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DISTRHO Plugin Framework
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  63.   <ul>

  64. <li class="navelem"><a class="el" href="dir_37257469cca17bab24b582e18a78eb75.html">distrho</a></li><li class="navelem"><a class="el" href="dir_b1be46be7d80596b116b2b4ac973f2f0.html">extra</a></li>  </ul>

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  67. <div class="header">

  68.   <div class="headertitle">

  69. <div class="title">Thread.hpp</div>  </div>

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

  71. <div class="contents">

  72. <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>

  73. <div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * DISTRHO Plugin Framework (DPF)</span></div>

  74. <div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 2012-2021 Filipe Coelho &lt;falktx@falktx.com&gt;</span></div>

  75. <div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>

  76. <div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Permission to use, copy, modify, and/or distribute this software for any purpose with</span></div>

  77. <div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * or without fee is hereby granted, provided that the above copyright notice and this</span></div>

  78. <div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * permission notice appear in all copies.</span></div>

  79. <div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *</span></div>

  80. <div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD</span></div>

  81. <div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN</span></div>

  82. <div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL</span></div>

  83. <div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER</span></div>

  84. <div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN</span></div>

  85. <div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>

  86. <div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> */</span></div>

  87. <div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>

  88. <div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#ifndef DISTRHO_THREAD_HPP_INCLUDED</span></div>

  89. <div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#define DISTRHO_THREAD_HPP_INCLUDED</span></div>

  90. <div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160; </div>

  91. <div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &quot;Mutex.hpp&quot;</span></div>

  92. <div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &quot;Sleep.hpp&quot;</span></div>

  93. <div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &quot;String.hpp&quot;</span></div>

  94. <div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160; </div>

  95. <div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#ifdef DISTRHO_OS_LINUX</span></div>

  96. <div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor"># include &lt;sys/prctl.h&gt;</span></div>

  97. <div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#endif</span></div>

  98. <div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160; </div>

  99. <div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;START_NAMESPACE_DISTRHO</div>

  100. <div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160; </div>

  101. <div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">// -----------------------------------------------------------------------</span></div>

  102. <div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">// Thread class</span></div>

  103. <div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160; </div>

  104. <div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="classThread.html">   33</a></span>&#160;<span class="keyword">class </span><a class="code" href="classThread.html">Thread</a></div>

  105. <div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;{</div>

  106. <div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">protected</span>:</div>

  107. <div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="comment">/*</span></div>

  108. <div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">     * Constructor.</span></div>

  109. <div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">     */</span></div>

  110. <div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <a class="code" href="classThread.html">Thread</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> threadName = <span class="keyword">nullptr</span>) noexcept</div>

  111. <div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        : fLock(),</div>

  112. <div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;          fSignal(),</div>

  113. <div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;          fName(threadName),</div>

  114. <div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#ifdef PTW32_DLLPORT</span></div>

  115. <div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;          fHandle({<span class="keyword">nullptr</span>, 0}),</div>

  116. <div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;#<span class="keywordflow">else</span></div>

  117. <div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;          fHandle(0),</div>

  118. <div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="preprocessor">#endif</span></div>

  119. <div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;          fShouldExit(<span class="keyword">false</span>) {}</div>

  120. <div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160; </div>

  121. <div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="comment">/*</span></div>

  122. <div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment">     * Destructor.</span></div>

  123. <div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">     */</span></div>

  124. <div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    <span class="keyword">virtual</span> ~<a class="code" href="classThread.html">Thread</a>() <span class="comment">/*noexcept*/</span></div>

  125. <div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    {</div>

  126. <div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        DISTRHO_SAFE_ASSERT(! isThreadRunning());</div>

  127. <div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160; </div>

  128. <div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        stopThread(-1);</div>

  129. <div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    }</div>

  130. <div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160; </div>

  131. <div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="comment">/*</span></div>

  132. <div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">     * Virtual function to be implemented by the subclass.</span></div>

  133. <div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">     */</span></div>

  134. <div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> run() = 0;</div>

  135. <div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160; </div>

  136. <div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="comment">// -------------------------------------------------------------------</span></div>

  137. <div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160; </div>

  138. <div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="keyword">public</span>:</div>

  139. <div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="comment">/*</span></div>

  140. <div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">     * Check if the thread is running.</span></div>

  141. <div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">     */</span></div>

