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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/mod.rs`."><title>mod.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/</div>mod.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! This module abstracts over `loom` and `std::sync` depending on whether we
<a href=#2 id=2 data-nosnippet>2</a>//! are running tests or not.
<a href=#3 id=3 data-nosnippet>3</a>
<a href=#4 id=4 data-nosnippet>4</a></span><span class="attr">#![allow(unused)]
<a href=#5 id=5 data-nosnippet>5</a>
<a href=#6 id=6 data-nosnippet>6</a>#[cfg(not(all(test, loom)))]
<a href=#7 id=7 data-nosnippet>7</a></span><span class="kw">mod </span>std;
<a href=#8 id=8 data-nosnippet>8</a><span class="attr">#[cfg(not(all(test, loom)))]
<a href=#9 id=9 data-nosnippet>9</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="self">self</span>::std::<span class="kw-2">*</span>;
<a href=#10 id=10 data-nosnippet>10</a>
<a href=#11 id=11 data-nosnippet>11</a><span class="attr">#[cfg(all(test, loom))]
<a href=#12 id=12 data-nosnippet>12</a></span><span class="kw">mod </span>mocked;
<a href=#13 id=13 data-nosnippet>13</a><span class="attr">#[cfg(all(test, loom))]
<a href=#14 id=14 data-nosnippet>14</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="self">self</span>::mocked::<span class="kw-2">*</span>;
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/atomic_u16.rs`."><title>atomic_u16.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>atomic_u16.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::cell::UnsafeCell;
<a href=#2 id=2 data-nosnippet>2</a><span class="kw">use </span>std::fmt;
<a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>std::ops::Deref;
<a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>std::panic;
<a href=#5 id=5 data-nosnippet>5</a>
<a href=#6 id=6 data-nosnippet>6</a><span class="doccomment">/// `AtomicU16` providing an additional `unsync_load` function.
<a href=#7 id=7 data-nosnippet>7</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>AtomicU16 {
<a href=#8 id=8 data-nosnippet>8</a> inner: UnsafeCell&lt;std::sync::atomic::AtomicU16&gt;,
<a href=#9 id=9 data-nosnippet>9</a>}
<a href=#10 id=10 data-nosnippet>10</a>
<a href=#11 id=11 data-nosnippet>11</a><span class="kw">unsafe impl </span>Send <span class="kw">for </span>AtomicU16 {}
<a href=#12 id=12 data-nosnippet>12</a><span class="kw">unsafe impl </span>Sync <span class="kw">for </span>AtomicU16 {}
<a href=#13 id=13 data-nosnippet>13</a><span class="kw">impl </span>panic::RefUnwindSafe <span class="kw">for </span>AtomicU16 {}
<a href=#14 id=14 data-nosnippet>14</a><span class="kw">impl </span>panic::UnwindSafe <span class="kw">for </span>AtomicU16 {}
<a href=#15 id=15 data-nosnippet>15</a>
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">impl </span>AtomicU16 {
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>new(val: u16) -&gt; AtomicU16 {
<a href=#18 id=18 data-nosnippet>18</a> <span class="kw">let </span>inner = UnsafeCell::new(std::sync::atomic::AtomicU16::new(val));
<a href=#19 id=19 data-nosnippet>19</a> AtomicU16 { inner }
<a href=#20 id=20 data-nosnippet>20</a> }
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a> <span class="doccomment">/// Performs an unsynchronized load.
<a href=#23 id=23 data-nosnippet>23</a> ///
<a href=#24 id=24 data-nosnippet>24</a> /// # Safety
<a href=#25 id=25 data-nosnippet>25</a> ///
<a href=#26 id=26 data-nosnippet>26</a> /// All mutations must have happened before the unsynchronized load.
<a href=#27 id=27 data-nosnippet>27</a> /// Additionally, there must be no concurrent mutations.
<a href=#28 id=28 data-nosnippet>28</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>unsync_load(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u16 {
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">unsafe </span>{ core::ptr::read(<span class="self">self</span>.inner.get() <span class="kw">as </span><span class="kw-2">*const </span>u16) }
<a href=#30 id=30 data-nosnippet>30</a> }
<a href=#31 id=31 data-nosnippet>31</a>}
<a href=#32 id=32 data-nosnippet>32</a>
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">impl </span>Deref <span class="kw">for </span>AtomicU16 {
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">type </span>Target = std::sync::atomic::AtomicU16;
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="self">Self</span>::Target {
<a href=#37 id=37 data-nosnippet>37</a> <span class="comment">// safety: it is always safe to access `&amp;self` fns on the inner value as
<a href=#38 id=38 data-nosnippet>38</a> // we never perform unsafe mutations.
<a href=#39 id=39 data-nosnippet>39</a> </span><span class="kw">unsafe </span>{ <span class="kw-2">&amp;*</span><span class="self">self</span>.inner.get() }
<a href=#40 id=40 data-nosnippet>40</a> }
<a href=#41 id=41 data-nosnippet>41</a>}
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>AtomicU16 {
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, fmt: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#45 id=45 data-nosnippet>45</a> <span class="self">self</span>.deref().fmt(fmt)
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a>}
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/atomic_u32.rs`."><title>atomic_u32.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>atomic_u32.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::cell::UnsafeCell;
<a href=#2 id=2 data-nosnippet>2</a><span class="kw">use </span>std::fmt;
<a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>std::ops::Deref;
<a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>std::panic;
<a href=#5 id=5 data-nosnippet>5</a>
<a href=#6 id=6 data-nosnippet>6</a><span class="doccomment">/// `AtomicU32` providing an additional `unsync_load` function.
<a href=#7 id=7 data-nosnippet>7</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>AtomicU32 {
<a href=#8 id=8 data-nosnippet>8</a> inner: UnsafeCell&lt;std::sync::atomic::AtomicU32&gt;,
<a href=#9 id=9 data-nosnippet>9</a>}
<a href=#10 id=10 data-nosnippet>10</a>
<a href=#11 id=11 data-nosnippet>11</a><span class="kw">unsafe impl </span>Send <span class="kw">for </span>AtomicU32 {}
<a href=#12 id=12 data-nosnippet>12</a><span class="kw">unsafe impl </span>Sync <span class="kw">for </span>AtomicU32 {}
<a href=#13 id=13 data-nosnippet>13</a><span class="kw">impl </span>panic::RefUnwindSafe <span class="kw">for </span>AtomicU32 {}
<a href=#14 id=14 data-nosnippet>14</a><span class="kw">impl </span>panic::UnwindSafe <span class="kw">for </span>AtomicU32 {}
<a href=#15 id=15 data-nosnippet>15</a>
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">impl </span>AtomicU32 {
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>new(val: u32) -&gt; AtomicU32 {
<a href=#18 id=18 data-nosnippet>18</a> <span class="kw">let </span>inner = UnsafeCell::new(std::sync::atomic::AtomicU32::new(val));
<a href=#19 id=19 data-nosnippet>19</a> AtomicU32 { inner }
<a href=#20 id=20 data-nosnippet>20</a> }
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a> <span class="doccomment">/// Performs an unsynchronized load.
<a href=#23 id=23 data-nosnippet>23</a> ///
<a href=#24 id=24 data-nosnippet>24</a> /// # Safety
<a href=#25 id=25 data-nosnippet>25</a> ///
<a href=#26 id=26 data-nosnippet>26</a> /// All mutations must have happened before the unsynchronized load.
<a href=#27 id=27 data-nosnippet>27</a> /// Additionally, there must be no concurrent mutations.
<a href=#28 id=28 data-nosnippet>28</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>unsync_load(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u32 {
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">unsafe </span>{ core::ptr::read(<span class="self">self</span>.inner.get() <span class="kw">as </span><span class="kw-2">*const </span>u32) }
<a href=#30 id=30 data-nosnippet>30</a> }
<a href=#31 id=31 data-nosnippet>31</a>}
<a href=#32 id=32 data-nosnippet>32</a>
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">impl </span>Deref <span class="kw">for </span>AtomicU32 {
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">type </span>Target = std::sync::atomic::AtomicU32;
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="self">Self</span>::Target {
<a href=#37 id=37 data-nosnippet>37</a> <span class="comment">// safety: it is always safe to access `&amp;self` fns on the inner value as
<a href=#38 id=38 data-nosnippet>38</a> // we never perform unsafe mutations.
