migrate to -utils beta 4 (#2127)

.cargo/config.toml

@@ -1,3 +1,3 @@
 [alias]
-chk = "hack check --workspace --tests --examples"
+chk = "hack check --workspace --all-features --tests --examples"
 lint = "hack --clean-per-run clippy --workspace --tests --examples"

Cargo.toml

@@ -83,7 +83,7 @@ actix-router = "0.2.7"
 actix-rt = "2.2"
 actix-server = "2.0.0-beta.3"
 actix-service = "2.0.0-beta.4"
-actix-utils = "3.0.0-beta.2"
+actix-utils = "3.0.0-beta.4"
 actix-tls = { version = "3.0.0-beta.5", default-features = false, optional = true }
 
 actix-web-codegen = "0.5.0-beta.2"

actix-files/Cargo.toml

@@ -19,12 +19,12 @@ path = "src/lib.rs"
 [dependencies]
 actix-web = { version = "4.0.0-beta.4", default-features = false }
 actix-service = "2.0.0-beta.4"
+actix-utils = "3.0.0-beta.4"
 
 askama_escape = "0.10"
 bitflags = "1"
 bytes = "1"
-futures-core = { version = "0.3.7", default-features = false }
+futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
-futures-util = { version = "0.3.7", default-features = false }
 http-range = "0.1.4"
 derive_more = "0.99.5"
 log = "0.4"

actix-files/src/files.rs

@@ -1,6 +1,7 @@
 use std::{cell::RefCell, fmt, io, path::PathBuf, rc::Rc};
 
 use actix_service::{boxed, IntoServiceFactory, ServiceFactory, ServiceFactoryExt};
+use actix_utils::future::ok;
 use actix_web::{
     dev::{AppService, HttpServiceFactory, ResourceDef, ServiceRequest, ServiceResponse},
     error::Error,
@@ -8,7 +9,7 @@ use actix_web::{
     http::header::DispositionType,
     HttpRequest,
 };
-use futures_util::future::{ok, FutureExt, LocalBoxFuture};
+use futures_core::future::LocalBoxFuture;
 
 use crate::{
     directory_listing, named, Directory, DirectoryRenderer, FilesService, HttpNewService,
@@ -263,18 +264,18 @@ impl ServiceFactory<ServiceRequest> for Files {
         };
 
         if let Some(ref default) = *self.default.borrow() {
-            default
+            let fut = default.new_service(());
-                .new_service(())
+            Box::pin(async {
-                .map(move |result| match result {
+                match fut.await {
                     Ok(default) => {
                         srv.default = Some(default);
                         Ok(srv)
                     }
                     Err(_) => Err(()),
-                })
+                }
-                .boxed_local()
+            })
         } else {
-            ok(srv).boxed_local()
+            Box::pin(ok(srv))
         }
     }
 }

actix-files/src/lib.rs

@@ -65,6 +65,7 @@ mod tests {
     };
 
     use actix_service::ServiceFactory;
+    use actix_utils::future::ok;
     use actix_web::{
         guard,
         http::{
@@ -76,7 +77,6 @@ mod tests {
         web::{self, Bytes},
         App, HttpResponse, Responder,
     };
-    use futures_util::future::ok;
 
     use super::*;
 

actix-files/src/path_buf.rs

@@ -3,8 +3,8 @@ use std::{
     str::FromStr,
 };
 
+use actix_utils::future::{ready, Ready};
 use actix_web::{dev::Payload, FromRequest, HttpRequest};
-use futures_util::future::{ready, Ready};
 
 use crate::error::UriSegmentError;
 

actix-files/src/service.rs

@@ -1,6 +1,7 @@
 use std::{fmt, io, path::PathBuf, rc::Rc};
 
 use actix_service::Service;
+use actix_utils::future::ok;
 use actix_web::{
     dev::{ServiceRequest, ServiceResponse},
     error::Error,
@@ -8,7 +9,7 @@ use actix_web::{
     http::{header, Method},
     HttpResponse,
 };
-use futures_util::future::{ok, Either, LocalBoxFuture, Ready};
+use futures_core::future::LocalBoxFuture;
 
 use crate::{
     named, Directory, DirectoryRenderer, FilesError, HttpService, MimeOverride, NamedFile,
@@ -29,19 +30,18 @@ pub struct FilesService {
     pub(crate) hidden_files: bool,
 }
 
-type FilesServiceFuture = Either<
-    Ready<Result<ServiceResponse, Error>>,
-    LocalBoxFuture<'static, Result<ServiceResponse, Error>>,
->;
-
 impl FilesService {
-    fn handle_err(&self, e: io::Error, req: ServiceRequest) -> FilesServiceFuture {
+    fn handle_err(
-        log::debug!("Failed to handle {}: {}", req.path(), e);
+        &self,
+        err: io::Error,
+        req: ServiceRequest,
+    ) -> LocalBoxFuture<'static, Result<ServiceResponse, Error>> {
+        log::debug!("error handling {}: {}", req.path(), err);
 
         if let Some(ref default) = self.default {
-            Either::Right(default.call(req))
+            Box::pin(default.call(req))
         } else {
-            Either::Left(ok(req.error_response(e)))
+            Box::pin(ok(req.error_response(err)))
         }
     }
 }
@@ -55,7 +55,7 @@ impl fmt::Debug for FilesService {
 impl Service<ServiceRequest> for FilesService {
     type Response = ServiceResponse;
     type Error = Error;
-    type Future = FilesServiceFuture;
+    type Future = LocalBoxFuture<'static, Result<ServiceResponse, Error>>;
 
     actix_service::always_ready!();
 
@@ -69,7 +69,7 @@ impl Service<ServiceRequest> for FilesService {
         };
 
         if !is_method_valid {
-            return Either::Left(ok(req.into_response(
+            return Box::pin(ok(req.into_response(
                 actix_web::HttpResponse::MethodNotAllowed()
                     .insert_header(header::ContentType(mime::TEXT_PLAIN_UTF_8))
                     .body("Request did not meet this resource's requirements."),
@@ -79,13 +79,13 @@ impl Service<ServiceRequest> for FilesService {
         let real_path =
             match PathBufWrap::parse_path(req.match_info().path(), self.hidden_files) {
                 Ok(item) => item,
-                Err(e) => return Either::Left(ok(req.error_response(e))),
+                Err(e) => return Box::pin(ok(req.error_response(e))),
             };
 
         // full file path
         let path = match self.directory.join(&real_path).canonicalize() {
             Ok(path) => path,
-            Err(e) => return self.handle_err(e, req),
+            Err(err) => return Box::pin(self.handle_err(err, req)),
         };
 
         if path.is_dir() {
@@ -93,7 +93,7 @@ impl Service<ServiceRequest> for FilesService {
                 if self.redirect_to_slash && !req.path().ends_with('/') {
                     let redirect_to = format!("{}/", req.path());
 
-                    return Either::Left(ok(req.into_response(
+                    return Box::pin(ok(req.into_response(
                         HttpResponse::Found()
                             .insert_header((header::LOCATION, redirect_to))
                             .body("")
@@ -114,9 +114,9 @@ impl Service<ServiceRequest> for FilesService {
 
                         let (req, _) = req.into_parts();
                         let res = named_file.into_response(&req);
-                        Either::Left(ok(ServiceResponse::new(req, res)))
+                        Box::pin(ok(ServiceResponse::new(req, res)))
                     }
-                    Err(e) => self.handle_err(e, req),
+                    Err(err) => self.handle_err(err, req),
                 }
             } else if self.show_index {
                 let dir = Directory::new(self.directory.clone(), path);
@@ -124,12 +124,12 @@ impl Service<ServiceRequest> for FilesService {
                 let (req, _) = req.into_parts();
                 let x = (self.renderer)(&dir, &req);
 
