| <!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/body/body.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>body.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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| </pre><pre class="rust"><code><span class="kw">use </span>std::borrow::Cow; |
| <span class="attribute">#[cfg(feature = <span class="string">"stream"</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>futures_channel::mpsc; |
| <span class="kw">use </span>futures_channel::oneshot; |
| <span class="kw">use </span>futures_core::Stream; <span class="comment">// for mpsc::Receiver |
| </span><span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span><span class="kw">use </span>futures_util::TryStreamExt; |
| <span class="kw">use </span>http::HeaderMap; |
| <span class="kw">use </span>http_body::{Body <span class="kw">as </span>HttpBody, SizeHint}; |
| |
| <span class="kw">use </span><span class="kw">super</span>::DecodedLength; |
| <span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::common::sync_wrapper::SyncWrapper; |
| <span class="kw">use </span><span class="kw">crate</span>::common::Future; |
| <span class="attribute">#[cfg(all(feature = <span class="string">"client"</span>, any(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::{task, watch, Pin, Poll}; |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span><span class="kw">use </span><span class="kw">crate</span>::proto::h2::ping; |
| |
| <span class="kw">type </span>BodySender = mpsc::Sender<<span class="prelude-ty">Result</span><Bytes, <span class="kw">crate</span>::Error>>; |
| <span class="kw">type </span>TrailersSender = oneshot::Sender<HeaderMap>; |
| |
| <span class="doccomment">/// A stream of `Bytes`, used when receiving bodies. |
| /// |
| /// A good default [`HttpBody`](crate::body::HttpBody) to use in many |
| /// applications. |
| /// |
| /// Note: To read the full body, use [`body::to_bytes`](crate::body::to_bytes()) |
| /// or [`body::aggregate`](crate::body::aggregate()). |
| </span><span class="attribute">#[must_use = <span class="string">"streams do nothing unless polled"</span>] |
| </span><span class="kw">pub struct </span>Body { |
| kind: Kind, |
| <span class="doccomment">/// Keep the extra bits in an `Option<Box<Extra>>`, so that |
| /// Body stays small in the common case (no extras needed). |
| </span>extra: <span class="prelude-ty">Option</span><Box<Extra>>, |
| } |
| |
| <span class="kw">enum </span>Kind { |
| Once(<span class="prelude-ty">Option</span><Bytes>), |
| Chan { |
| content_length: DecodedLength, |
| want_tx: watch::Sender, |
| data_rx: mpsc::Receiver<<span class="prelude-ty">Result</span><Bytes, <span class="kw">crate</span>::Error>>, |
| trailers_rx: oneshot::Receiver<HeaderMap>, |
| }, |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span>H2 { |
| ping: ping::Recorder, |
| content_length: DecodedLength, |
| recv: h2::RecvStream, |
| }, |
| <span class="attribute">#[cfg(feature = <span class="string">"ffi"</span>)] |
| </span>Ffi(<span class="kw">crate</span>::ffi::UserBody), |
| <span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span>Wrapped( |
| SyncWrapper< |
| Pin<Box<<span class="kw">dyn </span>Stream<Item = <span class="prelude-ty">Result</span><Bytes, Box<<span class="kw">dyn </span>StdError + Send + Sync>>> + Send>>, |
| >, |
| ), |
| } |
| |
| <span class="kw">struct </span>Extra { |
| <span class="doccomment">/// Allow the client to pass a future to delay the `Body` from returning |
| /// EOF. This allows the `Client` to try to put the idle connection |
| /// back into the pool before the body is "finished". |
| /// |
| /// The reason for this is so that creating a new request after finishing |
| /// streaming the body of a response could sometimes result in creating |
| /// a brand new connection, since the pool didn't know about the idle |
| /// connection yet. |
| </span>delayed_eof: <span class="prelude-ty">Option</span><DelayEof>, |
| } |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"client"</span>, any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)))] |
| </span><span class="kw">type </span>DelayEofUntil = oneshot::Receiver<Never>; |
| |
| <span class="kw">enum </span>DelayEof { |
| <span class="doccomment">/// Initial state, stream hasn't seen EOF yet. |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg(feature = <span class="string">"client"</span>)] |
| </span>NotEof(DelayEofUntil), |
| <span class="doccomment">/// Transitions to this state once we've seen `poll` try to |
| /// return EOF (`None`). This future is then polled, and |
