Files
GopherGate/target/doc/tokio/io/trait.AsyncBufRead.html
2026-02-26 12:00:21 -05:00

63 lines
27 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<!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="Reads bytes asynchronously."><title>AsyncBufRead in tokio::io - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">AsyncBufRead</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../tokio/index.html">tokio</a><span class="version">1.49.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Async<wbr>BufRead</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.consume" title="consume">consume</a></li><li><a href="#tymethod.poll_fill_buf" title="poll_fill_buf">poll_fill_buf</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-AsyncBufRead-for-%26%5Bu8%5D" title="&#38;[u8]">&#38;[u8]</a></li><li><a href="#impl-AsyncBufRead-for-%26mut+T" title="&#38;mut T">&#38;mut T</a></li><li><a href="#impl-AsyncBufRead-for-Box%3CT%3E" title="Box&#60;T&#62;">Box&#60;T&#62;</a></li><li><a href="#impl-AsyncBufRead-for-Cursor%3CT%3E" title="Cursor&#60;T&#62;">Cursor&#60;T&#62;</a></li><li><a href="#impl-AsyncBufRead-for-Pin%3CP%3E" title="Pin&#60;P&#62;">Pin&#60;P&#62;</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In tokio::<wbr>io</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">tokio</a>::<wbr><a href="index.html">io</a></div><h1>Trait <span class="trait">Async<wbr>BufRead</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/tokio/io/async_buf_read.rs.html#23-63">Source</a> </span></div><pre class="rust item-decl"><code>pub trait AsyncBufRead: <a class="trait" href="trait.AsyncRead.html" title="trait tokio::io::AsyncRead">AsyncRead</a> {
// Required methods
fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;;
<span class="item-spacer"></span> fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>);
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Reads bytes asynchronously.</p>
<p>This trait is analogous to <a href="https://doc.rust-lang.org/1.93.1/std/io/trait.BufRead.html" title="trait std::io::BufRead"><code>std::io::BufRead</code></a>, but integrates with
the asynchronous task system. In particular, the <a href="trait.AsyncBufRead.html#tymethod.poll_fill_buf" title="method tokio::io::AsyncBufRead::poll_fill_buf"><code>poll_fill_buf</code></a> method,
unlike <a href="https://doc.rust-lang.org/1.93.1/std/io/trait.BufRead.html#tymethod.fill_buf" title="method std::io::BufRead::fill_buf"><code>BufRead::fill_buf</code></a>, will automatically queue the current task for wakeup
and return if data is not yet available, rather than blocking the calling
thread.</p>
<p>Utilities for working with <code>AsyncBufRead</code> values are provided by
<a href="trait.AsyncBufReadExt.html" title="trait tokio::io::AsyncBufReadExt"><code>AsyncBufReadExt</code></a>.</p>
</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.poll_fill_buf" class="method"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#45">Source</a><h4 class="code-header">fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;</h4></section></summary><div class="docblock"><p>Attempts to return the contents of the internal buffer, filling it with more data
from the inner reader if it is empty.</p>
<p>On success, returns <code>Poll::Ready(Ok(buf))</code>.</p>
<p>If no data is available for reading, the method returns
<code>Poll::Pending</code> and arranges for the current task (via
<code>cx.waker().wake_by_ref()</code>) to receive a notification when the object becomes
readable or is closed.</p>
<p>This function is a lower-level call. It needs to be paired with the
<a href="trait.AsyncBufRead.html#tymethod.consume" title="method tokio::io::AsyncBufRead::consume"><code>consume</code></a> method to function properly. When calling this
method, none of the contents will be “read” in the sense that later
calling <a href="trait.AsyncRead.html#tymethod.poll_read" title="method tokio::io::AsyncRead::poll_read"><code>poll_read</code></a> may return the same contents. As such, <a href="trait.AsyncBufRead.html#tymethod.consume" title="method tokio::io::AsyncBufRead::consume"><code>consume</code></a> must
be called with the number of bytes that are consumed from this buffer to
ensure that the bytes are never returned twice.</p>
<p>An empty buffer returned indicates that the stream has reached EOF.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.consume" class="method"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#62">Source</a><h4 class="code-header">fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Tells this buffer that <code>amt</code> bytes have been consumed from the buffer,
so they should no longer be returned in calls to <a href="trait.AsyncRead.html#tymethod.poll_read" title="method tokio::io::AsyncRead::poll_read"><code>poll_read</code></a>.</p>
