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<!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 `DelayQueue` struct in crate `tokio_timer`."><meta name="keywords" content="rust, rustlang, rust-lang, DelayQueue"><title>tokio_timer::delay_queue::DelayQueue - 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="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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><a href='../../tokio_timer/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><p class='location'>Struct DelayQueue</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.capacity">capacity</a><a href="#method.clear">clear</a><a href="#method.insert">insert</a><a href="#method.insert_at">insert_at</a><a href="#method.is_empty">is_empty</a><a href="#method.new">new</a><a href="#method.remove">remove</a><a href="#method.reserve">reserve</a><a href="#method.reset">reset</a><a href="#method.reset_at">reset_at</a><a href="#method.with_capacity">with_capacity</a><a href="#method.with_capacity_and_handle">with_capacity_and_handle</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Stream">Stream</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">!UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class='location'><a href='../index.html'>tokio_timer</a>::<wbr><a href='index.html'>delay_queue</a></p><script>window.sidebarCurrent = {name: 'DelayQueue', 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"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><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/tokio_timer/delay_queue.rs.html#129-151' title='goto source code'>[src]</a></span><span class='in-band'>Struct <a href='../index.html'>tokio_timer</a>::<wbr><a href='index.html'>delay_queue</a>::<wbr><a class="struct" href=''>DelayQueue</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust struct'>pub struct DelayQueue<T> { /* fields omitted */ }</pre></div><div class='docblock'><p>A queue of delayed elements.</p>
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<p>Once an element is inserted into the <code>DelayQueue</code>, it is yielded once the
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specified deadline has been reached.</p>
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<h1 id="usage" class="section-header"><a href="#usage">Usage</a></h1>
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<p>Elements are inserted into <code>DelayQueue</code> using the <a href="#method.insert"><code>insert</code></a> or
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<a href="#method.insert_at"><code>insert_at</code></a> methods. A deadline is provided with the item and a <a href="struct.Key.html"><code>Key</code></a> is
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returned. The key is used to remove the entry or to change the deadline at
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which it should be yielded back.</p>
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<p>Once delays have been configured, the <code>DelayQueue</code> is used via its
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<a href="https://docs.rs/futures/0.1/futures/stream/trait.Stream.html"><code>Stream</code></a> implementation. <a href="#method.poll"><code>poll</code></a> is called. If an entry has reached its
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deadline, it is returned. If not, <code>Async::NotReady</code> indicating that the
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current task will be notified once the deadline has been reached.</p>
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<h1 id="stream-implementation" class="section-header"><a href="#stream-implementation"><code>Stream</code> implementation</a></h1>
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<p>Items are retrieved from the queue via <a href="#method.poll"><code>Stream::poll</code></a>. If no delays have
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expired, no items are returned. In this case, <code>NotReady</code> is returned and the
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current task is registered to be notified once the next item's delay has
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expired.</p>
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<p>If no items are in the queue, i.e. <code>is_empty()</code> returns <code>true</code>, then <code>poll</code>
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returns <code>Ready(None)</code>. This indicates that the stream has reached an end.
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However, if a new item is inserted <em>after</em>, <code>poll</code> will once again start
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returning items or `NotReady.</p>
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<p>Items are returned ordered by their expirations. Items that are configured
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to expire first will be returned first. There are no ordering guarantees
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for items configured to expire the same instant. Also note that delays are
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rounded to the closest millisecond.</p>
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<h1 id="implementation" class="section-header"><a href="#implementation">Implementation</a></h1>
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<p>The <code>DelayQueue</code> is backed by the same hashed timing wheel implementation as
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<a href="../struct.Timer.html"><code>Timer</code></a> as such, it offers the same performance benefits. See <a href="../struct.Timer.html"><code>Timer</code></a>
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for further implementation notes.</p>
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<p>State associated with each entry is stored in a <a href="https://docs.rs/slab"><code>slab</code></a>. This allows
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amortizing the cost of allocation. Space created for expired entries is
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reused when inserting new entries.</p>
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<p>Capacity can be checked using <a href="#method.capacity"><code>capacity</code></a> and allocated preemptively by using
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the <a href="#method.reserve"><code>reserve</code></a> method.</p>
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<h1 id="usage-1" class="section-header"><a href="#usage-1">Usage</a></h1>
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<p>Using <code>DelayQueue</code> to manage cache entries.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="attribute">#[<span class="ident">macro_use</span>]</span>
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<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">futures</span>;
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<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">tokio</span>;
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<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::{<span class="ident">delay_queue</span>, <span class="ident">DelayQueue</span>, <span class="ident">Error</span>};
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<span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Async</span>, <span class="ident">Poll</span>, <span class="ident">Stream</span>};
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">HashMap</span>;
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
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<span class="kw">struct</span> <span class="ident">Cache</span> {
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<span class="ident">entries</span>: <span class="ident">HashMap</span><span class="op"><</span><span class="ident">CacheKey</span>, (<span class="ident">Value</span>, <span class="ident">delay_queue</span>::<span class="ident">Key</span>)<span class="op">></span>,
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<span class="ident">expirations</span>: <span class="ident">DelayQueue</span><span class="op"><</span><span class="ident">CacheKey</span><span class="op">></span>,
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}
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<span class="kw">const</span> <span class="ident">TTL_SECS</span>: <span class="ident">u64</span> <span class="op">=</span> <span class="number">30</span>;
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<span class="kw">impl</span> <span class="ident">Cache</span> {
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<span class="kw">fn</span> <span class="ident">insert</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="ident">CacheKey</span>, <span class="ident">value</span>: <span class="ident">Value</span>) {
