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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="Source of the Rust file `perf/src/server.rs`."><title>server.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="perf" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (b6f0945e4 2025-10-08)" data-channel="nightly" data-search-js="search-8d3311b9.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">perf/</div>server.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="kw">use </span>std::{net::SocketAddr, path::PathBuf, sync::Arc, time::Duration};
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<a href=#2 id=2 data-nosnippet>2</a>
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<a href=#3 id=3 data-nosnippet>3</a><span class="kw">use </span>anyhow::{Context, <span class="prelude-ty">Result</span>};
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<a href=#4 id=4 data-nosnippet>4</a><span class="kw">use </span>bytes::Bytes;
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<a href=#5 id=5 data-nosnippet>5</a><span class="kw">use </span>clap::Parser;
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<a href=#6 id=6 data-nosnippet>6</a><span class="kw">use </span>quinn::{TokioRuntime, crypto::rustls::QuicServerConfig};
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<a href=#7 id=7 data-nosnippet>7</a><span class="kw">use </span>rustls::pki_types::{CertificateDer, PrivateKeyDer, PrivatePkcs8KeyDer, pem::PemObject};
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<a href=#8 id=8 data-nosnippet>8</a><span class="kw">use </span>tracing::{debug, error, info};
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<a href=#9 id=9 data-nosnippet>9</a>
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<a href=#10 id=10 data-nosnippet>10</a><span class="kw">use crate</span>::{CommonOpt, PERF_CIPHER_SUITES, noprotection::NoProtectionServerConfig};
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<a href=#11 id=11 data-nosnippet>11</a>
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<a href=#12 id=12 data-nosnippet>12</a><span class="attr">#[derive(Parser)]
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<a href=#13 id=13 data-nosnippet>13</a>#[clap(name = <span class="string">"server"</span>)]
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<a href=#14 id=14 data-nosnippet>14</a></span><span class="kw">pub struct </span>Opt {
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<a href=#15 id=15 data-nosnippet>15</a> <span class="doccomment">/// Address to listen on
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<a href=#16 id=16 data-nosnippet>16</a> </span><span class="attr">#[clap(long = <span class="string">"listen"</span>, default_value = <span class="string">"[::]:4433"</span>)]
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<a href=#17 id=17 data-nosnippet>17</a> </span>listen: SocketAddr,
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<a href=#18 id=18 data-nosnippet>18</a> <span class="doccomment">/// TLS private key in DER format
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<a href=#19 id=19 data-nosnippet>19</a> </span><span class="attr">#[clap(short = <span class="string">'k'</span>, long = <span class="string">"key"</span>, requires = <span class="string">"cert"</span>)]
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<a href=#20 id=20 data-nosnippet>20</a> </span>key: <span class="prelude-ty">Option</span><PathBuf>,
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<a href=#21 id=21 data-nosnippet>21</a> <span class="doccomment">/// TLS certificate in PEM format
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<a href=#22 id=22 data-nosnippet>22</a> </span><span class="attr">#[clap(short = <span class="string">'c'</span>, long = <span class="string">"cert"</span>, requires = <span class="string">"key"</span>)]
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<a href=#23 id=23 data-nosnippet>23</a> </span>cert: <span class="prelude-ty">Option</span><PathBuf>,
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<a href=#24 id=24 data-nosnippet>24</a> <span class="doccomment">/// Common options
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<a href=#25 id=25 data-nosnippet>25</a> </span><span class="attr">#[command(flatten)]
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<a href=#26 id=26 data-nosnippet>26</a> </span>common: CommonOpt,
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<a href=#27 id=27 data-nosnippet>27</a>}
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<a href=#28 id=28 data-nosnippet>28</a>
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<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub async fn </span>run(opt: Opt) -> <span class="prelude-ty">Result</span><()> {
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<a href=#30 id=30 data-nosnippet>30</a> <span class="kw">let </span>(key, cert) = <span class="kw">match </span>(<span class="kw-2">&</span>opt.key, <span class="kw-2">&</span>opt.cert) {
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<a href=#31 id=31 data-nosnippet>31</a> (<span class="prelude-val">Some</span>(key), <span class="prelude-val">Some</span>(cert)) => (
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<a href=#32 id=32 data-nosnippet>32</a> PrivateKeyDer::from_pem_file(key).context(<span class="string">"reading private key"</span>)<span class="question-mark">?</span>,
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<a href=#33 id=33 data-nosnippet>33</a> CertificateDer::pem_file_iter(cert)
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<a href=#34 id=34 data-nosnippet>34</a> .context(<span class="string">"reading certificate chain file"</span>)<span class="question-mark">?
