<!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/server/srv.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>srv.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">☰</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>
<span id="773">773</span>
<span id="774">774</span>
<span id="775">775</span>
<span id="776">776</span>
<span id="777">777</span>
<span id="778">778</span>
<span id="779">779</span>
<span id="780">780</span>
<span id="781">781</span>
<span id="782">782</span>
<span id="783">783</span>
<span id="784">784</span>
<span id="785">785</span>
<span id="786">786</span>
<span id="787">787</span>
<span id="788">788</span>
<span id="789">789</span>
<span id="790">790</span>
<span id="791">791</span>
<span id="792">792</span>
<span id="793">793</span>
<span id="794">794</span>
<span id="795">795</span>
<span id="796">796</span>
<span id="797">797</span>
<span id="798">798</span>
<span id="799">799</span>
<span id="800">800</span>
<span id="801">801</span>
<span id="802">802</span>
<span id="803">803</span>
<span id="804">804</span>
<span id="805">805</span>
<span id="806">806</span>
<span id="807">807</span>
<span id="808">808</span>
<span id="809">809</span>
<span id="810">810</span>
<span id="811">811</span>
<span id="812">812</span>
<span id="813">813</span>
<span id="814">814</span>
<span id="815">815</span>
<span id="816">816</span>
<span id="817">817</span>
<span id="818">818</span>
<span id="819">819</span>
<span id="820">820</span>
<span id="821">821</span>
<span id="822">822</span>
<span id="823">823</span>
<span id="824">824</span>
<span id="825">825</span>
<span id="826">826</span>
<span id="827">827</span>
<span id="828">828</span>
<span id="829">829</span>
<span id="830">830</span>
<span id="831">831</span>
<span id="832">832</span>
<span id="833">833</span>
<span id="834">834</span>
<span id="835">835</span>
<span id="836">836</span>
<span id="837">837</span>
<span id="838">838</span>
<span id="839">839</span>
<span id="840">840</span>
<span id="841">841</span>
<span id="842">842</span>
<span id="843">843</span>
<span id="844">844</span>
<span id="845">845</span>
<span id="846">846</span>
<span id="847">847</span>
<span id="848">848</span>
<span id="849">849</span>
<span id="850">850</span>
<span id="851">851</span>
<span id="852">852</span>
<span id="853">853</span>
<span id="854">854</span>
<span id="855">855</span>
<span id="856">856</span>
<span id="857">857</span>
<span id="858">858</span>
<span id="859">859</span>
<span id="860">860</span>
<span id="861">861</span>
<span id="862">862</span>
<span id="863">863</span>
<span id="864">864</span>
<span id="865">865</span>
<span id="866">866</span>
<span id="867">867</span>
<span id="868">868</span>
<span id="869">869</span>
<span id="870">870</span>
<span id="871">871</span>
<span id="872">872</span>
<span id="873">873</span>
<span id="874">874</span>
<span id="875">875</span>
<span id="876">876</span>
<span id="877">877</span>
<span id="878">878</span>
<span id="879">879</span>
<span id="880">880</span>
<span id="881">881</span>
<span id="882">882</span>
<span id="883">883</span>
<span id="884">884</span>
<span id="885">885</span>
<span id="886">886</span>
<span id="887">887</span>
<span id="888">888</span>
<span id="889">889</span>
<span id="890">890</span>
<span id="891">891</span>
<span id="892">892</span>
<span id="893">893</span>
<span id="894">894</span>
<span id="895">895</span>
<span id="896">896</span>
<span id="897">897</span>
<span id="898">898</span>
<span id="899">899</span>
<span id="900">900</span>
<span id="901">901</span>
<span id="902">902</span>
<span id="903">903</span>
<span id="904">904</span>
<span id="905">905</span>
<span id="906">906</span>
<span id="907">907</span>
<span id="908">908</span>
<span id="909">909</span>
<span id="910">910</span>
<span id="911">911</span>
<span id="912">912</span>
<span id="913">913</span>
<span id="914">914</span>
<span id="915">915</span>
<span id="916">916</span>
<span id="917">917</span>
<span id="918">918</span>
<span id="919">919</span>
<span id="920">920</span>
<span id="921">921</span>
<span id="922">922</span>
<span id="923">923</span>
<span id="924">924</span>
<span id="925">925</span>
<span id="926">926</span>
<span id="927">927</span>
<span id="928">928</span>
<span id="929">929</span>
<span id="930">930</span>
<span id="931">931</span>
<span id="932">932</span>
<span id="933">933</span>
<span id="934">934</span>
<span id="935">935</span>
<span id="936">936</span>
<span id="937">937</span>
<span id="938">938</span>
<span id="939">939</span>
<span id="940">940</span>
<span id="941">941</span>
<span id="942">942</span>
<span id="943">943</span>
<span id="944">944</span>
<span id="945">945</span>
<span id="946">946</span>
<span id="947">947</span>
<span id="948">948</span>
<span id="949">949</span>
<span id="950">950</span>
<span id="951">951</span>
<span id="952">952</span>
<span id="953">953</span>
<span id="954">954</span>
<span id="955">955</span>
<span id="956">956</span>
<span id="957">957</span>
<span id="958">958</span>
<span id="959">959</span>
<span id="960">960</span>
</pre><pre class="rust ">
<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">sync</span>::{<span class="ident">mpsc</span> <span class="kw">as</span> <span class="ident">sync_mpsc</span>, <span class="ident">Arc</span>};
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">io</span>, <span class="ident">net</span>, <span class="ident">thread</span>};
<span class="kw">use</span> <span class="ident">actix</span>::{
<span class="ident">fut</span>, <span class="ident">signal</span>, <span class="ident">Actor</span>, <span class="ident">ActorFuture</span>, <span class="ident">Addr</span>, <span class="ident">Arbiter</span>, <span class="ident">AsyncContext</span>, <span class="ident">Context</span>, <span class="ident">Handler</span>,
<span class="ident">Response</span>, <span class="ident">StreamHandler</span>, <span class="ident">System</span>, <span class="ident">WrapFuture</span>,
};
<span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">sync</span>::<span class="ident">mpsc</span>;
<span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Future</span>, <span class="ident">Sink</span>, <span class="ident">Stream</span>};
<span class="kw">use</span> <span class="ident">mio</span>;
<span class="kw">use</span> <span class="ident">net2</span>::<span class="ident">TcpBuilder</span>;
<span class="kw">use</span> <span class="ident">num_cpus</span>;
<span class="kw">use</span> <span class="ident">slab</span>::<span class="ident">Slab</span>;
<span class="kw">use</span> <span class="ident">tokio_io</span>::{<span class="ident">AsyncRead</span>, <span class="ident">AsyncWrite</span>};
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"tls"</span>)]</span>
<span class="kw">use</span> <span class="ident">native_tls</span>::<span class="ident">TlsAcceptor</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"alpn"</span>)]</span>
<span class="kw">use</span> <span class="ident">openssl</span>::<span class="ident">ssl</span>::{<span class="ident">AlpnError</span>, <span class="ident">SslAcceptorBuilder</span>};
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">channel</span>::{<span class="ident">HttpChannel</span>, <span class="ident">WrapperStream</span>};
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">settings</span>::{<span class="ident">ServerSettings</span>, <span class="ident">WorkerSettings</span>};
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">worker</span>::{<span class="ident">Conn</span>, <span class="ident">SocketInfo</span>, <span class="ident">StopWorker</span>, <span class="ident">StreamHandlerType</span>, <span class="ident">Worker</span>};
<span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">IntoHttpHandler</span>, <span class="ident">IoStream</span>, <span class="ident">KeepAlive</span>};
<span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">PauseServer</span>, <span class="ident">ResumeServer</span>, <span class="ident">StopServer</span>};
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"alpn"</span>)]</span>
<span class="kw">fn</span> <span class="ident">configure_alpn</span>(<span class="ident">builder</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">SslAcceptorBuilder</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> {
<span class="ident">builder</span>.<span class="ident">set_alpn_protos</span>(<span class="string">b"\x02h2\x08http/1.1"</span>)<span class="question-mark">?</span>;
<span class="ident">builder</span>.<span class="ident">set_alpn_select_callback</span>(<span class="op">|</span><span class="kw">_</span>, <span class="ident">protos</span><span class="op">|</span> {
<span class="kw">const</span> <span class="ident">H2</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="string">b"\x02h2"</span>;
<span class="kw">if</span> <span class="ident">protos</span>.<span class="ident">windows</span>(<span class="number">3</span>).<span class="ident">any</span>(<span class="op">|</span><span class="ident">window</span><span class="op">|</span> <span class="ident">window</span> <span class="op">==</span> <span class="ident">H2</span>) {
<span class="prelude-val">Ok</span>(<span class="string">b"h2"</span>)
} <span class="kw">else</span> {
<span class="prelude-val">Err</span>(<span class="ident">AlpnError</span>::<span class="ident">NOACK</span>)
}
});
<span class="prelude-val">Ok</span>(())
}
<span class="doccomment">/// An HTTP Server</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>
<span class="kw">where</span>
<span class="ident">H</span>: <span class="ident">IntoHttpHandler</span> <span class="op">+</span> <span class="lifetime">'static</span>,
{
<span class="ident">h</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Rc</span><span class="op"><</span><span class="ident">WorkerSettings</span><span class="op"><</span><span class="ident">H</span>::<span class="ident">Handler</span><span class="op">>></span><span class="op">></span>,
<span class="ident">threads</span>: <span class="ident">usize</span>,
<span class="ident">backlog</span>: <span class="ident">i32</span>,
<span class="ident">host</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">></span>,
<span class="ident">keep_alive</span>: <span class="ident">KeepAlive</span>,
<span class="ident">factory</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">Fn</span>() <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> <span class="op">+</span> <span class="ident">Send</span> <span class="op">+</span> <span class="ident">Sync</span><span class="op">></span>,
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"cargo-clippy"</span>, <span class="ident">allow</span>(<span class="ident">type_complexity</span>))]</span>
