actix/actix-website
1
0
Fork 0
mirror of https://github.com/actix/actix-website synced 2025-02-10 15:24:15 +01:00
Code Issues Releases Wiki Activity
actix-website/static/api/actix-web/0.7.2/src/actix_web/pipeline.rs.html
Nikolay Kim 90165ac1cc update stable docs
2018-07-26 10:53:41 -07:00

1547 lines
119 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source to the Rust file `src/pipeline.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>pipeline.rs.html -- source</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
<span id="2"> 2</span>
<span id="3"> 3</span>
<span id="4"> 4</span>
<span id="5"> 5</span>
<span id="6"> 6</span>
<span id="7"> 7</span>
<span id="8"> 8</span>
<span id="9"> 9</span>
<span id="10"> 10</span>
<span id="11"> 11</span>
<span id="12"> 12</span>
<span id="13"> 13</span>
<span id="14"> 14</span>
<span id="15"> 15</span>
<span id="16"> 16</span>
<span id="17"> 17</span>
<span id="18"> 18</span>
<span id="19"> 19</span>
<span id="20"> 20</span>
<span id="21"> 21</span>
<span id="22"> 22</span>
<span id="23"> 23</span>
<span id="24"> 24</span>
<span id="25"> 25</span>
<span id="26"> 26</span>
<span id="27"> 27</span>
<span id="28"> 28</span>
<span id="29"> 29</span>
<span id="30"> 30</span>
<span id="31"> 31</span>
<span id="32"> 32</span>
<span id="33"> 33</span>
<span id="34"> 34</span>
<span id="35"> 35</span>
<span id="36"> 36</span>
<span id="37"> 37</span>
<span 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>
</pre><pre class="rust ">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">marker</span>::<span class="ident">PhantomData</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">rc</span>::<span class="ident">Rc</span>;
<span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">io</span>, <span class="ident">mem</span>};
<span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">sync</span>::<span class="ident">oneshot</span>;
<span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Async</span>, <span class="ident">Future</span>, <span class="ident">Poll</span>, <span class="ident">Stream</span>};
<span class="kw">use</span> <span class="ident">log</span>::<span class="ident">Level</span>::<span class="ident">Debug</span>;
<span class="kw">use</span> <span class="ident">body</span>::{<span class="ident">Body</span>, <span class="ident">BodyStream</span>};
<span class="kw">use</span> <span class="ident">context</span>::{<span class="ident">ActorHttpContext</span>, <span class="ident">Frame</span>};
<span class="kw">use</span> <span class="ident">error</span>::<span class="ident">Error</span>;
<span class="kw">use</span> <span class="ident">handler</span>::{<span class="ident">AsyncResult</span>, <span class="ident">AsyncResultItem</span>};
<span class="kw">use</span> <span class="ident">header</span>::<span class="ident">ContentEncoding</span>;
<span class="kw">use</span> <span class="ident">httprequest</span>::<span class="ident">HttpRequest</span>;
<span class="kw">use</span> <span class="ident">httpresponse</span>::<span class="ident">HttpResponse</span>;
<span class="kw">use</span> <span class="ident">middleware</span>::{<span class="ident">Finished</span>, <span class="ident">Middleware</span>, <span class="ident">Response</span>, <span class="ident">Started</span>};
<span class="kw">use</span> <span class="ident">server</span>::{<span class="ident">HttpHandlerTask</span>, <span class="ident">Writer</span>, <span class="ident">WriterState</span>};
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">PipelineHandler</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span> {
<span class="kw">fn</span> <span class="ident">encoding</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">ContentEncoding</span>;
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="kw-2">&amp;</span><span class="ident">HttpRequest</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>) <span class="op">-&gt;</span> <span class="ident">AsyncResult</span><span class="op">&lt;</span><span class="ident">HttpResponse</span><span class="op">&gt;</span>;
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Pipeline</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span><span class="op">&gt;</span>(
<span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>,
<span class="ident">Rc</span><span class="op">&lt;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span><span class="op">&gt;&gt;</span>,
);
<span class="kw">enum</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="prelude-val">None</span>,
<span class="ident">Error</span>,
<span class="ident">Starting</span>(<span class="ident">StartMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>),
<span class="ident">Handler</span>(<span class="ident">WaitingResponse</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>),
<span class="ident">RunMiddlewares</span>(<span class="ident">RunMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>),
<span class="ident">Response</span>(<span class="ident">ProcessResponse</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>),
<span class="ident">Finishing</span>(<span class="ident">FinishingMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>),
<span class="ident">Completed</span>(<span class="ident">Completed</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>),
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span>: <span class="ident">PipelineHandler</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">fn</span> <span class="ident">is_response</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">bool</span> {
<span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> {
<span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="kw">_</span>) <span class="op">=&gt;</span> <span class="bool-val">true</span>,
<span class="kw">_</span> <span class="op">=&gt;</span> <span class="bool-val">false</span>,
}
}
<span class="kw">fn</span> <span class="ident">poll</span>(
<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> {
<span class="ident">PipelineState</span>::<span class="ident">Starting</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">state</span>) <span class="op">=&gt;</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="ident">info</span>, <span class="ident">mws</span>),
<span class="ident">PipelineState</span>::<span class="ident">Handler</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">state</span>) <span class="op">=&gt;</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="ident">info</span>, <span class="ident">mws</span>),
<span class="ident">PipelineState</span>::<span class="ident">RunMiddlewares</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">state</span>) <span class="op">=&gt;</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="ident">info</span>, <span class="ident">mws</span>),
<span class="ident">PipelineState</span>::<span class="ident">Finishing</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">state</span>) <span class="op">=&gt;</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="ident">info</span>, <span class="ident">mws</span>),
