mentat/mio/struct.SetReadiness.html
2018-08-22 17:04:13 +00:00

216 lines
No EOL
18 KiB
HTML
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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 `SetReadiness` struct in crate `mio`.">
<meta name="keywords" content="rust, rustlang, rust-lang, SetReadiness">
<title>mio::SetReadiness - 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">&#9776;</div>
<p class='location'>Struct SetReadiness</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.readiness">readiness</a><a href="#method.set_readiness">set_readiness</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Debug">Debug</a></div></div><p class='location'><a href='index.html'>mio</a></p><script>window.sidebarCurrent = {name: 'SetReadiness', 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'>mio</a>::<wbr><a class="struct" href=''>SetReadiness</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/mio/poll.rs.html#454-456' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'>pub struct SetReadiness { /* fields omitted */ }</pre><div class='docblock'><p>Updates the readiness state of the associated <code>Registration</code>.</p>
<p>See <a href="struct.Registration.html"><code>Registration</code></a> for more documentation on using <code>SetReadiness</code> and
<a href="struct.Poll.html"><code>Poll</code></a> for high level polling documentation.</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 <a class="struct" href="../mio/struct.SetReadiness.html" title="struct mio::SetReadiness">SetReadiness</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#1698-1813' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.readiness' class="method"><span id='readiness.v' class='invisible'><code>pub fn <a href='#method.readiness' class='fnname'>readiness</a>(&amp;self) -&gt; <a class="struct" href="../mio/struct.Ready.html" title="struct mio::Ready">Ready</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#1727-1729' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the registration's current readiness.</p>
<h1 id="note" class="section-header"><a href="#note">Note</a></h1>
<p>There is no guarantee that <code>readiness</code> establishes any sort of memory
ordering. Any concurrent data access must be synchronized using another
strategy.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">mio</span>::{<span class="ident">Registration</span>, <span class="ident">Ready</span>};
<span class="kw">let</span> (<span class="ident">registration</span>, <span class="ident">set_readiness</span>) <span class="op">=</span> <span class="ident">Registration</span>::<span class="ident">new2</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set_readiness</span>.<span class="ident">readiness</span>().<span class="ident">is_empty</span>());
<span class="ident">set_readiness</span>.<span class="ident">set_readiness</span>(<span class="ident">Ready</span>::<span class="ident">readable</span>())<span class="question-mark">?</span>;
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set_readiness</span>.<span class="ident">readiness</span>().<span class="ident">is_readable</span>());</pre>
</div><h4 id='method.set_readiness' class="method"><span id='set_readiness.v' class='invisible'><code>pub fn <a href='#method.set_readiness' class='fnname'>set_readiness</a>(&amp;self, ready: <a class="struct" href="../mio/struct.Ready.html" title="struct mio::Ready">Ready</a>) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#1810-1812' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Set the registration's readiness</p>
<p>If the associated <code>Registration</code> is registered with a <a href="struct.Poll.html"><code>Poll</code></a> instance
and has requested readiness events that include <code>ready</code>, then a future
call to <a href="struct.Poll.html#method.poll"><code>Poll::poll</code></a> will receive a readiness event representing the
readiness state change.</p>
<h1 id="note-1" class="section-header"><a href="#note-1">Note</a></h1>
<p>There is no guarantee that <code>readiness</code> establishes any sort of memory
ordering. Any concurrent data access must be synchronized using another
strategy.</p>
<p>There is also no guarantee as to when the readiness event will be
delivered to poll. A best attempt will be made to make the delivery in a
&quot;timely&quot; fashion. For example, the following is <strong>not</strong> guaranteed to
work:</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">mio</span>::{<span class="ident">Events</span>, <span class="ident">Registration</span>, <span class="ident">Ready</span>, <span class="ident">Poll</span>, <span class="ident">PollOpt</span>, <span class="ident">Token</span>};
<span class="kw">let</span> <span class="ident">poll</span> <span class="op">=</span> <span class="ident">Poll</span>::<span class="ident">new</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> (<span class="ident">registration</span>, <span class="ident">set_readiness</span>) <span class="op">=</span> <span class="ident">Registration</span>::<span class="ident">new2</span>();
<span class="ident">poll</span>.<span class="ident">register</span>(<span class="kw-2">&amp;</span><span class="ident">registration</span>,
<span class="ident">Token</span>(<span class="number">0</span>),
<span class="ident">Ready</span>::<span class="ident">readable</span>(),
<span class="ident">PollOpt</span>::<span class="ident">edge</span>())<span class="question-mark">?</span>;
<span class="comment">// Set the readiness, then immediately poll to try to get the readiness</span>
<span class="comment">// event</span>
<span class="ident">set_readiness</span>.<span class="ident">set_readiness</span>(<span class="ident">Ready</span>::<span class="ident">readable</span>())<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">events</span> <span class="op">=</span> <span class="ident">Events</span>::<span class="ident">with_capacity</span>(<span class="number">1024</span>);
<span class="ident">poll</span>.<span class="ident">poll</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">events</span>, <span class="prelude-val">None</span>)<span class="question-mark">?</span>;
<span class="comment">// There is NO guarantee that the following will work. It is possible</span>
<span class="comment">// that the readiness event will be delivered at a later time.</span>
<span class="kw">let</span> <span class="ident">event</span> <span class="op">=</span> <span class="ident">events</span>.<span class="ident">get</span>(<span class="number">0</span>).<span class="ident">unwrap</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">event</span>.<span class="ident">token</span>(), <span class="ident">Token</span>(<span class="number">0</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">event</span>.<span class="ident">readiness</span>().<span class="ident">is_readable</span>());</pre>
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
<p>A simple example, for a more elaborate example, see the <a href="event/trait.Evented.html#examples"><code>Evented</code></a>
documentation.</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">mio</span>::{<span class="ident">Registration</span>, <span class="ident">Ready</span>};
<span class="kw">let</span> (<span class="ident">registration</span>, <span class="ident">set_readiness</span>) <span class="op">=</span> <span class="ident">Registration</span>::<span class="ident">new2</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set_readiness</span>.<span class="ident">readiness</span>().<span class="ident">is_empty</span>());
<span class="ident">set_readiness</span>.<span class="ident">set_readiness</span>(<span class="ident">Ready</span>::<span class="ident">readable</span>())<span class="question-mark">?</span>;
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set_readiness</span>.<span class="ident">readiness</span>().<span class="ident">is_readable</span>());</pre>
</div></div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<h3 id='impl-Clone' class='impl'><span class='in-band'><code>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="../mio/struct.SetReadiness.html" title="struct mio::SetReadiness">SetReadiness</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#453' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>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="../mio/struct.SetReadiness.html" title="struct mio::SetReadiness">SetReadiness</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#453' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>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><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><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-Send' class='impl'><span class='in-band'><code>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="../mio/struct.SetReadiness.html" title="struct mio::SetReadiness">SetReadiness</a></code><a href='#impl-Send' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#458' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><code>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="../mio/struct.SetReadiness.html" title="struct mio::SetReadiness">SetReadiness</a></code><a href='#impl-Sync' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#459' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>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="../mio/struct.SetReadiness.html" title="struct mio::SetReadiness">SetReadiness</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#1815-1820' 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><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/mio/poll.rs.html#1816-1819' 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>&#9166;</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 = "mio";
</script>
<script src="../main.js"></script>
<script defer src="../search-index.js"></script>
</body>
</html>