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https://gitlab.winehq.org/wine/wine-gecko.git
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Bug 1184377 - Move nsDocShell::PopProfileTimelineMarkers logic to ObservedDocShell, r=smaug
This commit is contained in:
Victor Porof
parent
6c6335c808
commit
da3d283a9e
@ -2953,129 +2953,16 @@ nsDocShell::GetRecordProfileTimelineMarkers(bool* aValue)
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nsresult
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nsDocShell::PopProfileTimelineMarkers(
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JSContext* aCx,
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JS::MutableHandle<JS::Value> aProfileTimelineMarkers)
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JS::MutableHandle<JS::Value> aOut)
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{
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// Looping over all markers gathered so far at the docShell level, whenever a
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// START marker is found, look for the corresponding END marker and build a
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// {name,start,end} JS object.
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// Paint markers are different because paint is handled at root docShell level
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// in the information that a paint was done is then stored at each sub
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// docShell level but we can only be sure that a paint did happen in a
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// docShell if an Layer marker type was recorded too.
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nsTArray<dom::ProfileTimelineMarker> store;
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SequenceRooter<dom::ProfileTimelineMarker> rooter(aCx, &store);
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nsTArray<mozilla::dom::ProfileTimelineMarker> profileTimelineMarkers;
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SequenceRooter<mozilla::dom::ProfileTimelineMarker> rooter(
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aCx, &profileTimelineMarkers);
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if (!IsObserved()) {
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if (!ToJSValue(aCx, profileTimelineMarkers, aProfileTimelineMarkers)) {
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JS_ClearPendingException(aCx);
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return NS_ERROR_UNEXPECTED;
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}
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return NS_OK;
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if (IsObserved()) {
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mObserved->PopMarkers(aCx, store);
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}
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nsTArray<UniquePtr<TimelineMarker>>& markersStore = mObserved.get()->mTimelineMarkers;
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// If we see an unpaired START, we keep it around for the next call
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// to PopProfileTimelineMarkers. We store the kept START objects in
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// this array.
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nsTArray<UniquePtr<TimelineMarker>> keptMarkers;
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for (uint32_t i = 0; i < markersStore.Length(); ++i) {
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UniquePtr<TimelineMarker>& startPayload = markersStore[i];
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const char* startMarkerName = startPayload->GetName();
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bool hasSeenPaintedLayer = false;
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bool isPaint = strcmp(startMarkerName, "Paint") == 0;
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// If we are processing a Paint marker, we append information from
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// all the embedded Layer markers to this array.
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dom::Sequence<dom::ProfileTimelineLayerRect> layerRectangles;
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// If this is a TRACING_TIMESTAMP marker, there's no corresponding "end"
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// marker, as it's a single unit of time, not a duration, create the final
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// marker here.
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if (startPayload->GetMetaData() == TRACING_TIMESTAMP) {
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mozilla::dom::ProfileTimelineMarker* marker =
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profileTimelineMarkers.AppendElement();
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marker->mName = NS_ConvertUTF8toUTF16(startPayload->GetName());
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marker->mStart = startPayload->GetTime();
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marker->mEnd = startPayload->GetTime();
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marker->mStack = startPayload->GetStack();
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startPayload->AddDetails(aCx, *marker);
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continue;
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}
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if (startPayload->GetMetaData() == TRACING_INTERVAL_START) {
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bool hasSeenEnd = false;
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// DOM events can be nested, so we must take care when searching
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// for the matching end. It doesn't hurt to apply this logic to
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// all event types.
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uint32_t markerDepth = 0;
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// The assumption is that the devtools timeline flushes markers frequently
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// enough for the amount of markers to always be small enough that the
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// nested for loop isn't going to be a performance problem.
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for (uint32_t j = i + 1; j < markersStore.Length(); ++j) {
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UniquePtr<TimelineMarker>& endPayload = markersStore[j];
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const char* endMarkerName = endPayload->GetName();
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// Look for Layer markers to stream out paint markers.
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if (isPaint && strcmp(endMarkerName, "Layer") == 0) {
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hasSeenPaintedLayer = true;
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endPayload->AddLayerRectangles(layerRectangles);
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}
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if (!startPayload->Equals(*endPayload)) {
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continue;
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}
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// Pair start and end markers.
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if (endPayload->GetMetaData() == TRACING_INTERVAL_START) {
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++markerDepth;
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} else if (endPayload->GetMetaData() == TRACING_INTERVAL_END) {
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if (markerDepth > 0) {
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--markerDepth;
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} else {
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// But ignore paint start/end if no layer has been painted.
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if (!isPaint || (isPaint && hasSeenPaintedLayer)) {
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mozilla::dom::ProfileTimelineMarker* marker =
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profileTimelineMarkers.AppendElement();
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marker->mName = NS_ConvertUTF8toUTF16(startPayload->GetName());
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marker->mStart = startPayload->GetTime();
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marker->mEnd = endPayload->GetTime();
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marker->mStack = startPayload->GetStack();
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if (isPaint) {
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marker->mRectangles.Construct(layerRectangles);
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}
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startPayload->AddDetails(aCx, *marker);
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endPayload->AddDetails(aCx, *marker);
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}
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// We want the start to be dropped either way.
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hasSeenEnd = true;
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break;
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}
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}
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}
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// If we did not see the corresponding END, keep the START.