<a href=#39 id=39 data-nosnippet>39</a> </span><span class="kw">unsafe </span>{ <span class="kw-2">&amp;*</span><span class="self">self</span>.inner.get() }
<a href=#40 id=40 data-nosnippet>40</a> }
<a href=#41 id=41 data-nosnippet>41</a>}
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>AtomicU32 {
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, fmt: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#45 id=45 data-nosnippet>45</a> <span class="self">self</span>.deref().fmt(fmt)
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a>}
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/atomic_u64.rs`."><title>atomic_u64.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>atomic_u64.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! Implementation of an atomic `u64` cell. On 64 bit platforms, this is a
<a href=#2 id=2 data-nosnippet>2</a>//! re-export of `AtomicU64`. On 32 bit platforms, this is implemented using a
<a href=#3 id=3 data-nosnippet>3</a>//! `Mutex`.
<a href=#4 id=4 data-nosnippet>4</a>
<a href=#5 id=5 data-nosnippet>5</a></span><span class="comment">// `AtomicU64` can only be used on targets with `target_has_atomic` is 64 or greater.
<a href=#6 id=6 data-nosnippet>6</a>// Once `cfg_target_has_atomic` feature is stable, we can replace it with
<a href=#7 id=7 data-nosnippet>7</a>// `#[cfg(target_has_atomic = "64")]`.
<a href=#8 id=8 data-nosnippet>8</a>// Refs: https://github.com/rust-lang/rust/tree/master/src/librustc_target
<a href=#9 id=9 data-nosnippet>9</a></span><span class="macro">cfg_has_atomic_u64!</span> {
<a href=#10 id=10 data-nosnippet>10</a> <span class="attr">#[path = <span class="string">"atomic_u64_native.rs"</span>]
<a href=#11 id=11 data-nosnippet>11</a> </span><span class="kw">mod </span>imp;
<a href=#12 id=12 data-nosnippet>12</a>}
<a href=#13 id=13 data-nosnippet>13</a>
<a href=#14 id=14 data-nosnippet>14</a><span class="macro">cfg_not_has_atomic_u64!</span> {
<a href=#15 id=15 data-nosnippet>15</a> <span class="attr">#[path = <span class="string">"atomic_u64_as_mutex.rs"</span>]
<a href=#16 id=16 data-nosnippet>16</a> </span><span class="kw">mod </span>imp;
<a href=#17 id=17 data-nosnippet>17</a>}
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>imp::{AtomicU64, StaticAtomicU64};
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/atomic_u64_native.rs`."><title>atomic_u64_native.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>atomic_u64_native.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-1"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::sync::atomic::{AtomicU64, Ordering};
<a href=#2 id=2 data-nosnippet>2</a>
<a href=#3 id=3 data-nosnippet>3</a><span class="doccomment">/// Alias `AtomicU64` to `StaticAtomicU64`
<a href=#4 id=4 data-nosnippet>4</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">type </span>StaticAtomicU64 = AtomicU64;
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/atomic_usize.rs`."><title>atomic_usize.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>atomic_usize.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::cell::UnsafeCell;
<a href=#2 id=2 data-nosnippet>2</a><span class="kw">use </span>std::fmt;
<a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>std::ops;
<a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>std::panic;
<a href=#5 id=5 data-nosnippet>5</a>
<a href=#6 id=6 data-nosnippet>6</a><span class="doccomment">/// `AtomicUsize` providing an additional `unsync_load` function.
<a href=#7 id=7 data-nosnippet>7</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>AtomicUsize {
<a href=#8 id=8 data-nosnippet>8</a> inner: UnsafeCell&lt;std::sync::atomic::AtomicUsize&gt;,
<a href=#9 id=9 data-nosnippet>9</a>}
<a href=#10 id=10 data-nosnippet>10</a>
<a href=#11 id=11 data-nosnippet>11</a><span class="kw">unsafe impl </span>Send <span class="kw">for </span>AtomicUsize {}
<a href=#12 id=12 data-nosnippet>12</a><span class="kw">unsafe impl </span>Sync <span class="kw">for </span>AtomicUsize {}
<a href=#13 id=13 data-nosnippet>13</a><span class="kw">impl </span>panic::RefUnwindSafe <span class="kw">for </span>AtomicUsize {}
<a href=#14 id=14 data-nosnippet>14</a><span class="kw">impl </span>panic::UnwindSafe <span class="kw">for </span>AtomicUsize {}
<a href=#15 id=15 data-nosnippet>15</a>
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">impl </span>AtomicUsize {
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>new(val: usize) -&gt; AtomicUsize {
<a href=#18 id=18 data-nosnippet>18</a> <span class="kw">let </span>inner = UnsafeCell::new(std::sync::atomic::AtomicUsize::new(val));
<a href=#19 id=19 data-nosnippet>19</a> AtomicUsize { inner }
<a href=#20 id=20 data-nosnippet>20</a> }
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a> <span class="doccomment">/// Performs an unsynchronized load.
<a href=#23 id=23 data-nosnippet>23</a> ///
<a href=#24 id=24 data-nosnippet>24</a> /// # Safety
<a href=#25 id=25 data-nosnippet>25</a> ///
<a href=#26 id=26 data-nosnippet>26</a> /// All mutations must have happened before the unsynchronized load.
<a href=#27 id=27 data-nosnippet>27</a> /// Additionally, there must be no concurrent mutations.
<a href=#28 id=28 data-nosnippet>28</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>unsync_load(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">unsafe </span>{ core::ptr::read(<span class="self">self</span>.inner.get() <span class="kw">as </span><span class="kw-2">*const </span>usize) }
<a href=#30 id=30 data-nosnippet>30</a> }
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>with_mut&lt;R&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, f: <span class="kw">impl </span>FnOnce(<span class="kw-2">&amp;mut </span>usize) -&gt; R) -&gt; R {
<a href=#33 id=33 data-nosnippet>33</a> <span class="comment">// safety: we have mutable access
<a href=#34 id=34 data-nosnippet>34</a> </span>f(<span class="kw">unsafe </span>{ (<span class="kw-2">*</span><span class="self">self</span>.inner.get()).get_mut() })
<a href=#35 id=35 data-nosnippet>35</a> }
<a href=#36 id=36 data-nosnippet>36</a>}
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">impl </span>ops::Deref <span class="kw">for </span>AtomicUsize {
<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">type </span>Target = std::sync::atomic::AtomicUsize;
<a href=#40 id=40 data-nosnippet>40</a>
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="self">Self</span>::Target {
<a href=#42 id=42 data-nosnippet>42</a> <span class="comment">// safety: it is always safe to access `&amp;self` fns on the inner value as
<a href=#43 id=43 data-nosnippet>43</a> // we never perform unsafe mutations.
<a href=#44 id=44 data-nosnippet>44</a> </span><span class="kw">unsafe </span>{ <span class="kw-2">&amp;*</span><span class="self">self</span>.inner.get() }
<a href=#45 id=45 data-nosnippet>45</a> }
<a href=#46 id=46 data-nosnippet>46</a>}
<a href=#47 id=47 data-nosnippet>47</a>
<a href=#48 id=48 data-nosnippet>48</a><span class="kw">impl </span>ops::DerefMut <span class="kw">for </span>AtomicUsize {
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>deref_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="self">Self</span>::Target {
<a href=#50 id=50 data-nosnippet>50</a> <span class="comment">// safety: we hold `&amp;mut self`
<a href=#51 id=51 data-nosnippet>51</a> </span><span class="kw">unsafe </span>{ <span class="kw-2">&amp;mut *</span><span class="self">self</span>.inner.get() }
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>}
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>AtomicUsize {
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, fmt: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#57 id=57 data-nosnippet>57</a> (<span class="kw-2">**</span><span class="self">self</span>).fmt(fmt)
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a>}
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/barrier.rs`."><title>barrier.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>barrier.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! A `Barrier` that provides `wait_timeout`.
<a href=#2 id=2 data-nosnippet>2</a>//!
<a href=#3 id=3 data-nosnippet>3</a>//! This implementation mirrors that of the Rust standard library.
<a href=#4 id=4 data-nosnippet>4</a>
<a href=#5 id=5 data-nosnippet>5</a></span><span class="kw">use </span><span class="kw">crate</span>::loom::sync::{Condvar, Mutex};
<a href=#6 id=6 data-nosnippet>6</a><span class="kw">use </span>std::fmt;
<a href=#7 id=7 data-nosnippet>7</a><span class="kw">use </span>std::time::{Duration, Instant};
<a href=#8 id=8 data-nosnippet>8</a>
<a href=#9 id=9 data-nosnippet>9</a><span class="doccomment">/// A barrier enables multiple threads to synchronize the beginning
<a href=#10 id=10 data-nosnippet>10</a>/// of some computation.
