mirror of
https://github.com/actix/actix-web.git
synced 2024-11-26 11:31:09 +00:00
remove direct dep on pin-project in -http (#2524)
This commit is contained in:
Rob Ede
GitHub
parent
5359fa56c2
commit
2cf27863cb
2 changed files with 158 additions and 123 deletions
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@ -45,7 +45,7 @@ __compress = []
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actix-service = "2.0.0"
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actix-codec = "0.4.1"
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actix-utils = "3.0.0"
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actix-rt = "2.2"
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actix-rt = { version = "2.2", default-features = false }
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ahash = "0.7"
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base64 = "0.13"
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@ -66,7 +66,6 @@ local-channel = "0.1"
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log = "0.4"
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mime = "0.3"
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percent-encoding = "2.1"
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pin-project = "1.0.0"
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pin-project-lite = "0.2"
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rand = "0.8"
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sha-1 = "0.9"
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@ -15,7 +15,7 @@ use bitflags::bitflags;
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use bytes::{Buf, BytesMut};
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use futures_core::ready;
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use log::{error, trace};
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use pin_project::pin_project;
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use pin_project_lite::pin_project;
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use crate::{
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body::{BodySize, BoxBody, MessageBody},
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@ -46,10 +46,16 @@ bitflags! {
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}
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}
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#[pin_project]
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/// Dispatcher for HTTP/1.1 protocol
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pub struct Dispatcher<T, S, B, X, U>
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where
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// there's 2 versions of Dispatcher state because of:
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// https://github.com/taiki-e/pin-project-lite/issues/3
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//
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// tl;dr: pin-project-lite doesn't play well with other attribute macros
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#[cfg(not(test))]
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pin_project! {
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/// Dispatcher for HTTP/1.1 protocol
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pub struct Dispatcher<T, S, B, X, U>
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where
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S: Service<Request>,
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S::Error: Into<Response<BoxBody>>,
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@ -60,17 +66,40 @@ where
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U: Service<(Request, Framed<T, Codec>), Response = ()>,
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U::Error: fmt::Display,
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{
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{
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#[pin]
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inner: DispatcherState<T, S, B, X, U>,
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}
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}
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#[cfg(test)]
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pin_project! {
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/// Dispatcher for HTTP/1.1 protocol
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pub struct Dispatcher<T, S, B, X, U>
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where
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S: Service<Request>,
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S::Error: Into<Response<BoxBody>>,
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B: MessageBody,
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X: Service<Request, Response = Request>,
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X::Error: Into<Response<BoxBody>>,
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U: Service<(Request, Framed<T, Codec>), Response = ()>,
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U::Error: fmt::Display,
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{
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#[pin]
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inner: DispatcherState<T, S, B, X, U>,
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#[cfg(test)]
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// used in tests
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poll_count: u64,
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}
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}
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#[pin_project(project = DispatcherStateProj)]
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enum DispatcherState<T, S, B, X, U>
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where
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pin_project! {
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#[project = DispatcherStateProj]
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enum DispatcherState<T, S, B, X, U>
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where
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S: Service<Request>,
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S::Error: Into<Response<BoxBody>>,
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@ -81,14 +110,16 @@ where
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U: Service<(Request, Framed<T, Codec>), Response = ()>,
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U::Error: fmt::Display,
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{
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Normal(#[pin] InnerDispatcher<T, S, B, X, U>),
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Upgrade(#[pin] U::Future),
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{
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Normal { #[pin] inner: InnerDispatcher<T, S, B, X, U> },
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Upgrade { #[pin] fut: U::Future },
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}
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}
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#[pin_project(project = InnerDispatcherProj)]
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struct InnerDispatcher<T, S, B, X, U>
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where
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pin_project! {
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#[project = InnerDispatcherProj]
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struct InnerDispatcher<T, S, B, X, U>
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where
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S: Service<Request>,
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S::Error: Into<Response<BoxBody>>,
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@ -99,7 +130,7 @@ where
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U: Service<(Request, Framed<T, Codec>), Response = ()>,
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U::Error: fmt::Display,
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{
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{
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flow: Rc<HttpFlow<S, X, U>>,
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flags: Flags,
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peer_addr: Option<net::SocketAddr>,
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@ -119,6 +150,7 @@ where
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read_buf: BytesMut,
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write_buf: BytesMut,
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codec: Codec,
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}
