| <!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/tokio-io-timeout-1.2.0/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.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="../../tokio_io_timeout/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="../../tokio_io_timeout/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="doccomment">//! Tokio wrappers which apply timeouts to IO operations. |
| //! |
| //! These timeouts are analogous to the read and write timeouts on traditional blocking sockets. A timeout countdown is |
| //! initiated when a read/write operation returns [`Poll::Pending`]. If a read/write does not return successfully before |
| //! the countdown expires, an [`io::Error`] with a kind of [`TimedOut`](io::ErrorKind::TimedOut) is returned. |
| </span><span class="attribute">#![doc(html_root_url = <span class="string">"https://docs.rs/tokio-io-timeout/1"</span>)] |
| #![warn(missing_docs)] |
| |
| </span><span class="kw">use </span>pin_project_lite::pin_project; |
| <span class="kw">use </span>std::future::Future; |
| <span class="kw">use </span>std::io; |
| <span class="kw">use </span>std::io::SeekFrom; |
| <span class="kw">use </span>std::pin::Pin; |
| <span class="kw">use </span>std::task::{Context, Poll}; |
| <span class="kw">use </span>std::time::Duration; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncSeek, AsyncWrite, ReadBuf}; |
| <span class="kw">use </span>tokio::time::{sleep_until, Instant, Sleep}; |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">struct </span>TimeoutState { |
| timeout: <span class="prelude-ty">Option</span><Duration>, |
| <span class="attribute">#[pin] |
| </span>cur: Sleep, |
| active: bool, |
| } |
| } |
| |
| <span class="kw">impl </span>TimeoutState { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>new() -> TimeoutState { |
| TimeoutState { |
| timeout: <span class="prelude-val">None</span>, |
| cur: sleep_until(Instant::now()), |
| active: <span class="bool-val">false</span>, |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>timeout(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Duration> { |
| <span class="self">self</span>.timeout |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>set_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="comment">// since this takes &mut self, we can't yet be active |
| </span><span class="self">self</span>.timeout = timeout; |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>set_timeout_pinned(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="kw-2">*</span><span class="self">self</span>.as_mut().project().timeout = timeout; |
| <span class="self">self</span>.reset(); |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>reset(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>) { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| |
| <span class="kw">if </span><span class="kw-2">*</span>this.active { |
| <span class="kw-2">*</span>this.active = <span class="bool-val">false</span>; |
| this.cur.reset(Instant::now()); |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll_check(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>this = <span class="self">self</span>.project(); |
| |
| <span class="kw">let </span>timeout = <span class="kw">match </span>this.timeout { |
| <span class="prelude-val">Some</span>(timeout) => <span class="kw-2">*</span>timeout, |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Ok</span>(()), |
| }; |
| |
| <span class="kw">if </span>!<span class="kw-2">*</span>this.active { |
| this.cur.as_mut().reset(Instant::now() + timeout); |
| <span class="kw-2">*</span>this.active = <span class="bool-val">true</span>; |
| } |
| |
| <span class="kw">match </span>this.cur.poll(cx) { |
| Poll::Ready(()) => <span class="prelude-val">Err</span>(io::Error::from(io::ErrorKind::TimedOut)), |
| Poll::Pending => <span class="prelude-val">Ok</span>(()), |
| } |
| } |
| } |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="doccomment">/// An `AsyncRead`er which applies a timeout to read operations. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>TimeoutReader<R> { |
| <span class="attribute">#[pin] |
| </span>reader: R, |
| <span class="attribute">#[pin] |
| </span>state: TimeoutState, |
| } |
| } |
