feat(lib): remove stream cargo feature (#2896)

Closes #2855
hyperium · Jun 23, 2022 · ce72f73 · ce72f73
1 parent a563404
commit ce72f73
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Showing 14 changed files with 272 additions and 410 deletions.
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
@@ -144,7 +144,7 @@ jobs:
 
       - name: Test
         # Can't enable tcp feature since Miri does not support the tokio runtime
-        run: MIRIFLAGS="-Zmiri-disable-isolation" cargo miri test --features http1,http2,client,server,stream,nightly
+        run: MIRIFLAGS="-Zmiri-disable-isolation" cargo miri test --features http1,http2,client,server,nightly
 
   features:
     name: features

diff --git a/Cargo.toml b/Cargo.toml
@@ -27,7 +27,8 @@ 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 = "0.4"
+http-body = { git = "https://github.com/hyperium/http-body", branch = "master" }
+http-body-util = { git = "https://github.com/hyperium/http-body", branch = "master" }
 httpdate = "1.0"
 httparse = "1.6"
 h2 = { version = "0.3.9", optional = true }
@@ -80,7 +81,6 @@ full = [
     "http1",
     "http2",
     "server",
-    "stream",
     "runtime",
 ]
 
@@ -92,9 +92,6 @@ http2 = ["h2"]
 client = []
 server = []
 
-# `impl Stream` for things
-stream = []
-
 # Tokio support
 runtime = [
     "tcp",

diff --git a/benches/body.rs b/benches/body.rs
@@ -6,7 +6,7 @@ extern crate test;
 use bytes::Buf;
 use futures_util::stream;
 use futures_util::StreamExt;
-use hyper::body::Body;
+use http_body_util::StreamBody;
 
 macro_rules! bench_stream {
     ($bencher:ident, bytes: $bytes:expr, count: $count:expr, $total_ident:ident, $body_pat:pat, $block:expr) => {{
@@ -20,9 +20,10 @@ macro_rules! bench_stream {
 
         $bencher.iter(|| {
             rt.block_on(async {
-                let $body_pat = Body::wrap_stream(
+                let $body_pat = StreamBody::new(
                     stream::iter(__s.iter()).map(|&s| Ok::<_, std::convert::Infallible>(s)),
                 );
+
                 $block;
             });
         });

diff --git a/benches/server.rs b/benches/server.rs
@@ -9,10 +9,11 @@ use std::sync::mpsc;
 use std::time::Duration;
 
 use futures_util::{stream, StreamExt};
+use http_body_util::StreamBody;
 use tokio::sync::oneshot;
 
 use hyper::service::{make_service_fn, service_fn};
-use hyper::{Body, Response, Server};
+use hyper::{Response, Server};
 
 macro_rules! bench_server {
     ($b:ident, $header:expr, $body:expr) => {{
@@ -101,7 +102,7 @@ fn throughput_fixedsize_large_payload(b: &mut test::Bencher) {
 fn throughput_fixedsize_many_chunks(b: &mut test::Bencher) {
     bench_server!(b, ("content-length", "1000000"), || {
         static S: &[&[u8]] = &[&[b'x'; 1_000] as &[u8]; 1_000] as _;
-        Body::wrap_stream(stream::iter(S.iter()).map(|&s| Ok::<_, String>(s)))
+        StreamBody::new(stream::iter(S.iter()).map(|&s| Ok::<_, String>(s)))
     })
 }
 
@@ -123,7 +124,7 @@ fn throughput_chunked_large_payload(b: &mut test::Bencher) {
 fn throughput_chunked_many_chunks(b: &mut test::Bencher) {
     bench_server!(b, ("transfer-encoding", "chunked"), || {
         static S: &[&[u8]] = &[&[b'x'; 1_000] as &[u8]; 1_000] as _;
-        Body::wrap_stream(stream::iter(S.iter()).map(|&s| Ok::<_, String>(s)))
+        StreamBody::new(stream::iter(S.iter()).map(|&s| Ok::<_, String>(s)))
     })
 }
 

diff --git a/examples/echo.rs b/examples/echo.rs
@@ -1,6 +1,5 @@
 #![deny(warnings)]
 