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<a href=#35 id=35 data-nosnippet>35</a> </span>.collect::<<span class="prelude-ty">Result</span><<span class="kw">_</span>, <span class="kw">_</span>>>()
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<a href=#36 id=36 data-nosnippet>36</a> .context(<span class="string">"reading certificate chain"</span>)<span class="question-mark">?</span>,
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<a href=#37 id=37 data-nosnippet>37</a> ),
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<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">_ </span>=> {
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<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">let </span>cert = rcgen::generate_simple_self_signed(<span class="macro">vec!</span>[<span class="string">"localhost"</span>.into()]).unwrap();
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<a href=#40 id=40 data-nosnippet>40</a> (
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<a href=#41 id=41 data-nosnippet>41</a> PrivatePkcs8KeyDer::from(cert.signing_key.serialize_der()).into(),
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<a href=#42 id=42 data-nosnippet>42</a> <span class="macro">vec!</span>[CertificateDer::from(cert.cert)],
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<a href=#43 id=43 data-nosnippet>43</a> )
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<a href=#44 id=44 data-nosnippet>44</a> }
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<a href=#45 id=45 data-nosnippet>45</a> };
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<a href=#46 id=46 data-nosnippet>46</a>
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<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">let </span>default_provider = rustls::crypto::ring::default_provider();
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<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">let </span>provider = rustls::crypto::CryptoProvider {
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<a href=#49 id=49 data-nosnippet>49</a> cipher_suites: PERF_CIPHER_SUITES.into(),
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<a href=#50 id=50 data-nosnippet>50</a> ..default_provider
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<a href=#51 id=51 data-nosnippet>51</a> };
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<a href=#52 id=52 data-nosnippet>52</a>
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<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">let </span><span class="kw-2">mut </span>crypto = rustls::ServerConfig::builder_with_provider(provider.into())
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<a href=#54 id=54 data-nosnippet>54</a> .with_protocol_versions(<span class="kw-2">&</span>[<span class="kw-2">&</span>rustls::version::TLS13])
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<a href=#55 id=55 data-nosnippet>55</a> .unwrap()
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<a href=#56 id=56 data-nosnippet>56</a> .with_no_client_auth()
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<a href=#57 id=57 data-nosnippet>57</a> .with_single_cert(cert, key)
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<a href=#58 id=58 data-nosnippet>58</a> .unwrap();
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<a href=#59 id=59 data-nosnippet>59</a> crypto.alpn_protocols = <span class="macro">vec!</span>[<span class="string">b"perf"</span>.to_vec()];
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<a href=#60 id=60 data-nosnippet>60</a>
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<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">if </span>opt.common.keylog {
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<a href=#62 id=62 data-nosnippet>62</a> crypto.key_log = Arc::new(rustls::KeyLogFile::new());
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<a href=#63 id=63 data-nosnippet>63</a> }
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<a href=#64 id=64 data-nosnippet>64</a>
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<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">let </span>transport = opt.common.build_transport_config(
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<a href=#66 id=66 data-nosnippet>66</a> <span class="attr">#[cfg(feature = <span class="string">"qlog"</span>)]
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<a href=#67 id=67 data-nosnippet>67</a> </span><span class="string">"perf-server"</span>,
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<a href=#68 id=68 data-nosnippet>68</a> )<span class="question-mark">?</span>;
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<a href=#69 id=69 data-nosnippet>69</a>
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<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">let </span>crypto = Arc::new(QuicServerConfig::try_from(crypto)<span class="question-mark">?</span>);
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<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">let </span><span class="kw-2">mut </span>config = quinn::ServerConfig::with_crypto(<span class="kw">match </span>opt.common.no_protection {
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<a href=#72 id=72 data-nosnippet>72</a> <span class="bool-val">true </span>=> Arc::new(NoProtectionServerConfig::new(crypto)),
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<a href=#73 id=73 data-nosnippet>73</a> <span class="bool-val">false </span>=> crypto,
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<a href=#74 id=74 data-nosnippet>74</a> });
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<a href=#75 id=75 data-nosnippet>75</a> config.transport_config(Arc::new(transport));
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<a href=#76 id=76 data-nosnippet>76</a>
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<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">let </span>socket = opt.common.bind_socket(opt.listen)<span class="question-mark">?</span>;
