mentat/tokio_fs/struct.OpenOptions.html
2018-08-22 17:04:13 +00:00

178 lines
No EOL
18 KiB
HTML
Raw 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 `OpenOptions` struct in crate `tokio_fs`.">
<meta name="keywords" content="rust, rustlang, rust-lang, OpenOptions">
<title>tokio_fs::OpenOptions - 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 OpenOptions</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.read">read</a><a href="#method.write">write</a><a href="#method.append">append</a><a href="#method.truncate">truncate</a><a href="#method.create">create</a><a href="#method.create_new">create_new</a><a href="#method.open">open</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-From%3CStdOpenOptions%3E">From&lt;StdOpenOptions&gt;</a></div></div><p class='location'><a href='index.html'>tokio_fs</a></p><script>window.sidebarCurrent = {name: 'OpenOptions', 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_fs</a>::<wbr><a class="struct" href=''>OpenOptions</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_fs/file/open_options.rs.html#17' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'>pub struct OpenOptions(_);</pre><div class='docblock'><p>Options and flags which can be used to configure how a file is opened.</p>
<p>This is a specialized version of <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html"><code>std::fs::OpenOptions</code></a> for usage from
the Tokio runtime.</p>
<p><code>From&lt;std::fs::OpenOptions&gt;</code> is implemented for more advanced configuration
than the methods provided here.</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="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#19-97' 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>() -&gt; <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#32-34' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a blank new set of options ready for configuration.</p>
<p>All options are initially set to <code>false</code>.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<div class='information'><div class='tooltip ignore'><span class='tooltiptext'>This example is not tested</span></div></div><pre class="rust rust-example-rendered ignore">
<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">fs</span>::<span class="ident">OpenOptions</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">options</span> <span class="op">=</span> <span class="ident">OpenOptions</span>::<span class="ident">new</span>();
<span class="kw">let</span> <span class="ident">future</span> <span class="op">=</span> <span class="ident">options</span>.<span class="ident">read</span>(<span class="bool-val">true</span>).<span class="ident">open</span>(<span class="string">&quot;foo.txt&quot;</span>);</pre>
</div><h4 id='method.read' class="method"><span id='read.v' class='invisible'><code>pub fn <a href='#method.read' class='fnname'>read</a>(&amp;mut self, read: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; &amp;mut <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#39-42' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>See the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.read"><code>read</code></a> call for details.</p>
</div><h4 id='method.write' class="method"><span id='write.v' class='invisible'><code>pub fn <a href='#method.write' class='fnname'>write</a>(&amp;mut self, write: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; &amp;mut <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#47-50' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>See the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.write"><code>write</code></a> call for details.</p>
</div><h4 id='method.append' class="method"><span id='append.v' class='invisible'><code>pub fn <a href='#method.append' class='fnname'>append</a>(&amp;mut self, append: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; &amp;mut <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#55-58' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>See the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.append"><code>append</code></a> call for details.</p>
</div><h4 id='method.truncate' class="method"><span id='truncate.v' class='invisible'><code>pub fn <a href='#method.truncate' class='fnname'>truncate</a>(&amp;mut self, truncate: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; &amp;mut <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#63-66' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>See the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.truncate"><code>truncate</code></a> call for details.</p>
</div><h4 id='method.create' class="method"><span id='create.v' class='invisible'><code>pub fn <a href='#method.create' class='fnname'>create</a>(&amp;mut self, create: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; &amp;mut <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#71-74' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>See the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.create"><code>create</code></a> call for details.</p>
</div><h4 id='method.create_new' class="method"><span id='create_new.v' class='invisible'><code>pub fn <a href='#method.create_new' class='fnname'>create_new</a>(&amp;mut self, create_new: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; &amp;mut <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#79-82' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>See the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.create_new"><code>create_new</code></a> call for details.</p>
</div><h4 id='method.open' class="method"><span id='open.v' class='invisible'><code>pub fn <a href='#method.open' class='fnname'>open</a>&lt;P&gt;(&amp;self, path: P) -&gt; <a class="struct" href="../tokio_fs/file/struct.OpenFuture.html" title="struct tokio_fs::file::OpenFuture">OpenFuture</a>&lt;P&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;P: <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="struct" href="https://doc.rust-lang.org/nightly/std/path/struct.Path.html" title="struct std::path::Path">Path</a>&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'static,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#92-96' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Opens a file at <code>path</code> with the options specified by <code>self</code>.</p>
<h1 id="errors" class="section-header"><a href="#errors">Errors</a></h1>
<p><code>OpenOptionsFuture</code> results in an error if called from outside of the
Tokio runtime or if the underlying <a href="https://doc.rust-lang.org/std/fs/struct.OpenOptions.html#method.open"><code>open</code></a> call results in an error.</p>
</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="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#16' 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="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#16' 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-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="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#16' 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_fs/file/open_options.rs.html#16' 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-From%3CStdOpenOptions%3E' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/std/fs/struct.OpenOptions.html" title="struct std::fs::OpenOptions">StdOpenOptions</a>&gt; for <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code><a href='#impl-From%3CStdOpenOptions%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#99-103' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.from' class="method"><span id='from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(options: <a class="struct" href="https://doc.rust-lang.org/nightly/std/fs/struct.OpenOptions.html" title="struct std::fs::OpenOptions">StdOpenOptions</a>) -&gt; <a class="struct" href="../tokio_fs/struct.OpenOptions.html" title="struct tokio_fs::OpenOptions">OpenOptions</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/tokio_fs/file/open_options.rs.html#100-102' 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_fs";
</script>
<script src="../main.js"></script>
<script defer src="../search-index.js"></script>
</body>
</html>