зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
2.6 KiB
C++
91 строка
2.6 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/EnumeratedArray.h"
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#include "mozilla/EnumeratedRange.h"
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#include "mozilla/FlushType.h"
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#include "mozilla/Saturate.h"
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#include "mozilla/TimeStamp.h"
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#define LAYOUT_TELEMETRY_RECORD(subsystem) \
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layout_telemetry::AutoRecord a(layout_telemetry::LayoutSubsystem::subsystem)
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#define LAYOUT_TELEMETRY_RECORD_BASE(subsystem) \
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layout_telemetry::AutoRecord a(&mLayoutTelemetry, \
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layout_telemetry::LayoutSubsystem::subsystem)
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namespace mozilla {
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namespace layout_telemetry {
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enum class FlushKind : uint8_t { Style, Layout, Count };
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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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using LayoutSubsystemDurations =
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EnumeratedArray<LayoutSubsystem, LayoutSubsystem::Count, double>;
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using LayoutFlushCount =
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EnumeratedArray<FlushKind, FlushKind::Count, SaturateUint8>;
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struct Data {
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Data();
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void IncReqsPerFlush(FlushType aFlushType);
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void IncFlushesPerTick(FlushType aFlushType);
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void PingTelemetry();
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// Send the current number of flush requests for aFlushType to telemetry and
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// reset the count.
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void PingReqsPerFlushTelemetry(FlushType aFlushType);
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// Send the current non-zero number of style and layout flushes to telemetry
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// and reset the count.
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void PingFlushPerTickTelemetry(FlushType aFlushType);
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// Send the current non-zero time spent under style and layout processing this
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// tick to telemetry and reset the total.
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void PingTotalMsPerTickTelemetry(FlushType aFlushType);
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// Send the current per-tick telemetry for `aFlushType`.
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void PingPerTickTelemetry(FlushType aFlushType);
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LayoutFlushCount mReqsPerFlush;
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LayoutFlushCount mFlushesPerTick;
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LayoutSubsystemDurations mLayoutSubsystemDurationMs;
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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(Data* aLayoutTelemetry, LayoutSubsystem aSubsystem);
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~AutoRecord();
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private:
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AutoRecord* mParentRecord;
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Data* mLayoutTelemetry;
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LayoutSubsystem mSubsystem;
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TimeStamp mStartTime;
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double mDurationMs;
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};
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} // namespace layout_telemetry
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} // namespace mozilla
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#endif // !mozilla_LayoutTelemetryTools_h
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