| <!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/registry/src/github.com-1ecc6299db9ec823/tracing-core-0.1.31/src/stdlib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>stdlib.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="../../tracing_core/index.html"><div class="logo-container"> |
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| <img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" 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="doccomment">//! Re-exports either the Rust `std` library or `core` and `alloc` when `std` is |
| //! disabled. |
| //! |
| //! `crate::stdlib::...` should be used rather than `std::` when adding code that |
| //! will be available with the standard library disabled. |
| //! |
| //! Note that this module is called `stdlib` rather than `std`, as Rust 1.34.0 |
| //! does not permit redefining the name `stdlib` (although this works on the |
| //! latest stable Rust). |
| </span><span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::<span class="kw-2">*</span>; |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"std"</span>))] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="self">self</span>::no_std::<span class="kw-2">*</span>; |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"std"</span>))] |
| </span><span class="kw">mod </span>no_std { |
| <span class="comment">// We pre-emptively export everything from libcore/liballoc, (even modules |
| // we aren't using currently) to make adding new code easier. Therefore, |
| // some of these imports will be unused. |
| </span><span class="attribute">#![allow(unused_imports)] |
| |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::{ |
| any, array, ascii, cell, char, clone, cmp, convert, default, f32, f64, ffi, future, hash, |
| hint, i128, i16, i8, isize, iter, marker, mem, num, ops, option, pin, ptr, result, task, |
| time, u128, u16, u32, u8, usize, |
| }; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>alloc::{boxed, collections, rc, string, vec}; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>borrow { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>alloc::borrow::<span class="kw-2">*</span>; |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::borrow::<span class="kw-2">*</span>; |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>fmt { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>alloc::fmt::<span class="kw-2">*</span>; |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::fmt::<span class="kw-2">*</span>; |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>slice { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>alloc::slice::<span class="kw-2">*</span>; |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::slice::<span class="kw-2">*</span>; |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>str { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>alloc::str::<span class="kw-2">*</span>; |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::str::<span class="kw-2">*</span>; |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>sync { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::spin::MutexGuard; |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>alloc::sync::<span class="kw-2">*</span>; |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::sync::<span class="kw-2">*</span>; |
| |
| <span class="doccomment">/// This wraps `spin::Mutex` to return a `Result`, so that it can be |
| /// used with code written against `std::sync::Mutex`. |
| /// |
| /// Since `spin::Mutex` doesn't support poisoning, the `Result` returned |
| /// by `lock` will always be `Ok`. |
| </span><span class="attribute">#[derive(Debug, Default)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Mutex<T> { |
| inner: <span class="kw">crate</span>::spin::Mutex<T>, |
| } |
| |
| <span class="kw">impl</span><T> Mutex<T> { |
| <span class="comment">// pub(crate) fn new(data: T) -> Self { |
| // Self { |
| // inner: crate::spin::Mutex::new(data), |
| // } |
| // } |
| |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>lock(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><MutexGuard<<span class="lifetime">'_</span>, T>, ()> { |
| <span class="prelude-val">Ok</span>(<span class="self">self</span>.inner.lock()) |
| } |
| } |
| } |
| } |
| </code></pre></div> |
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