<!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 `FromRawFd` trait in crate `std`."> <meta name="keywords" content="rust, rustlang, rust-lang, FromRawFd"> <title>std::os::unix::io::FromRawFd - 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="../../../../main.css" id="themeStyle"> <script src="../../../../storage.js"></script> <link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"> </head> <body class="rustdoc trait"> <!--[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'>Trait FromRawFd</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.from_raw_fd">from_raw_fd</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../../index.html'>std</a>::<wbr><a href='../../index.html'>os</a>::<wbr><a href='../index.html'>unix</a>::<wbr><a href='index.html'>io</a></p><script>window.sidebarCurrent = {name: 'FromRawFd', ty: 'trait', 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"> </div> </form> </nav> <section id='main' class="content"> <h1 class='fqn'><span class='in-band'>Trait <a href='../../../index.html'>std</a>::<wbr><a href='../../index.html'>os</a>::<wbr><a href='../index.html'>unix</a>::<wbr><a href='index.html'>io</a>::<wbr><a class="trait" href=''>FromRawFd</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.1.0'>1.1.0</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/sys/unix/ext/io.rs.html#46-61' title='goto source code'>[src]</a></span></h1> <pre class='rust trait'>pub trait FromRawFd { unsafe fn <a href='#tymethod.from_raw_fd' class='fnname'>from_raw_fd</a>(fd: <a class="type" href="../../../../std/os/unix/io/type.RawFd.html" title="type std::os::unix::io::RawFd">RawFd</a>) -> Self; }</pre><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>A trait to express the ability to construct an object from a raw file descriptor.</p> </div> <h2 id='required-methods' class='small-section-header'> Required Methods<a href='#required-methods' class='anchor'></a> </h2> <div class='methods'> <h3 id='tymethod.from_raw_fd' class='method'><span id='from_raw_fd.v' class='invisible'><code>unsafe fn <a href='#tymethod.from_raw_fd' class='fnname'>from_raw_fd</a>(fd: <a class="type" href="../../../../std/os/unix/io/type.RawFd.html" title="type std::os::unix::io::RawFd">RawFd</a>) -> Self</code></span></h3><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Constructs a new instance of <code>Self</code> from the given raw file descriptor.</p> <p>This function <strong>consumes ownership</strong> of the specified file descriptor. The returned object will take responsibility for closing it when the object goes out of scope.</p> <p>This function is also unsafe as the primitives currently returned have the contract that they are the sole owner of the file descriptor they are wrapping. Usage of this function could accidentally allow violating this contract which can cause memory unsafety in code that relies on it being true.</p> </div></div> <h2 id='implementors' class='small-section-header'> Implementors<a href='#implementors' class='anchor'></a> </h2> <ul class='item-list' id='implementors-list'> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/io.rs.html#83-87' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/fs/struct.File.html" title="struct std::fs::File">File</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/process.rs.html#145-151' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/process/struct.Stdio.html" title="struct std::process::Stdio">Stdio</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/net.rs.html#578-582' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/os/unix/net/struct.UnixStream.html" title="struct std::os::unix::net::UnixStream">UnixStream</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/net.rs.html#607-612' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/net/struct.TcpStream.html" title="struct std::net::TcpStream">TcpStream</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/net.rs.html#615-620' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/net/struct.TcpListener.html" title="struct std::net::TcpListener">TcpListener</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/net.rs.html#623-628' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/net/struct.UdpSocket.html" title="struct std::net::UdpSocket">UdpSocket</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/net.rs.html#868-872' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/os/unix/net/struct.UnixListener.html" title="struct std::os::unix::net::UnixListener">UnixListener</a></code></li> <li><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/net.rs.html#1397-1401' title='goto source code'>[src]</a></div><code>impl FromRawFd for <a class="struct" href="../../../../std/os/unix/net/struct.UnixDatagram.html" title="struct std::os::unix::net::UnixDatagram">UnixDatagram</a></code></li> </ul><script type="text/javascript" async src="../../../../implementors/std/os/unix/io/trait.FromRawFd.js"> </script></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> </div> </div> </aside> <script> window.rootPath = "../../../../"; window.currentCrate = "std"; </script> <script src="../../../../main.js"></script> <script defer src="../../../../search-index.js"></script> </body> </html>