Method read

libs/hbb_common/src/config.rs:1597–1605

(key: &str)

impl UserDefaultConfig {
    fn read(key: &str) -> String {
        let mut cfg = USER_DEFAULT_CONFIG.write().unwrap();
        // we do so, because default config may changed in another process, but we don't sync it
        // but no need to read every time, give a small interval to avoid too many redundant read waste
        if cfg.1.elapsed() > Duration::from_secs(1) {
            *cfg = (Self::load(), Instant::now());
        }
        cfg.0.get(key)
    }

    pub fn load() -> UserDefaultConfig {
        Config::load_::<UserDefaultConfig>("_default")