| |
| <span class="kw">impl</span><R> TimeoutReader<R> |
| <span class="kw">where |
| </span>R: AsyncRead, |
| { |
| <span class="doccomment">/// Returns a new `TimeoutReader` wrapping the specified reader. |
| /// |
| /// There is initially no timeout. |
| </span><span class="kw">pub fn </span>new(reader: R) -> TimeoutReader<R> { |
| TimeoutReader { |
| reader, |
| state: TimeoutState::new(), |
| } |
| } |
| |
| <span class="doccomment">/// Returns the current read timeout. |
| </span><span class="kw">pub fn </span>timeout(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Duration> { |
| <span class="self">self</span>.state.timeout() |
| } |
| |
| <span class="doccomment">/// Sets the read timeout. |
| /// |
| /// This can only be used before the reader is pinned; use [`set_timeout_pinned`](Self::set_timeout_pinned) |
| /// otherwise. |
| </span><span class="kw">pub fn </span>set_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.state.set_timeout(timeout); |
| } |
| |
| <span class="doccomment">/// Sets the read timeout. |
| /// |
| /// This will reset any pending timeout. Use [`set_timeout`](Self::set_timeout) instead if the reader is not yet |
| /// pinned. |
| </span><span class="kw">pub fn </span>set_timeout_pinned(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.project().state.set_timeout_pinned(timeout); |
| } |
| |
| <span class="doccomment">/// Returns a shared reference to the inner reader. |
| </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>R { |
| <span class="kw-2">&</span><span class="self">self</span>.reader |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the inner reader. |
| </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>R { |
| <span class="kw-2">&mut </span><span class="self">self</span>.reader |
| } |
| |
| <span class="doccomment">/// Returns a pinned mutable reference to the inner reader. |
| </span><span class="kw">pub fn </span>get_pin_mut(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>) -> Pin<<span class="kw-2">&mut </span>R> { |
| <span class="self">self</span>.project().reader |
| } |
| |
| <span class="doccomment">/// Consumes the `TimeoutReader`, returning the inner reader. |
| </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -> R { |
| <span class="self">self</span>.reader |
| } |
| } |
| |
| <span class="kw">impl</span><R> AsyncRead <span class="kw">for </span>TimeoutReader<R> |
| <span class="kw">where |
| </span>R: AsyncRead, |
| { |
| <span class="kw">fn </span>poll_read( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| <span class="kw">let </span>r = this.reader.poll_read(cx, buf); |
| <span class="kw">match </span>r { |
| Poll::Pending => this.state.poll_check(cx)<span class="question-mark">?</span>, |
| <span class="kw">_ </span>=> this.state.reset(), |
| } |
| r |
| } |
| } |
| |
| <span class="kw">impl</span><R> AsyncWrite <span class="kw">for </span>TimeoutReader<R> |
| <span class="kw">where |
| </span>R: AsyncWrite, |
| { |
| <span class="kw">fn </span>poll_write( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="self">self</span>.project().reader.poll_write(cx, buf) |
| } |
| |
| <span class="kw">fn </span>poll_flush(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="self">self</span>.project().reader.poll_flush(cx) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="self">self</span>.project().reader.poll_shutdown(cx) |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| bufs: <span class="kw-2">&</span>[io::IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<io::Result<usize>> { |
| <span class="self">self</span>.project().reader.poll_write_vectored(cx, bufs) |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.reader.is_write_vectored() |
| } |
| } |
| |
| <span class="kw">impl</span><R> AsyncSeek <span class="kw">for </span>TimeoutReader<R> |
| <span class="kw">where |
| </span>R: AsyncSeek, |
| { |
| <span class="kw">fn </span>start_seek(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, position: SeekFrom) -> io::Result<()> { |
| <span class="self">self</span>.project().reader.start_seek(position) |
| } |
| <span class="kw">fn </span>poll_complete(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<io::Result<u64>> { |
