| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/hyper-0.14.26/src/server/conn.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>conn.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../hyper/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../hyper/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| <span id="1076">1076</span> |
| <span id="1077">1077</span> |
| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| </pre><pre class="rust"><code><span class="doccomment">//! Lower-level Server connection API. |
| //! |
| //! The types in this module are to provide a lower-level API based around a |
| //! single connection. Accepting a connection and binding it with a service |
| //! are not handled at this level. This module provides the building blocks to |
| //! customize those things externally. |
| //! |
| //! If you don't have need to manage connections yourself, consider using the |
| //! higher-level [Server](super) API. |
| //! |
| //! ## Example |
| //! A simple example that uses the `Http` struct to talk HTTP over a Tokio TCP stream |
| //! ```no_run |
| //! # #[cfg(all(feature = "http1", feature = "runtime"))] |
| //! # mod rt { |
| //! use http::{Request, Response, StatusCode}; |
| //! use hyper::{server::conn::Http, service::service_fn, Body}; |
| //! use std::{net::SocketAddr, convert::Infallible}; |
| //! use tokio::net::TcpListener; |
| //! |
| //! #[tokio::main] |
| //! async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> { |
| //! let addr: SocketAddr = ([127, 0, 0, 1], 8080).into(); |
| //! |
| //! let mut tcp_listener = TcpListener::bind(addr).await?; |
| //! loop { |
| //! let (tcp_stream, _) = tcp_listener.accept().await?; |
| //! tokio::task::spawn(async move { |
| //! if let Err(http_err) = Http::new() |
| //! .http1_only(true) |
| //! .http1_keep_alive(true) |
| //! .serve_connection(tcp_stream, service_fn(hello)) |
| //! .await { |
| //! eprintln!("Error while serving HTTP connection: {}", http_err); |
| //! } |
| //! }); |
| //! } |
| //! } |
| //! |
| //! async fn hello(_req: Request<Body>) -> Result<Response<Body>, Infallible> { |
| //! Ok(Response::new(Body::from("Hello World!"))) |
| //! } |
| //! # } |
| //! ``` |
| |
| </span><span class="attribute">#[cfg(all( |
| any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>), |
| not(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)) |
| ))] |
| </span><span class="kw">use </span>std::marker::PhantomData; |
| <span class="attribute">#[cfg(all(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>), feature = <span class="string">"runtime"</span>))] |
| </span><span class="kw">use </span>std::time::Duration; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::common::io::Rewind; |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">use </span><span class="kw">crate</span>::error::{Kind, Parse}; |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::upgrade::Upgraded; |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"backports"</span>, feature = <span class="string">"http1"</span>))] |
| </span><span class="kw">pub mod </span>http1; |
| <span class="attribute">#[cfg(all(feature = <span class="string">"backports"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">pub mod </span>http2; |
| |
| <span class="macro">cfg_feature! </span>{ |
| <span class="attribute">#![any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)] |
| |
| </span><span class="kw">use </span>std::error::Error <span class="kw">as </span>StdError; |
| <span class="kw">use </span>std::fmt; |
| |
| <span class="kw">use </span>bytes::Bytes; |
| <span class="kw">use </span>pin_project_lite::pin_project; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite}; |
| <span class="kw">use </span>tracing::trace; |
| |
| <span class="kw">pub use </span><span class="kw">super</span>::server::Connecting; |
| <span class="kw">use </span><span class="kw">crate</span>::body::{Body, HttpBody}; |
| <span class="kw">use </span><span class="kw">crate</span>::common::{task, Future, Pin, Poll, Unpin}; |
| <span class="attribute">#[cfg(not(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">use </span><span class="kw">crate</span>::common::Never; |
| <span class="kw">use </span><span class="kw">crate</span>::common::exec::{ConnStreamExec, Exec}; |
| <span class="kw">use </span><span class="kw">crate</span>::proto; |
| <span class="kw">use </span><span class="kw">crate</span>::service::HttpService; |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">use </span><span class="self">self</span>::upgrades::UpgradeableConnection; |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"tcp"</span>)] |
| </span><span class="kw">pub use </span><span class="kw">super</span>::tcp::{AddrIncoming, AddrStream}; |
| |
| <span class="doccomment">/// A lower-level configuration of the HTTP protocol. |
| /// |
| /// This structure is used to configure options for an HTTP server connection. |
| /// |
| /// If you don't have need to manage connections yourself, consider using the |
| /// higher-level [Server](super) API. |
| </span><span class="attribute">#[derive(Clone, Debug)] |
| #[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg_attr(docsrs, doc(cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))))] |
| #[cfg_attr( |
| feature = <span class="string">"deprecated"</span>, |
| deprecated( |
| note = <span class="string">"This struct will be replaced with `server::conn::http1::Builder` and `server::conn::http2::Builder` in 1.0, enable the \"backports\" feature to use them now." |
| </span>) |
| )] |
| </span><span class="kw">pub struct </span>Http<E = Exec> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) exec: E, |
| h1_half_close: bool, |
| h1_keep_alive: bool, |
| h1_title_case_headers: bool, |
| h1_preserve_header_case: bool, |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"runtime"</span>))] |
| </span>h1_header_read_timeout: <span class="prelude-ty">Option</span><Duration>, |
| h1_writev: <span class="prelude-ty">Option</span><bool>, |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>h2_builder: proto::h2::server::Config, |
| mode: ConnectionMode, |
| max_buf_size: <span class="prelude-ty">Option</span><usize>, |
