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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="API documentation for the Rust `RawRwLockRecursive` trait in crate `lock_api`."><meta name="keywords" content="rust, rustlang, rust-lang, RawRwLockRecursive"><title>lock_api::RawRwLockRecursive - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../lock_api/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><p class='location'>Trait RawRwLockRecursive</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.lock_shared_recursive">lock_shared_recursive</a><a href="#tymethod.try_lock_shared_recursive">try_lock_shared_recursive</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>lock_api</a></p><script>window.sidebarCurrent = {name: 'RawRwLockRecursive', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../src/lock_api/rwlock.rs.html#128-134' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='index.html'>lock_api</a>::<wbr><a class="trait" href=''>RawRwLockRecursive</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub unsafe trait RawRwLockRecursive: <a class="trait" href="../lock_api/trait.RawRwLock.html" title="trait lock_api::RawRwLock">RawRwLock</a> {
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fn <a href='#tymethod.lock_shared_recursive' class='fnname'>lock_shared_recursive</a>(&self);
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<div class='item-spacer'></div> fn <a href='#tymethod.try_lock_shared_recursive' class='fnname'>try_lock_shared_recursive</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
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}</pre></div><div class='docblock'><p>Additional methods for RwLocks which support recursive read locks.</p>
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<p>These are guaranteed to succeed without blocking if
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another read lock is held at the time of the call. This allows a thread
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to recursively lock a <code>RwLock</code>. However using this method can cause
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writers to starve since readers no longer block if a writer is waiting
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for the lock.</p>
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</div>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.lock_shared_recursive' class='method'><code id='lock_shared_recursive.v'>fn <a href='#tymethod.lock_shared_recursive' class='fnname'>lock_shared_recursive</a>(&self)</code></h3><div class='docblock'><p>Acquires a shared lock without deadlocking in case of a recursive lock.</p>
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</div><h3 id='tymethod.try_lock_shared_recursive' class='method'><code id='try_lock_shared_recursive.v'>fn <a href='#tymethod.try_lock_shared_recursive' class='fnname'>try_lock_shared_recursive</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><div class='docblock'><p>Attempts to acquire a shared lock without deadlocking in case of a recursive lock.</p>
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