mentat/tokio/prelude/future/index.html
2018-08-22 17:04:13 +00:00

544 lines
No EOL
27 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 `future` mod in crate `tokio`.">
<meta name="keywords" content="rust, rustlang, rust-lang, future">
<title>tokio::prelude::future - 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 mod">
<!--[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'>Module future</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#traits">Traits</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'><a href='../../index.html'>tokio</a>::<wbr><a href='../index.html'>prelude</a></p><script>window.sidebarCurrent = {name: 'future', ty: 'mod', 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'>Module <a href='../../index.html'>tokio</a>::<wbr><a href='../index.html'>prelude</a>::<wbr><a class="mod" href=''>future</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/lib.rs.html#177' title='goto source code'>[src]</a></span></h1>
<div class='docblock'><p>Futures</p>
<p>This module contains the <code>Future</code> trait and a number of adaptors for this
trait. See the crate docs, and the docs for <code>Future</code>, for full detail.</p>
</div><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
<table>
<tr class=' module-item'>
<td><a class="struct" href="struct.AndThen.html"
title='struct tokio::prelude::future::AndThen'>AndThen</a></td>
<td class='docblock-short'>
<p>Future for the <code>and_then</code> combinator, chaining a computation onto the end of
another future which completes successfully.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.CatchUnwind.html"
title='struct tokio::prelude::future::CatchUnwind'>CatchUnwind</a></td>
<td class='docblock-short'>
<p>Future for the <code>catch_unwind</code> combinator.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Done.html"
title='struct tokio::prelude::future::Done'>Done</a></td>
<td class='docblock-short'>
<p>A future representing a value that is immediately ready.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Empty.html"
title='struct tokio::prelude::future::Empty'>Empty</a></td>
<td class='docblock-short'>
<p>A future which is never resolved.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.ExecuteError.html"
title='struct tokio::prelude::future::ExecuteError'>ExecuteError</a></td>
<td class='docblock-short'>
<p>Errors returned from the <code>Spawn::spawn</code> function.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Flatten.html"
title='struct tokio::prelude::future::Flatten'>Flatten</a></td>
<td class='docblock-short'>
<p>Future for the <code>flatten</code> combinator, flattening a future-of-a-future to get just
the result of the final future.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.FlattenStream.html"
title='struct tokio::prelude::future::FlattenStream'>FlattenStream</a></td>
<td class='docblock-short'>
<p>Future for the <code>flatten_stream</code> combinator, flattening a
future-of-a-stream to get just the result of the final stream as a stream.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.FromErr.html"
title='struct tokio::prelude::future::FromErr'>FromErr</a></td>
<td class='docblock-short'>
<p>Future for the <code>from_err</code> combinator, changing the error type of a future.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Fuse.html"
title='struct tokio::prelude::future::Fuse'>Fuse</a></td>
<td class='docblock-short'>
<p>A future which &quot;fuses&quot; a future once it's been resolved.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Inspect.html"
title='struct tokio::prelude::future::Inspect'>Inspect</a></td>
<td class='docblock-short'>
<p>Do something with the item of a future, passing it on.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.IntoStream.html"
title='struct tokio::prelude::future::IntoStream'>IntoStream</a></td>
<td class='docblock-short'>
<p>Future that forwards one element from the underlying future
(whether it is success of error) and emits EOF after that.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Join.html"
title='struct tokio::prelude::future::Join'>Join</a></td>
<td class='docblock-short'>
<p>Future for the <code>join</code> combinator, waiting for two futures to
complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Join3.html"
title='struct tokio::prelude::future::Join3'>Join3</a></td>
<td class='docblock-short'>
<p>Future for the <code>join3</code> combinator, waiting for three futures to
complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Join4.html"
title='struct tokio::prelude::future::Join4'>Join4</a></td>
<td class='docblock-short'>
<p>Future for the <code>join4</code> combinator, waiting for four futures to
complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Join5.html"
title='struct tokio::prelude::future::Join5'>Join5</a></td>
<td class='docblock-short'>
<p>Future for the <code>join5</code> combinator, waiting for five futures to
complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.JoinAll.html"
title='struct tokio::prelude::future::JoinAll'>JoinAll</a></td>
<td class='docblock-short'>
<p>A future which takes a list of futures and resolves with a vector of the
completed values.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Lazy.html"
title='struct tokio::prelude::future::Lazy'>Lazy</a></td>
<td class='docblock-short'>
<p>A future which defers creation of the actual future until a callback is
scheduled.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.LoopFn.html"
title='struct tokio::prelude::future::LoopFn'>LoopFn</a></td>
<td class='docblock-short'>
<p>A future implementing a tail-recursive loop.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Map.html"
title='struct tokio::prelude::future::Map'>Map</a></td>
<td class='docblock-short'>
<p>Future for the <code>map</code> combinator, changing the type of a future.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.MapErr.html"
title='struct tokio::prelude::future::MapErr'>MapErr</a></td>
<td class='docblock-short'>
<p>Future for the <code>map_err</code> combinator, changing the error type of a future.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.OrElse.html"
title='struct tokio::prelude::future::OrElse'>OrElse</a></td>
<td class='docblock-short'>
<p>Future for the <code>or_else</code> combinator, chaining a computation onto the end of
a future which fails with an error.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.PollFn.html"
title='struct tokio::prelude::future::PollFn'>PollFn</a></td>
<td class='docblock-short'>
<p>A future which adapts a function returning <code>Poll</code>.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Select.html"
title='struct tokio::prelude::future::Select'>Select</a></td>
<td class='docblock-short'>
<p>Future for the <code>select</code> combinator, waiting for one of two futures to
complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Select2.html"
title='struct tokio::prelude::future::Select2'>Select2</a></td>
<td class='docblock-short'>
<p>Future for the <code>select2</code> combinator, waiting for one of two differently-typed
futures to complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.SelectAll.html"
title='struct tokio::prelude::future::SelectAll'>SelectAll</a></td>
<td class='docblock-short'>
<p>Future for the <code>select_all</code> combinator, waiting for one of any of a list of
futures to complete.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.SelectNext.html"
title='struct tokio::prelude::future::SelectNext'>SelectNext</a></td>
<td class='docblock-short'>
<p>Future yielded as the second result in a <code>Select</code> future.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.SelectOk.html"
title='struct tokio::prelude::future::SelectOk'>SelectOk</a></td>
<td class='docblock-short'>
<p>Future for the <code>select_ok</code> combinator, waiting for one of any of a list of
futures to successfully complete. Unlike <code>select_all</code>, this future ignores all
but the last error, if there are any.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Shared.html"
title='struct tokio::prelude::future::Shared'>Shared</a></td>
<td class='docblock-short'>
<p>A future that is cloneable and can be polled in multiple threads.