| <span class="self">self</span>.project().reader.poll_complete(cx) |
| } |
| } |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="doccomment">/// An `AsyncWrite`er which applies a timeout to write operations. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>TimeoutWriter<W> { |
| <span class="attribute">#[pin] |
| </span>writer: W, |
| <span class="attribute">#[pin] |
| </span>state: TimeoutState, |
| } |
| } |
| |
| <span class="kw">impl</span><W> TimeoutWriter<W> |
| <span class="kw">where |
| </span>W: AsyncWrite, |
| { |
| <span class="doccomment">/// Returns a new `TimeoutReader` wrapping the specified reader. |
| /// |
| /// There is initially no timeout. |
| </span><span class="kw">pub fn </span>new(writer: W) -> TimeoutWriter<W> { |
| TimeoutWriter { |
| writer, |
| state: TimeoutState::new(), |
| } |
| } |
| |
| <span class="doccomment">/// Returns the current write timeout. |
| </span><span class="kw">pub fn </span>timeout(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Duration> { |
| <span class="self">self</span>.state.timeout() |
| } |
| |
| <span class="doccomment">/// Sets the write timeout. |
| /// |
| /// This can only be used before the writer is pinned; use [`set_timeout_pinned`](Self::set_timeout_pinned) |
| /// otherwise. |
| </span><span class="kw">pub fn </span>set_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.state.set_timeout(timeout); |
| } |
| |
| <span class="doccomment">/// Sets the write timeout. |
| /// |
| /// This will reset any pending timeout. Use [`set_timeout`](Self::set_timeout) instead if the reader is not yet |
| /// pinned. |
| </span><span class="kw">pub fn </span>set_timeout_pinned(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.project().state.set_timeout_pinned(timeout); |
| } |
| |
| <span class="doccomment">/// Returns a shared reference to the inner writer. |
| </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>W { |
| <span class="kw-2">&</span><span class="self">self</span>.writer |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the inner writer. |
| </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>W { |
| <span class="kw-2">&mut </span><span class="self">self</span>.writer |
| } |
| |
| <span class="doccomment">/// Returns a pinned mutable reference to the inner writer. |
| </span><span class="kw">pub fn </span>get_pin_mut(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>) -> Pin<<span class="kw-2">&mut </span>W> { |
| <span class="self">self</span>.project().writer |
| } |
| |
| <span class="doccomment">/// Consumes the `TimeoutWriter`, returning the inner writer. |
| </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -> W { |
| <span class="self">self</span>.writer |
| } |
| } |
| |
| <span class="kw">impl</span><W> AsyncWrite <span class="kw">for </span>TimeoutWriter<W> |
| <span class="kw">where |
| </span>W: AsyncWrite, |
| { |
| <span class="kw">fn </span>poll_write( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| <span class="kw">let </span>r = this.writer.poll_write(cx, buf); |
| <span class="kw">match </span>r { |
| Poll::Pending => this.state.poll_check(cx)<span class="question-mark">?</span>, |
| <span class="kw">_ </span>=> this.state.reset(), |
| } |
| r |
| } |
| |
| <span class="kw">fn </span>poll_flush(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| <span class="kw">let </span>r = this.writer.poll_flush(cx); |
| <span class="kw">match </span>r { |
| Poll::Pending => this.state.poll_check(cx)<span class="question-mark">?</span>, |
| <span class="kw">_ </span>=> this.state.reset(), |
| } |
| r |
| } |
| |
| <span class="kw">fn </span>poll_shutdown(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| <span class="kw">let </span>r = this.writer.poll_shutdown(cx); |
| <span class="kw">match </span>r { |
| Poll::Pending => this.state.poll_check(cx)<span class="question-mark">?</span>, |
| <span class="kw">_ </span>=> this.state.reset(), |
| } |
| r |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| bufs: <span class="kw-2">&</span>[io::IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<io::Result<usize>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| <span class="kw">let </span>r = this.writer.poll_write_vectored(cx, bufs); |
| <span class="kw">match </span>r { |
