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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="A guard that provides immutable data access but can be upgraded to `RwLockWriteGuard`."><title>RwLockUpgradableGuard in spin::rwlock - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.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-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-b0742ba02757f159.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="spin" data-themes="" data-resource-suffix="" data-rustdoc-version="1.83.0 (90b35a623 2024-11-26)" data-channel="1.83.0" data-search-js="search-f0d225181b97f9a4.js" data-settings-js="settings-805db61a62df4bd2.js" ><script src="../../static.files/storage-1d39b6787ed640ff.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-f070b9041d14864c.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-0111fcff984fae8f.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc struct"><!--[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="../../spin/index.html">spin</a><span class="version">0.9.8</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">RwLock<wbr>Upgradable<wbr>Guard</a></h2><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.downgrade" title="downgrade">downgrade</a></li><li><a href="#method.leak" title="leak">leak</a></li><li><a href="#method.try_upgrade" title="try_upgrade">try_upgrade</a></li><li><a href="#method.upgrade" title="upgrade">upgrade</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Debug-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" title="Debug">Debug</a></li><li><a href="#impl-Deref-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" title="Deref">Deref</a></li><li><a href="#impl-Display-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" title="Display">Display</a></li><li><a href="#impl-Drop-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" title="Drop">Drop</a></li><li><a href="#impl-Send-for-RwLockUpgradableGuard%3C'_,+T,+R%3E" title="Send">Send</a></li><li><a href="#impl-Sync-for-RwLockUpgradableGuard%3C'_,+T,+R%3E" title="Sync">Sync</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" title="!RefUnwindSafe">!RefUnwindSafe</a></li><li><a href="#impl-UnwindSafe-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" title="!UnwindSafe">!UnwindSafe</a></li><li><a href="#impl-Freeze-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" title="Freeze">Freeze</a></li><li><a href="#impl-Unpin-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" title="Unpin">Unpin</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T" title="Any">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T" title="Borrow<T>">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T" title="BorrowMut<T>">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-T" title="From<T>">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-T" title="Into<U>">Into<U></a></li><li><a href="#impl-TryFrom%3CU%3E-for-T" title="TryFrom<U>">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-T" title="TryInto<U>">TryInto<U></a></li></ul></section><div id="rustdoc-modnav"><h2><a href="index.html">In spin::<wbr>rwlock</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">spin</a>::<wbr><a href="index.html">rwlock</a></span><h1>Struct <span class="struct">RwLockUpgradableGuard</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/spin/rwlock.rs.html#104-108">source</a> </span></div><pre class="rust item-decl"><code>pub struct RwLockUpgradableGuard<'a, T: 'a + ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, R = <a class="struct" href="../relax/struct.Spin.html" title="struct spin::relax::Spin">Spin</a>> { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A guard that provides immutable data access but can be upgraded to <a href="struct.RwLockWriteGuard.html" title="struct spin::rwlock::RwLockWriteGuard"><code>RwLockWriteGuard</code></a>.</p>
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<p>No writers or other upgradeable guards can exist while this is in scope. New reader
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creation is prevented (to alleviate writer starvation) but there may be existing readers
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when the lock is acquired.</p>
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<p>When the guard falls out of scope it will release the lock.</p>
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</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#502-522">source</a><a href="#impl-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'rwlock, T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, R: <a class="trait" href="../relax/trait.RelaxStrategy.html" title="trait spin::relax::RelaxStrategy">RelaxStrategy</a>> <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'rwlock, T, R></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.upgrade" class="method"><a class="src rightside" href="../../src/spin/rwlock.rs.html#512-521">source</a><h4 class="code-header">pub fn <a href="#method.upgrade" class="fn">upgrade</a>(self) -> <a class="struct" href="struct.RwLockWriteGuard.html" title="struct spin::rwlock::RwLockWriteGuard">RwLockWriteGuard</a><'rwlock, T, R></h4></section></summary><div class="docblock"><p>Upgrades an upgradeable lock guard to a writable lock guard.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>mylock = spin::RwLock::new(<span class="number">0</span>);
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<span class="kw">let </span>upgradeable = mylock.upgradeable_read(); <span class="comment">// Readable, but not yet writable
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</span><span class="kw">let </span>writable = upgradeable.upgrade();</code></pre></div>
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</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E-1" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#524-615">source</a><a href="#impl-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E-1" class="anchor">§</a><h3 class="code-header">impl<'rwlock, T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, R> <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'rwlock, T, R></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.try_upgrade" class="method"><a class="src rightside" href="../../src/spin/rwlock.rs.html#565-567">source</a><h4 class="code-header">pub fn <a href="#method.try_upgrade" class="fn">try_upgrade</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.83.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="struct.RwLockWriteGuard.html" title="struct spin::rwlock::RwLockWriteGuard">RwLockWriteGuard</a><'rwlock, T, R>, Self></h4></section></summary><div class="docblock"><p>Tries to upgrade an upgradeable lock guard to a writable lock guard.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>mylock = spin::RwLock::new(<span class="number">0</span>);
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<span class="kw">let </span>upgradeable = mylock.upgradeable_read(); <span class="comment">// Readable, but not yet writable
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</span><span class="kw">match </span>upgradeable.try_upgrade() {
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<span class="prelude-val">Ok</span>(writable) => <span class="comment">/* upgrade successful - use writable lock guard */ </span>(),
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<span class="prelude-val">Err</span>(upgradeable) => <span class="comment">/* upgrade unsuccessful */ </span>(),
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};</code></pre></div>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.downgrade" class="method"><a class="src rightside" href="../../src/spin/rwlock.rs.html#583-596">source</a><h4 class="code-header">pub fn <a href="#method.downgrade" class="fn">downgrade</a>(self) -> <a class="struct" href="struct.RwLockReadGuard.html" title="struct spin::rwlock::RwLockReadGuard">RwLockReadGuard</a><'rwlock, T></h4></section></summary><div class="docblock"><p>Downgrades the upgradeable lock guard to a readable, shared lock guard. Cannot fail and is guaranteed not to spin.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>mylock = spin::RwLock::new(<span class="number">1</span>);
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<span class="kw">let </span>upgradeable = mylock.upgradeable_read();
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<span class="macro">assert!</span>(mylock.try_read().is_none());
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<span class="macro">assert_eq!</span>(<span class="kw-2">*</span>upgradeable, <span class="number">1</span>);