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<span class="kw">let</span> <span class="ident">delay</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">expirations</span>
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.<span class="ident">insert</span>(<span class="ident">key</span>.<span class="ident">clone</span>(), <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="ident">TTL_SECS</span>));
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<span class="self">self</span>.<span class="ident">entries</span>.<span class="ident">insert</span>(<span class="ident">key</span>, (<span class="ident">value</span>, <span class="ident">delay</span>));
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}
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<span class="kw">fn</span> <span class="ident">get</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">CacheKey</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">Value</span><span class="op">></span> {
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<span class="self">self</span>.<span class="ident">entries</span>.<span class="ident">get</span>(<span class="ident">key</span>)
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.<span class="ident">map</span>(<span class="op">|</span><span class="kw-2">&</span>(<span class="kw-2">ref</span> <span class="ident">v</span>, <span class="kw">_</span>)<span class="op">|</span> <span class="ident">v</span>)
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}
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<span class="kw">fn</span> <span class="ident">remove</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="kw-2">&</span><span class="ident">CacheKey</span>) {
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<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="kw">_</span>, <span class="ident">cache_key</span>)) <span class="op">=</span> <span class="self">self</span>.<span class="ident">entries</span>.<span class="ident">remove</span>(<span class="ident">key</span>) {
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<span class="self">self</span>.<span class="ident">expirations</span>.<span class="ident">remove</span>(<span class="kw-2">&</span><span class="ident">cache_key</span>);
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}
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}
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<span class="kw">fn</span> <span class="ident">poll_purge</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Poll</span><span class="op"><</span>(), <span class="ident">Error</span><span class="op">></span> {
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<span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">entry</span>) <span class="op">=</span> <span class="macro">try_ready</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">expirations</span>.<span class="ident">poll</span>()) {
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<span class="self">self</span>.<span class="ident">entries</span>.<span class="ident">remove</span>(<span class="ident">entry</span>.<span class="ident">get_ref</span>());
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}
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<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(()))
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}
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}</pre></div>
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</div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><code class='in-band'>impl<T> <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a href='#impl' class='anchor'></a><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#211-710' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.new' class="method"><code id='new.v'>pub fn <a href='#method.new' class='fnname'>new</a>() -> <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#222-224' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create a new, empty, <code>DelayQueue</code></p>
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<p>The queue will not allocate storage until items are inserted into it.</p>
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<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="ident">delay_queue</span>: <span class="ident">DelayQueue</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();</pre></div>
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</div><h4 id='method.with_capacity_and_handle' class="method"><code id='with_capacity_and_handle.v'>pub fn <a href='#method.with_capacity_and_handle' class='fnname'>with_capacity_and_handle</a>(<br> capacity: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> handle: &<a class="struct" href="../../tokio_timer/timer/struct.Handle.html" title="struct tokio_timer::timer::Handle">Handle</a><br>) -> <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#239-249' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create a new, empty, <code>DelayQueue</code> backed by the specified timer.</p>
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<p>The queue will not allocate storage until items are inserted into it.</p>
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<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">tokio_timer</span>::<span class="ident">timer</span>::<span class="ident">Handle</span>;
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<span class="kw">let</span> <span class="ident">handle</span> <span class="op">=</span> <span class="ident">Handle</span>::<span class="ident">default</span>();
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<span class="kw">let</span> <span class="ident">delay_queue</span>: <span class="ident">DelayQueue</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">with_capacity_and_handle</span>(<span class="number">0</span>, <span class="kw-2">&</span><span class="ident">handle</span>);</pre></div>
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</div><h4 id='method.with_capacity' class="method"><code id='with_capacity.v'>pub fn <a href='#method.with_capacity' class='fnname'>with_capacity</a>(capacity: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#272-274' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create a new, empty, <code>DelayQueue</code> with the specified capacity.</p>
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<p>The queue will be able to hold at least <code>capacity</code> elements without
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reallocating. If <code>capacity</code> is 0, the queue will not allocate for
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storage.</p>
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<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">with_capacity</span>(<span class="number">10</span>);
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<span class="comment">// These insertions are done without further allocation</span>
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<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">10</span> {
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<span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="ident">i</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="ident">i</span>));
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}
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<span class="comment">// This will make the queue allocate additional storage</span>
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<span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="number">11</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">11</span>));</pre></div>
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</div><h4 id='method.insert_at' class="method"><code id='insert_at.v'>pub fn <a href='#method.insert_at' class='fnname'>insert_at</a>(&mut self, value: T, when: <a class="struct" href="https://doc.rust-lang.org/nightly/std/time/struct.Instant.html" title="struct std::time::Instant">Instant</a>) -> <a class="struct" href="../../tokio_timer/delay_queue/struct.Key.html" title="struct tokio_timer::delay_queue::Key">Key</a></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#324-354' title='goto source code'>[src]</a></h4><div class='docblock'><p>Insert <code>value</code> into the queue set to expire at a specific instant in
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time.</p>
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<p>This function is identical to <code>insert</code>, but takes an <code>Instant</code> instead
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of a <code>Duration</code>.</p>
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<p><code>value</code> is stored in the queue until <code>when</code> is reached. At which point,