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<a href=#78 id=78 data-nosnippet>78</a>
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<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">let </span><span class="kw-2">mut </span>endpoint_cfg = quinn::EndpointConfig::default();
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<a href=#80 id=80 data-nosnippet>80</a> endpoint_cfg.max_udp_payload_size(opt.common.max_udp_payload_size)<span class="question-mark">?</span>;
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<a href=#81 id=81 data-nosnippet>81</a>
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<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">let </span>endpoint = quinn::Endpoint::new(endpoint_cfg, <span class="prelude-val">Some</span>(config), socket, Arc::new(TokioRuntime))
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<a href=#83 id=83 data-nosnippet>83</a> .context(<span class="string">"creating endpoint"</span>)<span class="question-mark">?</span>;
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<a href=#84 id=84 data-nosnippet>84</a>
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<a href=#85 id=85 data-nosnippet>85</a> <span class="macro">info!</span>(<span class="string">"listening on {}"</span>, endpoint.local_addr().unwrap());
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<a href=#86 id=86 data-nosnippet>86</a>
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<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">let </span>opt = Arc::new(opt);
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<a href=#88 id=88 data-nosnippet>88</a>
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<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(handshake) = endpoint.accept().<span class="kw">await </span>{
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<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">let </span>opt = opt.clone();
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<a href=#91 id=91 data-nosnippet>91</a> tokio::spawn(<span class="kw">async move </span>{
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<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">if let </span><span class="prelude-val">Err</span>(e) = handle(handshake, opt).<span class="kw">await </span>{
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<a href=#93 id=93 data-nosnippet>93</a> <span class="macro">error!</span>(<span class="string">"connection lost: {:#}"</span>, e);
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<a href=#94 id=94 data-nosnippet>94</a> }
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<a href=#95 id=95 data-nosnippet>95</a> });
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<a href=#96 id=96 data-nosnippet>96</a> }
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<a href=#97 id=97 data-nosnippet>97</a>
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<a href=#98 id=98 data-nosnippet>98</a> <span class="prelude-val">Ok</span>(())
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<a href=#99 id=99 data-nosnippet>99</a>}
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<a href=#100 id=100 data-nosnippet>100</a>
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<a href=#101 id=101 data-nosnippet>101</a><span class="kw">async fn </span>handle(handshake: quinn::Incoming, opt: Arc<Opt>) -> <span class="prelude-ty">Result</span><()> {
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<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">let </span>connection = handshake.<span class="kw">await</span>.context(<span class="string">"handshake failed"</span>)<span class="question-mark">?</span>;
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<a href=#103 id=103 data-nosnippet>103</a>
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<a href=#104 id=104 data-nosnippet>104</a> <span class="macro">debug!</span>(<span class="string">"{} connected"</span>, connection.remote_address());
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<a href=#105 id=105 data-nosnippet>105</a> <span class="macro">tokio::try_join!</span>(
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<a href=#106 id=106 data-nosnippet>106</a> drive_uni(connection.clone()),
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<a href=#107 id=107 data-nosnippet>107</a> drive_bi(connection.clone()),
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<a href=#108 id=108 data-nosnippet>108</a> conn_stats(connection, opt)
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<a href=#109 id=109 data-nosnippet>109</a> )<span class="question-mark">?</span>;
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<a href=#110 id=110 data-nosnippet>110</a> <span class="prelude-val">Ok</span>(())
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<a href=#111 id=111 data-nosnippet>111</a>}
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<a href=#112 id=112 data-nosnippet>112</a>
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<a href=#113 id=113 data-nosnippet>113</a><span class="kw">async fn </span>conn_stats(connection: quinn::Connection, opt: Arc<Opt>) -> <span class="prelude-ty">Result</span><()> {
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<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">if </span>opt.common.conn_stats {
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<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">loop </span>{
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<a href=#116 id=116 data-nosnippet>116</a> tokio::time::sleep(Duration::from_secs(<span class="number">2</span>)).<span class="kw">await</span>;
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<a href=#117 id=117 data-nosnippet>117</a> <span class="macro">println!</span>(<span class="string">"{:?}\n"</span>, connection.stats());
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<a href=#118 id=118 data-nosnippet>118</a> }
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<a href=#119 id=119 data-nosnippet>119</a> }
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<a href=#120 id=120 data-nosnippet>120</a>
