Method insertFile

src/thundersvm/util/log.cpp:1700–1741

        }

        void TypedConfigurations::insertFile(Level level, const std::string& fullFilename) {
#if defined(ELPP_NO_LOG_TO_FILE)
            setValue(level, false, &m_toFileMap);
  ELPP_UNUSED(fullFilename);
  m_fileStreamMap.insert(std::make_pair(level, base::FileStreamPtr(nullptr)));
  return;
#endif
            std::string resolvedFilename = resolveFilename(fullFilename);
            if (resolvedFilename.empty()) {
                std::cerr << "Could not load empty file for logging, please re-check your configurations for level ["
                          << LevelHelper::convertToString(level) << "]";
            }
            std::string filePath = base::utils::File::extractPathFromFilename(resolvedFilename, base::consts::kFilePathSeperator);
            if (filePath.size() < resolvedFilename.size()) {
                base::utils::File::createPath(filePath);
            }
            auto create = [&](Level level) {
                base::LogStreamsReferenceMap::iterator filestreamIter = m_logStreamsReference->find(resolvedFilename);
                base::type::fstream_t* fs = nullptr;
                if (filestreamIter == m_logStreamsReference->end()) {
                    // We need a completely new stream, nothing to share with
                    fs = base::utils::File::newFileStream(resolvedFilename);
                    m_filenameMap.insert(std::make_pair(level, resolvedFilename));
                    m_fileStreamMap.insert(std::make_pair(level, base::FileStreamPtr(fs)));
                    m_logStreamsReference->insert(std::make_pair(resolvedFilename, base::FileStreamPtr(m_fileStreamMap.at(level))));
                } else {
                    // Woops! we have an existing one, share it!
                    m_filenameMap.insert(std::make_pair(level, filestreamIter->first));
                    m_fileStreamMap.insert(std::make_pair(level, base::FileStreamPtr(filestreamIter->second)));
                    fs = filestreamIter->second.get();
                }
                if (fs == nullptr) {
                    // We display bad file error from newFileStream()
                    ELPP_INTERNAL_ERROR("Setting [TO_FILE] of ["
                                                << LevelHelper::convertToString(level) << "] to FALSE", false);
                    setValue(level, false, &m_toFileMap);
                }
            };
            // If we dont have file conf for any level, create it for Level::Global first
            // otherwise create for specified level
            create(m_filenameMap.empty() && m_fileStreamMap.empty() ? Level::Global : level);
        }

        bool TypedConfigurations::unsafeValidateFileRolling(Level level, const PreRollOutCallback& preRollOutCallback) {
            base::type::fstream_t* fs = unsafeGetConfigByRef(level, &m_fileStreamMap, "fileStream").get();