<span class="ident">PipelineState</span>::<span class="ident">Completed</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">state</span>) <span class="op">=&gt;</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="ident">info</span>),
<span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">PipelineState</span>::<span class="prelude-val">None</span> <span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Error</span> <span class="op">=&gt;</span> {
<span class="prelude-val">None</span>
}
}
}
}
<span class="kw">struct</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span><span class="op">&gt;</span> {
<span class="ident">req</span>: <span class="ident">HttpRequest</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">count</span>: <span class="ident">u16</span>,
<span class="ident">context</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Box</span><span class="op">&lt;</span><span class="ident">ActorHttpContext</span><span class="op">&gt;&gt;</span>,
<span class="ident">error</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Error</span><span class="op">&gt;</span>,
<span class="ident">disconnected</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">bool</span><span class="op">&gt;</span>,
<span class="ident">encoding</span>: <span class="ident">ContentEncoding</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span><span class="op">&gt;</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span> {
<span class="kw">fn</span> <span class="ident">poll_context</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">Poll</span><span class="op">&lt;</span>(), <span class="ident">Error</span><span class="op">&gt;</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">context</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">context</span> {
<span class="kw">match</span> <span class="ident">context</span>.<span class="ident">poll</span>() {
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>),
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>),
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="kw">_</span>)) <span class="op">=&gt;</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(())),
}
} <span class="kw">else</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(()))
}
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span>: <span class="ident">PipelineHandler</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span> <span class="ident">Pipeline</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(
<span class="ident">req</span>: <span class="ident">HttpRequest</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="ident">Rc</span><span class="op">&lt;</span><span class="ident">Vec</span><span class="op">&lt;</span><span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span><span class="op">&gt;&gt;</span>, <span class="ident">handler</span>: <span class="ident">Rc</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
) <span class="op">-&gt;</span> <span class="ident">Pipeline</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">info</span> <span class="op">=</span> <span class="ident">PipelineInfo</span> {
<span class="ident">req</span>,
<span class="ident">count</span>: <span class="number">0</span>,
<span class="ident">error</span>: <span class="prelude-val">None</span>,
<span class="ident">context</span>: <span class="prelude-val">None</span>,
<span class="ident">disconnected</span>: <span class="prelude-val">None</span>,
<span class="ident">encoding</span>: <span class="ident">handler</span>.<span class="ident">encoding</span>(),
};
<span class="kw">let</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">StartMiddlewares</span>::<span class="ident">init</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">info</span>, <span class="kw-2">&amp;</span><span class="ident">mws</span>, <span class="ident">handler</span>);
<span class="ident">Pipeline</span>(<span class="ident">info</span>, <span class="ident">state</span>, <span class="ident">mws</span>)
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span><span class="op">&gt;</span> <span class="ident">Pipeline</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">is_done</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">bool</span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="number">1</span> {
<span class="ident">PipelineState</span>::<span class="prelude-val">None</span>
<span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Error</span>
<span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Starting</span>(<span class="kw">_</span>)
<span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Handler</span>(<span class="kw">_</span>)
<span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">RunMiddlewares</span>(<span class="kw">_</span>)
<span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="kw">_</span>) <span class="op">=&gt;</span> <span class="bool-val">true</span>,
<span class="ident">PipelineState</span>::<span class="ident">Finishing</span>(<span class="kw">_</span>) <span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Completed</span>(<span class="kw">_</span>) <span class="op">=&gt;</span> <span class="bool-val">false</span>,
}
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span>: <span class="ident">PipelineHandler</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span> <span class="ident">HttpHandlerTask</span> <span class="kw">for</span> <span class="ident">Pipeline</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">fn</span> <span class="ident">disconnected</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) {
<span class="self">self</span>.<span class="number">0</span>.<span class="ident">disconnected</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="bool-val">true</span>);
}
<span class="kw">fn</span> <span class="ident">poll_io</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">io</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">Writer</span>) <span class="op">-&gt;</span> <span class="ident">Poll</span><span class="op">&lt;</span><span class="ident">bool</span>, <span class="ident">Error</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">replace</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">1</span>, <span class="ident">PipelineState</span>::<span class="prelude-val">None</span>);
<span class="kw">loop</span> {
<span class="kw">if</span> <span class="ident">state</span>.<span class="ident">is_response</span>() {
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="ident">st</span>) <span class="op">=</span> <span class="ident">state</span> {
<span class="kw">match</span> <span class="ident">st</span>.<span class="ident">poll_io</span>(<span class="ident">io</span>, <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">2</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">state</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="number">1</span> <span class="op">=</span> <span class="ident">state</span>;
