<!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="Source to the Rust file `/home/travis/.cargo/registry/src/github.com-1ecc6299db9ec823/solicit-0.4.4/src/http/server.rs`."> <meta name="keywords" content="rust, rustlang, rust-lang"> <title>server.rs.html -- source</title> <link rel="stylesheet" type="text/css" href="../../../rustdoc.css"> <link rel="stylesheet" type="text/css" href="../../../main.css"> </head> <body class="rustdoc"> <!--[if lte IE 8]> <div class="warning"> This old browser is unsupported and will most likely display funky things. </div> <![endif]--> <nav class="sidebar"> </nav> <nav class="sub"> <form class="search-form js-only"> <div class="search-container"> <input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"> </div> </form> </nav> <section id='main' class="content source"><pre class="line-numbers"><span id="1"> 1</span> <span id="2"> 2</span> <span id="3"> 3</span> <span id="4"> 4</span> <span id="5"> 5</span> <span id="6"> 6</span> <span id="7"> 7</span> <span id="8"> 8</span> <span id="9"> 9</span> <span id="10"> 10</span> <span id="11"> 11</span> <span id="12"> 12</span> <span id="13"> 13</span> <span id="14"> 14</span> <span id="15"> 15</span> <span id="16"> 16</span> <span id="17"> 17</span> <span id="18"> 18</span> <span id="19"> 19</span> <span id="20"> 20</span> <span id="21"> 21</span> <span id="22"> 22</span> <span id="23"> 23</span> <span id="24"> 24</span> <span id="25"> 25</span> <span id="26"> 26</span> <span id="27"> 27</span> <span id="28"> 28</span> <span id="29"> 29</span> <span id="30"> 30</span> <span id="31"> 31</span> <span id="32"> 32</span> <span id="33"> 33</span> <span id="34"> 34</span> <span id="35"> 35</span> <span id="36"> 36</span> <span id="37"> 37</span> <span 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The module contains a number of reusable components for implementing the server side of an</span> <span class='doccomment'>//! HTTP/2 connection.</span> <span class='kw'>use</span> <span class='ident'>http</span>::{ <span class='ident'>StreamId</span>, <span class='ident'>Header</span>, <span class='ident'>HttpResult</span>, <span class='ident'>HttpScheme</span>, }; <span class='kw'>use</span> <span class='ident'>http</span>::<span class='ident'>frame</span>::<span class='ident'>SettingsFrame</span>; <span class='kw'>use</span> <span class='ident'>http</span>::<span class='ident'>connection</span>::{ <span class='ident'>SendFrame</span>, <span class='ident'>ReceiveFrame</span>, <span class='ident'>HttpConnection</span>, <span class='ident'>EndStream</span>, <span class='ident'>SendStatus</span>, }; <span class='kw'>use</span> <span class='ident'>http</span>::<span class='ident'>session</span>::{ <span class='ident'>Session</span>, <span class='ident'>SessionState</span>, <span class='ident'>Stream</span>, <span class='ident'>DefaultStream</span>, <span class='ident'>DefaultSessionState</span>, }; <span class='kw'>use</span> <span class='ident'>http</span>::<span class='ident'>priority</span>::<span class='ident'>SimplePrioritizer</span>; <span class='doccomment'>/// An implementation of the `Session` trait for a server-side HTTP/2 connection.</span> <span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>ServerSession</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>State</span><span class='op'>></span> <span class='kw'>where</span> <span class='ident'>State</span>: <span class='ident'>SessionState</span> <span class='op'>+</span> <span class='lifetime'>'a</span> { <span class='ident'>state</span>: <span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='kw-2'>mut</span> <span class='ident'>State</span>, } <span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>State</span><span class='op'>></span> <span class='ident'>ServerSession</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>State</span><span class='op'>></span> <span class='kw'>where</span> <span class='ident'>State</span>: <span class='ident'>SessionState</span> <span class='op'>+</span> <span class='lifetime'>'a</span> { <span class='attribute'>#[<span class='ident'>inline</span>]</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>state</span>: <span class='kw-2'>&</span><span class='lifetime'>'a</span> <span class='kw-2'>mut</span> <span class='ident'>State</span>) <span class='op'>-></span> <span class='ident'>ServerSession</span><span class='op'><</span><span class='ident'>State</span><span class='op'>></span> { <span class='ident'>ServerSession</span> { <span class='ident'>state</span>: <span