ITIMER_VIRTUAL
case ITIMER_VIRTUAL: s = "ITIMER_VIRTUAL"; break;
timerisset(&lwp->lwp_timer[ITIMER_VIRTUAL].it_value) &&
itimerdecr(&lwp->lwp_timer[ITIMER_VIRTUAL], usec) == 0) {
case ITIMER_VIRTUAL:
case ITIMER_VIRTUAL:
ttolwp(curthread)->lwp_timer[ITIMER_VIRTUAL] = aitv;
which = ITIMER_VIRTUAL;
which = ITIMER_VIRTUAL;
which = ITIMER_VIRTUAL;
which = ITIMER_VIRTUAL;