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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 `Connection` struct in crate `h2`."><meta name="keywords" content="rust, rustlang, rust-lang, Connection"><title>h2::server::Connection - 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="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><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='../../h2/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Connection</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.abrupt_shutdown">abrupt_shutdown</a><a href="#method.accept">accept</a><a href="#method.graceful_shutdown">graceful_shutdown</a><a href="#method.max_concurrent_recv_streams">max_concurrent_recv_streams</a><a href="#method.max_concurrent_send_streams">max_concurrent_send_streams</a><a href="#method.ping_pong">ping_pong</a><a href="#method.poll_closed">poll_closed</a><a href="#method.set_initial_window_size">set_initial_window_size</a><a href="#method.set_target_window_size">set_target_window_size</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</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-Instrument">Instrument</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">h2</a>::<wbr><a href="index.html">server</a></p><div id="sidebar-vars" data-name="Connection" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></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><button type="button" class="help-button">?</button>
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<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="in-band">Struct <a href="../index.html">h2</a>::<wbr><a href="index.html">server</a>::<wbr><a class="struct" href="">Connection</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/h2/server.rs.html#194-196" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct"><span class="docblock attributes top-attr">#[must_use = "streams do nothing unless polled"]</span>pub struct Connection<T, B: <a class="trait" href="../../bytes/buf/buf_impl/trait.Buf.html" title="trait bytes::buf::buf_impl::Buf">Buf</a>> { /* fields omitted */ }</pre></div><div class="docblock"><p>Accepts inbound HTTP/2.0 streams on a connection.</p>
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<p>A <code>Connection</code> is backed by an I/O resource (usually a TCP socket) and
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implements the HTTP/2.0 server logic for that connection. It is responsible
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for receiving inbound streams initiated by the client as well as driving the
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internal state forward.</p>
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<p><code>Connection</code> values are created by calling <a href="struct.Connection.html#method.handshake"><code>handshake</code></a>. Once a
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<code>Connection</code> value is obtained, the caller must call <a href="struct.Connection.html#method.poll"><code>poll</code></a> or
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<a href="struct.Connection.html#method.poll_close"><code>poll_close</code></a> in order to drive the internal connection state forward.</p>
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<p>See <a href="index.html">module level</a> documentation for more details</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="kw-2">mut</span> <span class="ident">server</span> <span class="op">=</span> <span class="ident">server</span>::<span class="ident">handshake</span>(<span class="ident">my_io</span>).<span class="kw">await</span>.<span class="ident">unwrap</span>();
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<span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">request</span>) <span class="op">=</span> <span class="ident">server</span>.<span class="ident">accept</span>().<span class="kw">await</span> {
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<span class="kw">let</span> (<span class="ident">request</span>, <span class="ident">respond</span>) <span class="op">=</span> <span class="ident">request</span>.<span class="ident">unwrap</span>();
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<span class="comment">// Process the request and send the response back to the client</span>
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<span class="comment">// using `respond`.</span>
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}</pre></div>
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</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl<T, B> <a class="struct" href="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../tokio/io/async_read/trait.AsyncRead.html" title="trait tokio::io::async_read::AsyncRead">AsyncRead</a> + <a class="trait" href="../../tokio/io/async_write/trait.AsyncWrite.html" title="trait tokio::io::async_write::AsyncWrite">AsyncWrite</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,<br> B: <a class="trait" href="../../bytes/buf/buf_impl/trait.Buf.html" title="trait bytes::buf::buf_impl::Buf">Buf</a> + 'static, </span></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/h2/server.rs.html#359-560" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.accept" class="method"><code>pub async fn <a href="#method.accept" class="fnname">accept</a>(<br> &mut self<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../http/request/struct.Request.html" title="struct http::request::Request">Request</a><<a class="struct" href="../../h2/struct.RecvStream.html" title="struct h2::RecvStream">RecvStream</a>>, <a class="struct" href="../../h2/server/struct.SendResponse.html" title="struct h2::server::SendResponse">SendResponse</a><B><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>, <a class="struct" href="../../h2/struct.Error.html" title="struct h2::Error">Error</a>>></code><a class="srclink" href="../../src/h2/server.rs.html#397-401" title="goto source code">[src]</a></h4><div class="docblock"><p>Accept the next incoming request on this connection.</p>
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</div><h4 id="method.set_target_window_size" class="method"><code>pub fn <a href="#method.set_target_window_size" class="fnname">set_target_window_size</a>(&mut self, size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>)</code><a class="srclink" href="../../src/h2/server.rs.html#447-450" title="goto source code">[src]</a></h4><div class="docblock"><p>Sets the target window size for the whole connection.</p>
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<p>If <code>size</code> is greater than the current value, then a <code>WINDOW_UPDATE</code>
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frame will be immediately sent to the remote, increasing the connection
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level window by <code>size - current_value</code>.</p>
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<p>If <code>size</code> is less than the current value, nothing will happen
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immediately. However, as window capacity is released by
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<a href="../struct.FlowControl.html"><code>FlowControl</code></a> instances, no <code>WINDOW_UPDATE</code> frames will be sent