<p>This function is a lower-level call. It needs to be paired with the
<a href="trait.AsyncBufRead.html#tymethod.poll_fill_buf" title="method tokio::io::AsyncBufRead::poll_fill_buf"><code>poll_fill_buf</code></a> method to function properly. This function does
not perform any I/O, it simply informs this object that some amount of
its buffer, returned from <a href="trait.AsyncBufRead.html#tymethod.poll_fill_buf" title="method tokio::io::AsyncBufRead::poll_fill_buf"><code>poll_fill_buf</code></a>, has been consumed and should
no longer be returned. As such, this function may do odd things if
<a href="trait.AsyncBufRead.html#tymethod.poll_fill_buf" title="method tokio::io::AsyncBufRead::poll_fill_buf"><code>poll_fill_buf</code></a> isnt called before calling it.</p>
<p>The <code>amt</code> must be <code>&lt;=</code> the number of bytes in the buffer returned by
<a href="trait.AsyncBufRead.html#tymethod.poll_fill_buf" title="method tokio::io::AsyncBufRead::poll_fill_buf"><code>poll_fill_buf</code></a>.</p>
</div></details></div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-AsyncBufRead-for-%26%5Bu8%5D" class="impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#99-107">Source</a><a href="#impl-AsyncBufRead-for-%26%5Bu8%5D" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for &amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]</h3></section></summary><div class="impl-items"><section id="method.poll_fill_buf" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#100-102">Source</a><a href="#method.poll_fill_buf" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
_cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;</h4></section><section id="method.consume" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#104-106">Source</a><a href="#method.consume" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>)</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-AsyncBufRead-for-Pin%3CP%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#85-97">Source</a><a href="#impl-AsyncBufRead-for-Pin%3CP%3E" class="anchor">§</a><h3 class="code-header">impl&lt;P&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;P&gt;<div class="where">where
P: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/ops/deref/trait.DerefMut.html" title="trait core::ops::deref::DerefMut">DerefMut</a>,
P::<a class="associatedtype" href="https://doc.rust-lang.org/1.93.1/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a>: <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a>,</div></h3></section></summary><div class="impl-items"><section id="method.poll_fill_buf-1" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#90-92">Source</a><a href="#method.poll_fill_buf-1" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;</h4></section><section id="method.consume-1" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#94-96">Source</a><a href="#method.consume-1" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>)</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-AsyncBufRead-for-Cursor%3CT%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#109-117">Source</a><a href="#impl-AsyncBufRead-for-Cursor%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a>&lt;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt; + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/io/cursor/struct.Cursor.html" title="struct std::io::cursor::Cursor">Cursor</a>&lt;T&gt;</h3></section></summary><div class="impl-items"><section id="method.poll_fill_buf-2" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#110-112">Source</a><a href="#method.poll_fill_buf-2" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
_cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;</h4></section><section id="method.consume-2" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#114-116">Source</a><a href="#method.consume-2" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>)</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-AsyncBufRead-for-%26mut+T" class="impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#81-83">Source</a><a href="#impl-AsyncBufRead-for-%26mut+T" class="anchor">§</a><h3 class="code-header">impl&lt;T: ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;mut T</a></h3></section></summary><div class="impl-items"><section id="method.poll_fill_buf-3" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#82">Source</a><a href="#method.poll_fill_buf-3" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;</h4></section><section id="method.consume-3" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#82">Source</a><a href="#method.consume-3" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>)</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-AsyncBufRead-for-Box%3CT%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#77-79">Source</a><a href="#impl-AsyncBufRead-for-Box%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T: ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;</h3></section></summary><div class="impl-items"><section id="method.poll_fill_buf-4" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#78">Source</a><a href="#method.poll_fill_buf-4" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.poll_fill_buf" class="fn">poll_fill_buf</a>(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;,