<a href=#11 id=11 data-nosnippet>11</a>///
<a href=#12 id=12 data-nosnippet>12</a>/// # Examples
<a href=#13 id=13 data-nosnippet>13</a>///
<a href=#14 id=14 data-nosnippet>14</a>/// ```
<a href=#15 id=15 data-nosnippet>15</a>/// # #[cfg(not(target_family = "wasm"))]
<a href=#16 id=16 data-nosnippet>16</a>/// # {
<a href=#17 id=17 data-nosnippet>17</a>/// use std::sync::{Arc, Barrier};
<a href=#18 id=18 data-nosnippet>18</a>/// use std::thread;
<a href=#19 id=19 data-nosnippet>19</a>///
<a href=#20 id=20 data-nosnippet>20</a>/// let mut handles = Vec::with_capacity(10);
<a href=#21 id=21 data-nosnippet>21</a>/// let barrier = Arc::new(Barrier::new(10));
<a href=#22 id=22 data-nosnippet>22</a>/// for _ in 0..10 {
<a href=#23 id=23 data-nosnippet>23</a>/// let c = Arc::clone(&amp;barrier);
<a href=#24 id=24 data-nosnippet>24</a>/// // The same messages will be printed together.
<a href=#25 id=25 data-nosnippet>25</a>/// // You will NOT see any interleaving.
<a href=#26 id=26 data-nosnippet>26</a>/// handles.push(thread::spawn(move|| {
<a href=#27 id=27 data-nosnippet>27</a>/// println!("before wait");
<a href=#28 id=28 data-nosnippet>28</a>/// c.wait();
<a href=#29 id=29 data-nosnippet>29</a>/// println!("after wait");
<a href=#30 id=30 data-nosnippet>30</a>/// }));
<a href=#31 id=31 data-nosnippet>31</a>/// }
<a href=#32 id=32 data-nosnippet>32</a>/// // Wait for other threads to finish.
<a href=#33 id=33 data-nosnippet>33</a>/// for handle in handles {
<a href=#34 id=34 data-nosnippet>34</a>/// handle.join().unwrap();
<a href=#35 id=35 data-nosnippet>35</a>/// }
<a href=#36 id=36 data-nosnippet>36</a>/// # }
<a href=#37 id=37 data-nosnippet>37</a>/// ```
<a href=#38 id=38 data-nosnippet>38</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Barrier {
<a href=#39 id=39 data-nosnippet>39</a> lock: Mutex&lt;BarrierState&gt;,
<a href=#40 id=40 data-nosnippet>40</a> cvar: Condvar,
<a href=#41 id=41 data-nosnippet>41</a> num_threads: usize,
<a href=#42 id=42 data-nosnippet>42</a>}
<a href=#43 id=43 data-nosnippet>43</a>
<a href=#44 id=44 data-nosnippet>44</a><span class="comment">// The inner state of a double barrier
<a href=#45 id=45 data-nosnippet>45</a></span><span class="kw">struct </span>BarrierState {
<a href=#46 id=46 data-nosnippet>46</a> count: usize,
<a href=#47 id=47 data-nosnippet>47</a> generation_id: usize,
<a href=#48 id=48 data-nosnippet>48</a>}
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a><span class="doccomment">/// A `BarrierWaitResult` is returned by [`Barrier::wait()`] when all threads
<a href=#51 id=51 data-nosnippet>51</a>/// in the [`Barrier`] have rendezvoused.
<a href=#52 id=52 data-nosnippet>52</a>///
<a href=#53 id=53 data-nosnippet>53</a>/// # Examples
<a href=#54 id=54 data-nosnippet>54</a>///
<a href=#55 id=55 data-nosnippet>55</a>/// ```
<a href=#56 id=56 data-nosnippet>56</a>/// use std::sync::Barrier;
<a href=#57 id=57 data-nosnippet>57</a>///
<a href=#58 id=58 data-nosnippet>58</a>/// let barrier = Barrier::new(1);
<a href=#59 id=59 data-nosnippet>59</a>/// let barrier_wait_result = barrier.wait();
<a href=#60 id=60 data-nosnippet>60</a>/// ```
<a href=#61 id=61 data-nosnippet>61</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>BarrierWaitResult(bool);
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Barrier {
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#65 id=65 data-nosnippet>65</a> f.debug_struct(<span class="string">"Barrier"</span>).finish_non_exhaustive()
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a>}
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a><span class="kw">impl </span>Barrier {
<a href=#70 id=70 data-nosnippet>70</a> <span class="doccomment">/// Creates a new barrier that can block a given number of threads.
<a href=#71 id=71 data-nosnippet>71</a> ///
<a href=#72 id=72 data-nosnippet>72</a> /// A barrier will block `n`-1 threads which call [`wait()`] and then wake
<a href=#73 id=73 data-nosnippet>73</a> /// up all threads at once when the `n`th thread calls [`wait()`].
<a href=#74 id=74 data-nosnippet>74</a> ///
<a href=#75 id=75 data-nosnippet>75</a> /// [`wait()`]: Barrier::wait
<a href=#76 id=76 data-nosnippet>76</a> ///
<a href=#77 id=77 data-nosnippet>77</a> /// # Examples
<a href=#78 id=78 data-nosnippet>78</a> ///
<a href=#79 id=79 data-nosnippet>79</a> /// ```
<a href=#80 id=80 data-nosnippet>80</a> /// use std::sync::Barrier;
<a href=#81 id=81 data-nosnippet>81</a> ///
<a href=#82 id=82 data-nosnippet>82</a> /// let barrier = Barrier::new(10);
<a href=#83 id=83 data-nosnippet>83</a> /// ```
<a href=#84 id=84 data-nosnippet>84</a> </span><span class="attr">#[must_use]
<a href=#85 id=85 data-nosnippet>85</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(n: usize) -&gt; Barrier {
<a href=#86 id=86 data-nosnippet>86</a> Barrier {
<a href=#87 id=87 data-nosnippet>87</a> lock: Mutex::new(BarrierState {
<a href=#88 id=88 data-nosnippet>88</a> count: <span class="number">0</span>,
<a href=#89 id=89 data-nosnippet>89</a> generation_id: <span class="number">0</span>,
<a href=#90 id=90 data-nosnippet>90</a> }),
<a href=#91 id=91 data-nosnippet>91</a> cvar: Condvar::new(),
<a href=#92 id=92 data-nosnippet>92</a> num_threads: n,
<a href=#93 id=93 data-nosnippet>93</a> }
<a href=#94 id=94 data-nosnippet>94</a> }
<a href=#95 id=95 data-nosnippet>95</a>
<a href=#96 id=96 data-nosnippet>96</a> <span class="doccomment">/// Blocks the current thread until all threads have rendezvoused here.
<a href=#97 id=97 data-nosnippet>97</a> ///
<a href=#98 id=98 data-nosnippet>98</a> /// Barriers are re-usable after all threads have rendezvoused once, and can
<a href=#99 id=99 data-nosnippet>99</a> /// be used continuously.
<a href=#100 id=100 data-nosnippet>100</a> ///
<a href=#101 id=101 data-nosnippet>101</a> /// A single (arbitrary) thread will receive a [`BarrierWaitResult`] that
<a href=#102 id=102 data-nosnippet>102</a> /// returns `true` from [`BarrierWaitResult::is_leader()`] when returning
<a href=#103 id=103 data-nosnippet>103</a> /// from this function, and all other threads will receive a result that
<a href=#104 id=104 data-nosnippet>104</a> /// will return `false` from [`BarrierWaitResult::is_leader()`].
<a href=#105 id=105 data-nosnippet>105</a> ///
<a href=#106 id=106 data-nosnippet>106</a> /// # Examples
<a href=#107 id=107 data-nosnippet>107</a> ///
<a href=#108 id=108 data-nosnippet>108</a> /// ```
<a href=#109 id=109 data-nosnippet>109</a> /// # #[cfg(not(target_family = "wasm"))]
<a href=#110 id=110 data-nosnippet>110</a> /// # {
<a href=#111 id=111 data-nosnippet>111</a> /// use std::sync::{Arc, Barrier};
<a href=#112 id=112 data-nosnippet>112</a> /// use std::thread;
<a href=#113 id=113 data-nosnippet>113</a> ///
<a href=#114 id=114 data-nosnippet>114</a> /// let mut handles = Vec::with_capacity(10);
<a href=#115 id=115 data-nosnippet>115</a> /// let barrier = Arc::new(Barrier::new(10));
<a href=#116 id=116 data-nosnippet>116</a> /// for _ in 0..10 {
<a href=#117 id=117 data-nosnippet>117</a> /// let c = Arc::clone(&amp;barrier);
<a href=#118 id=118 data-nosnippet>118</a> /// // The same messages will be printed together.
<a href=#119 id=119 data-nosnippet>119</a> /// // You will NOT see any interleaving.
