static PLDHashOperator
TraceActiveWindowGlobal(const uint64_t& aId, nsGlobalWindow*& aWindow, void* aClosure)
{
if (aWindow->GetDocShell() && aWindow->IsOuterWindow()) {
TraceClosure* closure = static_cast<TraceClosure*>(aClosure);
aWindow->TraceGlobalJSObject(closure->mTrc);
#ifdef MOZ_XUL
nsIDocument* doc = aWindow->GetExtantDoc();
if (doc && doc->IsXUL()) {
XULDocument* xulDoc = static_cast<XULDocument*>(doc);
xulDoc->TraceProtos(closure->mTrc, closure->mGCNumber);
}
#endif
}
return PL_DHASH_NEXT;
}
void
mozilla::dom::TraceBlackJS(JSTracer* aTrc, bool aIsShutdownGC)
{
#ifdef MOZ_XUL
// Mark the scripts held in the XULPrototypeCache. This is required to keep
// the JS script in the cache live across GC.
nsXULPrototypeCache* cache = nsXULPrototypeCache::MaybeGetInstance();
if (cache) {
if (aIsShutdownGC) {
cache->FlushScripts();
} else {
cache->MarkInGC(aTrc);
}
}
#endif
if (!nsCCUncollectableMarker::sGeneration) {
return;
}
if (ContentProcessMessageManager::WasCreated() &&
nsFrameMessageManager::GetChildProcessManager()) {
auto* pg = ContentProcessMessageManager::Get();
if (pg) {
mozilla::TraceScriptHolder(ToSupports(pg), aTrc);
}
}
// Mark globals of active windows black.
nsGlobalWindowOuter::OuterWindowByIdTable* windowsById =
nsGlobalWindowOuter::GetWindowsTable();
if (windowsById) {
for (auto iter = windowsById->Iter(); !iter.Done(); iter.Next()) {
nsGlobalWindowOuter* window = iter.Data();
if (!window->IsCleanedUp()) {
nsGlobalWindowInner* inner = nullptr;
for (PRCList* win = PR_LIST_HEAD(window);
win != window;
win = PR_NEXT_LINK(inner)) {
inner = static_cast<nsGlobalWindowInner*>(win);
if (inner->IsCurrentInnerWindow() ||
(inner->GetExtantDoc() &&
inner->GetExtantDoc()->GetBFCacheEntry())) {
inner->TraceGlobalJSObject(aTrc);
EventListenerManager* elm = inner->GetExistingListenerManager();
if (elm) {
elm->TraceListeners(aTrc);
}
}
}
if (window->IsRootOuterWindow()) {
// In child process trace all the TabChildMessageManagers.
// Since there is one root outer window per TabChildMessageManager, we need
// to look for only those windows, not all.
nsIDocShell* ds = window->GetDocShell();
if (ds) {
nsCOMPtr<nsITabChild> tabChild = ds->GetTabChild();
if (tabChild) {
RefPtr<ContentFrameMessageManager> mm;
tabChild->GetMessageManager(getter_AddRefs(mm));
if (mm) {
nsCOMPtr<nsISupports> tabChildAsSupports =
do_QueryInterface(tabChild);
mozilla::TraceScriptHolder(tabChildAsSupports, aTrc);
EventListenerManager* elm = mm->GetExistingListenerManager();
if (elm) {
elm->TraceListeners(aTrc);
}
// As of now there isn't an easy way to trace message listeners.
}
}
}
}
#ifdef MOZ_XUL
nsIDocument* doc = window->GetExtantDoc();
if (doc && doc->IsXULDocument()) {
XULDocument* xulDoc = static_cast<XULDocument*>(doc);
xulDoc->TraceProtos(aTrc);
}
#endif
}
}
}
}
void
mozilla::dom::TraceBlackJS(JSTracer* aTrc, uint32_t aGCNumber, bool aIsShutdownGC)
{
#ifdef MOZ_XUL
// Mark the scripts held in the XULPrototypeCache. This is required to keep
// the JS script in the cache live across GC.
nsXULPrototypeCache* cache = nsXULPrototypeCache::MaybeGetInstance();
if (cache) {
if (aIsShutdownGC) {
cache->FlushScripts();
} else {
cache->MarkInGC(aTrc);
}
}
#endif
if (!nsCCUncollectableMarker::sGeneration) {
return;
}
if (nsFrameMessageManager::GetChildProcessManager()) {
nsIContentProcessMessageManager* pg = ProcessGlobal::Get();
if (pg) {
mozilla::TraceScriptHolder(pg, aTrc);
}
}
// Mark globals of active windows black.
nsGlobalWindow::WindowByIdTable* windowsById =
nsGlobalWindow::GetWindowsTable();
if (windowsById) {
for (auto iter = windowsById->Iter(); !iter.Done(); iter.Next()) {
nsGlobalWindow* window = iter.Data();
if (window->GetDocShell() && window->IsOuterWindow()) {
window->TraceGlobalJSObject(aTrc);
EventListenerManager* elm = window->GetExistingListenerManager();
if (elm) {
elm->TraceListeners(aTrc);
}
if (window->IsRootOuterWindow()) {
// In child process trace all the TabChildGlobals.
// Since there is one root outer window per TabChildGlobal, we need
// to look for only those windows, not all.
nsIDocShell* ds = window->GetDocShell();
if (ds) {
nsCOMPtr<nsITabChild> tabChild = ds->GetTabChild();
if (tabChild) {
nsCOMPtr<nsIContentFrameMessageManager> mm;
tabChild->GetMessageManager(getter_AddRefs(mm));
nsCOMPtr<EventTarget> et = do_QueryInterface(mm);
if (et) {
nsCOMPtr<nsISupports> tabChildAsSupports =
do_QueryInterface(tabChild);
mozilla::TraceScriptHolder(tabChildAsSupports, aTrc);
EventListenerManager* elm = et->GetExistingListenerManager();
if (elm) {
elm->TraceListeners(aTrc);
}
// As of now there isn't an easy way to trace message listeners.
}
}
}
}
#ifdef MOZ_XUL
nsIDocument* doc = window->GetExtantDoc();
if (doc && doc->IsXULDocument()) {
XULDocument* xulDoc = static_cast<XULDocument*>(doc);
xulDoc->TraceProtos(aTrc, aGCNumber);
}
#endif
}
}
}
}