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">error</span>) <span class="op">=</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">error</span>.<span class="ident">take</span>() {
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">error</span>);
} <span class="kw">else</span> {
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="self">self</span>.<span class="ident">is_done</span>()));
}
}
<span class="prelude-val">Err</span>(<span class="ident">state</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="number">1</span> <span class="op">=</span> <span class="ident">state</span>;
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>);
}
}
}
}
<span class="kw">match</span> <span class="ident">state</span> {
<span class="ident">PipelineState</span>::<span class="prelude-val">None</span> <span class="op">=&gt;</span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="bool-val">true</span>)),
<span class="ident">PipelineState</span>::<span class="ident">Error</span> <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="prelude-val">Err</span>(
<span class="ident">io</span>::<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">Other</span>, <span class="string">&quot;Internal error&quot;</span>).<span class="ident">into</span>()
)
}
<span class="kw">_</span> <span class="op">=&gt;</span> (),
}
<span class="kw">match</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">2</span>) {
<span class="prelude-val">Some</span>(<span class="ident">st</span>) <span class="op">=&gt;</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">st</span>,
<span class="prelude-val">None</span> <span class="op">=&gt;</span> {
<span class="kw">return</span> {
<span class="self">self</span>.<span class="number">1</span> <span class="op">=</span> <span class="ident">state</span>;
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>)
}
}
}
}
}
<span class="kw">fn</span> <span class="ident">poll_completed</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-&gt;</span> <span class="ident">Poll</span><span class="op">&lt;</span>(), <span class="ident">Error</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">replace</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">1</span>, <span class="ident">PipelineState</span>::<span class="prelude-val">None</span>);
<span class="kw">loop</span> {
<span class="kw">match</span> <span class="ident">state</span> {
<span class="ident">PipelineState</span>::<span class="prelude-val">None</span> <span class="op">|</span> <span class="ident">PipelineState</span>::<span class="ident">Error</span> <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(()))
}
<span class="kw">_</span> <span class="op">=&gt;</span> (),
}
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">st</span>) <span class="op">=</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">2</span>) {
<span class="ident">state</span> <span class="op">=</span> <span class="ident">st</span>;
} <span class="kw">else</span> {
<span class="self">self</span>.<span class="number">1</span> <span class="op">=</span> <span class="ident">state</span>;
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>);
}
}
}
}
<span class="kw">type</span> <span class="ident">Fut</span> <span class="op">=</span> <span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Item</span> <span class="op">=</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">HttpResponse</span><span class="op">&gt;</span>, <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span><span class="op">&gt;&gt;</span>;
<span class="doccomment">/// Middlewares start executor</span>
<span class="kw">struct</span> <span class="ident">StartMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="ident">hnd</span>: <span class="ident">Rc</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
<span class="ident">fut</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Fut</span><span class="op">&gt;</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span>: <span class="ident">PipelineHandler</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span> <span class="ident">StartMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">fn</span> <span class="ident">init</span>(
<span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>], <span class="ident">hnd</span>: <span class="ident">Rc</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
) <span class="op">-&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="comment">// execute middlewares, we need this stage because middlewares could be</span>
<span class="comment">// non-async and we can move to next state immediately</span>
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">mws</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u16</span>;
<span class="kw">loop</span> {
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">==</span> <span class="ident">len</span> {
<span class="kw">let</span> <span class="ident">reply</span> <span class="op">=</span> <span class="ident">hnd</span>.<span class="ident">handle</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>);
<span class="kw">return</span> <span class="ident">WaitingResponse</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">reply</span>);
} <span class="kw">else</span> {
<span class="kw">match</span> <span class="ident">mws</span>[<span class="ident">info</span>.<span class="ident">count</span> <span class="kw">as</span> <span class="ident">usize</span>].<span class="ident">start</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Done</span>) <span class="op">=&gt;</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">+=</span> <span class="number">1</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Response</span>(<span class="ident">resp</span>)) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">resp</span>);
}
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Future</span>(<span class="ident">fut</span>)) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="ident">PipelineState</span>::<span class="ident">Starting</span>(<span class="ident">StartMiddlewares</span> {
<span class="ident">hnd</span>,
<span class="ident">fut</span>: <span class="prelude-val">Some</span>(<span class="ident">fut</span>),
<span class="ident">_s</span>: <span class="ident">PhantomData</span>,
})
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">err</span>.<span class="ident">into</span>());
}
}
}
}
}
<span class="kw">fn</span> <span class="ident">poll</span>(
<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">mws</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u16</span>;
<span class="lifetime">&#39;outer</span>: <span class="kw">loop</span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">fut</span>.<span class="ident">as_mut</span>().<span class="ident">unwrap</span>().<span class="ident">poll</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="prelude-val">None</span>;
