Function RecCoreInit

src/records/RecCore.cc:197–258

------------------------------------------------------------------------- RecCoreInit -------------------------------------------------------------------------

// RecCoreInit
//-------------------------------------------------------------------------
int
RecCoreInit(Diags *_diags)
{
  if (g_initialized) {
    return REC_ERR_OKAY;
  }

  // set our diags
  RecSetDiags(_diags);

  // Initialize config file parsing data structures.
  RecConfigFileInit();

  g_num_records = 0;

  // initialize record array for our internal stats (this can be reallocated later)
  g_records = static_cast<RecRecord *>(ats_malloc(max_records_entries * sizeof(RecRecord)));

  // initialize record rwlock
  ink_rwlock_init(&g_records_rwlock);

  // read stats
  RecReadStatsFile();

  // read configs
  bool file_exists = true;

  ink_mutex_init(&g_rec_config_lock);

  g_rec_config_fpath = ats_stringdup(RecConfigReadConfigPath(nullptr, ts::filename::RECORDS));

  // Make sure there is no legacy file, if so we drop a BIG WARNING and fail.
  // This is to avoid issues with someone ignoring that we now use records.yaml
  swoc::file::path old_config{RecConfigReadConfigPath(nullptr, "records.config")};
  if (swoc::file::is_readable(old_config)) {
    RecLog(DL_Fatal,
           "**** Found a legacy config file (%s). Please remove it and migrate to the new YAML format before continuing. ****",
           old_config.c_str());
  }

  if (RecFileExists(g_rec_config_fpath) == REC_ERR_FAIL) {
    RecLog(DL_Warning, "Could not find '%s', system will run with defaults\n", ts::filename::RECORDS);
    file_exists = false;
  }

  if (file_exists) {
    auto err = RecReadYamlConfigFile();
    RecLog(DL_Note, "records parsing completed.");
    if (!err.empty()) {
      std::string text;
      RecLog(DL_Warning, "%s",
             swoc::bwprint(text, "We have found the following issues when reading the records node:\n {}", err).c_str());
    }
  } else {
    RecLog(DL_Note, "%s does not exist.", g_rec_config_fpath);
  }

  RecLog(DL_Note, "%s finished loading", std::string{g_rec_config_fpath}.c_str());