-use futures_util::TryStreamExt;
 use hyper::service::{make_service_fn, service_fn};
 use hyper::{Body, Method, Request, Response, Server, StatusCode};
 
@@ -16,16 +15,17 @@ async fn echo(req: Request<Body>) -> Result<Response<Body>, hyper::Error> {
         // Simply echo the body back to the client.
         (&Method::POST, "/echo") => Ok(Response::new(req.into_body())),
 
+        // TODO: Fix this, broken in PR #2896
         // Convert to uppercase before sending back to client using a stream.
-        (&Method::POST, "/echo/uppercase") => {
-            let chunk_stream = req.into_body().map_ok(|chunk| {
-                chunk
-                    .iter()
-                    .map(|byte| byte.to_ascii_uppercase())
-                    .collect::<Vec<u8>>()
-            });
-            Ok(Response::new(Body::wrap_stream(chunk_stream)))
-        }
+        // (&Method::POST, "/echo/uppercase") => {
+        // let chunk_stream = req.into_body().map_ok(|chunk| {
+        //     chunk
+        //         .iter()
+        //         .map(|byte| byte.to_ascii_uppercase())
+        //         .collect::<Vec<u8>>()
+        // });
+        // Ok(Response::new(Body::wrap_stream(chunk_stream)))
+        // }
 
         // Reverse the entire body before sending back to the client.
         //

diff --git a/examples/send_file.rs b/examples/send_file.rs
@@ -1,9 +1,5 @@
 #![deny(warnings)]
 
-use tokio::fs::File;
-
-use tokio_util::codec::{BytesCodec, FramedRead};
-
 use hyper::service::{make_service_fn, service_fn};
 use hyper::{Body, Method, Request, Response, Result, Server, StatusCode};
 
@@ -48,11 +44,8 @@ fn not_found() -> Response<Body> {
 }
 
 async fn simple_file_send(filename: &str) -> Result<Response<Body>> {
-    // Serve a file by asynchronously reading it by chunks using tokio-util crate.
-
-    if let Ok(file) = File::open(filename).await {
-        let stream = FramedRead::new(file, BytesCodec::new());
-        let body = Body::wrap_stream(stream);
+    if let Ok(contents) = tokio::fs::read(filename).await {
+        let body = contents.into();
         return Ok(Response::new(body));
     }
 

diff --git a/examples/web_api.rs b/examples/web_api.rs
@@ -1,7 +1,6 @@
 #![deny(warnings)]
 
 use bytes::Buf;
-use futures_util::{stream, StreamExt};
 use hyper::client::HttpConnector;
 use hyper::service::{make_service_fn, service_fn};
 use hyper::{header, Body, Client, Method, Request, Response, Server, StatusCode};
@@ -24,18 +23,10 @@ async fn client_request_response(client: &Client<HttpConnector>) -> Result<Respo
         .unwrap();
 
     let web_res = client.request(req).await?;
-    // Compare the JSON we sent (before) with what we received (after):
-    let before = stream::once(async {
-        Ok(format!(
-            "<b>POST request body</b>: {}<br><b>Response</b>: ",
-            POST_DATA,
-        )
-        .into())
-    });
-    let after = web_res.into_body();
-    let body = Body::wrap_stream(before.chain(after));
 