cx: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a>&lt;'_&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a>&lt;<a class="type" href="https://doc.rust-lang.org/1.93.1/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;&amp;[<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.u8.html">u8</a>]&gt;&gt;</h4></section><section id="method.consume-4" class="method trait-impl"><a class="src rightside" href="../../src/tokio/io/async_buf_read.rs.html#78">Source</a><a href="#method.consume-4" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.consume" class="fn">consume</a>(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/pin/struct.Pin.html" title="struct core::pin::Pin">Pin</a>&lt;&amp;mut Self&gt;, amt: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.usize.html">usize</a>)</h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><section id="impl-AsyncBufRead-for-Empty" class="impl"><a class="src rightside" href="../../src/tokio/io/util/empty.rs.html#80-90">Source</a><a href="#impl-AsyncBufRead-for-Empty" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.Empty.html" title="struct tokio::io::Empty">Empty</a></h3></section><section id="impl-AsyncBufRead-for-Join%3CR,+W%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/join.rs.html#119-130">Source</a><a href="#impl-AsyncBufRead-for-Join%3CR,+W%3E" class="anchor">§</a><h3 class="code-header">impl&lt;R, W&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.Join.html" title="struct tokio::io::Join">Join</a>&lt;R, W&gt;<div class="where">where
R: <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a>,</div></h3></section><section id="impl-AsyncBufRead-for-Take%3CR%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/util/take.rs.html#107-128">Source</a><a href="#impl-AsyncBufRead-for-Take%3CR%3E" class="anchor">§</a><h3 class="code-header">impl&lt;R: <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.Take.html" title="struct tokio::io::Take">Take</a>&lt;R&gt;</h3></section><section id="impl-AsyncBufRead-for-BufReader%3CR%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/util/buf_reader.rs.html#122-144">Source</a><a href="#impl-AsyncBufRead-for-BufReader%3CR%3E" class="anchor">§</a><h3 class="code-header">impl&lt;R: <a class="trait" href="trait.AsyncRead.html" title="trait tokio::io::AsyncRead">AsyncRead</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.BufReader.html" title="struct tokio::io::BufReader">BufReader</a>&lt;R&gt;</h3></section><section id="impl-AsyncBufRead-for-BufStream%3CRW%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/util/buf_stream.rs.html#189-197">Source</a><a href="#impl-AsyncBufRead-for-BufStream%3CRW%3E" class="anchor">§</a><h3 class="code-header">impl&lt;RW: <a class="trait" href="trait.AsyncRead.html" title="trait tokio::io::AsyncRead">AsyncRead</a> + <a class="trait" href="trait.AsyncWrite.html" title="trait tokio::io::AsyncWrite">AsyncWrite</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.BufStream.html" title="struct tokio::io::BufStream">BufStream</a>&lt;RW&gt;</h3></section><section id="impl-AsyncBufRead-for-Chain%3CT,+U%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/util/chain.rs.html#107-134">Source</a><a href="#impl-AsyncBufRead-for-Chain%3CT,+U%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.Chain.html" title="struct tokio::io::Chain">Chain</a>&lt;T, U&gt;<div class="where">where
T: <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a>,
U: <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a>,</div></h3></section><section id="impl-AsyncBufRead-for-BufWriter%3CW%3E" class="impl"><a class="src rightside" href="../../src/tokio/io/util/buf_writer.rs.html#279-287">Source</a><a href="#impl-AsyncBufRead-for-BufWriter%3CW%3E" class="anchor">§</a><h3 class="code-header">impl&lt;W: <a class="trait" href="trait.AsyncWrite.html" title="trait tokio::io::AsyncWrite">AsyncWrite</a> + <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a>&gt; <a class="trait" href="trait.AsyncBufRead.html" title="trait tokio::io::AsyncBufRead">AsyncBufRead</a> for <a class="struct" href="struct.BufWriter.html" title="struct tokio::io::BufWriter">BufWriter</a>&lt;W&gt;</h3></section></div><script src="../../trait.impl/tokio/io/async_buf_read/trait.AsyncBufRead.js" data-ignore-extern-crates="alloc,core,std" async></script></section></div></main></body></html>