зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
2.0 KiB
C++
60 строки
2.0 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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#ifndef mozilla_AutoProfilerStyleMarker_h
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#define mozilla_AutoProfilerStyleMarker_h
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#include "mozilla/Attributes.h"
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#include "mozilla/ServoTraversalStatistics.h"
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#include "mozilla/TimeStamp.h"
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#include "GeckoProfiler.h"
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#include "ProfilerMarkerPayload.h"
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namespace mozilla {
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class MOZ_RAII AutoProfilerStyleMarker {
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public:
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explicit AutoProfilerStyleMarker(UniqueProfilerBacktrace aCause,
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const Maybe<nsID>& aDocShellId,
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const Maybe<uint32_t>& aDocShellHistoryId)
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: mActive(profiler_is_active()),
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mStartTime(TimeStamp::Now()),
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mCause(std::move(aCause)),
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mDocShellId(aDocShellId),
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mDocShellHistoryId(aDocShellHistoryId) {
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if (!mActive) {
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return;
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}
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MOZ_ASSERT(!ServoTraversalStatistics::sActive,
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"Nested AutoProfilerStyleMarker");
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ServoTraversalStatistics::sSingleton = ServoTraversalStatistics();
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ServoTraversalStatistics::sActive = true;
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}
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~AutoProfilerStyleMarker() {
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if (!mActive) {
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return;
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}
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ServoTraversalStatistics::sActive = false;
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profiler_add_marker("Styles", JS::ProfilingCategoryPair::LAYOUT,
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MakeUnique<StyleMarkerPayload>(
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mStartTime, TimeStamp::Now(), std::move(mCause),
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ServoTraversalStatistics::sSingleton, mDocShellId,
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mDocShellHistoryId));
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}
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private:
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bool mActive;
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TimeStamp mStartTime;
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UniqueProfilerBacktrace mCause;
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Maybe<nsID> mDocShellId;
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Maybe<uint32_t> mDocShellHistoryId;
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};
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} // namespace mozilla
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#endif // mozilla_AutoProfilerStyleMarker_h
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