-                match x {
+                Box::pin(match x {
-                    Ok(resp) => Either::Left(ok(resp)),
+                    Ok(resp) => ok(resp),
-                    Err(e) => Either::Left(ok(ServiceResponse::from_err(e, req))),
+                    Err(err) => ok(ServiceResponse::from_err(err, req)),
-                }
+                })
             } else {
-                Either::Left(ok(ServiceResponse::from_err(
+                Box::pin(ok(ServiceResponse::from_err(
                     FilesError::IsDirectory,
                     req.into_parts().0,
                 )))
@@ -145,9 +145,9 @@ impl Service<ServiceRequest> for FilesService {
 
                     let (req, _) = req.into_parts();
                     let res = named_file.into_response(&req);
-                    Either::Left(ok(ServiceResponse::new(req, res)))
+                    Box::pin(ok(ServiceResponse::new(req, res)))
                 }
-                Err(e) => self.handle_err(e, req),
+                Err(err) => self.handle_err(err, req),
             }
         }
     }

actix-http-test/Cargo.toml

@@ -32,7 +32,7 @@ openssl = ["tls-openssl", "awc/openssl"]
 actix-service = "2.0.0-beta.4"
 actix-codec = "0.4.0-beta.1"
 actix-tls = "3.0.0-beta.5"
-actix-utils = "3.0.0-beta.2"
+actix-utils = "3.0.0-beta.4"
 actix-rt = "2.2"
 actix-server = "2.0.0-beta.3"
 awc = { version = "3.0.0-beta.3", default-features = false }

actix-http/CHANGES.md

@@ -9,8 +9,12 @@
 ### Changed
 * `client::Connector` type now only have one generic type for `actix_service::Service`. [#2063]
 
+### Removed
+* `ResponseError` impl for `actix_utils::timeout::TimeoutError`. [#2127]
+
 [#2063]: https://github.com/actix/actix-web/pull/2063
 [#2081]: https://github.com/actix/actix-web/pull/2081
+[#2127]: https://github.com/actix/actix-web/pull/2127
 
 
 ## 3.0.0-beta.4 - 2021-03-08

actix-http/Cargo.toml

@@ -46,7 +46,7 @@ trust-dns = ["trust-dns-resolver"]
 [dependencies]
 actix-service = "2.0.0-beta.4"
 actix-codec = "0.4.0-beta.1"
-actix-utils = "3.0.0-beta.2"
+actix-utils = "3.0.0-beta.4"
 actix-rt = "2.2"
 actix-tls = "3.0.0-beta.5"
 
@@ -65,11 +65,13 @@ http = "0.2.2"
 httparse = "1.3"
 itoa = "0.4"
 language-tags = "0.2"
+local-channel = "0.1"
 once_cell = "1.5"
 log = "0.4"
 mime = "0.3"
 percent-encoding = "2.1"
 pin-project = "1.0.0"
+pin-project-lite = "0.2"
 rand = "0.8"
 regex = "1.3"
 serde = "1.0"

actix-http/examples/hello-world.rs

@@ -2,7 +2,7 @@ use std::{env, io};
 
 use actix_http::{HttpService, Response};
 use actix_server::Server;
-use futures_util::future;
+use actix_utils::future;
 use http::header::HeaderValue;
 use log::info;
 

actix-http/src/body/mod.rs

@@ -20,8 +20,9 @@ mod tests {
     use std::pin::Pin;
 
     use actix_rt::pin;
+    use actix_utils::future::poll_fn;
     use bytes::{Bytes, BytesMut};
-    use futures_util::{future::poll_fn, stream};
+    use futures_util::stream;
 
     use super::*;
 

actix-http/src/client/h1proto.rs

@@ -5,10 +5,11 @@ use std::{
 };
 
 use actix_codec::Framed;
+use actix_utils::future::poll_fn;
 use bytes::buf::BufMut;
 use bytes::{Bytes, BytesMut};
 use futures_core::{ready, Stream};
-use futures_util::{future::poll_fn, SinkExt as _};
+use futures_util::SinkExt as _;
 
 use crate::error::PayloadError;
 use crate::h1;

actix-http/src/client/h2proto.rs

@@ -1,7 +1,7 @@
 use std::future::Future;
 
+use actix_utils::future::poll_fn;
 use bytes::Bytes;
-use futures_util::future::poll_fn;
 use h2::{
     client::{Builder, Connection, SendRequest},
     SendStream,

actix-http/src/error.rs

@@ -6,9 +6,6 @@ use std::str::Utf8Error;
 use std::string::FromUtf8Error;
 use std::{fmt, io, result};
 
-use actix_codec::{Decoder, Encoder};
-use actix_utils::dispatcher::DispatcherError as FramedDispatcherError;
-use actix_utils::timeout::TimeoutError;
 use bytes::BytesMut;
 use derive_more::{Display, From};
 use http::uri::InvalidUri;
@@ -148,19 +145,6 @@ impl From<ResponseBuilder> for Error {
     }
 }
 
-/// Inspects the underlying enum and returns an appropriate status code.
-///
-/// If the variant is [`TimeoutError::Service`], the error code of the service is returned.
-/// Otherwise, [`StatusCode::GATEWAY_TIMEOUT`] is returned.
-impl<E: ResponseError> ResponseError for TimeoutError<E> {
-    fn status_code(&self) -> StatusCode {
-        match self {
-            TimeoutError::Service(e) => e.status_code(),
-            TimeoutError::Timeout => StatusCode::GATEWAY_TIMEOUT,
-        }
-    }
-}
-
 #[derive(Debug, Display)]
 #[display(fmt = "UnknownError")]
 struct UnitError;
@@ -469,14 +453,6 @@ impl ResponseError for ContentTypeError {
     }
 }
 
-impl<E, U: Encoder<I> + Decoder, I> ResponseError for FramedDispatcherError<E, U, I>
-where
-    E: fmt::Debug + fmt::Display,
-    <U as Encoder<I>>::Error: fmt::Debug,
-    <U as Decoder>::Error: fmt::Debug,
-{
-}
-
 /// Helper type that can wrap any error and generate custom response.
 ///
 /// In following example any `io::Error` will be converted into "BAD REQUEST"

actix-http/src/h1/dispatcher.rs

@@ -951,7 +951,8 @@ mod tests {
     use std::str;
 
     use actix_service::fn_service;
-    use futures_util::future::{lazy, ready, Ready};
+    use actix_utils::future::{ready, Ready};
+    use futures_util::future::lazy;
 
     use super::*;
     use crate::{

actix-http/src/h1/expect.rs

@@ -1,5 +1,5 @@
 use actix_service::{Service, ServiceFactory};
-use futures_util::future::{ready, Ready};
+use actix_utils::future::{ready, Ready};
 
 use crate::error::Error;
 use crate::request::Request;

actix-http/src/h1/payload.rs

@@ -263,7 +263,7 @@ impl Inner {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use futures_util::future::poll_fn;
+    use actix_utils::future::poll_fn;
 
     #[actix_rt::test]
     async fn test_unread_data() {

actix-http/src/h1/service.rs

@@ -6,8 +6,8 @@ use std::{fmt, net};
 use actix_codec::{AsyncRead, AsyncWrite, Framed};
 use actix_rt::net::TcpStream;
 use actix_service::{pipeline_factory, IntoServiceFactory, Service, ServiceFactory};
+use actix_utils::future::ready;
 use futures_core::future::LocalBoxFuture;
-use futures_util::future::ready;
 
 use crate::body::MessageBody;
 use crate::config::ServiceConfig;

actix-http/src/h2/service.rs

@@ -10,9 +10,9 @@ use actix_service::{
     fn_factory, fn_service, pipeline_factory, IntoServiceFactory, Service,
     ServiceFactory,
 };
+use actix_utils::future::ready;
 use bytes::Bytes;
 use futures_core::{future::LocalBoxFuture, ready};
-use futures_util::future::ready;
 use h2::server::{handshake, Handshake};
 use log::error;
 

actix-http/src/ws/dispatcher.rs

@@ -4,7 +4,6 @@ use std::task::{Context, Poll};
 
 use actix_codec::{AsyncRead, AsyncWrite, Framed};
 use actix_service::{IntoService, Service};
-use actix_utils::dispatcher::{Dispatcher as InnerDispatcher, DispatcherError};
 
 use super::{Codec, Frame, Message};
 
@@ -15,7 +14,7 @@ where
     T: AsyncRead + AsyncWrite,
 {
     #[pin]
-    inner: InnerDispatcher<S, T, Codec, Message>,
+    inner: inner::Dispatcher<S, T, Codec, Message>,
 }
 
 impl<S, T> Dispatcher<S, T>
@@ -27,13 +26,13 @@ where
 {
     pub fn new<F: IntoService<S, Frame>>(io: T, service: F) -> Self {
         Dispatcher {
-            inner: InnerDispatcher::new(Framed::new(io, Codec::new()), service),
+            inner: inner::Dispatcher::new(Framed::new(io, Codec::new()), service),
         }
     }
 
     pub fn with<F: IntoService<S, Frame>>(framed: Framed<T, Codec>, service: F) -> Self {
         Dispatcher {
-            inner: InnerDispatcher::new(framed, service),
+            inner: inner::Dispatcher::new(framed, service),
         }
     }
 }
@@ -45,9 +44,393 @@ where
     S::Future: 'static,
     S::Error: 'static,
 {
-    type Output = Result<(), DispatcherError<S::Error, Codec, Message>>;
+    type Output = Result<(), inner::DispatcherError<S::Error, Codec, Message>>;
 
