public LinkedRingBufferNode(LinkedRingBufferNode <A> previousNode, A item)
{
Item = item;
NextNode = null;
PreviousNode = previousNode;
if (previousNode != null)
{
previousNode.NextNode = this;
}
}
/// <summary>
/// Add item at the end of the buffer.
/// If capacity is reached the link to the oldest item is deleted.
/// </summary>
public void Add(T item)
{
lock (Synchro)
{
/* create node and set to last one */
var node = new LinkedRingBufferNode <T>(lastNode, item);
lastNode = node;
/* if it is the first node, the created is also the first */
if (firstNode == null)
{
firstNode = node;
}
/* check for capacity reach */
Count++;
if (Count > Capacity)
{
/* deleted all links to the current first so that its eventually gc collected */
Count = Capacity;
firstNode = firstNode.NextNode;
firstNode.PreviousNode = null;
}
}
}
