std::map CacheAllocatorConfig::serialize()

in cachelib/allocator/CacheAllocatorConfig.h [1019:1107]
83 lines of code
13 McCabe index (conditional complexity)

std::map<std::string, std::string> CacheAllocatorConfig<T>::serialize() const {
  std::map<std::string, std::string> configMap;

  configMap["size"] = std::to_string(size);
  configMap["cacheDir"] = cacheDir;
  configMap["posixShm"] = usePosixShm ? "set" : "empty";

  configMap["defaultAllocSizes"] = "";
  // Stringify std::set
  for (auto& elem : defaultAllocSizes) {
    if (configMap["defaultAllocSizes"] != "") {
      configMap["defaultAllocSizes"] += ", ";
    }
    configMap["defaultAllocSizes"] += std::to_string(elem);
  }
  configMap["disableFullCoredump"] = std::to_string(disableFullCoredump);
  configMap["dropNvmCacheOnShmNew"] = std::to_string(dropNvmCacheOnShmNew);
  configMap["trackRecentItemsForDump"] =
      std::to_string(trackRecentItemsForDump);
  configMap["poolResizeInterval"] = util::toString(poolResizeInterval);
  configMap["poolResizeSlabsPerIter"] = std::to_string(poolResizeSlabsPerIter);

  configMap["poolRebalanceInterval"] = util::toString(poolRebalanceInterval);
  configMap["trackTailHits"] = std::to_string(trackTailHits);
  // Stringify enum
  switch (memMonitorConfig.mode) {
  case MemoryMonitor::FreeMemory:
    configMap["memMonitorMode"] = "Free Memory";
    break;
  case MemoryMonitor::ResidentMemory:
    configMap["memMonitorMode"] = "Resident Memory";
    break;
  case MemoryMonitor::Disabled:
    configMap["memMonitorMode"] = "Disabled";
    break;
  default:
    configMap["memMonitorMode"] = "Unknown";
  }
  configMap["memMonitorInterval"] = util::toString(memMonitorInterval);
  configMap["memAdvisePercentPerIter"] =
      std::to_string(memMonitorConfig.maxAdvisePercentPerIter);
  configMap["memReclaimPercentPerIter"] =
      std::to_string(memMonitorConfig.maxReclaimPercentPerIter);
  configMap["memMaxAdvisePercent"] =
      std::to_string(memMonitorConfig.maxAdvisePercent);
  configMap["memLowerLimitGB"] = std::to_string(memMonitorConfig.lowerLimitGB);
  configMap["memUpperLimitGB"] = std::to_string(memMonitorConfig.upperLimitGB);
  configMap["reclaimRateLimitWindowSecs"] =
      std::to_string(memMonitorConfig.reclaimRateLimitWindowSecs.count());
  configMap["reaperInterval"] = util::toString(reaperInterval);
  configMap["mmReconfigureInterval"] = util::toString(mmReconfigureInterval);
  configMap["disableEviction"] = std::to_string(disableEviction);
  configMap["evictionSearchTries"] = std::to_string(evictionSearchTries);
  configMap["thresholdForConvertingToIOBuf"] =
      std::to_string(thresholdForConvertingToIOBuf);
  configMap["movingTries"] = std::to_string(movingTries);
  configMap["chainedItemsLockPower"] = std::to_string(chainedItemsLockPower);
  configMap["removeCb"] = removeCb ? "set" : "empty";
  configMap["nvmAP"] = nvmCacheAP ? "custom" : "empty";
  configMap["nvmAPRejectFirst"] = rejectFirstAPNumEntries ? "set" : "empty";
  configMap["moveCb"] = moveCb ? "set" : "empty";
  configMap["enableZeroedSlabAllocs"] = std::to_string(enableZeroedSlabAllocs);
  configMap["lockMemory"] = std::to_string(lockMemory);
  configMap["allocationClassSizeFactor"] =
      std::to_string(allocationClassSizeFactor);
  configMap["maxAllocationClassSize"] = std::to_string(maxAllocationClassSize);
  configMap["minAllocationClassSize"] = std::to_string(minAllocationClassSize);
  configMap["reduceFragmentationInAllocationClass"] =
      std::to_string(reduceFragmentationInAllocationClass);
  configMap["slabMemoryBaseAddr"] = stringifyAddr(slabMemoryBaseAddr);
  configMap["poolResizeStrategy"] =
      stringifyRebalanceStrategy(poolResizeStrategy);
  configMap["poolAdviseStrategy"] =
      stringifyRebalanceStrategy(poolAdviseStrategy);
  configMap["defaultPoolRebalanceStrategy"] =
      stringifyRebalanceStrategy(defaultPoolRebalanceStrategy);
  configMap["eventTracker"] = eventTracker ? "set" : "empty";
  configMap["nvmAdmissionMinTTL"] = std::to_string(nvmAdmissionMinTTL);
  mergeWithPrefix(configMap, throttleConfig.serialize(), "throttleConfig");
  mergeWithPrefix(configMap,
                  chainedItemAccessConfig.serialize(),
                  "chainedItemAccessConfig");
  mergeWithPrefix(configMap, accessConfig.serialize(), "accessConfig");
  mergeWithPrefix(configMap, reaperConfig.serialize(), "reaperConfig");
  if (nvmConfig)
    mergeWithPrefix(configMap, nvmConfig->serialize(), "nvmConfig");

  return configMap;
}