| pipeline_flush: bool, |
| } |
| |
| <span class="doccomment">/// The internal mode of HTTP protocol which indicates the behavior when a parse error occurs. |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[derive(Clone, Debug, PartialEq)] |
| </span><span class="kw">enum </span>ConnectionMode { |
| <span class="doccomment">/// Always use HTTP/1 and do not upgrade when a parse error occurs. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span>H1Only, |
| <span class="doccomment">/// Always use HTTP/2. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>H2Only, |
| <span class="doccomment">/// Use HTTP/1 and try to upgrade to h2 when a parse error occurs. |
| </span><span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span>Fallback, |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="macro">pin_project! </span>{ |
| <span class="doccomment">/// A future binding a connection with a Service. |
| /// |
| /// Polling this future will drive HTTP forward. |
| </span><span class="attribute">#[must_use = <span class="string">"futures do nothing unless polled"</span>] |
| #[cfg_attr(docsrs, doc(cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))))] |
| </span><span class="kw">pub struct </span>Connection<T, S, E = Exec> |
| <span class="kw">where |
| </span>S: HttpService<Body>, |
| { |
| <span class="kw">pub</span>(<span class="kw">super</span>) conn: <span class="prelude-ty">Option</span><ProtoServer<T, S::ResBody, S, E>>, |
| fallback: Fallback<E>, |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="kw">type </span>Http1Dispatcher<T, B, S> = |
| proto::h1::Dispatcher<proto::h1::dispatch::Server<S, Body>, B, T, proto::ServerTransaction>; |
| |
| <span class="attribute">#[cfg(all(not(feature = <span class="string">"http1"</span>), feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">type </span>Http1Dispatcher<T, B, S> = (Never, PhantomData<(T, Box<Pin<B>>, Box<Pin<S>>)>); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="kw">type </span>Http2Server<T, B, S, E> = proto::h2::Server<Rewind<T>, S, B, E>; |
| |
| <span class="attribute">#[cfg(all(not(feature = <span class="string">"http2"</span>), feature = <span class="string">"http1"</span>))] |
| </span><span class="kw">type </span>Http2Server<T, B, S, E> = ( |
| Never, |
| PhantomData<(T, Box<Pin<S>>, Box<Pin<B>>, Box<Pin<E>>)>, |
| ); |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="macro">pin_project! </span>{ |
| <span class="attribute">#[project = ProtoServerProj] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">enum </span>ProtoServer<T, B, S, E = Exec> |
| <span class="kw">where |
| </span>S: HttpService<Body>, |
| B: HttpBody, |
| { |
| H1 { |
| <span class="attribute">#[pin] |
| </span>h1: Http1Dispatcher<T, B, S>, |
| }, |
| H2 { |
| <span class="attribute">#[pin] |
| </span>h2: Http2Server<T, B, S, E>, |
| }, |
| } |
| } |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[derive(Clone, Debug)] |
| </span><span class="kw">enum </span>Fallback<E> { |
| ToHttp2(proto::h2::server::Config, E), |
| Http1Only, |
| } |
| |
| <span class="attribute">#[cfg(all( |
| any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>), |
| not(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)) |
| ))] |
| </span><span class="kw">type </span>Fallback<E> = PhantomData<E>; |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><E> Fallback<E> { |
| <span class="kw">fn </span>to_h2(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| Fallback::ToHttp2(..) => <span class="bool-val">true</span>, |
| Fallback::Http1Only => <span class="bool-val">false</span>, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><E> Unpin <span class="kw">for </span>Fallback<E> {} |
| |
| <span class="doccomment">/// Deconstructed parts of a `Connection`. |
| /// |
| /// This allows taking apart a `Connection` at a later time, in order to |
| /// reclaim the IO object, and additional related pieces. |
| </span><span class="attribute">#[derive(Debug)] |
| #[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg_attr(docsrs, doc(cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))))] |
| #[cfg_attr( |
| feature = <span class="string">"deprecated"</span>, |
| deprecated( |
| note = <span class="string">"This struct will be replaced with `server::conn::http1::Parts` in 1.0, enable the \"backports\" feature to use them now." |
| </span>) |
| )] |
| </span><span class="kw">pub struct </span>Parts<T, S> { |
| <span class="doccomment">/// The original IO object used in the handshake. |
| </span><span class="kw">pub </span>io: T, |
| <span class="doccomment">/// A buffer of bytes that have been read but not processed as HTTP. |
| /// |
| /// If the client sent additional bytes after its last request, and |
| /// this connection "ended" with an upgrade, the read buffer will contain |
| /// those bytes. |
| /// |
| /// You will want to check for any existing bytes if you plan to continue |
| /// communicating on the IO object. |
| </span><span class="kw">pub </span>read_buf: Bytes, |
| <span class="doccomment">/// The `Service` used to serve this connection. |
| </span><span class="kw">pub </span>service: S, |
| _inner: (), |
| } |
| |
| <span class="comment">// ===== impl Http ===== |
| |
| </span><span class="attribute">#[cfg_attr(feature = <span class="string">"deprecated"</span>, allow(deprecated))] |
| #[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl </span>Http { |
| <span class="doccomment">/// Creates a new instance of the HTTP protocol, ready to spawn a server or |
| /// start accepting connections. |
| </span><span class="kw">pub fn </span>new() -> Http { |
| Http { |
| exec: Exec::Default, |
| h1_half_close: <span class="bool-val">false</span>, |
| h1_keep_alive: <span class="bool-val">true</span>, |
| h1_title_case_headers: <span class="bool-val">false</span>, |
| h1_preserve_header_case: <span class="bool-val">false</span>, |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"runtime"</span>))] |
| </span>h1_header_read_timeout: <span class="prelude-val">None</span>, |
| h1_writev: <span class="prelude-val">None</span>, |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>h2_builder: Default::default(), |