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         self.project().inner.poll(cx)
     }
 }
+
+/// Framed dispatcher service and related utilities.
+mod inner {
+    // allow dead code since this mod was ripped from actix-utils
+    #![allow(dead_code)]
+
+    use core::{
+        fmt,
+        future::Future,
+        mem,
+        pin::Pin,
+        task::{Context, Poll},
+    };
+
+    use actix_service::{IntoService, Service};
+    use futures_core::stream::Stream;
+    use local_channel::mpsc;
+    use log::debug;
+    use pin_project_lite::pin_project;
+
+    use actix_codec::{AsyncRead, AsyncWrite, Decoder, Encoder, Framed};
+
+    use crate::ResponseError;
+
+    /// Framed transport errors
+    pub enum DispatcherError<E, U, I>
+    where
+        U: Encoder<I> + Decoder,
+    {
+        /// Inner service error.
+        Service(E),
+
+        /// Frame encoding error.
+        Encoder(<U as Encoder<I>>::Error),
+
+        /// Frame decoding error.
+        Decoder(<U as Decoder>::Error),
+    }
+
+    impl<E, U, I> From<E> for DispatcherError<E, U, I>
+    where
+        U: Encoder<I> + Decoder,
+    {
+        fn from(err: E) -> Self {
+            DispatcherError::Service(err)
+        }
+    }
+
+    impl<E, U, I> fmt::Debug for DispatcherError<E, U, I>
+    where
+        E: fmt::Debug,
+        U: Encoder<I> + Decoder,
+        <U as Encoder<I>>::Error: fmt::Debug,
+        <U as Decoder>::Error: fmt::Debug,
+    {
+        fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
+            match *self {
+                DispatcherError::Service(ref e) => {
+                    write!(fmt, "DispatcherError::Service({:?})", e)
+                }
+                DispatcherError::Encoder(ref e) => {
+                    write!(fmt, "DispatcherError::Encoder({:?})", e)
+                }
+                DispatcherError::Decoder(ref e) => {
+                    write!(fmt, "DispatcherError::Decoder({:?})", e)
+                }
+            }
+        }
+    }
+
+    impl<E, U, I> fmt::Display for DispatcherError<E, U, I>
+    where
+        E: fmt::Display,
+        U: Encoder<I> + Decoder,
+        <U as Encoder<I>>::Error: fmt::Debug,
+        <U as Decoder>::Error: fmt::Debug,
+    {
+        fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
+            match *self {
+                DispatcherError::Service(ref e) => write!(fmt, "{}", e),
+                DispatcherError::Encoder(ref e) => write!(fmt, "{:?}", e),
+                DispatcherError::Decoder(ref e) => write!(fmt, "{:?}", e),
+            }
+        }
+    }
+
+    impl<E, U, I> ResponseError for DispatcherError<E, U, I>
+    where
+        E: fmt::Debug + fmt::Display,
+        U: Encoder<I> + Decoder,
+        <U as Encoder<I>>::Error: fmt::Debug,
+        <U as Decoder>::Error: fmt::Debug,
+    {
+    }
+
+    /// Message type wrapper for signalling end of message stream.
+    pub enum Message<T> {
+        /// Message item.
+        Item(T),
+
+        /// Signal from service to flush all messages and stop processing.
+        Close,
+    }
+
+    pin_project! {
+        /// A future that reads frames from a [`Framed`] object and passes them to a [`Service`].
+        pub struct Dispatcher<S, T, U, I>
+        where
+            S: Service<<U as Decoder>::Item, Response = I>,
+            S::Error: 'static,
+            S::Future: 'static,
+            T: AsyncRead,
+            T: AsyncWrite,
+            U: Encoder<I>,
+            U: Decoder,
+            I: 'static,
+            <U as Encoder<I>>::Error: fmt::Debug,
+        {
+            service: S,
+            state: State<S, U, I>,
+            #[pin]
+            framed: Framed<T, U>,
+            rx: mpsc::Receiver<Result<Message<I>, S::Error>>,
+            tx: mpsc::Sender<Result<Message<I>, S::Error>>,
+        }
+    }
+
+    enum State<S, U, I>
+    where
+        S: Service<<U as Decoder>::Item>,
+        U: Encoder<I> + Decoder,
+    {
+        Processing,
+        Error(DispatcherError<S::Error, U, I>),
+        FramedError(DispatcherError<S::Error, U, I>),
+        FlushAndStop,
+        Stopping,
+    }
+
+    impl<S, U, I> State<S, U, I>
+    where
+        S: Service<<U as Decoder>::Item>,
+        U: Encoder<I> + Decoder,
+    {
+        fn take_error(&mut self) -> DispatcherError<S::Error, U, I> {
+            match mem::replace(self, State::Processing) {
+                State::Error(err) => err,
+                _ => panic!(),
+            }
+        }
+
+        fn take_framed_error(&mut self) -> DispatcherError<S::Error, U, I> {
+            match mem::replace(self, State::Processing) {
+                State::FramedError(err) => err,
+                _ => panic!(),
+            }
+        }
+    }
+
+    impl<S, T, U, I> Dispatcher<S, T, U, I>
+    where
+        S: Service<<U as Decoder>::Item, Response = I>,
+        S::Error: 'static,
+        S::Future: 'static,
+        T: AsyncRead + AsyncWrite,
+        U: Decoder + Encoder<I>,
+        I: 'static,
+        <U as Decoder>::Error: fmt::Debug,
+        <U as Encoder<I>>::Error: fmt::Debug,
+    {
+        /// Create new `Dispatcher`.
+        pub fn new<F>(framed: Framed<T, U>, service: F) -> Self
+        where
+            F: IntoService<S, <U as Decoder>::Item>,
+        {
+            let (tx, rx) = mpsc::channel();
+            Dispatcher {
+                framed,
+                rx,
+                tx,
+                service: service.into_service(),
+                state: State::Processing,
+            }
+        }
+
+        /// Construct new `Dispatcher` instance with customer `mpsc::Receiver`
+        pub fn with_rx<F>(
+            framed: Framed<T, U>,
+            service: F,
+            rx: mpsc::Receiver<Result<Message<I>, S::Error>>,
+        ) -> Self
+        where
+            F: IntoService<S, <U as Decoder>::Item>,
+        {
+            let tx = rx.sender();
+            Dispatcher {
+                framed,
+                rx,
+                tx,
+                service: service.into_service(),
+                state: State::Processing,
+            }
+        }
+
+        /// Get sender handle.
+        pub fn tx(&self) -> mpsc::Sender<Result<Message<I>, S::Error>> {
+            self.tx.clone()
+        }
+
+        /// Get reference to a service wrapped by `Dispatcher` instance.
+        pub fn service(&self) -> &S {
+            &self.service
+        }
+
+        /// Get mutable reference to a service wrapped by `Dispatcher` instance.
+        pub fn service_mut(&mut self) -> &mut S {
+            &mut self.service
+        }
+
+        /// Get reference to a framed instance wrapped by `Dispatcher` instance.
+        pub fn framed(&self) -> &Framed<T, U> {
+            &self.framed
+        }
+
+        /// Get mutable reference to a framed instance wrapped by `Dispatcher` instance.
+        pub fn framed_mut(&mut self) -> &mut Framed<T, U> {
+            &mut self.framed
+        }
+
+        /// Read from framed object.
+        fn poll_read(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> bool
+        where
+            S: Service<<U as Decoder>::Item, Response = I>,
+            S::Error: 'static,
+            S::Future: 'static,
+            T: AsyncRead + AsyncWrite,
+            U: Decoder + Encoder<I>,
+            I: 'static,
+            <U as Encoder<I>>::Error: fmt::Debug,
+        {
+            loop {
+                let this = self.as_mut().project();
+                match this.service.poll_ready(cx) {
+                    Poll::Ready(Ok(_)) => {
+                        let item = match this.framed.next_item(cx) {
+                            Poll::Ready(Some(Ok(el))) => el,
+                            Poll::Ready(Some(Err(err))) => {
+                                *this.state =
+                                    State::FramedError(DispatcherError::Decoder(err));
+                                return true;
+                            }
+                            Poll::Pending => return false,
+                            Poll::Ready(None) => {
+                                *this.state = State::Stopping;
+                                return true;
+                            }
+                        };
+
+                        let tx = this.tx.clone();
+                        let fut = this.service.call(item);
+                        actix_rt::spawn(async move {
+                            let item = fut.await;
+                            let _ = tx.send(item.map(Message::Item));
+                        });
+                    }
+                    Poll::Pending => return false,
+                    Poll::Ready(Err(err)) => {
+                        *this.state = State::Error(DispatcherError::Service(err));
+                        return true;
+                    }
+                }
+            }
+        }
+
+        /// Write to framed object.
+        fn poll_write(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> bool
+        where
+            S: Service<<U as Decoder>::Item, Response = I>,
+            S::Error: 'static,
+            S::Future: 'static,
+            T: AsyncRead + AsyncWrite,
+            U: Decoder + Encoder<I>,
+            I: 'static,
+            <U as Encoder<I>>::Error: fmt::Debug,
+        {
+            loop {
+                let mut this = self.as_mut().project();
+                while !this.framed.is_write_buf_full() {
+                    match Pin::new(&mut this.rx).poll_next(cx) {
+                        Poll::Ready(Some(Ok(Message::Item(msg)))) => {
+                            if let Err(err) = this.framed.as_mut().write(msg) {
+                                *this.state =
+                                    State::FramedError(DispatcherError::Encoder(err));
+                                return true;
+                            }
+                        }
+                        Poll::Ready(Some(Ok(Message::Close))) => {
+                            *this.state = State::FlushAndStop;
+                            return true;
+                        }
+                        Poll::Ready(Some(Err(err))) => {
+                            *this.state = State::Error(DispatcherError::Service(err));
+                            return true;
+                        }
+                        Poll::Ready(None) | Poll::Pending => break,
+                    }
+                }
+
+                if !this.framed.is_write_buf_empty() {
+                    match this.framed.flush(cx) {
+                        Poll::Pending => break,
+                        Poll::Ready(Ok(_)) => {}
+                        Poll::Ready(Err(err)) => {
+                            debug!("Error sending data: {:?}", err);
+                            *this.state =
+                                State::FramedError(DispatcherError::Encoder(err));
+                            return true;
+                        }
+                    }
+                } else {
+                    break;
+                }
+            }
+
+            false
+        }
+    }
+
+    impl<S, T, U, I> Future for Dispatcher<S, T, U, I>
+    where
+        S: Service<<U as Decoder>::Item, Response = I>,
+        S::Error: 'static,
+        S::Future: 'static,
+        T: AsyncRead + AsyncWrite,
+        U: Decoder + Encoder<I>,
+        I: 'static,
+        <U as Encoder<I>>::Error: fmt::Debug,
+        <U as Decoder>::Error: fmt::Debug,
+    {
+        type Output = Result<(), DispatcherError<S::Error, U, I>>;
+
+        fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+            loop {
+                let this = self.as_mut().project();
+
+                return match this.state {
+                    State::Processing => {
+                        if self.as_mut().poll_read(cx) || self.as_mut().poll_write(cx) {
+                            continue;
+                        } else {
+                            Poll::Pending
+                        }
+                    }
+                    State::Error(_) => {
+                        // flush write buffer
+                        if !this.framed.is_write_buf_empty()
+                            && this.framed.flush(cx).is_pending()
+                        {
+                            return Poll::Pending;
+                        }
+                        Poll::Ready(Err(this.state.take_error()))
+                    }
+                    State::FlushAndStop => {
+                        if !this.framed.is_write_buf_empty() {
+                            this.framed.flush(cx).map(|res| {
+                                if let Err(err) = res {
+                                    debug!("Error sending data: {:?}", err);
+                                }
+
+                                Ok(())
+                            })
+                        } else {
+                            Poll::Ready(Ok(()))
+                        }
+                    }
+                    State::FramedError(_) => {
+                        Poll::Ready(Err(this.state.take_framed_error()))
+                    }
+                    State::Stopping => Poll::Ready(Ok(())),
+                };
+            }
+        }
+    }
+}

