prepare actix-utils release 3.0.1

Co-authored-by: Rob Ede <robjtede@icloud.com>

.cargo/config.toml

@@ -14,13 +14,10 @@ ci-check = "hack --workspace --feature-powerset --exclude-features=io-uring chec
 ci-check-linux = "hack --workspace --feature-powerset check --tests --examples"
 
 # tests avoiding io-uring feature
-ci-test = "       hack --feature-powerset --exclude=actix-rt --exclude=actix-server --exclude-features=io-uring test --workspace --lib --tests --no-fail-fast -- --nocapture"
-ci-test-rt = "    hack --feature-powerset --exclude-features=io-uring test --package=actix-rt     --lib --tests --no-fail-fast -- --nocapture"
-ci-test-server = "hack --feature-powerset --exclude-features=io-uring test --package=actix-server --lib --tests --no-fail-fast -- --nocapture"
+ci-test = "hack --feature-powerset --exclude-features=io-uring test --lib --tests --no-fail-fast -- --nocapture"
+
+# tests avoiding io-uring feature on Windows
+ci-test-win = "hack --feature-powerset --depth 2 --exclude-features=io-uring test --lib --tests --no-fail-fast -- --nocapture"
 
 # test with io-uring feature
-ci-test-rt-linux = "    hack --feature-powerset test --package=actix-rt     --lib --tests --no-fail-fast -- --nocapture"
-ci-test-server-linux = "hack --feature-powerset test --package=actix-server --lib --tests --no-fail-fast -- --nocapture"
-
-# test lower msrv
-ci-test-lower-msrv = "hack --workspace --exclude=actix-server --exclude=actix-tls --feature-powerset test --lib --tests --no-fail-fast -- --nocapture"
+ci-test-linux = "    hack --feature-powerset test --lib --tests --no-fail-fast -- --nocapture"

.github/workflows/ci-master.yml

@@ -0,0 +1,210 @@
+name: CI (master only)
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  build_and_test_nightly:
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+          - { name: Linux, os: ubuntu-latest, triple: x86_64-unknown-linux-gnu }
+          - { name: macOS, os: macos-latest, triple: x86_64-apple-darwin }
+          - { name: Windows, os: windows-latest, triple: x86_64-pc-windows-msvc }
+          - { name: Windows (MinGW), os: windows-latest, triple: x86_64-pc-windows-gnu }
+          - { name: Windows (32-bit), os: windows-latest, triple: i686-pc-windows-msvc }
+        version:
+          - nightly
+
+    name: ${{ matrix.target.name }} / ${{ matrix.version }}
+    runs-on: ${{ matrix.target.os }}
+
+    env:
+      VCPKGRS_DYNAMIC: 1
+
+    steps:
+      - name: Setup Routing
+        if: matrix.target.os == 'macos-latest'
+        run: sudo ifconfig lo0 alias 127.0.0.3
+
+      - uses: actions/checkout@v2
+
+      # install OpenSSL on Windows
+      - name: Set vcpkg root
+        if: matrix.target.triple == 'x86_64-pc-windows-msvc' || matrix.target.triple == 'i686-pc-windows-msvc'
+        run: echo "VCPKG_ROOT=$env:VCPKG_INSTALLATION_ROOT" | Out-File -FilePath $env:GITHUB_ENV -Append
+      - name: Install OpenSSL
+        if: matrix.target.triple == 'x86_64-pc-windows-msvc'
+        run: vcpkg install openssl:x64-windows
+      - name: Install OpenSSL
+        if: matrix.target.triple == 'i686-pc-windows-msvc'
+        run: vcpkg install openssl:x86-windows
+
+      - name: Install ${{ matrix.version }}
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.version }}-${{ matrix.target.triple }}
+          profile: minimal
+          override: true
+
+      # - name: Install MSYS2
+      #   if: matrix.target.triple == 'x86_64-pc-windows-gnu'
+      #   uses: msys2/setup-msys2@v2
+      # - name: Install MinGW Packages
+      #   if: matrix.target.triple == 'x86_64-pc-windows-gnu'
+      #   run: |
+      #     msys2 -c 'pacman -Sy --noconfirm pacman'
+      #     msys2 -c 'pacman --noconfirm -S base-devel pkg-config'
+
+      # - name: Generate Cargo.lock
+      #   uses: actions-rs/cargo@v1
+      #   with: { command: generate-lockfile }
+      # - name: Cache Dependencies
+      #   uses: Swatinem/rust-cache@v1.2.0
+
+      - name: Install cargo-hack
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-hack
+
+      - name: check lib
+        if: >
+          matrix.target.os != 'ubuntu-latest'
+          && matrix.target.triple != 'x86_64-pc-windows-gnu'
+        uses: actions-rs/cargo@v1
+        with: { command: ci-check-lib }
+      - name: check lib
+        if: matrix.target.os == 'ubuntu-latest'
+        uses: actions-rs/cargo@v1
+        with: { command: ci-check-lib-linux }
+      - name: check lib
+        if: matrix.target.triple == 'x86_64-pc-windows-gnu'
+        uses: actions-rs/cargo@v1
+        with: { command: ci-check-min }
+      
+      - name: check full
+        # TODO: compile OpenSSL and run tests on MinGW
+        if: >
+          matrix.target.os != 'ubuntu-latest'
+          && matrix.target.triple != 'x86_64-pc-windows-gnu'
+        uses: actions-rs/cargo@v1
+        with: { command: ci-check }
+      - name: check all
+        if: matrix.target.os == 'ubuntu-latest'
+        uses: actions-rs/cargo@v1
+        with: { command: ci-check-linux }
+
+      - name: tests
+        if: >
+          matrix.target.os != 'ubuntu-latest'
+          && matrix.target.triple != 'x86_64-pc-windows-gnu'
+        run: cargo ci-test
+      - name: tests
+        if: matrix.target.os == 'ubuntu-latest'
+        run: |
+          sudo bash -c "ulimit -Sl 512 && ulimit -Hl 512 && PATH=$PATH:/usr/share/rust/.cargo/bin && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test-linux"
+
+      - name: Clear the cargo caches
+        run: |
+          cargo install cargo-cache --version 0.6.2 --no-default-features --features ci-autoclean
+          cargo-cache
+
+  coverage:
+    name: coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust (nightly)
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with: { command: generate-lockfile }
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.3.0
+    
+      - name: Generate coverage file
+        if: github.ref == 'refs/heads/master'
+        run: |
+          cargo install cargo-tarpaulin
+          cargo tarpaulin --out Xml --verbose
+      - name: Upload to Codecov
+        if: github.ref == 'refs/heads/master'
+        uses: codecov/codecov-action@v1
+        with: { file: cobertura.xml }
+
+  minimal-versions:
+    name: minimal versions
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust (nightly)
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with: { command: generate-lockfile }
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.3.0
+
+      - name: Install cargo-minimal-versions
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-minimal-versions
+
+      - name: Install cargo-hack
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-hack
+
+      - name: Check With Minimal Versions
+        uses: actions-rs/cargo@v1
+        with:
+          command: minimal-versions
+          args: check
+
+  nextest:
+    name: nextest
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with: { command: generate-lockfile }
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.3.0
+
+      - name: Install cargo-nextest
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-nextest
+
+      - name: Test with cargo-nextest
+        uses: actions-rs/cargo@v1
+        with:
+          command: nextest
+          args: run

.github/workflows/ci.yml

@@ -18,9 +18,8 @@ jobs:
           - { name: Windows (MinGW), os: windows-latest, triple: x86_64-pc-windows-gnu }
           - { name: Windows (32-bit), os: windows-latest, triple: i686-pc-windows-msvc }
         version:
-          - 1.52.0 # MSRV for -server and -tls
+          - 1.57.0
           - stable
-          - nightly
 
     name: ${{ matrix.target.name }} / ${{ matrix.version }}
     runs-on: ${{ matrix.target.os }}
@@ -74,6 +73,10 @@ jobs:
           command: install
           args: cargo-hack
 
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with: { command: generate-lockfile }
+
       - name: check lib
         if: >
           matrix.target.os != 'ubuntu-latest'
@@ -88,7 +91,7 @@ jobs:
         if: matrix.target.triple == 'x86_64-pc-windows-gnu'
         uses: actions-rs/cargo@v1
         with: { command: ci-check-min }
-      
+
       - name: check full
         # TODO: compile OpenSSL and run tests on MinGW
         if: >
@@ -101,80 +104,23 @@ jobs:
         uses: actions-rs/cargo@v1
         with: { command: ci-check-linux }
 
+      - name: tests
+        if: matrix.target.os == 'macos-latest'
+        run: cargo ci-test
       - name: tests
         if: >
-          matrix.target.os != 'ubuntu-latest'
+          matrix.target.os == 'windows-latest'
           && matrix.target.triple != 'x86_64-pc-windows-gnu'
-        run: |
-          cargo ci-test
-          cargo ci-test-rt
-          cargo ci-test-server
+        run: cargo ci-test-win
       - name: tests
         if: matrix.target.os == 'ubuntu-latest'
         run: |
-          sudo bash -c "ulimit -Sl 512 && ulimit -Hl 512 && PATH=$PATH:/usr/share/rust/.cargo/bin && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test-rt-linux && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test-server-linux"
+          sudo bash -c "ulimit -Sl 512 && ulimit -Hl 512 && PATH=$PATH:/usr/share/rust/.cargo/bin && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test && RUSTUP_TOOLCHAIN=${{ matrix.version }} cargo ci-test-linux"
 
       - name: Clear the cargo caches
         run: |
           cargo install cargo-cache --version 0.6.2 --no-default-features --features ci-autoclean
           cargo-cache
-  
-  build_and_test_lower_msrv:
-    name: Linux / 1.46 (lower MSRV)
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Install 1.46.0 # MSRV for all but -server and -tls
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.46.0-x86_64-unknown-linux-gnu
-          profile: minimal
-          override: true
-
-      - name: Install cargo-hack
-        uses: actions-rs/cargo@v1
-        with:
-          command: install
-          args: cargo-hack
-
-      - name: tests
-        run: |
-          sudo bash -c "ulimit -Sl 512 && ulimit -Hl 512 && PATH=$PATH:/usr/share/rust/.cargo/bin && RUSTUP_TOOLCHAIN=1.46 cargo ci-test-lower-msrv"
-
-      - name: Clear the cargo caches
-        run: |
-          cargo install cargo-cache --version 0.6.2 --no-default-features --features ci-autoclean
-          cargo-cache
-  
-  coverage:
-    name: coverage
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Install Rust (nightly)
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable-x86_64-unknown-linux-gnu
-          profile: minimal
-          override: true
-
-      - name: Generate Cargo.lock
-        uses: actions-rs/cargo@v1
-        with: { command: generate-lockfile }
-      - name: Cache Dependencies
-        uses: Swatinem/rust-cache@v1.3.0
-    
-      - name: Generate coverage file
-        if: github.ref == 'refs/heads/master'
-        run: |
-          cargo install cargo-tarpaulin
-          cargo tarpaulin --out Xml --verbose
-      - name: Upload to Codecov
-        if: github.ref == 'refs/heads/master'
-        uses: codecov/codecov-action@v1
-        with: { file: cobertura.xml }
 
   rustdoc:
     name: rustdoc

README.md

@@ -2,29 +2,25 @@
 
 > A collection of lower-level libraries for composable network services.
 
-![Apache 2.0 or MIT licensed](https://img.shields.io/crates/l/actix-server)
+[![CI](https://github.com/actix/actix-net/actions/workflows/ci.yml/badge.svg?event=push&style=flat-square)](https://github.com/actix/actix-net/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/actix/actix-net/branch/master/graph/badge.svg)](https://codecov.io/gh/actix/actix-net)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
+[![Dependency Status](https://deps.rs/repo/github/actix/actix-net/status.svg)](https://deps.rs/repo/github/actix/actix-net)
 
-## Build statuses
-| Platform         | Build Status |
-| ---------------- | ------------ |
-| Linux            | [![build status](https://github.com/actix/actix-net/workflows/CI%20%28Linux%29/badge.svg?branch=master&event=push)](https://github.com/actix/actix-net/actions?query=workflow%3A"CI+(Linux)") |
-| macOS            | [![build status](https://github.com/actix/actix-net/workflows/CI%20%28macOS%29/badge.svg?branch=master&event=push)](https://github.com/actix/actix-net/actions?query=workflow%3A"CI+(macOS)") |
-| Windows          | [![build status](https://github.com/actix/actix-net/workflows/CI%20%28Windows%29/badge.svg?branch=master&event=push)](https://github.com/actix/actix-net/actions?query=workflow%3A"CI+(Windows)") |
-| Windows (MinGW)  | [![build status](https://github.com/actix/actix-net/workflows/CI%20%28Windows-mingw%29/badge.svg?branch=master&event=push)](https://github.com/actix/actix-net/actions?query=workflow%3A"CI+(Windows-mingw)") |
+## Examples
 
-## Example
-See `actix-server/examples` and `actix-tls/examples` for some basic examples.
+See example folders for [`actix-server`](./actix-server/examples) and [`actix-tls`](./actix-tls/examples).
 
-### MSRV
-This repo's Minimum Supported Rust Version (MSRV) is 1.46.0.
+## MSRV
+
+Most crates in this repo's have a Minimum Supported Rust Version (MSRV) of 1.49.0. Only `actix-tls` and `actix-server` have MSRV of 1.54.0. As a policy, we permit MSRV increases in non-breaking releases.
 
 ## License
-This project is licensed under either of
 
-* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0))
-* MIT license ([LICENSE-MIT](LICENSE-MIT) or [http://opensource.org/licenses/MIT](http://opensource.org/licenses/MIT))
+The crates in repo are licensed under either of:
+
+- Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0))
+- MIT license ([LICENSE-MIT](LICENSE-MIT) or [http://opensource.org/licenses/MIT](http://opensource.org/licenses/MIT))
 
 at your option.
 

actix-codec/CHANGES.md

@@ -1,71 +1,89 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+
+## 0.5.1 - 2022-03-15
+- Logs emitted now use the `tracing` crate with `log` compatibility. [#451]
+- Minimum supported Rust version (MSRV) is now 1.49.
+
+[#451]: https://github.com/actix/actix-net/pull/451
+
+
+## 0.5.0 - 2022-02-15
+- Updated `tokio-util` dependency to `0.7.0`. [#446]
+
+[#446]: https://github.com/actix/actix-net/pull/446
+
+
+## 0.4.2 - 2021-12-31
+- No significant changes since `0.4.1`.
 
 
 ## 0.4.1 - 2021-11-05
-* Added `LinesCodec.` [#338]
-* `Framed::poll_ready` flushes when the buffer is full. [#409]
+- Added `LinesCodec.` [#338]
+- `Framed::poll_ready` flushes when the buffer is full. [#409]
 
 [#338]: https://github.com/actix/actix-net/pull/338
 [#409]: https://github.com/actix/actix-net/pull/409
 
 
 ## 0.4.0 - 2021-04-20
-* No significant changes since v0.4.0-beta.1.
+- No significant changes since v0.4.0-beta.1.
 
 
 ## 0.4.0-beta.1 - 2020-12-28
-* Replace `pin-project` with `pin-project-lite`. [#237]
-* Upgrade `tokio` dependency to `1`. [#237]
-* Upgrade `tokio-util` dependency to `0.6`. [#237]
-* Upgrade `bytes` dependency to `1`. [#237]
+- Replace `pin-project` with `pin-project-lite`. [#237]
+- Upgrade `tokio` dependency to `1`. [#237]
+- Upgrade `tokio-util` dependency to `0.6`. [#237]
+- Upgrade `bytes` dependency to `1`. [#237]
 
 [#237]: https://github.com/actix/actix-net/pull/237
 
 
 ## 0.3.0 - 2020-08-23
-* No changes from beta 2.
+- No changes from beta 2.
 
 
 ## 0.3.0-beta.2 - 2020-08-19
-* Remove unused type parameter from `Framed::replace_codec`.
+- Remove unused type parameter from `Framed::replace_codec`.
 
 
 ## 0.3.0-beta.1 - 2020-08-19
-* Use `.advance()` instead of `.split_to()`.
-* Upgrade `tokio-util` to `0.3`.
-* Improve `BytesCodec::encode()` performance.
-* Simplify `BytesCodec::decode()`.
-* Rename methods on `Framed` to better describe their use.
-* Add method on `Framed` to get a pinned reference to the underlying I/O.
-* Add method on `Framed` check emptiness of read buffer.
+- Use `.advance()` instead of `.split_to()`.
+- Upgrade `tokio-util` to `0.3`.
+- Improve `BytesCodec::encode()` performance.
+- Simplify `BytesCodec::decode()`.
+- Rename methods on `Framed` to better describe their use.
+- Add method on `Framed` to get a pinned reference to the underlying I/O.
+- Add method on `Framed` check emptiness of read buffer.
 
 
 ## 0.2.0 - 2019-12-10
-* Use specific futures dependencies.
+- Use specific futures dependencies.
 
 
 ## 0.2.0-alpha.4
-* Fix buffer remaining capacity calculation.
+- Fix buffer remaining capacity calculation.
 
 
 ## 0.2.0-alpha.3
-* Use tokio 0.2.
-* Fix low/high watermark for write/read buffers.
+- Use tokio 0.2.
+- Fix low/high watermark for write/read buffers.
 
 
 ## 0.2.0-alpha.2
-* Migrated to `std::future`.
+- Migrated to `std::future`.
 
 
 ## 0.1.2 - 2019-03-27
-* Added `Framed::map_io()` method.
+- Added `Framed::map_io()` method.
 
 
 ## 0.1.1 - 2019-03-06
-* Added `FramedParts::with_read_buffer()` method.
+- Added `FramedParts::with_read_buffer()` method.
 
 
 ## 0.1.0 - 2018-12-09
-* Move codec to separate crate.
+- Move codec to separate crate.

actix-codec/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-codec"
-version = "0.4.1"
+version = "0.5.1"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -17,15 +17,15 @@ name = "actix_codec"
 path = "src/lib.rs"
 
 [dependencies]
-bitflags = "1.2.1"
+bitflags = "1.2"
 bytes = "1"
 futures-core = { version = "0.3.7", default-features = false }
 futures-sink = { version = "0.3.7", default-features = false }
-log = "0.4"
 memchr = "2.3"
 pin-project-lite = "0.2"
-tokio = "1.5.1"
-tokio-util = { version = "0.6", features = ["codec", "io"] }
+tokio = "1.13.1"
+tokio-util = { version = "0.7", features = ["codec", "io"] }
+tracing = { version = "0.1.30", default-features = false, features = ["log"] }
 
 [dev-dependencies]
 criterion = { version = "0.3", features = ["html_reports"] }

actix-codec/src/framed.rs

@@ -1,10 +1,14 @@
-use std::pin::Pin;
-use std::task::{Context, Poll};
-use std::{fmt, io};
+use std::{
+    fmt, io,
+    pin::Pin,
+    task::{Context, Poll},
+};
 
+use bitflags::bitflags;
 use bytes::{Buf, BytesMut};
 use futures_core::{ready, Stream};
 use futures_sink::Sink;
+use pin_project_lite::pin_project;
 
 use crate::{AsyncRead, AsyncWrite, Decoder, Encoder};
 
@@ -13,14 +17,14 @@ const LW: usize = 1024;
 /// High-water mark
 const HW: usize = 8 * 1024;
 
-bitflags::bitflags! {
+bitflags! {
     struct Flags: u8 {
         const EOF = 0b0001;
         const READABLE = 0b0010;
     }
 }
 
-pin_project_lite::pin_project! {
+pin_project! {
     /// A unified `Stream` and `Sink` interface to an underlying I/O object, using the `Encoder` and
     /// `Decoder` traits to encode and decode frames.
     ///
@@ -152,7 +156,7 @@ impl<T, U> Framed<T, U> {
 }
 
 impl<T, U> Framed<T, U> {
-    /// Serialize item and Write to the inner buffer
+    /// Serialize item and write to the inner buffer
     pub fn write<I>(mut self: Pin<&mut Self>, item: I) -> Result<(), <U as Encoder<I>>::Error>
     where
         T: AsyncWrite,
@@ -189,18 +193,18 @@ impl<T, U> Framed<T, U> {
                     match this.codec.decode_eof(this.read_buf) {
                         Ok(Some(frame)) => return Poll::Ready(Some(Ok(frame))),
                         Ok(None) => return Poll::Ready(None),
-                        Err(e) => return Poll::Ready(Some(Err(e))),
+                        Err(err) => return Poll::Ready(Some(Err(err))),
                     }
                 }
 
-                log::trace!("attempting to decode a frame");
+                tracing::trace!("attempting to decode a frame");
 
                 match this.codec.decode(this.read_buf) {
                     Ok(Some(frame)) => {
-                        log::trace!("frame decoded from buffer");
+                        tracing::trace!("frame decoded from buffer");
                         return Poll::Ready(Some(Ok(frame)));
                     }
-                    Err(e) => return Poll::Ready(Some(Err(e))),
+                    Err(err) => return Poll::Ready(Some(Err(err))),
                     _ => (), // Need more data
                 }
 
@@ -217,7 +221,7 @@ impl<T, U> Framed<T, U> {
 
             let cnt = match tokio_util::io::poll_read_buf(this.io, cx, this.read_buf) {
                 Poll::Pending => return Poll::Pending,
-                Poll::Ready(Err(e)) => return Poll::Ready(Some(Err(e.into()))),
+                Poll::Ready(Err(err)) => return Poll::Ready(Some(Err(err.into()))),
                 Poll::Ready(Ok(cnt)) => cnt,
             };
 
@@ -238,10 +242,10 @@ impl<T, U> Framed<T, U> {
         U: Encoder<I>,
     {
         let mut this = self.as_mut().project();
-        log::trace!("flushing framed transport");
+        tracing::trace!("flushing framed transport");
 
         while !this.write_buf.is_empty() {
-            log::trace!("writing; remaining={}", this.write_buf.len());
+            tracing::trace!("writing; remaining={}", this.write_buf.len());
 
             let n = ready!(this.io.as_mut().poll_write(cx, this.write_buf))?;
 
@@ -260,7 +264,7 @@ impl<T, U> Framed<T, U> {
         // Try flushing the underlying IO
         ready!(this.io.poll_flush(cx))?;
 
-        log::trace!("framed transport flushed");
+        tracing::trace!("framed transport flushed");
         Poll::Ready(Ok(()))
     }
 

actix-codec/src/lib.rs

@@ -7,8 +7,8 @@
 //! [`Sink`]: futures_sink::Sink
 //! [`Stream`]: futures_core::Stream
 
-#![deny(rust_2018_idioms, nonstandard_style, future_incompatible)]
-#![warn(missing_docs)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible, missing_docs)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 
@@ -16,10 +16,10 @@ mod bcodec;
 mod framed;
 mod lines;
 
-pub use self::bcodec::BytesCodec;
-pub use self::framed::{Framed, FramedParts};
-pub use self::lines::LinesCodec;
-
 pub use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
 pub use tokio_util::codec::{Decoder, Encoder};
 pub use tokio_util::io::poll_read_buf;
+
+pub use self::bcodec::BytesCodec;
+pub use self::framed::{Framed, FramedParts};
+pub use self::lines::LinesCodec;

actix-codec/src/lines.rs

@@ -7,8 +7,8 @@ use super::{Decoder, Encoder};
 
 /// Lines codec. Reads/writes line delimited strings.
 ///
-/// Will split input up by LF or CRLF delimiters. I.e. carriage return characters at the end of
-/// lines are not preserved.
+/// Will split input up by LF or CRLF delimiters. Carriage return characters at the end of lines are
+/// not preserved.
 #[derive(Debug, Copy, Clone, Default)]
 #[non_exhaustive]
 pub struct LinesCodec;

actix-codec/tests/test_framed_sink.rs

@@ -1,12 +1,16 @@
+use std::{
+    collections::VecDeque,
+    io::{self, Write},
+    pin::Pin,
+    task::{
+        Context,
+        Poll::{self, Pending, Ready},
+    },
+};
+
 use actix_codec::*;
-use bytes::Buf;
-use bytes::{BufMut, BytesMut};
+use bytes::{Buf as _, BufMut as _, BytesMut};
 use futures_sink::Sink;
-use std::collections::VecDeque;
-use std::io::{self, Write};
-use std::pin::Pin;
-use std::task::Poll::{Pending, Ready};
-use std::task::{Context, Poll};
 use tokio_test::{assert_ready, task};
 
 macro_rules! bilateral {
@@ -50,7 +54,7 @@ impl Write for Bilateral {
                 assert_eq!(&data[..], &src[..data.len()]);
                 Ok(data.len())
             }
-            Some(Err(e)) => Err(e),
+            Some(Err(err)) => Err(err),
             None => panic!("unexpected write; {:?}", src),
         }
     }
@@ -67,13 +71,13 @@ impl AsyncWrite for Bilateral {
         buf: &[u8],
     ) -> Poll<Result<usize, io::Error>> {
         match Pin::get_mut(self).write(buf) {
-            Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => Pending,
+            Err(ref err) if err.kind() == io::ErrorKind::WouldBlock => Pending,
             other => Ready(other),
         }
     }
     fn poll_flush(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
         match Pin::get_mut(self).flush() {
-            Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => Pending,
+            Err(ref err) if err.kind() == io::ErrorKind::WouldBlock => Pending,
             other => Ready(other),
         }
     }
@@ -99,8 +103,8 @@ impl AsyncRead for Bilateral {
                 buf.put_slice(&data);
                 Ready(Ok(()))
             }
-            Some(Err(ref e)) if e.kind() == WouldBlock => Pending,
-            Some(Err(e)) => Ready(Err(e)),
+            Some(Err(ref err)) if err.kind() == WouldBlock => Pending,
+            Some(Err(err)) => Ready(Err(err)),
             None => Ready(Ok(())),
         }
     }

actix-macros/CHANGES.md

@@ -1,46 +1,47 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
 
 
 ## 0.2.3 - 2021-10-19
-* Fix test macro in presence of other imports named "test". [#399]
+- Fix test macro in presence of other imports named "test". [#399]
 
 [#399]: https://github.com/actix/actix-net/pull/399
 
 
 ## 0.2.2 - 2021-10-14
-* Improve error recovery potential when macro input is invalid. [#391]
-* Allow custom `System`s on test macro. [#391]
+- Improve error recovery potential when macro input is invalid. [#391]
+- Allow custom `System`s on test macro. [#391]
 
 [#391]: https://github.com/actix/actix-net/pull/391
 
 
 ## 0.2.1 - 2021-02-02
-* Add optional argument `system` to `main` macro which can be used to specify the path to `actix_rt::System` (useful for re-exports). [#363]
+- Add optional argument `system` to `main` macro which can be used to specify the path to `actix_rt::System` (useful for re-exports). [#363]
 
 [#363]: https://github.com/actix/actix-net/pull/363
 
 
 ## 0.2.0 - 2021-02-02
-* Update to latest `actix_rt::System::new` signature. [#261]
+- Update to latest `actix_rt::System::new` signature. [#261]
 
 [#261]: https://github.com/actix/actix-net/pull/261
 
 
 ## 0.2.0-beta.1 - 2021-01-09
-* Remove `actix-reexport` feature. [#218]
+- Remove `actix-reexport` feature. [#218]
 
 [#218]: https://github.com/actix/actix-net/pull/218
 
 
 ## 0.1.3 - 2020-12-03
-* Add `actix-reexport` feature. [#218]
+- Add `actix-reexport` feature. [#218]
 
 [#218]: https://github.com/actix/actix-net/pull/218
 
 
 ## 0.1.2 - 2020-05-18
-* Forward actix_rt::test arguments to test function [#127]
+- Forward actix_rt::test arguments to test function [#127]
 
 [#127]: https://github.com/actix/actix-net/pull/127

actix-macros/src/lib.rs

@@ -9,6 +9,7 @@
 //! See docs for the [`#[test]`](macro@test) macro.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 

actix-rt/CHANGES.md

@@ -1,32 +1,55 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Add `#[track_caller]` attribute to `spawn` functions and methods. [#454]
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+[#454]: https://github.com/actix/actix-net/pull/454
+
+
+## 2.7.0 - 2022-03-08
+- Update `tokio-uring` dependency to `0.3.0`. [#448]
+- Minimum supported Rust version (MSRV) is now 1.49.
+
+[#448]: https://github.com/actix/actix-net/pull/448
+
+
+## 2.6.0 - 2022-01-12
+- Update `tokio-uring` dependency to `0.2.0`. [#436]
+
+[#436]: https://github.com/actix/actix-net/pull/436
+
+
+## 2.5.1 - 2021-12-31
+- Expose `System::with_tokio_rt` and `Arbiter::with_tokio_rt`. [#430]
+
+[#430]: https://github.com/actix/actix-net/pull/430
 
 
 ## 2.5.0 - 2021-11-22
-* Add `System::run_with_code` to allow retrieving the exit code on stop. [#411]
+- Add `System::run_with_code` to allow retrieving the exit code on stop. [#411]
 
 [#411]: https://github.com/actix/actix-net/pull/411
 
 
 ## 2.4.0 - 2021-11-05
-* Add `Arbiter::try_current` for situations where thread may or may not have Arbiter context. [#408]
-* Start io-uring with `System::new` when feature is enabled. [#395]
+- Add `Arbiter::try_current` for situations where thread may or may not have Arbiter context. [#408]
+- Start io-uring with `System::new` when feature is enabled. [#395]
 
 [#395]: https://github.com/actix/actix-net/pull/395
 [#408]: https://github.com/actix/actix-net/pull/408
 
 
 ## 2.3.0 - 2021-10-11
-* The `spawn` method can now resolve with non-unit outputs. [#369]
-* Add experimental (semver-exempt) `io-uring` feature for enabling async file I/O on linux. [#374]
+- The `spawn` method can now resolve with non-unit outputs. [#369]
+- Add experimental (semver-exempt) `io-uring` feature for enabling async file I/O on linux. [#374]
 
 [#369]: https://github.com/actix/actix-net/pull/369
 [#374]: https://github.com/actix/actix-net/pull/374
 
 
 ## 2.2.0 - 2021-03-29
-* **BREAKING** `ActixStream::{poll_read_ready, poll_write_ready}` methods now return
+- **BREAKING** `ActixStream::{poll_read_ready, poll_write_ready}` methods now return
   `Ready` object in ok variant. [#293]
   * Breakage is acceptable since `ActixStream` was not intended to be public.
 
@@ -34,51 +57,51 @@
 
 
 ## 2.1.0 - 2021-02-24
-* Add `ActixStream` extension trait to include readiness methods. [#276]
-* Re-export `tokio::net::TcpSocket` in `net` module [#282]
+- Add `ActixStream` extension trait to include readiness methods. [#276]
+- Re-export `tokio::net::TcpSocket` in `net` module [#282]
 
 [#276]: https://github.com/actix/actix-net/pull/276
 [#282]: https://github.com/actix/actix-net/pull/282
 
 
 ## 2.0.2 - 2021-02-06
-* Add `Arbiter::handle` to get a handle of an owned Arbiter. [#274]
-* Add `System::try_current` for situations where actix may or may not be running a System. [#275]
+- Add `Arbiter::handle` to get a handle of an owned Arbiter. [#274]
+- Add `System::try_current` for situations where actix may or may not be running a System. [#275]
 
 [#274]: https://github.com/actix/actix-net/pull/274
 [#275]: https://github.com/actix/actix-net/pull/275
 
 
 ## 2.0.1 - 2021-02-06
-* Expose `JoinError` from Tokio. [#271]
+- Expose `JoinError` from Tokio. [#271]
 
 [#271]: https://github.com/actix/actix-net/pull/271
 
 
 ## 2.0.0 - 2021-02-02
-* Remove all Arbiter-local storage methods. [#262]
-* Re-export `tokio::pin`. [#262]
+- Remove all Arbiter-local storage methods. [#262]
+- Re-export `tokio::pin`. [#262]
 
 [#262]: https://github.com/actix/actix-net/pull/262
 
 
 ## 2.0.0-beta.3 - 2021-01-31
-* Remove `run_in_tokio`, `attach_to_tokio` and `AsyncSystemRunner`. [#253]
-* Return `JoinHandle` from `actix_rt::spawn`. [#253]
-* Remove old `Arbiter::spawn`. Implementation is now inlined into `actix_rt::spawn`. [#253]
-* Rename `Arbiter::{send => spawn}` and `Arbiter::{exec_fn => spawn_fn}`. [#253]
-* Remove `Arbiter::exec`. [#253]
-* Remove deprecated `Arbiter::local_join` and `Arbiter::is_running`. [#253]
-* `Arbiter::spawn` now accepts !Unpin futures. [#256]
-* `System::new` no longer takes arguments. [#257]
-* Remove `System::with_current`. [#257]
-* Remove `Builder`. [#257]
-* Add `System::with_init` as replacement for `Builder::run`. [#257]
-* Rename `System::{is_set => is_registered}`. [#257]
-* Add `ArbiterHandle` for sending messages to non-current-thread arbiters. [#257].
-* `System::arbiter` now returns an `&ArbiterHandle`. [#257]
-* `Arbiter::current` now returns an `ArbiterHandle` instead. [#257]
-* `Arbiter::join` now takes self by value. [#257]
+- Remove `run_in_tokio`, `attach_to_tokio` and `AsyncSystemRunner`. [#253]
+- Return `JoinHandle` from `actix_rt::spawn`. [#253]
+- Remove old `Arbiter::spawn`. Implementation is now inlined into `actix_rt::spawn`. [#253]
+- Rename `Arbiter::{send => spawn}` and `Arbiter::{exec_fn => spawn_fn}`. [#253]
+- Remove `Arbiter::exec`. [#253]
+- Remove deprecated `Arbiter::local_join` and `Arbiter::is_running`. [#253]
+- `Arbiter::spawn` now accepts !Unpin futures. [#256]
+- `System::new` no longer takes arguments. [#257]
+- Remove `System::with_current`. [#257]
+- Remove `Builder`. [#257]
+- Add `System::with_init` as replacement for `Builder::run`. [#257]
+- Rename `System::{is_set => is_registered}`. [#257]
+- Add `ArbiterHandle` for sending messages to non-current-thread arbiters. [#257].
+- `System::arbiter` now returns an `&ArbiterHandle`. [#257]
+- `Arbiter::current` now returns an `ArbiterHandle` instead. [#257]
+- `Arbiter::join` now takes self by value. [#257]
 
 [#253]: https://github.com/actix/actix-net/pull/253
 [#254]: https://github.com/actix/actix-net/pull/254
@@ -87,37 +110,37 @@
 
 
 ## 2.0.0-beta.2 - 2021-01-09
-* Add `task` mod with re-export of `tokio::task::{spawn_blocking, yield_now, JoinHandle}` [#245]
-* Add default "macros" feature to allow faster compile times when using `default-features=false`.
+- Add `task` mod with re-export of `tokio::task::{spawn_blocking, yield_now, JoinHandle}` [#245]
+- Add default "macros" feature to allow faster compile times when using `default-features=false`.
 
 [#245]: https://github.com/actix/actix-net/pull/245
 
 
 ## 2.0.0-beta.1 - 2020-12-28
-* Add `System::attach_to_tokio` method. [#173]
-* Update `tokio` dependency to `1.0`. [#236]
-* Rename `time` module `delay_for` to `sleep`, `delay_until` to `sleep_until`, `Delay` to `Sleep`
+- Add `System::attach_to_tokio` method. [#173]
+- Update `tokio` dependency to `1.0`. [#236]
+- Rename `time` module `delay_for` to `sleep`, `delay_until` to `sleep_until`, `Delay` to `Sleep`
   to stay aligned with Tokio's naming. [#236]
-* Remove `'static` lifetime requirement for `Runtime::block_on` and `SystemRunner::block_on`.
+- Remove `'static` lifetime requirement for `Runtime::block_on` and `SystemRunner::block_on`.
   * These methods now accept `&self` when calling. [#236]
-* Remove `'static` lifetime requirement for `System::run` and `Builder::run`. [#236]
-* `Arbiter::spawn` now panics when `System` is not in scope. [#207]
-* Fix work load issue by removing `PENDING` thread local. [#207]
+- Remove `'static` lifetime requirement for `System::run` and `Builder::run`. [#236]
+- `Arbiter::spawn` now panics when `System` is not in scope. [#207]
+- Fix work load issue by removing `PENDING` thread local. [#207]
 
 [#207]: https://github.com/actix/actix-net/pull/207
 [#236]: https://github.com/actix/actix-net/pull/236
 
 
 ## 1.1.1 - 2020-04-30
-* Fix memory leak due to [#94] (see [#129] for more detail)
+- Fix memory leak due to [#94] (see [#129] for more detail)
 
 [#129]: https://github.com/actix/actix-net/issues/129
 
 
 ## 1.1.0 - 2020-04-08 _(YANKED)_
-* Expose `System::is_set` to check if current system has ben started [#99]
-* Add `Arbiter::is_running` to check if event loop is running [#124]
-* Add `Arbiter::local_join` associated function
+- Expose `System::is_set` to check if current system has ben started [#99]
+- Add `Arbiter::is_running` to check if event loop is running [#124]
+- Add `Arbiter::local_join` associated function
   to get be able to `await` for spawned futures [#94]
 
 [#94]: https://github.com/actix/actix-net/pull/94
@@ -126,55 +149,55 @@
 
 
 ## 1.0.0 - 2019-12-11
-* Update dependencies
+- Update dependencies
 
 
 ## 1.0.0-alpha.3 - 2019-12-07
-* Migrate to tokio 0.2
-* Fix compilation on non-unix platforms
+- Migrate to tokio 0.2
+- Fix compilation on non-unix platforms
 
 
 ## 1.0.0-alpha.2 - 2019-12-02
-* Export `main` and `test` attribute macros
-* Export `time` module (re-export of tokio-timer)
-* Export `net` module (re-export of tokio-net)
+- Export `main` and `test` attribute macros
+- Export `time` module (re-export of tokio-timer)
+- Export `net` module (re-export of tokio-net)
 
 
 ## 1.0.0-alpha.1 - 2019-11-22
-* Migrate to std::future and tokio 0.2
+- Migrate to std::future and tokio 0.2
 
 
 ## 0.2.6 - 2019-11-14
-* Allow to join arbiter's thread. #60
-* Fix arbiter's thread panic message.
+- Allow to join arbiter's thread. #60
+- Fix arbiter's thread panic message.
 
