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<div id="projectname">GpgFrontend Project
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<div id="projectbrief">A Free, Powerful, Easy-to-Use, Compact, Cross-Platform, and Installation-Free OpenPGP(pgp) Crypto Tool.</div>
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<div class="title">Task.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#ifndef GPGFRONTEND_TASK_H</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#define GPGFRONTEND_TASK_H</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor">#include &lt;stack&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="preprocessor">#include &lt;utility&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="preprocessor">#include &quot;core/GpgFrontendCore.h&quot;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceGpgFrontend_1_1Thread.html">GpgFrontend::Thread</a> {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="keyword">class </span>TaskRunner;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classGpgFrontend_1_1Thread_1_1Task.html"> 45</a></span>&#160;<span class="keyword">class </span>GPGFRONTEND_CORE_EXPORT <a class="code" href="classGpgFrontend_1_1Thread_1_1Task.html">Task</a> : <span class="keyword">public</span> QObject, <span class="keyword">public</span> QRunnable {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; Q_OBJECT</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keyword">class </span><a class="code" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html">DataObject</a>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keyword">using</span> DataObjectPtr = std::shared_ptr&lt;DataObject&gt;; </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keyword">using</span> TaskRunnable = std::function&lt;int(DataObjectPtr)&gt;; </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">using</span> TaskCallback = std::function&lt;void(<span class="keywordtype">int</span>, DataObjectPtr)&gt;; </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classGpgFrontend_1_1Thread_1_1TaskRunner.html">TaskRunner</a>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html"> 59</a></span>&#160; <span class="keyword">class </span>GPGFRONTEND_CORE_EXPORT <a class="code" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html">DataObject</a> {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="structGpgFrontend_1_1Thread_1_1Task_1_1DataObject_1_1Destructor.html"> 61</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structGpgFrontend_1_1Thread_1_1Task_1_1DataObject_1_1Destructor.html">Destructor</a> {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keyword">const</span> <span class="keywordtype">void</span> *p_obj;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; void (*destroy)(<span class="keyword">const</span> <span class="keywordtype">void</span> *);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; };</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordtype">size_t</span> GetObjectSize();</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html#a521dccfd42e13769b4edc4286318cc4c"> 80</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html#a521dccfd42e13769b4edc4286318cc4c">AppendObject</a>(T &amp;&amp;obj) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; SPDLOG_TRACE(<span class="stringliteral">&quot;append object: {}&quot;</span>, <span class="keyword">static_cast&lt;</span><span class="keywordtype">void</span> *<span class="keyword">&gt;</span>(<span class="keyword">this</span>));</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keyword">auto</span> *obj_dstr = this-&gt;get_heap_ptr(<span class="keyword">sizeof</span>(T));</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keyword">new</span> ((<span class="keywordtype">void</span> *)obj_dstr-&gt;p_obj) T(std::forward&lt;T&gt;(obj));</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">if</span> (std::is_class_v&lt;T&gt;) {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keyword">auto</span> destructor = [](<span class="keyword">const</span> <span class="keywordtype">void</span> *x) {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span>T *<span class="keyword">&gt;</span>(x)-&gt;~T();</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; };</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; obj_dstr-&gt;destroy = destructor;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; obj_dstr-&gt;destroy = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; data_objects_.push(obj_dstr);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html#a5812bb84c6241e89f8b8b04d2a2f3b55"> 104</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html#a5812bb84c6241e89f8b8b04d2a2f3b55">AppendObject</a>(T *obj) {</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; SPDLOG_TRACE(<span class="stringliteral">&quot;called: {}&quot;</span>, <span class="keyword">static_cast&lt;</span><span class="keywordtype">void</span> *<span class="keyword">&gt;</span>(<span class="keyword">this</span>));</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keyword">auto</span> *obj_dstr = this-&gt;get_heap_ptr(<span class="keyword">sizeof</span>(T));</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keyword">auto</span> *ptr_heap = <span class="keyword">new</span> ((<span class="keywordtype">void</span> *)obj_dstr-&gt;p_obj) T(std::move(*obj));</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">if</span> (std::is_class_v&lt;T&gt;) {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; SPDLOG_TRACE(<span class="stringliteral">&quot;is class&quot;</span>);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keyword">auto</span> destructor = [](<span class="keyword">const</span> <span class="keywordtype">void</span> *x) {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span>T *<span class="keyword">&gt;</span>(x)-&gt;~T();</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; };</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; obj_dstr-&gt;destroy = destructor;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; obj_dstr-&gt;destroy = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; }</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; data_objects_.push(std::move(obj_dstr));</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html#a5ef5ddec0b82017cc4ad7f34b9b13f64"> 127</a></span>&#160; T <a class="code" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html#a5ef5ddec0b82017cc4ad7f34b9b13f64">PopObject</a>() {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; SPDLOG_TRACE(<span class="stringliteral">&quot;pop object: {}&quot;</span>, <span class="keyword">static_cast&lt;</span><span class="keywordtype">void</span> *<span class="keyword">&gt;</span>(<span class="keyword">this</span>));</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordflow">if</span> (data_objects_.empty()) <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">&quot;No object to pop&quot;</span>);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keyword">auto</span> *obj_dstr = data_objects_.top();</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keyword">auto</span> *heap_ptr = (T *)obj_dstr-&gt;p_obj;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keyword">auto</span> obj = std::move(*(T *)(heap_ptr));</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; this-&gt;free_heap_ptr(obj_dstr);</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; data_objects_.pop();</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">return</span> obj;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; }</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; ~<a class="code" href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html">DataObject</a>();</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; std::stack&lt;Destructor *&gt; data_objects_; </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; Destructor *get_heap_ptr(<span class="keywordtype">size_t</span> bytes_size);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">void</span> free_heap_ptr(Destructor *);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; };</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <a class="code" href="classGpgFrontend_1_1Thread_1_1Task.html">Task</a>();</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keyword">explicit</span> <a class="code" href="classGpgFrontend_1_1Thread_1_1Task.html">Task</a>(TaskCallback callback, DataObjectPtr data_object = <span class="keyword">nullptr</span>);</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keyword">explicit</span> <a class="code" href="classGpgFrontend_1_1Thread_1_1Task.html">Task</a>(</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; TaskRunnable runnable,</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; TaskCallback callback = [](<span class="keywordtype">int</span>, <span class="keyword">const</span> std::shared_ptr&lt;DataObject&gt; &amp;) {},</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; DataObjectPtr data = <span class="keyword">nullptr</span>);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keyword">virtual</span> ~Task() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> Run();</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; std::string GetUUID() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; signals:</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="keywordtype">void</span> SignalTaskFinished();</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; </div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordtype">void</span> SignalTaskPostFinishedDone();</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordtype">void</span> SetFinishAfterRun(<span class="keywordtype">bool</span> finish_after_run);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="keywordtype">void</span> SetRTN(<span class="keywordtype">int</span> rtn);</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keyword">const</span> std::string uuid_;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; TaskCallback callback_; </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; TaskRunnable runnable_; </div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="keywordtype">bool</span> finish_after_run_ = <span class="keyword">true</span>; </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordtype">int</span> rtn_ = 0; </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; QThread *callback_thread_ = <span class="keyword">nullptr</span>; </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; DataObjectPtr data_object_ = <span class="keyword">nullptr</span>; </div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; </div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordtype">void</span> before_finish_task();</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keywordtype">void</span> init();</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> run() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; <span class="keyword">static</span> std::string generate_uuid();</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160;};</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160;} <span class="comment">// namespace GpgFrontend::Thread</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// GPGFRONTEND_TASK_H</span></div>
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<div class="ttc" id="aclassGpgFrontend_1_1Thread_1_1Task_1_1DataObject_html"><div class="ttname"><a href="classGpgFrontend_1_1Thread_1_1Task_1_1DataObject.html">GpgFrontend::Thread::Task::DataObject</a></div><div class="ttdoc">DataObject to be passed to the callback function.</div><div class="ttdef"><b>Definition:</b> Task.h:59</div></div>
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<div class="ttc" id="astructGpgFrontend_1_1Thread_1_1Task_1_1DataObject_1_1Destructor_html"><div class="ttname"><a href="structGpgFrontend_1_1Thread_1_1Task_1_1DataObject_1_1Destructor.html">GpgFrontend::Thread::Task::DataObject::Destructor</a></div><div class="ttdef"><b>Definition:</b> Task.h:61</div></div>
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