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">resp</span>)) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">count</span> <span class="op">+=</span> <span class="number">1</span>;
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">resp</span>) <span class="op">=</span> <span class="ident">resp</span> {
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">resp</span>));
}
<span class="kw">loop</span> {
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">==</span> <span class="ident">len</span> {
<span class="kw">let</span> <span class="ident">reply</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">hnd</span>.<span class="ident">handle</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>);
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">WaitingResponse</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">reply</span>));
} <span class="kw">else</span> {
<span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="ident">mws</span>[<span class="ident">info</span>.<span class="ident">count</span> <span class="kw">as</span> <span class="ident">usize</span>].<span class="ident">start</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>);
<span class="kw">match</span> <span class="ident">res</span> {
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Done</span>) <span class="op">=&gt;</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">+=</span> <span class="number">1</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Response</span>(<span class="ident">resp</span>)) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">resp</span>));
}
<span class="prelude-val">Ok</span>(<span class="ident">Started</span>::<span class="ident">Future</span>(<span class="ident">fut</span>)) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">fut</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">fut</span>);
<span class="kw">continue</span> <span class="lifetime">&#39;outer</span>;
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>,
<span class="ident">mws</span>,
<span class="ident">err</span>.<span class="ident">into</span>(),
));
}
}
}
}
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">err</span>.<span class="ident">into</span>()));
}
}
}
}
}
<span class="comment">// waiting for response</span>
<span class="kw">struct</span> <span class="ident">WaitingResponse</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="ident">fut</span>: <span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">HttpResponse</span>, <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span><span class="op">&gt;&gt;</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span><span class="op">&gt;</span> <span class="ident">WaitingResponse</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">init</span>(
<span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
<span class="ident">reply</span>: <span class="ident">AsyncResult</span><span class="op">&lt;</span><span class="ident">HttpResponse</span><span class="op">&gt;</span>,
) <span class="op">-&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">match</span> <span class="ident">reply</span>.<span class="ident">into</span>() {
<span class="ident">AsyncResultItem</span>::<span class="prelude-val">Ok</span>(<span class="ident">resp</span>) <span class="op">=&gt;</span> <span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">resp</span>),
<span class="ident">AsyncResultItem</span>::<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> <span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">err</span>.<span class="ident">into</span>()),
<span class="ident">AsyncResultItem</span>::<span class="ident">Future</span>(<span class="ident">fut</span>) <span class="op">=&gt;</span> <span class="ident">PipelineState</span>::<span class="ident">Handler</span>(<span class="ident">WaitingResponse</span> {
<span class="ident">fut</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span>,
}),
}
}
<span class="kw">fn</span> <span class="ident">poll</span>(
<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">fut</span>.<span class="ident">poll</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> <span class="prelude-val">None</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">resp</span>)) <span class="op">=&gt;</span> <span class="prelude-val">Some</span>(<span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">resp</span>)),
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> <span class="prelude-val">Some</span>(<span class="ident">RunMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="ident">err</span>.<span class="ident">into</span>())),
}
}
}
<span class="doccomment">/// Middlewares response executor</span>
<span class="kw">struct</span> <span class="ident">RunMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="ident">curr</span>: <span class="ident">usize</span>,
<span class="ident">fut</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">HttpResponse</span>, <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span><span class="op">&gt;&gt;</span><span class="op">&gt;</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span><span class="op">&gt;</span> <span class="ident">RunMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">init</span>(
<span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>], <span class="kw-2">mut</span> <span class="ident">resp</span>: <span class="ident">HttpResponse</span>,
) <span class="op">-&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">==</span> <span class="number">0</span> {
<span class="kw">return</span> <span class="ident">ProcessResponse</span>::<span class="ident">init</span>(<span class="ident">resp</span>);
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">curr</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">mws</span>.<span class="ident">len</span>();
<span class="kw">loop</span> {
<span class="kw">let</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">mws</span>[<span class="ident">curr</span>].<span class="ident">response</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>, <span class="ident">resp</span>);
<span class="ident">resp</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">state</span> {
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">count</span> <span class="op">=</span> (<span class="ident">curr</span> <span class="op">+</span> <span class="number">1</span>) <span class="kw">as</span> <span class="ident">u16</span>;
<span class="kw">return</span> <span class="ident">ProcessResponse</span>::<span class="ident">init</span>(<span class="ident">err</span>.<span class="ident">into</span>());
}
<span class="prelude-val">Ok</span>(<span class="ident">Response</span>::<span class="ident">Done</span>(<span class="ident">r</span>)) <span class="op">=&gt;</span> {
<span class="ident">curr</span> <span class="op">+=</span> <span class="number">1</span>;
<span class="kw">if</span> <span class="ident">curr</span> <span class="op">==</span> <span class="ident">len</span> {
