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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 `ThreadPool` struct in crate `threadpool`."><meta name="keywords" content="rust, rustlang, rust-lang, ThreadPool"><title>threadpool::ThreadPool - 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 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><a href='../threadpool/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><p class='location'>Struct ThreadPool</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.active_count">active_count</a><a href="#method.execute">execute</a><a href="#method.join">join</a><a href="#method.max_count">max_count</a><a href="#method.new">new</a><a href="#method.new_with_name">new_with_name</a><a href="#method.panic_count">panic_count</a><a href="#method.queued_count">queued_count</a><a href="#method.set_num_threads">set_num_threads</a><a href="#method.set_threads">set_threads</a><a href="#method.with_name">with_name</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Default">Default</a><a href="#impl-Eq">Eq</a><a href="#impl-PartialEq%3CThreadPool%3E">PartialEq&lt;ThreadPool&gt;</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">!UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow&lt;T&gt;</a><a href="#impl-BorrowMut%3CT%3E">BorrowMut&lt;T&gt;</a><a href="#impl-From%3CT%3E">From&lt;T&gt;</a><a href="#impl-Into%3CU%3E">Into&lt;U&gt;</a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-TryFrom%3CU%3E">TryFrom&lt;U&gt;</a><a href="#impl-TryInto%3CU%3E">TryInto&lt;U&gt;</a></div></div><p class='location'><a href='index.html'>threadpool</a></p><script>window.sidebarCurrent = {name: 'ThreadPool', 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"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled 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'>&#x2212;</span>]</a></span><a class='srclink' href='../src/threadpool/lib.rs.html#341-348' title='goto source code'>[src]</a></span><span class='in-band'>Struct <a href='index.html'>threadpool</a>::<wbr><a class="struct" href=''>ThreadPool</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust struct'>pub struct ThreadPool { /* fields omitted */ }</pre></div><div class='docblock'><p>Abstraction of a thread pool for basic parallelism.</p>
</div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><code class='in-band'>impl <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl' class='anchor'></a><a class='srclink' href='../src/threadpool/lib.rs.html#350-631' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.new' class="method"><code id='new.v'>pub fn <a href='#method.new' class='fnname'>new</a>(num_threads: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#366-368' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates a new thread pool capable of executing <code>num_threads</code> number of jobs concurrently.</p>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p>This function will panic if <code>num_threads</code> is 0.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<p>Create a new thread pool capable of executing four jobs concurrently:</p>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">4</span>);</pre></div>
</div><h4 id='method.with_name' class="method"><code id='with_name.v'>pub fn <a href='#method.with_name' class='fnname'>with_name</a>(name: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, num_threads: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#396-401' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates a new thread pool capable of executing <code>num_threads</code> number of jobs concurrently.
Each thread will have the <a href="https://doc.rust-lang.org/std/thread/struct.Thread.html#method.name">name</a> <code>name</code>.</p>
<h1 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h1>
<p>This function will panic if <code>num_threads</code> is 0.</p>
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">thread</span>;
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">with_name</span>(<span class="string">&quot;worker&quot;</span>.<span class="ident">into</span>(), <span class="number">2</span>);
<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">2</span> {
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="op">|</span><span class="op">|</span> {
<span class="macro">assert_eq</span><span class="macro">!</span>(
<span class="ident">thread</span>::<span class="ident">current</span>().<span class="ident">name</span>(),
<span class="prelude-val">Some</span>(<span class="string">&quot;worker&quot;</span>)
);
});
}
<span class="ident">pool</span>.<span class="ident">join</span>();</pre></div>
</div><h4 id='method.new_with_name' class="method"><code id='new_with_name.v'>pub fn <a href='#method.new_with_name' class='fnname'>new_with_name</a>(name: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, num_threads: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#406-408' title='goto source code'>[src]</a></h4><div class='stability'><div class='stab deprecated'>Deprecated since 1.4.0: <p>use ThreadPool::with_name</p>
</div></div><div class='docblock'><p><strong>Deprecated: Use <a href="#method.with_name"><code>ThreadPool::with_name</code></a></strong></p>
</div><h4 id='method.execute' class="method"><code id='execute.v'>pub fn <a href='#method.execute' class='fnname'>execute</a>&lt;F&gt;(&amp;self, job: F) <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>() + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'static,&nbsp;</span></code><a class='srclink' href='../src/threadpool/lib.rs.html#426-434' title='goto source code'>[src]</a></h4><div class='docblock'><p>Executes the function <code>job</code> on a thread in the pool.</p>
<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
<p>Execute four jobs on a thread pool that can run two jobs concurrently:</p>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">2</span>);