| /// when it completes, the Body finally returns EOF (`None`). |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg(feature = <span class="string">"client"</span>)] |
| </span>Eof(DelayEofUntil), |
| } |
| |
| <span class="doccomment">/// A sender half created through [`Body::channel()`]. |
| /// |
| /// Useful when wanting to stream chunks from another thread. |
| /// |
| /// ## Body Closing |
| /// |
| /// Note that the request body will always be closed normally when the sender is dropped (meaning |
| /// that the empty terminating chunk will be sent to the remote). If you desire to close the |
| /// connection with an incomplete response (e.g. in the case of an error during asynchronous |
| /// processing), call the [`Sender::abort()`] method to abort the body in an abnormal fashion. |
| /// |
| /// [`Body::channel()`]: struct.Body.html#method.channel |
| /// [`Sender::abort()`]: struct.Sender.html#method.abort |
| </span><span class="attribute">#[must_use = <span class="string">"Sender does nothing unless sent on"</span>] |
| </span><span class="kw">pub struct </span>Sender { |
| want_rx: watch::Receiver, |
| data_tx: BodySender, |
| trailers_tx: <span class="prelude-ty">Option</span><TrailersSender>, |
| } |
| |
| <span class="kw">const </span>WANT_PENDING: usize = <span class="number">1</span>; |
| <span class="kw">const </span>WANT_READY: usize = <span class="number">2</span>; |
| |
| <span class="kw">impl </span>Body { |
| <span class="doccomment">/// Create an empty `Body` stream. |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// use hyper::{Body, Request}; |
| /// |
| /// // create a `GET /` request |
| /// let get = Request::new(Body::empty()); |
| /// ``` |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>empty() -> Body { |
| Body::new(Kind::Once(<span class="prelude-val">None</span>)) |
| } |
| |
| <span class="doccomment">/// Create a `Body` stream with an associated sender half. |
| /// |
| /// Useful when wanting to stream chunks from another thread. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>channel() -> (Sender, Body) { |
| <span class="self">Self</span>::new_channel(DecodedLength::CHUNKED, <span class="comment">/*wanter =*/ </span><span class="bool-val">false</span>) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new_channel(content_length: DecodedLength, wanter: bool) -> (Sender, Body) { |
| <span class="kw">let </span>(data_tx, data_rx) = mpsc::channel(<span class="number">0</span>); |
| <span class="kw">let </span>(trailers_tx, trailers_rx) = oneshot::channel(); |
| |
| <span class="comment">// If wanter is true, `Sender::poll_ready()` won't becoming ready |
| // until the `Body` has been polled for data once. |
| </span><span class="kw">let </span>want = <span class="kw">if </span>wanter { WANT_PENDING } <span class="kw">else </span>{ WANT_READY }; |
| |
| <span class="kw">let </span>(want_tx, want_rx) = watch::channel(want); |
| |
| <span class="kw">let </span>tx = Sender { |
| want_rx, |
| data_tx, |
| trailers_tx: <span class="prelude-val">Some</span>(trailers_tx), |
| }; |
| <span class="kw">let </span>rx = Body::new(Kind::Chan { |
| content_length, |
| want_tx, |
| data_rx, |
| trailers_rx, |
| }); |
| |
| (tx, rx) |
| } |
| |
| <span class="doccomment">/// Wrap a futures `Stream` in a box inside `Body`. |
| /// |
| /// # Example |
| /// |
| /// ``` |
| /// # use hyper::Body; |
| /// let chunks: Vec<Result<_, std::io::Error>> = vec![ |
| /// Ok("hello"), |
| /// Ok(" "), |
| /// Ok("world"), |
| /// ]; |
| /// |
| /// let stream = futures_util::stream::iter(chunks); |
| /// |
| /// let body = Body::wrap_stream(stream); |
| /// ``` |
| /// |
| /// # Optional |
| /// |
| /// This function requires enabling the `stream` feature in your |
| /// `Cargo.toml`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">"stream"</span>)))] |
| </span><span class="kw">pub fn </span>wrap_stream<S, O, E>(stream: S) -> Body |
| <span class="kw">where |
| </span>S: Stream<Item = <span class="prelude-ty">Result</span><O, E>> + Send + <span class="lifetime">'static</span>, |
| O: Into<Bytes> + <span class="lifetime">'static</span>, |
| E: Into<Box<<span class="kw">dyn </span>StdError + Send + Sync>> + <span class="lifetime">'static</span>, |
| { |
| <span class="kw">let </span>mapped = stream.map_ok(Into::into).map_err(Into::into); |
| Body::new(Kind::Wrapped(SyncWrapper::new(Box::pin(mapped)))) |
| } |
| |
| <span class="kw">fn </span>new(kind: Kind) -> Body { |
| Body { kind, extra: <span class="prelude-val">None </span>} |
| } |
| |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>h2( |
| recv: h2::RecvStream, |
| <span class="kw-2">mut </span>content_length: DecodedLength, |
| ping: ping::Recorder, |
| ) -> <span class="self">Self </span>{ |