| mode: ConnectionMode::default(), |
| max_buf_size: <span class="prelude-val">None</span>, |
| pipeline_flush: <span class="bool-val">false</span>, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg_attr(feature = <span class="string">"deprecated"</span>, allow(deprecated))] |
| #[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><E> Http<E> { |
| <span class="doccomment">/// Sets whether HTTP1 is required. |
| /// |
| /// Default is false |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>http1_only(<span class="kw-2">&mut </span><span class="self">self</span>, val: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="kw">if </span>val { |
| <span class="self">self</span>.mode = ConnectionMode::H1Only; |
| } <span class="kw">else </span>{ |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>{ |
| <span class="self">self</span>.mode = ConnectionMode::Fallback; |
| } |
| } |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set whether HTTP/1 connections should support half-closures. |
| /// |
| /// Clients can chose to shutdown their write-side while waiting |
| /// for the server to respond. Setting this to `true` will |
| /// prevent closing the connection immediately if `read` |
| /// detects an EOF in the middle of a request. |
| /// |
| /// Default is `false`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>http1_half_close(<span class="kw-2">&mut </span><span class="self">self</span>, val: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h1_half_close = val; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Enables or disables HTTP/1 keep-alive. |
| /// |
| /// Default is true. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>http1_keep_alive(<span class="kw-2">&mut </span><span class="self">self</span>, val: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h1_keep_alive = val; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set whether HTTP/1 connections will write header names as title case at |
| /// the socket level. |
| /// |
| /// Note that this setting does not affect HTTP/2. |
| /// |
| /// Default is false. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>http1_title_case_headers(<span class="kw-2">&mut </span><span class="self">self</span>, enabled: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h1_title_case_headers = enabled; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set whether to support preserving original header cases. |
| /// |
| /// Currently, this will record the original cases received, and store them |
| /// in a private extension on the `Request`. It will also look for and use |
| /// such an extension in any provided `Response`. |
| /// |
| /// Since the relevant extension is still private, there is no way to |
| /// interact with the original cases. The only effect this can have now is |
| /// to forward the cases in a proxy-like fashion. |
| /// |
| /// Note that this setting does not affect HTTP/2. |
| /// |
| /// Default is false. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>http1_preserve_header_case(<span class="kw-2">&mut </span><span class="self">self</span>, enabled: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h1_preserve_header_case = enabled; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set a timeout for reading client request headers. If a client does not |
| /// transmit the entire header within this time, the connection is closed. |
| /// |
| /// Default is None. |
| </span><span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"runtime"</span>))] |
| #[cfg_attr(docsrs, doc(cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"runtime"</span>))))] |
| </span><span class="kw">pub fn </span>http1_header_read_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, read_timeout: Duration) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h1_header_read_timeout = <span class="prelude-val">Some</span>(read_timeout); |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set whether HTTP/1 connections should try to use vectored writes, |
| /// or always flatten into a single buffer. |
| /// |
| /// Note that setting this to false may mean more copies of body data, |
| /// but may also improve performance when an IO transport doesn't |
| /// support vectored writes well, such as most TLS implementations. |
| /// |
| /// Setting this to true will force hyper to use queued strategy |
| /// which may eliminate unnecessary cloning on some TLS backends |
| /// |
| /// Default is `auto`. In this mode hyper will try to guess which |
| /// mode to use |
| </span><span class="attribute">#[inline] |
| #[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>http1_writev(<span class="kw-2">&mut </span><span class="self">self</span>, val: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h1_writev = <span class="prelude-val">Some</span>(val); |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets whether HTTP2 is required. |
| /// |
| /// Default is false |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_only(<span class="kw-2">&mut </span><span class="self">self</span>, val: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="kw">if </span>val { |
| <span class="self">self</span>.mode = ConnectionMode::H2Only; |
| } <span class="kw">else </span>{ |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span>{ |
| <span class="self">self</span>.mode = ConnectionMode::Fallback; |
| } |
| } |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Configures the maximum number of pending reset streams allowed before a GOAWAY will be sent. |
| /// |
| /// This will default to the default value set by the [`h2` crate](https://crates.io/crates/h2). |
| /// As of v0.3.17, it is 20. |
| /// |
| /// See <https://github.com/hyperium/hyper/issues/2877> for more information. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_max_pending_accept_reset_streams( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| max: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><usize>>, |
| ) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h2_builder.max_pending_accept_reset_streams = max.into(); |
| |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets the [`SETTINGS_INITIAL_WINDOW_SIZE`][spec] option for HTTP2 |