Use <code>Future::shared()</code> method to convert any future into a <code>Shared</code> future.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.SharedError.html"
title='struct tokio::prelude::future::SharedError'>SharedError</a></td>
<td class='docblock-short'>
<p>A wrapped error of the original future that is cloneable and implements Deref
for ease of use.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.SharedItem.html"
title='struct tokio::prelude::future::SharedItem'>SharedItem</a></td>
<td class='docblock-short'>
<p>A wrapped item of the original future that is cloneable and implements Deref
for ease of use.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Then.html"
title='struct tokio::prelude::future::Then'>Then</a></td>
<td class='docblock-short'>
<p>Future for the <code>then</code> combinator, chaining computations on the end of
another future regardless of its outcome.</p>
</td>
</tr></table><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
<table>
<tr class=' module-item'>
<td><a class="enum" href="enum.Either.html"
title='enum tokio::prelude::future::Either'>Either</a></td>
<td class='docblock-short'>
<p>Combines two different futures yielding the same item and error
types into a single type.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="enum" href="enum.ExecuteErrorKind.html"
title='enum tokio::prelude::future::ExecuteErrorKind'>ExecuteErrorKind</a></td>
<td class='docblock-short'>
<p>Kinds of errors that can be returned from the <code>Execute::spawn</code> function.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="enum" href="enum.Loop.html"
title='enum tokio::prelude::future::Loop'>Loop</a></td>
<td class='docblock-short'>
<p>The status of a <code>loop_fn</code> loop.</p>
</td>
</tr></table><h2 id='traits' class='section-header'><a href="#traits">Traits</a></h2>
<table>
<tr class=' module-item'>
<td><a class="trait" href="trait.Executor.html"
title='trait tokio::prelude::future::Executor'>Executor</a></td>
<td class='docblock-short'>
<p>A trait for types which can spawn fresh futures.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="trait" href="trait.Future.html"
title='trait tokio::prelude::future::Future'>Future</a></td>
<td class='docblock-short'>
<p>Trait for types which are a placeholder of a value that may become
available at some later point in time.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="trait" href="trait.FutureFrom.html"
title='trait tokio::prelude::future::FutureFrom'>FutureFrom</a></td>
<td class='docblock-short'>
<p>Asynchronous conversion from a type <code>T</code>.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="trait" href="trait.IntoFuture.html"
title='trait tokio::prelude::future::IntoFuture'>IntoFuture</a></td>
<td class='docblock-short'>
<p>Class of types which can be converted into a future.</p>
</td>
</tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
<table>
<tr class=' module-item'>
<td><a class="fn" href="fn.collect.html"
title='fn tokio::prelude::future::collect'>collect</a></td>
<td class='docblock-short'>
<p>Creates a future which represents a collection of the results of the futures
given.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.done.html"
title='fn tokio::prelude::future::done'>done</a></td>
<td class='docblock-short'>
<p>Creates a new &quot;leaf future&quot; which will resolve with the given result.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.empty.html"
title='fn tokio::prelude::future::empty'>empty</a></td>
<td class='docblock-short'>
<p>Creates a future which never resolves, representing a computation that never
finishes.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.failed.html"
title='fn tokio::prelude::future::failed'>failed</a></td>
<td class='docblock-short'>
<p>Creates a &quot;leaf future&quot; from an immediate value of a failed computation.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.lazy.html"
title='fn tokio::prelude::future::lazy'>lazy</a></td>
<td class='docblock-short'>
<p>Creates a new future which will eventually be the same as the one created
by the closure provided.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.loop_fn.html"
title='fn tokio::prelude::future::loop_fn'>loop_fn</a></td>
<td class='docblock-short'>
<p>Creates a new future implementing a tail-recursive loop.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.ok.html"
title='fn tokio::prelude::future::ok'>ok</a></td>
<td class='docblock-short'>
<p>Creates a &quot;leaf future&quot; from an immediate value of a finished and
successful computation.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.poll_fn.html"
title='fn tokio::prelude::future::poll_fn'>poll_fn</a></td>
<td class='docblock-short'>
<p>Creates a new future wrapping around a function returning <code>Poll</code>.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.select_all.html"
title='fn tokio::prelude::future::select_all'>select_all</a></td>
<td class='docblock-short'>
<p>Creates a new future which will select over a list of futures.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.select_ok.html"
title='fn tokio::prelude::future::select_ok'>select_ok</a></td>
<td class='docblock-short'>
<p>Creates a new future which will select the first successful future over a list of futures.</p>
</td>
</tr></table></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";
</script>
<script src="../../../main.js"></script>
<script defer src="../../../search-index.js"></script>
</body>
</html>