void mozilla_sampler_add_marker(const char *aMarker, ProfilerMarkerPayload *aPayload)
{
// Note that aPayload may be allocated by the caller, so we need to make sure
// that we free it at some point.
mozilla::UniquePtr<ProfilerMarkerPayload> payload(aPayload);
if (!stack_key_initialized)
return;
// Don't insert a marker if we're not profiling to avoid
// the heap copy (malloc).
if (!profiler_is_active()) {
return;
}
// Don't add a marker if we don't want to include personal information
if (profiler_in_privacy_mode()) {
return;
}
PseudoStack *stack = tlsPseudoStack.get();
if (!stack) {
return;
}
mozilla::TimeStamp origin = (aPayload && !aPayload->GetStartTime().IsNull()) ?
aPayload->GetStartTime() : mozilla::TimeStamp::Now();
mozilla::TimeDuration delta = origin - sStartTime;
stack->addMarker(aMarker, payload.release(), delta.ToMilliseconds());
}
void
mozilla_sampler_log(const char *fmt, va_list args)
{
if (profiler_is_active()) {
// nsAutoCString AppendPrintf would be nicer but
// this is mozilla external code
char buf[2048];
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, args);
int required = vsnprintf(buf, sizeof(buf), fmt, argsCpy);
va_end(argsCpy);
if (required < 0) {
return; // silently drop for now
} else if (required < 2048) {
profiler_tracing("log", buf, TRACING_EVENT);
} else {
char* heapBuf = new char[required+1];
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, args);
vsnprintf(heapBuf, required+1, fmt, argsCpy);
va_end(argsCpy);
// EVENT_BACKTRACE could be used to get a source
// for all log events. This could be a runtime
// flag later.
profiler_tracing("log", heapBuf, TRACING_EVENT);
delete[] heapBuf;
}
}
}
void
ThreadStackHelper::GetStack(Stack& aStack)
{
// Always run PrepareStackBuffer first to clear aStack
if (!PrepareStackBuffer(aStack)) {
// Skip and return empty aStack
return;
}
#if defined(XP_LINUX)
if (profiler_is_active()) {
// Profiler can interfere with our Linux signal handling
return;
}
if (!sInitialized) {
MOZ_ASSERT(false);
return;
}
sCurrent = this;
struct sigaction sigact = {};
sigact.sa_sigaction = SigAction;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = SA_SIGINFO | SA_RESTART;
if (::sigaction(SIGPROF, &sigact, &sOldSigAction)) {
MOZ_ASSERT(false);
return;
}
MOZ_ALWAYS_TRUE(!::syscall(SYS_tgkill, getpid(), mThreadID, SIGPROF));
MOZ_ALWAYS_TRUE(!::sem_wait(&sSem));
#elif defined(XP_WIN)
if (!mInitialized) {
MOZ_ASSERT(false);
return;
}
if (::SuspendThread(mThreadID) == DWORD(-1)) {
MOZ_ASSERT(false);
return;
}
FillStackBuffer();
MOZ_ALWAYS_TRUE(::ResumeThread(mThreadID) != DWORD(-1));
#elif defined(XP_MACOSX)
if (::thread_suspend(mThreadID) != KERN_SUCCESS) {
MOZ_ASSERT(false);
return;
}
FillStackBuffer();
MOZ_ALWAYS_TRUE(::thread_resume(mThreadID) == KERN_SUCCESS);
#endif
aStack = Move(mStackBuffer);
}
void
CompositorVsyncDispatcher::NotifyVsync(TimeStamp aVsyncTimestamp)
{
// In vsync thread
#ifdef MOZ_ENABLE_PROFILER_SPS
if (profiler_is_active()) {
layers::CompositorParent::PostInsertVsyncProfilerMarker(aVsyncTimestamp);
}
#endif
MutexAutoLock lock(mCompositorObserverLock);
if (mCompositorVsyncObserver) {
mCompositorVsyncObserver->NotifyVsync(aVsyncTimestamp);
}
}
bool mozilla_sampler_register_thread(const char* aName, void* stackTop)
{
#if defined(MOZ_WIDGET_GONK) && !defined(MOZ_PROFILING)
// The only way to profile secondary threads on b2g
// is to build with profiling OR have the profiler
// running on startup.