actix-http/tests/test_client.rs

@@ -3,11 +3,9 @@ use actix_http::{
 };
 use actix_http_test::test_server;
 use actix_service::ServiceFactoryExt;
+use actix_utils::future;
 use bytes::Bytes;
-use futures_util::{
+use futures_util::StreamExt as _;
-    future::{self, ok},
-    StreamExt as _,
-};
 
 const STR: &str = "Hello World Hello World Hello World Hello World Hello World \
                    Hello World Hello World Hello World Hello World Hello World \
@@ -63,7 +61,7 @@ async fn test_h1_v2() {
 async fn test_connection_close() {
     let srv = test_server(move || {
         HttpService::build()
-            .finish(|_| ok::<_, ()>(Response::Ok().body(STR)))
+            .finish(|_| future::ok::<_, ()>(Response::Ok().body(STR)))
             .tcp()
             .map(|_| ())
     })
@@ -79,9 +77,9 @@ async fn test_with_query_parameter() {
         HttpService::build()
             .finish(|req: Request| {
                 if req.uri().query().unwrap().contains("qp=") {
-                    ok::<_, ()>(Response::Ok().finish())
+                    future::ok::<_, ()>(Response::Ok().finish())
                 } else {
-                    ok::<_, ()>(Response::BadRequest().finish())
+                    future::ok::<_, ()>(Response::BadRequest().finish())
                 }
             })
             .tcp()

actix-http/tests/test_openssl.rs

@@ -11,12 +11,10 @@ use actix_http::HttpMessage;
 use actix_http::{body, Error, HttpService, Request, Response};
 use actix_http_test::test_server;
 use actix_service::{fn_service, ServiceFactoryExt};
+use actix_utils::future::{err, ok, ready};
 use bytes::{Bytes, BytesMut};
 use futures_core::Stream;
-use futures_util::{
+use futures_util::stream::{once, StreamExt as _};
-    future::{err, ok, ready},
-    stream::{once, StreamExt as _},
-};
 use openssl::{
     pkey::PKey,
     ssl::{SslAcceptor, SslMethod},

actix-http/tests/test_rustls.rs

@@ -8,10 +8,10 @@ use actix_http::http::{Method, StatusCode, Version};
 use actix_http::{body, error, Error, HttpService, Request, Response};
 use actix_http_test::test_server;
 use actix_service::{fn_factory_with_config, fn_service};
+use actix_utils::future::{err, ok};
 
 use bytes::{Bytes, BytesMut};
 use futures_core::Stream;
-use futures_util::future::{self, err, ok};
 use futures_util::stream::{once, StreamExt as _};
 use rustls::{
     internal::pemfile::{certs, pkcs8_private_keys},
@@ -51,7 +51,7 @@ fn tls_config() -> RustlsServerConfig {
 async fn test_h1() -> io::Result<()> {
     let srv = test_server(move || {
         HttpService::build()
-            .h1(|_| future::ok::<_, Error>(Response::Ok().finish()))
+            .h1(|_| ok::<_, Error>(Response::Ok().finish()))
             .rustls(tls_config())
     })
     .await;
@@ -65,7 +65,7 @@ async fn test_h1() -> io::Result<()> {
 async fn test_h2() -> io::Result<()> {
     let srv = test_server(move || {
         HttpService::build()
-            .h2(|_| future::ok::<_, Error>(Response::Ok().finish()))
+            .h2(|_| ok::<_, Error>(Response::Ok().finish()))
             .rustls(tls_config())
     })
     .await;
@@ -82,7 +82,7 @@ async fn test_h1_1() -> io::Result<()> {
             .h1(|req: Request| {
                 assert!(req.peer_addr().is_some());
                 assert_eq!(req.version(), Version::HTTP_11);
-                future::ok::<_, Error>(Response::Ok().finish())
+                ok::<_, Error>(Response::Ok().finish())
             })
             .rustls(tls_config())
     })
@@ -100,7 +100,7 @@ async fn test_h2_1() -> io::Result<()> {
             .finish(|req: Request| {
                 assert!(req.peer_addr().is_some());
                 assert_eq!(req.version(), Version::HTTP_2);
-                future::ok::<_, Error>(Response::Ok().finish())
+                ok::<_, Error>(Response::Ok().finish())
             })
             .rustls(tls_config())
     })
@@ -144,7 +144,7 @@ async fn test_h2_content_length() {
                     StatusCode::OK,
                     StatusCode::NOT_FOUND,
                 ];
-                future::ok::<_, ()>(Response::new(statuses[indx]))
+                ok::<_, ()>(Response::new(statuses[indx]))
             })
             .rustls(tls_config())
     })
@@ -213,7 +213,7 @@ async fn test_h2_headers() {
                         TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST ",
                 ));
             }
-            future::ok::<_, ()>(config.body(data.clone()))
+            ok::<_, ()>(config.body(data.clone()))
         })
             .rustls(tls_config())
     }).await;
@@ -252,7 +252,7 @@ const STR: &str = "Hello World Hello World Hello World Hello World Hello World \
 async fn test_h2_body2() {
     let mut srv = test_server(move || {
         HttpService::build()
-            .h2(|_| future::ok::<_, ()>(Response::Ok().body(STR)))
+            .h2(|_| ok::<_, ()>(Response::Ok().body(STR)))
             .rustls(tls_config())
     })
     .await;

