api-docs/crates-app/src/hyper/proto/h1/conn.rs.html - incubator-teaclave-website - Git at Google

 <!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 `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/hyper-0.14.26/src/proto/h1/conn.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>conn.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../normalize.css"><link rel="stylesheet" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../dark.css" disabled><link rel="stylesheet" href="../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../storage.js"></script><script defer src="../../../../source-script.js"></script><script defer src="../../../../source-files.js"></script><script defer src="../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../hyper/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../hyper/index.html"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-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 id="38">38</span>
 <span id="39">39</span>
 <span id="40">40</span>
 <span id="41">41</span>
 <span id="42">42</span>
 <span id="43">43</span>
 <span id="44">44</span>
 <span id="45">45</span>
 <span id="46">46</span>
 <span id="47">47</span>
 <span id="48">48</span>
 <span id="49">49</span>
 <span id="50">50</span>
 <span id="51">51</span>
 <span id="52">52</span>
 <span id="53">53</span>
 <span id="54">54</span>
 <span id="55">55</span>
 <span id="56">56</span>
 <span id="57">57</span>
 <span id="58">58</span>
 <span id="59">59</span>
 <span id="60">60</span>
 <span id="61">61</span>
 <span id="62">62</span>
 <span id="63">63</span>
 <span id="64">64</span>
 <span id="65">65</span>
 <span id="66">66</span>
 <span id="67">67</span>
 <span id="68">68</span>
 <span id="69">69</span>
 <span id="70">70</span>
 <span id="71">71</span>
 <span id="72">72</span>
 <span id="73">73</span>
 <span id="74">74</span>
 <span id="75">75</span>
 <span id="76">76</span>
 <span id="77">77</span>
 <span id="78">78</span>
 <span id="79">79</span>
 <span id="80">80</span>
 <span id="81">81</span>
 <span id="82">82</span>
 <span id="83">83</span>
 <span id="84">84</span>
 <span id="85">85</span>
 <span id="86">86</span>
 <span id="87">87</span>
 <span id="88">88</span>
 <span id="89">89</span>
 <span id="90">90</span>
 <span id="91">91</span>
 <span id="92">92</span>
 <span id="93">93</span>
 <span id="94">94</span>
 <span id="95">95</span>
 <span id="96">96</span>
 <span id="97">97</span>
 <span id="98">98</span>
 <span id="99">99</span>
 <span id="100">100</span>
 <span id="101">101</span>
 <span id="102">102</span>
 <span id="103">103</span>
 <span id="104">104</span>
 <span id="105">105</span>
 <span id="106">106</span>
 <span id="107">107</span>
 <span id="108">108</span>
 <span id="109">109</span>
 <span id="110">110</span>
 <span id="111">111</span>
 <span id="112">112</span>
 <span id="113">113</span>
 <span id="114">114</span>
 <span id="115">115</span>
 <span id="116">116</span>
 <span id="117">117</span>
 <span id="118">118</span>
 <span id="119">119</span>
 <span id="120">120</span>
 <span id="121">121</span>
 <span id="122">122</span>
 <span id="123">123</span>
 <span id="124">124</span>
 <span id="125">125</span>
 <span id="126">126</span>
 <span id="127">127</span>
 <span id="128">128</span>
 <span id="129">129</span>
 <span id="130">130</span>
 <span id="131">131</span>
 <span id="132">132</span>
 <span id="133">133</span>
 <span id="134">134</span>
 <span id="135">135</span>
 <span id="136">136</span>
 <span id="137">137</span>
 <span id="138">138</span>
 <span id="139">139</span>
 <span id="140">140</span>
 <span id="141">141</span>
 <span id="142">142</span>
 <span id="143">143</span>
 <span id="144">144</span>
 <span id="145">145</span>
 <span id="146">146</span>
 <span id="147">147</span>
 <span id="148">148</span>
 <span id="149">149</span>
 <span id="150">150</span>
 <span id="151">151</span>
 <span id="152">152</span>
 <span id="153">153</span>
 <span id="154">154</span>
 <span id="155">155</span>
 <span id="156">156</span>
 <span id="157">157</span>
 <span id="158">158</span>
 <span id="159">159</span>
 <span id="160">160</span>
 <span id="161">161</span>
 <span id="162">162</span>
 <span id="163">163</span>
 <span id="164">164</span>
 <span id="165">165</span>
 <span id="166">166</span>
 <span id="167">167</span>
 <span id="168">168</span>
 <span id="169">169</span>
 <span id="170">170</span>
 <span id="171">171</span>
 <span id="172">172</span>
 <span id="173">173</span>
 <span id="174">174</span>
 <span id="175">175</span>
 <span id="176">176</span>
 <span id="177">177</span>
 <span id="178">178</span>
 <span id="179">179</span>
 <span id="180">180</span>
 <span id="181">181</span>
 <span id="182">182</span>
 <span id="183">183</span>
 <span id="184">184</span>
 <span id="185">185</span>
 <span id="186">186</span>
 <span id="187">187</span>
 <span id="188">188</span>
 <span id="189">189</span>
 <span id="190">190</span>
 <span id="191">191</span>
 <span id="192">192</span>
 <span id="193">193</span>
 <span id="194">194</span>
 <span id="195">195</span>
 <span id="196">196</span>
 <span id="197">197</span>
 <span id="198">198</span>
 <span id="199">199</span>
 <span id="200">200</span>
 <span id="201">201</span>
 <span id="202">202</span>
 <span id="203">203</span>
 <span id="204">204</span>
 <span id="205">205</span>
 <span id="206">206</span>
 <span id="207">207</span>
 <span id="208">208</span>
 <span id="209">209</span>
 <span id="210">210</span>
 <span id="211">211</span>
 <span id="212">212</span>
 <span id="213">213</span>
 <span id="214">214</span>
 <span id="215">215</span>
 <span id="216">216</span>
 <span id="217">217</span>
 <span id="218">218</span>
 <span id="219">219</span>
 <span id="220">220</span>
 <span id="221">221</span>
 <span id="222">222</span>
 <span id="223">223</span>
 <span id="224">224</span>
 <span id="225">225</span>
 <span id="226">226</span>
 <span id="227">227</span>
 <span id="228">228</span>
 <span id="229">229</span>
 <span id="230">230</span>
 <span id="231">231</span>
 <span id="232">232</span>
 <span id="233">233</span>
 <span id="234">234</span>
 <span id="235">235</span>
 <span id="236">236</span>
 <span id="237">237</span>
 <span id="238">238</span>
 <span id="239">239</span>
 <span id="240">240</span>
 <span id="241">241</span>
 <span id="242">242</span>
 <span id="243">243</span>
 <span id="244">244</span>
 <span id="245">245</span>
 <span id="246">246</span>
 <span id="247">247</span>
 <span id="248">248</span>
 <span id="249">249</span>
 <span id="250">250</span>
 <span id="251">251</span>
 <span id="252">252</span>
 <span id="253">253</span>
 <span id="254">254</span>
 <span id="255">255</span>
 <span id="256">256</span>
 <span id="257">257</span>
 <span id="258">258</span>
 <span id="259">259</span>
 <span id="260">260</span>
 <span id="261">261</span>
 <span id="262">262</span>
 <span id="263">263</span>
 <span id="264">264</span>
 <span id="265">265</span>
 <span id="266">266</span>
 <span id="267">267</span>
 <span id="268">268</span>
 <span id="269">269</span>
 <span id="270">270</span>
 <span id="271">271</span>
 <span id="272">272</span>
 <span id="273">273</span>
 <span id="274">274</span>
 <span id="275">275</span>
 <span id="276">276</span>
 <span id="277">277</span>
 <span id="278">278</span>
 <span id="279">279</span>
 <span id="280">280</span>
 <span id="281">281</span>
 <span id="282">282</span>
 <span id="283">283</span>
 <span id="284">284</span>
 <span id="285">285</span>
 <span id="286">286</span>
 <span id="287">287</span>
 <span id="288">288</span>
 <span id="289">289</span>
 <span id="290">290</span>
 <span id="291">291</span>
 <span id="292">292</span>
 <span id="293">293</span>
 <span id="294">294</span>
 <span id="295">295</span>
 <span id="296">296</span>
 <span id="297">297</span>
 <span id="298">298</span>
 <span id="299">299</span>
 <span id="300">300</span>
 <span id="301">301</span>
 <span id="302">302</span>
 <span id="303">303</span>
 <span id="304">304</span>
 <span id="305">305</span>
 <span id="306">306</span>
 <span id="307">307</span>
 <span id="308">308</span>
 <span id="309">309</span>
 <span id="310">310</span>
 <span id="311">311</span>
 <span id="312">312</span>
 <span id="313">313</span>
 <span id="314">314</span>
 <span id="315">315</span>
 <span id="316">316</span>
 <span id="317">317</span>
 <span id="318">318</span>
 <span id="319">319</span>
 <span id="320">320</span>
 <span id="321">321</span>
 <span id="322">322</span>
 <span id="323">323</span>
 <span id="324">324</span>
 <span id="325">325</span>
 <span id="326">326</span>
 <span id="327">327</span>
 <span id="328">328</span>
 <span id="329">329</span>
 <span id="330">330</span>
 <span id="331">331</span>
 <span id="332">332</span>
 <span id="333">333</span>
 <span id="334">334</span>
 <span id="335">335</span>
 <span id="336">336</span>
 <span id="337">337</span>
 <span id="338">338</span>
 <span id="339">339</span>
 <span id="340">340</span>
 <span id="341">341</span>
 <span id="342">342</span>
 <span id="343">343</span>
 <span id="344">344</span>
 <span id="345">345</span>
 <span id="346">346</span>
 <span id="347">347</span>
 <span id="348">348</span>
 <span id="349">349</span>
 <span id="350">350</span>
 <span id="351">351</span>
 <span id="352">352</span>
 <span id="353">353</span>
 <span id="354">354</span>
 <span id="355">355</span>
 <span id="356">356</span>
 <span id="357">357</span>
 <span id="358">358</span>
 <span id="359">359</span>
 <span id="360">360</span>
 <span id="361">361</span>
 <span id="362">362</span>
 <span id="363">363</span>
 <span id="364">364</span>
 <span id="365">365</span>
 <span id="366">366</span>
 <span id="367">367</span>
 <span id="368">368</span>
 <span id="369">369</span>
 <span id="370">370</span>
 <span id="371">371</span>
 <span id="372">372</span>
 <span id="373">373</span>
 <span id="374">374</span>
 <span id="375">375</span>
 <span id="376">376</span>
 <span id="377">377</span>
 <span id="378">378</span>
 <span id="379">379</span>
 <span id="380">380</span>
 <span id="381">381</span>
 <span id="382">382</span>
 <span id="383">383</span>
 <span id="384">384</span>
 <span id="385">385</span>
 <span id="386">386</span>
 <span id="387">387</span>
 <span id="388">388</span>
 <span id="389">389</span>
 <span id="390">390</span>
 <span id="391">391</span>
 <span id="392">392</span>
 <span id="393">393</span>
 <span id="394">394</span>
 <span id="395">395</span>
 <span id="396">396</span>
 <span id="397">397</span>
 <span id="398">398</span>
 <span id="399">399</span>
 <span id="400">400</span>
 <span id="401">401</span>
 <span id="402">402</span>
 <span id="403">403</span>
 <span id="404">404</span>
 <span id="405">405</span>
 <span id="406">406</span>
 <span id="407">407</span>
 <span id="408">408</span>
 <span id="409">409</span>
 <span id="410">410</span>
 <span id="411">411</span>
 <span id="412">412</span>
 <span id="413">413</span>
 <span id="414">414</span>
 <span id="415">415</span>
 <span id="416">416</span>
 <span id="417">417</span>
 <span id="418">418</span>
 <span id="419">419</span>
 <span id="420">420</span>
 <span id="421">421</span>
 <span id="422">422</span>
 <span id="423">423</span>
 <span id="424">424</span>
 <span id="425">425</span>
 <span id="426">426</span>
 <span id="427">427</span>
 <span id="428">428</span>
 <span id="429">429</span>
 <span id="430">430</span>
 <span id="431">431</span>
 <span id="432">432</span>
 <span id="433">433</span>
 <span id="434">434</span>
 <span id="435">435</span>
 <span id="436">436</span>
 <span id="437">437</span>
 <span id="438">438</span>
 <span id="439">439</span>
 <span id="440">440</span>
 <span id="441">441</span>
 <span id="442">442</span>
 <span id="443">443</span>
 <span id="444">444</span>
 <span id="445">445</span>
 <span id="446">446</span>
 <span id="447">447</span>
 <span id="448">448</span>
 <span id="449">449</span>
 <span id="450">450</span>
 <span id="451">451</span>
 <span id="452">452</span>
 <span id="453">453</span>
 <span id="454">454</span>
 <span id="455">455</span>
 <span id="456">456</span>
 <span id="457">457</span>
 <span id="458">458</span>
 <span id="459">459</span>
 <span id="460">460</span>
 <span id="461">461</span>
 <span id="462">462</span>
 <span id="463">463</span>
 <span id="464">464</span>
 <span id="465">465</span>
 <span id="466">466</span>
 <span id="467">467</span>
 <span id="468">468</span>
 <span id="469">469</span>
 <span id="470">470</span>
 <span id="471">471</span>
 <span id="472">472</span>
 <span id="473">473</span>
 <span id="474">474</span>
 <span id="475">475</span>
 <span id="476">476</span>
 <span id="477">477</span>
 <span id="478">478</span>
 <span id="479">479</span>
 <span id="480">480</span>
 <span id="481">481</span>
 <span id="482">482</span>
 <span id="483">483</span>
 <span id="484">484</span>
 <span id="485">485</span>
 <span id="486">486</span>
 <span id="487">487</span>
 <span id="488">488</span>
 <span id="489">489</span>
 <span id="490">490</span>
 <span id="491">491</span>
 <span id="492">492</span>
 <span id="493">493</span>
