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基于C++ Coroutines提案 ‘Stackless Resumable Functions’编写的协程库
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  63.   <ul>

  64. <li class="navelem"><b>resumef</b></li><li class="navelem"><a class="el" href="structresumef_1_1event__t.html">event_t</a></li>  </ul>

  65. </div>

  66. </div><!-- top -->

  67. <div class="header">

  68.   <div class="summary">

  69. <a href="#pub-methods">Public 成员函数</a> &#124;

  70. <a href="structresumef_1_1event__t-members.html">所有成员列表</a>  </div>

  71.   <div class="headertitle">

  72. <div class="title">resumef::event_t结构体 参考</div>  </div>

  73. </div><!--header-->

  74. <div class="contents">

  75. 

  76. <p>用于协程的事件。  

  77.  <a href="structresumef_1_1event__t.html#details">更多...</a></p>

  78. <table class="memberdecls">

  79. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>

  80. Public 成员函数</h2></td></tr>

  81. <tr class="memitem:a5ae54675783d984c3defd7b2093c91a1"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#a5ae54675783d984c3defd7b2093c91a1">event_t</a> (bool initially=false)</td></tr>

  82. <tr class="memdesc:a5ae54675783d984c3defd7b2093c91a1"><td class="mdescLeft">&#160;</td><td class="mdescRight">构造一个事件。  <a href="structresumef_1_1event__t.html#a5ae54675783d984c3defd7b2093c91a1">更多...</a><br /></td></tr>

  83. <tr class="separator:a5ae54675783d984c3defd7b2093c91a1"><td class="memSeparator" colspan="2">&#160;</td></tr>

  84. <tr class="memitem:ab3a49adfb8c1cfcfa606cca3148f946a"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#ab3a49adfb8c1cfcfa606cca3148f946a">event_t</a> (std::adopt_lock_t)</td></tr>

  85. <tr class="memdesc:ab3a49adfb8c1cfcfa606cca3148f946a"><td class="mdescLeft">&#160;</td><td class="mdescRight">构造一个无效的事件。  <a href="structresumef_1_1event__t.html#ab3a49adfb8c1cfcfa606cca3148f946a">更多...</a><br /></td></tr>

  86. <tr class="separator:ab3a49adfb8c1cfcfa606cca3148f946a"><td class="memSeparator" colspan="2">&#160;</td></tr>

  87. <tr class="memitem:af742aa0454758c3def349cacae86c229"><td class="memItemLeft" align="right" valign="top"><a id="af742aa0454758c3def349cacae86c229"></a>

  88. &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#af742aa0454758c3def349cacae86c229">~event_t</a> ()</td></tr>

  89. <tr class="memdesc:af742aa0454758c3def349cacae86c229"><td class="mdescLeft">&#160;</td><td class="mdescRight">采用shared_ptr&lt;&gt;来保存内部的事件实现。故不必担心正在被等待的协程，因为事件提前销毁而出现异常。 <br /></td></tr>

  90. <tr class="separator:af742aa0454758c3def349cacae86c229"><td class="memSeparator" colspan="2">&#160;</td></tr>

  91. <tr class="memitem:aac7bf6f81982126225125354769ad695"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#aac7bf6f81982126225125354769ad695">signal_all</a> () const noexcept</td></tr>

  92. <tr class="memdesc:aac7bf6f81982126225125354769ad695"><td class="mdescLeft">&#160;</td><td class="mdescRight">向所有正在等待的协程触发一次信号。  <a href="structresumef_1_1event__t.html#aac7bf6f81982126225125354769ad695">更多...</a><br /></td></tr>

  93. <tr class="separator:aac7bf6f81982126225125354769ad695"><td class="memSeparator" colspan="2">&#160;</td></tr>

  94. <tr class="memitem:ab9500bb2438c27adb4b34988eaa04ff9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#ab9500bb2438c27adb4b34988eaa04ff9">signal</a> () const noexcept</td></tr>

  95. <tr class="memdesc:ab9500bb2438c27adb4b34988eaa04ff9"><td class="mdescLeft">&#160;</td><td class="mdescRight">触发一次信号。  <a href="structresumef_1_1event__t.html#ab9500bb2438c27adb4b34988eaa04ff9">更多...</a><br /></td></tr>

  96. <tr class="separator:ab9500bb2438c27adb4b34988eaa04ff9"><td class="memSeparator" colspan="2">&#160;</td></tr>

