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000807898d
* Name the platform thread in the timeline. This does not affect (nor is it affected by) the pthread name set by the embedder. * Make it easier in the timeline to see not only when the frame was request, but also when that frame request was fulfilled. * Trace message loop wakes.
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/shell/common/tracing_controller.h"
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#include <string>
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#include "dart/runtime/include/dart_tools_api.h"
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#include "flutter/common/threads.h"
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#include "flutter/fml/trace_event.h"
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#include "flutter/runtime/dart_init.h"
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#include "flutter/shell/common/shell.h"
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#include "lib/ftl/logging.h"
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namespace shell {
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TracingController::TracingController() : tracing_active_(false) {
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blink::SetEmbedderTracingCallbacks(
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std::unique_ptr<blink::EmbedderTracingCallbacks>(
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new blink::EmbedderTracingCallbacks([this]() { StartTracing(); },
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[this]() { StopTracing(); })));
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}
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TracingController::~TracingController() {
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blink::SetEmbedderTracingCallbacks(nullptr);
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}
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static void AddTraceMetadata() {
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blink::Threads::Gpu()->PostTask([]() { Dart_SetThreadName("gpu_thread"); });
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blink::Threads::UI()->PostTask([]() { Dart_SetThreadName("ui_thread"); });
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blink::Threads::IO()->PostTask([]() { Dart_SetThreadName("io_thread"); });
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blink::Threads::Platform()->PostTask(
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[]() { Dart_SetThreadName("platform_thread"); });
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}
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void TracingController::StartTracing() {
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if (tracing_active_)
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return;
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tracing_active_ = true;
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AddTraceMetadata();
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}
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void TracingController::StopTracing() {
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if (!tracing_active_) {
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return;
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}
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tracing_active_ = false;
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}
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} // namespace shell
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