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="op">|</span><span class="op">|</span> <span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;hello&quot;</span>));
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="op">|</span><span class="op">|</span> <span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;world&quot;</span>));
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="op">|</span><span class="op">|</span> <span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;foo&quot;</span>));
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="op">|</span><span class="op">|</span> <span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;bar&quot;</span>));
<span class="ident">pool</span>.<span class="ident">join</span>();</pre></div>
</div><h4 id='method.queued_count' class="method"><code id='queued_count.v'>pub fn <a href='#method.queued_count' class='fnname'>queued_count</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#455-457' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of jobs waiting to executed in the pool.</p>
<h1 id="examples-3" class="section-header"><a href="#examples-3">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">thread</span>::<span class="ident">sleep</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">2</span>);
<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">10</span> {
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="op">|</span><span class="op">|</span> {
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">100</span>));
});
}
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">1</span>)); <span class="comment">// wait for threads to start</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">8</span>, <span class="ident">pool</span>.<span class="ident">queued_count</span>());</pre></div>
</div><h4 id='method.active_count' class="method"><code id='active_count.v'>pub fn <a href='#method.active_count' class='fnname'>active_count</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#478-480' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of currently active threads.</p>
<h1 id="examples-4" class="section-header"><a href="#examples-4">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">thread</span>::<span class="ident">sleep</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">4</span>);
<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">10</span> {
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="kw">move</span> <span class="op">|</span><span class="op">|</span> {
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">100</span>));
});
}
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">1</span>)); <span class="comment">// wait for threads to start</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">4</span>, <span class="ident">pool</span>.<span class="ident">active_count</span>());</pre></div>
</div><h4 id='method.max_count' class="method"><code id='max_count.v'>pub fn <a href='#method.max_count' class='fnname'>max_count</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#495-497' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the maximum number of threads the pool will execute concurrently.</p>
<h1 id="examples-5" class="section-header"><a href="#examples-5">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">4</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">4</span>, <span class="ident">pool</span>.<span class="ident">max_count</span>());
<span class="ident">pool</span>.<span class="ident">set_num_threads</span>(<span class="number">8</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">8</span>, <span class="ident">pool</span>.<span class="ident">max_count</span>());</pre></div>
</div><h4 id='method.panic_count' class="method"><code id='panic_count.v'>pub fn <a href='#method.panic_count' class='fnname'>panic_count</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#519-521' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of panicked threads over the lifetime of the pool.</p>
<h1 id="examples-6" class="section-header"><a href="#examples-6">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">4</span>);
<span class="kw">for</span> <span class="ident">n</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">10</span> {
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="kw">move</span> <span class="op">|</span><span class="op">|</span> {
<span class="comment">// simulate a panic</span>
<span class="kw">if</span> <span class="ident">n</span> <span class="op">%</span> <span class="number">2</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span> {
<span class="macro">panic</span><span class="macro">!</span>()
}
});
}
<span class="ident">pool</span>.<span class="ident">join</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">5</span>, <span class="ident">pool</span>.<span class="ident">panic_count</span>());</pre></div>
</div><h4 id='method.set_threads' class="method"><code id='set_threads.v'>pub fn <a href='#method.set_threads' class='fnname'>set_threads</a>(&amp;mut self, num_threads: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><a class='srclink' href='../src/threadpool/lib.rs.html#525-527' title='goto source code'>[src]</a></h4><div class='stability'><div class='stab deprecated'>Deprecated since 1.3.0: <p>use ThreadPool::set_num_threads</p>
</div></div><div class='docblock'><p><strong>Deprecated: Use <a href="#method.set_num_threads"><code>ThreadPool::set_num_threads</code></a></strong></p>
</div><h4 id='method.set_num_threads' class="method"><code id='set_num_threads.v'>pub fn <a href='#method.set_num_threads' class='fnname'>set_num_threads</a>(&amp;mut self, num_threads: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><a class='srclink' href='../src/threadpool/lib.rs.html#569-581' title='goto source code'>[src]</a></h4><div class='docblock'><p>Sets the number of worker-threads to use as <code>num_threads</code>.