  97. <tr class="memitem:a8da187ffff9c6aee7e9bad6d97af9f4a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#a8da187ffff9c6aee7e9bad6d97af9f4a">reset</a> () const noexcept</td></tr>

  98. <tr class="memdesc:a8da187ffff9c6aee7e9bad6d97af9f4a"><td class="mdescLeft">&#160;</td><td class="mdescRight">重置信号。  <a href="structresumef_1_1event__t.html#a8da187ffff9c6aee7e9bad6d97af9f4a">更多...</a><br /></td></tr>

  99. <tr class="separator:a8da187ffff9c6aee7e9bad6d97af9f4a"><td class="memSeparator" colspan="2">&#160;</td></tr>

  100. <tr class="memitem:a9656c785d3c1c1d57560137894aa1be3"><td class="memItemLeft" align="right" valign="top">awaiter&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#a9656c785d3c1c1d57560137894aa1be3">operator co_await</a> () const noexcept</td></tr>

  101. <tr class="memdesc:a9656c785d3c1c1d57560137894aa1be3"><td class="mdescLeft">&#160;</td><td class="mdescRight">在协程中等待信号触发。  <a href="structresumef_1_1event__t.html#a9656c785d3c1c1d57560137894aa1be3">更多...</a><br /></td></tr>

  102. <tr class="separator:a9656c785d3c1c1d57560137894aa1be3"><td class="memSeparator" colspan="2">&#160;</td></tr>

  103. <tr class="memitem:a1231525d8406b1f69b563e84dc7fead7"><td class="memItemLeft" align="right" valign="top">awaiter&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#a1231525d8406b1f69b563e84dc7fead7">wait</a> () const noexcept</td></tr>

  104. <tr class="memdesc:a1231525d8406b1f69b563e84dc7fead7"><td class="mdescLeft">&#160;</td><td class="mdescRight">在协程中等待信号触发。  <a href="structresumef_1_1event__t.html#a1231525d8406b1f69b563e84dc7fead7">更多...</a><br /></td></tr>

  105. <tr class="separator:a1231525d8406b1f69b563e84dc7fead7"><td class="memSeparator" colspan="2">&#160;</td></tr>

  106. <tr class="memitem:ac3d2ceb787ca321855731e40646d4112"><td class="memTemplParams" colspan="2">template&lt;class _Rep , class _Period &gt; </td></tr>

  107. <tr class="memitem:ac3d2ceb787ca321855731e40646d4112"><td class="memTemplItemLeft" align="right" valign="top">timeout_awaiter&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#ac3d2ceb787ca321855731e40646d4112">wait_for</a> (const std::chrono::duration&lt; _Rep, _Period &gt; &amp;dt) const noexcept</td></tr>

  108. <tr class="memdesc:ac3d2ceb787ca321855731e40646d4112"><td class="mdescLeft">&#160;</td><td class="mdescRight">在协程中等待信号触发，直到超时。  <a href="structresumef_1_1event__t.html#ac3d2ceb787ca321855731e40646d4112">更多...</a><br /></td></tr>

  109. <tr class="separator:ac3d2ceb787ca321855731e40646d4112"><td class="memSeparator" colspan="2">&#160;</td></tr>

  110. <tr class="memitem:a083cda88807a10c4f68b134ce32c597b"><td class="memTemplParams" colspan="2">template&lt;class _Clock , class _Duration &gt; </td></tr>

  111. <tr class="memitem:a083cda88807a10c4f68b134ce32c597b"><td class="memTemplItemLeft" align="right" valign="top">timeout_awaiter&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structresumef_1_1event__t.html#a083cda88807a10c4f68b134ce32c597b">wait_until</a> (const std::chrono::time_point&lt; _Clock, _Duration &gt; &amp;tp) const noexcept</td></tr>

  112. <tr class="memdesc:a083cda88807a10c4f68b134ce32c597b"><td class="mdescLeft">&#160;</td><td class="mdescRight">在协程中等待信号触发，直到超时。  <a href="structresumef_1_1event__t.html#a083cda88807a10c4f68b134ce32c597b">更多...</a><br /></td></tr>

  113. <tr class="separator:a083cda88807a10c4f68b134ce32c597b"><td class="memSeparator" colspan="2">&#160;</td></tr>

  114. </table>

  115. <a name="details" id="details"></a><h2 class="groupheader">详细描述</h2>

  116. <div class="textblock"><p>用于协程的事件。 </p>

  117. <p>用于同步不同线程里运行的协程。 </p>

  118. </div><h2 class="groupheader">构造及析构函数说明</h2>

  119. <a id="a5ae54675783d984c3defd7b2093c91a1"></a>

  120. <h2 class="memtitle"><span class="permalink"><a href="#a5ae54675783d984c3defd7b2093c91a1">&#9670;&nbsp;</a></span>event_t() <span class="overload">[1/2]</span></h2>

  121. 