<span class="kw">return</span> <span class="ident">ProcessResponse</span>::<span class="ident">init</span>(<span class="ident">r</span>);
} <span class="kw">else</span> {
<span class="ident">r</span>
}
}
<span class="prelude-val">Ok</span>(<span class="ident">Response</span>::<span class="ident">Future</span>(<span class="ident">fut</span>)) <span class="op">=&gt;</span> {
<span class="kw">return</span> <span class="ident">PipelineState</span>::<span class="ident">RunMiddlewares</span>(<span class="ident">RunMiddlewares</span> {
<span class="ident">curr</span>,
<span class="ident">fut</span>: <span class="prelude-val">Some</span>(<span class="ident">fut</span>),
<span class="ident">_s</span>: <span class="ident">PhantomData</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span>,
});
}
};
}
}
<span class="kw">fn</span> <span class="ident">poll</span>(
<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">mws</span>.<span class="ident">len</span>();
<span class="kw">loop</span> {
<span class="comment">// poll latest fut</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">resp</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">fut</span>.<span class="ident">as_mut</span>().<span class="ident">unwrap</span>().<span class="ident">poll</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> <span class="kw">return</span> <span class="prelude-val">None</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">resp</span>)) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">curr</span> <span class="op">+=</span> <span class="number">1</span>;
<span class="ident">resp</span>
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">ProcessResponse</span>::<span class="ident">init</span>(<span class="ident">err</span>.<span class="ident">into</span>())),
};
<span class="kw">loop</span> {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">curr</span> <span class="op">==</span> <span class="ident">len</span> {
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">ProcessResponse</span>::<span class="ident">init</span>(<span class="ident">resp</span>));
} <span class="kw">else</span> {
<span class="kw">let</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">mws</span>[<span class="self">self</span>.<span class="ident">curr</span>].<span class="ident">response</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>, <span class="ident">resp</span>);
<span class="kw">match</span> <span class="ident">state</span> {
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> <span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">ProcessResponse</span>::<span class="ident">init</span>(<span class="ident">err</span>.<span class="ident">into</span>())),
<span class="prelude-val">Ok</span>(<span class="ident">Response</span>::<span class="ident">Done</span>(<span class="ident">r</span>)) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">curr</span> <span class="op">+=</span> <span class="number">1</span>;
<span class="ident">resp</span> <span class="op">=</span> <span class="ident">r</span>
}
<span class="prelude-val">Ok</span>(<span class="ident">Response</span>::<span class="ident">Future</span>(<span class="ident">fut</span>)) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">fut</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">fut</span>);
<span class="kw">break</span>;
}
}
}
}
}
}
}
<span class="kw">struct</span> <span class="ident">ProcessResponse</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="ident">resp</span>: <span class="ident">HttpResponse</span>,
<span class="ident">iostate</span>: <span class="ident">IOState</span>,
<span class="ident">running</span>: <span class="ident">RunningState</span>,
<span class="ident">drain</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">oneshot</span>::<span class="ident">Sender</span><span class="op">&lt;</span>()<span class="op">&gt;&gt;</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">PartialEq</span>, <span class="ident">Debug</span>)]</span>
<span class="kw">enum</span> <span class="ident">RunningState</span> {
<span class="ident">Running</span>,
<span class="ident">Paused</span>,
<span class="ident">Done</span>,
}
<span class="kw">impl</span> <span class="ident">RunningState</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">pause</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) {
<span class="kw">if</span> <span class="kw-2">*</span><span class="self">self</span> <span class="op">!=</span> <span class="ident">RunningState</span>::<span class="ident">Done</span> {
<span class="kw-2">*</span><span class="self">self</span> <span class="op">=</span> <span class="ident">RunningState</span>::<span class="ident">Paused</span>
}
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">resume</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) {
<span class="kw">if</span> <span class="kw-2">*</span><span class="self">self</span> <span class="op">!=</span> <span class="ident">RunningState</span>::<span class="ident">Done</span> {
<span class="kw-2">*</span><span class="self">self</span> <span class="op">=</span> <span class="ident">RunningState</span>::<span class="ident">Running</span>
}
}
}
<span class="kw">enum</span> <span class="ident">IOState</span> {
<span class="ident">Response</span>,
<span class="ident">Payload</span>(<span class="ident">BodyStream</span>),
<span class="ident">Actor</span>(<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">ActorHttpContext</span><span class="op">&gt;</span>),
<span class="ident">Done</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span><span class="op">&gt;</span> <span class="ident">ProcessResponse</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">init</span>(<span class="ident">resp</span>: <span class="ident">HttpResponse</span>) <span class="op">-&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="ident">ProcessResponse</span> {
<span class="ident">resp</span>,
<span class="ident">iostate</span>: <span class="ident">IOState</span>::<span class="ident">Response</span>,
<span class="ident">running</span>: <span class="ident">RunningState</span>::<span class="ident">Running</span>,
<span class="ident">drain</span>: <span class="prelude-val">None</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span>,
})
}
<span class="kw">fn</span> <span class="ident">poll_io</span>(
<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">io</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">Writer</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
) <span class="op">-&gt;</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>, <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">loop</span> {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">drain</span>.<span class="ident">is_none</span>() <span class="op">&amp;&amp;</span> <span class="self">self</span>.<span class="ident">running</span> <span class="op">!=</span> <span class="ident">RunningState</span>::<span class="ident">Paused</span> {