 <span id="494">494</span>
 <span id="495">495</span>
 <span id="496">496</span>
 <span id="497">497</span>
 <span id="498">498</span>
 <span id="499">499</span>
 <span id="500">500</span>
 <span id="501">501</span>
 <span id="502">502</span>
 <span id="503">503</span>
 <span id="504">504</span>
 <span id="505">505</span>
 <span id="506">506</span>
 <span id="507">507</span>
 <span id="508">508</span>
 <span id="509">509</span>
 <span id="510">510</span>
 <span id="511">511</span>
 <span id="512">512</span>
 <span id="513">513</span>
 <span id="514">514</span>
 <span id="515">515</span>
 <span id="516">516</span>
 <span id="517">517</span>
 <span id="518">518</span>
 <span id="519">519</span>
 <span id="520">520</span>
 <span id="521">521</span>
 <span id="522">522</span>
 <span id="523">523</span>
 <span id="524">524</span>
 <span id="525">525</span>
 <span id="526">526</span>
 <span id="527">527</span>
 <span id="528">528</span>
 <span id="529">529</span>
 <span id="530">530</span>
 <span id="531">531</span>
 <span id="532">532</span>
 <span id="533">533</span>
 <span id="534">534</span>
 <span id="535">535</span>
 <span id="536">536</span>
 <span id="537">537</span>
 <span id="538">538</span>
 <span id="539">539</span>
 <span id="540">540</span>
 <span id="541">541</span>
 <span id="542">542</span>
 <span id="543">543</span>
 <span id="544">544</span>
 <span id="545">545</span>
 <span id="546">546</span>
 <span id="547">547</span>
 <span id="548">548</span>
 <span id="549">549</span>
 <span id="550">550</span>
 <span id="551">551</span>
 <span id="552">552</span>
 <span id="553">553</span>
 <span id="554">554</span>
 <span id="555">555</span>
 <span id="556">556</span>
 <span id="557">557</span>
 <span id="558">558</span>
 <span id="559">559</span>
 <span id="560">560</span>
 <span id="561">561</span>
 <span id="562">562</span>
 <span id="563">563</span>
 <span id="564">564</span>
 <span id="565">565</span>
 <span id="566">566</span>
 <span id="567">567</span>
 <span id="568">568</span>
 <span id="569">569</span>
 <span id="570">570</span>
 <span id="571">571</span>
 <span id="572">572</span>
 <span id="573">573</span>
 <span id="574">574</span>
 <span id="575">575</span>
 <span id="576">576</span>
 <span id="577">577</span>
 <span id="578">578</span>
 <span id="579">579</span>
 <span id="580">580</span>
 <span id="581">581</span>
 <span id="582">582</span>
 <span id="583">583</span>
 <span id="584">584</span>
 <span id="585">585</span>
 <span id="586">586</span>
 <span id="587">587</span>
 <span id="588">588</span>
 <span id="589">589</span>
 <span id="590">590</span>
 <span id="591">591</span>
 <span id="592">592</span>
 <span id="593">593</span>
 <span id="594">594</span>
 <span id="595">595</span>
 <span id="596">596</span>
 <span id="597">597</span>
 <span id="598">598</span>
 <span id="599">599</span>
 <span id="600">600</span>
 <span id="601">601</span>
 <span id="602">602</span>
 <span id="603">603</span>
 <span id="604">604</span>
 <span id="605">605</span>
 <span id="606">606</span>
 <span id="607">607</span>
 <span id="608">608</span>
 <span id="609">609</span>
 <span id="610">610</span>
 <span id="611">611</span>
 <span id="612">612</span>
 <span id="613">613</span>
 <span id="614">614</span>
 <span id="615">615</span>
 <span id="616">616</span>
 <span id="617">617</span>
 <span id="618">618</span>
 <span id="619">619</span>
 <span id="620">620</span>
 <span id="621">621</span>
 <span id="622">622</span>
 <span id="623">623</span>
 <span id="624">624</span>
 <span id="625">625</span>
 <span id="626">626</span>
 <span id="627">627</span>
 <span id="628">628</span>
 <span id="629">629</span>
 <span id="630">630</span>
 <span id="631">631</span>
 <span id="632">632</span>
 <span id="633">633</span>
 <span id="634">634</span>
 <span id="635">635</span>
 <span id="636">636</span>
 <span id="637">637</span>
 <span id="638">638</span>
 <span id="639">639</span>
 <span id="640">640</span>
 <span id="641">641</span>
 <span id="642">642</span>
 <span id="643">643</span>
 <span id="644">644</span>
 <span id="645">645</span>
 <span id="646">646</span>
 <span id="647">647</span>
 <span id="648">648</span>
 <span id="649">649</span>
 <span id="650">650</span>
 <span id="651">651</span>
 <span id="652">652</span>
 <span id="653">653</span>
 <span id="654">654</span>
 <span id="655">655</span>
 <span id="656">656</span>
 <span id="657">657</span>
 <span id="658">658</span>
 <span id="659">659</span>
 <span id="660">660</span>
 <span id="661">661</span>
 <span id="662">662</span>
 <span id="663">663</span>
 <span id="664">664</span>
 <span id="665">665</span>
 <span id="666">666</span>
 <span id="667">667</span>
 <span id="668">668</span>
 <span id="669">669</span>
 <span id="670">670</span>
 <span id="671">671</span>
 <span id="672">672</span>
 <span id="673">673</span>
 <span id="674">674</span>
 <span id="675">675</span>
 <span id="676">676</span>
 <span id="677">677</span>
 <span id="678">678</span>
 <span id="679">679</span>
 <span id="680">680</span>
 <span id="681">681</span>
 <span id="682">682</span>
 <span id="683">683</span>
 <span id="684">684</span>
 <span id="685">685</span>
 <span id="686">686</span>
 <span id="687">687</span>
 <span id="688">688</span>
 <span id="689">689</span>
 <span id="690">690</span>
 <span id="691">691</span>
 <span id="692">692</span>
 <span id="693">693</span>
 <span id="694">694</span>
 <span id="695">695</span>
 <span id="696">696</span>
 <span id="697">697</span>
 <span id="698">698</span>
 <span id="699">699</span>
 <span id="700">700</span>
 <span id="701">701</span>
 <span id="702">702</span>
 <span id="703">703</span>
 <span id="704">704</span>
 <span id="705">705</span>
 <span id="706">706</span>
 <span id="707">707</span>
 <span id="708">708</span>
 <span id="709">709</span>
 <span id="710">710</span>
 <span id="711">711</span>
 <span id="712">712</span>
 <span id="713">713</span>
 <span id="714">714</span>
 <span id="715">715</span>
 <span id="716">716</span>
 <span id="717">717</span>
 <span id="718">718</span>
 <span id="719">719</span>
 <span id="720">720</span>
 <span id="721">721</span>
 <span id="722">722</span>
 <span id="723">723</span>
 <span id="724">724</span>
 <span id="725">725</span>
 <span id="726">726</span>
 <span id="727">727</span>
 <span id="728">728</span>
 <span id="729">729</span>
 <span id="730">730</span>
 <span id="731">731</span>
 <span id="732">732</span>
 <span id="733">733</span>
 <span id="734">734</span>
 <span id="735">735</span>
 <span id="736">736</span>
 <span id="737">737</span>
 <span id="738">738</span>
 <span id="739">739</span>
 <span id="740">740</span>
 <span id="741">741</span>
 <span id="742">742</span>
 <span id="743">743</span>
 <span id="744">744</span>
 <span id="745">745</span>
 <span id="746">746</span>
 <span id="747">747</span>
 <span id="748">748</span>
 <span id="749">749</span>
 <span id="750">750</span>
 <span id="751">751</span>
 <span id="752">752</span>
 <span id="753">753</span>
 <span id="754">754</span>
 <span id="755">755</span>
 <span id="756">756</span>
 <span id="757">757</span>
 <span id="758">758</span>
 <span id="759">759</span>
 <span id="760">760</span>
 <span id="761">761</span>
 <span id="762">762</span>
 <span id="763">763</span>
 <span id="764">764</span>
 <span id="765">765</span>
 <span id="766">766</span>
 <span id="767">767</span>
 <span id="768">768</span>
 <span id="769">769</span>
 <span id="770">770</span>
 <span id="771">771</span>
 <span id="772">772</span>
 <span id="773">773</span>
 <span id="774">774</span>
 <span id="775">775</span>
 <span id="776">776</span>
 <span id="777">777</span>
 <span id="778">778</span>
 <span id="779">779</span>
 <span id="780">780</span>
 <span id="781">781</span>
 <span id="782">782</span>
 <span id="783">783</span>
 <span id="784">784</span>
 <span id="785">785</span>
 <span id="786">786</span>
 <span id="787">787</span>
 <span id="788">788</span>
 <span id="789">789</span>
 <span id="790">790</span>
 <span id="791">791</span>
 <span id="792">792</span>
 <span id="793">793</span>
 <span id="794">794</span>
 <span id="795">795</span>
 <span id="796">796</span>
 <span id="797">797</span>
 <span id="798">798</span>
 <span id="799">799</span>
 <span id="800">800</span>
 <span id="801">801</span>
 <span id="802">802</span>
 <span id="803">803</span>
 <span id="804">804</span>
 <span id="805">805</span>
 <span id="806">806</span>
 <span id="807">807</span>
 <span id="808">808</span>
 <span id="809">809</span>
 <span id="810">810</span>
 <span id="811">811</span>
 <span id="812">812</span>
 <span id="813">813</span>
 <span id="814">814</span>
 <span id="815">815</span>
 <span id="816">816</span>
 <span id="817">817</span>
 <span id="818">818</span>
 <span id="819">819</span>
 <span id="820">820</span>
 <span id="821">821</span>
 <span id="822">822</span>
 <span id="823">823</span>
 <span id="824">824</span>
 <span id="825">825</span>
 <span id="826">826</span>
 <span id="827">827</span>
 <span id="828">828</span>
 <span id="829">829</span>
 <span id="830">830</span>
 <span id="831">831</span>
 <span id="832">832</span>
 <span id="833">833</span>
 <span id="834">834</span>
 <span id="835">835</span>
 <span id="836">836</span>
 <span id="837">837</span>
 <span id="838">838</span>
 <span id="839">839</span>
 <span id="840">840</span>
 <span id="841">841</span>
 <span id="842">842</span>
 <span id="843">843</span>
 <span id="844">844</span>
 <span id="845">845</span>
 <span id="846">846</span>
 <span id="847">847</span>
 <span id="848">848</span>
 <span id="849">849</span>
 <span id="850">850</span>
 <span id="851">851</span>
 <span id="852">852</span>
 <span id="853">853</span>
 <span id="854">854</span>
 <span id="855">855</span>
 <span id="856">856</span>
 <span id="857">857</span>
 <span id="858">858</span>
 <span id="859">859</span>
 <span id="860">860</span>
 <span id="861">861</span>
 <span id="862">862</span>
 <span id="863">863</span>
 <span id="864">864</span>
 <span id="865">865</span>
 <span id="866">866</span>
 <span id="867">867</span>
 <span id="868">868</span>
 <span id="869">869</span>
 <span id="870">870</span>
 <span id="871">871</span>
 <span id="872">872</span>
 <span id="873">873</span>
 <span id="874">874</span>
 <span id="875">875</span>
 <span id="876">876</span>
 <span id="877">877</span>
 <span id="878">878</span>
 <span id="879">879</span>
 <span id="880">880</span>
 <span id="881">881</span>
 <span id="882">882</span>
 <span id="883">883</span>
 <span id="884">884</span>
 <span id="885">885</span>
 <span id="886">886</span>
 <span id="887">887</span>
 <span id="888">888</span>
 <span id="889">889</span>
 <span id="890">890</span>
 <span id="891">891</span>
 <span id="892">892</span>
 <span id="893">893</span>
 <span id="894">894</span>
 <span id="895">895</span>
 <span id="896">896</span>
 <span id="897">897</span>
 <span id="898">898</span>
 <span id="899">899</span>
 <span id="900">900</span>
 <span id="901">901</span>
 <span id="902">902</span>
 <span id="903">903</span>
 <span id="904">904</span>
 <span id="905">905</span>
 <span id="906">906</span>
 <span id="907">907</span>
 <span id="908">908</span>
 <span id="909">909</span>
 <span id="910">910</span>
 <span id="911">911</span>
 <span id="912">912</span>
 <span id="913">913</span>
 <span id="914">914</span>
 <span id="915">915</span>
 <span id="916">916</span>
 <span id="917">917</span>
 <span id="918">918</span>
 <span id="919">919</span>
 <span id="920">920</span>
 <span id="921">921</span>
 <span id="922">922</span>
 <span id="923">923</span>
 <span id="924">924</span>
 <span id="925">925</span>
 <span id="926">926</span>
 <span id="927">927</span>
 <span id="928">928</span>
 <span id="929">929</span>
 <span id="930">930</span>
 <span id="931">931</span>
 <span id="932">932</span>
 <span id="933">933</span>
 <span id="934">934</span>
 <span id="935">935</span>
 <span id="936">936</span>
 <span id="937">937</span>
 <span id="938">938</span>
 <span id="939">939</span>
 <span id="940">940</span>
 <span id="941">941</span>
 <span id="942">942</span>
 <span id="943">943</span>
 <span id="944">944</span>
 <span id="945">945</span>
 <span id="946">946</span>
 <span id="947">947</span>
 <span id="948">948</span>
 <span id="949">949</span>
 <span id="950">950</span>
 <span id="951">951</span>
 <span id="952">952</span>
 <span id="953">953</span>
 <span id="954">954</span>
 <span id="955">955</span>
 <span id="956">956</span>
 <span id="957">957</span>
 <span id="958">958</span>
 <span id="959">959</span>
 <span id="960">960</span>
 <span id="961">961</span>
 <span id="962">962</span>
 <span id="963">963</span>
 <span id="964">964</span>
 <span id="965">965</span>
 <span id="966">966</span>
 <span id="967">967</span>
 <span id="968">968</span>
 <span id="969">969</span>
 <span id="970">970</span>
 <span id="971">971</span>
 <span id="972">972</span>
 <span id="973">973</span>
 <span id="974">974</span>
 <span id="975">975</span>
 <span id="976">976</span>
 <span id="977">977</span>
 <span id="978">978</span>
 <span id="979">979</span>
 <span id="980">980</span>