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out until the number of "in flight" bytes drops below <code>size</code>.</p>
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<p>The default value is 65,535.</p>
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<p>See <a href="../struct.FlowControl.html"><code>FlowControl</code></a> documentation for more details.</p>
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</div><h4 id="method.set_initial_window_size" class="method"><code>pub fn <a href="#method.set_initial_window_size" class="fnname">set_initial_window_size</a>(&mut self, size: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="../../h2/struct.Error.html" title="struct h2::Error">Error</a>></code><a class="srclink" href="../../src/h2/server.rs.html#465-469" title="goto source code">[src]</a></h4><div class="docblock"><p>Set a new <code>INITIAL_WINDOW_SIZE</code> setting (in octets) for stream-level
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flow control for received data.</p>
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<p>The <code>SETTINGS</code> will be sent to the remote, and only applied once the
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remote acknowledges the change.</p>
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<p>This can be used to increase or decrease the window size for existing
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streams.</p>
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<h1 id="errors" class="section-header"><a href="#errors">Errors</a></h1>
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<p>Returns an error if a previous call is still pending acknowledgement
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from the remote endpoint.</p>
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</div><h4 id="method.poll_closed" class="method"><code>pub fn <a href="#method.poll_closed" class="fnname">poll_closed</a>(&mut self, cx: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/task/wake/struct.Context.html" title="struct core::task::wake::Context">Context</a><'_>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/task/poll/enum.Poll.html" title="enum core::task::poll::Poll">Poll</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="../../h2/struct.Error.html" title="struct h2::Error">Error</a>>></code><a class="srclink" href="../../src/h2/server.rs.html#484-486" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns <code>Ready</code> when the underlying connection has closed.</p>
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<p>If any new inbound streams are received during a call to <code>poll_closed</code>,
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they will be queued and returned on the next call to <a href="struct.Connection.html#method.poll_accept"><code>poll_accept</code></a>.</p>
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<p>This function will advance the internal connection state, driving
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progress on all the other handles (e.g. <a href="../struct.RecvStream.html"><code>RecvStream</code></a> and <a href="../struct.SendStream.html"><code>SendStream</code></a>).</p>
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<p>See <a href="index.html#managing-the-connection">here</a> for more details.</p>
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</div><h4 id="method.abrupt_shutdown" class="method"><code>pub fn <a href="#method.abrupt_shutdown" class="fnname">abrupt_shutdown</a>(&mut self, reason: <a class="struct" href="../../h2/struct.Reason.html" title="struct h2::Reason">Reason</a>)</code><a class="srclink" href="../../src/h2/server.rs.html#506-508" title="goto source code">[src]</a></h4><div class="docblock"><p>Sets the connection to a GOAWAY state.</p>
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<p>Does not terminate the connection. Must continue being polled to close
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connection.</p>
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<p>After flushing the GOAWAY frame, the connection is closed. Any
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outstanding streams do not prevent the connection from closing. This
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should usually be reserved for shutting down when something bad
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external to <code>h2</code> has happened, and open streams cannot be properly
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handled.</p>
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<p>For graceful shutdowns, see <a href="../../h2/server/struct.Connection.html#method.graceful_shutdown"><code>graceful_shutdown</code></a>.</p>
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</div><h4 id="method.graceful_shutdown" class="method"><code>pub fn <a href="#method.graceful_shutdown" class="fnname">graceful_shutdown</a>(&mut self)</code><a class="srclink" href="../../src/h2/server.rs.html#520-522" title="goto source code">[src]</a></h4><div class="docblock"><p>Starts a <a href="http://httpwg.org/specs/rfc7540.html#GOAWAY">graceful shutdown</a> process.</p>
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<p>Must continue being polled to close connection.</p>
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<p>It's possible to receive more requests after calling this method, since
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they might have been in-flight from the client already. After about
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1 RTT, no new requests should be accepted. Once all active streams
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have completed, the connection is closed.</p>
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</div><h4 id="method.ping_pong" class="method"><code>pub fn <a href="#method.ping_pong" class="fnname">ping_pong</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../h2/struct.PingPong.html" title="struct h2::PingPong">PingPong</a>></code><a class="srclink" href="../../src/h2/server.rs.html#529-531" title="goto source code">[src]</a></h4><div class="docblock"><p>Takes a <code>PingPong</code> instance from the connection.</p>
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<h1 id="note" class="section-header"><a href="#note">Note</a></h1>
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<p>This may only be called once. Calling multiple times will return <code>None</code>.</p>
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</div><h4 id="method.max_concurrent_send_streams" class="method"><code>pub fn <a href="#method.max_concurrent_send_streams" class="fnname">max_concurrent_send_streams</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class="srclink" href="../../src/h2/server.rs.html#542-544" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the maximum number of concurrent streams that may be initiated
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by the server on this connection.</p>
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<p>This limit is configured by the client peer by sending the
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<a href="https://tools.ietf.org/html/rfc7540#section-5.1.2"><code>SETTINGS_MAX_CONCURRENT_STREAMS</code> parameter</a> in a <code>SETTINGS</code> frame.
