feat(lib): update Tokio, bytes, http, h2, and http-body

Cargo.toml

@@ -20,45 +20,37 @@ include = [
 ]
 
 [dependencies]
-bytes = "0.4.6"
-futures-core = "0.3.1"
-futures-channel = "0.3.1"
-futures-util = "0.3.1"
-http = "0.1.15"
-http-body = "=0.2.0-alpha.3"
+bytes = "0.5"
+futures-core = { version = "0.3", default-features = false }
+futures-channel = "0.3"
+futures-util = { version = "0.3", default-features = false }
+http = "0.2"
+http-body = "0.2"
 httparse = "1.0"
-h2 = "=0.2.0-alpha.3"
-iovec = "0.1"
+h2 = "0.2"
 itoa = "0.4.1"
 log = "0.4"
 pin-project = "0.4"
 time = "0.1"
 tower-service = "=0.3.0-alpha.2"
-tokio-executor = "=0.2.0-alpha.6"
-tokio-io = "=0.2.0-alpha.6"
-tokio-sync = "=0.2.0-alpha.6"
+tokio = { version = "0.2", features = ["sync"] }
 want = "0.3"
 
 # Optional
 
 net2 = { version = "0.2.32", optional = true }
-tokio = { version = "=0.2.0-alpha.6", optional = true, default-features = false, features = ["rt-full"] }
-tokio-net = { version = "=0.2.0-alpha.6", optional = true, features = ["tcp"] }
-tokio-timer = { version = "=0.3.0-alpha.6", optional = true }
-
 
 [dev-dependencies]
-futures-util-a19 = { version = "=0.3.0-alpha.19", package = "futures-util-preview" }
+futures-util = { version = "0.3", default-features = false, features = ["alloc"] }
 matches = "0.1"
 num_cpus = "1.0"
 pretty_env_logger = "0.3"
 spmc = "0.3"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
-tokio = "=0.2.0-alpha.6" # using #[tokio::test] attributes
-tokio-fs = "=0.2.0-alpha.6"
-tokio-test = "=0.2.0-alpha.6"
+tokio = { version = "0.2.2", features = ["fs", "macros", "rt-util", "sync", "time", "test-util"] }
+tokio-test = "0.2"
 url = "1.0"
 
 [features]
@@ -68,13 +60,13 @@ default = [
 ]
 runtime = [
     "tcp",
-    "tokio",
+    "tokio/time",
 ]
 tcp = [
     "net2",
-    "tokio-executor/blocking",
-    "tokio-net",
-    "tokio-timer",
+    "tokio/blocking",
+    "tokio/tcp",
+    "tokio/time",
 ]
 
 # unstable features
@@ -206,3 +198,4 @@ required-features = ["runtime", "unstable-stream"]
 name = "server"
 path = "tests/server.rs"
 required-features = ["runtime"]
+

benches/connect.rs

@@ -3,17 +3,21 @@
 
 extern crate test;
 
+use std::net::SocketAddr;
 use tokio::net::TcpListener;
-use tokio::runtime::current_thread::Runtime;
 use hyper::client::connect::{Destination, HttpConnector};
 use hyper::service::Service;
 use http::Uri;
 
 #[bench]
 fn http_connector(b: &mut test::Bencher) {
     let _ = pretty_env_logger::try_init();
-    let mut rt = Runtime::new().unwrap();
-    let mut listener = rt.block_on(TcpListener::bind("127.0.0.1:0")).expect("bind");
+    let mut rt = tokio::runtime::Builder::new()
+        .enable_all()
+        .basic_scheduler()
+        .build()
+        .expect("rt build");
+    let mut listener = rt.block_on(TcpListener::bind(&SocketAddr::from(([127, 0, 0, 1], 0)))).expect("bind");
     let addr = listener.local_addr().expect("local_addr");
     let uri: Uri = format!("http://{}/", addr).parse().expect("uri parse");
     let dst = Destination::try_from_uri(uri).expect("destination");

benches/end_to_end.rs

@@ -6,9 +6,8 @@ extern crate test;
 use std::net::SocketAddr;
 
 use futures_util::future::join_all;
-use tokio::runtime::current_thread::Runtime;
 
-use hyper::{Body, Method, Request, Response, Server};
+use hyper::{body::HttpBody as _, Body, Method, Request, Response, Server};
 use hyper::client::HttpConnector;
 