 <span id="981">981</span>
 <span id="982">982</span>
 <span id="983">983</span>
 <span id="984">984</span>
 <span id="985">985</span>
 <span id="986">986</span>
 <span id="987">987</span>
 <span id="988">988</span>
 <span id="989">989</span>
 <span id="990">990</span>
 <span id="991">991</span>
 <span id="992">992</span>
 <span id="993">993</span>
 <span id="994">994</span>
 <span id="995">995</span>
 <span id="996">996</span>
 <span id="997">997</span>
 <span id="998">998</span>
 <span id="999">999</span>
 <span id="1000">1000</span>
 <span id="1001">1001</span>
 <span id="1002">1002</span>
 <span id="1003">1003</span>
 <span id="1004">1004</span>
 <span id="1005">1005</span>
 <span id="1006">1006</span>
 <span id="1007">1007</span>
 <span id="1008">1008</span>
 <span id="1009">1009</span>
 <span id="1010">1010</span>
 <span id="1011">1011</span>
 <span id="1012">1012</span>
 <span id="1013">1013</span>
 <span id="1014">1014</span>
 <span id="1015">1015</span>
 <span id="1016">1016</span>
 <span id="1017">1017</span>
 <span id="1018">1018</span>
 <span id="1019">1019</span>
 <span id="1020">1020</span>
 <span id="1021">1021</span>
 <span id="1022">1022</span>
 <span id="1023">1023</span>
 <span id="1024">1024</span>
 <span id="1025">1025</span>
 <span id="1026">1026</span>
 <span id="1027">1027</span>
 <span id="1028">1028</span>
 <span id="1029">1029</span>
 <span id="1030">1030</span>
 <span id="1031">1031</span>
 <span id="1032">1032</span>
 <span id="1033">1033</span>
 <span id="1034">1034</span>
 <span id="1035">1035</span>
 <span id="1036">1036</span>
 <span id="1037">1037</span>
 <span id="1038">1038</span>
 <span id="1039">1039</span>
 <span id="1040">1040</span>
 <span id="1041">1041</span>
 <span id="1042">1042</span>
 <span id="1043">1043</span>
 <span id="1044">1044</span>
 <span id="1045">1045</span>
 <span id="1046">1046</span>
 <span id="1047">1047</span>
 <span id="1048">1048</span>
 <span id="1049">1049</span>
 <span id="1050">1050</span>
 <span id="1051">1051</span>
 <span id="1052">1052</span>
 <span id="1053">1053</span>
 <span id="1054">1054</span>
 <span id="1055">1055</span>
 <span id="1056">1056</span>
 <span id="1057">1057</span>
 <span id="1058">1058</span>
 <span id="1059">1059</span>
 <span id="1060">1060</span>
 <span id="1061">1061</span>
 <span id="1062">1062</span>
 <span id="1063">1063</span>
 <span id="1064">1064</span>
 <span id="1065">1065</span>
 <span id="1066">1066</span>
 <span id="1067">1067</span>
 <span id="1068">1068</span>
 <span id="1069">1069</span>
 <span id="1070">1070</span>
 <span id="1071">1071</span>
 <span id="1072">1072</span>
 <span id="1073">1073</span>
 <span id="1074">1074</span>
 <span id="1075">1075</span>
 <span id="1076">1076</span>
 <span id="1077">1077</span>
 <span id="1078">1078</span>
 <span id="1079">1079</span>
 <span id="1080">1080</span>
 <span id="1081">1081</span>
 <span id="1082">1082</span>
 <span id="1083">1083</span>
 <span id="1084">1084</span>
 <span id="1085">1085</span>
 <span id="1086">1086</span>
 <span id="1087">1087</span>
 <span id="1088">1088</span>
 <span id="1089">1089</span>
 <span id="1090">1090</span>
 <span id="1091">1091</span>
 <span id="1092">1092</span>
 <span id="1093">1093</span>
 <span id="1094">1094</span>
 <span id="1095">1095</span>
 <span id="1096">1096</span>
 <span id="1097">1097</span>
 <span id="1098">1098</span>
 <span id="1099">1099</span>
 <span id="1100">1100</span>
 <span id="1101">1101</span>
 <span id="1102">1102</span>
 <span id="1103">1103</span>
 <span id="1104">1104</span>
 <span id="1105">1105</span>
 <span id="1106">1106</span>
 <span id="1107">1107</span>
 <span id="1108">1108</span>
 <span id="1109">1109</span>
 <span id="1110">1110</span>
 <span id="1111">1111</span>
 <span id="1112">1112</span>
 <span id="1113">1113</span>
 <span id="1114">1114</span>
 <span id="1115">1115</span>
 <span id="1116">1116</span>
 <span id="1117">1117</span>
 <span id="1118">1118</span>
 <span id="1119">1119</span>
 <span id="1120">1120</span>
 <span id="1121">1121</span>
 <span id="1122">1122</span>
 <span id="1123">1123</span>
 <span id="1124">1124</span>
 <span id="1125">1125</span>
 <span id="1126">1126</span>
 <span id="1127">1127</span>
 <span id="1128">1128</span>
 <span id="1129">1129</span>
 <span id="1130">1130</span>
 <span id="1131">1131</span>
 <span id="1132">1132</span>
 <span id="1133">1133</span>
 <span id="1134">1134</span>
 <span id="1135">1135</span>
 <span id="1136">1136</span>
 <span id="1137">1137</span>
 <span id="1138">1138</span>
 <span id="1139">1139</span>
 <span id="1140">1140</span>
 <span id="1141">1141</span>
 <span id="1142">1142</span>
 <span id="1143">1143</span>
 <span id="1144">1144</span>
 <span id="1145">1145</span>
 <span id="1146">1146</span>
 <span id="1147">1147</span>
 <span id="1148">1148</span>
 <span id="1149">1149</span>
 <span id="1150">1150</span>
 <span id="1151">1151</span>
 <span id="1152">1152</span>
 <span id="1153">1153</span>
 <span id="1154">1154</span>
 <span id="1155">1155</span>
 <span id="1156">1156</span>
 <span id="1157">1157</span>
 <span id="1158">1158</span>
 <span id="1159">1159</span>
 <span id="1160">1160</span>
 <span id="1161">1161</span>
 <span id="1162">1162</span>
 <span id="1163">1163</span>
 <span id="1164">1164</span>
 <span id="1165">1165</span>
 <span id="1166">1166</span>
 <span id="1167">1167</span>
 <span id="1168">1168</span>
 <span id="1169">1169</span>
 <span id="1170">1170</span>
 <span id="1171">1171</span>
 <span id="1172">1172</span>
 <span id="1173">1173</span>
 <span id="1174">1174</span>
 <span id="1175">1175</span>
 <span id="1176">1176</span>
 <span id="1177">1177</span>
 <span id="1178">1178</span>
 <span id="1179">1179</span>
 <span id="1180">1180</span>
 <span id="1181">1181</span>
 <span id="1182">1182</span>
 <span id="1183">1183</span>
 <span id="1184">1184</span>
 <span id="1185">1185</span>
 <span id="1186">1186</span>
 <span id="1187">1187</span>
 <span id="1188">1188</span>
 <span id="1189">1189</span>
 <span id="1190">1190</span>
 <span id="1191">1191</span>
 <span id="1192">1192</span>
 <span id="1193">1193</span>
 <span id="1194">1194</span>
 <span id="1195">1195</span>
 <span id="1196">1196</span>
 <span id="1197">1197</span>
 <span id="1198">1198</span>
 <span id="1199">1199</span>
 <span id="1200">1200</span>
 <span id="1201">1201</span>
 <span id="1202">1202</span>
 <span id="1203">1203</span>
 <span id="1204">1204</span>
 <span id="1205">1205</span>
 <span id="1206">1206</span>
 <span id="1207">1207</span>
 <span id="1208">1208</span>
 <span id="1209">1209</span>
 <span id="1210">1210</span>
 <span id="1211">1211</span>
 <span id="1212">1212</span>
 <span id="1213">1213</span>
 <span id="1214">1214</span>
 <span id="1215">1215</span>
 <span id="1216">1216</span>
 <span id="1217">1217</span>
 <span id="1218">1218</span>
 <span id="1219">1219</span>
 <span id="1220">1220</span>
 <span id="1221">1221</span>
 <span id="1222">1222</span>
 <span id="1223">1223</span>
 <span id="1224">1224</span>
 <span id="1225">1225</span>
 <span id="1226">1226</span>
 <span id="1227">1227</span>
 <span id="1228">1228</span>
 <span id="1229">1229</span>
 <span id="1230">1230</span>
 <span id="1231">1231</span>
 <span id="1232">1232</span>
 <span id="1233">1233</span>
 <span id="1234">1234</span>
 <span id="1235">1235</span>
 <span id="1236">1236</span>
 <span id="1237">1237</span>
 <span id="1238">1238</span>
 <span id="1239">1239</span>
 <span id="1240">1240</span>
 <span id="1241">1241</span>
 <span id="1242">1242</span>
 <span id="1243">1243</span>
 <span id="1244">1244</span>
 <span id="1245">1245</span>
 <span id="1246">1246</span>
 <span id="1247">1247</span>
 <span id="1248">1248</span>
 <span id="1249">1249</span>
 <span id="1250">1250</span>
 <span id="1251">1251</span>
 <span id="1252">1252</span>
 <span id="1253">1253</span>
 <span id="1254">1254</span>
 <span id="1255">1255</span>
 <span id="1256">1256</span>
 <span id="1257">1257</span>
 <span id="1258">1258</span>
 <span id="1259">1259</span>
 <span id="1260">1260</span>
 <span id="1261">1261</span>
 <span id="1262">1262</span>
 <span id="1263">1263</span>
 <span id="1264">1264</span>
 <span id="1265">1265</span>
 <span id="1266">1266</span>
 <span id="1267">1267</span>
 <span id="1268">1268</span>
 <span id="1269">1269</span>
 <span id="1270">1270</span>
 <span id="1271">1271</span>
 <span id="1272">1272</span>
 <span id="1273">1273</span>
 <span id="1274">1274</span>
 <span id="1275">1275</span>
 <span id="1276">1276</span>
 <span id="1277">1277</span>
 <span id="1278">1278</span>
 <span id="1279">1279</span>
 <span id="1280">1280</span>
 <span id="1281">1281</span>
 <span id="1282">1282</span>
 <span id="1283">1283</span>
 <span id="1284">1284</span>
 <span id="1285">1285</span>
 <span id="1286">1286</span>
 <span id="1287">1287</span>
 <span id="1288">1288</span>
 <span id="1289">1289</span>
 <span id="1290">1290</span>
 <span id="1291">1291</span>
 <span id="1292">1292</span>
 <span id="1293">1293</span>
 <span id="1294">1294</span>
 <span id="1295">1295</span>
 <span id="1296">1296</span>
 <span id="1297">1297</span>
 <span id="1298">1298</span>
 <span id="1299">1299</span>
 <span id="1300">1300</span>
 <span id="1301">1301</span>
 <span id="1302">1302</span>
 <span id="1303">1303</span>
 <span id="1304">1304</span>
 <span id="1305">1305</span>
 <span id="1306">1306</span>
 <span id="1307">1307</span>
 <span id="1308">1308</span>
 <span id="1309">1309</span>
 <span id="1310">1310</span>
 <span id="1311">1311</span>
 <span id="1312">1312</span>
 <span id="1313">1313</span>
 <span id="1314">1314</span>
 <span id="1315">1315</span>
 <span id="1316">1316</span>
 <span id="1317">1317</span>
 <span id="1318">1318</span>
 <span id="1319">1319</span>
 <span id="1320">1320</span>
 <span id="1321">1321</span>
 <span id="1322">1322</span>
 <span id="1323">1323</span>
 <span id="1324">1324</span>
 <span id="1325">1325</span>
 <span id="1326">1326</span>
 <span id="1327">1327</span>
 <span id="1328">1328</span>
 <span id="1329">1329</span>
 <span id="1330">1330</span>
 <span id="1331">1331</span>
 <span id="1332">1332</span>
 <span id="1333">1333</span>
 <span id="1334">1334</span>
 <span id="1335">1335</span>
 <span id="1336">1336</span>
 <span id="1337">1337</span>
 <span id="1338">1338</span>
 <span id="1339">1339</span>
 <span id="1340">1340</span>
 <span id="1341">1341</span>
 <span id="1342">1342</span>
 <span id="1343">1343</span>
 <span id="1344">1344</span>
 <span id="1345">1345</span>
 <span id="1346">1346</span>
 <span id="1347">1347</span>
 <span id="1348">1348</span>
 <span id="1349">1349</span>
 <span id="1350">1350</span>
 <span id="1351">1351</span>
 <span id="1352">1352</span>
 <span id="1353">1353</span>
 <span id="1354">1354</span>
 <span id="1355">1355</span>
 <span id="1356">1356</span>
 <span id="1357">1357</span>
 <span id="1358">1358</span>
 <span id="1359">1359</span>
 <span id="1360">1360</span>
 <span id="1361">1361</span>
 <span id="1362">1362</span>
 <span id="1363">1363</span>
 <span id="1364">1364</span>
 <span id="1365">1365</span>
 <span id="1366">1366</span>
 <span id="1367">1367</span>
 <span id="1368">1368</span>
 <span id="1369">1369</span>
 <span id="1370">1370</span>
 <span id="1371">1371</span>
 <span id="1372">1372</span>
 <span id="1373">1373</span>
 <span id="1374">1374</span>
 <span id="1375">1375</span>
 <span id="1376">1376</span>
 <span id="1377">1377</span>
 <span id="1378">1378</span>
 <span id="1379">1379</span>
 <span id="1380">1380</span>
 <span id="1381">1381</span>
 <span id="1382">1382</span>
 <span id="1383">1383</span>
 <span id="1384">1384</span>
 <span id="1385">1385</span>
 <span id="1386">1386</span>
 <span id="1387">1387</span>
 <span id="1388">1388</span>
 <span id="1389">1389</span>
 <span id="1390">1390</span>
 <span id="1391">1391</span>
 <span id="1392">1392</span>
 <span id="1393">1393</span>
 <span id="1394">1394</span>
 <span id="1395">1395</span>
 <span id="1396">1396</span>
 <span id="1397">1397</span>
 <span id="1398">1398</span>
 <span id="1399">1399</span>
 <span id="1400">1400</span>
 <span id="1401">1401</span>
 <span id="1402">1402</span>
 <span id="1403">1403</span>
 <span id="1404">1404</span>
 <span id="1405">1405</span>
 <span id="1406">1406</span>
 <span id="1407">1407</span>
 <span id="1408">1408</span>
 <span id="1409">1409</span>
 <span id="1410">1410</span>
 <span id="1411">1411</span>
 <span id="1412">1412</span>
 <span id="1413">1413</span>
 <span id="1414">1414</span>
 <span id="1415">1415</span>
 <span id="1416">1416</span>
 <span id="1417">1417</span>
 <span id="1418">1418</span>
 <span id="1419">1419</span>
 <span id="1420">1420</span>
 <span id="1421">1421</span>
 <span id="1422">1422</span>
 <span id="1423">1423</span>
 <span id="1424">1424</span>
 <span id="1425">1425</span>
 </pre><pre class="rust"><code><span class="kw">use </span>std::fmt;
 <span class="kw">use </span>std::io;
 <span class="kw">use </span>std::marker::PhantomData;
 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
 </span><span class="kw">use </span>std::time::Duration;

