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actix-web
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expose multiple types related to InnerConnector

This commit is contained in:
fakeshadow 2021-02-21 13:42:02 -08:00
parent 73c2c68aac
commit 22f251de1a
3 changed files with 86 additions and 106 deletions
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2
actix-http/src/client/connection.rs
View File

@ -187,7 +187,7 @@ impl<T: AsyncRead + AsyncWrite + Unpin> IoConnection<T> {
}
#[allow(dead_code)]
pub(crate) enum EitherIoConnection<A, B>
pub enum EitherIoConnection<A, B>
where
A: AsyncRead + AsyncWrite + Unpin + 'static,
B: AsyncRead + AsyncWrite + Unpin + 'static,

188
actix-http/src/client/connector.rs
View File

@ -1,5 +1,8 @@
use std::fmt;
use std::future::Future;
use std::marker::PhantomData;
use std::pin::Pin;
use std::task::{Context, Poll};
use std::time::Duration;
use actix_codec::{AsyncRead, AsyncWrite};
@ -12,7 +15,7 @@ use actix_utils::timeout::{TimeoutError, TimeoutService};
use http::Uri;
use super::config::ConnectorConfig;
use super::connection::Connection;
use super::connection::EitherIoConnection;
use super::error::ConnectError;
use super::pool::{ConnectionPool, Protocol};
use super::Connect;
@ -55,7 +58,7 @@ pub struct Connector<T, U> {
_phantom: PhantomData<U>,
}
trait Io: AsyncRead + AsyncWrite + Unpin {}
pub trait Io: AsyncRead + AsyncWrite + Unpin {}
impl<T: AsyncRead + AsyncWrite + Unpin> Io for T {}
impl Connector<(), ()> {
@ -242,8 +245,12 @@ where
/// its combinator chain.
pub fn finish(
self,
) -> impl Service<Connect, Response = impl Connection, Error = ConnectError> + Clone
{
) -> InnerConnector<
impl Service<Connect, Response = (U, Protocol), Error = ConnectError>,
impl Service<Connect, Response = (Box<dyn Io>, Protocol), Error = ConnectError>,
U,
Box<dyn Io>,
> {
let tcp_service = TimeoutService::new(
self.config.timeout,
apply_fn(self.connector.clone(), |msg: Connect, srv| {
@ -259,22 +266,7 @@ where
#[cfg(not(any(feature = "openssl", feature = "rustls")))]
{
use futures_core::future::LocalBoxFuture;
// A dummy service for annotate tls pool's type signature.
type DummyService = Box<
dyn Service<
Connect,
Response = (Box<dyn Io>, Protocol),
Error = ConnectError,
Future = LocalBoxFuture<
'static,
Result<(Box<dyn Io>, Protocol), ConnectError>,
>,
>,
>;
connect_impl::InnerConnector::<_, DummyService, _, Box<dyn Io>> {
InnerConnector {
tcp_pool: ConnectionPool::new(
tcp_service,
self.config.no_disconnect_timeout(),
@ -282,6 +274,7 @@ where
tls_pool: None,
}
}
#[cfg(any(feature = "openssl", feature = "rustls"))]
{
const H2: &[u8] = b"h2";
@ -344,7 +337,7 @@ where
TimeoutError::Timeout => ConnectError::Timeout,
});
connect_impl::InnerConnector {
InnerConnector {
tcp_pool: ConnectionPool::new(
tcp_service,
self.config.no_disconnect_timeout(),
@ -355,99 +348,86 @@ where
}
}
mod connect_impl {
use std::future::Future;
use std::pin::Pin;
use std::task::{Context, Poll};
pub struct InnerConnector<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
tcp_pool: ConnectionPool<S1, Io1>,
tls_pool: Option<ConnectionPool<S2, Io2>>,
}
use super::*;
use crate::client::connection::EitherIoConnection;
pub(crate) struct InnerConnector<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
pub(crate) tcp_pool: ConnectionPool<S1, Io1>,
pub(crate) tls_pool: Option<ConnectionPool<S2, Io2>>,
}
impl<S1, S2, Io1, Io2> Clone for InnerConnector<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
fn clone(&self) -> Self {
InnerConnector {
tcp_pool: self.tcp_pool.clone(),
tls_pool: self.tls_pool.as_ref().cloned(),
}
