method ack

Source

void ack(int ackId) {
  ConnectionAckGroup findAckGroup;
  for (ConnectionAckGroup ackGroup in pendingAcks) {
    if (ackGroup.ackId == ackId) {
      findAckGroup = ackGroup;
      break;
    } else if (ackGroup.ackId < ackId) {
      findAckGroup = ackGroup;
    }
  }

  if (findAckGroup != null) {
    int ts = (new DateTime.now()).millisecondsSinceEpoch;
    do {
      ConnectionAckGroup ackGroup = pendingAcks.removeFirst();
      ackGroup.ackAll(ackId, ts);
      if (ackGroup == findAckGroup) {
        break;
      }
    } while (findAckGroup != null);
  }
}