<span class="comment">// if task is paused, write buffer is probably full</span>
<span class="lifetime">&#39;inner</span>: <span class="kw">loop</span> {
<span class="kw">let</span> <span class="ident">result</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">mem</span>::<span class="ident">replace</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">iostate</span>, <span class="ident">IOState</span>::<span class="ident">Done</span>) {
<span class="ident">IOState</span>::<span class="ident">Response</span> <span class="op">=&gt;</span> {
<span class="kw">let</span> <span class="ident">encoding</span> <span class="op">=</span>
<span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">content_encoding</span>().<span class="ident">unwrap_or</span>(<span class="ident">info</span>.<span class="ident">encoding</span>);
<span class="kw">let</span> <span class="ident">result</span> <span class="op">=</span>
<span class="kw">match</span> <span class="ident">io</span>.<span class="ident">start</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>, <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">resp</span>, <span class="ident">encoding</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">res</span>) <span class="op">=&gt;</span> <span class="ident">res</span>,
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
));
}
};
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">error</span>() {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">status</span>().<span class="ident">is_server_error</span>() {
<span class="macro">error</span><span class="macro">!</span>(
<span class="string">&quot;Error occured during request handling, status: {} {}&quot;</span>,
<span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">status</span>(), <span class="ident">err</span>
);
} <span class="kw">else</span> {
<span class="macro">warn</span><span class="macro">!</span>(
<span class="string">&quot;Error occured during request handling: {}&quot;</span>,
<span class="ident">err</span>
);
}
<span class="kw">if</span> <span class="macro">log_enabled</span><span class="macro">!</span>(<span class="ident">Debug</span>) {
<span class="macro">debug</span><span class="macro">!</span>(<span class="string">&quot;{:?}&quot;</span>, <span class="ident">err</span>);
}
}
<span class="comment">// always poll stream or actor for the first time</span>
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">replace_body</span>(<span class="ident">Body</span>::<span class="ident">Empty</span>) {
<span class="ident">Body</span>::<span class="ident">Streaming</span>(<span class="ident">stream</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Payload</span>(<span class="ident">stream</span>);
<span class="kw">continue</span> <span class="lifetime">&#39;inner</span>;
}
<span class="ident">Body</span>::<span class="ident">Actor</span>(<span class="ident">ctx</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Actor</span>(<span class="ident">ctx</span>);
<span class="kw">continue</span> <span class="lifetime">&#39;inner</span>;
}
<span class="kw">_</span> <span class="op">=&gt;</span> (),
}
<span class="ident">result</span>
}
<span class="ident">IOState</span>::<span class="ident">Payload</span>(<span class="kw-2">mut</span> <span class="ident">body</span>) <span class="op">=&gt;</span> <span class="kw">match</span> <span class="ident">body</span>.<span class="ident">poll</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>)) <span class="op">=&gt;</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span> <span class="ident">io</span>.<span class="ident">write_eof</span>() {
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
));
}
<span class="kw">break</span>;
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">Some</span>(<span class="ident">chunk</span>))) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Payload</span>(<span class="ident">body</span>);
<span class="kw">match</span> <span class="ident">io</span>.<span class="ident">write</span>(<span class="kw-2">&amp;</span><span class="ident">chunk</span>.<span class="ident">into</span>()) {
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
));
}
<span class="prelude-val">Ok</span>(<span class="ident">result</span>) <span class="op">=&gt;</span> <span class="ident">result</span>,
}
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Payload</span>(<span class="ident">body</span>);
<span class="kw">break</span>;
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>);
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
));
}
},
<span class="ident">IOState</span>::<span class="ident">Actor</span>(<span class="kw-2">mut</span> <span class="ident">ctx</span>) <span class="op">=&gt;</span> {
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">disconnected</span>.<span class="ident">take</span>().<span class="ident">is_some</span>() {
<span class="ident">ctx</span>.<span class="ident">disconnected</span>();
}
<span class="kw">match</span> <span class="ident">ctx</span>.<span class="ident">poll</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">Some</span>(<span class="ident">vec</span>))) <span class="op">=&gt;</span> {
<span class="kw">if</span> <span class="ident">vec</span>.<span class="ident">is_empty</span>() {
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Actor</span>(<span class="ident">ctx</span>);
<span class="kw">break</span>;
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">res</span> <span class="op">=</span> <span class="prelude-val">None</span>;
<span class="kw">for</span> <span class="ident">frame</span> <span class="kw">in</span> <span class="ident">vec</span> {
<span class="kw">match</span> <span class="ident">frame</span> {
<span class="ident">Frame</span>::<span class="ident">Chunk</span>(<span class="prelude-val">None</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">context</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">ctx</span>);
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span> <span class="ident">io</span>.<span class="ident">write_eof</span>() {
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(
<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
),
);
}
<span class="kw">break</span> <span class="lifetime">&#39;inner</span>;
}
<span class="ident">Frame</span>::<span class="ident">Chunk</span>(<span class="prelude-val">Some</span>(<span class="ident">chunk</span>)) <span class="op">=&gt;</span> {
<span class="kw">match</span> <span class="ident">io</span>.<span class="ident">write</span>(<span class="kw-2">&amp;</span><span class="ident">chunk</span>) {
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">context</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">ctx</span>);
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(
<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
),
);
}
<span class="prelude-val">Ok</span>(<span class="ident">result</span>) <span class="op">=&gt;</span> <span class="ident">res</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">result</span>),