  142. <div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordtype">bool</span> isThreadRunning() <span class="keyword">const</span> noexcept</div>

  143. <div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    {</div>

  144. <div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="preprocessor">#ifdef PTW32_DLLPORT</span></div>

  145. <div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        <span class="keywordflow">return</span> (fHandle.p != <span class="keyword">nullptr</span>);</div>

  146. <div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="preprocessor">#else</span></div>

  147. <div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        <span class="keywordflow">return</span> (fHandle != 0);</div>

  148. <div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="preprocessor">#endif</span></div>

  149. <div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    }</div>

  150. <div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160; </div>

  151. <div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <span class="comment">/*</span></div>

  152. <div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment">     * Check if the thread should exit.</span></div>

  153. <div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">     */</span></div>

  154. <div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keywordtype">bool</span> shouldThreadExit() <span class="keyword">const</span> noexcept</div>

  155. <div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    {</div>

  156. <div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="keywordflow">return</span> fShouldExit;</div>

  157. <div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    }</div>

  158. <div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160; </div>

  159. <div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="comment">/*</span></div>

  160. <div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="comment">     * Start the thread.</span></div>

  161. <div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="comment">     */</span></div>

  162. <div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="keywordtype">bool</span> startThread(<span class="keyword">const</span> <span class="keywordtype">bool</span> withRealtimePriority = <span class="keyword">false</span>) noexcept</div>

  163. <div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    {</div>

  164. <div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        <span class="comment">// check if already running</span></div>

  165. <div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;        DISTRHO_SAFE_ASSERT_RETURN(! isThreadRunning(), <span class="keyword">true</span>);</div>

  166. <div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160; </div>

  167. <div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        pthread_t handle;</div>

  168. <div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160; </div>

  169. <div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        pthread_attr_t attr;</div>

  170. <div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        pthread_attr_init(&amp;attr);</div>

  171. <div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160; </div>

  172. <div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        <span class="keyword">struct </span>sched_param sched_param;</div>

  173. <div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        std::memset(&amp;sched_param, 0, <span class="keyword">sizeof</span>(sched_param));</div>

  174. <div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160; </div>

  175. <div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        <span class="keywordflow">if</span> (withRealtimePriority)</div>

  176. <div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        {</div>

  177. <div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;            sched_param.sched_priority = 80;</div>

  178. <div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160; </div>

  179. <div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="preprocessor">#ifndef DISTRHO_OS_HAIKU</span></div>

  180. <div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;            <span class="keywordflow">if</span> (pthread_attr_setscope(&amp;attr, PTHREAD_SCOPE_SYSTEM)          == 0  &amp;&amp;</div>

  181. <div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                pthread_attr_setinheritsched(&amp;attr, PTHREAD_EXPLICIT_SCHED) == 0  &amp;&amp;</div>

  182. <div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;# ifndef DISTRHO_OS_WINDOWS</div>

  183. <div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;               (pthread_attr_setschedpolicy(&amp;attr, SCHED_FIFO)              == 0  ||</div>

  184. <div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;                pthread_attr_setschedpolicy(&amp;attr, SCHED_RR)                == 0) &amp;&amp;</div>

  185. <div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;# endif</div>

  186. <div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                pthread_attr_setschedparam(&amp;attr, &amp;sched_param)             == 0)</div>

  187. <div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;            {</div>

  188. <div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                d_stdout(<span class="stringliteral">&quot;Thread setup with realtime priority successful&quot;</span>);</div>

  189. <div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;            }</div>

  190. <div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;            <span class="keywordflow">else</span></div>

  191. <div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;<span class="preprocessor">#endif</span></div>

  192. <div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;            {</div>

  193. <div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;                d_stdout(<span class="stringliteral">&quot;Thread setup with realtime priority failed, going with normal priority instead&quot;</span>);</div>

  194. <div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                pthread_attr_destroy(&amp;attr);</div>

  195. <div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                pthread_attr_init(&amp;attr);</div>

  196. <div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            }</div>

  197. <div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        }</div>

  198. <div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160; </div>

  199. <div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        <span class="keyword">const</span> <a class="code" href="classScopeLocker.html">MutexLocker</a> ml(fLock);</div>

  200. <div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160; </div>

  201. <div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        fShouldExit = <span class="keyword">false</span>;</div>