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This method returns the currently acknowledged value recieved from the
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remote.</p>
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</div><h4 id="method.max_concurrent_recv_streams" class="method"><code>pub fn <a href="#method.max_concurrent_recv_streams" class="fnname">max_concurrent_recv_streams</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class="srclink" href="../../src/h2/server.rs.html#557-559" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the maximum number of concurrent streams that may be initiated
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by the client on this connection.</p>
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<p>This returns the value of the <a href="https://tools.ietf.org/html/rfc7540#section-5.1.2"><code>SETTINGS_MAX_CONCURRENT_STREAMS</code>
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parameter</a> sent in a <code>SETTINGS</code> frame that has been
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acknowledged by the remote peer. The value to be sent is configured by
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the <a href="../struct.Builder.html#method.max_concurrent_streams"><code>Builder::max_concurrent_streams</code></a> method before handshaking
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with the remote peer.</p>
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</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Debug" class="impl"><code class="in-band">impl<T, B> <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="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br> B: <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="../../bytes/buf/buf_impl/trait.Buf.html" title="trait bytes::buf::buf_impl::Buf">Buf</a>, </span></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/h2/server.rs.html#575-585" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, fmt: &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/h2/server.rs.html#580-584" 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>
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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, B> !<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="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B></code><a href="#impl-RefUnwindSafe" class="anchor"></a><a class="srclink" href="../../src/h2/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">impl<T, B> <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="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B> <span class="where fmt-newline">where<br> B: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<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><a class="srclink" href="../../src/h2/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl<T, B> <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="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B> <span class="where fmt-newline">where<br> B: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<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><a class="srclink" href="../../src/h2/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<T, B> <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="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B> <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><a class="srclink" href="../../src/h2/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<T, B> !<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="../../h2/server/struct.Connection.html" title="struct h2::server::Connection">Connection</a><T, B></code><a href="#impl-UnwindSafe" class="anchor"></a><a class="srclink" href="../../src/h2/lib.rs.html#1" title="goto source code">[src]</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#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub 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#132" 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#207-211" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub 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#208" 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#214-218" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub 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#215" 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#545-549" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub 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#546" 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-Instrument" class="impl"><code class="in-band">impl<T> <a class="trait" href="../../tracing/instrument/trait.Instrument.html" title="trait tracing::instrument::Instrument">Instrument</a> for T</code><a href="#impl-Instrument" class="anchor"></a><a class="srclink" href="../../src/tracing/instrument.rs.html#155" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.instrument" class="method hidden"><code>pub fn <a href="../../tracing/instrument/trait.Instrument.html#method.instrument" class="fnname">instrument</a>(self, span: <a class="struct" href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span">Span</a>) -> <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self></code><a class="srclink" href="../../src/tracing/instrument.rs.html#38" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Instruments this type with the provided <code>Span</code>, returning an
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||
<code>Instrumented</code> wrapper. <a href="../../tracing/instrument/trait.Instrument.html#method.instrument">Read more</a></p>
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</div><h4 id="method.in_current_span" class="method hidden"><code>pub fn <a href="../../tracing/instrument/trait.Instrument.html#method.in_current_span" class="fnname">in_current_span</a>(self) -> <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self></code><a class="srclink" href="../../src/tracing/instrument.rs.html#74" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Instruments this type with the <a href="../struct.Span.html#method.current">current</a> <code>Span</code>, returning an
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||
<code>Instrumented</code> wrapper. <a href="../../tracing/instrument/trait.Instrument.html#method.in_current_span">Read more</a></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#534-541" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub 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#538" 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#582-591" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>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>pub 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#588" 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#568-577" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>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>pub 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#574" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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