 <span class="kw">use </span>bytes::{Buf, Bytes};
 <span class="kw">use </span>http::header::{HeaderValue, CONNECTION};
 <span class="kw">use </span>http::{HeaderMap, Method, Version};
 <span class="kw">use </span>httparse::ParserConfig;
 <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite};
 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
 </span><span class="kw">use </span>tokio::time::Sleep;
 <span class="kw">use </span>tracing::{debug, error, trace};

 <span class="kw">use </span><span class="kw">super</span>::io::Buffered;
 <span class="kw">use super</span>::{Decoder, Encode, EncodedBuf, Encoder, Http1Transaction, ParseContext, Wants};
 <span class="kw">use </span><span class="kw">crate</span>::body::DecodedLength;
 <span class="kw">use </span><span class="kw">crate</span>::common::{task, Pin, Poll, Unpin};
 <span class="kw">use </span><span class="kw">crate</span>::headers::connection_keep_alive;
 <span class="kw">use </span><span class="kw">crate</span>::proto::{BodyLength, MessageHead};

 <span class="kw">const </span>H2_PREFACE: <span class="kw-2">&amp;</span>[u8] = <span class="string">b&quot;PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n&quot;</span>;

 <span class="doccomment">/// This handles a connection, which will have been established over an
 /// `AsyncRead + AsyncWrite` (like a socket), and will likely include multiple
 /// `Transaction`s over HTTP.
 ///
 /// The connection will determine when a message begins and ends as well as
 /// determine if this connection can be kept alive after the message,
 /// or if it is complete.
 </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Conn&lt;I, B, T&gt; {
     io: Buffered&lt;I, EncodedBuf&lt;B&gt;&gt;,
     state: State,
     _marker: PhantomData&lt;<span class="kw">fn</span>(T)&gt;,
 }

 <span class="kw">impl</span>&lt;I, B, T&gt; Conn&lt;I, B, T&gt;
 <span class="kw">where
     </span>I: AsyncRead + AsyncWrite + Unpin,
     B: Buf,
     T: Http1Transaction,
 {
     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(io: I) -&gt; Conn&lt;I, B, T&gt; {
         Conn {
             io: Buffered::new(io),
             state: State {
                 allow_half_close: <span class="bool-val">false</span>,
                 cached_headers: <span class="prelude-val">None</span>,
                 error: <span class="prelude-val">None</span>,
                 keep_alive: KA::Busy,
                 method: <span class="prelude-val">None</span>,
                 h1_parser_config: ParserConfig::default(),
                 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
                 </span>h1_header_read_timeout: <span class="prelude-val">None</span>,
                 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
                 </span>h1_header_read_timeout_fut: <span class="prelude-val">None</span>,
                 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
                 </span>h1_header_read_timeout_running: <span class="bool-val">false</span>,
                 preserve_header_case: <span class="bool-val">false</span>,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>preserve_header_order: <span class="bool-val">false</span>,
                 title_case_headers: <span class="bool-val">false</span>,
                 h09_responses: <span class="bool-val">false</span>,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>on_informational: <span class="prelude-val">None</span>,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>raw_headers: <span class="bool-val">false</span>,
                 notify_read: <span class="bool-val">false</span>,
                 reading: Reading::Init,
                 writing: Writing::Init,
                 upgrade: <span class="prelude-val">None</span>,
                 <span class="comment">// We assume a modern world where the remote speaks HTTP/1.1.
                 // If they tell us otherwise, we&#39;ll downgrade in `read_head`.
                 </span>version: Version::HTTP_11,
             },
             _marker: PhantomData,
         }
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;server&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_flush_pipeline(<span class="kw-2">&amp;mut </span><span class="self">self</span>, enabled: bool) {
         <span class="self">self</span>.io.set_flush_pipeline(enabled);
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_write_strategy_queue(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.io.set_write_strategy_queue();
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_max_buf_size(<span class="kw-2">&amp;mut </span><span class="self">self</span>, max: usize) {
         <span class="self">self</span>.io.set_max_buf_size(max);
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;client&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_read_buf_exact_size(<span class="kw-2">&amp;mut </span><span class="self">self</span>, sz: usize) {
         <span class="self">self</span>.io.set_read_buf_exact_size(sz);
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_write_strategy_flatten(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.io.set_write_strategy_flatten();
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;client&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_h1_parser_config(<span class="kw-2">&amp;mut </span><span class="self">self</span>, parser_config: ParserConfig) {
         <span class="self">self</span>.state.h1_parser_config = parser_config;
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_title_case_headers(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.title_case_headers = <span class="bool-val">true</span>;
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_preserve_header_case(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.preserve_header_case = <span class="bool-val">true</span>;
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_preserve_header_order(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.preserve_header_order = <span class="bool-val">true</span>;
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;client&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_h09_responses(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.h09_responses = <span class="bool-val">true</span>;
     }

     <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_http1_header_read_timeout(<span class="kw-2">&amp;mut </span><span class="self">self</span>, val: Duration) {
         <span class="self">self</span>.state.h1_header_read_timeout = <span class="prelude-val">Some</span>(val);
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;server&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_allow_half_close(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.allow_half_close = <span class="bool-val">true</span>;
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_raw_headers(<span class="kw-2">&amp;mut </span><span class="self">self</span>, enabled: bool) {
         <span class="self">self</span>.state.raw_headers = enabled;
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>into_inner(<span class="self">self</span>) -&gt; (I, Bytes) {
         <span class="self">self</span>.io.into_inner()
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>pending_upgrade(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw">crate</span>::upgrade::Pending&gt; {
         <span class="self">self</span>.state.upgrade.take()
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_read_closed(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="self">self</span>.state.is_read_closed()
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_write_closed(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="self">self</span>.state.is_write_closed()
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>can_read_head(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="kw">if </span>!<span class="macro">matches!</span>(<span class="self">self</span>.state.reading, Reading::Init) {
             <span class="kw">return </span><span class="bool-val">false</span>;
         }

         <span class="kw">if </span>T::should_read_first() {
             <span class="kw">return </span><span class="bool-val">true</span>;
         }

         !<span class="macro">matches!</span>(<span class="self">self</span>.state.writing, Writing::Init)
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>can_read_body(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="kw">match </span><span class="self">self</span>.state.reading {
             Reading::Body(..) | Reading::Continue(..) =&gt; <span class="bool-val">true</span>,
             <span class="kw">_ </span>=&gt; <span class="bool-val">false</span>,
         }
     }

     <span class="kw">fn </span>should_error_on_eof(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="comment">// If we&#39;re idle, it&#39;s probably just the connection closing gracefully.
         </span>T::should_error_on_parse_eof() &amp;&amp; !<span class="self">self</span>.state.is_idle()
     }

     <span class="kw">fn </span>has_h2_prefix(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="kw">let </span>read_buf = <span class="self">self</span>.io.read_buf();
         read_buf.len() &gt;= <span class="number">24 </span>&amp;&amp; read_buf[..<span class="number">24</span>] == <span class="kw-2">*</span>H2_PREFACE
     }

     <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>poll_read_head(
         <span class="kw-2">&amp;mut </span><span class="self">self</span>,
         cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;,
     ) -&gt; Poll&lt;<span class="prelude-ty">Option</span>&lt;<span class="kw">crate</span>::Result&lt;(MessageHead&lt;T::Incoming&gt;, DecodedLength, Wants)&gt;&gt;&gt; {
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.can_read_head());
         <span class="macro">trace!</span>(<span class="string">&quot;Conn::read_head&quot;</span>);

         <span class="kw">let </span>msg = <span class="kw">match </span><span class="macro">ready!</span>(<span class="self">self</span>.io.parse::&lt;T&gt;(
             cx,
             ParseContext {
                 cached_headers: <span class="kw-2">&amp;mut </span><span class="self">self</span>.state.cached_headers,
                 req_method: <span class="kw-2">&amp;mut </span><span class="self">self</span>.state.method,
                 h1_parser_config: <span class="self">self</span>.state.h1_parser_config.clone(),
                 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
                 </span>h1_header_read_timeout: <span class="self">self</span>.state.h1_header_read_timeout,
                 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
                 </span>h1_header_read_timeout_fut: <span class="kw-2">&amp;mut </span><span class="self">self</span>.state.h1_header_read_timeout_fut,
                 <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
                 </span>h1_header_read_timeout_running: <span class="kw-2">&amp;mut </span><span class="self">self</span>.state.h1_header_read_timeout_running,
                 preserve_header_case: <span class="self">self</span>.state.preserve_header_case,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>preserve_header_order: <span class="self">self</span>.state.preserve_header_order,
                 h09_responses: <span class="self">self</span>.state.h09_responses,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>on_informational: <span class="kw-2">&amp;mut </span><span class="self">self</span>.state.on_informational,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>raw_headers: <span class="self">self</span>.state.raw_headers,
             }
         )) {
             <span class="prelude-val">Ok</span>(msg) =&gt; msg,
             <span class="prelude-val">Err</span>(e) =&gt; <span class="kw">return </span><span class="self">self</span>.on_read_head_error(e),
         };

         <span class="comment">// Note: don&#39;t deconstruct `msg` into local variables, it appears
         // the optimizer doesn&#39;t remove the extra copies.

