<!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="API documentation for the Rust `ChildStdin` struct in crate `std`."><meta name="keywords" content="rust, rustlang, rust-lang, ChildStdin"><title>std::process::ChildStdin - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../std/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a><p class='location'>Struct ChildStdin</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Write">Write</a><a href="#impl-Debug">Debug</a><a href="#impl-From%3CChildStdin%3E">From<ChildStdin></a><a href="#impl-AsRawFd">AsRawFd</a><a href="#impl-IntoRawFd">IntoRawFd</a><a href="#impl-AsRawHandle">AsRawHandle</a><a href="#impl-IntoRawHandle">IntoRawHandle</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a></div></div><p class='location'><a href='../index.html'>std</a>::<wbr><a href='index.html'>process</a></p><script>window.sidebarCurrent = {name: 'ChildStdin', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>std</a>::<wbr><a href='index.html'>process</a>::<wbr><a class="struct" href=''>ChildStdin</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/std/process.rs.html#228-230' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust struct'>pub struct ChildStdin { /* fields omitted */ }</pre></div><div class='docblock'><p>A handle to a child process's standard input (stdin).</p>
<p>This struct is used in the <a href="struct.Child.html#structfield.stdin"><code>stdin</code></a> field on <a href="struct.Child.html"><code>Child</code></a>.</p>
<p>When an instance of <code>ChildStdin</code> is <a href="../ops/trait.Drop.html">dropped</a>, the <code>ChildStdin</code>'s underlying
file handle will be closed. If the child process was blocked on input prior
to being dropped, it will become unblocked after dropping.</p>
</div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
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<div id='implementations-list'><h3 id='impl-Write' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-Write' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/process.rs.html#233-241' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.write' class="method"><span id='write.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/io/trait.Write.html#tymethod.write' class='fnname'>write</a>(&mut self, buf: <a class="primitive" href="../primitive.slice.html">&[</a><a class="primitive" href="../primitive.u8.html">u8</a><a class="primitive" href="../primitive.slice.html">]</a>) -> <a class="type" href="../../std/io/type.Result.html" title="type std::io::Result">Result</a><<a class="primitive" href="../primitive.usize.html">usize</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/process.rs.html#234-236' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Write a buffer into this object, returning how many bytes were written. <a href="../../std/io/trait.Write.html#tymethod.write">Read more</a></p>
</div><h4 id='method.flush' class="method"><span id='flush.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/io/trait.Write.html#tymethod.flush' class='fnname'>flush</a>(&mut self) -> <a class="type" href="../../std/io/type.Result.html" title="type std::io::Result">Result</a><<a class="primitive" href="../primitive.unit.html">()</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/process.rs.html#238-240' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Flush this output stream, ensuring that all intermediately buffered contents reach their destination. <a href="../../std/io/trait.Write.html#tymethod.flush">Read more</a></p>
</div><h4 id='method.write_all' class="method"><span id='write_all.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/io/trait.Write.html#method.write_all' class='fnname'>write_all</a>(&mut self, buf: <a class="primitive" href="../primitive.slice.html">&[</a><a class="primitive" href="../primitive.u8.html">u8</a><a class="primitive" href="../primitive.slice.html">]</a>) -> <a class="type" href="../../std/io/type.Result.html" title="type std::io::Result">Result</a><<a class="primitive" href="../primitive.unit.html">()</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/io/mod.rs.html#1109-1120' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Attempts to write an entire buffer into this write. <a href="../../std/io/trait.Write.html#method.write_all">Read more</a></p>
</div><h4 id='method.write_fmt' class="method"><span id='write_fmt.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/io/trait.Write.html#method.write_fmt' class='fnname'>write_fmt</a>(&mut self, fmt: <a class="struct" href="../../std/fmt/struct.Arguments.html" title="struct std::fmt::Arguments">Arguments</a>) -> <a class="type" href="../../std/io/type.Result.html" title="type std::io::Result">Result</a><<a class="primitive" href="../primitive.unit.html">()</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/io/mod.rs.html#1161-1193' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Writes a formatted string into this writer, returning any error encountered. <a href="../../std/io/trait.Write.html#method.write_fmt">Read more</a></p>
</div><h4 id='method.by_ref' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="primitive" href="../primitive.reference.html">&'a mut </a>I</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="../primitive.reference.html">&'a mut </a>I</h3><code class="content"><span class="where fmt-newline">impl<'a, I> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="primitive" href="../primitive.reference.html">&'a mut </a>I <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <I as <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a>>::<a class="type" href="../../std/iter/trait.Iterator.html#associatedtype.Item" title="type std::iter::Iterator::Item">Item</a>;</span><span class="where fmt-newline">impl<'a, R: <a class="trait" href="../../std/io/trait.Read.html" title="trait std::io::Read">Read</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>> <a class="trait" href="../../std/io/trait.Read.html" title="trait std::io::Read">Read</a> for <a class="primitive" href="../primitive.reference.html">&'a mut </a>R</span><span class="where fmt-newline">impl<'a, W: <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>> <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="primitive" href="../primitive.reference.html">&'a mut </a>W</span></code></div></div><span id='by_ref.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/io/trait.Write.html#method.by_ref' class='fnname'>by_ref</a>(&mut self) -> <a class="primitive" href="../primitive.reference.html">&mut </a>Self <span class="where fmt-newline">where<br> Self: <a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/io/mod.rs.html#1217' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Creates a "by reference" adaptor for this instance of <code>Write</code>. <a href="../../std/io/trait.Write.html#method.by_ref">Read more</a></p>
