summaryrefslogtreecommitdiffstats
path: root/layout/base/AutoProfilerStyleMarker.h
diff options
context:
space:
mode:
Diffstat (limited to 'layout/base/AutoProfilerStyleMarker.h')
-rw-r--r--layout/base/AutoProfilerStyleMarker.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/layout/base/AutoProfilerStyleMarker.h b/layout/base/AutoProfilerStyleMarker.h
new file mode 100644
index 0000000000..5a8e6346b7
--- /dev/null
+++ b/layout/base/AutoProfilerStyleMarker.h
@@ -0,0 +1,94 @@
+/* -*- 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/. */
+
+#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()),
+ mStartTime(TimeStamp::Now()),
+ mCause(std::move(aCause)),
+ mInnerWindowID(aInnerWindowID) {
+ if (!mActive) {
+ return;
+ }
+ MOZ_ASSERT(!ServoTraversalStatistics::sActive,
+ "Nested AutoProfilerStyleMarker");
+ ServoTraversalStatistics::sSingleton = ServoTraversalStatistics();
+ ServoTraversalStatistics::sActive = true;
+ }
+
+ ~AutoProfilerStyleMarker() {
+ if (!mActive) {
+ return;
+ }
+
+ struct StyleMarker {
+ static constexpr mozilla::Span<const char> MarkerTypeName() {
+ return mozilla::MakeStringSpan("Styles");
+ }
+ static void StreamJSONMarkerData(
+ baseprofiler::SpliceableJSONWriter& aWriter,
+ uint32_t aElementsTraversed, uint32_t aElementsStyled,
+ uint32_t aElementsMatched, uint32_t aStylesShared,
+ uint32_t aStylesReused) {
+ aWriter.IntProperty("elementsTraversed", aElementsTraversed);
+ aWriter.IntProperty("elementsStyled", aElementsStyled);
+ aWriter.IntProperty("elementsMatched", aElementsMatched);
+ aWriter.IntProperty("stylesShared", aStylesShared);
+ aWriter.IntProperty("stylesReused", aStylesReused);
+ }
+ static MarkerSchema MarkerTypeDisplay() {
+ using MS = MarkerSchema;
+ MS schema{MS::Location::MarkerChart, MS::Location::MarkerTable,
+ MS::Location::TimelineOverview};
+ schema.AddKeyLabelFormat("elementsTraversed", "Elements traversed",
+ MS::Format::Integer);
+ schema.AddKeyLabelFormat("elementsStyled", "Elements styled",
+ MS::Format::Integer);
+ schema.AddKeyLabelFormat("elementsMatched", "Elements matched",
+ MS::Format::Integer);
+ schema.AddKeyLabelFormat("stylesShared", "Styles shared",
+ MS::Format::Integer);
+ schema.AddKeyLabelFormat("stylesReused", "Styles reused",
+ MS::Format::Integer);
+ return schema;
+ }
+ };
+
+ ServoTraversalStatistics::sActive = false;
+ profiler_add_marker("Styles", geckoprofiler::category::LAYOUT,
+ {MarkerTiming::IntervalUntilNowFrom(mStartTime),
+ MarkerStack::TakeBacktrace(std::move(mCause)),
+ MarkerInnerWindowId(mInnerWindowID)},
+ StyleMarker{},
+ ServoTraversalStatistics::sSingleton.mElementsTraversed,
+ ServoTraversalStatistics::sSingleton.mElementsStyled,
+ ServoTraversalStatistics::sSingleton.mElementsMatched,
+ ServoTraversalStatistics::sSingleton.mStylesShared,
+ ServoTraversalStatistics::sSingleton.mStylesReused);
+ }
+
+ private:
+ bool mActive;
+ TimeStamp mStartTime;
+ UniquePtr<ProfileChunkedBuffer> mCause;
+ Maybe<uint64_t> mInnerWindowID;
+};
+
+} // namespace mozilla
+
+#endif // mozilla_AutoProfilerStyleMarker_h