<a href=#120 id=120 data-nosnippet>120</a> /// handles.push(thread::spawn(move|| {
<a href=#121 id=121 data-nosnippet>121</a> /// println!("before wait");
<a href=#122 id=122 data-nosnippet>122</a> /// c.wait();
<a href=#123 id=123 data-nosnippet>123</a> /// println!("after wait");
<a href=#124 id=124 data-nosnippet>124</a> /// }));
<a href=#125 id=125 data-nosnippet>125</a> /// }
<a href=#126 id=126 data-nosnippet>126</a> /// // Wait for other threads to finish.
<a href=#127 id=127 data-nosnippet>127</a> /// for handle in handles {
<a href=#128 id=128 data-nosnippet>128</a> /// handle.join().unwrap();
<a href=#129 id=129 data-nosnippet>129</a> /// }
<a href=#130 id=130 data-nosnippet>130</a> /// # }
<a href=#131 id=131 data-nosnippet>131</a> /// ```
<a href=#132 id=132 data-nosnippet>132</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wait(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; BarrierWaitResult {
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">let </span><span class="kw-2">mut </span>lock = <span class="self">self</span>.lock.lock();
<a href=#134 id=134 data-nosnippet>134</a> <span class="kw">let </span>local_gen = lock.generation_id;
<a href=#135 id=135 data-nosnippet>135</a> lock.count += <span class="number">1</span>;
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">if </span>lock.count &lt; <span class="self">self</span>.num_threads {
<a href=#137 id=137 data-nosnippet>137</a> <span class="comment">// We need a while loop to guard against spurious wakeups.
<a href=#138 id=138 data-nosnippet>138</a> // https://en.wikipedia.org/wiki/Spurious_wakeup
<a href=#139 id=139 data-nosnippet>139</a> </span><span class="kw">while </span>local_gen == lock.generation_id {
<a href=#140 id=140 data-nosnippet>140</a> lock = <span class="self">self</span>.cvar.wait(lock).unwrap();
<a href=#141 id=141 data-nosnippet>141</a> }
<a href=#142 id=142 data-nosnippet>142</a> BarrierWaitResult(<span class="bool-val">false</span>)
<a href=#143 id=143 data-nosnippet>143</a> } <span class="kw">else </span>{
<a href=#144 id=144 data-nosnippet>144</a> lock.count = <span class="number">0</span>;
<a href=#145 id=145 data-nosnippet>145</a> lock.generation_id = lock.generation_id.wrapping_add(<span class="number">1</span>);
<a href=#146 id=146 data-nosnippet>146</a> <span class="self">self</span>.cvar.notify_all();
<a href=#147 id=147 data-nosnippet>147</a> BarrierWaitResult(<span class="bool-val">true</span>)
<a href=#148 id=148 data-nosnippet>148</a> }
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a>
<a href=#151 id=151 data-nosnippet>151</a> <span class="doccomment">/// Blocks the current thread until all threads have rendezvoused here for
<a href=#152 id=152 data-nosnippet>152</a> /// at most `timeout` duration.
<a href=#153 id=153 data-nosnippet>153</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wait_timeout(<span class="kw-2">&amp;</span><span class="self">self</span>, timeout: Duration) -&gt; <span class="prelude-ty">Option</span>&lt;BarrierWaitResult&gt; {
<a href=#154 id=154 data-nosnippet>154</a> <span class="comment">// This implementation mirrors `wait`, but with each blocking operation
<a href=#155 id=155 data-nosnippet>155</a> // replaced by a timeout-amenable alternative.
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a> </span><span class="kw">let </span>deadline = Instant::now() + timeout;
<a href=#158 id=158 data-nosnippet>158</a>
<a href=#159 id=159 data-nosnippet>159</a> <span class="comment">// Acquire `self.lock` with at most `timeout` duration.
<a href=#160 id=160 data-nosnippet>160</a> </span><span class="kw">let </span><span class="kw-2">mut </span>lock = <span class="kw">loop </span>{
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(guard) = <span class="self">self</span>.lock.try_lock() {
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw">break </span>guard;
<a href=#163 id=163 data-nosnippet>163</a> } <span class="kw">else if </span>Instant::now() &gt; deadline {
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">return </span><span class="prelude-val">None</span>;
<a href=#165 id=165 data-nosnippet>165</a> } <span class="kw">else </span>{
<a href=#166 id=166 data-nosnippet>166</a> std::thread::yield_now();
<a href=#167 id=167 data-nosnippet>167</a> }
<a href=#168 id=168 data-nosnippet>168</a> };
<a href=#169 id=169 data-nosnippet>169</a>
<a href=#170 id=170 data-nosnippet>170</a> <span class="comment">// Shrink the `timeout` to account for the time taken to acquire `lock`.
<a href=#171 id=171 data-nosnippet>171</a> </span><span class="kw">let </span>timeout = deadline.saturating_duration_since(Instant::now());
<a href=#172 id=172 data-nosnippet>172</a>
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">let </span>local_gen = lock.generation_id;
<a href=#174 id=174 data-nosnippet>174</a> lock.count += <span class="number">1</span>;
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">if </span>lock.count &lt; <span class="self">self</span>.num_threads {
<a href=#176 id=176 data-nosnippet>176</a> <span class="comment">// We need a while loop to guard against spurious wakeups.
<a href=#177 id=177 data-nosnippet>177</a> // https://en.wikipedia.org/wiki/Spurious_wakeup
<a href=#178 id=178 data-nosnippet>178</a> </span><span class="kw">while </span>local_gen == lock.generation_id {
<a href=#179 id=179 data-nosnippet>179</a> <span class="kw">let </span>(guard, timeout_result) = <span class="self">self</span>.cvar.wait_timeout(lock, timeout).unwrap();
<a href=#180 id=180 data-nosnippet>180</a> lock = guard;
<a href=#181 id=181 data-nosnippet>181</a> <span class="kw">if </span>timeout_result.timed_out() {
<a href=#182 id=182 data-nosnippet>182</a> <span class="kw">return </span><span class="prelude-val">None</span>;
<a href=#183 id=183 data-nosnippet>183</a> }
<a href=#184 id=184 data-nosnippet>184</a> }
<a href=#185 id=185 data-nosnippet>185</a> <span class="prelude-val">Some</span>(BarrierWaitResult(<span class="bool-val">false</span>))
<a href=#186 id=186 data-nosnippet>186</a> } <span class="kw">else </span>{
<a href=#187 id=187 data-nosnippet>187</a> lock.count = <span class="number">0</span>;
<a href=#188 id=188 data-nosnippet>188</a> lock.generation_id = lock.generation_id.wrapping_add(<span class="number">1</span>);
<a href=#189 id=189 data-nosnippet>189</a> <span class="self">self</span>.cvar.notify_all();
<a href=#190 id=190 data-nosnippet>190</a> <span class="prelude-val">Some</span>(BarrierWaitResult(<span class="bool-val">true</span>))
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a>}
<a href=#194 id=194 data-nosnippet>194</a>
<a href=#195 id=195 data-nosnippet>195</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>BarrierWaitResult {
<a href=#196 id=196 data-nosnippet>196</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#197 id=197 data-nosnippet>197</a> f.debug_struct(<span class="string">"BarrierWaitResult"</span>)
<a href=#198 id=198 data-nosnippet>198</a> .field(<span class="string">"is_leader"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.is_leader())
<a href=#199 id=199 data-nosnippet>199</a> .finish()
<a href=#200 id=200 data-nosnippet>200</a> }
<a href=#201 id=201 data-nosnippet>201</a>}
<a href=#202 id=202 data-nosnippet>202</a>
<a href=#203 id=203 data-nosnippet>203</a><span class="kw">impl </span>BarrierWaitResult {
<a href=#204 id=204 data-nosnippet>204</a> <span class="doccomment">/// Returns `true` if this thread is the "leader thread" for the call to
<a href=#205 id=205 data-nosnippet>205</a> /// [`Barrier::wait()`].
<a href=#206 id=206 data-nosnippet>206</a> ///
<a href=#207 id=207 data-nosnippet>207</a> /// Only one thread will have `true` returned from their result, all other
<a href=#208 id=208 data-nosnippet>208</a> /// threads will have `false` returned.