| <span class="comment">// If the stream is already EOS, then the "unknown length" is clearly |
| // actually ZERO. |
| </span><span class="kw">if </span>!content_length.is_exact() && recv.is_end_stream() { |
| content_length = DecodedLength::ZERO; |
| } |
| <span class="kw">let </span>body = Body::new(Kind::H2 { |
| ping, |
| content_length, |
| recv, |
| }); |
| |
| body |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg(feature = <span class="string">"client"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>delayed_eof(<span class="kw-2">&mut </span><span class="self">self</span>, fut: DelayEofUntil) { |
| <span class="self">self</span>.extra_mut().delayed_eof = <span class="prelude-val">Some</span>(DelayEof::NotEof(fut)); |
| } |
| |
| <span class="kw">fn </span>take_delayed_eof(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><DelayEof> { |
| <span class="self">self</span>.extra |
| .as_mut() |
| .and_then(|extra| extra.delayed_eof.take()) |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| </span><span class="kw">fn </span>extra_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>Extra { |
| <span class="self">self</span>.extra |
| .get_or_insert_with(|| Box::new(Extra { delayed_eof: <span class="prelude-val">None </span>})) |
| } |
| |
| <span class="kw">fn </span>poll_eof(<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="prelude-ty">Option</span><<span class="kw">crate</span>::Result<Bytes>>> { |
| <span class="kw">match </span><span class="self">self</span>.take_delayed_eof() { |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg(feature = <span class="string">"client"</span>)] |
| </span><span class="prelude-val">Some</span>(DelayEof::NotEof(<span class="kw-2">mut </span>delay)) => <span class="kw">match </span><span class="self">self</span>.poll_inner(cx) { |
| ok @ Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(..))) | ok @ Poll::Pending => { |
| <span class="self">self</span>.extra_mut().delayed_eof = <span class="prelude-val">Some</span>(DelayEof::NotEof(delay)); |
| ok |
| } |
| Poll::Ready(<span class="prelude-val">None</span>) => <span class="kw">match </span>Pin::new(<span class="kw-2">&mut </span>delay).poll(cx) { |
| Poll::Ready(<span class="prelude-val">Ok</span>(never)) => <span class="kw">match </span>never {}, |
| Poll::Pending => { |
| <span class="self">self</span>.extra_mut().delayed_eof = <span class="prelude-val">Some</span>(DelayEof::Eof(delay)); |
| Poll::Pending |
| } |
| Poll::Ready(<span class="prelude-val">Err</span>(_done)) => Poll::Ready(<span class="prelude-val">None</span>), |
| }, |
| Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Err</span>(e))) => Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Err</span>(e))), |
| }, |
| <span class="attribute">#[cfg(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>))] |
| #[cfg(feature = <span class="string">"client"</span>)] |
| </span><span class="prelude-val">Some</span>(DelayEof::Eof(<span class="kw-2">mut </span>delay)) => <span class="kw">match </span>Pin::new(<span class="kw-2">&mut </span>delay).poll(cx) { |
| Poll::Ready(<span class="prelude-val">Ok</span>(never)) => <span class="kw">match </span>never {}, |
| Poll::Pending => { |
| <span class="self">self</span>.extra_mut().delayed_eof = <span class="prelude-val">Some</span>(DelayEof::Eof(delay)); |
| Poll::Pending |
| } |
| Poll::Ready(<span class="prelude-val">Err</span>(_done)) => Poll::Ready(<span class="prelude-val">None</span>), |
| }, |
| <span class="attribute">#[cfg(any( |
| not(any(feature = <span class="string">"http1"</span>, feature = <span class="string">"http2"</span>)), |
| not(feature = <span class="string">"client"</span>) |
| ))] |
| </span><span class="prelude-val">Some</span>(delay_eof) => <span class="kw">match </span>delay_eof {}, |
| <span class="prelude-val">None </span>=> <span class="self">self</span>.poll_inner(cx), |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"ffi"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_ffi_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span><span class="kw">crate</span>::ffi::UserBody { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Ffi(<span class="kw-2">ref mut </span>body) => <span class="kw">return </span>body, |
| <span class="kw">_ </span>=> { |
| <span class="self">self</span>.kind = Kind::Ffi(<span class="kw">crate</span>::ffi::UserBody::new()); |
| } |
| } |
| |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Ffi(<span class="kw-2">ref mut </span>body) => body, |
| <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| } |
| } |
| |
