public void Add( ListNode node )
{
lock( this )
{
node.Remove();
node.list = this;
node.prev = last;
if( first == null )
first = node;
else
last.next = node;
last = node;
}
}
public void Remove( ListNode node )
{
lock( this )
{
if( node.prev == null )
first = node.next;
else
node.prev.next = node.next;
if( node.next == null )
last = node.prev;
else
node.next.prev = node.prev;
node.list = null;
}
}
public void Add( ListNode node, ListNode newNode )
{
lock( this )
{
newNode.Remove();
newNode.list = this;
newNode.next = node.next;
newNode.prev = node;
if( node.next == null )
last = newNode;
else
node.next.prev = newNode;
node.next = newNode;
}
}
public void Replace( ListNode oldNode, ListNode newNode )
{
lock( this )
{
newNode.Remove();
newNode.list = this;
if( oldNode.prev == null )
first = newNode;
else
oldNode.prev.next = newNode;
if( oldNode.next == null )
last = newNode;
else
oldNode.next.prev = newNode;
newNode.prev = oldNode.prev;
newNode.next = oldNode.next;
}
}
public bool MoveNext()
{
if( curNode == null )
return false;
lock( list )
{
if( curNode == UNINITIALIZED )
{
curNode = list.GetFirst();
}
else
{
curNode = curNode.next;
while( curNode != null && curNode.list == null )
curNode = curNode.next;
}
}
return curNode != null;
}
public void Reset()
{
curNode = UNINITIALIZED;
}
public void Insert( ListNode node, ListNode newNode )
{
lock( this )
{
newNode.Remove();
newNode.list = this;
newNode.prev = node.prev;
newNode.next = node;
if( node.prev == null )
first = newNode;
else
node.prev.next = newNode;
node.prev = newNode;
}
}
public void Clear()
{
lock( this )
{
first = null;
last = null;
}
}
public void SetPrevious( ListNode node )
{
list.Insert( this, node );
}
public void SetNext( ListNode node )
{
list.Add( this, node );
}