 
 ## 0.2.5 - 2019-09-02
-* Add arbiter specific storage
+- Add arbiter specific storage
 
 
 ## 0.2.4 - 2019-07-17
-* Avoid a copy of the Future when initializing the Box. #29
+- Avoid a copy of the Future when initializing the Box. #29
 
 
 ## 0.2.3 - 2019-06-22
-* Allow to start System using existing CurrentThread Handle #22
+- Allow to start System using existing CurrentThread Handle #22
 
 
 ## 0.2.2 - 2019-03-28
-* Moved `blocking` module to `actix-threadpool` crate
+- Moved `blocking` module to `actix-threadpool` crate
 
 
 ## 0.2.1 - 2019-03-11
-* Added `blocking` module
-* Added `Arbiter::exec_fn` - execute fn on the arbiter's thread
-* Added `Arbiter::exec` - execute fn on the arbiter's thread and wait result
+- Added `blocking` module
+- Added `Arbiter::exec_fn` - execute fn on the arbiter's thread
+- Added `Arbiter::exec` - execute fn on the arbiter's thread and wait result
 
 
 ## 0.2.0 - 2019-03-06
-* `run` method returns `io::Result<()>`
-* Removed `Handle`
+- `run` method returns `io::Result<()>`
+- Removed `Handle`
 
 
 ## 0.1.0 - 2018-12-09
-* Initial release
+- Initial release

actix-rt/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-rt"
-version = "2.5.0"
+version = "2.7.0"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -27,11 +27,12 @@ io-uring = ["tokio-uring"]
 actix-macros = { version = "0.2.3", optional = true }
 
 futures-core = { version = "0.3", default-features = false }
-tokio = { version = "1.5.1", features = ["rt", "net", "parking_lot", "signal", "sync", "time"] }
+tokio = { version = "1.13.1", features = ["rt", "net", "parking_lot", "signal", "sync", "time"] }
 
+# runtime for `io-uring` feature
 [target.'cfg(target_os = "linux")'.dependencies]
-tokio-uring = { version = "0.1", optional = true }
+tokio-uring = { version = "0.3", optional = true }
 
 [dev-dependencies]
-tokio = { version = "1.5.1", features = ["full"] }
-hyper = { version = "0.14", default-features = false, features = ["server", "tcp", "http1"] }
+tokio = { version = "1.13.1", features = ["full"] }
+hyper = { version = "0.14.10", default-features = false, features = ["server", "tcp", "http1"] }

actix-rt/README.md

@@ -3,11 +3,11 @@
 > Tokio-based single-threaded async runtime for the Actix ecosystem.
 
 [![crates.io](https://img.shields.io/crates/v/actix-rt?label=latest)](https://crates.io/crates/actix-rt)
-[![Documentation](https://docs.rs/actix-rt/badge.svg?version=2.5.0)](https://docs.rs/actix-rt/2.5.0)
+[![Documentation](https://docs.rs/actix-rt/badge.svg?version=2.7.0)](https://docs.rs/actix-rt/2.7.0)
 [![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-rt.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-rt/2.5.0/status.svg)](https://deps.rs/crate/actix-rt/2.5.0)
+[![dependency status](https://deps.rs/crate/actix-rt/2.7.0/status.svg)](https://deps.rs/crate/actix-rt/2.7.0)
 ![Download](https://img.shields.io/crates/d/actix-rt.svg)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/WghFtEH6Hb)
 

actix-rt/examples/hyper.rs

@@ -1,7 +1,9 @@
-use hyper::service::{make_service_fn, service_fn};
-use hyper::{Body, Request, Response, Server};
-use std::convert::Infallible;
-use std::net::SocketAddr;
+use std::{convert::Infallible, net::SocketAddr};
+
+use hyper::{
+    service::{make_service_fn, service_fn},
+    Body, Request, Response, Server,
+};
 
 async fn handle(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
     Ok(Response::new(Body::from("Hello World")))
@@ -21,8 +23,8 @@ fn main() {
         let server =
             Server::bind(&SocketAddr::from(([127, 0, 0, 1], 3000))).serve(make_service);
 
-        if let Err(e) = server.await {
-            eprintln!("server error: {}", e);
+        if let Err(err) = server.await {
+            eprintln!("server error: {}", err);
         }
     })
 }

actix-rt/src/arbiter.rs

@@ -108,7 +108,6 @@ impl Arbiter {
     ///
     /// [tokio-runtime]: tokio::runtime::Runtime
     #[cfg(not(all(target_os = "linux", feature = "io-uring")))]
-    #[doc(hidden)]
     pub fn with_tokio_rt<F>(runtime_factory: F) -> Arbiter
     where
         F: Fn() -> tokio::runtime::Runtime + Send + 'static,
@@ -261,6 +260,7 @@ impl Arbiter {
     /// If you require a result, include a response channel in the future.
     ///
     /// Returns true if future was sent successfully and false if the Arbiter has died.
+    #[track_caller]
     pub fn spawn<Fut>(&self, future: Fut) -> bool
     where
         Fut: Future<Output = ()> + Send + 'static,
@@ -276,6 +276,7 @@ impl Arbiter {
     /// channel in the function.
     ///
     /// Returns true if function was sent successfully and false if the Arbiter has died.
+    #[track_caller]
     pub fn spawn_fn<F>(&self, f: F) -> bool
     where
         F: FnOnce() + Send + 'static,

actix-rt/src/lib.rs

@@ -41,8 +41,8 @@
 //! In particular, when running a `System`, only `System::block_on` is supported.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible, missing_docs)]
 #![allow(clippy::type_complexity)]
-#![warn(missing_docs)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 
@@ -51,13 +51,10 @@ compile_error!("io_uring is a linux only feature.");
 
 use std::future::Future;
 
-use tokio::task::JoinHandle;
-
 // Cannot define a main macro when compiled into test harness.
 // Workaround for https://github.com/rust-lang/rust/issues/62127.
 #[cfg(all(feature = "macros", not(test)))]
 pub use actix_macros::main;
-
 #[cfg(feature = "macros")]
 pub use actix_macros::test;
 
@@ -65,12 +62,13 @@ mod arbiter;
 mod runtime;
 mod system;
 
+pub use tokio::pin;
+use tokio::task::JoinHandle;
+
 pub use self::arbiter::{Arbiter, ArbiterHandle};
 pub use self::runtime::Runtime;
 pub use self::system::{System, SystemRunner};
 
-pub use tokio::pin;
-
 pub mod signal {
     //! Asynchronous signal handling (Tokio re-exports).
 
@@ -95,7 +93,6 @@ pub mod net {
     use tokio::io::{AsyncRead, AsyncWrite, Interest};
     pub use tokio::net::UdpSocket;
     pub use tokio::net::{TcpListener, TcpSocket, TcpStream};
-
     #[cfg(unix)]
     pub use tokio::net::{UnixDatagram, UnixListener, UnixStream};
 
@@ -198,6 +195,7 @@ pub mod task {
 /// assert!(handle.await.unwrap_err().is_cancelled());
 /// # });
 /// ```
+#[track_caller]
 #[inline]
 pub fn spawn<Fut>(f: Fut) -> JoinHandle<Fut::Output>
 where

actix-rt/src/runtime.rs

@@ -53,6 +53,7 @@ impl Runtime {
     /// # Panics
     /// This function panics if the spawn fails. Failure occurs if the executor is currently at
     /// capacity and is unable to spawn a new future.
+    #[track_caller]
     pub fn spawn<F>(&self, future: F) -> JoinHandle<F::Output>
     where
         F: Future + 'static,
@@ -73,6 +74,7 @@ impl Runtime {
     ///
     /// The caller is responsible for ensuring that other spawned futures complete execution by
     /// calling `block_on` or `run`.
+    #[track_caller]
     pub fn block_on<F>(&self, f: F) -> F::Output
     where
         F: Future,

actix-rt/src/system.rs

@@ -46,7 +46,6 @@ impl System {
     /// Create a new System using the [Tokio Runtime](tokio-runtime) returned from a closure.
     ///
     /// [tokio-runtime]: tokio::runtime::Runtime
-    #[doc(hidden)]
     pub fn with_tokio_rt<F>(runtime_factory: F) -> SystemRunner
     where
         F: Fn() -> tokio::runtime::Runtime,
@@ -205,6 +204,7 @@ impl SystemRunner {
     }
 
     /// Runs the provided future, blocking the current thread until the future completes.
+    #[track_caller]
     #[inline]
     pub fn block_on<F: Future>(&self, fut: F) -> F::Output {
         self.rt.block_on(fut)

actix-rt/tests/tests.rs

@@ -4,7 +4,6 @@ use std::{
 };
 
 use actix_rt::{task::JoinError, Arbiter, System};
-
 #[cfg(not(feature = "io-uring"))]
 use {
     std::{sync::mpsc::channel, thread},

actix-server/CHANGES.md

@@ -1,40 +1,82 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+
+## 2.1.1 - 2022-03-09
+- No significant changes since `2.1.0`.
+
+
+## 2.1.0 - 2022-03-08
+- Update `tokio-uring` dependency to `0.3.0`. [#448]
+- Logs emitted now use the `tracing` crate with `log` compatibility. [#448]
+- Wait for accept thread to stop before sending completion signal. [#443]
+
+[#443]: https://github.com/actix/actix-net/pull/443
+[#448]: https://github.com/actix/actix-net/pull/448
+
+
+## 2.0.0 - 2022-01-19
+- No significant changes since `2.0.0-rc.4`.
+
+
+## 2.0.0-rc.4 - 2022-01-12
+- Update `tokio-uring` dependency to `0.2.0`. [#436]
+
+[#436]: https://github.com/actix/actix-net/pull/436
+
+
+## 2.0.0-rc.3 - 2021-12-31
+- No significant changes since `2.0.0-rc.2`.
+
+
+## 2.0.0-rc.2 - 2021-12-27
+- Simplify `TestServer`. [#431]
+
+[#431]: https://github.com/actix/actix-net/pull/431
+
+
+## 2.0.0-rc.1 - 2021-12-05
+- Hide implementation details of `Server`. [#424]
+- `Server` now runs only after awaiting it. [#425]
+
+[#424]: https://github.com/actix/actix-net/pull/424
+[#425]: https://github.com/actix/actix-net/pull/425
 
 
 ## 2.0.0-beta.9 - 2021-11-15
-* Restore `Arbiter` support lost in `beta.8`. [#417]
+- Restore `Arbiter` support lost in `beta.8`. [#417]
 
 [#417]: https://github.com/actix/actix-net/pull/417
 
 
 ## 2.0.0-beta.8 - 2021-11-05 _(YANKED)_
-* Fix non-unix signal handler. [#410]
+- Fix non-unix signal handler. [#410]
 
 [#410]: https://github.com/actix/actix-net/pull/410
 
 
 ## 2.0.0-beta.7 - 2021-11-05 _(YANKED)_
-* Server can be started in regular Tokio runtime. [#408]
-* Expose new `Server` type whose `Future` impl resolves when server stops. [#408]
-* Rename `Server` to `ServerHandle`. [#407]
-* Add `Server::handle` to obtain handle to server. [#408]
-* Rename `ServerBuilder::{maxconn => max_concurrent_connections}`. [#407]
-* Deprecate crate-level `new` shortcut for server builder. [#408]
-* Minimum supported Rust version (MSRV) is now 1.52.
+- Server can be started in regular Tokio runtime. [#408]
+- Expose new `Server` type whose `Future` impl resolves when server stops. [#408]
+- Rename `Server` to `ServerHandle`. [#407]
+- Add `Server::handle` to obtain handle to server. [#408]
+- Rename `ServerBuilder::{maxconn => max_concurrent_connections}`. [#407]
+- Deprecate crate-level `new` shortcut for server builder. [#408]
+- Minimum supported Rust version (MSRV) is now 1.52.
 
 [#407]: https://github.com/actix/actix-net/pull/407
 [#408]: https://github.com/actix/actix-net/pull/408
 
 
 ## 2.0.0-beta.6 - 2021-10-11
-* Add experimental (semver-exempt) `io-uring` feature for enabling async file I/O on linux. [#374]
-* Server no long listens to `SIGHUP` signal. Previously, the received was not used but did block
+- Add experimental (semver-exempt) `io-uring` feature for enabling async file I/O on linux. [#374]
+- Server no long listens to `SIGHUP` signal. Previously, the received was not used but did block
   subsequent exit signals from working. [#389]
-* Remove `config` module. `ServiceConfig`, `ServiceRuntime` public types are removed due to
+- Remove `config` module. `ServiceConfig`, `ServiceRuntime` public types are removed due to
   this change. [#349]
-* Remove `ServerBuilder::configure` [#349]
+- Remove `ServerBuilder::configure` [#349]
 
 [#374]: https://github.com/actix/actix-net/pull/374
 [#349]: https://github.com/actix/actix-net/pull/349
@@ -42,23 +84,23 @@
 
 
 ## 2.0.0-beta.5 - 2021-04-20
-* Server shutdown notifies all workers to exit regardless if shutdown is graceful. This causes all
+- Server shutdown notifies all workers to exit regardless if shutdown is graceful. This causes all
   workers to shutdown immediately in force shutdown case. [#333]
 
 [#333]: https://github.com/actix/actix-net/pull/333
 
 
 ## 2.0.0-beta.4 - 2021-04-01
-* Prevent panic when `shutdown_timeout` is very large. [f9262db]
+- Prevent panic when `shutdown_timeout` is very large. [f9262db]
 
 [f9262db]: https://github.com/actix/actix-net/commit/f9262db
 
 
 ## 2.0.0-beta.3 - 2021-02-06
-* Hidden `ServerBuilder::start` method has been removed. Use `ServerBuilder::run`. [#246]
-* Add retry for EINTR signal (`io::Interrupted`) in `Accept`'s poll loop. [#264]
-* Add `ServerBuilder::worker_max_blocking_threads` to customize blocking thread pool size. [#265]
-* Update `actix-rt` to `2.0.0`. [#273]
+- Hidden `ServerBuilder::start` method has been removed. Use `ServerBuilder::run`. [#246]
+- Add retry for EINTR signal (`io::Interrupted`) in `Accept`'s poll loop. [#264]
+- Add `ServerBuilder::worker_max_blocking_threads` to customize blocking thread pool size. [#265]
+- Update `actix-rt` to `2.0.0`. [#273]
 
 [#246]: https://github.com/actix/actix-net/pull/246
 [#264]: https://github.com/actix/actix-net/pull/264
@@ -67,21 +109,21 @@
 
 
 ## 2.0.0-beta.2 - 2021-01-03
-* Merge `actix-testing` to `actix-server` as `test_server` mod. [#242]
+- Merge `actix-testing` to `actix-server` as `test_server` mod. [#242]
 
 [#242]: https://github.com/actix/actix-net/pull/242
 
 
 ## 2.0.0-beta.1 - 2020-12-28
-* Added explicit info log message on accept queue pause. [#215]
-* Prevent double registration of sockets when back-pressure is resolved. [#223]
-* Update `mio` dependency to `0.7.3`. [#239]
-* Remove `socket2` dependency. [#239]
-* `ServerBuilder::backlog` now accepts `u32` instead of `i32`. [#239]
-* Remove `AcceptNotify` type and pass `WakerQueue` to `Worker` to wake up `Accept`'s `Poll`. [#239]
-* Convert `mio::net::TcpStream` to `actix_rt::net::TcpStream`(`UnixStream` for uds) using
+- Added explicit info log message on accept queue pause. [#215]
+- Prevent double registration of sockets when back-pressure is resolved. [#223]
+- Update `mio` dependency to `0.7.3`. [#239]
+- Remove `socket2` dependency. [#239]
+- `ServerBuilder::backlog` now accepts `u32` instead of `i32`. [#239]
+- Remove `AcceptNotify` type and pass `WakerQueue` to `Worker` to wake up `Accept`'s `Poll`. [#239]
+- Convert `mio::net::TcpStream` to `actix_rt::net::TcpStream`(`UnixStream` for uds) using
   `FromRawFd` and `IntoRawFd`(`FromRawSocket` and `IntoRawSocket` on windows). [#239]
-* Remove `AsyncRead` and `AsyncWrite` trait bound for `socket::FromStream` trait. [#239]
+- Remove `AsyncRead` and `AsyncWrite` trait bound for `socket::FromStream` trait. [#239]
 
 [#215]: https://github.com/actix/actix-net/pull/215
 [#223]: https://github.com/actix/actix-net/pull/223
@@ -89,125 +131,125 @@
 
 
 ## 1.0.4 - 2020-09-12
-* Update actix-codec to 0.3.0.
-* Workers must be greater than 0. [#167]
+- Update actix-codec to 0.3.0.
+- Workers must be greater than 0. [#167]
 
 [#167]: https://github.com/actix/actix-net/pull/167
 
 
 ## 1.0.3 - 2020-05-19
-* Replace deprecated `net2` crate with `socket2` [#140]
+- Replace deprecated `net2` crate with `socket2` [#140]
 
 [#140]: https://github.com/actix/actix-net/pull/140
 
 
 ## 1.0.2 - 2020-02-26
-* Avoid error by calling `reregister()` on Windows [#103]
+- Avoid error by calling `reregister()` on Windows [#103]
 
 [#103]: https://github.com/actix/actix-net/pull/103
 
 
 ## 1.0.1 - 2019-12-29
-* Rename `.start()` method to `.run()`
+- Rename `.start()` method to `.run()`
 
 
 ## 1.0.0 - 2019-12-11
-* Use actix-net releases
+- Use actix-net releases
 
 
 ## 1.0.0-alpha.4 - 2019-12-08
-* Use actix-service 1.0.0-alpha.4
+- Use actix-service 1.0.0-alpha.4
 
 
 ## 1.0.0-alpha.3 - 2019-12-07
-* Migrate to tokio 0.2
-* Fix compilation on non-unix platforms
-* Better handling server configuration
+- Migrate to tokio 0.2
+- Fix compilation on non-unix platforms
+- Better handling server configuration
 
 
 ## 1.0.0-alpha.2 - 2019-12-02
-* Simplify server service (remove actix-server-config)
-* Allow to wait on `Server` until server stops
+- Simplify server service (remove actix-server-config)
+- Allow to wait on `Server` until server stops
 
 
 ## 0.8.0-alpha.1 - 2019-11-22
-* Migrate to `std::future`
+- Migrate to `std::future`
 
 
 ## 0.7.0 - 2019-10-04
-* Update `rustls` to 0.16
-* Minimum required Rust version upped to 1.37.0
+- Update `rustls` to 0.16
+- Minimum required Rust version upped to 1.37.0
 
 
 ## 0.6.1 - 2019-09-25
-* Add UDS listening support to `ServerBuilder`
+- Add UDS listening support to `ServerBuilder`
 
 
 ## 0.6.0 - 2019-07-18
-* Support Unix domain sockets #3
+- Support Unix domain sockets #3
 
 
 ## 0.5.1 - 2019-05-18
-* ServerBuilder::shutdown_timeout() accepts u64
+- ServerBuilder::shutdown_timeout() accepts u64
 
 
 ## 0.5.0 - 2019-05-12
-* Add `Debug` impl for `SslError`
-* Derive debug for `Server` and `ServerCommand`
-* Upgrade to actix-service 0.4
+- Add `Debug` impl for `SslError`
+- Derive debug for `Server` and `ServerCommand`
+- Upgrade to actix-service 0.4
 
 
 ## 0.4.3 - 2019-04-16
-* Re-export `IoStream` trait
-* Depend on `ssl` and `rust-tls` features from actix-server-config
+- Re-export `IoStream` trait
+- Depend on `ssl` and `rust-tls` features from actix-server-config
 
 
 ## 0.4.2 - 2019-03-30
-* Fix SIGINT force shutdown
+- Fix SIGINT force shutdown
 
 
 ## 0.4.1 - 2019-03-14
-* `SystemRuntime::on_start()` - allow to run future before server service initialization
+- `SystemRuntime::on_start()` - allow to run future before server service initialization
 
 
 ## 0.4.0 - 2019-03-12
-* Use `ServerConfig` for service factory
-* Wrap tcp socket to `Io` type
-* Upgrade actix-service
+- Use `ServerConfig` for service factory
+- Wrap tcp socket to `Io` type
+- Upgrade actix-service
 
 
 ## 0.3.1 - 2019-03-04
-* Add `ServerBuilder::maxconnrate` sets the maximum per-worker number of concurrent connections
-* Add helper ssl error `SslError`
-* Rename `StreamServiceFactory` to `ServiceFactory`
-* Deprecate `StreamServiceFactory`
+- Add `ServerBuilder::maxconnrate` sets the maximum per-worker number of concurrent connections
+- Add helper ssl error `SslError`
+- Rename `StreamServiceFactory` to `ServiceFactory`
+- Deprecate `StreamServiceFactory`
 
 
 ## 0.3.0 - 2019-03-02
-* Use new `NewService` trait
+- Use new `NewService` trait
 
 
 ## 0.2.1 - 2019-02-09
-* Drop service response
+- Drop service response
 
 
 ## 0.2.0 - 2019-02-01
-* Migrate to actix-service 0.2
-* Updated rustls dependency
+- Migrate to actix-service 0.2
+- Updated rustls dependency
 
 
 ## 0.1.3 - 2018-12-21
-* Fix max concurrent connections handling
+- Fix max concurrent connections handling
 
 
 ## 0.1.2 - 2018-12-12
-* rename ServiceConfig::rt() to ServiceConfig::apply()
-* Fix back-pressure for concurrent ssl handshakes
+- rename ServiceConfig::rt() to ServiceConfig::apply()
+- Fix back-pressure for concurrent ssl handshakes
 
 
 ## 0.1.1 - 2018-12-11
-* Fix signal handling on windows
+- Fix signal handling on windows
 
 
 ## 0.1.0 - 2018-12-09
-* Move server to separate crate
+- Move server to separate crate

actix-server/Cargo.toml

@@ -1,14 +1,17 @@
 [package]
 name = "actix-server"
-version = "2.0.0-beta.9"
+version = "2.1.1"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "fakeshadow <24548779@qq.com>",
+    "Rob Ede <robjtede@icloud.com>",
+    "Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>",
 ]
 description = "General purpose TCP server built for the Actix ecosystem"
-keywords = ["network", "framework", "async", "futures"]
-repository = "https://github.com/actix/actix-net.git"
+keywords = ["network", "tcp", "server", "framework", "async"]
 categories = ["network-programming", "asynchronous"]
+homepage = "https://actix.rs"
+repository = "https://github.com/actix/actix-net.git"
 license = "MIT OR Apache-2.0"
 edition = "2018"
 
@@ -21,26 +24,27 @@ default = []
 io-uring = ["tokio-uring", "actix-rt/io-uring"]
 
 [dependencies]
-actix-rt = { version = "2.4.0", default-features = false }
-actix-service = "2.0.0"
-actix-utils = "3.0.0"
+actix-rt = { version = "2.7", default-features = false }
+actix-service = "2"
+actix-utils = "3"
 
 futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
 futures-util = { version = "0.3.7", default-features = false, features = ["alloc"] }
-log = "0.4"
 mio = { version = "0.8", features = ["os-poll", "net"] }
 num_cpus = "1.13"
 socket2 = "0.4.2"
-tokio = { version = "1.5.1", features = ["sync"] }
+tokio = { version = "1.13.1", features = ["sync"] }
+tracing = { version = "0.1.30", default-features = false, features = ["log"] }
 
-# runtime for io-uring feature
-tokio-uring = { version = "0.1", optional = true }
+# runtime for `io-uring` feature
+[target.'cfg(target_os = "linux")'.dependencies]
+tokio-uring = { version = "0.3", optional = true }
 
 [dev-dependencies]
-actix-codec = "0.4.0"
-actix-rt = "2.4.0"
+actix-codec = "0.5.0"
+actix-rt = "2.6.0"
 
 bytes = "1"
 env_logger = "0.9"
-futures-util = { version = "0.3.7", default-features = false, features = ["sink"] }
-tokio = { version = "1.5.1", features = ["io-util", "rt-multi-thread", "macros"] }
+futures-util = { version = "0.3.7", default-features = false, features = ["sink", "async-await-macro"] }
+tokio = { version = "1.13.1", features = ["io-util", "rt-multi-thread", "macros", "fs"] }

actix-server/README.md

@@ -0,0 +1,15 @@
+# actix-server
+
+> General purpose TCP server built for the Actix ecosystem.
+
+[![crates.io](https://img.shields.io/crates/v/actix-server?label=latest)](https://crates.io/crates/actix-server)
+[![Documentation](https://docs.rs/actix-server/badge.svg?version=2.1.1)](https://docs.rs/actix-server/2.1.1)
+[![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
+![License](https://img.shields.io/crates/l/actix-server.svg)
+[![Dependency Status](https://deps.rs/crate/actix-server/2.1.1/status.svg)](https://deps.rs/crate/actix-server/2.1.1)
+![Download](https://img.shields.io/crates/d/actix-server.svg)
+[![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
+
+## Resources
+- [Library Documentation](https://docs.rs/actix-server)
+- [Examples](/actix-server/examples)

actix-server/examples/file-reader.rs

@@ -0,0 +1,95 @@
+//! Simple file-reader TCP server with framed stream.
+//!
+//! Using the following command:
+//!
+//! ```sh
+//! nc 127.0.0.1 8080
+//! ```
+//!
+//! Follow the prompt and enter a file path, relative or absolute.
+
+use std::io;
+
+use actix_codec::{Framed, LinesCodec};
+use actix_rt::net::TcpStream;
+use actix_server::Server;
+use actix_service::{fn_service, ServiceFactoryExt as _};
+use futures_util::{SinkExt as _, StreamExt as _};
+use tokio::{fs::File, io::AsyncReadExt as _};
+
+async fn run() -> io::Result<()> {
+    env_logger::init_from_env(env_logger::Env::default().default_filter_or("info"));
+
+    let addr = ("127.0.0.1", 8080);
+    tracing::info!("starting server on port: {}", &addr.0);
+
+    // Bind socket address and start worker(s). By default, the server uses the number of physical
+    // CPU cores as the worker count. For this reason, the closure passed to bind needs to return
+    // a service *factory*; so it can be created once per worker.
+    Server::build()
+        .bind("file-reader", addr, move || {
+            fn_service(move |stream: TcpStream| async move {
+                // set up codec to use with I/O resource
+                let mut framed = Framed::new(stream, LinesCodec::default());
+
+                loop {
+                    // prompt for file name
+                    framed.send("Type file name to return:").await?;
+
+                    // wait for next line
+                    match framed.next().await {
+                        Some(Ok(line)) => {
+                            match File::open(&line).await {
+                                Ok(mut file) => {
+                                    tracing::info!("reading file: {}", &line);
+
+                                    // read file into String buffer
+                                    let mut buf = String::new();
+                                    file.read_to_string(&mut buf).await?;
+
+                                    // send String into framed object
+                                    framed.send(buf).await?;
+
+                                    // break out of loop and
+                                    break;
+                                }
+                                Err(err) => {
+                                    tracing::error!("{}", err);
+                                    framed
+                                        .send("File not found or not readable. Try again.")
+                                        .await?;
+                                    continue;
+                                }
+                            };
+                        }
+
+                        // not being able to read a line from the stream is unrecoverable
+                        Some(Err(err)) => return Err(err),
+
+                        // This EOF won't be hit.
+                        None => continue,
+                    }
+                }
+
+                // close connection after file has been copied to TCP stream
+                Ok(())
+            })
+            .map_err(|err| tracing::error!("service error: {:?}", err))
+        })?
+        .workers(2)
+        .run()
+        .await
+}
+
+#[tokio::main]
+async fn main() -> io::Result<()> {
+    run().await?;
+    Ok(())
+}
+
+// alternatively:
+// #[actix_rt::main]
+// async fn main() -> io::Result<()> {
+//     run().await?;
+//     Ok(())
+// }

actix-server/examples/tcp-echo.rs

@@ -22,20 +22,19 @@ use actix_server::Server;
 use actix_service::{fn_service, ServiceFactoryExt as _};
 use bytes::BytesMut;
 use futures_util::future::ok;
-use log::{error, info};
 use tokio::io::{AsyncReadExt as _, AsyncWriteExt as _};
 
 async fn run() -> io::Result<()> {
-    env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info")).init();
+    env_logger::init_from_env(env_logger::Env::default().default_filter_or("info"));
 
     let count = Arc::new(AtomicUsize::new(0));
 
     let addr = ("127.0.0.1", 8080);
-    info!("starting server on port: {}", &addr.0);
+    tracing::info!("starting server on port: {}", &addr.0);
 
-    // Bind socket address and start worker(s). By default, the server uses the number of available
-    // logical CPU cores as the worker count. For this reason, the closure passed to bind needs
-    // to return a service *factory*; so it can be created once per worker.
+    // Bind socket address and start worker(s). By default, the server uses the number of physical
+    // CPU cores as the worker count. For this reason, the closure passed to bind needs to return
+    // a service *factory*; so it can be created once per worker.
     Server::build()
         .bind("echo", addr, move || {
             let count = Arc::clone(&count);
@@ -58,14 +57,14 @@ async fn run() -> io::Result<()> {
 
                             // more bytes to process
                             Ok(bytes_read) => {
-                                info!("[{}] read {} bytes", num, bytes_read);
+                                tracing::info!("[{}] read {} bytes", num, bytes_read);
                                 stream.write_all(&buf[size..]).await.unwrap();
                                 size += bytes_read;
                             }
 
                             // stream error; bail from loop with error
                             Err(err) => {
-                                error!("Stream Error: {:?}", err);
+                                tracing::error!("stream error: {:?}", err);
                                 return Err(());
                             }
                         }
@@ -75,14 +74,14 @@ async fn run() -> io::Result<()> {
                     Ok((buf.freeze(), size))
                 }
             })
-            .map_err(|err| error!("Service Error: {:?}", err))
+            .map_err(|err| tracing::error!("service error: {:?}", err))
             .and_then(move |(_, size)| {
                 let num = num2.load(Ordering::SeqCst);
-                info!("[{}] total bytes read: {}", num, size);
+                tracing::info!("[{}] total bytes read: {}", num, size);
                 ok(size)
             })
         })?
-        .workers(1)
+        .workers(2)
         .run()
         .await
 }

actix-server/src/accept.rs

@@ -1,8 +1,8 @@
 use std::{io, thread, time::Duration};
 
 use actix_rt::time::Instant;
-use log::{debug, error, info};
 use mio::{Interest, Poll, Token as MioToken};
+use tracing::{debug, error, info};
 
 use crate::{
     availability::Availability,
@@ -24,7 +24,7 @@ struct ServerSocketInfo {
     timeout: Option<actix_rt::time::Instant>,
 }
 
-/// poll instance of the server.
+/// Poll instance of the server.
 pub(crate) struct Accept {
     poll: Poll,
     waker_queue: WakerQueue,
@@ -41,7 +41,7 @@ impl Accept {
     pub(crate) fn start(
         sockets: Vec<(usize, MioListener)>,
         builder: &ServerBuilder,
-    ) -> io::Result<(WakerQueue, Vec<WorkerHandleServer>)> {
+    ) -> io::Result<(WakerQueue, Vec<WorkerHandleServer>, thread::JoinHandle<()>)> {
         let handle_server = ServerHandle::new(builder.cmd_tx.clone());
 
         // construct poll instance and its waker
@@ -73,12 +73,12 @@ impl Accept {
             handle_server,
         )?;
 
-        thread::Builder::new()
+        let accept_handle = thread::Builder::new()
             .name("actix-server acceptor".to_owned())
             .spawn(move || accept.poll_with(&mut sockets))
             .map_err(|err| io::Error::new(io::ErrorKind::Other, err))?;
 
-        Ok((waker_queue, handles_server))
+        Ok((waker_queue, handles_server, accept_handle))
     }
 
     fn new_with_sockets(
@@ -127,10 +127,10 @@ impl Accept {
         let mut events = mio::Events::with_capacity(256);
 
         loop {
-            if let Err(e) = self.poll.poll(&mut events, self.timeout) {
-                match e.kind() {
+            if let Err(err) = self.poll.poll(&mut events, self.timeout) {
+                match err.kind() {
                     io::ErrorKind::Interrupted => {}
-                    _ => panic!("Poll error: {}", e),
+                    _ => panic!("Poll error: {}", err),
                 }
             }
 
@@ -140,7 +140,7 @@ impl Accept {
                     WAKER_TOKEN => {
                         let exit = self.handle_waker(sockets);
                         if exit {
-                            info!("Accept thread stopped");
+                            info!("accept thread stopped");
                             return;
                         }
                     }
@@ -161,11 +161,13 @@ impl Accept {
         // a loop that would try to drain the command channel. It's yet unknown
         // if it's necessary/good practice to actively drain the waker queue.
         loop {
-            // take guard with every iteration so no new interest can be added
-            // until the current task is done.
+            // Take guard with every iteration so no new interests can be added until the current
+            // task is done. Take care not to take the guard again inside this loop.
             let mut guard = self.waker_queue.guard();
+
+            #[allow(clippy::significant_drop_in_scrutinee)]
             match guard.pop_front() {
-                // worker notify it becomes available.
+                // Worker notified it became available.
                 Some(WakerInterest::WorkerAvailable(idx)) => {
                     drop(guard);
 
@@ -176,7 +178,7 @@ impl Accept {
                     }
                 }
 
-                // a new worker thread is made and it's handle would be added to Accept
+                // A new worker thread has been created so store its handle.
                 Some(WakerInterest::Worker(handle)) => {
                     drop(guard);
 
@@ -297,16 +299,16 @@ impl Accept {
 
     fn register_logged(&self, info: &mut ServerSocketInfo) {
         match self.register(info) {
-            Ok(_) => debug!("Resume accepting connections on {}", info.lst.local_addr()),
-            Err(e) => error!("Can not register server socket {}", e),
+            Ok(_) => debug!("resume accepting connections on {}", info.lst.local_addr()),
+            Err(err) => error!("can not register server socket {}", err),
         }
     }
 
     fn deregister_logged(&self, info: &mut ServerSocketInfo) {
         match self.poll.registry().deregister(&mut info.lst) {
-            Ok(_) => debug!("Paused accepting connections on {}", info.lst.local_addr()),
-            Err(e) => {
-                error!("Can not deregister server socket {}", e)
+            Ok(_) => debug!("paused accepting connections on {}", info.lst.local_addr()),
+            Err(err) => {
+                error!("can not deregister server socket {}", err)
             }
         }
     }
@@ -350,7 +352,7 @@ impl Accept {
                 self.remove_next();
 
                 if self.handles.is_empty() {
-                    error!("No workers");
+                    error!("no workers");
                     // All workers are gone and Conn is nowhere to be sent.
                     // Treat this situation as Ok and drop Conn.
                     return Ok(());
@@ -396,10 +398,10 @@ impl Accept {
                     let conn = Conn { io, token };
                     self.accept_one(conn);
                 }
-                Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => return,
-                Err(ref e) if connection_error(e) => continue,
-                Err(e) => {
-                    error!("Error accepting connection: {}", e);
+                Err(ref err) if err.kind() == io::ErrorKind::WouldBlock => return,
+                Err(ref err) if connection_error(err) => continue,
+                Err(err) => {
+                    error!("error accepting connection: {}", err);
 
                     // deregister listener temporary
                     self.deregister_logged(info);

actix-server/src/builder.rs

@@ -1,12 +1,12 @@
 use std::{io, time::Duration};
 
 use actix_rt::net::TcpStream;
-use log::{info, trace};
 use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
+use tracing::{info, trace};
 
 use crate::{
     server::ServerCommand,
-    service::{InternalServiceFactory, ServiceFactory, StreamNewService},
+    service::{InternalServiceFactory, ServerServiceFactory, StreamNewService},
     socket::{
         create_mio_tcp_listener, MioListener, MioTcpListener, StdTcpListener, ToSocketAddrs,
     },
@@ -40,7 +40,7 @@ impl ServerBuilder {
         let (cmd_tx, cmd_rx) = unbounded_channel();
 
         ServerBuilder {
-            threads: num_cpus::get(),
+            threads: num_cpus::get_physical(),
             token: 0,
             factories: Vec::new(),
             sockets: Vec::new(),
@@ -55,8 +55,11 @@ impl ServerBuilder {
 
     /// Set number of workers to start.
     ///
-    /// By default server uses number of available logical CPU as workers count. Workers must be
-    /// greater than 0.
+    /// `num` must be greater than 0.
+    ///
+    /// The default worker count is the number of physical CPU cores available. If your benchmark
+    /// testing indicates that simultaneous multi-threading is beneficial to your app, you can use
+    /// the [`num_cpus`] crate to acquire the _logical_ core count instead.
     pub fn workers(mut self, num: usize) -> Self {
         assert_ne!(num, 0, "workers must be greater than 0");
         self.threads = num;
@@ -137,10 +140,11 @@ impl ServerBuilder {
     }
 
     /// Add new service to the server.
-    pub fn bind<F, U, N: AsRef<str>>(mut self, name: N, addr: U, factory: F) -> io::Result<Self>
+    pub fn bind<F, U, N>(mut self, name: N, addr: U, factory: F) -> io::Result<Self>
     where
-        F: ServiceFactory<TcpStream>,
+        F: ServerServiceFactory<TcpStream>,
         U: ToSocketAddrs,
+        N: AsRef<str>,
     {
         let sockets = bind_addr(addr, self.backlog)?;
 
@@ -169,7 +173,7 @@ impl ServerBuilder {
         factory: F,
     ) -> io::Result<Self>
     where
-        F: ServiceFactory<TcpStream>,
+        F: ServerServiceFactory<TcpStream>,
     {
         lst.set_nonblocking(true)?;
         let addr = lst.local_addr()?;
@@ -193,7 +197,7 @@ impl ServerBuilder {
         if self.sockets.is_empty() {
             panic!("Server should have at least one bound socket");
         } else {
-            info!("Starting {} workers", self.threads);
+            info!("starting {} workers", self.threads);
             Server::new(self)
         }
     }
@@ -210,16 +214,16 @@ impl ServerBuilder {
     /// Add new unix domain service to the server.
     pub fn bind_uds<F, U, N>(self, name: N, addr: U, factory: F) -> io::Result<Self>
     where
-        F: ServiceFactory<actix_rt::net::UnixStream>,
+        F: ServerServiceFactory<actix_rt::net::UnixStream>,
         N: AsRef<str>,
         U: AsRef<std::path::Path>,
     {
         // The path must not exist when we try to bind.
         // Try to remove it to avoid bind error.
-        if let Err(e) = std::fs::remove_file(addr.as_ref()) {
+        if let Err(err) = std::fs::remove_file(addr.as_ref()) {
             // NotFound is expected and not an issue. Anything else is.
-            if e.kind() != std::io::ErrorKind::NotFound {
-                return Err(e);
+            if err.kind() != std::io::ErrorKind::NotFound {
+                return Err(err);
             }
         }
 
