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<!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="The writable half of an object returned from `AsyncRead::split`."><meta name="keywords" content="rust, rustlang, rust-lang, WriteHalf"><title>WriteHalf in futures::io - Rust</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 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class="sidebar-logo" href="../../futures/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../futures/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">WriteHalf</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.reunite">reunite</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-AsyncWrite-for-WriteHalf%3CW%3E">AsyncWrite</a></li><li><a href="#impl-Debug-for-WriteHalf%3CT%3E">Debug</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-WriteHalf%3CT%3E">!RefUnwindSafe</a></li><li><a href="#impl-Send-for-WriteHalf%3CT%3E">Send</a></li><li><a href="#impl-Sync-for-WriteHalf%3CT%3E">Sync</a></li><li><a href="#impl-Unpin-for-WriteHalf%3CT%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-WriteHalf%3CT%3E">!UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-WriteHalf%3CT%3E">Any</a></li><li><a href="#impl-AsyncWriteExt-for-WriteHalf%3CT%3E">AsyncWriteExt</a></li><li><a href="#impl-Borrow%3CT%3E-for-WriteHalf%3CT%3E">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-WriteHalf%3CT%3E">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-WriteHalf%3CT%3E">From&lt;T&gt;</a></li><li><a href="#impl-Into%3CU%3E-for-WriteHalf%3CT%3E">Into&lt;U&gt;</a></li><li><a href="#impl-TryFrom%3CU%3E-for-WriteHalf%3CT%3E">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-WriteHalf%3CT%3E">TryInto&lt;U&gt;</a></li></ul></section><h2><a href="index.html">In futures::io</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><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="main-heading"><h1 class="fqn">Struct <a href="../index.html">futures</a>::<wbr><a href="index.html">io</a>::<wbr><a class="struct" href="#">WriteHalf</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../src/futures_util/io/split.rs.html#17">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct WriteHalf&lt;T&gt; { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>The writable half of an object returned from <code>AsyncRead::split</code>.</p>
</div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-WriteHalf%3CT%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#45">source</a><a href="#impl-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: Unpin,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.reunite" class="method has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#49">source</a><h4 class="code-header">pub fn <a href="#method.reunite" class="fnname">reunite</a>(self, other: <a class="struct" href="struct.ReadHalf.html" title="struct futures::io::ReadHalf">ReadHalf</a>&lt;T&gt;) -&gt; Result&lt;T, <a class="struct" href="struct.ReuniteError.html" title="struct futures::io::ReuniteError">ReuniteError</a>&lt;T&gt;&gt;</h4></section></summary><div class="docblock"><p>Attempts to put the two “halves” of a split <code>AsyncRead + AsyncWrite</code> back
together. Succeeds only if the <code>ReadHalf&lt;T&gt;</code> and <code>WriteHalf&lt;T&gt;</code> are
a matching pair originating from the same call to <code>AsyncReadExt::split</code>.</p>
</div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-AsyncWrite-for-WriteHalf%3CW%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#72">source</a><a href="#impl-AsyncWrite-for-WriteHalf%3CW%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;W&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll_write" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#73-77">source</a><a href="#method.poll_write" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWrite.html#tymethod.poll_write" class="fnname">poll_write</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self: Pin&lt;&amp;mut <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;W&gt;&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;buf: &amp;[u8]<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;Result&lt;usize, <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;&gt;</h4></section></summary><div class='docblock'>Attempt to write bytes from <code>buf</code> into the object. <a href="trait.AsyncWrite.html#tymethod.poll_write">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll_write_vectored" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#81-85">source</a><a href="#method.poll_write_vectored" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWrite.html#method.poll_write_vectored" class="fnname">poll_write_vectored</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self: Pin&lt;&amp;mut <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;W&gt;&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;bufs: &amp;[<a class="struct" href="struct.IoSlice.html" title="struct futures::io::IoSlice">IoSlice</a>&lt;'_&gt;]<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;Result&lt;usize, <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;&gt;</h4></section></summary><div class='docblock'>Attempt to write bytes from <code>bufs</code> into the object using vectored
IO operations. <a href="trait.AsyncWrite.html#method.poll_write_vectored">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll_flush" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#89">source</a><a href="#method.poll_flush" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWrite.html#tymethod.poll_flush" class="fnname">poll_flush</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self: Pin&lt;&amp;mut <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;W&gt;&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;Result&lt;(), <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;&gt;</h4></section></summary><div class='docblock'>Attempt to flush the object, ensuring that any buffered data reach
