158     pub struct pthread_rwlock_t {
1012 pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = pthread_rwlock_t {
1503         attr: *mut crate::pthread_rwlock_t,  in pthread_rwlock_init()  argument
1508     pub fn pthread_rwlock_destroy(attr: *mut crate::pthread_rwlock_t) -> c_int;  in pthread_rwlock_destroy()
1511     pub fn pthread_rwlock_rdlock(attr: *mut crate::pthread_rwlock_t) -> c_int;  in pthread_rwlock_rdlock()
1514     pub fn pthread_rwlock_tryrdlock(attr: *mut crate::pthread_rwlock_t) -> c_int;  in pthread_rwlock_tryrdlock()
1518         attr: *mut crate::pthread_rwlock_t,  in pthread_rwlock_timedrdlock()  argument
1523     pub fn pthread_rwlock_wrlock(attr: *mut crate::pthread_rwlock_t) -> c_int;  in pthread_rwlock_wrlock()
1526     pub fn pthread_rwlock_trywrlock(attr: *mut crate::pthread_rwlock_t) -> c_int;  in pthread_rwlock_trywrlock()
1530         attr: *mut crate::pthread_rwlock_t,  in pthread_rwlock_timedwrlock()  argument
1535     pub fn pthread_rwlock_unlock(attr: *mut crate::pthread_rwlock_t) -> c_int;  in pthread_rwlock_unlock()