<a href=#209 id=209 data-nosnippet>209</a> ///
<a href=#210 id=210 data-nosnippet>210</a> /// # Examples
<a href=#211 id=211 data-nosnippet>211</a> ///
<a href=#212 id=212 data-nosnippet>212</a> /// ```
<a href=#213 id=213 data-nosnippet>213</a> /// use std::sync::Barrier;
<a href=#214 id=214 data-nosnippet>214</a> ///
<a href=#215 id=215 data-nosnippet>215</a> /// let barrier = Barrier::new(1);
<a href=#216 id=216 data-nosnippet>216</a> /// let barrier_wait_result = barrier.wait();
<a href=#217 id=217 data-nosnippet>217</a> /// println!("{:?}", barrier_wait_result.is_leader());
<a href=#218 id=218 data-nosnippet>218</a> /// ```
<a href=#219 id=219 data-nosnippet>219</a> </span><span class="attr">#[must_use]
<a href=#220 id=220 data-nosnippet>220</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_leader(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#221 id=221 data-nosnippet>221</a> <span class="self">self</span>.<span class="number">0
<a href=#222 id=222 data-nosnippet>222</a> </span>}
<a href=#223 id=223 data-nosnippet>223</a>}
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/mod.rs`."><title>mod.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>mod.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="attr">#![cfg_attr(any(not(feature = <span class="string">"full"</span>), loom), allow(unused_imports, dead_code))]
<a href=#2 id=2 data-nosnippet>2</a>
<a href=#3 id=3 data-nosnippet>3</a></span><span class="kw">mod </span>atomic_u16;
<a href=#4 id=4 data-nosnippet>4</a><span class="kw">mod </span>atomic_u32;
<a href=#5 id=5 data-nosnippet>5</a><span class="kw">mod </span>atomic_u64;
<a href=#6 id=6 data-nosnippet>6</a><span class="kw">mod </span>atomic_usize;
<a href=#7 id=7 data-nosnippet>7</a><span class="kw">mod </span>barrier;
<a href=#8 id=8 data-nosnippet>8</a><span class="kw">mod </span>mutex;
<a href=#9 id=9 data-nosnippet>9</a><span class="attr">#[cfg(all(feature = <span class="string">"parking_lot"</span>, not(miri)))]
<a href=#10 id=10 data-nosnippet>10</a></span><span class="kw">mod </span>parking_lot;
<a href=#11 id=11 data-nosnippet>11</a><span class="kw">mod </span>rwlock;
<a href=#12 id=12 data-nosnippet>12</a><span class="kw">mod </span>unsafe_cell;
<a href=#13 id=13 data-nosnippet>13</a>
<a href=#14 id=14 data-nosnippet>14</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>cell {
<a href=#15 id=15 data-nosnippet>15</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">super</span>::unsafe_cell::UnsafeCell;
<a href=#16 id=16 data-nosnippet>16</a>}
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="attr">#[cfg(any(
<a href=#19 id=19 data-nosnippet>19</a> feature = <span class="string">"net"</span>,
<a href=#20 id=20 data-nosnippet>20</a> feature = <span class="string">"process"</span>,
<a href=#21 id=21 data-nosnippet>21</a> feature = <span class="string">"signal"</span>,
<a href=#22 id=22 data-nosnippet>22</a> feature = <span class="string">"sync"</span>,
<a href=#23 id=23 data-nosnippet>23</a>))]
<a href=#24 id=24 data-nosnippet>24</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>future {
<a href=#25 id=25 data-nosnippet>25</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::sync::AtomicWaker;
<a href=#26 id=26 data-nosnippet>26</a>}
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>hint {
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::hint::spin_loop;
<a href=#30 id=30 data-nosnippet>30</a>}
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>rand {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">use </span>std::collections::hash_map::RandomState;
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">use </span>std::hash::{BuildHasher, Hash, Hasher};
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">use </span>std::sync::atomic::AtomicU32;
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">use </span>std::sync::atomic::Ordering::Relaxed;
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">static </span>COUNTER: AtomicU32 = AtomicU32::new(<span class="number">1</span>);
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>seed() -&gt; u64 {
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">let </span>rand_state = RandomState::new();
<a href=#42 id=42 data-nosnippet>42</a> <span class="comment">// Hash some unique-ish data to generate some new state
<a href=#43 id=43 data-nosnippet>43</a> </span>rand_state.hash_one(COUNTER.fetch_add(<span class="number">1</span>, Relaxed))
<a href=#44 id=44 data-nosnippet>44</a> }
<a href=#45 id=45 data-nosnippet>45</a>}
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>sync {
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::sync::{Arc, Weak};
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a> <span class="comment">// Below, make sure all the feature-influenced types are exported for
<a href=#51 id=51 data-nosnippet>51</a> // internal use. Note however that some are not _currently_ named by
<a href=#52 id=52 data-nosnippet>52</a> // consuming code.
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> // Not using parking_lot in Miri due to &lt;https://github.com/Amanieu/parking_lot/issues/477&gt;.
<a href=#55 id=55 data-nosnippet>55</a> </span><span class="attr">#[cfg(all(feature = <span class="string">"parking_lot"</span>, not(miri)))]
<a href=#56 id=56 data-nosnippet>56</a> #[allow(unused_imports)]
<a href=#57 id=57 data-nosnippet>57</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::parking_lot::{
<a href=#58 id=58 data-nosnippet>58</a> Condvar, Mutex, MutexGuard, RwLock, RwLockReadGuard, WaitTimeoutResult,
<a href=#59 id=59 data-nosnippet>59</a> };
<a href=#60 id=60 data-nosnippet>60</a>
<a href=#61 id=61 data-nosnippet>61</a> <span class="attr">#[cfg(not(all(feature = <span class="string">"parking_lot"</span>, not(miri))))]
<a href=#62 id=62 data-nosnippet>62</a> #[allow(unused_imports)]
<a href=#63 id=63 data-nosnippet>63</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::sync::{Condvar, MutexGuard, RwLockReadGuard, WaitTimeoutResult};
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a> <span class="attr">#[cfg(not(all(feature = <span class="string">"parking_lot"</span>, not(miri))))]
<a href=#66 id=66 data-nosnippet>66</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::mutex::Mutex;
<a href=#67 id=67 data-nosnippet>67</a>
<a href=#68 id=68 data-nosnippet>68</a> <span class="attr">#[cfg(not(all(feature = <span class="string">"parking_lot"</span>, not(miri))))]
<a href=#69 id=69 data-nosnippet>69</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::rwlock::RwLock;
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>atomic {
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::atomic_u16::AtomicU16;
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::atomic_u32::AtomicU32;
<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::atomic_u64::{AtomicU64, StaticAtomicU64};
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::loom::std::atomic_usize::AtomicUsize;
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::sync::atomic::{fence, AtomicBool, AtomicPtr, AtomicU8, Ordering};
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">super</span>::barrier::Barrier;
<a href=#81 id=81 data-nosnippet>81</a>}
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>sys {
<a href=#84 id=84 data-nosnippet>84</a> <span class="attr">#[cfg(feature = <span class="string">"rt-multi-thread"</span>)]
<a href=#85 id=85 data-nosnippet>85</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>num_cpus() -&gt; usize {
<a href=#86 id=86 data-nosnippet>86</a> <span class="kw">use </span>std::num::NonZeroUsize;
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">const </span>ENV_WORKER_THREADS: <span class="kw-2">&amp;</span>str = <span class="string">"TOKIO_WORKER_THREADS"</span>;
<a href=#89 id=89 data-nosnippet>89</a>
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">match </span>std::env::var(ENV_WORKER_THREADS) {
<a href=#91 id=91 data-nosnippet>91</a> <span class="prelude-val">Ok</span>(s) =&gt; {
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">let </span>n = s.parse().unwrap_or_else(|e| {
<a href=#93 id=93 data-nosnippet>93</a> <span class="macro">panic!</span>(<span class="string">"\"{ENV_WORKER_THREADS}\" must be usize, error: {e}, value: {s}"</span>)
<a href=#94 id=94 data-nosnippet>94</a> });
<a href=#95 id=95 data-nosnippet>95</a> <span class="macro">assert!</span>(n &gt; <span class="number">0</span>, <span class="string">"\"{ENV_WORKER_THREADS}\" cannot be set to 0"</span>);
<a href=#96 id=96 data-nosnippet>96</a> n
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a> <span class="prelude-val">Err</span>(std::env::VarError::NotPresent) =&gt; {
<a href=#99 id=99 data-nosnippet>99</a> std::thread::available_parallelism().map_or(<span class="number">1</span>, NonZeroUsize::get)
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a> <span class="prelude-val">Err</span>(std::env::VarError::NotUnicode(e)) =&gt; {
<a href=#102 id=102 data-nosnippet>102</a> <span class="macro">panic!</span>(<span class="string">"\"{ENV_WORKER_THREADS}\" must be valid unicode, error: {e:?}"</span>)
<a href=#103 id=103 data-nosnippet>103</a> }
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a> <span class="attr">#[cfg(not(feature = <span class="string">"rt-multi-thread"</span>))]
<a href=#108 id=108 data-nosnippet>108</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>num_cpus() -&gt; usize {
<a href=#109 id=109 data-nosnippet>109</a> <span class="number">1
<a href=#110 id=110 data-nosnippet>110</a> </span>}
<a href=#111 id=111 data-nosnippet>111</a>}
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>thread {
<a href=#114 id=114 data-nosnippet>114</a> <span class="attr">#[inline]
<a href=#115 id=115 data-nosnippet>115</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>yield_now() {
<a href=#116 id=116 data-nosnippet>116</a> std::hint::spin_loop();
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a> <span class="attr">#[allow(unused_imports)]
<a href=#120 id=120 data-nosnippet>120</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>std::thread::{
<a href=#121 id=121 data-nosnippet>121</a> current, panicking, park, park_timeout, sleep, spawn, AccessError, Builder, JoinHandle,
<a href=#122 id=122 data-nosnippet>122</a> LocalKey, <span class="prelude-ty">Result</span>, Thread, ThreadId,
<a href=#123 id=123 data-nosnippet>123</a> };
<a href=#124 id=124 data-nosnippet>124</a>}
</code></pre></div></section></main></body></html>
@@ -0,0 +1,37 @@
<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/mutex.rs`."><title>mutex.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>mutex.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::sync::{<span class="self">self</span>, MutexGuard, TryLockError};
<a href=#2 id=2 data-nosnippet>2</a>
<a href=#3 id=3 data-nosnippet>3</a><span class="doccomment">/// Adapter for `std::Mutex` that removes the poisoning aspects
<a href=#4 id=4 data-nosnippet>4</a>/// from its API.