their destination. <a href="trait.AsyncWrite.html#tymethod.poll_flush">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll_close" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#93">source</a><a href="#method.poll_close" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWrite.html#tymethod.poll_close" class="fnname">poll_close</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;self: Pin&lt;&amp;mut <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;W&gt;&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;cx: &amp;mut <a class="struct" href="../task/struct.Context.html" title="struct futures::task::Context">Context</a>&lt;'_&gt;<br>) -&gt; <a class="enum" href="../task/enum.Poll.html" title="enum futures::task::Poll">Poll</a>&lt;Result&lt;(), <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;&gt;</h4></section></summary><div class='docblock'>Attempt to close the object. <a href="trait.AsyncWrite.html#tymethod.poll_close">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-WriteHalf%3CT%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#16">source</a><a href="#impl-Debug-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Debug for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: Debug,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/split.rs.html#16">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&amp;self, f: &amp;mut Formatter&lt;'_&gt;) -&gt; Result&lt;(), Error&gt;</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; !RefUnwindSafe for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;</h3></section><section id="impl-Send-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-Send-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Send for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: Send,</span></h3></section><section id="impl-Sync-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-Sync-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Sync for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: Send,</span></h3></section><section id="impl-Unpin-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-Unpin-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Unpin for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;</h3></section><section id="impl-UnwindSafe-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; !UnwindSafe for <a class="struct" href="struct.WriteHalf.html" title="struct futures::io::WriteHalf">WriteHalf</a>&lt;T&gt;</h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-Any-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Any for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&amp;self) -&gt; TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-AsyncWriteExt-for-WriteHalf%3CT%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#592">source</a><a href="#impl-AsyncWriteExt-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;W&gt; <a class="trait" href="trait.AsyncWriteExt.html" title="trait futures::io::AsyncWriteExt">AsyncWriteExt</a> for W<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.flush" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#424-426">source</a><a href="#method.flush" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWriteExt.html#method.flush" class="fnname">flush</a>(&amp;mut self) -&gt; <a class="struct" href="struct.Flush.html" title="struct futures::io::Flush">Flush</a>&lt;'_, Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Flush.html" title="struct futures::io::Flush">Flush</a>&lt;'_, W&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;W&gt; <a class="trait" href="../future/trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Flush.html" title="struct futures::io::Flush">Flush</a>&lt;'_, W&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> + Unpin + ?Sized,</span></span><span class="where fmt-newline"> type <a href="../future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = Result&lt;(), <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: Unpin,</span></h4></section></summary><div class='docblock'>Creates a future which will entirely flush this <code>AsyncWrite</code>. <a href="trait.AsyncWriteExt.html#method.flush">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.close" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#432-434">source</a><a href="#method.close" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWriteExt.html#method.close" class="fnname">close</a>(&amp;mut self) -&gt; <a class="struct" href="struct.Close.html" title="struct futures::io::Close">Close</a>&lt;'_, Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Close.html" title="struct futures::io::Close">Close</a>&lt;'_, W&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;W&gt; <a class="trait" href="../future/trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Close.html" title="struct futures::io::Close">Close</a>&lt;'_, W&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> + Unpin + ?Sized,</span></span><span class="where fmt-newline"> type <a href="../future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = Result&lt;(), <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: Unpin,</span></h4></section></summary><div class='docblock'>Creates a future which will entirely close this <code>AsyncWrite</code>.