public void Clear()
{
lockSlim.EnterWriteLock();
var oldFirst = _first;
//var oldRear = _rear;
_first = null;
_rear = null;
count = 0;
lockSlim.ExitWriteLock();
ThreadPool.QueueUserWorkItem((o) =>
{
var tempNode = (LinkNodeEx <T>)o;
LinkNodeEx <T> t1 = null;
while (tempNode != null)
{
t1 = tempNode;
tempNode = tempNode.Next;
t1.Release();
}
}, oldFirst);
notifyChanged(NotifyCollectionChangedAction.Reset, null);
}
private void removeNode(LinkNodeEx <T> node, bool isRelease = true)
{
if (_first == null || node.Link != this)
{
return;
}
if (node.Previous == null && node.Next == null)
{
_first = null;
_rear = null;
}
else if (node.Previous == null) //如果需要移除的是首项值
{
_first.Next.Previous = null;
_first = node.Next;
}
else if (node.Next == null)
{
_rear.Previous.Next = null;
_rear = node.Previous;
}
else
{
node.Previous.Next = node.Next;
node.Next.Previous = node.Previous;
}
if (isRelease)
{
node.Release();
}
Interlocked.Decrement(ref count);
notifyChanged(NotifyCollectionChangedAction.Remove, node);
if (node is IRecyclable)
{
node.Dispose();
}
}
