protected async Task RemoveCoreAsync(LinkedManifest manifest, string previousKey, LinkedNode <T> previousNode, string removeKey, LinkedNode <T> removeNode, CancellationToken cancellationToken)
{
if (previousNode != null)
{
previousNode.Next = removeNode.Next;
await StateManager.SetStateAsync(previousKey, previousNode, cancellationToken);
}
else
{
manifest.First = removeNode.Next;
}
if (removeNode.Next.HasValue)
{
var nextKey = IndexToKey(removeNode.Next.Value);
var nextNode = await StateManager.GetStateAsync <LinkedNode <T> >(nextKey, cancellationToken);
nextNode.Previous = removeNode.Previous;
await StateManager.SetStateAsync(nextKey, nextNode, cancellationToken);
}
else
{
manifest.Last = removeNode.Previous;
}
await StateManager.RemoveStateAsync(removeKey, cancellationToken);
manifest.Count--;
if (manifest.Count == 0)
{
manifest.Next = 0;
}
await StateManager.SetStateAsync(Name, manifest, cancellationToken);
}
protected static long NextIndex(LinkedManifest manifest)
{
return(manifest.Next++);
}