         </span><span class="macro">debug!</span>(<span class="string">&quot;incoming body is {}&quot;</span>, msg.decode);

         <span class="comment">// Prevent accepting HTTP/0.9 responses after the initial one, if any.
         </span><span class="self">self</span>.state.h09_responses = <span class="bool-val">false</span>;

         <span class="comment">// Drop any OnInformational callbacks, we&#39;re done there!
         </span><span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
         </span>{
             <span class="self">self</span>.state.on_informational = <span class="prelude-val">None</span>;
         }

         <span class="self">self</span>.state.busy();
         <span class="self">self</span>.state.keep_alive &amp;= msg.keep_alive;
         <span class="self">self</span>.state.version = msg.head.version;

         <span class="kw">let </span><span class="kw-2">mut </span>wants = <span class="kw">if </span>msg.wants_upgrade {
             Wants::UPGRADE
         } <span class="kw">else </span>{
             Wants::EMPTY
         };

         <span class="kw">if </span>msg.decode == DecodedLength::ZERO {
             <span class="kw">if </span>msg.expect_continue {
                 <span class="macro">debug!</span>(<span class="string">&quot;ignoring expect-continue since body is empty&quot;</span>);
             }
             <span class="self">self</span>.state.reading = Reading::KeepAlive;
             <span class="kw">if </span>!T::should_read_first() {
                 <span class="self">self</span>.try_keep_alive(cx);
             }
         } <span class="kw">else if </span>msg.expect_continue {
             <span class="self">self</span>.state.reading = Reading::Continue(Decoder::new(msg.decode));
             wants = wants.add(Wants::EXPECT);
         } <span class="kw">else </span>{
             <span class="self">self</span>.state.reading = Reading::Body(Decoder::new(msg.decode));
         }

         Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>((msg.head, msg.decode, wants))))
     }

     <span class="kw">fn </span>on_read_head_error&lt;Z&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, e: <span class="kw">crate</span>::Error) -&gt; Poll&lt;<span class="prelude-ty">Option</span>&lt;<span class="kw">crate</span>::Result&lt;Z&gt;&gt;&gt; {
         <span class="comment">// If we are currently waiting on a message, then an empty
         // message should be reported as an error. If not, it is just
         // the connection closing gracefully.
         </span><span class="kw">let </span>must_error = <span class="self">self</span>.should_error_on_eof();
         <span class="self">self</span>.close_read();
         <span class="self">self</span>.io.consume_leading_lines();
         <span class="kw">let </span>was_mid_parse = e.is_parse() || !<span class="self">self</span>.io.read_buf().is_empty();
         <span class="kw">if </span>was_mid_parse || must_error {
             <span class="comment">// We check if the buf contains the h2 Preface
             </span><span class="macro">debug!</span>(
                 <span class="string">&quot;parse error ({}) with {} bytes&quot;</span>,
                 e,
                 <span class="self">self</span>.io.read_buf().len()
             );
             <span class="kw">match </span><span class="self">self</span>.on_parse_error(e) {
                 <span class="prelude-val">Ok</span>(()) =&gt; Poll::Pending, <span class="comment">// XXX: wat?
                 </span><span class="prelude-val">Err</span>(e) =&gt; Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Err</span>(e))),
             }
         } <span class="kw">else </span>{
             <span class="macro">debug!</span>(<span class="string">&quot;read eof&quot;</span>);
             <span class="self">self</span>.close_write();
             Poll::Ready(<span class="prelude-val">None</span>)
         }
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>poll_read_body(
         <span class="kw-2">&amp;mut </span><span class="self">self</span>,
         cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;,
     ) -&gt; Poll&lt;<span class="prelude-ty">Option</span>&lt;io::Result&lt;Bytes&gt;&gt;&gt; {
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.can_read_body());

         <span class="kw">let </span>(reading, ret) = <span class="kw">match </span><span class="self">self</span>.state.reading {
             Reading::Body(<span class="kw-2">ref mut </span>decoder) =&gt; {
                 <span class="kw">match </span><span class="macro">ready!</span>(decoder.decode(cx, <span class="kw-2">&amp;mut </span><span class="self">self</span>.io)) {
                     <span class="prelude-val">Ok</span>(slice) =&gt; {
                         <span class="kw">let </span>(reading, chunk) = <span class="kw">if </span>decoder.is_eof() {
                             <span class="macro">debug!</span>(<span class="string">&quot;incoming body completed&quot;</span>);
                             (
                                 Reading::KeepAlive,
                                 <span class="kw">if </span>!slice.is_empty() {
                                     <span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(slice))
                                 } <span class="kw">else </span>{
                                     <span class="prelude-val">None
                                 </span>},
                             )
                         } <span class="kw">else if </span>slice.is_empty() {
                             <span class="macro">error!</span>(<span class="string">&quot;incoming body unexpectedly ended&quot;</span>);
                             <span class="comment">// This should be unreachable, since all 3 decoders
                             // either set eof=true or return an Err when reading
                             // an empty slice...
                             </span>(Reading::Closed, <span class="prelude-val">None</span>)
                         } <span class="kw">else </span>{
                             <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(slice)));
                         };
                         (reading, Poll::Ready(chunk))
                     }
                     <span class="prelude-val">Err</span>(e) =&gt; {
                         <span class="macro">debug!</span>(<span class="string">&quot;incoming body decode error: {}&quot;</span>, e);
                         (Reading::Closed, Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Err</span>(e))))
                     }
                 }
             }
             Reading::Continue(<span class="kw-2">ref </span>decoder) =&gt; {
                 <span class="comment">// Write the 100 Continue if not already responded...
                 </span><span class="kw">if let </span>Writing::Init = <span class="self">self</span>.state.writing {
                     <span class="macro">trace!</span>(<span class="string">&quot;automatically sending 100 Continue&quot;</span>);
                     <span class="kw">let </span>cont = <span class="string">b&quot;HTTP/1.1 100 Continue\r\n\r\n&quot;</span>;
                     <span class="self">self</span>.io.headers_buf().extend_from_slice(cont);
                 }

                 <span class="comment">// And now recurse once in the Reading::Body state...
                 </span><span class="self">self</span>.state.reading = Reading::Body(decoder.clone());
                 <span class="kw">return </span><span class="self">self</span>.poll_read_body(cx);
             }
             <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(<span class="string">&quot;poll_read_body invalid state: {:?}&quot;</span>, <span class="self">self</span>.state.reading),
         };

         <span class="self">self</span>.state.reading = reading;
         <span class="self">self</span>.try_keep_alive(cx);
         ret
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wants_read_again(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; bool {
         <span class="kw">let </span>ret = <span class="self">self</span>.state.notify_read;
         <span class="self">self</span>.state.notify_read = <span class="bool-val">false</span>;
         ret
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>poll_read_keep_alive(
         <span class="kw-2">&amp;mut </span><span class="self">self</span>,
         cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;,
     ) -&gt; Poll&lt;<span class="kw">crate</span>::Result&lt;()&gt;&gt; {
         <span class="macro">debug_assert!</span>(!<span class="self">self</span>.can_read_head() &amp;&amp; !<span class="self">self</span>.can_read_body());

         <span class="kw">if </span><span class="self">self</span>.is_read_closed() {
             Poll::Pending
         } <span class="kw">else if </span><span class="self">self</span>.is_mid_message() {
             <span class="self">self</span>.mid_message_detect_eof(cx)
         } <span class="kw">else </span>{
             <span class="self">self</span>.require_empty_read(cx)
         }
     }

     <span class="kw">fn </span>is_mid_message(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         !<span class="macro">matches!</span>(
             (<span class="kw-2">&amp;</span><span class="self">self</span>.state.reading, <span class="kw-2">&amp;</span><span class="self">self</span>.state.writing),
             (<span class="kw-2">&amp;</span>Reading::Init, <span class="kw-2">&amp;</span>Writing::Init)
         )
     }

     <span class="comment">// This will check to make sure the io object read is empty.
     //
     // This should only be called for Clients wanting to enter the idle
     // state.
     </span><span class="kw">fn </span>require_empty_read(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; Poll&lt;<span class="kw">crate</span>::Result&lt;()&gt;&gt; {
         <span class="macro">debug_assert!</span>(!<span class="self">self</span>.can_read_head() &amp;&amp; !<span class="self">self</span>.can_read_body() &amp;&amp; !<span class="self">self</span>.is_read_closed());
         <span class="macro">debug_assert!</span>(!<span class="self">self</span>.is_mid_message());
         <span class="macro">debug_assert!</span>(T::is_client());

         <span class="kw">if </span>!<span class="self">self</span>.io.read_buf().is_empty() {
             <span class="macro">debug!</span>(<span class="string">&quot;received an unexpected {} bytes&quot;</span>, <span class="self">self</span>.io.read_buf().len());
             <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_unexpected_message()));
         }

         <span class="kw">let </span>num_read = <span class="macro">ready!</span>(<span class="self">self</span>.force_io_read(cx)).map_err(<span class="kw">crate</span>::Error::new_io)<span class="question-mark">?</span>;

         <span class="kw">if </span>num_read == <span class="number">0 </span>{
             <span class="kw">let </span>ret = <span class="kw">if </span><span class="self">self</span>.should_error_on_eof() {
                 <span class="macro">trace!</span>(<span class="string">&quot;found unexpected EOF on busy connection: {:?}&quot;</span>, <span class="self">self</span>.state);
                 Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_incomplete()))
             } <span class="kw">else </span>{
                 <span class="macro">trace!</span>(<span class="string">&quot;found EOF on idle connection, closing&quot;</span>);
                 Poll::Ready(<span class="prelude-val">Ok</span>(()))
             };

             <span class="comment">// order is important: should_error needs state BEFORE close_read
             </span><span class="self">self</span>.state.close_read();
             <span class="kw">return </span>ret;
         }

         <span class="macro">debug!</span>(
             <span class="string">&quot;received unexpected {} bytes on an idle connection&quot;</span>,
             num_read
         );
         Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_unexpected_message()))
     }

     <span class="kw">fn </span>mid_message_detect_eof(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; Poll&lt;<span class="kw">crate</span>::Result&lt;()&gt;&gt; {
         <span class="macro">debug_assert!</span>(!<span class="self">self</span>.can_read_head() &amp;&amp; !<span class="self">self</span>.can_read_body() &amp;&amp; !<span class="self">self</span>.is_read_closed());
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.is_mid_message());

         <span class="kw">if </span><span class="self">self</span>.state.allow_half_close || !<span class="self">self</span>.io.read_buf().is_empty() {
             <span class="kw">return </span>Poll::Pending;
         }

         <span class="kw">let </span>num_read = <span class="macro">ready!</span>(<span class="self">self</span>.force_io_read(cx)).map_err(<span class="kw">crate</span>::Error::new_io)<span class="question-mark">?</span>;

         <span class="kw">if </span>num_read == <span class="number">0 </span>{
             <span class="macro">trace!</span>(<span class="string">&quot;found unexpected EOF on busy connection: {:?}&quot;</span>, <span class="self">self</span>.state);
             <span class="self">self</span>.state.close_read();
             Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_incomplete()))
         } <span class="kw">else </span>{
             Poll::Ready(<span class="prelude-val">Ok</span>(()))
         }
     }

     <span class="kw">fn </span>force_io_read(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; Poll&lt;io::Result&lt;usize&gt;&gt; {
         <span class="macro">debug_assert!</span>(!<span class="self">self</span>.state.is_read_closed());

         <span class="kw">let </span>result = <span class="macro">ready!</span>(<span class="self">self</span>.io.poll_read_from_io(cx));
         Poll::Ready(result.map_err(|e| {
             <span class="macro">trace!</span>(<span class="string">&quot;force_io_read; io error = {:?}&quot;</span>, e);
             <span class="self">self</span>.state.close();
             e
         }))
     }

     <span class="kw">fn </span>maybe_notify(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) {
         <span class="comment">// its possible that we returned NotReady from poll() without having
         // exhausted the underlying Io. We would have done this when we
         // determined we couldn&#39;t keep reading until we knew how writing
         // would finish.