<span class="ident">workers</span>: <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">usize</span>, <span class="ident">Addr</span><span class="op"><</span><span class="ident">Worker</span><span class="op"><</span><span class="ident">H</span>::<span class="ident">Handler</span><span class="op">>></span>)<span class="op">></span>,
<span class="ident">sockets</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Socket</span><span class="op">></span>,
<span class="ident">accept</span>: <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">mio</span>::<span class="ident">SetReadiness</span>, <span class="ident">sync_mpsc</span>::<span class="ident">Sender</span><span class="op"><</span><span class="ident">Command</span><span class="op">></span>)<span class="op">></span>,
<span class="ident">exit</span>: <span class="ident">bool</span>,
<span class="ident">shutdown_timeout</span>: <span class="ident">u16</span>,
<span class="ident">signals</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Addr</span><span class="op"><</span><span class="ident">signal</span>::<span class="ident">ProcessSignals</span><span class="op">>></span>,
<span class="ident">no_http2</span>: <span class="ident">bool</span>,
<span class="ident">no_signals</span>: <span class="ident">bool</span>,
}
<span class="kw">enum</span> <span class="ident">ServerCommand</span> {
<span class="ident">WorkerDied</span>(<span class="ident">usize</span>, <span class="ident">Slab</span><span class="op"><</span><span class="ident">SocketInfo</span><span class="op">></span>),
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> <span class="ident">Actor</span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>
<span class="kw">where</span>
<span class="ident">H</span>: <span class="ident">IntoHttpHandler</span>,
{
<span class="kw">type</span> <span class="ident">Context</span> <span class="op">=</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>;
}
<span class="kw">struct</span> <span class="ident">Socket</span> {
<span class="ident">lst</span>: <span class="ident">net</span>::<span class="ident">TcpListener</span>,
<span class="ident">addr</span>: <span class="ident">net</span>::<span class="ident">SocketAddr</span>,
<span class="ident">tp</span>: <span class="ident">StreamHandlerType</span>,
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>
<span class="kw">where</span>
<span class="ident">H</span>: <span class="ident">IntoHttpHandler</span> <span class="op">+</span> <span class="lifetime">'static</span>,
{
<span class="doccomment">/// Create new http server with application factory</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span><span class="op"><</span><span class="ident">F</span>, <span class="ident">U</span><span class="op">></span>(<span class="ident">factory</span>: <span class="ident">F</span>) <span class="op">-></span> <span class="self">Self</span>
<span class="kw">where</span>
<span class="ident">F</span>: <span class="ident">Fn</span>() <span class="op">-></span> <span class="ident">U</span> <span class="op">+</span> <span class="ident">Sync</span> <span class="op">+</span> <span class="ident">Send</span> <span class="op">+</span> <span class="lifetime">'static</span>,
<span class="ident">U</span>: <span class="ident">IntoIterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">H</span><span class="op">></span> <span class="op">+</span> <span class="lifetime">'static</span>,
{
<span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="kw">move</span> <span class="op">||</span> (<span class="ident">factory</span>)().<span class="ident">into_iter</span>().<span class="ident">collect</span>();
<span class="ident">HttpServer</span> {
<span class="ident">h</span>: <span class="prelude-val">None</span>,
<span class="ident">threads</span>: <span class="ident">num_cpus</span>::<span class="ident">get</span>(),
<span class="ident">backlog</span>: <span class="number">2048</span>,
<span class="ident">host</span>: <span class="prelude-val">None</span>,
<span class="ident">keep_alive</span>: <span class="ident">KeepAlive</span>::<span class="ident">Os</span>,
<span class="ident">factory</span>: <span class="ident">Arc</span>::<span class="ident">new</span>(<span class="ident">f</span>),
<span class="ident">workers</span>: <span class="ident">Vec</span>::<span class="ident">new</span>(),
<span class="ident">sockets</span>: <span class="ident">Vec</span>::<span class="ident">new</span>(),
<span class="ident">accept</span>: <span class="ident">Vec</span>::<span class="ident">new</span>(),
<span class="ident">exit</span>: <span class="bool-val">false</span>,
<span class="ident">shutdown_timeout</span>: <span class="number">30</span>,
<span class="ident">signals</span>: <span class="prelude-val">None</span>,
<span class="ident">no_http2</span>: <span class="bool-val">false</span>,
<span class="ident">no_signals</span>: <span class="bool-val">false</span>,
}
}
<span class="doccomment">/// Set number of workers to start.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// By default http server uses number of available logical cpu as threads</span>
<span class="doccomment">/// count.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">workers</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">num</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">threads</span> <span class="op">=</span> <span class="ident">num</span>;
<span class="self">self</span>
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="attribute">#[<span class="ident">deprecated</span>(<span class="ident">since</span> <span class="op">=</span> <span class="string">"0.6.0"</span>, <span class="ident">note</span> <span class="op">=</span> <span class="string">"please use `HttpServer::workers()` instead"</span>)]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">threads</span>(<span class="self">self</span>, <span class="ident">num</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">workers</span>(<span class="ident">num</span>)
}
<span class="doccomment">/// Set the maximum number of pending connections.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This refers to the number of clients that can be waiting to be served.</span>
<span class="doccomment">/// Exceeding this number results in the client getting an error when</span>
<span class="doccomment">/// attempting to connect. It should only affect servers under significant</span>
<span class="doccomment">/// load.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Generally set in the 64-2048 range. Default value is 2048.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method should be called before `bind()` method call.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">backlog</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">num</span>: <span class="ident">i32</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">backlog</span> <span class="op">=</span> <span class="ident">num</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Set server keep-alive setting.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// By default keep alive is set to a `Os`.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">keep_alive</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">KeepAlive</span><span class="op">>></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">val</span>: <span class="ident">T</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">keep_alive</span> <span class="op">=</span> <span class="ident">val</span>.<span class="ident">into</span>();
<span class="self">self</span>
}
<span class="doccomment">/// Set server host name.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Host name is used by application router aa a hostname for url</span>
<span class="doccomment">/// generation. Check [ConnectionInfo](./dev/struct.ConnectionInfo.</span>
<span class="doccomment">/// html#method.host) documentation for more information.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">server_hostname</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">val</span>: <span class="ident">String</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">host</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">val</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Stop actix system.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// `SystemExit` message stops currently running system.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">system_exit</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">exit</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Set alternative address for `ProcessSignals` actor.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">signals</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">addr</span>: <span class="ident">Addr</span><span class="op"><</span><span class="ident">signal</span>::<span class="ident">ProcessSignals</span><span class="op">></span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">signals</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">addr</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Disable signal handling</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">disable_signals</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">no_signals</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Timeout for graceful workers shutdown.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// After receiving a stop signal, workers have this much time to finish</span>
<span class="doccomment">/// serving requests. Workers still alive after the timeout are force</span>
<span class="doccomment">/// dropped.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// By default shutdown timeout sets to 30 seconds.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">shutdown_timeout</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">sec</span>: <span class="ident">u16</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">shutdown_timeout</span> <span class="op">=</span> <span class="ident">sec</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Disable `HTTP/2` support</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">no_http2</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">no_http2</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Get addresses of bound sockets.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">addrs</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">SocketAddr</span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">s</span><span class="op">|</span> <span class="ident">s</span>.<span class="ident">addr</span>).<span class="ident">collect</span>()
}
<span class="doccomment">/// Get addresses of bound sockets and the scheme for it.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This is useful when the server is bound from different sources</span>
<span class="doccomment">/// with some sockets listening on http and some listening on https</span>