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<code>value</code> will be returned from <a href="#method.poll"><code>poll</code></a>. If <code>when</code> has already been
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reached, then <code>value</code> is immediately made available to poll.</p>
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<p>The return value represents the insertion and is used at an argument to
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<a href="#method.remove"><code>remove</code></a> and <a href="#method.reset"><code>reset</code></a>. Note that <a href="struct.Key.html"><code>Key</code></a> is token and is reused once
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<code>value</code> is removed from the queue either by calling <a href="#method.poll"><code>poll</code></a> after
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<code>when</code> is reached or by calling <a href="#method.remove"><code>remove</code></a>. At this point, the caller
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must take care to not use the returned <a href="struct.Key.html"><code>Key</code></a> again as it may reference
|
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a different item in the queue.</p>
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<p>See <a href="#">type</a> level documentation for more details.</p>
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<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
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<p>This function panics if <code>when</code> is too far in the future.</p>
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<h1 id="examples-3" class="section-header"><a href="#examples-3">Examples</a></h1>
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<p>Basic usage</p>
|
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::<span class="ident">DelayQueue</span>;
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::{<span class="ident">Instant</span>, <span class="ident">Duration</span>};
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
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<span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">insert_at</span>(
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<span class="string">"foo"</span>, <span class="ident">Instant</span>::<span class="ident">now</span>() <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
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<span class="comment">// Remove the entry</span>
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<span class="kw">let</span> <span class="ident">item</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">remove</span>(<span class="kw-2">&</span><span class="ident">key</span>);
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">*</span><span class="ident">item</span>.<span class="ident">get_ref</span>(), <span class="string">"foo"</span>);</pre></div>
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</div><h4 id='method.insert' class="method"><code id='insert.v'>pub fn <a href='#method.insert' class='fnname'>insert</a>(&mut self, value: T, timeout: <a class="struct" href="https://doc.rust-lang.org/nightly/core/time/struct.Duration.html" title="struct core::time::Duration">Duration</a>) -> <a class="struct" href="../../tokio_timer/delay_queue/struct.Key.html" title="struct tokio_timer::delay_queue::Key">Key</a></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#404-406' title='goto source code'>[src]</a></h4><div class='docblock'><p>Insert <code>value</code> into the queue set to expire after the requested duration
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elapses.</p>
|
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<p>This function is identical to <code>insert_at</code>, but takes a <code>Duration</code>
|
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instead of an <code>Instant</code>.</p>
|
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<p><code>value</code> is stored in the queue until <code>when</code> is reached. At which point,
|
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<code>value</code> will be returned from <a href="#method.poll"><code>poll</code></a>. If <code>when</code> has already been
|
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reached, then <code>value</code> is immediately made available to poll.</p>
|
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<p>The return value represents the insertion and is used at an argument to
|
||
<a href="#method.remove"><code>remove</code></a> and <a href="#method.reset"><code>reset</code></a>. Note that <a href="struct.Key.html"><code>Key</code></a> is token and is reused once
|
||
<code>value</code> is removed from the queue either by calling <a href="#method.poll"><code>poll</code></a> after
|
||
<code>when</code> is reached or by calling <a href="#method.remove"><code>remove</code></a>. At this point, the caller
|
||
must take care to not use the returned <a href="struct.Key.html"><code>Key</code></a> again as it may reference
|
||
a different item in the queue.</p>
|
||
<p>See <a href="#">type</a> level documentation for more details.</p>
|
||
<h1 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h1>
|
||
<p>This function panics if <code>timeout</code> is greater than the maximum supported
|
||
duration.</p>
|
||
<h1 id="examples-4" class="section-header"><a href="#examples-4">Examples</a></h1>
|
||
<p>Basic usage</p>
|
||
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::<span class="ident">DelayQueue</span>;
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
<span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"foo"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
|
||
|
||
<span class="comment">// Remove the entry</span>
|
||
<span class="kw">let</span> <span class="ident">item</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">remove</span>(<span class="kw-2">&</span><span class="ident">key</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">*</span><span class="ident">item</span>.<span class="ident">get_ref</span>(), <span class="string">"foo"</span>);</pre></div>
|
||
</div><h4 id='method.remove' class="method"><code id='remove.v'>pub fn <a href='#method.remove' class='fnname'>remove</a>(&mut self, key: &<a class="struct" href="../../tokio_timer/delay_queue/struct.Key.html" title="struct tokio_timer::delay_queue::Key">Key</a>) -> <a class="struct" href="../../tokio_timer/delay_queue/struct.Expired.html" title="struct tokio_timer::delay_queue::Expired">Expired</a><T></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#451-468' title='goto source code'>[src]</a></h4><div class='docblock'><p>Remove the item associated with <code>key</code> from the queue.</p>
|
||
<p>There must be an item associated with <code>key</code>. The function returns the
|
||
removed item as well as the <code>Instant</code> at which it will the delay will
|
||
have expired.</p>
|
||
<h1 id="panics-2" class="section-header"><a href="#panics-2">Panics</a></h1>
|
||
<p>The function panics if <code>key</code> is not contained by the queue.</p>
|
||
<h1 id="examples-5" class="section-header"><a href="#examples-5">Examples</a></h1>
|
||
<p>Basic usage</p>
|
||
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::<span class="ident">DelayQueue</span>;
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
<span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"foo"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
|
||
|
||
<span class="comment">// Remove the entry</span>
|
||
<span class="kw">let</span> <span class="ident">item</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">remove</span>(<span class="kw-2">&</span><span class="ident">key</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">*</span><span class="ident">item</span>.<span class="ident">get_ref</span>(), <span class="string">"foo"</span>);</pre></div>
|
||
</div><h4 id='method.reset_at' class="method"><code id='reset_at.v'>pub fn <a href='#method.reset_at' class='fnname'>reset_at</a>(&mut self, key: &<a class="struct" href="../../tokio_timer/delay_queue/struct.Key.html" title="struct tokio_timer::delay_queue::Key">Key</a>, when: <a class="struct" href="https://doc.rust-lang.org/nightly/std/time/struct.Instant.html" title="struct std::time::Instant">Instant</a>)</code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#504-517' title='goto source code'>[src]</a></h4><div class='docblock'><p>Sets the delay of the item associated with <code>key</code> to expire at <code>when</code>.</p>
|
||
<p>This function is identical to <code>reset</code> but takes an <code>Instant</code> instead of
|
||
a <code>Duration</code>.</p>
|
||
<p>The item remains in the queue but the delay is set to expire at <code>when</code>.