         </span><span class="kw">match </span><span class="self">self</span>.state.reading {
             Reading::Continue(..) | Reading::Body(..) | Reading::KeepAlive | Reading::Closed =&gt; {
                 <span class="kw">return
             </span>}
             Reading::Init =&gt; (),
         };

         <span class="kw">match </span><span class="self">self</span>.state.writing {
             Writing::Body(..) =&gt; <span class="kw">return</span>,
             Writing::Init | Writing::KeepAlive | Writing::Closed =&gt; (),
         }

         <span class="kw">if </span>!<span class="self">self</span>.io.is_read_blocked() {
             <span class="kw">if </span><span class="self">self</span>.io.read_buf().is_empty() {
                 <span class="kw">match </span><span class="self">self</span>.io.poll_read_from_io(cx) {
                     Poll::Ready(<span class="prelude-val">Ok</span>(n)) =&gt; {
                         <span class="kw">if </span>n == <span class="number">0 </span>{
                             <span class="macro">trace!</span>(<span class="string">&quot;maybe_notify; read eof&quot;</span>);
                             <span class="kw">if </span><span class="self">self</span>.state.is_idle() {
                                 <span class="self">self</span>.state.close();
                             } <span class="kw">else </span>{
                                 <span class="self">self</span>.close_read()
                             }
                             <span class="kw">return</span>;
                         }
                     }
                     Poll::Pending =&gt; {
                         <span class="macro">trace!</span>(<span class="string">&quot;maybe_notify; read_from_io blocked&quot;</span>);
                         <span class="kw">return</span>;
                     }
                     Poll::Ready(<span class="prelude-val">Err</span>(e)) =&gt; {
                         <span class="macro">trace!</span>(<span class="string">&quot;maybe_notify; read_from_io error: {}&quot;</span>, e);
                         <span class="self">self</span>.state.close();
                         <span class="self">self</span>.state.error = <span class="prelude-val">Some</span>(<span class="kw">crate</span>::Error::new_io(e));
                     }
                 }
             }
             <span class="self">self</span>.state.notify_read = <span class="bool-val">true</span>;
         }
     }

     <span class="kw">fn </span>try_keep_alive(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) {
         <span class="self">self</span>.state.try_keep_alive::&lt;T&gt;();
         <span class="self">self</span>.maybe_notify(cx);
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>can_write_head(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="kw">if </span>!T::should_read_first() &amp;&amp; <span class="macro">matches!</span>(<span class="self">self</span>.state.reading, Reading::Closed) {
             <span class="kw">return </span><span class="bool-val">false</span>;
         }

         <span class="kw">match </span><span class="self">self</span>.state.writing {
             Writing::Init =&gt; <span class="self">self</span>.io.can_headers_buf(),
             <span class="kw">_ </span>=&gt; <span class="bool-val">false</span>,
         }
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>can_write_body(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="kw">match </span><span class="self">self</span>.state.writing {
             Writing::Body(..) =&gt; <span class="bool-val">true</span>,
             Writing::Init | Writing::KeepAlive | Writing::Closed =&gt; <span class="bool-val">false</span>,
         }
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>can_buffer_body(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="self">self</span>.io.can_buffer()
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write_head(<span class="kw-2">&amp;mut </span><span class="self">self</span>, head: MessageHead&lt;T::Outgoing&gt;, body: <span class="prelude-ty">Option</span>&lt;BodyLength&gt;) {
         <span class="kw">if let </span><span class="prelude-val">Some</span>(encoder) = <span class="self">self</span>.encode_head(head, body) {
             <span class="self">self</span>.state.writing = <span class="kw">if </span>!encoder.is_eof() {
                 Writing::Body(encoder)
             } <span class="kw">else if </span>encoder.is_last() {
                 Writing::Closed
             } <span class="kw">else </span>{
                 Writing::KeepAlive
             };
         }
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write_full_msg(<span class="kw-2">&amp;mut </span><span class="self">self</span>, head: MessageHead&lt;T::Outgoing&gt;, body: B) {
         <span class="kw">if let </span><span class="prelude-val">Some</span>(encoder) =
             <span class="self">self</span>.encode_head(head, <span class="prelude-val">Some</span>(BodyLength::Known(body.remaining() <span class="kw">as </span>u64)))
         {
             <span class="kw">let </span>is_last = encoder.is_last();
             <span class="comment">// Make sure we don&#39;t write a body if we weren&#39;t actually allowed
             // to do so, like because its a HEAD request.
             </span><span class="kw">if </span>!encoder.is_eof() {
                 encoder.danger_full_buf(body, <span class="self">self</span>.io.write_buf());
             }
             <span class="self">self</span>.state.writing = <span class="kw">if </span>is_last {
                 Writing::Closed
             } <span class="kw">else </span>{
                 Writing::KeepAlive
             }
         }
     }

     <span class="kw">fn </span>encode_head(
         <span class="kw-2">&amp;mut </span><span class="self">self</span>,
         <span class="kw-2">mut </span>head: MessageHead&lt;T::Outgoing&gt;,
         body: <span class="prelude-ty">Option</span>&lt;BodyLength&gt;,
     ) -&gt; <span class="prelude-ty">Option</span>&lt;Encoder&gt; {
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.can_write_head());

         <span class="kw">if </span>!T::should_read_first() {
             <span class="self">self</span>.state.busy();
         }

         <span class="self">self</span>.enforce_version(<span class="kw-2">&amp;mut </span>head);

         <span class="kw">let </span>buf = <span class="self">self</span>.io.headers_buf();
         <span class="kw">match </span><span class="kw">super</span>::role::encode_headers::&lt;T&gt;(
             Encode {
                 head: <span class="kw-2">&amp;mut </span>head,
                 body,
                 <span class="attribute">#[cfg(feature = <span class="string">&quot;server&quot;</span>)]
                 </span>keep_alive: <span class="self">self</span>.state.wants_keep_alive(),
                 req_method: <span class="kw-2">&amp;mut </span><span class="self">self</span>.state.method,
                 title_case_headers: <span class="self">self</span>.state.title_case_headers,
             },
             buf,
         ) {
             <span class="prelude-val">Ok</span>(encoder) =&gt; {
                 <span class="macro">debug_assert!</span>(<span class="self">self</span>.state.cached_headers.is_none());
                 <span class="macro">debug_assert!</span>(head.headers.is_empty());
                 <span class="self">self</span>.state.cached_headers = <span class="prelude-val">Some</span>(head.headers);

                 <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
                 </span>{
                     <span class="self">self</span>.state.on_informational =
                         head.extensions.remove::&lt;<span class="kw">crate</span>::ffi::OnInformational&gt;();
                 }

                 <span class="prelude-val">Some</span>(encoder)
             }
             <span class="prelude-val">Err</span>(err) =&gt; {
                 <span class="self">self</span>.state.error = <span class="prelude-val">Some</span>(err);
                 <span class="self">self</span>.state.writing = Writing::Closed;
                 <span class="prelude-val">None
             </span>}
         }
     }

     <span class="comment">// Fix keep-alive when Connection: keep-alive header is not present
     </span><span class="kw">fn </span>fix_keep_alive(<span class="kw-2">&amp;mut </span><span class="self">self</span>, head: <span class="kw-2">&amp;mut </span>MessageHead&lt;T::Outgoing&gt;) {
         <span class="kw">let </span>outgoing_is_keep_alive = head
             .headers
             .get(CONNECTION)
             .map(connection_keep_alive)
             .unwrap_or(<span class="bool-val">false</span>);

         <span class="kw">if </span>!outgoing_is_keep_alive {
             <span class="kw">match </span>head.version {
                 <span class="comment">// If response is version 1.0 and keep-alive is not present in the response,
                 // disable keep-alive so the server closes the connection
                 </span>Version::HTTP_10 =&gt; <span class="self">self</span>.state.disable_keep_alive(),
                 <span class="comment">// If response is version 1.1 and keep-alive is wanted, add
                 // Connection: keep-alive header when not present
                 </span>Version::HTTP_11 =&gt; {
                     <span class="kw">if </span><span class="self">self</span>.state.wants_keep_alive() {
                         head.headers
                             .insert(CONNECTION, HeaderValue::from_static(<span class="string">&quot;keep-alive&quot;</span>));
                     }
                 }
                 <span class="kw">_ </span>=&gt; (),
             }
         }
     }

     <span class="comment">// If we know the remote speaks an older version, we try to fix up any messages
     // to work with our older peer.
     </span><span class="kw">fn </span>enforce_version(<span class="kw-2">&amp;mut </span><span class="self">self</span>, head: <span class="kw-2">&amp;mut </span>MessageHead&lt;T::Outgoing&gt;) {
         <span class="kw">if let </span>Version::HTTP_10 = <span class="self">self</span>.state.version {
             <span class="comment">// Fixes response or connection when keep-alive header is not present
             </span><span class="self">self</span>.fix_keep_alive(head);
             <span class="comment">// If the remote only knows HTTP/1.0, we should force ourselves
             // to do only speak HTTP/1.0 as well.
             </span>head.version = Version::HTTP_10;
         }
         <span class="comment">// If the remote speaks HTTP/1.1, then it *should* be fine with
         // both HTTP/1.0 and HTTP/1.1 from us. So again, we just let
         // the user&#39;s headers be.
     </span>}

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write_body(<span class="kw-2">&amp;mut </span><span class="self">self</span>, chunk: B) {
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.can_write_body() &amp;&amp; <span class="self">self</span>.can_buffer_body());
         <span class="comment">// empty chunks should be discarded at Dispatcher level
         </span><span class="macro">debug_assert!</span>(chunk.remaining() != <span class="number">0</span>);

         <span class="kw">let </span>state = <span class="kw">match </span><span class="self">self</span>.state.writing {
             Writing::Body(<span class="kw-2">ref mut </span>encoder) =&gt; {
                 <span class="self">self</span>.io.buffer(encoder.encode(chunk));

                 <span class="kw">if </span>!encoder.is_eof() {
                     <span class="kw">return</span>;
                 }

                 <span class="kw">if </span>encoder.is_last() {
                     Writing::Closed
                 } <span class="kw">else </span>{
                     Writing::KeepAlive
                 }
             }
             <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(<span class="string">&quot;write_body invalid state: {:?}&quot;</span>, <span class="self">self</span>.state.writing),
         };

         <span class="self">self</span>.state.writing = state;
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write_body_and_end(<span class="kw-2">&amp;mut </span><span class="self">self</span>, chunk: B) {
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.can_write_body() &amp;&amp; <span class="self">self</span>.can_buffer_body());
         <span class="comment">// empty chunks should be discarded at Dispatcher level
         </span><span class="macro">debug_assert!</span>(chunk.remaining() != <span class="number">0</span>);

         <span class="kw">let </span>state = <span class="kw">match </span><span class="self">self</span>.state.writing {
             Writing::Body(<span class="kw-2">ref </span>encoder) =&gt; {
                 <span class="kw">let </span>can_keep_alive = encoder.encode_and_end(chunk, <span class="self">self</span>.io.write_buf());
                 <span class="kw">if </span>can_keep_alive {
                     Writing::KeepAlive
                 } <span class="kw">else </span>{
                     Writing::Closed
                 }
             }
             <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(<span class="string">&quot;write_body invalid state: {:?}&quot;</span>, <span class="self">self</span>.state.writing),
         };

         <span class="self">self</span>.state.writing = state;
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>end_body(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw">crate</span>::Result&lt;()&gt; {
         <span class="macro">debug_assert!</span>(<span class="self">self</span>.can_write_body());

         <span class="kw">let </span>encoder = <span class="kw">match </span><span class="self">self</span>.state.writing {
             Writing::Body(<span class="kw-2">ref mut </span>enc) =&gt; enc,
             <span class="kw">_ </span>=&gt; <span class="kw">return </span><span class="prelude-val">Ok</span>(()),
         };

         <span class="comment">// end of stream, that means we should try to eof
         </span><span class="kw">match </span>encoder.end() {
             <span class="prelude-val">Ok</span>(end) =&gt; {
                 <span class="kw">if let </span><span class="prelude-val">Some</span>(end) = end {
                     <span class="self">self</span>.io.buffer(end);
                 }

                 <span class="self">self</span>.state.writing = <span class="kw">if </span>encoder.is_last() || encoder.is_close_delimited() {
                     Writing::Closed
                 } <span class="kw">else </span>{
                     Writing::KeepAlive
                 };

                 <span class="prelude-val">Ok</span>(())
             }
             <span class="prelude-val">Err</span>(not_eof) =&gt; {
                 <span class="self">self</span>.state.writing = Writing::Closed;
                 <span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_body_write_aborted().with(not_eof))
             }
         }
     }

     <span class="comment">// When we get a parse error, depending on what side we are, we might be able
     // to write a response before closing the connection.
     //
     // - Client: there is nothing we can do
     // - Server: if Response hasn&#39;t been written yet, we can send a 4xx response
     </span><span class="kw">fn </span>on_parse_error(<span class="kw-2">&amp;mut </span><span class="self">self</span>, err: <span class="kw">crate</span>::Error) -&gt; <span class="kw">crate</span>::Result&lt;()&gt; {
         <span class="kw">if let </span>Writing::Init = <span class="self">self</span>.state.writing {
             <span class="kw">if </span><span class="self">self</span>.has_h2_prefix() {
                 <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="kw">crate</span>::Error::new_version_h2());
             }
             <span class="kw">if let </span><span class="prelude-val">Some</span>(msg) = T::on_error(<span class="kw-2">&amp;</span>err) {
                 <span class="comment">// Drop the cached headers so as to not trigger a debug
                 // assert in `write_head`...
                 </span><span class="self">self</span>.state.cached_headers.take();
                 <span class="self">self</span>.write_head(msg, <span class="prelude-val">None</span>);
                 <span class="self">self</span>.state.error = <span class="prelude-val">Some</span>(err);
                 <span class="kw">return </span><span class="prelude-val">Ok</span>(());
             }
         }

         <span class="comment">// fallback is pass the error back up
         </span><span class="prelude-val">Err</span>(err)
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>poll_flush(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; Poll&lt;io::Result&lt;()&gt;&gt; {
         <span class="macro">ready!</span>(Pin::new(<span class="kw-2">&amp;mut </span><span class="self">self</span>.io).poll_flush(cx))<span class="question-mark">?</span>;
         <span class="self">self</span>.try_keep_alive(cx);
         <span class="macro">trace!</span>(<span class="string">&quot;flushed({}): {:?}&quot;</span>, T::LOG, <span class="self">self</span>.state);
         Poll::Ready(<span class="prelude-val">Ok</span>(()))
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>poll_shutdown(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; Poll&lt;io::Result&lt;()&gt;&gt; {
         <span class="kw">match </span><span class="macro">ready!</span>(Pin::new(<span class="self">self</span>.io.io_mut()).poll_shutdown(cx)) {
             <span class="prelude-val">Ok</span>(()) =&gt; {
                 <span class="macro">trace!</span>(<span class="string">&quot;shut down IO complete&quot;</span>);
                 Poll::Ready(<span class="prelude-val">Ok</span>(()))
             }
             <span class="prelude-val">Err</span>(e) =&gt; {
                 <span class="macro">debug!</span>(<span class="string">&quot;error shutting down IO: {}&quot;</span>, e);
                 Poll::Ready(<span class="prelude-val">Err</span>(e))
             }
         }
     }

