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<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `RawRwLockDowngrade` trait in crate `lock_api`."><metaname="keywords"content="rust, rustlang, rust-lang, RawRwLockDowngrade"><title>lock_api::RawRwLockDowngrade - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="shortcut icon"href="../favicon.ico"><styletype="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><bodyclass="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../lock_api/index.html'><divclass='logo-container'><imgsrc='../rust-logo.png'alt='logo'></div></a><pclass='location'>Trait RawRwLockDowngrade</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#required-methods">Required Methods</a><divclass="sidebar-links"><ahref="#tymethod.downgrade">downgrade</a></div><aclass="sidebar-title"href="#implementors">Implementors</a></div><pclass='location'><ahref='index.html'>lock_api</a></p><script>window.sidebarCurrent={name:'RawRwLockDowngrade',ty:'trait',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/lock_api/rwlock.rs.html#91-95'title='goto source code'>[src]</a></span><spanclass='in-band'>Trait <ahref='index.html'>lock_api</a>::<wbr><aclass="trait"href=''>RawRwLockDowngrade</a></span></h1><divclass="docblock type-decl hidden-by-usual-hider"><preclass='rust trait'>pub unsafe trait RawRwLockDowngrade: <aclass="trait"href="../lock_api/trait.RawRwLock.html"title="trait lock_api::RawRwLock">RawRwLock</a> {
}</pre></div><divclass='docblock'><p>Additional methods for RwLocks which support atomically downgrading an
exclusive lock to a shared lock.</p>
</div>
<h2id='required-methods'class='small-section-header'>Required methods<ahref='#required-methods'class='anchor'></a></h2><divclass='methods'><h3id='tymethod.downgrade'class='method'><codeid='downgrade.v'>fn <ahref='#tymethod.downgrade'class='fnname'>downgrade</a>(&self)</code></h3><divclass='docblock'><p>Atomically downgrades an exclusive lock into a shared lock without
allowing any thread to take an exclusive lock in the meantime.</p>
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