if (!profiler_is_active()) {
return false;
}
#endif
PseudoStack* stack = new PseudoStack();
tlsPseudoStack.set(stack);
bool isMainThread = is_main_thread_name(aName);
return Sampler::RegisterCurrentThread(aName, stack, isMainThread, stackTop);
}
void mozilla_sampler_get_gatherer(nsISupports** aRetVal)
{
if (!aRetVal) {
return;
}
if (NS_WARN_IF(!profiler_is_active())) {
*aRetVal = nullptr;
return;
}
GeckoSampler *t = tlsTicker.get();
if (NS_WARN_IF(!t)) {
*aRetVal = nullptr;
return;
}
t->GetGatherer(aRetVal);
}
void
GeckoTouchDispatcher::DispatchTouchEvent(MultiTouchInput aMultiTouch)
{
if ((aMultiTouch.mType == MultiTouchInput::MULTITOUCH_END ||
aMultiTouch.mType == MultiTouchInput::MULTITOUCH_CANCEL) &&
aMultiTouch.mTouches.Length() == 1) {
MutexAutoLock lock(mTouchQueueLock);
mTouchMoveEvents.clear();
} else if (aMultiTouch.mType == MultiTouchInput::MULTITOUCH_START &&
aMultiTouch.mTouches.Length() == 1) {
mTouchEventsFiltered = IsExpired(aMultiTouch);
}
if (mTouchEventsFiltered) {
return;
}
nsWindow::DispatchTouchInput(aMultiTouch);
if (mEnabledUniformityInfo && profiler_is_active()) {
const char* touchAction = "Invalid";
switch (aMultiTouch.mType) {
case MultiTouchInput::MULTITOUCH_START:
touchAction = "Touch_Event_Down";
break;
case MultiTouchInput::MULTITOUCH_MOVE:
touchAction = "Touch_Event_Move";
break;
case MultiTouchInput::MULTITOUCH_END:
case MultiTouchInput::MULTITOUCH_CANCEL:
touchAction = "Touch_Event_Up";
break;
case MultiTouchInput::MULTITOUCH_SENTINEL:
MOZ_ASSERT_UNREACHABLE("Invalid MultTouchInput.");
break;
}
const ScreenIntPoint& touchPoint = aMultiTouch.mTouches[0].mScreenPoint;
TouchDataPayload* payload = new TouchDataPayload(touchPoint);
PROFILER_MARKER_PAYLOAD(touchAction, payload);
}
}
ProfilerBacktrace* mozilla_sampler_get_backtrace()
{
if (!stack_key_initialized)
return nullptr;
// Don't capture a stack if we're not profiling
if (!profiler_is_active()) {
return nullptr;
}
// Don't capture a stack if we don't want to include personal information
if (profiler_in_privacy_mode()) {
return nullptr;
}
GeckoSampler* t = tlsTicker.get();
if (!t) {
return nullptr;
}
return new ProfilerBacktrace(t->GetBacktrace());
}
bool mozilla_sampler_register_thread(const char* aName, void* aGuessStackTop)
{
if (sInitCount == 0) {
return false;
}
#if defined(MOZ_WIDGET_GONK) && !defined(MOZ_PROFILING)
// The only way to profile secondary threads on b2g
// is to build with profiling OR have the profiler
// running on startup.
