sigsuspend
sigsuspend(&omask);
int sigsuspend(const sigset_t *);
__strong_reference(_sigsuspend, sigsuspend);
sigsuspend(&emask);
sigsuspend(&s);
sigsuspend(&s);
sigsuspend(&mask);
sigsuspend(&ss);
struct sigsuspend_args sigsuspend;
status = sigsuspend (&suspender_mask);
(void) sigsuspend(&sigmask);
(void) sigsuspend(&sigmask);
(void) sigsuspend(&sigmask);
sigsuspend(&mask);
(void)sigsuspend(&oset);
sigsuspend(&zeromask);
sigsuspend(&osigset);
sigsuspend(&mask_orig);
sigsuspend(&emptyset);