<span class="doccomment">/// and the user should be presented with an enumeration of which</span>
<span class="doccomment">/// socket requires which protocol.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">addrs_with_scheme</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">net</span>::<span class="ident">SocketAddr</span>, <span class="kw-2">&</span><span class="ident">str</span>)<span class="op">></span> {
<span class="self">self</span>.<span class="ident">sockets</span>
.<span class="ident">iter</span>()
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">s</span><span class="op">|</span> (<span class="ident">s</span>.<span class="ident">addr</span>, <span class="ident">s</span>.<span class="ident">tp</span>.<span class="ident">scheme</span>()))
.<span class="ident">collect</span>()
}
<span class="doccomment">/// Use listener for accepting incoming connection requests</span>
<span class="doccomment">///</span>
<span class="doccomment">/// HttpServer does not change any configuration for TcpListener,</span>
<span class="doccomment">/// it needs to be configured before passing it to listen() method.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">listen</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">lst</span>: <span class="ident">net</span>::<span class="ident">TcpListener</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">lst</span>.<span class="ident">local_addr</span>().<span class="ident">unwrap</span>();
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">push</span>(<span class="ident">Socket</span> {
<span class="ident">addr</span>,
<span class="ident">lst</span>,
<span class="ident">tp</span>: <span class="ident">StreamHandlerType</span>::<span class="ident">Normal</span>,
});
<span class="self">self</span>
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"tls"</span>)]</span>
<span class="doccomment">/// Use listener for accepting incoming tls connection requests</span>
<span class="doccomment">///</span>
<span class="doccomment">/// HttpServer does not change any configuration for TcpListener,</span>
<span class="doccomment">/// it needs to be configured before passing it to listen() method.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">listen_tls</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">lst</span>: <span class="ident">net</span>::<span class="ident">TcpListener</span>, <span class="ident">acceptor</span>: <span class="ident">TlsAcceptor</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">lst</span>.<span class="ident">local_addr</span>().<span class="ident">unwrap</span>();
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">push</span>(<span class="ident">Socket</span> {
<span class="ident">addr</span>,
<span class="ident">lst</span>,
<span class="ident">tp</span>: <span class="ident">StreamHandlerType</span>::<span class="ident">Tls</span>(<span class="ident">acceptor</span>.<span class="ident">clone</span>()),
});
<span class="self">self</span>
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"alpn"</span>)]</span>
<span class="doccomment">/// Use listener for accepting incoming tls connection requests</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method sets alpn protocols to "h2" and "http/1.1"</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">listen_ssl</span>(
<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">lst</span>: <span class="ident">net</span>::<span class="ident">TcpListener</span>, <span class="kw-2">mut</span> <span class="ident">builder</span>: <span class="ident">SslAcceptorBuilder</span>,
) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
<span class="comment">// alpn support</span>
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">no_http2</span> {
<span class="ident">configure_alpn</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">builder</span>)<span class="question-mark">?</span>;
}
<span class="kw">let</span> <span class="ident">acceptor</span> <span class="op">=</span> <span class="ident">builder</span>.<span class="ident">build</span>();
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">lst</span>.<span class="ident">local_addr</span>().<span class="ident">unwrap</span>();
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">push</span>(<span class="ident">Socket</span> {
<span class="ident">addr</span>,
<span class="ident">lst</span>,
<span class="ident">tp</span>: <span class="ident">StreamHandlerType</span>::<span class="ident">Alpn</span>(<span class="ident">acceptor</span>.<span class="ident">clone</span>()),
});
<span class="prelude-val">Ok</span>(<span class="self">self</span>)
}
<span class="kw">fn</span> <span class="ident">bind2</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">net</span>::<span class="ident">ToSocketAddrs</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">addr</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="ident">Socket</span><span class="op">>></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">err</span> <span class="op">=</span> <span class="prelude-val">None</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">succ</span> <span class="op">=</span> <span class="bool-val">false</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">sockets</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>();
<span class="kw">for</span> <span class="ident">addr</span> <span class="kw">in</span> <span class="ident">addr</span>.<span class="ident">to_socket_addrs</span>()<span class="question-mark">?</span> {
<span class="kw">match</span> <span class="ident">create_tcp_listener</span>(<span class="ident">addr</span>, <span class="self">self</span>.<span class="ident">backlog</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">lst</span>) <span class="op">=></span> {
<span class="ident">succ</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">lst</span>.<span class="ident">local_addr</span>().<span class="ident">unwrap</span>();
<span class="ident">sockets</span>.<span class="ident">push</span>(<span class="ident">Socket</span> {
<span class="ident">lst</span>,
<span class="ident">addr</span>,
<span class="ident">tp</span>: <span class="ident">StreamHandlerType</span>::<span class="ident">Normal</span>,
});
}
<span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="ident">err</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">e</span>),
}
}
<span class="kw">if</span> <span class="op">!</span><span class="ident">succ</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="ident">err</span>.<span class="ident">take</span>() {
<span class="prelude-val">Err</span>(<span class="ident">e</span>)
} <span class="kw">else</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">"Can not bind to address."</span>,
))
}
} <span class="kw">else</span> {
<span class="prelude-val">Ok</span>(<span class="ident">sockets</span>)
}
}
<span class="doccomment">/// The socket address to bind</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To bind multiple addresses this method can be called multiple times.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bind</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">net</span>::<span class="ident">ToSocketAddrs</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">addr</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">sockets</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">bind2</span>(<span class="ident">addr</span>)<span class="question-mark">?</span>;
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">extend</span>(<span class="ident">sockets</span>);
<span class="prelude-val">Ok</span>(<span class="self">self</span>)
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"tls"</span>)]</span>
<span class="doccomment">/// The ssl socket address to bind</span>
<span class="doccomment">///</span>
<span class="doccomment">/// To bind multiple addresses this method can be called multiple times.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bind_tls</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">net</span>::<span class="ident">ToSocketAddrs</span><span class="op">></span>(
<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">addr</span>: <span class="ident">S</span>, <span class="ident">acceptor</span>: <span class="ident">TlsAcceptor</span>,
) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">sockets</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">bind2</span>(<span class="ident">addr</span>)<span class="question-mark">?</span>;
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">extend</span>(<span class="ident">sockets</span>.<span class="ident">into_iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="kw-2">mut</span> <span class="ident">s</span><span class="op">|</span> {
<span class="ident">s</span>.<span class="ident">tp</span> <span class="op">=</span> <span class="ident">StreamHandlerType</span>::<span class="ident">Tls</span>(<span class="ident">acceptor</span>.<span class="ident">clone</span>());
<span class="ident">s</span>
}));
<span class="prelude-val">Ok</span>(<span class="self">self</span>)
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"alpn"</span>)]</span>
<span class="doccomment">/// Start listening for incoming tls connections.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method sets alpn protocols to "h2" and "http/1.1"</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bind_ssl</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">net</span>::<span class="ident">ToSocketAddrs</span><span class="op">></span>(
<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">addr</span>: <span class="ident">S</span>, <span class="kw-2">mut</span> <span class="ident">builder</span>: <span class="ident">SslAcceptorBuilder</span>,
) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
<span class="comment">// alpn support</span>
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">no_http2</span> {
<span class="ident">configure_alpn</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">builder</span>)<span class="question-mark">?</span>;
}
<span class="kw">let</span> <span class="ident">acceptor</span> <span class="op">=</span> <span class="ident">builder</span>.<span class="ident">build</span>();
<span class="kw">let</span> <span class="ident">sockets</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">bind2</span>(<span class="ident">addr</span>)<span class="question-mark">?</span>;
<span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">extend</span>(<span class="ident">sockets</span>.<span class="ident">into_iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="kw-2">mut</span> <span class="ident">s</span><span class="op">|</span> {
<span class="ident">s</span>.<span class="ident">tp</span> <span class="op">=</span> <span class="ident">StreamHandlerType</span>::<span class="ident">Alpn</span>(<span class="ident">acceptor</span>.<span class="ident">clone</span>());