@@ -237,7 +241,7 @@ impl ServerBuilder {
         factory: F,
     ) -> io::Result<Self>
     where
-        F: ServiceFactory<actix_rt::net::UnixStream>,
+        F: ServerServiceFactory<actix_rt::net::UnixStream>,
     {
         use std::net::{IpAddr, Ipv4Addr};
         lst.set_nonblocking(true)?;
@@ -260,22 +264,23 @@ pub(super) fn bind_addr<S: ToSocketAddrs>(
     addr: S,
     backlog: u32,
 ) -> io::Result<Vec<MioTcpListener>> {
-    let mut err = None;
+    let mut opt_err = None;
     let mut success = false;
     let mut sockets = Vec::new();
+
     for addr in addr.to_socket_addrs()? {
         match create_mio_tcp_listener(addr, backlog) {
             Ok(lst) => {
                 success = true;
                 sockets.push(lst);
             }
-            Err(e) => err = Some(e),
+            Err(err) => opt_err = Some(err),
         }
     }
 
     if success {
         Ok(sockets)
-    } else if let Some(err) = err.take() {
+    } else if let Some(err) = opt_err.take() {
         Err(err)
     } else {
         Err(io::Error::new(

actix-server/src/handle.rs

@@ -46,6 +46,7 @@ impl ServerHandle {
         let _ = self.cmd_tx.send(ServerCommand::Stop {
             graceful,
             completion: Some(tx),
+            force_system_stop: false,
         });
 
         async {

actix-server/src/join_all.rs

@@ -63,10 +63,10 @@ impl<T> Future for JoinAll<T> {
 
 #[cfg(test)]
 mod test {
-    use super::*;
-
     use actix_utils::future::ready;
 
+    use super::*;
+
     #[actix_rt::test]
     async fn test_join_all() {
         let futs = vec![ready(Ok(1)), ready(Err(3)), ready(Ok(9))];

actix-server/src/lib.rs

@@ -1,6 +1,7 @@
 //! General purpose TCP server.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 
@@ -20,11 +21,10 @@ mod worker;
 pub use self::builder::ServerBuilder;
 pub use self::handle::ServerHandle;
 pub use self::server::Server;
-pub use self::service::ServiceFactory;
-pub use self::test_server::TestServer;
-
+pub use self::service::ServerServiceFactory;
 #[doc(hidden)]
 pub use self::socket::FromStream;
+pub use self::test_server::TestServer;
 
 /// Start server building process
 #[doc(hidden)]

actix-server/src/server.rs

@@ -3,23 +3,22 @@ use std::{
     io, mem,
     pin::Pin,
     task::{Context, Poll},
+    thread,
     time::Duration,
 };
 
 use actix_rt::{time::sleep, System};
-use futures_core::future::BoxFuture;
-use log::{error, info};
-use tokio::sync::{
-    mpsc::{UnboundedReceiver, UnboundedSender},
-    oneshot,
-};
+use futures_core::{future::BoxFuture, Stream};
+use futures_util::stream::StreamExt as _;
+use tokio::sync::{mpsc::UnboundedReceiver, oneshot};
+use tracing::{error, info};
 
 use crate::{
     accept::Accept,
     builder::ServerBuilder,
     join_all::join_all,
     service::InternalServiceFactory,
-    signals::{Signal, Signals},
+    signals::{SignalKind, Signals},
     waker_queue::{WakerInterest, WakerQueue},
     worker::{ServerWorker, ServerWorkerConfig, WorkerHandleServer},
     ServerHandle,
@@ -27,22 +26,31 @@ use crate::{
 
 #[derive(Debug)]
 pub(crate) enum ServerCommand {
-    /// TODO
+    /// Worker failed to accept connection, indicating a probable panic.
+    ///
+    /// Contains index of faulted worker.
     WorkerFaulted(usize),
 
+    /// Pause accepting connections.
+    ///
     /// Contains return channel to notify caller of successful state change.
     Pause(oneshot::Sender<()>),
 
+    /// Resume accepting connections.
+    ///
     /// Contains return channel to notify caller of successful state change.
     Resume(oneshot::Sender<()>),
 
-    /// TODO
+    /// Stop accepting connections and begin shutdown procedure.
     Stop {
         /// True if shut down should be graceful.
         graceful: bool,
 
         /// Return channel to notify caller that shutdown is complete.
         completion: Option<oneshot::Sender<()>>,
+
+        /// Force System exit when true, overriding `ServerBuilder::system_exit()` if it is false.
+        force_system_stop: bool,
     },
 }
 
@@ -54,11 +62,11 @@ pub(crate) enum ServerCommand {
 /// Creates a worker per CPU core (or the number specified in [`ServerBuilder::workers`]) and
 /// distributes connections with a round-robin strategy.
 ///
-/// The [Server] must be awaited to process stop commands and listen for OS signals. It will resolve
-/// when the server has fully shut down.
+/// The [Server] must be awaited or polled in order to start running. It will resolve when the
+/// server has fully shut down.
 ///
 /// # Shutdown Signals
-/// On UNIX systems, `SIGQUIT` will start a graceful shutdown and `SIGTERM` or `SIGINT` will start a
+/// On UNIX systems, `SIGTERM` will start a graceful shutdown and `SIGQUIT` or `SIGINT` will start a
 /// forced shutdown. On Windows, a Ctrl-C signal will start a forced shutdown.
 ///
 /// A graceful shutdown will wait for all workers to stop first.
@@ -113,10 +121,10 @@ pub(crate) enum ServerCommand {
 ///         .await
 /// }
 /// ```
-#[must_use = "futures do nothing unless you `.await` or poll them"]
-pub enum Server {
-    Server(ServerInner),
-    Error(Option<io::Error>),
+#[must_use = "Server does nothing unless you `.await` or poll it"]
+pub struct Server {
+    handle: ServerHandle,
+    fut: BoxFuture<'static, io::Result<()>>,
 }
 
 impl Server {
@@ -125,7 +133,56 @@ impl Server {
         ServerBuilder::default()
     }
 
-    pub(crate) fn new(mut builder: ServerBuilder) -> Self {
+    pub(crate) fn new(builder: ServerBuilder) -> Self {
+        Server {
+            handle: ServerHandle::new(builder.cmd_tx.clone()),
+            fut: Box::pin(ServerInner::run(builder)),
+        }
+    }
+
+    /// Get a `Server` handle that can be used issue commands and change it's state.
+    ///
+    /// See [ServerHandle](ServerHandle) for usage.
+    pub fn handle(&self) -> ServerHandle {
+        self.handle.clone()
+    }
+}
+
+impl Future for Server {
+    type Output = io::Result<()>;
+
+    #[inline]
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        Pin::new(&mut Pin::into_inner(self).fut).poll(cx)
+    }
+}
+
+pub struct ServerInner {
+    worker_handles: Vec<WorkerHandleServer>,
+    accept_handle: Option<thread::JoinHandle<()>>,
+    worker_config: ServerWorkerConfig,
+    services: Vec<Box<dyn InternalServiceFactory>>,
+    waker_queue: WakerQueue,
+    system_stop: bool,
+    stopping: bool,
+}
+
+impl ServerInner {
+    async fn run(builder: ServerBuilder) -> io::Result<()> {
+        let (mut this, mut mux) = Self::run_sync(builder)?;
+
+        while let Some(cmd) = mux.next().await {
+            this.handle_cmd(cmd).await;
+
+            if this.stopping {
+                break;
+            }
+        }
+
+        Ok(())
+    }
+
+    fn run_sync(mut builder: ServerBuilder) -> io::Result<(Self, ServerEventMultiplexer)> {
         let sockets = mem::take(&mut builder.sockets)
             .into_iter()
             .map(|t| (t.0, t.2))
@@ -143,156 +200,90 @@ impl Server {
 
         for (_, name, lst) in &builder.sockets {
             info!(
-                r#"Starting service: "{}", workers: {}, listening on: {}"#,
+                r#"starting service: "{}", workers: {}, listening on: {}"#,
                 name,
                 builder.threads,
                 lst.local_addr()
             );
         }
 
-        match Accept::start(sockets, &builder) {
-            Ok((waker_queue, worker_handles)) => {
-                // construct OS signals listener future
-                let signals = (builder.listen_os_signals).then(Signals::new);
+        let (waker_queue, worker_handles, accept_handle) = Accept::start(sockets, &builder)?;
 
-                Self::Server(ServerInner {
-                    cmd_tx: builder.cmd_tx.clone(),
-                    cmd_rx: builder.cmd_rx,
-                    signals,
-                    waker_queue,
-                    worker_handles,
-                    worker_config: builder.worker_config,
-                    services: builder.factories,
-                    exit: builder.exit,
-                    stop_task: None,
-                })
-            }
+        let mux = ServerEventMultiplexer {
+            signal_fut: (builder.listen_os_signals).then(Signals::new),
+            cmd_rx: builder.cmd_rx,
+        };
 
-            Err(err) => Self::Error(Some(err)),
-        }
+        let server = ServerInner {
+            waker_queue,
+            accept_handle: Some(accept_handle),
+            worker_handles,
+            worker_config: builder.worker_config,
+            services: builder.factories,
+            system_stop: builder.exit,
+            stopping: false,
+        };
+
+        Ok((server, mux))
     }
 
-    /// Get a handle for ServerFuture that can be used to change state of actix server.
-    ///
-    /// See [ServerHandle](ServerHandle) for usage.
-    pub fn handle(&self) -> ServerHandle {
-        match self {
-            Server::Server(inner) => ServerHandle::new(inner.cmd_tx.clone()),
-            Server::Error(err) => {
-                // TODO: i don't think this is the best way to handle server startup fail
-                panic!(
-                    "server handle can not be obtained because server failed to start up: {}",
-                    err.as_ref().unwrap()
-                );
-            }
-        }
-    }
-}
-
-impl Future for Server {
-    type Output = io::Result<()>;
-
-    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        match self.as_mut().get_mut() {
-            Self::Error(err) => Poll::Ready(Err(err
-                .take()
-                .expect("Server future cannot be polled after error"))),
-
-            Self::Server(inner) => {
-                // poll Signals
-                if let Some(ref mut signals) = inner.signals {
-                    if let Poll::Ready(signal) = Pin::new(signals).poll(cx) {
-                        inner.stop_task = inner.handle_signal(signal);
-                        // drop signals listener
-                        inner.signals = None;
-                    }
-                }
-
-                // handle stop tasks and eager drain command channel
-                loop {
-                    if let Some(ref mut fut) = inner.stop_task {
-                        // only resolve stop task and exit
-                        return fut.as_mut().poll(cx).map(|_| Ok(()));
-                    }
-
-                    match Pin::new(&mut inner.cmd_rx).poll_recv(cx) {
-                        Poll::Ready(Some(cmd)) => {
-                            // if stop task is required, set it and loop
-                            inner.stop_task = inner.handle_cmd(cmd);
-                        }
-                        _ => return Poll::Pending,
-                    }
-                }
-            }
-        }
-    }
-}
-
-pub struct ServerInner {
-    worker_handles: Vec<WorkerHandleServer>,
-    worker_config: ServerWorkerConfig,
-    services: Vec<Box<dyn InternalServiceFactory>>,
-    exit: bool,
-    cmd_tx: UnboundedSender<ServerCommand>,
-    cmd_rx: UnboundedReceiver<ServerCommand>,
-    signals: Option<Signals>,
-    waker_queue: WakerQueue,
-    stop_task: Option<BoxFuture<'static, ()>>,
-}
-
-impl ServerInner {
-    fn handle_cmd(&mut self, item: ServerCommand) -> Option<BoxFuture<'static, ()>> {
+    async fn handle_cmd(&mut self, item: ServerCommand) {
         match item {
             ServerCommand::Pause(tx) => {
                 self.waker_queue.wake(WakerInterest::Pause);
                 let _ = tx.send(());
-                None
             }
 
             ServerCommand::Resume(tx) => {
                 self.waker_queue.wake(WakerInterest::Resume);
                 let _ = tx.send(());
-                None
             }
 
             ServerCommand::Stop {
                 graceful,
                 completion,
+                force_system_stop,
             } => {
-                let exit = self.exit;
+                self.stopping = true;
 
-                // stop accept thread
+                // Signal accept thread to stop.
+                // Signal is non-blocking; we wait for thread to stop later.
                 self.waker_queue.wake(WakerInterest::Stop);
 
-                // stop workers
+                // send stop signal to workers
                 let workers_stop = self
                     .worker_handles
                     .iter()
                     .map(|worker| worker.stop(graceful))
                     .collect::<Vec<_>>();
 
-                Some(Box::pin(async move {
-                    if graceful {
-                        // wait for all workers to shut down
-                        let _ = join_all(workers_stop).await;
-                    }
+                if graceful {
+                    // wait for all workers to shut down
+                    let _ = join_all(workers_stop).await;
+                }
 
-                    if let Some(tx) = completion {
-                        let _ = tx.send(());
-                    }
+                // wait for accept thread stop
+                self.accept_handle
+                    .take()
+                    .unwrap()
+                    .join()
+                    .expect("Accept thread must not panic in any case");
 
-                    if exit {
-                        sleep(Duration::from_millis(300)).await;
-                        System::try_current().as_ref().map(System::stop);
-                    }
-                }))
+                if let Some(tx) = completion {
+                    let _ = tx.send(());
+                }
+
+                if self.system_stop || force_system_stop {
+                    sleep(Duration::from_millis(300)).await;
+                    System::try_current().as_ref().map(System::stop);
+                }
             }
 
             ServerCommand::WorkerFaulted(idx) => {
                 // TODO: maybe just return with warning log if not found ?
                 assert!(self.worker_handles.iter().any(|wrk| wrk.idx == idx));
 
-                error!("Worker {} has died; restarting", idx);
+                error!("worker {} has died; restarting", idx);
 
                 let factories = self
                     .services
@@ -318,40 +309,60 @@ impl ServerInner {
 
                     Err(err) => error!("can not restart worker {}: {}", idx, err),
                 };
-
-                None
             }
         }
     }
 
-    fn handle_signal(&mut self, signal: Signal) -> Option<BoxFuture<'static, ()>> {
+    fn map_signal(signal: SignalKind) -> ServerCommand {
         match signal {
-            Signal::Int => {
+            SignalKind::Int => {
                 info!("SIGINT received; starting forced shutdown");
-                self.exit = true;
-                self.handle_cmd(ServerCommand::Stop {
+                ServerCommand::Stop {
                     graceful: false,
                     completion: None,
-                })
+                    force_system_stop: true,
+                }
             }
 
-            Signal::Term => {
+            SignalKind::Term => {
                 info!("SIGTERM received; starting graceful shutdown");
-                self.exit = true;
-                self.handle_cmd(ServerCommand::Stop {
+                ServerCommand::Stop {
                     graceful: true,
                     completion: None,
-                })
+                    force_system_stop: true,
+                }
             }
 
-            Signal::Quit => {
+            SignalKind::Quit => {
                 info!("SIGQUIT received; starting forced shutdown");
-                self.exit = true;
-                self.handle_cmd(ServerCommand::Stop {
+                ServerCommand::Stop {
                     graceful: false,
                     completion: None,
-                })
+                    force_system_stop: true,
+                }
             }
         }
     }
 }
+
+struct ServerEventMultiplexer {
+    cmd_rx: UnboundedReceiver<ServerCommand>,
+    signal_fut: Option<Signals>,
+}
+
+impl Stream for ServerEventMultiplexer {
+    type Item = ServerCommand;
+
+    fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+        let this = Pin::into_inner(self);
+
+        if let Some(signal_fut) = &mut this.signal_fut {
+            if let Poll::Ready(signal) = Pin::new(signal_fut).poll(cx) {
+                this.signal_fut = None;
+                return Poll::Ready(Some(ServerInner::map_signal(signal)));
+            }
+        }
+
+        Pin::new(&mut this.cmd_rx).poll_recv(cx)
+    }
+}

actix-server/src/service.rs

@@ -1,16 +1,21 @@
-use std::marker::PhantomData;
-use std::net::SocketAddr;
-use std::task::{Context, Poll};
+use std::{
+    marker::PhantomData,
+    net::SocketAddr,
+    task::{Context, Poll},
+};
 
 use actix_service::{Service, ServiceFactory as BaseServiceFactory};
 use actix_utils::future::{ready, Ready};
 use futures_core::future::LocalBoxFuture;
-use log::error;
+use tracing::error;
 
-use crate::socket::{FromStream, MioStream};
-use crate::worker::WorkerCounterGuard;
+use crate::{
+    socket::{FromStream, MioStream},
+    worker::WorkerCounterGuard,
+};
 
-pub trait ServiceFactory<Stream: FromStream>: Send + Clone + 'static {
+#[doc(hidden)]
+pub trait ServerServiceFactory<Stream: FromStream>: Send + Clone + 'static {
     type Factory: BaseServiceFactory<Stream, Config = ()>;
 
     fn create(&self) -> Self::Factory;
@@ -72,15 +77,15 @@ where
                 });
                 Ok(())
             }
-            Err(e) => {
-                error!("Can not convert to an async tcp stream: {}", e);
+            Err(err) => {
+                error!("can not convert to an async TCP stream: {}", err);
                 Err(())
             }
         })
     }
 }
 
-pub(crate) struct StreamNewService<F: ServiceFactory<Io>, Io: FromStream> {
+pub(crate) struct StreamNewService<F: ServerServiceFactory<Io>, Io: FromStream> {
     name: String,
     inner: F,
     token: usize,
@@ -90,7 +95,7 @@ pub(crate) struct StreamNewService<F: ServiceFactory<Io>, Io: FromStream> {
 
 impl<F, Io> StreamNewService<F, Io>
 where
-    F: ServiceFactory<Io>,
+    F: ServerServiceFactory<Io>,
     Io: FromStream + Send + 'static,
 {
     pub(crate) fn create(
@@ -111,7 +116,7 @@ where
 
 impl<F, Io> InternalServiceFactory for StreamNewService<F, Io>
 where
-    F: ServiceFactory<Io>,
+    F: ServerServiceFactory<Io>,
     Io: FromStream + Send + 'static,
 {
     fn name(&self, _: usize) -> &str {
@@ -143,7 +148,7 @@ where
     }
 }
 
-impl<F, T, I> ServiceFactory<I> for F
+impl<F, T, I> ServerServiceFactory<I> for F
 where
     F: Fn() -> T + Send + Clone + 'static,
     T: BaseServiceFactory<I, Config = ()>,

actix-server/src/signals.rs

@@ -5,13 +5,13 @@ use std::{
     task::{Context, Poll},
 };
 
-use log::trace;
+use tracing::trace;
 
 /// Types of process signals.
 // #[allow(dead_code)]
 #[derive(Debug, Clone, Copy, PartialEq)]
 #[allow(dead_code)] // variants are never constructed on non-unix
-pub(crate) enum Signal {
+pub(crate) enum SignalKind {
     /// `SIGINT`
     Int,
 
@@ -22,12 +22,12 @@ pub(crate) enum Signal {
     Quit,
 }
 
-impl fmt::Display for Signal {
+impl fmt::Display for SignalKind {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.write_str(match self {
-            Signal::Int => "SIGINT",
-            Signal::Term => "SIGTERM",
-            Signal::Quit => "SIGQUIT",
+            SignalKind::Int => "SIGINT",
+            SignalKind::Term => "SIGTERM",
+            SignalKind::Quit => "SIGQUIT",
         })
     }
 }
@@ -38,7 +38,7 @@ pub(crate) struct Signals {
     signals: futures_core::future::BoxFuture<'static, std::io::Result<()>>,
 
     #[cfg(unix)]
-    signals: Vec<(Signal, actix_rt::signal::unix::Signal)>,
+    signals: Vec<(SignalKind, actix_rt::signal::unix::Signal)>,
 }
 
 impl Signals {
@@ -58,9 +58,9 @@ impl Signals {
             use actix_rt::signal::unix;
 
             let sig_map = [
-                (unix::SignalKind::interrupt(), Signal::Int),
-                (unix::SignalKind::terminate(), Signal::Term),
-                (unix::SignalKind::quit(), Signal::Quit),
+                (unix::SignalKind::interrupt(), SignalKind::Int),
+                (unix::SignalKind::terminate(), SignalKind::Term),
+                (unix::SignalKind::quit(), SignalKind::Quit),
             ];
 
             let signals = sig_map
@@ -69,8 +69,8 @@ impl Signals {
                     unix::signal(*kind)
                         .map(|tokio_sig| (*sig, tokio_sig))
                         .map_err(|e| {
-                            log::error!(
-                                "Can not initialize stream handler for {:?} err: {}",
+                            tracing::error!(
+                                "can not initialize stream handler for {:?} err: {}",
                                 sig,
                                 e
                             )
@@ -85,18 +85,17 @@ impl Signals {
 }
 
 impl Future for Signals {
-    type Output = Signal;
+    type Output = SignalKind;
 
     fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         #[cfg(not(unix))]
         {
-            self.signals.as_mut().poll(cx).map(|_| Signal::Int)
+            self.signals.as_mut().poll(cx).map(|_| SignalKind::Int)
         }
 
         #[cfg(unix)]
         {
             for (sig, fut) in self.signals.iter_mut() {
-                // TODO: match on if let Some ?
                 if Pin::new(fut).poll_recv(cx).is_ready() {
                     trace!("{} received", sig);
                     return Poll::Ready(*sig);

actix-server/src/socket.rs

@@ -1,19 +1,17 @@
 pub(crate) use std::net::{
     SocketAddr as StdSocketAddr, TcpListener as StdTcpListener, ToSocketAddrs,
 };
+use std::{fmt, io};
 
+use actix_rt::net::TcpStream;
 pub(crate) use mio::net::TcpListener as MioTcpListener;
+use mio::{event::Source, Interest, Registry, Token};
 #[cfg(unix)]
 pub(crate) use {
     mio::net::UnixListener as MioUnixListener,
     std::os::unix::net::UnixListener as StdUnixListener,
 };
 
-use std::{fmt, io};
-
-use actix_rt::net::TcpStream;
-use mio::{event::Source, Interest, Registry, Token};
-
 pub(crate) enum MioListener {
     Tcp(MioTcpListener),
     #[cfg(unix)]
@@ -159,24 +157,24 @@ pub enum MioStream {
     Uds(mio::net::UnixStream),
 }
 
-/// helper trait for converting mio stream to tokio stream.
+/// Helper trait for converting a Mio stream into a Tokio stream.
 pub trait FromStream: Sized {
     fn from_mio(sock: MioStream) -> io::Result<Self>;
 }
 
 #[cfg(windows)]
 mod win_impl {
-    use super::*;
-
     use std::os::windows::io::{FromRawSocket, IntoRawSocket};
 
-    // FIXME: This is a workaround and we need an efficient way to convert between mio and tokio stream
+    use super::*;
+
+    // TODO: This is a workaround and we need an efficient way to convert between Mio and Tokio stream
     impl FromStream for TcpStream {
         fn from_mio(sock: MioStream) -> io::Result<Self> {
             match sock {
                 MioStream::Tcp(mio) => {
                     let raw = IntoRawSocket::into_raw_socket(mio);
-                    // SAFETY: This is a in place conversion from mio stream to tokio stream.
+                    // SAFETY: This is an in-place conversion from Mio stream to Tokio stream.
                     TcpStream::from_std(unsafe { FromRawSocket::from_raw_socket(raw) })
                 }
             }
@@ -186,19 +184,19 @@ mod win_impl {
 
 #[cfg(unix)]
 mod unix_impl {
-    use super::*;
-
     use std::os::unix::io::{FromRawFd, IntoRawFd};
 
     use actix_rt::net::UnixStream;
 
-    // FIXME: This is a workaround and we need an efficient way to convert between mio and tokio stream
+    use super::*;
+
+    // HACK: This is a workaround and we need an efficient way to convert between Mio and Tokio stream
     impl FromStream for TcpStream {
         fn from_mio(sock: MioStream) -> io::Result<Self> {
             match sock {
                 MioStream::Tcp(mio) => {
                     let raw = IntoRawFd::into_raw_fd(mio);
-                    // SAFETY: This is a in place conversion from mio stream to tokio stream.
+                    // SAFETY: This is an in-place conversion from Mio stream to Tokio stream.
                     TcpStream::from_std(unsafe { FromRawFd::from_raw_fd(raw) })
                 }
                 MioStream::Uds(_) => {
@@ -208,14 +206,14 @@ mod unix_impl {
         }
     }
 
-    // FIXME: This is a workaround and we need an efficient way to convert between mio and tokio stream
+    // HACK: This is a workaround and we need an efficient way to convert between Mio and Tokio stream
     impl FromStream for UnixStream {
         fn from_mio(sock: MioStream) -> io::Result<Self> {
             match sock {
                 MioStream::Tcp(_) => panic!("Should not happen, bug in server impl"),
                 MioStream::Uds(mio) => {
                     let raw = IntoRawFd::into_raw_fd(mio);
-                    // SAFETY: This is a in place conversion from mio stream to tokio stream.
+                    // SAFETY: This is an in-place conversion from Mio stream to Tokio stream.
                     UnixStream::from_std(unsafe { FromRawFd::from_raw_fd(raw) })
                 }
             }

actix-server/src/test_server.rs

@@ -2,7 +2,7 @@ use std::{io, net, sync::mpsc, thread};
 
 use actix_rt::{net::TcpStream, System};
 
-use crate::{Server, ServerBuilder, ServerHandle, ServiceFactory};
+use crate::{Server, ServerBuilder, ServerHandle, ServerServiceFactory};
 
 /// A testing server.
 ///
@@ -16,7 +16,7 @@ use crate::{Server, ServerBuilder, ServerHandle, ServiceFactory};
 ///
 /// #[actix_rt::main]
 /// async fn main() {
-///     let srv = TestServer::with(|| fn_service(
+///     let srv = TestServer::start(|| fn_service(
 ///         |sock| async move {
 ///             println!("New connection: {:?}", sock);
 ///             Ok::<_, ()>(())
@@ -28,8 +28,8 @@ use crate::{Server, ServerBuilder, ServerHandle, ServiceFactory};
 /// ```
 pub struct TestServer;
 
-/// Test server runtime
-pub struct TestServerRuntime {
+/// Test server handle.
+pub struct TestServerHandle {
     addr: net::SocketAddr,
     host: String,
     port: u16,
@@ -38,46 +38,26 @@ pub struct TestServerRuntime {
 }
 
 impl TestServer {
-    /// Start new server with server builder.
-    pub fn start<F>(mut factory: F) -> TestServerRuntime
-    where
-        F: FnMut(ServerBuilder) -> ServerBuilder + Send + 'static,
-    {
-        let (tx, rx) = mpsc::channel();
-
-        // run server in separate thread
-        let thread_handle = thread::spawn(move || {
-            System::new().block_on(async {
-                let server = factory(Server::build()).workers(1).disable_signals().run();
-                tx.send(server.handle()).unwrap();
-                server.await
-            })
-        });
-
-        let server_handle = rx.recv().unwrap();
-
-        TestServerRuntime {
-            addr: "127.0.0.1:0".parse().unwrap(),
-            host: "127.0.0.1".to_string(),
-            port: 0,
-            server_handle,
-            thread_handle: Some(thread_handle),
-        }
+    /// Start new `TestServer` using application factory and default server config.
+    pub fn start(factory: impl ServerServiceFactory<TcpStream>) -> TestServerHandle {
+        Self::start_with_builder(Server::build(), factory)
     }
 
-    /// Start new test server with application factory.
-    pub fn with<F: ServiceFactory<TcpStream>>(factory: F) -> TestServerRuntime {
+    /// Start new `TestServer` using application factory and server builder.
+    pub fn start_with_builder(
+        server_builder: ServerBuilder,
+        factory: impl ServerServiceFactory<TcpStream>,
+    ) -> TestServerHandle {
         let (tx, rx) = mpsc::channel();
 
         // run server in separate thread
         let thread_handle = thread::spawn(move || {
-            let sys = System::new();
-            let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
-            let local_addr = tcp.local_addr().unwrap();
+            let lst = net::TcpListener::bind("127.0.0.1:0").unwrap();
+            let local_addr = lst.local_addr().unwrap();
 
-            sys.block_on(async {
-                let server = Server::build()
-                    .listen("test", tcp, factory)
+            System::new().block_on(async {
+                let server = server_builder
+                    .listen("test", lst, factory)
                     .unwrap()
                     .workers(1)
                     .disable_signals()
@@ -93,7 +73,7 @@ impl TestServer {
         let host = format!("{}", addr.ip());
         let port = addr.port();
 
-        TestServerRuntime {
+        TestServerHandle {
             addr,
             host,
             port,
@@ -107,17 +87,19 @@ impl TestServer {
         use socket2::{Domain, Protocol, Socket, Type};
 
         let addr: net::SocketAddr = "127.0.0.1:0".parse().unwrap();
-        let socket =
-            Socket::new(Domain::for_address(addr), Type::STREAM, Some(Protocol::TCP)).unwrap();
+        let domain = Domain::for_address(addr);
+        let socket = Socket::new(domain, Type::STREAM, Some(Protocol::TCP)).unwrap();
+
         socket.set_reuse_address(true).unwrap();
         socket.set_nonblocking(true).unwrap();
         socket.bind(&addr.into()).unwrap();
         socket.listen(1024).unwrap();
+
         net::TcpListener::from(socket).local_addr().unwrap()
     }
 }
 
-impl TestServerRuntime {
+impl TestServerHandle {
     /// Test server host.
     pub fn host(&self) -> &str {
         &self.host
@@ -140,12 +122,12 @@ impl TestServerRuntime {
     }
 
     /// Connect to server, returning a Tokio `TcpStream`.
-    pub fn connect(&self) -> std::io::Result<TcpStream> {
+    pub fn connect(&self) -> io::Result<TcpStream> {
         TcpStream::from_std(net::TcpStream::connect(self.addr)?)
     }
 }
 
-impl Drop for TestServerRuntime {
+impl Drop for TestServerHandle {
     fn drop(&mut self) {
         self.stop()
     }
@@ -158,8 +140,14 @@ mod tests {
     use super::*;
 
     #[tokio::test]
-    async fn plain_tokio_runtime() {
-        let srv = TestServer::with(|| fn_service(|_sock| async move { Ok::<_, ()>(()) }));
+    async fn connect_in_tokio_runtime() {
+        let srv = TestServer::start(|| fn_service(|_sock| async move { Ok::<_, ()>(()) }));
+        assert!(srv.connect().is_ok());
+    }
+
+    #[actix_rt::test]
+    async fn connect_in_actix_runtime() {
+        let srv = TestServer::start(|| fn_service(|_sock| async move { Ok::<_, ()>(()) }));
         assert!(srv.connect().is_ok());
     }
 }

actix-server/src/worker.rs

@@ -17,11 +17,11 @@ use actix_rt::{
     Arbiter, ArbiterHandle, System,
 };
 use futures_core::{future::LocalBoxFuture, ready};
-use log::{error, info, trace};
 use tokio::sync::{
     mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender},
     oneshot,
 };
+use tracing::{error, info, trace};
 
 use crate::{
     service::{BoxedServerService, InternalServiceFactory},
@@ -250,7 +250,7 @@ pub(crate) struct ServerWorkerConfig {
 impl Default for ServerWorkerConfig {
     fn default() -> Self {
         // 512 is the default max blocking thread count of tokio runtime.
-        let max_blocking_threads = std::cmp::max(512 / num_cpus::get(), 1);
+        let max_blocking_threads = std::cmp::max(512 / num_cpus::get_physical(), 1);
         Self {
             shutdown_timeout: Duration::from_secs(30),
             max_blocking_threads,
@@ -337,7 +337,7 @@ impl ServerWorker {
                                     Ok((token, svc)) => services.push((idx, token, svc)),
 
                                     Err(err) => {
-                                        error!("Can not start worker: {:?}", err);
+                                        error!("can not start worker: {:?}", err);
                                         return Err(io::Error::new(
                                             io::ErrorKind::Other,
                                             format!("can not start server service {}", idx),
@@ -436,7 +436,7 @@ impl ServerWorker {
                                 Ok((token, svc)) => services.push((idx, token, svc)),
 
                                 Err(err) => {
-                                    error!("Can not start worker: {:?}", err);
+                                    error!("can not start worker: {:?}", err);
                                     Arbiter::current().stop();
                                     factory_tx
                                         .send(Err(io::Error::new(
@@ -476,7 +476,7 @@ impl ServerWorker {
 
     fn restart_service(&mut self, idx: usize, factory_id: usize) {
         let factory = &self.factories[factory_id];
-        trace!("Service {:?} failed, restarting", factory.name(idx));
+        trace!("service {:?} failed, restarting", factory.name(idx));
         self.services[idx].status = WorkerServiceStatus::Restarting;
         self.state = WorkerState::Restarting(Restart {
             factory_id,
@@ -508,7 +508,7 @@ impl ServerWorker {
                     Poll::Ready(Ok(_)) => {
                         if srv.status == WorkerServiceStatus::Unavailable {
                             trace!(
-                                "Service {:?} is available",
+                                "service {:?} is available",
                                 self.factories[srv.factory_idx].name(idx)
                             );
                             srv.status = WorkerServiceStatus::Available;
@@ -519,7 +519,7 @@ impl ServerWorker {
 
                         if srv.status == WorkerServiceStatus::Available {
                             trace!(
-                                "Service {:?} is unavailable",
+                                "service {:?} is unavailable",
                                 self.factories[srv.factory_idx].name(idx)
                             );
                             srv.status = WorkerServiceStatus::Unavailable;
@@ -527,7 +527,7 @@ impl ServerWorker {
                     }
                     Poll::Ready(Err(_)) => {
                         error!(
-                            "Service {:?} readiness check returned error, restarting",
+                            "service {:?} readiness check returned error, restarting",
                             self.factories[srv.factory_idx].name(idx)
                         );
                         srv.status = WorkerServiceStatus::Failed;
@@ -590,11 +590,11 @@ impl Future for ServerWorker {
         {
             let num = this.counter.total();
             if num == 0 {
-                info!("Shutting down idle worker");
+                info!("shutting down idle worker");
                 let _ = tx.send(true);
                 return Poll::Ready(());
             } else if graceful {
-                info!("Graceful worker shutdown; finishing {} connections", num);
+                info!("graceful worker shutdown; finishing {} connections", num);
                 this.shutdown(false);
 
                 this.state = WorkerState::Shutdown(Shutdown {
@@ -603,7 +603,7 @@ impl Future for ServerWorker {
                     tx,
                 });
             } else {
-                info!("Force shutdown worker, closing {} connections", num);
+                info!("force shutdown worker, closing {} connections", num);
                 this.shutdown(true);
 
                 let _ = tx.send(false);
@@ -638,7 +638,7 @@ impl Future for ServerWorker {
                 assert_eq!(token, token_new);
 
                 trace!(
-                    "Service {:?} has been restarted",
+                    "service {:?} has been restarted",
                     this.factories[factory_id].name(token)
                 );
 
@@ -685,7 +685,7 @@ impl Future for ServerWorker {
                 match this.check_readiness(cx) {
                     Ok(true) => {}
                     Ok(false) => {
-                        trace!("Worker is unavailable");
+                        trace!("worker is unavailable");
                         this.state = WorkerState::Unavailable;
                         return self.poll(cx);
                     }

actix-server/tests/server.rs

@@ -26,20 +26,54 @@ fn test_bind() {
             let srv = Server::build()
                 .workers(1)
                 .disable_signals()
+                .shutdown_timeout(3600)
                 .bind("test", addr, move || {
                     fn_service(|_| async { Ok::<_, ()>(()) })
                 })?
                 .run();
 
-            let _ = tx.send(srv.handle());
-
+            tx.send(srv.handle()).unwrap();
             srv.await
         })
     });
+
     let srv = rx.recv().unwrap();
 
     thread::sleep(Duration::from_millis(500));
-    assert!(net::TcpStream::connect(addr).is_ok());
+
+    net::TcpStream::connect(addr).unwrap();
+
+    let _ = srv.stop(true);
+    h.join().unwrap().unwrap();
+}
+
+#[test]
+fn test_listen() {
+    let addr = unused_addr();
+    let (tx, rx) = mpsc::channel();
+    let lst = net::TcpListener::bind(addr).unwrap();
+
+    let h = thread::spawn(move || {
+        actix_rt::System::new().block_on(async {
+            let srv = Server::build()
+                .workers(1)
+                .disable_signals()
+                .shutdown_timeout(3600)
+                .listen("test", lst, move || {
+                    fn_service(|_| async { Ok::<_, ()>(()) })
+                })?
+                .run();
+
+            tx.send(srv.handle()).unwrap();
+            srv.await
+        })
+    });
+
+    let srv = rx.recv().unwrap();
+
+    thread::sleep(Duration::from_millis(500));
+
+    net::TcpStream::connect(addr).unwrap();
 
     let _ = srv.stop(true);
     h.join().unwrap().unwrap();
@@ -80,38 +114,6 @@ fn plain_tokio_runtime() {
     h.join().unwrap().unwrap();
 }
 
