<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source to the Rust file `libstd/sys/unix/ext/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs.html -- source</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 source"><!--[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></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"><pre class="line-numbers"><span id="1"> 1</span> <span id="2"> 2</span> <span id="3"> 3</span> <span id="4"> 4</span> <span id="5"> 5</span> <span id="6"> 6</span> <span id="7"> 7</span> <span id="8"> 8</span> <span id="9"> 9</span> <span id="10">10</span> <span id="11">11</span> <span id="12">12</span> <span id="13">13</span> <span id="14">14</span> <span id="15">15</span> <span id="16">16</span> <span id="17">17</span> <span id="18">18</span> <span id="19">19</span> <span id="20">20</span> <span id="21">21</span> <span id="22">22</span> <span id="23">23</span> <span id="24">24</span> <span id="25">25</span> <span id="26">26</span> <span id="27">27</span> <span id="28">28</span> <span id="29">29</span> <span id="30">30</span> <span id="31">31</span> <span id="32">32</span> <span id="33">33</span> <span id="34">34</span> <span id="35">35</span> <span id="36">36</span> <span id="37">37</span> <span id="38">38</span> <span id="39">39</span> <span id="40">40</span> <span id="41">41</span> <span id="42">42</span> <span id="43">43</span> <span id="44">44</span> <span id="45">45</span> <span id="46">46</span> <span id="47">47</span> <span id="48">48</span> <span id="49">49</span> <span id="50">50</span> <span id="51">51</span> <span id="52">52</span> <span id="53">53</span> <span id="54">54</span> <span id="55">55</span> <span id="56">56</span> <span id="57">57</span> <span id="58">58</span> <span id="59">59</span> <span id="60">60</span> <span id="61">61</span> <span id="62">62</span> <span id="63">63</span> <span id="64">64</span> <span id="65">65</span> <span id="66">66</span> </pre><pre class="rust "> <span class="comment">// Copyright 2014 The Rust Project Developers. See the COPYRIGHT</span> <span class="comment">// file at the top-level directory of this distribution and at</span> <span class="comment">// http://rust-lang.org/COPYRIGHT.</span> <span class="comment">//</span> <span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span> <span class="comment">// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span> <span class="comment">// option. This file may not be copied, modified, or distributed</span> <span class="comment">// except according to those terms.</span> <span class="doccomment">//! Experimental extensions to `std` for Unix platforms.</span> <span class="doccomment">//!</span> <span class="doccomment">//! Provides access to platform-level information on Unix platforms, and</span> <span class="doccomment">//! exposes Unix-specific functions that would otherwise be inappropriate as</span> <span class="doccomment">//! part of the core `std` library.</span> <span class="doccomment">//!</span> <span class="doccomment">//! It exposes more ways to deal with platform-specific strings (`OsStr`,</span> <span class="doccomment">//! `OsString`), allows to set permissions more granularly, extract low-level</span> <span class="doccomment">//! file descriptors from files and sockets, and has platform-specific helpers</span> <span class="doccomment">//! for spawning processes.</span> <span class="doccomment">//!</span> <span class="doccomment">//! # Examples</span> <span class="doccomment">//!</span> <span class="doccomment">//! ```no_run</span> <span class="doccomment">//! use std::fs::File;</span> <span class="doccomment">//! use std::os::unix::prelude::*;</span> <span class="doccomment">//!</span> <span class="doccomment">//! fn main() {</span> <span class="doccomment">//! let f = File::create("foo.txt").unwrap();</span> <span class="doccomment">//! let fd = f.as_raw_fd();</span> <span class="doccomment">//!</span> <span class="doccomment">//! // use fd with native unix bindings</span> <span class="doccomment">//! }</span> <span class="doccomment">//! ```</span> <span class="attribute">#![<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="attribute">#![<span class="ident">doc</span>(<span class="ident">cfg</span>(<span class="ident">unix</span>))]</span> <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">io</span>; <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">ffi</span>; <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">fs</span>; <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">process</span>; <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">raw</span>; <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">thread</span>; <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">net</span>; <span class="doccomment">/// A prelude for conveniently writing platform-specific code.</span> <span class="doccomment">///</span> <span class="doccomment">/// Includes all extension traits, and some important type definitions.</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">prelude</span> { <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">io</span>::{<span class="ident">RawFd</span>, <span class="ident">AsRawFd</span>, <span class="ident">FromRawFd</span>, <span class="ident">IntoRawFd</span>}; <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">ffi</span>::{<span class="ident">OsStrExt</span>, <span class="ident">OsStringExt</span>}; <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">fs</span>::{<span class="ident">PermissionsExt</span>, <span class="ident">OpenOptionsExt</span>, <span class="ident">MetadataExt</span>, <span class="ident">FileTypeExt</span>}; <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">fs</span>::<span class="ident">DirEntryExt</span>; <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"file_offset"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.15.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">fs</span>::<span class="ident">FileExt</span>; <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">thread</span>::<span class="ident">JoinHandleExt</span>; <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">no_inline</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">process</span>::{<span class="ident">CommandExt</span>, <span class="ident">ExitStatusExt</span>}; 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