<span class="ident">s</span>
}));
<span class="prelude-val">Ok</span>(<span class="self">self</span>)
}
<span class="kw">fn</span> <span class="ident">start_workers</span>(
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">settings</span>: <span class="kw-2">&</span><span class="ident">ServerSettings</span>, <span class="ident">sockets</span>: <span class="kw-2">&</span><span class="ident">Slab</span><span class="op"><</span><span class="ident">SocketInfo</span><span class="op">></span>,
) <span class="op">-></span> <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">usize</span>, <span class="ident">mpsc</span>::<span class="ident">UnboundedSender</span><span class="op"><</span><span class="ident">Conn</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">TcpStream</span><span class="op">>></span>)<span class="op">></span> {
<span class="comment">// start workers</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">workers</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>();
<span class="kw">for</span> <span class="ident">idx</span> <span class="kw">in</span> <span class="number">0</span>..<span class="self">self</span>.<span class="ident">threads</span> {
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">mpsc</span>::<span class="ident">unbounded</span>::<span class="op"><</span><span class="ident">Conn</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">TcpStream</span><span class="op">>></span>();
<span class="kw">let</span> <span class="ident">ka</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">keep_alive</span>;
<span class="kw">let</span> <span class="ident">socks</span> <span class="op">=</span> <span class="ident">sockets</span>.<span class="ident">clone</span>();
<span class="kw">let</span> <span class="ident">factory</span> <span class="op">=</span> <span class="ident">Arc</span>::<span class="ident">clone</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">factory</span>);
<span class="kw">let</span> <span class="ident">parts</span> <span class="op">=</span> <span class="ident">settings</span>.<span class="ident">parts</span>();
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">Arbiter</span>::<span class="ident">start</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">ctx</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="kw">_</span><span class="op">></span><span class="op">|</span> {
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">ServerSettings</span>::<span class="ident">from_parts</span>(<span class="ident">parts</span>);
<span class="kw">let</span> <span class="ident">apps</span>: <span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span>
(<span class="kw-2">*</span><span class="ident">factory</span>)().<span class="ident">into_iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">h</span><span class="op">|</span> <span class="ident">h</span>.<span class="ident">into_handler</span>()).<span class="ident">collect</span>();
<span class="ident">ctx</span>.<span class="ident">add_message_stream</span>(<span class="ident">rx</span>);
<span class="ident">Worker</span>::<span class="ident">new</span>(<span class="ident">apps</span>, <span class="ident">socks</span>, <span class="ident">ka</span>, <span class="ident">s</span>)
});
<span class="ident">workers</span>.<span class="ident">push</span>((<span class="ident">idx</span>, <span class="ident">tx</span>));
<span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">push</span>((<span class="ident">idx</span>, <span class="ident">addr</span>));
}
<span class="macro">info</span><span class="macro">!</span>(<span class="string">"Starting {} http workers"</span>, <span class="self">self</span>.<span class="ident">threads</span>);
<span class="ident">workers</span>
}
<span class="comment">// subscribe to os signals</span>
<span class="kw">fn</span> <span class="ident">subscribe_to_signals</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Addr</span><span class="op"><</span><span class="ident">signal</span>::<span class="ident">ProcessSignals</span><span class="op">>></span> {
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">no_signals</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">signals</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">signals</span> {
<span class="prelude-val">Some</span>(<span class="ident">signals</span>.<span class="ident">clone</span>())
} <span class="kw">else</span> {
<span class="prelude-val">Some</span>(<span class="ident">System</span>::<span class="ident">current</span>().<span class="ident">registry</span>().<span class="ident">get</span>::<span class="op"><</span><span class="ident">signal</span>::<span class="ident">ProcessSignals</span><span class="op">></span>())
}
} <span class="kw">else</span> {
<span class="prelude-val">None</span>
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="doccomment">/// Start listening for incoming connections.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method starts number of http handler workers in separate threads.</span>
<span class="doccomment">/// For each address this method starts separate thread which does</span>
<span class="doccomment">/// `accept()` in a loop.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This methods panics if no socket addresses get bound.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method requires to run within properly configured `Actix` system.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust</span>
<span class="doccomment">/// extern crate actix_web;</span>
<span class="doccomment">/// use actix_web::{actix, server, App, HttpResponse};</span>
<span class="doccomment">///</span>
<span class="doccomment">/// fn main() {</span>
<span class="doccomment">/// let sys = actix::System::new("example"); // <- create Actix system</span>
<span class="doccomment">///</span>
<span class="doccomment">/// server::new(|| App::new().resource("/", |r| r.h(|_: &_| HttpResponse::Ok())))</span>
<span class="doccomment">/// .bind("127.0.0.1:0")</span>
<span class="doccomment">/// .expect("Can not bind to 127.0.0.1:0")</span>
<span class="doccomment">/// .start();</span>
<span class="doccomment">/// # actix::System::current().stop();</span>
<span class="doccomment">/// sys.run(); // <- Run actix system, this method starts all async processes</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">start</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Addr</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">is_empty</span>() {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"HttpServer::bind() has to be called before start()"</span>);
} <span class="kw">else</span> {
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">mpsc</span>::<span class="ident">unbounded</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">socks</span> <span class="op">=</span> <span class="ident">Slab</span>::<span class="ident">new</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">addrs</span>: <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">usize</span>, <span class="ident">Socket</span>)<span class="op">></span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>();
<span class="kw">for</span> <span class="ident">socket</span> <span class="kw">in</span> <span class="self">self</span>.<span class="ident">sockets</span>.<span class="ident">drain</span>(..) {
<span class="kw">let</span> <span class="ident">entry</span> <span class="op">=</span> <span class="ident">socks</span>.<span class="ident">vacant_entry</span>();
<span class="kw">let</span> <span class="ident">token</span> <span class="op">=</span> <span class="ident">entry</span>.<span class="ident">key</span>();
<span class="ident">entry</span>.<span class="ident">insert</span>(<span class="ident">SocketInfo</span> {
<span class="ident">addr</span>: <span class="ident">socket</span>.<span class="ident">addr</span>,
<span class="ident">htype</span>: <span class="ident">socket</span>.<span class="ident">tp</span>.<span class="ident">clone</span>(),
});
<span class="ident">addrs</span>.<span class="ident">push</span>((<span class="ident">token</span>, <span class="ident">socket</span>));
}
<span class="kw">let</span> <span class="ident">settings</span> <span class="op">=</span> <span class="ident">ServerSettings</span>::<span class="ident">new</span>(<span class="prelude-val">Some</span>(<span class="ident">addrs</span>[<span class="number">0</span>].<span class="number">1</span>.<span class="ident">addr</span>), <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">host</span>, <span class="bool-val">false</span>);
<span class="kw">let</span> <span class="ident">workers</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">start_workers</span>(<span class="kw-2">&</span><span class="ident">settings</span>, <span class="kw-2">&</span><span class="ident">socks</span>);
<span class="comment">// start acceptors threads</span>
<span class="kw">for</span> (<span class="ident">token</span>, <span class="ident">sock</span>) <span class="kw">in</span> <span class="ident">addrs</span> {
<span class="macro">info</span><span class="macro">!</span>(<span class="string">"Starting server on http://{}"</span>, <span class="ident">sock</span>.<span class="ident">addr</span>);
<span class="self">self</span>.<span class="ident">accept</span>.<span class="ident">push</span>(<span class="ident">start_accept_thread</span>(
<span class="ident">token</span>,
<span class="ident">sock</span>,
<span class="ident">tx</span>.<span class="ident">clone</span>(),
<span class="ident">socks</span>.<span class="ident">clone</span>(),
<span class="ident">workers</span>.<span class="ident">clone</span>(),
));
}
<span class="comment">// start http server actor</span>
<span class="kw">let</span> <span class="ident">signals</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">subscribe_to_signals</span>();
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">Actor</span>::<span class="ident">create</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">ctx</span><span class="op">|</span> {
<span class="ident">ctx</span>.<span class="ident">add_stream</span>(<span class="ident">rx</span>);
<span class="self">self</span>
});
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">signals</span>) <span class="op">=</span> <span class="ident">signals</span> {
<span class="ident">signals</span>.<span class="ident">do_send</span>(<span class="ident">signal</span>::<span class="ident">Subscribe</span>(<span class="ident">addr</span>.<span class="ident">clone</span>().<span class="ident">recipient</span>()))
}
<span class="ident">addr</span>
}
}
<span class="doccomment">/// Spawn new thread and start listening for incoming connections.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method spawns new thread and starts new actix system. Other than</span>