}
}
<span class="ident">Frame</span>::<span class="ident">Drain</span>(<span class="ident">fut</span>) <span class="op">=&gt;</span> <span class="self">self</span>.<span class="ident">drain</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">fut</span>),
}
}
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Actor</span>(<span class="ident">ctx</span>);
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">drain</span>.<span class="ident">is_some</span>() {
<span class="self">self</span>.<span class="ident">running</span>.<span class="ident">resume</span>();
<span class="kw">break</span> <span class="lifetime">&#39;inner</span>;
}
<span class="ident">res</span>.<span class="ident">unwrap</span>()
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>)) <span class="op">=&gt;</span> <span class="kw">break</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">iostate</span> <span class="op">=</span> <span class="ident">IOState</span>::<span class="ident">Actor</span>(<span class="ident">ctx</span>);
<span class="kw">break</span>;
}
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">context</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">ctx</span>);
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>);
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(
<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>,
));
}
}
}
<span class="ident">IOState</span>::<span class="ident">Done</span> <span class="op">=&gt;</span> <span class="kw">break</span>,
};
<span class="kw">match</span> <span class="ident">result</span> {
<span class="ident">WriterState</span>::<span class="ident">Pause</span> <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">running</span>.<span class="ident">pause</span>();
<span class="kw">break</span>;
}
<span class="ident">WriterState</span>::<span class="ident">Done</span> <span class="op">=&gt;</span> <span class="self">self</span>.<span class="ident">running</span>.<span class="ident">resume</span>(),
}
}
}
<span class="comment">// flush io but only if we need to</span>
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">running</span> <span class="op">==</span> <span class="ident">RunningState</span>::<span class="ident">Paused</span> <span class="op">||</span> <span class="self">self</span>.<span class="ident">drain</span>.<span class="ident">is_some</span>() {
<span class="kw">match</span> <span class="ident">io</span>.<span class="ident">poll_completed</span>(<span class="bool-val">false</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="kw">_</span>)) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">running</span>.<span class="ident">resume</span>();
<span class="comment">// resolve drain futures</span>
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">tx</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">drain</span>.<span class="ident">take</span>() {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">tx</span>.<span class="ident">send</span>(());
}
<span class="comment">// restart io processing</span>
<span class="kw">continue</span>;
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="self">self</span>)),
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">IOState</span>::<span class="ident">Actor</span>(<span class="kw-2">mut</span> <span class="ident">ctx</span>) <span class="op">=</span>
<span class="ident">mem</span>::<span class="ident">replace</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">iostate</span>, <span class="ident">IOState</span>::<span class="ident">Done</span>)
{
<span class="ident">ctx</span>.<span class="ident">disconnected</span>();
<span class="ident">info</span>.<span class="ident">context</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">ctx</span>);
}
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>));
}
}
}
<span class="kw">break</span>;
}
<span class="comment">// response is completed</span>
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">iostate</span> {
<span class="ident">IOState</span>::<span class="ident">Done</span> <span class="op">=&gt;</span> {
<span class="kw">match</span> <span class="ident">io</span>.<span class="ident">write_eof</span>() {
<span class="prelude-val">Ok</span>(<span class="kw">_</span>) <span class="op">=&gt;</span> (),
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="ident">info</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>.<span class="ident">into</span>());
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>));
}
}
<span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">set_response_size</span>(<span class="ident">io</span>.<span class="ident">written</span>());
<span class="prelude-val">Ok</span>(<span class="ident">FinishingMiddlewares</span>::<span class="ident">init</span>(<span class="ident">info</span>, <span class="ident">mws</span>, <span class="self">self</span>.<span class="ident">resp</span>))
}
<span class="kw">_</span> <span class="op">=&gt;</span> <span class="prelude-val">Err</span>(<span class="ident">PipelineState</span>::<span class="ident">Response</span>(<span class="self">self</span>)),
}
}
}
<span class="doccomment">/// Middlewares start executor</span>
<span class="kw">struct</span> <span class="ident">FinishingMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="ident">resp</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">HttpResponse</span><span class="op">&gt;</span>,
<span class="ident">fut</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Item</span> <span class="op">=</span> (), <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span><span class="op">&gt;&gt;</span><span class="op">&gt;</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>: <span class="lifetime">&#39;static</span>, <span class="ident">H</span><span class="op">&gt;</span> <span class="ident">FinishingMiddlewares</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">init</span>(
<span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>], <span class="ident">resp</span>: <span class="ident">HttpResponse</span>,
) <span class="op">-&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">==</span> <span class="number">0</span> {
<span class="ident">resp</span>.<span class="ident">release</span>();
<span class="ident">Completed</span>::<span class="ident">init</span>(<span class="ident">info</span>)
} <span class="kw">else</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">state</span> <span class="op">=</span> <span class="ident">FinishingMiddlewares</span> {
<span class="ident">resp</span>: <span class="prelude-val">Some</span>(<span class="ident">resp</span>),
<span class="ident">fut</span>: <span class="prelude-val">None</span>,
<span class="ident">_s</span>: <span class="ident">PhantomData</span>,
<span class="ident">_h</span>: <span class="ident">PhantomData</span>,
};
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">st</span>) <span class="op">=</span> <span class="ident">state</span>.<span class="ident">poll</span>(<span class="ident">info</span>, <span class="ident">mws</span>) {
