public static void SetFinalizerWorker(ref WeakRefTracker tracker, WeakRefTracker newVal) {
if (Interlocked.CompareExchange(ref tracker, newVal, null) != null) {
GC.SuppressFinalize(newVal);
}
}
bool IWeakReferenceable.SetWeakRef(WeakRefTracker value) {
return Interlocked.CompareExchange<WeakRefTracker>(ref _weakrefTracker, value, null) == null;
}
void IWeakReferenceable.SetFinalizer(WeakRefTracker value) {
_weakrefTracker = value;
}
bool IWeakReferenceable.SetWeakRef(WeakRefTracker value)
{
_tracker = value;
return(true);
}
void IWeakReferenceable.SetFinalizer(WeakRefTracker value)
{
((IWeakReferenceable)this).SetWeakRef(value);
}
bool IWeakReferenceable.SetWeakRef(WeakRefTracker obj0)
{
return(UserTypeOps.SetWeakRefHelper((IPythonObject)this, obj0));
}
void IWeakReferenceable.SetFinalizer(WeakRefTracker obj0)
{
UserTypeOps.SetFinalizerHelper((IPythonObject)this, obj0);
}
void IWeakReferenceable.SetFinalizer(WeakRefTracker value)
{
_tracker = value;
}
bool IWeakReferenceable.SetWeakRef(WeakRefTracker value) {
_tracker = value;
return true;
}
bool IWeakReferenceable.SetWeakRef(WeakRefTracker value)
{
dict[SymbolTable.WeakRef] = value;
return true;
}
void IWeakReferenceable.SetFinalizer(WeakRefTracker value)
{
((IWeakReferenceable)this).SetWeakRef(value);
}
private void ClearFinalizer()
{
if (weakRef == null) return;
WeakRefTracker wrt = weakRef;
if (wrt != null) {
// find our handler and remove it (other users could have created weak refs to us)
for (int i = 0; i < wrt.HandlerCount; i++) {
if (wrt.GetHandlerCallback(i) is InstanceFinalizer) {
wrt.RemoveHandlerAt(i);
break;
}
}
// we removed the last handler
if (wrt.HandlerCount == 0) {
GC.SuppressFinalize(wrt);
weakRef = null;
}
}
}
private void AddFinalizer()
{
InstanceFinalizer oif = new InstanceFinalizer(this);
weakRef = new WeakRefTracker(oif, oif);
}
bool IWeakReferenceable.SetWeakRef(WeakRefTracker value)
{
return(Interlocked.CompareExchange(ref _tracker, value, null) == null);
}
