| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-2.0.18/src/thread.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>thread.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../syn/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../syn/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span>std::fmt::{<span class="self">self</span>, Debug}; |
| <span class="kw">use </span>std::thread::{<span class="self">self</span>, ThreadId}; |
| |
| <span class="doccomment">/// ThreadBound is a Sync-maker and Send-maker that allows accessing a value |
| /// of type T only from the original thread on which the ThreadBound was |
| /// constructed. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>ThreadBound<T> { |
| value: T, |
| thread_id: ThreadId, |
| } |
| |
| <span class="kw">unsafe impl</span><T> Sync <span class="kw">for </span>ThreadBound<T> {} |
| |
| <span class="comment">// Send bound requires Copy, as otherwise Drop could run in the wrong place. |
| </span><span class="kw">unsafe impl</span><T: Copy> Send <span class="kw">for </span>ThreadBound<T> {} |
| |
| <span class="kw">impl</span><T> ThreadBound<T> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(value: T) -> <span class="self">Self </span>{ |
| ThreadBound { |
| value, |
| thread_id: thread::current().id(), |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>get(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>T> { |
| <span class="kw">if </span>thread::current().id() == <span class="self">self</span>.thread_id { |
| <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="self">self</span>.value) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| } |
| } |
| |
| <span class="kw">impl</span><T: Debug> Debug <span class="kw">for </span>ThreadBound<T> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">match </span><span class="self">self</span>.get() { |
| <span class="prelude-val">Some</span>(value) => Debug::fmt(value, formatter), |
| <span class="prelude-val">None </span>=> formatter.write_str(<span class="string">"unknown"</span>), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><T: Clone> Clone <span class="kw">for </span>ThreadBound<T> { |
| <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| ThreadBound { |
| value: <span class="self">self</span>.value.clone(), |
| thread_id: <span class="self">self</span>.thread_id, |
| } |
| } |
| } |
| </code></pre></div> |
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