actix-http/tests/test_server.rs

@@ -5,9 +5,10 @@ use std::{net, thread};
 use actix_http_test::test_server;
 use actix_rt::time::sleep;
 use actix_service::fn_service;
+use actix_utils::future::{err, ok, ready};
 use bytes::Bytes;
-use futures_util::future::{self, err, ok, ready, FutureExt};
 use futures_util::stream::{once, StreamExt as _};
+use futures_util::FutureExt as _;
 use regex::Regex;
 
 use actix_http::HttpMessage;
@@ -24,7 +25,7 @@ async fn test_h1() {
             .client_disconnect(1000)
             .h1(|req: Request| {
                 assert!(req.peer_addr().is_some());
-                future::ok::<_, ()>(Response::Ok().finish())
+                ok::<_, ()>(Response::Ok().finish())
             })
             .tcp()
     })
@@ -44,7 +45,7 @@ async fn test_h1_2() {
             .finish(|req: Request| {
                 assert!(req.peer_addr().is_some());
                 assert_eq!(req.version(), http::Version::HTTP_11);
-                future::ok::<_, ()>(Response::Ok().finish())
+                ok::<_, ()>(Response::Ok().finish())
             })
             .tcp()
     })
@@ -65,7 +66,7 @@ async fn test_expect_continue() {
                     err(error::ErrorPreconditionFailed("error"))
                 }
             }))
-            .finish(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .finish(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -96,7 +97,7 @@ async fn test_expect_continue_h1() {
                     }
                 })
             }))
-            .h1(fn_service(|_| future::ok::<_, ()>(Response::Ok().finish())))
+            .h1(fn_service(|_| ok::<_, ()>(Response::Ok().finish())))
             .tcp()
     })
     .await;
@@ -175,7 +176,7 @@ async fn test_slow_request() {
     let srv = test_server(|| {
         HttpService::build()
             .client_timeout(100)
-            .finish(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .finish(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -191,7 +192,7 @@ async fn test_slow_request() {
 async fn test_http1_malformed_request() {
     let srv = test_server(|| {
         HttpService::build()
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -207,7 +208,7 @@ async fn test_http1_malformed_request() {
 async fn test_http1_keepalive() {
     let srv = test_server(|| {
         HttpService::build()
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -229,7 +230,7 @@ async fn test_http1_keepalive_timeout() {
     let srv = test_server(|| {
         HttpService::build()
             .keep_alive(1)
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -250,7 +251,7 @@ async fn test_http1_keepalive_timeout() {
 async fn test_http1_keepalive_close() {
     let srv = test_server(|| {
         HttpService::build()
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -271,7 +272,7 @@ async fn test_http1_keepalive_close() {
 async fn test_http10_keepalive_default_close() {
     let srv = test_server(|| {
         HttpService::build()
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -291,7 +292,7 @@ async fn test_http10_keepalive_default_close() {
 async fn test_http10_keepalive() {
     let srv = test_server(|| {
         HttpService::build()
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -319,7 +320,7 @@ async fn test_http1_keepalive_disabled() {
     let srv = test_server(|| {
         HttpService::build()
             .keep_alive(KeepAlive::Disabled)
-            .h1(|_| future::ok::<_, ()>(Response::Ok().finish()))
+            .h1(|_| ok::<_, ()>(Response::Ok().finish()))
             .tcp()
     })
     .await;
@@ -354,7 +355,7 @@ async fn test_content_length() {
                     StatusCode::OK,
                     StatusCode::NOT_FOUND,
                 ];
-                future::ok::<_, ()>(Response::new(statuses[indx]))
+                ok::<_, ()>(Response::new(statuses[indx]))
             })
             .tcp()
     })
@@ -409,7 +410,7 @@ async fn test_h1_headers() {
                         TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST TEST ",
                 ));
             }
-            future::ok::<_, ()>(builder.body(data.clone()))
+            ok::<_, ()>(builder.body(data.clone()))
         }).tcp()
     }).await;
 
@@ -645,7 +646,7 @@ async fn test_h1_response_http_error_handling() {
 async fn test_h1_service_error() {
     let mut srv = test_server(|| {
         HttpService::build()
-            .h1(|_| future::err::<Response, Error>(error::ErrorBadRequest("error")))
+            .h1(|_| err::<Response, _>(error::ErrorBadRequest("error")))
             .tcp()
     })
     .await;
@@ -667,7 +668,7 @@ async fn test_h1_on_connect() {
             })
             .h1(|req: Request| {
                 assert!(req.extensions().contains::<isize>());
-                future::ok::<_, ()>(Response::Ok().finish())
+                ok::<_, ()>(Response::Ok().finish())
             })
             .tcp()
     })

actix-http/tests/test_ws.rs

@@ -9,11 +9,12 @@ use actix_codec::{AsyncRead, AsyncWrite, Framed};
 use actix_http::{body, h1, ws, Error, HttpService, Request, Response};
 use actix_http_test::test_server;
 use actix_service::{fn_factory, Service};
-use actix_utils::dispatcher::Dispatcher;
+use actix_utils::future;
 use bytes::Bytes;
-use futures_util::future;
 use futures_util::{SinkExt as _, StreamExt as _};
 
+use crate::ws::Dispatcher;
+
 struct WsService<T>(Arc<Mutex<(PhantomData<T>, Cell<bool>)>>);
 
 impl<T> WsService<T> {
@@ -58,7 +59,7 @@ where
                 .await
                 .unwrap();
 
-            Dispatcher::new(framed.replace_codec(ws::Codec::new()), service)
+            Dispatcher::with(framed.replace_codec(ws::Codec::new()), service)
                 .await
                 .map_err(|_| panic!())
         };

actix-multipart/Cargo.toml

@@ -17,12 +17,14 @@ path = "src/lib.rs"
 
 [dependencies]
 actix-web = { version = "4.0.0-beta.4", default-features = false }
-actix-utils = "3.0.0-beta.2"
+actix-utils = "3.0.0-beta.4"
 
 bytes = "1"
 derive_more = "0.99.5"
-httparse = "1.3"
+futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
 futures-util = { version = "0.3.7", default-features = false, features = ["alloc"] }
+httparse = "1.3"
+local-waker = "0.1"
 log = "0.4"
 mime = "0.3"
 twoway = "0.2"

actix-multipart/src/extractor.rs

@@ -1,21 +1,22 @@
 //! Multipart payload support
+
+use actix_utils::future::{ready, Ready};
 use actix_web::{dev::Payload, Error, FromRequest, HttpRequest};
-use futures_util::future::{ok, Ready};
 
 use crate::server::Multipart;
 
