NotifyEndOfFile() {
if (notify_eof_called_) {
const char kMessage[] =
"NotifyEndOfFile should only be called once. Try calling Flush instead "
"if trying to commit the contents of the trace to tables.";
PERFETTO_ELOG(kMessage);
return base::ErrStatus(kMessage);
}
notify_eof_called_ = true;
if (current_trace_name_.empty())
current_trace_name_ = "Unnamed trace";
// Last opportunity to flush all pending data.
Flush();
RETURN_IF_ERROR(TraceProcessorStorageImpl::NotifyEndOfFile());
context_.storage->ShrinkToFitTables();
// Rebuild the bounds table once everything has been completed: we do this
// so that if any data was added to tables in
// TraceProcessorStorageImpl::NotifyEndOfFile, this will be counted in
// trace bounds: this is important for parsers like ninja which wait until
// the end to flush all their data.
BuildBoundsTable(engine_->sqlite_engine()->db(),
GetTraceTimestampBoundsNs(*context_.storage));
TraceProcessorStorageImpl::DestroyContext();
IncludeAfterEofPrelude();
sqlite_objects_post_prelude_ = engine_->SqliteRegisteredObjectCount();
return base::OkStatus();
}
size_t TraceProcessorImpl::RestoreInitialTables() {
// We should always have at least as many objects now as we did in the
// constructor.
uint64_t registered_count_before = engine_->SqliteRegisteredObjectCount();
PERFETTO_CHECK(registered_count_before >= sqlite_objects_post_prelude_);
InitPerfettoSqlEngine();
// The registered count should now be the same as it was in the constructor.
uint64_t registered_count_after = engine_->SqliteRegisteredObjectCount();
PERFETTO_CHECK(registered_count_after == sqlite_objects_post_prelude_);
return static_cast<size_t>(registered_count_before - registered_count_after);
}
Iterator TraceProcessorImpl::ExecuteQuery(const std::string& sql) {
PERFETTO_TP_TRACE(metatrace::Category::API_TIMELINE, "EXECUTE_QUERY",
[&](metatrace::Record* r) { r->AddArg("query", sql); });
uint32_t sql_stats_row =
context_.storage->mutable_sql_stats()->RecordQueryBegin(
sql, base::GetWallTimeNs().count());
std::string non_breaking_sql = base::ReplaceAll(sql, "\u00A0", " ");
base::StatusOr<PerfettoSqlEngine::ExecutionResult> result =
engine_->ExecuteUntilLastStatement(
SqlSource::FromExecuteQuery(std::move(non_breaking_sql)));
std::unique_ptr<IteratorImpl> impl(
new IteratorImpl(this, std::move(result), sql_stats_row));
return Iterator(std::move(impl));
}
void TraceProcessorImpl::InterruptQuery() {
if (!engine_->sqlite_engine()->db())
return;
query_interrupted_.store(true);
sqlite3_interrupt(engine_->sqlite_engine()->db());
}
bool TraceProcessorImpl::IsRootMetricField(const std::string& metric_name) {
std::optional<uint32_t> desc_idx =
pool_.FindDescriptorIdx(".perfetto.protos.TraceMetrics");
if (!desc_idx.has_value())
return false;
const auto* field_idx =
pool_.descriptors()[*desc_idx].FindFieldByName(metric_name);
return field_idx != nullptr;
}
base::Status TraceProcessorImpl::RegisterSqlPackage(SqlPackage sql_package) {
sql_modules::RegisteredPackage new_package;
std::string name = sql_package.name;
if (engine_->FindPackage(name) && !sql_package.allow_override) {
return base::ErrStatus(
"Package '%s' is already registered. Choose a different name.\n"
"If you want to replace the existing package using trace processor "
"shell, you need to pass the --dev flag and use "
"--override-sql-module "
"to pass the module path.",
name.c_str());
}
for (auto const& module_name_and_sql : sql_package.modules) {
if (sql_modules::GetPackageName(module_name_and_sql.first) != name) {
return base::ErrStatus(
"Module name doesn't match the package name. First part of module "
"name should be package name. Import key: '%s', package name: '%s'.",
module_name_and_sql.first.c_str(), name.c_str());
}
new_package.modules.Insert(module_name_and_sql.first,
{module_name_and_sql.second, false});
}
manually_registered_sql_packages_.push_back(SqlPackage(sql_package));
engine_->RegisterPackage(name, std::move(new_package));
return base::OkStatus();
}
base::Status TraceProcessorImpl::RegisterMetric(const std::string& path,
const std::string& sql) {
// Check if the metric with the given path already exists and if it does,
// just update the SQL associated with it.
