isLocked property

Implementation

static FutureOr<bool> get isLocked async {
  // Web Locks API is unavailable for some reason, so proceed without it.
  if (!_locksAvailable()) {
    return false;
  }

  bool held = false;

  try {
    final locks = (await _getLocks().toDart) as JSArray;
    held =
        locks.toDart
            .map((e) => e?.dartify() as Map?)
            .any((e) => e?['name'] == 'mutex') ==
        true;
  } catch (e) {
    held = false;
  }

  return _guards['mutex']?.isLocked == true || held;
}