class='ident'>state</span>, } } } <span class='kw'>impl</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>State</span><span class='op'>></span> <span class='ident'>Session</span> <span class='kw'>for</span> <span class='ident'>ServerSession</span><span class='op'><</span><span class='lifetime'>'a</span>, <span class='ident'>State</span><span class='op'>></span> <span class='kw'>where</span> <span class='ident'>State</span>: <span class='ident'>SessionState</span> <span class='op'>+</span> <span class='lifetime'>'a</span> { <span class='kw'>fn</span> <span class='ident'>new_data_chunk</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>stream_id</span>: <span class='ident'>StreamId</span>, <span class='ident'>data</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) { <span class='macro'>debug</span><span class='macro'>!</span>(<span class='string'>"Data chunk for stream {}"</span>, <span class='ident'>stream_id</span>); <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>stream</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>state</span>.<span class='ident'>get_stream_mut</span>(<span class='ident'>stream_id</span>) { <span class='prelude-val'>None</span> <span class='op'>=></span> { <span class='macro'>debug</span><span class='macro'>!</span>(<span class='string'>"Received a frame for an unknown stream!"</span>); <span class='kw'>return</span>; }, <span class='prelude-val'>Some</span>(<span class='ident'>stream</span>) <span class='op'>=></span> <span class='ident'>stream</span>, }; <span class='comment'>// Now let the stream handle the data chunk</span> <span class='ident'>stream</span>.<span class='ident'>new_data_chunk</span>(<span class='ident'>data</span>); } <span class='kw'>fn</span> <span class='ident'>new_headers</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>stream_id</span>: <span class='ident'>StreamId</span>, <span class='ident'>headers</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>Header</span><span class='op'>></span>) { <span class='macro'>debug</span><span class='macro'>!</span>(<span class='string'>"Headers for stream {}"</span>, <span class='ident'>stream_id</span>); <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>state</span>.<span class='ident'>get_stream_mut</span>(<span class='ident'>stream_id</span>) { <span class='prelude-val'>Some</span>(<span class='ident'>stream</span>) <span class='op'>=></span> { <span class='comment'>// This'd correspond to having received trailers...</span> <span class='ident'>stream</span>.<span class='ident'>set_headers</span>(<span class='ident'>headers</span>); <span class='kw'>return</span>; }, <span class='prelude-val'>None</span> <span class='op'>=></span> {}, }; <span class='comment'>// New stream initiated by the client</span> <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>stream</span>: <span class='ident'>State</span>::<span class='ident'>Stream</span> <span class='op'>=</span> <span class='ident'>Stream</span>::<span class='ident'>new</span>(<span class='ident'>stream_id</span>); <span class='ident'>stream</span>.<span class='ident'>set_headers</span>(<span class='ident'>headers</span>); <span class='self'>self</span>.<span class='ident'>state</span>.<span class='ident'>insert_stream</span>(<span class='ident'>stream</span>); } <span class='kw'>fn</span> <span class='ident'>end_of_stream</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>stream_id</span>: <span class='ident'>StreamId</span>) { <span class='macro'>debug</span><span class='macro'>!</span>(<span class='string'>"End of stream {}"</span>, <span class='ident'>stream_id</span>); <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>stream</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>state</span>.<span class='ident'>get_stream_mut</span>(<span class='ident'>stream_id</span>) { <span class='prelude-val'>None</span> <span class='op'>=></span> { <span class='macro'>debug</span><span class='macro'>!</span>(<span class='string'>"Received a frame for an unknown stream!"</span>); <span class='kw'>return</span>; }, <span class='prelude-val'>Some</span>(<span class='ident'>stream</span>) <span class='op'>=></span> <span class='ident'>stream</span>, }; <span class='ident'>stream</span>.<span class='ident'>close_remote</span>() } } <span class='doccomment'>/// The struct provides a more convenient API for server-related functionality of an HTTP/2</span> <span class='doccomment'>/// connection, such as sending a response back to the client.