auto it = std::find_if(
sql_metrics_.begin(), sql_metrics_.end(),
[&path](const metrics::SqlMetricFile& m) { return m.path == path; });
if (it != sql_metrics_.end()) {
it->sql = sql;
return base::OkStatus();
}
auto sep_idx = path.rfind('/');
std::string basename =
sep_idx == std::string::npos ? path : path.substr(sep_idx + 1);
auto sql_idx = basename.rfind(".sql");
if (sql_idx == std::string::npos) {
return base::ErrStatus("Unable to find .sql extension for metric");
}
auto no_ext_name = basename.substr(0, sql_idx);
metrics::SqlMetricFile metric;
metric.path = path;
metric.sql = sql;
if (IsRootMetricField(no_ext_name)) {
metric.proto_field_name = no_ext_name;
metric.output_table_name = no_ext_name + "_output";
auto field_it_and_inserted =
proto_field_to_sql_metric_path_.emplace(*metric.proto_field_name, path);
if (!field_it_and_inserted.second) {
// We already had a metric with this field name in the map. However, if
// this was the case, we should have found the metric in
// |path_to_sql_metric_file_| above if we are simply overriding the
// metric. Return an error since this means we have two different SQL
// files which are trying to output the same metric.
const auto& prev_path = field_it_and_inserted.first->second;
PERFETTO_DCHECK(prev_path != path);
return base::ErrStatus(
"RegisterMetric Error: Metric paths %s (which is already "
"registered) "
"and %s are both trying to output the proto field %s",
prev_path.c_str(), path.c_str(), metric.proto_field_name->c_str());
}
}
if (metric.proto_field_name) {
InsertIntoTraceMetricsTable(engine_->sqlite_engine()->db(),
*metric.proto_field_name);
}
sql_metrics_.emplace_back(metric);
return base::OkStatus();
}
base::Status TraceProcessorImpl::ExtendMetricsProto(const uint8_t* data,
size_t size) {
return ExtendMetricsProto(data, size, /*skip_prefixes*/ {});
}
base::Status TraceProcessorImpl::ExtendMetricsProto(
const uint8_t* data,
size_t size,
const std::vector<std::string>& skip_prefixes) {
RETURN_IF_ERROR(pool_.AddFromFileDescriptorSet(data, size, skip_prefixes));
RETURN_IF_ERROR(RegisterAllProtoBuilderFunctions(
&pool_, &proto_fn_name_to_path_, engine_.get(), this));
return base::OkStatus();
}
base::Status TraceProcessorImpl::ComputeMetric(
const std::vector<std::string>& metric_names,
std::vector<uint8_t>* metrics_proto) {
auto opt_idx = pool_.FindDescriptorIdx(".perfetto.protos.TraceMetrics");
if (!opt_idx.has_value())
return base::Status("Root metrics proto descriptor not found");
const auto& root_descriptor = pool_.descriptors()[opt_idx.value()];
return metrics::ComputeMetrics(engine_.get(), metric_names, sql_metrics_,
pool_, root_descriptor, metrics_proto);
}
base::Status TraceProcessorImpl::ComputeMetricText(
const std::vector<std::string>& metric_names,
TraceProcessor::MetricResultFormat format,
std::string* metrics_string) {
std::vector<uint8_t> metrics_proto;
base::Status status = ComputeMetric(metric_names, &metrics_proto);
if (!status.ok())
return status;
switch (format) {