|
||
If <code>when</code> is in the past, then the item is immediately made available to
|
||
the caller.</p>
|
||
<h1 id="panics-3" class="section-header"><a href="#panics-3">Panics</a></h1>
|
||
<p>This function panics if <code>when</code> is too far in the future or if <code>key</code> is
|
||
not contained by the queue.</p>
|
||
<h1 id="examples-6" class="section-header"><a href="#examples-6">Examples</a></h1>
|
||
<p>Basic usage</p>
|
||
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::<span class="ident">DelayQueue</span>;
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::{<span class="ident">Duration</span>, <span class="ident">Instant</span>};
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
<span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"foo"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
|
||
|
||
<span class="comment">// "foo" is scheduled to be returned in 5 seconds</span>
|
||
|
||
<span class="ident">delay_queue</span>.<span class="ident">reset_at</span>(<span class="kw-2">&</span><span class="ident">key</span>, <span class="ident">Instant</span>::<span class="ident">now</span>() <span class="op">+</span> <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">10</span>));
|
||
|
||
<span class="comment">// "foo"is now scheduled to be returned in 10 seconds</span></pre></div>
|
||
</div><h4 id='method.reset' class="method"><code id='reset.v'>pub fn <a href='#method.reset' class='fnname'>reset</a>(&mut self, key: &<a class="struct" href="../../tokio_timer/delay_queue/struct.Key.html" title="struct tokio_timer::delay_queue::Key">Key</a>, timeout: <a class="struct" href="https://doc.rust-lang.org/nightly/core/time/struct.Duration.html" title="struct core::time::Duration">Duration</a>)</code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#561-563' title='goto source code'>[src]</a></h4><div class='docblock'><p>Sets the delay of the item associated with <code>key</code> to expire after
|
||
<code>timeout</code>.</p>
|
||
<p>This function is identical to <code>reset_at</code> but takes a <code>Duration</code> instead
|
||
of an <code>Instant</code>.</p>
|
||
<p>The item remains in the queue but the delay is set to expire after
|
||
<code>timeout</code>. If <code>timeout</code> is zero, then the item is immediately made
|
||
available to the caller.</p>
|
||
<h1 id="panics-4" class="section-header"><a href="#panics-4">Panics</a></h1>
|
||
<p>This function panics if <code>timeout</code> is greater than the maximum supported
|
||
duration or if <code>key</code> is not contained by the queue.</p>
|
||
<h1 id="examples-7" class="section-header"><a href="#examples-7">Examples</a></h1>
|
||
<p>Basic usage</p>
|
||
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::<span class="ident">DelayQueue</span>;
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
<span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"foo"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
|
||
|
||
<span class="comment">// "foo" is scheduled to be returned in 5 seconds</span>
|
||
|
||
<span class="ident">delay_queue</span>.<span class="ident">reset</span>(<span class="kw-2">&</span><span class="ident">key</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">10</span>));
|
||
|
||
<span class="comment">// "foo"is now scheduled to be returned in 10 seconds</span></pre></div>
|
||
</div><h4 id='method.clear' class="method"><code id='clear.v'>pub fn <a href='#method.clear' class='fnname'>clear</a>(&mut self)</code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#592-597' title='goto source code'>[src]</a></h4><div class='docblock'><p>Clears the queue, removing all items.</p>
|
||
<p>After calling <code>clear</code>, <a href="#method.poll"><code>poll</code></a> will return <code>Ok(Ready(None))</code>.</p>
|
||
<p>Note that this method has no effect on the allocated capacity.</p>
|
||
<h1 id="examples-8" class="section-header"><a href="#examples-8">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">tokio</span>::<span class="ident">timer</span>::<span class="ident">DelayQueue</span>;
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
|
||
<span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"foo"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
|
||
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">delay_queue</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="ident">delay_queue</span>.<span class="ident">clear</span>();
|
||
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">delay_queue</span>.<span class="ident">is_empty</span>());</pre></div>
|
||
</div><h4 id='method.capacity' class="method"><code id='capacity.v'>pub fn <a href='#method.capacity' class='fnname'>capacity</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#608-610' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of elements the queue can hold without reallocating.</p>
|
||
<h1 id="examples-9" class="section-header"><a href="#examples-9">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">let</span> <span class="ident">delay_queue</span>: <span class="ident">DelayQueue</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">with_capacity</span>(<span class="number">10</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">delay_queue</span>.<span class="ident">capacity</span>(), <span class="number">10</span>);</pre></div>
|
||
</div><h4 id='method.reserve' class="method"><code id='reserve.v'>pub fn <a href='#method.reserve' class='fnname'>reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#639-641' title='goto source code'>[src]</a></h4><div class='docblock'><p>Reserve capacity for at least <code>additional</code> more items to be queued
|
||
without allocating.</p>
|
||
<p><code>reserve</code> does nothing if the queue already has sufficient capacity for
|
||
<code>additional</code> more values. If more capacity is required, a new segment of
|
||
memory will be allocated and all existing values will be copied into it.
|
||
As such, if the queue is already very large, a call to <code>reserve</code> can end
|
||
up being expensive.</p>
|
||
<p>The queue may reserve more than <code>additional</code> extra space in order to
|
||
avoid frequent reallocations.</p>
|
||
<h1 id="panics-5" class="section-header"><a href="#panics-5">Panics</a></h1>
|
||
<p>Panics if the new capacity exceeds the maximum number of entries the
|
||
queue can contain.</p>
|
||
<h1 id="examples-10" class="section-header"><a href="#examples-10">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
<span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"hello"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">10</span>));
|
||
<span class="ident">delay_queue</span>.<span class="ident">reserve</span>(<span class="number">10</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">delay_queue</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">11</span>);</pre></div>
|
||
</div><h4 id='method.is_empty' class="method"><code id='is_empty.v'>pub fn <a href='#method.is_empty' class='fnname'>is_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#659-661' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns <code>true</code> if there are no items in the queue.</p>
|
||
<p>Note that this function returns <code>false</code> even if all items have not yet
|
||
expired and a call to <code>poll</code> will return <code>NotReady</code>.</p>
|
||
<h1 id="examples-11" class="section-header"><a href="#examples-11">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">delay_queue</span> <span class="op">=</span> <span class="ident">DelayQueue</span>::<span class="ident">new</span>();
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">delay_queue</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="ident">delay_queue</span>.<span class="ident">insert</span>(<span class="string">"hello"</span>, <span class="ident">Duration</span>::<span class="ident">from_secs</span>(<span class="number">5</span>));
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">delay_queue</span>.<span class="ident">is_empty</span>());</pre></div>
|
||