</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/fmt/trait.Debug.html" title="trait std::fmt::Debug">Debug</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-Debug' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.16.0'>1.16.0</div><a class='srclink' href='../../src/std/process.rs.html#258-262' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="../../std/fmt/struct.Formatter.html" title="struct std::fmt::Formatter">Formatter</a>) -> <a class="type" href="../../std/fmt/type.Result.html" title="type std::fmt::Result">Result</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/process.rs.html#259-261' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Formats the value using the given formatter. <a href="../../std/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id='impl-From%3CChildStdin%3E' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/convert/trait.From.html" title="trait std::convert::From">From</a><<a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a>> for <a class="struct" href="../../std/process/struct.Stdio.html" title="struct std::process::Stdio">Stdio</a></code><a href='#impl-From%3CChildStdin%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.20.0'>1.20.0</div><a class='srclink' href='../../src/std/process.rs.html#975-979' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.from' class="method"><span id='from.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(child: <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a>) -> <a class="struct" href="../../std/process/struct.Stdio.html" title="struct std::process::Stdio">Stdio</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/process.rs.html#976-978' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs the conversion.</p>
</div></div><h3 id='impl-AsRawFd' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/os/unix/io/trait.AsRawFd.html" title="trait std::os::unix::io::AsRawFd">AsRawFd</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-AsRawFd' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.2.0'>1.2.0</div><a class='srclink' href='../../src/std/sys/unix/ext/process.rs.html#158-162' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.as_raw_fd' class="method"><span id='as_raw_fd.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/os/unix/io/trait.AsRawFd.html#tymethod.as_raw_fd' class='fnname'>as_raw_fd</a>(&self) -> <a class="type" href="../../std/os/unix/io/type.RawFd.html" title="type std::os::unix::io::RawFd">RawFd</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/sys/unix/ext/process.rs.html#159-161' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Extracts the raw file descriptor. <a href="../../std/os/unix/io/trait.AsRawFd.html#tymethod.as_raw_fd">Read more</a></p>
</div></div><h3 id='impl-IntoRawFd' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/os/unix/io/trait.IntoRawFd.html" title="trait std::os::unix::io::IntoRawFd">IntoRawFd</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-IntoRawFd' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.4.0'>1.4.0</div><a class='srclink' href='../../src/std/sys/unix/ext/process.rs.html#179-183' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.into_raw_fd' class="method"><span id='into_raw_fd.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/os/unix/io/trait.IntoRawFd.html#tymethod.into_raw_fd' class='fnname'>into_raw_fd</a>(self) -> <a class="type" href="../../std/os/unix/io/type.RawFd.html" title="type std::os::unix::io::RawFd">RawFd</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/sys/unix/ext/process.rs.html#180-182' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Consumes this object, returning the raw underlying file descriptor. <a href="../../std/os/unix/io/trait.IntoRawFd.html#tymethod.into_raw_fd">Read more</a></p>
</div></div><h3 id='impl-AsRawHandle' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/os/windows/io/trait.AsRawHandle.html" title="trait std::os::windows::io::AsRawHandle">AsRawHandle</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-AsRawHandle' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.2.0'>1.2.0</div><a class='srclink' href='../../src/std/sys/windows/ext/process.rs.html#44-48' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.as_raw_handle' class="method"><span id='as_raw_handle.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/os/windows/io/trait.AsRawHandle.html#tymethod.as_raw_handle' class='fnname'>as_raw_handle</a>(&self) -> <a class="type" href="../../std/os/windows/io/type.RawHandle.html" title="type std::os::windows::io::RawHandle">RawHandle</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/sys/windows/ext/process.rs.html#45-47' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='stability'><div class='stab portability'>This is supported on <strong>Windows</strong> only.</div></div><div class='docblock'><p>Extracts the raw handle, without taking any ownership.</p>
</div></div><h3 id='impl-IntoRawHandle' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/os/windows/io/trait.IntoRawHandle.html" title="trait std::os::windows::io::IntoRawHandle">IntoRawHandle</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-IntoRawHandle' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.4.0'>1.4.0</div><a class='srclink' href='../../src/std/sys/windows/ext/process.rs.html#65-69' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.into_raw_handle' class="method"><span id='into_raw_handle.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../std/os/windows/io/trait.IntoRawHandle.html#tymethod.into_raw_handle' class='fnname'>into_raw_handle</a>(self) -> <a class="type" href="../../std/os/windows/io/type.RawHandle.html" title="type std::os::windows::io::RawHandle">RawHandle</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/std/sys/windows/ext/process.rs.html#66-68' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='stability'><div class='stab portability'>This is supported on <strong>Windows</strong> only.</div></div><div class='docblock'><p>Consumes this object, returning the raw underlying handle. <a href="../../std/os/windows/io/trait.IntoRawHandle.html#tymethod.into_raw_handle">Read more</a></p>
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Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a>
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<h3 id='impl-Send' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/marker/trait.Send.html" title="trait std::marker::Send">Send</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-Send' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../std/marker/trait.Sync.html" title="trait std::marker::Sync">Sync</a> for <a class="struct" href="../../std/process/struct.ChildStdin.html" title="struct std::process::ChildStdin">ChildStdin</a></code><a href='#impl-Sync' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../";window.currentCrate = "std";</script><script src="../../aliases.js"></script><script src="../../main.js"></script><script defer src="../../search-index.js"></script></body></html>
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