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<p class='location'>Struct Join</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Future">Future</a><a href="#impl-Debug">Debug</a></div></div><p class='location'><a href='../../index.html'>tokio</a>::<wbr><a href='../index.html'>prelude</a>::<wbr><a href='index.html'>future</a></p><script>window.sidebarCurrent = {name: 'Join', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>tokio</a>::<wbr><a href='../index.html'>prelude</a>::<wbr><a href='index.html'>future</a>::<wbr><a class="struct" href=''>Join</a></span><span class='out-of-band'><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>&#x2212;</span>]
</a>
</span><a class='srclink' href='../../../src/futures/future/join.rs.html#15-21' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'><div class="docblock attributes">#[must_use = "futures do nothing unless polled"]
</div>pub struct Join&lt;A, B&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;A: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&lt;Error = &lt;A as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span> { /* fields omitted */ }</pre><div class='docblock'><p>Future for the <code>join</code> combinator, waiting for two futures to
complete.</p>
<p>This is created by the <code>Future::join</code> method.</p>
</div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<h3 id='impl-Future' class='impl'><span class='in-band'><code>impl&lt;A, B&gt; <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a> for <a class="struct" href="../../../tokio/prelude/future/struct.Join.html" title="struct tokio::prelude::future::Join">Join</a>&lt;A, B&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;A: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&lt;Error = &lt;A as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code><a href='#impl-Future' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/join.rs.html#59-90' 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='../../../tokio/prelude/future/trait.Future.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&lt;A as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>, &lt;B as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></h4>
<div class='docblock'><p>The type of value that this future will resolved with if it is successful. <a href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item">Read more</a></p>
</div><h4 id='associatedtype.Error' class="type"><span id='Error.t' class='invisible'><code>type <a href='../../../tokio/prelude/future/trait.Future.html#associatedtype.Error' class="type">Error</a> = &lt;A as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a></code></span></h4>
<div class='docblock'><p>The type of error that this future will resolve with if it fails in a normal fashion. <a href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error">Read more</a></p>
</div><h4 id='method.poll' class="method"><span id='poll.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#tymethod.poll' class='fnname'>poll</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self<br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="enum" href="../../../tokio/prelude/enum.Async.html" title="enum tokio::prelude::Async">Async</a>&lt;&lt;<a class="struct" href="../../../tokio/prelude/future/struct.Join.html" title="struct tokio::prelude::future::Join">Join</a>&lt;A, B&gt; as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>&gt;, &lt;<a class="struct" href="../../../tokio/prelude/future/struct.Join.html" title="struct tokio::prelude::future::Join">Join</a>&lt;A, B&gt; as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/join.rs.html#66-89' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Query this future to see if its value has become available, registering interest if it is not. <a href="../../../tokio/prelude/future/trait.Future.html#tymethod.poll">Read more</a></p>
</div><h4 id='method.wait' class="method"><span id='wait.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.wait' class='fnname'>wait</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;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>, Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#296-300' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Block the current thread until this future is resolved. <a href="../../../tokio/prelude/future/trait.Future.html#method.wait">Read more</a></p>
</div><h4 id='method.map' class="method"><span id='map.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.map' class='fnname'>map</a>&lt;F, U&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Map.html" title="struct tokio::prelude::future::Map">Map</a>&lt;Self, F&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>(Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>) -&gt; U,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#370-375' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Map this future's result to a different type, returning a new future of the resulting type. <a href="../../../tokio/prelude/future/trait.Future.html#method.map">Read more</a></p>
</div><h4 id='method.map_err' class="method"><span id='map_err.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.map_err' class='fnname'>map_err</a>&lt;F, E&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.MapErr.html" title="struct tokio::prelude::future::MapErr">MapErr</a>&lt;Self, F&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>(Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>) -&gt; E,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#410-415' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Map this future's error to a different error, returning a new future. <a href="../../../tokio/prelude/future/trait.Future.html#method.map_err">Read more</a></p>
</div><h4 id='method.from_err' class="method"><span id='from_err.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.from_err' class='fnname'>from_err</a>&lt;E&gt;(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.FromErr.html" title="struct tokio::prelude::future::FromErr">FromErr</a>&lt;Self, E&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;E: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#440-444' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Map this future's error to any error implementing <code>From</code> for this future's <code>Error</code>, returning a new future. <a href="../../../tokio/prelude/future/trait.Future.html#method.from_err">Read more</a></p>