| Poll::Pending => this.state.poll_check(cx)<span class="question-mark">?</span>, |
| <span class="kw">_ </span>=> this.state.reset(), |
| } |
| r |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.writer.is_write_vectored() |
| } |
| } |
| |
| <span class="kw">impl</span><W> AsyncRead <span class="kw">for </span>TimeoutWriter<W> |
| <span class="kw">where |
| </span>W: AsyncRead, |
| { |
| <span class="kw">fn </span>poll_read( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="self">self</span>.project().writer.poll_read(cx, buf) |
| } |
| } |
| |
| <span class="kw">impl</span><W> AsyncSeek <span class="kw">for </span>TimeoutWriter<W> |
| <span class="kw">where |
| </span>W: AsyncSeek, |
| { |
| <span class="kw">fn </span>start_seek(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, position: SeekFrom) -> io::Result<()> { |
| <span class="self">self</span>.project().writer.start_seek(position) |
| } |
| <span class="kw">fn </span>poll_complete(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<io::Result<u64>> { |
| <span class="self">self</span>.project().writer.poll_complete(cx) |
| } |
| } |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="doccomment">/// A stream which applies read and write timeouts to an inner stream. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>TimeoutStream<S> { |
| <span class="attribute">#[pin] |
| </span>stream: TimeoutReader<TimeoutWriter<S>> |
| } |
| } |
| |
| <span class="kw">impl</span><S> TimeoutStream<S> |
| <span class="kw">where |
| </span>S: AsyncRead + AsyncWrite, |
| { |
| <span class="doccomment">/// Returns a new `TimeoutStream` wrapping the specified stream. |
| /// |
| /// There is initially no read or write timeout. |
| </span><span class="kw">pub fn </span>new(stream: S) -> TimeoutStream<S> { |
| <span class="kw">let </span>writer = TimeoutWriter::new(stream); |
| <span class="kw">let </span>stream = TimeoutReader::new(writer); |
| TimeoutStream { stream } |
| } |
| |
| <span class="doccomment">/// Returns the current read timeout. |
| </span><span class="kw">pub fn </span>read_timeout(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Duration> { |
| <span class="self">self</span>.stream.timeout() |
| } |
| |
| <span class="doccomment">/// Sets the read timeout. |
| /// |
| /// This can only be used before the stream is pinned; use |
| /// [`set_read_timeout_pinned`](Self::set_read_timeout_pinned) otherwise. |
| </span><span class="kw">pub fn </span>set_read_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.stream.set_timeout(timeout) |
| } |
| |
| <span class="doccomment">/// Sets the read timeout. |
| /// |
| /// This will reset any pending read timeout. Use [`set_read_timeout`](Self::set_read_timeout) instead if the stream |
| /// has not yet been pinned. |
| </span><span class="kw">pub fn </span>set_read_timeout_pinned(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.project().stream.set_timeout_pinned(timeout) |
| } |
| |
| <span class="doccomment">/// Returns the current write timeout. |
| </span><span class="kw">pub fn </span>write_timeout(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><Duration> { |
| <span class="self">self</span>.stream.get_ref().timeout() |
| } |
| |
| <span class="doccomment">/// Sets the write timeout. |
| /// |
| /// This can only be used before the stream is pinned; use |
| /// [`set_write_timeout_pinned`](Self::set_write_timeout_pinned) otherwise. |
| </span><span class="kw">pub fn </span>set_write_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.stream.get_mut().set_timeout(timeout) |
| } |
| |
| <span class="doccomment">/// Sets the write timeout. |
| /// |
| /// This will reset any pending write timeout. Use [`set_write_timeout`](Self::set_write_timeout) instead if the |
| /// stream has not yet been pinned. |
| </span><span class="kw">pub fn </span>set_write_timeout_pinned(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.project() |
| .stream |
| .get_pin_mut() |
| .set_timeout_pinned(timeout) |
| } |
| |
| <span class="doccomment">/// Returns a shared reference to the inner stream. |
| </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>S { |
| <span class="self">self</span>.stream.get_ref().get_ref() |
| } |
| |