-/// Get request's payload as multipart stream
+/// Get request's payload as multipart stream.
 ///
 /// Content-type: multipart/form-data;
 ///
 /// ## Server example
 ///
 /// ```
-/// use futures_util::stream::{Stream, StreamExt};
 /// use actix_web::{web, HttpResponse, Error};
-/// use actix_multipart as mp;
+/// use actix_multipart::Multipart;
+/// use futures_util::stream::StreamExt as _;
 ///
-/// async fn index(mut payload: mp::Multipart) -> Result<HttpResponse, Error> {
+/// async fn index(mut payload: Multipart) -> Result<HttpResponse, Error> {
 ///     // iterate over multipart stream
 ///     while let Some(item) = payload.next().await {
 ///            let mut field = item?;
@@ -25,9 +26,9 @@ use crate::server::Multipart;
 ///                println!("-- CHUNK: \n{:?}", std::str::from_utf8(&chunk?));
 ///            }
 ///     }
+///
 ///     Ok(HttpResponse::Ok().into())
 /// }
-/// # fn main() {}
 /// ```
 impl FromRequest for Multipart {
     type Error = Error;
@@ -36,9 +37,9 @@ impl FromRequest for Multipart {
 
     #[inline]
     fn from_request(req: &HttpRequest, payload: &mut Payload) -> Self::Future {
-        ok(match Multipart::boundary(req.headers()) {
+        ready(Ok(match Multipart::boundary(req.headers()) {
             Ok(boundary) => Multipart::from_boundary(boundary, payload.take()),
             Err(err) => Multipart::from_error(err),
-        })
+        }))
     }
 }

actix-multipart/src/server.rs

@@ -1,4 +1,4 @@
-//! Multipart payload support
+//! Multipart response payload support.
 
 use std::cell::{Cell, RefCell, RefMut};
 use std::convert::TryFrom;
@@ -8,12 +8,12 @@ use std::rc::Rc;
 use std::task::{Context, Poll};
 use std::{cmp, fmt};
 
-use bytes::{Bytes, BytesMut};
-use futures_util::stream::{LocalBoxStream, Stream, StreamExt};
-
-use actix_utils::task::LocalWaker;
 use actix_web::error::{ParseError, PayloadError};
 use actix_web::http::header::{self, ContentDisposition, HeaderMap, HeaderName, HeaderValue};
+use bytes::{Bytes, BytesMut};
+use futures_core::stream::{LocalBoxStream, Stream};
+use futures_util::stream::StreamExt as _;
+use local_waker::LocalWaker;
 
 use crate::error::MultipartError;
 

actix-web-actors/tests/test_ws.rs

@@ -5,7 +5,7 @@ use actix_web::{
 };
 use actix_web_actors::*;
 use bytes::Bytes;
-use futures_util::{SinkExt, StreamExt};
+use futures_util::{SinkExt as _, StreamExt as _};
 
 struct Ws;
 

actix-web-codegen/Cargo.toml

@@ -21,6 +21,7 @@ proc-macro2 = "1"
 [dev-dependencies]
 actix-rt = "2.2"
 actix-web = "4.0.0-beta.4"
-futures-util = { version = "0.3.7", default-features = false }
+actix-utils = "3.0.0-beta.4"
+futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
 trybuild = "1"
 rustversion = "1"

actix-web-codegen/tests/test_macro.rs

@@ -1,11 +1,12 @@
 use std::future::Future;
 use std::task::{Context, Poll};
 
+use actix_utils::future;
 use actix_web::dev::{Service, ServiceRequest, ServiceResponse, Transform};
 use actix_web::http::header::{HeaderName, HeaderValue};
 use actix_web::{http, test, web::Path, App, Error, HttpResponse, Responder};
 use actix_web_codegen::{connect, delete, get, head, options, patch, post, put, route, trace};
-use futures_util::future::{self, LocalBoxFuture};
+use futures_core::future::LocalBoxFuture;
 
 // Make sure that we can name function as 'config'
 #[get("/config")]

awc/Cargo.toml

@@ -69,7 +69,7 @@ tls-rustls = { version = "0.19.0", package = "rustls", optional = true, features
 actix-web = { version = "4.0.0-beta.4", features = ["openssl"] }
 actix-http = { version = "3.0.0-beta.4", features = ["openssl"] }
 actix-http-test = { version = "3.0.0-beta.3", features = ["openssl"] }
-actix-utils = "3.0.0-beta.1"
+actix-utils = "3.0.0-beta.4"
 actix-server = "2.0.0-beta.3"
 actix-tls = { version = "3.0.0-beta.5", features = ["openssl", "rustls"] }
 

awc/src/ws.rs

@@ -6,7 +6,7 @@
 //!
 //! ```no_run
 //! use awc::{Client, ws};
-//! use futures_util::{sink::SinkExt, stream::StreamExt};
+//! use futures_util::{sink::SinkExt as _, stream::StreamExt as _};
 //!
 //! #[actix_rt::main]
 //! async fn main() {

awc/tests/test_client.rs

@@ -5,12 +5,13 @@ use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::Arc;
 use std::time::Duration;
 
+use actix_utils::future::ok;
 use brotli2::write::BrotliEncoder;
 use bytes::Bytes;
 use flate2::read::GzDecoder;
 use flate2::write::GzEncoder;
 use flate2::Compression;
-use futures_util::{future::ok, stream};
+use futures_util::stream;
 use rand::Rng;
 
 use actix_http::{
@@ -159,7 +160,7 @@ async fn test_timeout_override() {
 
 #[actix_rt::test]
 async fn test_response_timeout() {
-    use futures_util::stream::{once, StreamExt};
+    use futures_util::stream::{once, StreamExt as _};
 
     let srv = test::start(|| {
         App::new().service(web::resource("/").route(web::to(|| async {

awc/tests/test_rustls_client.rs

@@ -13,8 +13,8 @@ use std::{
 use actix_http::HttpService;
 use actix_http_test::test_server;
 use actix_service::{map_config, pipeline_factory, ServiceFactoryExt};
+use actix_utils::future::ok;
 use actix_web::{dev::AppConfig, http::Version, web, App, HttpResponse};
-use futures_util::future::ok;
 use rustls::internal::pemfile::{certs, pkcs8_private_keys};
 use rustls::{ClientConfig, NoClientAuth, ServerConfig};
 

awc/tests/test_ssl_client.rs

@@ -8,9 +8,9 @@ use std::sync::Arc;
 use actix_http::HttpService;
 use actix_http_test::test_server;
 use actix_service::{map_config, pipeline_factory, ServiceFactoryExt};
+use actix_utils::future::ok;
 use actix_web::http::Version;
 use actix_web::{dev::AppConfig, web, App, HttpResponse};
-use futures_util::future::ok;
 use openssl::{
     pkey::PKey,
     ssl::{SslAcceptor, SslConnector, SslMethod, SslVerifyMode},

awc/tests/test_ws.rs

@@ -3,9 +3,9 @@ use std::io;
 use actix_codec::Framed;
 use actix_http::{body::BodySize, h1, ws, Error, HttpService, Request, Response};
 use actix_http_test::test_server;
+use actix_utils::future::ok;
 use bytes::Bytes;
-use futures_util::future::ok;
+use futures_util::{SinkExt as _, StreamExt as _};
-use futures_util::{SinkExt, StreamExt};
 
 async fn ws_service(req: ws::Frame) -> Result<ws::Message, io::Error> {
     match req {

benches/responder.rs

@@ -1,12 +1,12 @@
-use std::future::Future;
+use std::{future::Future, time::Instant};
-use std::time::Instant;
 
 use actix_http::Response;
+use actix_utils::future::{ready, Ready};
 use actix_web::http::StatusCode;
 use actix_web::test::TestRequest;
 use actix_web::{error, Error, HttpRequest, HttpResponse, Responder};
 use criterion::{criterion_group, criterion_main, Criterion};
-use futures_util::future::{ready, Either, Ready};
+use futures_util::future::{join_all, Either};
 
 // responder simulate the old responder trait.
 trait FutureResponder {
@@ -79,7 +79,7 @@ fn future_responder(c: &mut Criterion) {
                     .await
             });
 
-            let futs = futures_util::future::join_all(futs);
+            let futs = join_all(futs);
 
             let start = Instant::now();
 

docs/graphs/net-only.dot

@@ -1,19 +1,37 @@
 digraph {
+    rankdir=TB
+
     subgraph cluster_net {
-        label="actix/actix-net";
+        label="actix-net"
         "actix-codec" "actix-macros" "actix-rt" "actix-server" "actix-service"
         "actix-tls" "actix-tracing" "actix-utils" "actix-router"
-        "local-channel" "local-waker"
+    }
+    
+    subgraph cluster_other {
+        label="other actix owned crates"
+        { rank=same; "local-channel" "local-waker" "bytestring" }
     }
 