| /// stream-level flow control. |
| /// |
| /// Passing `None` will do nothing. |
| /// |
| /// If not set, hyper will use a default. |
| /// |
| /// [spec]: https://http2.github.io/http2-spec/#SETTINGS_INITIAL_WINDOW_SIZE |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_initial_stream_window_size(<span class="kw-2">&mut </span><span class="self">self</span>, sz: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><u32>>) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(sz) = sz.into() { |
| <span class="self">self</span>.h2_builder.adaptive_window = <span class="bool-val">false</span>; |
| <span class="self">self</span>.h2_builder.initial_stream_window_size = sz; |
| } |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets the max connection-level flow control for HTTP2. |
| /// |
| /// Passing `None` will do nothing. |
| /// |
| /// If not set, hyper will use a default. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_initial_connection_window_size( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| sz: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><u32>>, |
| ) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(sz) = sz.into() { |
| <span class="self">self</span>.h2_builder.adaptive_window = <span class="bool-val">false</span>; |
| <span class="self">self</span>.h2_builder.initial_conn_window_size = sz; |
| } |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets whether to use an adaptive flow control. |
| /// |
| /// Enabling this will override the limits set in |
| /// `http2_initial_stream_window_size` and |
| /// `http2_initial_connection_window_size`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_adaptive_window(<span class="kw-2">&mut </span><span class="self">self</span>, enabled: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="kw">use </span>proto::h2::SPEC_WINDOW_SIZE; |
| |
| <span class="self">self</span>.h2_builder.adaptive_window = enabled; |
| <span class="kw">if </span>enabled { |
| <span class="self">self</span>.h2_builder.initial_conn_window_size = SPEC_WINDOW_SIZE; |
| <span class="self">self</span>.h2_builder.initial_stream_window_size = SPEC_WINDOW_SIZE; |
| } |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets the maximum frame size to use for HTTP2. |
| /// |
| /// Passing `None` will do nothing. |
| /// |
| /// If not set, hyper will use a default. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_max_frame_size(<span class="kw-2">&mut </span><span class="self">self</span>, sz: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><u32>>) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(sz) = sz.into() { |
| <span class="self">self</span>.h2_builder.max_frame_size = sz; |
| } |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets the [`SETTINGS_MAX_CONCURRENT_STREAMS`][spec] option for HTTP2 |
| /// connections. |
| /// |
| /// Default is no limit (`std::u32::MAX`). Passing `None` will do nothing. |
| /// |
| /// [spec]: https://http2.github.io/http2-spec/#SETTINGS_MAX_CONCURRENT_STREAMS |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_max_concurrent_streams(<span class="kw-2">&mut </span><span class="self">self</span>, max: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><u32>>) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h2_builder.max_concurrent_streams = max.into(); |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets an interval for HTTP2 Ping frames should be sent to keep a |
| /// connection alive. |
| /// |
| /// Pass `None` to disable HTTP2 keep-alive. |
| /// |
| /// Default is currently disabled. |
| /// |
| /// # Cargo Feature |
| /// |
| /// Requires the `runtime` cargo feature to be enabled. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"runtime"</span>)] |
| #[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_keep_alive_interval( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| interval: <span class="kw">impl </span>Into<<span class="prelude-ty">Option</span><Duration>>, |
| ) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h2_builder.keep_alive_interval = interval.into(); |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets a timeout for receiving an acknowledgement of the keep-alive ping. |
| /// |
| /// If the ping is not acknowledged within the timeout, the connection will |
| /// be closed. Does nothing if `http2_keep_alive_interval` is disabled. |
| /// |
| /// Default is 20 seconds. |
| /// |
| /// # Cargo Feature |
| /// |
| /// Requires the `runtime` cargo feature to be enabled. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"runtime"</span>)] |
| #[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_keep_alive_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: Duration) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h2_builder.keep_alive_timeout = timeout; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set the maximum write buffer size for each HTTP/2 stream. |
| /// |
| /// Default is currently ~400KB, but may change. |
| /// |
| /// # Panics |
| /// |
| /// The value must be no larger than `u32::MAX`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_max_send_buf_size(<span class="kw-2">&mut </span><span class="self">self</span>, max: usize) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="macro">assert!</span>(max <= std::u32::MAX <span class="kw">as </span>usize); |
| <span class="self">self</span>.h2_builder.max_send_buffer_size = max; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Enables the [extended CONNECT protocol]. |
| /// |
| /// [extended CONNECT protocol]: https://datatracker.ietf.org/doc/html/rfc8441#section-4 |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="kw">pub fn </span>http2_enable_connect_protocol(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h2_builder.enable_connect_protocol = <span class="bool-val">true</span>; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Sets the max size of received header frames. |
| /// |
