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pub mod entity;
pub mod error;
pub mod raft;
pub mod sender;
pub mod server;
pub mod state_machine;
pub mod storage;
#[macro_use]
extern crate thiserror;

pub fn current_millis() -> u64 {
    use std::time::{SystemTime, UNIX_EPOCH};
    let start = SystemTime::now();
    let since_the_epoch = start.duration_since(UNIX_EPOCH).unwrap();
    let ms = since_the_epoch.as_secs() as u64 * 1000u64
        + (since_the_epoch.subsec_nanos() as f64 / 1_000_000.0) as u64;
    ms
}

//it copy by async-std::utils;
/// Defers evaluation of a block of code until the end of the scope.
#[cfg(feature = "default")]
#[doc(hidden)]
macro_rules! defer {
    ($($body:tt)*) => {
        let _guard = {
            pub struct Guard<F: FnOnce()>(Option<F>);

            impl<F: FnOnce()> Drop for Guard<F> {
                fn drop(&mut self) {
                    (self.0).take().map(|f| f());
                }
            }

            Guard(Some(|| {
                let _ = { $($body)* };
            }))
        };
    };
}

#[test]
fn test_current_millis() {
    log::info!("{}", current_millis());
}