<span class="doccomment">/// that it is similar to `start()` method. This method blocks.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This methods panics if no socket addresses get bound.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```rust,ignore</span>
<span class="doccomment">/// # extern crate futures;</span>
<span class="doccomment">/// # extern crate actix_web;</span>
<span class="doccomment">/// # use futures::Future;</span>
<span class="doccomment">/// use actix_web::*;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// fn main() {</span>
<span class="doccomment">/// HttpServer::new(|| App::new().resource("/", |r| r.h(|_| HttpResponse::Ok())))</span>
<span class="doccomment">/// .bind("127.0.0.1:0")</span>
<span class="doccomment">/// .expect("Can not bind to 127.0.0.1:0")</span>
<span class="doccomment">/// .run();</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">run</span>(<span class="self">self</span>) {
<span class="kw">let</span> <span class="ident">sys</span> <span class="op">=</span> <span class="ident">System</span>::<span class="ident">new</span>(<span class="string">"http-server"</span>);
<span class="self">self</span>.<span class="ident">start</span>();
<span class="ident">sys</span>.<span class="ident">run</span>();
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"tls"</span>)]</span>
<span class="attribute">#[<span class="ident">deprecated</span>(
<span class="ident">since</span> <span class="op">=</span> <span class="string">"0.6.0"</span>, <span class="ident">note</span> <span class="op">=</span> <span class="string">"please use `actix_web::HttpServer::bind_tls` instead"</span>
)]</span>
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="doccomment">/// Start listening for incoming tls connections.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">start_tls</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">acceptor</span>: <span class="ident">TlsAcceptor</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Addr</span><span class="op"><</span><span class="self">Self</span><span class="op">>></span> {
<span class="kw">for</span> <span class="ident">sock</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">sockets</span> {
<span class="kw">match</span> <span class="ident">sock</span>.<span class="ident">tp</span> {
<span class="ident">StreamHandlerType</span>::<span class="ident">Normal</span> <span class="op">=></span> (),
<span class="kw">_</span> <span class="op">=></span> <span class="kw">continue</span>,
}
<span class="ident">sock</span>.<span class="ident">tp</span> <span class="op">=</span> <span class="ident">StreamHandlerType</span>::<span class="ident">Tls</span>(<span class="ident">acceptor</span>.<span class="ident">clone</span>());
}
<span class="prelude-val">Ok</span>(<span class="self">self</span>.<span class="ident">start</span>())
}
}
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"alpn"</span>)]</span>
<span class="attribute">#[<span class="ident">deprecated</span>(
<span class="ident">since</span> <span class="op">=</span> <span class="string">"0.6.0"</span>, <span class="ident">note</span> <span class="op">=</span> <span class="string">"please use `actix_web::HttpServer::bind_ssl` instead"</span>
)]</span>
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="doccomment">/// Start listening for incoming tls connections.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method sets alpn protocols to "h2" and "http/1.1"</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">start_ssl</span>(
<span class="kw-2">mut</span> <span class="self">self</span>, <span class="kw-2">mut</span> <span class="ident">builder</span>: <span class="ident">SslAcceptorBuilder</span>,
) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Addr</span><span class="op"><</span><span class="self">Self</span><span class="op">>></span> {
<span class="comment">// alpn support</span>
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">no_http2</span> {
<span class="ident">builder</span>.<span class="ident">set_alpn_protos</span>(<span class="string">b"\x02h2\x08http/1.1"</span>)<span class="question-mark">?</span>;
<span class="ident">builder</span>.<span class="ident">set_alpn_select_callback</span>(<span class="op">|</span><span class="kw">_</span>, <span class="ident">protos</span><span class="op">|</span> {
<span class="kw">const</span> <span class="ident">H2</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="string">b"\x02h2"</span>;
<span class="kw">if</span> <span class="ident">protos</span>.<span class="ident">windows</span>(<span class="number">3</span>).<span class="ident">any</span>(<span class="op">|</span><span class="ident">window</span><span class="op">|</span> <span class="ident">window</span> <span class="op">==</span> <span class="ident">H2</span>) {
<span class="prelude-val">Ok</span>(<span class="string">b"h2"</span>)
} <span class="kw">else</span> {
<span class="prelude-val">Err</span>(<span class="ident">AlpnError</span>::<span class="ident">NOACK</span>)
}
});
}
<span class="kw">let</span> <span class="ident">acceptor</span> <span class="op">=</span> <span class="ident">builder</span>.<span class="ident">build</span>();
<span class="kw">for</span> <span class="ident">sock</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">sockets</span> {
<span class="kw">match</span> <span class="ident">sock</span>.<span class="ident">tp</span> {
<span class="ident">StreamHandlerType</span>::<span class="ident">Normal</span> <span class="op">=></span> (),
<span class="kw">_</span> <span class="op">=></span> <span class="kw">continue</span>,
}
<span class="ident">sock</span>.<span class="ident">tp</span> <span class="op">=</span> <span class="ident">StreamHandlerType</span>::<span class="ident">Alpn</span>(<span class="ident">acceptor</span>.<span class="ident">clone</span>());
}
<span class="prelude-val">Ok</span>(<span class="self">self</span>.<span class="ident">start</span>())
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="doccomment">/// Start listening for incoming connections from a stream.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This method uses only one thread for handling incoming connections.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">start_incoming</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">S</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">stream</span>: <span class="ident">S</span>, <span class="ident">secure</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">Addr</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>
<span class="kw">where</span>
<span class="ident">S</span>: <span class="ident">Stream</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">T</span>, <span class="ident">Error</span> <span class="op">=</span> <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> <span class="op">+</span> <span class="ident">Send</span> <span class="op">+</span> <span class="lifetime">'static</span>,
<span class="ident">T</span>: <span class="ident">AsyncRead</span> <span class="op">+</span> <span class="ident">AsyncWrite</span> <span class="op">+</span> <span class="ident">Send</span> <span class="op">+</span> <span class="lifetime">'static</span>,
{
<span class="comment">// set server settings</span>
<span class="kw">let</span> <span class="ident">addr</span>: <span class="ident">net</span>::<span class="ident">SocketAddr</span> <span class="op">=</span> <span class="string">"127.0.0.1:8080"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>();
<span class="kw">let</span> <span class="ident">settings</span> <span class="op">=</span> <span class="ident">ServerSettings</span>::<span class="ident">new</span>(<span class="prelude-val">Some</span>(<span class="ident">addr</span>), <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">host</span>, <span class="ident">secure</span>);
<span class="kw">let</span> <span class="ident">apps</span>: <span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">factory</span>)()
.<span class="ident">into_iter</span>()
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">h</span><span class="op">|</span> <span class="ident">h</span>.<span class="ident">into_handler</span>())
.<span class="ident">collect</span>();
<span class="self">self</span>.<span class="ident">h</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Rc</span>::<span class="ident">new</span>(<span class="ident">WorkerSettings</span>::<span class="ident">new</span>(
<span class="ident">apps</span>,
<span class="self">self</span>.<span class="ident">keep_alive</span>,
<span class="ident">settings</span>,
)));
<span class="comment">// start server</span>
<span class="kw">let</span> <span class="ident">signals</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">subscribe_to_signals</span>();
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">HttpServer</span>::<span class="ident">create</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">ctx</span><span class="op">|</span> {
<span class="ident">ctx</span>.<span class="ident">add_message_stream</span>(<span class="ident">stream</span>.<span class="ident">map_err</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> ()).<span class="ident">map</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">t</span><span class="op">|</span> <span class="ident">Conn</span> {
<span class="ident">io</span>: <span class="ident">WrapperStream</span>::<span class="ident">new</span>(<span class="ident">t</span>),
<span class="ident">token</span>: <span class="number">0</span>,
<span class="ident">peer</span>: <span class="prelude-val">None</span>,
<span class="ident">http2</span>: <span class="bool-val">false</span>,
}));
<span class="self">self</span>
});
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">signals</span>) <span class="op">=</span> <span class="ident">signals</span> {
<span class="ident">signals</span>.<span class="ident">do_send</span>(<span class="ident">signal</span>::<span class="ident">Subscribe</span>(<span class="ident">addr</span>.<span class="ident">clone</span>().<span class="ident">recipient</span>()))
}
<span class="ident">addr</span>
}
}
<span class="doccomment">/// Signals support</span>
<span class="doccomment">/// Handle `SIGINT`, `SIGTERM`, `SIGQUIT` signals and stop actix system</span>
<span class="doccomment">/// message to `System` actor.</span>
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">Handler</span><span class="op"><</span><span class="ident">signal</span>::<span class="ident">Signal</span><span class="op">></span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="kw">type</span> <span class="prelude-ty">Result</span> <span class="op">=</span> ();
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">msg</span>: <span class="ident">signal</span>::<span class="ident">Signal</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) {