impl<S1, S2, Io1, Io2> Clone for InnerConnector<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
fn clone(&self) -> Self {
InnerConnector {
tcp_pool: self.tcp_pool.clone(),
tls_pool: self.tls_pool.as_ref().cloned(),
}
}
}
impl<S1, S2, Io1, Io2> Service<Connect> for InnerConnector<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
type Response = EitherIoConnection<Io1, Io2>;
type Error = ConnectError;
type Future = InnerConnectorResponse<S1, S2, Io1, Io2>;
impl<S1, S2, Io1, Io2> Service<Connect> for InnerConnector<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
type Response = EitherIoConnection<Io1, Io2>;
type Error = ConnectError;
type Future = InnerConnectorResponse<S1, S2, Io1, Io2>;
fn poll_ready(&self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.tcp_pool.poll_ready(cx)
}
fn call(&self, req: Connect) -> Self::Future {
match req.uri.scheme_str() {
Some("https") | Some("wss") => match self.tls_pool {
None => InnerConnectorResponse::SslIsNotSupported,
Some(ref pool) => InnerConnectorResponse::Io2(pool.call(req)),
},
_ => InnerConnectorResponse::Io1(self.tcp_pool.call(req)),
}
}
fn poll_ready(&self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
self.tcp_pool.poll_ready(cx)
}
#[pin_project::pin_project(project = InnerConnectorProj)]
pub(crate) enum InnerConnectorResponse<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
Io1(#[pin] <ConnectionPool<S1, Io1> as Service<Connect>>::Future),
Io2(#[pin] <ConnectionPool<S2, Io2> as Service<Connect>>::Future),
SslIsNotSupported,
fn call(&self, req: Connect) -> Self::Future {
match req.uri.scheme_str() {
Some("https") | Some("wss") => match self.tls_pool {
None => InnerConnectorResponse::SslIsNotSupported,
Some(ref pool) => InnerConnectorResponse::Io2(pool.call(req)),
},
_ => InnerConnectorResponse::Io1(self.tcp_pool.call(req)),
}
}
}
impl<S1, S2, Io1, Io2> Future for InnerConnectorResponse<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
type Output = Result<EitherIoConnection<Io1, Io2>, ConnectError>;
#[pin_project::pin_project(project = InnerConnectorProj)]
pub enum InnerConnectorResponse<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
Io1(#[pin] <ConnectionPool<S1, Io1> as Service<Connect>>::Future),
Io2(#[pin] <ConnectionPool<S2, Io2> as Service<Connect>>::Future),
SslIsNotSupported,
}
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
match self.project() {
InnerConnectorProj::Io1(fut) => {
fut.poll(cx).map_ok(EitherIoConnection::A)
}
InnerConnectorProj::Io2(fut) => {
fut.poll(cx).map_ok(EitherIoConnection::B)
}
InnerConnectorProj::SslIsNotSupported => {
Poll::Ready(Err(ConnectError::SslIsNotSupported))
}
impl<S1, S2, Io1, Io2> Future for InnerConnectorResponse<S1, S2, Io1, Io2>
where
S1: Service<Connect, Response = (Io1, Protocol), Error = ConnectError> + 'static,
S2: Service<Connect, Response = (Io2, Protocol), Error = ConnectError> + 'static,
Io1: AsyncRead + AsyncWrite + Unpin + 'static,
Io2: AsyncRead + AsyncWrite + Unpin + 'static,
{
type Output = Result<EitherIoConnection<Io1, Io2>, ConnectError>;
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
match self.project() {
InnerConnectorProj::Io1(fut) => fut.poll(cx).map_ok(EitherIoConnection::A),
InnerConnectorProj::Io2(fut) => fut.poll(cx).map_ok(EitherIoConnection::B),
InnerConnectorProj::SslIsNotSupported => {
Poll::Ready(Err(ConnectError::SslIsNotSupported))
}
}
}

2
actix-http/src/client/pool.rs
View File

@ -45,7 +45,7 @@ impl From<Authority> for Key {
}
/// Connections pool for reuse Io type for certain [`http::uri::Authority`] as key.
pub(crate) struct ConnectionPool<S, Io>
pub struct ConnectionPool<S, Io>
where
Io: AsyncWrite + Unpin + 'static,
{