<a href=#5 id=5 data-nosnippet>5</a></span><span class="attr">#[derive(Debug)]
<a href=#6 id=6 data-nosnippet>6</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Mutex&lt;T: <span class="question-mark">?</span>Sized&gt;(sync::Mutex&lt;T&gt;);
<a href=#7 id=7 data-nosnippet>7</a>
<a href=#8 id=8 data-nosnippet>8</a><span class="attr">#[allow(dead_code)]
<a href=#9 id=9 data-nosnippet>9</a></span><span class="kw">impl</span>&lt;T&gt; Mutex&lt;T&gt; {
<a href=#10 id=10 data-nosnippet>10</a> <span class="attr">#[inline]
<a href=#11 id=11 data-nosnippet>11</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(t: T) -&gt; Mutex&lt;T&gt; {
<a href=#12 id=12 data-nosnippet>12</a> Mutex(sync::Mutex::new(t))
<a href=#13 id=13 data-nosnippet>13</a> }
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a> <span class="attr">#[inline]
<a href=#16 id=16 data-nosnippet>16</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>const_new(t: T) -&gt; Mutex&lt;T&gt; {
<a href=#17 id=17 data-nosnippet>17</a> Mutex(sync::Mutex::new(t))
<a href=#18 id=18 data-nosnippet>18</a> }
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a> <span class="attr">#[inline]
<a href=#21 id=21 data-nosnippet>21</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>lock(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; MutexGuard&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#22 id=22 data-nosnippet>22</a> <span class="kw">match </span><span class="self">self</span>.<span class="number">0</span>.lock() {
<a href=#23 id=23 data-nosnippet>23</a> <span class="prelude-val">Ok</span>(guard) =&gt; guard,
<a href=#24 id=24 data-nosnippet>24</a> <span class="prelude-val">Err</span>(p_err) =&gt; p_err.into_inner(),
<a href=#25 id=25 data-nosnippet>25</a> }
<a href=#26 id=26 data-nosnippet>26</a> }
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a> <span class="attr">#[inline]
<a href=#29 id=29 data-nosnippet>29</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_lock(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;MutexGuard&lt;<span class="lifetime">'_</span>, T&gt;&gt; {
<a href=#30 id=30 data-nosnippet>30</a> <span class="kw">match </span><span class="self">self</span>.<span class="number">0</span>.try_lock() {
<a href=#31 id=31 data-nosnippet>31</a> <span class="prelude-val">Ok</span>(guard) =&gt; <span class="prelude-val">Some</span>(guard),
<a href=#32 id=32 data-nosnippet>32</a> <span class="prelude-val">Err</span>(TryLockError::Poisoned(p_err)) =&gt; <span class="prelude-val">Some</span>(p_err.into_inner()),
<a href=#33 id=33 data-nosnippet>33</a> <span class="prelude-val">Err</span>(TryLockError::WouldBlock) =&gt; <span class="prelude-val">None</span>,
<a href=#34 id=34 data-nosnippet>34</a> }
<a href=#35 id=35 data-nosnippet>35</a> }
<a href=#36 id=36 data-nosnippet>36</a>}
</code></pre></div></section></main></body></html>
@@ -0,0 +1,196 @@
<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/parking_lot.rs`."><title>parking_lot.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>parking_lot.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! A minimal adaption of the `parking_lot` synchronization primitives to the
<a href=#2 id=2 data-nosnippet>2</a>//! equivalent `std::sync` types.
<a href=#3 id=3 data-nosnippet>3</a>//!
<a href=#4 id=4 data-nosnippet>4</a>//! This can be extended to additional types/methods as required.
<a href=#5 id=5 data-nosnippet>5</a>
<a href=#6 id=6 data-nosnippet>6</a></span><span class="kw">use </span>std::fmt;
<a href=#7 id=7 data-nosnippet>7</a><span class="kw">use </span>std::marker::PhantomData;
<a href=#8 id=8 data-nosnippet>8</a><span class="kw">use </span>std::ops::{Deref, DerefMut};
<a href=#9 id=9 data-nosnippet>9</a><span class="kw">use </span>std::sync::{LockResult, TryLockError};
<a href=#10 id=10 data-nosnippet>10</a><span class="kw">use </span>std::time::Duration;
<a href=#11 id=11 data-nosnippet>11</a>
<a href=#12 id=12 data-nosnippet>12</a><span class="comment">// All types in this file are marked with PhantomData to ensure that
<a href=#13 id=13 data-nosnippet>13</a>// parking_lot's send_guard feature does not leak through and affect when Tokio
<a href=#14 id=14 data-nosnippet>14</a>// types are Send.
<a href=#15 id=15 data-nosnippet>15</a>//
<a href=#16 id=16 data-nosnippet>16</a>// See &lt;https://github.com/tokio-rs/tokio/pull/4359&gt; for more info.