| <span class="doccomment">/// Returns a mutable reference to the inner stream. |
| </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>S { |
| <span class="self">self</span>.stream.get_mut().get_mut() |
| } |
| |
| <span class="doccomment">/// Returns a pinned mutable reference to the inner stream. |
| </span><span class="kw">pub fn </span>get_pin_mut(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>) -> Pin<<span class="kw-2">&mut </span>S> { |
| <span class="self">self</span>.project().stream.get_pin_mut().get_pin_mut() |
| } |
| |
| <span class="doccomment">/// Consumes the stream, returning the inner stream. |
| </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -> S { |
| <span class="self">self</span>.stream.into_inner().into_inner() |
| } |
| } |
| |
| <span class="kw">impl</span><S> AsyncRead <span class="kw">for </span>TimeoutStream<S> |
| <span class="kw">where |
| </span>S: AsyncRead + AsyncWrite, |
| { |
| <span class="kw">fn </span>poll_read( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="self">self</span>.project().stream.poll_read(cx, buf) |
| } |
| } |
| |
| <span class="kw">impl</span><S> AsyncWrite <span class="kw">for </span>TimeoutStream<S> |
| <span class="kw">where |
| </span>S: AsyncRead + AsyncWrite, |
| { |
| <span class="kw">fn </span>poll_write( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="self">self</span>.project().stream.poll_write(cx, buf) |
| } |
| |
| <span class="kw">fn </span>poll_flush(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="self">self</span>.project().stream.poll_flush(cx) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="self">self</span>.project().stream.poll_shutdown(cx) |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| bufs: <span class="kw-2">&</span>[io::IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<io::Result<usize>> { |
| <span class="self">self</span>.project().stream.poll_write_vectored(cx, bufs) |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.stream.is_write_vectored() |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span>std::io::Write; |
| <span class="kw">use </span>std::net::TcpListener; |
| <span class="kw">use </span>std::thread; |
| <span class="kw">use </span>tokio::io::{AsyncReadExt, AsyncWriteExt}; |
| <span class="kw">use </span>tokio::net::TcpStream; |
| <span class="kw">use </span>tokio::pin; |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="kw">struct </span>DelayStream { |
| <span class="attribute">#[pin] |
| </span>sleep: Sleep, |
| } |
| } |
| |
| <span class="kw">impl </span>DelayStream { |
| <span class="kw">fn </span>new(until: Instant) -> <span class="self">Self </span>{ |
| DelayStream { |
| sleep: sleep_until(until), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>AsyncRead <span class="kw">for </span>DelayStream { |
| <span class="kw">fn </span>poll_read( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context, |
| _buf: <span class="kw-2">&mut </span>ReadBuf, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="kw">match </span><span class="self">self</span>.project().sleep.poll(cx) { |
| Poll::Ready(()) => Poll::Ready(<span class="prelude-val">Ok</span>(())), |
| Poll::Pending => Poll::Pending, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>AsyncWrite <span class="kw">for </span>DelayStream { |
| <span class="kw">fn </span>poll_write( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">match </span><span class="self">self</span>.project().sleep.poll(cx) { |
| Poll::Ready(()) => Poll::Ready(<span class="prelude-val">Ok</span>(buf.len())), |
| Poll::Pending => Poll::Pending, |
| } |
| } |
| |
| <span class="kw">fn </span>poll_flush(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, _cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, _cx: <span class="kw-2">&mut </span>Context) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) |
| } |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>read_timeout() { |
| <span class="kw">let </span>reader = DelayStream::new(Instant::now() + Duration::from_millis(<span class="number">500</span>)); |
| <span class="kw">let </span><span class="kw-2">mut </span>reader = TimeoutReader::new(reader); |
| reader.set_timeout(<span class="prelude-val">Some</span>(Duration::from_millis(<span class="number">100</span>))); |
