let mut locks = unsafe { LOCKS.as_ref() }.unwrap().lock().unwrap();
match locks.entry(lock_constr_location) {
hash_map::Entry::Occupied(e) => {
let mut locks = unsafe { LOCKS.as_ref() }.unwrap().lock().unwrap();
match locks.entry(lock_constr_location) {
hash_map::Entry::Occupied(e) => {