-    Ok(Response::new(body))
+    let res_body = web_res.into_body();
+
+    Ok(Response::new(res_body))
 }
 
 async fn api_post_response(req: Request<Body>) -> Result<Response<Body>> {

diff --git a/src/body/body.rs b/src/body/body.rs
@@ -1,20 +1,14 @@
 use std::borrow::Cow;
-#[cfg(feature = "stream")]
-use std::error::Error as StdError;
 use std::fmt;
 
 use bytes::Bytes;
 use futures_channel::mpsc;
 use futures_channel::oneshot;
 use futures_core::Stream; // for mpsc::Receiver
-#[cfg(feature = "stream")]
-use futures_util::TryStreamExt;
 use http::HeaderMap;
 use http_body::{Body as HttpBody, SizeHint};
 
 use super::DecodedLength;
-#[cfg(feature = "stream")]
-use crate::common::sync_wrapper::SyncWrapper;
 use crate::common::Future;
 #[cfg(all(feature = "client", any(feature = "http1", feature = "http2")))]
 use crate::common::Never;
@@ -56,12 +50,6 @@ enum Kind {
     },
     #[cfg(feature = "ffi")]
     Ffi(crate::ffi::UserBody),
-    #[cfg(feature = "stream")]
-    Wrapped(
-        SyncWrapper<
-            Pin<Box<dyn Stream<Item = Result<Bytes, Box<dyn StdError + Send + Sync>>> + Send>>,
-        >,
-    ),
 }
 
 struct Extra {
@@ -164,39 +152,6 @@ impl Body {
         (tx, rx)
     }
 
-    /// Wrap a futures `Stream` in a box inside `Body`.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// # use hyper::Body;
-    /// let chunks: Vec<Result<_, std::io::Error>> = vec![
-    ///     Ok("hello"),
-    ///     Ok(" "),
-    ///     Ok("world"),
-    /// ];
-    ///
-    /// let stream = futures_util::stream::iter(chunks);
-    ///
-    /// let body = Body::wrap_stream(stream);
-    /// ```
-    ///
-    /// # Optional
-    ///
-    /// This function requires enabling the `stream` feature in your
-    /// `Cargo.toml`.
-    #[cfg(feature = "stream")]
-    #[cfg_attr(docsrs, doc(cfg(feature = "stream")))]
-    pub fn wrap_stream<S, O, E>(stream: S) -> Body
-    where
-        S: Stream<Item = Result<O, E>> + Send + 'static,
-        O: Into<Bytes> + 'static,
-        E: Into<Box<dyn StdError + Send + Sync>> + 'static,
-    {
-        let mapped = stream.map_ok(Into::into).map_err(Into::into);
-        Body::new(Kind::Wrapped(SyncWrapper::new(Box::pin(mapped))))
-    }
-
     fn new(kind: Kind) -> Body {
         Body { kind, extra: None }
     }
@@ -329,12 +284,6 @@ impl Body {
 
             #[cfg(feature = "ffi")]
             Kind::Ffi(ref mut body) => body.poll_data(cx),
-
-            #[cfg(feature = "stream")]
-            Kind::Wrapped(ref mut s) => match ready!(s.get_mut().as_mut().poll_next(cx)) {
-                Some(res) => Poll::Ready(Some(res.map_err(crate::Error::new_body))),
-                None => Poll::Ready(None),
-            },
         }
     }
 
@@ -405,8 +354,6 @@ impl HttpBody for Body {
             Kind::H2 { recv: ref h2, .. } => h2.is_end_stream(),
             #[cfg(feature = "ffi")]
             Kind::Ffi(..) => false,
-            #[cfg(feature = "stream")]
-            Kind::Wrapped(..) => false,
         }
     }
 
@@ -426,8 +373,6 @@ impl HttpBody for Body {
         match self.kind {
             Kind::Once(Some(ref val)) => SizeHint::with_exact(val.len() as u64),
             Kind::Once(None) => SizeHint::with_exact(0),
-            #[cfg(feature = "stream")]
-            Kind::Wrapped(..) => SizeHint::default(),
             Kind::Chan { content_length, .. } => opt_len!(content_length),
             #[cfg(all(feature = "http2", any(feature = "client", feature = "server")))]
             Kind::H2 { content_length, .. } => opt_len!(content_length),
@@ -457,33 +402,6 @@ impl fmt::Debug for Body {
     }
 }
 