     <span class="doccomment">/// If the read side can be cheaply drained, do so. Otherwise, close.
     </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>poll_drain_or_close_read(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cx: <span class="kw-2">&amp;mut </span>task::Context&lt;<span class="lifetime">&#39;_</span>&gt;) {
         <span class="kw">if let </span>Reading::Continue(<span class="kw-2">ref </span>decoder) = <span class="self">self</span>.state.reading {
             <span class="comment">// skip sending the 100-continue
             // just move forward to a read, in case a tiny body was included
             </span><span class="self">self</span>.state.reading = Reading::Body(decoder.clone());
         }

         <span class="kw">let _ </span>= <span class="self">self</span>.poll_read_body(cx);

         <span class="comment">// If still in Reading::Body, just give up
         </span><span class="kw">match </span><span class="self">self</span>.state.reading {
             Reading::Init | Reading::KeepAlive =&gt; <span class="macro">trace!</span>(<span class="string">&quot;body drained&quot;</span>),
             <span class="kw">_ </span>=&gt; <span class="self">self</span>.close_read(),
         }
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>close_read(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.close_read();
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>close_write(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.state.close_write();
     }

     <span class="attribute">#[cfg(feature = <span class="string">&quot;server&quot;</span>)]
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>disable_keep_alive(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="kw">if </span><span class="self">self</span>.state.is_idle() {
             <span class="macro">trace!</span>(<span class="string">&quot;disable_keep_alive; closing idle connection&quot;</span>);
             <span class="self">self</span>.state.close();
         } <span class="kw">else </span>{
             <span class="macro">trace!</span>(<span class="string">&quot;disable_keep_alive; in-progress connection&quot;</span>);
             <span class="self">self</span>.state.disable_keep_alive();
         }
     }

     <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>take_error(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw">crate</span>::Result&lt;()&gt; {
         <span class="kw">if let </span><span class="prelude-val">Some</span>(err) = <span class="self">self</span>.state.error.take() {
             <span class="prelude-val">Err</span>(err)
         } <span class="kw">else </span>{
             <span class="prelude-val">Ok</span>(())
         }
     }

     <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>on_upgrade(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw">crate</span>::upgrade::OnUpgrade {
         <span class="macro">trace!</span>(<span class="string">&quot;{}: prepare possible HTTP upgrade&quot;</span>, T::LOG);
         <span class="self">self</span>.state.prepare_upgrade()
     }
 }

 <span class="kw">impl</span>&lt;I, B: Buf, T&gt; fmt::Debug <span class="kw">for </span>Conn&lt;I, B, T&gt; {
     <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
         f.debug_struct(<span class="string">&quot;Conn&quot;</span>)
             .field(<span class="string">&quot;state&quot;</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.state)
             .field(<span class="string">&quot;io&quot;</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.io)
             .finish()
     }
 }

 <span class="comment">// B and T are never pinned
 </span><span class="kw">impl</span>&lt;I: Unpin, B, T&gt; Unpin <span class="kw">for </span>Conn&lt;I, B, T&gt; {}

 <span class="kw">struct </span>State {
     allow_half_close: bool,
     <span class="doccomment">/// Re-usable HeaderMap to reduce allocating new ones.
     </span>cached_headers: <span class="prelude-ty">Option</span>&lt;HeaderMap&gt;,
     <span class="doccomment">/// If an error occurs when there wasn&#39;t a direct way to return it
     /// back to the user, this is set.
     </span>error: <span class="prelude-ty">Option</span>&lt;<span class="kw">crate</span>::Error&gt;,
     <span class="doccomment">/// Current keep-alive status.
     </span>keep_alive: KA,
     <span class="doccomment">/// If mid-message, the HTTP Method that started it.
     ///
     /// This is used to know things such as if the message can include
     /// a body or not.
     </span>method: <span class="prelude-ty">Option</span>&lt;Method&gt;,
     h1_parser_config: ParserConfig,
     <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
     </span>h1_header_read_timeout: <span class="prelude-ty">Option</span>&lt;Duration&gt;,
     <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
     </span>h1_header_read_timeout_fut: <span class="prelude-ty">Option</span>&lt;Pin&lt;Box&lt;Sleep&gt;&gt;&gt;,
     <span class="attribute">#[cfg(all(feature = <span class="string">&quot;server&quot;</span>, feature = <span class="string">&quot;runtime&quot;</span>))]
     </span>h1_header_read_timeout_running: bool,
     preserve_header_case: bool,
     <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
     </span>preserve_header_order: bool,
     title_case_headers: bool,
     h09_responses: bool,
     <span class="doccomment">/// If set, called with each 1xx informational response received for
     /// the current request. MUST be unset after a non-1xx response is
     /// received.
     </span><span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
     </span>on_informational: <span class="prelude-ty">Option</span>&lt;<span class="kw">crate</span>::ffi::OnInformational&gt;,
     <span class="attribute">#[cfg(feature = <span class="string">&quot;ffi&quot;</span>)]
     </span>raw_headers: bool,
     <span class="doccomment">/// Set to true when the Dispatcher should poll read operations
     /// again. See the `maybe_notify` method for more.
     </span>notify_read: bool,
     <span class="doccomment">/// State of allowed reads
     </span>reading: Reading,
     <span class="doccomment">/// State of allowed writes
     </span>writing: Writing,
     <span class="doccomment">/// An expected pending HTTP upgrade.
     </span>upgrade: <span class="prelude-ty">Option</span>&lt;<span class="kw">crate</span>::upgrade::Pending&gt;,
     <span class="doccomment">/// Either HTTP/1.0 or 1.1 connection
     </span>version: Version,
 }

 <span class="attribute">#[derive(Debug)]
 </span><span class="kw">enum </span>Reading {
     Init,
     Continue(Decoder),
     Body(Decoder),
     KeepAlive,
     Closed,
 }

 <span class="kw">enum </span>Writing {
     Init,
     Body(Encoder),
     KeepAlive,
     Closed,
 }

 <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>State {
     <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
         <span class="kw">let </span><span class="kw-2">mut </span>builder = f.debug_struct(<span class="string">&quot;State&quot;</span>);
         builder
             .field(<span class="string">&quot;reading&quot;</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.reading)
             .field(<span class="string">&quot;writing&quot;</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.writing)
             .field(<span class="string">&quot;keep_alive&quot;</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.keep_alive);

         <span class="comment">// Only show error field if it&#39;s interesting...
         </span><span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>error) = <span class="self">self</span>.error {
             builder.field(<span class="string">&quot;error&quot;</span>, error);
         }

         <span class="kw">if </span><span class="self">self</span>.allow_half_close {
             builder.field(<span class="string">&quot;allow_half_close&quot;</span>, <span class="kw-2">&amp;</span><span class="bool-val">true</span>);
         }

         <span class="comment">// Purposefully leaving off other fields..

         </span>builder.finish()
     }
 }

 <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Writing {
     <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
         <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{
             Writing::Init =&gt; f.write_str(<span class="string">&quot;Init&quot;</span>),
             Writing::Body(<span class="kw-2">ref </span>enc) =&gt; f.debug_tuple(<span class="string">&quot;Body&quot;</span>).field(enc).finish(),
             Writing::KeepAlive =&gt; f.write_str(<span class="string">&quot;KeepAlive&quot;</span>),
             Writing::Closed =&gt; f.write_str(<span class="string">&quot;Closed&quot;</span>),
         }
     }
 }

 <span class="kw">impl </span>std::ops::BitAndAssign&lt;bool&gt; <span class="kw">for </span>KA {
     <span class="kw">fn </span>bitand_assign(<span class="kw-2">&amp;mut </span><span class="self">self</span>, enabled: bool) {
         <span class="kw">if </span>!enabled {
             <span class="macro">trace!</span>(<span class="string">&quot;remote disabling keep-alive&quot;</span>);
             <span class="kw-2">*</span><span class="self">self </span>= KA::Disabled;
         }
     }
 }

 <span class="attribute">#[derive(Clone, Copy, Debug)]
 </span><span class="kw">enum </span>KA {
     Idle,
     Busy,
     Disabled,
 }

 <span class="kw">impl </span>Default <span class="kw">for </span>KA {
     <span class="kw">fn </span>default() -&gt; KA {
         KA::Busy
     }
 }

 <span class="kw">impl </span>KA {
     <span class="kw">fn </span>idle(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="kw-2">*</span><span class="self">self </span>= KA::Idle;
     }

     <span class="kw">fn </span>busy(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="kw-2">*</span><span class="self">self </span>= KA::Busy;
     }

     <span class="kw">fn </span>disable(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="kw-2">*</span><span class="self">self </span>= KA::Disabled;
     }

     <span class="kw">fn </span>status(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; KA {
         <span class="kw-2">*</span><span class="self">self
     </span>}
 }

 <span class="kw">impl </span>State {
     <span class="kw">fn </span>close(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="macro">trace!</span>(<span class="string">&quot;State::close()&quot;</span>);
         <span class="self">self</span>.reading = Reading::Closed;
         <span class="self">self</span>.writing = Writing::Closed;
         <span class="self">self</span>.keep_alive.disable();
     }

     <span class="kw">fn </span>close_read(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="macro">trace!</span>(<span class="string">&quot;State::close_read()&quot;</span>);
         <span class="self">self</span>.reading = Reading::Closed;
         <span class="self">self</span>.keep_alive.disable();
     }

     <span class="kw">fn </span>close_write(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="macro">trace!</span>(<span class="string">&quot;State::close_write()&quot;</span>);
         <span class="self">self</span>.writing = Writing::Closed;
         <span class="self">self</span>.keep_alive.disable();
     }

     <span class="kw">fn </span>wants_keep_alive(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="kw">if let </span>KA::Disabled = <span class="self">self</span>.keep_alive.status() {
             <span class="bool-val">false
         </span>} <span class="kw">else </span>{
             <span class="bool-val">true
         </span>}
     }

     <span class="kw">fn </span>try_keep_alive&lt;T: Http1Transaction&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="kw">match </span>(<span class="kw-2">&amp;</span><span class="self">self</span>.reading, <span class="kw-2">&amp;</span><span class="self">self</span>.writing) {
             (<span class="kw-2">&amp;</span>Reading::KeepAlive, <span class="kw-2">&amp;</span>Writing::KeepAlive) =&gt; {
                 <span class="kw">if let </span>KA::Busy = <span class="self">self</span>.keep_alive.status() {
                     <span class="self">self</span>.idle::&lt;T&gt;();
                 } <span class="kw">else </span>{
                     <span class="macro">trace!</span>(
                         <span class="string">&quot;try_keep_alive({}): could keep-alive, but status = {:?}&quot;</span>,
                         T::LOG,
                         <span class="self">self</span>.keep_alive
                     );
                     <span class="self">self</span>.close();
                 }
             }
             (<span class="kw-2">&amp;</span>Reading::Closed, <span class="kw-2">&amp;</span>Writing::KeepAlive) | (<span class="kw-2">&amp;</span>Reading::KeepAlive, <span class="kw-2">&amp;</span>Writing::Closed) =&gt; {
                 <span class="self">self</span>.close()
             }
             <span class="kw">_ </span>=&gt; (),
         }
     }

     <span class="kw">fn </span>disable_keep_alive(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="self">self</span>.keep_alive.disable()
     }

     <span class="kw">fn </span>busy(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="kw">if let </span>KA::Disabled = <span class="self">self</span>.keep_alive.status() {
             <span class="kw">return</span>;
         }
         <span class="self">self</span>.keep_alive.busy();
     }

     <span class="kw">fn </span>idle&lt;T: Http1Transaction&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
         <span class="macro">debug_assert!</span>(!<span class="self">self</span>.is_idle(), <span class="string">&quot;State::idle() called while idle&quot;</span>);

         <span class="self">self</span>.method = <span class="prelude-val">None</span>;
         <span class="self">self</span>.keep_alive.idle();

         <span class="kw">if </span>!<span class="self">self</span>.is_idle() {
             <span class="self">self</span>.close();
             <span class="kw">return</span>;
         }

         <span class="self">self</span>.reading = Reading::Init;
         <span class="self">self</span>.writing = Writing::Init;

         <span class="comment">// !T::should_read_first() means Client.
         //
         // If Client connection has just gone idle, the Dispatcher
         // should try the poll loop one more time, so as to poll the
         // pending requests stream.
         </span><span class="kw">if </span>!T::should_read_first() {
             <span class="self">self</span>.notify_read = <span class="bool-val">true</span>;
         }
     }

     <span class="kw">fn </span>is_idle(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="macro">matches!</span>(<span class="self">self</span>.keep_alive.status(), KA::Idle)
     }

     <span class="kw">fn </span>is_read_closed(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="macro">matches!</span>(<span class="self">self</span>.reading, Reading::Closed)
     }

     <span class="kw">fn </span>is_write_closed(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
         <span class="macro">matches!</span>(<span class="self">self</span>.writing, Writing::Closed)
     }