Can be used to change the threadpool size during runtime.
Will not abort already running or waiting threads.</p>
<h1 id="panics-2" class="section-header"><a href="#panics-2">Panics</a></h1>
<p>This function will panic if <code>num_threads</code> is 0.</p>
<h1 id="examples-7" class="section-header"><a href="#examples-7">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">thread</span>::<span class="ident">sleep</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">4</span>);
<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">10</span> {
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="kw">move</span> <span class="op">|</span><span class="op">|</span> {
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">100</span>));
});
}
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">1</span>)); <span class="comment">// wait for threads to start</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">4</span>, <span class="ident">pool</span>.<span class="ident">active_count</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">6</span>, <span class="ident">pool</span>.<span class="ident">queued_count</span>());
<span class="comment">// Increase thread capacity of the pool</span>
<span class="ident">pool</span>.<span class="ident">set_num_threads</span>(<span class="number">8</span>);
<span class="ident">sleep</span>(<span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">1</span>)); <span class="comment">// wait for new threads to start</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">8</span>, <span class="ident">pool</span>.<span class="ident">active_count</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">pool</span>.<span class="ident">queued_count</span>());
<span class="comment">// Decrease thread capacity of the pool</span>
<span class="comment">// No active threads are killed</span>
<span class="ident">pool</span>.<span class="ident">set_num_threads</span>(<span class="number">4</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">8</span>, <span class="ident">pool</span>.<span class="ident">active_count</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">pool</span>.<span class="ident">queued_count</span>());</pre></div>
</div><h4 id='method.join' class="method"><code id='join.v'>pub fn <a href='#method.join' class='fnname'>join</a>(&amp;self)</code><a class='srclink' href='../src/threadpool/lib.rs.html#614-630' title='goto source code'>[src]</a></h4><div class='docblock'><p>Block the current thread until all jobs in the pool have been executed.</p>
<p>Calling <code>join</code> on an empty pool will cause an immediate return.
<code>join</code> may be called from multiple threads concurrently.
A <code>join</code> is an atomic point in time. All threads joining before the join
event will exit together even if the pool is processing new jobs by the
time they get scheduled.</p>
<p>Calling <code>join</code> from a thread within the pool will cause a deadlock. This
behavior is considered safe.</p>
<h1 id="examples-8" class="section-header"><a href="#examples-8">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">Arc</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">atomic</span>::{<span class="ident">AtomicUsize</span>, <span class="ident">Ordering</span>};
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">8</span>);
<span class="kw">let</span> <span class="ident">test_count</span> <span class="op">=</span> <span class="ident">Arc</span>::<span class="ident">new</span>(<span class="ident">AtomicUsize</span>::<span class="ident">new</span>(<span class="number">0</span>));
<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">42</span> {
<span class="kw">let</span> <span class="ident">test_count</span> <span class="op">=</span> <span class="ident">test_count</span>.<span class="ident">clone</span>();
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="kw">move</span> <span class="op">|</span><span class="op">|</span> {
<span class="ident">test_count</span>.<span class="ident">fetch_add</span>(<span class="number">1</span>, <span class="ident">Ordering</span>::<span class="ident">Relaxed</span>);
});
}
<span class="ident">pool</span>.<span class="ident">join</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">42</span>, <span class="ident">test_count</span>.<span class="ident">load</span>(<span class="ident">Ordering</span>::<span class="ident">Relaxed</span>));</pre></div>
</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-Clone' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Clone' class='anchor'></a><a class='srclink' href='../src/threadpool/lib.rs.html#633-676' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.clone' class="method"><code id='clone.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&amp;self) -&gt; <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#670-675' title='goto source code'>[src]</a></h4><div class='docblock'><p>Cloning a pool will create a new handle to the pool.
