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2 Commits

Author SHA1 Message Date
Nikolay Kim
ebf8d7fa34 Fix back-pressure handling for concurrent connections 2018-12-21 10:43:18 -08:00
Nikolay Kim
298727dcbd back port bug fixes 2018-12-12 19:01:59 -08:00
159 changed files with 4483 additions and 13998 deletions

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@@ -10,13 +10,13 @@ matrix:
include:
- rust: stable
- rust: beta
- rust: nightly-2019-06-15
- rust: nightly
allow_failures:
- rust: nightly-2019-06-15
- rust: nightly
env:
global:
- RUSTFLAGS="-C link-dead-code"
# - RUSTFLAGS="-C link-dead-code"
- OPENSSL_VERSION=openssl-1.0.2
before_install:
@@ -24,26 +24,31 @@ before_install:
- sudo apt-get update -qq
- sudo apt-get install -y openssl libssl-dev libelf-dev libdw-dev cmake gcc binutils-dev libiberty-dev
before_cache: |
if [[ "$TRAVIS_RUST_VERSION" == "nightly-2019-06-15" ]]; then
RUSTFLAGS="--cfg procmacro2_semver_exempt" cargo install --version 0.6.11 cargo-tarpaulin
fi
# Add clippy
before_script:
- export PATH=$PATH:~/.cargo/bin
script:
- |
if [[ "$TRAVIS_RUST_VERSION" != "nightly-2019-06-15" ]]; then
if [[ "$TRAVIS_RUST_VERSION" != "nightly" ]]; then
cargo clean
cargo test --all --all-features -- --nocapture
cargo test --features="ssl,tls,rust-tls" -- --nocapture
fi
- |
if [[ "$TRAVIS_RUST_VERSION" == "nightly" ]]; then
RUSTFLAGS="--cfg procmacro2_semver_exempt" cargo install -f cargo-tarpaulin
cargo tarpaulin --features="ssl,tls,rust-tls" --out Xml
bash <(curl -s https://codecov.io/bash)
echo "Uploaded code coverage"
fi
# Upload docs
after_success:
- |
if [[ "$TRAVIS_RUST_VERSION" == "nightly-2019-06-15" ]]; then
taskset -c 0 cargo tarpaulin --all --all-features --out Xml
echo "Uploaded code coverage"
bash <(curl -s https://codecov.io/bash)
if [[ "$TRAVIS_OS_NAME" == "linux" && "$TRAVIS_PULL_REQUEST" = "false" && "$TRAVIS_BRANCH" == "master" && "$TRAVIS_RUST_VERSION" == "beta" ]]; then
cargo doc --features "ssl,tls,rust-tls" --no-deps &&
echo "<meta http-equiv=refresh content=0;url=os_balloon/index.html>" > target/doc/index.html &&
git clone https://github.com/davisp/ghp-import.git &&
./ghp-import/ghp_import.py -n -p -f -m "Documentation upload" -r https://"$GH_TOKEN"@github.com/"$TRAVIS_REPO_SLUG.git" target/doc &&
echo "Uploaded documentation"
fi

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@@ -1,10 +1,19 @@
# Changes
## [0.3.0] - xxx
## [0.2.6] - 2018-12-21
* Split `Service` trait to separate crate
### Fixed
* Use new `Service<Request>` trait
* Fix back-pressure handling for concurrent connections
## [0.2.5] - 2018-12-12
### Fixed
* Fix back-pressure for concurrent ssl handshakes
* Drop completed future for .then and .and_then combinators
## [0.2.4] - 2018-11-21

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@@ -1,8 +1,8 @@
[package]
name = "actix-net"
version = "0.3.0"
version = "0.2.6"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix net - framework for the compisible network services for Rust"
description = "Actix net - framework for the compisible network services for Rust (experimental)"
readme = "README.md"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
@@ -11,31 +11,72 @@ documentation = "https://docs.rs/actix-net/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
[workspace]
members = [
"actix-codec",
"actix-connect",
"actix-rt",
"actix-service",
"actix-server",
"actix-server-config",
"actix-test-server",
"actix-threadpool",
"actix-tower",
"actix-ioframe",
"actix-utils",
"router",
]
[package.metadata.docs.rs]
features = ["ssl", "tls", "rust-tls"]
[badges]
travis-ci = { repository = "actix/actix-net", branch = "master" }
# appveyor = { repository = "fafhrd91/actix-web-hdy9d" }
codecov = { repository = "actix/actix-net", branch = "master", service = "github" }
[lib]
name = "actix_net"
path = "src/lib.rs"
[features]
default = []
# tls
tls = ["native-tls"]
# openssl
ssl = ["openssl", "tokio-openssl"]
# rustls
rust-tls = ["rustls", "tokio-rustls", "webpki", "webpki-roots"]
cell = []
[dependencies]
actix = "0.7.6"
log = "0.4"
num_cpus = "1.0"
# io
mio = "^0.6.13"
net2 = "0.2"
bytes = "0.4"
futures = "0.1"
slab = "0.4"
tokio = "0.1"
tokio-codec = "0.1"
tokio-io = "0.1"
tokio-tcp = "0.1"
tokio-timer = "0.2"
tokio-reactor = "0.1"
tokio-current-thread = "0.1"
tower-service = "0.1"
trust-dns-resolver = "^0.10.2"
# native-tls
native-tls = { version="0.2", optional = true }
# openssl
openssl = { version="0.10", optional = true }
tokio-openssl = { version="0.2", optional = true }
#rustls
rustls = { version = "^0.14", optional = true }
tokio-rustls = { version = "^0.8", optional = true }
webpki = { version = "0.18", optional = true }
webpki-roots = { version = "0.15", optional = true }
[dev-dependencies]
actix-service = "0.4.0"
actix-codec = "0.1.1"
actix-rt = "0.2.0"
actix-server = { version="0.5.0", features=["ssl"] }
env_logger = "0.6"
futures = "0.1.25"
openssl = "0.10"
tokio-tcp = "0.1"
tokio-openssl = "0.3"
env_logger = "0.5"
[profile.release]
lto = true
opt-level = 3
codegen-units = 1

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@@ -1,18 +1,20 @@
# Actix net [![Build Status](https://travis-ci.org/actix/actix-net.svg?branch=master)](https://travis-ci.org/actix/actix-net) [![codecov](https://codecov.io/gh/actix/actix-net/branch/master/graph/badge.svg)](https://codecov.io/gh/actix/actix-net) [![crates.io](https://meritbadge.herokuapp.com/actix-net)](https://crates.io/crates/actix-net) [![Join the chat at https://gitter.im/actix/actix](https://badges.gitter.im/actix/actix.svg)](https://gitter.im/actix/actix?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
Actix net - framework for composable network services
Actix net - framework for composable network services (experimental)
## Documentation & community resources
* [API Documentation (Development)](https://actix.rs/actix-net/actix_net/)
* [Chat on gitter](https://gitter.im/actix/actix)
* Cargo package: [actix-net](https://crates.io/crates/actix-net)
* Minimum supported Rust version: 1.32 or later
* Minimum supported Rust version: 1.26 or later
## Example
```rust
fn main() -> io::Result<()> {
fn main() {
let sys = actix::System::new("test");
// load ssl keys
let mut builder = SslAcceptor::mozilla_intermediate(SslMethod::tls()).unwrap();
builder.set_private_key_file("./examples/key.pem", SslFiletype::PEM).unwrap();
@@ -24,7 +26,7 @@ fn main() -> io::Result<()> {
// bind socket address and start workers. By default server uses number of
// available logical cpu as threads count. actix net start separate
// instances of service pipeline in each worker.
Server::build()
Server::default()
.bind(
// configure service pipeline
"basic", "0.0.0.0:8443",
@@ -33,23 +35,28 @@ fn main() -> io::Result<()> {
let acceptor = acceptor.clone();
// service for converting incoming TcpStream to a SslStream<TcpStream>
fn_service(move |stream: Io<tokio_tcp::TcpStream>| {
SslAcceptorExt::accept_async(&acceptor, stream.into_parts().0)
.map_err(|e| println!("Openssl error: {}", e))
})
// .and_then() combinator uses other service to convert incoming `Request` to a
// `Response` and then uses that response as an input for next
// service. in this case, on success we use `logger` service
.and_then(fn_service(logger))
// Next service counts number of connections
.and_then(move |_| {
let num = num.fetch_add(1, Ordering::Relaxed);
println!("got ssl connection {:?}", num);
future::ok(())
})
},
)?
.run()
(move |stream| {
SslAcceptorExt::accept_async(&acceptor, stream)
.map_err(|e| println!("Openssl error: {}", e))
})
// convert closure to a `NewService`
.into_new_service()
// .and_then() combinator uses other service to convert incoming `Request` to a `Response`
// and then uses that response as an input for next service.
// in this case, on success we use `logger` service
.and_then(logger)
// Next service counts number of connections
.and_then(move |req| {
let num = num.fetch_add(1, Ordering::Relaxed);
println!("processed {:?} connections", num);
future::ok(())
})
}).unwrap()
.start();
sys.run();
}
```

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@@ -1,15 +0,0 @@
# Changes
## [0.1.2] - 2019-03-27
* Added `Framed::map_io()` method.
## [0.1.1] - 2019-03-06
* Added `FramedParts::with_read_buffer()` method.
## [0.1.0] - 2018-12-09
* Move codec to separate crate

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@@ -1,25 +0,0 @@
[package]
name = "actix-codec"
version = "0.1.2"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Utilities for encoding and decoding frames"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-codec/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[lib]
name = "actix_codec"
path = "src/lib.rs"
[dependencies]
bytes = "0.4.12"
futures = "0.1.24"
tokio-io = "0.1.12"
tokio-codec = "0.1.1"
log = "0.4"

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@@ -1 +0,0 @@
../LICENSE-APACHE

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@@ -1 +0,0 @@
../LICENSE-MIT

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@@ -1,67 +0,0 @@
# Changes
## [0.2.1] - 2019-07-17
### Added
* Expose Connect addrs #30
### Changed
* Update `derive_more` to 0.15
## [0.2.0] - 2019-05-12
### Changed
* Upgrade to actix-service 0.4
## [0.1.5] - 2019-04-19
### Added
* `Connect::set_addr()`
### Changed
* Use trust-dns-resolver 0.11.0
## [0.1.4] - 2019-04-12
### Changed
* Do not start default resolver immediately for default connector.
## [0.1.3] - 2019-04-11
### Changed
* Start trust-dns default resolver on first use
## [0.1.2] - 2019-04-04
### Added
* Log error if dns system config could not be loaded.
### Changed
* Rename connect Connector to TcpConnector #10
## [0.1.1] - 2019-03-15
### Fixed
* Fix error handling for single address
## [0.1.0] - 2019-03-14
* Refactor resolver and connector services
* Rename crate

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@@ -1,52 +0,0 @@
[package]
name = "actix-connect"
version = "0.2.1"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix Connector - tcp connector service"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-connect/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[package.metadata.docs.rs]
features = ["ssl", "uri"]
[lib]
name = "actix_connect"
path = "src/lib.rs"
[features]
default = ["uri"]
# openssl
ssl = ["openssl", "tokio-openssl"]
# support http::Uri as connect address
uri = ["http"]
[dependencies]
actix-service = "0.4.0"
actix-codec = "0.1.2"
actix-utils = "0.4.0"
derive_more = "0.15"
either = "1.5.2"
futures = "0.1.25"
http = { version = "0.1.17", optional = true }
log = "0.4"
tokio-tcp = "0.1.3"
tokio-current-thread = "0.1.5"
trust-dns-resolver = { version="0.11.0", default-features = false }
# openssl
openssl = { version="0.10", optional = true }
tokio-openssl = { version="0.3", optional = true }
[dev-dependencies]
bytes = "0.4"
actix-test-server = { version="0.2.2", features=["ssl"] }
actix-server-config = "0.1.0"

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@@ -1 +0,0 @@
../LICENSE-APACHE

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@@ -1 +0,0 @@
../LICENSE-MIT

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@@ -1,281 +0,0 @@
use std::collections::{vec_deque, VecDeque};
use std::fmt;
use std::iter::{FromIterator, FusedIterator};
use std::net::SocketAddr;
use either::Either;
/// Connect request
pub trait Address {
/// Host name of the request
fn host(&self) -> &str;
/// Port of the request
fn port(&self) -> Option<u16>;
}
impl Address for String {
fn host(&self) -> &str {
&self
}
fn port(&self) -> Option<u16> {
None
}
}
impl Address for &'static str {
fn host(&self) -> &str {
self
}
fn port(&self) -> Option<u16> {
None
}
}
/// Connect request
#[derive(Eq, PartialEq, Debug, Hash)]
pub struct Connect<T> {
pub(crate) req: T,
pub(crate) port: u16,
pub(crate) addr: Option<Either<SocketAddr, VecDeque<SocketAddr>>>,
}
impl<T: Address> Connect<T> {
/// Create `Connect` instance by spliting the string by ':' and convert the second part to u16
pub fn new(req: T) -> Connect<T> {
let (_, port) = parse(req.host());
Connect {
req,
port: port.unwrap_or(0),
addr: None,
}
}
/// Create new `Connect` instance from host and address. Connector skips name resolution stage for such connect messages.
pub fn with(req: T, addr: SocketAddr) -> Connect<T> {
Connect {
req,
port: 0,
addr: Some(Either::Left(addr)),
}
}
/// Use port if address does not provide one.
///
/// By default it set to 0
pub fn set_port(mut self, port: u16) -> Self {
self.port = port;
self
}
/// Use address.
pub fn set_addr(mut self, addr: Option<SocketAddr>) -> Self {
if let Some(addr) = addr {
self.addr = Some(Either::Left(addr));
}
self
}
/// Use 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 {
addrs.pop_front().map(Either::Left)
} else {
Some(Either::Right(addrs))
};
self
}
/// Host name
pub fn host(&self) -> &str {
self.req.host()
}
/// Port of the request
pub fn port(&self) -> u16 {
self.req.port().unwrap_or(self.port)
}
/// Preresolved addresses of the request.
pub fn addrs(&self) -> ConnectAddrsIter<'_> {
let inner = match self.addr {
None => Either::Left(None),
Some(Either::Left(addr)) => Either::Left(Some(addr)),
Some(Either::Right(ref addrs)) => Either::Right(addrs.iter()),
};
ConnectAddrsIter { inner }
}
/// Takes preresolved addresses of the request.
pub fn take_addrs(&mut self) -> ConnectTakeAddrsIter {
let inner = match self.addr.take() {
None => Either::Left(None),
Some(Either::Left(addr)) => Either::Left(Some(addr)),
Some(Either::Right(addrs)) => Either::Right(addrs.into_iter()),
};
ConnectTakeAddrsIter { inner }
}
}
impl<T: Address> From<T> for Connect<T> {
fn from(addr: T) -> Self {
Connect::new(addr)
}
}
impl<T: Address> fmt::Display for Connect<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}:{}", self.host(), self.port())
}
}
/// Iterator over addresses in a [`Connect`](struct.Connect.html) request.
#[derive(Clone)]
pub struct ConnectAddrsIter<'a> {
inner: Either<Option<SocketAddr>, vec_deque::Iter<'a, SocketAddr>>,
}
impl Iterator for ConnectAddrsIter<'_> {
type Item = SocketAddr;
fn next(&mut self) -> Option<Self::Item> {
match self.inner {
Either::Left(ref mut opt) => opt.take(),
Either::Right(ref mut iter) => iter.next().copied(),
}
}
fn size_hint(&self) -> (usize, Option<usize>) {
match self.inner {
Either::Left(Some(_)) => (1, Some(1)),
Either::Left(None) => (0, Some(0)),
Either::Right(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 ExactSizeIterator for ConnectAddrsIter<'_> {}
impl FusedIterator for ConnectAddrsIter<'_> {}
/// Owned iterator over addresses in a [`Connect`](struct.Connect.html) request.
#[derive(Debug)]
pub struct ConnectTakeAddrsIter {
inner: Either<Option<SocketAddr>, vec_deque::IntoIter<SocketAddr>>,
}
impl Iterator for ConnectTakeAddrsIter {
type Item = SocketAddr;
fn next(&mut self) -> Option<Self::Item> {
match self.inner {
Either::Left(ref mut opt) => opt.take(),
Either::Right(ref mut iter) => iter.next(),
}
}
fn size_hint(&self) -> (usize, Option<usize>) {
match self.inner {
Either::Left(Some(_)) => (1, Some(1)),
Either::Left(None) => (0, Some(0)),
Either::Right(ref iter) => iter.size_hint(),
}
}
}
impl ExactSizeIterator for ConnectTakeAddrsIter {}
impl FusedIterator for ConnectTakeAddrsIter {}
fn parse(host: &str) -> (&str, Option<u16>) {
let mut parts_iter = host.splitn(2, ':');
if let Some(host) = parts_iter.next() {
let port_str = parts_iter.next().unwrap_or("");
if let Ok(port) = port_str.parse::<u16>() {
(host, Some(port))
} else {
(host, None)
}
} else {
(host, None)
}
}
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<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 get_ref(&self) -> &U {
&self.io
}
/// Returns a mutable reference to the underlying stream.
pub fn get_mut(&mut self) -> &mut U {
&mut self.io
}
}
impl<T: Address, U> Connection<T, U> {
/// Get request
pub fn host(&self) -> &str {
&self.req.host()
}
}
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)
}
}

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@@ -1,157 +0,0 @@
use std::collections::VecDeque;
use std::marker::PhantomData;
use std::net::SocketAddr;
use actix_service::{NewService, Service};
use futures::future::{err, ok, Either, FutureResult};
use futures::{Async, Future, Poll};
use tokio_tcp::{ConnectFuture, TcpStream};
use super::connect::{Address, Connect, Connection};
use super::error::ConnectError;
/// Tcp connector service factory
#[derive(Debug)]
pub struct TcpConnectorFactory<T>(PhantomData<T>);
impl<T> TcpConnectorFactory<T> {
pub fn new() -> Self {
TcpConnectorFactory(PhantomData)
}
}
impl<T> Clone for TcpConnectorFactory<T> {
fn clone(&self) -> Self {
TcpConnectorFactory(PhantomData)
}
}
impl<T: Address> NewService for TcpConnectorFactory<T> {
type Request = Connect<T>;
type Response = Connection<T, TcpStream>;
type Error = ConnectError;
type Config = ();
type Service = TcpConnector<T>;
type InitError = ();
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, _: &()) -> Self::Future {
ok(TcpConnector(PhantomData))
}
}
/// Tcp connector service
#[derive(Debug)]
pub struct TcpConnector<T>(PhantomData<T>);
impl<T> TcpConnector<T> {
pub fn new() -> Self {
TcpConnector(PhantomData)
}
}
impl<T> Clone for TcpConnector<T> {
fn clone(&self) -> Self {
TcpConnector(PhantomData)
}
}
impl<T: Address> Service for TcpConnector<T> {
type Request = Connect<T>;
type Response = Connection<T, TcpStream>;
type Error = ConnectError;
type Future = Either<TcpConnectorResponse<T>, FutureResult<Self::Response, Self::Error>>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, req: Connect<T>) -> Self::Future {
let port = req.port();
let Connect { req, addr, .. } = req;
if let Some(addr) = addr {
Either::A(TcpConnectorResponse::new(req, port, addr))
} else {
error!("TCP connector: got unresolved address");
Either::B(err(ConnectError::Unresolverd))
}
}
}
#[doc(hidden)]
/// Tcp stream connector response future
pub struct TcpConnectorResponse<T> {
req: Option<T>,
port: u16,
addrs: Option<VecDeque<SocketAddr>>,
stream: Option<ConnectFuture>,
}
impl<T: Address> TcpConnectorResponse<T> {
pub fn new(
req: T,
port: u16,
addr: either::Either<SocketAddr, VecDeque<SocketAddr>>,
) -> TcpConnectorResponse<T> {
trace!(
"TCP connector - connecting to {:?} port:{}",
req.host(),
port
);
match addr {
either::Either::Left(addr) => TcpConnectorResponse {
req: Some(req),
port,
addrs: None,
stream: Some(TcpStream::connect(&addr)),
},
either::Either::Right(addrs) => TcpConnectorResponse {
req: Some(req),
port,
addrs: Some(addrs),
stream: None,
},
}
}
}
impl<T: Address> Future for TcpConnectorResponse<T> {
type Item = Connection<T, TcpStream>;
type Error = ConnectError;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
// connect
loop {
if let Some(new) = self.stream.as_mut() {
match new.poll() {
Ok(Async::Ready(sock)) => {
let req = self.req.take().unwrap();
trace!(
"TCP connector - successfully connected to connecting to {:?} - {:?}",
req.host(), sock.peer_addr()
);
return Ok(Async::Ready(Connection::new(sock, req)));
}
Ok(Async::NotReady) => return Ok(Async::NotReady),
Err(err) => {
trace!(
"TCP connector - failed to connect to connecting to {:?} port: {}",
self.req.as_ref().unwrap().host(),
self.port,
);
if self.addrs.is_none() || self.addrs.as_ref().unwrap().is_empty() {
return Err(err.into());
}
}
}
}
// try to connect
self.stream = Some(TcpStream::connect(
&self.addrs.as_mut().unwrap().pop_front().unwrap(),
));
}
}
}

View File

@@ -1,26 +0,0 @@
use std::io;
use derive_more::{Display, From};
use trust_dns_resolver::error::ResolveError;
#[derive(Debug, From, Display)]
pub enum ConnectError {
/// Failed to resolve the hostname
#[display(fmt = "Failed resolving hostname: {}", _0)]
Resolver(ResolveError),
/// No dns records
#[display(fmt = "No dns records found for the input")]
NoRecords,
/// Invalid input
InvalidInput,
/// Unresolved host name
#[display(fmt = "Connector received `Connect` method with unresolved host")]
Unresolverd,
/// Connection io error
#[display(fmt = "{}", _0)]
Io(io::Error),
}

View File

@@ -1,109 +0,0 @@
//! Actix connect - tcp connector service
//!
//! ## Package feature
//!
//! * `ssl` - enables ssl support via `openssl` crate
//! * `rust-tls` - enables ssl support via `rustls` crate
#![recursion_limit = "128"]
#[macro_use]
extern crate log;
use std::cell::RefCell;
mod connect;
mod connector;
mod error;
mod resolver;
pub mod ssl;
#[cfg(feature = "uri")]
mod uri;
pub use trust_dns_resolver::config::{ResolverConfig, ResolverOpts};
pub use trust_dns_resolver::system_conf::read_system_conf;
pub use trust_dns_resolver::{error::ResolveError, AsyncResolver};
pub use self::connect::{Address, Connect, Connection};
pub use self::connector::{TcpConnector, TcpConnectorFactory};
pub use self::error::ConnectError;
pub use self::resolver::{Resolver, ResolverFactory};
use actix_service::{NewService, Service, ServiceExt};
use tokio_tcp::TcpStream;
pub fn start_resolver(cfg: ResolverConfig, opts: ResolverOpts) -> AsyncResolver {
let (resolver, bg) = AsyncResolver::new(cfg, opts);
tokio_current_thread::spawn(bg);
resolver
}
thread_local! {
static DEFAULT_RESOLVER: RefCell<Option<AsyncResolver>> = RefCell::new(None);
}
pub(crate) fn get_default_resolver() -> AsyncResolver {
DEFAULT_RESOLVER.with(|cell| {
if let Some(ref resolver) = *cell.borrow() {
return resolver.clone();
}
let (cfg, opts) = match read_system_conf() {
Ok((cfg, opts)) => (cfg, opts),
Err(e) => {
log::error!("TRust-DNS can not load system config: {}", e);
(ResolverConfig::default(), ResolverOpts::default())
}
};
let (resolver, bg) = AsyncResolver::new(cfg, opts);
tokio_current_thread::spawn(bg);
*cell.borrow_mut() = Some(resolver.clone());
resolver
})
}
pub fn start_default_resolver() -> AsyncResolver {
get_default_resolver()
}
/// Create tcp connector service
pub fn new_connector<T: Address>(
resolver: AsyncResolver,
) -> impl Service<Request = Connect<T>, Response = Connection<T, TcpStream>, Error = ConnectError>
+ Clone {
Resolver::new(resolver).and_then(TcpConnector::new())
}
/// Create tcp connector service
pub fn new_connector_factory<T: Address>(
resolver: AsyncResolver,
) -> impl NewService<
Config = (),
Request = Connect<T>,
Response = Connection<T, TcpStream>,
Error = ConnectError,
InitError = (),
> + Clone {
ResolverFactory::new(resolver).and_then(TcpConnectorFactory::new())
}
/// Create connector service with default parameters
pub fn default_connector<T: Address>(
) -> impl Service<Request = Connect<T>, Response = Connection<T, TcpStream>, Error = ConnectError>
+ Clone {
Resolver::default().and_then(TcpConnector::new())
}
/// Create connector service factory with default parameters
pub fn default_connector_factory<T: Address>() -> impl NewService<
Config = (),
Request = Connect<T>,
Response = Connection<T, TcpStream>,
Error = ConnectError,
InitError = (),
> + Clone {
ResolverFactory::default().and_then(TcpConnectorFactory::new())
}

View File

@@ -1,183 +0,0 @@
use std::marker::PhantomData;
use std::net::SocketAddr;
use actix_service::{NewService, Service};
use futures::future::{ok, Either, FutureResult};
use futures::{Async, Future, Poll};
use trust_dns_resolver::lookup_ip::LookupIpFuture;
use trust_dns_resolver::{AsyncResolver, Background};
use crate::connect::{Address, Connect};
use crate::error::ConnectError;
use crate::get_default_resolver;
/// DNS Resolver Service factory
pub struct ResolverFactory<T> {
resolver: Option<AsyncResolver>,
_t: PhantomData<T>,
}
impl<T> ResolverFactory<T> {
/// Create new resolver instance with custom configuration and options.
pub fn new(resolver: AsyncResolver) -> Self {
ResolverFactory {
resolver: Some(resolver),
_t: PhantomData,
}
}
}
impl<T> Default for ResolverFactory<T> {
fn default() -> Self {
ResolverFactory {
resolver: None,
_t: PhantomData,
}
}
}
impl<T> Clone for ResolverFactory<T> {
fn clone(&self) -> Self {
ResolverFactory {
resolver: self.resolver.clone(),
_t: PhantomData,
}
}
}
impl<T: Address> NewService for ResolverFactory<T> {
type Request = Connect<T>;
type Response = Connect<T>;
type Error = ConnectError;
type Config = ();
type Service = Resolver<T>;
type InitError = ();
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, _: &()) -> Self::Future {
ok(Resolver {
resolver: self.resolver.clone(),
_t: PhantomData,
})
}
}
/// DNS Resolver Service
pub struct Resolver<T> {
resolver: Option<AsyncResolver>,
_t: PhantomData<T>,
}
impl<T> Resolver<T> {
/// Create new resolver instance with custom configuration and options.
pub fn new(resolver: AsyncResolver) -> Self {
Resolver {
resolver: Some(resolver),
_t: PhantomData,
}
}
}
impl<T> Default for Resolver<T> {
fn default() -> Self {
Resolver {
resolver: None,
_t: PhantomData,
}
}
}
impl<T> Clone for Resolver<T> {
fn clone(&self) -> Self {
Resolver {
resolver: self.resolver.clone(),
_t: PhantomData,
}
}
}
impl<T: Address> Service for Resolver<T> {
type Request = Connect<T>;
type Response = Connect<T>;
type Error = ConnectError;
type Future = Either<ResolverFuture<T>, FutureResult<Connect<T>, Self::Error>>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, mut req: Connect<T>) -> Self::Future {
if req.addr.is_some() {
Either::B(ok(req))
} else {
if let Ok(ip) = req.host().parse() {
req.addr = Some(either::Either::Left(SocketAddr::new(ip, req.port())));
Either::B(ok(req))
} else {
trace!("DNS resolver: resolving host {:?}", req.host());
if self.resolver.is_none() {
self.resolver = Some(get_default_resolver());
}
Either::A(ResolverFuture::new(req, self.resolver.as_ref().unwrap()))
}
}
}
}
#[doc(hidden)]
/// Resolver future
pub struct ResolverFuture<T: Address> {
req: Option<Connect<T>>,
lookup: Background<LookupIpFuture>,
}
impl<T: Address> ResolverFuture<T> {
pub fn new(req: Connect<T>, resolver: &AsyncResolver) -> Self {
let lookup = if let Some(host) = req.host().splitn(2, ':').next() {
resolver.lookup_ip(host)
} else {
resolver.lookup_ip(req.host())
};
ResolverFuture {
lookup,
req: Some(req),
}
}
}
impl<T: Address> Future for ResolverFuture<T> {
type Item = Connect<T>;
type Error = ConnectError;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
match self.lookup.poll().map_err(|e| {
trace!(
"DNS resolver: failed to resolve host {:?} err: {}",
self.req.as_ref().unwrap().host(),
e
);
e
})? {
Async::NotReady => Ok(Async::NotReady),
Async::Ready(ips) => {
let req = self.req.take().unwrap();
let port = req.port();
let req = req.set_addrs(ips.iter().map(|ip| SocketAddr::new(ip, port)));
trace!(
"DNS resolver: host {:?} resolved to {:?}",
req.host(),
req.addrs()
);
if req.addr.is_none() {
Err(ConnectError::NoRecords)
} else {
Ok(Async::Ready(req))
}
}
}
}
}

View File

@@ -1,6 +0,0 @@
//! SSL Services
#[cfg(feature = "ssl")]
mod openssl;
#[cfg(feature = "ssl")]
pub use self::openssl::OpensslConnector;