 // HTTP1
@@ -264,8 +263,12 @@ impl Opts {
     fn bench(self, b: &mut test::Bencher) {
         let _ = pretty_env_logger::try_init();
         // Create a runtime of current thread.
-        let mut rt = Runtime::new().unwrap();
-        let exec = rt.handle();
+        let mut rt = tokio::runtime::Builder::new()
+            .enable_all()
+            .basic_scheduler()
+            .build()
+            .expect("rt build");
+        let exec = rt.handle().clone();
 
         let req_len = self.request_body.map(|b| b.len()).unwrap_or(0) as u64;
         let req_len = if self.request_chunks > 0 {
@@ -297,7 +300,7 @@ impl Opts {
                     for _ in 0..chunk_cnt {
                         tx.send_data(chunk.into()).await.expect("send_data");
                     }
-                }).expect("body tx spawn");
+                });
                 body
             } else {
                 self
@@ -340,22 +343,24 @@ impl Opts {
     }
 }
 
-fn spawn_server(rt: &mut Runtime, opts: &Opts) -> SocketAddr {
+fn spawn_server(rt: &mut tokio::runtime::Runtime, opts: &Opts) -> SocketAddr {
     use hyper::service::{make_service_fn, service_fn};
     let addr = "127.0.0.1:0".parse().unwrap();
 
     let body = opts.response_body;
-    let srv = Server::bind(&addr)
-        .http2_only(opts.http2)
-        .http2_initial_stream_window_size(opts.http2_stream_window)
-        .http2_initial_connection_window_size(opts.http2_conn_window)
-        .serve(make_service_fn( move |_| async move {
-            Ok::<_, hyper::Error>(service_fn(move |req: Request<Body>| async move {
-                let mut req_body = req.into_body();
-                while let Some(_chunk) = req_body.next().await {}
-                Ok::<_, hyper::Error>(Response::new(Body::from(body)))
+    let srv = rt.block_on(async move {
+        Server::bind(&addr)
+            .http2_only(opts.http2)
+            .http2_initial_stream_window_size(opts.http2_stream_window)
+            .http2_initial_connection_window_size(opts.http2_conn_window)
+            .serve(make_service_fn( move |_| async move {
+                Ok::<_, hyper::Error>(service_fn(move |req: Request<Body>| async move {
+                    let mut req_body = req.into_body();
+                    while let Some(_chunk) = req_body.next().await {}
+                    Ok::<_, hyper::Error>(Response::new(Body::from(body)))
+                }))
             }))
-        }));
+    });
     let addr = srv.local_addr();
     rt.spawn(async {
         if let Err(err) = srv.await {

benches/pipeline.rs

@@ -8,7 +8,6 @@ use std::net::{TcpStream};
 use std::sync::mpsc;
 use std::time::Duration;
 
-use tokio::runtime::current_thread;
 use tokio::sync::oneshot;
 
 use hyper::{Body, Response, Server};
@@ -31,9 +30,17 @@ fn hello_world(b: &mut test::Bencher) {
                     Ok::<_, hyper::Error>(Response::new(Body::from("Hello, World!")))
                 }))
             });
-            let srv = Server::bind(&addr)
-                .http1_pipeline_flush(true)
-                .serve(make_svc);
+
+            let mut rt = tokio::runtime::Builder::new()
+                .enable_all()
+                .basic_scheduler()
+                .build()
+                .expect("rt build");
+            let srv = rt.block_on(async move {
+                Server::bind(&addr)
+                    .http1_pipeline_flush(true)
+                    .serve(make_svc)
+            });
 
             addr_tx.send(srv.local_addr()).unwrap();
 
@@ -42,13 +49,11 @@ fn hello_world(b: &mut test::Bencher) {
                     until_rx.await.ok();
                 });
 
-            let mut rt = current_thread::Runtime::new().unwrap();
-            rt.spawn(async {
+            rt.block_on(async {
                 if let Err(e) = graceful.await {
                     panic!("server error: {}", e);
                 }
             });
-            rt.run().unwrap();
         });
 
         addr_rx.recv().unwrap()

benches/server.rs

@@ -9,7 +9,6 @@ use std::sync::mpsc;
 use std::time::Duration;
 
 use futures_util::{stream, StreamExt};
-use tokio::runtime::current_thread;
 use tokio::sync::oneshot;
 
 use hyper::{Body, Response, Server};
@@ -33,22 +32,29 @@ macro_rules! bench_server {
                         )
                     }))
                 });
-                let srv = Server::bind(&addr)
-                    .serve(make_svc);
+
+                let mut rt = tokio::runtime::Builder::new()
+                    .enable_all()
+                    .basic_scheduler()
+                    .build()
+                    .expect("rt build");
+
+                let srv = rt.block_on(async move {
+                    Server::bind(&addr)
+                        .serve(make_svc)
+                });
 
                 addr_tx.send(srv.local_addr()).unwrap();
 
                 let graceful = srv
                     .with_graceful_shutdown(async {
                         until_rx.await.ok();
                     });
-                let mut rt = current_thread::Runtime::new().unwrap();
-                rt.spawn(async {
+                rt.block_on(async move {
                     if let Err(e) = graceful.await {
                         panic!("server error: {}", e);
                     }
                 });
-                rt.run().unwrap();
             });
 
             addr_rx.recv().unwrap()

examples/client.rs

@@ -4,6 +4,7 @@ use std::env;
 use std::io::{self, Write};
 
 use hyper::Client;
+use futures_util::StreamExt;
 