| <span class="macro">pin!</span>(reader); |
| |
| <span class="kw">let </span>r = reader.read(<span class="kw-2">&mut </span>[<span class="number">0</span>]).<span class="kw">await</span>; |
| <span class="macro">assert_eq!</span>(r.err().unwrap().kind(), io::ErrorKind::TimedOut); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>read_ok() { |
| <span class="kw">let </span>reader = DelayStream::new(Instant::now() + Duration::from_millis(<span class="number">100</span>)); |
| <span class="kw">let </span><span class="kw-2">mut </span>reader = TimeoutReader::new(reader); |
| reader.set_timeout(<span class="prelude-val">Some</span>(Duration::from_millis(<span class="number">500</span>))); |
| <span class="macro">pin!</span>(reader); |
| |
| reader.read(<span class="kw-2">&mut </span>[<span class="number">0</span>]).<span class="kw">await</span>.unwrap(); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>write_timeout() { |
| <span class="kw">let </span>writer = DelayStream::new(Instant::now() + Duration::from_millis(<span class="number">500</span>)); |
| <span class="kw">let </span><span class="kw-2">mut </span>writer = TimeoutWriter::new(writer); |
| writer.set_timeout(<span class="prelude-val">Some</span>(Duration::from_millis(<span class="number">100</span>))); |
| <span class="macro">pin!</span>(writer); |
| |
| <span class="kw">let </span>r = writer.write(<span class="kw-2">&</span>[<span class="number">0</span>]).<span class="kw">await</span>; |
| <span class="macro">assert_eq!</span>(r.err().unwrap().kind(), io::ErrorKind::TimedOut); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>write_ok() { |
| <span class="kw">let </span>writer = DelayStream::new(Instant::now() + Duration::from_millis(<span class="number">100</span>)); |
| <span class="kw">let </span><span class="kw-2">mut </span>writer = TimeoutWriter::new(writer); |
| writer.set_timeout(<span class="prelude-val">Some</span>(Duration::from_millis(<span class="number">500</span>))); |
| <span class="macro">pin!</span>(writer); |
| |
| writer.write(<span class="kw-2">&</span>[<span class="number">0</span>]).<span class="kw">await</span>.unwrap(); |
| } |
| |
| <span class="attribute">#[tokio::test] |
| </span><span class="kw">async fn </span>tcp_read() { |
| <span class="kw">let </span>listener = TcpListener::bind(<span class="string">"127.0.0.1:0"</span>).unwrap(); |
| <span class="kw">let </span>addr = listener.local_addr().unwrap(); |
| |
| thread::spawn(<span class="kw">move </span>|| { |
| <span class="kw">let </span><span class="kw-2">mut </span>socket = listener.accept().unwrap().<span class="number">0</span>; |
| thread::sleep(Duration::from_millis(<span class="number">10</span>)); |
| socket.write_all(<span class="string">b"f"</span>).unwrap(); |
| thread::sleep(Duration::from_millis(<span class="number">500</span>)); |
| <span class="kw">let _ </span>= socket.write_all(<span class="string">b"f"</span>); <span class="comment">// this may hit an eof |
| </span>}); |
| |
| <span class="kw">let </span>s = TcpStream::connect(<span class="kw-2">&</span>addr).<span class="kw">await</span>.unwrap(); |
| <span class="kw">let </span><span class="kw-2">mut </span>s = TimeoutStream::new(s); |
| s.set_read_timeout(<span class="prelude-val">Some</span>(Duration::from_millis(<span class="number">100</span>))); |
| <span class="macro">pin!</span>(s); |
| s.read(<span class="kw-2">&mut </span>[<span class="number">0</span>]).<span class="kw">await</span>.unwrap(); |
| <span class="kw">let </span>r = s.read(<span class="kw-2">&mut </span>[<span class="number">0</span>]).<span class="kw">await</span>; |
| |
| <span class="kw">match </span>r { |
| <span class="prelude-val">Ok</span>(<span class="kw">_</span>) => <span class="macro">panic!</span>(<span class="string">"unexpected success"</span>), |
| <span class="prelude-val">Err</span>(<span class="kw-2">ref </span>e) <span class="kw">if </span>e.kind() == io::ErrorKind::TimedOut => (), |
| <span class="prelude-val">Err</span>(e) => <span class="macro">panic!</span>(<span class="string">"{:?}"</span>, e), |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="tokio_io_timeout" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