</div></div><h2 id='implementations' class='small-section-header'>Trait Implementations<a href='#implementations' class='anchor'></a></h2><div id='implementations-list'><h3 id='impl-Debug' class='impl'><code class='in-band'>impl<T: <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="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#128' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.fmt' class="method hidden"><code id='fmt.v'>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &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><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#128' title='goto source code'>[src]</a></h4><div class='docblock hidden'><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-Stream' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a> for <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a href='#impl-Stream' class='anchor'></a><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#712-731' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item' class="type"><code id='Item.t'>type <a href='../../futures/stream/trait.Stream.html#associatedtype.Item' class="type">Item</a> = <a class="struct" href="../../tokio_timer/delay_queue/struct.Expired.html" title="struct tokio_timer::delay_queue::Expired">Expired</a><T></code></h4><div class='docblock'><p>The type of item this stream will yield on success.</p>
|
||
</div><h4 id='associatedtype.Error' class="type"><code id='Error.t'>type <a href='../../futures/stream/trait.Stream.html#associatedtype.Error' class="type">Error</a> = <a class="struct" href="../../tokio_timer/struct.Error.html" title="struct tokio_timer::Error">Error</a></code></h4><div class='docblock'><p>The type of error this stream may generate.</p>
|
||
</div><h4 id='method.poll' class="method hidden"><code id='poll.v'>fn <a href='../../futures/stream/trait.Stream.html#tymethod.poll' class='fnname'>poll</a>(&mut self) -> <a class="type" href="../../futures/poll/type.Poll.html" title="type futures::poll::Poll">Poll</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>>, <a class="struct" href="../../tokio_timer/struct.Error.html" title="struct tokio_timer::Error">Error</a>></code><a class='srclink' href='../../src/tokio_timer/delay_queue.rs.html#716-730' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Attempt to pull out the next value of this stream, returning <code>None</code> if the stream is finished. <a href="../../futures/stream/trait.Stream.html#tymethod.poll">Read more</a></p>
|
||
</div><h4 id='method.wait' class="method hidden"><code id='wait.v'>fn <a href='../../futures/stream/trait.Stream.html#method.wait' class='fnname'>wait</a>(self) -> <a class="struct" href="../../futures/stream/wait/struct.Wait.html" title="struct futures::stream::wait::Wait">Wait</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#245-249' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator which blocks the current thread until each item of this stream is resolved. <a href="../../futures/stream/trait.Stream.html#method.wait">Read more</a></p>
|
||
</div><h4 id='method.into_future' class="method hidden"><code id='into_future.v'>fn <a href='../../futures/stream/trait.Stream.html#method.into_future' class='fnname'>into_future</a>(self) -> <a class="struct" href="../../futures/stream/future/struct.StreamFuture.html" title="struct futures::stream::future::StreamFuture">StreamFuture</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#292-296' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Converts this stream into a <code>Future</code>. <a href="../../futures/stream/trait.Stream.html#method.into_future">Read more</a></p>
|
||
</div><h4 id='method.map' class="method hidden"><code id='map.v'>fn <a href='../../futures/stream/trait.Stream.html#method.map' class='fnname'>map</a><U, F>(self, f: F) -> <a class="struct" href="../../futures/stream/map/struct.Map.html" title="struct futures::stream::map::Map">Map</a><Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> U, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#317-322' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Converts a stream of type <code>T</code> to a stream of type <code>U</code>. <a href="../../futures/stream/trait.Stream.html#method.map">Read more</a></p>
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</div><h4 id='method.map_err' class="method hidden"><code id='map_err.v'>fn <a href='../../futures/stream/trait.Stream.html#method.map_err' class='fnname'>map_err</a><U, F>(self, f: F) -> <a class="struct" href="../../futures/stream/map_err/struct.MapErr.html" title="struct futures::stream::map_err::MapErr">MapErr</a><Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>) -> U, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#343-348' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Converts a stream of error type <code>T</code> to a stream of error type <code>U</code>. <a href="../../futures/stream/trait.Stream.html#method.map_err">Read more</a></p>
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</div><h4 id='method.filter' class="method hidden"><code id='filter.v'>fn <a href='../../futures/stream/trait.Stream.html#method.filter' class='fnname'>filter</a><F>(self, f: F) -> <a class="struct" href="../../futures/stream/filter/struct.Filter.html" title="struct futures::stream::filter::Filter">Filter</a><Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#373-378' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Filters the values produced by this stream according to the provided predicate. <a href="../../futures/stream/trait.Stream.html#method.filter">Read more</a></p>
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</div><h4 id='method.filter_map' class="method hidden"><code id='filter_map.v'>fn <a href='../../futures/stream/trait.Stream.html#method.filter_map' class='fnname'>filter_map</a><F, B>(self, f: F) -> <a class="struct" href="../../futures/stream/filter_map/struct.FilterMap.html" title="struct futures::stream::filter_map::FilterMap">FilterMap</a><Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><B>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#409-414' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Filters the values produced by this stream while simultaneously mapping them to a different type. <a href="../../futures/stream/trait.Stream.html#method.filter_map">Read more</a></p>
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</div><h4 id='method.then' class="method hidden"><code id='then.v'>fn <a href='../../futures/stream/trait.Stream.html#method.then' class='fnname'>then</a><F, U>(self, f: F) -> <a class="struct" href="../../futures/stream/then/struct.Then.html" title="struct futures::stream::then::Then">Then</a><Self, F, U> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>, Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>) -> U,<br> U: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#448-454' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Chain on a computation for when a value is ready, passing the resulting item to the provided closure <code>f</code>. <a href="../../futures/stream/trait.Stream.html#method.then">Read more</a></p>
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</div><h4 id='method.and_then' class="method hidden"><code id='and_then.v'>fn <a href='../../futures/stream/trait.Stream.html#method.and_then' class='fnname'>and_then</a><F, U>(self, f: F) -> <a class="struct" href="../../futures/stream/and_then/struct.AndThen.html" title="struct futures::stream::and_then::AndThen">AndThen</a><Self, F, U> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> U,<br> U: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a><Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#495-501' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Chain on a computation for when a value is ready, passing the successful results to the provided closure <code>f</code>. <a href="../../futures/stream/trait.Stream.html#method.and_then">Read more</a></p>
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</div><h4 id='method.or_else' class="method hidden"><code id='or_else.v'>fn <a href='../../futures/stream/trait.Stream.html#method.or_else' class='fnname'>or_else</a><F, U>(self, f: F) -> <a class="struct" href="../../futures/stream/or_else/struct.OrElse.html" title="struct futures::stream::or_else::OrElse">OrElse</a><Self, F, U> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>) -> U,<br> U: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a><Item = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#522-528' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Chain on a computation for when an error happens, passing the erroneous result to the provided closure <code>f</code>. <a href="../../futures/stream/trait.Stream.html#method.or_else">Read more</a></p>
