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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_INSPECTOR_INSPECTOR_PERFORMANCE_AGENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_INSPECTOR_INSPECTOR_PERFORMANCE_AGENT_H_
#include <memory>
#include "base/macros.h"
#include "base/task/sequence_manager/task_time_observer.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/inspector/inspector_base_agent.h"
#include "third_party/blink/renderer/core/inspector/protocol/Performance.h"
#include "third_party/blink/renderer/platform/wtf/time.h"
namespace blink {
class InspectedFrames;
namespace probe {
class CallFunction;
class ExecuteScript;
class RecalculateStyle;
class UpdateLayout;
} // namespace probe
class CORE_EXPORT InspectorPerformanceAgent final
: public InspectorBaseAgent<protocol::Performance::Metainfo>,
public base::sequence_manager::TaskTimeObserver {
public:
void Trace(blink::Visitor*) override;
static InspectorPerformanceAgent* Create(InspectedFrames* inspected_frames) {
return new InspectorPerformanceAgent(inspected_frames);
}
~InspectorPerformanceAgent() override;
void Restore() override;
// Performance protocol domain implementation.
protocol::Response enable() override;
protocol::Response disable() override;
protocol::Response getMetrics(
std::unique_ptr<protocol::Array<protocol::Performance::Metric>>*
out_result) override;
// PerformanceMetrics probes implementation.
void ConsoleTimeStamp(const String& title);
void Will(const probe::CallFunction&);
void Did(const probe::CallFunction&);
void Will(const probe::ExecuteScript&);
void Did(const probe::ExecuteScript&);
void Will(const probe::RecalculateStyle&);
void Did(const probe::RecalculateStyle&);
void Will(const probe::UpdateLayout&);
void Did(const probe::UpdateLayout&);
// TaskTimeObserver implementation.
void WillProcessTask(base::TimeTicks start_time) override;
void DidProcessTask(base::TimeTicks start_time,
base::TimeTicks end_time) override;
private:
explicit InspectorPerformanceAgent(InspectedFrames*);
void ScriptStarts();
void ScriptEnds();
Member<InspectedFrames> inspected_frames_;
bool enabled_ = false;
TimeDelta layout_duration_;
TimeTicks layout_start_ticks_;
TimeDelta recalc_style_duration_;
TimeTicks recalc_style_start_ticks_;
TimeDelta script_duration_;
TimeTicks script_start_ticks_;
TimeDelta task_duration_;
TimeTicks task_start_ticks_;
unsigned long long layout_count_ = 0;
unsigned long long recalc_style_count_ = 0;
int script_call_depth_ = 0;
int layout_depth_ = 0;
DISALLOW_COPY_AND_ASSIGN(InspectorPerformanceAgent);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_INSPECTOR_INSPECTOR_PERFORMANCE_AGENT_H_
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