Function base::sys::unix::signal::register_signal_handler

pub unsafe fn register_signal_handler(
    num: c_int,
    handler: extern "C" fn(_: c_int)
) -> Result<()>

Registers handler as the signal handler of signum num.

Safety

This is considered unsafe because the given handler will be called asynchronously, interrupting whatever the thread was doing and therefore must only do async-signal-safe operations.