<span class="ident">st</span>
} <span class="kw">else</span> {
<span class="ident">PipelineState</span>::<span class="ident">Finishing</span>(<span class="ident">state</span>)
}
}
}
<span class="kw">fn</span> <span class="ident">poll</span>(
<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">mws</span>: <span class="kw-2">&amp;</span>[<span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Middleware</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;&gt;</span>],
) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">loop</span> {
<span class="comment">// poll latest fut</span>
<span class="kw">let</span> <span class="ident">not_ready</span> <span class="op">=</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">fut</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">fut</span> {
<span class="kw">match</span> <span class="ident">fut</span>.<span class="ident">poll</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> <span class="bool-val">true</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(())) <span class="op">=&gt;</span> <span class="bool-val">false</span>,
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=&gt;</span> {
<span class="macro">error</span><span class="macro">!</span>(<span class="string">&quot;Middleware finish error: {}&quot;</span>, <span class="ident">err</span>);
<span class="bool-val">false</span>
}
}
} <span class="kw">else</span> {
<span class="bool-val">false</span>
};
<span class="kw">if</span> <span class="ident">not_ready</span> {
<span class="kw">return</span> <span class="prelude-val">None</span>;
}
<span class="self">self</span>.<span class="ident">fut</span> <span class="op">=</span> <span class="prelude-val">None</span>;
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">==</span> <span class="number">0</span> {
<span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">take</span>().<span class="ident">unwrap</span>().<span class="ident">release</span>();
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">Completed</span>::<span class="ident">init</span>(<span class="ident">info</span>));
}
<span class="ident">info</span>.<span class="ident">count</span> <span class="op">-=</span> <span class="number">1</span>;
<span class="kw">let</span> <span class="ident">state</span> <span class="op">=</span>
<span class="ident">mws</span>[<span class="ident">info</span>.<span class="ident">count</span> <span class="kw">as</span> <span class="ident">usize</span>].<span class="ident">finish</span>(<span class="kw-2">&amp;</span><span class="ident">info</span>.<span class="ident">req</span>, <span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">as_ref</span>().<span class="ident">unwrap</span>());
<span class="kw">match</span> <span class="ident">state</span> {
<span class="ident">Finished</span>::<span class="ident">Done</span> <span class="op">=&gt;</span> {
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">count</span> <span class="op">==</span> <span class="number">0</span> {
<span class="self">self</span>.<span class="ident">resp</span>.<span class="ident">take</span>().<span class="ident">unwrap</span>().<span class="ident">release</span>();
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">Completed</span>::<span class="ident">init</span>(<span class="ident">info</span>));
}
}
<span class="ident">Finished</span>::<span class="ident">Future</span>(<span class="ident">fut</span>) <span class="op">=&gt;</span> {
<span class="self">self</span>.<span class="ident">fut</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">fut</span>);
}
}
}
}
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
<span class="kw">struct</span> <span class="ident">Completed</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span>(<span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>, <span class="ident">PhantomData</span><span class="op">&lt;</span><span class="ident">H</span><span class="op">&gt;</span>);
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> <span class="ident">Completed</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">init</span>(<span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>) <span class="op">-&gt;</span> <span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">err</span>) <span class="op">=</span> <span class="ident">info</span>.<span class="ident">error</span> {
<span class="macro">error</span><span class="macro">!</span>(<span class="string">&quot;Error occurred during request handling: {}&quot;</span>, <span class="ident">err</span>);
}
<span class="kw">if</span> <span class="ident">info</span>.<span class="ident">context</span>.<span class="ident">is_none</span>() {
<span class="ident">PipelineState</span>::<span class="prelude-val">None</span>
} <span class="kw">else</span> {
<span class="kw">match</span> <span class="ident">info</span>.<span class="ident">poll_context</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> {
<span class="ident">PipelineState</span>::<span class="ident">Completed</span>(<span class="ident">Completed</span>(<span class="ident">PhantomData</span>, <span class="ident">PhantomData</span>))
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(())) <span class="op">=&gt;</span> <span class="ident">PipelineState</span>::<span class="prelude-val">None</span>,
<span class="prelude-val">Err</span>(<span class="kw">_</span>) <span class="op">=&gt;</span> <span class="ident">PipelineState</span>::<span class="ident">Error</span>,
}
}
}
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">info</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">PipelineInfo</span><span class="op">&lt;</span><span class="ident">S</span><span class="op">&gt;</span>) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">PipelineState</span><span class="op">&lt;</span><span class="ident">S</span>, <span class="ident">H</span><span class="op">&gt;&gt;</span> {
<span class="kw">match</span> <span class="ident">info</span>.<span class="ident">poll_context</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=&gt;</span> <span class="prelude-val">None</span>,
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(())) <span class="op">=&gt;</span> <span class="prelude-val">Some</span>(<span class="ident">PipelineState</span>::<span class="prelude-val">None</span>),
<span class="prelude-val">Err</span>(<span class="kw">_</span>) <span class="op">=&gt;</span> <span class="prelude-val">Some</span>(<span class="ident">PipelineState</span>::<span class="ident">Error</span>),
}
}
}
</pre>
</section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>&#9166;</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../";window.currentCrate = "actix_web";</script><script src="../../aliases.js"></script><script src="../../main.js"></script><script defer src="../../search-index.js"></script></body></html>
Reference in New Issue View Git Blame Copy Permalink