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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 `RwLockUpgradableReadGuard` struct in crate `lock_api`."><meta name="keywords" content="rust, rustlang, rust-lang, RwLockUpgradableReadGuard"><title>lock_api::RwLockUpgradableReadGuard - 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></head><body class="rustdoc struct"><!--[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">&#9776;</div><p class='location'>Struct RwLockUpgradableReadGuard</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.rwlock">rwlock</a><a href="#method.unlocked">unlocked</a><a href="#method.upgrade">upgrade</a><a href="#method.try_upgrade">try_upgrade</a><a href="#method.unlock_fair">unlock_fair</a><a href="#method.unlocked_fair">unlocked_fair</a><a href="#method.bump">bump</a><a href="#method.downgrade">downgrade</a><a href="#method.try_upgrade_for">try_upgrade_for</a><a href="#method.try_upgrade_until">try_upgrade_until</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Sync">Sync</a><a href="#impl-Deref">Deref</a><a href="#impl-Drop">Drop</a><a href="#impl-StableAddress">StableAddress</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a></div></div><p class='location'><a href='index.html'>lock_api</a></p><script>window.sidebarCurrent = {name: 'RwLockUpgradableReadGuard', ty: 'struct', 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"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><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='in-band'>Struct <a href='index.html'>lock_api</a>::<wbr><a class="struct" href=''>RwLockUpgradableReadGuard</a></span><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'>&#x2212;</span>]</a></span><a class='srclink' href='../src/lock_api/rwlock.rs.html#1016-1019' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust struct'><div class="docblock attributes">#[must_use]
</div>pub struct RwLockUpgradableReadGuard&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgrade.html" title="trait lock_api::RawRwLockUpgrade">RawRwLockUpgrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; { /* fields omitted */ }</pre></div><div class='docblock'><p>RAII structure used to release the upgradable read access of a lock when
dropped.</p>
</div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgrade.html" title="trait lock_api::RawRwLockUpgrade">RawRwLockUpgrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1025-1072' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.rwlock' class="method"><span id='rwlock.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.rwlock' class='fnname'>rwlock</a>(s: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Self) -&gt; &amp;'a <a class="struct" href="../lock_api/struct.RwLock.html" title="struct lock_api::RwLock">RwLock</a>&lt;R, T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1027-1029' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a reference to the original reader-writer lock object.</p>
</div><h4 id='method.unlocked' class="method"><span id='unlocked.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.unlocked' class='fnname'>unlocked</a>&lt;F, U&gt;(s: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>Self, f: F) -&gt; U <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -&gt; U,&nbsp;</span></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1036-1043' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Temporarily unlocks the <code>RwLock</code> to execute the given function.</p>
<p>This is safe because <code>&amp;mut</code> guarantees that there exist no other
references to the data protected by the <code>RwLock</code>.</p>
</div><h4 id='method.upgrade' class="method"><span id='upgrade.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.upgrade' class='fnname'>upgrade</a>(s: Self) -&gt; <a class="struct" href="../lock_api/struct.RwLockWriteGuard.html" title="struct lock_api::RwLockWriteGuard">RwLockWriteGuard</a>&lt;'a, R, T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1047-1055' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Atomically upgrades an upgradable read lock lock into a exclusive write lock,
blocking the current thread until it can be aquired.</p>
</div><h4 id='method.try_upgrade' class="method"><span id='try_upgrade.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.try_upgrade' class='fnname'>try_upgrade</a>(s: Self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="../lock_api/struct.RwLockWriteGuard.html" title="struct lock_api::RwLockWriteGuard">RwLockWriteGuard</a>&lt;'a, R, T&gt;, Self&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1060-1071' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Tries to atomically upgrade an upgradable read lock into a exclusive write lock.</p>
<p>If the access could not be granted at this time, then the current guard is returned.</p>
</div></div><h3 id='impl-1' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgradeFair.html" title="trait lock_api::RawRwLockUpgradeFair">RawRwLockUpgradeFair</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-1' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1074-1118' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.unlock_fair' class="method"><span id='unlock_fair.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.unlock_fair' class='fnname'>unlock_fair</a>(s: Self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1088-1091' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Unlocks the <code>RwLock</code> using a fair unlock protocol.</p>
<p>By default, <code>RwLock</code> is unfair and allow the current thread to re-lock
the <code>RwLock</code> before another has the chance to acquire the lock, even if
that thread has been blocked on the <code>RwLock</code> for a long time. This is
the default because it allows much higher throughput as it avoids
forcing a context switch on every <code>RwLock</code> unlock. This can result in one
thread acquiring a <code>RwLock</code> many more times than other threads.</p>
<p>However in some cases it can be beneficial to ensure fairness by forcing
the lock to pass on to a waiting thread if there is one. This is done by
using this method instead of dropping the <code>RwLockUpgradableReadGuard</code> normally.</p>
</div><h4 id='method.unlocked_fair' class="method"><span id='unlocked_fair.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.unlocked_fair' class='fnname'>unlocked_fair</a>&lt;F, U&gt;(s: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>Self, f: F) -&gt; U <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -&gt; U,&nbsp;</span></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1100-1107' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Temporarily unlocks the <code>RwLock</code> to execute the given function.</p>
<p>The <code>RwLock</code> is unlocked a fair unlock protocol.</p>
<p>This is safe because <code>&amp;mut</code> guarantees that there exist no other
references to the data protected by the <code>RwLock</code>.</p>
</div><h4 id='method.bump' class="method"><span id='bump.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.bump' class='fnname'>bump</a>(s: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>Self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1115-1117' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Temporarily yields the <code>RwLock</code> to a waiting thread if there is one.</p>