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</div><h4 id='method.collect' class="method hidden"><code id='collect.v'>fn <a href='../../futures/stream/trait.Stream.html#method.collect' class='fnname'>collect</a>(self) -> <a class="struct" href="../../futures/stream/collect/struct.Collect.html" title="struct futures::stream::collect::Collect">Collect</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#563-567' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Collect all of the values of this stream into a vector, returning a future representing the result of that computation. <a href="../../futures/stream/trait.Stream.html#method.collect">Read more</a></p>
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</div><h4 id='method.concat2' class="method hidden"><code id='concat2.v'>fn <a href='../../futures/stream/trait.Stream.html#method.concat2' class='fnname'>concat2</a>(self) -> <a class="struct" href="../../futures/stream/concat/struct.Concat2.html" title="struct futures::stream::concat::Concat2">Concat2</a><Self> <span class="where fmt-newline">where<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a> as <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>>,<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>,<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#599-604' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Concatenate all results of a stream into a single extendable destination, returning a future representing the end result. <a href="../../futures/stream/trait.Stream.html#method.concat2">Read more</a></p>
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</div><h4 id='method.concat' class="method hidden"><code id='concat.v'>fn <a href='../../futures/stream/trait.Stream.html#method.concat' class='fnname'>concat</a>(self) -> <a class="struct" href="../../futures/stream/concat/struct.Concat.html" title="struct futures::stream::concat::Concat">Concat</a><Self> <span class="where fmt-newline">where<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a> as <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>>,<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#639-644' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab deprecated'>Deprecated since 0.1.14: <p>please use <code>Stream::concat2</code> instead</p>
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</div></div><div class='docblock hidden'><p>Concatenate all results of a stream into a single extendable destination, returning a future representing the end result. <a href="../../futures/stream/trait.Stream.html#method.concat">Read more</a></p>
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</div><h4 id='method.fold' class="method hidden"><code id='fold.v'>fn <a href='../../futures/stream/trait.Stream.html#method.fold' class='fnname'>fold</a><F, T, Fut>(self, init: T, f: F) -> <a class="struct" href="../../futures/stream/fold/struct.Fold.html" title="struct futures::stream::fold::Fold">Fold</a><Self, F, Fut, T> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(T, Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> Fut,<br> Fut: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a><Item = T>,<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><<Fut as <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>>::<a class="type" href="../../futures/future/trait.IntoFuture.html#associatedtype.Error" title="type futures::future::IntoFuture::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#669-676' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Execute an accumulating computation over a stream, collecting all the values into one final result. <a href="../../futures/stream/trait.Stream.html#method.fold">Read more</a></p>
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</div><h4 id='method.flatten' class="method hidden"><code id='flatten.v'>fn <a href='../../futures/stream/trait.Stream.html#method.flatten' class='fnname'>flatten</a>(self) -> <a class="struct" href="../../futures/stream/flatten/struct.Flatten.html" title="struct futures::stream::flatten::Flatten">Flatten</a><Self> <span class="where fmt-newline">where<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a>,<br> <Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a> as <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a>>::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#711-717' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Flattens a stream of streams into just one continuous stream. <a href="../../futures/stream/trait.Stream.html#method.flatten">Read more</a></p>
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</div><h4 id='method.skip_while' class="method hidden"><code id='skip_while.v'>fn <a href='../../futures/stream/trait.Stream.html#method.skip_while' class='fnname'>skip_while</a><P, R>(self, pred: P) -> <a class="struct" href="../../futures/stream/skip_while/struct.SkipWhile.html" title="struct futures::stream::skip_while::SkipWhile">SkipWhile</a><Self, P, R> <span class="where fmt-newline">where<br> P: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> R,<br> R: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a><Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#726-732' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Skip elements on this stream while the predicate provided resolves to <code>true</code>. <a href="../../futures/stream/trait.Stream.html#method.skip_while">Read more</a></p>
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</div><h4 id='method.take_while' class="method hidden"><code id='take_while.v'>fn <a href='../../futures/stream/trait.Stream.html#method.take_while' class='fnname'>take_while</a><P, R>(self, pred: P) -> <a class="struct" href="../../futures/stream/take_while/struct.TakeWhile.html" title="struct futures::stream::take_while::TakeWhile">TakeWhile</a><Self, P, R> <span class="where fmt-newline">where<br> P: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> R,<br> R: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a><Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#740-746' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Take elements from this stream while the predicate provided resolves to <code>true</code>. <a href="../../futures/stream/trait.Stream.html#method.take_while">Read more</a></p>
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</div><h4 id='method.for_each' class="method hidden"><code id='for_each.v'>fn <a href='../../futures/stream/trait.Stream.html#method.for_each' class='fnname'>for_each</a><F, U>(self, f: F) -> <a class="struct" href="../../futures/stream/for_each/struct.ForEach.html" title="struct futures::stream::for_each::ForEach">ForEach</a><Self, F, U> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>) -> U,<br> U: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a><Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#762-768' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Runs this stream to completion, executing the provided closure for each element on the stream. <a href="../../futures/stream/trait.Stream.html#method.for_each">Read more</a></p>
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</div><h4 id='method.from_err' class="method hidden"><code id='from_err.v'>fn <a href='../../futures/stream/trait.Stream.html#method.from_err' class='fnname'>from_err</a><E>(self) -> <a class="struct" href="../../futures/stream/from_err/struct.FromErr.html" title="struct futures::stream::from_err::FromErr">FromErr</a><Self, E> <span class="where fmt-newline">where<br> E: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#781-785' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Map this stream's error to any error implementing <code>From</code> for this stream's <code>Error</code>, returning a new stream. <a href="../../futures/stream/trait.Stream.html#method.from_err">Read more</a></p>
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</div><h4 id='method.take' class="method hidden"><code id='take.v'>fn <a href='../../futures/stream/trait.Stream.html#method.take' class='fnname'>take</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -> <a class="struct" href="../../futures/stream/take/struct.Take.html" title="struct futures::stream::take::Take">Take</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#797-801' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates a new stream of at most <code>amt</code> items of the underlying stream. <a href="../../futures/stream/trait.Stream.html#method.take">Read more</a></p>