</span> <span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>ServerConnection</span><span class='op'><</span><span class='ident'>S</span>, <span class='ident'>R</span>, <span class='ident'>State</span><span class='op'>=</span><span class='ident'>DefaultSessionState</span><span class='op'><</span><span class='ident'>DefaultStream</span><span class='op'>>></span> <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>SendFrame</span>, <span class='ident'>R</span>: <span class='ident'>ReceiveFrame</span>, <span class='ident'>State</span>: <span class='ident'>SessionState</span> { <span class='doccomment'>/// The underlying `HttpConnection` that will be used for any HTTP/2</span> <span class='doccomment'>/// communication.</span> <span class='ident'>conn</span>: <span class='ident'>HttpConnection</span><span class='op'><</span><span class='ident'>S</span>, <span class='ident'>R</span><span class='op'>></span>, <span class='doccomment'>/// The state of the session associated to this client connection. Maintains the status of the</span> <span class='doccomment'>/// connection streams.</span> <span class='kw'>pub</span> <span class='ident'>state</span>: <span class='ident'>State</span>, } <span class='kw'>impl</span><span class='op'><</span><span class='ident'>S</span>, <span class='ident'>R</span>, <span class='ident'>State</span><span class='op'>></span> <span class='ident'>ServerConnection</span><span class='op'><</span><span class='ident'>S</span>, <span class='ident'>R</span>, <span class='ident'>State</span><span class='op'>></span> <span class='kw'>where</span> <span class='ident'>S</span>: <span class='ident'>SendFrame</span>, <span class='ident'>R</span>: <span class='ident'>ReceiveFrame</span>, <span class='ident'>State</span>: <span class='ident'>SessionState</span> { <span class='doccomment'>/// Creates a new `ServerConnection` that will use the given `HttpConnection` for its</span> <span class='doccomment'>/// underlying HTTP/2 communication.</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>with_connection</span>(<span class='ident'>conn</span>: <span class='ident'>HttpConnection</span><span class='op'><</span><span class='ident'>S</span>, <span class='ident'>R</span><span class='op'>></span>, <span class='ident'>state</span>: <span class='ident'>State</span>) <span class='op'>-></span> <span class='ident'>ServerConnection</span><span class='op'><</span><span class='ident'>S</span>, <span class='ident'>R</span>, <span class='ident'>State</span><span class='op'>></span> { <span class='ident'>ServerConnection</span> { <span class='ident'>conn</span>: <span class='ident'>conn</span>, <span class='ident'>state</span>: <span class='ident'>state</span>, } } <span class='doccomment'>/// Returns the scheme of the underlying `HttpConnection`.</span> <span class='attribute'>#[<span class='ident'>inline</span>]</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>scheme</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>HttpScheme</span> { <span class='self'>self</span>.<span class='ident'>conn</span>.<span class='ident'>scheme</span> } <span class='doccomment'>/// Initializes the `ServerConnection` by sending the server's settings and processing the</span> <span class='doccomment'>/// client's.</span> <span class='doccomment'>/// If the client does not provide a settings frame, returns an error.</span> <span class='doccomment'>///</span> <span class='doccomment'>/// TODO This method should eventually be split into two.</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>init</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>HttpResult</span><span class='op'><</span>()<span class='op'>></span> { <span class='comment'>// TODO: `HttpConnection` should provide a better API for sending settings.</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>conn</span>.<span class='ident'>sender</span>.<span class='ident'>send_frame</span>(<span class='ident'>SettingsFrame</span>::<span class='ident'>new</span>())); <span class='macro'>try</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>read_preface</span>()); <span class='prelude-val'>Ok</span>(()) } <span class='doccomment'>/// Reads and handles the settings frame of the client preface. If the settings frame is not</span> <span class='doccomment'>/// the next frame received on the underlying connection, returns an error.</span> <span class='kw'>fn</span> <span class='ident'>read_preface</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>HttpResult</span><span class='op'><</span>()<span class='op'>></span> { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>state</span>); <span class='self'>self</span>.