mentat/tokio_io/io/struct.Window.html
2018-08-22 17:04:13 +00:00

190 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 `Window` struct in crate `tokio_io`.">
<meta name="keywords" content="rust, rustlang, rust-lang, Window">
<title>tokio_io::io::Window - 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 Window</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a><a href="#method.get_ref">get_ref</a><a href="#method.get_mut">get_mut</a><a href="#method.into_inner">into_inner</a><a href="#method.start">start</a><a href="#method.end">end</a><a href="#method.set_start">set_start</a><a href="#method.set_end">set_end</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-AsRef%3C%5Bu8%5D%3E">AsRef&lt;[u8]&gt;</a><a href="#impl-AsMut%3C%5Bu8%5D%3E">AsMut&lt;[u8]&gt;</a></div></div><p class='location'><a href='../index.html'>tokio_io</a>::<wbr><a href='index.html'>io</a></p><script>window.sidebarCurrent = {name: 'Window', 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'>tokio_io</a>::<wbr><a href='index.html'>io</a>::<wbr><a class="struct" href=''>Window</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/tokio_io/window.rs.html#21-24' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'>pub struct Window&lt;T&gt; { /* fields omitted */ }</pre><div class='docblock'><p>A owned window around an underlying buffer.</p>
<p>Normally slices work great for considering sub-portions of a buffer, but
unfortunately a slice is a <em>borrowed</em> type in Rust which has an associated
lifetime. When working with future and async I/O these lifetimes are not
always appropriate, and are sometimes difficult to store in tasks. This
type strives to fill this gap by providing an &quot;owned slice&quot; around an
underlying buffer of bytes.</p>
<p>A <code>Window&lt;T&gt;</code> wraps an underlying buffer, <code>T</code>, and has configurable
start/end indexes to alter the behavior of the <code>AsRef&lt;[u8]&gt;</code> implementation
that this type carries.</p>
<p>This type can be particularly useful when working with the <code>write_all</code>
combinator in this crate. Data can be sliced via <code>Window</code>, consumed by
<code>write_all</code>, and then earned back once the write operation finishes through
the <code>into_inner</code> method on this type.</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&lt;T:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt; <a class="struct" href="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#26-105' 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>pub fn <a href='#method.new' class='fnname'>new</a>(t: T) -&gt; <a class="struct" href="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#32-37' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a new window around the buffer <code>t</code> defaulting to the entire
slice.</p>
<p>Further methods can be called on the returned <code>Window&lt;T&gt;</code> to alter the
window into the data provided.</p>
</div><h4 id='method.get_ref' class="method"><span id='get_ref.v' class='invisible'><code>pub fn <a href='#method.get_ref' class='fnname'>get_ref</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#41-43' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Gets a shared reference to the underlying buffer inside of this
<code>Window</code>.</p>
</div><h4 id='method.get_mut' class="method"><span id='get_mut.v' class='invisible'><code>pub fn <a href='#method.get_mut' class='fnname'>get_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></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#47-49' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Gets a mutable reference to the underlying buffer inside of this
<code>Window</code>.</p>
</div><h4 id='method.into_inner' class="method"><span id='into_inner.v' class='invisible'><code>pub fn <a href='#method.into_inner' class='fnname'>into_inner</a>(self) -&gt; T</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#52-54' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Consumes this <code>Window</code>, returning the underlying buffer.</p>
</div><h4 id='method.start' class="method"><span id='start.v' class='invisible'><code>pub fn <a href='#method.start' class='fnname'>start</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#58-60' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the starting index of this window into the underlying buffer
<code>T</code>.</p>
</div><h4 id='method.end' class="method"><span id='end.v' class='invisible'><code>pub fn <a href='#method.end' class='fnname'>end</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#64-66' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the end index of this window into the underlying buffer
<code>T</code>.</p>
</div><h4 id='method.set_start' class="method"><span id='set_start.v' class='invisible'><code>pub fn <a href='#method.set_start' class='fnname'>set_start</a>(&amp;mut self, start: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; &amp;mut <a class="struct" href="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#76-81' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Changes the starting index of this window to the index specified.</p>
<p>Returns the windows back to chain multiple calls to this method.</p>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p>This method will panic if <code>start</code> is out of bounds for the underlying
slice or if it comes after the <code>end</code> configured in this window.</p>
</div><h4 id='method.set_end' class="method"><span id='set_end.v' class='invisible'><code>pub fn <a href='#method.set_end' class='fnname'>set_end</a>(&amp;mut self, end: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; &amp;mut <a class="struct" href="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#91-96' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Changes the end index of this window to the index specified.</p>
<p>Returns the windows back to chain multiple calls to this method.</p>
<h1 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h1>
<p>This method will panic if <code>end</code> is out of bounds for the underlying
slice or if it comes before the <code>start</code> configured in this window.</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&lt;T:&nbsp;<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="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#20' 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, __arg_0: &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/tokio_io/window.rs.html#20' 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><h3 id='impl-AsRef%3C%5Bu8%5D%3E' class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt; for <a class="struct" href="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code><a href='#impl-AsRef%3C%5Bu8%5D%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#107-111' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.as_ref' class="method"><span id='as_ref.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.AsRef.html#tymethod.as_ref' class='fnname'>as_ref</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#108-110' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the conversion.</p>
</div></div><h3 id='impl-AsMut%3C%5Bu8%5D%3E' class='impl'><span class='in-band'><code>impl&lt;T:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.AsMut.html" title="trait core::convert::AsMut">AsMut</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt;&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.AsMut.html" title="trait core::convert::AsMut">AsMut</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>&gt; for <a class="struct" href="../../tokio_io/io/struct.Window.html" title="struct tokio_io::io::Window">Window</a>&lt;T&gt;</code><a href='#impl-AsMut%3C%5Bu8%5D%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#113-117' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.as_mut' class="method"><span id='as_mut.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.AsMut.html#tymethod.as_mut' class='fnname'>as_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/tokio_io/window.rs.html#114-116' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Performs the conversion.</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 = "tokio_io";
</script>
<script src="../../main.js"></script>
<script defer src="../../search-index.js"></script>
</body>
</html>