1 #undef LOCK 2 #define LOCK WSL 3 4 #undef UNLOCK 5 #define UNLOCK WSU 6 7 #undef RLOCK 8 #define RLOCK RSL 9 10 #undef WLOCK 11 #define WLOCK WSL 12 13 #undef INIT 14 #define INIT RWSI 15