<span class='ident'>conn</span>.<span class='ident'>expect_settings</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>session</span>) } <span class='doccomment'>/// Fully handles the next incoming frame. Events are passed on to the internal `session`</span> <span class='doccomment'>/// instance.</span> <span class='attribute'>#[<span class='ident'>inline</span>]</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>handle_next_frame</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>HttpResult</span><span class='op'><</span>()<span class='op'>></span> { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>state</span>); <span class='self'>self</span>.<span class='ident'>conn</span>.<span class='ident'>handle_next_frame</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>session</span>) } <span class='doccomment'>/// Starts a response on the stream with the given ID by sending the given headers.</span> <span class='doccomment'>///</span> <span class='doccomment'>/// The body of the response is assumed to be provided by the `Stream` instance stored within</span> <span class='doccomment'>/// the connection's state. (The body does not have to be ready when this method is called, as</span> <span class='doccomment'>/// long as the `Stream` instance knows how to provide it to the connection later on.)</span> <span class='attribute'>#[<span class='ident'>inline</span>]</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>start_response</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>headers</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>Header</span><span class='op'>></span>, <span class='ident'>stream_id</span>: <span class='ident'>StreamId</span>, <span class='ident'>end_stream</span>: <span class='ident'>EndStream</span>) <span class='op'>-></span> <span class='ident'>HttpResult</span><span class='op'><</span>()<span class='op'>></span> { <span class='self'>self</span>.<span class='ident'>conn</span>.<span class='ident'>send_headers</span>(<span class='ident'>headers</span>, <span class='ident'>stream_id</span>, <span class='ident'>end_stream</span>) } <span class='doccomment'>/// Queues a new DATA frame onto the underlying `SendFrame`.</span> <span class='doccomment'>///</span> <span class='doccomment'>/// Currently, no prioritization of streams is taken into account and which stream's data is</span> <span class='doccomment'>/// queued cannot be relied on.</span> <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>send_next_data</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>HttpResult</span><span class='op'><</span><span class='ident'>SendStatus</span><span class='op'>></span> { <span class='macro'>debug</span><span class='macro'>!</span>(<span class='string'>"Sending next data..."</span>); <span class='comment'>// A default "maximum" chunk size of 8 KiB is set on all data frames.</span> <span class='kw'>const</span> <span class='ident'>MAX_CHUNK_SIZE</span>: <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>8</span> <span class='op'>*</span> <span class='number'>1024</span>; <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>buf</span> <span class='op'>=</span> [<span class='number'>0</span>; <span class='ident'>MAX_CHUNK_SIZE</span>]; <span class='comment'>// TODO: Additionally account for the flow control windows.</span> <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>prioritizer</span> <span class='op'>=</span> <span class='ident'>SimplePrioritizer</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>state</span>, <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>buf</span>); <span class='self'>self</span>.<span class='ident'>conn</span>.<span class='ident'>send_next_data</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>prioritizer</span>) } } <span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span> <span class='kw'>mod</span> <span class='ident'>tests</span> { <span class='kw'>use</span> <span class='kw'>super</span>::<span class='ident'>ServerSession</span>; <span class='kw'>use</span> <span class='ident'>http</span>::<span class='ident'>tests</span>::<span class='ident'>common</span>::<span class='ident'>TestStream</span>; <span class='kw'>use</span> <span class='ident'>http</span>::<span class='ident'>session</span>::{<span class='ident'>DefaultSessionState</span>, <span class='ident'>SessionState</span>, <span class='ident'>Stream</span>, <span class='ident'>Session</span>}; <span class='doccomment'>/// Tests that the `ServerSession` correctly manages the stream state.