SI_MESGQ
case SI_MESGQ:
case SI_MESGQ:
case SI_MESGQ: s = "SI_MESGQ"; break;
mq_siginfo.si_code = SI_MESGQ;
mq_siginfo.si_code = SI_MESGQ;
mq_siginfo.si_code = SI_MESGQ;
case SI_MESGQ: