IUSAGE
if ((usagemask & (AUSAGE|IUSAGE)) == (AUSAGE|IUSAGE))
else if (usagemask & IUSAGE)
*usagemask |= AUSAGE | IUSAGE;
*usagemask |= IUSAGE;
if ((usagemask & (AUSAGE|IUSAGE)) == (AUSAGE|IUSAGE))
else if (usagemask & IUSAGE)
*usagemask |= AUSAGE | IUSAGE;
*usagemask |= IUSAGE;