Function response_is_retryable

src/proxy/http/HttpTransact.cc:397–436

}

inline static ParentRetry_t
response_is_retryable(HttpTransact::State *s, HTTPStatus response_code)
{
  if (!HttpTransact::is_response_valid(s, &s->hdr_info.server_response) || s->current.request_to != ResolveInfo::PARENT_PROXY) {
    return PARENT_RETRY_NONE;
  }
  if (s->response_action.handled) {
    return s->response_action.action.responseIsRetryable ? PARENT_RETRY_SIMPLE : PARENT_RETRY_NONE;
  }
  const url_mapping *mp = s->url_map.getMapping();
  if (mp && mp->strategy) {
    return mp->strategy->responseIsRetryable(s->state_machine->sm_id, s->current, response_code);
  }

  if (s->parent_params && !s->parent_result.response_is_retryable((ParentRetry_t)(s->parent_result.retry_type()), response_code)) {
    return PARENT_RETRY_NONE;
  }
  const unsigned int s_retry_type = retry_type(s);
  // If simple or both, check if code is simple-retryable and for retry attempts
  if ((s_retry_type & PARENT_RETRY_SIMPLE) && s->parent_result.response_is_retryable(PARENT_RETRY_SIMPLE, response_code) &&
      s->current.simple_retry_attempts < max_retries(s, PARENT_RETRY_SIMPLE)) {
    TxnDbg(dbg_ctl_http_trans, "saw parent retry simple first in trans");
    if (s->current.simple_retry_attempts < numParents(s)) {
      return PARENT_RETRY_SIMPLE;
    }
    return PARENT_RETRY_NONE;
  }
  // If unavailable or both, check if code is unavailable-retryable AND also not simple-retryable, then unavailable retry attempts
  if ((s_retry_type & PARENT_RETRY_UNAVAILABLE_SERVER) &&
      s->parent_result.response_is_retryable(PARENT_RETRY_UNAVAILABLE_SERVER, response_code) &&
      !s->parent_result.response_is_retryable(PARENT_RETRY_SIMPLE, response_code) &&
      s->current.unavailable_server_retry_attempts < max_retries(s, PARENT_RETRY_UNAVAILABLE_SERVER)) {
    TxnDbg(dbg_ctl_http_trans, "saw parent retry unavailable first in trans");
    if (s->current.unavailable_server_retry_attempts < numParents(s)) {
      return PARENT_RETRY_UNAVAILABLE_SERVER;
    }
    return PARENT_RETRY_NONE;
  }
  return PARENT_RETRY_NONE;
}

inline static void
simple_or_unavailable_server_retry(HttpTransact::State *s)