| <span class="kw">fn </span>poll_inner(<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="prelude-ty">Option</span><<span class="kw">crate</span>::Result<Bytes>>> { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Once(<span class="kw-2">ref mut </span>val) => Poll::Ready(val.take().map(<span class="prelude-val">Ok</span>)), |
| Kind::Chan { |
| content_length: <span class="kw-2">ref mut </span>len, |
| <span class="kw-2">ref mut </span>data_rx, |
| <span class="kw-2">ref mut </span>want_tx, |
| .. |
| } => { |
| want_tx.send(WANT_READY); |
| |
| <span class="kw">match </span><span class="macro">ready!</span>(Pin::new(data_rx).poll_next(cx)<span class="question-mark">?</span>) { |
| <span class="prelude-val">Some</span>(chunk) => { |
| len.sub_if(chunk.len() <span class="kw">as </span>u64); |
| Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(chunk))) |
| } |
| <span class="prelude-val">None </span>=> Poll::Ready(<span class="prelude-val">None</span>), |
| } |
| } |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span>Kind::H2 { |
| <span class="kw-2">ref </span>ping, |
| recv: <span class="kw-2">ref mut </span>h2, |
| content_length: <span class="kw-2">ref mut </span>len, |
| } => <span class="kw">match </span><span class="macro">ready!</span>(h2.poll_data(cx)) { |
| <span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(bytes)) => { |
| <span class="kw">let _ </span>= h2.flow_control().release_capacity(bytes.len()); |
| len.sub_if(bytes.len() <span class="kw">as </span>u64); |
| ping.record_data(bytes.len()); |
| Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(bytes))) |
| } |
| <span class="prelude-val">Some</span>(<span class="prelude-val">Err</span>(e)) => Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_body(e)))), |
| <span class="prelude-val">None </span>=> Poll::Ready(<span class="prelude-val">None</span>), |
| }, |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"ffi"</span>)] |
| </span>Kind::Ffi(<span class="kw-2">ref mut </span>body) => body.poll_data(cx), |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span>Kind::Wrapped(<span class="kw-2">ref mut </span>s) => <span class="kw">match </span><span class="macro">ready!</span>(s.get_mut().as_mut().poll_next(cx)) { |
| <span class="prelude-val">Some</span>(res) => Poll::Ready(<span class="prelude-val">Some</span>(res.map_err(<span class="kw">crate</span>::Error::new_body))), |
| <span class="prelude-val">None </span>=> Poll::Ready(<span class="prelude-val">None</span>), |
| }, |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>take_full_data(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Bytes> { |
| <span class="kw">if let </span>Kind::Once(<span class="kw-2">ref mut </span>chunk) = <span class="self">self</span>.kind { |
| chunk.take() |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| } |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>Body { |
| <span class="doccomment">/// Returns `Body::empty()`. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>default() -> Body { |
| Body::empty() |
| } |
| } |
| |
| <span class="kw">impl </span>HttpBody <span class="kw">for </span>Body { |
| <span class="kw">type </span>Data = Bytes; |
| <span class="kw">type </span>Error = <span class="kw">crate</span>::Error; |
| |
| <span class="kw">fn </span>poll_data( |
| <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="prelude-ty">Option</span><<span class="prelude-ty">Result</span><<span class="self">Self</span>::Data, <span class="self">Self</span>::Error>>> { |
| <span class="self">self</span>.poll_eof(cx) |
| } |
| |
| <span class="kw">fn </span>poll_trailers( |
| <span class="attribute">#[cfg_attr(not(feature = <span class="string">"http2"</span>), allow(unused_mut))] </span><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="attribute">#[cfg_attr(not(feature = <span class="string">"http2"</span>), allow(unused))] </span>cx: <span class="kw-2">&mut </span>task::Context<<span class="lifetime">'_</span>>, |
| ) -> Poll<<span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><HeaderMap>, <span class="self">Self</span>::Error>> { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span>Kind::H2 { |
| recv: <span class="kw-2">ref mut </span>h2, |
| <span class="kw-2">ref </span>ping, |
| .. |
| } => <span class="kw">match </span><span class="macro">ready!</span>(h2.poll_trailers(cx)) { |
| <span class="prelude-val">Ok</span>(t) => { |
| ping.record_non_data(); |
| Poll::Ready(<span class="prelude-val">Ok</span>(t)) |
| } |
| <span class="prelude-val">Err</span>(e) => Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_h2(e))), |
| }, |
| Kind::Chan { |
| <span class="kw-2">ref mut </span>trailers_rx, |
| .. |
| } => <span class="kw">match </span><span class="macro">ready!</span>(Pin::new(trailers_rx).poll(cx)) { |