-#[test]
-fn test_listen() {
-    let addr = unused_addr();
-    let lst = net::TcpListener::bind(addr).unwrap();
-
-    let (tx, rx) = mpsc::channel();
-
-    let h = thread::spawn(move || {
-        actix_rt::System::new().block_on(async {
-            let srv = Server::build()
-                .disable_signals()
-                .workers(1)
-                .listen("test", lst, move || {
-                    fn_service(|_| async { Ok::<_, ()>(()) })
-                })?
-                .run();
-
-            let _ = tx.send(srv.handle());
-
-            srv.await
-        })
-    });
-
-    let srv = rx.recv().unwrap();
-
-    thread::sleep(Duration::from_millis(500));
-    assert!(net::TcpStream::connect(addr).is_ok());
-
-    let _ = srv.stop(true);
-    h.join().unwrap().unwrap();
-}
-
 #[test]
 #[cfg(unix)]
 fn test_start() {
@@ -184,9 +186,9 @@ fn test_start() {
 #[actix_rt::test]
 async fn test_max_concurrent_connections() {
     // Note:
-    // A tcp listener would accept connects based on it's backlog setting.
+    // A TCP listener would accept connects based on it's backlog setting.
     //
-    // The limit test on the other hand is only for concurrent tcp stream limiting a work
+    // The limit test on the other hand is only for concurrent TCP stream limiting a work
     // thread accept.
 
     use tokio::io::AsyncWriteExt;
@@ -252,6 +254,7 @@ async fn test_max_concurrent_connections() {
     h.join().unwrap().unwrap();
 }
 
+// TODO: race-y failures detected due to integer underflow when calling Counter::total
 #[actix_rt::test]
 async fn test_service_restart() {
     use std::task::{Context, Poll};
@@ -487,27 +490,46 @@ async fn worker_restart() {
 }
 
 #[test]
-#[should_panic]
-fn no_runtime() {
-    // test set up in a way that would prevent time out if support for runtime-less init was added
+fn no_runtime_on_init() {
+    use std::{thread::sleep, time::Duration};
 
     let addr = unused_addr();
+    let counter = Arc::new(AtomicUsize::new(0));
 
-    let srv = Server::build()
-        .workers(1)
+    let mut srv = Server::build()
+        .workers(2)
         .disable_signals()
-        .bind("test", addr, move || {
-            fn_service(|_| async { Ok::<_, ()>(()) })
+        .bind("test", addr, {
+            let counter = counter.clone();
+            move || {
+                counter.fetch_add(1, Ordering::SeqCst);
+                fn_service(|_| async { Ok::<_, ()>(()) })
+            }
         })
         .unwrap()
         .run();
 
+    fn is_send<T: Send>(_: &T) {}
+    is_send(&srv);
+    is_send(&srv.handle());
+
+    sleep(Duration::from_millis(1_000));
+    assert_eq!(counter.load(Ordering::SeqCst), 0);
+
     let rt = tokio::runtime::Builder::new_current_thread()
         .enable_all()
         .build()
         .unwrap();
 
-    let _ = srv.handle().stop(true);
+    rt.block_on(async move {
+        let _ = futures_util::poll!(&mut srv);
 
-    rt.block_on(async { srv.await }).unwrap();
+        // available after the first poll
+        sleep(Duration::from_millis(500));
+        assert_eq!(counter.load(Ordering::SeqCst), 2);
+
+        let _ = srv.handle().stop(true);
+        srv.await
+    })
+    .unwrap();
 }

actix-server/tests/testing_server.rs

@@ -0,0 +1,73 @@
+use std::net;
+
+use actix_rt::net::TcpStream;
+use actix_server::{Server, TestServer};
+use actix_service::fn_service;
+use bytes::BytesMut;
+use tokio::io::{AsyncReadExt as _, AsyncWriteExt as _};
+
+macro_rules! await_timeout_ms {
+    ($fut:expr, $limit:expr) => {
+        ::actix_rt::time::timeout(::std::time::Duration::from_millis($limit), $fut)
+            .await
+            .unwrap()
+            .unwrap();
+    };
+}
+
+#[tokio::test]
+async fn testing_server_echo() {
+    let srv = TestServer::start(|| {
+        fn_service(move |mut stream: TcpStream| async move {
+            let mut size = 0;
+            let mut buf = BytesMut::new();
+
+            match stream.read_buf(&mut buf).await {
+                Ok(0) => return Err(()),
+
+                Ok(bytes_read) => {
+                    stream.write_all(&buf[size..]).await.unwrap();
+                    size += bytes_read;
+                }
+
+                Err(_) => return Err(()),
+            }
+
+            Ok((buf.freeze(), size))
+        })
+    });
+
+    let mut conn = srv.connect().unwrap();
+
+    await_timeout_ms!(conn.write_all(b"test"), 200);
+
+    let mut buf = Vec::new();
+    await_timeout_ms!(conn.read_to_end(&mut buf), 200);
+
+    assert_eq!(&buf, b"test".as_ref());
+}
+
+#[tokio::test]
+async fn new_with_builder() {
+    let alt_addr = TestServer::unused_addr();
+
+    let srv = TestServer::start_with_builder(
+        Server::build()
+            .bind("alt", alt_addr, || {
+                fn_service(|_| async { Ok::<_, ()>(()) })
+            })
+            .unwrap(),
+        || {
+            fn_service(|mut sock: TcpStream| async move {
+                let mut buf = [0u8; 16];
+                sock.read_exact(&mut buf).await
+            })
+        },
+    );
+
+    // connect to test server
+    srv.connect().unwrap();
+
+    // connect to alt service defined in custom ServerBuilder
+    TcpStream::from_std(net::TcpStream::connect(alt_addr).unwrap()).unwrap();
+}

actix-service/CHANGES.md

@@ -1,54 +1,63 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+
+## 2.0.2 - 2021-12-18
+- Service types can now be `Send` and `'static` regardless of request, response, and config types, etc. [#397]
+
+[#397]: https://github.com/actix/actix-net/pull/397
 
 
 ## 2.0.1 - 2021-10-11
-* Documentation fix.
+- Documentation fix. [#388]
+
+[#388]: https://github.com/actix/actix-net/pull/388
 
 
 ## 2.0.0 - 2021-04-16
-* Removed pipeline and related structs/functions. [#335]
+- Removed pipeline and related structs/functions. [#335]
 
 [#335]: https://github.com/actix/actix-net/pull/335
 
 
 ## 2.0.0-beta.5 - 2021-03-15
-* Add default `Service` trait impl for `Rc<S: Service>` and `&S: Service`. [#288]
-* Add `boxed::rc_service` function for constructing `boxed::RcService` type [#290]
+- Add default `Service` trait impl for `Rc<S: Service>` and `&S: Service`. [#288]
+- Add `boxed::rc_service` function for constructing `boxed::RcService` type [#290]
 
 [#288]: https://github.com/actix/actix-net/pull/288
 [#290]: https://github.com/actix/actix-net/pull/290
 
 
 ## 2.0.0-beta.4 - 2021-02-04
-* `Service::poll_ready` and `Service::call` receive `&self`. [#247]
-* `apply_fn` and `apply_fn_factory` now receive `Fn(Req, &Service)` function type. [#247]
-* `apply_cfg` and `apply_cfg_factory` now receive `Fn(Req, &Service)` function type. [#247]
-* `fn_service` and friends now receive `Fn(Req)` function type. [#247]
+- `Service::poll_ready` and `Service::call` receive `&self`. [#247]
+- `apply_fn` and `apply_fn_factory` now receive `Fn(Req, &Service)` function type. [#247]
+- `apply_cfg` and `apply_cfg_factory` now receive `Fn(Req, &Service)` function type. [#247]
+- `fn_service` and friends now receive `Fn(Req)` function type. [#247]
 
 [#247]: https://github.com/actix/actix-net/pull/247
 
 
 ## 2.0.0-beta.3 - 2021-01-09
-* The `forward_ready!` macro converts errors. [#246]
+- The `forward_ready!` macro converts errors. [#246]
 
 [#246]: https://github.com/actix/actix-net/pull/246
 
 
 ## 2.0.0-beta.2 - 2021-01-03
-* Remove redundant type parameter from `map_config`.
+- Remove redundant type parameter from `map_config`.
 
 
 ## 2.0.0-beta.1 - 2020-12-28
-* `Service`, other traits, and many type signatures now take the the request type as a type
+- `Service`, other traits, and many type signatures now take the the request type as a type
   parameter instead of an associated type. [#232]
-* Add `always_ready!` and `forward_ready!` macros. [#233]
-* Crate is now `no_std`. [#233]
-* Migrate pin projections to `pin-project-lite`. [#233]
-* Remove `AndThenApplyFn` and Pipeline `and_then_apply_fn`. Use the
+- Add `always_ready!` and `forward_ready!` macros. [#233]
+- Crate is now `no_std`. [#233]
+- Migrate pin projections to `pin-project-lite`. [#233]
+- Remove `AndThenApplyFn` and Pipeline `and_then_apply_fn`. Use the
   `.and_then(apply_fn(...))` construction. [#233]
-* Move non-vital methods to `ServiceExt` and `ServiceFactoryExt` extension traits. [#235]
+- Move non-vital methods to `ServiceExt` and `ServiceFactoryExt` extension traits. [#235]
 
 [#232]: https://github.com/actix/actix-net/pull/232
 [#233]: https://github.com/actix/actix-net/pull/233
@@ -56,123 +65,123 @@
 
 
 ## 1.0.6 - 2020-08-09
-* Removed unsound custom Cell implementation that allowed obtaining several mutable references to
+- Removed unsound custom Cell implementation that allowed obtaining several mutable references to
   the same data, which is undefined behavior in Rust and could lead to violations of memory safety. External code could obtain several mutable references to the same data through
   service combinators. Attempts to acquire several mutable references to the same data will instead
   result in a panic.
 
 
 ## 1.0.5 - 2020-01-16
-* Fixed unsoundness in .and_then()/.then() service combinators.
+- Fixed unsoundness in .and_then()/.then() service combinators.
 
 
 ## 1.0.4 - 2020-01-15
-* Revert 1.0.3 change
+- Revert 1.0.3 change
 
 
 ## 1.0.3 - 2020-01-15
-* Fixed unsoundness in `AndThenService` impl.
+- Fixed unsoundness in `AndThenService` impl.
 
 
 ## 1.0.2 - 2020-01-08
-* Add `into_service` helper function.
+- Add `into_service` helper function.
 
 
 ## 1.0.1 - 2019-12-22
-* `map_config()` and `unit_config()` now accept `IntoServiceFactory` type.
+- `map_config()` and `unit_config()` now accept `IntoServiceFactory` type.
 
 
 ## 1.0.0 - 2019-12-11
-* Add Clone impl for Apply service
+- Add Clone impl for Apply service
 
 
 ## 1.0.0-alpha.4 - 2019-12-08
-* Renamed `service_fn` to `fn_service`
-* Renamed `factory_fn` to `fn_factory`
-* Renamed `factory_fn_cfg` to `fn_factory_with_config`
+- Renamed `service_fn` to `fn_service`
+- Renamed `factory_fn` to `fn_factory`
+- Renamed `factory_fn_cfg` to `fn_factory_with_config`
 
 
 ## 1.0.0-alpha.3 - 2019-12-06
-* Add missing Clone impls
-* Restore `Transform::map_init_err()` combinator
-* Restore `Service/Factory::apply_fn()` in form of `Pipeline/Factory::and_then_apply_fn()`
-* Optimize service combinators and futures memory layout
+- Add missing Clone impls
+- Restore `Transform::map_init_err()` combinator
+- Restore `Service/Factory::apply_fn()` in form of `Pipeline/Factory::and_then_apply_fn()`
+- Optimize service combinators and futures memory layout
 
 
 ## 1.0.0-alpha.2 - 2019-12-02
-* Use owned config value for service factory
-* Renamed BoxedNewService/BoxedService to BoxServiceFactory/BoxService
+- Use owned config value for service factory
+- Renamed BoxedNewService/BoxedService to BoxServiceFactory/BoxService
 
 
 ## 1.0.0-alpha.1 - 2019-11-25
-* Migrated to `std::future`
-* `NewService` renamed to `ServiceFactory`
-* Added `pipeline` and `pipeline_factory` function
+- Migrated to `std::future`
+- `NewService` renamed to `ServiceFactory`
+- Added `pipeline` and `pipeline_factory` function
 
 
 ## 0.4.2 - 2019-08-27
-* Check service readiness for `new_apply_cfg` combinator
+- Check service readiness for `new_apply_cfg` combinator
 
 
 ## 0.4.1 - 2019-06-06
-* Add `new_apply_cfg` function
+- Add `new_apply_cfg` function
 
 
 ## 0.4.0 - 2019-05-12
-* Add `NewService::map_config` and `NewService::unit_config` combinators.
-* Use associated type for `NewService` config.
-* Change `apply_cfg` function.
-* Renamed helper functions.
+- Add `NewService::map_config` and `NewService::unit_config` combinators.
+- Use associated type for `NewService` config.
+- Change `apply_cfg` function.
+- Renamed helper functions.
 
 
 ## 0.3.6 - 2019-04-07
-* Poll boxed service call result immediately
+- Poll boxed service call result immediately
 
 
 ## 0.3.5 - 2019-03-29
-* Add `impl<S: Service> Service for Rc<RefCell<S>>`.
+- Add `impl<S: Service> Service for Rc<RefCell<S>>`.
 
 
 ## 0.3.4 - 2019-03-12
-* Add `Transform::from_err()` combinator
-* Add `apply_fn` helper
-* Add `apply_fn_factory` helper
-* Add `apply_transform` helper
-* Add `apply_cfg` helper
+- Add `Transform::from_err()` combinator
+- Add `apply_fn` helper
+- Add `apply_fn_factory` helper
+- Add `apply_transform` helper
+- Add `apply_cfg` helper
 
 
 ## 0.3.3 - 2019-03-09
-* Add `ApplyTransform` new service for transform and new service.
-* Add `NewService::apply_cfg()` combinator, allows to use nested `NewService` with different config parameter.
-* Revert IntoFuture change
+- Add `ApplyTransform` new service for transform and new service.
+- Add `NewService::apply_cfg()` combinator, allows to use nested `NewService` with different config parameter.
+- Revert IntoFuture change
 
 
 ## 0.3.2 - 2019-03-04
-* Change `NewService::Future` and `Transform::Future` to the `IntoFuture` trait.
-* Export `AndThenTransform` type
+- Change `NewService::Future` and `Transform::Future` to the `IntoFuture` trait.
+- Export `AndThenTransform` type
 
 
 ## 0.3.1 - 2019-03-04
-* Simplify Transform trait
+- Simplify Transform trait
 
 
 ## 0.3.0 - 2019-03-02
-* Added boxed NewService and Service.
-* Added `Config` parameter to `NewService` trait.
-* Added `Config` parameter to `NewTransform` trait.
+- Added boxed NewService and Service.
+- Added `Config` parameter to `NewService` trait.
+- Added `Config` parameter to `NewTransform` trait.
 
 
 ## 0.2.2 - 2019-02-19
-* Added `NewService` impl for `Rc<S> where S: NewService`
-* Added `NewService` impl for `Arc<S> where S: NewService`
+- Added `NewService` impl for `Rc<S> where S: NewService`
+- Added `NewService` impl for `Arc<S> where S: NewService`
 
 
 ## 0.2.1 - 2019-02-03
-* Generalize `.apply` combinator with Transform trait
+- Generalize `.apply` combinator with Transform trait
 
 
 ## 0.2.0 - 2019-02-01
-* Use associated type instead of generic for Service definition.
+- Use associated type instead of generic for Service definition.
   * Before:
     ```rust
     impl Service<Request> for Client {
@@ -191,29 +200,29 @@
 
 
 ## 0.1.6 - 2019-01-24
-* Use `FnMut` instead of `Fn` for .apply() and .map() combinators and `FnService` type
-* Change `.apply()` error semantic, new service's error is `From<Self::Error>`
+- Use `FnMut` instead of `Fn` for .apply() and .map() combinators and `FnService` type
+- Change `.apply()` error semantic, new service's error is `From<Self::Error>`
 
 
 ## 0.1.5 - 2019-01-13
-* Make `Out::Error` convertible from `T::Error` for apply combinator
+- Make `Out::Error` convertible from `T::Error` for apply combinator
 
 
 ## 0.1.4 - 2019-01-11
-* Use `FnMut` instead of `Fn` for `FnService`
+- Use `FnMut` instead of `Fn` for `FnService`
 
 
 ## 0.1.3 - 2018-12-12
-* Split service combinators to separate trait
+- Split service combinators to separate trait
 
 
 ## 0.1.2 - 2018-12-12
-* Release future early for `.and_then()` and `.then()` combinators
+- Release future early for `.and_then()` and `.then()` combinators
 
 
 ## 0.1.1 - 2018-12-09
-* Added Service impl for `Box<S: Service>`
+- Added Service impl for `Box<S: Service>`
 
 
 ## 0.1.0 - 2018-12-09
-* Initial import
+- Initial import

actix-service/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-service"
-version = "2.0.1"
+version = "2.0.2"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -23,6 +23,6 @@ paste = "1"
 pin-project-lite = "0.2"
 
 [dev-dependencies]
-actix-rt = "2.0.0"
-actix-utils = "3.0.0"
+actix-rt = "2"
+actix-utils = "3"
 futures-util = { version = "0.3.7", default-features = false }

actix-service/README.md

@@ -3,10 +3,10 @@
 > Service trait and combinators for representing asynchronous request/response operations.
 
 [![crates.io](https://img.shields.io/crates/v/actix-service?label=latest)](https://crates.io/crates/actix-service)
-[![Documentation](https://docs.rs/actix-service/badge.svg?version=2.0.1)](https://docs.rs/actix-service/2.0.1)
+[![Documentation](https://docs.rs/actix-service/badge.svg?version=2.0.2)](https://docs.rs/actix-service/2.0.2)
 [![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
 ![License](https://img.shields.io/crates/l/actix-service.svg)
-[![Dependency Status](https://deps.rs/crate/actix-service/2.0.1/status.svg)](https://deps.rs/crate/actix-service/2.0.1)
+[![Dependency Status](https://deps.rs/crate/actix-service/2.0.2/status.svg)](https://deps.rs/crate/actix-service/2.0.2)
 ![Download](https://img.shields.io/crates/d/actix-service.svg)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)
 

actix-service/src/apply.rs

@@ -51,7 +51,7 @@ where
 {
     service: S,
     wrap_fn: F,
-    _phantom: PhantomData<(Req, In, Res, Err)>,
+    _phantom: PhantomData<fn(Req) -> (In, Res, Err)>,
 }
 
 impl<S, F, Fut, Req, In, Res, Err> Apply<S, F, Req, In, Res, Err>
@@ -106,7 +106,7 @@ where
 pub struct ApplyFactory<SF, F, Req, In, Res, Err> {
     factory: SF,
     wrap_fn: F,
-    _phantom: PhantomData<(Req, In, Res, Err)>,
+    _phantom: PhantomData<fn(Req) -> (In, Res, Err)>,
 }
 
 impl<SF, F, Fut, Req, In, Res, Err> ApplyFactory<SF, F, Req, In, Res, Err>
@@ -171,7 +171,7 @@ pin_project! {
         #[pin]
         fut: SF::Future,
         wrap_fn: Option<F>,
-        _phantom: PhantomData<(Req, Res)>,
+        _phantom: PhantomData<fn(Req) -> Res>,
     }
 }
 

actix-service/src/fn_service.rs

@@ -105,7 +105,7 @@ where
     Fut: Future<Output = Result<Res, Err>>,
 {
     f: F,
-    _t: PhantomData<Req>,
+    _t: PhantomData<fn(Req)>,
 }
 
 impl<F, Fut, Req, Res, Err> FnService<F, Fut, Req, Res, Err>
@@ -160,7 +160,7 @@ where
     Fut: Future<Output = Result<Res, Err>>,
 {
     f: F,
-    _t: PhantomData<(Req, Cfg)>,
+    _t: PhantomData<fn(Req, Cfg)>,
 }
 
 impl<F, Fut, Req, Res, Err, Cfg> FnServiceFactory<F, Fut, Req, Res, Err, Cfg>
@@ -237,7 +237,7 @@ where
     Srv: Service<Req>,
 {
     f: F,
-    _t: PhantomData<(Fut, Cfg, Req, Srv, Err)>,
+    _t: PhantomData<fn(Cfg, Req) -> (Fut, Srv, Err)>,
 }
 
 impl<F, Fut, Cfg, Srv, Req, Err> FnServiceConfig<F, Fut, Cfg, Srv, Req, Err>
@@ -293,7 +293,7 @@ where
     Fut: Future<Output = Result<Srv, Err>>,
 {
     f: F,
-    _t: PhantomData<(Cfg, Req)>,
+    _t: PhantomData<fn(Cfg, Req)>,
 }
 
 impl<F, Cfg, Srv, Req, Fut, Err> FnServiceNoConfig<F, Cfg, Srv, Req, Fut, Err>
@@ -391,4 +391,41 @@ mod tests {
         assert!(res.is_ok());
         assert_eq!(res.unwrap(), ("srv", 1));
     }
+
+    #[actix_rt::test]
+    async fn test_auto_impl_send() {
+        use alloc::rc::Rc;
+
+        use crate::{map_config, ServiceExt, ServiceFactoryExt};
+
+        let srv_1 = fn_service(|_: Rc<u8>| ok::<_, Rc<u8>>(Rc::new(0u8)));
+
+        let fac_1 = fn_factory_with_config(|_: Rc<u8>| {
+            ok::<_, Rc<u8>>(fn_service(|_: Rc<u8>| ok::<_, Rc<u8>>(Rc::new(0u8))))
+        });
+
+        let fac_2 = fn_factory(|| {
+            ok::<_, Rc<u8>>(fn_service(|_: Rc<u8>| ok::<_, Rc<u8>>(Rc::new(0u8))))
+        });
+
+        fn is_send<T: Send + Sync + Clone>(_: &T) {}
+
+        is_send(&fac_1);
+        is_send(&map_config(fac_1.clone(), |_: Rc<u8>| Rc::new(0u8)));
+        is_send(&fac_1.clone().map_err(|_| Rc::new(0u8)));
+        is_send(&fac_1.clone().map(|_| Rc::new(0u8)));
+        is_send(&fac_1.clone().map_init_err(|_| Rc::new(0u8)));
+        // `and_then` is always !Send
+        // is_send(&fac_1.clone().and_then(fac_1.clone()));
+        is_send(&fac_1.new_service(Rc::new(0u8)).await.unwrap());
+
+        is_send(&fac_2);
+        is_send(&fac_2.new_service(Rc::new(0u8)).await.unwrap());
+
+        is_send(&srv_1);
+        is_send(&ServiceExt::map(srv_1.clone(), |_| Rc::new(0u8)));
+        is_send(&ServiceExt::map_err(srv_1.clone(), |_| Rc::new(0u8)));
+        // `and_then` is always !Send
+        // is_send(&ServiceExt::and_then(srv_1.clone(), srv_1.clone()));
+    }
 }

actix-service/src/lib.rs

@@ -1,8 +1,8 @@
 //! See [`Service`] docs for information on this crate's foundational trait.
 
 #![no_std]
-#![deny(rust_2018_idioms, nonstandard_style, future_incompatible)]
-#![warn(missing_docs)]
+#![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible, missing_docs)]
 #![allow(clippy::type_complexity)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
@@ -38,10 +38,9 @@ pub use self::apply_cfg::{apply_cfg, apply_cfg_factory};
 pub use self::ext::{ServiceExt, ServiceFactoryExt, TransformExt};
 pub use self::fn_service::{fn_factory, fn_factory_with_config, fn_service};
 pub use self::map_config::{map_config, unit_config};
-pub use self::transform::{apply, ApplyTransform, Transform};
-
 #[allow(unused_imports)]
 use self::ready::{err, ok, ready, Ready};
+pub use self::transform::{apply, ApplyTransform, Transform};
 
 /// An asynchronous operation from `Request` to a `Response`.
 ///

actix-service/src/macros.rs

@@ -25,6 +25,8 @@
 ///     }
 /// }
 /// ```
+///
+/// [`forward_ready!`]: crate::forward_ready
 #[macro_export]
 macro_rules! always_ready {
     () => {

actix-service/src/map.rs

@@ -15,7 +15,7 @@ use super::{Service, ServiceFactory};
 pub struct Map<A, F, Req, Res> {
     service: A,
     f: F,
-    _t: PhantomData<(Req, Res)>,
+    _t: PhantomData<fn(Req) -> Res>,
 }
 
 impl<A, F, Req, Res> Map<A, F, Req, Res> {
@@ -97,7 +97,7 @@ where
 
         match this.fut.poll(cx) {
             Poll::Ready(Ok(resp)) => Poll::Ready(Ok((this.f)(resp))),
-            Poll::Ready(Err(e)) => Poll::Ready(Err(e)),
+            Poll::Ready(Err(err)) => Poll::Ready(Err(err)),
             Poll::Pending => Poll::Pending,
         }
     }
@@ -107,7 +107,7 @@ where
 pub struct MapServiceFactory<A, F, Req, Res> {
     a: A,
     f: F,
-    r: PhantomData<(Res, Req)>,
+    r: PhantomData<fn(Req) -> Res>,
 }
 
 impl<A, F, Req, Res> MapServiceFactory<A, F, Req, Res> {

actix-service/src/map_config.rs

@@ -28,7 +28,7 @@ where
 pub struct MapConfig<SF, Req, F, Cfg> {
     factory: SF,
     cfg_mapper: F,
-    e: PhantomData<(Cfg, Req)>,
+    e: PhantomData<fn(Cfg, Req)>,
 }
 
 impl<SF, Req, F, Cfg> MapConfig<SF, Req, F, Cfg> {
@@ -82,7 +82,7 @@ where
 /// `unit_config()` config combinator
 pub struct UnitConfig<SF, Cfg, Req> {
     factory: SF,
-    _phantom: PhantomData<(Cfg, Req)>,
+    _phantom: PhantomData<fn(Cfg, Req)>,
 }
 
 impl<SF, Cfg, Req> UnitConfig<SF, Cfg, Req>

actix-service/src/map_err.rs

@@ -15,7 +15,7 @@ use super::{Service, ServiceFactory};
 pub struct MapErr<S, Req, F, E> {
     service: S,
     mapper: F,
-    _t: PhantomData<(E, Req)>,
+    _t: PhantomData<fn(Req) -> E>,
 }
 
 impl<S, Req, F, E> MapErr<S, Req, F, E> {
@@ -111,7 +111,7 @@ where
 {
     a: SF,
     f: F,
-    e: PhantomData<(E, Req)>,
+    e: PhantomData<fn(Req) -> E>,
 }
 
 impl<SF, Req, F, E> MapErrServiceFactory<SF, Req, F, E>

actix-service/src/map_init_err.rs

@@ -13,7 +13,7 @@ use super::ServiceFactory;
 pub struct MapInitErr<A, F, Req, Err> {
     a: A,
     f: F,
-    e: PhantomData<(Req, Err)>,
+    e: PhantomData<fn(Req) -> Err>,
 }
 
 impl<A, F, Req, Err> MapInitErr<A, F, Req, Err>

actix-service/src/pipeline.rs

@@ -40,7 +40,7 @@ where
 /// Pipeline service - pipeline allows to compose multiple service into one service.
 pub(crate) struct Pipeline<S, Req> {
     service: S,
-    _phantom: PhantomData<Req>,
+    _phantom: PhantomData<fn(Req)>,
 }
 
 impl<S, Req> Pipeline<S, Req>
@@ -162,7 +162,7 @@ impl<S: Service<Req>, Req> Service<Req> for Pipeline<S, Req> {
 /// Pipeline factory
 pub(crate) struct PipelineFactory<SF, Req> {
     factory: SF,
-    _phantom: PhantomData<Req>,
+    _phantom: PhantomData<fn(Req)>,
 }
 
 impl<SF, Req> PipelineFactory<SF, Req>

actix-service/src/transform_err.rs

@@ -14,7 +14,7 @@ use super::Transform;
 pub struct TransformMapInitErr<T, S, Req, F, E> {
     transform: T,
     mapper: F,
-    _phantom: PhantomData<(S, Req, E)>,
+    _phantom: PhantomData<fn(Req) -> (S, E)>,
 }
 
 impl<T, S, F, E, Req> TransformMapInitErr<T, S, Req, F, E> {

actix-tls/CHANGES.md

@@ -1,48 +1,113 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+
+## 3.0.4 - 2022-03-15
+- Logs emitted now use the `tracing` crate with `log` compatibility. [#451]
+
+[#451]: https://github.com/actix/actix-net/pull/451
+
+
+## 3.0.3 - 2022-02-15
+- No significant changes since `3.0.2`.
+
+
+## 3.0.2 - 2022-01-28
+- Expose `connect::Connection::new`. [#439]
+
+[#439]: https://github.com/actix/actix-net/pull/439
+
+
+## 3.0.1 - 2022-01-11
+- No significant changes since `3.0.0`.
+
+
+## 3.0.0 - 2021-12-26
+- No significant changes since `3.0.0-rc.2`.
+
+
+## 3.0.0-rc.2 - 2021-12-10
+- Re-export `openssl::SslConnectorBuilder` in `connect::openssl::reexports`. [#429]
+
+[#429]: https://github.com/actix/actix-net/pull/429
+
+
+## 3.0.0-rc.1 - 2021-11-29
+### Added
+- Derive `Debug` for `connect::Connection`. [#422]
+- Implement `Display` for `accept::TlsError`. [#422]
+- Implement `Error` for `accept::TlsError` where both types also implement `Error`. [#422]
+- Implement `Default` for `connect::Resolver`. [#422]
+- Implement `Error` for `connect::ConnectError`. [#422]
+- Implement `Default` for `connect::tcp::{TcpConnector, TcpConnectorService}`. [#423]
+- Implement `Default` for `connect::ConnectorService`. [#423]
+
+### Changed
+- The crate's default features flags no longer include `uri`. [#422]
+- Useful re-exports from underlying TLS crates are exposed in a `reexports` modules in all acceptors and connectors.
+- Convert `connect::ResolverService` from enum to struct. [#422]
+- Make `ConnectAddrsIter` private. [#422]
+- Mark `tcp::{TcpConnector, TcpConnectorService}` structs `#[non_exhaustive]`. [#423]
+- Rename `accept::native_tls::{NativeTlsAcceptorService => AcceptorService}`. [#422]
+- Rename `connect::{Address => Host}` trait. [#422]
+- Rename method `connect::Connection::{host => hostname}`. [#422]
+- Rename struct `connect::{Connect => ConnectInfo}`. [#422]
+- Rename struct `connect::{ConnectService => ConnectorService}`. [#422]
+- Rename struct `connect::{ConnectServiceFactory => Connector}`. [#422]
+- Rename TLS acceptor service future types and hide from docs. [#422]
+- Unbox some service futures types. [#422]
+- Inline modules in `connect::tls` to `connect` module. [#422]
+
+### Removed
+- Remove `connect::{new_connector, new_connector_factory, default_connector, default_connector_factory}` methods. [#422]
+- Remove `connect::native_tls::Connector::service` method. [#422]
+- Remove redundant `connect::Connection::from_parts` method. [#422]
+
+[#422]: https://github.com/actix/actix-net/pull/422
+[#423]: https://github.com/actix/actix-net/pull/423
 
 
 ## 3.0.0-beta.9 - 2021-11-22
-* Add configurable timeout for accepting TLS connection. [#393]
-* Added `TlsError::Timeout` variant. [#393]
-* All TLS acceptor services now use `TlsError` for their error types. [#393]
-* Added `TlsError::into_service_error`. [#420]
+- Add configurable timeout for accepting TLS connection. [#393]
+- Added `TlsError::Timeout` variant. [#393]
+- All TLS acceptor services now use `TlsError` for their error types. [#393]
+- Added `TlsError::into_service_error`. [#420]
 
 [#393]: https://github.com/actix/actix-net/pull/393
 [#420]: https://github.com/actix/actix-net/pull/420
 
 
 ## 3.0.0-beta.8 - 2021-11-15
-* Add `Connect::request` for getting a reference to the connection request. [#415]
+- Add `Connect::request` for getting a reference to the connection request. [#415]
 
 [#415]: https://github.com/actix/actix-net/pull/415
 
 
 ## 3.0.0-beta.7 - 2021-10-20
-* Add `webpki_roots_cert_store()` to get rustls compatible webpki roots cert store. [#401]
-* Alias `connect::ssl` to `connect::tls`. [#401]
+- Add `webpki_roots_cert_store()` to get rustls compatible webpki roots cert store. [#401]
+- Alias `connect::ssl` to `connect::tls`. [#401]
 
 [#401]: https://github.com/actix/actix-net/pull/401
 
 
 ## 3.0.0-beta.6 - 2021-10-19
-* Update `tokio-rustls` to `0.23` which uses `rustls` `0.20`. [#396]
-* Removed a re-export of `Session` from `rustls` as it no longer exist. [#396]
-* Minimum supported Rust version (MSRV) is now 1.52.
+- Update `tokio-rustls` to `0.23` which uses `rustls` `0.20`. [#396]
+- Removed a re-export of `Session` from `rustls` as it no longer exist. [#396]
+- Minimum supported Rust version (MSRV) is now 1.52.
 
 [#396]: https://github.com/actix/actix-net/pull/396
 
 
 ## 3.0.0-beta.5 - 2021-03-29
-* Changed `connect::ssl::rustls::RustlsConnectorService` to return error when `DNSNameRef`
+- Changed `connect::ssl::rustls::RustlsConnectorService` to return error when `DNSNameRef`
   generation failed instead of panic. [#296]
-* Remove `connect::ssl::openssl::OpensslConnectServiceFactory`. [#297]
-* Remove `connect::ssl::openssl::OpensslConnectService`. [#297]
-* Add `connect::ssl::native_tls` module for native tls support. [#295]
-* Rename `accept::{nativetls => native_tls}`. [#295]
-* Remove `connect::TcpConnectService` type. service caller expect a `TcpStream` should use
-  `connect::ConnectService` instead and call `Connection<T, TcpStream>::into_parts`. [#299]
+- Remove `connect::ssl::openssl::OpensslConnectServiceFactory`. [#297]
+- Remove `connect::ssl::openssl::OpensslConnectService`. [#297]
+- Add `connect::ssl::native_tls` module for native tls support. [#295]
+- Rename `accept::{nativetls => native_tls}`. [#295]
+- Remove `connect::TcpConnectService` type. Service caller expecting a `TcpStream` should use `connect::ConnectService` instead and call `Connection<T, TcpStream>::into_parts`. [#299]
 
 [#295]: https://github.com/actix/actix-net/pull/295
 [#296]: https://github.com/actix/actix-net/pull/296
@@ -51,72 +116,72 @@
 
 
 ## 3.0.0-beta.4 - 2021-02-24
-* Rename `accept::openssl::{SslStream => TlsStream}`.
-* Add `connect::Connect::set_local_addr` to attach local `IpAddr`. [#282]
-* `connector::TcpConnector` service will try to bind to local_addr of `IpAddr` when given. [#282]
+- Rename `accept::openssl::{SslStream => TlsStream}`.
+- Add `connect::Connect::set_local_addr` to attach local `IpAddr`. [#282]
+- `connector::TcpConnector` service will try to bind to local_addr of `IpAddr` when given. [#282]
 
 [#282]: https://github.com/actix/actix-net/pull/282
 
 
 ## 3.0.0-beta.3 - 2021-02-06
-* Remove `trust-dns-proto` and `trust-dns-resolver`. [#248]
-* Use `std::net::ToSocketAddrs` as simple and basic default resolver. [#248]
-* Add `Resolve` trait for custom DNS resolvers. [#248]
-* Add `Resolver::new_custom` function to construct custom resolvers. [#248]
-* Export `webpki_roots::TLS_SERVER_ROOTS` in `actix_tls::connect` mod and remove
+- Remove `trust-dns-proto` and `trust-dns-resolver`. [#248]
+- Use `std::net::ToSocketAddrs` as simple and basic default resolver. [#248]
+- Add `Resolve` trait for custom DNS resolvers. [#248]
+- Add `Resolver::new_custom` function to construct custom resolvers. [#248]
+- Export `webpki_roots::TLS_SERVER_ROOTS` in `actix_tls::connect` mod and remove
   the export from `actix_tls::accept` [#248]
-* Remove `ConnectTakeAddrsIter`. `Connect::take_addrs` now returns `ConnectAddrsIter<'static>`
+- Remove `ConnectTakeAddrsIter`. `Connect::take_addrs` now returns `ConnectAddrsIter<'static>`
   as owned iterator. [#248]
-* Rename `Address::{host => hostname}` to more accurately describe which URL segment is returned.
-* Update `actix-rt` to `2.0.0`. [#273]
+- Rename `Address::{host => hostname}` to more accurately describe which URL segment is returned.
+- Update `actix-rt` to `2.0.0`. [#273]
 
 [#248]: https://github.com/actix/actix-net/pull/248
 [#273]: https://github.com/actix/actix-net/pull/273
 
 
-## 3.0.0-beta.2 - 2021-xx-xx
-* Depend on stable trust-dns packages. [#204]
+## 3.0.0-beta.2 - 2022-xx-xx
+- Depend on stable trust-dns packages. [#204]
 
 [#204]: https://github.com/actix/actix-net/pull/204
 
 
 ## 3.0.0-beta.1 - 2020-12-29
-* Move acceptors under `accept` module. [#238]
-* Merge `actix-connect` crate under `connect` module. [#238]
-* Add feature flags to enable acceptors and/or connectors individually. [#238]
+- Move acceptors under `accept` module. [#238]
+- Merge `actix-connect` crate under `connect` module. [#238]
+- Add feature flags to enable acceptors and/or connectors individually. [#238]
 
 [#238]: https://github.com/actix/actix-net/pull/238
 
 
 ## 2.0.0 - 2020-09-03
-* `nativetls::NativeTlsAcceptor` is renamed to `nativetls::Acceptor`.
-* Where possible, "SSL" terminology is replaced with "TLS".
+- `nativetls::NativeTlsAcceptor` is renamed to `nativetls::Acceptor`.
+- Where possible, "SSL" terminology is replaced with "TLS".
     * `SslError` is renamed to `TlsError`.
     * `TlsError::Ssl` enum variant is renamed to `TlsError::Tls`.
     * `max_concurrent_ssl_connect` is renamed to `max_concurrent_tls_connect`.
 