if (!profiler_is_active()) {
return false;
}
#endif
MOZ_ASSERT(tlsPseudoStack.get() == nullptr);
PseudoStack* stack = PseudoStack::create();
tlsPseudoStack.set(stack);
bool isMainThread = is_main_thread_name(aName);
void* stackTop = GetStackTop(aGuessStackTop);
return Sampler::RegisterCurrentThread(aName, stack, isMainThread, stackTop);
}
bool mozilla_sampler_feature_active(const char* aName)
{
if (!profiler_is_active()) {
return false;
}
if (strcmp(aName, "gpu") == 0) {
return sIsGPUProfiling;
}
if (strcmp(aName, "layersdump") == 0) {
return sIsLayersDump;
}
if (strcmp(aName, "displaylistdump") == 0) {
return sIsDisplayListDump;
}
if (strcmp(aName, "restyle") == 0) {
return sIsRestyleProfiling;
}
return false;
}
void
RestyleTracker::DoProcessRestyles()
{
nsAutoCString docURL;
if (profiler_is_active()) {
nsIURI *uri = Document()->GetDocumentURI();
if (uri) {
uri->GetSpec(docURL);
} else {
docURL = "N/A";
}
}
PROFILER_LABEL_PRINTF("RestyleTracker", "ProcessRestyles",
js::ProfileEntry::Category::CSS, "(%s)", docURL.get());
nsDocShell* docShell = static_cast<nsDocShell*>(mRestyleManager->PresContext()->GetDocShell());
RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
bool isTimelineRecording = timelines && timelines->HasConsumer(docShell);
// Create a AnimationsWithDestroyedFrame during restyling process to
// stop animations and transitions on elements that have no frame at the end
// of the restyling process.
RestyleManager::AnimationsWithDestroyedFrame
animationsWithDestroyedFrame(mRestyleManager);
// Create a ReframingStyleContexts struct on the stack and put it in our
// mReframingStyleContexts for almost all of the remaining scope of
// this function.
//
// It needs to be *in* scope during BeginProcessingRestyles, which
// might (if mDoRebuildAllStyleData is true) do substantial amounts of
// restyle processing.
//
// However, it needs to be *out* of scope during
// EndProcessingRestyles, since we should release the style contexts
// it holds prior to any EndReconstruct call that
// EndProcessingRestyles makes. This is because in EndReconstruct we
// try to destroy the old rule tree using the GC mechanism, which
// means it only gets destroyed if it's unreferenced (and if it's
// referenced, we assert). So we want the ReframingStyleContexts
// (which holds old style contexts) to be destroyed before the
// EndReconstruct so those style contexts go away before
// EndReconstruct.
{
RestyleManager::ReframingStyleContexts
reframingStyleContexts(mRestyleManager);
mRestyleManager->BeginProcessingRestyles(*this);
LOG_RESTYLE("Processing %d pending %srestyles with %d restyle roots for %s",
mPendingRestyles.Count(),
mRestyleManager->PresContext()->TransitionManager()->
InAnimationOnlyStyleUpdate()
? (const char*) "animation " : (const char*) "",
static_cast<int>(mRestyleRoots.Length()),
GetDocumentURI(Document()).get());
LOG_RESTYLE_INDENT();
// loop so that we process any restyle events generated by processing
while (mPendingRestyles.Count()) {
if (mHaveLaterSiblingRestyles) {
// Convert them to individual restyles on all the later siblings
AutoTArray<RefPtr<Element>, RESTYLE_ARRAY_STACKSIZE> laterSiblingArr;
for (auto iter = mPendingRestyles.Iter(); !iter.Done(); iter.Next()) {
auto element = static_cast<dom::Element*>(iter.Key());
MOZ_ASSERT(!element->IsStyledByServo(), "Should not have Servo-styled elements here");
// Only collect the entries that actually need restyling by us (and
// haven't, for example, already been restyled).
// It's important to not mess with the flags on entries not in our
// document.
if (element->GetComposedDoc() == Document() &&
element->HasFlag(RestyleBit()) &&
(iter.Data()->mRestyleHint & eRestyle_LaterSiblings)) {
laterSiblingArr.AppendElement(element);
}
}
for (uint32_t i = 0; i < laterSiblingArr.Length(); ++i) {
Element* element = laterSiblingArr[i];
MOZ_ASSERT(!element->IsStyledByServo());
for (nsIContent* sibling = element->GetNextSibling();
sibling;
sibling = sibling->GetNextSibling()) {
if (sibling->IsElement()) {
LOG_RESTYLE("adding pending restyle for %s due to "
"eRestyle_LaterSiblings hint on %s",
FrameTagToString(sibling->AsElement()).get(),
FrameTagToString(element->AsElement()).get());
if (AddPendingRestyle(sibling->AsElement(), eRestyle_Subtree,
nsChangeHint(0))) {
// Nothing else to do here; we'll handle the following
// siblings when we get to |sibling| in laterSiblingArr.