View File

@@ -1,128 +0,0 @@
use std::fmt;
use std::marker::PhantomData;
use actix_codec::{AsyncRead, AsyncWrite};
use actix_service::{NewService, Service};
use futures::{future::ok, future::FutureResult, Async, Future, Poll};
use openssl::ssl::{HandshakeError, SslConnector};
use tokio_openssl::{ConnectAsync, SslConnectorExt, SslStream};
use crate::{Address, Connection};
/// Openssl connector factory
pub struct OpensslConnector<T, U> {
connector: SslConnector,
_t: PhantomData<(T, U)>,
}
impl<T, U> OpensslConnector<T, U> {
pub fn new(connector: SslConnector) -> Self {
OpensslConnector {
connector,
_t: PhantomData,
}
}
}
impl<T, U> OpensslConnector<T, U>
where
T: Address,
U: AsyncRead + AsyncWrite + fmt::Debug,
{
pub fn service(
connector: SslConnector,
) -> impl Service<
Request = Connection<T, U>,
Response = Connection<T, SslStream<U>>,
Error = HandshakeError<U>,
> {
OpensslConnectorService {
connector: connector,
_t: PhantomData,
}
}
}
impl<T, U> Clone for OpensslConnector<T, U> {
fn clone(&self) -> Self {
Self {
connector: self.connector.clone(),
_t: PhantomData,
}
}
}
impl<T: Address, U> NewService for OpensslConnector<T, U>
where
U: AsyncRead + AsyncWrite + fmt::Debug,
{
type Request = Connection<T, U>;
type Response = Connection<T, SslStream<U>>;
type Error = HandshakeError<U>;
type Config = ();
type Service = OpensslConnectorService<T, U>;
type InitError = ();
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, _: &()) -> Self::Future {
ok(OpensslConnectorService {
connector: self.connector.clone(),
_t: PhantomData,
})
}
}
pub struct OpensslConnectorService<T, U> {
connector: SslConnector,
_t: PhantomData<(T, U)>,
}
impl<T: Address, U> Service for OpensslConnectorService<T, U>
where
U: AsyncRead + AsyncWrite + fmt::Debug,
{
type Request = Connection<T, U>;
type Response = Connection<T, SslStream<U>>;
type Error = HandshakeError<U>;
type Future = ConnectAsyncExt<T, U>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, stream: Connection<T, U>) -> Self::Future {
trace!("SSL Handshake start for: {:?}", stream.host());
let (io, stream) = stream.replace(());
ConnectAsyncExt {
fut: SslConnectorExt::connect_async(&self.connector, stream.host(), io),
stream: Some(stream),
}
}
}
pub struct ConnectAsyncExt<T, U> {
fut: ConnectAsync<U>,
stream: Option<Connection<T, ()>>,
}
impl<T: Address, U> Future for ConnectAsyncExt<T, U>
where
U: AsyncRead + AsyncWrite + fmt::Debug,
{
type Item = Connection<T, SslStream<U>>;
type Error = HandshakeError<U>;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
match self.fut.poll().map_err(|e| {
trace!("SSL Handshake error: {:?}", e);
e
})? {
Async::Ready(stream) => {
let s = self.stream.take().unwrap();
trace!("SSL Handshake success: {:?}", s.host());
Ok(Async::Ready(s.replace(stream).1))
}
Async::NotReady => Ok(Async::NotReady),
}
}
}

View File

@@ -1,37 +0,0 @@
use http::Uri;
use crate::Address;
impl Address for Uri {
fn host(&self) -> &str {
self.host().unwrap_or("")
}
fn port(&self) -> Option<u16> {
if let Some(port) = self.port_u16() {
Some(port)
} else {
port(self.scheme_str())
}
}
}
// TODO: load data from file
fn port(scheme: Option<&str>) -> Option<u16> {
if let Some(scheme) = scheme {
match scheme {
"http" => Some(80),
"https" => Some(443),
"ws" => Some(80),
"wss" => Some(443),
"amqp" => Some(5672),
"amqps" => Some(5671),
"sb" => Some(5671),
"mqtt" => Some(1883),
"mqtts" => Some(8883),
_ => None,
}
} else {
None
}
}

View File

@@ -1,109 +0,0 @@
use actix_codec::{BytesCodec, Framed};
use actix_server_config::Io;
use actix_service::{service_fn, NewService, Service};
use actix_test_server::TestServer;
use bytes::Bytes;
use futures::{future::lazy, Future, Sink};
use http::{HttpTryFrom, Uri};
use trust_dns_resolver::config::{ResolverConfig, ResolverOpts};
use actix_connect::{default_connector, Connect};
#[cfg(feature = "ssl")]
#[test]
fn test_string() {
let mut srv = TestServer::with(|| {
service_fn(|io: Io<tokio_tcp::TcpStream>| {
Framed::new(io.into_parts().0, BytesCodec)
.send(Bytes::from_static(b"test"))
.then(|_| Ok::<_, ()>(()))
})
});
let mut conn = default_connector();
let addr = format!("localhost:{}", srv.port());
let con = srv.run_on(move || conn.call(addr.into())).unwrap();
assert_eq!(con.peer_addr().unwrap(), srv.addr());
}
#[test]
fn test_static_str() {
let mut srv = TestServer::with(|| {
service_fn(|io: Io<tokio_tcp::TcpStream>| {
Framed::new(io.into_parts().0, BytesCodec)
.send(Bytes::from_static(b"test"))
.then(|_| Ok::<_, ()>(()))
})
});
let resolver = srv
.block_on(lazy(
|| Ok::<_, ()>(actix_connect::start_default_resolver()),
))
.unwrap();
let mut conn = srv
.block_on(lazy(|| {
Ok::<_, ()>(actix_connect::new_connector(resolver.clone()))
}))
.unwrap();
let con = srv
.block_on(conn.call(Connect::with("10", srv.addr())))
.unwrap();
assert_eq!(con.peer_addr().unwrap(), srv.addr());
let connect = Connect::new(srv.host().to_owned());
let mut conn = srv
.block_on(lazy(|| Ok::<_, ()>(actix_connect::new_connector(resolver))))
.unwrap();
let con = srv.block_on(conn.call(connect));
assert!(con.is_err());
}
#[test]
fn test_new_service() {
let mut srv = TestServer::with(|| {
service_fn(|io: Io<tokio_tcp::TcpStream>| {
Framed::new(io.into_parts().0, BytesCodec)
.send(Bytes::from_static(b"test"))
.then(|_| Ok::<_, ()>(()))
})
});
let resolver = srv
.block_on(lazy(|| {
Ok::<_, ()>(actix_connect::start_resolver(
ResolverConfig::default(),
ResolverOpts::default(),
))
}))
.unwrap();
let factory = srv
.block_on(lazy(|| {
Ok::<_, ()>(actix_connect::new_connector_factory(resolver))
}))
.unwrap();
let mut conn = srv.block_on(factory.new_service(&())).unwrap();
let con = srv
.block_on(conn.call(Connect::with("10", srv.addr())))
.unwrap();
assert_eq!(con.peer_addr().unwrap(), srv.addr());
}
#[cfg(feature = "ssl")]
#[test]
fn test_uri() {
let mut srv = TestServer::with(|| {
service_fn(|io: Io<tokio_tcp::TcpStream>| {
Framed::new(io.into_parts().0, BytesCodec)
.send(Bytes::from_static(b"test"))
.then(|_| Ok::<_, ()>(()))
})
});
let mut conn = default_connector();
let addr = Uri::try_from(format!("https://localhost:{}", srv.port())).unwrap();
let con = srv.run_on(move || conn.call(addr.into())).unwrap();
assert_eq!(con.peer_addr().unwrap(), srv.addr());
}

View File

@@ -1,5 +0,0 @@
# Changes
## [0.1.0] - 2019-07-17
* Initial release

View File

@@ -1,35 +0,0 @@
[package]
name = "actix-ioframe"
version = "0.1.0"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix framed service"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-ioframed/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[lib]
name = "actix_ioframe"
path = "src/lib.rs"
[dependencies]
actix-service = "0.4.1"
actix-codec = "0.1.2"
bytes = "0.4"
either = "1.5.2"
futures = "0.1.25"
tokio-current-thread = "0.1.4"
log = "0.4"
[dev-dependencies]
actix-rt = "0.2.2"
actix-connect = "0.2.0"
actix-test-server = "0.2.2"
actix-server-config = "0.1.1"
tokio-tcp = "0.1"
tokio-timer = "0.2"

View File

@@ -1 +0,0 @@
../LICENSE-APACHE

View File

@@ -1 +0,0 @@
../LICENSE-MIT

View File

@@ -1,35 +0,0 @@
//! Custom cell impl
use std::cell::UnsafeCell;
use std::fmt;
use std::rc::Rc;
pub(crate) struct Cell<T> {
inner: Rc<UnsafeCell<T>>,
}
impl<T> Clone for Cell<T> {
fn clone(&self) -> Self {
Self {
inner: self.inner.clone(),
}
}
}
impl<T: fmt::Debug> fmt::Debug for Cell<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.inner.fmt(f)
}
}
impl<T> Cell<T> {
pub fn new(inner: T) -> Self {
Self {
inner: Rc::new(UnsafeCell::new(inner)),
}
}
pub(crate) unsafe fn get_mut(&mut self) -> &mut T {
&mut *self.inner.as_ref().get()
}
}

View File

@@ -1,110 +0,0 @@
use std::marker::PhantomData;
use actix_codec::{AsyncRead, AsyncWrite, Decoder, Encoder, Framed};
use futures::unsync::mpsc;
use crate::dispatcher::FramedMessage;
use crate::sink::Sink;
pub struct Connect<Io, St = (), Codec = ()> {
io: Io,
_t: PhantomData<(St, Codec)>,
}
impl<Io> Connect<Io>
where
Io: AsyncRead + AsyncWrite,
{
pub(crate) fn new(io: Io) -> Self {
Self {
io,
_t: PhantomData,
}
}
pub fn codec<Codec>(self, codec: Codec) -> ConnectResult<Io, (), Codec>
where
Codec: Encoder + Decoder,
{
let (tx, rx) = mpsc::unbounded();
let sink = Sink::new(tx);
ConnectResult {
state: (),
framed: Framed::new(self.io, codec),
rx,
sink,
}
}
}
pub struct ConnectResult<Io, St, Codec: Encoder + Decoder> {
pub(crate) state: St,
pub(crate) framed: Framed<Io, Codec>,
pub(crate) rx: mpsc::UnboundedReceiver<FramedMessage<<Codec as Encoder>::Item>>,
pub(crate) sink: Sink<<Codec as Encoder>::Item>,
}
impl<Io, St, Codec: Encoder + Decoder> ConnectResult<Io, St, Codec> {
#[inline]
pub fn sink(&self) -> &Sink<<Codec as Encoder>::Item> {
&self.sink
}
#[inline]
pub fn get_ref(&self) -> &Io {
self.framed.get_ref()
}
#[inline]
pub fn get_mut(&mut self) -> &mut Io {
self.framed.get_mut()
}
#[inline]
pub fn state<S>(self, state: S) -> ConnectResult<Io, S, Codec> {
ConnectResult {
state,
framed: self.framed,
rx: self.rx,
sink: self.sink,
}
}
}
impl<Io, St, Codec> futures::Stream for ConnectResult<Io, St, Codec>
where
Io: AsyncRead + AsyncWrite,
Codec: Encoder + Decoder,
{
type Item = <Codec as Decoder>::Item;
type Error = <Codec as Decoder>::Error;
fn poll(&mut self) -> futures::Poll<Option<Self::Item>, Self::Error> {
self.framed.poll()
}
}
impl<Io, St, Codec> futures::Sink for ConnectResult<Io, St, Codec>
where
Io: AsyncRead + AsyncWrite,
Codec: Encoder + Decoder,
{
type SinkItem = <Codec as Encoder>::Item;
type SinkError = <Codec as Encoder>::Error;
fn start_send(
&mut self,
item: Self::SinkItem,
) -> futures::StartSend<Self::SinkItem, Self::SinkError> {
self.framed.start_send(item)
}
fn poll_complete(&mut self) -> futures::Poll<(), Self::SinkError> {
self.framed.poll_complete()
}
fn close(&mut self) -> futures::Poll<(), Self::SinkError> {
self.framed.close()
}
}

View File

@@ -1,325 +0,0 @@
//! Framed dispatcher service and related utilities
use std::collections::VecDeque;
use std::mem;
use std::rc::Rc;
use actix_codec::{AsyncRead, AsyncWrite, Decoder, Encoder, Framed};
use actix_service::{IntoService, Service};
use futures::task::AtomicTask;
use futures::unsync::{mpsc, oneshot};
use futures::{Async, Future, Poll, Sink as FutureSink, Stream};
use log::debug;
use crate::cell::Cell;
use crate::error::ServiceError;
use crate::item::Item;
use crate::sink::Sink;
use crate::state::State;
type Request<S, U> = Item<S, U>;
type Response<U> = <U as Encoder>::Item;
pub(crate) enum FramedMessage<T> {
Message(T),
Close,
WaitClose(oneshot::Sender<()>),
}
/// FramedTransport - is a future that reads frames from Framed object
/// and pass then to the service.
pub(crate) struct FramedDispatcher<St, S, T, U>
where
S: Service<Request = Request<St, U>, Response = Option<Response<U>>>,
S::Error: 'static,
S::Future: 'static,
T: AsyncRead + AsyncWrite,
U: Encoder + Decoder,
<U as Encoder>::Item: 'static,
<U as Encoder>::Error: std::fmt::Debug,
{
service: S,
sink: Sink<<U as Encoder>::Item>,
state: State<St>,
dispatch_state: FramedState<S, U>,
framed: Framed<T, U>,
rx: Option<mpsc::UnboundedReceiver<FramedMessage<<U as Encoder>::Item>>>,
inner: Cell<FramedDispatcherInner<<U as Encoder>::Item, S::Error>>,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
}
impl<St, S, T, U> FramedDispatcher<St, S, T, U>
where
S: Service<Request = Request<St, U>, Response = Option<Response<U>>>,
S::Error: 'static,
S::Future: 'static,
T: AsyncRead + AsyncWrite,
U: Decoder + Encoder,
<U as Encoder>::Item: 'static,
<U as Encoder>::Error: std::fmt::Debug,
{
pub(crate) fn new<F: IntoService<S>>(
framed: Framed<T, U>,
state: State<St>,
service: F,
rx: mpsc::UnboundedReceiver<FramedMessage<<U as Encoder>::Item>>,
sink: Sink<<U as Encoder>::Item>,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
) -> Self {
FramedDispatcher {
framed,
state,
sink,
disconnect,
rx: Some(rx),
service: service.into_service(),
dispatch_state: FramedState::Processing,
inner: Cell::new(FramedDispatcherInner {
buf: VecDeque::new(),
task: AtomicTask::new(),
}),
}
}
}
enum FramedState<S: Service, U: Encoder + Decoder> {
Processing,
Error(ServiceError<S::Error, U>),
FramedError(ServiceError<S::Error, U>),
FlushAndStop(Vec<oneshot::Sender<()>>),
Stopping,
}
impl<S: Service, U: Encoder + Decoder> FramedState<S, U> {
fn stop(&mut self, tx: Option<oneshot::Sender<()>>) {
match self {
FramedState::FlushAndStop(ref mut vec) => {
if let Some(tx) = tx {
vec.push(tx)
}
}
FramedState::Processing => {
*self = FramedState::FlushAndStop(if let Some(tx) = tx {
vec![tx]
} else {
Vec::new()
})
}
FramedState::Error(_) | FramedState::FramedError(_) | FramedState::Stopping => {
if let Some(tx) = tx {
let _ = tx.send(());
}
}
}
}
}
struct FramedDispatcherInner<I, E> {
buf: VecDeque<Result<I, E>>,
task: AtomicTask,
}
impl<St, S, T, U> FramedDispatcher<St, S, T, U>
where
S: Service<Request = Request<St, U>, Response = Option<Response<U>>>,
S::Error: 'static,
S::Future: 'static,
T: AsyncRead + AsyncWrite,
U: Decoder + Encoder,
<U as Encoder>::Item: 'static,
<U as Encoder>::Error: std::fmt::Debug,
{
fn disconnect(&mut self, error: bool) {
if let Some(ref disconnect) = self.disconnect {
(&*disconnect)(&mut *self.state.get_mut(), error);
}
}
fn poll_read(&mut self) -> bool {
loop {
match self.service.poll_ready() {
Ok(Async::Ready(_)) => {
let item = match self.framed.poll() {
Ok(Async::Ready(Some(el))) => el,
Err(err) => {
self.dispatch_state =
FramedState::FramedError(ServiceError::Decoder(err));
return true;
}
Ok(Async::NotReady) => return false,
Ok(Async::Ready(None)) => {
self.dispatch_state = FramedState::Stopping;
return true;
}
};
let mut cell = self.inner.clone();
unsafe { cell.get_mut().task.register() };
tokio_current_thread::spawn(
self.service
.call(Item::new(self.state.clone(), self.sink.clone(), item))
.then(move |item| {
let item = match item {
Ok(Some(item)) => Ok(item),
Ok(None) => return Ok(()),
Err(err) => Err(err),
};
unsafe {
let inner = cell.get_mut();
inner.buf.push_back(item);
inner.task.notify();
}
Ok(())
}),
);
}
Ok(Async::NotReady) => return false,
Err(err) => {
self.dispatch_state = FramedState::Error(ServiceError::Service(err));
return true;
}
}
}
}
/// write to framed object
fn poll_write(&mut self) -> bool {
let inner = unsafe { self.inner.get_mut() };
let mut rx_done = self.rx.is_none();
let mut buf_empty = inner.buf.is_empty();
loop {
while !self.framed.is_write_buf_full() {
if !buf_empty {
match inner.buf.pop_front().unwrap() {
Ok(msg) => {
if let Err(err) = self.framed.force_send(msg) {
self.dispatch_state =
FramedState::FramedError(ServiceError::Encoder(err));
return true;
}
buf_empty = inner.buf.is_empty();
}
Err(err) => {
self.dispatch_state =
FramedState::Error(ServiceError::Service(err));
return true;
}
}
}
if !rx_done && self.rx.is_some() {
match self.rx.as_mut().unwrap().poll() {
Ok(Async::Ready(Some(FramedMessage::Message(msg)))) => {
if let Err(err) = self.framed.force_send(msg) {
self.dispatch_state =
FramedState::FramedError(ServiceError::Encoder(err));
return true;
}
}
Ok(Async::Ready(Some(FramedMessage::Close))) => {
self.dispatch_state.stop(None);
return true;
}
Ok(Async::Ready(Some(FramedMessage::WaitClose(tx)))) => {
self.dispatch_state.stop(Some(tx));
return true;
}
Ok(Async::Ready(None)) => {
rx_done = true;
let _ = self.rx.take();
}
Ok(Async::NotReady) => rx_done = true,
Err(_e) => {
rx_done = true;
let _ = self.rx.take();
}
}
}
if rx_done && buf_empty {
break;
}
}
if !self.framed.is_write_buf_empty() {
match self.framed.poll_complete() {
Ok(Async::NotReady) => break,
Err(err) => {
debug!("Error sending data: {:?}", err);
self.dispatch_state =
FramedState::FramedError(ServiceError::Encoder(err));
return true;
}
Ok(Async::Ready(_)) => (),
}
} else {
break;
}
}
false
}
}
impl<St, S, T, U> Future for FramedDispatcher<St, S, T, U>
where
S: Service<Request = Request<St, U>, Response = Option<Response<U>>>,
S::Error: 'static,
S::Future: 'static,
T: AsyncRead + AsyncWrite,
U: Decoder + Encoder,
<U as Encoder>::Item: 'static,
<U as Encoder>::Error: std::fmt::Debug,
{
type Item = ();
type Error = ServiceError<S::Error, U>;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
match mem::replace(&mut self.dispatch_state, FramedState::Processing) {
FramedState::Processing => {
if self.poll_read() || self.poll_write() {
self.poll()
} else {
Ok(Async::NotReady)
}
}
FramedState::Error(err) => {
if self.framed.is_write_buf_empty()
|| (self.poll_write() || self.framed.is_write_buf_empty())
{
self.disconnect(true);
Err(err)
} else {
self.dispatch_state = FramedState::Error(err);
Ok(Async::NotReady)
}
}
FramedState::FlushAndStop(mut vec) => {
if !self.framed.is_write_buf_empty() {
match self.framed.poll_complete() {
Err(err) => {
debug!("Error sending data: {:?}", err);
}
Ok(Async::NotReady) => {
self.dispatch_state = FramedState::FlushAndStop(vec);
return Ok(Async::NotReady);
}
Ok(Async::Ready(_)) => (),
}
};
for tx in vec.drain(..) {
let _ = tx.send(());
}
self.disconnect(false);
Ok(Async::Ready(()))
}
FramedState::FramedError(err) => {
self.disconnect(true);
Err(err)
}
FramedState::Stopping => {
self.disconnect(false);
Ok(Async::Ready(()))
}
}
}
}

View File

@@ -1,49 +0,0 @@
use std::fmt;
use actix_codec::{Decoder, Encoder};
/// Framed service errors
pub enum ServiceError<E, U: Encoder + Decoder> {
/// Inner service error
Service(E),
/// Encoder parse error
Encoder(<U as Encoder>::Error),
/// Decoder parse error
Decoder(<U as Decoder>::Error),
}
impl<E, U: Encoder + Decoder> From<E> for ServiceError<E, U> {
fn from(err: E) -> Self {
ServiceError::Service(err)
}
}
impl<E, U: Encoder + Decoder> fmt::Debug for ServiceError<E, U>
where
E: fmt::Debug,
<U as Encoder>::Error: fmt::Debug,
<U as Decoder>::Error: fmt::Debug,
{
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
match *self {
ServiceError::Service(ref e) => write!(fmt, "ServiceError::Service({:?})", e),
ServiceError::Encoder(ref e) => write!(fmt, "ServiceError::Encoder({:?})", e),
ServiceError::Decoder(ref e) => write!(fmt, "ServiceError::Encoder({:?})", e),
}
}
}
impl<E, U: Encoder + Decoder> fmt::Display for ServiceError<E, U>
where
E: fmt::Display,
<U as Encoder>::Error: fmt::Debug,
<U as Decoder>::Error: fmt::Debug,
{
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
match *self {
ServiceError::Service(ref e) => write!(fmt, "{}", e),
ServiceError::Encoder(ref e) => write!(fmt, "{:?}", e),
ServiceError::Decoder(ref e) => write!(fmt, "{:?}", e),
}
}
}

View File

@@ -1,90 +0,0 @@
use std::cell::{Ref, RefMut};
use std::fmt;
use std::ops::{Deref, DerefMut};
use actix_codec::{Decoder, Encoder};
use crate::sink::Sink;
use crate::state::State;
pub struct Item<St, Codec: Encoder + Decoder> {
state: State<St>,
sink: Sink<<Codec as Encoder>::Item>,
item: <Codec as Decoder>::Item,
}
impl<St, Codec> Item<St, Codec>
where
Codec: Encoder + Decoder,
{
pub(crate) fn new(
state: State<St>,
sink: Sink<<Codec as Encoder>::Item>,
item: <Codec as Decoder>::Item,
) -> Self {
Item { state, sink, item }
}
#[inline]
pub fn state(&self) -> Ref<St> {
self.state.get_ref()
}
#[inline]
pub fn state_mut(&mut self) -> RefMut<St> {
self.state.get_mut()
}
#[inline]
pub fn sink(&self) -> &Sink<<Codec as Encoder>::Item> {
&self.sink
}
#[inline]
pub fn into_inner(self) -> <Codec as Decoder>::Item {
self.item
}
#[inline]
pub fn into_parts(
self,
) -> (
State<St>,
Sink<<Codec as Encoder>::Item>,
<Codec as Decoder>::Item,
) {
(self.state, self.sink, self.item)
}
}
impl<St, Codec> Deref for Item<St, Codec>
where
Codec: Encoder + Decoder,
{
type Target = <Codec as Decoder>::Item;
#[inline]
fn deref(&self) -> &<Codec as Decoder>::Item {
&self.item
}
}
impl<St, Codec> DerefMut for Item<St, Codec>
where
Codec: Encoder + Decoder,
{
#[inline]
fn deref_mut(&mut self) -> &mut <Codec as Decoder>::Item {
&mut self.item
}
}
impl<St, Codec> fmt::Debug for Item<St, Codec>
where
Codec: Encoder + Decoder,
<Codec as Decoder>::Item: fmt::Debug,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_tuple("FramedItem").field(&self.item).finish()
}
}

View File

@@ -1,15 +0,0 @@
mod cell;
mod connect;
mod dispatcher;
mod error;
mod item;
mod service;
mod sink;
mod state;
pub use self::connect::{Connect, ConnectResult};
pub use self::error::ServiceError;
pub use self::item::Item;
pub use self::service::{Builder, NewServiceBuilder, ServiceBuilder};
pub use self::sink::Sink;
pub use self::state::State;

View File

@@ -1,363 +0,0 @@
use std::marker::PhantomData;
use std::rc::Rc;
use actix_codec::{AsyncRead, AsyncWrite, Decoder, Encoder};
use actix_service::{IntoNewService, IntoService, NewService, Service};
use futures::{Async, Future, Poll};
use crate::connect::{Connect, ConnectResult};
use crate::dispatcher::FramedDispatcher;
use crate::error::ServiceError;
use crate::item::Item;
use crate::state::State;
type RequestItem<S, U> = Item<S, U>;
type ResponseItem<U> = Option<<U as Encoder>::Item>;
/// Service builder - structure that follows the builder pattern
/// for building instances for framed services.
pub struct Builder<St, Codec>(PhantomData<(St, Codec)>);
impl<St, Codec> Builder<St, Codec> {
pub fn new() -> Builder<St, Codec> {
Builder(PhantomData)
}
/// Construct framed handler service with specified connect service
pub fn service<Io, C, F>(self, connect: F) -> ServiceBuilder<St, C, Io, Codec>
where
F: IntoService<C>,
Io: AsyncRead + AsyncWrite,
C: Service<Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
Codec: Decoder + Encoder,
{
ServiceBuilder {
connect: connect.into_service(),
disconnect: None,
_t: PhantomData,
}
}
/// Construct framed handler new service with specified connect service
pub fn factory<Io, C, F>(self, connect: F) -> NewServiceBuilder<St, C, Io, Codec>
where
F: IntoNewService<C>,
Io: AsyncRead + AsyncWrite,
C: NewService<
Config = (),
Request = Connect<Io>,
Response = ConnectResult<Io, St, Codec>,
>,
C::Error: 'static,
C::Future: 'static,
Codec: Decoder + Encoder,
{
NewServiceBuilder {
connect: connect.into_new_service(),
disconnect: None,
_t: PhantomData,
}
}
}
pub struct ServiceBuilder<St, C, Io, Codec> {
connect: C,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
_t: PhantomData<(St, Io, Codec)>,
}
impl<St, C, Io, Codec> ServiceBuilder<St, C, Io, Codec>
where
St: 'static,
Io: AsyncRead + AsyncWrite,
C: Service<Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
Codec: Decoder + Encoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
/// Callback to execute on disconnect
///
/// Second parameter indicates error occured during disconnect.
pub fn disconnect<F, Out>(mut self, disconnect: F) -> Self
where
F: Fn(&mut St, bool) + 'static,
{
self.disconnect = Some(Rc::new(disconnect));
self
}
/// Provide stream items handler service and construct service factory.
pub fn finish<F, T>(
self,
service: F,
) -> impl Service<Request = Io, Response = (), Error = ServiceError<C::Error, Codec>>
where
F: IntoNewService<T>,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
> + 'static,
{
FramedServiceImpl {
connect: self.connect,
handler: Rc::new(service.into_new_service()),
disconnect: self.disconnect.clone(),
_t: PhantomData,
}
}
}
pub struct NewServiceBuilder<St, C, Io, Codec> {
connect: C,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
_t: PhantomData<(St, Io, Codec)>,
}
impl<St, C, Io, Codec> NewServiceBuilder<St, C, Io, Codec>
where
St: 'static,
Io: AsyncRead + AsyncWrite,
C: NewService<Config = (), Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
C::Future: 'static,
Codec: Decoder + Encoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
/// Callback to execute on disconnect
///
/// Second parameter indicates error occured during disconnect.
pub fn disconnect<F>(mut self, disconnect: F) -> Self
where
F: Fn(&mut St, bool) + 'static,
{
self.disconnect = Some(Rc::new(disconnect));
self
}
pub fn finish<F, T, Cfg>(
self,
service: F,
) -> impl NewService<
Config = Cfg,
Request = Io,
Response = (),
Error = ServiceError<C::Error, Codec>,
>
where
F: IntoNewService<T>,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
> + 'static,
{
FramedService {
connect: self.connect,
handler: Rc::new(service.into_new_service()),
disconnect: self.disconnect,
_t: PhantomData,
}
}
}
pub(crate) struct FramedService<St, C, T, Io, Codec, Cfg> {
connect: C,
handler: Rc<T>,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
_t: PhantomData<(St, Io, Codec, Cfg)>,
}
impl<St, C, T, Io, Codec, Cfg> NewService for FramedService<St, C, T, Io, Codec, Cfg>
where
St: 'static,
Io: AsyncRead + AsyncWrite,
C: NewService<Config = (), Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
C::Future: 'static,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
> + 'static,
Codec: Decoder + Encoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
type Config = Cfg;
type Request = Io;
type Response = ();
type Error = ServiceError<C::Error, Codec>;
type InitError = C::InitError;
type Service = FramedServiceImpl<St, C::Service, T, Io, Codec>;
type Future = Box<Future<Item = Self::Service, Error = Self::InitError>>;
fn new_service(&self, _: &Cfg) -> Self::Future {
let handler = self.handler.clone();
let disconnect = self.disconnect.clone();
// create connect service and then create service impl
Box::new(
self.connect
.new_service(&())
.map(move |connect| FramedServiceImpl {
connect,
handler,
disconnect,
_t: PhantomData,
}),
)
}
}
pub struct FramedServiceImpl<St, C, T, Io, Codec> {
connect: C,
handler: Rc<T>,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
_t: PhantomData<(St, Io, Codec)>,
}
impl<St, C, T, Io, Codec> Service for FramedServiceImpl<St, C, T, Io, Codec>
where
Io: AsyncRead + AsyncWrite,
C: Service<Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
>,
<<T as NewService>::Service as Service>::Future: 'static,
Codec: Decoder + Encoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
type Request = Io;
type Response = ();
type Error = ServiceError<C::Error, Codec>;
type Future = FramedServiceImplResponse<St, Io, Codec, C, T>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
self.connect.poll_ready().map_err(|e| e.into())
}
fn call(&mut self, req: Io) -> Self::Future {
FramedServiceImplResponse {
inner: FramedServiceImplResponseInner::Connect(
self.connect.call(Connect::new(req)),
self.handler.clone(),
),
disconnect: self.disconnect.clone(),
}
}
}
pub struct FramedServiceImplResponse<St, Io, Codec, C, T>
where
C: Service<Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
>,
<<T as NewService>::Service as Service>::Future: 'static,
Io: AsyncRead + AsyncWrite,
Codec: Encoder + Decoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
inner: FramedServiceImplResponseInner<St, Io, Codec, C, T>,
disconnect: Option<Rc<Fn(&mut St, bool)>>,
}
enum FramedServiceImplResponseInner<St, Io, Codec, C, T>
where
C: Service<Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
>,
<<T as NewService>::Service as Service>::Future: 'static,
Io: AsyncRead + AsyncWrite,
Codec: Encoder + Decoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
Connect(C::Future, Rc<T>),
Handler(T::Future, Option<ConnectResult<Io, St, Codec>>),
Dispatcher(FramedDispatcher<St, T::Service, Io, Codec>),
}
impl<St, Io, Codec, C, T> Future for FramedServiceImplResponse<St, Io, Codec, C, T>
where
C: Service<Request = Connect<Io>, Response = ConnectResult<Io, St, Codec>>,
C::Error: 'static,
T: NewService<
Config = St,
Request = RequestItem<St, Codec>,
Response = ResponseItem<Codec>,
Error = C::Error,
InitError = C::Error,
>,
<<T as NewService>::Service as Service>::Future: 'static,
Io: AsyncRead + AsyncWrite,
Codec: Encoder + Decoder,
<Codec as Encoder>::Item: 'static,
<Codec as Encoder>::Error: std::fmt::Debug,
{
type Item = ();
type Error = ServiceError<C::Error, Codec>;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
match self.inner {
FramedServiceImplResponseInner::Connect(ref mut fut, ref handler) => {
match fut.poll()? {
Async::Ready(res) => {
self.inner = FramedServiceImplResponseInner::Handler(
handler.new_service(&res.state),
Some(res),
);
self.poll()
}
Async::NotReady => Ok(Async::NotReady),
}
}
FramedServiceImplResponseInner::Handler(ref mut fut, ref mut res) => {
match fut.poll()? {
Async::Ready(handler) => {
let res = res.take().unwrap();
self.inner =
FramedServiceImplResponseInner::Dispatcher(FramedDispatcher::new(
res.framed,
State::new(res.state),
handler,
res.rx,
res.sink,
self.disconnect.clone(),
));
self.poll()
}
Async::NotReady => Ok(Async::NotReady),
}
}
FramedServiceImplResponseInner::Dispatcher(ref mut fut) => fut.poll(),
}
}
}