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<a href=#121 id=121 data-nosnippet>121</a> <span class="prelude-val">Ok</span>(())
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<a href=#122 id=122 data-nosnippet>122</a>}
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<a href=#123 id=123 data-nosnippet>123</a>
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<a href=#124 id=124 data-nosnippet>124</a><span class="kw">async fn </span>drive_uni(connection: quinn::Connection) -> <span class="prelude-ty">Result</span><()> {
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<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">while let </span><span class="prelude-val">Ok</span>(stream) = connection.accept_uni().<span class="kw">await </span>{
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<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">let </span>connection = connection.clone();
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<a href=#127 id=127 data-nosnippet>127</a> tokio::spawn(<span class="kw">async move </span>{
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<a href=#128 id=128 data-nosnippet>128</a> <span class="kw">if let </span><span class="prelude-val">Err</span>(e) = handle_uni(connection, stream).<span class="kw">await </span>{
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<a href=#129 id=129 data-nosnippet>129</a> <span class="macro">error!</span>(<span class="string">"request failed: {:#}"</span>, e);
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<a href=#130 id=130 data-nosnippet>130</a> }
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<a href=#131 id=131 data-nosnippet>131</a> });
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<a href=#132 id=132 data-nosnippet>132</a> }
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<a href=#133 id=133 data-nosnippet>133</a> <span class="prelude-val">Ok</span>(())
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<a href=#134 id=134 data-nosnippet>134</a>}
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<a href=#135 id=135 data-nosnippet>135</a>
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<a href=#136 id=136 data-nosnippet>136</a><span class="kw">async fn </span>handle_uni(connection: quinn::Connection, stream: quinn::RecvStream) -> <span class="prelude-ty">Result</span><()> {
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<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">let </span>bytes = read_req(stream).<span class="kw">await</span><span class="question-mark">?</span>;
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<a href=#138 id=138 data-nosnippet>138</a> <span class="kw">let </span>response = connection.open_uni().<span class="kw">await</span><span class="question-mark">?</span>;
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<a href=#139 id=139 data-nosnippet>139</a> respond(bytes, response).<span class="kw">await</span><span class="question-mark">?</span>;
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<a href=#140 id=140 data-nosnippet>140</a> <span class="prelude-val">Ok</span>(())
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<a href=#141 id=141 data-nosnippet>141</a>}
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<a href=#142 id=142 data-nosnippet>142</a>
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<a href=#143 id=143 data-nosnippet>143</a><span class="kw">async fn </span>drive_bi(connection: quinn::Connection) -> <span class="prelude-ty">Result</span><()> {
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<a href=#144 id=144 data-nosnippet>144</a> <span class="kw">while let </span><span class="prelude-val">Ok</span>((send, recv)) = connection.accept_bi().<span class="kw">await </span>{
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<a href=#145 id=145 data-nosnippet>145</a> tokio::spawn(<span class="kw">async move </span>{
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<a href=#146 id=146 data-nosnippet>146</a> <span class="kw">if let </span><span class="prelude-val">Err</span>(e) = handle_bi(send, recv).<span class="kw">await </span>{
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<a href=#147 id=147 data-nosnippet>147</a> <span class="macro">error!</span>(<span class="string">"request failed: {:#}"</span>, e);
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<a href=#148 id=148 data-nosnippet>148</a> }
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<a href=#149 id=149 data-nosnippet>149</a> });
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<a href=#150 id=150 data-nosnippet>150</a> }
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<a href=#151 id=151 data-nosnippet>151</a> <span class="prelude-val">Ok</span>(())
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<a href=#152 id=152 data-nosnippet>152</a>}
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<a href=#153 id=153 data-nosnippet>153</a>
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<a href=#154 id=154 data-nosnippet>154</a><span class="kw">async fn </span>handle_bi(send: quinn::SendStream, recv: quinn::RecvStream) -> <span class="prelude-ty">Result</span><()> {
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<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">let </span>bytes = read_req(recv).<span class="kw">await</span><span class="question-mark">?</span>;
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<a href=#156 id=156 data-nosnippet>156</a> respond(bytes, send).<span class="kw">await</span><span class="question-mark">?</span>;
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<a href=#157 id=157 data-nosnippet>157</a> <span class="prelude-val">Ok</span>(())
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<a href=#158 id=158 data-nosnippet>158</a>}
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<a href=#159 id=159 data-nosnippet>159</a>
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<a href=#160 id=160 data-nosnippet>160</a><span class="kw">async fn </span>read_req(<span class="kw-2">mut </span>stream: quinn::RecvStream) -> <span class="prelude-ty">Result</span><u64> {
