module GTPv1U_CodecPort_CtrlFunct {

  import from GTPv1U_CodecPort all;
  import from IPL4asp_Types all;

  external function f_GTPU_listen(
    inout GTPU_PT portRef,
    in HostName locName,
    in PortNumber locPort,
    in ProtoTuple proto,
    in OptionList options := {}
  ) return Result;
}
