pthread_rwlock_wrlock
int pthread_rwlock_wrlock(pthread_rwlock_t *) __nonnull(1);
WR(stub_zero, pthread_rwlock_wrlock);
__strong_reference(_pthread_rwlock_wrlock, pthread_rwlock_wrlock);
#define _PROP_RWLOCK_WRLOCK(x) pthread_rwlock_wrlock(&(x))
pthread_rwlock_wrlock(&config->rwlock);