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}
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enum DispatcherMessage {
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@ -127,19 +159,21 @@ enum DispatcherMessage {
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Error(Response<()>),
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}
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#[pin_project(project = StateProj)]
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enum State<S, B, X>
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where
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pin_project! {
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#[project = StateProj]
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enum State<S, B, X>
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where
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S: Service<Request>,
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X: Service<Request, Response = Request>,
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B: MessageBody,
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{
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{
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None,
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ExpectCall(#[pin] X::Future),
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ServiceCall(#[pin] S::Future),
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SendPayload(#[pin] B),
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SendErrorPayload(#[pin] BoxBody),
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ExpectCall { #[pin] fut: X::Future },
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ServiceCall { #[pin] fut: S::Future },
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SendPayload { #[pin] body: B },
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SendErrorPayload { #[pin] body: BoxBody },
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}
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}
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impl<S, B, X> State<S, B, X>
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@ -198,7 +232,8 @@ where
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};
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Dispatcher {
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inner: DispatcherState::Normal(InnerDispatcher {
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inner: DispatcherState::Normal {
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inner: InnerDispatcher {
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flow,
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flags,
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peer_addr,
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@ -216,7 +251,8 @@ where
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read_buf: BytesMut::with_capacity(HW_BUFFER_SIZE),
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write_buf: BytesMut::with_capacity(HW_BUFFER_SIZE),
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codec: Codec::new(config),
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}),
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},
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},
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#[cfg(test)]
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poll_count: 0,
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@ -316,7 +352,7 @@ where
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let size = self.as_mut().send_response_inner(message, &body)?;
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let state = match size {
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BodySize::None | BodySize::Sized(0) => State::None,
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_ => State::SendPayload(body),
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_ => State::SendPayload { body },
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};
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self.project().state.set(state);
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Ok(())
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@ -330,7 +366,7 @@ where
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let size = self.as_mut().send_response_inner(message, &body)?;
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let state = match size {
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BodySize::None | BodySize::Sized(0) => State::None,
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_ => State::SendErrorPayload(body),
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_ => State::SendErrorPayload { body },
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};
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self.project().state.set(state);
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Ok(())
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@ -356,12 +392,12 @@ where
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// Handle `EXPECT: 100-Continue` header
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if req.head().expect() {
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// set InnerDispatcher state and continue loop to poll it.
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let task = this.flow.expect.call(req);
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this.state.set(State::ExpectCall(task));
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let fut = this.flow.expect.call(req);
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this.state.set(State::ExpectCall { fut });
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} else {
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// the same as expect call.
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let task = this.flow.service.call(req);
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this.state.set(State::ServiceCall(task));
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let fut = this.flow.service.call(req);
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this.state.set(State::ServiceCall { fut });
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};
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}
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@ -381,7 +417,7 @@ where
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// all messages are dealt with.
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None => return Ok(PollResponse::DoNothing),
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},
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StateProj::ServiceCall(fut) => match fut.poll(cx) {
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StateProj::ServiceCall { fut } => match fut.poll(cx) {
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// service call resolved. send response.
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Poll::Ready(Ok(res)) => {
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let (res, body) = res.into().replace_body(());
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@ -407,11 +443,11 @@ where
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}
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},
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StateProj::SendPayload(mut stream) => {
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StateProj::SendPayload { mut body } => {
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// keep populate writer buffer until buffer size limit hit,
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// get blocked or finished.
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while this.write_buf.len() < super::payload::MAX_BUFFER_SIZE {
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match stream.as_mut().poll_next(cx) {
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match body.as_mut().poll_next(cx) {
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Poll::Ready(Some(Ok(item))) => {
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this.codec
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.encode(Message::Chunk(Some(item)), this.write_buf)?;
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@ -437,13 +473,13 @@ where
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return Ok(PollResponse::DrainWriteBuf);
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}
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StateProj::SendErrorPayload(mut stream) => {
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StateProj::SendErrorPayload { mut body } => {
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// TODO: de-dupe impl with SendPayload
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// keep populate writer buffer until buffer size limit hit,
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// get blocked or finished.