case TraceProcessor::MetricResultFormat::kProtoText:
*metrics_string = protozero_to_text::ProtozeroToText(
pool_, ".perfetto.protos.TraceMetrics",
protozero::ConstBytes{metrics_proto.data(), metrics_proto.size()},
protozero_to_text::kIncludeNewLines);
break;
case TraceProcessor::MetricResultFormat::kJson:
*metrics_string = protozero_to_json::ProtozeroToJson(
pool_, ".perfetto.protos.TraceMetrics",
protozero::ConstBytes{metrics_proto.data(), metrics_proto.size()},
protozero_to_json::kPretty | protozero_to_json::kInlineErrors |
protozero_to_json::kInlineAnnotations);
break;
}
return status;
}
std::vector<uint8_t> TraceProcessorImpl::GetMetricDescriptors() {
return pool_.SerializeAsDescriptorSet();
}
void TraceProcessorImpl::EnableMetatrace(MetatraceConfig config) {
metatrace::Enable(config);
}
void TraceProcessorImpl::InitPerfettoSqlEngine() {
engine_.reset(new PerfettoSqlEngine(context_.storage->mutable_string_pool(),
config_.enable_extra_checks));
sqlite3* db = engine_->sqlite_engine()->db();
sqlite3_str_split_init(db);
// Register SQL functions only used in local development instances.
if (config_.enable_dev_features) {
RegisterFunction<WriteFile>(engine_.get(), "WRITE_FILE", 2);
}
RegisterFunction<Glob>(engine_.get(), "glob", 2);
RegisterFunction<Hash>(engine_.get(), "HASH", -1);
RegisterFunction<Base64Encode>(engine_.get(), "BASE64_ENCODE", 1);
RegisterFunction<Demangle>(engine_.get(), "DEMANGLE", 1);
RegisterFunction<SourceGeq>(engine_.get(), "SOURCE_GEQ", -1);
RegisterFunction<TablePtrBind>(engine_.get(), "__intrinsic_table_ptr_bind",
-1);
RegisterFunction<ExportJson>(engine_.get(), "EXPORT_JSON", 1,
context_.storage.get(), false);
RegisterFunction<ExtractArg>(engine_.get(), "EXTRACT_ARG", 2,
context_.storage.get());
RegisterFunction<AbsTimeStr>(engine_.get(), "ABS_TIME_STR", 1,
context_.clock_converter.get());
RegisterFunction<Reverse>(engine_.get(), "REVERSE", 1);
RegisterFunction<ToMonotonic>(engine_.get(), "TO_MONOTONIC", 1,
context_.clock_converter.get());
RegisterFunction<ToRealtime>(engine_.get(), "TO_REALTIME", 1,
context_.clock_converter.get());
RegisterFunction<ToTimecode>(engine_.get(), "TO_TIMECODE", 1);
RegisterFunction<CreateFunction>(engine_.get(), "CREATE_FUNCTION", 3,
engine_.get());
RegisterFunction<CreateViewFunction>(engine_.get(), "CREATE_VIEW_FUNCTION", 3,
engine_.get());
RegisterFunction<ExperimentalMemoize>(engine_.get(), "EXPERIMENTAL_MEMOIZE",
1, engine_.get());
RegisterFunction<Import>(
engine_.get(), "IMPORT", 1,
std::make_unique<Import::Context>(Import::Context{engine_.get()}));
RegisterFunction<ToFtrace>(
engine_.get(), "TO_FTRACE", 1,
std::make_unique<ToFtrace::Context>(ToFtrace::Context{
context_.storage.get(), SystraceSerializer(&context_)}));
if constexpr (regex::IsRegexSupported()) {
RegisterFunction<Regex>(engine_.get(), "regexp", 2);
}
// Old style function registration.
// TODO(lalitm): migrate this over to using RegisterFunction once aggregate
// functions are supported.