-    "actix-codec" -> { "actix-rt" "actix-service" "local-channel" "tokio" }
+    subgraph cluster_tokio {
+        label="tokio"
+        "tokio" "tokio-util"
+    }
+
+    "actix-codec" -> { "tokio" }
+    "actix-codec" -> { "tokio-util" }[color=red]
     "actix-utils" -> { "local-waker" }
     "actix-tracing" -> { "actix-service" }
     "actix-tls" -> { "actix-service" "actix-codec" "actix-utils" "actix-rt" }
-    "actix-server" -> { "actix-service" "actix-rt" "actix-codec" "actix-utils" "tokio" }
+    "actix-tls" -> { "tokio-util" }[color="#009900"]
+    "actix-server" -> { "actix-service" "actix-rt" "actix-utils" "tokio" }
     "actix-rt" -> { "actix-macros" "tokio" }
+    "actix-router" -> { "bytestring" }
 
     "local-channel" -> { "local-waker" }
 
-    "tokio" [fontcolor = darkgreen]
+    // invisible edges to force nicer layout
+    edge [style=invis]
+    "actix-macros" -> "tokio"
+    "actix-service" -> "bytestring"
+    "actix-macros" -> "bytestring"
 }

src/app.rs

@@ -10,7 +10,7 @@ use actix_service::boxed::{self, BoxServiceFactory};
 use actix_service::{
     apply, apply_fn_factory, IntoServiceFactory, ServiceFactory, ServiceFactoryExt, Transform,
 };
-use futures_util::future::FutureExt;
+use futures_util::future::FutureExt as _;
 
 use crate::app_service::{AppEntry, AppInit, AppRoutingFactory};
 use crate::config::ServiceConfig;
@@ -465,8 +465,8 @@ where
 #[cfg(test)]
 mod tests {
     use actix_service::Service;
+    use actix_utils::future::{err, ok};
     use bytes::Bytes;
-    use futures_util::future::{err, ok};
 
     use super::*;
     use crate::http::{header, HeaderValue, Method, StatusCode};

src/data.rs

@@ -4,7 +4,8 @@ use std::sync::Arc;
 
 use actix_http::error::{Error, ErrorInternalServerError};
 use actix_http::Extensions;
-use futures_util::future::{err, ok, LocalBoxFuture, Ready};
+use actix_utils::future::{err, ok, Ready};
+use futures_core::future::LocalBoxFuture;
 use serde::Serialize;
 
 use crate::dev::Payload;
@@ -147,10 +148,10 @@ impl<T: ?Sized + 'static> DataFactory for Data<T> {
 
 #[cfg(test)]
 mod tests {
-    use actix_service::Service;
     use std::sync::atomic::{AtomicUsize, Ordering};
 
     use super::*;
+    use crate::dev::Service;
     use crate::http::StatusCode;
     use crate::test::{self, init_service, TestRequest};
     use crate::{web, App, HttpResponse};

src/extract.rs

@@ -6,10 +6,8 @@ use std::{
     task::{Context, Poll},
 };
 
-use futures_util::{
+use actix_utils::future::{ready, Ready};
-    future::{ready, Ready},
+use futures_core::ready;
-    ready,
-};
 
 use crate::{dev::Payload, Error, HttpRequest};
 

src/handler.rs

@@ -5,8 +5,8 @@ use std::task::{Context, Poll};
 
 use actix_http::{Error, Response};
 use actix_service::{Service, ServiceFactory};
-use futures_util::future::{ready, Ready};
+use actix_utils::future::{ready, Ready};
-use futures_util::ready;
+use futures_core::ready;
 use pin_project::pin_project;
 
 use crate::extract::FromRequest;

src/middleware/compress.rs

@@ -16,8 +16,8 @@ use actix_http::{
     Error,
 };
 use actix_service::{Service, Transform};
+use actix_utils::future::{ok, Ready};
 use futures_core::ready;
-use futures_util::future::{ok, Ready};
 use pin_project::pin_project;
 
 use crate::{

src/middleware/condition.rs

@@ -3,7 +3,9 @@
 use std::task::{Context, Poll};
 
 use actix_service::{Service, Transform};
-use futures_util::future::{Either, FutureExt, LocalBoxFuture};
+use actix_utils::future::Either;
+use futures_core::future::LocalBoxFuture;
+use futures_util::future::FutureExt as _;
 
 /// Middleware for conditionally enabling other middleware.
 ///
@@ -85,8 +87,8 @@ where
 
     fn call(&self, req: Req) -> Self::Future {
         match self {
-            ConditionMiddleware::Enable(service) => Either::Left(service.call(req)),
+            ConditionMiddleware::Enable(service) => Either::left(service.call(req)),
-            ConditionMiddleware::Disable(service) => Either::Right(service.call(req)),
+            ConditionMiddleware::Disable(service) => Either::right(service.call(req)),
         }
     }
 }
@@ -94,7 +96,7 @@ where
 #[cfg(test)]
 mod tests {
     use actix_service::IntoService;
-    use futures_util::future::ok;
+    use actix_utils::future::ok;
 
     use super::*;
     use crate::{

src/middleware/default_headers.rs

@@ -9,10 +9,8 @@ use std::{
     task::{Context, Poll},
 };
 
-use futures_util::{
+use actix_utils::future::{ready, Ready};
-    future::{ready, Ready},
+use futures_core::ready;
-    ready,
-};
 
 use crate::{
     dev::{Service, Transform},
@@ -188,7 +186,7 @@ where
 #[cfg(test)]
 mod tests {
     use actix_service::IntoService;
-    use futures_util::future::ok;
+    use actix_utils::future::ok;
 
     use super::*;
     use crate::{

src/middleware/err_handlers.rs

@@ -175,7 +175,8 @@ where
 #[cfg(test)]
 mod tests {
     use actix_service::IntoService;
-    use futures_util::future::{ok, FutureExt};
+    use actix_utils::future::ok;
+    use futures_util::future::FutureExt as _;
 
     use super::*;
     use crate::http::{header::CONTENT_TYPE, HeaderValue, StatusCode};

src/middleware/logger.rs

@@ -13,8 +13,9 @@ use std::{
 };
 
 use actix_service::{Service, Transform};
+use actix_utils::future::{ok, Ready};
 use bytes::Bytes;
-use futures_util::future::{ok, Ready};
+use futures_core::ready;
 use log::{debug, warn};
 use regex::{Regex, RegexSet};
 use time::OffsetDateTime;
@@ -269,7 +270,7 @@ where
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         let this = self.project();
 
-        let res = match futures_util::ready!(this.fut.poll(cx)) {
+        let res = match ready!(this.fut.poll(cx)) {
             Ok(res) => res,
             Err(e) => return Poll::Ready(Err(e)),
         };
@@ -588,7 +589,7 @@ impl<'a> fmt::Display for FormatDisplay<'a> {
 #[cfg(test)]
 mod tests {
     use actix_service::{IntoService, Service, Transform};
-    use futures_util::future::ok;
+    use actix_utils::future::ok;
 
     use super::*;
     use crate::http::{header, StatusCode};

src/middleware/normalize.rs

@@ -2,8 +2,8 @@
 
 use actix_http::http::{PathAndQuery, Uri};
 use actix_service::{Service, Transform};
+use actix_utils::future::{ready, Ready};
 use bytes::Bytes;
-use futures_util::future::{ready, Ready};
 use regex::Regex;
 
 use crate::{

src/request.rs

@@ -5,7 +5,7 @@ use std::{fmt, net};
 use actix_http::http::{HeaderMap, Method, Uri, Version};
 use actix_http::{Error, Extensions, HttpMessage, Message, Payload, RequestHead};
 use actix_router::{Path, Url};
-use futures_util::future::{ok, Ready};
+use actix_utils::future::{ok, Ready};
 use smallvec::SmallVec;
 
 use crate::app_service::AppInitServiceState;

src/request_data.rs

@@ -1,7 +1,7 @@
 use std::{any::type_name, ops::Deref};
 
 use actix_http::error::{Error, ErrorInternalServerError};
-use futures_util::future;
+use actix_utils::future::{err, ok, Ready};
 
 use crate::{dev::Payload, FromRequest, HttpRequest};
 