     <span class="kw">fn </span>prepare_upgrade(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw">crate</span>::upgrade::OnUpgrade {
         <span class="kw">let </span>(tx, rx) = <span class="kw">crate</span>::upgrade::pending();
         <span class="self">self</span>.upgrade = <span class="prelude-val">Some</span>(tx);
         rx
     }
 }

 <span class="attribute">#[cfg(test)]
 </span><span class="kw">mod </span>tests {
     <span class="attribute">#[cfg(feature = <span class="string">&quot;nightly&quot;</span>)]
     #[bench]
     </span><span class="kw">fn </span>bench_read_head_short(b: <span class="kw-2">&amp;mut </span>::test::Bencher) {
         <span class="kw">use super</span>::<span class="kw-2">*</span>;
         <span class="kw">let </span>s = <span class="string">b&quot;GET / HTTP/1.1\r\nHost: localhost:8080\r\n\r\n&quot;</span>;
         <span class="kw">let </span>len = s.len();
         b.bytes = len <span class="kw">as </span>u64;

         <span class="comment">// an empty IO, we&#39;ll be skipping and using the read buffer anyways
         </span><span class="kw">let </span>io = tokio_test::io::Builder::new().build();
         <span class="kw">let </span><span class="kw-2">mut </span>conn = Conn::&lt;<span class="kw">_</span>, bytes::Bytes, <span class="kw">crate</span>::proto::h1::ServerTransaction&gt;::new(io);
         <span class="kw-2">*</span>conn.io.read_buf_mut() = ::bytes::BytesMut::from(<span class="kw-2">&amp;</span>s[..]);
         conn.state.cached_headers = <span class="prelude-val">Some</span>(HeaderMap::with_capacity(<span class="number">2</span>));

         <span class="kw">let </span>rt = tokio::runtime::Builder::new_current_thread()
             .enable_all()
             .build()
             .unwrap();

         b.iter(|| {
             rt.block_on(futures_util::future::poll_fn(|cx| {
                 <span class="kw">match </span>conn.poll_read_head(cx) {
                     Poll::Ready(<span class="prelude-val">Some</span>(<span class="prelude-val">Ok</span>(x))) =&gt; {
                         ::test::black_box(<span class="kw-2">&amp;</span>x);
                         <span class="kw">let </span><span class="kw-2">mut </span>headers = x.<span class="number">0</span>.headers;
                         headers.clear();
                         conn.state.cached_headers = <span class="prelude-val">Some</span>(headers);
                     }
                     f =&gt; <span class="macro">panic!</span>(<span class="string">&quot;expected Ready(Some(Ok(..))): {:?}&quot;</span>, f),
                 }

                 conn.io.read_buf_mut().reserve(<span class="number">1</span>);
                 <span class="kw">unsafe </span>{
                     conn.io.read_buf_mut().set_len(len);
                 }
                 conn.state.reading = Reading::Init;
                 Poll::Ready(())
             }));
         });
     }

     <span class="comment">/*
     //TODO: rewrite these using dispatch... someday...
     use futures::{Async, Future, Stream, Sink};
     use futures::future;

     use proto::{self, ClientTransaction, MessageHead, ServerTransaction};
     use super::super::Encoder;
     use mock::AsyncIo;

     use super::{Conn, Decoder, Reading, Writing};
     use ::uri::Uri;

     use std::str::FromStr;

     #[test]
     fn test_conn_init_read() {
         let good_message = b&quot;GET / HTTP/1.1\r\n\r\n&quot;.to_vec();
         let len = good_message.len();
         let io = AsyncIo::new_buf(good_message, len);
         let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);

         match conn.poll().unwrap() {
             Async::Ready(Some(Frame::Message { message, body: false })) =&gt; {
                 assert_eq!(message, MessageHead {
                     subject: ::proto::RequestLine(::Get, Uri::from_str(&quot;/&quot;).unwrap()),
                     .. MessageHead::default()
                 })
             },
             f =&gt; panic!(&quot;frame is not Frame::Message: {:?}&quot;, f)
         }
     }

     #[test]
     fn test_conn_parse_partial() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let good_message = b&quot;GET / HTTP/1.1\r\nHost: foo.bar\r\n\r\n&quot;.to_vec();
             let io = AsyncIo::new_buf(good_message, 10);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             assert!(conn.poll().unwrap().is_not_ready());
             conn.io.io_mut().block_in(50);
             let async = conn.poll().unwrap();
             assert!(async.is_ready());
             match async {
                 Async::Ready(Some(Frame::Message { .. })) =&gt; (),
                 f =&gt; panic!(&quot;frame is not Message: {:?}&quot;, f),
             }
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_init_read_eof_idle() {
         let io = AsyncIo::new_buf(vec![], 1);
         let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
         conn.state.idle();

         match conn.poll().unwrap() {
             Async::Ready(None) =&gt; {},
             other =&gt; panic!(&quot;frame is not None: {:?}&quot;, other)
         }
     }

     #[test]
     fn test_conn_init_read_eof_idle_partial_parse() {
         let io = AsyncIo::new_buf(b&quot;GET / HTTP/1.1&quot;.to_vec(), 100);
         let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
         conn.state.idle();

         match conn.poll() {
             Err(ref err) if err.kind() == std::io::ErrorKind::UnexpectedEof =&gt; {},
             other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
         }
     }

     #[test]
     fn test_conn_init_read_eof_busy() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             // server ignores
             let io = AsyncIo::new_eof();
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.busy();

             match conn.poll().unwrap() {
                 Async::Ready(None) =&gt; {},
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }

             // client
             let io = AsyncIo::new_eof();
             let mut conn = Conn::&lt;_, proto::Bytes, ClientTransaction&gt;::new(io);
             conn.state.busy();

             match conn.poll() {
                 Err(ref err) if err.kind() == std::io::ErrorKind::UnexpectedEof =&gt; {},
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_body_finish_read_eof() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let io = AsyncIo::new_eof();
             let mut conn = Conn::&lt;_, proto::Bytes, ClientTransaction&gt;::new(io);
             conn.state.busy();
             conn.state.writing = Writing::KeepAlive;
             conn.state.reading = Reading::Body(Decoder::length(0));

             match conn.poll() {
                 Ok(Async::Ready(Some(Frame::Body { chunk: None }))) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }

             // conn eofs, but tokio-proto will call poll() again, before calling flush()
             // the conn eof in this case is perfectly fine

             match conn.poll() {
                 Ok(Async::Ready(None)) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_message_empty_body_read_eof() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let io = AsyncIo::new_buf(b&quot;HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n&quot;.to_vec(), 1024);
             let mut conn = Conn::&lt;_, proto::Bytes, ClientTransaction&gt;::new(io);
             conn.state.busy();
             conn.state.writing = Writing::KeepAlive;

             match conn.poll() {
                 Ok(Async::Ready(Some(Frame::Message { body: false, .. }))) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }

             // conn eofs, but tokio-proto will call poll() again, before calling flush()
             // the conn eof in this case is perfectly fine

             match conn.poll() {
                 Ok(Async::Ready(None)) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_read_body_end() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let io = AsyncIo::new_buf(b&quot;POST / HTTP/1.1\r\nContent-Length: 5\r\n\r\n12345&quot;.to_vec(), 1024);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.busy();

             match conn.poll() {
                 Ok(Async::Ready(Some(Frame::Message { body: true, .. }))) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }

             match conn.poll() {
                 Ok(Async::Ready(Some(Frame::Body { chunk: Some(_) }))) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }

             // When the body is done, `poll` MUST return a `Body` frame with chunk set to `None`
             match conn.poll() {
                 Ok(Async::Ready(Some(Frame::Body { chunk: None }))) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }

             match conn.poll() {
                 Ok(Async::NotReady) =&gt; (),
                 other =&gt; panic!(&quot;unexpected frame: {:?}&quot;, other)
             }
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_closed_read() {
         let io = AsyncIo::new_buf(vec![], 0);
         let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
         conn.state.close();

         match conn.poll().unwrap() {
             Async::Ready(None) =&gt; {},
             other =&gt; panic!(&quot;frame is not None: {:?}&quot;, other)
         }
     }

     #[test]
     fn test_conn_body_write_length() {
         let _ = pretty_env_logger::try_init();
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let io = AsyncIo::new_buf(vec![], 0);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             let max = super::super::io::DEFAULT_MAX_BUFFER_SIZE + 4096;
             conn.state.writing = Writing::Body(Encoder::length((max * 2) as u64));

             assert!(conn.start_send(Frame::Body { chunk: Some(vec![b&#39;a&#39;; max].into()) }).unwrap().is_ready());
             assert!(!conn.can_buffer_body());

             assert!(conn.start_send(Frame::Body { chunk: Some(vec![b&#39;b&#39;; 1024 * 8].into()) }).unwrap().is_not_ready());

             conn.io.io_mut().block_in(1024 * 3);
             assert!(conn.poll_complete().unwrap().is_not_ready());
             conn.io.io_mut().block_in(1024 * 3);
             assert!(conn.poll_complete().unwrap().is_not_ready());
             conn.io.io_mut().block_in(max * 2);
             assert!(conn.poll_complete().unwrap().is_ready());

             assert!(conn.start_send(Frame::Body { chunk: Some(vec![b&#39;c&#39;; 1024 * 8].into()) }).unwrap().is_ready());
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_body_write_chunked() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let io = AsyncIo::new_buf(vec![], 4096);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.writing = Writing::Body(Encoder::chunked());

             assert!(conn.start_send(Frame::Body { chunk: Some(&quot;headers&quot;.into()) }).unwrap().is_ready());
             assert!(conn.start_send(Frame::Body { chunk: Some(vec![b&#39;x&#39;; 8192].into()) }).unwrap().is_ready());
             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_body_flush() {
         let _: Result&lt;(), ()&gt; = future::lazy(|| {
             let io = AsyncIo::new_buf(vec![], 1024 * 1024 * 5);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.writing = Writing::Body(Encoder::length(1024 * 1024));
             assert!(conn.start_send(Frame::Body { chunk: Some(vec![b&#39;a&#39;; 1024 * 1024].into()) }).unwrap().is_ready());
             assert!(!conn.can_buffer_body());
             conn.io.io_mut().block_in(1024 * 1024 * 5);
             assert!(conn.poll_complete().unwrap().is_ready());
             assert!(conn.can_buffer_body());
             assert!(conn.io.io_mut().flushed());

             Ok(())
         }).wait();
     }

     #[test]
     fn test_conn_parking() {
         use std::sync::Arc;
         use futures::executor::Notify;
         use futures::executor::NotifyHandle;

         struct Car {
             permit: bool,
         }
         impl Notify for Car {
             fn notify(&amp;self, _id: usize) {
                 assert!(self.permit, &quot;unparked without permit&quot;);
             }
         }

         fn car(permit: bool) -&gt; NotifyHandle {
             Arc::new(Car {
                 permit: permit,
             }).into()
         }

         // test that once writing is done, unparks
         let f = future::lazy(|| {
             let io = AsyncIo::new_buf(vec![], 4096);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.reading = Reading::KeepAlive;
             assert!(conn.poll().unwrap().is_not_ready());

             conn.state.writing = Writing::KeepAlive;
             assert!(conn.poll_complete().unwrap().is_ready());
             Ok::&lt;(), ()&gt;(())
         });
         ::futures::executor::spawn(f).poll_future_notify(&amp;car(true), 0).unwrap();


         // test that flushing when not waiting on read doesn&#39;t unpark
         let f = future::lazy(|| {
             let io = AsyncIo::new_buf(vec![], 4096);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.writing = Writing::KeepAlive;
             assert!(conn.poll_complete().unwrap().is_ready());
             Ok::&lt;(), ()&gt;(())
         });
         ::futures::executor::spawn(f).poll_future_notify(&amp;car(false), 0).unwrap();


         // test that flushing and writing isn&#39;t done doesn&#39;t unpark
         let f = future::lazy(|| {
             let io = AsyncIo::new_buf(vec![], 4096);
             let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
             conn.state.reading = Reading::KeepAlive;
             assert!(conn.poll().unwrap().is_not_ready());
             conn.state.writing = Writing::Body(Encoder::length(5_000));
             assert!(conn.poll_complete().unwrap().is_ready());
             Ok::&lt;(), ()&gt;(())
         });
         ::futures::executor::spawn(f).poll_future_notify(&amp;car(false), 0).unwrap();
     }

     #[test]
     fn test_conn_closed_write() {
         let io = AsyncIo::new_buf(vec![], 0);
         let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
         conn.state.close();

         match conn.start_send(Frame::Body { chunk: Some(b&quot;foobar&quot;.to_vec().into()) }) {
             Err(_e) =&gt; {},
             other =&gt; panic!(&quot;did not return Err: {:?}&quot;, other)
         }

         assert!(conn.state.is_write_closed());
     }

     #[test]
     fn test_conn_write_empty_chunk() {
         let io = AsyncIo::new_buf(vec![], 0);
         let mut conn = Conn::&lt;_, proto::Bytes, ServerTransaction&gt;::new(io);
         conn.state.writing = Writing::KeepAlive;

         assert!(conn.start_send(Frame::Body { chunk: None }).unwrap().is_ready());
         assert!(conn.start_send(Frame::Body { chunk: Some(Vec::new().into()) }).unwrap().is_ready());
         conn.start_send(Frame::Body { chunk: Some(vec![b&#39;a&#39;].into()) }).unwrap_err();
     }
     */
 </span>}
 </code></pre></div>
 </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="hyper" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>