View File

@@ -1,44 +0,0 @@
use std::fmt;
use futures::unsync::{mpsc, oneshot};
use futures::Future;
use crate::dispatcher::FramedMessage;
pub struct Sink<T>(mpsc::UnboundedSender<FramedMessage<T>>);
impl<T> Clone for Sink<T> {
fn clone(&self) -> Self {
Sink(self.0.clone())
}
}
impl<T> Sink<T> {
pub(crate) fn new(tx: mpsc::UnboundedSender<FramedMessage<T>>) -> Self {
Sink(tx)
}
/// Close connection
pub fn close(&self) {
let _ = self.0.unbounded_send(FramedMessage::Close);
}
/// Close connection
pub fn wait_close(&self) -> impl Future<Item = (), Error = ()> {
let (tx, rx) = oneshot::channel();
let _ = self.0.unbounded_send(FramedMessage::WaitClose(tx));
rx.map_err(|_| ())
}
/// Send item
pub fn send(&self, item: T) {
let _ = self.0.unbounded_send(FramedMessage::Message(item));
}
}
impl<T> fmt::Debug for Sink<T> {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.debug_struct("Sink").finish()
}
}

View File

@@ -1,30 +0,0 @@
use std::cell::{Ref, RefCell, RefMut};
use std::rc::Rc;
/// Connection state
///
/// Connection state is an arbitrary data attached to the each incoming message.
#[derive(Debug)]
pub struct State<T>(Rc<RefCell<T>>);
impl<T> State<T> {
pub(crate) fn new(st: T) -> Self {
State(Rc::new(RefCell::new(st)))
}
#[inline]
pub fn get_ref(&self) -> Ref<T> {
self.0.borrow()
}
#[inline]
pub fn get_mut(&mut self) -> RefMut<T> {
self.0.borrow_mut()
}
}
impl<T> Clone for State<T> {
fn clone(&self) -> Self {
State(self.0.clone())
}
}

View File

@@ -1,60 +0,0 @@
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::time::Duration;
use actix_codec::BytesCodec;
use actix_server_config::Io;
use actix_service::{new_apply_fn, Service};
use actix_test_server::TestServer;
use futures::Future;
use tokio_tcp::TcpStream;
use tokio_timer::sleep;
use actix_ioframe::{Builder, Connect};
struct State;
#[test]
fn test_disconnect() -> std::io::Result<()> {
let disconnect = Arc::new(AtomicBool::new(false));
let disconnect1 = disconnect.clone();
let mut srv = TestServer::with(move || {
let disconnect1 = disconnect1.clone();
new_apply_fn(
Builder::new()
.factory(|conn: Connect<_>| Ok(conn.codec(BytesCodec).state(State)))
.disconnect(move |_, _| {
disconnect1.store(true, Ordering::Relaxed);
})
.finish(|_t| Ok(None)),
|io: Io<TcpStream>, srv| srv.call(io.into_parts().0),
)
});
let mut client = Builder::new()
.service(|conn: Connect<_>| {
let conn = conn.codec(BytesCodec).state(State);
conn.sink().close();
Ok(conn)
})
.finish(|_t| Ok(None));
let conn = srv
.block_on(
actix_connect::default_connector()
.call(actix_connect::Connect::with(String::new(), srv.addr())),
)
.unwrap();
srv.block_on(client.call(conn.into_parts().0)).unwrap();
let _ = srv.block_on(
sleep(Duration::from_millis(100))
.map(|_| ())
.map_err(|_| ()),
);
assert!(disconnect.load(Ordering::Relaxed));
Ok(())
}

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@@ -1,44 +0,0 @@
# Changes
## [0.2.4] - 2019-07-17
### Changed
* Avoid a copy of the Future when initializing the Box. #29
## [0.2.3] - 2019-06-22
### Added
* Allow to start System using exsiting CurrentThread Handle #22
## [0.2.2] - 2019-03-28
### Changed
* Moved `blocking` module to `actix-threadpool` crate
## [0.2.1] - 2019-03-11
### Added
* Added `blocking` module
* Arbiter::exec_fn - execute fn on the arbiter's thread
* 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`
## [0.1.0] - 2018-12-09
* Initial release

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@@ -1,27 +0,0 @@
[package]
name = "actix-rt"
version = "0.2.4"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix runtime"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-rt/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[lib]
name = "actix_rt"
path = "src/lib.rs"
[dependencies]
actix-threadpool = "0.1.1"
futures = "0.1.25"
tokio-current-thread = "0.1"
tokio-executor = "0.1.5"
tokio-reactor = "0.1.7"
tokio-timer = "0.2.8"
copyless = "0.1.4"

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@@ -1 +0,0 @@
../LICENSE-APACHE

View File

@@ -1 +0,0 @@
../LICENSE-MIT

View File

@@ -1,319 +0,0 @@
use std::cell::{Cell, RefCell};
use std::collections::HashMap;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::{fmt, thread};
use futures::sync::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
use futures::sync::oneshot::{channel, Canceled, Sender};
use futures::{future, Async, Future, IntoFuture, Poll, Stream};
use tokio_current_thread::spawn;
use crate::builder::Builder;
use crate::system::System;
use copyless::BoxHelper;
thread_local!(
static ADDR: RefCell<Option<Arbiter>> = RefCell::new(None);
static RUNNING: Cell<bool> = Cell::new(false);
static Q: RefCell<Vec<Box<Future<Item = (), Error = ()>>>> = RefCell::new(Vec::new());
);
pub(crate) static COUNT: AtomicUsize = AtomicUsize::new(0);
pub(crate) enum ArbiterCommand {
Stop,
Execute(Box<Future<Item = (), Error = ()> + Send>),
ExecuteFn(Box<FnExec>),
}
impl fmt::Debug for ArbiterCommand {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
ArbiterCommand::Stop => write!(f, "ArbiterCommand::Stop"),
ArbiterCommand::Execute(_) => write!(f, "ArbiterCommand::Execute"),
ArbiterCommand::ExecuteFn(_) => write!(f, "ArbiterCommand::ExecuteFn"),
}
}
}
#[derive(Debug, Clone)]
/// Arbiters provide an asynchronous execution environment for actors, functions
/// and futures. When an Arbiter is created, they spawn a new OS thread, and
/// host an event loop. Some Arbiter functions execute on the current thread.
pub struct Arbiter(UnboundedSender<ArbiterCommand>);
impl Default for Arbiter {
fn default() -> Self {
Self::new()
}
}
impl Arbiter {
pub(crate) fn new_system() -> Self {
let (tx, rx) = unbounded();
let arb = Arbiter(tx);
ADDR.with(|cell| *cell.borrow_mut() = Some(arb.clone()));
RUNNING.with(|cell| cell.set(false));
Arbiter::spawn(ArbiterController { stop: None, rx });
arb
}
/// Returns the current thread's arbiter's address. If no Arbiter is present, then this
/// function will panic!
pub fn current() -> Arbiter {
ADDR.with(|cell| match *cell.borrow() {
Some(ref addr) => addr.clone(),
None => panic!("Arbiter is not running"),
})
}
/// Stop arbiter from continuing it's event loop.
pub fn stop(&self) {
let _ = self.0.unbounded_send(ArbiterCommand::Stop);
}
/// Spawn new thread and run event loop in spawned thread.
/// Returns address of newly created arbiter.
pub fn new() -> Arbiter {
let id = COUNT.fetch_add(1, Ordering::Relaxed);
let name = format!("actix-rt:worker:{}", id);
let sys = System::current();
let (arb_tx, arb_rx) = unbounded();
let arb_tx2 = arb_tx.clone();
let _ = thread::Builder::new().name(name.clone()).spawn(move || {
let mut rt = Builder::new().build_rt().expect("Can not create Runtime");
let arb = Arbiter(arb_tx);
let (stop, stop_rx) = channel();
RUNNING.with(|cell| cell.set(true));
System::set_current(sys);
// start arbiter controller
rt.spawn(ArbiterController {
stop: Some(stop),
rx: arb_rx,
});
ADDR.with(|cell| *cell.borrow_mut() = Some(arb.clone()));
// register arbiter
let _ = System::current()
.sys()
.unbounded_send(SystemCommand::RegisterArbiter(id, arb.clone()));
// run loop
let _ = match rt.block_on(stop_rx) {
Ok(code) => code,
Err(_) => 1,
};
// unregister arbiter
let _ = System::current()
.sys()
.unbounded_send(SystemCommand::UnregisterArbiter(id));
});
Arbiter(arb_tx2)
}
pub(crate) fn run_system() {
RUNNING.with(|cell| cell.set(true));
Q.with(|cell| {
let mut v = cell.borrow_mut();
for fut in v.drain(..) {
spawn(fut);
}
});
}
pub(crate) fn stop_system() {
RUNNING.with(|cell| cell.set(false));
}
/// Spawn a future on the current thread. This does not create a new Arbiter
/// or Arbiter address, it is simply a helper for spawning futures on the current
/// thread.
pub fn spawn<F>(future: F)
where
F: Future<Item = (), Error = ()> + 'static,
{
RUNNING.with(move |cell| {
if cell.get() {
spawn(Box::alloc().init(future));
} else {
Q.with(move |cell| cell.borrow_mut().push(Box::alloc().init(future)));
}
});
}
/// Executes a future on the current thread. This does not create a new Arbiter
/// or Arbiter address, it is simply a helper for executing futures on the current
/// thread.
pub fn spawn_fn<F, R>(f: F)
where
F: FnOnce() -> R + 'static,
R: IntoFuture<Item = (), Error = ()> + 'static,
{
Arbiter::spawn(future::lazy(f))
}
/// Send a future to the Arbiter's thread, and spawn it.
pub fn send<F>(&self, future: F)
where
F: Future<Item = (), Error = ()> + Send + 'static,
{
let _ = self
.0
.unbounded_send(ArbiterCommand::Execute(Box::new(future)));
}
/// Send a function to the Arbiter's thread, and execute it. Any result from the function
/// is discarded.
pub fn exec_fn<F>(&self, f: F)
where
F: FnOnce() + Send + 'static,
{
let _ = self
.0
.unbounded_send(ArbiterCommand::ExecuteFn(Box::new(move || {
let _ = f();
})));
}
/// Send a function to the Arbiter's thread. This function will be executed asynchronously.
/// A future is created, and when resolved will contain the result of the function sent
/// to the Arbiters thread.
pub fn exec<F, R>(&self, f: F) -> impl Future<Item = R, Error = Canceled>
where
F: FnOnce() -> R + Send + 'static,
R: Send + 'static,
{
let (tx, rx) = channel();
let _ = self
.0
.unbounded_send(ArbiterCommand::ExecuteFn(Box::new(move || {
if !tx.is_canceled() {
let _ = tx.send(f());
}
})));
rx
}
}
struct ArbiterController {
stop: Option<Sender<i32>>,
rx: UnboundedReceiver<ArbiterCommand>,
}
impl Drop for ArbiterController {
fn drop(&mut self) {
if thread::panicking() {
eprintln!("Panic in Arbiter thread, shutting down system.");
if System::current().stop_on_panic() {
System::current().stop_with_code(1)
}
}
}
}
impl Future for ArbiterController {
type Item = ();
type Error = ();
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
loop {
match self.rx.poll() {
Ok(Async::Ready(None)) | Err(_) => return Ok(Async::Ready(())),
Ok(Async::Ready(Some(item))) => match item {
ArbiterCommand::Stop => {
if let Some(stop) = self.stop.take() {
let _ = stop.send(0);
};
return Ok(Async::Ready(()));
}
ArbiterCommand::Execute(fut) => {
spawn(fut);
}
ArbiterCommand::ExecuteFn(f) => {
f.call_box();
}
},
Ok(Async::NotReady) => return Ok(Async::NotReady),
}
}
}
}
#[derive(Debug)]
pub(crate) enum SystemCommand {
Exit(i32),
RegisterArbiter(usize, Arbiter),
UnregisterArbiter(usize),
}
#[derive(Debug)]
pub(crate) struct SystemArbiter {
stop: Option<Sender<i32>>,
commands: UnboundedReceiver<SystemCommand>,
arbiters: HashMap<usize, Arbiter>,
}
impl SystemArbiter {
pub(crate) fn new(stop: Sender<i32>, commands: UnboundedReceiver<SystemCommand>) -> Self {
SystemArbiter {
commands,
stop: Some(stop),
arbiters: HashMap::new(),
}
}
}
impl Future for SystemArbiter {
type Item = ();
type Error = ();
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
loop {
match self.commands.poll() {
Ok(Async::Ready(None)) | Err(_) => return Ok(Async::Ready(())),
Ok(Async::Ready(Some(cmd))) => match cmd {
SystemCommand::Exit(code) => {
// stop arbiters
for arb in self.arbiters.values() {
arb.stop();
}
// stop event loop
if let Some(stop) = self.stop.take() {
let _ = stop.send(code);
}
}
SystemCommand::RegisterArbiter(name, hnd) => {
self.arbiters.insert(name, hnd);
}
SystemCommand::UnregisterArbiter(name) => {
self.arbiters.remove(&name);
}
},
Ok(Async::NotReady) => return Ok(Async::NotReady),
}
}
}
}
pub trait FnExec: Send + 'static {
fn call_box(self: Box<Self>);
}
impl<F> FnExec for F
where
F: FnOnce() + Send + 'static,
{
#[cfg_attr(feature = "cargo-clippy", allow(boxed_local))]
fn call_box(self: Box<Self>) {
(*self)()
}
}

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@@ -1,242 +0,0 @@
use std::borrow::Cow;
use std::io;
use futures::future;
use futures::future::{lazy, Future};
use futures::sync::mpsc::unbounded;
use futures::sync::oneshot::{channel, Receiver};
use tokio_current_thread::{CurrentThread, Handle};
use tokio_reactor::Reactor;
use tokio_timer::clock::Clock;
use tokio_timer::timer::Timer;
use crate::arbiter::{Arbiter, SystemArbiter};
use crate::runtime::Runtime;
use crate::system::System;
/// Builder struct for a actix runtime.
///
/// Either use `Builder::build` to create a system and start actors.
/// Alternatively, use `Builder::run` to start the tokio runtime and
/// run a function in its context.
pub struct Builder {
/// Name of the System. Defaults to "actix" if unset.
name: Cow<'static, str>,
/// The clock to use
clock: Clock,
/// Whether the Arbiter will stop the whole System on uncaught panic. Defaults to false.
stop_on_panic: bool,
}
impl Builder {
pub(crate) fn new() -> Self {
Builder {
name: Cow::Borrowed("actix"),
clock: Clock::new(),
stop_on_panic: false,
}
}
/// Sets the name of the System.
pub fn name<T: Into<String>>(mut self, name: T) -> Self {
self.name = Cow::Owned(name.into());
self
}
/// Set the Clock instance that will be used by this System.
///
/// Defaults to the system clock.
pub fn clock(mut self, clock: Clock) -> Self {
self.clock = clock;
self
}
/// Sets the option 'stop_on_panic' which controls whether the System is stopped when an
/// uncaught panic is thrown from a worker thread.
///
/// Defaults to false.
pub fn stop_on_panic(mut self, stop_on_panic: bool) -> Self {
self.stop_on_panic = stop_on_panic;
self
}
/// Create new System.
///
/// This method panics if it can not create tokio runtime
pub fn build(self) -> SystemRunner {
self.create_runtime(|| {})
}
/// Create new System that can run asynchronously.
///
/// This method panics if it cannot start the system arbiter
pub(crate) fn build_async(self, executor: Handle) -> AsyncSystemRunner {
self.create_async_runtime(executor)
}
/// This function will start tokio runtime and will finish once the
/// `System::stop()` message get called.
/// Function `f` get called within tokio runtime context.
pub fn run<F>(self, f: F) -> io::Result<()>
where
F: FnOnce() + 'static,
{
self.create_runtime(f).run()
}
fn create_async_runtime(self, executor: Handle) -> AsyncSystemRunner {
let (stop_tx, stop) = channel();
let (sys_sender, sys_receiver) = unbounded();
let system = System::construct(sys_sender, Arbiter::new_system(), self.stop_on_panic);
// system arbiter
let arb = SystemArbiter::new(stop_tx, sys_receiver);
// start the system arbiter
executor.spawn(arb).expect("could not start system arbiter");
AsyncSystemRunner { stop, system }
}
fn create_runtime<F>(self, f: F) -> SystemRunner
where
F: FnOnce() + 'static,
{
let (stop_tx, stop) = channel();
let (sys_sender, sys_receiver) = unbounded();
let system = System::construct(sys_sender, Arbiter::new_system(), self.stop_on_panic);
// system arbiter
let arb = SystemArbiter::new(stop_tx, sys_receiver);
let mut rt = self.build_rt().unwrap();
rt.spawn(arb);
// init system arbiter and run configuration method
let _ = rt.block_on(lazy(move || {
f();
Ok::<_, ()>(())
}));
SystemRunner { rt, stop, system }
}
pub(crate) fn build_rt(&self) -> io::Result<Runtime> {
// We need a reactor to receive events about IO objects from kernel
let reactor = Reactor::new()?;
let reactor_handle = reactor.handle();
// Place a timer wheel on top of the reactor. If there are no timeouts to fire, it'll let the
// reactor pick up some new external events.
let timer = Timer::new_with_now(reactor, self.clock.clone());
let timer_handle = timer.handle();
// And now put a single-threaded executor on top of the timer. When there are no futures ready
// to do something, it'll let the timer or the reactor to generate some new stimuli for the
// futures to continue in their life.
let executor = CurrentThread::new_with_park(timer);
Ok(Runtime::new2(
reactor_handle,
timer_handle,
self.clock.clone(),
executor,
))
}
}
#[derive(Debug)]
pub(crate) struct AsyncSystemRunner {
stop: Receiver<i32>,
system: System,
}
impl AsyncSystemRunner {
/// This function will start event loop and returns a future that
/// resolves once the `System::stop()` function is called.
pub(crate) fn run_nonblocking(self) -> impl Future<Item = (), Error = io::Error> + Send {
let AsyncSystemRunner { stop, .. } = self;
// run loop
future::lazy(|| {
Arbiter::run_system();
stop.then(|res| match res {
Ok(code) => {
if code != 0 {
Err(io::Error::new(
io::ErrorKind::Other,
format!("Non-zero exit code: {}", code),
))
} else {
Ok(())
}
}
Err(e) => Err(io::Error::new(io::ErrorKind::Other, e)),
})
.then(|result| {
Arbiter::stop_system();
result
})
})
}
}
/// Helper object that runs System's event loop
#[must_use = "SystemRunner must be run"]
#[derive(Debug)]
pub struct SystemRunner {
rt: Runtime,
stop: Receiver<i32>,
system: System,
}
impl SystemRunner {
/// This function will start event loop and will finish once the
/// `System::stop()` function is called.
pub fn run(self) -> io::Result<()> {
let SystemRunner { mut rt, stop, .. } = self;
// run loop
let _ = rt.block_on(lazy(move || {
Arbiter::run_system();
Ok::<_, ()>(())
}));
let result = match rt.block_on(stop) {
Ok(code) => {
if code != 0 {
Err(io::Error::new(
io::ErrorKind::Other,
format!("Non-zero exit code: {}", code),
))
} else {
Ok(())
}
}
Err(e) => Err(io::Error::new(io::ErrorKind::Other, e)),
};
Arbiter::stop_system();
result
}
/// Execute a future and wait for result.
pub fn block_on<F, I, E>(&mut self, fut: F) -> Result<I, E>
where
F: Future<Item = I, Error = E>,
{
let _ = self.rt.block_on(lazy(move || {
Arbiter::run_system();
Ok::<_, ()>(())
}));
let res = self.rt.block_on(fut);
let _ = self.rt.block_on(lazy(move || {
Arbiter::stop_system();
Ok::<_, ()>(())
}));
res
}
}

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@@ -1,30 +0,0 @@
//! A runtime implementation that runs everything on the current thread.
mod arbiter;
mod builder;
mod runtime;
mod system;
pub use self::arbiter::Arbiter;
pub use self::builder::{Builder, SystemRunner};
pub use self::runtime::Runtime;
pub use self::system::System;
#[doc(hidden)]
pub use actix_threadpool as blocking;
/// Spawns a future on the current arbiter.
///
/// # Panics
///
/// This function panics if actix system is not running.
pub fn spawn<F>(f: F)
where
F: futures::Future<Item = (), Error = ()> + 'static,
{
if !System::is_set() {
panic!("System is not running");
}
Arbiter::spawn(f);
}

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@@ -1,92 +0,0 @@
//! A runtime implementation that runs everything on the current thread.
//!
//! [`current_thread::Runtime`][rt] is similar to the primary
//! [`Runtime`][concurrent-rt] except that it runs all components on the current
//! thread instead of using a thread pool. This means that it is able to spawn
//! futures that do not implement `Send`.
//!
//! Same as the default [`Runtime`][concurrent-rt], the
//! [`current_thread::Runtime`][rt] includes:
//!
//! * A [reactor] to drive I/O resources.
//! * An [executor] to execute tasks that use these I/O resources.
//! * A [timer] for scheduling work to run after a set period of time.
//!
//! Note that [`current_thread::Runtime`][rt] does not implement `Send` itself
//! and cannot be safely moved to other threads.
//!
//! # Spawning from other threads
//!
//! While [`current_thread::Runtime`][rt] does not implement `Send` and cannot
//! safely be moved to other threads, it provides a `Handle` that can be sent
//! to other threads and allows to spawn new tasks from there.
//!
//! For example:
//!
//! ```
//! # extern crate tokio;
//! # extern crate futures;
//! use tokio::runtime::current_thread::Runtime;
//! use tokio::prelude::*;
//! use std::thread;
//!
//! # fn main() {
//! let mut runtime = Runtime::new().unwrap();
//! let handle = runtime.handle();
//!
//! thread::spawn(move || {
//! handle.spawn(future::ok(()));
//! }).join().unwrap();
//!
//! # /*
//! runtime.run().unwrap();
//! # */
//! # }
//! ```
//!
//! # Examples
//!
//! Creating a new `Runtime` and running a future `f` until its completion and
//! returning its result.
//!
//! ```
//! use tokio::runtime::current_thread::Runtime;
//! use tokio::prelude::*;
//!
//! let mut runtime = Runtime::new().unwrap();
//!
//! // Use the runtime...
//! // runtime.block_on(f); // where f is a future
//! ```
//!
//! [rt]: struct.Runtime.html
//! [concurrent-rt]: ../struct.Runtime.html
//! [chan]: https://docs.rs/futures/0.1/futures/sync/mpsc/fn.channel.html
//! [reactor]: ../../reactor/struct.Reactor.html
//! [executor]: https://tokio.rs/docs/getting-started/runtime-model/#executors
//! [timer]: ../../timer/index.html
mod builder;
mod runtime;
pub use self::builder::Builder;
pub use self::runtime::{Runtime, Handle};
pub use tokio_current_thread::spawn;
pub use tokio_current_thread::TaskExecutor;
use futures::Future;
/// Run the provided future to completion using a runtime running on the current thread.
///
/// This first creates a new [`Runtime`], and calls [`Runtime::block_on`] with the provided future,
/// which blocks the current thread until the provided future completes. It then calls
/// [`Runtime::run`] to wait for any other spawned futures to resolve.
pub fn block_on_all<F>(future: F) -> Result<F::Item, F::Error>
where
F: Future,
{
let mut r = Runtime::new().expect("failed to start runtime on current thread");
let v = r.block_on(future)?;
r.run().expect("failed to resolve remaining futures");
Ok(v)
}

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@@ -1,174 +0,0 @@
use std::error::Error;
use std::{fmt, io};
use futures::Future;
use tokio_current_thread::{self as current_thread, CurrentThread};
use tokio_executor;
use tokio_reactor::{self, Reactor};
use tokio_timer::clock::{self, Clock};
use tokio_timer::timer::{self, Timer};
use crate::builder::Builder;
/// Single-threaded runtime provides a way to start reactor
/// and executor on the current thread.
///
/// See [module level][mod] documentation for more details.
///
/// [mod]: index.html
#[derive(Debug)]
pub struct Runtime {
reactor_handle: tokio_reactor::Handle,
timer_handle: timer::Handle,
clock: Clock,
executor: CurrentThread<Timer<Reactor>>,
}
/// Error returned by the `run` function.
#[derive(Debug)]
pub struct RunError {
inner: current_thread::RunError,
}
impl fmt::Display for RunError {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
write!(fmt, "{}", self.inner)
}
}
impl Error for RunError {
fn description(&self) -> &str {
self.inner.description()
}
fn cause(&self) -> Option<&Error> {
self.inner.source()
}
}
impl Runtime {
#[allow(clippy::new_ret_no_self)]
/// Returns a new runtime initialized with default configuration values.
pub fn new() -> io::Result<Runtime> {
Builder::new().build_rt()
}
pub(super) fn new2(
reactor_handle: tokio_reactor::Handle,
timer_handle: timer::Handle,
clock: Clock,
executor: CurrentThread<Timer<Reactor>>,
) -> Runtime {
Runtime {
reactor_handle,
timer_handle,
clock,
executor,
}
}
/// Spawn a future onto the single-threaded Tokio runtime.
///
/// See [module level][mod] documentation for more details.
///
/// [mod]: index.html
///
/// # Examples
///
/// ```rust
/// # use futures::{future, Future, Stream};
/// use actix_rt::Runtime;
///
/// # fn dox() {
/// // Create the runtime
/// let mut rt = Runtime::new().unwrap();
///
/// // Spawn a future onto the runtime
/// rt.spawn(future::lazy(|| {
/// println!("running on the runtime");
/// Ok(())
/// }));
/// # }
/// # pub fn main() {}
/// ```
///
/// # 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.
pub fn spawn<F>(&mut self, future: F) -> &mut Self
where
F: Future<Item = (), Error = ()> + 'static,
{
self.executor.spawn(future);
self
}
/// Runs the provided future, blocking the current thread until the future
/// completes.
///
/// This function can be used to synchronously block the current thread
/// until the provided `future` has resolved either successfully or with an
/// error. The result of the future is then returned from this function
/// call.
///
/// Note that this function will **also** execute any spawned futures on the
/// current thread, but will **not** block until these other spawned futures
/// have completed. Once the function returns, any uncompleted futures
/// remain pending in the `Runtime` instance. These futures will not run
/// until `block_on` or `run` is called again.
///
/// The caller is responsible for ensuring that other spawned futures
/// complete execution by calling `block_on` or `run`.
pub fn block_on<F>(&mut self, f: F) -> Result<F::Item, F::Error>
where
F: Future,
{
self.enter(|executor| {
// Run the provided future
let ret = executor.block_on(f);
ret.map_err(|e| e.into_inner().expect("unexpected execution error"))
})
}
/// Run the executor to completion, blocking the thread until **all**
/// spawned futures have completed.
pub fn run(&mut self) -> Result<(), RunError> {
self.enter(|executor| executor.run())
.map_err(|e| RunError { inner: e })
}
fn enter<F, R>(&mut self, f: F) -> R
where
F: FnOnce(&mut current_thread::Entered<Timer<Reactor>>) -> R,
{
let Runtime {
ref reactor_handle,
ref timer_handle,
ref clock,
ref mut executor,
..
} = *self;
// Binds an executor to this thread
let mut enter = tokio_executor::enter().expect("Multiple executors at once");
// This will set the default handle and timer to use inside the closure
// and run the future.
tokio_reactor::with_default(&reactor_handle, &mut enter, |enter| {
clock::with_default(clock, enter, |enter| {
timer::with_default(&timer_handle, enter, |enter| {
// The TaskExecutor is a fake executor that looks into the
// current single-threaded executor when used. This is a trick,
// because we need two mutable references to the executor (one
// to run the provided future, another to install as the default
// one). We use the fake one here as the default one.
let mut default_executor = current_thread::TaskExecutor::current();
tokio_executor::with_default(&mut default_executor, enter, |enter| {
let mut executor = executor.enter(enter);
f(&mut executor)
})
})
})
})
}
}