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</div><h4 id='method.skip' class="method hidden"><code id='skip.v'>fn <a href='../../futures/stream/trait.Stream.html#method.skip' class='fnname'>skip</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -> <a class="struct" href="../../futures/stream/skip/struct.Skip.html" title="struct futures::stream::skip::Skip">Skip</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#812-816' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates a new stream which skips <code>amt</code> items of the underlying stream. <a href="../../futures/stream/trait.Stream.html#method.skip">Read more</a></p>
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</div><h4 id='method.fuse' class="method hidden"><code id='fuse.v'>fn <a href='../../futures/stream/trait.Stream.html#method.fuse' class='fnname'>fuse</a>(self) -> <a class="struct" href="../../futures/stream/fuse/struct.Fuse.html" title="struct futures::stream::fuse::Fuse">Fuse</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#833-837' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Fuse a stream such that <code>poll</code> will never again be called once it has finished. <a href="../../futures/stream/trait.Stream.html#method.fuse">Read more</a></p>
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</div><h4 id='method.by_ref' class="method hidden"><code id='by_ref.v'>fn <a href='../../futures/stream/trait.Stream.html#method.by_ref' class='fnname'>by_ref</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>Self</code><a class='srclink' href='../../src/futures/stream/mod.rs.html#858-862' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Borrows a stream, rather than consuming it. <a href="../../futures/stream/trait.Stream.html#method.by_ref">Read more</a></p>
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</div><h4 id='method.catch_unwind' class="method hidden"><code id='catch_unwind.v'>fn <a href='../../futures/stream/trait.Stream.html#method.catch_unwind' class='fnname'>catch_unwind</a>(self) -> <a class="struct" href="../../futures/stream/catch_unwind/struct.CatchUnwind.html" title="struct futures::stream::catch_unwind::CatchUnwind">CatchUnwind</a><Self> <span class="where fmt-newline">where<br> Self: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#898-902' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Catches unwinding panics while polling the stream. <a href="../../futures/stream/trait.Stream.html#method.catch_unwind">Read more</a></p>
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</div><h4 id='method.buffered' class="method hidden"><code id='buffered.v'>fn <a href='../../futures/stream/trait.Stream.html#method.buffered' class='fnname'>buffered</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../futures/stream/buffered/struct.Buffered.html" title="struct futures::stream::buffered::Buffered">Buffered</a><Self> <span class="where fmt-newline">where<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>,<br> <Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a> as <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>>::<a class="type" href="../../futures/future/trait.IntoFuture.html#associatedtype.Error" title="type futures::future::IntoFuture::Error">Error</a> == Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#918-923' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>An adaptor for creating a buffered list of pending futures. <a href="../../futures/stream/trait.Stream.html#method.buffered">Read more</a></p>
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</div><h4 id='method.buffer_unordered' class="method hidden"><code id='buffer_unordered.v'>fn <a href='../../futures/stream/trait.Stream.html#method.buffer_unordered' class='fnname'>buffer_unordered</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../futures/stream/buffer_unordered/struct.BufferUnordered.html" title="struct futures::stream::buffer_unordered::BufferUnordered">BufferUnordered</a><Self> <span class="where fmt-newline">where<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>: <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>,<br> <Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a> as <a class="trait" href="../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>>::<a class="type" href="../../futures/future/trait.IntoFuture.html#associatedtype.Error" title="type futures::future::IntoFuture::Error">Error</a> == Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#939-944' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>An adaptor for creating a buffered list of pending futures (unordered). <a href="../../futures/stream/trait.Stream.html#method.buffer_unordered">Read more</a></p>
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</div><h4 id='method.merge' class="method hidden"><code id='merge.v'>fn <a href='../../futures/stream/trait.Stream.html#method.merge' class='fnname'>merge</a><S>(self, other: S) -> <a class="struct" href="../../futures/stream/merge/struct.Merge.html" title="struct futures::stream::merge::Merge">Merge</a><Self, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a><Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#953-958' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab deprecated'>Deprecated: <p>functionality provided by <code>select</code> now</p>
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</div></div><div class='docblock hidden'><p>An adapter for merging the output of two streams. <a href="../../futures/stream/trait.Stream.html#method.merge">Read more</a></p>
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</div><h4 id='method.zip' class="method hidden"><code id='zip.v'>fn <a href='../../futures/stream/trait.Stream.html#method.zip' class='fnname'>zip</a><S>(self, other: S) -> <a class="struct" href="../../futures/stream/zip/struct.Zip.html" title="struct futures::stream::zip::Zip">Zip</a><Self, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a><Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#965-970' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>An adapter for zipping two streams together. <a href="../../futures/stream/trait.Stream.html#method.zip">Read more</a></p>
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</div><h4 id='method.chain' class="method hidden"><code id='chain.v'>fn <a href='../../futures/stream/trait.Stream.html#method.chain' class='fnname'>chain</a><S>(self, other: S) -> <a class="struct" href="../../futures/stream/chain/struct.Chain.html" title="struct futures::stream::chain::Chain">Chain</a><Self, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a><Item = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>, Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#991-996' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Adapter for chaining two stream. <a href="../../futures/stream/trait.Stream.html#method.chain">Read more</a></p>
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</div><h4 id='method.peekable' class="method hidden"><code id='peekable.v'>fn <a href='../../futures/stream/trait.Stream.html#method.peekable' class='fnname'>peekable</a>(self) -> <a class="struct" href="../../futures/stream/peek/struct.Peekable.html" title="struct futures::stream::peek::Peekable">Peekable</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1001-1005' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates a new stream which exposes a <code>peek</code> method. <a href="../../futures/stream/trait.Stream.html#method.peekable">Read more</a></p>
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</div><h4 id='method.chunks' class="method hidden"><code id='chunks.v'>fn <a href='../../futures/stream/trait.Stream.html#method.chunks' class='fnname'>chunks</a>(self, capacity: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../futures/stream/chunks/struct.Chunks.html" title="struct futures::stream::chunks::Chunks">Chunks</a><Self></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1028-1032' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>An adaptor for chunking up items of the stream inside a vector. <a href="../../futures/stream/trait.Stream.html#method.chunks">Read more</a></p>
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</div><h4 id='method.select' class="method hidden"><code id='select.v'>fn <a href='../../futures/stream/trait.Stream.html#method.select' class='fnname'>select</a><S>(self, other: S) -> <a class="struct" href="../../futures/stream/select/struct.Select.html" title="struct futures::stream::select::Select">Select</a><Self, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="../../futures/stream/trait.Stream.html" title="trait futures::stream::Stream">Stream</a><Item = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>, Error = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1045-1050' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates a stream that selects the next element from either this stream or the provided one, whichever is ready first. <a href="../../futures/stream/trait.Stream.html#method.select">Read more</a></p>
