1#undef LOCK
 2#define LOCK		L
 3
 4#undef UNLOCK
 5#define UNLOCK		U
 6
 7#undef RLOCK
 8#undef WLOCK
 9
10#undef INIT
11#define INIT		SI

 1#undef LOCK
 2#define LOCK		L
 3
 4#undef UNLOCK
 5#define UNLOCK		U
 6
 7#undef RLOCK
 8#undef WLOCK
 9
10#undef INIT
11#define INIT		SI