break;
}
}
}
}
// Now remove all those eRestyle_LaterSiblings bits
for (uint32_t i = 0; i < laterSiblingArr.Length(); ++i) {
Element* element = laterSiblingArr[i];
NS_ASSERTION(element->HasFlag(RestyleBit()), "How did that happen?");
RestyleData* data;
#ifdef DEBUG
bool found =
#endif
mPendingRestyles.Get(element, &data);
NS_ASSERTION(found, "Where did our entry go?");
data->mRestyleHint =
nsRestyleHint(data->mRestyleHint & ~eRestyle_LaterSiblings);
}
LOG_RESTYLE("%d pending restyles after expanding out "
"eRestyle_LaterSiblings", mPendingRestyles.Count());
mHaveLaterSiblingRestyles = false;
}
uint32_t rootCount;
while ((rootCount = mRestyleRoots.Length())) {
// Make sure to pop the element off our restyle root array, so
// that we can freely append to the array as we process this
// element.
RefPtr<Element> element;
element.swap(mRestyleRoots[rootCount - 1]);
mRestyleRoots.RemoveElementAt(rootCount - 1);
LOG_RESTYLE("processing style root %s at index %d",
FrameTagToString(element).get(), rootCount - 1);
LOG_RESTYLE_INDENT();
// Do the document check before calling GetRestyleData, since we
// don't want to do the sibling-processing GetRestyleData does if
// the node is no longer relevant.
if (element->GetComposedDoc() != Document()) {
// Content node has been removed from our document; nothing else
// to do here
LOG_RESTYLE("skipping, no longer in the document");
continue;
}
nsAutoPtr<RestyleData> data;
if (!GetRestyleData(element, data)) {
LOG_RESTYLE("skipping, already restyled");
continue;
}
if (isTimelineRecording) {
timelines->AddMarkerForDocShell(docShell, Move(
MakeUnique<RestyleTimelineMarker>(
data->mRestyleHint, MarkerTracingType::START)));
}
#if defined(MOZ_ENABLE_PROFILER_SPS)
Maybe<GeckoProfilerTracingRAII> profilerRAII;
if (profiler_feature_active("restyle")) {
profilerRAII.emplace("Paint", "Styles", Move(data->mBacktrace));
}
#endif
ProcessOneRestyle(element, data->mRestyleHint, data->mChangeHint,
data->mRestyleHintData);
AddRestyleRootsIfAwaitingRestyle(data->mDescendants);
if (isTimelineRecording) {
timelines->AddMarkerForDocShell(docShell, Move(
MakeUnique<RestyleTimelineMarker>(
data->mRestyleHint, MarkerTracingType::END)));
}
}
if (mHaveLaterSiblingRestyles) {
// Keep processing restyles for now
continue;
}
// Now we only have entries with change hints left. To be safe in
// case of reentry from the handing of the change hint, use a
// scratch array instead of calling out to ProcessOneRestyle while
// enumerating the hashtable. Use the stack if we can, otherwise
// fall back on heap-allocation.
AutoTArray<RestyleEnumerateData, RESTYLE_ARRAY_STACKSIZE> restyleArr;
RestyleEnumerateData* restylesToProcess =
restyleArr.AppendElements(mPendingRestyles.Count());
if (restylesToProcess) {
RestyleEnumerateData* restyle = restylesToProcess;
#ifdef RESTYLE_LOGGING
uint32_t count = 0;
#endif
for (auto iter = mPendingRestyles.Iter(); !iter.Done(); iter.Next()) {
auto element = static_cast<dom::Element*>(iter.Key());
RestyleTracker::RestyleData* data = iter.Data();
// Only collect the entries that actually need restyling by us (and
// haven't, for example, already been restyled).
