1044     OrderNode& target = GetNode(index);  in Use()  local
1046     if (! IsLockedNode(target))  in Use()
1049         Unlink(target);  in Use()
1054         target.nextIndex    = root.nextIndex;  in Use()
1055         target.prevIndex    = first.prevIndex;  in Use()
1065     OrderNode& target = GetNode(index);  in Unuse()  local
1067     if (! IsLockedNode(target))  in Unuse()
1070         Unlink(target);  in Unuse()
1076     target.prevIndex    = root.prevIndex;  in Unuse()
1077     target.nextIndex    = last.nextIndex;  in Unuse()
1086     OrderNode& target = GetNode(index);  in Lock()  local
1088     if (! IsLockedNode(target))  in Lock()
1091         Unlink(target);  in Lock()
1094         MarkLocked(target);  in Lock()
1103     OrderNode& target = GetNode(index);  in Unlock()  local
1105     if (IsLockedNode(target))  in Unlock()
1112         target.nextIndex    = root.nextIndex;  in Unlock()
1113         target.prevIndex    = first.prevIndex;  in Unlock()