ownerOf method

@override Future<String?> ownerOf(String key)

Returns the owner of the lock if it exists and has not expired.

Implementation

@override
/// Returns the owner of the lock if it exists and has not expired.
Future<String?> ownerOf(String key) async {
  final lock = _locks[key];
  if (lock == null) return null;
  if (lock.isExpired(stemNow())) {
    _locks.remove(key);
    return null;
  }
  return lock.owner;
}