// It's important to not mess with the flags on entries not in our
// document.
if (element->GetComposedDoc() != Document() ||
!element->HasFlag(RestyleBit())) {
LOG_RESTYLE("skipping pending restyle %s, already restyled or no "
"longer in the document",
FrameTagToString(element).get());
continue;
}
NS_ASSERTION(
!element->HasFlag(RootBit()) ||
// Maybe we're just not reachable via the frame tree?
(element->GetFlattenedTreeParent() &&
(!element->GetFlattenedTreeParent()->GetPrimaryFrame() ||
element->GetFlattenedTreeParent()->GetPrimaryFrame()->IsLeaf() ||
element->GetComposedDoc()->GetShell()->FrameManager()
->GetDisplayContentsStyleFor(element))) ||
// Or not reachable due to an async reinsert we have
// pending? If so, we'll have a reframe hint around.
// That incidentally makes it safe that we still have
// the bit, since any descendants that didn't get added
// to the roots list because we had the bits will be
// completely restyled in a moment.
(data->mChangeHint & nsChangeHint_ReconstructFrame),
"Why did this not get handled while processing mRestyleRoots?");
// Unset the restyle bits now, so if they get readded later as we
// process we won't clobber that adding of the bit.
element->UnsetFlags(RestyleBit() |
RootBit() |
ConditionalDescendantsBit());
restyle->mElement = element;
restyle->mRestyleHint = data->mRestyleHint;
restyle->mChangeHint = data->mChangeHint;
// We can move data since we'll be clearing mPendingRestyles after
// we finish enumerating it.
restyle->mRestyleHintData = Move(data->mRestyleHintData);
#if defined(MOZ_ENABLE_PROFILER_SPS)
restyle->mBacktrace = Move(data->mBacktrace);
#endif
#ifdef RESTYLE_LOGGING
count++;
#endif
// Increment to the next slot in the array
restyle++;
}
RestyleEnumerateData* lastRestyle = restyle;
// Clear the hashtable now that we don't need it anymore
mPendingRestyles.Clear();
#ifdef RESTYLE_LOGGING
uint32_t index = 0;
#endif
for (RestyleEnumerateData* currentRestyle = restylesToProcess;
currentRestyle != lastRestyle;
++currentRestyle) {
LOG_RESTYLE("processing pending restyle %s at index %d/%d",
FrameTagToString(currentRestyle->mElement).get(),
index++, count);
LOG_RESTYLE_INDENT();
#if defined(MOZ_ENABLE_PROFILER_SPS)
Maybe<GeckoProfilerTracingRAII> profilerRAII;
if (profiler_feature_active("restyle")) {
profilerRAII.emplace("Paint", "Styles", Move(currentRestyle->mBacktrace));
}
#endif
if (isTimelineRecording) {
timelines->AddMarkerForDocShell(docShell, Move(
MakeUnique<RestyleTimelineMarker>(
currentRestyle->mRestyleHint, MarkerTracingType::START)));
}
ProcessOneRestyle(currentRestyle->mElement,
currentRestyle->mRestyleHint,
currentRestyle->mChangeHint,
currentRestyle->mRestyleHintData);
if (isTimelineRecording) {
timelines->AddMarkerForDocShell(docShell, Move(
MakeUnique<RestyleTimelineMarker>(
currentRestyle->mRestyleHint, MarkerTracingType::END)));
}
}
}
}
}
// mPendingRestyles is now empty.
mHaveSelectors = false;
mRestyleManager->EndProcessingRestyles();
}
static double GetProfilerTime() {
if (!profiler_is_active()) {
return 0.0;
}
return profiler_time();
};
void
RestyleTracker::DoProcessRestyles()
{
nsAutoCString docURL;
if (profiler_is_active()) {
nsIURI *uri = Document()->GetDocumentURI();
if (uri) {
uri->GetSpec(docURL);
} else {
docURL = "N/A";
}
}
PROFILER_LABEL_PRINTF("RestyleTracker", "ProcessRestyles",
js::ProfileEntry::Category::CSS, "(%s)", docURL.get());
bool isTimelineRecording = false;
nsDocShell* docShell =
static_cast<nsDocShell*>(mRestyleManager->PresContext()->GetDocShell());
if (docShell) {
docShell->GetRecordProfileTimelineMarkers(&isTimelineRecording);
}
// Create a ReframingStyleContexts struct on the stack and put it in our
// mReframingStyleContexts for almost all of the remaining scope of
// this function.
