UB_PIPE
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
case UB_PIPE: return "error in pipe communication with async";
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
return UB_PIPE;
case UB_PIPE: return "error in pipe communication with async";