RegisterValueAtMaxTsFunction(*engine_);
{
base::Status status = RegisterLastNonNullFunction(*engine_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterStackFunctions(engine_.get(), &context_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = PprofFunctions::Register(*engine_, &context_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterLayoutFunctions(*engine_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterMathFunctions(*engine_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterBase64Functions(*engine_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterTypeBuilderFunctions(*engine_);
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterGraphScanFunctions(
*engine_, context_.storage->mutable_string_pool());
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = RegisterGraphTraversalFunctions(
*engine_, *context_.storage->mutable_string_pool());
if (!status.ok())
PERFETTO_FATAL("%s", status.c_message());
}
{
base::Status status = perfetto_sql::RegisterIntervalIntersectFunctions(
*engine_, context_.storage->mutable_string_pool());
}
{
base::Status status = perfetto_sql::RegisterCounterIntervalsFunctions(
*engine_, context_.storage->mutable_string_pool());
}
TraceStorage* storage = context_.storage.get();
// Operator tables.
engine_->sqlite_engine()->RegisterVirtualTableModule<SpanJoinOperatorModule>(
"span_join",
std::make_unique<SpanJoinOperatorModule::Context>(engine_.get()));
engine_->sqlite_engine()->RegisterVirtualTableModule<SpanJoinOperatorModule>(
"span_left_join",
std::make_unique<SpanJoinOperatorModule::Context>(engine_.get()));
engine_->sqlite_engine()->RegisterVirtualTableModule<SpanJoinOperatorModule>(
"span_outer_join",
std::make_unique<SpanJoinOperatorModule::Context>(engine_.get()));
engine_->sqlite_engine()->RegisterVirtualTableModule<WindowOperatorModule>(
"window", std::make_unique<WindowOperatorModule::Context>());
engine_->sqlite_engine()->RegisterVirtualTableModule<CounterMipmapOperator>(
"__intrinsic_counter_mipmap",
std::make_unique<CounterMipmapOperator::Context>(engine_.get()));
engine_->sqlite_engine()->RegisterVirtualTableModule<SliceMipmapOperator>(
"__intrinsic_slice_mipmap",
std::make_unique<SliceMipmapOperator::Context>(engine_.get()));
// Register stdlib packages.
auto packages = GetStdlibPackages();
for (auto package = packages.GetIterator(); package; ++package) {
base::Status status =
RegisterSqlPackage({/*name=*/package.key(), /*modules=*/package.value(),
/*allow_override=*/false});
if (!status.ok())
PERFETTO_ELOG("%s", status.c_message());
}
// Register metrics functions.
{
base::Status status =
engine_->RegisterSqliteAggregateFunction<metrics::RepeatedField>(
nullptr);
if (!status.ok())
PERFETTO_ELOG("%s", status.c_message());
}
RegisterFunction<metrics::NullIfEmpty>(engine_.get(), "NULL_IF_EMPTY", 1);
RegisterFunction<metrics::UnwrapMetricProto>(engine_.get(),
"UNWRAP_METRIC_PROTO", 2);
RegisterFunction<metrics::RunMetric>(
engine_.get(), "RUN_METRIC", -1,
std::make_unique<metrics::RunMetric::Context>(
metrics::RunMetric::Context{engine_.get(), &sql_metrics_}));
// Legacy tables.
engine_->sqlite_engine()->RegisterVirtualTableModule<SqlStatsModule>(
"sqlstats", storage);
engine_->sqlite_engine()->RegisterVirtualTableModule<StatsModule>("stats",
storage);
engine_->sqlite_engine()->RegisterVirtualTableModule<TablePointerModule>(
"__intrinsic_table_ptr", nullptr);
// New style db-backed tables.
// Note: if adding a table here which might potentially contain many rows
// (O(rows in sched/slice/counter)), then consider calling ShrinkToFit on
// that table in TraceStorage::ShrinkToFitTables.