<span class="kw">match</span> <span class="ident">msg</span>.<span class="number">0</span> {
<span class="ident">signal</span>::<span class="ident">SignalType</span>::<span class="ident">Int</span> <span class="op">=></span> {
<span class="macro">info</span><span class="macro">!</span>(<span class="string">"SIGINT received, exiting"</span>);
<span class="self">self</span>.<span class="ident">exit</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="ident">Handler</span>::<span class="op"><</span><span class="ident">StopServer</span><span class="op">></span>::<span class="ident">handle</span>(<span class="self">self</span>, <span class="ident">StopServer</span> { <span class="ident">graceful</span>: <span class="bool-val">false</span> }, <span class="ident">ctx</span>);
}
<span class="ident">signal</span>::<span class="ident">SignalType</span>::<span class="ident">Term</span> <span class="op">=></span> {
<span class="macro">info</span><span class="macro">!</span>(<span class="string">"SIGTERM received, stopping"</span>);
<span class="self">self</span>.<span class="ident">exit</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="ident">Handler</span>::<span class="op"><</span><span class="ident">StopServer</span><span class="op">></span>::<span class="ident">handle</span>(<span class="self">self</span>, <span class="ident">StopServer</span> { <span class="ident">graceful</span>: <span class="bool-val">true</span> }, <span class="ident">ctx</span>);
}
<span class="ident">signal</span>::<span class="ident">SignalType</span>::<span class="ident">Quit</span> <span class="op">=></span> {
<span class="macro">info</span><span class="macro">!</span>(<span class="string">"SIGQUIT received, exiting"</span>);
<span class="self">self</span>.<span class="ident">exit</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="ident">Handler</span>::<span class="op"><</span><span class="ident">StopServer</span><span class="op">></span>::<span class="ident">handle</span>(<span class="self">self</span>, <span class="ident">StopServer</span> { <span class="ident">graceful</span>: <span class="bool-val">false</span> }, <span class="ident">ctx</span>);
}
<span class="kw">_</span> <span class="op">=></span> (),
}
}
}
<span class="doccomment">/// Commands from accept threads</span>
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">StreamHandler</span><span class="op"><</span><span class="ident">ServerCommand</span>, ()<span class="op">></span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="kw">fn</span> <span class="ident">finished</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) {}
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">msg</span>: <span class="ident">ServerCommand</span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) {
<span class="kw">match</span> <span class="ident">msg</span> {
<span class="ident">ServerCommand</span>::<span class="ident">WorkerDied</span>(<span class="ident">idx</span>, <span class="ident">socks</span>) <span class="op">=></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">found</span> <span class="op">=</span> <span class="bool-val">false</span>;
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">len</span>() {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">workers</span>[<span class="ident">i</span>].<span class="number">0</span> <span class="op">==</span> <span class="ident">idx</span> {
<span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">swap_remove</span>(<span class="ident">i</span>);
<span class="ident">found</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="kw">break</span>;
}
}
<span class="kw">if</span> <span class="ident">found</span> {
<span class="macro">error</span><span class="macro">!</span>(<span class="string">"Worker has died {:?}, restarting"</span>, <span class="ident">idx</span>);
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">mpsc</span>::<span class="ident">unbounded</span>::<span class="op"><</span><span class="ident">Conn</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">TcpStream</span><span class="op">>></span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">new_idx</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">len</span>();
<span class="lifetime">'found</span>: <span class="kw">loop</span> {
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="number">0</span>..<span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">len</span>() {
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">workers</span>[<span class="ident">i</span>].<span class="number">0</span> <span class="op">==</span> <span class="ident">new_idx</span> {
<span class="ident">new_idx</span> <span class="op">+=</span> <span class="number">1</span>;
<span class="kw">continue</span> <span class="lifetime">'found</span>;
}
}
<span class="kw">break</span>;
}
<span class="kw">let</span> <span class="ident">ka</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">keep_alive</span>;
<span class="kw">let</span> <span class="ident">factory</span> <span class="op">=</span> <span class="ident">Arc</span>::<span class="ident">clone</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">factory</span>);
<span class="kw">let</span> <span class="ident">host</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">host</span>.<span class="ident">clone</span>();
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">socks</span>[<span class="number">0</span>].<span class="ident">addr</span>;
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">Arbiter</span>::<span class="ident">start</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">ctx</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="kw">_</span><span class="op">></span><span class="op">|</span> {
<span class="kw">let</span> <span class="ident">settings</span> <span class="op">=</span> <span class="ident">ServerSettings</span>::<span class="ident">new</span>(<span class="prelude-val">Some</span>(<span class="ident">addr</span>), <span class="kw-2">&</span><span class="ident">host</span>, <span class="bool-val">false</span>);
<span class="kw">let</span> <span class="ident">apps</span>: <span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span>
(<span class="kw-2">*</span><span class="ident">factory</span>)().<span class="ident">into_iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">h</span><span class="op">|</span> <span class="ident">h</span>.<span class="ident">into_handler</span>()).<span class="ident">collect</span>();
<span class="ident">ctx</span>.<span class="ident">add_message_stream</span>(<span class="ident">rx</span>);
<span class="ident">Worker</span>::<span class="ident">new</span>(<span class="ident">apps</span>, <span class="ident">socks</span>, <span class="ident">ka</span>, <span class="ident">settings</span>)
});
<span class="kw">for</span> <span class="ident">item</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">accept</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">1</span>.<span class="ident">send</span>(<span class="ident">Command</span>::<span class="ident">Worker</span>(<span class="ident">new_idx</span>, <span class="ident">tx</span>.<span class="ident">clone</span>()));
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">0</span>.<span class="ident">set_readiness</span>(<span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>());
}
<span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">push</span>((<span class="ident">new_idx</span>, <span class="ident">addr</span>));
}
}
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">H</span><span class="op">></span> <span class="ident">Handler</span><span class="op"><</span><span class="ident">Conn</span><span class="op"><</span><span class="ident">T</span><span class="op">>></span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>
<span class="kw">where</span>
<span class="ident">T</span>: <span class="ident">IoStream</span>,
<span class="ident">H</span>: <span class="ident">IntoHttpHandler</span>,
{
<span class="kw">type</span> <span class="prelude-ty">Result</span> <span class="op">=</span> ();
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">msg</span>: <span class="ident">Conn</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) <span class="op">-></span> <span class="self">Self</span>::<span class="prelude-ty">Result</span> {
<span class="ident">Arbiter</span>::<span class="ident">spawn</span>(<span class="ident">HttpChannel</span>::<span class="ident">new</span>(
<span class="ident">Rc</span>::<span class="ident">clone</span>(<span class="self">self</span>.<span class="ident">h</span>.<span class="ident">as_ref</span>().<span class="ident">unwrap</span>()),
<span class="ident">msg</span>.<span class="ident">io</span>,
<span class="ident">msg</span>.<span class="ident">peer</span>,
<span class="ident">msg</span>.<span class="ident">http2</span>,
));
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">Handler</span><span class="op"><</span><span class="ident">PauseServer</span><span class="op">></span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="kw">type</span> <span class="prelude-ty">Result</span> <span class="op">=</span> ();
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="kw">_</span>: <span class="ident">PauseServer</span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) {
<span class="kw">for</span> <span class="ident">item</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">accept</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">1</span>.<span class="ident">send</span>(<span class="ident">Command</span>::<span class="ident">Pause</span>);
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">0</span>.<span class="ident">set_readiness</span>(<span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>());
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">Handler</span><span class="op"><</span><span class="ident">ResumeServer</span><span class="op">></span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="kw">type</span> <span class="prelude-ty">Result</span> <span class="op">=</span> ();
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="kw">_</span>: <span class="ident">ResumeServer</span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) {
<span class="kw">for</span> <span class="ident">item</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">accept</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">1</span>.<span class="ident">send</span>(<span class="ident">Command</span>::<span class="ident">Resume</span>);
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">0</span>.<span class="ident">set_readiness</span>(<span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>());
}
}
}