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<span class="kw">let </span>readable = upgradeable.downgrade(); <span class="comment">// This is guaranteed not to spin
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</span><span class="macro">assert!</span>(mylock.try_read().is_some());
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<span class="macro">assert_eq!</span>(<span class="kw-2">*</span>readable, <span class="number">1</span>);</code></pre></div>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.leak" class="method"><a class="src rightside" href="../../src/spin/rwlock.rs.html#610-614">source</a><h4 class="code-header">pub fn <a href="#method.leak" class="fn">leak</a>(this: Self) -> <a class="primitive" href="https://doc.rust-lang.org/1.83.0/core/primitive.reference.html">&'rwlock T</a></h4></section></summary><div class="docblock"><p>Leak the lock guard, yielding a reference to the underlying data.</p>
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<p>Note that this function will permanently lock the original lock.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>mylock = spin::RwLock::new(<span class="number">0</span>);
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<span class="kw">let </span>data: <span class="kw-2">&</span>i32 = spin::RwLockUpgradableGuard::leak(mylock.upgradeable_read());
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<span class="macro">assert_eq!</span>(<span class="kw-2">*</span>data, <span class="number">0</span>);</code></pre></div>
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</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#617-621">source</a><a href="#impl-Debug-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'rwlock, T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'rwlock, T, R></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#618-620">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.83.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.83.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Deref-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#732-739">source</a><a href="#impl-Deref-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'rwlock, T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'rwlock, T, R></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Target" class="associatedtype trait-impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#733">source</a><a href="#associatedtype.Target" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.83.0/core/ops/deref/trait.Deref.html#associatedtype.Target" class="associatedtype">Target</a> = T</h4></section></summary><div class='docblock'>The resulting type after dereferencing.</div></details><details class="toggle method-toggle" open><summary><section id="method.deref" class="method trait-impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#735-738">source</a><a href="#method.deref" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/ops/deref/trait.Deref.html#tymethod.deref" class="fn">deref</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.83.0/core/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Dereferences the value.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Display-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#623-627">source</a><a href="#impl-Display-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'rwlock, T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'rwlock, T, R></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt-1" class="method trait-impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#624-626">source</a><a href="#method.fmt-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Display.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.83.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.83.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.83.0/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Drop-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#764-772">source</a><a href="#impl-Drop-for-RwLockUpgradableGuard%3C'rwlock,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'rwlock, T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/ops/drop/trait.Drop.html" title="trait core::ops::drop::Drop">Drop</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'rwlock, T, R></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.drop" class="method trait-impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#765-771">source</a><a href="#method.drop" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/ops/drop/trait.Drop.html#tymethod.drop" class="fn">drop</a>(&mut self)</h4></section></summary><div class='docblock'>Executes the destructor for this type. <a href="https://doc.rust-lang.org/1.83.0/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></div></details></div></details><section id="impl-Send-for-RwLockUpgradableGuard%3C'_,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#120">source</a><a href="#impl-Send-for-RwLockUpgradableGuard%3C'_,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'_, T, R></h3></section><section id="impl-Sync-for-RwLockUpgradableGuard%3C'_,+T,+R%3E" class="impl"><a class="src rightside" href="../../src/spin/rwlock.rs.html#121">source</a><a href="#impl-Sync-for-RwLockUpgradableGuard%3C'_,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'_, T, R></h3></section></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-Freeze-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="impl"><a href="#impl-Freeze-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'a, T, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'a, T, R><div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section><section id="impl-RefUnwindSafe-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="impl"><a href="#impl-RefUnwindSafe-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'a, T, R = <a class="struct" href="../relax/struct.Spin.html" title="struct spin::relax::Spin">Spin</a>> !<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'a, T, R></h3></section><section id="impl-Unpin-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="impl"><a href="#impl-Unpin-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'a, T, R> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'a, T, R><div class="where">where
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R: <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section><section id="impl-UnwindSafe-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="impl"><a href="#impl-UnwindSafe-for-RwLockUpgradableGuard%3C'a,+T,+R%3E" class="anchor">§</a><h3 class="code-header">impl<'a, T, R = <a class="struct" href="../relax/struct.Spin.html" title="struct spin::relax::Spin">Spin</a>> !<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.RwLockUpgradableGuard.html" title="struct spin::rwlock::RwLockUpgradableGuard">RwLockUpgradableGuard</a><'a, T, R></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/any.rs.html#138">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/any.rs.html#139">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.83.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.83.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/borrow.rs.html#209">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/borrow.rs.html#211">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.83.0/core/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.83.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/borrow.rs.html#217">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.83.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/borrow.rs.html#218">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.83.0/core/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.83.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#765">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#768">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#748-750">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#758">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#805-807">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#809">source</a><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.83.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#812">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.83.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#790-792">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#794">source</a><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.83.0/src/core/convert/mod.rs.html#797">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.83.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.83.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html> |