| /// Default is currently ~16MB, but may change. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">pub fn </span>http2_max_header_list_size(<span class="kw-2">&mut </span><span class="self">self</span>, max: u32) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.h2_builder.max_header_list_size = max; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set the maximum buffer size for the connection. |
| /// |
| /// Default is ~400kb. |
| /// |
| /// # Panics |
| /// |
| /// The minimum value allowed is 8192. This method panics if the passed `max` is less than the minimum. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"http1"</span>)))] |
| </span><span class="kw">pub fn </span>max_buf_size(<span class="kw-2">&mut </span><span class="self">self</span>, max: usize) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="macro">assert!</span>( |
| max >= proto::h1::MINIMUM_MAX_BUFFER_SIZE, |
| <span class="string">"the max_buf_size cannot be smaller than the minimum that h1 specifies." |
| </span>); |
| <span class="self">self</span>.max_buf_size = <span class="prelude-val">Some</span>(max); |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Aggregates flushes to better support pipelined responses. |
| /// |
| /// Experimental, may have bugs. |
| /// |
| /// Default is false. |
| </span><span class="kw">pub fn </span>pipeline_flush(<span class="kw-2">&mut </span><span class="self">self</span>, enabled: bool) -> <span class="kw-2">&mut </span><span class="self">Self </span>{ |
| <span class="self">self</span>.pipeline_flush = enabled; |
| <span class="self">self |
| </span>} |
| |
| <span class="doccomment">/// Set the executor used to spawn background tasks. |
| /// |
| /// Default uses implicit default (like `tokio::spawn`). |
| </span><span class="kw">pub fn </span>with_executor<E2>(<span class="self">self</span>, exec: E2) -> Http<E2> { |
| Http { |
| exec, |
| h1_half_close: <span class="self">self</span>.h1_half_close, |
| h1_keep_alive: <span class="self">self</span>.h1_keep_alive, |
| h1_title_case_headers: <span class="self">self</span>.h1_title_case_headers, |
| h1_preserve_header_case: <span class="self">self</span>.h1_preserve_header_case, |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"runtime"</span>))] |
| </span>h1_header_read_timeout: <span class="self">self</span>.h1_header_read_timeout, |
| h1_writev: <span class="self">self</span>.h1_writev, |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>h2_builder: <span class="self">self</span>.h2_builder, |
| mode: <span class="self">self</span>.mode, |
| max_buf_size: <span class="self">self</span>.max_buf_size, |
| pipeline_flush: <span class="self">self</span>.pipeline_flush, |
| } |
| } |
| |
| <span class="doccomment">/// Bind a connection together with a [`Service`](crate::service::Service). |
| /// |
| /// This returns a Future that must be polled in order for HTTP to be |
| /// driven on the connection. |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// # use hyper::{Body, Request, Response}; |
| /// # use hyper::service::Service; |
| /// # use hyper::server::conn::Http; |
| /// # use tokio::io::{AsyncRead, AsyncWrite}; |
| /// # async fn run<I, S>(some_io: I, some_service: S) |
| /// # where |
| /// # I: AsyncRead + AsyncWrite + Unpin + Send + 'static, |
| /// # S: Service<hyper::Request<Body>, Response=hyper::Response<Body>> + Send + 'static, |
| /// # S::Error: Into<Box<dyn std::error::Error + Send + Sync>>, |
| /// # S::Future: Send, |
| /// # { |
| /// let http = Http::new(); |
| /// let conn = http.serve_connection(some_io, some_service); |
| /// |
| /// if let Err(e) = conn.await { |
| /// eprintln!("server connection error: {}", e); |
| /// } |
| /// # } |
| /// # fn main() {} |
| /// ``` |
| </span><span class="kw">pub fn </span>serve_connection<S, I, Bd>(<span class="kw-2">&</span><span class="self">self</span>, io: I, service: S) -> Connection<I, S, E> |
| <span class="kw">where |
| </span>S: HttpService<Body, ResBody = Bd>, |
| S::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| Bd: HttpBody + <span class="lifetime">'static</span>, |
| Bd::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| I: AsyncRead + AsyncWrite + Unpin, |
| E: ConnStreamExec<S::Future, Bd>, |
| { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="macro">macro_rules! </span>h1 { |
| () => {{ |
| <span class="kw">let </span><span class="kw-2">mut </span>conn = proto::Conn::new(io); |
| <span class="kw">if </span>!<span class="self">self</span>.h1_keep_alive { |
| conn.disable_keep_alive(); |
| } |
| <span class="kw">if </span><span class="self">self</span>.h1_half_close { |
| conn.set_allow_half_close(); |
| } |
| <span class="kw">if </span><span class="self">self</span>.h1_title_case_headers { |
| conn.set_title_case_headers(); |
| } |
| <span class="kw">if </span><span class="self">self</span>.h1_preserve_header_case { |
| conn.set_preserve_header_case(); |
| } |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"runtime"</span>))] |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(header_read_timeout) = <span class="self">self</span>.h1_header_read_timeout { |
| conn.set_http1_header_read_timeout(header_read_timeout); |
| } |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(writev) = <span class="self">self</span>.h1_writev { |
| <span class="kw">if </span>writev { |
| conn.set_write_strategy_queue(); |
| } <span class="kw">else </span>{ |
| conn.set_write_strategy_flatten(); |
| } |
| } |
| conn.set_flush_pipeline(<span class="self">self</span>.pipeline_flush); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(max) = <span class="self">self</span>.max_buf_size { |
| conn.set_max_buf_size(max); |
| } |
| <span class="kw">let </span>sd = proto::h1::dispatch::Server::new(service); |
| ProtoServer::H1 { |
| h1: proto::h1::Dispatcher::new(sd, conn), |
| } |
| }}; |
| } |
| |
| <span class="kw">let </span>proto = <span class="kw">match </span><span class="self">self</span>.mode { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg(not(feature = <span class="string">"http2"</span>))] |
| </span>ConnectionMode::H1Only => <span class="macro">h1!</span>(), |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| #[cfg(feature = <span class="string">"http1"</span>)] |
| </span>ConnectionMode::H1Only | ConnectionMode::Fallback => <span class="macro">h1!</span>(), |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>ConnectionMode::H2Only => { |
