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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_98934c98f70735fe3a272005a9eb8736.html">uvw</a></li> </ul>
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<div class="title">request.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef UVW_REQUEST_INCLUDE_H</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define UVW_REQUEST_INCLUDE_H</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>  </div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <utility></span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <memory></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <uv.h></span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "resource.hpp"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">namespace </span><a class="code" href="namespaceuvw.html">uvw</a> {</div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> U></div>
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<div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="classuvw_1_1Request.html"> 21</a></span> <span class="keyword">class </span><a class="code" href="classuvw_1_1Request.html">Request</a>: <span class="keyword">public</span> <a class="code" href="classuvw_1_1Resource.html">Resource</a><T, U> {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">static</span> <span class="keyword">auto</span> reserve(U *req) {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">auto</span> ptr = <span class="keyword">static_cast<</span>T*<span class="keyword">></span>(req->data)->shared_from_this();</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  ptr->reset();</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">return</span> ptr;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</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>  <span class="keyword">template</span><<span class="keyword">typename</span> E></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> defaultCallback(U *req, <span class="keywordtype">int</span> status) {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">auto</span> ptr = reserve(req);</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">if</span>(status) { ptr->publish(<a class="code" href="structuvw_1_1ErrorEvent.html">ErrorEvent</a>{status}); }</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">else</span> { ptr->publish(E{}); }</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</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>  <span class="keyword">template</span><<span class="keyword">typename</span> F, <span class="keyword">typename</span>... Args></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">auto</span> invoke(F &&f, Args&&... args) {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">if</span> constexpr(std::is_void_v<std::invoke_result_t<F, Args...>>) {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  std::forward<F>(f)(std::forward<Args>(args)...);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  this->leak();</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">auto</span> err = std::forward<F>(f)(std::forward<Args>(args)...);</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span>(err) { <a class="code" href="classuvw_1_1Emitter.html">Emitter<T>::publish</a>(<a class="code" href="structuvw_1_1ErrorEvent.html">ErrorEvent</a>{err}); }</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">else</span> { this->leak(); }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</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> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">using</span> <a class="code" href="classuvw_1_1Resource.html">Resource<T, U>::Resource</a>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
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<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classuvw_1_1Request.html#a27f8819a0dff5c3bec4812409884c398"> 64</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classuvw_1_1Request.html#a27f8819a0dff5c3bec4812409884c398">cancel</a>() {</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> (0 == uv_cancel(this-><span class="keyword">template</span> get<uv_req_t>()));</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div>
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<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="classuvw_1_1Request.html#a8eb66ee3f2602eb89367167fb08f73e6"> 72</a></span>  std::size_t <a class="code" href="classuvw_1_1Request.html#a8eb66ee3f2602eb89367167fb08f73e6">size</a>() const noexcept {</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> uv_req_size(this-><span class="keyword">template</span> get<uv_req_t>()-><a class="code" href="namespaceuvw.html#accb319301464a2946fc3cf88218fed01">type</a>);</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> };</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> }</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#endif </span><span class="comment">// UVW_REQUEST_INCLUDE_H</span></div>
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<div class="ttc" id="aclassuvw_1_1Emitter_html"><div class="ttname"><a href="classuvw_1_1Emitter.html">uvw::Emitter</a></div><div class="ttdoc">Event emitter base class.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8h_source.html#l00087">emitter.h:87</a></div></div>
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<div class="ttc" id="aclassuvw_1_1Request_html"><div class="ttname"><a href="classuvw_1_1Request.html">uvw::Request</a></div><div class="ttdoc">Request base class.</div><div class="ttdef"><b>Definition:</b> <a href="request_8hpp_source.html#l00021">request.hpp:21</a></div></div>
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<div class="ttc" id="aclassuvw_1_1Request_html_a27f8819a0dff5c3bec4812409884c398"><div class="ttname"><a href="classuvw_1_1Request.html#a27f8819a0dff5c3bec4812409884c398">uvw::Request::cancel</a></div><div class="ttdeci">bool cancel()</div><div class="ttdoc">Cancels a pending request.</div><div class="ttdef"><b>Definition:</b> <a href="request_8hpp_source.html#l00064">request.hpp:64</a></div></div>
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<div class="ttc" id="aclassuvw_1_1Request_html_a8eb66ee3f2602eb89367167fb08f73e6"><div class="ttname"><a href="classuvw_1_1Request.html#a8eb66ee3f2602eb89367167fb08f73e6">uvw::Request::size</a></div><div class="ttdeci">std::size_t size() const noexcept</div><div class="ttdoc">Returns the size of the underlying request type.</div><div class="ttdef"><b>Definition:</b> <a href="request_8hpp_source.html#l00072">request.hpp:72</a></div></div>
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<div class="ttc" id="aclassuvw_1_1Resource_html"><div class="ttname"><a href="classuvw_1_1Resource.html">uvw::Resource</a></div><div class="ttdoc">Common class for almost all the resources available in uvw.</div><div class="ttdef"><b>Definition:</b> <a href="resource_8hpp_source.html#l00020">resource.hpp:20</a></div></div>
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<div class="ttc" id="anamespaceuvw_html"><div class="ttname"><a href="namespaceuvw.html">uvw</a></div><div class="ttdoc">uvw default namespace.</div><div class="ttdef"><b>Definition:</b> <a href="async_8h_source.html#l00010">async.h:10</a></div></div>
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<div class="ttc" id="anamespaceuvw_html_accb319301464a2946fc3cf88218fed01"><div class="ttname"><a href="namespaceuvw.html#accb319301464a2946fc3cf88218fed01">uvw::type</a></div><div class="ttdeci">static constexpr std::uint32_t type() noexcept</div><div class="ttdoc">Returns a numerical identifier for a given type.</div><div class="ttdef"><b>Definition:</b> <a href="type__info_8hpp_source.html#l00063">type_info.hpp:63</a></div></div>
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<div class="ttc" id="astructuvw_1_1ErrorEvent_html"><div class="ttname"><a href="structuvw_1_1ErrorEvent.html">uvw::ErrorEvent</a></div><div class="ttdoc">The ErrorEvent event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8h_source.html#l00025">emitter.h:25</a></div></div>
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