RegisterStaticTable(storage->mutable_machine_table());
RegisterStaticTable(storage->mutable_arg_table());
RegisterStaticTable(storage->mutable_raw_table());
RegisterStaticTable(storage->mutable_ftrace_event_table());
RegisterStaticTable(storage->mutable_thread_table());
RegisterStaticTable(storage->mutable_process_table());
RegisterStaticTable(storage->mutable_filedescriptor_table());
RegisterStaticTable(storage->mutable_trace_file_table());
RegisterStaticTable(storage->mutable_slice_table());
RegisterStaticTable(storage->mutable_flow_table());
RegisterStaticTable(storage->mutable_sched_slice_table());
RegisterStaticTable(storage->mutable_spurious_sched_wakeup_table());
RegisterStaticTable(storage->mutable_thread_state_table());
RegisterStaticTable(storage->mutable_gpu_slice_table());
RegisterStaticTable(storage->mutable_track_table());
RegisterStaticTable(storage->mutable_thread_track_table());
RegisterStaticTable(storage->mutable_process_track_table());
RegisterStaticTable(storage->mutable_cpu_track_table());
RegisterStaticTable(storage->mutable_gpu_track_table());
RegisterStaticTable(storage->mutable_counter_table());
RegisterStaticTable(storage->mutable_counter_track_table());
RegisterStaticTable(storage->mutable_process_counter_track_table());
RegisterStaticTable(storage->mutable_thread_counter_track_table());
RegisterStaticTable(storage->mutable_cpu_counter_track_table());
RegisterStaticTable(storage->mutable_gpu_counter_track_table());
RegisterStaticTable(storage->mutable_gpu_counter_group_table());
RegisterStaticTable(storage->mutable_perf_counter_track_table());
RegisterStaticTable(storage->mutable_heap_graph_object_table());
RegisterStaticTable(storage->mutable_heap_graph_reference_table());
RegisterStaticTable(storage->mutable_heap_graph_class_table());
RegisterStaticTable(storage->mutable_symbol_table());
RegisterStaticTable(storage->mutable_heap_profile_allocation_table());
RegisterStaticTable(storage->mutable_cpu_profile_stack_sample_table());
RegisterStaticTable(storage->mutable_perf_session_table());
RegisterStaticTable(storage->mutable_perf_sample_table());
RegisterStaticTable(storage->mutable_instruments_sample_table());
RegisterStaticTable(storage->mutable_stack_profile_callsite_table());
RegisterStaticTable(storage->mutable_stack_profile_mapping_table());
RegisterStaticTable(storage->mutable_stack_profile_frame_table());
RegisterStaticTable(storage->mutable_package_list_table());
RegisterStaticTable(storage->mutable_profiler_smaps_table());
RegisterStaticTable(storage->mutable_android_log_table());
RegisterStaticTable(storage->mutable_android_dumpstate_table());
RegisterStaticTable(storage->mutable_android_game_intervenion_list_table());
RegisterStaticTable(storage->mutable_android_key_events_table());
RegisterStaticTable(storage->mutable_android_motion_events_table());
RegisterStaticTable(storage->mutable_android_input_event_dispatch_table());
RegisterStaticTable(storage->mutable_vulkan_memory_allocations_table());
RegisterStaticTable(storage->mutable_graphics_frame_slice_table());
RegisterStaticTable(storage->mutable_expected_frame_timeline_slice_table());
RegisterStaticTable(storage->mutable_actual_frame_timeline_slice_table());
RegisterStaticTable(storage->mutable_android_network_packets_table());
RegisterStaticTable(storage->mutable_v8_isolate_table());
RegisterStaticTable(storage->mutable_v8_js_script_table());
RegisterStaticTable(storage->mutable_v8_wasm_script_table());
RegisterStaticTable(storage->mutable_v8_js_function_table());
RegisterStaticTable(storage->mutable_v8_js_code_table());
RegisterStaticTable(storage->mutable_v8_internal_code_table());
RegisterStaticTable(storage->mutable_v8_wasm_code_table());
RegisterStaticTable(storage->mutable_v8_regexp_code_table());
RegisterStaticTable(storage->mutable_jit_code_table());