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while this.write_buf.len() < super::payload::MAX_BUFFER_SIZE {
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match stream.as_mut().poll_next(cx) {
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match body.as_mut().poll_next(cx) {
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Poll::Ready(Some(Ok(item))) => {
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this.codec
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.encode(Message::Chunk(Some(item)), this.write_buf)?;
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@ -469,14 +505,14 @@ where
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return Ok(PollResponse::DrainWriteBuf);
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}
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StateProj::ExpectCall(fut) => match fut.poll(cx) {
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StateProj::ExpectCall { fut } => match fut.poll(cx) {
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// expect resolved. write continue to buffer and set InnerDispatcher state
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// to service call.
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Poll::Ready(Ok(req)) => {
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this.write_buf
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.extend_from_slice(b"HTTP/1.1 100 Continue\r\n\r\n");
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let fut = this.flow.service.call(req);
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this.state.set(State::ServiceCall(fut));
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this.state.set(State::ServiceCall { fut });
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}
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// send expect error as response
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@ -502,25 +538,25 @@ where
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let mut this = self.as_mut().project();
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if req.head().expect() {
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// set dispatcher state so the future is pinned.
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let task = this.flow.expect.call(req);
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this.state.set(State::ExpectCall(task));
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let fut = this.flow.expect.call(req);
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this.state.set(State::ExpectCall { fut });
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} else {
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// the same as above.
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let task = this.flow.service.call(req);
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this.state.set(State::ServiceCall(task));
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let fut = this.flow.service.call(req);
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this.state.set(State::ServiceCall { fut });
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};
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// eagerly poll the future for once(or twice if expect is resolved immediately).
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loop {
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match self.as_mut().project().state.project() {
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StateProj::ExpectCall(fut) => {
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StateProj::ExpectCall { fut } => {
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match fut.poll(cx) {
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// expect is resolved. continue loop and poll the service call branch.
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Poll::Ready(Ok(req)) => {
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self.as_mut().send_continue();
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let mut this = self.as_mut().project();
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let task = this.flow.service.call(req);
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this.state.set(State::ServiceCall(task));
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let fut = this.flow.service.call(req);
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this.state.set(State::ServiceCall { fut });
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continue;
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}
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// future is pending. return Ok(()) to notify that a new state is
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@ -536,7 +572,7 @@ where
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}
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}
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}
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StateProj::ServiceCall(fut) => {
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StateProj::ServiceCall { fut } => {
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// return no matter the service call future's result.
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return match fut.poll(cx) {
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// future is resolved. send response and return a result. On success
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@ -901,7 +937,7 @@ where
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}
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match this.inner.project() {
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DispatcherStateProj::Normal(mut inner) => {
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DispatcherStateProj::Normal { mut inner } => {
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inner.as_mut().poll_keepalive(cx)?;
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if inner.flags.contains(Flags::SHUTDOWN) {
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@ -941,7 +977,7 @@ where
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self.as_mut()
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.project()
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.inner
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.set(DispatcherState::Upgrade(upgrade));
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.set(DispatcherState::Upgrade { fut: upgrade });
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return self.poll(cx);
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}
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};
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@ -993,8 +1029,8 @@ where
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}
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}
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}
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DispatcherStateProj::Upgrade(fut) => fut.poll(cx).map_err(|e| {
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error!("Upgrade handler error: {}", e);
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DispatcherStateProj::Upgrade { fut: upgrade } => upgrade.poll(cx).map_err(|err| {
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error!("Upgrade handler error: {}", err);