 
 ## 2.0.0-alpha.2 - 2020-08-17
-* Update `rustls` dependency to 0.18
-* Update `tokio-rustls` dependency to 0.14
-* Update `webpki-roots` dependency to 0.20
+- Update `rustls` dependency to 0.18
+- Update `tokio-rustls` dependency to 0.14
+- Update `webpki-roots` dependency to 0.20
 
 
 ## [2.0.0-alpha.1] - 2020-03-03
-* Update `rustls` dependency to 0.17
-* Update `tokio-rustls` dependency to 0.13
-* Update `webpki-roots` dependency to 0.19
+- Update `rustls` dependency to 0.17
+- Update `tokio-rustls` dependency to 0.13
+- Update `webpki-roots` dependency to 0.19
 
 
 ## [1.0.0] - 2019-12-11
-* 1.0.0 release
+- 1.0.0 release
 
 
 ## [1.0.0-alpha.3] - 2019-12-07
-* Migrate to tokio 0.2
-* Enable rustls acceptor service
-* Enable native-tls acceptor service
+- Migrate to tokio 0.2
+- Enable rustls acceptor service
+- Enable native-tls acceptor service
 
 
 ## [1.0.0-alpha.1] - 2019-12-02
-* Split openssl acceptor from actix-server package
+- Split openssl acceptor from actix-server package

actix-tls/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-tls"
-version = "3.0.0-beta.9"
+version = "3.0.4"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -8,19 +8,20 @@ authors = [
 description = "TLS acceptor and connector services for Actix ecosystem"
 keywords = ["network", "tls", "ssl", "async", "transport"]
 repository = "https://github.com/actix/actix-net.git"
-categories = ["network-programming", "asynchronous"]
+categories = ["network-programming", "asynchronous", "cryptography"]
 license = "MIT OR Apache-2.0"
 edition = "2018"
 
 [package.metadata.docs.rs]
-features = ["openssl", "rustls", "native-tls", "accept", "connect", "uri"]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
 
 [lib]
 name = "actix_tls"
 path = "src/lib.rs"
 
 [features]
-default = ["accept", "connect", "uri"]
+default = ["accept", "connect"]
 
 # enable acceptor services
 accept = []
@@ -29,29 +30,31 @@ accept = []
 connect = []
 
 # use openssl impls
-openssl = ["tls-openssl", "tokio-openssl"]
+openssl = ["tls-openssl", "tokio-openssl", "actix-codec"]
 
 # use rustls impls
-rustls = ["tokio-rustls", "webpki-roots"]
+rustls = ["tokio-rustls", "webpki-roots", "actix-codec"]
 
 # use native-tls impls
-native-tls = ["tokio-native-tls"]
+native-tls = ["tokio-native-tls", "actix-codec"]
 
 # support http::Uri as connect address
 uri = ["http"]
 
 [dependencies]
-actix-codec = "0.4.0"
+actix-codec = { version = "0.5.0", optional = true }
 actix-rt = { version = "2.2.0", default-features = false }
-actix-service = "2.0.0"
-actix-utils = "3.0.0"
+actix-service = "2"
+actix-utils = "3"
 
-derive_more = "0.99.5"
 futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
-http = { version = "0.2.3", optional = true }
-log = "0.4"
+impl-more = "0.1"
 pin-project-lite = "0.2.7"
-tokio-util = { version = "0.6.3", default-features = false }
+tokio-util = "0.7"
+tracing = { version = "0.1.30", default-features = false, features = ["log"] }
+
+# uri
+http = { version = "0.2.3", optional = true }
 
 # openssl
 tls-openssl = { package = "openssl", version = "0.10.9", optional = true }
@@ -65,8 +68,9 @@ webpki-roots = { version = "0.22", optional = true }
 tokio-native-tls = { version = "0.3", optional = true }
 
 [dev-dependencies]
+actix-codec = "0.5.0"
 actix-rt = "2.2.0"
-actix-server = "2.0.0-beta.9"
+actix-server = "2"
 bytes = "1"
 env_logger = "0.9"
 futures-util = { version = "0.3.7", default-features = false, features = ["sink"] }
@@ -74,8 +78,8 @@ log = "0.4"
 rcgen = "0.8"
 rustls-pemfile = "0.2.1"
 tokio-rustls = { version = "0.23", features = ["dangerous_configuration"] }
-trust-dns-resolver = "0.20.0"
+trust-dns-resolver = "0.20"
 
 [[example]]
-name = "tcp-rustls"
+name = "accept-rustls"
 required-features = ["accept", "rustls"]

actix-tls/examples/accept-rustls.rs

@@ -1,4 +1,4 @@
-//! TLS Acceptor Server
+//! No-Op TLS Acceptor Server
 //!
 //! Using either HTTPie (`http`) or cURL:
 //!
@@ -15,8 +15,9 @@
 //! http --verify=false https://127.0.0.1:8443
 //! ```
 
-// this use only exists because of how we have organised the crate
-// it is not necessary for your actual code
+#[rustfmt::skip]
+// this `use` is only exists because of how we have organised the crate
+// it is not necessary for your actual code; you should import from `rustls` directly
 use tokio_rustls::rustls;
 
 use std::{
@@ -34,9 +35,9 @@ use actix_server::Server;
 use actix_service::ServiceFactoryExt as _;
 use actix_tls::accept::rustls::{Acceptor as RustlsAcceptor, TlsStream};
 use futures_util::future::ok;
-use log::info;
 use rustls::{server::ServerConfig, Certificate, PrivateKey};
 use rustls_pemfile::{certs, rsa_private_keys};
+use tracing::info;
 
 #[actix_rt::main]
 async fn main() -> io::Result<()> {

actix-tls/src/accept/mod.rs

@@ -1,19 +1,24 @@
-//! TLS acceptor services.
+//! TLS connection acceptor services.
 
 use std::{
     convert::Infallible,
+    error::Error,
+    fmt,
     sync::atomic::{AtomicUsize, Ordering},
 };
 
 use actix_utils::counter::Counter;
 
 #[cfg(feature = "openssl")]
+#[cfg_attr(docsrs, doc(cfg(feature = "openssl")))]
 pub mod openssl;
 
 #[cfg(feature = "rustls")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rustls")))]
 pub mod rustls;
 
 #[cfg(feature = "native-tls")]
+#[cfg_attr(docsrs, doc(cfg(feature = "native-tls")))]
 pub mod native_tls;
 
 pub(crate) static MAX_CONN: AtomicUsize = AtomicUsize::new(256);
@@ -36,21 +41,63 @@ pub fn max_concurrent_tls_connect(num: usize) {
     MAX_CONN.store(num, Ordering::Relaxed);
 }
 
-/// TLS error combined with service error.
+/// TLS handshake error, TLS timeout, or inner service error.
+///
+/// All TLS acceptors from this crate will return the `SvcErr` type parameter as [`Infallible`],
+/// which can be cast to your own service type, inferred or otherwise, using [`into_service_error`].
+///
+/// [`into_service_error`]: Self::into_service_error
 #[derive(Debug)]
 pub enum TlsError<TlsErr, SvcErr> {
+    /// TLS handshake has timed-out.
     Timeout,
+
+    /// Wraps TLS service errors.
     Tls(TlsErr),
+
+    /// Wraps service errors.
     Service(SvcErr),
 }
 
+impl<TlsErr, SvcErr> fmt::Display for TlsError<TlsErr, SvcErr> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Timeout => f.write_str("TLS handshake has timed-out"),
+            Self::Tls(_) => f.write_str("TLS handshake error"),
+            Self::Service(_) => f.write_str("Service error"),
+        }
+    }
+}
+
+impl<TlsErr, SvcErr> Error for TlsError<TlsErr, SvcErr>
+where
+    TlsErr: Error + 'static,
+    SvcErr: Error + 'static,
+{
+    fn source(&self) -> Option<&(dyn Error + 'static)> {
+        match self {
+            TlsError::Tls(err) => Some(err),
+            TlsError::Service(err) => Some(err),
+            TlsError::Timeout => None,
+        }
+    }
+}
+
 impl<TlsErr> TlsError<TlsErr, Infallible> {
     /// Casts the infallible service error type returned from acceptors into caller's type.
+    ///
+    /// # Examples
+    /// ```
+    /// # use std::convert::Infallible;
+    /// # use actix_tls::accept::TlsError;
+    /// let a: TlsError<u32, Infallible> = TlsError::Tls(42);
+    /// let _b: TlsError<u32, u64> = a.into_service_error();
+    /// ```
     pub fn into_service_error<SvcErr>(self) -> TlsError<TlsErr, SvcErr> {
         match self {
             Self::Timeout => TlsError::Timeout,
             Self::Tls(err) => TlsError::Tls(err),
-            Self::Service(_) => unreachable!(),
+            Self::Service(err) => match err {},
         }
     }
 }

actix-tls/src/accept/native_tls.rs

@@ -1,7 +1,10 @@
+//! `native-tls` based TLS connection acceptor service.
+//!
+//! See [`Acceptor`] for main service factory docs.
+
 use std::{
     convert::Infallible,
     io::{self, IoSlice},
-    ops::{Deref, DerefMut},
     pin::Pin,
     task::{Context, Poll},
     time::Duration,
@@ -13,37 +16,28 @@ use actix_rt::{
     time::timeout,
 };
 use actix_service::{Service, ServiceFactory};
-use actix_utils::counter::Counter;
+use actix_utils::{
+    counter::Counter,
+    future::{ready, Ready as FutReady},
+};
 use futures_core::future::LocalBoxFuture;
-
-pub use tokio_native_tls::{native_tls::Error, TlsAcceptor};
+use tokio_native_tls::{native_tls::Error, TlsAcceptor};
 
 use super::{TlsError, DEFAULT_TLS_HANDSHAKE_TIMEOUT, MAX_CONN_COUNTER};
 
-/// Wrapper type for `tokio_native_tls::TlsStream` in order to impl `ActixStream` trait.
-pub struct TlsStream<T>(tokio_native_tls::TlsStream<T>);
+pub mod reexports {
+    //! Re-exports from `native-tls` that are useful for acceptors.
 
-impl<T> From<tokio_native_tls::TlsStream<T>> for TlsStream<T> {
-    fn from(stream: tokio_native_tls::TlsStream<T>) -> Self {
-        Self(stream)
-    }
+    pub use tokio_native_tls::{native_tls::Error, TlsAcceptor};
 }
 
-impl<T: ActixStream> Deref for TlsStream<T> {
-    type Target = tokio_native_tls::TlsStream<T>;
+/// Wraps a `native-tls` based async TLS stream in order to implement [`ActixStream`].
+pub struct TlsStream<IO>(tokio_native_tls::TlsStream<IO>);
 
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
+impl_more::impl_from!(<IO> in tokio_native_tls::TlsStream<IO> => TlsStream<IO>);
+impl_more::impl_deref_and_mut!(<IO> in TlsStream<IO> => tokio_native_tls::TlsStream<IO>);
 
-impl<T: ActixStream> DerefMut for TlsStream<T> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
-
-impl<T: ActixStream> AsyncRead for TlsStream<T> {
+impl<IO: ActixStream> AsyncRead for TlsStream<IO> {
     fn poll_read(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
@@ -53,7 +47,7 @@ impl<T: ActixStream> AsyncRead for TlsStream<T> {
     }
 }
 
-impl<T: ActixStream> AsyncWrite for TlsStream<T> {
+impl<IO: ActixStream> AsyncWrite for TlsStream<IO> {
     fn poll_write(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
@@ -83,27 +77,24 @@ impl<T: ActixStream> AsyncWrite for TlsStream<T> {
     }
 }
 
-impl<T: ActixStream> ActixStream for TlsStream<T> {
+impl<IO: ActixStream> ActixStream for TlsStream<IO> {
     fn poll_read_ready(&self, cx: &mut Context<'_>) -> Poll<io::Result<Ready>> {
-        T::poll_read_ready((&**self).get_ref().get_ref().get_ref(), cx)
+        IO::poll_read_ready((&**self).get_ref().get_ref().get_ref(), cx)
     }
 
     fn poll_write_ready(&self, cx: &mut Context<'_>) -> Poll<io::Result<Ready>> {
-        T::poll_write_ready((&**self).get_ref().get_ref().get_ref(), cx)
+        IO::poll_write_ready((&**self).get_ref().get_ref().get_ref(), cx)
     }
 }
 
-/// Accept TLS connections via `native-tls` package.
-///
-/// `native-tls` feature enables this `Acceptor` type.
+/// Accept TLS connections via the `native-tls` crate.
 pub struct Acceptor {
     acceptor: TlsAcceptor,
     handshake_timeout: Duration,
 }
 
 impl Acceptor {
-    /// Create `native-tls` based `Acceptor` service factory.
-    #[inline]
+    /// Constructs `native-tls` based acceptor service factory.
     pub fn new(acceptor: TlsAcceptor) -> Self {
         Acceptor {
             acceptor,
@@ -130,35 +121,36 @@ impl Clone for Acceptor {
     }
 }
 
-impl<T: ActixStream + 'static> ServiceFactory<T> for Acceptor {
-    type Response = TlsStream<T>;
+impl<IO: ActixStream + 'static> ServiceFactory<IO> for Acceptor {
+    type Response = TlsStream<IO>;
     type Error = TlsError<Error, Infallible>;
     type Config = ();
-    type Service = NativeTlsAcceptorService;
+    type Service = AcceptorService;
     type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
+    type Future = FutReady<Result<Self::Service, Self::InitError>>;
 
     fn new_service(&self, _: ()) -> Self::Future {
         let res = MAX_CONN_COUNTER.with(|conns| {
-            Ok(NativeTlsAcceptorService {
+            Ok(AcceptorService {
                 acceptor: self.acceptor.clone(),
                 conns: conns.clone(),
                 handshake_timeout: self.handshake_timeout,
             })
         });
 
-        Box::pin(async { res })
+        ready(res)
     }
 }
 
-pub struct NativeTlsAcceptorService {
+/// Native-TLS based acceptor service.
+pub struct AcceptorService {
     acceptor: TlsAcceptor,
     conns: Counter,
     handshake_timeout: Duration,
 }
 
-impl<T: ActixStream + 'static> Service<T> for NativeTlsAcceptorService {
-    type Response = TlsStream<T>;
+impl<IO: ActixStream + 'static> Service<IO> for AcceptorService {
+    type Response = TlsStream<IO>;
     type Error = TlsError<Error, Infallible>;
     type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
 
@@ -170,7 +162,7 @@ impl<T: ActixStream + 'static> Service<T> for NativeTlsAcceptorService {
         }
     }
 
-    fn call(&self, io: T) -> Self::Future {
+    fn call(&self, io: IO) -> Self::Future {
         let guard = self.conns.get();
         let acceptor = self.acceptor.clone();
 

actix-tls/src/accept/openssl.rs

@@ -1,8 +1,11 @@
+//! `openssl` based TLS acceptor service.
+//!
+//! See [`Acceptor`] for main service factory docs.
+
 use std::{
     convert::Infallible,
     future::Future,
     io::{self, IoSlice},
-    ops::{Deref, DerefMut},
     pin::Pin,
     task::{Context, Poll},
     time::Duration,
@@ -14,40 +17,30 @@ use actix_rt::{
     time::{sleep, Sleep},
 };
 use actix_service::{Service, ServiceFactory};
-use actix_utils::counter::{Counter, CounterGuard};
-use futures_core::future::LocalBoxFuture;
-
-pub use openssl::ssl::{
-    AlpnError, Error as SslError, HandshakeError, Ssl, SslAcceptor, SslAcceptorBuilder,
+use actix_utils::{
+    counter::{Counter, CounterGuard},
+    future::{ready, Ready as FutReady},
 };
+use openssl::ssl::{Error, Ssl, SslAcceptor};
 use pin_project_lite::pin_project;
 
 use super::{TlsError, DEFAULT_TLS_HANDSHAKE_TIMEOUT, MAX_CONN_COUNTER};
 
-/// Wrapper type for `tokio_openssl::SslStream` in order to impl `ActixStream` trait.
-pub struct TlsStream<T>(tokio_openssl::SslStream<T>);
+pub mod reexports {
+    //! Re-exports from `openssl` that are useful for acceptors.
 
-impl<T> From<tokio_openssl::SslStream<T>> for TlsStream<T> {
-    fn from(stream: tokio_openssl::SslStream<T>) -> Self {
-        Self(stream)
-    }
+    pub use openssl::ssl::{
+        AlpnError, Error, HandshakeError, Ssl, SslAcceptor, SslAcceptorBuilder,
+    };
 }
 
-impl<T> Deref for TlsStream<T> {
-    type Target = tokio_openssl::SslStream<T>;
+/// Wraps an `openssl` based async TLS stream in order to implement [`ActixStream`].
+pub struct TlsStream<IO>(tokio_openssl::SslStream<IO>);
 
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
+impl_more::impl_from!(<IO> in tokio_openssl::SslStream<IO> => TlsStream<IO>);
+impl_more::impl_deref_and_mut!(<IO> in TlsStream<IO> => tokio_openssl::SslStream<IO>);
 
-impl<T> DerefMut for TlsStream<T> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
-
-impl<T: ActixStream> AsyncRead for TlsStream<T> {
+impl<IO: ActixStream> AsyncRead for TlsStream<IO> {
     fn poll_read(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
@@ -57,7 +50,7 @@ impl<T: ActixStream> AsyncRead for TlsStream<T> {
     }
 }
 
-impl<T: ActixStream> AsyncWrite for TlsStream<T> {
+impl<IO: ActixStream> AsyncWrite for TlsStream<IO> {
     fn poll_write(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
@@ -87,26 +80,24 @@ impl<T: ActixStream> AsyncWrite for TlsStream<T> {
     }
 }
 
-impl<T: ActixStream> ActixStream for TlsStream<T> {
+impl<IO: ActixStream> ActixStream for TlsStream<IO> {
     fn poll_read_ready(&self, cx: &mut Context<'_>) -> Poll<io::Result<Ready>> {
-        T::poll_read_ready((&**self).get_ref(), cx)
+        IO::poll_read_ready((&**self).get_ref(), cx)
     }
 
     fn poll_write_ready(&self, cx: &mut Context<'_>) -> Poll<io::Result<Ready>> {
-        T::poll_write_ready((&**self).get_ref(), cx)
+        IO::poll_write_ready((&**self).get_ref(), cx)
     }
 }
 
-/// Accept TLS connections via `openssl` package.
-///
-/// `openssl` feature enables this `Acceptor` type.
+/// Accept TLS connections via the `openssl` crate.
 pub struct Acceptor {
     acceptor: SslAcceptor,
     handshake_timeout: Duration,
 }
 
 impl Acceptor {
-    /// Create OpenSSL based `Acceptor` service factory.
+    /// Create `openssl` based acceptor service factory.
     #[inline]
     pub fn new(acceptor: SslAcceptor) -> Self {
         Acceptor {
@@ -134,13 +125,13 @@ impl Clone for Acceptor {
     }
 }
 
-impl<T: ActixStream> ServiceFactory<T> for Acceptor {
-    type Response = TlsStream<T>;
-    type Error = TlsError<SslError, Infallible>;
+impl<IO: ActixStream> ServiceFactory<IO> for Acceptor {
+    type Response = TlsStream<IO>;
+    type Error = TlsError<Error, Infallible>;
     type Config = ();
     type Service = AcceptorService;
     type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
+    type Future = FutReady<Result<Self::Service, Self::InitError>>;
 
     fn new_service(&self, _: ()) -> Self::Future {
         let res = MAX_CONN_COUNTER.with(|conns| {
@@ -151,20 +142,21 @@ impl<T: ActixStream> ServiceFactory<T> for Acceptor {
             })
         });
 
-        Box::pin(async { res })
+        ready(res)
     }
 }
 
+/// OpenSSL based acceptor service.
 pub struct AcceptorService {
     acceptor: SslAcceptor,
     conns: Counter,
     handshake_timeout: Duration,
 }
 
-impl<T: ActixStream> Service<T> for AcceptorService {
-    type Response = TlsStream<T>;
-    type Error = TlsError<SslError, Infallible>;
-    type Future = AcceptorServiceResponse<T>;
+impl<IO: ActixStream> Service<IO> for AcceptorService {
+    type Response = TlsStream<IO>;
+    type Error = TlsError<Error, Infallible>;
+    type Future = AcceptFut<IO>;
 
     fn poll_ready(&self, ctx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
         if self.conns.available(ctx) {
@@ -174,11 +166,11 @@ impl<T: ActixStream> Service<T> for AcceptorService {
         }
     }
 
-    fn call(&self, io: T) -> Self::Future {
+    fn call(&self, io: IO) -> Self::Future {
         let ssl_ctx = self.acceptor.context();
         let ssl = Ssl::new(ssl_ctx).expect("Provided SSL acceptor was invalid.");
 
-        AcceptorServiceResponse {
+        AcceptFut {
             _guard: self.conns.get(),
             timeout: sleep(self.handshake_timeout),
             stream: Some(tokio_openssl::SslStream::new(ssl, io).unwrap()),
@@ -187,16 +179,18 @@ impl<T: ActixStream> Service<T> for AcceptorService {
 }
 
 pin_project! {
-    pub struct AcceptorServiceResponse<T: ActixStream> {
-        stream: Option<tokio_openssl::SslStream<T>>,
+    /// Accept future for OpenSSL service.
+    #[doc(hidden)]
+    pub struct AcceptFut<IO: ActixStream> {
+        stream: Option<tokio_openssl::SslStream<IO>>,
         #[pin]
         timeout: Sleep,
         _guard: CounterGuard,
     }
 }
 
-impl<T: ActixStream> Future for AcceptorServiceResponse<T> {
-    type Output = Result<TlsStream<T>, TlsError<SslError, Infallible>>;
+impl<IO: ActixStream> Future for AcceptFut<IO> {
+    type Output = Result<TlsStream<IO>, TlsError<Error, Infallible>>;
 
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         let this = self.project();

actix-tls/src/accept/rustls.rs

@@ -1,8 +1,11 @@
+//! `rustls` based TLS connection acceptor service.
+//!
+//! See [`Acceptor`] for main service factory docs.
+
 use std::{
     convert::Infallible,
     future::Future,
     io::{self, IoSlice},
-    ops::{Deref, DerefMut},
     pin::Pin,
     sync::Arc,
     task::{Context, Poll},
@@ -15,39 +18,29 @@ use actix_rt::{
     time::{sleep, Sleep},
 };
 use actix_service::{Service, ServiceFactory};
-use actix_utils::counter::{Counter, CounterGuard};
-use futures_core::future::LocalBoxFuture;
+use actix_utils::{
+    counter::{Counter, CounterGuard},
+    future::{ready, Ready as FutReady},
+};
 use pin_project_lite::pin_project;
+use tokio_rustls::rustls::ServerConfig;
 use tokio_rustls::{Accept, TlsAcceptor};
 
-pub use tokio_rustls::rustls::ServerConfig;
-
 use super::{TlsError, DEFAULT_TLS_HANDSHAKE_TIMEOUT, MAX_CONN_COUNTER};
 
-/// Wrapper type for `tokio_openssl::SslStream` in order to impl `ActixStream` trait.
-pub struct TlsStream<T>(tokio_rustls::server::TlsStream<T>);
+pub mod reexports {
+    //! Re-exports from `rustls` that are useful for acceptors.
 
-impl<T> From<tokio_rustls::server::TlsStream<T>> for TlsStream<T> {
-    fn from(stream: tokio_rustls::server::TlsStream<T>) -> Self {
-        Self(stream)
-    }
+    pub use tokio_rustls::rustls::ServerConfig;
 }
 
-impl<T> Deref for TlsStream<T> {
-    type Target = tokio_rustls::server::TlsStream<T>;
+/// Wraps a `rustls` based async TLS stream in order to implement [`ActixStream`].
+pub struct TlsStream<IO>(tokio_rustls::server::TlsStream<IO>);
 
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
+impl_more::impl_from!(<IO> in tokio_rustls::server::TlsStream<IO> => TlsStream<IO>);
+impl_more::impl_deref_and_mut!(<IO> in TlsStream<IO> => tokio_rustls::server::TlsStream<IO>);
 
-impl<T> DerefMut for TlsStream<T> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.0
-    }
-}
-
-impl<T: ActixStream> AsyncRead for TlsStream<T> {
+impl<IO: ActixStream> AsyncRead for TlsStream<IO> {
     fn poll_read(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
@@ -57,7 +50,7 @@ impl<T: ActixStream> AsyncRead for TlsStream<T> {
     }
 }
 
-impl<T: ActixStream> AsyncWrite for TlsStream<T> {
+impl<IO: ActixStream> AsyncWrite for TlsStream<IO> {
     fn poll_write(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
@@ -87,27 +80,24 @@ impl<T: ActixStream> AsyncWrite for TlsStream<T> {
     }
 }
 
-impl<T: ActixStream> ActixStream for TlsStream<T> {
+impl<IO: ActixStream> ActixStream for TlsStream<IO> {
     fn poll_read_ready(&self, cx: &mut Context<'_>) -> Poll<io::Result<Ready>> {
-        T::poll_read_ready((&**self).get_ref().0, cx)
+        IO::poll_read_ready((&**self).get_ref().0, cx)
     }
 
     fn poll_write_ready(&self, cx: &mut Context<'_>) -> Poll<io::Result<Ready>> {
-        T::poll_write_ready((&**self).get_ref().0, cx)
+        IO::poll_write_ready((&**self).get_ref().0, cx)
     }
 }
 
-/// Accept TLS connections via `rustls` package.
-///
-/// `rustls` feature enables this `Acceptor` type.
+/// Accept TLS connections via the `rustls` crate.
 pub struct Acceptor {
     config: Arc<ServerConfig>,
     handshake_timeout: Duration,
 }
 
 impl Acceptor {
-    /// Create Rustls based `Acceptor` service factory.
-    #[inline]
+    /// Constructs `rustls` based acceptor service factory.
     pub fn new(config: ServerConfig) -> Self {
         Acceptor {
             config: Arc::new(config),
@@ -125,7 +115,6 @@ impl Acceptor {
 }
 
 impl Clone for Acceptor {
-    #[inline]
     fn clone(&self) -> Self {
         Self {
             config: self.config.clone(),
@@ -134,13 +123,13 @@ impl Clone for Acceptor {
     }
 }
 
-impl<T: ActixStream> ServiceFactory<T> for Acceptor {
-    type Response = TlsStream<T>;
+impl<IO: ActixStream> ServiceFactory<IO> for Acceptor {
+    type Response = TlsStream<IO>;
     type Error = TlsError<io::Error, Infallible>;
     type Config = ();
     type Service = AcceptorService;
     type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
+    type Future = FutReady<Result<Self::Service, Self::InitError>>;
 
     fn new_service(&self, _: ()) -> Self::Future {
         let res = MAX_CONN_COUNTER.with(|conns| {
@@ -151,21 +140,21 @@ impl<T: ActixStream> ServiceFactory<T> for Acceptor {
             })
         });
 
-        Box::pin(async { res })
+        ready(res)
     }
 }
 
-/// Rustls based `Acceptor` service
+/// Rustls based acceptor service.
 pub struct AcceptorService {
     acceptor: TlsAcceptor,
     conns: Counter,
     handshake_timeout: Duration,
 }
 
-impl<T: ActixStream> Service<T> for AcceptorService {
-    type Response = TlsStream<T>;
+impl<IO: ActixStream> Service<IO> for AcceptorService {
+    type Response = TlsStream<IO>;
     type Error = TlsError<io::Error, Infallible>;
-    type Future = AcceptorServiceFut<T>;
+    type Future = AcceptFut<IO>;
 
     fn poll_ready(&self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
         if self.conns.available(cx) {
@@ -175,8 +164,8 @@ impl<T: ActixStream> Service<T> for AcceptorService {
         }
     }
 
-    fn call(&self, req: T) -> Self::Future {
-        AcceptorServiceFut {
+    fn call(&self, req: IO) -> Self::Future {
+        AcceptFut {
             fut: self.acceptor.accept(req),
             timeout: sleep(self.handshake_timeout),
             _guard: self.conns.get(),
@@ -185,16 +174,18 @@ impl<T: ActixStream> Service<T> for AcceptorService {
 }
 
 pin_project! {
-    pub struct AcceptorServiceFut<T: ActixStream> {
-        fut: Accept<T>,
+    /// Accept future for Rustls service.
+    #[doc(hidden)]
+    pub struct AcceptFut<IO: ActixStream> {
+        fut: Accept<IO>,
         #[pin]
         timeout: Sleep,
         _guard: CounterGuard,
     }
 }
 
-impl<T: ActixStream> Future for AcceptorServiceFut<T> {
-    type Output = Result<TlsStream<T>, TlsError<io::Error, Infallible>>;
+impl<IO: ActixStream> Future for AcceptFut<IO> {
+    type Output = Result<TlsStream<IO>, TlsError<io::Error, Infallible>>;
 
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         let mut this = self.project();

actix-tls/src/connect/connect.rs

@@ -1,361 +0,0 @@
-use std::{
-    collections::{vec_deque, VecDeque},
-    fmt,
-    iter::{self, FromIterator as _},
-    mem,
-    net::{IpAddr, SocketAddr},
-};
-
-/// Parse a host into parts (hostname and port).
-pub trait Address: Unpin + 'static {
-    /// Get hostname part.
-    fn hostname(&self) -> &str;
-
-    /// Get optional port part.
-    fn port(&self) -> Option<u16> {
-        None
-    }
-}
-
-impl Address for String {
-    fn hostname(&self) -> &str {
-        self
-    }
-}
-
-impl Address for &'static str {
-    fn hostname(&self) -> &str {
-        self
-    }
-}
-
-#[derive(Debug, Eq, PartialEq, Hash)]
-pub(crate) enum ConnectAddrs {
-    None,
-    One(SocketAddr),
-    Multi(VecDeque<SocketAddr>),
-}
-
-impl ConnectAddrs {
-    pub(crate) fn is_none(&self) -> bool {
-        matches!(self, Self::None)
-    }
-
-    pub(crate) fn is_some(&self) -> bool {
-        !self.is_none()
-    }
-}
-
-impl Default for ConnectAddrs {
-    fn default() -> Self {
-        Self::None
-    }
-}
-
-impl From<Option<SocketAddr>> for ConnectAddrs {
-    fn from(addr: Option<SocketAddr>) -> Self {
-        match addr {
-            Some(addr) => ConnectAddrs::One(addr),
-            None => ConnectAddrs::None,
-        }
-    }
-}
-
-/// Connection info.
-#[derive(Debug, PartialEq, Eq, Hash)]
-pub struct Connect<R> {
-    pub(crate) req: R,
-    pub(crate) port: u16,
-    pub(crate) addr: ConnectAddrs,
-    pub(crate) local_addr: Option<IpAddr>,
-}
-
-impl<R: Address> Connect<R> {
-    /// Create `Connect` instance by splitting the string by ':' and convert the second part to u16
-    pub fn new(req: R) -> Connect<R> {
-        let (_, port) = parse_host(req.hostname());
-
-        Connect {
-            req,
-            port: port.unwrap_or(0),
-            addr: ConnectAddrs::None,
-            local_addr: None,
-        }
-    }
-
-    /// Create new `Connect` instance from host and address. Connector skips name resolution stage
-    /// for such connect messages.
-    pub fn with_addr(req: R, addr: SocketAddr) -> Connect<R> {
-        Connect {
-            req,
-            port: 0,
-            addr: ConnectAddrs::One(addr),
-            local_addr: None,
-        }
-    }
-
-    /// Use port if address does not provide one.
-    ///
-    /// Default value is 0.
-    pub fn set_port(mut self, port: u16) -> Self {
-        self.port = port;
-        self
-    }
-
-    /// Set address.
-    pub fn set_addr(mut self, addr: Option<SocketAddr>) -> Self {
-        self.addr = ConnectAddrs::from(addr);
-        self
-    }
-
-    /// Set list of addresses.
-    pub fn set_addrs<I>(mut self, addrs: I) -> Self
-    where
-        I: IntoIterator<Item = SocketAddr>,
-    {
-        let mut addrs = VecDeque::from_iter(addrs);
-        self.addr = if addrs.len() < 2 {
-            ConnectAddrs::from(addrs.pop_front())
-        } else {
-            ConnectAddrs::Multi(addrs)
-        };
-        self
-    }
-
-    /// Set local_addr of connect.
-    pub fn set_local_addr(mut self, addr: impl Into<IpAddr>) -> Self {
-        self.local_addr = Some(addr.into());
-        self
-    }
-
-    /// Get hostname.
-    pub fn hostname(&self) -> &str {
-        self.req.hostname()
-    }
-
-    /// Get request port.
-    pub fn port(&self) -> u16 {
-        self.req.port().unwrap_or(self.port)
-    }
-
-    /// Get resolved request addresses.
-    pub fn addrs(&self) -> ConnectAddrsIter<'_> {
-        match self.addr {
-            ConnectAddrs::None => ConnectAddrsIter::None,
-            ConnectAddrs::One(addr) => ConnectAddrsIter::One(addr),
-            ConnectAddrs::Multi(ref addrs) => ConnectAddrsIter::Multi(addrs.iter()),
-        }
-    }
-
-    /// Take resolved request addresses.
-    pub fn take_addrs(&mut self) -> ConnectAddrsIter<'static> {
-        match mem::take(&mut self.addr) {
-            ConnectAddrs::None => ConnectAddrsIter::None,
-            ConnectAddrs::One(addr) => ConnectAddrsIter::One(addr),
-            ConnectAddrs::Multi(addrs) => ConnectAddrsIter::MultiOwned(addrs.into_iter()),
-        }
-    }
-
-    /// Returns a reference to the connection request.
-    pub fn request(&self) -> &R {
-        &self.req
-    }
-}
-
-impl<R: Address> From<R> for Connect<R> {
-    fn from(addr: R) -> Self {
-        Connect::new(addr)
-    }
-}
-
-impl<R: Address> fmt::Display for Connect<R> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{}:{}", self.hostname(), self.port())
-    }
-}
-
-/// Iterator over addresses in a [`Connect`] request.
-#[derive(Clone)]
-pub enum ConnectAddrsIter<'a> {
-    None,
-    One(SocketAddr),
-    Multi(vec_deque::Iter<'a, SocketAddr>),
-    MultiOwned(vec_deque::IntoIter<SocketAddr>),
-}
-
-impl Iterator for ConnectAddrsIter<'_> {
-    type Item = SocketAddr;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        match *self {
-            Self::None => None,
-            Self::One(addr) => {
-                *self = Self::None;
-                Some(addr)
-            }
-            Self::Multi(ref mut iter) => iter.next().copied(),
-            Self::MultiOwned(ref mut iter) => iter.next(),
-        }
-    }
-
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        match *self {
-            Self::None => (0, Some(0)),
-            Self::One(_) => (1, Some(1)),
-            Self::Multi(ref iter) => iter.size_hint(),
-            Self::MultiOwned(ref iter) => iter.size_hint(),
-        }
-    }
-}
-
-impl fmt::Debug for ConnectAddrsIter<'_> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_list().entries(self.clone()).finish()
-    }
-}
-
-impl iter::ExactSizeIterator for ConnectAddrsIter<'_> {}
-
-impl iter::FusedIterator for ConnectAddrsIter<'_> {}
-
-pub struct Connection<T, U> {
-    io: U,
-    req: T,
-}
-
-impl<T, U> Connection<T, U> {
-    pub fn new(io: U, req: T) -> Self {
-        Self { io, req }
-    }
-}
-
-impl<T, U> Connection<T, U> {
-    /// Reconstruct from a parts.
-    pub fn from_parts(io: U, req: T) -> Self {
-        Self { io, req }
-    }
-
-    /// Deconstruct into a parts.
-    pub fn into_parts(self) -> (U, T) {
-        (self.io, self.req)
-    }
-
-    /// Replace inclosed object, return new Stream and old object
-    pub fn replace_io<Y>(self, io: Y) -> (U, Connection<T, Y>) {
-        (self.io, Connection { io, req: self.req })
-    }
-
-    /// Returns a shared reference to the underlying stream.
-    pub fn io_ref(&self) -> &U {
-        &self.io
-    }
-
-    /// Returns a mutable reference to the underlying stream.
-    pub fn io_mut(&mut self) -> &mut U {
-        &mut self.io
-    }
-}
-
-impl<T: Address, U> Connection<T, U> {
-    /// Get hostname.
-    pub fn host(&self) -> &str {
-        self.req.hostname()
-    }
-}
-
-impl<T, U> std::ops::Deref for Connection<T, U> {
-    type Target = U;
-
-    fn deref(&self) -> &U {
-        &self.io
-    }
-}
-
-impl<T, U> std::ops::DerefMut for Connection<T, U> {
-    fn deref_mut(&mut self) -> &mut U {
-        &mut self.io
-    }
-}
-
-impl<T, U: fmt::Debug> fmt::Debug for Connection<T, U> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "Stream {{{:?}}}", self.io)
-    }
-}
-
-fn parse_host(host: &str) -> (&str, Option<u16>) {
-    let mut parts_iter = host.splitn(2, ':');
-
-    match parts_iter.next() {
-        Some(hostname) => {
-            let port_str = parts_iter.next().unwrap_or("");
-            let port = port_str.parse::<u16>().ok();
-            (hostname, port)
-        }
-
-        None => (host, None),
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use std::net::Ipv4Addr;
-
-    use super::*;
-
-    #[test]
-    fn test_host_parser() {
-        assert_eq!(parse_host("example.com"), ("example.com", None));
-        assert_eq!(parse_host("example.com:8080"), ("example.com", Some(8080)));
-        assert_eq!(parse_host("example:8080"), ("example", Some(8080)));
-        assert_eq!(parse_host("example.com:false"), ("example.com", None));
-        assert_eq!(parse_host("example.com:false:false"), ("example.com", None));
-    }
-
-    #[test]
-    fn test_addr_iter_multi() {
-        let localhost = SocketAddr::from((IpAddr::from(Ipv4Addr::LOCALHOST), 8080));
-        let unspecified = SocketAddr::from((IpAddr::from(Ipv4Addr::UNSPECIFIED), 8080));
-
-        let mut addrs = VecDeque::new();
-        addrs.push_back(localhost);
-        addrs.push_back(unspecified);
-
-        let mut iter = ConnectAddrsIter::Multi(addrs.iter());
-        assert_eq!(iter.next(), Some(localhost));
-        assert_eq!(iter.next(), Some(unspecified));
-        assert_eq!(iter.next(), None);
-
-        let mut iter = ConnectAddrsIter::MultiOwned(addrs.into_iter());
-        assert_eq!(iter.next(), Some(localhost));
-        assert_eq!(iter.next(), Some(unspecified));
-        assert_eq!(iter.next(), None);
-    }
-
-    #[test]
-    fn test_addr_iter_single() {
-        let localhost = SocketAddr::from((IpAddr::from(Ipv4Addr::LOCALHOST), 8080));
-
-        let mut iter = ConnectAddrsIter::One(localhost);
-        assert_eq!(iter.next(), Some(localhost));
-        assert_eq!(iter.next(), None);
-
-        let mut iter = ConnectAddrsIter::None;
-        assert_eq!(iter.next(), None);
-    }
-
-    #[test]
-    fn test_local_addr() {
-        let conn = Connect::new("hello").set_local_addr([127, 0, 0, 1]);
-        assert_eq!(
-            conn.local_addr.unwrap(),
-            IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1))
-        )
-    }
-
-    #[test]
-    fn request_ref() {
-        let conn = Connect::new("hello");
-        assert_eq!(conn.request(), &"hello")
-    }
-}

actix-tls/src/connect/connect_addrs.rs

@@ -0,0 +1,82 @@
+use std::{
+    collections::{vec_deque, VecDeque},
+    fmt, iter,
+    net::SocketAddr,
+};
+
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+pub(crate) enum ConnectAddrs {
+    None,
+    One(SocketAddr),
+    // TODO: consider using smallvec
+    Multi(VecDeque<SocketAddr>),
+}
+
+impl ConnectAddrs {
+    pub(crate) fn is_unresolved(&self) -> bool {
+        matches!(self, Self::None)
+    }
+
+    pub(crate) fn is_resolved(&self) -> bool {
+        !self.is_unresolved()
+    }
+}
+
+impl Default for ConnectAddrs {
+    fn default() -> Self {
+        Self::None
+    }
+}
+
+impl From<Option<SocketAddr>> for ConnectAddrs {
+    fn from(addr: Option<SocketAddr>) -> Self {
+        match addr {
+            Some(addr) => ConnectAddrs::One(addr),
+            None => ConnectAddrs::None,
+        }
+    }
+}
+
+/// Iterator over addresses in a [`Connect`] request.
+#[derive(Clone)]
+pub(crate) enum ConnectAddrsIter<'a> {
+    None,
+    One(SocketAddr),
+    Multi(vec_deque::Iter<'a, SocketAddr>),
+    MultiOwned(vec_deque::IntoIter<SocketAddr>),
+}
+
+impl Iterator for ConnectAddrsIter<'_> {
+    type Item = SocketAddr;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        match *self {
+            Self::None => None,
+            Self::One(addr) => {
+                *self = Self::None;
+                Some(addr)
+            }
+            Self::Multi(ref mut iter) => iter.next().copied(),
+            Self::MultiOwned(ref mut iter) => iter.next(),
+        }
+    }
+
+    fn size_hint(&self) -> (usize, Option<usize>) {
+        match *self {
+            Self::None => (0, Some(0)),
+            Self::One(_) => (1, Some(1)),
+            Self::Multi(ref iter) => iter.size_hint(),
+            Self::MultiOwned(ref iter) => iter.size_hint(),
+        }
+    }
+}
+
+impl fmt::Debug for ConnectAddrsIter<'_> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_list().entries(self.clone()).finish()
+    }
+}
+
+impl iter::ExactSizeIterator for ConnectAddrsIter<'_> {}
+
+impl iter::FusedIterator for ConnectAddrsIter<'_> {}

actix-tls/src/connect/connection.rs

@@ -0,0 +1,51 @@
+use super::Host;
+
+/// Wraps underlying I/O and the connection request that initiated it.
+#[derive(Debug)]
+pub struct Connection<R, IO> {
+    pub(crate) req: R,
+    pub(crate) io: IO,
+}
+
+impl_more::impl_deref_and_mut!(<R, IO> in Connection<R, IO> => io: IO);
+
+impl<R, IO> Connection<R, IO> {
+    /// Construct new `Connection` from request and IO parts.
+    pub fn new(req: R, io: IO) -> Self {
+        Self { req, io }
+    }
+}
+
+impl<R, IO> Connection<R, IO> {
+    /// Deconstructs into IO and request parts.
+    pub fn into_parts(self) -> (IO, R) {
+        (self.io, self.req)
+    }
+
+    /// Replaces underlying IO, returning old IO and new `Connection`.
+    pub fn replace_io<IO2>(self, io: IO2) -> (IO, Connection<R, IO2>) {
+        (self.io, Connection { io, req: self.req })
+    }
+
+    /// Returns a shared reference to the underlying IO.
+    pub fn io_ref(&self) -> &IO {
+        &self.io
+    }
+
+    /// Returns a mutable reference to the underlying IO.
+    pub fn io_mut(&mut self) -> &mut IO {
+        &mut self.io
+    }
+
+    /// Returns a reference to the connection request.
+    pub fn request(&self) -> &R {
+        &self.req
+    }
+}
+
+impl<R: Host, IO> Connection<R, IO> {
+    /// Returns hostname.
+    pub fn hostname(&self) -> &str {
+        self.req.hostname()
+    }
+}

actix-tls/src/connect/connector.rs

@@ -1,194 +1,128 @@
 use std::{
-    collections::VecDeque,
     future::Future,
-    io,
-    net::{IpAddr, SocketAddr, SocketAddrV4, SocketAddrV6},
     pin::Pin,
     task::{Context, Poll},
 };
 