The behavior is similar to <a href="https://doc.rust-lang.org/stable/std/sync/struct.Arc.html">Arc</a>.</p>
<p>We could for example submit jobs from multiple threads concurrently.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">thread</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">sync</span>::<span class="ident">mpsc</span>::<span class="ident">channel</span>;
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">with_name</span>(<span class="string">&quot;clone example&quot;</span>.<span class="ident">into</span>(), <span class="number">2</span>);
<span class="kw">let</span> <span class="ident">results</span> <span class="op">=</span> (<span class="number">0</span>..<span class="number">2</span>)
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">i</span><span class="op">|</span> {
<span class="kw">let</span> <span class="ident">pool</span> <span class="op">=</span> <span class="ident">pool</span>.<span class="ident">clone</span>();
<span class="ident">thread</span>::<span class="ident">spawn</span>(<span class="kw">move</span> <span class="op">|</span><span class="op">|</span> {
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">channel</span>();
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">1</span>..<span class="number">12</span> {
<span class="kw">let</span> <span class="ident">tx</span> <span class="op">=</span> <span class="ident">tx</span>.<span class="ident">clone</span>();
<span class="ident">pool</span>.<span class="ident">execute</span>(<span class="kw">move</span> <span class="op">|</span><span class="op">|</span> {
<span class="ident">tx</span>.<span class="ident">send</span>(<span class="ident">i</span>).<span class="ident">expect</span>(<span class="string">&quot;channel will be waiting&quot;</span>);
});
}
<span class="ident">drop</span>(<span class="ident">tx</span>);
<span class="kw">if</span> <span class="ident">i</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span> {
<span class="ident">rx</span>.<span class="ident">iter</span>().<span class="ident">fold</span>(<span class="number">0</span>, <span class="op">|</span><span class="ident">accumulator</span>, <span class="ident">element</span><span class="op">|</span> <span class="ident">accumulator</span> <span class="op">+</span> <span class="ident">element</span>)
} <span class="kw">else</span> {
<span class="ident">rx</span>.<span class="ident">iter</span>().<span class="ident">fold</span>(<span class="number">1</span>, <span class="op">|</span><span class="ident">accumulator</span>, <span class="ident">element</span><span class="op">|</span> <span class="ident">accumulator</span> <span class="op">*</span> <span class="ident">element</span>)
}
})
})
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">join_handle</span><span class="op">|</span> <span class="ident">join_handle</span>.<span class="ident">join</span>().<span class="ident">expect</span>(<span class="string">&quot;collect results from threads&quot;</span>))
.<span class="ident">collect</span>::<span class="op">&lt;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">usize</span><span class="op">&gt;</span><span class="op">&gt;</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="macro">vec</span><span class="macro">!</span>[<span class="number">66</span>, <span class="number">39916800</span>], <span class="ident">results</span>);</pre></div>
</div><h4 id='method.clone_from' class="method hidden"><code id='clone_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&amp;mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Self)</code><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#131-133' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3 id='impl-Debug' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../src/threadpool/lib.rs.html#689-698' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.fmt' class="method hidden"><code id='fmt.v'>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#690-697' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id='impl-Default' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Default' class='anchor'></a><a class='srclink' href='../src/threadpool/lib.rs.html#682-686' title='goto source code'>[src]</a></h3><div class='docblock'><p>Create a thread pool with one thread per CPU.