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DispatchError::Upgrade
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}),
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}
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@ -1088,7 +1124,7 @@ mod tests {
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Poll::Ready(res) => assert!(res.is_err()),
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}
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if let DispatcherStateProj::Normal(inner) = h1.project().inner.project() {
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if let DispatcherStateProj::Normal { inner } = h1.project().inner.project() {
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assert!(inner.flags.contains(Flags::READ_DISCONNECT));
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assert_eq!(
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&inner.project().io.take().unwrap().write_buf[..26],
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@ -1123,7 +1159,7 @@ mod tests {
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actix_rt::pin!(h1);
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assert!(matches!(&h1.inner, DispatcherState::Normal(_)));
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assert!(matches!(&h1.inner, DispatcherState::Normal { .. }));
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match h1.as_mut().poll(cx) {
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Poll::Pending => panic!("first poll should not be pending"),
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@ -1133,7 +1169,7 @@ mod tests {
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// polls: initial => shutdown
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assert_eq!(h1.poll_count, 2);
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if let DispatcherStateProj::Normal(inner) = h1.project().inner.project() {
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if let DispatcherStateProj::Normal { inner } = h1.project().inner.project() {
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let res = &mut inner.project().io.take().unwrap().write_buf[..];
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stabilize_date_header(res);
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@ -1177,7 +1213,7 @@ mod tests {
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actix_rt::pin!(h1);
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assert!(matches!(&h1.inner, DispatcherState::Normal(_)));
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assert!(matches!(&h1.inner, DispatcherState::Normal { .. }));
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match h1.as_mut().poll(cx) {
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Poll::Pending => panic!("first poll should not be pending"),
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@ -1187,7 +1223,7 @@ mod tests {
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// polls: initial => shutdown
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assert_eq!(h1.poll_count, 1);
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if let DispatcherStateProj::Normal(inner) = h1.project().inner.project() {
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if let DispatcherStateProj::Normal { inner } = h1.project().inner.project() {
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let res = &mut inner.project().io.take().unwrap().write_buf[..];
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stabilize_date_header(res);
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@ -1237,13 +1273,13 @@ mod tests {
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actix_rt::pin!(h1);
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assert!(h1.as_mut().poll(cx).is_pending());
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assert!(matches!(&h1.inner, DispatcherState::Normal(_)));
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assert!(matches!(&h1.inner, DispatcherState::Normal { .. }));
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// polls: manual
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assert_eq!(h1.poll_count, 1);
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eprintln!("poll count: {}", h1.poll_count);
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if let DispatcherState::Normal(ref inner) = h1.inner {
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if let DispatcherState::Normal { ref inner } = h1.inner {
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let io = inner.io.as_ref().unwrap();
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let res = &io.write_buf()[..];
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assert_eq!(
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@ -1258,7 +1294,7 @@ mod tests {
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// polls: manual manual shutdown
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assert_eq!(h1.poll_count, 3);
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if let DispatcherState::Normal(ref inner) = h1.inner {
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if let DispatcherState::Normal { ref inner } = h1.inner {
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let io = inner.io.as_ref().unwrap();
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let mut res = (&io.write_buf()[..]).to_owned();
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stabilize_date_header(&mut res);
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@ -1309,12 +1345,12 @@ mod tests {
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actix_rt::pin!(h1);
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assert!(h1.as_mut().poll(cx).is_ready());
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assert!(matches!(&h1.inner, DispatcherState::Normal(_)));
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assert!(matches!(&h1.inner, DispatcherState::Normal { .. }));
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// polls: manual shutdown
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assert_eq!(h1.poll_count, 2);
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if let DispatcherState::Normal(ref inner) = h1.inner {
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if let DispatcherState::Normal { ref inner } = h1.inner {
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let io = inner.io.as_ref().unwrap();
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let mut res = (&io.write_buf()[..]).to_owned();
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stabilize_date_header(&mut res);
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@ -1386,7 +1422,7 @@ mod tests {
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actix_rt::pin!(h1);
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assert!(h1.as_mut().poll(cx).is_ready());
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assert!(matches!(&h1.inner, DispatcherState::Upgrade(_)));
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assert!(matches!(&h1.inner, DispatcherState::Upgrade { .. }));
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// polls: manual shutdown
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assert_eq!(h1.poll_count, 2);
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