-use actix_rt::net::{TcpSocket, TcpStream};
+use actix_rt::net::TcpStream;
 use actix_service::{Service, ServiceFactory};
-use futures_core::{future::LocalBoxFuture, ready};
-use log::{error, trace};
-use tokio_util::sync::ReusableBoxFuture;
+use actix_utils::future::{ok, Ready};
+use futures_core::ready;
 
-use super::connect::{Address, Connect, ConnectAddrs, Connection};
-use super::error::ConnectError;
+use super::{
+    error::ConnectError,
+    resolver::{Resolver, ResolverService},
+    tcp::{TcpConnector, TcpConnectorService},
+    ConnectInfo, Connection, Host,
+};
 
-/// TCP connector service factory
-#[derive(Debug, Copy, Clone)]
-pub struct TcpConnectorFactory;
+/// Combined resolver and TCP connector service factory.
+///
+/// Used to create [`ConnectorService`]s which receive connection information, resolve DNS if
+/// required, and return a TCP stream.
+#[derive(Clone, Default)]
+pub struct Connector {
+    resolver: Resolver,
+}
 
-impl TcpConnectorFactory {
-    /// Create TCP connector service
-    pub fn service(&self) -> TcpConnector {
-        TcpConnector
+impl Connector {
+    /// Constructs new connector factory with the given resolver.
+    pub fn new(resolver: Resolver) -> Self {
+        Connector { resolver }
+    }
+
+    /// Build connector service.
+    pub fn service(&self) -> ConnectorService {
+        ConnectorService {
+            tcp: TcpConnector::default().service(),
+            resolver: self.resolver.service(),
+        }
     }
 }
 
-impl<T: Address> ServiceFactory<Connect<T>> for TcpConnectorFactory {
-    type Response = Connection<T, TcpStream>;
+impl<R: Host> ServiceFactory<ConnectInfo<R>> for Connector {
+    type Response = Connection<R, TcpStream>;
     type Error = ConnectError;
     type Config = ();
-    type Service = TcpConnector;
+    type Service = ConnectorService;
     type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
 
     fn new_service(&self, _: ()) -> Self::Future {
-        let service = self.service();
-        Box::pin(async move { Ok(service) })
+        ok(self.service())
     }
 }
 
-/// TCP connector service
-#[derive(Debug, Copy, Clone)]
-pub struct TcpConnector;
+/// Combined resolver and TCP connector service.
+///
+/// Service implementation receives connection information, resolves DNS if required, and returns
+/// a TCP stream.
+#[derive(Clone, Default)]
+pub struct ConnectorService {
+    tcp: TcpConnectorService,
+    resolver: ResolverService,
+}
 
-impl<T: Address> Service<Connect<T>> for TcpConnector {
-    type Response = Connection<T, TcpStream>;
+impl<R: Host> Service<ConnectInfo<R>> for ConnectorService {
+    type Response = Connection<R, TcpStream>;
     type Error = ConnectError;
-    type Future = TcpConnectorResponse<T>;
+    type Future = ConnectServiceResponse<R>;
 
     actix_service::always_ready!();
 
-    fn call(&self, req: Connect<T>) -> Self::Future {
-        let port = req.port();
-        let Connect {
-            req,
-            addr,
-            local_addr,
-            ..
-        } = req;
-
-        TcpConnectorResponse::new(req, port, local_addr, addr)
+    fn call(&self, req: ConnectInfo<R>) -> Self::Future {
+        ConnectServiceResponse {
+            fut: ConnectFut::Resolve(self.resolver.call(req)),
+            tcp: self.tcp,
+        }
     }
 }
 
-/// TCP stream connector response future
-pub enum TcpConnectorResponse<T> {
-    Response {
-        req: Option<T>,
-        port: u16,
-        local_addr: Option<IpAddr>,
-        addrs: Option<VecDeque<SocketAddr>>,
-        stream: ReusableBoxFuture<Result<TcpStream, io::Error>>,
-    },
-    Error(Option<ConnectError>),
+/// Chains futures of resolve and connect steps.
+pub(crate) enum ConnectFut<R: Host> {
+    Resolve(<ResolverService as Service<ConnectInfo<R>>>::Future),
+    Connect(<TcpConnectorService as Service<ConnectInfo<R>>>::Future),
 }
 
-impl<T: Address> TcpConnectorResponse<T> {
-    pub(crate) fn new(
-        req: T,
-        port: u16,
-        local_addr: Option<IpAddr>,
-        addr: ConnectAddrs,
-    ) -> TcpConnectorResponse<T> {
-        if addr.is_none() {
-            error!("TCP connector: unresolved connection address");
-            return TcpConnectorResponse::Error(Some(ConnectError::Unresolved));
-        }
+/// Container for the intermediate states of [`ConnectFut`].
+pub(crate) enum ConnectFutState<R: Host> {
+    Resolved(ConnectInfo<R>),
+    Connected(Connection<R, TcpStream>),
+}
 
-        trace!(
-            "TCP connector: connecting to {} on port {}",
-            req.hostname(),
-            port
-        );
+impl<R: Host> ConnectFut<R> {
+    fn poll_connect(
+        &mut self,
+        cx: &mut Context<'_>,
+    ) -> Poll<Result<ConnectFutState<R>, ConnectError>> {
+        match self {
+            ConnectFut::Resolve(ref mut fut) => {
+                Pin::new(fut).poll(cx).map_ok(ConnectFutState::Resolved)
+            }
 
-        match addr {
-            ConnectAddrs::None => unreachable!("none variant already checked"),
-
-            ConnectAddrs::One(addr) => TcpConnectorResponse::Response {
-                req: Some(req),
-                port,
-                local_addr,
-                addrs: None,
-                stream: ReusableBoxFuture::new(connect(addr, local_addr)),
-            },
-
-            // when resolver returns multiple socket addr for request they would be popped from
-            // front end of queue and returns with the first successful tcp connection.
-            ConnectAddrs::Multi(mut addrs) => {
-                let addr = addrs.pop_front().unwrap();
-
-                TcpConnectorResponse::Response {
-                    req: Some(req),
-                    port,
-                    local_addr,
-                    addrs: Some(addrs),
-                    stream: ReusableBoxFuture::new(connect(addr, local_addr)),
-                }
+            ConnectFut::Connect(ref mut fut) => {
+                Pin::new(fut).poll(cx).map_ok(ConnectFutState::Connected)
             }
         }
     }
 }
 
-impl<T: Address> Future for TcpConnectorResponse<T> {
-    type Output = Result<Connection<T, TcpStream>, ConnectError>;
+pub struct ConnectServiceResponse<R: Host> {
+    fut: ConnectFut<R>,
+    tcp: TcpConnectorService,
+}
 
-    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        match self.get_mut() {
-            TcpConnectorResponse::Error(err) => Poll::Ready(Err(err.take().unwrap())),
+impl<R: Host> Future for ConnectServiceResponse<R> {
+    type Output = Result<Connection<R, TcpStream>, ConnectError>;
 
-            TcpConnectorResponse::Response {
-                req,
-                port,
-                local_addr,
-                addrs,
-                stream,
-            } => loop {
-                match ready!(stream.poll(cx)) {
-                    Ok(sock) => {
-                        let req = req.take().unwrap();
-                        trace!(
-                            "TCP connector: successfully connected to {:?} - {:?}",
-                            req.hostname(),
-                            sock.peer_addr()
-                        );
-                        return Poll::Ready(Ok(Connection::new(sock, req)));
-                    }
-
-                    Err(err) => {
-                        trace!(
-                            "TCP connector: failed to connect to {:?} port: {}",
-                            req.as_ref().unwrap().hostname(),
-                            port,
-                        );
-
-                        if let Some(addr) = addrs.as_mut().and_then(|addrs| addrs.pop_front()) {
-                            stream.set(connect(addr, *local_addr));
-                        } else {
-                            return Poll::Ready(Err(ConnectError::Io(err)));
-                        }
-                    }
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        loop {
+            match ready!(self.fut.poll_connect(cx))? {
+                ConnectFutState::Resolved(res) => {
+                    self.fut = ConnectFut::Connect(self.tcp.call(res));
                 }
-            },
+                ConnectFutState::Connected(res) => return Poll::Ready(Ok(res)),
+            }
         }
     }
 }
-
-async fn connect(addr: SocketAddr, local_addr: Option<IpAddr>) -> io::Result<TcpStream> {
-    // use local addr if connect asks for it.
-    match local_addr {
-        Some(ip_addr) => {
-            let socket = match ip_addr {
-                IpAddr::V4(ip_addr) => {
-                    let socket = TcpSocket::new_v4()?;
-                    let addr = SocketAddr::V4(SocketAddrV4::new(ip_addr, 0));
-                    socket.bind(addr)?;
-                    socket
-                }
-                IpAddr::V6(ip_addr) => {
-                    let socket = TcpSocket::new_v6()?;
-                    let addr = SocketAddr::V6(SocketAddrV6::new(ip_addr, 0, 0, 0));
-                    socket.bind(addr)?;
-                    socket
-                }
-            };
-
-            socket.connect(addr).await
-        }
-
-        None => TcpStream::connect(addr).await,
-    }
-}

actix-tls/src/connect/error.rs

@@ -1,25 +1,44 @@
-use std::io;
+use std::{error::Error, fmt, io};
 
-use derive_more::Display;
-
-#[derive(Debug, Display)]
+/// Errors that can result from using a connector service.
+#[derive(Debug)]
 pub enum ConnectError {
-    /// Failed to resolve the hostname
-    #[display(fmt = "Failed resolving hostname: {}", _0)]
+    /// Failed to resolve the hostname.
     Resolver(Box<dyn std::error::Error>),
 
-    /// No dns records
-    #[display(fmt = "No dns records found for the input")]
+    /// No DNS records.
     NoRecords,
 
-    /// Invalid input
+    /// Invalid input.
     InvalidInput,
 
-    /// Unresolved host name
-    #[display(fmt = "Connector received `Connect` method with unresolved host")]
+    /// Unresolved host name.
     Unresolved,
 
-    /// Connection IO error
-    #[display(fmt = "{}", _0)]
+    /// Connection IO error.
     Io(io::Error),
 }
+
+impl fmt::Display for ConnectError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::NoRecords => f.write_str("No DNS records found for the input"),
+            Self::InvalidInput => f.write_str("Invalid input"),
+            Self::Unresolved => {
+                f.write_str("Connector received `Connect` method with unresolved host")
+            }
+            Self::Resolver(_) => f.write_str("Failed to resolve hostname"),
+            Self::Io(_) => f.write_str("I/O error"),
+        }
+    }
+}
+
+impl Error for ConnectError {
+    fn source(&self) -> Option<&(dyn Error + 'static)> {
+        match self {
+            Self::Resolver(err) => Some(&**err),
+            Self::Io(err) => Some(err),
+            Self::NoRecords | Self::InvalidInput | Self::Unresolved => None,
+        }
+    }
+}

actix-tls/src/connect/host.rs

@@ -0,0 +1,71 @@
+//! The [`Host`] trait.
+
+/// An interface for types where host parts (hostname and port) can be derived.
+///
+/// The [WHATWG URL Standard] defines the terminology used for this trait and its methods.
+///
+/// ```plain
+/// +------------------------+
+/// |          host          |
+/// +-----------------+------+
+/// |    hostname     | port |
+/// |                 |      |
+/// | sub.example.com : 8080 |
+/// +-----------------+------+
+/// ```
+///
+/// [WHATWG URL Standard]: https://url.spec.whatwg.org/
+pub trait Host: Unpin + 'static {
+    /// Extract hostname.
+    fn hostname(&self) -> &str;
+
+    /// Extract optional port.
+    fn port(&self) -> Option<u16> {
+        None
+    }
+}
+
+impl Host for String {
+    fn hostname(&self) -> &str {
+        self.split_once(':')
+            .map(|(hostname, _)| hostname)
+            .unwrap_or(self)
+    }
+
+    fn port(&self) -> Option<u16> {
+        self.split_once(':').and_then(|(_, port)| port.parse().ok())
+    }
+}
+
+impl Host for &'static str {
+    fn hostname(&self) -> &str {
+        self.split_once(':')
+            .map(|(hostname, _)| hostname)
+            .unwrap_or(self)
+    }
+
+    fn port(&self) -> Option<u16> {
+        self.split_once(':').and_then(|(_, port)| port.parse().ok())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    macro_rules! assert_connection_info_eq {
+        ($req:expr, $hostname:expr, $port:expr) => {{
+            assert_eq!($req.hostname(), $hostname);
+            assert_eq!($req.port(), $port);
+        }};
+    }
+
+    #[test]
+    fn host_parsing() {
+        assert_connection_info_eq!("example.com", "example.com", None);
+        assert_connection_info_eq!("example.com:8080", "example.com", Some(8080));
+        assert_connection_info_eq!("example:8080", "example", Some(8080));
+        assert_connection_info_eq!("example.com:false", "example.com", None);
+        assert_connection_info_eq!("example.com:false:false", "example.com", None);
+    }
+}

actix-tls/src/connect/info.rs

@@ -0,0 +1,249 @@
+//! Connection info struct.
+
+use std::{
+    collections::VecDeque,
+    fmt,
+    iter::{self, FromIterator as _},
+    mem,
+    net::{IpAddr, SocketAddr},
+};
+
+use super::{
+    connect_addrs::{ConnectAddrs, ConnectAddrsIter},
+    Host,
+};
+
+/// Connection request information.
+///
+/// May contain known/pre-resolved socket address(es) or a host that needs resolving with DNS.
+#[derive(Debug, PartialEq, Eq, Hash)]
+pub struct ConnectInfo<R> {
+    pub(crate) request: R,
+    pub(crate) port: u16,
+    pub(crate) addr: ConnectAddrs,
+    pub(crate) local_addr: Option<IpAddr>,
+}
+
+impl<R: Host> ConnectInfo<R> {
+    /// Constructs new connection info using a request.
+    pub fn new(request: R) -> ConnectInfo<R> {
+        let port = request.port();
+
+        ConnectInfo {
+            request,
+            port: port.unwrap_or(0),
+            addr: ConnectAddrs::None,
+            local_addr: None,
+        }
+    }
+
+    /// Constructs new connection info from request and known socket address.
+    ///
+    /// Since socket address is known, [`Connector`](super::Connector) will skip the DNS
+    /// resolution step.
+    pub fn with_addr(request: R, addr: SocketAddr) -> ConnectInfo<R> {
+        ConnectInfo {
+            request,
+            port: 0,
+            addr: ConnectAddrs::One(addr),
+            local_addr: None,
+        }
+    }
+
+    /// Set connection port.
+    ///
+    /// If request provided a port, this will override it.
+    pub fn set_port(mut self, port: u16) -> Self {
+        self.port = port;
+        self
+    }
+
+    /// Set connection socket address.
+    pub fn set_addr(mut self, addr: impl Into<Option<SocketAddr>>) -> Self {
+        self.addr = ConnectAddrs::from(addr.into());
+        self
+    }
+
+    /// Set list of addresses.
+    pub fn set_addrs<I>(mut self, addrs: I) -> Self
+    where
+        I: IntoIterator<Item = SocketAddr>,
+    {
+        let mut addrs = VecDeque::from_iter(addrs);
+        self.addr = if addrs.len() < 2 {
+            ConnectAddrs::from(addrs.pop_front())
+        } else {
+            ConnectAddrs::Multi(addrs)
+        };
+        self
+    }
+
+    /// Set local address to connection with.
+    ///
+    /// Useful in situations where the IP address bound to a particular network interface is known.
+    /// This would make sure the socket is opened through that interface.
+    pub fn set_local_addr(mut self, addr: impl Into<IpAddr>) -> Self {
+        self.local_addr = Some(addr.into());
+        self
+    }
+
+    /// Returns a reference to the connection request.
+    pub fn request(&self) -> &R {
+        &self.request
+    }
+
+    /// Returns request hostname.
+    pub fn hostname(&self) -> &str {
+        self.request.hostname()
+    }
+
+    /// Returns request port.
+    pub fn port(&self) -> u16 {
+        self.request.port().unwrap_or(self.port)
+    }
+
+    /// Get borrowed iterator of resolved request addresses.
+    ///
+    /// # Examples
+    /// ```
+    /// # use std::net::SocketAddr;
+    /// # use actix_tls::connect::ConnectInfo;
+    /// let addr = SocketAddr::from(([127, 0, 0, 1], 4242));
+    ///
+    /// let conn = ConnectInfo::new("localhost");
+    /// let mut addrs = conn.addrs();
+    /// assert!(addrs.next().is_none());
+    ///
+    /// let conn = ConnectInfo::with_addr("localhost", addr);
+    /// let mut addrs = conn.addrs();
+    /// assert_eq!(addrs.next().unwrap(), addr);
+    /// ```
+    pub fn addrs(
+        &self,
+    ) -> impl Iterator<Item = SocketAddr>
+           + ExactSizeIterator
+           + iter::FusedIterator
+           + Clone
+           + fmt::Debug
+           + '_ {
+        match self.addr {
+            ConnectAddrs::None => ConnectAddrsIter::None,
+            ConnectAddrs::One(addr) => ConnectAddrsIter::One(addr),
+            ConnectAddrs::Multi(ref addrs) => ConnectAddrsIter::Multi(addrs.iter()),
+        }
+    }
+
+    /// Take owned iterator resolved request addresses.
+    ///
+    /// # Examples
+    /// ```
+    /// # use std::net::SocketAddr;
+    /// # use actix_tls::connect::ConnectInfo;
+    /// let addr = SocketAddr::from(([127, 0, 0, 1], 4242));
+    ///
+    /// let mut conn = ConnectInfo::new("localhost");
+    /// let mut addrs = conn.take_addrs();
+    /// assert!(addrs.next().is_none());
+    ///
+    /// let mut conn = ConnectInfo::with_addr("localhost", addr);
+    /// let mut addrs = conn.take_addrs();
+    /// assert_eq!(addrs.next().unwrap(), addr);
+    /// ```
+    pub fn take_addrs(
+        &mut self,
+    ) -> impl Iterator<Item = SocketAddr>
+           + ExactSizeIterator
+           + iter::FusedIterator
+           + Clone
+           + fmt::Debug
+           + 'static {
+        match mem::take(&mut self.addr) {
+            ConnectAddrs::None => ConnectAddrsIter::None,
+            ConnectAddrs::One(addr) => ConnectAddrsIter::One(addr),
+            ConnectAddrs::Multi(addrs) => ConnectAddrsIter::MultiOwned(addrs.into_iter()),
+        }
+    }
+}
+
+impl<R: Host> From<R> for ConnectInfo<R> {
+    fn from(addr: R) -> Self {
+        ConnectInfo::new(addr)
+    }
+}
+
+impl<R: Host> fmt::Display for ConnectInfo<R> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}:{}", self.hostname(), self.port())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::net::Ipv4Addr;
+
+    use super::*;
+
+    #[test]
+    fn test_addr_iter_multi() {
+        let localhost = SocketAddr::from((IpAddr::from(Ipv4Addr::LOCALHOST), 8080));
+        let unspecified = SocketAddr::from((IpAddr::from(Ipv4Addr::UNSPECIFIED), 8080));
+
+        let mut addrs = VecDeque::new();
+        addrs.push_back(localhost);
+        addrs.push_back(unspecified);
+
+        let mut iter = ConnectAddrsIter::Multi(addrs.iter());
+        assert_eq!(iter.next(), Some(localhost));
+        assert_eq!(iter.next(), Some(unspecified));
+        assert_eq!(iter.next(), None);
+
+        let mut iter = ConnectAddrsIter::MultiOwned(addrs.into_iter());
+        assert_eq!(iter.next(), Some(localhost));
+        assert_eq!(iter.next(), Some(unspecified));
+        assert_eq!(iter.next(), None);
+    }
+
+    #[test]
+    fn test_addr_iter_single() {
+        let localhost = SocketAddr::from((IpAddr::from(Ipv4Addr::LOCALHOST), 8080));
+
+        let mut iter = ConnectAddrsIter::One(localhost);
+        assert_eq!(iter.next(), Some(localhost));
+        assert_eq!(iter.next(), None);
+
+        let mut iter = ConnectAddrsIter::None;
+        assert_eq!(iter.next(), None);
+    }
+
+    #[test]
+    fn test_local_addr() {
+        let conn = ConnectInfo::new("hello").set_local_addr([127, 0, 0, 1]);
+        assert_eq!(
+            conn.local_addr.unwrap(),
+            IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1))
+        )
+    }
+
+    #[test]
+    fn request_ref() {
+        let conn = ConnectInfo::new("hello");
+        assert_eq!(conn.request(), &"hello")
+    }
+
+    #[test]
+    fn set_connect_addr_into_option() {
+        let addr = SocketAddr::from(([127, 0, 0, 1], 4242));
+
+        let conn = ConnectInfo::new("hello").set_addr(None);
+        let mut addrs = conn.addrs();
+        assert!(addrs.next().is_none());
+
+        let conn = ConnectInfo::new("hello").set_addr(addr);
+        let mut addrs = conn.addrs();
+        assert_eq!(addrs.next().unwrap(), addr);
+
+        let conn = ConnectInfo::new("hello").set_addr(Some(addr));
+        let mut addrs = conn.addrs();
+        assert_eq!(addrs.next().unwrap(), addr);
+    }
+}

actix-tls/src/connect/mod.rs

@@ -1,76 +1,46 @@
-//! TCP connector services for Actix ecosystem.
+//! TCP and TLS connector services.
 //!
 //! # Stages of the TCP connector service:
-//! - Resolve [`Address`] with given [`Resolver`] and collect list of socket addresses.
-//! - Establish TCP connection and return [`TcpStream`].
+//! 1. Resolve [`Host`] (if needed) with given [`Resolver`] and collect list of socket addresses.
+//! 1. Establish TCP connection and return [`TcpStream`].
 //!
 //! # Stages of TLS connector services:
-//! - Establish [`TcpStream`] with connector service.
-//! - Wrap the stream and perform connect handshake with remote peer.
-//! - Return certain stream type that impls `AsyncRead` and `AsyncWrite`.
-//!
-//! # Package feature
-//! * `openssl` - enables TLS support via `openssl` crate
-//! * `rustls` - enables TLS support via `rustls` crate
+//! 1. Resolve DNS and establish a [`TcpStream`] with the TCP connector service.
+//! 1. Wrap the stream and perform connect handshake with remote peer.
+//! 1. Return wrapped stream type that implements `AsyncRead` and `AsyncWrite`.
 //!
 //! [`TcpStream`]: actix_rt::net::TcpStream
 
-#[allow(clippy::module_inception)]
-mod connect;
+mod connect_addrs;
+mod connection;
 mod connector;
 mod error;
+mod host;
+mod info;
 mod resolve;
-mod service;
-pub mod tls;
-#[doc(hidden)]
-pub use tls as ssl;
+mod resolver;
+pub mod tcp;
+
 #[cfg(feature = "uri")]
+#[cfg_attr(docsrs, doc(cfg(feature = "uri")))]
 mod uri;
 
-use actix_rt::net::TcpStream;
-use actix_service::{Service, ServiceFactory};
+#[cfg(feature = "openssl")]
+#[cfg_attr(docsrs, doc(cfg(feature = "openssl")))]
+pub mod openssl;
 
-pub use self::connect::{Address, Connect, Connection};
-pub use self::connector::{TcpConnector, TcpConnectorFactory};
+#[cfg(feature = "rustls")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rustls")))]
+pub mod rustls;
+
+#[cfg(feature = "native-tls")]
+#[cfg_attr(docsrs, doc(cfg(feature = "native-tls")))]
+pub mod native_tls;
+
+pub use self::connection::Connection;
+pub use self::connector::{Connector, ConnectorService};
 pub use self::error::ConnectError;
-pub use self::resolve::{Resolve, Resolver, ResolverFactory};
-pub use self::service::{ConnectService, ConnectServiceFactory};
-
-/// Create TCP connector service.
-pub fn new_connector<T: Address + 'static>(
-    resolver: Resolver,
-) -> impl Service<Connect<T>, Response = Connection<T, TcpStream>, Error = ConnectError> + Clone
-{
-    ConnectServiceFactory::new(resolver).service()
-}
-
-/// Create TCP connector service factory.
-pub fn new_connector_factory<T: Address + 'static>(
-    resolver: Resolver,
-) -> impl ServiceFactory<
-    Connect<T>,
-    Config = (),
-    Response = Connection<T, TcpStream>,
-    Error = ConnectError,
-    InitError = (),
-> + Clone {
-    ConnectServiceFactory::new(resolver)
-}
-
-/// Create connector service with default parameters.
-pub fn default_connector<T: Address + 'static>(
-) -> impl Service<Connect<T>, Response = Connection<T, TcpStream>, Error = ConnectError> + Clone
-{
-    new_connector(Resolver::Default)
-}
-
-/// Create connector service factory with default parameters.
-pub fn default_connector_factory<T: Address + 'static>() -> impl ServiceFactory<
-    Connect<T>,
-    Config = (),
-    Response = Connection<T, TcpStream>,
-    Error = ConnectError,
-    InitError = (),
-> + Clone {
-    new_connector_factory(Resolver::Default)
-}
+pub use self::host::Host;
+pub use self::info::ConnectInfo;
+pub use self::resolve::Resolve;
+pub use self::resolver::{Resolver, ResolverService};

actix-tls/src/connect/native_tls.rs

@@ -0,0 +1,91 @@
+//! Native-TLS based connector service.
+//!
+//! See [`TlsConnector`] for main connector service factory docs.
+
+use std::io;
+
+use actix_rt::net::ActixStream;
+use actix_service::{Service, ServiceFactory};
+use actix_utils::future::{ok, Ready};
+use futures_core::future::LocalBoxFuture;
+use tokio_native_tls::{
+    native_tls::TlsConnector as NativeTlsConnector, TlsConnector as AsyncNativeTlsConnector,
+    TlsStream as AsyncTlsStream,
+};
+use tracing::trace;
+
+use crate::connect::{Connection, Host};
+
+pub mod reexports {
+    //! Re-exports from `native-tls` and `tokio-native-tls` that are useful for connectors.
+
+    pub use tokio_native_tls::native_tls::TlsConnector;
+    pub use tokio_native_tls::TlsStream as AsyncTlsStream;
+}
+
+/// Connector service and factory using `native-tls`.
+#[derive(Clone)]
+pub struct TlsConnector {
+    connector: AsyncNativeTlsConnector,
+}
+
+impl TlsConnector {
+    /// Constructs new connector service from a `native-tls` connector.
+    ///
+    /// This type is it's own service factory, so it can be used in that setting, too.
+    pub fn new(connector: NativeTlsConnector) -> Self {
+        Self {
+            connector: AsyncNativeTlsConnector::from(connector),
+        }
+    }
+}
+
+impl<R: Host, IO> ServiceFactory<Connection<R, IO>> for TlsConnector
+where
+    IO: ActixStream + 'static,
+{
+    type Response = Connection<R, AsyncTlsStream<IO>>;
+    type Error = io::Error;
+    type Config = ();
+    type Service = Self;
+    type InitError = ();
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        ok(self.clone())
+    }
+}
+
+/// The `native-tls` connector is both it's ServiceFactory and Service impl type.
+/// As the factory and service share the same type and state.
+impl<R, IO> Service<Connection<R, IO>> for TlsConnector
+where
+    R: Host,
+    IO: ActixStream + 'static,
+{
+    type Response = Connection<R, AsyncTlsStream<IO>>;
+    type Error = io::Error;
+    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
+
+    actix_service::always_ready!();
+
+    fn call(&self, stream: Connection<R, IO>) -> Self::Future {
+        let (io, stream) = stream.replace_io(());
+        let connector = self.connector.clone();
+
+        Box::pin(async move {
+            trace!("TLS handshake start for: {:?}", stream.hostname());
+            connector
+                .connect(stream.hostname(), io)
+                .await
+                .map(|res| {
+                    trace!("TLS handshake success: {:?}", stream.hostname());
+                    stream.replace_io(res).1
+                })
+                .map_err(|e| {
+                    trace!("TLS handshake error: {:?}", e);
+                    io::Error::new(io::ErrorKind::Other, format!("{}", e))
+                })
+        })
+    }
+}

actix-tls/src/connect/openssl.rs

@@ -0,0 +1,153 @@
+//! OpenSSL based connector service.
+//!
+//! See [`TlsConnector`] for main connector service factory docs.
+
+use std::{
+    future::Future,
+    io,
+    pin::Pin,
+    task::{Context, Poll},
+};
+
+use actix_rt::net::ActixStream;
+use actix_service::{Service, ServiceFactory};
+use actix_utils::future::{ok, Ready};
+use futures_core::ready;
+use openssl::ssl::SslConnector;
+use tokio_openssl::SslStream as AsyncSslStream;
+use tracing::trace;
+
+use crate::connect::{Connection, Host};
+
+pub mod reexports {
+    //! Re-exports from `openssl` and `tokio-openssl` that are useful for connectors.
+
+    pub use openssl::ssl::{
+        Error, HandshakeError, SslConnector, SslConnectorBuilder, SslMethod,
+    };
+    pub use tokio_openssl::SslStream as AsyncSslStream;
+}
+
+/// Connector service factory using `openssl`.
+pub struct TlsConnector {
+    connector: SslConnector,
+}
+
+impl TlsConnector {
+    /// Constructs new connector service factory from an `openssl` connector.
+    pub fn new(connector: SslConnector) -> Self {
+        TlsConnector { connector }
+    }
+
+    /// Constructs new connector service from an `openssl` connector.
+    pub fn service(connector: SslConnector) -> TlsConnectorService {
+        TlsConnectorService { connector }
+    }
+}
+
+impl Clone for TlsConnector {
+    fn clone(&self) -> Self {
+        Self {
+            connector: self.connector.clone(),
+        }
+    }
+}
+
+impl<R, IO> ServiceFactory<Connection<R, IO>> for TlsConnector
+where
+    R: Host,
+    IO: ActixStream + 'static,
+{
+    type Response = Connection<R, AsyncSslStream<IO>>;
+    type Error = io::Error;
+    type Config = ();
+    type Service = TlsConnectorService;
+    type InitError = ();
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        ok(TlsConnectorService {
+            connector: self.connector.clone(),
+        })
+    }
+}
+
+/// Connector service using `openssl`.
+pub struct TlsConnectorService {
+    connector: SslConnector,
+}
+
+impl Clone for TlsConnectorService {
+    fn clone(&self) -> Self {
+        Self {
+            connector: self.connector.clone(),
+        }
+    }
+}
+
+impl<R, IO> Service<Connection<R, IO>> for TlsConnectorService
+where
+    R: Host,
+    IO: ActixStream,
+{
+    type Response = Connection<R, AsyncSslStream<IO>>;
+    type Error = io::Error;
+    type Future = ConnectFut<R, IO>;
+
+    actix_service::always_ready!();
+
+    fn call(&self, stream: Connection<R, IO>) -> Self::Future {
+        trace!("TLS handshake start for: {:?}", stream.hostname());
+
+        let (io, stream) = stream.replace_io(());
+        let host = stream.hostname();
+
+        let config = self
+            .connector
+            .configure()
+            .expect("SSL connect configuration was invalid.");
+
+        let ssl = config
+            .into_ssl(host)
+            .expect("SSL connect configuration was invalid.");
+
+        ConnectFut {
+            io: Some(AsyncSslStream::new(ssl, io).unwrap()),
+            stream: Some(stream),
+        }
+    }
+}
+
+/// Connect future for OpenSSL service.
+#[doc(hidden)]
+pub struct ConnectFut<R, IO> {
+    io: Option<AsyncSslStream<IO>>,
+    stream: Option<Connection<R, ()>>,
+}
+
+impl<R: Host, IO> Future for ConnectFut<R, IO>
+where
+    R: Host,
+    IO: ActixStream,
+{
+    type Output = Result<Connection<R, AsyncSslStream<IO>>, io::Error>;
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let this = self.get_mut();
+
+        match ready!(Pin::new(this.io.as_mut().unwrap()).poll_connect(cx)) {
+            Ok(_) => {
+                let stream = this.stream.take().unwrap();
+                trace!("TLS handshake success: {:?}", stream.hostname());
+                Poll::Ready(Ok(stream.replace_io(this.io.take().unwrap()).1))
+            }
+            Err(err) => {
+                trace!("TLS handshake error: {:?}", err);
+                Poll::Ready(Err(io::Error::new(
+                    io::ErrorKind::Other,
+                    format!("{}", err),
+                )))
+            }
+        }
+    }
+}

actix-tls/src/connect/resolve.rs

@@ -1,61 +1,12 @@
-use std::{
-    future::Future,
-    io,
-    net::SocketAddr,
-    pin::Pin,
-    rc::Rc,
-    task::{Context, Poll},
-    vec::IntoIter,
-};
+//! The [`Resolve`] trait.
 