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</div><h4 id='method.forward' class="method hidden"><code id='forward.v'>fn <a href='../../futures/stream/trait.Stream.html#method.forward' class='fnname'>forward</a><S>(self, sink: S) -> <a class="struct" href="../../futures/stream/forward/struct.Forward.html" title="struct futures::stream::forward::Forward">Forward</a><Self, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="../../futures/sink/trait.Sink.html" title="trait futures::sink::Sink">Sink</a><SinkItem = Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>>,<br> Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><<S as <a class="trait" href="../../futures/sink/trait.Sink.html" title="trait futures::sink::Sink">Sink</a>>::<a class="type" href="../../futures/sink/trait.Sink.html#associatedtype.SinkError" title="type futures::sink::Sink::SinkError">SinkError</a>>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1066-1072' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>A future that completes after the given stream has been fully processed into the sink, including flushing. <a href="../../futures/stream/trait.Stream.html#method.forward">Read more</a></p>
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</div><h4 id='method.split' class="method hidden"><code id='split.v'>fn <a href='../../futures/stream/trait.Stream.html#method.split' class='fnname'>split</a>(self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../futures/stream/split/struct.SplitSink.html" title="struct futures::stream::split::SplitSink">SplitSink</a><Self>, <a class="struct" href="../../futures/stream/split/struct.SplitStream.html" title="struct futures::stream::split::SplitStream">SplitStream</a><Self><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a> <span class="where fmt-newline">where<br> Self: <a class="trait" href="../../futures/sink/trait.Sink.html" title="trait futures::sink::Sink">Sink</a>, </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1084-1088' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Splits this <code>Stream + Sink</code> object into separate <code>Stream</code> and <code>Sink</code> objects. <a href="../../futures/stream/trait.Stream.html#method.split">Read more</a></p>
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</div><h4 id='method.inspect' class="method hidden"><code id='inspect.v'>fn <a href='../../futures/stream/trait.Stream.html#method.inspect' class='fnname'>inspect</a><F>(self, f: F) -> <a class="struct" href="../../futures/stream/inspect/struct.Inspect.html" title="struct futures::stream::inspect::Inspect">Inspect</a><Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Item" title="type futures::stream::Stream::Item">Item</a>), </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1095-1100' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Do something with each item of this stream, afterwards passing it on. <a href="../../futures/stream/trait.Stream.html#method.inspect">Read more</a></p>
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</div><h4 id='method.inspect_err' class="method hidden"><code id='inspect_err.v'>fn <a href='../../futures/stream/trait.Stream.html#method.inspect_err' class='fnname'>inspect_err</a><F>(self, f: F) -> <a class="struct" href="../../futures/stream/inspect_err/struct.InspectErr.html" title="struct futures::stream::inspect_err::InspectErr">InspectErr</a><Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&Self::<a class="type" href="../../futures/stream/trait.Stream.html#associatedtype.Error" title="type futures::stream::Stream::Error">Error</a>), </span></code><a class='srclink' href='../../src/futures/stream/mod.rs.html#1107-1112' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Do something with the error of this stream, afterwards passing it on. <a href="../../futures/stream/trait.Stream.html#method.inspect_err">Read more</a></p>
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</div></div></div><h2 id='synthetic-implementations' class='small-section-header'>Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a></h2><div id='synthetic-implementations-list'><h3 id='impl-RefUnwindSafe' class='impl'><code class='in-band'>impl<T> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a href='#impl-RefUnwindSafe' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Send' class='impl'><code class='in-band'>impl<T> <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="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>, </span></code><a href='#impl-Send' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl<T> <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="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>, </span></code><a href='#impl-Sync' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Unpin' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>, </span></code><a href='#impl-Unpin' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-UnwindSafe' class='impl'><code class='in-band'>impl<T> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../tokio_timer/delay_queue/struct.DelayQueue.html" title="struct tokio_timer::delay_queue::DelayQueue">DelayQueue</a><T></code><a href='#impl-UnwindSafe' class='anchor'></a></h3><div class='impl-items'></div></div><h2 id='blanket-implementations' class='small-section-header'>Blanket Implementations<a href='#blanket-implementations' class='anchor'></a></h2><div id='blanket-implementations-list'><h3 id='impl-Any' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#108-112' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.type_id' class="method hidden"><code id='type_id.v'>fn <a href='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#109-111' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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</div></div><h3 id='impl-Borrow%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Borrow%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-217' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow' class="method hidden"><code id='borrow.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-216' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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</div></div><h3 id='impl-BorrowMut%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-BorrowMut%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220-224' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow_mut' class="method hidden"><code id='borrow_mut.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221-223' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
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</div></div><h3 id='impl-From%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href='#impl-From%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#564-568' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#565-567' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-Into%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href='#impl-Into%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#553-560' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.into' class="method hidden"><code id='into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> U</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#557-559' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryFrom%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href='#impl-TryFrom%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#601-610' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_from' class="method hidden"><code id='try_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#607-609' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryInto%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href='#impl-TryInto%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587-596' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-2' class="type"><code id='Error.t-2'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_into' class="method hidden"><code id='try_into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#593-595' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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