226 if (this->data.find(_topic) != this->data.end())
228 if (this->data[_topic].find(_nUuid) != this->data[_topic].end())
230 counter = this->data[_topic][_nUuid].erase(_reqUuid);
231 if (this->data[_topic][_nUuid].empty())
232 this->data[_topic].erase(_nUuid);
233 if (this->data[_topic].empty())
234 this->data.erase(_topic);