RegisterStaticTable(storage->mutable_jit_frame_table());
RegisterStaticTable(storage->mutable_spe_record_table());
RegisterStaticTable(storage->mutable_inputmethod_clients_table());
RegisterStaticTable(storage->mutable_inputmethod_manager_service_table());
RegisterStaticTable(storage->mutable_inputmethod_service_table());
RegisterStaticTable(storage->mutable_surfaceflinger_layers_snapshot_table());
RegisterStaticTable(storage->mutable_surfaceflinger_layer_table());
RegisterStaticTable(storage->mutable_surfaceflinger_transactions_table());
RegisterStaticTable(storage->mutable_viewcapture_table());
RegisterStaticTable(storage->mutable_windowmanager_table());
RegisterStaticTable(
storage->mutable_window_manager_shell_transitions_table());
RegisterStaticTable(
storage->mutable_window_manager_shell_transition_handlers_table());
RegisterStaticTable(storage->mutable_protolog_table());
RegisterStaticTable(storage->mutable_metadata_table());
RegisterStaticTable(storage->mutable_cpu_table());
RegisterStaticTable(storage->mutable_cpu_freq_table());
RegisterStaticTable(storage->mutable_clock_snapshot_table());
RegisterStaticTable(storage->mutable_memory_snapshot_table());
RegisterStaticTable(storage->mutable_process_memory_snapshot_table());
RegisterStaticTable(storage->mutable_memory_snapshot_node_table());
RegisterStaticTable(storage->mutable_memory_snapshot_edge_table());
RegisterStaticTable(storage->mutable_experimental_proto_path_table());
RegisterStaticTable(storage->mutable_experimental_proto_content_table());
RegisterStaticTable(
storage->mutable_experimental_missing_chrome_processes_table());
// Tables dynamically generated at query time.
engine_->RegisterStaticTableFunction(
std::make_unique<ExperimentalFlamegraph>(&context_));
engine_->RegisterStaticTableFunction(
std::make_unique<ExperimentalCounterDur>(storage->counter_table()));
engine_->RegisterStaticTableFunction(
std::make_unique<ExperimentalSliceLayout>(
context_.storage->mutable_string_pool(), &storage->slice_table()));
engine_->RegisterStaticTableFunction(std::make_unique<TableInfo>(
context_.storage->mutable_string_pool(), engine_.get()));
engine_->RegisterStaticTableFunction(std::make_unique<Ancestor>(
Ancestor::Type::kSlice, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<Ancestor>(
Ancestor::Type::kStackProfileCallsite, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<Ancestor>(
Ancestor::Type::kSliceByStack, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<Descendant>(
Descendant::Type::kSlice, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<Descendant>(
Descendant::Type::kSliceByStack, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<ConnectedFlow>(
ConnectedFlow::Mode::kDirectlyConnectedFlow, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<ConnectedFlow>(
ConnectedFlow::Mode::kPrecedingFlow, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<ConnectedFlow>(
ConnectedFlow::Mode::kFollowingFlow, context_.storage.get()));
engine_->RegisterStaticTableFunction(std::make_unique<ExperimentalSchedUpid>(
storage->sched_slice_table(), storage->thread_table()));
engine_->RegisterStaticTableFunction(
std::make_unique<ExperimentalAnnotatedStack>(&context_));
engine_->RegisterStaticTableFunction(
std::make_unique<ExperimentalFlatSlice>(&context_));
engine_->RegisterStaticTableFunction(std::make_unique<DfsWeightBounded>(
context_.storage->mutable_string_pool()));
// Value table aggregate functions.
engine_->RegisterSqliteAggregateFunction<DominatorTree>(
context_.storage->mutable_string_pool());
engine_->RegisterSqliteAggregateFunction<StructuralTreePartition>(
context_.storage->mutable_string_pool());
// Metrics.
{
auto status = RegisterAllProtoBuilderFunctions(
&pool_, &proto_fn_name_to_path_, engine_.get(), this);
if (!status.ok()) {
PERFETTO_FATAL("%s", status.c_message());
}
}
// Import prelude package.
