public T Read(Boolean store = false)
{
if (!store && !StoresEmpty)
{
isStored = true;
//Returning a backing store version requires that prev be valid
if (PrevBeforeStore != null)
{
Prev = PrevBeforeStore;
PrevBeforeStore = default(T);
}
else
{
Prev = Current;
}
Current = QPk.Dequeue();
Current.isStore = true;
if (BackingEmpty)
{
Stores.Pop();
}
return(Current);
}
else
{
isStored = false;
}
Prev = Current;
Current = ReadNext();
if (store)
{
/*if (Dirty)
* throw new Exception("Cannot store the read object because backing store was not empty.");*/
if (StoresEmpty)
{
NewBacking(null);
}
if (BackingEmpty)
{
PrevBeforeStore = Prev;
}
QPk.Enqueue(Current);
}
return(Current);
}
public void DiscardBackingStore(int count)
{
if (!StoresEmpty && count > QPk.Count)
{
throw new Exception("Attempted to pop off more than the size of the current backing!");
}
while (!StoresEmpty && !BackingEmpty && count-- > 0)
{
QPk.Dequeue();
}
if (!StoresEmpty && BackingEmpty)
{
Stores.Pop();
}
}