| <span class="kw">let </span>rewind_io = Rewind::new(io); |
| <span class="kw">let </span>h2 = |
| proto::h2::Server::new(rewind_io, service, <span class="kw-2">&</span><span class="self">self</span>.h2_builder, <span class="self">self</span>.exec.clone()); |
| ProtoServer::H2 { h2 } |
| } |
| }; |
| |
| Connection { |
| conn: <span class="prelude-val">Some</span>(proto), |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span>fallback: <span class="kw">if </span><span class="self">self</span>.mode == ConnectionMode::Fallback { |
| Fallback::ToHttp2(<span class="self">self</span>.h2_builder.clone(), <span class="self">self</span>.exec.clone()) |
| } <span class="kw">else </span>{ |
| Fallback::Http1Only |
| }, |
| <span class="attribute">#[cfg(not(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)))] |
| </span>fallback: PhantomData, |
| } |
| } |
| } |
| |
| <span class="comment">// ===== impl Connection ===== |
| |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><I, B, S, E> Connection<I, S, E> |
| <span class="kw">where |
| </span>S: HttpService<Body, ResBody = B>, |
| S::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| I: AsyncRead + AsyncWrite + Unpin, |
| B: HttpBody + <span class="lifetime">'static</span>, |
| B::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| E: ConnStreamExec<S::Future, B>, |
| { |
| <span class="doccomment">/// Start a graceful shutdown process for this connection. |
| /// |
| /// This `Connection` should continue to be polled until shutdown |
| /// can finish. |
| /// |
| /// # Note |
| /// |
| /// This should only be called while the `Connection` future is still |
| /// pending. If called after `Connection::poll` has resolved, this does |
| /// nothing. |
| </span><span class="kw">pub fn </span>graceful_shutdown(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>) { |
| <span class="kw">match </span><span class="self">self</span>.conn { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="prelude-val">Some</span>(ProtoServer::H1 { <span class="kw-2">ref mut </span>h1, .. }) => { |
| h1.disable_keep_alive(); |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="prelude-val">Some</span>(ProtoServer::H2 { <span class="kw-2">ref mut </span>h2 }) => { |
| h2.graceful_shutdown(); |
| } |
| <span class="prelude-val">None </span>=> (), |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http1"</span>))] |
| </span><span class="prelude-val">Some</span>(ProtoServer::H1 { <span class="kw-2">ref mut </span>h1, .. }) => <span class="kw">match </span>h1.<span class="number">0 </span>{}, |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http2"</span>))] |
| </span><span class="prelude-val">Some</span>(ProtoServer::H2 { <span class="kw-2">ref mut </span>h2 }) => <span class="kw">match </span>h2.<span class="number">0 </span>{}, |
| } |
| } |
| |
| <span class="doccomment">/// Return the inner IO object, and additional information. |
| /// |
| /// If the IO object has been "rewound" the io will not contain those bytes rewound. |
| /// This should only be called after `poll_without_shutdown` signals |
| /// that the connection is "done". Otherwise, it may not have finished |
| /// flushing all necessary HTTP bytes. |
| /// |
| /// # Panics |
| /// This method will panic if this connection is using an h2 protocol. |
| </span><span class="attribute">#[cfg_attr(feature = <span class="string">"deprecated"</span>, allow(deprecated))] |
| </span><span class="kw">pub fn </span>into_parts(<span class="self">self</span>) -> Parts<I, S> { |
| <span class="self">self</span>.try_into_parts() |
| .unwrap_or_else(|| <span class="macro">panic!</span>(<span class="string">"h2 cannot into_inner"</span>)) |
| } |
| |
| <span class="doccomment">/// Return the inner IO object, and additional information, if available. |
| /// |
| /// This method will return a `None` if this connection is using an h2 protocol. |
| </span><span class="attribute">#[cfg_attr(feature = <span class="string">"deprecated"</span>, allow(deprecated))] |
| </span><span class="kw">pub fn </span>try_into_parts(<span class="self">self</span>) -> <span class="prelude-ty">Option</span><Parts<I, S>> { |
| <span class="kw">match </span><span class="self">self</span>.conn.unwrap() { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span>ProtoServer::H1 { h1, .. } => { |
| <span class="kw">let </span>(io, read_buf, dispatch) = h1.into_inner(); |
| <span class="prelude-val">Some</span>(Parts { |
| io, |
| read_buf, |
| service: dispatch.into_service(), |
| _inner: (), |
| }) |
| } |
| ProtoServer::H2 { .. } => <span class="prelude-val">None</span>, |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http1"</span>))] |
| </span>ProtoServer::H1 { h1, .. } => <span class="kw">match </span>h1.<span class="number">0 </span>{}, |
| } |
| } |
| |
| <span class="doccomment">/// Poll the connection for completion, but without calling `shutdown` |
| /// on the underlying IO. |
| /// |
| /// This is useful to allow running a connection while doing an HTTP |
| /// upgrade. Once the upgrade is completed, the connection would be "done", |
| /// but it is not desired to actually shutdown the IO object. Instead you |
| /// would take it back using `into_parts`. |
| </span><span class="kw">pub fn </span>poll_without_shutdown(<span class="kw-2">&mut </span><span class="self">self</span>, cx: <span class="kw-2">&mut </span>task::Context<<span class="lifetime">'_</span>>) -> Poll<<span class="kw">crate</span>::Result<()>> { |
| <span class="kw">loop </span>{ |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self</span>.conn.as_mut().unwrap() { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span>ProtoServer::H1 { <span class="kw-2">ref mut </span>h1, .. } => <span class="kw">match </span><span class="macro">ready!</span>(h1.poll_without_shutdown(cx)) { |
| <span class="prelude-val">Ok</span>(()) => <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Ok</span>(())), |
| <span class="prelude-val">Err</span>(e) => { |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="kw">match </span><span class="kw-2">*</span>e.kind() { |
