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<li class="navelem"><a class="el" href="dir_3c80010775d22af2067790ecc9cdcf9d.html">librf</a></li><li class="navelem"><a class="el" href="dir_54ae0e78d997f6903cdf0996223d047f.html">src</a></li> </ul>
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<div class="title">future.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>  </div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>  </div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="keyword">namespace </span>resumef</div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> {</div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Ty></div>
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<div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="structresumef_1_1future__t.html"> 14</a></span>  <span class="keyword">struct </span>[[nodiscard]] <a class="code" href="structresumef_1_1future__t.html">future_t</a></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="keyword">using</span> value_type = _Ty;</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keyword">using</span> <a class="code" href="structresumef_1_1state__t.html">state_type</a> = <a class="code" href="structresumef_1_1state__t.html">state_t<value_type></a>;</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keyword">using</span> promise_type = promise_t<value_type>;</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keyword">using</span> <a class="code" href="structresumef_1_1future__t.html">future_type</a> = <a class="code" href="structresumef_1_1future__t.html">future_t<value_type></a>;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">using</span> lock_type = <span class="keyword">typename</span> <a class="code" href="structresumef_1_1spinlock.html">state_type::lock_type</a>;</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <a class="code" href="structresumef_1_1counted__ptr.html">counted_ptr<state_type></a> _state;</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <a class="code" href="structresumef_1_1future__t.html">future_t</a>(<a class="code" href="structresumef_1_1counted__ptr.html">counted_ptr<state_type></a> _st) noexcept</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  :_state(std::move(_st)) {}</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <a class="code" href="structresumef_1_1future__t.html">future_t</a>(<span class="keyword">const</span> <a class="code" href="structresumef_1_1future__t.html">future_t</a>&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <a class="code" href="structresumef_1_1future__t.html">future_t</a>(<a class="code" href="structresumef_1_1future__t.html">future_t</a>&&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="code" href="structresumef_1_1future__t.html">future_t</a>& operator = (<span class="keyword">const</span> <a class="code" href="structresumef_1_1future__t.html">future_t</a>&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="structresumef_1_1future__t.html">future_t</a>& operator = (<a class="code" href="structresumef_1_1future__t.html">future_t</a>&&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordtype">bool</span> await_ready() noexcept</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">return</span> _state->future_await_ready();</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  }</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">template</span><<span class="keyword">class</span> _PromiseT, <span class="keyword">typename</span> = std::enable_if_t<traits::is_promise_v<_PromiseT>>></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">void</span> await_suspend(coroutine_handle<_PromiseT> handler)</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  _state->future_await_suspend(handler);</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  value_type await_resume()</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> _state->future_await_resume();</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  };</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> }</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#ifndef DOXYGEN_SKIP_PROPERTY</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">namespace </span>std {</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">namespace </span>experimental {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">/*If the coroutine is defined as task<float> foo(std::string x, bool flag);, </span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> then its Promise type is std::coroutine_traits<task<float>, std::string, bool>::promise_type.</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> If the coroutine is a non-static member function, such as task<void> my_class::method1(int x) const;, </span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> its Promise type is std::coroutine_traits<task<void>, const my_class&, int>::promise_type.</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> _Ty, <span class="keyword">typename</span>... Args></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">struct </span>coroutine_traits<resumef::future_t<_Ty>, Args...></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">typedef</span> resumef::promise_t<_Ty> promise_type;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  };</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> } <span class="comment">// namespace std::experimental</span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#endif //DOXYGEN_SKIP_PROPERTY</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="astructresumef_1_1future__t_html"><div class="ttname"><a href="structresumef_1_1future__t.html">resumef::future_t</a></div><div class="ttdoc">用于resumef协程的返回值。</div><div class="ttdef"><b>Definition:</b> future.h:14</div></div>
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<div class="ttc" id="astructresumef_1_1counted__ptr_html"><div class="ttname"><a href="structresumef_1_1counted__ptr.html">resumef::counted_ptr< state_type ></a></div></div>
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<div class="ttc" id="astructresumef_1_1spinlock_html"><div class="ttname"><a href="structresumef_1_1spinlock.html">resumef::spinlock</a></div><div class="ttdoc">一个自旋锁实现。</div><div class="ttdef"><b>Definition:</b> spinlock.h:14</div></div>
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<div class="ttc" id="astructresumef_1_1state__t_html"><div class="ttname"><a href="structresumef_1_1state__t.html">resumef::state_t</a></div><div class="ttdoc">专用于future_t<>的state类。</div><div class="ttdef"><b>Definition:</b> state.h:217</div></div>
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