Function LockTagHashCode

src/backend/storage/lmgr/lock.c:569–573

* Compute the hash code associated with a LOCKTAG. * * To avoid unnecessary recomputations of the hash code, we try to do this * just once per function, and then pass it around as needed. Aside from * passing the hashcode to hash_search_with_hash_value(), we can extract * the lock partition number from the hashcode. */

 * the lock partition number from the hashcode.
 */
uint32
LockTagHashCode(const LOCKTAG *locktag)
{
	return get_hash_value(LockMethodLockHash, (const void *) locktag);
}

/*
 * Compute the hash code associated with a PROCLOCKTAG.