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<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; <span class="number">8</span>];
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<a href=#162 id=162 data-nosnippet>162</a> stream
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<a href=#163 id=163 data-nosnippet>163</a> .read_exact(<span class="kw-2">&mut </span>buf)
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<a href=#164 id=164 data-nosnippet>164</a> .<span class="kw">await
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<a href=#165 id=165 data-nosnippet>165</a> </span>.context(<span class="string">"reading request"</span>)<span class="question-mark">?</span>;
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<a href=#166 id=166 data-nosnippet>166</a> <span class="kw">let </span>n = u64::from_be_bytes(buf);
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<a href=#167 id=167 data-nosnippet>167</a> <span class="macro">debug!</span>(<span class="string">"got req for {} bytes on {}"</span>, n, stream.id());
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<a href=#168 id=168 data-nosnippet>168</a> drain_stream(stream).<span class="kw">await</span><span class="question-mark">?</span>;
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<a href=#169 id=169 data-nosnippet>169</a> <span class="prelude-val">Ok</span>(n)
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<a href=#170 id=170 data-nosnippet>170</a>}
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<a href=#171 id=171 data-nosnippet>171</a>
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<a href=#172 id=172 data-nosnippet>172</a><span class="kw">async fn </span>drain_stream(<span class="kw-2">mut </span>stream: quinn::RecvStream) -> <span class="prelude-ty">Result</span><()> {
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<a href=#173 id=173 data-nosnippet>173</a> <span class="attr">#[rustfmt::skip]
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<a href=#174 id=174 data-nosnippet>174</a> </span><span class="kw">let </span><span class="kw-2">mut </span>bufs = [
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<a href=#175 id=175 data-nosnippet>175</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#176 id=176 data-nosnippet>176</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#177 id=177 data-nosnippet>177</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#178 id=178 data-nosnippet>178</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#179 id=179 data-nosnippet>179</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#180 id=180 data-nosnippet>180</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#181 id=181 data-nosnippet>181</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#182 id=182 data-nosnippet>182</a> Bytes::new(), Bytes::new(), Bytes::new(), Bytes::new(),
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<a href=#183 id=183 data-nosnippet>183</a> ];
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<a href=#184 id=184 data-nosnippet>184</a> <span class="kw">while </span>stream.read_chunks(<span class="kw-2">&mut </span>bufs[..]).<span class="kw">await</span><span class="question-mark">?</span>.is_some() {}
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<a href=#185 id=185 data-nosnippet>185</a> <span class="macro">debug!</span>(<span class="string">"finished reading {}"</span>, stream.id());
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<a href=#186 id=186 data-nosnippet>186</a> <span class="prelude-val">Ok</span>(())
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<a href=#187 id=187 data-nosnippet>187</a>}
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<a href=#188 id=188 data-nosnippet>188</a>
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<a href=#189 id=189 data-nosnippet>189</a><span class="kw">async fn </span>respond(<span class="kw-2">mut </span>bytes: u64, <span class="kw-2">mut </span>stream: quinn::SendStream) -> <span class="prelude-ty">Result</span><()> {
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<a href=#190 id=190 data-nosnippet>190</a> <span class="kw">static </span>DATA: [u8; <span class="number">1024 </span>* <span class="number">1024</span>] = [<span class="number">42</span>; <span class="number">1024 </span>* <span class="number">1024</span>];
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<a href=#191 id=191 data-nosnippet>191</a>
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<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">while </span>bytes > <span class="number">0 </span>{
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<a href=#193 id=193 data-nosnippet>193</a> <span class="kw">let </span>chunk_len = bytes.min(DATA.len() <span class="kw">as </span>u64);
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<a href=#194 id=194 data-nosnippet>194</a> stream
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<a href=#195 id=195 data-nosnippet>195</a> .write_chunk(Bytes::from_static(<span class="kw-2">&</span>DATA[..chunk_len <span class="kw">as </span>usize]))
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<a href=#196 id=196 data-nosnippet>196</a> .<span class="kw">await
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<a href=#197 id=197 data-nosnippet>197</a> </span>.context(<span class="string">"sending response"</span>)<span class="question-mark">?</span>;
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<a href=#198 id=198 data-nosnippet>198</a> bytes -= chunk_len;
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<a href=#199 id=199 data-nosnippet>199</a> }
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<a href=#200 id=200 data-nosnippet>200</a> <span class="macro">debug!</span>(<span class="string">"finished responding on {}"</span>, stream.id());
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<a href=#201 id=201 data-nosnippet>201</a> <span class="prelude-val">Ok</span>(())
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<a href=#202 id=202 data-nosnippet>202</a>}</code></pre></div></section></main></body></html> |