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@@ -1,145 +0,0 @@
use std::cell::RefCell;
use std::io;
use std::sync::atomic::{AtomicUsize, Ordering};
use futures::sync::mpsc::UnboundedSender;
use futures::Future;
use tokio_current_thread::Handle;
use crate::arbiter::{Arbiter, SystemCommand};
use crate::builder::{Builder, SystemRunner};
static SYSTEM_COUNT: AtomicUsize = AtomicUsize::new(0);
/// System is a runtime manager.
#[derive(Clone, Debug)]
pub struct System {
id: usize,
sys: UnboundedSender<SystemCommand>,
arbiter: Arbiter,
stop_on_panic: bool,
}
thread_local!(
static CURRENT: RefCell<Option<System>> = RefCell::new(None);
);
impl System {
/// Constructs new system and sets it as current
pub(crate) fn construct(
sys: UnboundedSender<SystemCommand>,
arbiter: Arbiter,
stop_on_panic: bool,
) -> Self {
let sys = System {
sys,
arbiter,
stop_on_panic,
id: SYSTEM_COUNT.fetch_add(1, Ordering::SeqCst),
};
System::set_current(sys.clone());
sys
}
/// Build a new system with a customized tokio runtime.
///
/// This allows to customize the runtime. See struct level docs on
/// `Builder` for more information.
pub fn builder() -> Builder {
Builder::new()
}
#[allow(clippy::new_ret_no_self)]
/// Create new system.
///
/// This method panics if it can not create tokio runtime
pub fn new<T: Into<String>>(name: T) -> SystemRunner {
Self::builder().name(name).build()
}
#[allow(clippy::new_ret_no_self)]
/// Create new system using provided CurrentThread Handle.
///
/// This method panics if it can not spawn system arbiter
pub fn run_in_executor<T: Into<String>>(
name: T,
executor: Handle,
) -> impl Future<Item = (), Error = io::Error> + Send {
Self::builder()
.name(name)
.build_async(executor)
.run_nonblocking()
}
/// Get current running system.
pub fn current() -> System {
CURRENT.with(|cell| match *cell.borrow() {
Some(ref sys) => sys.clone(),
None => panic!("System is not running"),
})
}
/// Set current running system.
pub(crate) fn is_set() -> bool {
CURRENT.with(|cell| cell.borrow().is_some())
}
/// Set current running system.
#[doc(hidden)]
pub fn set_current(sys: System) {
CURRENT.with(|s| {
*s.borrow_mut() = Some(sys);
})
}
/// Execute function with system reference.
pub fn with_current<F, R>(f: F) -> R
where
F: FnOnce(&System) -> R,
{
CURRENT.with(|cell| match *cell.borrow() {
Some(ref sys) => f(sys),
None => panic!("System is not running"),
})
}
/// System id
pub fn id(&self) -> usize {
self.id
}
/// Stop the system
pub fn stop(&self) {
self.stop_with_code(0)
}
/// Stop the system with a particular exit code.
pub fn stop_with_code(&self, code: i32) {
let _ = self.sys.unbounded_send(SystemCommand::Exit(code));
}
pub(crate) fn sys(&self) -> &UnboundedSender<SystemCommand> {
&self.sys
}
/// Return status of 'stop_on_panic' option which controls whether the System is stopped when an
/// uncaught panic is thrown from a worker thread.
pub fn stop_on_panic(&self) -> bool {
self.stop_on_panic
}
/// System arbiter
pub fn arbiter(&self) -> &Arbiter {
&self.arbiter
}
/// This function will start tokio runtime and will finish once the
/// `System::stop()` message get called.
/// Function `f` get called within tokio runtime context.
pub fn run<F>(f: F) -> io::Result<()>
where
F: FnOnce() + 'static,
{
Self::builder().run(f)
}
}

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@@ -1,38 +0,0 @@
[package]
name = "actix-server-config"
version = "0.1.2"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix server config utils"
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
license = "MIT/Apache-2.0"
edition = "2018"
workspace = ".."
[lib]
name = "actix_server_config"
path = "src/lib.rs"
[package.metadata.docs.rs]
features = ["ssl", "rust-tls", "uds"]
[features]
default = []
# openssl
ssl = ["tokio-openssl"]
# rustls
rust-tls = ["rustls", "tokio-rustls"]
# unix domain sockets
uds = ["tokio-uds"]
[dependencies]
futures = "0.1.25"
tokio-io = "0.1.12"
tokio-tcp = "0.1"
tokio-openssl = { version="0.3.0", optional = true }
rustls = { version = "0.15.2", optional = true }
tokio-rustls = { version = "0.9.1", optional = true }
tokio-uds = { version="0.2.5", optional = true }

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@@ -1 +0,0 @@
../LICENSE-APACHE

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@@ -1 +0,0 @@
../LICENSE-MIT

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@@ -1,14 +0,0 @@
# Changes
## [0.1.2] - 2019-07-18
### Added
* Add unix domnain sockets support
## [0.1.1] - 2019-04-16
### Added
* `IoStream` trait and impls for TcpStream, SslStream and TlsStream

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@@ -1,241 +0,0 @@
use std::cell::Cell;
use std::net::SocketAddr;
use std::rc::Rc;
use std::{fmt, io, net, time};
use tokio_io::{AsyncRead, AsyncWrite};
use tokio_tcp::TcpStream;
#[derive(Debug, Clone)]
pub struct ServerConfig {
addr: SocketAddr,
secure: Rc<Cell<bool>>,
}
impl ServerConfig {
pub fn new(addr: SocketAddr) -> Self {
ServerConfig {
addr,
secure: Rc::new(Cell::new(false)),
}
}
/// Returns the address of the local half of this TCP server socket
pub fn local_addr(&self) -> SocketAddr {
self.addr
}
/// Returns true if connection is secure (tls enabled)
pub fn secure(&self) -> bool {
self.secure.as_ref().get()
}
/// Set secure flag
pub fn set_secure(&self) {
self.secure.as_ref().set(true)
}
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub enum Protocol {
Unknown,
Http10,
Http11,
Http2,
Proto1,
Proto2,
Proto3,
Proto4,
Proto5,
Proto6,
}
pub struct Io<T, P = ()> {
io: T,
proto: Protocol,
params: P,
}
impl<T> Io<T, ()> {
pub fn new(io: T) -> Self {
Self {
io,
proto: Protocol::Unknown,
params: (),
}
}
}
impl<T, P> Io<T, P> {
/// Reconstruct from a parts.
pub fn from_parts(io: T, params: P, proto: Protocol) -> Self {
Self { io, params, proto }
}
/// Deconstruct into a parts.
pub fn into_parts(self) -> (T, P, Protocol) {
(self.io, self.params, self.proto)
}
/// Returns a shared reference to the underlying stream.
pub fn get_ref(&self) -> &T {
&self.io
}
/// Returns a mutable reference to the underlying stream.
pub fn get_mut(&mut self) -> &mut T {
&mut self.io
}
/// Get selected protocol
pub fn protocol(&self) -> Protocol {
self.proto
}
/// Return new Io object with new parameter.
pub fn set<U>(self, params: U) -> Io<T, U> {
Io {
params,
io: self.io,
proto: self.proto,
}
}
/// Maps an Io<_, P> to Io<_, U> by applying a function to a contained value.
pub fn map<U, F>(self, op: F) -> Io<T, U>
where
F: FnOnce(P) -> U,
{
Io {
io: self.io,
proto: self.proto,
params: op(self.params),
}
}
}
impl<T, P> std::ops::Deref for Io<T, P> {
type Target = T;
fn deref(&self) -> &T {
&self.io
}
}
impl<T, P> std::ops::DerefMut for Io<T, P> {
fn deref_mut(&mut self) -> &mut T {
&mut self.io
}
}
impl<T: fmt::Debug, P> fmt::Debug for Io<T, P> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Io {{{:?}}}", self.io)
}
}
/// Low-level io stream operations
pub trait IoStream: AsyncRead + AsyncWrite {
/// Returns the socket address of the remote peer of this TCP connection.
fn peer_addr(&self) -> Option<SocketAddr> {
None
}
/// Sets the value of the TCP_NODELAY option on this socket.
fn set_nodelay(&mut self, nodelay: bool) -> io::Result<()>;
fn set_linger(&mut self, dur: Option<time::Duration>) -> io::Result<()>;
fn set_keepalive(&mut self, dur: Option<time::Duration>) -> io::Result<()>;
}
impl IoStream for TcpStream {
#[inline]
fn peer_addr(&self) -> Option<net::SocketAddr> {
TcpStream::peer_addr(self).ok()
}
#[inline]
fn set_nodelay(&mut self, nodelay: bool) -> io::Result<()> {
TcpStream::set_nodelay(self, nodelay)
}
#[inline]
fn set_linger(&mut self, dur: Option<time::Duration>) -> io::Result<()> {
TcpStream::set_linger(self, dur)
}
#[inline]
fn set_keepalive(&mut self, dur: Option<time::Duration>) -> io::Result<()> {
TcpStream::set_keepalive(self, dur)
}
}
#[cfg(any(feature = "ssl"))]
impl<T: IoStream> IoStream for tokio_openssl::SslStream<T> {
#[inline]
fn peer_addr(&self) -> Option<net::SocketAddr> {
self.get_ref().get_ref().peer_addr()
}
#[inline]
fn set_nodelay(&mut self, nodelay: bool) -> io::Result<()> {
self.get_mut().get_mut().set_nodelay(nodelay)
}
#[inline]
fn set_linger(&mut self, dur: Option<time::Duration>) -> io::Result<()> {
self.get_mut().get_mut().set_linger(dur)
}
#[inline]
fn set_keepalive(&mut self, dur: Option<time::Duration>) -> io::Result<()> {
self.get_mut().get_mut().set_keepalive(dur)
}
}
#[cfg(any(feature = "rust-tls"))]
impl<T: IoStream> IoStream for tokio_rustls::TlsStream<T, rustls::ServerSession> {
#[inline]
fn peer_addr(&self) -> Option<net::SocketAddr> {
self.get_ref().0.peer_addr()
}
#[inline]
fn set_nodelay(&mut self, nodelay: bool) -> io::Result<()> {
self.get_mut().0.set_nodelay(nodelay)
}
#[inline]
fn set_linger(&mut self, dur: Option<time::Duration>) -> io::Result<()> {
self.get_mut().0.set_linger(dur)
}
#[inline]
fn set_keepalive(&mut self, dur: Option<time::Duration>) -> io::Result<()> {
self.get_mut().0.set_keepalive(dur)
}
}
#[cfg(all(unix, feature = "uds"))]
impl IoStream for tokio_uds::UnixStream {
#[inline]
fn peer_addr(&self) -> Option<net::SocketAddr> {
None
}
#[inline]
fn set_nodelay(&mut self, _: bool) -> io::Result<()> {
Ok(())
}
#[inline]
fn set_linger(&mut self, _: Option<time::Duration>) -> io::Result<()> {
Ok(())
}
#[inline]
fn set_keepalive(&mut self, _: Option<time::Duration>) -> io::Result<()> {
Ok(())
}
}

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@@ -1,131 +0,0 @@
# Changes
## [0.6.0] - 2019-07-18
### Added
* Support Unix domain sockets #3
## [0.5.1] - 2019-05-18
### Changed
* ServerBuilder::shutdown_timeout() accepts u64
## [0.5.0] - 2019-05-12
### Added
* Add `Debug` impl for `SslError`
* Derive debug for `Server` and `ServerCommand`
### Changed
* Upgrade to actix-service 0.4
## [0.4.3] - 2019-04-16
### Added
* Re-export `IoStream` trait
### Changed
* Deppend on `ssl` and `rust-tls` features from actix-server-config
## [0.4.2] - 2019-03-30
### Fixed
* Fix SIGINT force shutdown
## [0.4.1] - 2019-03-14
### Added
* `SystemRuntime::on_start()` - allow to run future before server service initialization
## [0.4.0] - 2019-03-12
### Changed
* Use `ServerConfig` for service factory
* Wrap tcp socket to `Io` type
* Upgrade actix-service
## [0.3.1] - 2019-03-04
### Added
* Add `ServerBuilder::maxconnrate` sets the maximum per-worker number of concurrent connections
* Add helper ssl error `SslError`
### Changed
* Rename `StreamServiceFactory` to `ServiceFactory`
* Deprecate `StreamServiceFactory`
## [0.3.0] - 2019-03-02
### Changed
* Use new `NewService` trait
## [0.2.1] - 2019-02-09
### Changed
* Drop service response
## [0.2.0] - 2019-02-01
### Changed
* Migrate to actix-service 0.2
* Updated rustls dependency
## [0.1.3] - 2018-12-21
### Fixed
* Fix max concurrent connections handling
## [0.1.2] - 2018-12-12
### Changed
* rename ServiceConfig::rt() to ServiceConfig::apply()
### Fixed
* Fix back-pressure for concurrent ssl handshakes
## [0.1.1] - 2018-12-11
* Fix signal handling on windows
## [0.1.0] - 2018-12-09
* Move server to separate crate

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@@ -1,76 +0,0 @@
[package]
name = "actix-server"
version = "0.6.0"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix server - General purpose tcp server"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-server/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[package.metadata.docs.rs]
features = ["ssl", "tls", "rust-tls", "uds"]
[lib]
name = "actix_server"
path = "src/lib.rs"
[features]
default = []
# tls
tls = ["native-tls"]
# openssl
ssl = ["openssl", "tokio-openssl", "actix-server-config/ssl"]
# rustls
rust-tls = ["rustls", "tokio-rustls", "webpki", "webpki-roots", "actix-server-config/rust-tls"]
# uds
uds = ["mio-uds", "tokio-uds", "actix-server-config/uds"]
[dependencies]
actix-rt = "0.2.2"
actix-service = "0.4.1"
actix-server-config = "0.1.2"
log = "0.4"
num_cpus = "1.0"
mio = "0.6.19"
net2 = "0.2"
futures = "0.1"
slab = "0.4"
tokio-io = "0.1"
tokio-tcp = "0.1"
tokio-timer = "0.2.8"
tokio-reactor = "0.1"
tokio-signal = "0.2"
# unix domain sockets
mio-uds = { version="0.6.7", optional = true }
tokio-uds = { version="0.2.5", optional = true }
# native-tls
native-tls = { version="0.2", optional = true }
# openssl
openssl = { version="0.10", optional = true }
tokio-openssl = { version="0.3", optional = true }
# rustls
rustls = { version = "0.15.2", optional = true }
tokio-rustls = { version = "0.9.1", optional = true }
webpki = { version = "0.19", optional = true }
webpki-roots = { version = "0.16", optional = true }
[dev-dependencies]
bytes = "0.4"
actix-codec = "0.1.2"
env_logger = "0.6"

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@@ -1 +0,0 @@
../LICENSE-APACHE

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@@ -1 +0,0 @@
../LICENSE-MIT

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@@ -1,482 +0,0 @@
use std::time::Duration;
use std::{io, mem, net};
use actix_rt::{spawn, Arbiter, System};
use futures::future::{lazy, ok};
use futures::stream::futures_unordered;
use futures::sync::mpsc::{unbounded, UnboundedReceiver};
use futures::{Async, Future, Poll, Stream};
use log::{error, info};
use net2::TcpBuilder;
use num_cpus;
use tokio_tcp::TcpStream;
use tokio_timer::sleep;
use crate::accept::{AcceptLoop, AcceptNotify, Command};
use crate::config::{ConfiguredService, ServiceConfig};
use crate::server::{Server, ServerCommand};
use crate::services::{InternalServiceFactory, ServiceFactory, StreamNewService};
use crate::signals::{Signal, Signals};
use crate::socket::StdListener;
use crate::worker::{self, Worker, WorkerAvailability, WorkerClient};
use crate::{ssl, Token};
/// Server builder
pub struct ServerBuilder {
threads: usize,
token: Token,
backlog: i32,
workers: Vec<(usize, WorkerClient)>,
services: Vec<Box<dyn InternalServiceFactory>>,
sockets: Vec<(Token, StdListener)>,
accept: AcceptLoop,
exit: bool,
shutdown_timeout: Duration,
no_signals: bool,
cmd: UnboundedReceiver<ServerCommand>,
server: Server,
}
impl Default for ServerBuilder {
fn default() -> Self {
Self::new()
}
}
impl ServerBuilder {
/// Create new Server builder instance
pub fn new() -> ServerBuilder {
let (tx, rx) = unbounded();
let server = Server::new(tx);
ServerBuilder {
threads: num_cpus::get(),
token: Token(0),
workers: Vec::new(),
services: Vec::new(),
sockets: Vec::new(),
accept: AcceptLoop::new(server.clone()),
backlog: 2048,
exit: false,
shutdown_timeout: Duration::from_secs(30),
no_signals: false,
cmd: rx,
server,
}
}
/// Set number of workers to start.
///
/// By default server uses number of available logical cpu as workers
/// count.
pub fn workers(mut self, num: usize) -> Self {
self.threads = num;
self
}
/// Set the maximum number of pending connections.
///
/// This refers to the number of clients that can be waiting to be served.
/// Exceeding this number results in the client getting an error when
/// attempting to connect. It should only affect servers under significant
/// load.
///
/// Generally set in the 64-2048 range. Default value is 2048.
///
/// This method should be called before `bind()` method call.
pub fn backlog(mut self, num: i32) -> Self {
self.backlog = num;
self
}
/// Sets the maximum per-worker number of concurrent connections.
///
/// All socket listeners will stop accepting connections when this limit is
/// reached for each worker.
///
/// By default max connections is set to a 25k per worker.
pub fn maxconn(self, num: usize) -> Self {
worker::max_concurrent_connections(num);
self
}
/// Sets the maximum per-worker concurrent connection establish process.
///
/// All listeners will stop accepting connections when this limit is reached. It
/// can be used to limit the global SSL CPU usage.
///
/// By default max connections is set to a 256.
pub fn maxconnrate(self, num: usize) -> Self {
ssl::max_concurrent_ssl_connect(num);
self
}
/// Stop actix system.
pub fn system_exit(mut self) -> Self {
self.exit = true;
self
}
/// Disable signal handling
pub fn disable_signals(mut self) -> Self {
self.no_signals = true;
self
}
/// Timeout for graceful workers shutdown in seconds.
///
/// After receiving a stop signal, workers have this much time to finish
/// serving requests. Workers still alive after the timeout are force
/// dropped.
///
/// By default shutdown timeout sets to 30 seconds.
pub fn shutdown_timeout(mut self, sec: u64) -> Self {
self.shutdown_timeout = Duration::from_secs(sec);
self
}
/// Execute external configuration as part of the server building
/// process.
///
/// This function is useful for moving parts of configuration to a
/// different module or even library.
pub fn configure<F>(mut self, f: F) -> io::Result<ServerBuilder>
where
F: Fn(&mut ServiceConfig) -> io::Result<()>,
{
let mut cfg = ServiceConfig::new(self.threads, self.backlog);
f(&mut cfg)?;
if let Some(apply) = cfg.apply {
let mut srv = ConfiguredService::new(apply);
for (name, lst) in cfg.services {
let token = self.token.next();
srv.stream(token, name, lst.local_addr()?);
self.sockets.push((token, StdListener::Tcp(lst)));
}
self.services.push(Box::new(srv));
}
self.threads = cfg.threads;
Ok(self)
}
/// 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>
where
F: ServiceFactory<TcpStream>,
U: net::ToSocketAddrs,
{
let sockets = bind_addr(addr, self.backlog)?;
for lst in sockets {
let token = self.token.next();
self.services.push(StreamNewService::create(
name.as_ref().to_string(),
token,
factory.clone(),
lst.local_addr()?,
));
self.sockets.push((token, StdListener::Tcp(lst)));
}
Ok(self)
}
#[cfg(all(unix, feature = "uds"))]
/// Add new unix domain service to the server.
pub fn bind_uds<F, U, N>(mut self, name: N, addr: U, factory: F) -> io::Result<Self>
where
F: ServiceFactory<tokio_uds::UnixStream>,
N: AsRef<str>,
U: AsRef<std::path::Path>,
{
use std::net::{IpAddr, Ipv4Addr, SocketAddr};
use std::os::unix::net::UnixListener;
// TODO: need to do something with existing paths
let _ = std::fs::remove_file(addr.as_ref());
let lst = UnixListener::bind(addr)?;
let token = self.token.next();
let addr = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
self.services.push(StreamNewService::create(
name.as_ref().to_string(),
token,
factory.clone(),
addr,
));
self.sockets.push((token, StdListener::Uds(lst)));
Ok(self)
}
/// Add new service to the server.
pub fn listen<F, N: AsRef<str>>(
mut self,
name: N,
lst: net::TcpListener,
factory: F,
) -> io::Result<Self>
where
F: ServiceFactory<TcpStream>,
{
let token = self.token.next();
self.services.push(StreamNewService::create(
name.as_ref().to_string(),
token,
factory,
lst.local_addr()?,
));
self.sockets.push((token, StdListener::Tcp(lst)));
Ok(self)
}
/// Spawn new thread and start listening for incoming connections.
///
/// This method spawns new thread and starts new actix system. Other than
/// that it is similar to `start()` method. This method blocks.
///
/// This methods panics if no socket addresses get bound.
///
/// ```rust,ignore
/// use actix_web::*;
///
/// fn main() -> std::io::Result<()> {
/// Server::new().
/// .service(
/// HttpServer::new(|| App::new().service(web::service("/").to(|| HttpResponse::Ok())))
/// .bind("127.0.0.1:0")
/// .run()
/// }
/// ```
pub fn run(self) -> io::Result<()> {
let sys = System::new("http-server");
self.start();
sys.run()
}
/// Starts processing incoming connections and return server controller.
pub fn start(mut self) -> Server {
if self.sockets.is_empty() {
panic!("Server should have at least one bound socket");
} else {
info!("Starting {} workers", self.threads);
// start workers
let mut workers = Vec::new();
for idx in 0..self.threads {
let worker = self.start_worker(idx, self.accept.get_notify());
workers.push(worker.clone());
self.workers.push((idx, worker));
}
// start accept thread
for sock in &self.sockets {
info!("Starting server on {}", sock.1);
}
self.accept
.start(mem::replace(&mut self.sockets, Vec::new()), workers);
// handle signals
if !self.no_signals {
Signals::start(self.server.clone());
}
// start http server actor
let server = self.server.clone();
spawn(self);
server
}
}
fn start_worker(&self, idx: usize, notify: AcceptNotify) -> WorkerClient {
let (tx1, rx1) = unbounded();
let (tx2, rx2) = unbounded();
let timeout = self.shutdown_timeout;
let avail = WorkerAvailability::new(notify);
let worker = WorkerClient::new(idx, tx1, tx2, avail.clone());
let services: Vec<Box<dyn InternalServiceFactory>> =
self.services.iter().map(|v| v.clone_factory()).collect();
Arbiter::new().send(lazy(move || {
Worker::start(rx1, rx2, services, avail, timeout);
Ok::<_, ()>(())
}));
worker
}
fn handle_cmd(&mut self, item: ServerCommand) {
match item {
ServerCommand::Pause(tx) => {
self.accept.send(Command::Pause);
let _ = tx.send(());
}
ServerCommand::Resume(tx) => {
self.accept.send(Command::Resume);
let _ = tx.send(());
}
ServerCommand::Signal(sig) => {
// Signals support
// Handle `SIGINT`, `SIGTERM`, `SIGQUIT` signals and stop actix system
match sig {
Signal::Int => {
info!("SIGINT received, exiting");
self.exit = true;
self.handle_cmd(ServerCommand::Stop {
graceful: false,
completion: None,
})
}
Signal::Term => {
info!("SIGTERM received, stopping");
self.exit = true;
self.handle_cmd(ServerCommand::Stop {
graceful: true,
completion: None,
})
}
Signal::Quit => {
info!("SIGQUIT received, exiting");
self.exit = true;
self.handle_cmd(ServerCommand::Stop {
graceful: false,
completion: None,
})
}
_ => (),
}
}
ServerCommand::Stop {
graceful,
completion,
} => {
let exit = self.exit;
// stop accept thread
self.accept.send(Command::Stop);
// stop workers
if !self.workers.is_empty() && graceful {
spawn(
futures_unordered(
self.workers
.iter()
.map(move |worker| worker.1.stop(graceful)),
)
.collect()
.then(move |_| {
if let Some(tx) = completion {
let _ = tx.send(());
}
if exit {
spawn(sleep(Duration::from_millis(300)).then(|_| {
System::current().stop();
ok(())
}));
}
ok(())
}),
)
} else {
// we need to stop system if server was spawned
if self.exit {
spawn(sleep(Duration::from_millis(300)).then(|_| {
System::current().stop();
ok(())
}));
}
if let Some(tx) = completion {
let _ = tx.send(());
}
}
}
ServerCommand::WorkerDied(idx) => {
let mut found = false;
for i in 0..self.workers.len() {
if self.workers[i].0 == idx {
self.workers.swap_remove(i);
found = true;
break;
}
}
if found {
error!("Worker has died {:?}, restarting", idx);
let mut new_idx = self.workers.len();
'found: loop {
for i in 0..self.workers.len() {
if self.workers[i].0 == new_idx {
new_idx += 1;
continue 'found;
}
}
break;
}
let worker = self.start_worker(new_idx, self.accept.get_notify());
self.workers.push((new_idx, worker.clone()));
self.accept.send(Command::Worker(worker));
}
}
}
}
}
impl Future for ServerBuilder {
type Item = ();
type Error = ();
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
loop {
match self.cmd.poll() {
Ok(Async::Ready(None)) | Err(_) => return Ok(Async::Ready(())),
Ok(Async::NotReady) => return Ok(Async::NotReady),
Ok(Async::Ready(Some(item))) => self.handle_cmd(item),
}
}
}
}
pub(super) fn bind_addr<S: net::ToSocketAddrs>(
addr: S,
backlog: i32,
) -> io::Result<Vec<net::TcpListener>> {
let mut err = None;
let mut succ = false;
let mut sockets = Vec::new();
for addr in addr.to_socket_addrs()? {
match create_tcp_listener(addr, backlog) {
Ok(lst) => {
succ = true;
sockets.push(lst);
}
Err(e) => err = Some(e),
}
}
if !succ {
if let Some(e) = err.take() {
Err(e)
} else {
Err(io::Error::new(
io::ErrorKind::Other,
"Can not bind to address.",
))
}
} else {
Ok(sockets)
}
}
fn create_tcp_listener(addr: net::SocketAddr, backlog: i32) -> io::Result<net::TcpListener> {
let builder = match addr {
net::SocketAddr::V4(_) => TcpBuilder::new_v4()?,
net::SocketAddr::V6(_) => TcpBuilder::new_v6()?,
};
builder.reuse_address(true)?;
builder.bind(addr)?;
Ok(builder.listen(backlog)?)
}

View File

@@ -1,276 +0,0 @@
use std::collections::HashMap;
use std::{fmt, io, net};
use actix_server_config::{Io, ServerConfig};
use actix_service::{IntoNewService, NewService};
use futures::future::{join_all, Future};
use log::error;
use tokio_tcp::TcpStream;
use crate::counter::CounterGuard;
use super::builder::bind_addr;
use super::services::{
BoxedServerService, InternalServiceFactory, ServerMessage, StreamService,
};
use super::Token;
pub struct ServiceConfig {
pub(crate) services: Vec<(String, net::TcpListener)>,
pub(crate) apply: Option<Box<dyn ServiceRuntimeConfiguration>>,
pub(crate) threads: usize,
pub(crate) backlog: i32,
}
impl ServiceConfig {
pub(super) fn new(threads: usize, backlog: i32) -> ServiceConfig {
ServiceConfig {
threads,
backlog,
services: Vec::new(),
apply: None,
}
}
/// Set number of workers to start.
///
/// By default server uses number of available logical cpu as workers
/// count.
pub fn workers(&mut self, num: usize) {
self.threads = num;
}
/// Add new service to server
pub fn bind<U, N: AsRef<str>>(&mut self, name: N, addr: U) -> io::Result<&mut Self>
where
U: net::ToSocketAddrs,
{
let sockets = bind_addr(addr, self.backlog)?;
for lst in sockets {
self.listen(name.as_ref(), lst);
}
Ok(self)
}
/// Add new service to server
pub fn listen<N: AsRef<str>>(&mut self, name: N, lst: net::TcpListener) -> &mut Self {
if self.apply.is_none() {
self.apply = Some(Box::new(not_configured));
}
self.services.push((name.as_ref().to_string(), lst));
self
}
/// Register service configuration function. This function get called
/// during worker runtime configuration. It get executed in worker thread.
pub fn apply<F>(&mut self, f: F) -> io::Result<()>
where
F: Fn(&mut ServiceRuntime) + Send + Clone + 'static,
{
self.apply = Some(Box::new(f));
Ok(())
}
}
pub(super) struct ConfiguredService {
rt: Box<dyn ServiceRuntimeConfiguration>,
names: HashMap<Token, (String, net::SocketAddr)>,
services: HashMap<String, Token>,
}
impl ConfiguredService {
pub(super) fn new(rt: Box<dyn ServiceRuntimeConfiguration>) -> Self {
ConfiguredService {
rt,
names: HashMap::new(),
services: HashMap::new(),
}
}
pub(super) fn stream(&mut self, token: Token, name: String, addr: net::SocketAddr) {
self.names.insert(token, (name.clone(), addr));
self.services.insert(name, token);
}
}
impl InternalServiceFactory for ConfiguredService {
fn name(&self, token: Token) -> &str {
&self.names[&token].0
}
fn clone_factory(&self) -> Box<dyn InternalServiceFactory> {
Box::new(Self {
rt: self.rt.clone(),
names: self.names.clone(),
services: self.services.clone(),
})
}
fn create(&self) -> Box<dyn Future<Item = Vec<(Token, BoxedServerService)>, Error = ()>> {
// configure services
let mut rt = ServiceRuntime::new(self.services.clone());
self.rt.configure(&mut rt);
rt.validate();
let services = rt.services;
// on start futures
if rt.onstart.is_empty() {
// construct services
let mut fut = Vec::new();
for (token, ns) in services {
let config = ServerConfig::new(self.names[&token].1);
fut.push(ns.new_service(&config).map(move |service| (token, service)));
}
Box::new(join_all(fut).map_err(|e| {
error!("Can not construct service: {:?}", e);
}))
} else {
let names = self.names.clone();
// run onstart future and then construct services
Box::new(
join_all(rt.onstart)
.map_err(|e| {
error!("Can not construct service: {:?}", e);
})
.and_then(move |_| {
// construct services
let mut fut = Vec::new();
for (token, ns) in services {
let config = ServerConfig::new(names[&token].1);
fut.push(
ns.new_service(&config).map(move |service| (token, service)),
);
}
join_all(fut).map_err(|e| {
error!("Can not construct service: {:?}", e);
})
}),
)
}
}
}
pub(super) trait ServiceRuntimeConfiguration: Send {
fn clone(&self) -> Box<dyn ServiceRuntimeConfiguration>;
fn configure(&self, rt: &mut ServiceRuntime);
}
impl<F> ServiceRuntimeConfiguration for F
where
F: Fn(&mut ServiceRuntime) + Send + Clone + 'static,
{
fn clone(&self) -> Box<dyn ServiceRuntimeConfiguration> {
Box::new(self.clone())
}
fn configure(&self, rt: &mut ServiceRuntime) {
(self)(rt)
}
}
fn not_configured(_: &mut ServiceRuntime) {
error!("Service is not configured");
}
pub struct ServiceRuntime {
names: HashMap<String, Token>,
services: HashMap<Token, BoxedNewService>,
onstart: Vec<Box<dyn Future<Item = (), Error = ()>>>,
}
impl ServiceRuntime {
fn new(names: HashMap<String, Token>) -> Self {
ServiceRuntime {
names,
services: HashMap::new(),
onstart: Vec::new(),
}
}
fn validate(&self) {
for (name, token) in &self.names {
if !self.services.contains_key(&token) {
error!("Service {:?} is not configured", name);
}
}
}
/// Register service.
///
/// Name of the service must be registered during configuration stage with
/// *ServiceConfig::bind()* or *ServiceConfig::listen()* methods.
pub fn service<T, F>(&mut self, name: &str, service: F)
where
F: IntoNewService<T>,
T: NewService<Config = ServerConfig, Request = Io<TcpStream>> + 'static,
T::Future: 'static,
T::Service: 'static,
T::InitError: fmt::Debug,
{
// let name = name.to_owned();
if let Some(token) = self.names.get(name) {
self.services.insert(
token.clone(),
Box::new(ServiceFactory {
inner: service.into_new_service(),
}),
);
} else {
panic!("Unknown service: {:?}", name);
}
}
/// Execute future before services initialization.
pub fn on_start<F>(&mut self, fut: F)
where
F: Future<Item = (), Error = ()> + 'static,
{
self.onstart.push(Box::new(fut))
}
}
type BoxedNewService = Box<
dyn NewService<
Request = (Option<CounterGuard>, ServerMessage),
Response = (),
Error = (),
InitError = (),
Config = ServerConfig,
Service = BoxedServerService,
Future = Box<dyn Future<Item = BoxedServerService, Error = ()>>,
>,
>;
struct ServiceFactory<T> {
inner: T,
}
impl<T> NewService for ServiceFactory<T>
where
T: NewService<Config = ServerConfig, Request = Io<TcpStream>>,
T::Future: 'static,
T::Service: 'static,
T::Error: 'static,
T::InitError: fmt::Debug + 'static,
{
type Request = (Option<CounterGuard>, ServerMessage);
type Response = ();
type Error = ();
type InitError = ();
type Config = ServerConfig;
type Service = BoxedServerService;
type Future = Box<dyn Future<Item = BoxedServerService, Error = ()>>;
fn new_service(&self, cfg: &ServerConfig) -> Self::Future {
Box::new(self.inner.new_service(cfg).map_err(|_| ()).map(|s| {
let service: BoxedServerService = Box::new(StreamService::new(s));
service
}))
}
}

