LuaStackChecker* LuaStateAccess::getLuaStackChecker(lua_State* L)
{
ExtraLuaStateData* extra = (ExtraLuaStateData*)((char*)(L) - sizeof(ExtraLuaStateData));
if (extra->stackChecker == NULL)
{
OwningPtr<LuaStackChecker> stackChecker = LuaStackChecker::create();
LuaStateAccess_HeapObjectRefManipulator::incRefCounter(stackChecker);
extra->stackChecker = stackChecker.getRawPtr();
}
return (LuaStackChecker*) extra->stackChecker;
}
WeakPtr(const OwningPtr<T>& src) {
if (src.isValid()) {
ptr = src.getRawPtr();
#ifdef WEAK_PTR_HAS_EXTRA_PTR_TO_COUNTERS
heapObjectCounters = HeapObjectRefManipulator::getHeapObjectCounters(ptr);
#endif
HeapObjectRefManipulator::incWeakCounter(getHeapObjectCounters());
} else {
ptr = NULL;
#ifdef WEAK_PTR_HAS_EXTRA_PTR_TO_COUNTERS
heapObjectCounters = NULL;
#endif
}
}
OwningPtr<LuaStackChecker> LuaStateAccess::replaceLuaStackChecker(lua_State* L, OwningPtr<LuaStackChecker> newStackChecker)
{
ExtraLuaStateData* extra = (ExtraLuaStateData*)((char*)(L) - sizeof(ExtraLuaStateData));
OwningPtr<LuaStackChecker> oldStackChecker;
if (extra->stackChecker != NULL)
{
{
LuaStackChecker* p = (LuaStackChecker*) extra->stackChecker;
LuaStateAccess_HeapObjectRefManipulator::resetInitialOwnership(p);
oldStackChecker = OwningPtr<LuaStackChecker>(p);
// no decRefCounter, because OwningPtr takes given Ownerchip
}
LuaStateAccess_HeapObjectRefManipulator::incRefCounter(newStackChecker);
extra->stackChecker = newStackChecker.getRawPtr();
}
return oldStackChecker;
}