| Kind::Parse(Parse::VersionH2) <span class="kw">if </span><span class="self">self</span>.fallback.to_h2() => { |
| <span class="self">self</span>.upgrade_h2(); |
| <span class="kw">continue</span>; |
| } |
| <span class="kw">_ </span>=> (), |
| } |
| |
| <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Err</span>(e)); |
| } |
| }, |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>ProtoServer::H2 { <span class="kw-2">ref mut </span>h2 } => <span class="kw">return </span>Pin::new(h2).poll(cx).map_ok(|<span class="kw">_</span>| ()), |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http1"</span>))] |
| </span>ProtoServer::H1 { <span class="kw-2">ref mut </span>h1, .. } => <span class="kw">match </span>h1.<span class="number">0 </span>{}, |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http2"</span>))] |
| </span>ProtoServer::H2 { <span class="kw-2">ref mut </span>h2 } => <span class="kw">match </span>h2.<span class="number">0 </span>{}, |
| }; |
| } |
| } |
| |
| <span class="doccomment">/// Prevent shutdown of the underlying IO object at the end of service the request, |
| /// instead run `into_parts`. This is a convenience wrapper over `poll_without_shutdown`. |
| /// |
| /// # Error |
| /// |
| /// This errors if the underlying connection protocol is not HTTP/1. |
| </span><span class="attribute">#[cfg_attr(feature = <span class="string">"deprecated"</span>, allow(deprecated))] |
| </span><span class="kw">pub fn </span>without_shutdown(<span class="self">self</span>) -> <span class="kw">impl </span>Future<Output = <span class="kw">crate</span>::Result<Parts<I, S>>> { |
| <span class="kw">let </span><span class="kw-2">mut </span>conn = <span class="prelude-val">Some</span>(<span class="self">self</span>); |
| futures_util::future::poll_fn(<span class="kw">move </span>|cx| { |
| <span class="macro">ready!</span>(conn.as_mut().unwrap().poll_without_shutdown(cx))<span class="question-mark">?</span>; |
| Poll::Ready( |
| conn.take() |
| .unwrap() |
| .try_into_parts() |
| .ok_or_else(<span class="kw">crate</span>::Error::new_without_shutdown_not_h1), |
| ) |
| }) |
| } |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">fn </span>upgrade_h2(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="macro">trace!</span>(<span class="string">"Trying to upgrade connection to h2"</span>); |
| <span class="kw">let </span>conn = <span class="self">self</span>.conn.take(); |
| |
| <span class="kw">let </span>(io, read_buf, dispatch) = <span class="kw">match </span>conn.unwrap() { |
| ProtoServer::H1 { h1, .. } => h1.into_inner(), |
| ProtoServer::H2 { .. } => { |
| <span class="macro">panic!</span>(<span class="string">"h2 cannot into_inner"</span>); |
| } |
| }; |
| <span class="kw">let </span><span class="kw-2">mut </span>rewind_io = Rewind::new(io); |
| rewind_io.rewind(read_buf); |
| <span class="kw">let </span>(builder, exec) = <span class="kw">match </span><span class="self">self</span>.fallback { |
| Fallback::ToHttp2(<span class="kw-2">ref </span>builder, <span class="kw-2">ref </span>exec) => (builder, exec), |
| Fallback::Http1Only => <span class="macro">unreachable!</span>(<span class="string">"upgrade_h2 with Fallback::Http1Only"</span>), |
| }; |
| <span class="kw">let </span>h2 = proto::h2::Server::new(rewind_io, dispatch.into_service(), builder, exec.clone()); |
| |
| <span class="macro">debug_assert!</span>(<span class="self">self</span>.conn.is_none()); |
| <span class="self">self</span>.conn = <span class="prelude-val">Some</span>(ProtoServer::H2 { h2 }); |
| } |
| |
| <span class="doccomment">/// Enable this connection to support higher-level HTTP upgrades. |
| /// |
| /// See [the `upgrade` module](crate::upgrade) for more. |
| </span><span class="kw">pub fn </span>with_upgrades(<span class="self">self</span>) -> UpgradeableConnection<I, S, E> |
| <span class="kw">where |
| </span>I: Send, |
| { |
| UpgradeableConnection { inner: <span class="self">self </span>} |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><I, B, S, E> Future <span class="kw">for </span>Connection<I, S, E> |
| <span class="kw">where |
| </span>S: HttpService<Body, ResBody = B>, |
| S::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| I: AsyncRead + AsyncWrite + Unpin, |
| B: HttpBody + <span class="lifetime">'static</span>, |
| B::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| E: ConnStreamExec<S::Future, B>, |
| { |
| <span class="kw">type </span>Output = <span class="kw">crate</span>::Result<()>; |
| |
| <span class="kw">fn </span>poll(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>task::Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| <span class="kw">loop </span>{ |
| <span class="kw">match </span><span class="macro">ready!</span>(Pin::new(<span class="self">self</span>.conn.as_mut().unwrap()).poll(cx)) { |
| <span class="prelude-val">Ok</span>(done) => { |
| <span class="kw">match </span>done { |
| proto::Dispatched::Shutdown => {} |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span>proto::Dispatched::Upgrade(pending) => { |
| <span class="comment">// With no `Send` bound on `I`, we can't try to do |
| // upgrades here. In case a user was trying to use |
| // `Body::on_upgrade` with this API, send a special |
| // error letting them know about that. |
| </span>pending.manual(); |
| } |
| }; |
| <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Ok</span>(())); |
| } |
| <span class="prelude-val">Err</span>(e) => { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="kw">match </span><span class="kw-2">*</span>e.kind() { |
| Kind::Parse(Parse::VersionH2) <span class="kw">if </span><span class="self">self</span>.fallback.to_h2() => { |
| <span class="self">self</span>.upgrade_h2(); |
| <span class="kw">continue</span>; |
| } |
| <span class="kw">_ </span>=> (), |
| } |
| |
| <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Err</span>(e)); |
| } |
| } |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><I, S> fmt::Debug <span class="kw">for </span>Connection<I, S> |
| <span class="kw">where |
| </span>S: HttpService<Body>, |
| { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| f.debug_struct(<span class="string">"Connection"</span>).finish() |
| } |
