1#undef LOCK
 2#define LOCK		WL
 3
 4#undef UNLOCK
 5#define UNLOCK		WU
 6
 7#undef RLOCK
 8#define RLOCK		RL
 9
10#undef WLOCK
11#define WLOCK		WL
12
13#undef INIT
14#define INIT		RWI

 1#undef LOCK
 2#define LOCK		WL
 3
 4#undef UNLOCK
 5#define UNLOCK		WU
 6
 7#undef RLOCK
 8#define RLOCK		RL
 9
10#undef WLOCK
11#define WLOCK		WL
12
13#undef INIT
14#define INIT		RWI