| <span class="prelude-val">Ok</span>(t) => Poll::Ready(<span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(t))), |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => Poll::Ready(<span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>)), |
| }, |
| <span class="attribute">#[cfg(feature = <span class="string">"ffi"</span>)] |
| </span>Kind::Ffi(<span class="kw-2">ref mut </span>body) => body.poll_trailers(cx), |
| <span class="kw">_ </span>=> Poll::Ready(<span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>)), |
| } |
| } |
| |
| <span class="kw">fn </span>is_end_stream(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Once(<span class="kw-2">ref </span>val) => val.is_none(), |
| Kind::Chan { content_length, .. } => content_length == DecodedLength::ZERO, |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span>Kind::H2 { recv: <span class="kw-2">ref </span>h2, .. } => h2.is_end_stream(), |
| <span class="attribute">#[cfg(feature = <span class="string">"ffi"</span>)] |
| </span>Kind::Ffi(..) => <span class="bool-val">false</span>, |
| <span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span>Kind::Wrapped(..) => <span class="bool-val">false</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> SizeHint { |
| <span class="macro">macro_rules! </span>opt_len { |
| (<span class="macro-nonterminal">$content_length</span>:expr) => {{ |
| <span class="kw">let </span><span class="kw-2">mut </span>hint = SizeHint::default(); |
| |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(content_length) = <span class="macro-nonterminal">$content_length</span>.into_opt() { |
| hint.set_exact(content_length); |
| } |
| |
| hint |
| }}; |
| } |
| |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Once(<span class="prelude-val">Some</span>(<span class="kw-2">ref </span>val)) => SizeHint::with_exact(val.len() <span class="kw">as </span>u64), |
| Kind::Once(<span class="prelude-val">None</span>) => SizeHint::with_exact(<span class="number">0</span>), |
| <span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span>Kind::Wrapped(..) => SizeHint::default(), |
| Kind::Chan { content_length, .. } => <span class="macro">opt_len!</span>(content_length), |
| <span class="attribute">#[cfg(all(feature = <span class="string">"http2"</span>, any(feature = <span class="string">"client"</span>, feature = <span class="string">"server"</span>)))] |
| </span>Kind::H2 { content_length, .. } => <span class="macro">opt_len!</span>(content_length), |
| <span class="attribute">#[cfg(feature = <span class="string">"ffi"</span>)] |
| </span>Kind::Ffi(..) => SizeHint::default(), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>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 { |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Streaming; |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Empty; |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Full<<span class="lifetime">'a</span>>(<span class="kw-2">&</span><span class="lifetime">'a </span>Bytes); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>builder = f.debug_tuple(<span class="string">"Body"</span>); |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Once(<span class="prelude-val">None</span>) => builder.field(<span class="kw-2">&</span>Empty), |
| Kind::Once(<span class="prelude-val">Some</span>(<span class="kw-2">ref </span>chunk)) => builder.field(<span class="kw-2">&</span>Full(chunk)), |
| <span class="kw">_ </span>=> builder.field(<span class="kw-2">&</span>Streaming), |
| }; |
| |
| builder.finish() |
| } |
| } |
| |
| <span class="doccomment">/// # Optional |
| /// |
| /// This function requires enabling the `stream` feature in your |
| /// `Cargo.toml`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span><span class="kw">impl </span>Stream <span class="kw">for </span>Body { |
| <span class="kw">type </span>Item = <span class="kw">crate</span>::Result<Bytes>; |
| |
| <span class="kw">fn </span>poll_next(<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="prelude-ty">Option</span><<span class="self">Self</span>::Item>> { |
| HttpBody::poll_data(<span class="self">self</span>, cx) |
| } |
| } |
| |
| <span class="doccomment">/// # Optional |
| /// |
| /// This function requires enabling the `stream` feature in your |
| /// `Cargo.toml`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"stream"</span>)] |
| </span><span class="kw">impl </span>From<Box<<span class="kw">dyn </span>Stream<Item = <span class="prelude-ty">Result</span><Bytes, Box<<span class="kw">dyn </span>StdError + Send + Sync>>> + Send>> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from( |
