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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="An RAII read lock guard returned by `RwLockReadGuard::map`, which can point to a subfield of the protected data."><title>MappedRwLockReadGuard in parking_lot - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.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" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../static.files/rustdoc-42caa33d.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="parking_lot" data-themes="" data-resource-suffix="" data-rustdoc-version="1.84.1 (e71f9a9a9 2025-01-27)" data-channel="1.84.1" data-search-js="search-92e6798f.js" data-settings-js="settings-0f613d39.js" ><script src="../static.files/storage-59e33391.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc type"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../parking_lot/index.html">parking_<wbr>lot</a><span class="version">0.12.3</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Mapped<wbr>RwLock<wbr>Read<wbr>Guard</a></h2><h3><a href="#aliased-type">Aliased type</a></h3></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="index.html">In crate parking_<wbr>lot</a></h2></div></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><span class="rustdoc-breadcrumbs"><a href="index.html">parking_lot</a></span><h1>Type Alias <span class="type">MappedRwLockReadGuard</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../src/parking_lot/rwlock.rs.html#112">Source</a> </span></div><pre class="rust item-decl"><code>pub type MappedRwLockReadGuard<'a, T> = <a class="struct" href="../lock_api/rwlock/struct.MappedRwLockReadGuard.html" title="struct lock_api::rwlock::MappedRwLockReadGuard">MappedRwLockReadGuard</a><'a, <a class="struct" href="struct.RawRwLock.html" title="struct parking_lot::RawRwLock">RawRwLock</a>, T>;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>An RAII read lock guard returned by <code>RwLockReadGuard::map</code>, which can point to a
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subfield of the protected data.</p>
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<p>The main difference between <code>MappedRwLockReadGuard</code> and <code>RwLockReadGuard</code> is that the
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former doesn’t support temporarily unlocking and re-locking, since that
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could introduce soundness issues if the locked object is modified by another
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thread.</p>
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</div></details><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>struct MappedRwLockReadGuard<'a, T> { <span class="comment">/* private fields */</span> }</code></pre><script src="../type.impl/lock_api/rwlock/struct.MappedRwLockReadGuard.js" data-self-path="parking_lot::rwlock::MappedRwLockReadGuard" async></script></section></div></main></body></html> |