startup_tracing_controller.cc | Explore in Territory

// 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 "content/browser/tracing/startup_tracing_controller.h"

#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "base/files/file.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/no_destructor.h"
#include "base/run_loop.h"
#include "base/synchronization/waitable_event.h"
#include "base/task/bind_post_task.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/thread_annotations.h"
#include "base/threading/thread_restrictions.h"
#include "base/trace_event/typed_macros.h"
#include "build/build_config.h"
#include "components/tracing/common/tracing_switches.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "services/tracing/public/cpp/perfetto/perfetto_config.h"
#include "services/tracing/public/cpp/perfetto/trace_packet_tokenizer.h"
#include "services/tracing/public/cpp/trace_startup_config.h"
#include "third_party/perfetto/include/perfetto/ext/tracing/core/trace_packet.h"
#include "third_party/perfetto/include/perfetto/tracing/core/trace_config.h"
#include "third_party/perfetto/include/perfetto/tracing/tracing.h"

#if BUILDFLAG(IS_ANDROID)
#include "content/browser/android/tracing_controller_android.h"
#endif  // BUILDFLAG(IS_ANDROID)

namespace content {

// A helper class responsible for coordinating emergency trace finalisation
// (e.g. when the process is about to be killed), which can be initiated from
// any thread.
class EmergencyTraceFinalisationCoordinator { … };

class StartupTracingController::BackgroundTracer { … };

// static
StartupTracingController& StartupTracingController::GetInstance() { … }

namespace {

base::FilePath BasenameToPath(std::string basename) { … }

}  // namespace

StartupTracingController::StartupTracingController() = default;
StartupTracingController::~StartupTracingController() = default;

base::FilePath StartupTracingController::GetOutputPath() { … }

void StartupTracingController::StartIfNeeded() { … }

void StartupTracingController::Stop(base::OnceClosure on_tracing_finished) { … }

void StartupTracingController::OnStoppedOnUIThread() { … }

void StartupTracingController::SetUsingTemporaryFile(
    StartupTracingController::TempFilePolicy temp_file_policy) { … }

void StartupTracingController::SetDefaultBasename(
    std::string basename,
    ExtensionType extension_type) { … }

void StartupTracingController::SetDefaultBasenameForTest(
    std::string basename,
    ExtensionType extension_type) { … }

void StartupTracingController::WaitUntilStopped() { … }

void StartupTracingController::ShutdownAndWaitForStopIfNeeded() { … }

// static
void StartupTracingController::EmergencyStop() { … }

}  // namespace content
chromium/content/browser/tracing/startup_tracing_controller.cc