</span> <span class='attribute'>#[<span class='ident'>test</span>]</span> <span class='kw'>fn</span> <span class='ident'>test_server_session</span>() { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>state</span> <span class='op'>=</span> <span class='ident'>DefaultSessionState</span>::<span class='op'><</span><span class='ident'>TestStream</span><span class='op'>></span>::<span class='ident'>new</span>(); <span class='comment'>// Receiving new headers results in a new stream being created</span> <span class='kw'>let</span> <span class='ident'>headers</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[(<span class='string'>b":method"</span>.<span class='ident'>to_vec</span>(), <span class='string'>b"GET"</span>.<span class='ident'>to_vec</span>())]; { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>state</span>); <span class='ident'>session</span>.<span class='ident'>new_headers</span>(<span class='number'>1</span>, <span class='ident'>headers</span>.<span class='ident'>clone</span>()); } <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>1</span>).<span class='ident'>is_some</span>()); <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>1</span>).<span class='ident'>unwrap</span>().<span class='ident'>headers</span>.<span class='ident'>clone</span>().<span class='ident'>unwrap</span>(), <span class='ident'>headers</span>); <span class='comment'>// Now some data arrives on the stream...</span> { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>state</span>); <span class='ident'>session</span>.<span class='ident'>new_data_chunk</span>(<span class='number'>1</span>, <span class='kw-2'>&</span>[<span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>]); } <span class='comment'>// ...works.</span> <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>1</span>).<span class='ident'>unwrap</span>().<span class='ident'>body</span>, <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>]); <span class='comment'>// Some more data...</span> { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>state</span>); <span class='ident'>session</span>.<span class='ident'>new_data_chunk</span>(<span class='number'>1</span>, <span class='kw-2'>&</span>[<span class='number'>4</span>]); } <span class='comment'>// ...all good.</span> <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>1</span>).<span class='ident'>unwrap</span>().<span class='ident'>body</span>, <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>, <span class='number'>4</span>]); <span class='comment'>// Add another stream in the mix</span> { <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>state</span>); <span class='ident'>session</span>.<span class='ident'>new_headers</span>(<span class='number'>3</span>, <span class='ident'>headers</span>.<span class='ident'>clone</span>()); <span class='ident'>session</span>.<span class='ident'>new_data_chunk</span>(<span class='number'>3</span>, <span class='kw-2'>&</span>[<span class='number'>100</span>]); } <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>3</span>).<span class='ident'>is_some</span>()); <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>3</span>).<span class='ident'>unwrap</span>().<span class='ident'>headers</span>.<span class='ident'>clone</span>().<span class='ident'>unwrap</span>(), <span class='ident'>headers</span>); <span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>3</span>).<span class='ident'>unwrap</span>().<span class='ident'>body</span>, <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>100</span>]); { <span class='comment'>// Finally, the stream 1 ends...</span> <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>session</span> <span class='op'>=</span> <span class='ident'>ServerSession</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>state</span>); <span class='ident'>session</span>.<span class='ident'>end_of_stream</span>(<span class='number'>1</span>); } <span class='comment'>// ...and gets closed.</span> <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>1</span>).<span class='ident'>unwrap</span>().<span class='ident'>is_closed_remote</span>()); <span class='comment'>// but not the other one.</span> <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>state</span>.<span class='ident'>get_stream_ref</span>(<span class='number'>3</span>).<span class='ident'>unwrap</span>().<span class='ident'>is_closed_remote</span>()); 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