tracing_ui.cc | Explore in Territory

// Copyright 2012 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/tracing_ui.h"

#include <stddef.h>

#include <memory>
#include <optional>
#include <set>
#include <string>
#include <utility>
#include <vector>

#include "base/base64.h"
#include "base/command_line.h"
#include "base/format_macros.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/json/json_reader.h"
#include "base/json/json_writer.h"
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/trace_event/trace_event.h"
#include "base/values.h"
#include "content/browser/tracing/grit/tracing_resources.h"
#include "content/browser/tracing/tracing_controller_impl.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/browser/tracing_controller.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "services/tracing/public/cpp/perfetto/perfetto_config.h"
#include "services/tracing/public/cpp/perfetto/perfetto_session.h"
#include "third_party/perfetto/include/perfetto/tracing/tracing.h"
#include "third_party/perfetto/protos/perfetto/common/trace_stats.gen.h"

namespace content {
namespace {
constexpr char kStreamFormat[] = …;
constexpr char kStreamFormatProtobuf[] = …;
constexpr char kStreamFormatJSON[] = …;
perfetto::TracingSession* g_tracing_session = …;

void OnGotCategories(WebUIDataSource::GotDataCallback callback,
                     const std::set<std::string>& category_set) { … }

void OnRecordingEnabledAck(WebUIDataSource::GotDataCallback callback);

bool BeginRecording(const std::string& data64,
                    WebUIDataSource::GotDataCallback callback) { … }

void OnTraceBufferUsageResult(WebUIDataSource::GotDataCallback callback,
                              float percent_full,
                              size_t approximate_event_count) { … }

bool GetTraceBufferUsage(WebUIDataSource::GotDataCallback callback) { … }

void ReadProtobufTraceData(
    scoped_refptr<TracingController::TraceDataEndpoint> endpoint,
    perfetto::TracingSession::ReadTraceCallbackArgs args) { … }

void TracingCallbackWrapperBase64(WebUIDataSource::GotDataCallback callback,
                                  std::unique_ptr<std::string> data) { … }

bool EndRecording(WebUIDataSource::GotDataCallback callback) { … }

void OnRecordingEnabledAck(WebUIDataSource::GotDataCallback callback) { … }

bool OnBeginJSONRequest(const std::string& path,
                        WebUIDataSource::GotDataCallback callback) { … }

bool OnShouldHandleRequest(const std::string& path) { … }

void OnTracingRequest(const std::string& path,
                      WebUIDataSource::GotDataCallback callback) { … }

}  // namespace


////////////////////////////////////////////////////////////////////////////////
//
// TracingUI
//
////////////////////////////////////////////////////////////////////////////////

TracingUI::TracingUI(WebUI* web_ui) : … { … }

TracingUI::~TracingUI() = default;

// static
bool TracingUI::GetTracingOptions(const std::string& data64,
                                  base::trace_event::TraceConfig& trace_config,
                                  std::string& out_stream_format) { … }

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