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#443-445">source</a><a href="#method.write" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWriteExt.html#method.write" class="fnname">write</a>(&amp;'a mut self, buf: &amp;'a [u8]) -&gt; <a class="struct" href="struct.Write.html" title="struct futures::io::Write">Write</a>&lt;'a, Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.Write.html" title="struct futures::io::Write">Write</a>&lt;'_, W&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;W&gt; <a class="trait" href="../future/trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.Write.html" title="struct futures::io::Write">Write</a>&lt;'_, W&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> + Unpin + ?Sized,</span></span><span class="where fmt-newline"> type <a href="../future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = Result&lt;usize, <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: Unpin,</span></h4></section></summary><div class='docblock'>Creates a future which will write bytes from <code>buf</code> into the object. <a href="trait.AsyncWriteExt.html#method.write">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_vectored" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#455-457">source</a><a href="#method.write_vectored" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWriteExt.html#method.write_vectored" class="fnname">write_vectored</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;'a mut self,<br>&nbsp;&nbsp;&nbsp;&nbsp;bufs: &amp;'a [<a class="struct" href="struct.IoSlice.html" title="struct futures::io::IoSlice">IoSlice</a>&lt;'a&gt;]<br>) -&gt; <a class="struct" href="struct.WriteVectored.html" title="struct futures::io::WriteVectored">WriteVectored</a>&lt;'a, Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.WriteVectored.html" title="struct futures::io::WriteVectored">WriteVectored</a>&lt;'_, W&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;W&gt; <a class="trait" href="../future/trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.WriteVectored.html" title="struct futures::io::WriteVectored">WriteVectored</a>&lt;'_, W&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> + Unpin + ?Sized,</span></span><span class="where fmt-newline"> type <a href="../future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = Result&lt;usize, <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: Unpin,</span></h4></section></summary><div class='docblock'>Creates a future which will write bytes from <code>bufs</code> into the object using vectored
IO operations. <a href="trait.AsyncWriteExt.html#method.write_vectored">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_all" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#482-484">source</a><a href="#method.write_all" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWriteExt.html#method.write_all" class="fnname">write_all</a>(&amp;'a mut self, buf: &amp;'a [u8]) -&gt; <a class="struct" href="struct.WriteAll.html" title="struct futures::io::WriteAll">WriteAll</a>&lt;'a, Self&gt;<span class="notable-traits"><span class="notable-traits-tooltip"><span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.WriteAll.html" title="struct futures::io::WriteAll">WriteAll</a>&lt;'_, W&gt;</span><code class="content"><span class="where fmt-newline">impl&lt;W&gt; <a class="trait" href="../future/trait.Future.html" title="trait futures::future::Future">Future</a> for <a class="struct" href="struct.WriteAll.html" title="struct futures::io::WriteAll">WriteAll</a>&lt;'_, W&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="trait.AsyncWrite.html" title="trait futures::io::AsyncWrite">AsyncWrite</a> + Unpin + ?Sized,</span></span><span class="where fmt-newline"> type <a href="../future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = Result&lt;(), <a class="struct" href="struct.Error.html" title="struct futures::io::Error">Error</a>&gt;;</span></code></span></span></span></span><span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: Unpin,</span></h4></section></summary><div class='docblock'>Write data into this object. <a href="trait.AsyncWriteExt.html#method.write_all">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into_sink" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/futures_util/io/mod.rs.html#584-586">source</a><a href="#method.into_sink" class="anchor"></a><h4 class="code-header">fn <a href="trait.AsyncWriteExt.html#method.into_sink" class="fnname">into_sink</a>&lt;Item&gt;(self) -&gt; <a class="struct" href="struct.IntoSink.html" title="struct futures::io::IntoSink">IntoSink</a>&lt;Self, Item&gt;<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Item: AsRef&lt;[u8]&gt;,</span></h4></section></summary><div class='docblock'>Allow using an <a href="trait.AsyncWrite.html" title="AsyncWrite"><code>AsyncWrite</code></a> as a <a href="../sink/trait.Sink.html"><code>Sink</code></a><code>&lt;Item: AsRef&lt;[u8]&gt;&gt;</code>. <a href="trait.AsyncWriteExt.html#method.into_sink">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; Borrow&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&amp;self) -&gt; &amp;T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; BorrowMut&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&amp;mut self) -&gt; &amp;mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; From&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; Into&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: From&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code>[From]&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; TryFrom&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: Into&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -&gt; Result&lt;T, &lt;T as TryFrom&lt;U&gt;&gt;::Error&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-WriteHalf%3CT%3E" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-WriteHalf%3CT%3E" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; TryInto&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: TryFrom&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = &lt;U as TryFrom&lt;T&gt;&gt;::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -&gt; Result&lt;U, &lt;U as TryFrom&lt;T&gt;&gt;::Error&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="futures" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>