-/// # Optional
-///
-/// This function requires enabling the `stream` feature in your
-/// `Cargo.toml`.
-#[cfg(feature = "stream")]
-impl Stream for Body {
-    type Item = crate::Result<Bytes>;
-
-    fn poll_next(self: Pin<&mut Self>, cx: &mut task::Context<'_>) -> Poll<Option<Self::Item>> {
-        HttpBody::poll_data(self, cx)
-    }
-}
-
-/// # Optional
-///
-/// This function requires enabling the `stream` feature in your
-/// `Cargo.toml`.
-#[cfg(feature = "stream")]
-impl From<Box<dyn Stream<Item = Result<Bytes, Box<dyn StdError + Send + Sync>>> + Send>> for Body {
-    #[inline]
-    fn from(
-        stream: Box<dyn Stream<Item = Result<Bytes, Box<dyn StdError + Send + Sync>>> + Send>,
-    ) -> Body {
-        Body::new(Kind::Wrapped(SyncWrapper::new(stream.into())))
-    }
-}
-
 impl From<Bytes> for Body {
     #[inline]
     fn from(chunk: Bytes) -> Body {

diff --git a/src/common/mod.rs b/src/common/mod.rs
@@ -18,10 +18,7 @@ pub(crate) mod io;
 #[cfg(all(feature = "client", any(feature = "http1", feature = "http2")))]
 mod lazy;
 mod never;
-#[cfg(any(
-    feature = "stream",
-    all(feature = "client", any(feature = "http1", feature = "http2"))
-))]
+#[cfg(all(feature = "client", any(feature = "http1", feature = "http2")))]
 pub(crate) mod sync_wrapper;
 pub(crate) mod task;
 pub(crate) mod watch;

diff --git a/src/error.rs b/src/error.rs
@@ -48,7 +48,7 @@ pub(super) enum Kind {
     #[cfg(all(feature = "http1", feature = "server", feature = "runtime"))]
     HeaderTimeout,
     /// Error while reading a body from connection.
-    #[cfg(any(feature = "http1", feature = "http2", feature = "stream"))]
+    #[cfg(any(feature = "http1", feature = "http2"))]
     Body,
     /// Error while writing a body to connection.
     #[cfg(any(feature = "http1", feature = "http2"))]
@@ -294,7 +294,7 @@ impl Error {
         Error::new(Kind::ChannelClosed)
     }
 
-    #[cfg(any(feature = "http1", feature = "http2", feature = "stream"))]
+    #[cfg(any(feature = "http1", feature = "http2"))]
     pub(super) fn new_body<E: Into<Cause>>(cause: E) -> Error {
         Error::new(Kind::Body).with(cause)
     }
@@ -440,7 +440,7 @@ impl Error {
             Kind::Accept => "error accepting connection",
             #[cfg(all(feature = "http1", feature = "server", feature = "runtime"))]
             Kind::HeaderTimeout => "read header from client timeout",
-            #[cfg(any(feature = "http1", feature = "http2", feature = "stream"))]
+            #[cfg(any(feature = "http1", feature = "http2"))]
             Kind::Body => "error reading a body from connection",
             #[cfg(any(feature = "http1", feature = "http2"))]
             Kind::BodyWrite => "error writing a body to connection",

diff --git a/src/lib.rs b/src/lib.rs
@@ -52,7 +52,6 @@
 //! - `runtime`: Enables convenient integration with `tokio`, providing
 //!   connectors and acceptors for TCP, and a default executor.
 //! - `tcp`: Enables convenient implementations over TCP (using tokio).
-//! - `stream`: Provides `futures::Stream` capabilities.
 //!
 //! [feature flags]: https://doc.rust-lang.org/cargo/reference/manifest.html#the-features-section