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if (!hasSeenEnd) {
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keptMarkers.AppendElement(Move(markersStore[i]));
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markersStore.RemoveElementAt(i);
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--i;
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}
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}
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}
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markersStore.SwapElements(keptMarkers);
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if (!ToJSValue(aCx, profileTimelineMarkers, aProfileTimelineMarkers)) {
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if (!ToJSValue(aCx, store, aOut)) {
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JS_ClearPendingException(aCx);
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return NS_ERROR_UNEXPECTED;
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}
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@ -34,4 +34,101 @@ ObservedDocShell::ClearMarkers()
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mTimelineMarkers.Clear();
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}
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void
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ObservedDocShell::PopMarkers(JSContext* aCx,
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nsTArray<dom::ProfileTimelineMarker>& aStore)
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{
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// If we see an unpaired START, we keep it around for the next call
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// to ObservedDocShell::PopMarkers. We store the kept START objects here.
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nsTArray<UniquePtr<TimelineMarker>> keptStartMarkers;
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for (uint32_t i = 0; i < mTimelineMarkers.Length(); ++i) {
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UniquePtr<TimelineMarker>& startPayload = mTimelineMarkers[i];
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// If this is a TRACING_TIMESTAMP marker, there's no corresponding END
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// as it's a single unit of time, not a duration.
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if (startPayload->GetMetaData() == TRACING_TIMESTAMP) {
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dom::ProfileTimelineMarker* marker = aStore.AppendElement();
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marker->mName = NS_ConvertUTF8toUTF16(startPayload->GetName());
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marker->mStart = startPayload->GetTime();
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marker->mEnd = startPayload->GetTime();
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marker->mStack = startPayload->GetStack();
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startPayload->AddDetails(aCx, *marker);
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continue;
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}
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// Whenever a START marker is found, look for the corresponding END
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// and build a {name,start,end} JS object.
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if (startPayload->GetMetaData() == TRACING_INTERVAL_START) {
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bool hasSeenEnd = false;
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// "Paint" markers are different because painting is handled at root
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// docshell level. The information that a paint was done is stored at
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// sub-docshell level, but we can only be sure that a paint did actually
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// happen in if a "Layer" marker was recorded too.
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bool startIsPaintType = strcmp(startPayload->GetName(), "Paint") == 0;
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bool hasSeenLayerType = false;
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// If we are processing a "Paint" marker, we append information from
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// all the embedded "Layer" markers to this array.
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dom::Sequence<dom::ProfileTimelineLayerRect> layerRectangles;
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// DOM events can be nested, so we must take care when searching
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// for the matching end. It doesn't hurt to apply this logic to
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// all event types.
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uint32_t markerDepth = 0;
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// The assumption is that the devtools timeline flushes markers frequently
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// enough for the amount of markers to always be small enough that the
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// nested for loop isn't going to be a performance problem.
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for (uint32_t j = i + 1; j < mTimelineMarkers.Length(); ++j) {
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UniquePtr<TimelineMarker>& endPayload = mTimelineMarkers[j];
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bool endIsLayerType = strcmp(endPayload->GetName(), "Layer") == 0;
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// Look for "Layer" markers to stream out "Paint" markers.
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if (startIsPaintType && endIsLayerType) {
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hasSeenLayerType = true;
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endPayload->AddLayerRectangles(layerRectangles);
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}
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if (!startPayload->Equals(*endPayload)) {
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continue;
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}
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if (endPayload->GetMetaData() == TRACING_INTERVAL_START) {
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++markerDepth;
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continue;
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}
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if (endPayload->GetMetaData() == TRACING_INTERVAL_END) {
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if (markerDepth > 0) {
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--markerDepth;
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continue;
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}
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if (!startIsPaintType || (startIsPaintType && hasSeenLayerType)) {
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dom::ProfileTimelineMarker* marker = aStore.AppendElement();
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marker->mName = NS_ConvertUTF8toUTF16(startPayload->GetName());
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marker->mStart = startPayload->GetTime();
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marker->mEnd = endPayload->GetTime();
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marker->mStack = startPayload->GetStack();
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if (hasSeenLayerType) {
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marker->mRectangles.Construct(layerRectangles);
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}
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startPayload->AddDetails(aCx, *marker);
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endPayload->AddDetails(aCx, *marker);
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}
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hasSeenEnd = true;
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break;
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}
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}
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// If we did not see the corresponding END, keep the START.
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if (!hasSeenEnd) {
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keptStartMarkers.AppendElement(Move(mTimelineMarkers[i]));
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mTimelineMarkers.RemoveElementAt(i);
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--i;
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}
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}
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}
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mTimelineMarkers.SwapElements(keptStartMarkers);
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}
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} // namespace mozilla
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@ -15,6 +15,9 @@ class nsDocShell;
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class TimelineMarker;
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namespace mozilla {
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namespace dom {
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struct ProfileTimelineMarker;
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}
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// # ObservedDocShell
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//
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@ -24,18 +27,16 @@ class ObservedDocShell : public LinkedListElement<ObservedDocShell>
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{
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private:
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nsRefPtr<nsDocShell> mDocShell;
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public:
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// FIXME: make this private once all marker-specific logic has been
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// moved out of nsDocShell.
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nsTArray<UniquePtr<TimelineMarker>> mTimelineMarkers;
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public:
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explicit ObservedDocShell(nsDocShell* aDocShell);
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nsDocShell* operator*() const { return mDocShell.get(); }
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void AddMarker(const char* aName, TracingMetadata aMetaData);
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void AddMarker(UniquePtr<TimelineMarker>&& aMarker);
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void ClearMarkers();
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void PopMarkers(JSContext* aCx, nsTArray<dom::ProfileTimelineMarker>& aStore);
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};
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} // namespace mozilla
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