//
// It needs to be *in* scope during BeginProcessingRestyles, which
// might (if mDoRebuildAllStyleData is true) do substantial amounts of
// restyle processing.
//
// However, it needs to be *out* of scope during
// EndProcessingRestyles, since we should release the style contexts
// it holds prior to any EndReconstruct call that
// EndProcessingRestyles makes. This is because in EndReconstruct we
// try to destroy the old rule tree using the GC mechanism, which
// means it only gets destroyed if it's unreferenced (and if it's
// referenced, we assert). So we want the ReframingStyleContexts
// (which holds old style contexts) to be destroyed before the
// EndReconstruct so those style contexts go away before
// EndReconstruct.
{
RestyleManager::ReframingStyleContexts
reframingStyleContexts(mRestyleManager);
mRestyleManager->BeginProcessingRestyles(*this);
LOG_RESTYLE("Processing %d pending %srestyles with %d restyle roots for %s",
mPendingRestyles.Count(),
mRestyleManager->PresContext()->TransitionManager()->
InAnimationOnlyStyleUpdate()
? (const char*) "animation " : (const char*) "",
static_cast<int>(mRestyleRoots.Length()),
GetDocumentURI(Document()).get());
LOG_RESTYLE_INDENT();
// loop so that we process any restyle events generated by processing
while (mPendingRestyles.Count()) {
if (mHaveLaterSiblingRestyles) {
// Convert them to individual restyles on all the later siblings
nsAutoTArray<nsRefPtr<Element>, RESTYLE_ARRAY_STACKSIZE> laterSiblingArr;
LaterSiblingCollector siblingCollector = { this, &laterSiblingArr };
mPendingRestyles.Enumerate(CollectLaterSiblings, &siblingCollector);
for (uint32_t i = 0; i < laterSiblingArr.Length(); ++i) {
Element* element = laterSiblingArr[i];
for (nsIContent* sibling = element->GetNextSibling();
sibling;
sibling = sibling->GetNextSibling()) {
if (sibling->IsElement()) {
LOG_RESTYLE("adding pending restyle for %s due to "
"eRestyle_LaterSiblings hint on %s",
FrameTagToString(sibling->AsElement()).get(),
FrameTagToString(element->AsElement()).get());
if (AddPendingRestyle(sibling->AsElement(), eRestyle_Subtree,
NS_STYLE_HINT_NONE)) {
// Nothing else to do here; we'll handle the following
// siblings when we get to |sibling| in laterSiblingArr.
break;
}
}
}
}
// Now remove all those eRestyle_LaterSiblings bits
for (uint32_t i = 0; i < laterSiblingArr.Length(); ++i) {
Element* element = laterSiblingArr[i];
NS_ASSERTION(element->HasFlag(RestyleBit()), "How did that happen?");
RestyleData* data;
#ifdef DEBUG
bool found =
#endif
mPendingRestyles.Get(element, &data);
NS_ASSERTION(found, "Where did our entry go?");
data->mRestyleHint =
nsRestyleHint(data->mRestyleHint & ~eRestyle_LaterSiblings);
}
LOG_RESTYLE("%d pending restyles after expanding out "
"eRestyle_LaterSiblings", mPendingRestyles.Count());
mHaveLaterSiblingRestyles = false;
}
uint32_t rootCount;
while ((rootCount = mRestyleRoots.Length())) {
// Make sure to pop the element off our restyle root array, so
// that we can freely append to the array as we process this
// element.
nsRefPtr<Element> element;
element.swap(mRestyleRoots[rootCount - 1]);
mRestyleRoots.RemoveElementAt(rootCount - 1);
LOG_RESTYLE("processing style root %s at index %d",
FrameTagToString(element).get(), rootCount - 1);
LOG_RESTYLE_INDENT();
// Do the document check before calling GetRestyleData, since we
// don't want to do the sibling-processing GetRestyleData does if
// the node is no longer relevant.
