Function set_user_signal

crates/stdlib/src/faulthandler.rs:1018–1028

(signum: usize, signal: UserSignal)

        }

        pub fn set_user_signal(signum: usize, signal: UserSignal) {
            let mut guard = USER_SIGNALS.lock();
            if guard.is_none() {
                *guard = Some(vec![UserSignal::default(); NSIG]);
            }
            if let Some(ref mut v) = *guard
                && signum < v.len()
            {
                v[signum] = signal;
            }
        }

        pub fn clear_user_signal(signum: usize) -> Option<UserSignal> {
            let mut guard = USER_SIGNALS.lock();