View File

@@ -1,42 +0,0 @@
//! General purpose tcp server
mod accept;
mod builder;
mod config;
mod counter;
mod server;
mod services;
mod signals;
mod socket;
pub mod ssl;
mod worker;
pub use actix_server_config::{Io, IoStream, Protocol, ServerConfig};
pub use self::builder::ServerBuilder;
pub use self::config::{ServiceConfig, ServiceRuntime};
pub use self::server::Server;
pub use self::services::ServiceFactory;
#[doc(hidden)]
pub use self::socket::FromStream;
#[doc(hidden)]
pub use self::services::ServiceFactory as StreamServiceFactory;
/// Socket id token
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
pub(crate) struct Token(usize);
impl Token {
pub(crate) fn next(&mut self) -> Token {
let token = Token(self.0 + 1);
self.0 += 1;
token
}
}
/// Start server building process
pub fn new() -> ServerBuilder {
ServerBuilder::default()
}

View File

@@ -1,70 +0,0 @@
use futures::sync::mpsc::UnboundedSender;
use futures::sync::oneshot;
use futures::Future;
use crate::builder::ServerBuilder;
use crate::signals::Signal;
#[derive(Debug)]
pub(crate) enum ServerCommand {
WorkerDied(usize),
Pause(oneshot::Sender<()>),
Resume(oneshot::Sender<()>),
Signal(Signal),
/// Whether to try and shut down gracefully
Stop {
graceful: bool,
completion: Option<oneshot::Sender<()>>,
},
}
#[derive(Debug, Clone)]
pub struct Server(UnboundedSender<ServerCommand>);
impl Server {
pub(crate) fn new(tx: UnboundedSender<ServerCommand>) -> Self {
Server(tx)
}
/// Start server building process
pub fn build() -> ServerBuilder {
ServerBuilder::default()
}
pub(crate) fn signal(&self, sig: Signal) {
let _ = self.0.unbounded_send(ServerCommand::Signal(sig));
}
pub(crate) fn worker_died(&self, idx: usize) {
let _ = self.0.unbounded_send(ServerCommand::WorkerDied(idx));
}
/// Pause accepting incoming connections
///
/// If socket contains some pending connection, they might be dropped.
/// All opened connection remains active.
pub fn pause(&self) -> impl Future<Item = (), Error = ()> {
let (tx, rx) = oneshot::channel();
let _ = self.0.unbounded_send(ServerCommand::Pause(tx));
rx.map_err(|_| ())
}
/// Resume accepting incoming connections
pub fn resume(&self) -> impl Future<Item = (), Error = ()> {
let (tx, rx) = oneshot::channel();
let _ = self.0.unbounded_send(ServerCommand::Resume(tx));
rx.map_err(|_| ())
}
/// Stop incoming connection processing, stop all workers and exit.
///
/// If server starts with `spawn()` method, then spawned thread get terminated.
pub fn stop(&self, graceful: bool) -> impl Future<Item = (), Error = ()> {
let (tx, rx) = oneshot::channel();
let _ = self.0.unbounded_send(ServerCommand::Stop {
graceful,
completion: Some(tx),
});
rx.map_err(|_| ())
}
}

View File

@@ -1,186 +0,0 @@
use std::marker::PhantomData;
use std::net::SocketAddr;
use std::time::Duration;
use actix_rt::spawn;
use actix_server_config::{Io, ServerConfig};
use actix_service::{NewService, Service};
use futures::future::{err, ok, FutureResult};
use futures::{Future, Poll};
use log::error;
use super::Token;
use crate::counter::CounterGuard;
use crate::socket::{FromStream, StdStream};
/// Server message
pub(crate) enum ServerMessage {
/// New stream
Connect(StdStream),
/// Gracefull shutdown
Shutdown(Duration),
/// Force shutdown
ForceShutdown,
}
pub trait ServiceFactory<Stream: FromStream>: Send + Clone + 'static {
type NewService: NewService<Config = ServerConfig, Request = Io<Stream>>;
fn create(&self) -> Self::NewService;
}
pub(crate) trait InternalServiceFactory: Send {
fn name(&self, token: Token) -> &str;
fn clone_factory(&self) -> Box<dyn InternalServiceFactory>;
fn create(&self) -> Box<dyn Future<Item = Vec<(Token, BoxedServerService)>, Error = ()>>;
}
pub(crate) type BoxedServerService = Box<
dyn Service<
Request = (Option<CounterGuard>, ServerMessage),
Response = (),
Error = (),
Future = FutureResult<(), ()>,
>,
>;
pub(crate) struct StreamService<T> {
service: T,
}
impl<T> StreamService<T> {
pub(crate) fn new(service: T) -> Self {
StreamService { service }
}
}
impl<T, I> Service for StreamService<T>
where
T: Service<Request = Io<I>>,
T::Future: 'static,
T::Error: 'static,
I: FromStream,
{
type Request = (Option<CounterGuard>, ServerMessage);
type Response = ();
type Error = ();
type Future = FutureResult<(), ()>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
self.service.poll_ready().map_err(|_| ())
}
fn call(&mut self, (guard, req): (Option<CounterGuard>, ServerMessage)) -> Self::Future {
match req {
ServerMessage::Connect(stream) => {
let stream = FromStream::from_stdstream(stream).map_err(|e| {
error!("Can not convert to an async tcp stream: {}", e);
});
if let Ok(stream) = stream {
spawn(self.service.call(Io::new(stream)).then(move |res| {
drop(guard);
res.map_err(|_| ()).map(|_| ())
}));
ok(())
} else {
err(())
}
}
_ => ok(()),
}
}
}
pub(crate) struct StreamNewService<F: ServiceFactory<Io>, Io: FromStream> {
name: String,
inner: F,
token: Token,
addr: SocketAddr,
_t: PhantomData<Io>,
}
impl<F, Io> StreamNewService<F, Io>
where
F: ServiceFactory<Io>,
Io: FromStream + Send + 'static,
{
pub(crate) fn create(
name: String,
token: Token,
inner: F,
addr: SocketAddr,
) -> Box<dyn InternalServiceFactory> {
Box::new(Self {
name,
token,
inner,
addr,
_t: PhantomData,
})
}
}
impl<F, Io> InternalServiceFactory for StreamNewService<F, Io>
where
F: ServiceFactory<Io>,
Io: FromStream + Send + 'static,
{
fn name(&self, _: Token) -> &str {
&self.name
}
fn clone_factory(&self) -> Box<dyn InternalServiceFactory> {
Box::new(Self {
name: self.name.clone(),
inner: self.inner.clone(),
token: self.token,
addr: self.addr,
_t: PhantomData,
})
}
fn create(&self) -> Box<dyn Future<Item = Vec<(Token, BoxedServerService)>, Error = ()>> {
let token = self.token;
let config = ServerConfig::new(self.addr);
Box::new(
self.inner
.create()
.new_service(&config)
.map_err(|_| ())
.map(move |inner| {
let service: BoxedServerService = Box::new(StreamService::new(inner));
vec![(token, service)]
}),
)
}
}
impl InternalServiceFactory for Box<dyn InternalServiceFactory> {
fn name(&self, token: Token) -> &str {
self.as_ref().name(token)
}
fn clone_factory(&self) -> Box<dyn InternalServiceFactory> {
self.as_ref().clone_factory()
}
fn create(&self) -> Box<dyn Future<Item = Vec<(Token, BoxedServerService)>, Error = ()>> {
self.as_ref().create()
}
}
impl<F, T, I> ServiceFactory<I> for F
where
F: Fn() -> T + Send + Clone + 'static,
T: NewService<Config = ServerConfig, Request = Io<I>>,
I: FromStream,
{
type NewService = T;
fn create(&self) -> T {
(self)()
}
}

View File

@@ -1,118 +0,0 @@
use std::io;
use actix_rt::spawn;
use futures::stream::futures_unordered;
use futures::{Async, Future, Poll, Stream};
use crate::server::Server;
/// Different types of process signals
#[derive(PartialEq, Clone, Copy, Debug)]
pub(crate) enum Signal {
/// SIGHUP
Hup,
/// SIGINT
Int,
/// SIGTERM
Term,
/// SIGQUIT
Quit,
}
pub(crate) struct Signals {
srv: Server,
#[cfg(not(unix))]
stream: SigStream,
#[cfg(unix)]
streams: Vec<SigStream>,
}
type SigStream = Box<dyn Stream<Item = Signal, Error = io::Error>>;
impl Signals {
pub(crate) fn start(srv: Server) {
let fut = {
#[cfg(not(unix))]
{
tokio_signal::ctrl_c()
.map_err(|_| ())
.and_then(move |stream| Signals {
srv,
stream: Box::new(stream.map(|_| Signal::Int)),
})
}
#[cfg(unix)]
{
use tokio_signal::unix;
let mut sigs: Vec<Box<dyn Future<Item = SigStream, Error = io::Error>>> =
Vec::new();
sigs.push(Box::new(
tokio_signal::unix::Signal::new(tokio_signal::unix::SIGINT).map(|stream| {
let s: SigStream = Box::new(stream.map(|_| Signal::Int));
s
}),
));
sigs.push(Box::new(
tokio_signal::unix::Signal::new(tokio_signal::unix::SIGHUP).map(
|stream: unix::Signal| {
let s: SigStream = Box::new(stream.map(|_| Signal::Hup));
s
},
),
));
sigs.push(Box::new(
tokio_signal::unix::Signal::new(tokio_signal::unix::SIGTERM).map(
|stream| {
let s: SigStream = Box::new(stream.map(|_| Signal::Term));
s
},
),
));
sigs.push(Box::new(
tokio_signal::unix::Signal::new(tokio_signal::unix::SIGQUIT).map(
|stream| {
let s: SigStream = Box::new(stream.map(|_| Signal::Quit));
s
},
),
));
futures_unordered(sigs)
.collect()
.map_err(|_| ())
.and_then(move |streams| Signals { srv, streams })
}
};
spawn(fut);
}
}
impl Future for Signals {
type Item = ();
type Error = ();
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
#[cfg(not(unix))]
loop {
match self.stream.poll() {
Ok(Async::Ready(None)) | Err(_) => return Ok(Async::Ready(())),
Ok(Async::Ready(Some(sig))) => self.srv.signal(sig),
Ok(Async::NotReady) => return Ok(Async::NotReady),
}
}
#[cfg(unix)]
{
for s in &mut self.streams {
loop {
match s.poll() {
Ok(Async::Ready(None)) | Err(_) => return Ok(Async::Ready(())),
Ok(Async::NotReady) => break,
Ok(Async::Ready(Some(sig))) => self.srv.signal(sig),
}
}
}
Ok(Async::NotReady)
}
}
}

View File

@@ -1,173 +0,0 @@
use std::{fmt, io, net};
use tokio_io::{AsyncRead, AsyncWrite};
use tokio_reactor::Handle;
use tokio_tcp::TcpStream;
pub(crate) enum StdListener {
Tcp(net::TcpListener),
#[cfg(all(unix, feature = "uds"))]
Uds(std::os::unix::net::UnixListener),
}
pub(crate) enum SocketAddr {
Tcp(net::SocketAddr),
#[cfg(all(unix, feature = "uds"))]
Uds(std::os::unix::net::SocketAddr),
}
impl fmt::Display for SocketAddr {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
SocketAddr::Tcp(ref addr) => write!(f, "{}", addr),
#[cfg(all(unix, feature = "uds"))]
SocketAddr::Uds(ref addr) => write!(f, "{:?}", addr),
}
}
}
impl fmt::Debug for SocketAddr {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
SocketAddr::Tcp(ref addr) => write!(f, "{:?}", addr),
#[cfg(all(unix, feature = "uds"))]
SocketAddr::Uds(ref addr) => write!(f, "{:?}", addr),
}
}
}
impl fmt::Display for StdListener {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
StdListener::Tcp(ref lst) => write!(f, "{}", lst.local_addr().ok().unwrap()),
#[cfg(all(unix, feature = "uds"))]
StdListener::Uds(ref lst) => write!(f, "{:?}", lst.local_addr().ok().unwrap()),
}
}
}
impl StdListener {
pub(crate) fn local_addr(&self) -> SocketAddr {
match self {
StdListener::Tcp(lst) => SocketAddr::Tcp(lst.local_addr().unwrap()),
#[cfg(all(unix, feature = "uds"))]
StdListener::Uds(lst) => SocketAddr::Uds(lst.local_addr().unwrap()),
}
}
pub(crate) fn into_listener(self) -> SocketListener {
match self {
StdListener::Tcp(lst) => SocketListener::Tcp(
mio::net::TcpListener::from_std(lst)
.expect("Can not create mio::net::TcpListener"),
),
#[cfg(all(unix, feature = "uds"))]
StdListener::Uds(lst) => SocketListener::Uds(
mio_uds::UnixListener::from_listener(lst)
.expect("Can not create mio_uds::UnixListener"),
),
}
}
}
#[derive(Debug)]
pub enum StdStream {
Tcp(std::net::TcpStream),
#[cfg(all(unix, feature = "uds"))]
Uds(std::os::unix::net::UnixStream),
}
pub(crate) enum SocketListener {
Tcp(mio::net::TcpListener),
#[cfg(all(unix, feature = "uds"))]
Uds(mio_uds::UnixListener),
}
impl SocketListener {
pub(crate) fn accept(&self) -> io::Result<Option<(StdStream, SocketAddr)>> {
match *self {
SocketListener::Tcp(ref lst) => lst
.accept_std()
.map(|(stream, addr)| Some((StdStream::Tcp(stream), SocketAddr::Tcp(addr)))),
#[cfg(all(unix, feature = "uds"))]
SocketListener::Uds(ref lst) => lst.accept_std().map(|res| {
res.map(|(stream, addr)| (StdStream::Uds(stream), SocketAddr::Uds(addr)))
}),
}
}
}
impl mio::Evented for SocketListener {
fn register(
&self,
poll: &mio::Poll,
token: mio::Token,
interest: mio::Ready,
opts: mio::PollOpt,
) -> io::Result<()> {
match *self {
SocketListener::Tcp(ref lst) => lst.register(poll, token, interest, opts),
#[cfg(all(unix, feature = "uds"))]
SocketListener::Uds(ref lst) => lst.register(poll, token, interest, opts),
}
}
fn reregister(
&self,
poll: &mio::Poll,
token: mio::Token,
interest: mio::Ready,
opts: mio::PollOpt,
) -> io::Result<()> {
match *self {
SocketListener::Tcp(ref lst) => lst.reregister(poll, token, interest, opts),
#[cfg(all(unix, feature = "uds"))]
SocketListener::Uds(ref lst) => lst.reregister(poll, token, interest, opts),
}
}
fn deregister(&self, poll: &mio::Poll) -> io::Result<()> {
match *self {
SocketListener::Tcp(ref lst) => lst.deregister(poll),
#[cfg(all(unix, feature = "uds"))]
SocketListener::Uds(ref lst) => {
let res = lst.deregister(poll);
// cleanup file path
if let Ok(addr) = lst.local_addr() {
if let Some(path) = addr.as_pathname() {
let _ = std::fs::remove_file(path);
}
}
res
}
}
}
}
pub trait FromStream: AsyncRead + AsyncWrite + Sized {
fn from_stdstream(sock: StdStream) -> io::Result<Self>;
}
impl FromStream for TcpStream {
fn from_stdstream(sock: StdStream) -> io::Result<Self> {
match sock {
StdStream::Tcp(stream) => TcpStream::from_std(stream, &Handle::default()),
#[cfg(all(unix, feature = "uds"))]
StdStream::Uds(_) => {
panic!("Should not happen, bug in server impl");
}
}
}
}
#[cfg(all(unix, feature = "uds"))]
impl FromStream for tokio_uds::UnixStream {
fn from_stdstream(sock: StdStream) -> io::Result<Self> {
match sock {
StdStream::Tcp(_) => panic!("Should not happen, bug in server impl"),
StdStream::Uds(stream) => {
tokio_uds::UnixStream::from_std(stream, &Handle::default())
}
}
}
}

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@@ -1,130 +0,0 @@
use std::marker::PhantomData;
use actix_service::{NewService, Service};
use futures::{future::ok, future::FutureResult, Async, Future, Poll};
use openssl::ssl::{HandshakeError, SslAcceptor};
use tokio_io::{AsyncRead, AsyncWrite};
use tokio_openssl::{AcceptAsync, SslAcceptorExt, SslStream};
use crate::counter::{Counter, CounterGuard};
use crate::ssl::MAX_CONN_COUNTER;
use crate::{Io, Protocol, ServerConfig};
/// Support `SSL` connections via openssl package
///
/// `ssl` feature enables `OpensslAcceptor` type
pub struct OpensslAcceptor<T: AsyncRead + AsyncWrite, P = ()> {
acceptor: SslAcceptor,
io: PhantomData<(T, P)>,
}
impl<T: AsyncRead + AsyncWrite, P> OpensslAcceptor<T, P> {
/// Create default `OpensslAcceptor`
pub fn new(acceptor: SslAcceptor) -> Self {
OpensslAcceptor {
acceptor,
io: PhantomData,
}
}
}
impl<T: AsyncRead + AsyncWrite, P> Clone for OpensslAcceptor<T, P> {
fn clone(&self) -> Self {
Self {
acceptor: self.acceptor.clone(),
io: PhantomData,
}
}
}
impl<T: AsyncRead + AsyncWrite, P> NewService for OpensslAcceptor<T, P> {
type Request = Io<T, P>;
type Response = Io<SslStream<T>, P>;
type Error = HandshakeError<T>;
type Config = ServerConfig;
type Service = OpensslAcceptorService<T, P>;
type InitError = ();
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, cfg: &ServerConfig) -> Self::Future {
cfg.set_secure();
MAX_CONN_COUNTER.with(|conns| {
ok(OpensslAcceptorService {
acceptor: self.acceptor.clone(),
conns: conns.clone(),
io: PhantomData,
})
})
}
}
pub struct OpensslAcceptorService<T, P> {
acceptor: SslAcceptor,
conns: Counter,
io: PhantomData<(T, P)>,
}
impl<T: AsyncRead + AsyncWrite, P> Service for OpensslAcceptorService<T, P> {
type Request = Io<T, P>;
type Response = Io<SslStream<T>, P>;
type Error = HandshakeError<T>;
type Future = OpensslAcceptorServiceFut<T, P>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
if self.conns.available() {
Ok(Async::Ready(()))
} else {
Ok(Async::NotReady)
}
}
fn call(&mut self, req: Self::Request) -> Self::Future {
let (io, params, _) = req.into_parts();
OpensslAcceptorServiceFut {
_guard: self.conns.get(),
fut: SslAcceptorExt::accept_async(&self.acceptor, io),
params: Some(params),
}
}
}
pub struct OpensslAcceptorServiceFut<T, P>
where
T: AsyncRead + AsyncWrite,
{
fut: AcceptAsync<T>,
params: Option<P>,
_guard: CounterGuard,
}
impl<T: AsyncRead + AsyncWrite, P> Future for OpensslAcceptorServiceFut<T, P> {
type Item = Io<SslStream<T>, P>;
type Error = HandshakeError<T>;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
let io = futures::try_ready!(self.fut.poll());
let proto = if let Some(protos) = io.get_ref().ssl().selected_alpn_protocol() {
const H2: &[u8] = b"\x02h2";
const HTTP10: &[u8] = b"\x08http/1.0";
const HTTP11: &[u8] = b"\x08http/1.1";
if protos.windows(3).any(|window| window == H2) {
Protocol::Http2
} else if protos.windows(9).any(|window| window == HTTP11) {
Protocol::Http11
} else if protos.windows(9).any(|window| window == HTTP10) {
Protocol::Http10
} else {
Protocol::Unknown
}
} else {
Protocol::Unknown
};
Ok(Async::Ready(Io::from_parts(
io,
self.params.take().unwrap(),
proto,
)))
}
}

View File

@@ -1,162 +0,0 @@
use std::io::Read;
use std::sync::mpsc;
use std::{net, thread, time};
use actix_codec::{BytesCodec, Framed};
use actix_server::{Io, Server, ServerConfig};
use actix_service::{new_service_cfg, service_fn, IntoService};
use bytes::Bytes;
use futures::{Future, Sink};
use net2::TcpBuilder;
use tokio_tcp::TcpStream;
fn unused_addr() -> net::SocketAddr {
let addr: net::SocketAddr = "127.0.0.1:0".parse().unwrap();
let socket = TcpBuilder::new_v4().unwrap();
socket.bind(&addr).unwrap();
socket.reuse_address(true).unwrap();
let tcp = socket.to_tcp_listener().unwrap();
tcp.local_addr().unwrap()
}
#[test]
fn test_bind() {
let addr = unused_addr();
let (tx, rx) = mpsc::channel();
let h = thread::spawn(move || {
let sys = actix_rt::System::new("test");
let srv = Server::build()
.bind("test", addr, move || {
new_service_cfg(move |cfg: &ServerConfig| {
assert_eq!(cfg.local_addr(), addr);
Ok::<_, ()>((|_| Ok::<_, ()>(())).into_service())
})
})
.unwrap()
.start();
let _ = tx.send((srv, actix_rt::System::current()));
let _ = sys.run();
});
let (_, sys) = rx.recv().unwrap();
thread::sleep(time::Duration::from_millis(500));
assert!(net::TcpStream::connect(addr).is_ok());
let _ = sys.stop();
let _ = h.join();
}
#[test]
fn test_bind_no_config() {
let addr = unused_addr();
let (tx, rx) = mpsc::channel();
let h = thread::spawn(move || {
let sys = actix_rt::System::new("test");
let srv = Server::build()
.bind("test", addr, move || service_fn(|_| Ok::<_, ()>(())))
.unwrap()
.start();
let _ = tx.send((srv, actix_rt::System::current()));
let _ = sys.run();
});
let (_, sys) = rx.recv().unwrap();
assert!(net::TcpStream::connect(addr).is_ok());
let _ = sys.stop();
let _ = h.join();
}
#[test]
fn test_listen() {
let addr = unused_addr();
let (tx, rx) = mpsc::channel();
let h = thread::spawn(move || {
let sys = actix_rt::System::new("test");
let lst = net::TcpListener::bind(addr).unwrap();
let srv = Server::build()
.listen("test", lst, move || {
new_service_cfg(move |cfg: &ServerConfig| {
assert_eq!(cfg.local_addr(), addr);
Ok::<_, ()>((|_| Ok::<_, ()>(())).into_service())
})
})
.unwrap()
.start();
let _ = tx.send((srv, actix_rt::System::current()));
let _ = sys.run();
});
let (_, sys) = rx.recv().unwrap();
thread::sleep(time::Duration::from_millis(500));
assert!(net::TcpStream::connect(addr).is_ok());
let _ = sys.stop();
let _ = h.join();
}
#[test]
#[cfg(unix)]
fn test_start() {
let addr = unused_addr();
let (tx, rx) = mpsc::channel();
let h = thread::spawn(move || {
let sys = actix_rt::System::new("test");
let srv = Server::build()
.backlog(100)
.bind("test", addr, move || {
new_service_cfg(move |cfg: &ServerConfig| {
assert_eq!(cfg.local_addr(), addr);
Ok::<_, ()>(
(|io: Io<TcpStream>| {
Framed::new(io.into_parts().0, BytesCodec)
.send(Bytes::from_static(b"test"))
.then(|_| Ok::<_, ()>(()))
})
.into_service(),
)
})
})
.unwrap()
.start();
let _ = tx.send((srv, actix_rt::System::current()));
let _ = sys.run();
});
let (srv, sys) = rx.recv().unwrap();
let mut buf = [0u8; 4];
let mut conn = net::TcpStream::connect(addr).unwrap();
let _ = conn.read_exact(&mut buf);
assert_eq!(buf, b"test"[..]);
// pause
let _ = srv.pause();
thread::sleep(time::Duration::from_millis(200));
let mut conn = net::TcpStream::connect(addr).unwrap();
conn.set_read_timeout(Some(time::Duration::from_millis(100)))
.unwrap();
let res = conn.read_exact(&mut buf);
assert!(res.is_err());
// resume
let _ = srv.resume();
thread::sleep(time::Duration::from_millis(100));
assert!(net::TcpStream::connect(addr).is_ok());
assert!(net::TcpStream::connect(addr).is_ok());
assert!(net::TcpStream::connect(addr).is_ok());
let mut buf = [0u8; 4];
let mut conn = net::TcpStream::connect(addr).unwrap();
let _ = conn.read_exact(&mut buf);
assert_eq!(buf, b"test"[..]);
// stop
let _ = srv.stop(false);
thread::sleep(time::Duration::from_millis(100));
assert!(net::TcpStream::connect(addr).is_err());
thread::sleep(time::Duration::from_millis(100));
let _ = sys.stop();
let _ = h.join();
}

View File

@@ -1,183 +0,0 @@
# Changes
## [0.4.1] - 2019-06-06
### Added
* Add `new_apply_cfg` function
## [0.4.0] - 2019-05-12
### Changed
* Use associated type for `NewService` config
* Change `apply_cfg` function
* Renamed helper functions
### Added
* Add `NewService::map_config` and `NewService::unit_config` combinators
## [0.3.6] - 2019-04-07
### Changed
* Poll boxed service call result immediately
## [0.3.5] - 2019-03-29
### Added
* Add `impl<S: Service> Service for Rc<RefCell<S>>`
## [0.3.4] - 2019-03-12
### Added
* 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
### Added
* Add `ApplyTransform` new service for transform and new service.
* Add `NewService::apply_cfg()` combinator, allows to use
nested `NewService` with different config parameter.
### Changed
* Revert IntoFuture change
## [0.3.2] - 2019-03-04
### Changed
* Change `NewService::Future` and `Transform::Future` to the `IntoFuture` trait.
* Export `AndThenTransform` type
## [0.3.1] - 2019-03-04
### Changed
* Simplify Transform trait
## [0.3.0] - 2019-03-02
## Added
* Added boxed NewService and Service.
## Changed
* Added `Config` parameter to `NewService` trait.
* Added `Config` parameter to `NewTransform` trait.
## [0.2.2] - 2019-02-19
### Added
* Added `NewService` impl for `Rc<S> where S: NewService`
* Added `NewService` impl for `Arc<S> where S: NewService`
## [0.2.1] - 2019-02-03
### Changed
* Generalize `.apply` combinator with Transform trait
## [0.2.0] - 2019-02-01
### Changed
* Use associated type instead of generic for Service definition.
* Before:
```rust
impl Service<Request> for Client {
type Response = Response;
// ...
}
```
* After:
```rust
impl Service for Client {
type Request = Request;
type Response = Response;
// ...
}
```
## [0.1.6] - 2019-01-24
### Changed
* 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
### Changed
* Make `Out::Error` convertable from `T::Error` for apply combinator
## [0.1.4] - 2019-01-11
### Changed
* Use `FnMut` instead of `Fn` for `FnService`
## [0.1.3] - 2018-12-12
### Changed
* Split service combinators to separate trait
## [0.1.2] - 2018-12-12
### Fixed
* Release future early for `.and_then()` and `.then()` combinators
## [0.1.1] - 2018-12-09
### Added
* Added Service impl for Box<S: Service>
## [0.1.0] - 2018-12-09
* Initial import

View File

@@ -1,29 +0,0 @@
[package]
name = "actix-service"
version = "0.4.1"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix Service"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-service/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[badges]
travis-ci = { repository = "actix/actix-service", branch = "master" }
appveyor = { repository = "actix/actix-net" }
codecov = { repository = "actix/actix-service", branch = "master", service = "github" }
[lib]
name = "actix_service"
path = "src/lib.rs"
[dependencies]
futures = "0.1.25"
[dev-dependencies]
actix-rt = "0.2"