| } |
| |
| <span class="comment">// ===== impl ConnectionMode ===== |
| |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl </span>Default <span class="kw">for </span>ConnectionMode { |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">fn </span>default() -> ConnectionMode { |
| ConnectionMode::Fallback |
| } |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http1"</span>, not(feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">fn </span>default() -> ConnectionMode { |
| ConnectionMode::H1Only |
| } |
| |
| <span class="attribute">#[cfg(all(not(feature = <span class="string">"http1"</span>), feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">fn </span>default() -> ConnectionMode { |
| ConnectionMode::H2Only |
| } |
| } |
| |
| <span class="comment">// ===== impl ProtoServer ===== |
| |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">impl</span><T, B, S, E> Future <span class="kw">for </span>ProtoServer<T, B, S, E> |
| <span class="kw">where |
| </span>T: AsyncRead + AsyncWrite + Unpin, |
| S: HttpService<Body, ResBody = B>, |
| S::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| B: HttpBody + <span class="lifetime">'static</span>, |
| B::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| E: ConnStreamExec<S::Future, B>, |
| { |
| <span class="kw">type </span>Output = <span class="kw">crate</span>::Result<proto::Dispatched>; |
| |
| <span class="kw">fn </span>poll(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>task::Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| <span class="kw">match </span><span class="self">self</span>.project() { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span>ProtoServerProj::H1 { h1, .. } => h1.poll(cx), |
| <span class="attribute">#[cfg(feature = <span class="string">"http2"</span>)] |
| </span>ProtoServerProj::H2 { h2 } => h2.poll(cx), |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http1"</span>))] |
| </span>ProtoServerProj::H1 { h1, .. } => <span class="kw">match </span>h1.<span class="number">0 </span>{}, |
| <span class="attribute">#[cfg(not(feature = <span class="string">"http2"</span>))] |
| </span>ProtoServerProj::H2 { h2 } => <span class="kw">match </span>h2.<span class="number">0 </span>{}, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">mod </span>upgrades { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="comment">// A future binding a connection with a Service with Upgrade support. |
| // |
| // This type is unnameable outside the crate, and so basically just an |
| // `impl Future`, without requiring Rust 1.26. |
| </span><span class="attribute">#[must_use = <span class="string">"futures do nothing unless polled"</span>] |
| #[allow(missing_debug_implementations)] |
| </span><span class="kw">pub struct </span>UpgradeableConnection<T, S, E> |
| <span class="kw">where |
| </span>S: HttpService<Body>, |
| { |
| <span class="kw">pub</span>(<span class="kw">super</span>) inner: Connection<T, S, E>, |
| } |
| |
| <span class="kw">impl</span><I, B, S, E> UpgradeableConnection<I, S, E> |
| <span class="kw">where |
| </span>S: HttpService<Body, ResBody = B>, |
| S::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| I: AsyncRead + AsyncWrite + Unpin, |
| B: HttpBody + <span class="lifetime">'static</span>, |
| B::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| E: ConnStreamExec<S::Future, B>, |
| { |
| <span class="doccomment">/// Start a graceful shutdown process for this connection. |
| /// |
| /// This `Connection` should continue to be polled until shutdown |
| /// can finish. |
| </span><span class="kw">pub fn </span>graceful_shutdown(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>) { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).graceful_shutdown() |
| } |
| } |
| |
| <span class="kw">impl</span><I, B, S, E> Future <span class="kw">for </span>UpgradeableConnection<I, S, E> |
| <span class="kw">where |
| </span>S: HttpService<Body, ResBody = B>, |
| S::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| I: AsyncRead + AsyncWrite + Unpin + Send + <span class="lifetime">'static</span>, |
| B: HttpBody + <span class="lifetime">'static</span>, |
| B::Error: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>>, |
| E: ConnStreamExec<S::Future, B>, |
| { |
| <span class="kw">type </span>Output = <span class="kw">crate</span>::Result<()>; |
| |
| <span class="kw">fn </span>poll(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>task::Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| <span class="kw">loop </span>{ |
| <span class="kw">match </span><span class="macro">ready!</span>(Pin::new(<span class="self">self</span>.inner.conn.as_mut().unwrap()).poll(cx)) { |
| <span class="prelude-val">Ok</span>(proto::Dispatched::Shutdown) => <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Ok</span>(())), |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="prelude-val">Ok</span>(proto::Dispatched::Upgrade(pending)) => { |
| <span class="kw">match </span><span class="self">self</span>.inner.conn.take() { |
| <span class="prelude-val">Some</span>(ProtoServer::H1 { h1, .. }) => { |
| <span class="kw">let </span>(io, buf, <span class="kw">_</span>) = h1.into_inner(); |
| pending.fulfill(Upgraded::new(io, buf)); |
| <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Ok</span>(())); |
| } |
| <span class="kw">_ </span>=> { |
| drop(pending); |
| <span class="macro">unreachable!</span>(<span class="string">"Upgrade expects h1"</span>) |
| } |
| }; |
| } |
| <span class="prelude-val">Err</span>(e) => { |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| #[cfg(feature = <span class="string">"http2"</span>)] |
| </span><span class="kw">match </span><span class="kw-2">*</span>e.kind() { |
| Kind::Parse(Parse::VersionH2) <span class="kw">if </span><span class="self">self</span>.inner.fallback.to_h2() => { |
| <span class="self">self</span>.inner.upgrade_h2(); |
| <span class="kw">continue</span>; |
| } |
| <span class="kw">_ </span>=> (), |
| } |
| |
| <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Err</span>(e)); |
| } |
| } |
| } |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="hyper" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
