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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Tools for collecting and reporting layout and style telemetry */
#ifndef mozilla_LayoutTelemetryTools_h
#define mozilla_LayoutTelemetryTools_h
#include "mozilla/TimeStamp.h"
#define LAYOUT_TELEMETRY_RECORD(subsystem) \
mozilla::layout_telemetry::AutoRecord a( \
mozilla::layout_telemetry::LayoutSubsystem::subsystem)
namespace mozilla::layout_telemetry {
// Send the current per-tick telemetry.
void PingPerTickTelemetry();
enum class LayoutSubsystem : uint8_t {
Restyle,
Reflow,
ReflowFlex,
ReflowGrid,
ReflowTable,
ReflowText,
Count
};
class AutoRecord {
public:
explicit AutoRecord(LayoutSubsystem aSubsystem);
~AutoRecord();
private:
AutoRecord* const mParentRecord;
const LayoutSubsystem mSubsystem;
TimeStamp mStartTime;
double mDurationMs = 0.0;
};
} // namespace mozilla::layout_telemetry
#endif // !mozilla_LayoutTelemetryTools_h