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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="Memory safe access to shared resources"><title>Mutex in rtic_core - 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="rtic_core" 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="icon" href="https://raw.githubusercontent.com/rtic-rs/cortex-m-rtic/master/book/en/src/RTIC.svg"></head><body class="rustdoc trait"><!--[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><a class="logo-container" href="../rtic_core/index.html"><img src="https://raw.githubusercontent.com/rtic-rs/cortex-m-rtic/master/book/en/src/RTIC.svg" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../rtic_core/index.html"><img src="https://raw.githubusercontent.com/rtic-rs/cortex-m-rtic/master/book/en/src/RTIC.svg" alt="logo"></a><h2><a href="../rtic_core/index.html">rtic_<wbr>core</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Mutex</a></h2><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.T" title="T">T</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.lock" title="lock">lock</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-Mutex-for-%26mut+M" title="&'a mut M">&'a mut M</a></li></ul><h3><a href="#object-safety">Object Safety</a></h3><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="index.html">In crate rtic_<wbr>core</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">rtic_core</a></span><h1>Trait <span class="trait">Mutex</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/rtic_core/lib.rs.html#31-37">source</a> </span></div><pre class="rust item-decl"><code>pub trait Mutex {
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type <a href="#associatedtype.T" class="associatedtype">T</a>;
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// Required method
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fn <a href="#tymethod.lock" class="fn">lock</a><R>(&mut self, f: impl <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut Self::<a class="associatedtype" href="trait.Mutex.html#associatedtype.T" title="type rtic_core::Mutex::T">T</a>) -> R) -> R;
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Memory safe access to shared resources</p>
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<p>In RTIC, locks are implemented as critical sections that prevent other tasks from <em>starting</em>.
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These critical sections are implemented by temporarily increasing the dynamic priority of the
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current context. Entering and leaving these critical sections is always done in bounded constant
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time (a few instructions in bare metal contexts).</p>
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</div></details><h2 id="required-associated-types" class="section-header">Required Associated Types<a href="#required-associated-types" class="anchor">§</a></h2><div class="methods"><details class="toggle" open><summary><section id="associatedtype.T" class="method"><a class="src rightside" href="../src/rtic_core/lib.rs.html#33">source</a><h4 class="code-header">type <a href="#associatedtype.T" class="associatedtype">T</a></h4></section></summary><div class="docblock"><p>Data protected by the mutex</p>
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</div></details></div><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.lock" class="method"><a class="src rightside" href="../src/rtic_core/lib.rs.html#36">source</a><h4 class="code-header">fn <a href="#tymethod.lock" class="fn">lock</a><R>(&mut self, f: impl <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut Self::<a class="associatedtype" href="trait.Mutex.html#associatedtype.T" title="type rtic_core::Mutex::T">T</a>) -> R) -> R</h4></section></summary><div class="docblock"><p>Creates a critical section and grants temporary access to the protected data</p>
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</div></details></div><h2 id="object-safety" class="section-header">Object Safety<a href="#object-safety" class="anchor">§</a></h2><div class="object-safety-info">This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.83.0/reference/items/traits.html#object-safety">object safe</a>.</div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-Mutex-for-%26mut+M" class="impl"><a class="src rightside" href="../src/rtic_core/lib.rs.html#39-48">source</a><a href="#impl-Mutex-for-%26mut+M" class="anchor">§</a><h3 class="code-header">impl<'a, M> <a class="trait" href="trait.Mutex.html" title="trait rtic_core::Mutex">Mutex</a> for <a class="primitive" href="https://doc.rust-lang.org/1.83.0/core/primitive.reference.html">&'a mut M</a><div class="where">where
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M: <a class="trait" href="trait.Mutex.html" title="trait rtic_core::Mutex">Mutex</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.T-1" class="associatedtype trait-impl"><a class="src rightside" href="../src/rtic_core/lib.rs.html#43">source</a><a href="#associatedtype.T-1" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.T" class="associatedtype">T</a> = <M as <a class="trait" href="trait.Mutex.html" title="trait rtic_core::Mutex">Mutex</a>>::<a class="associatedtype" href="trait.Mutex.html#associatedtype.T" title="type rtic_core::Mutex::T">T</a></h4></section><section id="method.lock" class="method trait-impl"><a class="src rightside" href="../src/rtic_core/lib.rs.html#45-47">source</a><a href="#method.lock" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.lock" class="fn">lock</a><R>(&mut self, f: impl <a class="trait" href="https://doc.rust-lang.org/1.83.0/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&mut M::<a class="associatedtype" href="trait.Mutex.html#associatedtype.T" title="type rtic_core::Mutex::T">T</a>) -> R) -> R</h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><details class="toggle implementors-toggle"><summary><section id="impl-Mutex-for-Exclusive%3C'a,+T%3E" class="impl"><a class="src rightside" href="../src/rtic_core/lib.rs.html#55-61">source</a><a href="#impl-Mutex-for-Exclusive%3C'a,+T%3E" class="anchor">§</a><h3 class="code-header">impl<'a, T> <a class="trait" href="trait.Mutex.html" title="trait rtic_core::Mutex">Mutex</a> for <a class="struct" href="struct.Exclusive.html" title="struct rtic_core::Exclusive">Exclusive</a><'a, T></h3></section></summary><div class="impl-items"><section id="associatedtype.T-2" class="associatedtype trait-impl"><a class="src rightside" href="../src/rtic_core/lib.rs.html#56">source</a><a href="#associatedtype.T-2" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.T" class="associatedtype">T</a> = T</h4></section></div></details></div><script src="../trait.impl/rtic_core/trait.Mutex.js" async></script></section></div></main></body></html>
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