| 1056 | FastLock _lock; |
| 1057 | VRef<Node> _head, _tail; |
| 1058 | VRef<Node> pop() { |
| 1059 | VRef<Node> result = _head; |
| 1060 | if (_head->next.is_null()) { |
| 1061 | _head = _tail = vnull<Node>(); |
| 1062 | } else { |
| 1063 | _head = _head->next; |
| 1064 | } |
| 1065 | return result; |
| 1066 | } |
| 1067 | void push(VRef<Node> node) { |
| 1068 | node->next = vnull<Node>(); |
| 1069 | if (_tail.is_null()) { |