| stream: Box<<span class="kw">dyn </span>Stream<Item = <span class="prelude-ty">Result</span><Bytes, Box<<span class="kw">dyn </span>StdError + Send + Sync>>> + Send>, |
| ) -> Body { |
| Body::new(Kind::Wrapped(SyncWrapper::new(stream.into()))) |
| } |
| } |
| |
| <span class="kw">impl </span>From<Bytes> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(chunk: Bytes) -> Body { |
| <span class="kw">if </span>chunk.is_empty() { |
| Body::empty() |
| } <span class="kw">else </span>{ |
| Body::new(Kind::Once(<span class="prelude-val">Some</span>(chunk))) |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<Vec<u8>> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(vec: Vec<u8>) -> Body { |
| Body::from(Bytes::from(vec)) |
| } |
| } |
| |
| <span class="kw">impl </span>From<<span class="kw-2">&</span><span class="lifetime">'static </span>[u8]> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(slice: <span class="kw-2">&</span><span class="lifetime">'static </span>[u8]) -> Body { |
| Body::from(Bytes::from(slice)) |
| } |
| } |
| |
| <span class="kw">impl </span>From<Cow<<span class="lifetime">'static</span>, [u8]>> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(cow: Cow<<span class="lifetime">'static</span>, [u8]>) -> Body { |
| <span class="kw">match </span>cow { |
| Cow::Borrowed(b) => Body::from(b), |
| Cow::Owned(o) => Body::from(o), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<String> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(s: String) -> Body { |
| Body::from(Bytes::from(s.into_bytes())) |
| } |
| } |
| |
| <span class="kw">impl </span>From<<span class="kw-2">&</span><span class="lifetime">'static </span>str> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(slice: <span class="kw-2">&</span><span class="lifetime">'static </span>str) -> Body { |
| Body::from(Bytes::from(slice.as_bytes())) |
| } |
| } |
| |
| <span class="kw">impl </span>From<Cow<<span class="lifetime">'static</span>, str>> <span class="kw">for </span>Body { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(cow: Cow<<span class="lifetime">'static</span>, str>) -> Body { |
| <span class="kw">match </span>cow { |
| Cow::Borrowed(b) => Body::from(b), |
| Cow::Owned(o) => Body::from(o), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>Sender { |
| <span class="doccomment">/// Check to see if this `Sender` can send more data. |
| </span><span class="kw">pub fn </span>poll_ready(<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="comment">// Check if the receiver end has tried polling for the body yet |
| </span><span class="macro">ready!</span>(<span class="self">self</span>.poll_want(cx)<span class="question-mark">?</span>); |
| <span class="self">self</span>.data_tx |
| .poll_ready(cx) |
| .map_err(|<span class="kw">_</span>| <span class="kw">crate</span>::Error::new_closed()) |
| } |
| |
| <span class="kw">fn </span>poll_want(<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">match </span><span class="self">self</span>.want_rx.load(cx) { |
| WANT_READY => Poll::Ready(<span class="prelude-val">Ok</span>(())), |
| WANT_PENDING => Poll::Pending, |
| watch::CLOSED => Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_closed())), |
| unexpected => <span class="macro">unreachable!</span>(<span class="string">"want_rx value: {}"</span>, unexpected), |
| } |
| } |
| |
| <span class="kw">async fn </span>ready(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw">crate</span>::Result<()> { |
| futures_util::future::poll_fn(|cx| <span class="self">self</span>.poll_ready(cx)).<span class="kw">await |
| </span>} |
| |
| <span class="doccomment">/// Send data on data channel when it is ready. |
| </span><span class="kw">pub async fn </span>send_data(<span class="kw-2">&mut </span><span class="self">self</span>, chunk: Bytes) -> <span class="kw">crate</span>::Result<()> { |
| <span class="self">self</span>.ready().<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="self">self</span>.data_tx |
| .try_send(<span class="prelude-val">Ok</span>(chunk)) |
| .map_err(|<span class="kw">_</span>| <span class="kw">crate</span>::Error::new_closed()) |
| } |
| |
| <span class="doccomment">/// Send trailers on trailers channel. |
| </span><span class="kw">pub async fn </span>send_trailers(<span class="kw-2">&mut </span><span class="self">self</span>, trailers: HeaderMap) -> <span class="kw">crate</span>::Result<()> { |
| <span class="kw">let </span>tx = <span class="kw">match </span><span class="self">self</span>.trailers_tx.take() { |
| <span class="prelude-val">Some</span>(tx) => tx, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_closed()), |
| }; |
| tx.send(trailers).map_err(|<span class="kw">_</span>| <span class="kw">crate</span>::Error::new_closed()) |