</div><h4 id='method.then' class="method"><span id='then.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.then' class='fnname'>then</a>&lt;F, B&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Then.html" title="struct tokio::prelude::future::Then">Then</a>&lt;Self, B, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>,<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="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>, Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;) -&gt; B,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#484-490' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Chain on a computation for when a future finished, passing the result of the future to the provided closure <code>f</code>. <a href="../../../tokio/prelude/future/trait.Future.html#method.then">Read more</a></p>
</div><h4 id='method.and_then' class="method"><span id='and_then.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.and_then' class='fnname'>and_then</a>&lt;F, B&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.AndThen.html" title="struct tokio::prelude::future::AndThen">AndThen</a>&lt;Self, B, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<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>(Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>) -&gt; B,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#525-531' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Execute another future after this one has resolved successfully. <a href="../../../tokio/prelude/future/trait.Future.html#method.and_then">Read more</a></p>
</div><h4 id='method.or_else' class="method"><span id='or_else.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.or_else' class='fnname'>or_else</a>&lt;F, B&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.OrElse.html" title="struct tokio::prelude::future::OrElse">OrElse</a>&lt;Self, B, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>&gt;,<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>(Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>) -&gt; B,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#566-572' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Execute another future if this one resolves with an error. <a href="../../../tokio/prelude/future/trait.Future.html#method.or_else">Read more</a></p>
</div><h4 id='method.select' class="method"><span id='select.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.select' class='fnname'>select</a>&lt;B&gt;(self, other: B) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Select.html" title="struct tokio::prelude::future::Select">Select</a>&lt;Self, &lt;B as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>, Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#624-631' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Waits for either one of two futures to complete. <a href="../../../tokio/prelude/future/trait.Future.html#method.select">Read more</a></p>
</div><h4 id='method.select2' class="method"><span id='select2.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.select2' class='fnname'>select2</a>&lt;B&gt;(self, other: B) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Select2.html" title="struct tokio::prelude::future::Select2">Select2</a>&lt;Self, &lt;B as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#670-674' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Waits for either one of two differently-typed futures to complete. <a href="../../../tokio/prelude/future/trait.Future.html#method.select2">Read more</a></p>
</div><h4 id='method.join' class="method"><span id='join.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.join' class='fnname'>join</a>&lt;B&gt;(self, other: B) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Join.html" title="struct tokio::prelude::future::Join">Join</a>&lt;Self, &lt;B as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#715-721' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Joins the result of two futures, waiting for them both to complete. <a href="../../../tokio/prelude/future/trait.Future.html#method.join">Read more</a></p>
</div><h4 id='method.join3' class="method"><span id='join3.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.join3' class='fnname'>join3</a>&lt;B, C&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;self, <br>&nbsp;&nbsp;&nbsp;&nbsp;b: B, <br>&nbsp;&nbsp;&nbsp;&nbsp;c: C<br>) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Join3.html" title="struct tokio::prelude::future::Join3">Join3</a>&lt;Self, &lt;B as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>, &lt;C as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;C: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#724-730' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Same as <code>join</code>, but with more futures.</p>
</div><h4 id='method.join4' class="method"><span id='join4.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.join4' class='fnname'>join4</a>&lt;B, C, D&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;self, <br>&nbsp;&nbsp;&nbsp;&nbsp;b: B, <br>&nbsp;&nbsp;&nbsp;&nbsp;c: C, <br>&nbsp;&nbsp;&nbsp;&nbsp;d: D<br>) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Join4.html" title="struct tokio::prelude::future::Join4">Join4</a>&lt;Self, &lt;B as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>, &lt;C as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>, &lt;D as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;C: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;D: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#733-741' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Same as <code>join</code>, but with more futures.</p>