View File

@@ -1 +0,0 @@
../LICENSE-APACHE

View File

@@ -1 +0,0 @@
../LICENSE-MIT

View File

@@ -1,186 +0,0 @@
use std::rc::Rc;
use futures::{Async, Future, Poll};
use crate::and_then::AndThen;
use crate::from_err::FromErr;
use crate::{NewService, Transform};
/// `Apply` new service combinator
pub struct AndThenTransform<T, A, B> {
a: A,
b: B,
t: Rc<T>,
}
impl<T, A, B> AndThenTransform<T, A, B>
where
A: NewService,
B: NewService<Config = A::Config, InitError = A::InitError>,
T: Transform<B::Service, Request = A::Response, InitError = A::InitError>,
T::Error: From<A::Error>,
{
/// Create new `ApplyNewService` new service instance
pub fn new(t: T, a: A, b: B) -> Self {
Self {
a,
b,
t: Rc::new(t),
}
}
}
impl<T, A, B> Clone for AndThenTransform<T, A, B>
where
A: Clone,
B: Clone,
{
fn clone(&self) -> Self {
Self {
a: self.a.clone(),
b: self.b.clone(),
t: self.t.clone(),
}
}
}
impl<T, A, B> NewService for AndThenTransform<T, A, B>
where
A: NewService,
B: NewService<Config = A::Config, InitError = A::InitError>,
T: Transform<B::Service, Request = A::Response, InitError = A::InitError>,
T::Error: From<A::Error>,
{
type Request = A::Request;
type Response = T::Response;
type Error = T::Error;
type Config = A::Config;
type InitError = T::InitError;
type Service = AndThen<FromErr<A::Service, T::Error>, T::Transform>;
type Future = AndThenTransformFuture<T, A, B>;
fn new_service(&self, cfg: &A::Config) -> Self::Future {
AndThenTransformFuture {
a: None,
t: None,
t_cell: self.t.clone(),
fut_a: self.a.new_service(cfg),
fut_b: self.b.new_service(cfg),
fut_t: None,
}
}
}
pub struct AndThenTransformFuture<T, A, B>
where
A: NewService,
B: NewService<InitError = A::InitError>,
T: Transform<B::Service, Request = A::Response, InitError = A::InitError>,
T::Error: From<A::Error>,
{
fut_a: A::Future,
fut_b: B::Future,
fut_t: Option<T::Future>,
a: Option<A::Service>,
t: Option<T::Transform>,
t_cell: Rc<T>,
}
impl<T, A, B> Future for AndThenTransformFuture<T, A, B>
where
A: NewService,
B: NewService<InitError = A::InitError>,
T: Transform<B::Service, Request = A::Response, InitError = A::InitError>,
T::Error: From<A::Error>,
{
type Item = AndThen<FromErr<A::Service, T::Error>, T::Transform>;
type Error = T::InitError;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if self.fut_t.is_none() {
if let Async::Ready(service) = self.fut_b.poll()? {
self.fut_t = Some(self.t_cell.new_transform(service));
}
}
if self.a.is_none() {
if let Async::Ready(service) = self.fut_a.poll()? {
self.a = Some(service);
}
}
if let Some(ref mut fut) = self.fut_t {
if let Async::Ready(transform) = fut.poll()? {
self.t = Some(transform);
}
}
if self.a.is_some() && self.t.is_some() {
Ok(Async::Ready(AndThen::new(
FromErr::new(self.a.take().unwrap()),
self.t.take().unwrap(),
)))
} else {
Ok(Async::NotReady)
}
}
}
#[cfg(test)]
mod tests {
use futures::future::{ok, FutureResult};
use futures::{Async, Future, Poll};
use crate::{IntoNewService, IntoService, NewService, Service, ServiceExt};
#[derive(Clone)]
struct Srv;
impl Service for Srv {
type Request = ();
type Response = ();
type Error = ();
type Future = FutureResult<(), ()>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, _: ()) -> Self::Future {
ok(())
}
}
#[test]
fn test_apply() {
let blank = |req| Ok(req);
let mut srv = blank
.into_service()
.apply_fn(Srv, |req: &'static str, srv: &mut Srv| {
srv.call(()).map(move |res| (req, res))
});
assert!(srv.poll_ready().is_ok());
let res = srv.call("srv").poll();
assert!(res.is_ok());
assert_eq!(res.unwrap(), Async::Ready(("srv", ())));
}
#[test]
fn test_new_service() {
let blank = || Ok::<_, ()>((|req| Ok(req)).into_service());
let new_srv = blank.into_new_service().apply(
|req: &'static str, srv: &mut Srv| srv.call(()).map(move |res| (req, res)),
|| Ok(Srv),
);
if let Async::Ready(mut srv) = new_srv.new_service(&()).poll().unwrap() {
assert!(srv.poll_ready().is_ok());
let res = srv.call("srv").poll();
assert!(res.is_ok());
assert_eq!(res.unwrap(), Async::Ready(("srv", ())));
} else {
panic!()
}
}
}

View File

@@ -1,307 +0,0 @@
use std::marker::PhantomData;
use futures::{Async, Future, IntoFuture, Poll};
use super::{IntoNewService, IntoService, NewService, Service};
use crate::cell::Cell;
/// `Apply` service combinator
pub struct AndThenApply<A, B, F, Out>
where
A: Service,
B: Service<Error = A::Error>,
F: FnMut(A::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
a: A,
b: Cell<B>,
f: Cell<F>,
r: PhantomData<(Out,)>,
}
impl<A, B, F, Out> AndThenApply<A, B, F, Out>
where
A: Service,
B: Service<Error = A::Error>,
F: FnMut(A::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
/// Create new `Apply` combinator
pub fn new<A1: IntoService<A>, B1: IntoService<B>>(a: A1, b: B1, f: F) -> Self {
Self {
f: Cell::new(f),
a: a.into_service(),
b: Cell::new(b.into_service()),
r: PhantomData,
}
}
}
impl<A, B, F, Out> Clone for AndThenApply<A, B, F, Out>
where
A: Service + Clone,
B: Service<Error = A::Error>,
F: FnMut(A::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
fn clone(&self) -> Self {
AndThenApply {
a: self.a.clone(),
b: self.b.clone(),
f: self.f.clone(),
r: PhantomData,
}
}
}
impl<A, B, F, Out> Service for AndThenApply<A, B, F, Out>
where
A: Service,
B: Service<Error = A::Error>,
F: FnMut(A::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
type Request = A::Request;
type Response = Out::Item;
type Error = A::Error;
type Future = AndThenApplyFuture<A, B, F, Out>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
let not_ready = self.a.poll_ready()?.is_not_ready();
if self.b.get_mut().poll_ready()?.is_not_ready() || not_ready {
Ok(Async::NotReady)
} else {
Ok(Async::Ready(()))
}
}
fn call(&mut self, req: A::Request) -> Self::Future {
AndThenApplyFuture {
b: self.b.clone(),
f: self.f.clone(),
fut_b: None,
fut_a: Some(self.a.call(req)),
}
}
}
pub struct AndThenApplyFuture<A, B, F, Out>
where
A: Service,
B: Service<Error = A::Error>,
F: FnMut(A::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
b: Cell<B>,
f: Cell<F>,
fut_a: Option<A::Future>,
fut_b: Option<Out::Future>,
}
impl<A, B, F, Out> Future for AndThenApplyFuture<A, B, F, Out>
where
A: Service,
B: Service<Error = A::Error>,
F: FnMut(A::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
type Item = Out::Item;
type Error = A::Error;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if let Some(ref mut fut) = self.fut_b {
return fut.poll().map_err(|e| e.into());
}
match self.fut_a.as_mut().expect("Bug in actix-service").poll() {
Ok(Async::Ready(resp)) => {
let _ = self.fut_a.take();
self.fut_b =
Some((&mut *self.f.get_mut())(resp, self.b.get_mut()).into_future());
self.poll()
}
Ok(Async::NotReady) => Ok(Async::NotReady),
Err(err) => Err(err),
}
}
}
/// `ApplyNewService` new service combinator
pub struct AndThenApplyNewService<A, B, F, Out> {
a: A,
b: B,
f: Cell<F>,
r: PhantomData<Out>,
}
impl<A, B, F, Out> AndThenApplyNewService<A, B, F, Out>
where
A: NewService,
B: NewService<Config = A::Config, Error = A::Error, InitError = A::InitError>,
F: FnMut(A::Response, &mut B::Service) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
/// Create new `ApplyNewService` new service instance
pub fn new<A1: IntoNewService<A>, B1: IntoNewService<B>>(a: A1, b: B1, f: F) -> Self {
Self {
f: Cell::new(f),
a: a.into_new_service(),
b: b.into_new_service(),
r: PhantomData,
}
}
}
impl<A, B, F, Out> Clone for AndThenApplyNewService<A, B, F, Out>
where
A: Clone,
B: Clone,
{
fn clone(&self) -> Self {
Self {
a: self.a.clone(),
b: self.b.clone(),
f: self.f.clone(),
r: PhantomData,
}
}
}
impl<A, B, F, Out> NewService for AndThenApplyNewService<A, B, F, Out>
where
A: NewService,
B: NewService<Config = A::Config, Error = A::Error, InitError = A::InitError>,
F: FnMut(A::Response, &mut B::Service) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
type Request = A::Request;
type Response = Out::Item;
type Error = A::Error;
type Service = AndThenApply<A::Service, B::Service, F, Out>;
type Config = A::Config;
type InitError = A::InitError;
type Future = AndThenApplyNewServiceFuture<A, B, F, Out>;
fn new_service(&self, cfg: &A::Config) -> Self::Future {
AndThenApplyNewServiceFuture {
a: None,
b: None,
f: self.f.clone(),
fut_a: self.a.new_service(cfg).into_future(),
fut_b: self.b.new_service(cfg).into_future(),
}
}
}
pub struct AndThenApplyNewServiceFuture<A, B, F, Out>
where
A: NewService,
B: NewService<Error = A::Error, InitError = A::InitError>,
F: FnMut(A::Response, &mut B::Service) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
fut_b: B::Future,
fut_a: A::Future,
f: Cell<F>,
a: Option<A::Service>,
b: Option<B::Service>,
}
impl<A, B, F, Out> Future for AndThenApplyNewServiceFuture<A, B, F, Out>
where
A: NewService,
B: NewService<Error = A::Error, InitError = A::InitError>,
F: FnMut(A::Response, &mut B::Service) -> Out,
Out: IntoFuture,
Out::Error: Into<A::Error>,
{
type Item = AndThenApply<A::Service, B::Service, F, Out>;
type Error = A::InitError;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if self.a.is_none() {
if let Async::Ready(service) = self.fut_a.poll()? {
self.a = Some(service);
}
}
if self.b.is_none() {
if let Async::Ready(service) = self.fut_b.poll()? {
self.b = Some(service);
}
}
if self.a.is_some() && self.b.is_some() {
Ok(Async::Ready(AndThenApply {
f: self.f.clone(),
a: self.a.take().unwrap(),
b: Cell::new(self.b.take().unwrap()),
r: PhantomData,
}))
} else {
Ok(Async::NotReady)
}
}
}
#[cfg(test)]
mod tests {
use futures::future::{ok, FutureResult};
use futures::{Async, Future, Poll};
use crate::blank::{Blank, BlankNewService};
use crate::{NewService, Service, ServiceExt};
#[derive(Clone)]
struct Srv;
impl Service for Srv {
type Request = ();
type Response = ();
type Error = ();
type Future = FutureResult<(), ()>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, _: ()) -> Self::Future {
ok(())
}
}
#[test]
fn test_call() {
let mut srv = Blank::new().apply_fn(Srv, |req: &'static str, srv| {
srv.call(()).map(move |res| (req, res))
});
assert!(srv.poll_ready().is_ok());
let res = srv.call("srv").poll();
assert!(res.is_ok());
assert_eq!(res.unwrap(), Async::Ready(("srv", ())));
}
#[test]
fn test_new_service() {
let new_srv = BlankNewService::new_unit().apply_fn(
|| Ok(Srv),
|req: &'static str, srv| srv.call(()).map(move |res| (req, res)),
);
if let Async::Ready(mut srv) = new_srv.new_service(&()).poll().unwrap() {
assert!(srv.poll_ready().is_ok());
let res = srv.call("srv").poll();
assert!(res.is_ok());
assert_eq!(res.unwrap(), Async::Ready(("srv", ())));
} else {
panic!()
}
}
}

View File

@@ -1,257 +0,0 @@
use std::marker::PhantomData;
use futures::{Async, Future, IntoFuture, Poll};
use super::{IntoNewService, IntoService, NewService, Service};
/// Apply tranform function to a service
pub fn apply_fn<T, F, In, Out, U>(service: U, f: F) -> Apply<T, F, In, Out>
where
T: Service,
F: FnMut(In, &mut T) -> Out,
Out: IntoFuture,
Out::Error: From<T::Error>,
U: IntoService<T>,
{
Apply::new(service.into_service(), f)
}
/// Create factory for `apply` service.
pub fn new_apply_fn<T, F, In, Out, U>(service: U, f: F) -> ApplyNewService<T, F, In, Out>
where
T: NewService,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<T::Error>,
U: IntoNewService<T>,
{
ApplyNewService::new(service.into_new_service(), f)
}
#[doc(hidden)]
/// `Apply` service combinator
pub struct Apply<T, F, In, Out>
where
T: Service,
{
service: T,
f: F,
r: PhantomData<(In, Out)>,
}
impl<T, F, In, Out> Apply<T, F, In, Out>
where
T: Service,
F: FnMut(In, &mut T) -> Out,
Out: IntoFuture,
Out::Error: From<T::Error>,
{
/// Create new `Apply` combinator
pub(crate) fn new<I: IntoService<T>>(service: I, f: F) -> Self {
Self {
service: service.into_service(),
f,
r: PhantomData,
}
}
}
impl<T, F, In, Out> Clone for Apply<T, F, In, Out>
where
T: Service + Clone,
F: Clone,
{
fn clone(&self) -> Self {
Apply {
service: self.service.clone(),
f: self.f.clone(),
r: PhantomData,
}
}
}
impl<T, F, In, Out> Service for Apply<T, F, In, Out>
where
T: Service,
F: FnMut(In, &mut T) -> Out,
Out: IntoFuture,
Out::Error: From<T::Error>,
{
type Request = In;
type Response = Out::Item;
type Error = Out::Error;
type Future = Out::Future;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
self.service.poll_ready().map_err(|e| e.into())
}
fn call(&mut self, req: In) -> Self::Future {
(self.f)(req, &mut self.service).into_future()
}
}
/// `ApplyNewService` new service combinator
pub struct ApplyNewService<T, F, In, Out>
where
T: NewService,
{
service: T,
f: F,
r: PhantomData<(In, Out)>,
}
impl<T, F, In, Out> ApplyNewService<T, F, In, Out>
where
T: NewService,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<T::Error>,
{
/// Create new `ApplyNewService` new service instance
pub(crate) fn new<F1: IntoNewService<T>>(service: F1, f: F) -> Self {
Self {
f,
service: service.into_new_service(),
r: PhantomData,
}
}
}
impl<T, F, In, Out> Clone for ApplyNewService<T, F, In, Out>
where
T: NewService + Clone,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
{
fn clone(&self) -> Self {
Self {
service: self.service.clone(),
f: self.f.clone(),
r: PhantomData,
}
}
}
impl<T, F, In, Out> NewService for ApplyNewService<T, F, In, Out>
where
T: NewService,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<T::Error>,
{
type Request = In;
type Response = Out::Item;
type Error = Out::Error;
type Config = T::Config;
type Service = Apply<T::Service, F, In, Out>;
type InitError = T::InitError;
type Future = ApplyNewServiceFuture<T, F, In, Out>;
fn new_service(&self, cfg: &T::Config) -> Self::Future {
ApplyNewServiceFuture::new(self.service.new_service(cfg), self.f.clone())
}
}
pub struct ApplyNewServiceFuture<T, F, In, Out>
where
T: NewService,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
{
fut: T::Future,
f: Option<F>,
r: PhantomData<(In, Out)>,
}
impl<T, F, In, Out> ApplyNewServiceFuture<T, F, In, Out>
where
T: NewService,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
{
fn new(fut: T::Future, f: F) -> Self {
ApplyNewServiceFuture {
f: Some(f),
fut,
r: PhantomData,
}
}
}
impl<T, F, In, Out> Future for ApplyNewServiceFuture<T, F, In, Out>
where
T: NewService,
F: FnMut(In, &mut T::Service) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<T::Error>,
{
type Item = Apply<T::Service, F, In, Out>;
type Error = T::InitError;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if let Async::Ready(service) = self.fut.poll()? {
Ok(Async::Ready(Apply::new(service, self.f.take().unwrap())))
} else {
Ok(Async::NotReady)
}
}
}
#[cfg(test)]
mod tests {
use futures::future::{ok, FutureResult};
use futures::{Async, Future, Poll};
use super::*;
use crate::{IntoService, NewService, Service, ServiceExt};
#[derive(Clone)]
struct Srv;
impl Service for Srv {
type Request = ();
type Response = ();
type Error = ();
type Future = FutureResult<(), ()>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, _: ()) -> Self::Future {
ok(())
}
}
#[test]
fn test_call() {
let blank = |req| Ok(req);
let mut srv = blank
.into_service()
.apply_fn(Srv, |req: &'static str, srv| {
srv.call(()).map(move |res| (req, res))
});
assert!(srv.poll_ready().is_ok());
let res = srv.call("srv").poll();
assert!(res.is_ok());
assert_eq!(res.unwrap(), Async::Ready(("srv", ())));
}
#[test]
fn test_new_service() {
let new_srv = ApplyNewService::new(
|| Ok::<_, ()>(Srv),
|req: &'static str, srv| srv.call(()).map(move |res| (req, res)),
);
if let Async::Ready(mut srv) = new_srv.new_service(&()).poll().unwrap() {
assert!(srv.poll_ready().is_ok());
let res = srv.call("srv").poll();
assert!(res.is_ok());
assert_eq!(res.unwrap(), Async::Ready(("srv", ())));
} else {
panic!()
}
}
}

View File

@@ -1,252 +0,0 @@
use std::marker::PhantomData;
use futures::future::Future;
use futures::{try_ready, Async, IntoFuture, Poll};
use crate::cell::Cell;
use crate::{IntoService, NewService, Service};
/// Convert `Fn(&Config, &mut Service) -> Future<Service>` fn to a NewService
pub fn apply_cfg<F, C, T, R, S>(
srv: T,
f: F,
) -> impl NewService<
Config = C,
Request = S::Request,
Response = S::Response,
Error = S::Error,
Service = S,
InitError = R::Error,
> + Clone
where
F: FnMut(&C, &mut T) -> R,
T: Service,
R: IntoFuture,
R::Item: IntoService<S>,
S: Service,
{
ApplyConfigService {
f: Cell::new(f),
srv: Cell::new(srv.into_service()),
_t: PhantomData,
}
}
/// Convert `Fn(&Config, &mut Service) -> Future<Service>` fn to a NewService
/// Service get constructor from NewService.
pub fn new_apply_cfg<F, C, T, R, S>(
srv: T,
f: F,
) -> impl NewService<
Config = C,
Request = S::Request,
Response = S::Response,
Error = S::Error,
Service = S,
InitError = T::InitError,
> + Clone
where
C: Clone,
F: FnMut(&C, &mut T::Service) -> R,
T: NewService<Config = ()>,
R: IntoFuture<Error = T::InitError>,
R::Item: IntoService<S>,
S: Service,
{
ApplyConfigNewService {
f: Cell::new(f),
srv: Cell::new(srv),
_t: PhantomData,
}
}
/// Convert `Fn(&Config) -> Future<Service>` fn to NewService
struct ApplyConfigService<F, C, T, R, S>
where
F: FnMut(&C, &mut T) -> R,
T: Service,
R: IntoFuture,
R::Item: IntoService<S>,
S: Service,
{
f: Cell<F>,
srv: Cell<T>,
_t: PhantomData<(C, R, S)>,
}
impl<F, C, T, R, S> Clone for ApplyConfigService<F, C, T, R, S>
where
F: FnMut(&C, &mut T) -> R,
T: Service,
R: IntoFuture,
R::Item: IntoService<S>,
S: Service,
{
fn clone(&self) -> Self {
ApplyConfigService {
f: self.f.clone(),
srv: self.srv.clone(),
_t: PhantomData,
}
}
}
impl<F, C, T, R, S> NewService for ApplyConfigService<F, C, T, R, S>
where
F: FnMut(&C, &mut T) -> R,
T: Service,
R: IntoFuture,
R::Item: IntoService<S>,
S: Service,
{
type Config = C;
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Service = S;
type InitError = R::Error;
type Future = FnNewServiceConfigFut<R, S>;
fn new_service(&self, cfg: &C) -> Self::Future {
FnNewServiceConfigFut {
fut: unsafe { (self.f.get_mut_unsafe())(cfg, self.srv.get_mut_unsafe()) }
.into_future(),
_t: PhantomData,
}
}
}
struct FnNewServiceConfigFut<R, S>
where
R: IntoFuture,
R::Item: IntoService<S>,
S: Service,
{
fut: R::Future,
_t: PhantomData<(S,)>,
}
impl<R, S> Future for FnNewServiceConfigFut<R, S>
where
R: IntoFuture,
R::Item: IntoService<S>,
S: Service,
{
type Item = S;
type Error = R::Error;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
Ok(Async::Ready(try_ready!(self.fut.poll()).into_service()))
}
}
/// Convert `Fn(&Config) -> Future<Service>` fn to NewService
struct ApplyConfigNewService<F, C, T, R, S>
where
C: Clone,
F: FnMut(&C, &mut T::Service) -> R,
T: NewService<Config = ()>,
R: IntoFuture<Error = T::InitError>,
R::Item: IntoService<S>,
S: Service,
{
f: Cell<F>,
srv: Cell<T>,
_t: PhantomData<(C, R, S)>,
}
impl<F, C, T, R, S> Clone for ApplyConfigNewService<F, C, T, R, S>
where
C: Clone,
F: FnMut(&C, &mut T::Service) -> R,
T: NewService<Config = ()>,
R: IntoFuture<Error = T::InitError>,
R::Item: IntoService<S>,
S: Service,
{
fn clone(&self) -> Self {
ApplyConfigNewService {
f: self.f.clone(),
srv: self.srv.clone(),
_t: PhantomData,
}
}
}
impl<F, C, T, R, S> NewService for ApplyConfigNewService<F, C, T, R, S>
where
C: Clone,
F: FnMut(&C, &mut T::Service) -> R,
T: NewService<Config = ()>,
R: IntoFuture<Error = T::InitError>,
R::Item: IntoService<S>,
S: Service,
{
type Config = C;
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Service = S;
type InitError = R::Error;
type Future = ApplyConfigNewServiceFut<F, C, T, R, S>;
fn new_service(&self, cfg: &C) -> Self::Future {
ApplyConfigNewServiceFut {
f: self.f.clone(),
cfg: cfg.clone(),
srv: Some(self.srv.get_ref().new_service(&())),
fut: None,
_t: PhantomData,
}
}
}
struct ApplyConfigNewServiceFut<F, C, T, R, S>
where
C: Clone,
F: FnMut(&C, &mut T::Service) -> R,
T: NewService<Config = ()>,
R: IntoFuture<Error = T::InitError>,
R::Item: IntoService<S>,
S: Service,
{
cfg: C,
f: Cell<F>,
srv: Option<T::Future>,
fut: Option<R::Future>,
_t: PhantomData<(S,)>,
}
impl<F, C, T, R, S> Future for ApplyConfigNewServiceFut<F, C, T, R, S>
where
C: Clone,
F: FnMut(&C, &mut T::Service) -> R,
T: NewService<Config = ()>,
R: IntoFuture<Error = T::InitError>,
R::Item: IntoService<S>,
S: Service,
{
type Item = S;
type Error = R::Error;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if let Some(ref mut fut) = self.srv {
match fut.poll()? {
Async::NotReady => return Ok(Async::NotReady),
Async::Ready(mut srv) => {
let _ = self.srv.take();
self.fut = Some(self.f.get_mut()(&self.cfg, &mut srv).into_future());
return self.poll();
}
}
}
if let Some(ref mut fut) = self.fut {
Ok(Async::Ready(try_ready!(fut.poll()).into_service()))
} else {
Ok(Async::NotReady)
}
}
}

View File

@@ -1,84 +0,0 @@
use std::marker::PhantomData;
use futures::future::{ok, FutureResult};
use futures::{Async, Poll};
use super::{NewService, Service};
/// Empty service
#[derive(Clone)]
pub struct Blank<R, E> {
_t: PhantomData<(R, E)>,
}
impl<R, E> Blank<R, E> {
pub fn err<E1>(self) -> Blank<R, E1> {
Blank { _t: PhantomData }
}
}
impl<R> Blank<R, ()> {
#[allow(clippy::new_ret_no_self)]
pub fn new<E>() -> Blank<R, E> {
Blank { _t: PhantomData }
}
}
impl<R, E> Default for Blank<R, E> {
fn default() -> Blank<R, E> {
Blank { _t: PhantomData }
}
}
impl<R, E> Service for Blank<R, E> {
type Request = R;
type Response = R;
type Error = E;
type Future = FutureResult<R, E>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, req: R) -> Self::Future {
ok(req)
}
}
/// Empty service factory
pub struct BlankNewService<R, E1, E2 = ()> {
_t: PhantomData<(R, E1, E2)>,
}
impl<R, E1, E2> BlankNewService<R, E1, E2> {
pub fn new() -> BlankNewService<R, E1, E2> {
BlankNewService { _t: PhantomData }
}
}
impl<R, E1> BlankNewService<R, E1, ()> {
pub fn new_unit() -> BlankNewService<R, E1, ()> {
BlankNewService { _t: PhantomData }
}
}
impl<R, E1, E2> Default for BlankNewService<R, E1, E2> {
fn default() -> BlankNewService<R, E1, E2> {
Self::new()
}
}
impl<R, E1, E2> NewService for BlankNewService<R, E1, E2> {
type Request = R;
type Response = R;
type Error = E1;
type Config = ();
type Service = Blank<R, E1>;
type InitError = E2;
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, _: &()) -> Self::Future {
ok(Blank::default())
}
}

View File

@@ -1,151 +0,0 @@
use futures::future::{err, ok, Either, FutureResult};
use futures::{Async, Future, IntoFuture, Poll};
use crate::{NewService, Service};
pub type BoxedService<Req, Res, Err> = Box<
Service<
Request = Req,
Response = Res,
Error = Err,
Future = BoxedServiceResponse<Res, Err>,
>,
>;
pub type BoxedServiceResponse<Res, Err> =
Either<FutureResult<Res, Err>, Box<Future<Item = Res, Error = Err>>>;
pub struct BoxedNewService<C, Req, Res, Err, InitErr>(Inner<C, Req, Res, Err, InitErr>);
/// Create boxed new service
pub fn new_service<T>(
service: T,
) -> BoxedNewService<T::Config, T::Request, T::Response, T::Error, T::InitError>
where
T: NewService + 'static,
T::Request: 'static,
T::Response: 'static,
T::Service: 'static,
T::Future: 'static,
T::Error: 'static,
T::InitError: 'static,
{
BoxedNewService(Box::new(NewServiceWrapper {
service,
_t: std::marker::PhantomData,
}))
}
/// Create boxed service
pub fn service<T>(service: T) -> BoxedService<T::Request, T::Response, T::Error>
where
T: Service + 'static,
T::Future: 'static,
{
Box::new(ServiceWrapper(service))
}
type Inner<C, Req, Res, Err, InitErr> = Box<
NewService<
Config = C,
Request = Req,
Response = Res,
Error = Err,
InitError = InitErr,
Service = BoxedService<Req, Res, Err>,
Future = Box<Future<Item = BoxedService<Req, Res, Err>, Error = InitErr>>,
>,
>;
impl<C, Req, Res, Err, InitErr> NewService for BoxedNewService<C, Req, Res, Err, InitErr>
where
Req: 'static,
Res: 'static,
Err: 'static,
InitErr: 'static,
{
type Request = Req;
type Response = Res;
type Error = Err;
type InitError = InitErr;
type Config = C;
type Service = BoxedService<Req, Res, Err>;
type Future = Box<Future<Item = Self::Service, Error = Self::InitError>>;
fn new_service(&self, cfg: &C) -> Self::Future {
self.0.new_service(cfg)
}
}
struct NewServiceWrapper<C, T: NewService> {
service: T,
_t: std::marker::PhantomData<C>,
}
impl<C, T, Req, Res, Err, InitErr> NewService for NewServiceWrapper<C, T>
where
Req: 'static,
Res: 'static,
Err: 'static,
InitErr: 'static,
T: NewService<Config = C, Request = Req, Response = Res, Error = Err, InitError = InitErr>,
T::Future: 'static,
T::Service: 'static,
<T::Service as Service>::Future: 'static,
{
type Request = Req;
type Response = Res;
type Error = Err;
type InitError = InitErr;
type Config = C;
type Service = BoxedService<Req, Res, Err>;
type Future = Box<Future<Item = Self::Service, Error = Self::InitError>>;
fn new_service(&self, cfg: &C) -> Self::Future {
Box::new(
self.service
.new_service(cfg)
.into_future()
.map(ServiceWrapper::boxed),
)
}
}
struct ServiceWrapper<T: Service>(T);
impl<T> ServiceWrapper<T>
where
T: Service + 'static,
T::Future: 'static,
{
fn boxed(service: T) -> BoxedService<T::Request, T::Response, T::Error> {
Box::new(ServiceWrapper(service))
}
}
impl<T, Req, Res, Err> Service for ServiceWrapper<T>
where
T: Service<Request = Req, Response = Res, Error = Err>,
T::Future: 'static,
{
type Request = Req;
type Response = Res;
type Error = Err;
type Future = Either<
FutureResult<Self::Response, Self::Error>,
Box<Future<Item = Self::Response, Error = Self::Error>>,
>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
self.0.poll_ready()
}
fn call(&mut self, req: Self::Request) -> Self::Future {
let mut fut = self.0.call(req);
match fut.poll() {
Ok(Async::Ready(res)) => Either::A(ok(res)),
Err(e) => Either::A(err(e)),
Ok(Async::NotReady) => Either::B(Box::new(fut)),
}
}
}

View File

@@ -1,40 +0,0 @@
//! Custom cell impl
use std::{cell::UnsafeCell, fmt, rc::Rc};
pub(crate) struct Cell<T> {
inner: Rc<UnsafeCell<T>>,
}
impl<T> Clone for Cell<T> {
fn clone(&self) -> Self {
Self {
inner: self.inner.clone(),
}
}
}
impl<T: fmt::Debug> fmt::Debug for Cell<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.inner.fmt(f)
}
}
impl<T> Cell<T> {
pub(crate) fn new(inner: T) -> Self {
Self {
inner: Rc::new(UnsafeCell::new(inner)),
}
}
pub(crate) fn get_ref(&self) -> &T {
unsafe { &*self.inner.as_ref().get() }
}
pub(crate) fn get_mut(&mut self) -> &mut T {
unsafe { &mut *self.inner.as_ref().get() }
}
pub(crate) unsafe fn get_mut_unsafe(&self) -> &mut T {
&mut *self.inner.as_ref().get()
}
}