-use actix_rt::task::{spawn_blocking, JoinHandle};
-use actix_service::{Service, ServiceFactory};
-use futures_core::{future::LocalBoxFuture, ready};
-use log::trace;
+use std::{error::Error as StdError, net::SocketAddr};
 
-use super::connect::{Address, Connect};
-use super::error::ConnectError;
+use futures_core::future::LocalBoxFuture;
 
-/// DNS Resolver Service Factory
-#[derive(Clone)]
-pub struct ResolverFactory {
-    resolver: Resolver,
-}
-
-impl ResolverFactory {
-    pub fn new(resolver: Resolver) -> Self {
-        Self { resolver }
-    }
-
-    pub fn service(&self) -> Resolver {
-        self.resolver.clone()
-    }
-}
-
-impl<T: Address> ServiceFactory<Connect<T>> for ResolverFactory {
-    type Response = Connect<T>;
-    type Error = ConnectError;
-    type Config = ();
-    type Service = Resolver;
-    type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
-
-    fn new_service(&self, _: ()) -> Self::Future {
-        let service = self.resolver.clone();
-        Box::pin(async { Ok(service) })
-    }
-}
-
-/// DNS Resolver Service
-#[derive(Clone)]
-pub enum Resolver {
-    Default,
-    Custom(Rc<dyn Resolve>),
-}
-
-/// An interface for custom async DNS resolvers.
+/// Custom async DNS resolvers.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use std::net::SocketAddr;
 ///
@@ -89,155 +40,23 @@ pub enum Resolver {
 ///     }
 /// }
 ///
-/// let resolver = MyResolver {
+/// let my_resolver = MyResolver {
 ///     trust_dns: TokioAsyncResolver::tokio_from_system_conf().unwrap(),
 /// };
 ///
-/// // construct custom resolver
-/// let resolver = Resolver::new_custom(resolver);
-///
-/// // pass custom resolver to connector builder.
-/// // connector would then be usable as a service or awc's connector.
-/// let connector = actix_tls::connect::new_connector::<&str>(resolver.clone());
+/// // wrap custom resolver
+/// let resolver = Resolver::custom(my_resolver);
 ///
 /// // resolver can be passed to connector factory where returned service factory
-/// // can be used to construct new connector services.
-/// let factory = actix_tls::connect::new_connector_factory::<&str>(resolver);
+/// // can be used to construct new connector services for use in clients
+/// let factory = actix_tls::connect::Connector::new(resolver);
+/// let connector = factory.service();
 /// ```
 pub trait Resolve {
+    /// Given DNS lookup information, returns a future that completes with socket information.
     fn lookup<'a>(
         &'a self,
         host: &'a str,
         port: u16,
-    ) -> LocalBoxFuture<'a, Result<Vec<SocketAddr>, Box<dyn std::error::Error>>>;
-}
-
-impl Resolver {
-    /// Constructor for custom Resolve trait object and use it as resolver.
-    pub fn new_custom(resolver: impl Resolve + 'static) -> Self {
-        Self::Custom(Rc::new(resolver))
-    }
-
-    // look up with default resolver variant.
-    fn look_up<T: Address>(req: &Connect<T>) -> JoinHandle<io::Result<IntoIter<SocketAddr>>> {
-        let host = req.hostname();
-        // TODO: Connect should always return host with port if possible.
-        let host = if req
-            .hostname()
-            .splitn(2, ':')
-            .last()
-            .and_then(|p| p.parse::<u16>().ok())
-            .map(|p| p == req.port())
-            .unwrap_or(false)
-        {
-            host.to_string()
-        } else {
-            format!("{}:{}", host, req.port())
-        };
-
-        // run blocking DNS lookup in thread pool
-        spawn_blocking(move || std::net::ToSocketAddrs::to_socket_addrs(&host))
-    }
-}
-
-impl<T: Address> Service<Connect<T>> for Resolver {
-    type Response = Connect<T>;
-    type Error = ConnectError;
-    type Future = ResolverFuture<T>;
-
-    actix_service::always_ready!();
-
-    fn call(&self, req: Connect<T>) -> Self::Future {
-        if req.addr.is_some() {
-            ResolverFuture::Connected(Some(req))
-        } else if let Ok(ip) = req.hostname().parse() {
-            let addr = SocketAddr::new(ip, req.port());
-            let req = req.set_addr(Some(addr));
-            ResolverFuture::Connected(Some(req))
-        } else {
-            trace!("DNS resolver: resolving host {:?}", req.hostname());
-
-            match self {
-                Self::Default => {
-                    let fut = Self::look_up(&req);
-                    ResolverFuture::LookUp(fut, Some(req))
-                }
-
-                Self::Custom(resolver) => {
-                    let resolver = Rc::clone(resolver);
-                    ResolverFuture::LookupCustom(Box::pin(async move {
-                        let addrs = resolver
-                            .lookup(req.hostname(), req.port())
-                            .await
-                            .map_err(ConnectError::Resolver)?;
-
-                        let req = req.set_addrs(addrs);
-
-                        if req.addr.is_none() {
-                            Err(ConnectError::NoRecords)
-                        } else {
-                            Ok(req)
-                        }
-                    }))
-                }
-            }
-        }
-    }
-}
-
-pub enum ResolverFuture<T: Address> {
-    Connected(Option<Connect<T>>),
-    LookUp(
-        JoinHandle<io::Result<IntoIter<SocketAddr>>>,
-        Option<Connect<T>>,
-    ),
-    LookupCustom(LocalBoxFuture<'static, Result<Connect<T>, ConnectError>>),
-}
-
-impl<T: Address> Future for ResolverFuture<T> {
-    type Output = Result<Connect<T>, ConnectError>;
-
-    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        match self.get_mut() {
-            Self::Connected(conn) => Poll::Ready(Ok(conn
-                .take()
-                .expect("ResolverFuture polled after finished"))),
-
-            Self::LookUp(fut, req) => {
-                let res = match ready!(Pin::new(fut).poll(cx)) {
-                    Ok(Ok(res)) => Ok(res),
-                    Ok(Err(e)) => Err(ConnectError::Resolver(Box::new(e))),
-                    Err(e) => Err(ConnectError::Io(e.into())),
-                };
-
-                let req = req.take().unwrap();
-
-                let addrs = res.map_err(|err| {
-                    trace!(
-                        "DNS resolver: failed to resolve host {:?} err: {:?}",
-                        req.hostname(),
-                        err
-                    );
-
-                    err
-                })?;
-
-                let req = req.set_addrs(addrs);
-
-                trace!(
-                    "DNS resolver: host {:?} resolved to {:?}",
-                    req.hostname(),
-                    req.addrs()
-                );
-
-                if req.addr.is_none() {
-                    Poll::Ready(Err(ConnectError::NoRecords))
-                } else {
-                    Poll::Ready(Ok(req))
-                }
-            }
-
-            Self::LookupCustom(fut) => fut.as_mut().poll(cx),
-        }
-    }
+    ) -> LocalBoxFuture<'a, Result<Vec<SocketAddr>, Box<dyn StdError>>>;
 }

actix-tls/src/connect/resolver.rs

@@ -0,0 +1,201 @@
+use std::{
+    future::Future,
+    io,
+    net::SocketAddr,
+    pin::Pin,
+    rc::Rc,
+    task::{Context, Poll},
+    vec::IntoIter,
+};
+
+use actix_rt::task::{spawn_blocking, JoinHandle};
+use actix_service::{Service, ServiceFactory};
+use actix_utils::future::{ok, Ready};
+use futures_core::{future::LocalBoxFuture, ready};
+use tracing::trace;
+
+use super::{ConnectError, ConnectInfo, Host, Resolve};
+
+/// DNS resolver service factory.
+#[derive(Clone, Default)]
+pub struct Resolver {
+    resolver: ResolverService,
+}
+
+impl Resolver {
+    /// Constructs a new resolver factory with a custom resolver.
+    pub fn custom(resolver: impl Resolve + 'static) -> Self {
+        Self {
+            resolver: ResolverService::custom(resolver),
+        }
+    }
+
+    /// Returns a new resolver service.
+    pub fn service(&self) -> ResolverService {
+        self.resolver.clone()
+    }
+}
+
+impl<R: Host> ServiceFactory<ConnectInfo<R>> for Resolver {
+    type Response = ConnectInfo<R>;
+    type Error = ConnectError;
+    type Config = ();
+    type Service = ResolverService;
+    type InitError = ();
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        ok(self.resolver.clone())
+    }
+}
+
+#[derive(Clone)]
+enum ResolverKind {
+    /// Built-in DNS resolver.
+    ///
+    /// See [`std::net::ToSocketAddrs`] trait.
+    Default,
+
+    /// Custom, user-provided DNS resolver.
+    Custom(Rc<dyn Resolve>),
+}
+
+impl Default for ResolverKind {
+    fn default() -> Self {
+        Self::Default
+    }
+}
+
+/// DNS resolver service.
+#[derive(Clone, Default)]
+pub struct ResolverService {
+    kind: ResolverKind,
+}
+
+impl ResolverService {
+    /// Constructor for custom Resolve trait object and use it as resolver.
+    pub fn custom(resolver: impl Resolve + 'static) -> Self {
+        Self {
+            kind: ResolverKind::Custom(Rc::new(resolver)),
+        }
+    }
+
+    /// Resolve DNS with default resolver.
+    fn default_lookup<R: Host>(
+        req: &ConnectInfo<R>,
+    ) -> JoinHandle<io::Result<IntoIter<SocketAddr>>> {
+        // reconstruct host; concatenate hostname and port together
+        let host = format!("{}:{}", req.hostname(), req.port());
+
+        // run blocking DNS lookup in thread pool since DNS lookups can take upwards of seconds on
+        // some platforms if conditions are poor and OS-level cache is not populated
+        spawn_blocking(move || std::net::ToSocketAddrs::to_socket_addrs(&host))
+    }
+}
+
+impl<R: Host> Service<ConnectInfo<R>> for ResolverService {
+    type Response = ConnectInfo<R>;
+    type Error = ConnectError;
+    type Future = ResolverFut<R>;
+
+    actix_service::always_ready!();
+
+    fn call(&self, req: ConnectInfo<R>) -> Self::Future {
+        if req.addr.is_resolved() {
+            // socket address(es) already resolved; return existing connection request
+            ResolverFut::Resolved(Some(req))
+        } else if let Ok(ip) = req.hostname().parse() {
+            // request hostname is valid ip address; add address to request and return
+            let addr = SocketAddr::new(ip, req.port());
+            let req = req.set_addr(Some(addr));
+            ResolverFut::Resolved(Some(req))
+        } else {
+            trace!("DNS resolver: resolving host {:?}", req.hostname());
+
+            match &self.kind {
+                ResolverKind::Default => {
+                    let fut = Self::default_lookup(&req);
+                    ResolverFut::LookUp(fut, Some(req))
+                }
+
+                ResolverKind::Custom(resolver) => {
+                    let resolver = Rc::clone(resolver);
+
+                    ResolverFut::LookupCustom(Box::pin(async move {
+                        let addrs = resolver
+                            .lookup(req.hostname(), req.port())
+                            .await
+                            .map_err(ConnectError::Resolver)?;
+
+                        let req = req.set_addrs(addrs);
+
+                        if req.addr.is_unresolved() {
+                            Err(ConnectError::NoRecords)
+                        } else {
+                            Ok(req)
+                        }
+                    }))
+                }
+            }
+        }
+    }
+}
+
+/// Future for resolver service.
+#[doc(hidden)]
+pub enum ResolverFut<R: Host> {
+    Resolved(Option<ConnectInfo<R>>),
+    LookUp(
+        JoinHandle<io::Result<IntoIter<SocketAddr>>>,
+        Option<ConnectInfo<R>>,
+    ),
+    LookupCustom(LocalBoxFuture<'static, Result<ConnectInfo<R>, ConnectError>>),
+}
+
+impl<R: Host> Future for ResolverFut<R> {
+    type Output = Result<ConnectInfo<R>, ConnectError>;
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        match self.get_mut() {
+            Self::Resolved(conn) => Poll::Ready(Ok(conn
+                .take()
+                .expect("ResolverFuture polled after finished"))),
+
+            Self::LookUp(fut, req) => {
+                let res = match ready!(Pin::new(fut).poll(cx)) {
+                    Ok(Ok(res)) => Ok(res),
+                    Ok(Err(err)) => Err(ConnectError::Resolver(Box::new(err))),
+                    Err(err) => Err(ConnectError::Io(err.into())),
+                };
+
+                let req = req.take().unwrap();
+
+                let addrs = res.map_err(|err| {
+                    trace!(
+                        "DNS resolver: failed to resolve host {:?} err: {:?}",
+                        req.hostname(),
+                        err
+                    );
+
+                    err
+                })?;
+
+                let req = req.set_addrs(addrs);
+
+                trace!(
+                    "DNS resolver: host {:?} resolved to {:?}",
+                    req.hostname(),
+                    req.addrs()
+                );
+
+                if req.addr.is_unresolved() {
+                    Poll::Ready(Err(ConnectError::NoRecords))
+                } else {
+                    Poll::Ready(Ok(req))
+                }
+            }
+
+            Self::LookupCustom(fut) => fut.as_mut().poll(cx),
+        }
+    }
+}

actix-tls/src/connect/rustls.rs

@@ -0,0 +1,148 @@
+//! Rustls based connector service.
+//!
+//! See [`TlsConnector`] for main connector service factory docs.
+
+use std::{
+    convert::TryFrom,
+    future::Future,
+    io,
+    pin::Pin,
+    sync::Arc,
+    task::{Context, Poll},
+};
+
+use actix_rt::net::ActixStream;
+use actix_service::{Service, ServiceFactory};
+use actix_utils::future::{ok, Ready};
+use futures_core::ready;
+use tokio_rustls::rustls::{client::ServerName, OwnedTrustAnchor, RootCertStore};
+use tokio_rustls::{client::TlsStream as AsyncTlsStream, rustls::ClientConfig};
+use tokio_rustls::{Connect as RustlsConnect, TlsConnector as RustlsTlsConnector};
+use tracing::trace;
+use webpki_roots::TLS_SERVER_ROOTS;
+
+use crate::connect::{Connection, Host};
+
+pub mod reexports {
+    //! Re-exports from `rustls` and `webpki_roots` that are useful for connectors.
+
+    pub use tokio_rustls::client::TlsStream as AsyncTlsStream;
+    pub use tokio_rustls::rustls::ClientConfig;
+    pub use webpki_roots::TLS_SERVER_ROOTS;
+}
+
+/// Returns standard root certificates from `webpki-roots` crate as a rustls certificate store.
+pub fn webpki_roots_cert_store() -> RootCertStore {
+    let mut root_certs = RootCertStore::empty();
+    for cert in TLS_SERVER_ROOTS.0 {
+        let cert = OwnedTrustAnchor::from_subject_spki_name_constraints(
+            cert.subject,
+            cert.spki,
+            cert.name_constraints,
+        );
+        let certs = vec![cert].into_iter();
+        root_certs.add_server_trust_anchors(certs);
+    }
+    root_certs
+}
+
+/// Connector service factory using `rustls`.
+#[derive(Clone)]
+pub struct TlsConnector {
+    connector: Arc<ClientConfig>,
+}
+
+impl TlsConnector {
+    /// Constructs new connector service factory from a `rustls` client configuration.
+    pub fn new(connector: Arc<ClientConfig>) -> Self {
+        TlsConnector { connector }
+    }
+
+    /// Constructs new connector service from a `rustls` client configuration.
+    pub fn service(connector: Arc<ClientConfig>) -> TlsConnectorService {
+        TlsConnectorService { connector }
+    }
+}
+
+impl<R, IO> ServiceFactory<Connection<R, IO>> for TlsConnector
+where
+    R: Host,
+    IO: ActixStream + 'static,
+{
+    type Response = Connection<R, AsyncTlsStream<IO>>;
+    type Error = io::Error;
+    type Config = ();
+    type Service = TlsConnectorService;
+    type InitError = ();
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        ok(TlsConnectorService {
+            connector: self.connector.clone(),
+        })
+    }
+}
+
+/// Connector service using `rustls`.
+#[derive(Clone)]
+pub struct TlsConnectorService {
+    connector: Arc<ClientConfig>,
+}
+
+impl<R, IO> Service<Connection<R, IO>> for TlsConnectorService
+where
+    R: Host,
+    IO: ActixStream,
+{
+    type Response = Connection<R, AsyncTlsStream<IO>>;
+    type Error = io::Error;
+    type Future = ConnectFut<R, IO>;
+
+    actix_service::always_ready!();
+
+    fn call(&self, connection: Connection<R, IO>) -> Self::Future {
+        trace!("TLS handshake start for: {:?}", connection.hostname());
+        let (stream, connection) = connection.replace_io(());
+
+        match ServerName::try_from(connection.hostname()) {
+            Ok(host) => ConnectFut::Future {
+                connect: RustlsTlsConnector::from(self.connector.clone()).connect(host, stream),
+                connection: Some(connection),
+            },
+            Err(_) => ConnectFut::InvalidDns,
+        }
+    }
+}
+
+/// Connect future for Rustls service.
+#[doc(hidden)]
+pub enum ConnectFut<R, IO> {
+    /// See issue <https://github.com/briansmith/webpki/issues/54>
+    InvalidDns,
+    Future {
+        connect: RustlsConnect<IO>,
+        connection: Option<Connection<R, ()>>,
+    },
+}
+
+impl<R, IO> Future for ConnectFut<R, IO>
+where
+    R: Host,
+    IO: ActixStream,
+{
+    type Output = Result<Connection<R, AsyncTlsStream<IO>>, io::Error>;
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        match self.get_mut() {
+            Self::InvalidDns => Poll::Ready(Err(
+                io::Error::new(io::ErrorKind::Other, "rustls currently only handles hostname-based connections. See https://github.com/briansmith/webpki/issues/54")
+            )),
+            Self::Future { connect, connection } => {
+                let stream = ready!(Pin::new(connect).poll(cx))?;
+                let connection = connection.take().unwrap();
+                trace!("TLS handshake success: {:?}", connection.hostname());
+                Poll::Ready(Ok(connection.replace_io(stream).1))
+            }
+        }
+    }
+}

actix-tls/src/connect/service.rs

@@ -1,129 +0,0 @@
-use std::{
-    future::Future,
-    pin::Pin,
-    task::{Context, Poll},
-};
-
-use actix_rt::net::TcpStream;
-use actix_service::{Service, ServiceFactory};
-use futures_core::{future::LocalBoxFuture, ready};
-
-use super::connect::{Address, Connect, Connection};
-use super::connector::{TcpConnector, TcpConnectorFactory};
-use super::error::ConnectError;
-use super::resolve::{Resolver, ResolverFactory};
-
-pub struct ConnectServiceFactory {
-    tcp: TcpConnectorFactory,
-    resolver: ResolverFactory,
-}
-
-impl ConnectServiceFactory {
-    /// Construct new ConnectService factory
-    pub fn new(resolver: Resolver) -> Self {
-        ConnectServiceFactory {
-            tcp: TcpConnectorFactory,
-            resolver: ResolverFactory::new(resolver),
-        }
-    }
-
-    /// Construct new service
-    pub fn service(&self) -> ConnectService {
-        ConnectService {
-            tcp: self.tcp.service(),
-            resolver: self.resolver.service(),
-        }
-    }
-}
-
-impl Clone for ConnectServiceFactory {
-    fn clone(&self) -> Self {
-        ConnectServiceFactory {
-            tcp: self.tcp,
-            resolver: self.resolver.clone(),
-        }
-    }
-}
-
-impl<T: Address> ServiceFactory<Connect<T>> for ConnectServiceFactory {
-    type Response = Connection<T, TcpStream>;
-    type Error = ConnectError;
-    type Config = ();
-    type Service = ConnectService;
-    type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
-
-    fn new_service(&self, _: ()) -> Self::Future {
-        let service = self.service();
-        Box::pin(async { Ok(service) })
-    }
-}
-
-#[derive(Clone)]
-pub struct ConnectService {
-    tcp: TcpConnector,
-    resolver: Resolver,
-}
-
-impl<T: Address> Service<Connect<T>> for ConnectService {
-    type Response = Connection<T, TcpStream>;
-    type Error = ConnectError;
-    type Future = ConnectServiceResponse<T>;
-
-    actix_service::always_ready!();
-
-    fn call(&self, req: Connect<T>) -> Self::Future {
-        ConnectServiceResponse {
-            fut: ConnectFuture::Resolve(self.resolver.call(req)),
-            tcp: self.tcp,
-        }
-    }
-}
-
-// helper enum to generic over futures of resolve and connect phase.
-pub(crate) enum ConnectFuture<T: Address> {
-    Resolve(<Resolver as Service<Connect<T>>>::Future),
-    Connect(<TcpConnector as Service<Connect<T>>>::Future),
-}
-
-// helper enum to contain the future output of ConnectFuture
-pub(crate) enum ConnectOutput<T: Address> {
-    Resolved(Connect<T>),
-    Connected(Connection<T, TcpStream>),
-}
-
-impl<T: Address> ConnectFuture<T> {
-    fn poll_connect(
-        &mut self,
-        cx: &mut Context<'_>,
-    ) -> Poll<Result<ConnectOutput<T>, ConnectError>> {
-        match self {
-            ConnectFuture::Resolve(ref mut fut) => {
-                Pin::new(fut).poll(cx).map_ok(ConnectOutput::Resolved)
-            }
-            ConnectFuture::Connect(ref mut fut) => {
-                Pin::new(fut).poll(cx).map_ok(ConnectOutput::Connected)
-            }
-        }
-    }
-}
-
-pub struct ConnectServiceResponse<T: Address> {
-    fut: ConnectFuture<T>,
-    tcp: TcpConnector,
-}
-
-impl<T: Address> Future for ConnectServiceResponse<T> {
-    type Output = Result<Connection<T, TcpStream>, ConnectError>;
-
-    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        loop {
-            match ready!(self.fut.poll_connect(cx))? {
-                ConnectOutput::Resolved(res) => {
-                    self.fut = ConnectFuture::Connect(self.tcp.call(res));
-                }
-                ConnectOutput::Connected(res) => return Poll::Ready(Ok(res)),
-            }
-        }
-    }
-}

actix-tls/src/connect/tcp.rs

@@ -0,0 +1,204 @@
+//! TCP connector service.
+//!
+//! See [`TcpConnector`] for main connector service factory docs.
+
+use std::{
+    collections::VecDeque,
+    future::Future,
+    io,
+    net::{IpAddr, SocketAddr, SocketAddrV4, SocketAddrV6},
+    pin::Pin,
+    task::{Context, Poll},
+};
+
+use actix_rt::net::{TcpSocket, TcpStream};
+use actix_service::{Service, ServiceFactory};
+use actix_utils::future::{ok, Ready};
+use futures_core::ready;
+use tokio_util::sync::ReusableBoxFuture;
+use tracing::{error, trace};
+
+use super::{connect_addrs::ConnectAddrs, error::ConnectError, ConnectInfo, Connection, Host};
+
+/// TCP connector service factory.
+#[derive(Debug, Clone, Copy, Default)]
+#[non_exhaustive]
+pub struct TcpConnector;
+
+impl TcpConnector {
+    /// Returns a new TCP connector service.
+    pub fn service(&self) -> TcpConnectorService {
+        TcpConnectorService::default()
+    }
+}
+
+impl<R: Host> ServiceFactory<ConnectInfo<R>> for TcpConnector {
+    type Response = Connection<R, TcpStream>;
+    type Error = ConnectError;
+    type Config = ();
+    type Service = TcpConnectorService;
+    type InitError = ();
+    type Future = Ready<Result<Self::Service, Self::InitError>>;
+
+    fn new_service(&self, _: ()) -> Self::Future {
+        ok(self.service())
+    }
+}
+
+/// TCP connector service.
+#[derive(Debug, Copy, Clone, Default)]
+#[non_exhaustive]
+pub struct TcpConnectorService;
+
+impl<R: Host> Service<ConnectInfo<R>> for TcpConnectorService {
+    type Response = Connection<R, TcpStream>;
+    type Error = ConnectError;
+    type Future = TcpConnectorFut<R>;
+
+    actix_service::always_ready!();
+
+    fn call(&self, req: ConnectInfo<R>) -> Self::Future {
+        let port = req.port();
+
+        let ConnectInfo {
+            request: req,
+            addr,
+            local_addr,
+            ..
+        } = req;
+
+        TcpConnectorFut::new(req, port, local_addr, addr)
+    }
+}
+
+/// Connect future for TCP service.
+#[doc(hidden)]
+pub enum TcpConnectorFut<R> {
+    Response {
+        req: Option<R>,
+        port: u16,
+        local_addr: Option<IpAddr>,
+        addrs: Option<VecDeque<SocketAddr>>,
+        stream: ReusableBoxFuture<'static, Result<TcpStream, io::Error>>,
+    },
+
+    Error(Option<ConnectError>),
+}
+
+impl<R: Host> TcpConnectorFut<R> {
+    pub(crate) fn new(
+        req: R,
+        port: u16,
+        local_addr: Option<IpAddr>,
+        addr: ConnectAddrs,
+    ) -> TcpConnectorFut<R> {
+        if addr.is_unresolved() {
+            error!("TCP connector: unresolved connection address");
+            return TcpConnectorFut::Error(Some(ConnectError::Unresolved));
+        }
+
+        trace!(
+            "TCP connector: connecting to {} on port {}",
+            req.hostname(),
+            port
+        );
+
+        match addr {
+            ConnectAddrs::None => unreachable!("none variant already checked"),
+
+            ConnectAddrs::One(addr) => TcpConnectorFut::Response {
+                req: Some(req),
+                port,
+                local_addr,
+                addrs: None,
+                stream: ReusableBoxFuture::new(connect(addr, local_addr)),
+            },
+
+            // When resolver returns multiple socket addr for request they would be popped from
+            // front end of queue and returns with the first successful TCP connection.
+            ConnectAddrs::Multi(mut addrs) => {
+                let addr = addrs.pop_front().unwrap();
+
+                TcpConnectorFut::Response {
+                    req: Some(req),
+                    port,
+                    local_addr,
+                    addrs: Some(addrs),
+                    stream: ReusableBoxFuture::new(connect(addr, local_addr)),
+                }
+            }
+        }
+    }
+}
+
+impl<R: Host> Future for TcpConnectorFut<R> {
+    type Output = Result<Connection<R, TcpStream>, ConnectError>;
+
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        match self.get_mut() {
+            TcpConnectorFut::Error(err) => Poll::Ready(Err(err.take().unwrap())),
+
+            TcpConnectorFut::Response {
+                req,
+                port,
+                local_addr,
+                addrs,
+                stream,
+            } => loop {
+                match ready!(stream.poll(cx)) {
+                    Ok(sock) => {
+                        let req = req.take().unwrap();
+
+                        trace!(
+                            "TCP connector: successfully connected to {:?} - {:?}",
+                            req.hostname(),
+                            sock.peer_addr()
+                        );
+
+                        return Poll::Ready(Ok(Connection::new(req, sock)));
+                    }
+
+                    Err(err) => {
+                        trace!(
+                            "TCP connector: failed to connect to {:?} port: {}",
+                            req.as_ref().unwrap().hostname(),
+                            port,
+                        );
+
+                        if let Some(addr) = addrs.as_mut().and_then(|addrs| addrs.pop_front()) {
+                            stream.set(connect(addr, *local_addr));
+                        } else {
+                            return Poll::Ready(Err(ConnectError::Io(err)));
+                        }
+                    }
+                }
+            },
+        }
+    }
+}
+
+async fn connect(addr: SocketAddr, local_addr: Option<IpAddr>) -> io::Result<TcpStream> {
+    // use local addr if connect asks for it
+    match local_addr {
+        Some(ip_addr) => {
+            let socket = match ip_addr {
+                IpAddr::V4(ip_addr) => {
+                    let socket = TcpSocket::new_v4()?;
+                    let addr = SocketAddr::V4(SocketAddrV4::new(ip_addr, 0));
+                    socket.bind(addr)?;
+                    socket
+                }
+                IpAddr::V6(ip_addr) => {
+                    let socket = TcpSocket::new_v6()?;
+                    let addr = SocketAddr::V6(SocketAddrV6::new(ip_addr, 0, 0, 0));
+                    socket.bind(addr)?;
+                    socket
+                }
+            };
+
+            socket.connect(addr).await
+        }
+
+        None => TcpStream::connect(addr).await,
+    }
+}

actix-tls/src/connect/tls/mod.rs

@@ -1,10 +0,0 @@
-//! TLS Services
-
-#[cfg(feature = "openssl")]
-pub mod openssl;
-
-#[cfg(feature = "rustls")]
-pub mod rustls;
-
-#[cfg(feature = "native-tls")]
-pub mod native_tls;

actix-tls/src/connect/tls/native_tls.rs

@@ -1,88 +0,0 @@
-use std::io;
-
-use actix_rt::net::ActixStream;
-use actix_service::{Service, ServiceFactory};
-use futures_core::future::LocalBoxFuture;
-use log::trace;
-use tokio_native_tls::{TlsConnector as TokioNativetlsConnector, TlsStream};
-
-pub use tokio_native_tls::native_tls::TlsConnector;
-
-use crate::connect::{Address, Connection};
-
-/// Native-tls connector factory and service
-pub struct NativetlsConnector {
-    connector: TokioNativetlsConnector,
-}
-
-impl NativetlsConnector {
-    pub fn new(connector: TlsConnector) -> Self {
-        Self {
-            connector: TokioNativetlsConnector::from(connector),
-        }
-    }
-}
-
-impl NativetlsConnector {
-    pub fn service(connector: TlsConnector) -> Self {
-        Self::new(connector)
-    }
-}
-
-impl Clone for NativetlsConnector {
-    fn clone(&self) -> Self {
-        Self {
-            connector: self.connector.clone(),
-        }
-    }
-}
-
-impl<T: Address, U> ServiceFactory<Connection<T, U>> for NativetlsConnector
-where
-    U: ActixStream + 'static,
-{
-    type Response = Connection<T, TlsStream<U>>;
-    type Error = io::Error;
-    type Config = ();
-    type Service = Self;
-    type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
-
-    fn new_service(&self, _: ()) -> Self::Future {
-        let connector = self.clone();
-        Box::pin(async { Ok(connector) })
-    }
-}
-
-// NativetlsConnector is both it's ServiceFactory and Service impl type.
-// As the factory and service share the same type and state.
-impl<T, U> Service<Connection<T, U>> for NativetlsConnector
-where
-    T: Address,
-    U: ActixStream + 'static,
-{
-    type Response = Connection<T, TlsStream<U>>;
-    type Error = io::Error;
-    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
-
-    actix_service::always_ready!();
-
-    fn call(&self, stream: Connection<T, U>) -> Self::Future {
-        let (io, stream) = stream.replace_io(());
-        let connector = self.connector.clone();
-        Box::pin(async move {
-            trace!("SSL Handshake start for: {:?}", stream.host());
-            connector
-                .connect(stream.host(), io)
-                .await
-                .map(|res| {
-                    trace!("SSL Handshake success: {:?}", stream.host());
-                    stream.replace_io(res).1
-                })
-                .map_err(|e| {
-                    trace!("SSL Handshake error: {:?}", e);
-                    io::Error::new(io::ErrorKind::Other, format!("{}", e))
-                })
-        })
-    }
-}

actix-tls/src/connect/tls/openssl.rs

@@ -1,130 +0,0 @@
-use std::{
-    future::Future,
-    io,
-    pin::Pin,
-    task::{Context, Poll},
-};
-
-use actix_rt::net::ActixStream;
-use actix_service::{Service, ServiceFactory};
-use futures_core::{future::LocalBoxFuture, ready};
-use log::trace;
-
-pub use openssl::ssl::{Error as SslError, HandshakeError, SslConnector, SslMethod};
-pub use tokio_openssl::SslStream;
-
-use crate::connect::{Address, Connection};
-
-/// OpenSSL connector factory
-pub struct OpensslConnector {
-    connector: SslConnector,
-}
-
-impl OpensslConnector {
-    pub fn new(connector: SslConnector) -> Self {
-        OpensslConnector { connector }
-    }
-
-    pub fn service(connector: SslConnector) -> OpensslConnectorService {
-        OpensslConnectorService { connector }
-    }
-}
-
-impl Clone for OpensslConnector {
-    fn clone(&self) -> Self {
-        Self {
-            connector: self.connector.clone(),
-        }
-    }
-}
-
-impl<T, U> ServiceFactory<Connection<T, U>> for OpensslConnector
-where
-    T: Address,
-    U: ActixStream + 'static,
-{
-    type Response = Connection<T, SslStream<U>>;
-    type Error = io::Error;
-    type Config = ();
-    type Service = OpensslConnectorService;
-    type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
-
-    fn new_service(&self, _: ()) -> Self::Future {
-        let connector = self.connector.clone();
-        Box::pin(async { Ok(OpensslConnectorService { connector }) })
-    }
-}
-
-pub struct OpensslConnectorService {
-    connector: SslConnector,
-}
-
-impl Clone for OpensslConnectorService {
-    fn clone(&self) -> Self {
-        Self {
-            connector: self.connector.clone(),
-        }
-    }
-}
-
-impl<T, U> Service<Connection<T, U>> for OpensslConnectorService
-where
-    T: Address,
-    U: ActixStream,
-{
-    type Response = Connection<T, SslStream<U>>;
-    type Error = io::Error;
-    type Future = ConnectAsyncExt<T, U>;
-
-    actix_service::always_ready!();
-
-    fn call(&self, stream: Connection<T, U>) -> Self::Future {
-        trace!("SSL Handshake start for: {:?}", stream.host());
-        let (io, stream) = stream.replace_io(());
-        let host = stream.host();
-
-        let config = self
-            .connector
-            .configure()
-            .expect("SSL connect configuration was invalid.");
-
-        let ssl = config
-            .into_ssl(host)
-            .expect("SSL connect configuration was invalid.");
-
-        ConnectAsyncExt {
-            io: Some(SslStream::new(ssl, io).unwrap()),
-            stream: Some(stream),
-        }
-    }
-}
-
-pub struct ConnectAsyncExt<T, U> {
-    io: Option<SslStream<U>>,
-    stream: Option<Connection<T, ()>>,
-}
-
-impl<T: Address, U> Future for ConnectAsyncExt<T, U>
-where
-    T: Address,
-    U: ActixStream,
-{
-    type Output = Result<Connection<T, SslStream<U>>, io::Error>;
-
-    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        let this = self.get_mut();
-
-        match ready!(Pin::new(this.io.as_mut().unwrap()).poll_connect(cx)) {
-            Ok(_) => {
-                let stream = this.stream.take().unwrap();
-                trace!("SSL Handshake success: {:?}", stream.host());
-                Poll::Ready(Ok(stream.replace_io(this.io.take().unwrap()).1))
-            }
-            Err(e) => {
-                trace!("SSL Handshake error: {:?}", e);
-                Poll::Ready(Err(io::Error::new(io::ErrorKind::Other, format!("{}", e))))
-            }
-        }
-    }
-}

actix-tls/src/connect/tls/rustls.rs

@@ -1,146 +0,0 @@
-use std::{
-    convert::TryFrom,
-    future::Future,
-    io,
-    pin::Pin,
-    sync::Arc,
-    task::{Context, Poll},
-};
-
-pub use tokio_rustls::{client::TlsStream, rustls::ClientConfig};
-pub use webpki_roots::TLS_SERVER_ROOTS;
-
-use actix_rt::net::ActixStream;
-use actix_service::{Service, ServiceFactory};
-use futures_core::{future::LocalBoxFuture, ready};
-use log::trace;
-use tokio_rustls::rustls::{client::ServerName, OwnedTrustAnchor, RootCertStore};
-use tokio_rustls::{Connect, TlsConnector};
-
-use crate::connect::{Address, Connection};
-
-/// Returns standard root certificates from `webpki-roots` crate as a rustls certificate store.
-pub fn webpki_roots_cert_store() -> RootCertStore {
-    let mut root_certs = RootCertStore::empty();
-    for cert in TLS_SERVER_ROOTS.0 {
-        let cert = OwnedTrustAnchor::from_subject_spki_name_constraints(
-            cert.subject,
-            cert.spki,
-            cert.name_constraints,
-        );
-        let certs = vec![cert].into_iter();
-        root_certs.add_server_trust_anchors(certs);
-    }
-    root_certs
-}
-
-/// Rustls connector factory
-pub struct RustlsConnector {
-    connector: Arc<ClientConfig>,
-}
-
-impl RustlsConnector {
-    pub fn new(connector: Arc<ClientConfig>) -> Self {
-        RustlsConnector { connector }
-    }
-}
-
-impl RustlsConnector {
-    pub fn service(connector: Arc<ClientConfig>) -> RustlsConnectorService {
-        RustlsConnectorService { connector }
-    }
-}
-
-impl Clone for RustlsConnector {
-    fn clone(&self) -> Self {
-        Self {
-            connector: self.connector.clone(),
-        }
-    }
-}
-
-impl<T, U> ServiceFactory<Connection<T, U>> for RustlsConnector
-where
-    T: Address,
-    U: ActixStream + 'static,
-{
-    type Response = Connection<T, TlsStream<U>>;
-    type Error = io::Error;
-    type Config = ();
-    type Service = RustlsConnectorService;
-    type InitError = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::InitError>>;
-
-    fn new_service(&self, _: ()) -> Self::Future {
-        let connector = self.connector.clone();
-        Box::pin(async { Ok(RustlsConnectorService { connector }) })
-    }
-}
-
-pub struct RustlsConnectorService {
-    connector: Arc<ClientConfig>,
-}
-
-impl Clone for RustlsConnectorService {
-    fn clone(&self) -> Self {
-        Self {
-            connector: self.connector.clone(),
-        }
-    }
-}
-
-impl<T, U> Service<Connection<T, U>> for RustlsConnectorService
-where
-    T: Address,
-    U: ActixStream,
-{
-    type Response = Connection<T, TlsStream<U>>;
-    type Error = io::Error;
-    type Future = RustlsConnectorServiceFuture<T, U>;
-
-    actix_service::always_ready!();
-
-    fn call(&self, connection: Connection<T, U>) -> Self::Future {
-        trace!("SSL Handshake start for: {:?}", connection.host());
-        let (stream, connection) = connection.replace_io(());
-
-        match ServerName::try_from(connection.host()) {
-            Ok(host) => RustlsConnectorServiceFuture::Future {
-                connect: TlsConnector::from(self.connector.clone()).connect(host, stream),
-                connection: Some(connection),
-            },
-            Err(_) => RustlsConnectorServiceFuture::InvalidDns,
-        }
-    }
-}
-
-pub enum RustlsConnectorServiceFuture<T, U> {
-    /// See issue <https://github.com/briansmith/webpki/issues/54>
-    InvalidDns,
-    Future {
-        connect: Connect<U>,
-        connection: Option<Connection<T, ()>>,
-    },
-}
-
-impl<T, U> Future for RustlsConnectorServiceFuture<T, U>
-where
-    T: Address,
-    U: ActixStream,
-{
-    type Output = Result<Connection<T, TlsStream<U>>, io::Error>;
-
-    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        match self.get_mut() {
-            Self::InvalidDns => Poll::Ready(Err(
-                io::Error::new(io::ErrorKind::Other, "rustls currently only handles hostname-based connections. See https://github.com/briansmith/webpki/issues/54")
-            )),
-            Self::Future { connect, connection } => {
-                let stream = ready!(Pin::new(connect).poll(cx))?;
-                let connection = connection.take().unwrap();
-                trace!("SSL Handshake success: {:?}", connection.host());
-                Poll::Ready(Ok(connection.replace_io(stream).1))
-            }
-        }
-    }
-}

actix-tls/src/connect/uri.rs

@@ -1,8 +1,8 @@
 use http::Uri;
 
