add clone impls

src/connector.rs

@@ -2,7 +2,7 @@ use std::collections::VecDeque;
 use std::io;
 use std::net::SocketAddr;
 
-use futures::{Async, Future, Poll};
+use futures::{Async, Future, Poll, future::ok};
 use tokio;
 use tokio_tcp::{ConnectFuture, TcpStream};
 use tower_service::Service;
@@ -47,6 +47,18 @@ impl Connector {
 
         Connector { resolver }
     }
+
+    pub fn new_service<E>() -> impl Future<Item=Connector, Error=E> {
+        ok(Connector::new())
+    }
+}
+
+impl Clone for Connector {
+    fn clone(&self) -> Self {
+        Connector {
+            resolver: self.resolver.clone(),
+        }
+    }
 }
 
 impl Service for Connector {

src/service/fn_service.rs

@@ -34,6 +34,21 @@ where
     }
 }
 
+impl<F, Req, Resp, E, Fut> Clone for FnService<F, Req, Resp, E, Fut>
+where
+    F: Fn(Req) -> Fut + Clone,
+    Fut: IntoFuture<Item = Resp, Error = E>,
+{
+    fn clone(&self) -> Self {
+        FnService {
+            f: self.f.clone(),
+            req: marker::PhantomData,
+            resp: marker::PhantomData,
+            err: marker::PhantomData,
+        }
+    }
+}
+
 impl<F, Req, Resp, E, Fut> Service for FnService<F, Req, Resp, E, Fut>
 where
     F: Fn(Req) -> Fut,