On machines with hyperthreading,
this will create one thread per hyperthread.</p>
</div><div class='impl-items'><h4 id='method.default' class="method hidden"><code id='default.v'>fn <a href='https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default' class='fnname'>default</a>() -&gt; Self</code><a class='srclink' href='../src/threadpool/lib.rs.html#683-685' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Returns the &quot;default value&quot; for a type. <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default">Read more</a></p>
</div></div><h3 id='impl-Eq' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Eq' class='anchor'></a><a class='srclink' href='../src/threadpool/lib.rs.html#724' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-PartialEq%3CThreadPool%3E' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;<a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a>&gt; for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-PartialEq%3CThreadPool%3E' class='anchor'></a><a class='srclink' href='../src/threadpool/lib.rs.html#700-723' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.eq' class="method"><code id='eq.v'>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&amp;self, other: &amp;<a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../src/threadpool/lib.rs.html#716-722' title='goto source code'>[src]</a></h4><div class='docblock'><p>Check if you are working with the same pool</p>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">threadpool</span>::<span class="ident">ThreadPool</span>;
<span class="kw">let</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">2</span>);
<span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="ident">ThreadPool</span>::<span class="ident">new</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">a</span>, <span class="ident">a</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">b</span>, <span class="ident">b</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">a</span> <span class="op">!</span><span class="op">=</span> <span class="ident">b</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">b</span> <span class="op">!</span><span class="op">=</span> <span class="ident">a</span>);</pre></div>
</div><h4 id='method.ne' class="method hidden"><code id='ne.v'><span class="docblock attributes">#[must_use]
</span>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&amp;self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Rhs) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#215-217' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>!=</code>.</p>
</div></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-RefUnwindSafe' class='impl'><code class='in-band'>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-RefUnwindSafe' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Send' class='impl'><code class='in-band'>impl <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="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Send' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl !<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="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Sync' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Unpin' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-Unpin' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-UnwindSafe' class='impl'><code class='in-band'>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../threadpool/struct.ThreadPool.html" title="struct threadpool::ThreadPool">ThreadPool</a></code><a href='#impl-UnwindSafe' class='anchor'></a></h3><div class='impl-items'></div></div><h2 id='blanket-implementations' class='small-section-header'>Blanket Implementations<a href='#blanket-implementations' class='anchor'></a></h2><div id='blanket-implementations-list'><h3 id='impl-Any' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#108-112' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.type_id' class="method hidden"><code id='type_id.v'>fn <a href='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#109-111' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
</div></div><h3 id='impl-Borrow%3CT%3E' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href='#impl-Borrow%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-217' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow' class="method hidden"><code id='borrow.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-216' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3 id='impl-BorrowMut%3CT%3E' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href='#impl-BorrowMut%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220-224' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow_mut' class="method hidden"><code id='borrow_mut.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221-223' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3 id='impl-From%3CT%3E' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</code><a href='#impl-From%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#564-568' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -&gt; T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#565-567' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3 id='impl-Into%3CU%3E' class='impl'><code class='in-band'>impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,&nbsp;</span></code><a href='#impl-Into%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#553-560' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.into' class="method hidden"><code id='into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -&gt; U</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#557-559' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3 id='impl-ToOwned' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,&nbsp;</span></code><a href='#impl-ToOwned' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#80-92' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Owned' class="type"><code id='Owned.t'>type <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned' class="type">Owned</a> = T</code></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
</div><h4 id='method.to_owned' class="method hidden"><code id='to_owned.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned' class='fnname'>to_owned</a>(&amp;self) -&gt; T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#85-87' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
</div><h4 id='method.clone_into' class="method hidden"><code id='clone_into.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into' class='fnname'>clone_into</a>(&amp;self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T)</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#89-91' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab unstable'><details><summary><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
</details></div></div><div class='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
</div></div><h3 id='impl-TryFrom%3CU%3E' class='impl'><code class='in-band'>impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,&nbsp;</span></code><a href='#impl-TryFrom%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#601-610' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error' class="type"><code id='Error.t'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4 id='method.try_from' class="method hidden"><code id='try_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#607-609' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3 id='impl-TryInto%3CU%3E' class='impl'><code class='in-band'>impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,&nbsp;</span></code><a href='#impl-TryInto%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587-596' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4 id='method.try_into' class="method hidden"><code id='try_into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(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;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#593-595' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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