<span class="kw">impl</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">IntoHttpHandler</span><span class="op">></span> <span class="ident">Handler</span><span class="op"><</span><span class="ident">StopServer</span><span class="op">></span> <span class="kw">for</span> <span class="ident">HttpServer</span><span class="op"><</span><span class="ident">H</span><span class="op">></span> {
<span class="kw">type</span> <span class="prelude-ty">Result</span> <span class="op">=</span> <span class="ident">Response</span><span class="op"><</span>(), ()<span class="op">></span>;
<span class="kw">fn</span> <span class="ident">handle</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">msg</span>: <span class="ident">StopServer</span>, <span class="ident">ctx</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op"><</span><span class="self">Self</span><span class="op">></span>) <span class="op">-></span> <span class="self">Self</span>::<span class="prelude-ty">Result</span> {
<span class="comment">// stop accept threads</span>
<span class="kw">for</span> <span class="ident">item</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">accept</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">1</span>.<span class="ident">send</span>(<span class="ident">Command</span>::<span class="ident">Stop</span>);
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">item</span>.<span class="number">0</span>.<span class="ident">set_readiness</span>(<span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>());
}
<span class="comment">// stop workers</span>
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">mpsc</span>::<span class="ident">channel</span>(<span class="number">1</span>);
<span class="kw">let</span> <span class="ident">dur</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">msg</span>.<span class="ident">graceful</span> {
<span class="prelude-val">Some</span>(<span class="ident">Duration</span>::<span class="ident">new</span>(<span class="ident">u64</span>::<span class="ident">from</span>(<span class="self">self</span>.<span class="ident">shutdown_timeout</span>), <span class="number">0</span>))
} <span class="kw">else</span> {
<span class="prelude-val">None</span>
};
<span class="kw">for</span> <span class="ident">worker</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">workers</span> {
<span class="kw">let</span> <span class="ident">tx2</span> <span class="op">=</span> <span class="ident">tx</span>.<span class="ident">clone</span>();
<span class="ident">ctx</span>.<span class="ident">spawn</span>(
<span class="ident">worker</span>
.<span class="number">1</span>
.<span class="ident">send</span>(<span class="ident">StopWorker</span> { <span class="ident">graceful</span>: <span class="ident">dur</span> })
.<span class="ident">into_actor</span>(<span class="self">self</span>)
.<span class="ident">then</span>(<span class="kw">move</span> <span class="op">|</span><span class="kw">_</span>, <span class="ident">slf</span>, <span class="ident">ctx</span><span class="op">|</span> {
<span class="ident">slf</span>.<span class="ident">workers</span>.<span class="ident">pop</span>();
<span class="kw">if</span> <span class="ident">slf</span>.<span class="ident">workers</span>.<span class="ident">is_empty</span>() {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">tx2</span>.<span class="ident">send</span>(());
<span class="comment">// we need to stop system if server was spawned</span>
<span class="kw">if</span> <span class="ident">slf</span>.<span class="ident">exit</span> {
<span class="ident">ctx</span>.<span class="ident">run_later</span>(<span class="ident">Duration</span>::<span class="ident">from_millis</span>(<span class="number">300</span>), <span class="op">|</span><span class="kw">_</span>, <span class="kw">_</span><span class="op">|</span> {
<span class="ident">System</span>::<span class="ident">current</span>().<span class="ident">stop</span>();
});
}
}
<span class="ident">fut</span>::<span class="ident">ok</span>(())
}),
);
}
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">workers</span>.<span class="ident">is_empty</span>() {
<span class="ident">Response</span>::<span class="ident">async</span>(<span class="ident">rx</span>.<span class="ident">into_future</span>().<span class="ident">map</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> ()).<span class="ident">map_err</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> ()))
} <span class="kw">else</span> {
<span class="comment">// we need to stop system if server was spawned</span>
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">exit</span> {
<span class="ident">ctx</span>.<span class="ident">run_later</span>(<span class="ident">Duration</span>::<span class="ident">from_millis</span>(<span class="number">300</span>), <span class="op">|</span><span class="kw">_</span>, <span class="kw">_</span><span class="op">|</span> {
<span class="ident">System</span>::<span class="ident">current</span>().<span class="ident">stop</span>();
});
}
<span class="ident">Response</span>::<span class="ident">reply</span>(<span class="prelude-val">Ok</span>(()))
}
}
}
<span class="kw">enum</span> <span class="ident">Command</span> {
<span class="ident">Pause</span>,
<span class="ident">Resume</span>,
<span class="ident">Stop</span>,
<span class="ident">Worker</span>(<span class="ident">usize</span>, <span class="ident">mpsc</span>::<span class="ident">UnboundedSender</span><span class="op"><</span><span class="ident">Conn</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">TcpStream</span><span class="op">>></span>),
}
<span class="kw">fn</span> <span class="ident">start_accept_thread</span>(
<span class="ident">token</span>: <span class="ident">usize</span>, <span class="ident">sock</span>: <span class="ident">Socket</span>, <span class="ident">srv</span>: <span class="ident">mpsc</span>::<span class="ident">UnboundedSender</span><span class="op"><</span><span class="ident">ServerCommand</span><span class="op">></span>,
<span class="ident">socks</span>: <span class="ident">Slab</span><span class="op"><</span><span class="ident">SocketInfo</span><span class="op">></span>,
<span class="kw-2">mut</span> <span class="ident">workers</span>: <span class="ident">Vec</span><span class="op"><</span>(<span class="ident">usize</span>, <span class="ident">mpsc</span>::<span class="ident">UnboundedSender</span><span class="op"><</span><span class="ident">Conn</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">TcpStream</span><span class="op">>></span>)<span class="op">></span>,
) <span class="op">-></span> (<span class="ident">mio</span>::<span class="ident">SetReadiness</span>, <span class="ident">sync_mpsc</span>::<span class="ident">Sender</span><span class="op"><</span><span class="ident">Command</span><span class="op">></span>) {
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">sync_mpsc</span>::<span class="ident">channel</span>();
<span class="kw">let</span> (<span class="ident">reg</span>, <span class="ident">readiness</span>) <span class="op">=</span> <span class="ident">mio</span>::<span class="ident">Registration</span>::<span class="ident">new2</span>();
<span class="comment">// start accept thread</span>
<span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"cargo-clippy"</span>, <span class="ident">allow</span>(<span class="ident">cyclomatic_complexity</span>))]</span>
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">thread</span>::<span class="ident">Builder</span>::<span class="ident">new</span>()
.<span class="ident">name</span>(<span class="macro">format</span><span class="macro">!</span>(<span class="string">"Accept on {}"</span>, <span class="ident">sock</span>.<span class="ident">addr</span>))
.<span class="ident">spawn</span>(<span class="kw">move</span> <span class="op">||</span> {
<span class="kw">const</span> <span class="ident">SRV</span>: <span class="ident">mio</span>::<span class="ident">Token</span> <span class="op">=</span> <span class="ident">mio</span>::<span class="ident">Token</span>(<span class="number">0</span>);
<span class="kw">const</span> <span class="ident">CMD</span>: <span class="ident">mio</span>::<span class="ident">Token</span> <span class="op">=</span> <span class="ident">mio</span>::<span class="ident">Token</span>(<span class="number">1</span>);
<span class="kw">let</span> <span class="ident">addr</span> <span class="op">=</span> <span class="ident">sock</span>.<span class="ident">addr</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">server</span> <span class="op">=</span> <span class="prelude-val">Some</span>(
<span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpListener</span>::<span class="ident">from_std</span>(<span class="ident">sock</span>.<span class="ident">lst</span>)
.<span class="ident">expect</span>(<span class="string">"Can not create mio::net::TcpListener"</span>),
);
<span class="comment">// Create a poll instance</span>
<span class="kw">let</span> <span class="ident">poll</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">mio</span>::<span class="ident">Poll</span>::<span class="ident">new</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">poll</span>) <span class="op">=></span> <span class="ident">poll</span>,
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"Can not create mio::Poll: {}"</span>, <span class="ident">err</span>),
};
<span class="comment">// Start listening for incoming connections</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">srv</span>) <span class="op">=</span> <span class="ident">server</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">poll</span>.<span class="ident">register</span>(<span class="ident">srv</span>, <span class="ident">SRV</span>, <span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>(), <span class="ident">mio</span>::<span class="ident">PollOpt</span>::<span class="ident">edge</span>())
{
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"Can not register io: {}"</span>, <span class="ident">err</span>);
}
}
<span class="comment">// Start listening for incoming commands</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">poll</span>.<span class="ident">register</span>(<span class="kw-2">&</span><span class="ident">reg</span>, <span class="ident">CMD</span>, <span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>(), <span class="ident">mio</span>::<span class="ident">PollOpt</span>::<span class="ident">edge</span>())
{
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"Can not register Registration: {}"</span>, <span class="ident">err</span>);
}
<span class="comment">// Create storage for events</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">events</span> <span class="op">=</span> <span class="ident">mio</span>::<span class="ident">Events</span>::<span class="ident">with_capacity</span>(<span class="number">128</span>);
<span class="comment">// Sleep on error</span>
