1 #include <liblockdep/rwlock.h> 2 main(void)3void main(void) 4 { 5 pthread_rwlock_t a, b; 6 7 pthread_rwlock_init(&a, NULL); 8 pthread_rwlock_init(&b, NULL); 9 10 pthread_rwlock_wrlock(&a); 11 pthread_rwlock_rdlock(&b); 12 pthread_rwlock_wrlock(&a); 13 } 14