92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
// Copyright (c) 2014 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include <set>
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#include <string>
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#include "atom/common/native_mate_converters/callback.h"
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#include "atom/common/native_mate_converters/file_path_converter.h"
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#include "atom/common/native_mate_converters/value_converter.h"
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#include "base/bind.h"
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#include "base/files/file_util.h"
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#include "content/public/browser/tracing_controller.h"
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#include "native_mate/dictionary.h"
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#include "atom/common/node_includes.h"
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using content::TracingController;
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namespace mate {
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template <>
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struct Converter<base::trace_event::TraceConfig> {
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static bool FromV8(v8::Isolate* isolate,
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v8::Local<v8::Value> val,
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base::trace_event::TraceConfig* out) {
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// (alexeykuzmin): A combination of "categoryFilter" and "traceOptions"
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// has to be checked first because none of the fields
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// in the `memory_dump_config` dict below are mandatory
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// and we cannot check the config format.
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Dictionary options;
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if (ConvertFromV8(isolate, val, &options)) {
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std::string category_filter, trace_options;
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if (options.Get("categoryFilter", &category_filter) &&
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options.Get("traceOptions", &trace_options)) {
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*out = base::trace_event::TraceConfig(category_filter, trace_options);
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return true;
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}
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}
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base::DictionaryValue memory_dump_config;
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if (ConvertFromV8(isolate, val, &memory_dump_config)) {
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*out = base::trace_event::TraceConfig(memory_dump_config);
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return true;
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}
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return false;
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}
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};
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} // namespace mate
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namespace {
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using CompletionCallback = base::Callback<void(const base::FilePath&)>;
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scoped_refptr<TracingController::TraceDataEndpoint> GetTraceDataEndpoint(
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const base::FilePath& path,
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const CompletionCallback& callback) {
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base::FilePath result_file_path = path;
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if (result_file_path.empty() && !base::CreateTemporaryFile(&result_file_path))
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LOG(ERROR) << "Creating temporary file failed";
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return TracingController::CreateFileEndpoint(
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result_file_path, base::Bind(callback, result_file_path));
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}
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void StopRecording(const base::FilePath& path,
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const CompletionCallback& callback) {
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TracingController::GetInstance()->StopTracing(
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GetTraceDataEndpoint(path, callback));
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}
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void Initialize(v8::Local<v8::Object> exports,
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v8::Local<v8::Value> unused,
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v8::Local<v8::Context> context,
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void* priv) {
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auto controller = base::Unretained(TracingController::GetInstance());
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mate::Dictionary dict(context->GetIsolate(), exports);
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dict.SetMethod("getCategories",
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base::Bind(&TracingController::GetCategories, controller));
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dict.SetMethod("startRecording",
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base::Bind(&TracingController::StartTracing, controller));
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dict.SetMethod("stopRecording", &StopRecording);
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dict.SetMethod(
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"getTraceBufferUsage",
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base::Bind(&TracingController::GetTraceBufferUsage, controller));
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}
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} // namespace
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NODE_BUILTIN_MODULE_CONTEXT_AWARE(atom_browser_content_tracing, Initialize)
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