@@ -67,11 +67,11 @@ impl<T: Clone + 'static> Deref for ReqData<T> {
 impl<T: Clone + 'static> FromRequest for ReqData<T> {
     type Config = ();
     type Error = Error;
-    type Future = future::Ready<Result<Self, Error>>;
+    type Future = Ready<Result<Self, Error>>;
 
     fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future {
         if let Some(st) = req.extensions().get::<T>() {
-            future::ok(ReqData(st.clone()))
+            ok(ReqData(st.clone()))
         } else {
             log::debug!(
                 "Failed to construct App-level ReqData extractor. \
@@ -79,7 +79,7 @@ impl<T: Clone + 'static> FromRequest for ReqData<T> {
                 req.path(),
                 type_name::<T>(),
             );
-            future::err(ErrorInternalServerError(
+            err(ErrorInternalServerError(
                 "Missing expected request extension data",
             ))
         }

src/resource.rs

@@ -519,7 +519,7 @@ mod tests {
 
     use actix_rt::time::sleep;
     use actix_service::Service;
-    use futures_util::future::ok;
+    use actix_utils::future::ok;
 
     use crate::http::{header, HeaderValue, Method, StatusCode};
     use crate::middleware::DefaultHeaders;

src/scope.rs

@@ -575,8 +575,8 @@ impl ServiceFactory<ServiceRequest> for ScopeEndpoint {
 #[cfg(test)]
 mod tests {
     use actix_service::Service;
+    use actix_utils::future::ok;
     use bytes::Bytes;
-    use futures_util::future::ok;
 
     use crate::dev::{Body, ResponseBody};
     use crate::http::{header, HeaderValue, Method, StatusCode};

src/service.rs

@@ -602,7 +602,7 @@ mod tests {
     use crate::test::{init_service, TestRequest};
     use crate::{guard, http, web, App, HttpResponse};
     use actix_service::Service;
-    use futures_util::future::ok;
+    use actix_utils::future::ok;
 
     #[actix_rt::test]
     async fn test_service() {

src/test.rs

@@ -15,12 +15,12 @@ use actix_http::{ws, Extensions, HttpService, Request};
 use actix_router::{Path, ResourceDef, Url};
 use actix_rt::{time::sleep, System};
 use actix_service::{map_config, IntoService, IntoServiceFactory, Service, ServiceFactory};
+use actix_utils::future::ok;
 use awc::error::PayloadError;
 use awc::{Client, ClientRequest, ClientResponse, Connector};
 use bytes::{Bytes, BytesMut};
 use futures_core::Stream;
-use futures_util::future::ok;
+use futures_util::StreamExt as _;
-use futures_util::StreamExt;
 use serde::de::DeserializeOwned;
 use serde::Serialize;
 use socket2::{Domain, Protocol, Socket, Type};

src/types/either.rs

@@ -1,7 +1,8 @@
 //! For either helper, see [`Either`].
 
 use bytes::Bytes;
-use futures_util::{future::LocalBoxFuture, FutureExt, TryFutureExt};
+use futures_core::future::LocalBoxFuture;
+use futures_util::{FutureExt as _, TryFutureExt as _};
 
 use crate::{
     dev,

src/types/form.rs

@@ -12,10 +12,8 @@ use std::{
 use actix_http::Payload;
 use bytes::BytesMut;
 use encoding_rs::{Encoding, UTF_8};
-use futures_util::{
+use futures_core::future::LocalBoxFuture;
-    future::{FutureExt, LocalBoxFuture},
+use futures_util::{FutureExt as _, StreamExt as _};
-    StreamExt,
-};
 use serde::{de::DeserializeOwned, Serialize};
 
 #[cfg(feature = "compress")]

src/types/json.rs

@@ -11,7 +11,7 @@ use std::{
 };
 
 use bytes::BytesMut;
-use futures_util::{ready, stream::Stream};
+use futures_core::{ready, stream::Stream as _};
 use serde::{de::DeserializeOwned, Serialize};
 
 use actix_http::Payload;

src/types/path.rs

@@ -4,7 +4,7 @@ use std::{fmt, ops, sync::Arc};
 
 use actix_http::error::{Error, ErrorNotFound};
 use actix_router::PathDeserializer;
-use futures_util::future::{ready, Ready};
+use actix_utils::future::{ready, Ready};
 use serde::de;
 
 use crate::{dev::Payload, error::PathError, FromRequest, HttpRequest};

src/types/payload.rs

@@ -8,13 +8,10 @@ use std::{
 };
 
 use actix_http::error::{ErrorBadRequest, PayloadError};
+use actix_utils::future::{ready, Either, Ready};
 use bytes::{Bytes, BytesMut};
 use encoding_rs::{Encoding, UTF_8};
-use futures_core::stream::Stream;
+use futures_core::{ready, stream::Stream};
-use futures_util::{
-    future::{ready, Either, ErrInto, Ready, TryFutureExt as _},
-    ready,
-};
 use mime::Mime;
 
 use crate::{dev, http::header, web, Error, FromRequest, HttpMessage, HttpRequest};
@@ -26,7 +23,7 @@ use crate::{dev, http::header, web, Error, FromRequest, HttpMessage, HttpRequest
 /// # Examples
 /// ```
 /// use std::future::Future;
-/// use futures_util::stream::{Stream, StreamExt};
+/// use futures_util::stream::StreamExt as _;
 /// use actix_web::{post, web};
 ///
 /// // `body: web::Payload` parameter extracts raw payload stream from request
@@ -91,7 +88,7 @@ impl FromRequest for Payload {
 impl FromRequest for Bytes {
     type Config = PayloadConfig;
     type Error = Error;
-    type Future = Either<ErrInto<HttpMessageBody, Error>, Ready<Result<Bytes, Error>>>;
+    type Future = Either<BytesExtractFut, Ready<Result<Bytes, Error>>>;
 
     #[inline]
     fn from_request(req: &HttpRequest, payload: &mut dev::Payload) -> Self::Future {
@@ -99,12 +96,25 @@ impl FromRequest for Bytes {
         let cfg = PayloadConfig::from_req(req);
 
         if let Err(err) = cfg.check_mimetype(req) {
-            return Either::Right(ready(Err(err)));
+            return Either::right(ready(Err(err)));
         }
 
-        let limit = cfg.limit;
+        Either::left(BytesExtractFut {
-        let fut = HttpMessageBody::new(req, payload).limit(limit);
+            body_fut: HttpMessageBody::new(req, payload).limit(cfg.limit),
-        Either::Left(fut.err_into())
+        })
+    }
+}
+
+/// Future for `Bytes` extractor.
+pub struct BytesExtractFut {
+    body_fut: HttpMessageBody,
+}
+
+impl<'a> Future for BytesExtractFut {
+    type Output = Result<Bytes, Error>;
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        Pin::new(&mut self.body_fut).poll(cx).map_err(Into::into)
     }
 }
 
@@ -135,21 +145,22 @@ impl FromRequest for String {
 
         // check content-type
         if let Err(err) = cfg.check_mimetype(req) {
-            return Either::Right(ready(Err(err)));
+            return Either::right(ready(Err(err)));
         }
 
         // check charset
         let encoding = match req.encoding() {
             Ok(enc) => enc,
-            Err(err) => return Either::Right(ready(Err(err.into()))),
+            Err(err) => return Either::right(ready(Err(err.into()))),
         };
         let limit = cfg.limit;
         let body_fut = HttpMessageBody::new(req, payload).limit(limit);
 
-        Either::Left(StringExtractFut { body_fut, encoding })
+        Either::left(StringExtractFut { body_fut, encoding })
     }
 }
 
+/// Future for `String` extractor.
 pub struct StringExtractFut {
     body_fut: HttpMessageBody,
     encoding: &'static Encoding,

src/types/query.rs

@@ -2,7 +2,7 @@
 
 use std::{fmt, ops, sync::Arc};
 
-use futures_util::future::{err, ok, Ready};
+use actix_utils::future::{err, ok, Ready};
 use serde::de;
 
 use crate::{dev::Payload, error::QueryPayloadError, Error, FromRequest, HttpRequest};

src/types/readlines.rs

@@ -177,7 +177,7 @@ where
 
 #[cfg(test)]
 mod tests {
-    use futures_util::stream::StreamExt;
+    use futures_util::stream::StreamExt as _;
 
     use super::*;
     use crate::test::TestRequest;

tests/test_server.rs

@@ -20,7 +20,7 @@ use flate2::{
     write::{GzEncoder, ZlibDecoder, ZlibEncoder},
     Compression,
 };
-use futures_util::ready;
+use futures_core::ready;
 #[cfg(feature = "openssl")]
 use openssl::{
     pkey::PKey,