Function RecRegisterStat

src/records/RecCore.cc:709–734

------------------------------------------------------------------------- RecRegisterStat -------------------------------------------------------------------------

// RecRegisterStat
//-------------------------------------------------------------------------
RecRecord *
RecRegisterStat(RecT rec_type, const char *name, RecDataT data_type, RecData data_default, RecPersistT persist_type)
{
  RecRecord *r = nullptr;

  ink_rwlock_wrlock(&g_records_rwlock);
  if ((r = register_record(rec_type, name, data_type, data_default, persist_type)) != nullptr) {
    // If the persistence type we found in the records hash is not the same as the persistence
    // type we are registering, then that means that it changed between the previous software
    // version and the current version. If the metric changed to non-persistent, reset to the
    // new default value.
    if ((r->stat_meta.persist_type == RECP_NULL || r->stat_meta.persist_type == RECP_PERSISTENT) &&
        persist_type == RECP_NON_PERSISTENT) {
      RecDebug(DL_Debug, "resetting default value for formerly persisted stat '%s'", r->name);
      RecDataSet(r->data_type, &(r->data), &(data_default));
    }

    r->stat_meta.persist_type = persist_type;
  } else {
    ink_assert(!"Can't register record!");
    RecDebug(DL_Warning, "failed to register '%s' record", name);
  }
  ink_rwlock_unlock(&g_records_rwlock);

  return r;
}

//-------------------------------------------------------------------------
// RecRegisterConfig