  122. <div class="memitem">

  123. <div class="memproto">

  124.       <table class="memname">

  125.         <tr>

  126.           <td class="memname">resumef::event_t::event_t </td>

  127.           <td>(</td>

  128.           <td class="paramtype">bool&#160;</td>

  129.           <td class="paramname"><em>initially</em> = <code>false</code></td><td>)</td>

  130.           <td></td>

  131.         </tr>

  132.       </table>

  133. </div><div class="memdoc">

  134. 

  135. <p>构造一个事件。 </p>

  136. <dl class="params"><dt>参数</dt><dd>

  137.   <table class="params">

  138.     <tr><td class="paramname">initially</td><td>初始是否触发一次信号。 </td></tr>

  139.   </table>

  140.   </dd>

  141. </dl>

  142. 

  143. </div>

  144. </div>

  145. <a id="ab3a49adfb8c1cfcfa606cca3148f946a"></a>

  146. <h2 class="memtitle"><span class="permalink"><a href="#ab3a49adfb8c1cfcfa606cca3148f946a">&#9670;&nbsp;</a></span>event_t() <span class="overload">[2/2]</span></h2>

  147. 

  148. <div class="memitem">

  149. <div class="memproto">

  150.       <table class="memname">

  151.         <tr>

  152.           <td class="memname">resumef::event_t::event_t </td>

  153.           <td>(</td>

  154.           <td class="paramtype">std::adopt_lock_t&#160;</td>

  155.           <td class="paramname"></td><td>)</td>

  156.           <td></td>

  157.         </tr>

  158.       </table>

  159. </div><div class="memdoc">

  160. 

  161. <p>构造一个无效的事件。 </p>

  162. <p>如果用于后续保存另外一个事件，则应当使用此构造函数，便于节省一次不必要的内部初始化。 </p>

  163. 

  164. </div>

  165. </div>

  166. <h2 class="groupheader">成员函数说明</h2>

  167. <a id="a9656c785d3c1c1d57560137894aa1be3"></a>

  168. <h2 class="memtitle"><span class="permalink"><a href="#a9656c785d3c1c1d57560137894aa1be3">&#9670;&nbsp;</a></span>operator co_await()</h2>

  169. 

  170. <div class="memitem">

  171. <div class="memproto">

  172. <table class="mlabels">

  173.   <tr>

  174.   <td class="mlabels-left">

  175.       <table class="memname">

  176.         <tr>

  177.           <td class="memname">awaiter resumef::event_t::operator co_await </td>

  178.           <td>(</td>

  179.           <td class="paramname"></td><td>)</td>

  180.           <td> const</td>

  181.         </tr>

  182.       </table>

  183.   </td>

  184.   <td class="mlabels-right">

  185. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  186.   </tr>

  187. </table>

  188. </div><div class="memdoc">

  189. 

  190. <p>在协程中等待信号触发。 </p>

  191. <dl class="section see"><dt>参见</dt><dd>等同于co_await <a class="el" href="structresumef_1_1event__t.html#a1231525d8406b1f69b563e84dc7fead7" title="在协程中等待信号触发。">wait()</a>。 </dd></dl>

  192. <dl class="section attention"><dt>注意</dt><dd>只能在协程中调用。 </dd></dl>

  193. 

  194. </div>

  195. </div>

  196. <a id="a8da187ffff9c6aee7e9bad6d97af9f4a"></a>

  197. <h2 class="memtitle"><span class="permalink"><a href="#a8da187ffff9c6aee7e9bad6d97af9f4a">&#9670;&nbsp;</a></span>reset()</h2>

  198. 

  199. <div class="memitem">

  200. <div class="memproto">

  201. <table class="mlabels">

  202.   <tr>

  203.   <td class="mlabels-left">

  204.       <table class="memname">

  205.         <tr>

  206.           <td class="memname">void resumef::event_t::reset </td>

  207.           <td>(</td>

  208.           <td class="paramname"></td><td>)</td>

  209.           <td> const</td>

  210.         </tr>

  211.       </table>

  212.   </td>

  213.   <td class="mlabels-right">

  214. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  215.   </tr>

  216. </table>

  217. </div><div class="memdoc">

  218. 

