firefox-main/layout/base/AutoProfilerStyleMarker.h (file symbol)

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/* 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/. */
#ifndef mozilla_AutoProfilerStyleMarker_h
#define mozilla_AutoProfilerStyleMarker_h
#include "mozilla/Attributes.h"
#include "mozilla/ProfilerMarkers.h"
#include "mozilla/ServoTraversalStatistics.h"
#include "mozilla/TimeStamp.h"
namespace mozilla {
class MOZ_RAII AutoProfilerStyleMarker {
public:
explicit AutoProfilerStyleMarker(UniquePtr<ProfileChunkedBuffer> aCause,
const Maybe<uint64_t>& aInnerWindowID)
: mActive(profiler_thread_is_being_profiled_for_markers()),
mCause(std::move(aCause)),
mInnerWindowID(aInnerWindowID) {
if (!mActive) {
return;
}
mPreviousSingleton = ServoTraversalStatistics::sSingleton;
ServoTraversalStatistics::sSingleton = &mStats;
mStartTime = TimeStamp::Now();
}
~AutoProfilerStyleMarker() {
if (!mActive) {
return;
}
ServoTraversalStatistics::sSingleton = mPreviousSingleton;
profiler_add_marker("Styles", geckoprofiler::category::LAYOUT,
{MarkerTiming::IntervalUntilNowFrom(mStartTime),
MarkerStack::TakeBacktrace(std::move(mCause)),
MarkerInnerWindowId(mInnerWindowID)},
StyleMarker{}, mStats.mElementsTraversed,
mStats.mElementsStyled, mStats.mElementsMatched,
mStats.mStylesShared, mStats.mStylesReused);
}
private:
struct StyleMarker : public BaseMarkerType<StyleMarker> {
static constexpr const char* Name = "Styles";
using MS = MarkerSchema;
static constexpr MS::Location Locations[] = {
MS::Location::MarkerChart,
MS::Location::MarkerTable,
MS::Location::TimelineOverview,
};
static constexpr MS::PayloadField PayloadFields[] = {
{"elementsTraversed", MS::InputType::Uint32, "Elements traversed",
MS::Format::Integer},
{"elementsStyled", MS::InputType::Uint32, "Elements styled",
MS::Format::Integer},
{"elementsMatched", MS::InputType::Uint32, "Elements matched",
MS::Format::Integer},
{"stylesShared", MS::InputType::Uint32, "Styles shared",
MS::Format::Integer},
{"stylesReused", MS::InputType::Uint32, "Styles reused",
MS::Format::Integer},
};
};
bool mActive;
TimeStamp mStartTime;
UniquePtr<ProfileChunkedBuffer> mCause;
Maybe<uint64_t> mInnerWindowID;
ServoTraversalStatistics mStats;
ServoTraversalStatistics* mPreviousSingleton = nullptr;
};
} // namespace mozilla
#endif // mozilla_AutoProfilerStyleMarker_h