void MqttConnection::s_onMultiSubAck()

in source/mqtt/MqttClient.cpp [177:211]
31 lines of code
4 McCabe index (conditional complexity)

            void MqttConnection::s_onMultiSubAck(
                aws_mqtt_client_connection *,
                uint16_t packetId,
                const struct aws_array_list *topicSubacks,
                int errorCode,
                void *userData)
            {
                auto callbackData = reinterpret_cast<MultiSubAckCallbackData *>(userData);

                if (callbackData->onSubAck)
                {
                    size_t length = aws_array_list_length(topicSubacks);
                    Vector<String> topics;
                    topics.reserve(length);
                    QOS qos = AWS_MQTT_QOS_AT_MOST_ONCE;
                    for (size_t i = 0; i < length; ++i)
                    {
                        aws_mqtt_topic_subscription *subscription = NULL;
                        aws_array_list_get_at(topicSubacks, &subscription, i);
                        topics.push_back(
                            String(reinterpret_cast<char *>(subscription->topic.ptr), subscription->topic.len));
                        qos = subscription->qos;
                    }

                    callbackData->onSubAck(*callbackData->connection, packetId, topics, qos, errorCode);
                }

                if (callbackData->topic)
                {
                    aws_mem_release(
                        callbackData->allocator, reinterpret_cast<void *>(const_cast<char *>(callbackData->topic)));
                }

                Crt::Delete(callbackData, callbackData->allocator);
            }