  219. <p>重置信号。 </p>

  220. <dl class="section attention"><dt>注意</dt><dd>非协程中也可以使用。 </dd></dl>

  221. 

  222. </div>

  223. </div>

  224. <a id="ab9500bb2438c27adb4b34988eaa04ff9"></a>

  225. <h2 class="memtitle"><span class="permalink"><a href="#ab9500bb2438c27adb4b34988eaa04ff9">&#9670;&nbsp;</a></span>signal()</h2>

  226. 

  227. <div class="memitem">

  228. <div class="memproto">

  229. <table class="mlabels">

  230.   <tr>

  231.   <td class="mlabels-left">

  232.       <table class="memname">

  233.         <tr>

  234.           <td class="memname">void resumef::event_t::signal </td>

  235.           <td>(</td>

  236.           <td class="paramname"></td><td>)</td>

  237.           <td> const</td>

  238.         </tr>

  239.       </table>

  240.   </td>

  241.   <td class="mlabels-right">

  242. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  243.   </tr>

  244. </table>

  245. </div><div class="memdoc">

  246. 

  247. <p>触发一次信号。 </p>

  248. <p>如果有正在等待的协程，则最先等待的协程会被唤醒。<br  />

  249. 如果没有正在等待的协程，则信号触发次数加一。之后有协程调用wait()，则会直接返回。 </p><dl class="section attention"><dt>注意</dt><dd>非协程中也可以使用。 </dd></dl>

  250. 

  251. </div>

  252. </div>

  253. <a id="aac7bf6f81982126225125354769ad695"></a>

  254. <h2 class="memtitle"><span class="permalink"><a href="#aac7bf6f81982126225125354769ad695">&#9670;&nbsp;</a></span>signal_all()</h2>

  255. 

  256. <div class="memitem">

  257. <div class="memproto">

  258. <table class="mlabels">

  259.   <tr>

  260.   <td class="mlabels-left">

  261.       <table class="memname">

  262.         <tr>

  263.           <td class="memname">void resumef::event_t::signal_all </td>

  264.           <td>(</td>

  265.           <td class="paramname"></td><td>)</td>

  266.           <td> const</td>

  267.         </tr>

  268.       </table>

  269.   </td>

  270.   <td class="mlabels-right">

  271. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  272.   </tr>

  273. </table>

  274. </div><div class="memdoc">

  275. 

  276. <p>向所有正在等待的协程触发一次信号。 </p>

  277. <dl class="section attention"><dt>注意</dt><dd>非协程中也可以使用。 </dd></dl>

  278. 

  279. </div>

  280. </div>

  281. <a id="a1231525d8406b1f69b563e84dc7fead7"></a>

  282. <h2 class="memtitle"><span class="permalink"><a href="#a1231525d8406b1f69b563e84dc7fead7">&#9670;&nbsp;</a></span>wait()</h2>

  283. 

  284. <div class="memitem">

  285. <div class="memproto">

  286. <table class="mlabels">

  287.   <tr>

  288.   <td class="mlabels-left">

  289.       <table class="memname">

  290.         <tr>

  291.           <td class="memname">awaiter resumef::event_t::wait </td>

  292.           <td>(</td>

  293.           <td class="paramname"></td><td>)</td>

  294.           <td> const</td>

  295.         </tr>

  296.       </table>

  297.   </td>

  298.   <td class="mlabels-right">

  299. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  300.   </tr>

  301. </table>

  302. </div><div class="memdoc">

  303. 

  304. <p>在协程中等待信号触发。 </p>

  305. <p>如果信号已经触发，则立即返回true。<br  />

  306. 否则，当前协程被阻塞，直到信号被触发后唤醒。 消耗一次信号触发次数。 </p><dl class="retval"><dt>返回值</dt><dd>

  307.   <table class="retval">

  308.     <tr><td class="paramname">bool</td><td>[co_await] 返回是否等到了信号 </td></tr>

  309.   </table>

  310.   </dd>

  311. </dl>

  312. <dl class="section attention"><dt>注意</dt><dd>只能在协程中调用。 </dd></dl>

  313. 

  314. </div>

  315. </div>

  316. <a id="ac3d2ceb787ca321855731e40646d4112"></a>

  317. <h2 class="memtitle"><span class="permalink"><a href="#ac3d2ceb787ca321855731e40646d4112">&#9670;&nbsp;</a></span>wait_for()</h2>

  318. 