<span class="kw">let</span> <span class="ident">sleep</span> <span class="op">=</span> <span class="ident">Duration</span>::<span class="ident">from_millis</span>(<span class="number">100</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">next</span> <span class="op">=</span> <span class="number">0</span>;
<span class="kw">loop</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">poll</span>.<span class="ident">poll</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">events</span>, <span class="prelude-val">None</span>) {
<span class="macro">panic</span><span class="macro">!</span>(<span class="string">"Poll error: {}"</span>, <span class="ident">err</span>);
}
<span class="kw">for</span> <span class="ident">event</span> <span class="kw">in</span> <span class="ident">events</span>.<span class="ident">iter</span>() {
<span class="kw">match</span> <span class="ident">event</span>.<span class="ident">token</span>() {
<span class="ident">SRV</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="ident">server</span>) <span class="op">=</span> <span class="ident">server</span> {
<span class="kw">loop</span> {
<span class="kw">match</span> <span class="ident">server</span>.<span class="ident">accept_std</span>() {
<span class="prelude-val">Ok</span>((<span class="ident">io</span>, <span class="ident">addr</span>)) <span class="op">=></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">msg</span> <span class="op">=</span> <span class="ident">Conn</span> {
<span class="ident">io</span>,
<span class="ident">token</span>,
<span class="ident">peer</span>: <span class="prelude-val">Some</span>(<span class="ident">addr</span>),
<span class="ident">http2</span>: <span class="bool-val">false</span>,
};
<span class="kw">while</span> <span class="op">!</span><span class="ident">workers</span>.<span class="ident">is_empty</span>() {
<span class="kw">match</span> <span class="ident">workers</span>[<span class="ident">next</span>].<span class="number">1</span>.<span class="ident">unbounded_send</span>(<span class="ident">msg</span>) {
<span class="prelude-val">Ok</span>(<span class="kw">_</span>) <span class="op">=></span> (),
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">srv</span>.<span class="ident">unbounded_send</span>(
<span class="ident">ServerCommand</span>::<span class="ident">WorkerDied</span>(
<span class="ident">workers</span>[<span class="ident">next</span>].<span class="number">0</span>,
<span class="ident">socks</span>.<span class="ident">clone</span>(),
),
);
<span class="ident">msg</span> <span class="op">=</span> <span class="ident">err</span>.<span class="ident">into_inner</span>();
<span class="ident">workers</span>.<span class="ident">swap_remove</span>(<span class="ident">next</span>);
<span class="kw">if</span> <span class="ident">workers</span>.<span class="ident">is_empty</span>() {
<span class="macro">error</span><span class="macro">!</span>(<span class="string">"No workers"</span>);
<span class="ident">thread</span>::<span class="ident">sleep</span>(<span class="ident">sleep</span>);
<span class="kw">break</span>;
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">workers</span>.<span class="ident">len</span>() <span class="op"><=</span> <span class="ident">next</span> {
<span class="ident">next</span> <span class="op">=</span> <span class="number">0</span>;
}
<span class="kw">continue</span>;
}
}
<span class="ident">next</span> <span class="op">=</span> (<span class="ident">next</span> <span class="op">+</span> <span class="number">1</span>) <span class="op">%</span> <span class="ident">workers</span>.<span class="ident">len</span>();
<span class="kw">break</span>;
}
}
<span class="prelude-val">Err</span>(<span class="kw-2">ref</span> <span class="ident">e</span>)
<span class="kw">if</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span> <span class="op">=></span>
{
<span class="kw">break</span>
}
<span class="prelude-val">Err</span>(<span class="kw-2">ref</span> <span class="ident">e</span>) <span class="kw">if</span> <span class="ident">connection_error</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="kw">continue</span>,
<span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> {
<span class="macro">error</span><span class="macro">!</span>(<span class="string">"Error accepting connection: {}"</span>, <span class="ident">e</span>);
<span class="comment">// sleep after error</span>
<span class="ident">thread</span>::<span class="ident">sleep</span>(<span class="ident">sleep</span>);
<span class="kw">break</span>;
}
}
}
},
<span class="ident">CMD</span> <span class="op">=></span> <span class="kw">match</span> <span class="ident">rx</span>.<span class="ident">try_recv</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">cmd</span>) <span class="op">=></span> <span class="kw">match</span> <span class="ident">cmd</span> {
<span class="ident">Command</span>::<span class="ident">Pause</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="ident">server</span>) <span class="op">=</span> <span class="ident">server</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">poll</span>.<span class="ident">deregister</span>(<span class="ident">server</span>) {
<span class="macro">error</span><span class="macro">!</span>(
<span class="string">"Can not deregister server socket {}"</span>,
<span class="ident">err</span>
);
} <span class="kw">else</span> {
<span class="macro">info</span><span class="macro">!</span>(
<span class="string">"Paused accepting connections on {}"</span>,
<span class="ident">addr</span>
);
}
},
<span class="ident">Command</span>::<span class="ident">Resume</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="ident">server</span>) <span class="op">=</span> <span class="ident">server</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">poll</span>.<span class="ident">register</span>(
<span class="ident">server</span>,
<span class="ident">SRV</span>,
<span class="ident">mio</span>::<span class="ident">Ready</span>::<span class="ident">readable</span>(),
<span class="ident">mio</span>::<span class="ident">PollOpt</span>::<span class="ident">edge</span>(),
) {
<span class="macro">error</span><span class="macro">!</span>(<span class="string">"Can not resume socket accept process: {}"</span>, <span class="ident">err</span>);
} <span class="kw">else</span> {
<span class="macro">info</span><span class="macro">!</span>(<span class="string">"Accepting connections on {} has been resumed"</span>,
<span class="ident">addr</span>);
}
}
}
<span class="ident">Command</span>::<span class="ident">Stop</span> <span class="op">=></span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">server</span>) <span class="op">=</span> <span class="ident">server</span>.<span class="ident">take</span>() {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">poll</span>.<span class="ident">deregister</span>(<span class="kw-2">&</span><span class="ident">server</span>);
}
<span class="kw">return</span>;
}
<span class="ident">Command</span>::<span class="ident">Worker</span>(<span class="ident">idx</span>, <span class="ident">addr</span>) <span class="op">=></span> {
<span class="ident">workers</span>.<span class="ident">push</span>((<span class="ident">idx</span>, <span class="ident">addr</span>));
}
},
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> <span class="kw">match</span> <span class="ident">err</span> {
<span class="ident">sync_mpsc</span>::<span class="ident">TryRecvError</span>::<span class="ident">Empty</span> <span class="op">=></span> (),
<span class="ident">sync_mpsc</span>::<span class="ident">TryRecvError</span>::<span class="ident">Disconnected</span> <span class="op">=></span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">server</span>) <span class="op">=</span> <span class="ident">server</span>.<span class="ident">take</span>() {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">poll</span>.<span class="ident">deregister</span>(<span class="kw-2">&</span><span class="ident">server</span>);
}
<span class="kw">return</span>;
}
},
},
<span class="kw">_</span> <span class="op">=></span> <span class="macro">unreachable</span><span class="macro">!</span>(),
}
}
}
});
(<span class="ident">readiness</span>, <span class="ident">tx</span>)
}
<span class="kw">fn</span> <span class="ident">create_tcp_listener</span>(
<span class="ident">addr</span>: <span class="ident">net</span>::<span class="ident">SocketAddr</span>, <span class="ident">backlog</span>: <span class="ident">i32</span>,
) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">net</span>::<span class="ident">TcpListener</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">builder</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">addr</span> {
<span class="ident">net</span>::<span class="ident">SocketAddr</span>::<span class="ident">V4</span>(<span class="kw">_</span>) <span class="op">=></span> <span class="ident">TcpBuilder</span>::<span class="ident">new_v4</span>()<span class="question-mark">?</span>,
<span class="ident">net</span>::<span class="ident">SocketAddr</span>::<span class="ident">V6</span>(<span class="kw">_</span>) <span class="op">=></span> <span class="ident">TcpBuilder</span>::<span class="ident">new_v6</span>()<span class="question-mark">?</span>,
};
<span class="ident">builder</span>.<span class="ident">reuse_address</span>(<span class="bool-val">true</span>)<span class="question-mark">?</span>;
<span class="ident">builder</span>.<span class="ident">bind</span>(<span class="ident">addr</span>)<span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(<span class="ident">builder</span>.<span class="ident">listen</span>(<span class="ident">backlog</span>)<span class="question-mark">?</span>)
}
<span class="doccomment">/// This function defines errors that are per-connection. Which basically</span>
<span class="doccomment">/// means that if we get this error from `accept()` system call it means</span>
<span class="doccomment">/// next connection might be ready to be accepted.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// All other errors will incur a timeout before next `accept()` is performed.</span>
<span class="doccomment">/// The timeout is useful to handle resource exhaustion errors like ENFILE</span>
<span class="doccomment">/// and EMFILE. Otherwise, could enter into tight loop.</span>
<span class="kw">fn</span> <span class="ident">connection_error</span>(<span class="ident">e</span>: <span class="kw-2">&</span><span class="ident">io</span>::<span class="ident">Error</span>) <span class="op">-></span> <span class="ident">bool</span> {
<span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">ConnectionRefused</span>
<span class="op">||</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">ConnectionAborted</span>
<span class="op">||</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">ConnectionReset</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>⏎</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>