 // A simple type alias so as to DRY.
 type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
@@ -24,7 +25,7 @@ async fn main() -> Result<()> {
     // HTTPS requires picking a TLS implementation, so give a better
     // warning if the user tries to request an 'https' URL.
     let url = url.parse::<hyper::Uri>().unwrap();
-    if url.scheme_part().map(|s| s.as_ref()) != Some("http") {
+    if url.scheme_str() != Some("http") {
         println!("This example only works with 'http' URLs.");
         return Ok(());
     }

examples/client_json.rs

@@ -5,7 +5,7 @@
 extern crate serde_derive;
 
 use hyper::Client;
-use futures_util::TryStreamExt;
+use futures_util::StreamExt;
 
 // A simple type alias so as to DRY.
 type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
@@ -27,9 +27,12 @@ async fn fetch_json(url: hyper::Uri) -> Result<Vec<User>> {
     let client = Client::new();
 
     // Fetch the url...
-    let res = client.get(url).await?;
+    let mut res = client.get(url).await?;
     // asynchronously concatenate chunks of the body
-    let body = res.into_body().try_concat().await?;
+    let mut body = Vec::new();
+    while let Some(chunk) = res.body_mut().next().await {
+        body.extend_from_slice(&chunk?);
+    }
     // try to parse as json with serde_json
     let users = serde_json::from_slice(&body)?;
 

examples/echo.rs

@@ -2,12 +2,11 @@
 
 use hyper::{Body, Method, Request, Response, Server, StatusCode};
 use hyper::service::{make_service_fn, service_fn};
-use futures_util::TryStreamExt;
+use futures_util::{StreamExt, TryStreamExt};
 
 /// This is our service handler. It receives a Request, routes on its
 /// path, and returns a Future of a Response.
-async fn echo(req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
-
+async fn echo(mut req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
     match (req.method(), req.uri().path()) {
         // Serve some instructions at /
         (&Method::GET, "/") => {
@@ -37,13 +36,17 @@ async fn echo(req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
         // So here we do `.await` on the future, waiting on concatenating the full body,
         // then afterwards the content can be reversed. Only then can we return a `Response`.
         (&Method::POST, "/echo/reversed") => {
-            let whole_chunk = req.into_body().try_concat().await;
-
-            let reversed_chunk = whole_chunk.map(move |chunk| {
-                chunk.iter().rev().cloned().collect::<Vec<u8>>()
-
-            })?;
-            Ok(Response::new(Body::from(reversed_chunk)))
+            let mut whole_body = Vec::new();
+            while let Some(chunk) = req.body_mut().next().await {
+                whole_body.extend_from_slice(&chunk?);
+            }
+
+            let reversed_body = whole_body
+                .iter()
+                .rev()
+                .cloned()
+                .collect::<Vec<u8>>();
+            Ok(Response::new(Body::from(reversed_body)))
         }
 
         // Return the 404 Not Found for other routes.

examples/params.rs

@@ -6,20 +6,24 @@ use hyper::service::{service_fn, make_service_fn};
 
 use std::collections::HashMap;
 use url::form_urlencoded;
-use futures_util::TryStreamExt;
+use futures_util::StreamExt;
 
 static INDEX: &[u8] = b"<html><body><form action=\"post\" method=\"post\">Name: <input type=\"text\" name=\"name\"><br>Number: <input type=\"text\" name=\"number\"><br><input type=\"submit\"></body></html>";
 static MISSING: &[u8] = b"Missing field";
 static NOTNUMERIC: &[u8] = b"Number field is not numeric";
 
 // Using service_fn, we can turn this function into a `Service`.
-async fn param_example(req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
+async fn param_example(mut req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
     match (req.method(), req.uri().path()) {
         (&Method::GET, "/") | (&Method::GET, "/post") => {
             Ok(Response::new(INDEX.into()))
         },
         (&Method::POST, "/post") => {
-            let b = req.into_body().try_concat().await?;
+            // Concatenate the body...
+            let mut b = Vec::new();
+            while let Some(chunk) = req.body_mut().next().await {
+                b.extend_from_slice(&chunk?);
+            }
             // Parse the request body. form_urlencoded::parse
             // always succeeds, but in general parsing may
             // fail (for example, an invalid post of json), so

examples/send_file.rs

@@ -1,7 +1,7 @@
 #![deny(warnings)]
 
 use tokio::io::AsyncReadExt;
-use tokio_fs::File;
+use tokio::fs::File;
 
 use hyper::{Body, Method, Result, Request, Response, Server, StatusCode};
 use hyper::service::{make_service_fn, service_fn};