// Create object groups for DOM tree nodes.
void V8GCController::gcPrologue()
{
v8::HandleScope scope;
#ifndef NDEBUG
DOMObjectVisitor domObjectVisitor;
visitDOMObjects(&domObjectVisitor);
#endif
// Run through all objects with possible pending activity making their
// wrappers non weak if there is pending activity.
GCPrologueVisitor<void, SpecialCasePrologueObjectHandler> prologueObjectVisitor;
visitActiveDOMObjects(&prologueObjectVisitor);
GCPrologueVisitor<Node, SpecialCasePrologueNodeHandler> prologueNodeVisitor;
visitActiveDOMNodes(&prologueNodeVisitor);
// Create object groups.
GrouperVisitor grouperVisitor;
visitDOMNodes(&grouperVisitor);
visitActiveDOMNodes(&grouperVisitor);
visitDOMObjects(&grouperVisitor);
grouperVisitor.applyGrouping();
// Clean single element cache for string conversions.
V8BindingPerIsolateData* data = V8BindingPerIsolateData::current();
data->stringCache()->clearOnGC();
}
void V8GCController::gcEpilogue()
{
v8::HandleScope scope;
// Run through all objects with pending activity making their wrappers weak
// again.
GCEpilogueVisitor epilogueVisitor;
visitActiveDOMObjects(&epilogueVisitor);
workingSetEstimateMB = getActualMemoryUsageInMB();
#ifndef NDEBUG
// Check all survivals are weak.
DOMObjectVisitor domObjectVisitor;
visitDOMObjects(&domObjectVisitor);
EnsureWeakDOMNodeVisitor weakDOMNodeVisitor;
visitDOMNodes(&weakDOMNodeVisitor);
enumerateGlobalHandles();
#endif
}