public void Remove(ThreadQueueItem item)
{
VTable.Assert(item.Queue == this);
if (item.Next != null)
{
item.Next.Prev = item.Prev;
}
else
{
VTable.Assert(item == tail);
tail = item.Prev;
}
if (item.Prev != null)
{
item.Prev.Next = item.Next;
}
else
{
VTable.Assert(item == head);
head = item.Next;
}
item.Next = null;
item.Prev = null;
item.Queue = null;
}
public ThreadQueueItem Dequeue()
{
ThreadQueueItem item = head;
if (item != null)
{
Remove(item);
}
return(item);
}
public void Enqueue(ThreadQueueItem item)
{
VTable.Assert(item.Next == null);
VTable.Assert(item.Prev == null);
VTable.Assert(item.Queue == null);
item.Queue = this;
item.Prev = tail;
if (tail != null)
{
VTable.Assert(tail.Next == null);
tail.Next = item;
}
else
{
VTable.Assert(head == null);
head = item;
}
tail = item;
}