<p>This method is functionally equivalent to calling <code>unlock_fair</code> followed
by <code>upgradable_read</code>, however it can be much more efficient in the case where there
are no waiting threads.</p>
</div></div><h3 id='impl-2' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgradeDowngrade.html" title="trait lock_api::RawRwLockUpgradeDowngrade">RawRwLockUpgradeDowngrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-2' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1120-1137' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.downgrade' class="method"><span id='downgrade.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.downgrade' class='fnname'>downgrade</a>(s: Self) -&gt; <a class="struct" href="../lock_api/struct.RwLockReadGuard.html" title="struct lock_api::RwLockReadGuard">RwLockReadGuard</a>&lt;'a, R, T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1128-1136' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Atomically downgrades an upgradable read lock lock into a shared read lock
without allowing any writers to take exclusive access of the lock in the
meantime.</p>
<p>Note that if there are any writers currently waiting to take the lock
then other readers may not be able to acquire the lock even if it was
downgraded.</p>
</div></div><h3 id='impl-3' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgradeTimed.html" title="trait lock_api::RawRwLockUpgradeTimed">RawRwLockUpgradeTimed</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-3' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1139-1182' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.try_upgrade_for' class="method"><span id='try_upgrade_for.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.try_upgrade_for' class='fnname'>try_upgrade_for</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;s: Self, <br>&nbsp;&nbsp;&nbsp;&nbsp;timeout: R::<a class="type" href="../lock_api/trait.RawRwLockTimed.html#associatedtype.Duration" title="type lock_api::RawRwLockTimed::Duration">Duration</a><br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="../lock_api/struct.RwLockWriteGuard.html" title="struct lock_api::RwLockWriteGuard">RwLockWriteGuard</a>&lt;'a, R, T&gt;, Self&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1145-1159' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Tries to atomically upgrade an upgradable read lock into a exclusive
write lock, until a timeout is reached.</p>
<p>If the access could not be granted before the timeout expires, then
the current guard is returned.</p>
</div><h4 id='method.try_upgrade_until' class="method"><span id='try_upgrade_until.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.try_upgrade_until' class='fnname'>try_upgrade_until</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;s: Self, <br>&nbsp;&nbsp;&nbsp;&nbsp;timeout: R::<a class="type" href="../lock_api/trait.RawRwLockTimed.html#associatedtype.Instant" title="type lock_api::RawRwLockTimed::Instant">Instant</a><br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="../lock_api/struct.RwLockWriteGuard.html" title="struct lock_api::RwLockWriteGuard">RwLockWriteGuard</a>&lt;'a, R, T&gt;, Self&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1167-1181' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Tries to atomically upgrade an upgradable read lock into a exclusive
write lock, until a timeout is reached.</p>
<p>If the access could not be granted before the timeout expires, then
the current guard is returned.</p>
</div></div><h2 id='implementations' class='small-section-header'>Trait Implementations<a href='#implementations' class='anchor'></a></h2><div id='implementations-list'><h3 id='impl-Sync' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgrade.html" title="trait lock_api::RawRwLockUpgrade">RawRwLockUpgrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-Sync' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1021-1023' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Deref' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgrade.html" title="trait lock_api::RawRwLockUpgrade">RawRwLockUpgrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a> for <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-Deref' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1184-1190' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='associatedtype.Target' class="type"><span id='Target.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target' class="type">Target</a> = T</code></span></h4>
<div class='docblock'><p>The resulting type after dereferencing.</p>
</div><h4 id='method.deref' class="method"><span id='deref.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#tymethod.deref' class='fnname'>deref</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1187-1189' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Dereferences the value.</p>
</div></div><h3 id='impl-Drop' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgrade.html" title="trait lock_api::RawRwLockUpgrade">RawRwLockUpgrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html" title="trait core::ops::drop::Drop">Drop</a> for <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-Drop' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1192-1197' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.drop' class="method"><span id='drop.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop' class='fnname'>drop</a>(&amp;mut self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1194-1196' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Executes the destructor for this type. <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></p>
</div></div><h3 id='impl-StableAddress' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R:&nbsp;<a class="trait" href="../lock_api/trait.RawRwLockUpgrade.html" title="trait lock_api::RawRwLockUpgrade">RawRwLockUpgrade</a> + 'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + 'a&gt; <a class="trait" href="../stable_deref_trait/trait.StableDeref.html" title="trait stable_deref_trait::StableDeref">StableAddress</a> for <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt;</code><a href='#impl-StableAddress' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/lock_api/rwlock.rs.html#1200-1202' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'></div></div><h2 id='synthetic-implementations' class='small-section-header'>Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a></h2><div id='synthetic-implementations-list'><h3 id='impl-Send' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, R, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../lock_api/struct.RwLockUpgradableReadGuard.html" title="struct lock_api::RwLockUpgradableReadGuard">RwLockUpgradableReadGuard</a>&lt;'a, R, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;R as <a class="trait" href="../lock_api/trait.RawRwLock.html" title="trait lock_api::RawRwLock">RawRwLock</a>&gt;::<a class="type" href="../lock_api/trait.RawRwLock.html#associatedtype.GuardMarker" title="type lock_api::RawRwLock::GuardMarker">GuardMarker</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,&nbsp;</span></code><a href='#impl-Send' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>&#9166;</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "lock_api";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html>
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