<!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 `Wait` struct in crate `futures`.">
<meta name="keywords" content="rust, rustlang, rust-lang, Wait">
<title>futures::sink::Wait - 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="../../main.css" id="themeStyle">
<script src="../../storage.js"></script>
</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">☰</div>
<p class='location'>Struct Wait</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.send">send</a><a href="#method.flush">flush</a><a href="#method.close">close</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a></div></div><p class='location'><a href='../index.html'>futures</a>::<wbr><a href='index.html'>sink</a></p><script>window.sidebarCurrent = {name: 'Wait', 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 js-only">
<div class="search-container">
<input class="search-input" name="search"
autocomplete="off"
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
type="search">
</div>
</form>
</nav>
<section id='main' class="content">
<h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>futures</a>::<wbr><a href='index.html'>sink</a>::<wbr><a class="struct" href=''>Wait</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'>−</span>]
</a>
</span><a class='srclink' href='../../src/futures/sink/wait.rs.html#12-14' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'><div class="docblock attributes">#[must_use = "sinks do nothing unless used"]
</div>pub struct Wait<S> { /* fields omitted */ }</pre><div class='docblock'><p>A sink combinator which converts an asynchronous sink to a <strong>blocking
sink</strong>.</p>
<p>Created by the <code>Sink::wait</code> method, this function transforms any sink into a
blocking version. This is implemented by blocking the current thread when a
sink is otherwise unable to make progress.</p>
</div>
<h2 id='methods' class='small-section-header'>
Methods<a href='#methods' class='anchor'></a>
</h2>
<h3 id='impl' class='impl'><span class='in-band'><code>impl<S: <a class="trait" href="../../futures/sink/trait.Sink.html" title="trait futures::sink::Sink">Sink</a>> <a class="struct" href="../../futures/sink/struct.Wait.html" title="struct futures::sink::Wait">Wait</a><S></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/futures/sink/wait.rs.html#22-59' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.send' class="method"><span id='send.v' class='invisible'><code>pub fn <a href='#method.send' class='fnname'>send</a>(&mut self, value: S::<a class="type" href="../../futures/sink/trait.Sink.html#associatedtype.SinkItem" title="type futures::sink::Sink::SinkItem">SinkItem</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, S::<a class="type" href="../../futures/sink/trait.Sink.html#associatedtype.SinkError" title="type futures::sink::Sink::SinkError">SinkError</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/futures/sink/wait.rs.html#36-38' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Sends a value to this sink, blocking the current thread until it's able
to do so.</p>
<p>This function will take the <code>value</code> provided and call the underlying
sink's <code>start_send</code> function until it's ready to accept the value. If
the function returns <code>NotReady</code> then the current thread is blocked
until it is otherwise ready to accept the value.</p>
<h1 id="return-value" class="section-header"><a href="#return-value">Return value</a></h1>
<p>If <code>Ok(())</code> is returned then the <code>value</code> provided was successfully sent
along the sink, and if <code>Err(e)</code> is returned then an error occurred
which prevented the value from being sent.</p>
</div><h4 id='method.flush' class="method"><span id='flush.v' class='invisible'><code>pub fn <a href='#method.flush' class='fnname'>flush</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, S::<a class="type" href="../../futures/sink/trait.Sink.html#associatedtype.SinkError" title="type futures::sink::Sink::SinkError">SinkError</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/futures/sink/wait.rs.html#47-49' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Flushes any buffered data in this sink, blocking the current thread
until it's entirely flushed.</p>
<p>This function will call the underlying sink's <code>poll_complete</code> method
until it returns that it's ready to proceed. If the method returns
<code>NotReady</code> the current thread will be blocked until it's otherwise
ready to proceed.</p>
</div><h4 id='method.close' class="method"><span id='close.v' class='invisible'><code>pub fn <a href='#method.close' class='fnname'>close</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, S::<a class="type" href="../../futures/sink/trait.Sink.html#associatedtype.SinkError" title="type futures::sink::Sink::SinkError">SinkError</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/futures/sink/wait.rs.html#56-58' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Close this sink, blocking the current thread until it's entirely closed.</p>
<p>This function will call the underlying sink's <code>close</code> method
until it returns that it's closed. If the method returns
<code>NotReady</code> the current thread will be blocked until it's otherwise closed.</p>
</div></div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl<S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>> <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="../../futures/sink/struct.Wait.html" title="struct futures::sink::Wait">Wait</a><S></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/futures/sink/wait.rs.html#11' 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>(&self, __arg_0: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/futures/sink/wait.rs.html#11' 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>
</div></div></section>
<section id='search' class="content hidden"></section>
<section class="footer"></section>
<aside id="help" class="hidden">
<div>
<h1 class="hidden">Help</h1>
<div class="shortcuts">
<h2>Keyboard Shortcuts</h2>
<dl>
<dt><kbd>?</kbd></dt>
<dd>Show this help dialog</dd>
<dt><kbd>S</kbd></dt>
<dd>Focus the search field</dd>
<dt><kbd>↑</kbd></dt>
<dd>Move up in search results</dd>
<dt><kbd>↓</kbd></dt>
<dd>Move down in search results</dd>
<dt><kbd>↹</kbd></dt>
<dd>Switch tab</dd>
<dt><kbd>⏎</kbd></dt>
<dd>Go to active search result</dd>
<dt><kbd>+</kbd></dt>
<dd>Expand all sections</dd>
<dt><kbd>-</kbd></dt>
<dd>Collapse all sections</dd>
</dl>
</div>
<div class="infos">
<h2>Search Tricks</h2>
<p>
Prefix searches with a type followed by a colon (e.g.
<code>fn:</code>) to restrict the search to a given type.
</p>
<p>
Accepted types are: <code>fn</code>, <code>mod</code>,
<code>struct</code>, <code>enum</code>,
<code>trait</code>, <code>type</code>, <code>macro</code>,
and <code>const</code>.
</p>
<p>
Search functions by type signature (e.g.
<code>vec -> usize</code> or <code>* -> vec</code>)
</p>
</div>
</div>
</aside>
<script>
window.rootPath = "../../";
window.currentCrate = "futures";
</script>
<script src="../../main.js"></script>
<script defer src="../../search-index.js"></script>
</body>
</html>