add CloneableService

src/cloneable.rs

@@ -0,0 +1,42 @@
+use std::cell::RefCell;
+use std::rc::Rc;
+
+use futures::Poll;
+
+use super::service::Service;
+
+/// Service that allows to turn non-clone service to a service with `Clone` impl
+pub struct CloneableService<S: Service + 'static> {
+    service: Rc<RefCell<S>>,
+}
+
+impl<S: Service + 'static> CloneableService<S> {
+    pub fn new(service: S) -> Self {
+        Self {
+            service: Rc::new(RefCell::new(service)),
+        }
+    }
+}
+
+impl<S: Service + 'static> Clone for CloneableService<S> {
+    fn clone(&self) -> Self {
+        Self {
+            service: self.service.clone(),
+        }
+    }
+}
+
+impl<S: Service + 'static> Service for CloneableService<S> {
+    type Request = S::Request;
+    type Response = S::Response;
+    type Error = S::Error;
+    type Future = S::Future;
+
+    fn poll_ready(&mut self) -> Poll<(), Self::Error> {
+        self.service.borrow_mut().poll_ready()
+    }
+
+    fn call(&mut self, req: Self::Request) -> Self::Future {
+        self.service.borrow_mut().call(req)
+    }
+}

src/lib.rs

@@ -55,6 +55,7 @@ extern crate webpki;
 #[cfg(feature = "rust-tls")]
 extern crate webpki_roots;
 
+pub mod cloneable;
 pub mod connector;
 pub mod counter;
 pub mod framed;