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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/tracing/perfetto_platform.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/trace_event/trace_event.h"
#include "base/tracing/perfetto_task_runner.h"
#include "base/tracing_buildflags.h"
#include "build/build_config.h"
#if BUILDFLAG(IS_ANDROID)
#include "base/android/apk_info.h"
#endif // BUILDFLAG(IS_ANDROID)
#if !BUILDFLAG(IS_NACL)
#include "third_party/perfetto/include/perfetto/ext/base/thread_task_runner.h"
#endif
namespace base::tracing {
PerfettoPlatform::PerfettoPlatform(
scoped_refptr<base::SequencedTaskRunner> task_runner,
Options options)
: process_name_prefix_(std::move(options.process_name_prefix)),
defer_delayed_tasks_(options.defer_delayed_tasks),
task_runner_(std::move(task_runner)),
thread_local_object_([](void* object) {
delete static_cast<ThreadLocalObject*>(object);
}) {}
PerfettoPlatform::~PerfettoPlatform() = default;
PerfettoPlatform::ThreadLocalObject*
PerfettoPlatform::GetOrCreateThreadLocalObject() {
auto* object = static_cast<ThreadLocalObject*>(thread_local_object_.Get());
if (!object) {
object = ThreadLocalObject::CreateInstance().release();
thread_local_object_.Set(object);
}
return object;
}
std::unique_ptr<perfetto::base::TaskRunner> PerfettoPlatform::CreateTaskRunner(
const CreateTaskRunnerArgs&) {
// TODO(b/242965112): Add support for the builtin task runner
DCHECK(!perfetto_task_runner_);
auto perfetto_task_runner =
std::make_unique<PerfettoTaskRunner>(task_runner_, defer_delayed_tasks_);
perfetto_task_runner_ = perfetto_task_runner->GetWeakPtr();
return perfetto_task_runner;
}
void PerfettoPlatform::ResetTaskRunner(
scoped_refptr<base::SequencedTaskRunner> task_runner) {
task_runner_ = task_runner;
if (perfetto_task_runner_) {
perfetto_task_runner_->ResetTaskRunner(task_runner);
}
}
// This method is used by the SDK to determine the producer name.
// Note that we override the producer name for the mojo backend in ProducerHost,
// and thus this only affects the producer name for the system backend.
std::string PerfettoPlatform::GetCurrentProcessName() {
#if BUILDFLAG(IS_ANDROID)
const std::string& host_package_name = android::apk_info::host_package_name();
#else
std::string host_package_name;
#endif // BUILDFLAG(IS_ANDROID)
// On Android we want to include if this is webview inside of an app or
// Android Chrome. To aid this we add the host_package_name to differentiate
// the various apps and sources.
std::string process_name;
if (!host_package_name.empty()) {
process_name = StrCat(
{process_name_prefix_, host_package_name, "-",
NumberToString(trace_event::TraceLog::GetInstance()->process_id())});
} else {
process_name = StrCat(
{process_name_prefix_,
NumberToString(trace_event::TraceLog::GetInstance()->process_id())});
}
return process_name;
}
perfetto::base::PlatformThreadId PerfettoPlatform::GetCurrentThreadId() {
return base::strict_cast<perfetto::base::PlatformThreadId>(
base::PlatformThread::CurrentId().raw());
}
} // namespace base::tracing
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