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a>// Types that do not need wrapping
<a href=#19 id=19 data-nosnippet>19</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>parking_lot::WaitTimeoutResult;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="attr">#[derive(Debug)]
<a href=#22 id=22 data-nosnippet>22</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Mutex&lt;T: <span class="question-mark">?</span>Sized&gt;(PhantomData&lt;std::sync::Mutex&lt;T&gt;&gt;, parking_lot::Mutex&lt;T&gt;);
<a href=#23 id=23 data-nosnippet>23</a>
<a href=#24 id=24 data-nosnippet>24</a><span class="attr">#[derive(Debug)]
<a href=#25 id=25 data-nosnippet>25</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLock&lt;T&gt;(PhantomData&lt;std::sync::RwLock&lt;T&gt;&gt;, parking_lot::RwLock&lt;T&gt;);
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="attr">#[derive(Debug)]
<a href=#28 id=28 data-nosnippet>28</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Condvar(PhantomData&lt;std::sync::Condvar&gt;, parking_lot::Condvar);
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="attr">#[derive(Debug)]
<a href=#31 id=31 data-nosnippet>31</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>MutexGuard&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt;(
<a href=#32 id=32 data-nosnippet>32</a> PhantomData&lt;std::sync::MutexGuard&lt;<span class="lifetime">'a</span>, T&gt;&gt;,
<a href=#33 id=33 data-nosnippet>33</a> parking_lot::MutexGuard&lt;<span class="lifetime">'a</span>, T&gt;,
<a href=#34 id=34 data-nosnippet>34</a>);
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="attr">#[derive(Debug)]
<a href=#37 id=37 data-nosnippet>37</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLockReadGuard&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt;(
<a href=#38 id=38 data-nosnippet>38</a> PhantomData&lt;std::sync::RwLockReadGuard&lt;<span class="lifetime">'a</span>, T&gt;&gt;,
<a href=#39 id=39 data-nosnippet>39</a> parking_lot::RwLockReadGuard&lt;<span class="lifetime">'a</span>, T&gt;,
<a href=#40 id=40 data-nosnippet>40</a>);
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="attr">#[derive(Debug)]
<a href=#43 id=43 data-nosnippet>43</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLockWriteGuard&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt;(
<a href=#44 id=44 data-nosnippet>44</a> PhantomData&lt;std::sync::RwLockWriteGuard&lt;<span class="lifetime">'a</span>, T&gt;&gt;,
<a href=#45 id=45 data-nosnippet>45</a> parking_lot::RwLockWriteGuard&lt;<span class="lifetime">'a</span>, T&gt;,
<a href=#46 id=46 data-nosnippet>46</a>);
<a href=#47 id=47 data-nosnippet>47</a>
<a href=#48 id=48 data-nosnippet>48</a><span class="kw">impl</span>&lt;T&gt; Mutex&lt;T&gt; {
<a href=#49 id=49 data-nosnippet>49</a> <span class="attr">#[inline]
<a href=#50 id=50 data-nosnippet>50</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(t: T) -&gt; Mutex&lt;T&gt; {
<a href=#51 id=51 data-nosnippet>51</a> Mutex(PhantomData, parking_lot::Mutex::new(t))
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="attr">#[inline]
<a href=#55 id=55 data-nosnippet>55</a> #[cfg(not(all(loom, test)))]
<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>const_new(t: T) -&gt; Mutex&lt;T&gt; {
<a href=#57 id=57 data-nosnippet>57</a> Mutex(PhantomData, parking_lot::const_mutex(t))
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a> <span class="attr">#[inline]
<a href=#61 id=61 data-nosnippet>61</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>lock(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; MutexGuard&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#62 id=62 data-nosnippet>62</a> MutexGuard(PhantomData, <span class="self">self</span>.<span class="number">1</span>.lock())
<a href=#63 id=63 data-nosnippet>63</a> }
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a> <span class="attr">#[inline]
<a href=#66 id=66 data-nosnippet>66</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_lock(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;MutexGuard&lt;<span class="lifetime">'_</span>, T&gt;&gt; {
<a href=#67 id=67 data-nosnippet>67</a> <span class="self">self</span>.<span class="number">1
<a href=#68 id=68 data-nosnippet>68</a> </span>.try_lock()
<a href=#69 id=69 data-nosnippet>69</a> .map(|guard| MutexGuard(PhantomData, guard))
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a> <span class="attr">#[inline]
<a href=#73 id=73 data-nosnippet>73</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>get_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
<a href=#74 id=74 data-nosnippet>74</a> <span class="self">self</span>.<span class="number">1</span>.get_mut()
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="comment">// Note: Additional methods `is_poisoned` and `into_inner`, can be
<a href=#78 id=78 data-nosnippet>78</a> // provided here as needed.
<a href=#79 id=79 data-nosnippet>79</a></span>}
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt; Deref <span class="kw">for </span>MutexGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">type </span>Target = T;
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
<a href=#84 id=84 data-nosnippet>84</a> <span class="self">self</span>.<span class="number">1</span>.deref()
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>}
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt; DerefMut <span class="kw">for </span>MutexGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">fn </span>deref_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
<a href=#90 id=90 data-nosnippet>90</a> <span class="self">self</span>.<span class="number">1</span>.deref_mut()
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>}
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a><span class="kw">impl</span>&lt;T&gt; RwLock&lt;T&gt; {
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(t: T) -&gt; RwLock&lt;T&gt; {
<a href=#96 id=96 data-nosnippet>96</a> RwLock(PhantomData, parking_lot::RwLock::new(t))
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>read(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; RwLockReadGuard&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#100 id=100 data-nosnippet>100</a> RwLockReadGuard(PhantomData, <span class="self">self</span>.<span class="number">1</span>.read())
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_read(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;RwLockReadGuard&lt;<span class="lifetime">'_</span>, T&gt;&gt; {
<a href=#104 id=104 data-nosnippet>104</a> <span class="self">self</span>.<span class="number">1
<a href=#105 id=105 data-nosnippet>105</a> </span>.try_read()
<a href=#106 id=106 data-nosnippet>106</a> .map(|guard| RwLockReadGuard(PhantomData, guard))
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; RwLockWriteGuard&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#110 id=110 data-nosnippet>110</a> RwLockWriteGuard(PhantomData, <span class="self">self</span>.<span class="number">1</span>.write())
<a href=#111 id=111 data-nosnippet>111</a> }
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_write(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;RwLockWriteGuard&lt;<span class="lifetime">'_</span>, T&gt;&gt; {
<a href=#114 id=114 data-nosnippet>114</a> <span class="self">self</span>.<span class="number">1
<a href=#115 id=115 data-nosnippet>115</a> </span>.try_write()
<a href=#116 id=116 data-nosnippet>116</a> .map(|guard| RwLockWriteGuard(PhantomData, guard))
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a>}
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt; Deref <span class="kw">for </span>RwLockReadGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">type </span>Target = T;
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
<a href=#123 id=123 data-nosnippet>123</a> <span class="self">self</span>.<span class="number">1</span>.deref()
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>}
<a href=#126 id=126 data-nosnippet>126</a>
<a href=#127 id=127 data-nosnippet>127</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt; Deref <span class="kw">for </span>RwLockWriteGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#128 id=128 data-nosnippet>128</a> <span class="kw">type </span>Target = T;
<a href=#129 id=129 data-nosnippet>129</a> <span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
<a href=#130 id=130 data-nosnippet>130</a> <span class="self">self</span>.<span class="number">1</span>.deref()
<a href=#131 id=131 data-nosnippet>131</a> }
<a href=#132 id=132 data-nosnippet>132</a>}
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized&gt; DerefMut <span class="kw">for </span>RwLockWriteGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">fn </span>deref_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
<a href=#136 id=136 data-nosnippet>136</a> <span class="self">self</span>.<span class="number">1</span>.deref_mut()
<a href=#137 id=137 data-nosnippet>137</a> }
<a href=#138 id=138 data-nosnippet>138</a>}
<a href=#139 id=139 data-nosnippet>139</a>
<a href=#140 id=140 data-nosnippet>140</a><span class="kw">impl </span>Condvar {
<a href=#141 id=141 data-nosnippet>141</a> <span class="attr">#[inline]
<a href=#142 id=142 data-nosnippet>142</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new() -&gt; Condvar {
<a href=#143 id=143 data-nosnippet>143</a> Condvar(PhantomData, parking_lot::Condvar::new())
<a href=#144 id=144 data-nosnippet>144</a> }
<a href=#145 id=145 data-nosnippet>145</a>
<a href=#146 id=146 data-nosnippet>146</a> <span class="attr">#[inline]
<a href=#147 id=147 data-nosnippet>147</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>notify_one(<span class="kw-2">&amp;</span><span class="self">self</span>) {
<a href=#148 id=148 data-nosnippet>148</a> <span class="self">self</span>.<span class="number">1</span>.notify_one();
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a>
<a href=#151 id=151 data-nosnippet>151</a> <span class="attr">#[inline]
<a href=#152 id=152 data-nosnippet>152</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>notify_all(<span class="kw-2">&amp;</span><span class="self">self</span>) {
<a href=#153 id=153 data-nosnippet>153</a> <span class="self">self</span>.<span class="number">1</span>.notify_all();
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a> <span class="attr">#[inline]
<a href=#157 id=157 data-nosnippet>157</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wait&lt;<span class="lifetime">'a</span>, T&gt;(
<a href=#158 id=158 data-nosnippet>158</a> <span class="kw-2">&amp;</span><span class="self">self</span>,
<a href=#159 id=159 data-nosnippet>159</a> <span class="kw-2">mut </span>guard: MutexGuard&lt;<span class="lifetime">'a</span>, T&gt;,
<a href=#160 id=160 data-nosnippet>160</a> ) -&gt; LockResult&lt;MutexGuard&lt;<span class="lifetime">'a</span>, T&gt;&gt; {
<a href=#161 id=161 data-nosnippet>161</a> <span class="self">self</span>.<span class="number">1</span>.wait(<span class="kw-2">&amp;mut </span>guard.<span class="number">1</span>);
<a href=#162 id=162 data-nosnippet>162</a> <span class="prelude-val">Ok</span>(guard)
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="attr">#[inline]
<a href=#166 id=166 data-nosnippet>166</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wait_timeout&lt;<span class="lifetime">'a</span>, T&gt;(
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw-2">&amp;</span><span class="self">self</span>,
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw-2">mut </span>guard: MutexGuard&lt;<span class="lifetime">'a</span>, T&gt;,
<a href=#169 id=169 data-nosnippet>169</a> timeout: Duration,
<a href=#170 id=170 data-nosnippet>170</a> ) -&gt; LockResult&lt;(MutexGuard&lt;<span class="lifetime">'a</span>, T&gt;, WaitTimeoutResult)&gt; {
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">let </span>wtr = <span class="self">self</span>.<span class="number">1</span>.wait_for(<span class="kw-2">&amp;mut </span>guard.<span class="number">1</span>, timeout);
<a href=#172 id=172 data-nosnippet>172</a> <span class="prelude-val">Ok</span>((guard, wtr))
<a href=#173 id=173 data-nosnippet>173</a> }
<a href=#174 id=174 data-nosnippet>174</a>
<a href=#175 id=175 data-nosnippet>175</a> <span class="comment">// Note: Additional methods `wait_timeout_ms`, `wait_timeout_until`,
<a href=#176 id=176 data-nosnippet>176</a> // `wait_until` can be provided here as needed.
