general ways to do this: • sigwaitinfo (2), sigtimedwait (2), and sigwait (3) suspend execution until ... pause (2), sigsuspend (2), sigtimedwait (2), and sigwaitinfo (2). • File d…signal (2), rt_sigqueueinfo (2), sigaction (2), sigwaitinfo (2), psiginfo (3) sigset_t Include : . Alternatively ... sigpending (2), sigprocmask (2), sigsuspend (2), sigwaitinfo …following functions are present: sigqueue () sigtimedwait () sigwaitinfo () --- - _POSIX_REGEXP - _SC_REGEXP If this optionvalue 34 (rather than 32). • The sigwaitinfo (2), sigtimedwait (2), and sigwait (3) interfaces silentlylist in POSIX.1-2008)] sigsuspend() sigtimedwait() sigwait() sigwaitinfo() sleep() system() tcdrain() usleep() [POSIX.1-2001 only (function removed