| } |
| |
| <span class="doccomment">/// Try to send data on this channel. |
| /// |
| /// # Errors |
| /// |
| /// Returns `Err(Bytes)` if the channel could not (currently) accept |
| /// another `Bytes`. |
| /// |
| /// # Note |
| /// |
| /// This is mostly useful for when trying to send from some other thread |
| /// that doesn't have an async context. If in an async context, prefer |
| /// `send_data()` instead. |
| </span><span class="kw">pub fn </span>try_send_data(<span class="kw-2">&mut </span><span class="self">self</span>, chunk: Bytes) -> <span class="prelude-ty">Result</span><(), Bytes> { |
| <span class="self">self</span>.data_tx |
| .try_send(<span class="prelude-val">Ok</span>(chunk)) |
| .map_err(|err| err.into_inner().expect(<span class="string">"just sent Ok"</span>)) |
| } |
| |
| <span class="doccomment">/// Aborts the body in an abnormal fashion. |
| </span><span class="kw">pub fn </span>abort(<span class="self">self</span>) { |
| <span class="kw">let _ </span>= <span class="self">self |
| </span>.data_tx |
| <span class="comment">// clone so the send works even if buffer is full |
| </span>.clone() |
| .try_send(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_body_write_aborted())); |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"http1"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>send_error(<span class="kw-2">&mut </span><span class="self">self</span>, err: <span class="kw">crate</span>::Error) { |
| <span class="kw">let _ </span>= <span class="self">self</span>.data_tx.try_send(<span class="prelude-val">Err</span>(err)); |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Sender { |
| <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 { |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Open; |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>Closed; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>builder = f.debug_tuple(<span class="string">"Sender"</span>); |
| <span class="kw">match </span><span class="self">self</span>.want_rx.peek() { |
| watch::CLOSED => builder.field(<span class="kw-2">&</span>Closed), |
| <span class="kw">_ </span>=> builder.field(<span class="kw-2">&</span>Open), |
| }; |
| |
| builder.finish() |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span>std::mem; |
| <span class="kw">use </span>std::task::Poll; |
| |
| <span class="kw">use super</span>::{Body, DecodedLength, HttpBody, Sender, SizeHint}; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_size_of() { |
| <span class="comment">// These are mostly to help catch *accidentally* increasing |
| // the size by too much. |
| |
| </span><span class="kw">let </span>body_size = mem::size_of::<Body>(); |
| <span class="kw">let </span>body_expected_size = mem::size_of::<u64>() * <span class="number">6</span>; |
| <span class="macro">assert!</span>( |
| body_size <= body_expected_size, |
| <span class="string">"Body size = {} <= {}"</span>, |
| body_size, |
| body_expected_size, |
| ); |
| |
| <span class="macro">assert_eq!</span>(body_size, mem::size_of::<<span class="prelude-ty">Option</span><Body>>(), <span class="string">"Option<Body>"</span>); |
| |
| <span class="macro">assert_eq!</span>( |
| mem::size_of::<Sender>(), |
| mem::size_of::<usize>() * <span class="number">5</span>, |
| <span class="string">"Sender" |
| </span>); |
| |
| <span class="macro">assert_eq!</span>( |
| mem::size_of::<Sender>(), |
| mem::size_of::<<span class="prelude-ty">Option</span><Sender>>(), |
| <span class="string">"Option<Sender>" |
| </span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>size_hint() { |
| <span class="kw">fn </span>eq(body: Body, b: SizeHint, note: <span class="kw-2">&</span>str) { |
| <span class="kw">let </span>a = body.size_hint(); |
| <span class="macro">assert_eq!</span>(a.lower(), b.lower(), <span class="string">"lower for {:?}"</span>, note); |
| <span class="macro">assert_eq!</span>(a.upper(), b.upper(), <span class="string">"upper for {:?}"</span>, note); |
| } |
| |
| eq(Body::from(<span class="string">"Hello"</span>), SizeHint::with_exact(<span class="number">5</span>), <span class="string">"from str"</span>); |
| |
| eq(Body::empty(), SizeHint::with_exact(<span class="number">0</span>), <span class="string">"empty"</span>); |
| |
| eq(Body::channel().<span class="number">1</span>, SizeHint::new(), <span class="string">"channel"</span>); |
| |
| eq( |
| Body::new_channel(DecodedLength::new(<span class="number">4</span>), <span class="comment">/*wanter =*/ </span><span class="bool-val">false</span>).<span class="number">1</span>, |
| SizeHint::with_exact(<span class="number">4</span>), |
