refactor(lib): convert to futures 0.2.0-beta (#1470)

examples/web_api.rs

@@ -4,14 +4,15 @@ extern crate hyper;
 extern crate pretty_env_logger;
 extern crate tokio;
 
-use futures::{Future, Stream};
+use futures::{Future, FutureExt, StreamExt};
+use futures::executor::spawn;
 use futures::future::lazy;
 use tokio::reactor::Handle;
 
 use hyper::{Body, Chunk, Client, Method, Request, Response, StatusCode};
 use hyper::server::{Http, Service};
 
-#[allow(unused)]
+#[allow(unused, deprecated)]
 use std::ascii::AsciiExt;
 
 static NOTFOUND: &[u8] = b"Not Found";
@@ -78,13 +79,15 @@ fn main() {
     pretty_env_logger::init();
     let addr = "127.0.0.1:1337".parse().unwrap();
 
-    tokio::run(lazy(move || {
+    tokio::runtime::run2(lazy(move |_| {
         let handle = Handle::current();
         let serve = Http::new().serve_addr(&addr, move || Ok(ResponseExamples(handle.clone()))).unwrap();
-        println!("Listening on http://{} with 1 thread.", serve.incoming_ref().local_addr());
+        println!("Listening on http://{}", serve.incoming_ref().local_addr());
 
-        serve.map_err(|_| ()).for_each(move |conn| {
-            tokio::spawn(conn.map(|_| ()).map_err(|err| println!("serve error: {:?}", err)))
-        })
+        serve.map_err(|err| panic!("server error {:?}", err)).for_each(move |conn| {
+            spawn(conn.recover(|err| {
+                println!("connection error: {:?}", err);
+            }))
+        }).map(|_| ())
     }));
 }