IncludeBeforeEofPrelude();
if (notify_eof_called_) {
IncludeAfterEofPrelude();
}
for (const auto& metric : sql_metrics_) {
if (metric.proto_field_name) {
InsertIntoTraceMetricsTable(db, *metric.proto_field_name);
}
}
// Fill trace bounds table.
BuildBoundsTable(db, GetTraceTimestampBoundsNs(*context_.storage));
// Reregister manually added stdlib packages.
for (const auto& package : manually_registered_sql_packages_) {
RegisterSqlPackage(package);
}
}
void TraceProcessorImpl::IncludeBeforeEofPrelude() {
auto result = engine_->Execute(SqlSource::FromTraceProcessorImplementation(
"INCLUDE PERFETTO MODULE prelude.before_eof.*"));
if (!result.status().ok()) {
PERFETTO_FATAL("Failed to import prelude: %s", result.status().c_message());
}
}
void TraceProcessorImpl::IncludeAfterEofPrelude() {
auto result = engine_->Execute(SqlSource::FromTraceProcessorImplementation(
"INCLUDE PERFETTO MODULE prelude.after_eof.*"));
if (!result.status().ok()) {
PERFETTO_FATAL("Failed to import prelude: %s", result.status().c_message());
}
}
namespace {
class StringInterner {
public:
StringInterner(protos::pbzero::PerfettoMetatrace& event,
base::FlatHashMap<std::string, uint64_t>& interned_strings)
: event_(event), interned_strings_(interned_strings) {}
~StringInterner() {
for (const auto& interned_string : new_interned_strings_) {
auto* interned_string_proto = event_.add_interned_strings();
interned_string_proto->set_iid(interned_string.first);
interned_string_proto->set_value(interned_string.second);
}
}
uint64_t InternString(const std::string& str) {
uint64_t new_iid = interned_strings_.size();
auto insert_result = interned_strings_.Insert(str, new_iid);
if (insert_result.second) {
new_interned_strings_.emplace_back(new_iid, str);
}
return *insert_result.first;
}
private:
protos::pbzero::PerfettoMetatrace& event_;
base::FlatHashMap<std::string, uint64_t>& interned_strings_;
base::SmallVector<std::pair<uint64_t, std::string>, 16> new_interned_strings_;
};
} // namespace
base::Status TraceProcessorImpl::DisableAndReadMetatrace(
std::vector<uint8_t>* trace_proto) {
protozero::HeapBuffered<protos::pbzero::Trace> trace;
auto* clock_snapshot = trace->add_packet()->set_clock_snapshot();
for (const auto& [clock_id, ts] : base::CaptureClockSnapshots()) {
auto* clock = clock_snapshot->add_clocks();
clock->set_clock_id(clock_id);
clock->set_timestamp(ts);
}
auto tid = static_cast<uint32_t>(base::GetThreadId());
base::FlatHashMap<std::string, uint64_t> interned_strings;
metatrace::DisableAndReadBuffer(
[&trace, &interned_strings, tid](metatrace::Record* record) {
auto* packet = trace->add_packet();
packet->set_timestamp(record->timestamp_ns);
auto* evt = packet->set_perfetto_metatrace();
StringInterner interner(*evt, interned_strings);
evt->set_event_name_iid(interner.InternString(record->event_name));
evt->set_event_duration_ns(record->duration_ns);
evt->set_thread_id(tid);
if (record->args_buffer_size == 0)
return;
base::StringSplitter s(
record->args_buffer, record->args_buffer_size, '\0',
base::StringSplitter::EmptyTokenMode::ALLOW_EMPTY_TOKENS);
for (; s.Next();) {
auto* arg_proto = evt->add_args();
arg_proto->set_key_iid(interner.InternString(s.cur_token()));
bool has_next = s.Next();
PERFETTO_CHECK(has_next);
arg_proto->set_value_iid(interner.InternString(s.cur_token()));
}
});
*trace_proto = trace.SerializeAsArray();
return base::OkStatus();
}
} // namespace perfetto::trace_processor