use std::io;
use futures::Future;
pub mod tcprelay;
pub mod udprelay;
pub mod local;
pub mod server;
mod loadbalancing;
mod dns_resolver;
pub mod socks5;
mod utils;
pub type BoxIoFuture<T> = Box<Future<Item = T, Error = io::Error>>;
fn boxed_future<T, E, F>(f: F) -> Box<Future<Item = T, Error = E>>
where F: Future<Item = T, Error = E> + 'static
{
Box::new(f)
}