use std::{
net::SocketAddr,
time::{Duration, Instant},
};
pub fn busy_wait(f: impl Fn() -> Option<SocketAddr>) -> SocketAddr {
let mut socket_addr: Option<SocketAddr>;
let start = Instant::now();
loop {
socket_addr = f();
if socket_addr.is_some() {
break;
}
if start.elapsed() > Duration::from_millis(500) {
panic!("failed to connect within 500ms")
}
}
socket_addr.take().unwrap()
}