| <span class="string">"channel with length"</span>, |
| ); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>channel_abort() { |
| <span class="kw">let </span>(tx, <span class="kw-2">mut </span>rx) = Body::channel(); |
| |
| tx.abort(); |
| |
| <span class="kw">let </span>err = rx.data().<span class="kw">await</span>.unwrap().unwrap_err(); |
| <span class="macro">assert!</span>(err.is_body_write_aborted(), <span class="string">"{:?}"</span>, err); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>channel_abort_when_buffer_is_full() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, <span class="kw-2">mut </span>rx) = Body::channel(); |
| |
| tx.try_send_data(<span class="string">"chunk 1"</span>.into()).expect(<span class="string">"send 1"</span>); |
| <span class="comment">// buffer is full, but can still send abort |
| </span>tx.abort(); |
| |
| <span class="kw">let </span>chunk1 = rx.data().<span class="kw">await</span>.expect(<span class="string">"item 1"</span>).expect(<span class="string">"chunk 1"</span>); |
| <span class="macro">assert_eq!</span>(chunk1, <span class="string">"chunk 1"</span>); |
| |
| <span class="kw">let </span>err = rx.data().<span class="kw">await</span>.unwrap().unwrap_err(); |
| <span class="macro">assert!</span>(err.is_body_write_aborted(), <span class="string">"{:?}"</span>, err); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>channel_buffers_one() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, _rx) = Body::channel(); |
| |
| tx.try_send_data(<span class="string">"chunk 1"</span>.into()).expect(<span class="string">"send 1"</span>); |
| |
| <span class="comment">// buffer is now full |
| </span><span class="kw">let </span>chunk2 = tx.try_send_data(<span class="string">"chunk 2"</span>.into()).expect_err(<span class="string">"send 2"</span>); |
| <span class="macro">assert_eq!</span>(chunk2, <span class="string">"chunk 2"</span>); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>channel_empty() { |
| <span class="kw">let </span>(<span class="kw">_</span>, <span class="kw-2">mut </span>rx) = Body::channel(); |
| |
| <span class="macro">assert!</span>(rx.data().<span class="kw">await</span>.is_none()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>channel_ready() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, _rx) = Body::new_channel(DecodedLength::CHUNKED, <span class="comment">/*wanter = */ </span><span class="bool-val">false</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>tx_ready = tokio_test::task::spawn(tx.ready()); |
| |
| <span class="macro">assert!</span>(tx_ready.poll().is_ready(), <span class="string">"tx is ready immediately"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>channel_wanter() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, <span class="kw-2">mut </span>rx) = Body::new_channel(DecodedLength::CHUNKED, <span class="comment">/*wanter = */ </span><span class="bool-val">true</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>tx_ready = tokio_test::task::spawn(tx.ready()); |
| <span class="kw">let </span><span class="kw-2">mut </span>rx_data = tokio_test::task::spawn(rx.data()); |
| |
| <span class="macro">assert!</span>( |
| tx_ready.poll().is_pending(), |
| <span class="string">"tx isn't ready before rx has been polled" |
| </span>); |
| |
| <span class="macro">assert!</span>(rx_data.poll().is_pending(), <span class="string">"poll rx.data"</span>); |
| <span class="macro">assert!</span>(tx_ready.is_woken(), <span class="string">"rx poll wakes tx"</span>); |
| |
| <span class="macro">assert!</span>( |
| tx_ready.poll().is_ready(), |
| <span class="string">"tx is ready after rx has been polled" |
| </span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>channel_notices_closure() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, rx) = Body::new_channel(DecodedLength::CHUNKED, <span class="comment">/*wanter = */ </span><span class="bool-val">true</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>tx_ready = tokio_test::task::spawn(tx.ready()); |
| |
| <span class="macro">assert!</span>( |
| tx_ready.poll().is_pending(), |
| <span class="string">"tx isn't ready before rx has been polled" |
| </span>); |
| |
| drop(rx); |
| <span class="macro">assert!</span>(tx_ready.is_woken(), <span class="string">"dropping rx wakes tx"</span>); |
| |
| <span class="kw">match </span>tx_ready.poll() { |
| Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw-2">ref </span>e)) <span class="kw">if </span>e.is_closed() => (), |
| unexpected => <span class="macro">panic!</span>(<span class="string">"tx poll ready unexpected: {:?}"</span>, unexpected), |
| } |
| } |
| } |
| </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> |
