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<p class='location'>Struct CachedThreadLocal</p><div class="block items"><ul><li><a href="#methods">Methods</a></li><li><a href="#implementations">Trait Implementations</a></li></ul></div><p class='location'><a href='index.html'>thread_local</a></p><script>window.sidebarCurrent = {name: 'CachedThreadLocal', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>thread_local</a>::<wbr><a class="struct" href=''>CachedThreadLocal</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class='rust struct'>pub struct CachedThreadLocal&lt;T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt; { /* fields omitted */ }</pre><div class='docblock'><p>Wrapper around <code>ThreadLocal</code> which adds a fast path for a single thread.</p>
<p>This has the same API as <code>ThreadLocal</code>, but will register the first thread
that sets a value as its owner. All accesses by the owner will go through
a special fast path which is much faster than the normal <code>ThreadLocal</code> path.</p>
</div><h2 id='methods'>Methods</h2><h3 class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt; <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#498-579' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>fn <a href='#method.new' class='fnname'>new</a>() -&gt; <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><p>Creates a new empty <code>CachedThreadLocal</code>.</p>
</div><h4 id='method.get' class="method"><span id='get.v' class='invisible'><code>fn <a href='#method.get' class='fnname'>get</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;T&gt;</code></span></h4>
<div class='docblock'><p>Returns the element for the current thread, if it exists.</p>
</div><h4 id='method.get_or' class="method"><span id='get_or.v' class='invisible'><code>fn <a href='#method.get_or' class='fnname'>get_or</a>&lt;F&gt;(&amp;self, create: F) -&gt; &amp;T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;,&nbsp;</span></code></span></h4>
<div class='docblock'><p>Returns the element for the current thread, or creates it if it doesn&#39;t
exist.</p>
</div><h4 id='method.get_or_try' class="method"><span id='get_or_try.v' class='invisible'><code>fn <a href='#method.get_or_try' class='fnname'>get_or_try</a>&lt;F, E&gt;(&amp;self, create: F) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;&amp;T, E&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>() -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;, E&gt;,&nbsp;</span></code></span></h4>
<div class='docblock'><p>Returns the element for the current thread, or creates it if it doesn&#39;t
exist. If <code>create</code> fails, that error is returned and no element is
added.</p>
</div><h4 id='method.iter_mut' class="method"><span id='iter_mut.v' class='invisible'><code>fn <a href='#method.iter_mut' class='fnname'>iter_mut</a>(&amp;mut self) -&gt; <a class="type" href="../thread_local/type.CachedIterMut.html" title="type thread_local::CachedIterMut">CachedIterMut</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><p>Returns a mutable iterator over the local values of all threads.</p>
<p>Since this call borrows the <code>ThreadLocal</code> mutably, this operation can
be done safely---the mutable borrow statically guarantees no other
threads are currently accessing their associated values.</p>
</div><h4 id='method.clear' class="method"><span id='clear.v' class='invisible'><code>fn <a href='#method.clear' class='fnname'>clear</a>(&amp;mut self)</code></span></h4>
<div class='docblock'><p>Removes all thread-specific values from the <code>ThreadLocal</code>, effectively
reseting it to its original state.</p>
<p>Since this call borrows the <code>ThreadLocal</code> mutably, this operation can
be done safely---the mutable borrow statically guarantees no other
threads are currently accessing their associated values.</p>
</div></div><h3 class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>&gt; <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#599-605' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.get_default' class="method"><span id='get_default.v' class='invisible'><code>fn <a href='#method.get_default' class='fnname'>get_default</a>(&amp;self) -&gt; &amp;T</code></span></h4>
<div class='docblock'><p>Returns the element for the current thread, or creates a default one if
it doesn&#39;t exist.</p>
</div></div><h2 id='implementations'>Trait Implementations</h2><h3 class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#490' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt; <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="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#492-496' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.default' class="method"><span id='default.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default' class='fnname'>default</a>() -&gt; <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><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 class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a> for <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#581-588' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Item' class="type"><span id='Item.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter' class="type"><span id='IntoIter.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="type" href="../thread_local/type.CachedIntoIter.html" title="type thread_local::CachedIntoIter">CachedIntoIter</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter' class="method"><span id='into_iter.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -&gt; <a class="type" href="../thread_local/type.CachedIntoIter.html" title="type thread_local::CachedIntoIter">CachedIntoIter</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl&lt;'a, T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a> for &amp;'a mut <a class="struct" href="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#590-597' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Item-1' class="type"><span id='Item.t-1' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = &amp;'a mut <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;</code></span></h4>
<div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter-1' class="type"><span id='IntoIter.t-1' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="type" href="../thread_local/type.CachedIterMut.html" title="type thread_local::CachedIterMut">CachedIterMut</a>&lt;'a, T&gt;</code></span></h4>
<div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter-1' class="method"><span id='into_iter.v-1' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -&gt; <a class="type" href="../thread_local/type.CachedIterMut.html" title="type thread_local::CachedIterMut">CachedIterMut</a>&lt;'a, T&gt;</code></span></h4>
<div class='docblock'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>&gt; <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="../thread_local/struct.CachedThreadLocal.html" title="struct thread_local::CachedThreadLocal">CachedThreadLocal</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/thread_local/lib.rs.html#607-611' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>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></span></h4>
<div class='docblock'><p>Formats the value using the given formatter.</p>
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