View File

@@ -1,310 +0,0 @@
use std::marker::PhantomData;
use futures::future::{ok, Future, FutureResult};
use futures::{try_ready, Async, IntoFuture, Poll};
use crate::{IntoNewService, IntoService, NewService, Service};
/// Create `NewService` for function that can act as a Service
pub fn service_fn<F, Req, Out, Cfg>(f: F) -> NewServiceFn<F, Req, Out, Cfg>
where
F: FnMut(Req) -> Out + Clone,
Out: IntoFuture,
{
NewServiceFn::new(f)
}
/// Create `NewService` for function that can produce services
pub fn new_service_fn<F, C, R, S, E>(f: F) -> FnNewServiceNoConfig<F, C, R, S, E>
where
F: Fn() -> R,
R: IntoFuture<Item = S, Error = E>,
R::Item: IntoService<S>,
S: Service,
{
FnNewServiceNoConfig::new(f)
}
/// Create `NewService` for function that can produce services with configuration
pub fn new_service_cfg<F, C, R, S, E>(f: F) -> FnNewServiceConfig<F, C, R, S, E>
where
F: Fn(&C) -> R,
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
FnNewServiceConfig::new(f)
}
pub struct ServiceFn<F, Req, Out>
where
F: FnMut(Req) -> Out,
Out: IntoFuture,
{
f: F,
_t: PhantomData<Req>,
}
impl<F, Req, Out> ServiceFn<F, Req, Out>
where
F: FnMut(Req) -> Out,
Out: IntoFuture,
{
pub(crate) fn new(f: F) -> Self {
ServiceFn { f, _t: PhantomData }
}
}
impl<F, Req, Out> Clone for ServiceFn<F, Req, Out>
where
F: FnMut(Req) -> Out + Clone,
Out: IntoFuture,
{
fn clone(&self) -> Self {
ServiceFn::new(self.f.clone())
}
}
impl<F, Req, Out> Service for ServiceFn<F, Req, Out>
where
F: FnMut(Req) -> Out,
Out: IntoFuture,
{
type Request = Req;
type Response = Out::Item;
type Error = Out::Error;
type Future = Out::Future;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, req: Req) -> Self::Future {
(self.f)(req).into_future()
}
}
impl<F, Req, Out> IntoService<ServiceFn<F, Req, Out>> for F
where
F: FnMut(Req) -> Out,
Out: IntoFuture,
{
fn into_service(self) -> ServiceFn<F, Req, Out> {
ServiceFn::new(self)
}
}
pub struct NewServiceFn<F, Req, Out, Cfg>
where
F: FnMut(Req) -> Out,
Out: IntoFuture,
{
f: F,
_t: PhantomData<(Req, Cfg)>,
}
impl<F, Req, Out, Cfg> NewServiceFn<F, Req, Out, Cfg>
where
F: FnMut(Req) -> Out + Clone,
Out: IntoFuture,
{
pub(crate) fn new(f: F) -> Self {
NewServiceFn { f, _t: PhantomData }
}
}
impl<F, Req, Out, Cfg> Clone for NewServiceFn<F, Req, Out, Cfg>
where
F: FnMut(Req) -> Out + Clone,
Out: IntoFuture,
{
fn clone(&self) -> Self {
NewServiceFn::new(self.f.clone())
}
}
impl<F, Req, Out, Cfg> NewService for NewServiceFn<F, Req, Out, Cfg>
where
F: FnMut(Req) -> Out + Clone,
Out: IntoFuture,
{
type Request = Req;
type Response = Out::Item;
type Error = Out::Error;
type Config = Cfg;
type Service = ServiceFn<F, Req, Out>;
type InitError = ();
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, _: &Cfg) -> Self::Future {
ok(ServiceFn::new(self.f.clone()))
}
}
impl<F, Req, Out, Cfg> IntoService<ServiceFn<F, Req, Out>> for NewServiceFn<F, Req, Out, Cfg>
where
F: FnMut(Req) -> Out + Clone,
Out: IntoFuture,
{
fn into_service(self) -> ServiceFn<F, Req, Out> {
ServiceFn::new(self.f.clone())
}
}
impl<F, Req, Out, Cfg> IntoNewService<NewServiceFn<F, Req, Out, Cfg>> for F
where
F: Fn(Req) -> Out + Clone,
Out: IntoFuture,
{
fn into_new_service(self) -> NewServiceFn<F, Req, Out, Cfg> {
NewServiceFn::new(self)
}
}
/// Convert `Fn(&Config) -> Future<Service>` fn to NewService
pub struct FnNewServiceConfig<F, C, R, S, E>
where
F: Fn(&C) -> R,
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
f: F,
_t: PhantomData<(C, R, S, E)>,
}
impl<F, C, R, S, E> FnNewServiceConfig<F, C, R, S, E>
where
F: Fn(&C) -> R,
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
pub fn new(f: F) -> Self {
FnNewServiceConfig { f, _t: PhantomData }
}
}
impl<F, C, R, S, E> NewService for FnNewServiceConfig<F, C, R, S, E>
where
F: Fn(&C) -> R,
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Config = C;
type Service = S;
type InitError = E;
type Future = FnNewServiceConfigFut<R, S, E>;
fn new_service(&self, cfg: &C) -> Self::Future {
FnNewServiceConfigFut {
fut: (self.f)(cfg).into_future(),
_t: PhantomData,
}
}
}
pub struct FnNewServiceConfigFut<R, S, E>
where
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
fut: R::Future,
_t: PhantomData<(S,)>,
}
impl<R, S, E> Future for FnNewServiceConfigFut<R, S, E>
where
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
type Item = S;
type Error = R::Error;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
Ok(Async::Ready(try_ready!(self.fut.poll()).into_service()))
}
}
impl<F, C, R, S, E> Clone for FnNewServiceConfig<F, C, R, S, E>
where
F: Fn(&C) -> R + Clone,
R: IntoFuture<Error = E>,
R::Item: IntoService<S>,
S: Service,
{
fn clone(&self) -> Self {
Self::new(self.f.clone())
}
}
/// Converter for `Fn() -> Future<Service>` fn
pub struct FnNewServiceNoConfig<F, C, R, S, E>
where
F: Fn() -> R,
R: IntoFuture<Item = S, Error = E>,
S: Service,
{
f: F,
_t: PhantomData<C>,
}
impl<F, C, R, S, E> FnNewServiceNoConfig<F, C, R, S, E>
where
F: Fn() -> R,
R: IntoFuture<Item = S, Error = E>,
S: Service,
{
pub fn new(f: F) -> Self {
FnNewServiceNoConfig { f, _t: PhantomData }
}
}
impl<F, C, R, S, E> NewService for FnNewServiceNoConfig<F, C, R, S, E>
where
F: Fn() -> R,
R: IntoFuture<Item = S, Error = E>,
S: Service,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Service = S;
type Config = C;
type InitError = E;
type Future = R::Future;
fn new_service(&self, _: &C) -> Self::Future {
(self.f)().into_future()
}
}
impl<F, C, R, S, E> Clone for FnNewServiceNoConfig<F, C, R, S, E>
where
F: Fn() -> R + Clone,
R: IntoFuture<Item = S, Error = E>,
S: Service,
{
fn clone(&self) -> Self {
Self::new(self.f.clone())
}
}
impl<F, C, R, S, E> IntoNewService<FnNewServiceNoConfig<F, C, R, S, E>> for F
where
F: Fn() -> R,
R: IntoFuture<Item = S, Error = E>,
S: Service,
{
fn into_new_service(self) -> FnNewServiceNoConfig<F, C, R, S, E> {
FnNewServiceNoConfig::new(self)
}
}

View File

@@ -1,80 +0,0 @@
use std::marker::PhantomData;
use futures::future::{ok, FutureResult};
use futures::IntoFuture;
use crate::apply::Apply;
use crate::{IntoTransform, Service, Transform};
/// Use function as transform service
pub fn transform_fn<F, S, In, Out, Err>(
f: F,
) -> impl Transform<S, Request = In, Response = Out::Item, Error = Out::Error, InitError = Err>
where
S: Service,
F: FnMut(In, &mut S) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<S::Error>,
{
FnTransform::new(f)
}
pub struct FnTransform<F, S, In, Out, Err>
where
F: FnMut(In, &mut S) -> Out + Clone,
Out: IntoFuture,
{
f: F,
_t: PhantomData<(S, In, Out, Err)>,
}
impl<F, S, In, Out, Err> FnTransform<F, S, In, Out, Err>
where
F: FnMut(In, &mut S) -> Out + Clone,
Out: IntoFuture,
{
pub fn new(f: F) -> Self {
FnTransform { f, _t: PhantomData }
}
}
impl<F, S, In, Out, Err> Transform<S> for FnTransform<F, S, In, Out, Err>
where
S: Service,
F: FnMut(In, &mut S) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<S::Error>,
{
type Request = In;
type Response = Out::Item;
type Error = Out::Error;
type Transform = Apply<S, F, In, Out>;
type InitError = Err;
type Future = FutureResult<Self::Transform, Self::InitError>;
fn new_transform(&self, service: S) -> Self::Future {
ok(Apply::new(service, self.f.clone()))
}
}
impl<F, S, In, Out, Err> IntoTransform<FnTransform<F, S, In, Out, Err>, S> for F
where
S: Service,
F: FnMut(In, &mut S) -> Out + Clone,
Out: IntoFuture,
Out::Error: From<S::Error>,
{
fn into_transform(self) -> FnTransform<F, S, In, Out, Err> {
FnTransform::new(self)
}
}
impl<F, S, In, Out, Err> Clone for FnTransform<F, S, In, Out, Err>
where
F: FnMut(In, &mut S) -> Out + Clone,
Out: IntoFuture,
{
fn clone(&self) -> Self {
Self::new(self.f.clone())
}
}

View File

@@ -1,459 +0,0 @@
use std::cell::RefCell;
use std::rc::Rc;
use std::sync::Arc;
use futures::{Future, IntoFuture, Poll};
mod and_then;
mod and_then_apply;
mod and_then_apply_fn;
mod apply;
mod apply_cfg;
pub mod blank;
pub mod boxed;
mod cell;
mod fn_service;
mod fn_transform;
mod from_err;
mod map;
mod map_config;
mod map_err;
mod map_init_err;
mod then;
mod transform;
mod transform_err;
pub use self::and_then::{AndThen, AndThenNewService};
pub use self::apply::{apply_fn, new_apply_fn, Apply, ApplyNewService};
pub use self::apply_cfg::{apply_cfg, new_apply_cfg};
pub use self::fn_service::{new_service_cfg, new_service_fn, service_fn, ServiceFn};
pub use self::fn_transform::transform_fn;
pub use self::from_err::{FromErr, FromErrNewService};
pub use self::map::{Map, MapNewService};
pub use self::map_config::{MapConfig, MappedConfig, UnitConfig};
pub use self::map_err::{MapErr, MapErrNewService};
pub use self::map_init_err::MapInitErr;
pub use self::then::{Then, ThenNewService};
pub use self::transform::{apply_transform, IntoTransform, Transform};
use self::and_then_apply::AndThenTransform;
use self::and_then_apply_fn::{AndThenApply, AndThenApplyNewService};
/// An asynchronous function from `Request` to a `Response`.
pub trait Service {
/// Requests handled by the service.
type Request;
/// Responses given by the service.
type Response;
/// Errors produced by the service.
type Error;
/// The future response value.
type Future: Future<Item = Self::Response, Error = Self::Error>;
/// Returns `Ready` when the service is able to process requests.
///
/// If the service is at capacity, then `NotReady` is returned and the task
/// is notified when the service becomes ready again. This function is
/// expected to be called while on a task.
///
/// This is a **best effort** implementation. False positives are permitted.
/// It is permitted for the service to return `Ready` from a `poll_ready`
/// call and the next invocation of `call` results in an error.
fn poll_ready(&mut self) -> Poll<(), Self::Error>;
/// Process the request and return the response asynchronously.
///
/// This function is expected to be callable off task. As such,
/// implementations should take care to not call `poll_ready`. If the
/// service is at capacity and the request is unable to be handled, the
/// returned `Future` should resolve to an error.
///
/// Calling `call` without calling `poll_ready` is permitted. The
/// implementation must be resilient to this fact.
fn call(&mut self, req: Self::Request) -> Self::Future;
}
/// An extension trait for `Service`s that provides a variety of convenient
/// adapters
pub trait ServiceExt: Service {
/// Apply function to specified service and use it as a next service in
/// chain.
fn apply_fn<F, B, B1, Out>(self, service: B1, f: F) -> AndThenApply<Self, B, F, Out>
where
Self: Sized,
F: FnMut(Self::Response, &mut B) -> Out,
Out: IntoFuture,
Out::Error: Into<Self::Error>,
B: Service<Error = Self::Error>,
B1: IntoService<B>,
{
AndThenApply::new(self, service, f)
}
/// Call another service after call to this one has resolved successfully.
///
/// This function can be used to chain two services together and ensure that
/// the second service isn't called until call to the fist service have
/// finished. Result of the call to the first service is used as an
/// input parameter for the second service's call.
///
/// Note that this function consumes the receiving service and returns a
/// wrapped version of it.
fn and_then<F, B>(self, service: F) -> AndThen<Self, B>
where
Self: Sized,
F: IntoService<B>,
B: Service<Request = Self::Response, Error = Self::Error>,
{
AndThen::new(self, service.into_service())
}
/// Map this service's error to any error implementing `From` for
/// this service`s `Error`.
///
/// Note that this function consumes the receiving service and returns a
/// wrapped version of it.
fn from_err<E>(self) -> FromErr<Self, E>
where
Self: Sized,
E: From<Self::Error>,
{
FromErr::new(self)
}
/// Chain on a computation for when a call to the service finished,
/// passing the result of the call to the next service `B`.
///
/// Note that this function consumes the receiving service and returns a
/// wrapped version of it.
fn then<B>(self, service: B) -> Then<Self, B>
where
Self: Sized,
B: Service<Request = Result<Self::Response, Self::Error>, Error = Self::Error>,
{
Then::new(self, service)
}
/// Map this service's output to a different type, returning a new service
/// of the resulting type.
///
/// This function is similar to the `Option::map` or `Iterator::map` where
/// it will change the type of the underlying service.
///
/// Note that this function consumes the receiving service and returns a
/// wrapped version of it, similar to the existing `map` methods in the
/// standard library.
fn map<F, R>(self, f: F) -> Map<Self, F, R>
where
Self: Sized,
F: FnMut(Self::Response) -> R,
{
Map::new(self, f)
}
/// Map this service's error to a different error, returning a new service.
///
/// This function is similar to the `Result::map_err` where it will change
/// the error type of the underlying service. This is useful for example to
/// ensure that services have the same error type.
///
/// Note that this function consumes the receiving service and returns a
/// wrapped version of it.
fn map_err<F, E>(self, f: F) -> MapErr<Self, F, E>
where
Self: Sized,
F: Fn(Self::Error) -> E,
{
MapErr::new(self, f)
}
}
impl<T: ?Sized> ServiceExt for T where T: Service {}
/// Creates new `Service` values.
///
/// Acts as a service factory. This is useful for cases where new `Service`
/// values must be produced. One case is a TCP servier listener. The listner
/// accepts new TCP streams, obtains a new `Service` value using the
/// `NewService` trait, and uses that new `Service` value to process inbound
/// requests on that new TCP stream.
///
/// `Config` is a service factory configuration type.
pub trait NewService {
/// Requests handled by the service.
type Request;
/// Responses given by the service
type Response;
/// Errors produced by the service
type Error;
/// Service factory configuration
type Config;
/// The `Service` value created by this factory
type Service: Service<
Request = Self::Request,
Response = Self::Response,
Error = Self::Error,
>;
/// Errors produced while building a service.
type InitError;
/// The future of the `Service` instance.
type Future: Future<Item = Self::Service, Error = Self::InitError>;
/// Create and return a new service value asynchronously.
fn new_service(&self, cfg: &Self::Config) -> Self::Future;
/// Apply transform service to specified service and use it as a next service in
/// chain.
fn apply<T, T1, B, B1>(self, transform: T1, service: B1) -> AndThenTransform<T, Self, B>
where
Self: Sized,
T: Transform<B::Service, Request = Self::Response, InitError = Self::InitError>,
T::Error: From<Self::Error>,
T1: IntoTransform<T, B::Service>,
B: NewService<Config = Self::Config, InitError = Self::InitError>,
B1: IntoNewService<B>,
{
AndThenTransform::new(transform.into_transform(), self, service.into_new_service())
}
/// Apply function to specified service and use it as a next service in
/// chain.
fn apply_fn<B, I, F, Out>(self, service: I, f: F) -> AndThenApplyNewService<Self, B, F, Out>
where
Self: Sized,
B: NewService<Config = Self::Config, Error = Self::Error, InitError = Self::InitError>,
I: IntoNewService<B>,
F: FnMut(Self::Response, &mut B::Service) -> Out,
Out: IntoFuture,
Out::Error: Into<Self::Error>,
{
AndThenApplyNewService::new(self, service, f)
}
/// Call another service after call to this one has resolved successfully.
fn and_then<F, B>(self, new_service: F) -> AndThenNewService<Self, B>
where
Self: Sized,
F: IntoNewService<B>,
B: NewService<
Config = Self::Config,
Request = Self::Response,
Error = Self::Error,
InitError = Self::InitError,
>,
{
AndThenNewService::new(self, new_service)
}
/// `NewService` that create service to map this service's error
/// and new service's init error to any error
/// implementing `From` for this service`s `Error`.
///
/// Note that this function consumes the receiving new service and returns a
/// wrapped version of it.
fn from_err<E>(self) -> FromErrNewService<Self, E>
where
Self: Sized,
E: From<Self::Error>,
{
FromErrNewService::new(self)
}
/// Create `NewService` to chain on a computation for when a call to the
/// service finished, passing the result of the call to the next
/// service `B`.
///
/// Note that this function consumes the receiving future and returns a
/// wrapped version of it.
fn then<F, B>(self, new_service: F) -> ThenNewService<Self, B>
where
Self: Sized,
F: IntoNewService<B>,
B: NewService<
Config = Self::Config,
Request = Result<Self::Response, Self::Error>,
Error = Self::Error,
InitError = Self::InitError,
>,
{
ThenNewService::new(self, new_service)
}
/// Map this service's output to a different type, returning a new service
/// of the resulting type.
fn map<F, R>(self, f: F) -> MapNewService<Self, F, R>
where
Self: Sized,
F: FnMut(Self::Response) -> R,
{
MapNewService::new(self, f)
}
/// Map this service's error to a different error, returning a new service.
fn map_err<F, E>(self, f: F) -> MapErrNewService<Self, F, E>
where
Self: Sized,
F: Fn(Self::Error) -> E + Clone,
{
MapErrNewService::new(self, f)
}
/// Map this factory's init error to a different error, returning a new service.
fn map_init_err<F, E>(self, f: F) -> MapInitErr<Self, F, E>
where
Self: Sized,
F: Fn(Self::InitError) -> E,
{
MapInitErr::new(self, f)
}
/// Map config to a different error, returning a new service.
fn map_config<F, C>(self, f: F) -> MapConfig<Self, F, C>
where
Self: Sized,
F: Fn(&C) -> MappedConfig<Self::Config>,
{
MapConfig::new(self, f)
}
/// Replace config with unit
fn unit_config<C>(self) -> UnitConfig<Self, C>
where
Self: NewService<Config = ()> + Sized,
{
UnitConfig::new(self)
}
}
impl<'a, S> Service for &'a mut S
where
S: Service + 'a,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Future = S::Future;
fn poll_ready(&mut self) -> Poll<(), S::Error> {
(**self).poll_ready()
}
fn call(&mut self, request: Self::Request) -> S::Future {
(**self).call(request)
}
}
impl<S> Service for Box<S>
where
S: Service + ?Sized,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Future = S::Future;
fn poll_ready(&mut self) -> Poll<(), S::Error> {
(**self).poll_ready()
}
fn call(&mut self, request: Self::Request) -> S::Future {
(**self).call(request)
}
}
impl<S> Service for Rc<RefCell<S>>
where
S: Service,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Future = S::Future;
fn poll_ready(&mut self) -> Poll<(), S::Error> {
self.borrow_mut().poll_ready()
}
fn call(&mut self, request: Self::Request) -> S::Future {
self.borrow_mut().call(request)
}
}
impl<S> NewService for Rc<S>
where
S: NewService,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Config = S::Config;
type Service = S::Service;
type InitError = S::InitError;
type Future = S::Future;
fn new_service(&self, cfg: &S::Config) -> S::Future {
self.as_ref().new_service(cfg)
}
}
impl<S> NewService for Arc<S>
where
S: NewService,
{
type Request = S::Request;
type Response = S::Response;
type Error = S::Error;
type Config = S::Config;
type Service = S::Service;
type InitError = S::InitError;
type Future = S::Future;
fn new_service(&self, cfg: &S::Config) -> S::Future {
self.as_ref().new_service(cfg)
}
}
/// Trait for types that can be converted to a `Service`
pub trait IntoService<T>
where
T: Service,
{
/// Convert to a `Service`
fn into_service(self) -> T;
}
/// Trait for types that can be converted to a `NewService`
pub trait IntoNewService<T>
where
T: NewService,
{
/// Convert to an `NewService`
fn into_new_service(self) -> T;
}
impl<T> IntoService<T> for T
where
T: Service,
{
fn into_service(self) -> T {
self
}
}
impl<T> IntoNewService<T> for T
where
T: NewService,
{
fn into_new_service(self) -> T {
self
}
}

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@@ -1,112 +0,0 @@
use std::marker::PhantomData;
use super::NewService;
pub enum MappedConfig<'a, T> {
Ref(&'a T),
Owned(T),
}
/// `MapInitErr` service combinator
pub struct MapConfig<A, F, C> {
a: A,
f: F,
e: PhantomData<C>,
}
impl<A, F, C> MapConfig<A, F, C> {
/// Create new `MapConfig` combinator
pub fn new(a: A, f: F) -> Self
where
A: NewService,
F: Fn(&C) -> MappedConfig<A::Config>,
{
Self {
a,
f,
e: PhantomData,
}
}
}
impl<A, F, C> Clone for MapConfig<A, F, C>
where
A: Clone,
F: Clone,
{
fn clone(&self) -> Self {
Self {
a: self.a.clone(),
f: self.f.clone(),
e: PhantomData,
}
}
}
impl<A, F, C> NewService for MapConfig<A, F, C>
where
A: NewService,
F: Fn(&C) -> MappedConfig<A::Config>,
{
type Request = A::Request;
type Response = A::Response;
type Error = A::Error;
type Config = C;
type Service = A::Service;
type InitError = A::InitError;
type Future = A::Future;
fn new_service(&self, cfg: &C) -> Self::Future {
match (self.f)(cfg) {
MappedConfig::Ref(cfg) => self.a.new_service(cfg),
MappedConfig::Owned(cfg) => self.a.new_service(&cfg),
}
}
}
/// `MapInitErr` service combinator
pub struct UnitConfig<A, C> {
a: A,
e: PhantomData<C>,
}
impl<A, C> UnitConfig<A, C> {
/// Create new `UnitConfig` combinator
pub fn new(a: A) -> Self
where
A: NewService<Config = ()>,
{
Self { a, e: PhantomData }
}
}
impl<A, C> Clone for UnitConfig<A, C>
where
A: Clone,
{
fn clone(&self) -> Self {
Self {
a: self.a.clone(),
e: PhantomData,
}
}
}
impl<A, C> NewService for UnitConfig<A, C>
where
A: NewService<Config = ()>,
{
type Request = A::Request;
type Response = A::Response;
type Error = A::Error;
type Config = C;
type Service = A::Service;
type InitError = A::InitError;
type Future = A::Future;
fn new_service(&self, _: &C) -> Self::Future {
self.a.new_service(&())
}
}

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@@ -1,232 +0,0 @@
use std::rc::Rc;
use std::sync::Arc;
use futures::{Async, Future, IntoFuture, Poll};
use crate::transform_err::{TransformFromErr, TransformMapInitErr};
use crate::{IntoNewService, NewService, Service};
/// The `Transform` trait defines the interface of a Service factory. `Transform`
/// is often implemented for middleware, defining how to construct a
/// middleware Service. A Service that is constructed by the factory takes
/// the Service that follows it during execution as a parameter, assuming
/// ownership of the next Service.
pub trait Transform<S> {
/// Requests handled by the service.
type Request;
/// Responses given by the service.
type Response;
/// Errors produced by the service.
type Error;
/// The `TransformService` value created by this factory
type Transform: Service<
Request = Self::Request,
Response = Self::Response,
Error = Self::Error,
>;
/// Errors produced while building a service.
type InitError;
/// The future response value.
type Future: Future<Item = Self::Transform, Error = Self::InitError>;
/// Creates and returns a new Service component, asynchronously
fn new_transform(&self, service: S) -> Self::Future;
/// Map this service's factory error to a different error,
/// returning a new transform service factory.
fn map_init_err<F, E>(self, f: F) -> TransformMapInitErr<Self, S, F, E>
where
Self: Sized,
F: Fn(Self::InitError) -> E,
{
TransformMapInitErr::new(self, f)
}
/// Map this service's init error to any error implementing `From` for
/// this service`s `Error`.
///
/// Note that this function consumes the receiving transform and returns a
/// wrapped version of it.
fn from_err<E>(self) -> TransformFromErr<Self, S, E>
where
Self: Sized,
E: From<Self::InitError>,
{
TransformFromErr::new(self)
}
// /// Map this service's init error to service's init error
// /// if it is implementing `Into` to this service`s `InitError`.
// ///
// /// Note that this function consumes the receiving transform and returns a
// /// wrapped version of it.
// fn into_err<E>(self) -> TransformIntoErr<Self, S>
// where
// Self: Sized,
// Self::InitError: From<Self::InitError>,
// {
// TransformFromErr::new(self)
// }
}
impl<T, S> Transform<S> for Rc<T>
where
T: Transform<S>,
{
type Request = T::Request;
type Response = T::Response;
type Error = T::Error;
type InitError = T::InitError;
type Transform = T::Transform;
type Future = T::Future;
fn new_transform(&self, service: S) -> T::Future {
self.as_ref().new_transform(service)
}
}
impl<T, S> Transform<S> for Arc<T>
where
T: Transform<S>,
{
type Request = T::Request;
type Response = T::Response;
type Error = T::Error;
type InitError = T::InitError;
type Transform = T::Transform;
type Future = T::Future;
fn new_transform(&self, service: S) -> T::Future {
self.as_ref().new_transform(service)
}
}
/// Trait for types that can be converted to a *transform service*
pub trait IntoTransform<T, S>
where
T: Transform<S>,
{
/// Convert to a `TransformService`
fn into_transform(self) -> T;
}
impl<T, S> IntoTransform<T, S> for T
where
T: Transform<S>,
{
fn into_transform(self) -> T {
self
}
}
/// Apply transform to service factory. Function returns
/// services factory that in initialization creates
/// service and applies transform to this service.
pub fn apply_transform<T, S, F, U>(
t: F,
service: U,
) -> impl NewService<
Config = S::Config,
Request = T::Request,
Response = T::Response,
Error = T::Error,
Service = T::Transform,
InitError = S::InitError,
> + Clone
where
S: NewService,
T: Transform<S::Service, InitError = S::InitError>,
F: IntoTransform<T, S::Service>,
U: IntoNewService<S>,
{
ApplyTransform::new(t.into_transform(), service.into_new_service())
}
/// `Apply` transform to new service
pub struct ApplyTransform<T, S> {
s: Rc<S>,
t: Rc<T>,
}
impl<T, S> ApplyTransform<T, S>
where
S: NewService,
T: Transform<S::Service, InitError = S::InitError>,
{
/// Create new `ApplyTransform` new service instance
pub fn new<F: IntoTransform<T, S::Service>>(t: F, service: S) -> Self {
Self {
s: Rc::new(service),
t: Rc::new(t.into_transform()),
}
}
}
impl<T, S> Clone for ApplyTransform<T, S> {
fn clone(&self) -> Self {
ApplyTransform {
s: self.s.clone(),
t: self.t.clone(),
}
}
}
impl<T, S> NewService for ApplyTransform<T, S>
where
S: NewService,
T: Transform<S::Service, InitError = S::InitError>,
{
type Request = T::Request;
type Response = T::Response;
type Error = T::Error;
type Config = S::Config;
type Service = T::Transform;
type InitError = T::InitError;
type Future = ApplyTransformFuture<T, S>;
fn new_service(&self, cfg: &S::Config) -> Self::Future {
ApplyTransformFuture {
t_cell: self.t.clone(),
fut_a: self.s.new_service(cfg).into_future(),
fut_t: None,
}
}
}
pub struct ApplyTransformFuture<T, S>
where
S: NewService,
T: Transform<S::Service, InitError = S::InitError>,
{
fut_a: S::Future,
fut_t: Option<<T::Future as IntoFuture>::Future>,
t_cell: Rc<T>,
}
impl<T, S> Future for ApplyTransformFuture<T, S>
where
S: NewService,
T: Transform<S::Service, InitError = S::InitError>,
{
type Item = T::Transform;
type Error = T::InitError;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
if self.fut_t.is_none() {
if let Async::Ready(service) = self.fut_a.poll()? {
self.fut_t = Some(self.t_cell.new_transform(service).into_future());
}
}
if let Some(ref mut fut) = self.fut_t {
fut.poll()
} else {
Ok(Async::NotReady)
}
}
}

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@@ -1,162 +0,0 @@
use std::marker::PhantomData;
use futures::{Future, Poll};
use super::Transform;
/// Transform for the `map_err` combinator, changing the type of a new
/// transform's init error.
///
/// This is created by the `Transform::map_err` method.
pub struct TransformMapInitErr<T, S, F, E> {
t: T,
f: F,
e: PhantomData<(S, E)>,
}
impl<T, S, F, E> TransformMapInitErr<T, S, F, E> {
/// Create new `TransformMapErr` new transform instance
pub fn new(t: T, f: F) -> Self
where
T: Transform<S>,
F: Fn(T::InitError) -> E,
{
Self {
t,
f,
e: PhantomData,
}
}
}
impl<T, S, F, E> Clone for TransformMapInitErr<T, S, F, E>
where
T: Clone,
F: Clone,
{
fn clone(&self) -> Self {
Self {
t: self.t.clone(),
f: self.f.clone(),
e: PhantomData,
}
}
}
impl<T, S, F, E> Transform<S> for TransformMapInitErr<T, S, F, E>
where
T: Transform<S>,
F: Fn(T::InitError) -> E + Clone,
{
type Request = T::Request;
type Response = T::Response;
type Error = T::Error;
type Transform = T::Transform;
type InitError = E;
type Future = TransformMapInitErrFuture<T, S, F, E>;
fn new_transform(&self, service: S) -> Self::Future {
TransformMapInitErrFuture {
fut: self.t.new_transform(service),
f: self.f.clone(),
}
}
}
pub struct TransformMapInitErrFuture<T, S, F, E>
where
T: Transform<S>,
F: Fn(T::InitError) -> E,
{
fut: T::Future,
f: F,
}
impl<T, S, F, E> Future for TransformMapInitErrFuture<T, S, F, E>
where
T: Transform<S>,
F: Fn(T::InitError) -> E + Clone,
{
type Item = T::Transform;
type Error = E;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
self.fut.poll().map_err(&self.f)
}
}
/// Transform for the `from_err` combinator, changing the type of a new
/// transform's init error.
///
/// This is created by the `Transform::from_err` method.
pub struct TransformFromErr<T, S, E> {
t: T,
e: PhantomData<(S, E)>,
}
impl<T, S, E> TransformFromErr<T, S, E>
where
T: Transform<S>,
E: From<T::InitError>,
{
/// Create new `TransformFromErr` new transform instance
pub fn new(t: T) -> Self {
Self { t, e: PhantomData }
}
}
impl<T, S, E> Clone for TransformFromErr<T, S, E>
where
T: Clone,
{
fn clone(&self) -> Self {
Self {
t: self.t.clone(),
e: PhantomData,
}
}
}
impl<T, S, E> Transform<S> for TransformFromErr<T, S, E>
where
T: Transform<S>,
E: From<T::InitError>,
{
type Request = T::Request;
type Response = T::Response;
type Error = T::Error;
type Transform = T::Transform;
type InitError = E;
type Future = TransformFromErrFuture<T, S, E>;
fn new_transform(&self, service: S) -> Self::Future {
TransformFromErrFuture {
fut: self.t.new_transform(service),
_t: PhantomData,
}
}
}
pub struct TransformFromErrFuture<T, S, E>
where
T: Transform<S>,
E: From<T::InitError>,
{
fut: T::Future,
_t: PhantomData<E>,
}
impl<T, S, E> Future for TransformFromErrFuture<T, S, E>
where
T: Transform<S>,
E: From<T::InitError>,
{
type Item = T::Transform;
type Error = E;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
self.fut.poll().map_err(E::from)
}
}