-use super::Address;
+use super::Host;
 
-impl Address for Uri {
+impl Host for Uri {
     fn hostname(&self) -> &str {
         self.host().unwrap_or("")
     }
@@ -35,9 +35,18 @@ fn scheme_to_port(scheme: Option<&str>) -> Option<u16> {
         Some("mqtts") => Some(8883),
 
         // File Transfer Protocol (FTP)
-        Some("ftp") => Some(1883),
+        Some("ftp") => Some(21),
         Some("ftps") => Some(990),
 
+        // Redis
+        Some("redis") => Some(6379),
+
+        // MySQL
+        Some("mysql") => Some(3306),
+
+        // PostgreSQL
+        Some("postgres") => Some(5432),
+
         _ => None,
     }
 }

actix-tls/src/lib.rs

@@ -1,14 +1,20 @@
-//! TLS acceptor and connector services for Actix ecosystem
+//! TLS acceptor and connector services for the Actix ecosystem.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible, missing_docs)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
+// enable unstable doc_cfg feature only on on docs.rs where nightly compiler is used
+#![cfg_attr(docsrs, feature(doc_cfg))]
 
 #[cfg(feature = "openssl")]
 #[allow(unused_extern_crates)]
 extern crate tls_openssl as openssl;
 
 #[cfg(feature = "accept")]
+#[cfg_attr(docsrs, doc(cfg(feature = "accept")))]
 pub mod accept;
+
 #[cfg(feature = "connect")]
+#[cfg_attr(docsrs, doc(cfg(feature = "connect")))]
 pub mod connect;

actix-tls/tests/accept-openssl.rs

@@ -51,13 +51,13 @@ fn openssl_acceptor(cert: String, key: String) -> tls_openssl::ssl::SslAcceptor
 mod danger {
     use std::time::SystemTime;
 
-    use super::*;
-
     use tokio_rustls::rustls::{
         self,
         client::{ServerCertVerified, ServerCertVerifier},
     };
 
+    use super::*;
+
     pub struct NoCertificateVerification;
 
     impl ServerCertVerifier for NoCertificateVerification {
@@ -94,7 +94,7 @@ fn rustls_connector(_cert: String, _key: String) -> ClientConfig {
 async fn accepts_connections() {
     let (cert, key) = new_cert_and_key();
 
-    let srv = TestServer::with({
+    let srv = TestServer::start({
         let cert = cert.clone();
         let key = key.clone();
 

actix-tls/tests/accept-rustls.rs

@@ -7,13 +7,15 @@
     feature = "openssl"
 ))]
 
+extern crate tls_openssl as openssl;
+
 use std::io::{BufReader, Write};
 
 use actix_rt::net::TcpStream;
 use actix_server::TestServer;
 use actix_service::ServiceFactoryExt as _;
 use actix_tls::accept::rustls::{Acceptor, TlsStream};
-use actix_tls::connect::tls::openssl::SslConnector;
+use actix_tls::connect::openssl::reexports::SslConnector;
 use actix_utils::future::ok;
 use rustls_pemfile::{certs, pkcs8_private_keys};
 use tls_openssl::ssl::SslVerifyMode;
@@ -53,13 +55,13 @@ fn rustls_server_config(cert: String, key: String) -> rustls::ServerConfig {
 }
 
 fn openssl_connector(cert: String, key: String) -> SslConnector {
-    use actix_tls::connect::tls::openssl::{SslConnector as OpensslConnector, SslMethod};
-    use tls_openssl::{pkey::PKey, x509::X509};
+    use actix_tls::connect::openssl::reexports::SslMethod;
+    use openssl::{pkey::PKey, x509::X509};
 
     let cert = X509::from_pem(cert.as_bytes()).unwrap();
     let key = PKey::private_key_from_pem(key.as_bytes()).unwrap();
 
-    let mut ssl = OpensslConnector::builder(SslMethod::tls()).unwrap();
+    let mut ssl = SslConnector::builder(SslMethod::tls()).unwrap();
     ssl.set_verify(SslVerifyMode::NONE);
     ssl.set_certificate(&cert).unwrap();
     ssl.set_private_key(&key).unwrap();
@@ -72,7 +74,7 @@ fn openssl_connector(cert: String, key: String) -> SslConnector {
 async fn accepts_connections() {
     let (cert, key) = new_cert_and_key();
 
-    let srv = TestServer::with({
+    let srv = TestServer::start({
         let cert = cert.clone();
         let key = key.clone();
 

actix-tls/tests/test_connect.rs

@@ -9,15 +9,14 @@ use actix_codec::{BytesCodec, Framed};
 use actix_rt::net::TcpStream;
 use actix_server::TestServer;
 use actix_service::{fn_service, Service, ServiceFactory};
+use actix_tls::connect::{ConnectError, ConnectInfo, Connection, Connector, Host};
 use bytes::Bytes;
 use futures_util::sink::SinkExt;
 
-use actix_tls::connect::{self as actix_connect, Connect};
-
 #[cfg(feature = "openssl")]
 #[actix_rt::test]
 async fn test_string() {
-    let srv = TestServer::with(|| {
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -25,16 +24,16 @@ async fn test_string() {
         })
     });
 
-    let conn = actix_connect::default_connector();
+    let connector = Connector::default().service();
     let addr = format!("localhost:{}", srv.port());
-    let con = conn.call(addr.into()).await.unwrap();
+    let con = connector.call(addr.into()).await.unwrap();
     assert_eq!(con.peer_addr().unwrap(), srv.addr());
 }
 
 #[cfg(feature = "rustls")]
 #[actix_rt::test]
 async fn test_rustls_string() {
-    let srv = TestServer::with(|| {
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -42,7 +41,7 @@ async fn test_rustls_string() {
         })
     });
 
-    let conn = actix_connect::default_connector();
+    let conn = Connector::default().service();
     let addr = format!("localhost:{}", srv.port());
     let con = conn.call(addr.into()).await.unwrap();
     assert_eq!(con.peer_addr().unwrap(), srv.addr());
@@ -50,7 +49,7 @@ async fn test_rustls_string() {
 
 #[actix_rt::test]
 async fn test_static_str() {
-    let srv = TestServer::with(|| {
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -58,24 +57,30 @@ async fn test_static_str() {
         })
     });
 
-    let conn = actix_connect::default_connector();
+    let info = ConnectInfo::with_addr("10", srv.addr());
+    let connector = Connector::default().service();
+    let conn = connector.call(info).await.unwrap();
+    assert_eq!(conn.peer_addr().unwrap(), srv.addr());
 
-    let con = conn
-        .call(Connect::with_addr("10", srv.addr()))
-        .await
-        .unwrap();
-    assert_eq!(con.peer_addr().unwrap(), srv.addr());
-
-    let connect = Connect::new(srv.host().to_owned());
-
-    let conn = actix_connect::default_connector();
-    let con = conn.call(connect).await;
-    assert!(con.is_err());
+    let info = ConnectInfo::new(srv.host().to_owned());
+    let connector = Connector::default().service();
+    let conn = connector.call(info).await;
+    assert!(conn.is_err());
 }
 
 #[actix_rt::test]
-async fn test_new_service() {
-    let srv = TestServer::with(|| {
+async fn service_factory() {
+    pub fn default_connector_factory<T: Host + 'static>() -> impl ServiceFactory<
+        ConnectInfo<T>,
+        Config = (),
+        Response = Connection<T, TcpStream>,
+        Error = ConnectError,
+        InitError = (),
+    > {
+        Connector::default()
+    }
+
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -83,14 +88,11 @@ async fn test_new_service() {
         })
     });
 
-    let factory = actix_connect::default_connector_factory();
-
-    let conn = factory.new_service(()).await.unwrap();
-    let con = conn
-        .call(Connect::with_addr("10", srv.addr()))
-        .await
-        .unwrap();
-    assert_eq!(con.peer_addr().unwrap(), srv.addr());
+    let info = ConnectInfo::with_addr("10", srv.addr());
+    let factory = default_connector_factory();
+    let connector = factory.new_service(()).await.unwrap();
+    let con = connector.call(info).await;
+    assert_eq!(con.unwrap().peer_addr().unwrap(), srv.addr());
 }
 
 #[cfg(all(feature = "openssl", feature = "uri"))]
@@ -98,7 +100,7 @@ async fn test_new_service() {
 async fn test_openssl_uri() {
     use std::convert::TryFrom;
 
-    let srv = TestServer::with(|| {
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -106,9 +108,9 @@ async fn test_openssl_uri() {
         })
     });
 
-    let conn = actix_connect::default_connector();
+    let connector = Connector::default().service();
     let addr = http::Uri::try_from(format!("https://localhost:{}", srv.port())).unwrap();
-    let con = conn.call(addr.into()).await.unwrap();
+    let con = connector.call(addr.into()).await.unwrap();
     assert_eq!(con.peer_addr().unwrap(), srv.addr());
 }
 
@@ -117,7 +119,7 @@ async fn test_openssl_uri() {
 async fn test_rustls_uri() {
     use std::convert::TryFrom;
 
-    let srv = TestServer::with(|| {
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -125,7 +127,7 @@ async fn test_rustls_uri() {
         })
     });
 
-    let conn = actix_connect::default_connector();
+    let conn = Connector::default().service();
     let addr = http::Uri::try_from(format!("https://localhost:{}", srv.port())).unwrap();
     let con = conn.call(addr.into()).await.unwrap();
     assert_eq!(con.peer_addr().unwrap(), srv.addr());
@@ -133,7 +135,7 @@ async fn test_rustls_uri() {
 
 #[actix_rt::test]
 async fn test_local_addr() {
-    let srv = TestServer::with(|| {
+    let srv = TestServer::start(|| {
         fn_service(|io: TcpStream| async {
             let mut framed = Framed::new(io, BytesCodec);
             framed.send(Bytes::from_static(b"test")).await?;
@@ -141,11 +143,14 @@ async fn test_local_addr() {
         })
     });
 
-    let conn = actix_connect::default_connector();
+    // if you've arrived here because of a failing test on macOS run this in your terminal:
+    // sudo ifconfig lo0 alias 127.0.0.3
+
+    let conn = Connector::default().service();
     let local = IpAddr::V4(Ipv4Addr::new(127, 0, 0, 3));
 
     let (con, _) = conn
-        .call(Connect::with_addr("10", srv.addr()).set_local_addr(local))
+        .call(ConnectInfo::with_addr("10", srv.addr()).set_local_addr(local))
         .await
         .unwrap()
         .into_parts();

actix-tls/tests/test_resolvers.rs

@@ -8,10 +8,11 @@ use std::{
 use actix_rt::net::TcpStream;
 use actix_server::TestServer;
 use actix_service::{fn_service, Service, ServiceFactory};
+use actix_tls::connect::{
+    ConnectError, ConnectInfo, Connection, Connector, Host, Resolve, Resolver,
+};
 use futures_core::future::LocalBoxFuture;
 
-use actix_tls::connect::{new_connector_factory, Connect, Resolve, Resolver};
-
 #[actix_rt::test]
 async fn custom_resolver() {
     /// Always resolves to localhost with the given port.
@@ -36,10 +37,22 @@ async fn custom_resolver() {
 
 #[actix_rt::test]
 async fn custom_resolver_connect() {
+    pub fn connector_factory<T: Host + 'static>(
+        resolver: Resolver,
+    ) -> impl ServiceFactory<
+        ConnectInfo<T>,
+        Config = (),
+        Response = Connection<T, TcpStream>,
+        Error = ConnectError,
+        InitError = (),
+    > {
+        Connector::new(resolver)
+    }
+
     use trust_dns_resolver::TokioAsyncResolver;
 
     let srv =
-        TestServer::with(|| fn_service(|_io: TcpStream| async { Ok::<_, io::Error>(()) }));
+        TestServer::start(|| fn_service(|_io: TcpStream| async { Ok::<_, io::Error>(()) }));
 
     struct MyResolver {
         trust_dns: TokioAsyncResolver,
@@ -68,12 +81,11 @@ async fn custom_resolver_connect() {
         trust_dns: TokioAsyncResolver::tokio_from_system_conf().unwrap(),
     };
 
-    let resolver = Resolver::new_custom(resolver);
-    let factory = new_connector_factory(resolver);
+    let factory = connector_factory(Resolver::custom(resolver));
 
     let conn = factory.new_service(()).await.unwrap();
     let con = conn
-        .call(Connect::with_addr("example.com", srv.addr()))
+        .call(ConnectInfo::with_addr("example.com", srv.addr()))
         .await
         .unwrap();
     assert_eq!(con.peer_addr().unwrap(), srv.addr());

actix-tracing/CHANGES.md

@@ -1,5 +1,8 @@
 # Changes
 
-## [0.1.0] - 2020-01-15
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
 
-* Initial release
+
+## 0.1.0 - 2020-01-15
+- Initial release

actix-tracing/Cargo.toml

@@ -16,12 +16,12 @@ name = "actix_tracing"
 path = "src/lib.rs"
 
 [dependencies]
-actix-service = "2.0.0"
-actix-utils = "3.0.0"
+actix-service = "2"
+actix-utils = "3"
 
-tracing = "0.1"
+tracing = "0.1.35"
 tracing-futures = "0.2"
 
 [dev_dependencies]
-actix-rt = "2.0.0"
+actix-rt = "2"
 slab = "0.4"

actix-tracing/src/lib.rs

@@ -1,6 +1,7 @@
 //! Actix tracing - support for tokio tracing with Actix services.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
+#![warn(future_incompatible)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 
@@ -117,8 +118,6 @@ where
 
 #[cfg(test)]
 mod test {
-    use super::*;
-
     use std::cell::RefCell;
     use std::collections::{BTreeMap, BTreeSet};
     use std::sync::{Arc, RwLock};
@@ -127,6 +126,8 @@ mod test {
     use slab::Slab;
     use tracing::{span, Event, Level, Metadata, Subscriber};
 
+    use super::*;
+
     thread_local! {
         static SPAN: RefCell<Vec<span::Id>> = RefCell::new(Vec::new());
     }

actix-utils/CHANGES.md

@@ -1,182 +1,186 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+
+
+## 3.0.1 - 2022-10-21
+- Minimum supported Rust version (MSRV) is now 1.57.
 
 
 ## 3.0.0 - 2021-04-16
-* No significant changes from `3.0.0-beta.4`.
+- No significant changes from `3.0.0-beta.4`.
 
 
 ## 3.0.0-beta.4 - 2021-04-01
-* Add `future::Either` type. [#305]
+- Add `future::Either` type. [#305]
 
 [#305]: https://github.com/actix/actix-net/pull/305
 
 
 ## 3.0.0-beta.3 - 2021-04-01
-* Moved `mpsc` to own crate `local-channel`. [#301]
-* Moved `task::LocalWaker` to own crate `local-waker`. [#301]
-* Remove `timeout` module. [#301]
-* Remove `dispatcher` module. [#301]
-* Expose `future` mod with `ready` and `poll_fn` helpers. [#301]
+- Moved `mpsc` to own crate `local-channel`. [#301]
+- Moved `task::LocalWaker` to own crate `local-waker`. [#301]
+- Remove `timeout` module. [#301]
+- Remove `dispatcher` module. [#301]
+- Expose `future` mod with `ready` and `poll_fn` helpers. [#301]
 
 [#301]: https://github.com/actix/actix-net/pull/301
 
 
 ## 3.0.0-beta.2 - 2021-02-06
-* Update `actix-rt` to `2.0.0`. [#273]
+- Update `actix-rt` to `2.0.0`. [#273]
 
 [#273]: https://github.com/actix/actix-net/pull/273
 
 
 ## 3.0.0-beta.1 - 2020-12-28
-* Update `bytes` dependency to `1`. [#237]
-* Use `pin-project-lite` to replace `pin-project`. [#229]
-* Remove `condition`,`either`,`inflight`,`keepalive`,`oneshot`,`order`,`stream` and `time` mods. [#229]
+- Update `bytes` dependency to `1`. [#237]
+- Use `pin-project-lite` to replace `pin-project`. [#229]
+- Remove `condition`,`either`,`inflight`,`keepalive`,`oneshot`,`order`,`stream` and `time` mods. [#229]
 
 [#229]: https://github.com/actix/actix-net/pull/229
 [#237]: https://github.com/actix/actix-net/pull/237
 
 
 ## 2.0.0 - 2020-08-23
-* No changes from beta 1.
+- No changes from beta 1.
 
 
 ## 2.0.0-beta.1 - 2020-08-19
-* Upgrade `tokio-util` to `0.3`.
-* Remove unsound custom Cell and use `std::cell::RefCell` instead, as well as `actix-service`.
-* Rename method to correctly spelled `LocalWaker::is_registered`.
+- Upgrade `tokio-util` to `0.3`.
+- Remove unsound custom Cell and use `std::cell::RefCell` instead, as well as `actix-service`.
+- Rename method to correctly spelled `LocalWaker::is_registered`.
 
 
 ## 1.0.6 - 2020-01-08
-* Add `Clone` impl for `condition::Waiter`.
+- Add `Clone` impl for `condition::Waiter`.
 
 
 ## 1.0.5 - 2020-01-08
-* Add `Condition` type.
-* Add `Pool` of one-shot's.
+- Add `Condition` type.
+- Add `Pool` of one-shot's.
 
 
 ## 1.0.4 - 2019-12-20
-* Add methods to check `LocalWaker` registration state.
+- Add methods to check `LocalWaker` registration state.
 
 
 ## 1.0.3 - 2019-12-11
-* Revert InOrder service changes
+- Revert InOrder service changes
 
 
 ## 1.0.2 - 2019-12-11
-* Allow to create `framed::Dispatcher` with custom `mpsc::Receiver`.
-* Add `oneshot::Sender::is_canceled()` method.
+- Allow to create `framed::Dispatcher` with custom `mpsc::Receiver`.
+- Add `oneshot::Sender::is_canceled()` method.
 
 
 ## 1.0.1 - 2019-12-11
-* Optimize InOrder service.
+- Optimize InOrder service.
 
 
 ## 1.0.0 - 2019-12-11
-* Simplify oneshot and mpsc implementations.
+- Simplify oneshot and mpsc implementations.
 
 
 ## 1.0.0-alpha.3 - 2019-12-07
-* Migrate to tokio 0.2.
-* Fix oneshot.
+- Migrate to tokio 0.2.
+- Fix oneshot.
 
 
 ## 1.0.0-alpha.2 - 2019-12-02
-* Migrate to `std::future`.
+- Migrate to `std::future`.
 
 
 ## 0.4.7 - 2019-10-14
-* Re-register task on every framed transport poll.
+- Re-register task on every framed transport poll.
 
 
 ## 0.4.6 - 2019-10-08
-* Refactor `Counter` type. register current task in available method.
+- Refactor `Counter` type. register current task in available method.
 
 
 ## 0.4.5 - 2019-07-19
-* Deprecated `CloneableService` as it is not safe.
+- Deprecated `CloneableService` as it is not safe.
 
 
 ## 0.4.4 - 2019-07-17
-* Undeprecate `FramedTransport` as it is actually useful.
+- Undeprecate `FramedTransport` as it is actually useful.
 
 
 ## 0.4.3 - 2019-07-17
-* Deprecate `CloneableService` as it is not safe and in general not very useful.
-* Deprecate `FramedTransport` in favor of `actix-ioframe`.
+- Deprecate `CloneableService` as it is not safe and in general not very useful.
+- Deprecate `FramedTransport` in favor of `actix-ioframe`.
 
 
 ## 0.4.2 - 2019-06-26
-* Do not block on sink drop for FramedTransport.
+- Do not block on sink drop for FramedTransport.
 
 
 ## 0.4.1 - 2019-05-15
-* Change `Either` constructor.
+- Change `Either` constructor.
 
 
 ## 0.4.0 - 2019-05-11
-* Change `Either` to handle two nexted services.
-* Upgrade actix-service 0.4.
-* Removed framed related services.
-* Removed stream related services.
+- Change `Either` to handle two nexted services.
+- Upgrade actix-service 0.4.
+- Removed framed related services.
+- Removed stream related services.
 
 
 ## 0.3.5 - 2019-04-04
-* Allow to send messages to `FramedTransport` via mpsc channel.
-* Remove `'static` constraint from Clonable service.
+- Allow to send messages to `FramedTransport` via mpsc channel.
+- Remove `'static` constraint from Clonable service.
 
 
 ## 0.3.4 - 2019-03-12
-* `TimeoutService`, `InOrderService`, `InFlightService` accepts generic IntoService services.
-* Fix `InFlightService::poll_ready()` nested service readiness check.
-* Fix `InOrderService::poll_ready()` nested service readiness check.
+- `TimeoutService`, `InOrderService`, `InFlightService` accepts generic IntoService services.
+- Fix `InFlightService::poll_ready()` nested service readiness check.
+- Fix `InOrderService::poll_ready()` nested service readiness check.
 
 
 ## 0.3.3 - 2019-03-09
-* Revert IntoFuture change.
-* Add generic config param for IntoFramed and TakeOne new services.
+- Revert IntoFuture change.
+- Add generic config param for IntoFramed and TakeOne new services.
 
 
 ## 0.3.2 - 2019-03-04
-* Use IntoFuture for new services.
+- Use IntoFuture for new services.
 
 ## 0.3.1 - 2019-03-04
-* Use new type of transform trait.
+- Use new type of transform trait.
 
 
 ## 0.3.0 - 2019-03-02
-* Use new `NewService` trait
-* BoxedNewService` and `BoxedService` types moved to actix-service crate.
+- Use new `NewService` trait
+- BoxedNewService` and `BoxedService` types moved to actix-service crate.
 
 
 ## 0.2.4 - 2019-02-21
-* Custom `BoxedNewService` implementation.
+- Custom `BoxedNewService` implementation.
 
 
 ## 0.2.3 - 2019-02-21
-* Add `BoxedNewService` and `BoxedService`.
+- Add `BoxedNewService` and `BoxedService`.
 
 
 ## 0.2.2 - 2019-02-11
-* Add `Display` impl for `TimeoutError`.
-* Add `Display` impl for `InOrderError`.
+- Add `Display` impl for `TimeoutError`.
+- Add `Display` impl for `InOrderError`.
 
 
 ## 0.2.1 - 2019-02-06
-* Add `InOrder` service. the service yields responses as they become available,
+- Add `InOrder` service. the service yields responses as they become available,
   in the order that their originating requests were submitted to the service.
-* Convert `Timeout` and `InFlight` services to a transforms.
+- Convert `Timeout` and `InFlight` services to a transforms.
 
 
 ## 0.2.0 - 2019-02-01
-* Fix framed transport error handling.
-* Added Clone impl for Either service.
-* Added Clone impl for Timeout service factory.
-* Added Service and NewService for Stream dispatcher.
-* Switch to actix-service 0.2.
+- Fix framed transport error handling.
+- Added Clone impl for Either service.
+- Added Clone impl for Timeout service factory.
+- Added Service and NewService for Stream dispatcher.
+- Switch to actix-service 0.2.
 
 
 ## 0.1.0 - 2018-12-09
-* Move utils services to separate crate.
+- Move utils services to separate crate.

actix-utils/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "actix-utils"
-version = "3.0.0"
+version = "3.0.1"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",

actix-utils/src/counter.rs

@@ -22,16 +22,19 @@ impl Counter {
     }
 
     /// Create new counter guard, incrementing the counter.
+    #[inline]
     pub fn get(&self) -> CounterGuard {
         CounterGuard::new(self.0.clone())
     }
 
     /// Returns true if counter is below capacity. Otherwise, register to wake task when it is.
+    #[inline]
     pub fn available(&self, cx: &mut task::Context<'_>) -> bool {
         self.0.available(cx)
     }
 
     /// Get total number of acquired guards.
+    #[inline]
     pub fn total(&self) -> usize {
         self.0.count.get()
     }

actix-utils/src/future/either.rs

@@ -40,11 +40,13 @@ pin_project! {
 
 impl<L, R> Either<L, R> {
     /// Creates new `Either` using left variant.
+    #[inline]
     pub fn left(value: L) -> Either<L, R> {
         Either::Left { value }
     }
 
     /// Creates new `Either` using right variant.
+    #[inline]
     pub fn right(value: R) -> Either<L, R> {
         Either::Right { value }
     }
@@ -52,6 +54,7 @@ impl<L, R> Either<L, R> {
 
 impl<T> Either<T, T> {
     /// Unwraps into inner value when left and right have a common type.
+    #[inline]
     pub fn into_inner(self) -> T {
         match self {
             Either::Left { value } => value,
@@ -67,6 +70,7 @@ where
 {
     type Output = L::Output;
 
+    #[inline]
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         match self.project() {
             EitherProj::Left { value } => value.poll(cx),

actix-utils/src/future/mod.rs

@@ -1,4 +1,4 @@
-//! Asynchronous values.
+//! Helpers for constructing futures.
 
 mod either;
 mod poll_fn;

actix-utils/src/future/poll_fn.rs

@@ -8,6 +8,32 @@ use core::{
 };
 
 /// Creates a future driven by the provided function that receives a task context.
+///
+/// # Examples
+/// ```
+/// # use std::task::Poll;
+/// # use actix_utils::future::poll_fn;
+/// # async fn test_poll_fn() {
+/// let res = poll_fn(|_| Poll::Ready(42)).await;
+/// assert_eq!(res, 42);
+///
+/// let mut i = 5;
+/// let res = poll_fn(|cx| {
+///     i -= 1;
+///
+///     if i > 0 {
+///         cx.waker().wake_by_ref();
+///         Poll::Pending
+///     } else {
+///         Poll::Ready(42)
+///     }
+/// })
+/// .await;
+/// assert_eq!(res, 42);
+/// # }
+/// # actix_rt::Runtime::new().unwrap().block_on(test_poll_fn());
+/// ```
+#[inline]
 pub fn poll_fn<F, T>(f: F) -> PollFn<F>
 where
     F: FnMut(&mut Context<'_>) -> Poll<T>,
@@ -15,13 +41,11 @@ where
     PollFn { f }
 }
 
-/// A Future driven by the inner function.
+/// Future for the [`poll_fn`] function.
 pub struct PollFn<F> {
     f: F,
 }
 
-impl<F> Unpin for PollFn<F> {}
-
 impl<F> fmt::Debug for PollFn<F> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         f.debug_struct("PollFn").finish()
@@ -34,15 +58,23 @@ where
 {
     type Output = T;
 
-    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        (self.f)(cx)
+    #[inline]
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        // SAFETY: we are not moving out of the pinned field
+        // see https://github.com/rust-lang/rust/pull/102737
+        (unsafe { &mut self.get_unchecked_mut().f })(cx)
     }
 }
 
 #[cfg(test)]
 mod tests {
+    use std::marker::PhantomPinned;
+
     use super::*;
 
+    static_assertions::assert_impl_all!(PollFn<()>: Unpin);
+    static_assertions::assert_not_impl_all!(PollFn<PhantomPinned>: Unpin);
+
     #[actix_rt::test]
     async fn test_poll_fn() {
         let res = poll_fn(|_| Poll::Ready(42)).await;
@@ -62,4 +94,29 @@ mod tests {
         .await;
         assert_eq!(res, 42);
     }
+
+    // following soundness tests taken from https://github.com/tokio-rs/tokio/pull/5087
+
+    #[allow(dead_code)]
+    fn require_send<T: Send>(_t: &T) {}
+    #[allow(dead_code)]
+    fn require_sync<T: Sync>(_t: &T) {}
+
+    trait AmbiguousIfUnpin<A> {
+        fn some_item(&self) {}
+    }
+    impl<T: ?Sized> AmbiguousIfUnpin<()> for T {}
+    impl<T: ?Sized + Unpin> AmbiguousIfUnpin<[u8; 0]> for T {}
+
+    const _: fn() = || {
+        let pinned = std::marker::PhantomPinned;
+        let f = poll_fn(move |_| {
+            // Use `pinned` to take ownership of it.
+            let _ = &pinned;
+            std::task::Poll::Pending::<()>
+        });
+        require_send(&f);
+        require_sync(&f);
+        AmbiguousIfUnpin::some_item(&f);
+    };
 }

actix-utils/src/future/ready.rs

@@ -1,4 +1,4 @@
-//! When MSRV is 1.48, replace with `core::future::Ready` and `core::future::ready()`.
+//! When `core::future::Ready` has a `into_inner()` method, this can be deprecated.
 
 use core::{
     future::Future,
@@ -6,7 +6,7 @@ use core::{
     task::{Context, Poll},
 };
 
-/// Future for the [`ready`](ready()) function.
+/// Future for the [`ready`] function.
 ///
 /// Panic will occur if polled more than once.
 ///
@@ -65,6 +65,7 @@ impl<T> Future for Ready<T> {
 /// let a = ready(1);
 /// assert_eq!(a.into_inner(), 1);
 /// ```
+#[inline]
 pub fn ready<T>(val: T) -> Ready<T> {
     Ready { val: Some(val) }
 }
@@ -80,6 +81,7 @@ pub fn ready<T>(val: T) -> Ready<T> {
 /// assert_eq!(a.await, Ok(1));
 /// # }
 /// ```
+#[inline]
 pub fn ok<T, E>(val: T) -> Ready<Result<T, E>> {
     Ready { val: Some(Ok(val)) }
 }
@@ -95,6 +97,7 @@ pub fn ok<T, E>(val: T) -> Ready<Result<T, E>> {
 /// assert_eq!(a.await, Err(1));
 /// # }
 /// ```
+#[inline]
 pub fn err<T, E>(err: E) -> Ready<Result<T, E>> {
     Ready {
         val: Some(Err(err)),
@@ -106,12 +109,13 @@ mod tests {
     use std::rc::Rc;
 
     use futures_util::task::noop_waker;
-    use static_assertions::{assert_impl_all, assert_not_impl_all};
+    use static_assertions::{assert_impl_all, assert_not_impl_any};
 
     use super::*;
 
-    assert_impl_all!(Ready<()>: Send, Sync, Clone);
-    assert_not_impl_all!(Ready<Rc<()>>: Send, Sync);
+    assert_impl_all!(Ready<()>: Send, Sync, Unpin, Clone);
+    assert_impl_all!(Ready<Rc<()>>: Unpin, Clone);
+    assert_not_impl_any!(Ready<Rc<()>>: Send, Sync);
 
     #[test]
     #[should_panic]

actix-utils/src/lib.rs

@@ -1,7 +1,7 @@
 //! Various utilities used in the Actix ecosystem.
 
 #![deny(rust_2018_idioms, nonstandard_style)]
-#![warn(missing_docs)]
+#![warn(future_incompatible, missing_docs)]
 #![doc(html_logo_url = "https://actix.rs/img/logo.png")]
 #![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
 

bytestring/CHANGES.md

@@ -1,36 +1,45 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+
+## 1.1.0 - 2022-06-11
+- Implement `From<Box<str>>` for `ByteString`. [#458]
+- Implement `Into<String>` for `ByteString`. [#458]
+- Minimum supported Rust version (MSRV) is now 1.49.
+
+[#458]: https://github.com/actix/actix-net/pull/458
 
 
 ## 1.0.0 - 2020-12-31
-* Update `bytes` dependency to `1`.
-* Add array and slice of `u8` impls of `TryFrom` up to 32 in length.
-* Rename `get_ref` to `as_bytes` and rename `into_inner` to `into_bytes`.
-* `ByteString::new` is now a `const fn`.
-* Crate is now `#[no_std]` compatible.
+- Update `bytes` dependency to `1`.
+- Add array and slice of `u8` impls of `TryFrom` up to 32 in length.
+- Rename `get_ref` to `as_bytes` and rename `into_inner` to `into_bytes`.
+- `ByteString::new` is now a `const fn`.
+- Crate is now `#[no_std]` compatible.
 
 
 ## 0.1.5 - 2020-03-30
-* Serde support
+- Serde support
 
 
 ## 0.1.4 - 2020-01-14
-* Fix `AsRef<str>` impl
+- Fix `AsRef<str>` impl
 
 
 ## 0.1.3 - 2020-01-13
-* Add `PartialEq<T: AsRef<str>>`, `AsRef<[u8]>` impls
+- Add `PartialEq<T: AsRef<str>>`, `AsRef<[u8]>` impls
 
 
 ## 0.1.2 - 2019-12-22
-* Fix `new()` method
-* Make `ByteString::from_static()` and `ByteString::from_bytes_unchecked()` methods const.
+- Fix `new()` method
+- Make `ByteString::from_static()` and `ByteString::from_bytes_unchecked()` methods const.
 
 
 ## 0.1.1 - 2019-12-07
-* Fix hash impl
+- Fix hash impl
 
 
 ## 0.1.0 - 2019-12-07
-* Initial release
+- Initial release

bytestring/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bytestring"
-version = "1.0.0"
+version = "1.1.0"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -10,7 +10,6 @@ keywords = ["string", "bytes", "utf8", "web", "actix"]
 categories = ["no-std", "web-programming"]
 homepage = "https://actix.rs"
 repository = "https://github.com/actix/actix-net.git"
-documentation = "https://docs.rs/bytestring"
 license = "MIT OR Apache-2.0"
 edition = "2018"
 
@@ -19,10 +18,11 @@ name = "bytestring"
 path = "src/lib.rs"
 
 [dependencies]
-bytes = "1"
+bytes = "1.2"
 serde = { version = "1.0", optional = true }
 
 [dev-dependencies]
+ahash = { version = "0.7.6", default-features = false }
 serde_json = "1.0"
-# TODO: remove when ahash MSRV is restored
-ahash = { version = "=0.7.4", default-features = false }
+static_assertions = "1.1"
+rustversion = "1"

bytestring/src/lib.rs

@@ -2,12 +2,15 @@
 
 #![no_std]
 #![deny(rust_2018_idioms, nonstandard_style)]
-#![doc(html_logo_url = "https://actix.rs/img/logo.png")]
-#![doc(html_favicon_url = "https://actix.rs/favicon.ico")]
+#![warn(future_incompatible, missing_docs)]
 
 extern crate alloc;
 
-use alloc::{string::String, vec::Vec};
+use alloc::{
+    boxed::Box,
+    string::{String, ToString},
+    vec::Vec,
+};
 use core::{borrow, convert::TryFrom, fmt, hash, ops, str};
 
 use bytes::Bytes;
@@ -69,7 +72,7 @@ impl AsRef<[u8]> for ByteString {
 
 impl AsRef<str> for ByteString {
     fn as_ref(&self) -> &str {
-        &*self
+        self
     }
 }
 
@@ -93,7 +96,7 @@ impl ops::Deref for ByteString {
 
 impl borrow::Borrow<str> for ByteString {
     fn borrow(&self) -> &str {
-        &*self
+        self
     }
 }
 
@@ -111,6 +114,20 @@ impl From<&str> for ByteString {
     }
 }
 
+impl From<Box<str>> for ByteString {
+    #[inline]
+    fn from(value: Box<str>) -> Self {
+        Self(Bytes::from(value.into_boxed_bytes()))
+    }
+}
+
+impl From<ByteString> for String {
+    #[inline]
+    fn from(value: ByteString) -> Self {
+        value.to_string()
+    }
+}
+
 impl TryFrom<&[u8]> for ByteString {
     type Error = str::Utf8Error;
 
@@ -217,6 +234,16 @@ mod serde {
             String::deserialize(deserializer).map(ByteString::from)
         }
     }
+
+    #[cfg(test)]
+    mod serde_impl_tests {
+        use serde::de::DeserializeOwned;
+        use static_assertions::assert_impl_all;
+
+        use super::*;
+
+        assert_impl_all!(ByteString: Serialize, DeserializeOwned);
+    }
 }
 
 #[cfg(test)]
@@ -225,9 +252,24 @@ mod test {
     use core::hash::{Hash, Hasher};
 
     use ahash::AHasher;
+    use static_assertions::assert_impl_all;
 
     use super::*;
 
+    assert_impl_all!(ByteString: Send, Sync, Unpin, Sized);
+    assert_impl_all!(ByteString: Clone, Default, Eq, PartialOrd, Ord);
+    assert_impl_all!(ByteString: fmt::Debug, fmt::Display);
+
+    #[rustversion::since(1.56)]
+    mod above_1_56_impls {
+        // `[Ref]UnwindSafe` traits were only in std until rust 1.56
+
+        use core::panic::{RefUnwindSafe, UnwindSafe};
+
+        use super::*;
+        assert_impl_all!(ByteString: UnwindSafe, RefUnwindSafe);
+    }
+
     #[test]
     fn test_partial_eq() {
         let s: ByteString = ByteString::from_static("test");

clippy.toml

@@ -1 +1 @@
-msrv = "1.48"
+msrv = "1.57"

local-channel/CHANGES.md

@@ -1,7 +1,16 @@
 # Changes
 
-## Unreleased - 2021-xx-xx
+## Unreleased - 2022-xx-xx
+- Minimum supported Rust version (MSRV) is now 1.57.
+
+
+## 0.1.3 - 2022-05-03
+- Minimum supported Rust version (MSRV) is now 1.49.
+
+
+## 0.1.2 - 2021-04-01
+- No significant changes from `0.1.1`.
 
 
 ## 0.1.1 - 2021-03-29
-* Move local mpsc channel to it's own crate.
+- Move local mpsc channel to it's own crate.