</div><h4 id='method.join5' class="method"><span id='join5.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.join5' class='fnname'>join5</a>&lt;B, C, D, E&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;self, <br>&nbsp;&nbsp;&nbsp;&nbsp;b: B, <br>&nbsp;&nbsp;&nbsp;&nbsp;c: C, <br>&nbsp;&nbsp;&nbsp;&nbsp;d: D, <br>&nbsp;&nbsp;&nbsp;&nbsp;e: E<br>) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Join5.html" title="struct tokio::prelude::future::Join5">Join5</a>&lt;Self, &lt;B as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>, &lt;C as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>, &lt;D as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>, &lt;E as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Future" title="type tokio::prelude::IntoFuture::Future">Future</a>&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;C: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;D: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;E: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#744-754' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Same as <code>join</code>, but with more futures.</p>
</div><h4 id='method.into_stream' class="method"><span id='into_stream.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.into_stream' class='fnname'>into_stream</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.IntoStream.html" title="struct tokio::prelude::future::IntoStream">IntoStream</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#777-781' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Convert this future into a single element stream. <a href="../../../tokio/prelude/future/trait.Future.html#method.into_stream">Read more</a></p>
</div><h4 id='method.flatten' class="method"><span id='flatten.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.flatten' class='fnname'>flatten</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Flatten.html" title="struct tokio::prelude::future::Flatten">Flatten</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a> as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Error" title="type tokio::prelude::IntoFuture::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#819-829' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Flatten the execution of this future when the successful result of this future is itself another future. <a href="../../../tokio/prelude/future/trait.Future.html#method.flatten">Read more</a></p>
</div><h4 id='method.flatten_stream' class="method"><span id='flatten_stream.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.flatten_stream' class='fnname'>flatten_stream</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.FlattenStream.html" title="struct tokio::prelude::future::FlattenStream">FlattenStream</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a> as <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&gt;::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a> == Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#859-864' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Flatten the execution of this future when the successful result of this future is a stream. <a href="../../../tokio/prelude/future/trait.Future.html#method.flatten_stream">Read more</a></p>
</div><h4 id='method.fuse' class="method"><span id='fuse.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.fuse' class='fnname'>fuse</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Fuse.html" title="struct tokio::prelude::future::Fuse">Fuse</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#899-904' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Fuse a future such that <code>poll</code> will never again be called once it has completed. <a href="../../../tokio/prelude/future/trait.Future.html#method.fuse">Read more</a></p>
</div><h4 id='method.inspect' class="method"><span id='inspect.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.inspect' class='fnname'>inspect</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Inspect.html" title="struct tokio::prelude::future::Inspect">Inspect</a>&lt;Self, F&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>(&amp;Self::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>),&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#922-927' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Do something with the item of a future, passing it on. <a href="../../../tokio/prelude/future/trait.Future.html#method.inspect">Read more</a></p>
</div><h4 id='method.catch_unwind' class="method"><span id='catch_unwind.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.catch_unwind' class='fnname'>catch_unwind</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.CatchUnwind.html" title="struct tokio::prelude::future::CatchUnwind">CatchUnwind</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#961-965' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Catches unwinding panics while polling the future. <a href="../../../tokio/prelude/future/trait.Future.html#method.catch_unwind">Read more</a></p>
</div><h4 id='method.shared' class="method"><span id='shared.v' class='invisible'><code>fn <a href='../../../tokio/prelude/future/trait.Future.html#method.shared' class='fnname'>shared</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/future/struct.Shared.html" title="struct tokio::prelude::future::Shared">Shared</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/mod.rs.html#1010-1014' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Create a cloneable handle to this future where all handles will resolve to the same result. <a href="../../../tokio/prelude/future/trait.Future.html#method.shared">Read more</a></p>
</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl&lt;A, B&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="../../../tokio/prelude/future/struct.Join.html" title="struct tokio::prelude::future::Join">Join</a>&lt;A, B&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;A: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;B: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&lt;Error = &lt;A as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a>&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;A as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;B as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,&nbsp;</span></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/join.rs.html#23-37' 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, fmt: &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="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/future/join.rs.html#31-36' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><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>
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