| <!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 of the Rust file `/root/.cargo/git/checkouts/incubator-teaclave-crates-c8106113f74feefc/ede1f68/mio/src/sys/unix/uds/listener.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>listener.rs - source</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 rel="stylesheet" href="../../../../../normalize.css"><link rel="stylesheet" href="../../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../../dark.css" disabled><link rel="stylesheet" href="../../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../../storage.js"></script><script defer src="../../../../../source-script.js"></script><script defer src="../../../../../source-files.js"></script><script defer src="../../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../../mio/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../../mio/index.html"><img class="rust-logo" src="../../../../../rust-logo.svg" alt="logo"></a><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="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span><span class="kw">super</span>::socket_addr; |
| <span class="kw">use </span><span class="kw">crate</span>::net::{SocketAddr, UnixStream}; |
| <span class="kw">use </span><span class="kw">crate</span>::sys::unix::net::new_socket; |
| <span class="kw">use </span>std::os::unix::io::{AsRawFd, FromRawFd}; |
| <span class="kw">use </span>std::os::unix::net; |
| <span class="kw">use </span>std::path::Path; |
| <span class="kw">use </span>std::{io, mem}; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>bind(path: <span class="kw-2">&</span>Path) -> io::Result<net::UnixListener> { |
| <span class="kw">let </span>(sockaddr, socklen) = socket_addr(path)<span class="question-mark">?</span>; |
| <span class="kw">let </span>sockaddr = <span class="kw-2">&</span>sockaddr <span class="kw">as </span><span class="kw-2">*const </span>libc::sockaddr_un <span class="kw">as </span><span class="kw-2">*const </span>libc::sockaddr; |
| |
| <span class="kw">let </span>fd = new_socket(libc::AF_UNIX, libc::SOCK_STREAM)<span class="question-mark">?</span>; |
| <span class="kw">let </span>socket = <span class="kw">unsafe </span>{ net::UnixListener::from_raw_fd(fd) }; |
| <span class="macro">syscall!</span>(bind(fd, sockaddr, socklen))<span class="question-mark">?</span>; |
| <span class="macro">syscall!</span>(listen(fd, <span class="number">1024</span>))<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(socket) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>accept(listener: <span class="kw-2">&</span>net::UnixListener) -> io::Result<(UnixStream, SocketAddr)> { |
| <span class="kw">let </span>sockaddr = mem::MaybeUninit::<libc::sockaddr_un>::zeroed(); |
| |
| <span class="comment">// This is safe to assume because a `libc::sockaddr_un` filled with `0` |
| // bytes is properly initialized. |
| // |
| // `0` is a valid value for `sockaddr_un::sun_family`; it is |
| // `libc::AF_UNSPEC`. |
| // |
| // `[0; 108]` is a valid value for `sockaddr_un::sun_path`; it begins an |
| // abstract path. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>sockaddr = <span class="kw">unsafe </span>{ sockaddr.assume_init() }; |
| |
| sockaddr.sun_family = libc::AF_UNIX <span class="kw">as </span>libc::sa_family_t; |
| <span class="kw">let </span><span class="kw-2">mut </span>socklen = mem::size_of_val(<span class="kw-2">&</span>sockaddr) <span class="kw">as </span>libc::socklen_t; |
| |
| <span class="attribute">#[cfg(not(any( |
| target_os = <span class="string">"ios"</span>, |
| target_os = <span class="string">"macos"</span>, |
| target_os = <span class="string">"netbsd"</span>, |
| target_os = <span class="string">"redox"</span>, |
| target_os = <span class="string">"tvos"</span>, |
| target_os = <span class="string">"watchos"</span>, |
| <span class="comment">// Android x86's seccomp profile forbids calls to `accept4(2)` |
| // See https://github.com/tokio-rs/mio/issues/1445 for details |
| </span>all(target_arch = <span class="string">"x86"</span>, target_os = <span class="string">"android"</span>), |
| )))] |
| </span><span class="kw">let </span>socket = { |
| <span class="kw">let </span>flags = libc::SOCK_NONBLOCK | libc::SOCK_CLOEXEC; |
| <span class="macro">syscall!</span>(accept4( |
| listener.as_raw_fd(), |
| <span class="kw-2">&mut </span>sockaddr <span class="kw">as </span><span class="kw-2">*mut </span>libc::sockaddr_un <span class="kw">as </span><span class="kw-2">*mut </span>libc::sockaddr, |
| <span class="kw-2">&mut </span>socklen, |
| flags |
| )) |
| .map(|socket| <span class="kw">unsafe </span>{ net::UnixStream::from_raw_fd(socket) }) |
| }; |
| |
| <span class="attribute">#[cfg(any( |
| target_os = <span class="string">"ios"</span>, |
| target_os = <span class="string">"macos"</span>, |
| target_os = <span class="string">"netbsd"</span>, |
| target_os = <span class="string">"redox"</span>, |
| target_os = <span class="string">"tvos"</span>, |
| target_os = <span class="string">"watchos"</span>, |
| all(target_arch = <span class="string">"x86"</span>, target_os = <span class="string">"android"</span>) |
| ))] |
| </span><span class="kw">let </span>socket = <span class="macro">syscall!</span>(accept( |
| listener.as_raw_fd(), |
| <span class="kw-2">&mut </span>sockaddr <span class="kw">as </span><span class="kw-2">*mut </span>libc::sockaddr_un <span class="kw">as </span><span class="kw-2">*mut </span>libc::sockaddr, |
| <span class="kw-2">&mut </span>socklen, |
| )) |
| .and_then(|socket| { |
| <span class="comment">// Ensure the socket is closed if either of the `fcntl` calls |
| // error below. |
| </span><span class="kw">let </span>s = <span class="kw">unsafe </span>{ net::UnixStream::from_raw_fd(socket) }; |
| <span class="macro">syscall!</span>(fcntl(socket, libc::F_SETFD, libc::FD_CLOEXEC))<span class="question-mark">?</span>; |
| |
| <span class="comment">// See https://github.com/tokio-rs/mio/issues/1450 |
| </span><span class="attribute">#[cfg(all(target_arch = <span class="string">"x86"</span>, target_os = <span class="string">"android"</span>))] |
| </span><span class="macro">syscall!</span>(fcntl(socket, libc::F_SETFL, libc::O_NONBLOCK))<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(s) |
| }); |
| |
| socket |
| .map(UnixStream::from_std) |
| .map(|stream| (stream, SocketAddr::from_parts(sockaddr, socklen))) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>local_addr(listener: <span class="kw-2">&</span>net::UnixListener) -> io::Result<SocketAddr> { |
| <span class="kw">super</span>::local_addr(listener.as_raw_fd()) |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../../" data-current-crate="mio" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