if (element->GetCrossShadowCurrentDoc() != Document()) {
// Content node has been removed from our document; nothing else
// to do here
LOG_RESTYLE("skipping, no longer in the document");
continue;
}
nsAutoPtr<RestyleData> data;
if (!GetRestyleData(element, data)) {
LOG_RESTYLE("skipping, already restyled");
continue;
}
if (isTimelineRecording) {
mozilla::UniquePtr<TimelineMarker> marker =
MakeUnique<RestyleTimelineMarker>(docShell,
TRACING_INTERVAL_START,
data->mRestyleHint);
docShell->AddProfileTimelineMarker(Move(marker));
}
#if defined(MOZ_ENABLE_PROFILER_SPS) && !defined(MOZILLA_XPCOMRT_API)
Maybe<GeckoProfilerTracingRAII> profilerRAII;
if (profiler_feature_active("restyle")) {
profilerRAII.emplace("Paint", "Styles", Move(data->mBacktrace));
}
#endif
ProcessOneRestyle(element, data->mRestyleHint, data->mChangeHint);
AddRestyleRootsIfAwaitingRestyle(data->mDescendants);
if (isTimelineRecording) {
mozilla::UniquePtr<TimelineMarker> marker =
MakeUnique<RestyleTimelineMarker>(docShell,
TRACING_INTERVAL_END,
data->mRestyleHint);
docShell->AddProfileTimelineMarker(Move(marker));
}
}
if (mHaveLaterSiblingRestyles) {
// Keep processing restyles for now
continue;
}
// Now we only have entries with change hints left. To be safe in
// case of reentry from the handing of the change hint, use a
// scratch array instead of calling out to ProcessOneRestyle while
// enumerating the hashtable. Use the stack if we can, otherwise
// fall back on heap-allocation.
nsAutoTArray<RestyleEnumerateData, RESTYLE_ARRAY_STACKSIZE> restyleArr;
RestyleEnumerateData* restylesToProcess =
restyleArr.AppendElements(mPendingRestyles.Count());
if (restylesToProcess) {
RestyleEnumerateData* lastRestyle = restylesToProcess;
RestyleCollector collector = { this, &lastRestyle };
mPendingRestyles.Enumerate(CollectRestyles, &collector);
// Clear the hashtable now that we don't need it anymore
mPendingRestyles.Clear();
#ifdef RESTYLE_LOGGING
uint32_t index = 0;
#endif
for (RestyleEnumerateData* currentRestyle = restylesToProcess;
currentRestyle != lastRestyle;
++currentRestyle) {
LOG_RESTYLE("processing pending restyle %s at index %d/%d",
FrameTagToString(currentRestyle->mElement).get(),
index++, collector.count);
LOG_RESTYLE_INDENT();
#if defined(MOZ_ENABLE_PROFILER_SPS) && !defined(MOZILLA_XPCOMRT_API)
Maybe<GeckoProfilerTracingRAII> profilerRAII;
if (profiler_feature_active("restyle")) {
profilerRAII.emplace("Paint", "Styles", Move(currentRestyle->mBacktrace));
}
#endif
if (isTimelineRecording) {
mozilla::UniquePtr<TimelineMarker> marker =
MakeUnique<RestyleTimelineMarker>(docShell,
TRACING_INTERVAL_START,
currentRestyle->mRestyleHint);
docShell->AddProfileTimelineMarker(Move(marker));
}
ProcessOneRestyle(currentRestyle->mElement,
currentRestyle->mRestyleHint,
currentRestyle->mChangeHint);
if (isTimelineRecording) {
mozilla::UniquePtr<TimelineMarker> marker =
MakeUnique<RestyleTimelineMarker>(docShell,
TRACING_INTERVAL_END,
currentRestyle->mRestyleHint);
docShell->AddProfileTimelineMarker(Move(marker));
}
}
}
}
}
mRestyleManager->EndProcessingRestyles();
}
