Method state_hostdb_lookup

src/proxy/http/HttpSM.cc:2362–2398

///////////////////////////////////////////////////////////////////////// HttpSM::state_hostdb_lookup() /////////////////////////////////////////////////////////////////////////

//
//////////////////////////////////////////////////////////////////////////////
int
HttpSM::state_hostdb_lookup(int event, void *data)
{
  STATE_ENTER(&HttpSM::state_hostdb_lookup, event);

  switch (event) {
  case EVENT_HOST_DB_LOOKUP:
    pending_action = nullptr;
    process_hostdb_info(static_cast<HostDBRecord *>(data));
    call_transact_and_set_next_state(nullptr);
    break;
  case EVENT_SRV_LOOKUP: {
    pending_action = nullptr;
    process_srv_info(static_cast<HostDBRecord *>(data));

    char const              *host_name = t_state.dns_info.is_srv() ? t_state.dns_info.srv_hostname : t_state.dns_info.lookup_name;
    HostDBProcessor::Options opt;
    opt.port    = t_state.dns_info.is_srv() ? t_state.dns_info.srv_port : t_state.server_info.dst_addr.host_order_port();
    opt.flags   = (t_state.cache_info.directives.does_client_permit_dns_storing) ? HostDBProcessor::HOSTDB_DO_NOT_FORCE_DNS :
                                                                                   HostDBProcessor::HOSTDB_FORCE_DNS_RELOAD;
    opt.timeout = (t_state.api_txn_dns_timeout_value != -1) ? t_state.api_txn_dns_timeout_value : 0;
    opt.host_res_style =
      ats_host_res_from(_ua.get_txn()->get_netvc()->get_local_addr()->sa_family, t_state.txn_conf->host_res_data.order);

    pending_action = hostDBProcessor.getbyname_imm(this, (cb_process_result_pfn)&HttpSM::process_hostdb_info, host_name, 0, opt);
    if (pending_action.empty()) {
      call_transact_and_set_next_state(nullptr);
    }
  } break;
  case EVENT_HOST_DB_IP_REMOVED:
    ink_assert(!"Unexpected event from HostDB");
    break;
  default:
    ink_assert(!"Unexpected event");
  }
  return 0;
}

int
HttpSM::state_hostdb_reverse_lookup(int event, void *data)