<a href=#177 id=177 data-nosnippet>177</a></span>}
<a href=#178 id=178 data-nosnippet>178</a>
<a href=#179 id=179 data-nosnippet>179</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized + fmt::Display&gt; fmt::Display <span class="kw">for </span>MutexGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#180 id=180 data-nosnippet>180</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#181 id=181 data-nosnippet>181</a> fmt::Display::fmt(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">1</span>, f)
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a>}
<a href=#184 id=184 data-nosnippet>184</a>
<a href=#185 id=185 data-nosnippet>185</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized + fmt::Display&gt; fmt::Display <span class="kw">for </span>RwLockReadGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#187 id=187 data-nosnippet>187</a> fmt::Display::fmt(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">1</span>, f)
<a href=#188 id=188 data-nosnippet>188</a> }
<a href=#189 id=189 data-nosnippet>189</a>}
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized + fmt::Display&gt; fmt::Display <span class="kw">for </span>RwLockWriteGuard&lt;<span class="lifetime">'a</span>, T&gt; {
<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<a href=#193 id=193 data-nosnippet>193</a> fmt::Display::fmt(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">1</span>, f)
<a href=#194 id=194 data-nosnippet>194</a> }
<a href=#195 id=195 data-nosnippet>195</a>}
</code></pre></div></section></main></body></html>
@@ -0,0 +1,49 @@
<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/rwlock.rs`."><title>rwlock.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>rwlock.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::sync::{<span class="self">self</span>, RwLockReadGuard, RwLockWriteGuard, TryLockError};
<a href=#2 id=2 data-nosnippet>2</a>
<a href=#3 id=3 data-nosnippet>3</a><span class="doccomment">/// Adapter for `std::sync::RwLock` that removes the poisoning aspects
<a href=#4 id=4 data-nosnippet>4</a>/// from its api.
<a href=#5 id=5 data-nosnippet>5</a></span><span class="attr">#[derive(Debug)]
<a href=#6 id=6 data-nosnippet>6</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLock&lt;T: <span class="question-mark">?</span>Sized&gt;(sync::RwLock&lt;T&gt;);
<a href=#7 id=7 data-nosnippet>7</a>
<a href=#8 id=8 data-nosnippet>8</a><span class="attr">#[allow(dead_code)]
<a href=#9 id=9 data-nosnippet>9</a></span><span class="kw">impl</span>&lt;T&gt; RwLock&lt;T&gt; {
<a href=#10 id=10 data-nosnippet>10</a> <span class="attr">#[inline]
<a href=#11 id=11 data-nosnippet>11</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(t: T) -&gt; <span class="self">Self </span>{
<a href=#12 id=12 data-nosnippet>12</a> <span class="self">Self</span>(sync::RwLock::new(t))
<a href=#13 id=13 data-nosnippet>13</a> }
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a> <span class="attr">#[inline]
<a href=#16 id=16 data-nosnippet>16</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>read(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; RwLockReadGuard&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">match </span><span class="self">self</span>.<span class="number">0</span>.read() {
<a href=#18 id=18 data-nosnippet>18</a> <span class="prelude-val">Ok</span>(guard) =&gt; guard,
<a href=#19 id=19 data-nosnippet>19</a> <span class="prelude-val">Err</span>(p_err) =&gt; p_err.into_inner(),
<a href=#20 id=20 data-nosnippet>20</a> }
<a href=#21 id=21 data-nosnippet>21</a> }
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a> <span class="attr">#[inline]
<a href=#24 id=24 data-nosnippet>24</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_read(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;RwLockReadGuard&lt;<span class="lifetime">'_</span>, T&gt;&gt; {
<a href=#25 id=25 data-nosnippet>25</a> <span class="kw">match </span><span class="self">self</span>.<span class="number">0</span>.try_read() {
<a href=#26 id=26 data-nosnippet>26</a> <span class="prelude-val">Ok</span>(guard) =&gt; <span class="prelude-val">Some</span>(guard),
<a href=#27 id=27 data-nosnippet>27</a> <span class="prelude-val">Err</span>(TryLockError::Poisoned(p_err)) =&gt; <span class="prelude-val">Some</span>(p_err.into_inner()),
<a href=#28 id=28 data-nosnippet>28</a> <span class="prelude-val">Err</span>(TryLockError::WouldBlock) =&gt; <span class="prelude-val">None</span>,
<a href=#29 id=29 data-nosnippet>29</a> }
<a href=#30 id=30 data-nosnippet>30</a> }
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a> <span class="attr">#[inline]
<a href=#33 id=33 data-nosnippet>33</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; RwLockWriteGuard&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">match </span><span class="self">self</span>.<span class="number">0</span>.write() {
<a href=#35 id=35 data-nosnippet>35</a> <span class="prelude-val">Ok</span>(guard) =&gt; guard,
<a href=#36 id=36 data-nosnippet>36</a> <span class="prelude-val">Err</span>(p_err) =&gt; p_err.into_inner(),
<a href=#37 id=37 data-nosnippet>37</a> }
<a href=#38 id=38 data-nosnippet>38</a> }
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a> <span class="attr">#[inline]
<a href=#41 id=41 data-nosnippet>41</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_write(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;RwLockWriteGuard&lt;<span class="lifetime">'_</span>, T&gt;&gt; {
<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">match </span><span class="self">self</span>.<span class="number">0</span>.try_write() {
<a href=#43 id=43 data-nosnippet>43</a> <span class="prelude-val">Ok</span>(guard) =&gt; <span class="prelude-val">Some</span>(guard),
<a href=#44 id=44 data-nosnippet>44</a> <span class="prelude-val">Err</span>(TryLockError::Poisoned(p_err)) =&gt; <span class="prelude-val">Some</span>(p_err.into_inner()),
<a href=#45 id=45 data-nosnippet>45</a> <span class="prelude-val">Err</span>(TryLockError::WouldBlock) =&gt; <span class="prelude-val">None</span>,
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>}
</code></pre></div></section></main></body></html>
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<!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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/unsafe_cell.rs`."><title>unsafe_cell.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>unsafe_cell.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="attr">#[derive(Debug)]
<a href=#2 id=2 data-nosnippet>2</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>UnsafeCell&lt;T&gt;(std::cell::UnsafeCell&lt;T&gt;);
<a href=#3 id=3 data-nosnippet>3</a>
<a href=#4 id=4 data-nosnippet>4</a><span class="kw">impl</span>&lt;T&gt; UnsafeCell&lt;T&gt; {
<a href=#5 id=5 data-nosnippet>5</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>new(data: T) -&gt; UnsafeCell&lt;T&gt; {
<a href=#6 id=6 data-nosnippet>6</a> UnsafeCell(std::cell::UnsafeCell::new(data))
<a href=#7 id=7 data-nosnippet>7</a> }
<a href=#8 id=8 data-nosnippet>8</a>
<a href=#9 id=9 data-nosnippet>9</a> <span class="attr">#[inline(always)]
<a href=#10 id=10 data-nosnippet>10</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>with&lt;R&gt;(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw">impl </span>FnOnce(<span class="kw-2">*const </span>T) -&gt; R) -&gt; R {
<a href=#11 id=11 data-nosnippet>11</a> f(<span class="self">self</span>.<span class="number">0</span>.get())
<a href=#12 id=12 data-nosnippet>12</a> }
<a href=#13 id=13 data-nosnippet>13</a>
<a href=#14 id=14 data-nosnippet>14</a> <span class="attr">#[inline(always)]
<a href=#15 id=15 data-nosnippet>15</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>with_mut&lt;R&gt;(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw">impl </span>FnOnce(<span class="kw-2">*mut </span>T) -&gt; R) -&gt; R {
<a href=#16 id=16 data-nosnippet>16</a> f(<span class="self">self</span>.<span class="number">0</span>.get())
<a href=#17 id=17 data-nosnippet>17</a> }
<a href=#18 id=18 data-nosnippet>18</a>}
</code></pre></div></section></main></body></html>