  319. <div class="memitem">

  320. <div class="memproto">

  321. <div class="memtemplate">

  322. template&lt;class _Rep , class _Period &gt; </div>

  323. <table class="mlabels">

  324.   <tr>

  325.   <td class="mlabels-left">

  326.       <table class="memname">

  327.         <tr>

  328.           <td class="memname">timeout_awaiter resumef::event_t::wait_for </td>

  329.           <td>(</td>

  330.           <td class="paramtype">const std::chrono::duration&lt; _Rep, _Period &gt; &amp;&#160;</td>

  331.           <td class="paramname"><em>dt</em></td><td>)</td>

  332.           <td> const</td>

  333.         </tr>

  334.       </table>

  335.   </td>

  336.   <td class="mlabels-right">

  337. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  338.   </tr>

  339. </table>

  340. </div><div class="memdoc">

  341. 

  342. <p>在协程中等待信号触发，直到超时。 </p>

  343. <p>如果信号已经触发，则立即返回true。<br  />

  344. 否则，当前协程被阻塞，直到信号被触发后，或者超时后唤醒。 如果等到了信号，则消耗一次信号触发次数。 </p><dl class="params"><dt>参数</dt><dd>

  345.   <table class="params">

  346.     <tr><td class="paramname">dt</td><td>超时时长 </td></tr>

  347.   </table>

  348.   </dd>

  349. </dl>

  350. <dl class="retval"><dt>返回值</dt><dd>

  351.   <table class="retval">

  352.     <tr><td class="paramname">bool</td><td>[co_await] 等到了信号返回true，超时了返回false。 </td></tr>

  353.   </table>

  354.   </dd>

  355. </dl>

  356. <dl class="section attention"><dt>注意</dt><dd>只能在协程中调用。 </dd></dl>

  357. 

  358. </div>

  359. </div>

  360. <a id="a083cda88807a10c4f68b134ce32c597b"></a>

  361. <h2 class="memtitle"><span class="permalink"><a href="#a083cda88807a10c4f68b134ce32c597b">&#9670;&nbsp;</a></span>wait_until()</h2>

  362. 

  363. <div class="memitem">

  364. <div class="memproto">

  365. <div class="memtemplate">

  366. template&lt;class _Clock , class _Duration &gt; </div>

  367. <table class="mlabels">

  368.   <tr>

  369.   <td class="mlabels-left">

  370.       <table class="memname">

  371.         <tr>

  372.           <td class="memname">timeout_awaiter resumef::event_t::wait_until </td>

  373.           <td>(</td>

  374.           <td class="paramtype">const std::chrono::time_point&lt; _Clock, _Duration &gt; &amp;&#160;</td>

  375.           <td class="paramname"><em>tp</em></td><td>)</td>

  376.           <td> const</td>

  377.         </tr>

  378.       </table>

  379.   </td>

  380.   <td class="mlabels-right">

  381. <span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>

  382.   </tr>

  383. </table>

  384. </div><div class="memdoc">

  385. 

  386. <p>在协程中等待信号触发，直到超时。 </p>

  387. <p>如果信号已经触发，则立即返回true。<br  />

  388. 否则，当前协程被阻塞，直到信号被触发后，或者超时后唤醒。 如果等到了信号，则消耗一次信号触发次数。 </p><dl class="params"><dt>参数</dt><dd>

  389.   <table class="params">

  390.     <tr><td class="paramname">tp</td><td>超时时刻 </td></tr>

  391.   </table>

  392.   </dd>

  393. </dl>

  394. <dl class="retval"><dt>返回值</dt><dd>

  395.   <table class="retval">

  396.     <tr><td class="paramname">bool</td><td>[co_await] 等到了信号返回true，超时了返回false。 </td></tr>

  397.   </table>

  398.   </dd>

  399. </dl>

  400. <dl class="section attention"><dt>注意</dt><dd>只能在协程中调用。 </dd></dl>

  401. 

  402. </div>

  403. </div>

  404. <hr/>该结构体的文档由以下文件生成:<ul>

  405. <li>librf/src/<a class="el" href="event__v2_8h_source.html">event_v2.h</a></li>

  406. </ul>

  407. </div><!-- contents -->

  408. <!-- start footer part -->

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  410. 制作者 &#160;<a href="http://www.doxygen.org/index.html">

  411. <img class="footer" src="doxygen.png" alt="doxygen"/>

  412. </a> 1.8.17

  413. </small></address>

  414. </body>

  415. </html>