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