public void AddUnrepresentedKeyWithRecreateIfMissing(TWeakOwningKey weakOwningKey, Func <TSharedContained> toCreateIfMissing)
{
var newKeyHolderID = Guid.NewGuid();
var newKeyHolder = NewWeakOwningKeyLifeWatcher(mLock, IDToWeakOfOwningKey, newKeyHolderID);
lock (mLock)
{
if (PossibleRecovery.TryGetTarget(out var currentContained))
{
WeakOwningKeyToContained.Add(weakOwningKey, Tuple.Create(currentContained, newKeyHolder)); // can fail/grenade
IDToWeakOfOwningKey.Add(newKeyHolderID, new WeakReference <TWeakOwningKey>(weakOwningKey));
}
else
{
currentContained = toCreateIfMissing();
PossibleRecovery.SetTarget(currentContained);
WeakOwningKeyToContained.Add(weakOwningKey, Tuple.Create(currentContained, newKeyHolder)); // can fail/grenade
IDToWeakOfOwningKey.Add(newKeyHolderID, new WeakReference <TWeakOwningKey>(weakOwningKey));
}
}
}
public AddKeyResult AddKeyIfNotAlreadyPresentWithRecreateIfMissing(TWeakOwningKey weakOwningKey, Func <TSharedContained> toCreateIfMissing)
{
//var newKeyHolderID = Guid.NewGuid();
//var newKeyHolder = NewWeakOwningKeyLifeWatcher(mLock, IDToWeakOfOwningKey, newKeyHolderID);
lock (mLock)
{
if (PossibleRecovery.TryGetTarget(out var currentContained))
{
if (WeakOwningKeyToContained.TryGetValue(weakOwningKey, out var existing))
{ // already exists - do nothing
return(new AddKeyResult(addedWeakOwningKeyAsNew: false, createdIfMissing: false)); // one way or another, it was already there
}
else
{
var newKeyHolderID = Guid.NewGuid();
var newKeyHolder = NewWeakOwningKeyLifeWatcher(mLock, IDToWeakOfOwningKey, newKeyHolderID);
WeakOwningKeyToContained.Add(weakOwningKey, Tuple.Create(currentContained, newKeyHolder)); // should never fail - no existing
IDToWeakOfOwningKey.Add(newKeyHolderID, new WeakReference <TWeakOwningKey>(weakOwningKey));
return(new AddKeyResult(addedWeakOwningKeyAsNew: true, createdIfMissing: false));
}
}
else
{
if (WeakOwningKeyToContained.TryGetValue(weakOwningKey, out var existing))
{ // already exists - do nothing
throw new Exception("Contradiction - Recovery value doesn't exist but value slot does!");
}
else
{
currentContained = toCreateIfMissing();
PossibleRecovery.SetTarget(currentContained);
var newKeyHolderID = Guid.NewGuid();
var newKeyHolder = NewWeakOwningKeyLifeWatcher(mLock, IDToWeakOfOwningKey, newKeyHolderID);
WeakOwningKeyToContained.Add(weakOwningKey, Tuple.Create(currentContained, newKeyHolder)); // can fail/grenade
IDToWeakOfOwningKey.Add(newKeyHolderID, new WeakReference <TWeakOwningKey>(weakOwningKey));
return(new AddKeyResult(addedWeakOwningKeyAsNew: true, createdIfMissing: true));
}
}
/*
* if (PossibleRecovery.TryGetTarget(out var currentContained))
* {
* IDToWeakOfOwningKey.Add(newKeyHolderID, new WeakReference<TWeakOwningKey>(weakOwningKey));
*
*
* }
* else
* {
* IDToWeakOfOwningKey.Add(newKeyHolderID, new WeakReference<TWeakOwningKey>(weakOwningKey));
*
*
* currentContained = toCreateIfMissing();
* PossibleRecovery.SetTarget(currentContained);
* }
*
* if (WeakOwningKeyToContained.TryGetValue(weakOwningKey, out var existing))
* { // already exists
* WeakOwningKeyToContained.Remove()
* }
* else
* {
* WeakOwningKeyToContained.Add(weakOwningKey, Tuple.Create(currentContained, newKeyHolder));
* }
*/
}
}