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@@ -1,59 +0,0 @@
[package]
name = "actix-test-server"
version = "0.2.2"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix test server"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-test-server/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[package.metadata.docs.rs]
features = ["ssl", "tls", "rust-tls"]
[lib]
name = "actix_test_server"
path = "src/lib.rs"
[features]
default = []
# tls
tls = ["native-tls", "actix-server/tls"]
# openssl
ssl = ["openssl", "actix-server/ssl"]
# rustls
rust-tls = ["rustls", "tokio-rustls", "webpki", "webpki-roots"]
[dependencies]
actix-rt = "0.2.1"
actix-server = "0.5.0"
actix-server-config = "0.1.0"
log = "0.4"
net2 = "0.2"
futures = "0.1"
tokio-tcp = "0.1"
tokio-reactor = "0.1"
# native-tls
native-tls = { version="0.2", optional = true }
# openssl
openssl = { version="0.10", optional = true }
#rustls
rustls = { version = "^0.15", optional = true }
tokio-rustls = { version = "^0.9", optional = true }
webpki = { version = "0.19", optional = true }
webpki-roots = { version = "0.16", optional = true }
[dev-dependencies]
actix-service = "0.4.0"

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@@ -1 +0,0 @@
../LICENSE-APACHE

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../LICENSE-MIT

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@@ -1,149 +0,0 @@
//! Various helpers for Actix applications to use during testing.
use std::sync::mpsc;
use std::{net, thread};
use actix_rt::{Runtime, System};
use actix_server::{Server, StreamServiceFactory};
pub use actix_server_config::{Io, ServerConfig};
use futures::future::{lazy, Future, IntoFuture};
use net2::TcpBuilder;
use tokio_reactor::Handle;
use tokio_tcp::TcpStream;
/// The `TestServer` type.
///
/// `TestServer` is very simple test server that simplify process of writing
/// integration tests for actix-net applications.
///
/// # Examples
///
/// ```rust
/// use actix_service::{service_fn, IntoNewService};
/// use actix_test_server::TestServer;
///
/// fn main() {
/// let srv = TestServer::with(|| service_fn(
/// |sock| {
/// println!("New connection: {:?}", sock);
/// Ok::<_, ()>(())
/// }
/// ));
///
/// println!("SOCKET: {:?}", srv.connect());
/// }
/// ```
pub struct TestServer;
/// Test server runstime
pub struct TestServerRuntime {
addr: net::SocketAddr,
host: String,
port: u16,
rt: Runtime,
}
impl TestServer {
/// Start new test server with application factory
pub fn with<F: StreamServiceFactory>(factory: F) -> TestServerRuntime {
let (tx, rx) = mpsc::channel();
// run server in separate thread
thread::spawn(move || {
let sys = System::new("actix-test-server");
let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
let local_addr = tcp.local_addr().unwrap();
Server::build()
.listen("test", tcp, factory)?
.workers(1)
.disable_signals()
.start();
tx.send((System::current(), local_addr)).unwrap();
sys.run()
});
let (system, addr) = rx.recv().unwrap();
System::set_current(system);
let rt = Runtime::new().unwrap();
let host = format!("{}", addr.ip());
let port = addr.port();
TestServerRuntime {
addr,
rt,
host,
port,
}
}
/// Get firat available unused local address
pub fn unused_addr() -> net::SocketAddr {
let addr: net::SocketAddr = "127.0.0.1:0".parse().unwrap();
let socket = TcpBuilder::new_v4().unwrap();
socket.bind(&addr).unwrap();
socket.reuse_address(true).unwrap();
let tcp = socket.to_tcp_listener().unwrap();
tcp.local_addr().unwrap()
}
}
impl TestServerRuntime {
/// Execute future on current runtime
pub fn block_on<F, I, E>(&mut self, fut: F) -> Result<I, E>
where
F: Future<Item = I, Error = E>,
{
self.rt.block_on(fut)
}
/// Runs the provided function, with runtime enabled.
pub fn run_on<F, R>(&mut self, f: F) -> Result<R::Item, R::Error>
where
F: FnOnce() -> R,
R: IntoFuture,
{
self.rt.block_on(lazy(|| f().into_future()))
}
/// Spawn future to the current runtime
pub fn spawn<F>(&mut self, fut: F)
where
F: Future<Item = (), Error = ()> + 'static,
{
self.rt.spawn(fut);
}
/// Test server host
pub fn host(&self) -> &str {
&self.host
}
/// Test server port
pub fn port(&self) -> u16 {
self.port
}
/// Get test server address
pub fn addr(&self) -> net::SocketAddr {
self.addr
}
/// Stop http server
fn stop(&mut self) {
System::current().stop();
}
/// Connect to server, return tokio TcpStream
pub fn connect(&self) -> std::io::Result<TcpStream> {
TcpStream::from_std(net::TcpStream::connect(self.addr)?, &Handle::default())
}
}
impl Drop for TestServerRuntime {
fn drop(&mut self) {
self.stop()
}
}

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@@ -1,13 +0,0 @@
# Changes
### Changed
* Update `derive_more` to 0.15
## [0.1.1] - 2019-06-05
* Update parking_lot
## [0.1.0] - 2019-03-28
* Move threadpool to separate crate

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@@ -1,27 +0,0 @@
[package]
name = "actix-threadpool"
version = "0.1.1"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix thread pool for sync code"
keywords = ["actix", "network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-threadpool/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[lib]
name = "actix_threadpool"
path = "src/lib.rs"
[dependencies]
derive_more = "0.15"
futures = "0.1.25"
parking_lot = "0.8"
lazy_static = "1.2"
log = "0.4"
num_cpus = "1.10"
threadpool = "1.7"

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../LICENSE-APACHE

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@@ -1 +0,0 @@
../LICENSE-MIT

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@@ -1,88 +0,0 @@
//! Thread pool for blocking operations
use std::fmt;
use derive_more::Display;
use futures::sync::oneshot;
use futures::{Async, Future, Poll};
use parking_lot::Mutex;
use threadpool::ThreadPool;
/// Env variable for default cpu pool size
const ENV_CPU_POOL_VAR: &str = "ACTIX_THREADPOOL";
lazy_static::lazy_static! {
pub(crate) static ref DEFAULT_POOL: Mutex<ThreadPool> = {
let default = match std::env::var(ENV_CPU_POOL_VAR) {
Ok(val) => {
if let Ok(val) = val.parse() {
val
} else {
log::error!("Can not parse ACTIX_THREADPOOL value");
num_cpus::get() * 5
}
}
Err(_) => num_cpus::get() * 5,
};
Mutex::new(
threadpool::Builder::new()
.thread_name("actix-web".to_owned())
.num_threads(default)
.build(),
)
};
}
thread_local! {
static POOL: ThreadPool = {
DEFAULT_POOL.lock().clone()
};
}
/// Blocking operation execution error
#[derive(Debug, Display)]
pub enum BlockingError<E: fmt::Debug> {
#[display(fmt = "{:?}", _0)]
Error(E),
#[display(fmt = "Thread pool is gone")]
Canceled,
}
/// Execute blocking function on a thread pool, returns future that resolves
/// to result of the function execution.
pub fn run<F, I, E>(f: F) -> CpuFuture<I, E>
where
F: FnOnce() -> Result<I, E> + Send + 'static,
I: Send + 'static,
E: Send + fmt::Debug + 'static,
{
let (tx, rx) = oneshot::channel();
POOL.with(|pool| {
pool.execute(move || {
if !tx.is_canceled() {
let _ = tx.send(f());
}
})
});
CpuFuture { rx }
}
/// Blocking operation completion future. It resolves with results
/// of blocking function execution.
pub struct CpuFuture<I, E> {
rx: oneshot::Receiver<Result<I, E>>,
}
impl<I, E: fmt::Debug> Future for CpuFuture<I, E> {
type Item = I;
type Error = BlockingError<E>;
fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
let res = futures::try_ready!(self.rx.poll().map_err(|_| BlockingError::Canceled));
match res {
Ok(val) => Ok(Async::Ready(val)),
Err(err) => Err(BlockingError::Error(err)),
}
}
}

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@@ -1,2 +0,0 @@
# Changes

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@@ -1,29 +0,0 @@
[package]
name = "actix-tower"
version = "0.1.0"
authors = ["Nikolay Kim <fafhrd91@gmail.com>", "Marcus Griep <marcus@griep.us>"]
description = "Actix Tower"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-tower/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[badges]
travis-ci = { repository = "actix/actix-tower", branch = "master" }
appveyor = { repository = "actix/actix-net" }
codecov = { repository = "actix/actix-tower", branch = "master", service = "github" }
[lib]
name = "actix_tower"
path = "src/lib.rs"
[dependencies]
actix-service = "0.3.6"
futures = "0.1.24"
tower-service = "0.2.0"

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../LICENSE-APACHE

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../LICENSE-MIT

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//! Utilities to provide interoperability between services based on the
//! `actix-service` and `tower-service` crates.
//!
//! ## Example
//!
//! In the following example, we take a `RandomService`—which will always
//! return 4—and wraps it with a middleware that will always add 1 to the
//! result. This pattern can be further used to wrap services from either
//! `tower-service` or `actix-service` with middleware provided by the other.
//!
//! ```
//! use actix_tower::ActixServiceExt;
//! # use futures::{Async, Future};
//! use actix_service::Service;
//!
//! struct RandomService;
//! impl Service for RandomService {
//! // …
//! # type Request = ();
//! # type Response = u32;
//! # type Error = ();
//! # type Future = futures::future::FutureResult<Self::Response, Self::Error>;
//! #
//! # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
//! # Ok(Async::Ready(()))
//! # }
//! #
//! # fn call(&mut self, _req: Self::Request) -> Self::Future {
//! # futures::finished(4)
//! # }
//! }
//!
//! struct AddOneMiddleware<S>(S);
//! impl<S, R> tower_service::Service<R> for AddOneMiddleware<S>
//! where
//! S: tower_service::Service<R, Response = u32>,
//! S::Future: 'static,
//! {
//! /// …
//! # type Response = u32;
//! # type Error = S::Error;
//! # type Future = Box<dyn Future<Item = Self::Response, Error = Self::Error>>;
//! #
//! # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
//! # self.0.poll_ready()
//! # }
//! #
//! # fn call(&mut self, req: R) -> Self::Future {
//! # let fut = self.0.call(req).map(|x| x + 1);
//! # Box::new(fut)
//! # }
//! }
//!
//! let mut s = RandomService.wrap_with_tower_middleware(AddOneMiddleware);
//! assert_eq!(Ok(Async::Ready(())), s.poll_ready());
//! assert_eq!(Ok(Async::Ready(5)), s.call(()).poll());
//! ```
use actix_service::Service as ActixService;
use std::marker::PhantomData;
use tower_service::Service as TowerService;
/// Compatibility wrapper associating a `tower_service::Service` with a particular
/// `Request` type, so that it can be used as an `actix_service::Service`.
///
/// Generally created through convenience methods on the `TowerServiceExt<R>` trait.
pub struct ActixCompat<S, R> {
inner: S,
_phantom: PhantomData<R>,
}
impl<S, R> ActixCompat<S, R> {
/// Wraps a `tower_service::Service` in a compatibility wrapper.
pub fn new(inner: S) -> Self {
ActixCompat {
inner,
_phantom: PhantomData,
}
}
}
/// Extension trait for wrapping a `tower_service::Service` instance for use as
/// an `actix_service::Service`.
pub trait TowerServiceExt<R>: TowerService<R> + Sized {
/// Wraps a `tower_service::Service` in a compatibility wrapper.
///
/// ```
/// use actix_service::Service;
/// use actix_tower::TowerServiceExt;
/// # use futures::{Async, Future};
///
/// struct RandomService;
/// impl<R> tower_service::Service<R> for RandomService {
/// // …
/// # type Response = u32;
/// # type Error = ();
/// # type Future = futures::future::FutureResult<Self::Response, Self::Error>;
/// #
/// # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
/// # Ok(Async::Ready(()))
/// # }
/// #
/// # fn call(&mut self, _req: R) -> Self::Future {
/// # futures::finished(4)
/// # }
/// }
///
/// let mut s = RandomService.into_actix_service();
/// assert_eq!(Ok(Async::Ready(())), s.poll_ready());
/// assert_eq!(Ok(Async::Ready(4)), s.call(()).poll());
/// ```
fn into_actix_service(self) -> ActixCompat<Self, R> {
ActixCompat::new(self)
}
/// Takes a function that, when provided with an `actix_service::Service` wraps it
/// and returns a new service. Useful for wrapping a `tower_service::Service` with
/// middleware built for `actix_service`.
///
/// ```
/// use actix_tower::TowerServiceExt;
/// # use futures::{Async, Future};
/// use tower_service::Service;
///
/// struct RandomService;
/// impl<R> Service<R> for RandomService {
/// // …
/// # type Response = u32;
/// # type Error = ();
/// # type Future = futures::future::FutureResult<Self::Response, Self::Error>;
/// #
/// # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
/// # Ok(Async::Ready(()))
/// # }
/// #
/// # fn call(&mut self, _req: R) -> Self::Future {
/// # futures::finished(4)
/// # }
/// }
///
/// struct AddOneTransform<S>(S);
/// impl<S> actix_service::Service for AddOneTransform<S>
/// where
/// S: actix_service::Service<Response = u32>,
/// S::Future: 'static,
/// {
/// /// …
/// # type Request = S::Request;
/// # type Response = u32;
/// # type Error = S::Error;
/// # type Future = Box<dyn Future<Item = Self::Response, Error = Self::Error>>;
/// #
/// # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
/// # self.0.poll_ready()
/// # }
/// #
/// # fn call(&mut self, req: Self::Request) -> Self::Future {
/// # let fut = self.0.call(req).map(|x| x + 1);
/// # Box::new(fut)
/// # }
/// }
///
/// let mut s = RandomService.wrap_with_actix_middleware(AddOneTransform);
/// assert_eq!(Ok(Async::Ready(())), s.poll_ready());
/// assert_eq!(Ok(Async::Ready(5)), s.call(()).poll());
/// ```
fn wrap_with_actix_middleware<F, U>(self, f: F) -> TowerCompat<U>
where
F: FnOnce(ActixCompat<Self, R>) -> U,
U: ActixService<Request = R>,
{
f(self.into_actix_service()).into_tower_service()
}
}
impl<S, R> TowerServiceExt<R> for S where S: TowerService<R> + Sized {}
impl<S, R> ActixService for ActixCompat<S, R>
where
S: TowerService<R>,
{
type Request = R;
type Response = S::Response;
type Error = S::Error;
type Future = S::Future;
fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
TowerService::poll_ready(&mut self.inner)
}
fn call(&mut self, req: Self::Request) -> Self::Future {
TowerService::call(&mut self.inner, req)
}
}
/// Compatibility wrapper associating an `actix_service::Service` with a particular
/// `Request` type, so that it can be used as a `tower_service::Service`.
///
/// Generally created through convenience methods on the `ActixServiceExt<R>` trait.
pub struct TowerCompat<S> {
inner: S,
}
impl<S> TowerCompat<S> {
/// Wraps an `actix_service::Service` in a compatibility wrapper.
pub fn new(inner: S) -> Self {
TowerCompat { inner }
}
}
/// Extension trait for wrapping an `actix_service::Service` instance for use as
/// a `tower_service::Service`.
pub trait ActixServiceExt: ActixService + Sized {
/// Wraps a `tower_service::Service` in a compatibility wrapper.
///
/// ```
/// use actix_tower::ActixServiceExt;
/// # use futures::{Async, Future};
/// use tower_service::Service;
///
/// struct RandomService;
/// impl actix_service::Service for RandomService {
/// // …
/// # type Request = ();
/// # type Response = u32;
/// # type Error = ();
/// # type Future = futures::future::FutureResult<Self::Response, Self::Error>;
/// #
/// # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
/// # Ok(Async::Ready(()))
/// # }
/// #
/// # fn call(&mut self, _req: Self::Request) -> Self::Future {
/// # futures::finished(4)
/// # }
/// }
///
/// let mut s = RandomService.into_tower_service();
/// assert_eq!(Ok(Async::Ready(())), s.poll_ready());
/// assert_eq!(Ok(Async::Ready(4)), s.call(()).poll());
/// ```
fn into_tower_service(self) -> TowerCompat<Self> {
TowerCompat::new(self)
}
/// Takes a function that, when provided with a `tower_service::Service` wraps it
/// and returns a new service. Useful for wrapping an `actix_service::Service` with
/// middleware built for `tower_service`.
///
/// ```
/// use actix_tower::ActixServiceExt;
/// # use futures::{Async, Future};
/// use actix_service::Service;
///
/// struct RandomService;
/// impl Service for RandomService {
/// // …
/// # type Request = ();
/// # type Response = u32;
/// # type Error = ();
/// # type Future = futures::future::FutureResult<Self::Response, Self::Error>;
/// #
/// # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
/// # Ok(Async::Ready(()))
/// # }
/// #
/// # fn call(&mut self, _req: Self::Request) -> Self::Future {
/// # futures::finished(4)
/// # }
/// }
///
/// struct AddOneMiddleware<S>(S);
/// impl<S, R> tower_service::Service<R> for AddOneMiddleware<S>
/// where
/// S: tower_service::Service<R, Response = u32>,
/// S::Future: 'static,
/// {
/// /// …
/// # type Response = u32;
/// # type Error = S::Error;
/// # type Future = Box<dyn Future<Item = Self::Response, Error = Self::Error>>;
/// #
/// # fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
/// # self.0.poll_ready()
/// # }
/// #
/// # fn call(&mut self, req: R) -> Self::Future {
/// # let fut = self.0.call(req).map(|x| x + 1);
/// # Box::new(fut)
/// # }
/// }
///
/// let mut s = RandomService.wrap_with_tower_middleware(AddOneMiddleware);
/// assert_eq!(Ok(Async::Ready(())), s.poll_ready());
/// assert_eq!(Ok(Async::Ready(5)), s.call(()).poll());
/// ```
fn wrap_with_tower_middleware<F, U>(self, f: F) -> ActixCompat<U, Self::Request>
where
F: FnOnce(TowerCompat<Self>) -> U,
U: TowerService<Self::Request>,
{
f(self.into_tower_service()).into_actix_service()
}
}
impl<S> ActixServiceExt for S where S: ActixService + Sized {}
impl<S> TowerService<S::Request> for TowerCompat<S>
where
S: ActixService,
{
type Response = S::Response;
type Error = S::Error;
type Future = S::Future;
fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
ActixService::poll_ready(&mut self.inner)
}
fn call(&mut self, req: S::Request) -> Self::Future {
ActixService::call(&mut self.inner, req)
}
}
#[cfg(test)]
mod tests {
mod tower_service_into_actix_service {
use crate::TowerServiceExt;
use actix_service::{Service as ActixService, ServiceExt, Transform};
use futures::{future::FutureResult, Async, Future, Poll};
use tower_service::Service as TowerService;
#[test]
fn random_service_returns_4() {
let mut s = RandomService.into_actix_service();
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(4)), s.call(()).poll());
}
#[test]
fn random_service_can_combine() {
let mut s = RandomService.into_actix_service().map(|x| x + 1);
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(5)), s.call(()).poll());
}
#[test]
fn random_service_can_use_actix_middleware() {
let mut s = RandomService.wrap_with_actix_middleware(DoMathTransform);
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(68)), s.call(()).poll());
}
#[test]
fn random_service_and_add_service_chained() {
let s1 = RandomService.into_actix_service();
let s2 = AddOneService.into_actix_service();
let s3 = AddOneService.into_actix_service();
let mut s = s1.and_then(s2).and_then(s3);
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(6)), s.call(()).poll());
}
#[test]
fn random_service_and_add_service_and_ignoring_service_chained() {
let s1 = RandomService.into_actix_service();
let s2 = AddOneService.into_actix_service();
let s3 = AddOneService.into_actix_service();
let s4 = RandomService.into_actix_service();
let mut s = s1.and_then(s2).and_then(s3).and_then(s4);
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(4)), s.call(()).poll());
}
#[test]
fn random_service_can_be_transformed_to_do_math() {
let transform = DoMath;
let mut s = transform
.new_transform(RandomService.into_actix_service())
.wait()
.unwrap();
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(68)), s.call(()).poll());
}
struct RandomService;
impl<R> TowerService<R> for RandomService {
type Response = u32;
type Error = ();
type Future = FutureResult<Self::Response, Self::Error>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, _req: R) -> Self::Future {
futures::finished(4)
}
}
struct AddOneService;
impl TowerService<u32> for AddOneService {
type Response = u32;
type Error = ();
type Future = FutureResult<Self::Response, Self::Error>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, req: u32) -> Self::Future {
futures::finished(req + 1)
}
}
struct DoMathTransform<S>(S);
impl<S> ActixService for DoMathTransform<S>
where
S: ActixService<Response = u32>,
S::Future: 'static,
{
type Request = S::Request;
type Response = u32;
type Error = S::Error;
type Future = Box<dyn Future<Item = Self::Response, Error = Self::Error>>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
self.0.poll_ready()
}
fn call(&mut self, req: Self::Request) -> Self::Future {
let fut = self.0.call(req).map(|x| x * 17);
Box::new(fut)
}
}
struct DoMath;
impl<S> Transform<S> for DoMath
where
S: ActixService<Response = u32>,
S::Future: 'static,
{
type Request = S::Request;
type Response = u32;
type Error = S::Error;
type Transform = DoMathTransform<S>;
type InitError = ();
type Future = FutureResult<Self::Transform, Self::InitError>;
fn new_transform(&self, service: S) -> Self::Future {
futures::finished(DoMathTransform(service))
}
}
}
mod actix_service_into_tower_service {
use crate::{ActixServiceExt, TowerServiceExt};
use actix_service::{Service as ActixService, ServiceExt};
use futures::{future::FutureResult, Async, Future, Poll};
use tower_service::Service as TowerService;
#[test]
fn random_service_returns_4() {
let mut s = RandomService.into_tower_service();
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(4)), s.call(()).poll());
}
#[test]
fn random_service_can_use_tower_middleware() {
let mut s =
AddOneService::wrap(RandomService.into_tower_service()).into_actix_service();
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(5)), s.call(()).poll());
}
#[test]
fn do_math_service_can_use_tower_middleware() {
let mut s =
AddOneService::wrap(DoMathService.into_tower_service()).into_actix_service();
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(188)), s.call(11).poll());
}
#[test]
fn random_service_and_add_service_and_ignoring_service_chained() {
let s1 = RandomService.wrap_with_tower_middleware(AddOneService::wrap);
let s2 = DoMathService.wrap_with_tower_middleware(AddOneService::wrap);
let mut s = s1.and_then(s2);
assert_eq!(Ok(Async::Ready(())), s.poll_ready());
assert_eq!(Ok(Async::Ready(86)), s.call(()).poll());
}
struct RandomService;
impl ActixService for RandomService {
type Request = ();
type Response = u32;
type Error = ();
type Future = FutureResult<Self::Response, Self::Error>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, _req: Self::Request) -> Self::Future {
futures::finished(4)
}
}
struct AddOneService<S> {
inner: S,
}
impl<S> AddOneService<S> {
fn wrap(inner: S) -> Self {
AddOneService { inner }
}
}
impl<S, R> TowerService<R> for AddOneService<S>
where
S: TowerService<R, Response = u32>,
S::Future: 'static,
{
type Response = u32;
type Error = S::Error;
type Future = Box<dyn Future<Item = Self::Response, Error = Self::Error>>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
self.inner.poll_ready()
}
fn call(&mut self, req: R) -> Self::Future {
let fut = self.inner.call(req).map(|x| x + 1);
Box::new(fut)
}
}
struct DoMathService;
impl ActixService for DoMathService {
type Request = u32;
type Response = u32;
type Error = ();
type Future = FutureResult<Self::Response, Self::Error>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, req: Self::Request) -> Self::Future {
futures::finished(req * 17)
}
}
}
}

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# Changes
## [0.4.5] - 2019-07-19
### Removed
* Deprecated `CloneableService` as it is not safe
## [0.4.4] - 2019-07-17
### Changed
* Undeprecate `FramedTransport` as it is actually useful
## [0.4.3] - 2019-07-17
### Deprecated
* 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
### Fixed
* Do not block on sink drop for FramedTransport
## [0.4.1] - 2019-05-15
### Changed
* Change `Either` constructor
## [0.4.0] - 2019-05-11
### Changed
* Change `Either` to handle two nexted services
* Upgrade actix-service 0.4
### Deleted
* Framed related services
* Stream related services
## [0.3.5] - 2019-04-04
### Added
* Allow to send messages to `FramedTransport` via mpsc channel.
### Changed
* Remove 'static constraint from Clonable service
## [0.3.4] - 2019-03-12
### Changed
* `TimeoutService`, `InOrderService`, `InFlightService` accepts generic IntoService services.
### Fixed
* Fix `InFlightService::poll_ready()` nested service readiness check
* Fix `InOrderService::poll_ready()` nested service readiness check
## [0.3.3] - 2019-03-09
### Changed
* Revert IntoFuture change
* Add generic config param for IntoFramed and TakeOne new services
## [0.3.2] - 2019-03-04
### Changed
* Use IntoFuture for new services
## [0.3.1] - 2019-03-04
### Changed
* Use new type of transform trait
## [0.3.0] - 2019-03-02
### Changed
* Use new `NewService` trait
* BoxedNewService` and `BoxedService` types moved to actix-service crate.
## [0.2.4] - 2019-02-21
### Changed
* Custom `BoxedNewService` implementation.
## [0.2.3] - 2019-02-21
### Added
* Add `BoxedNewService` and `BoxedService`
## [0.2.2] - 2019-02-11
### Added
* Add `Display` impl for `TimeoutError`
* Add `Display` impl for `InOrderError`
## [0.2.1] - 2019-02-06
### Added
* Add `InOrder` service. the service yields responses as they become available,
in the order that their originating requests were submitted to the service.
### Changed
* 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
## [0.1.0] - 2018-12-09
* Move utils services to separate crate

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[package]
name = "actix-utils"
version = "0.4.5"
authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
description = "Actix utils - various actix net related services"
keywords = ["network", "framework", "async", "futures"]
homepage = "https://actix.rs"
repository = "https://github.com/actix/actix-net.git"
documentation = "https://docs.rs/actix-utils/"
categories = ["network-programming", "asynchronous"]
license = "MIT/Apache-2.0"
exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
edition = "2018"
workspace = ".."
[lib]
name = "actix_utils"
path = "src/lib.rs"
[dependencies]
actix-service = "0.4.1"
actix-codec = "0.1.2"
bytes = "0.4"
either = "1.5.2"
futures = "0.1.25"
tokio-timer = "0.2.8"
tokio-current-thread = "0.1.4"
log = "0.4"
[dev-dependencies]
actix-rt = "0.2.2"

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../LICENSE-APACHE

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../LICENSE-MIT

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//! Custom cell impl
use std::cell::UnsafeCell;
use std::fmt;
use std::rc::Rc;
pub(crate) struct Cell<T> {
inner: Rc<UnsafeCell<T>>,
}
impl<T> Clone for Cell<T> {
fn clone(&self) -> Self {
Self {
inner: self.inner.clone(),
}
}
}
impl<T: fmt::Debug> fmt::Debug for Cell<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.inner.fmt(f)
}
}
impl<T> Cell<T> {
pub fn new(inner: T) -> Self {
Self {
inner: Rc::new(UnsafeCell::new(inner)),
}
}
pub fn get_ref(&self) -> &T {
unsafe { &*self.inner.as_ref().get() }
}
pub fn get_mut(&mut self) -> &mut T {
unsafe { &mut *self.inner.as_ref().get() }
}
}

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use std::cell::Cell;
use std::rc::Rc;
use futures::task::AtomicTask;
#[derive(Clone)]
/// Simple counter with ability to notify task on reaching specific number
///
/// Counter could be cloned, total ncount is shared across all clones.
pub struct Counter(Rc<CounterInner>);
struct CounterInner {
count: Cell<usize>,
capacity: usize,
task: AtomicTask,
}
impl Counter {
/// Create `Counter` instance and set max value.
pub fn new(capacity: usize) -> Self {
Counter(Rc::new(CounterInner {
capacity,
count: Cell::new(0),
task: AtomicTask::new(),
}))
}
pub fn get(&self) -> CounterGuard {
CounterGuard::new(self.0.clone())
}
/// Check if counter is not at capacity
pub fn available(&self) -> bool {
self.0.available()
}
/// Get total number of acquired counts
pub fn total(&self) -> usize {
self.0.count.get()
}
}
pub struct CounterGuard(Rc<CounterInner>);
impl CounterGuard {
fn new(inner: Rc<CounterInner>) -> Self {
inner.inc();
CounterGuard(inner)
}
}
impl Drop for CounterGuard {
fn drop(&mut self) {
self.0.dec();
}
}
impl CounterInner {
fn inc(&self) {
let num = self.count.get() + 1;
self.count.set(num);
if num == self.capacity {
self.task.register();
}
}
fn dec(&self) {
let num = self.count.get();
self.count.set(num - 1);
if num == self.capacity {
self.task.notify();
}
}
fn available(&self) -> bool {
self.count.get() < self.capacity
}
}

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