  202. <div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160; </div>

  203. <div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        <span class="keywordtype">bool</span> ok = pthread_create(&amp;handle, &amp;attr, _entryPoint, <span class="keyword">this</span>) == 0;</div>

  204. <div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        pthread_attr_destroy(&amp;attr);</div>

  205. <div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160; </div>

  206. <div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;        <span class="keywordflow">if</span> (withRealtimePriority &amp;&amp; !ok)</div>

  207. <div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;       {</div>

  208. <div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;            d_stdout(<span class="stringliteral">&quot;Thread with realtime priority failed on creation, going with normal priority instead&quot;</span>);</div>

  209. <div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;            pthread_attr_init(&amp;attr);</div>

  210. <div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            ok = pthread_create(&amp;handle, &amp;attr, _entryPoint, <span class="keyword">this</span>) == 0;</div>

  211. <div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            pthread_attr_destroy(&amp;attr);</div>

  212. <div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;       }</div>

  213. <div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160; </div>

  214. <div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        DISTRHO_SAFE_ASSERT_RETURN(ok, <span class="keyword">false</span>);</div>

  215. <div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="preprocessor">#ifdef PTW32_DLLPORT</span></div>

  216. <div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        DISTRHO_SAFE_ASSERT_RETURN(handle.p != <span class="keyword">nullptr</span>, <span class="keyword">false</span>);</div>

  217. <div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="preprocessor">#else</span></div>

  218. <div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        DISTRHO_SAFE_ASSERT_RETURN(handle != 0, <span class="keyword">false</span>);</div>

  219. <div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="preprocessor">#endif</span></div>

  220. <div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;        pthread_detach(handle);</div>

  221. <div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        _copyFrom(handle);</div>

  222. <div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160; </div>

  223. <div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        <span class="comment">// wait for thread to start</span></div>

  224. <div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        fSignal.wait();</div>

  225. <div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>

  226. <div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    }</div>

  227. <div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160; </div>

  228. <div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="comment">/*</span></div>

  229. <div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="comment">     * Stop the thread.</span></div>

  230. <div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="comment">     * In the &#39;timeOutMilliseconds&#39;:</span></div>

  231. <div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="comment">     * = 0 -&gt; no wait</span></div>

  232. <div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="comment">     * &gt; 0 -&gt; wait timeout value</span></div>

  233. <div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="comment">     * &lt; 0 -&gt; wait forever</span></div>

  234. <div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="comment">     */</span></div>

  235. <div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="keywordtype">bool</span> stopThread(<span class="keyword">const</span> <span class="keywordtype">int</span> timeOutMilliseconds) noexcept</div>

  236. <div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    {</div>

  237. <div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;        <span class="keyword">const</span> <a class="code" href="classScopeLocker.html">MutexLocker</a> ml(fLock);</div>

  238. <div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160; </div>

  239. <div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;        <span class="keywordflow">if</span> (isThreadRunning())</div>

  240. <div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;        {</div>

  241. <div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;            signalThreadShouldExit();</div>

  242. <div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160; </div>

  243. <div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;            <span class="keywordflow">if</span> (timeOutMilliseconds != 0)</div>

  244. <div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;            {</div>

  245. <div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                <span class="comment">// Wait for the thread to stop</span></div>

  246. <div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;                <span class="keywordtype">int</span> timeOutCheck = (timeOutMilliseconds == 1 || timeOutMilliseconds == -1) ? timeOutMilliseconds : timeOutMilliseconds/2;</div>

  247. <div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160; </div>

  248. <div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                <span class="keywordflow">for</span> (; isThreadRunning();)</div>

  249. <div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;                {</div>

  250. <div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;                    d_msleep(2);</div>

  251. <div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160; </div>

  252. <div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;                    <span class="keywordflow">if</span> (timeOutCheck &lt; 0)</div>

  253. <div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;                        <span class="keywordflow">continue</span>;</div>

  254. <div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160; </div>

  255. <div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;                    <span class="keywordflow">if</span> (timeOutCheck &gt; 0)</div>

  256. <div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;                        timeOutCheck -= 1;</div>

  257. <div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;                    <span class="keywordflow">else</span></div>

  258. <div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;                        <span class="keywordflow">break</span>;</div>

  259. <div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;                }</div>

  260. <div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            }</div>

  261. <div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160; </div>

  262. <div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;            <span class="keywordflow">if</span> (isThreadRunning())</div>

  263. <div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;            {</div>

  264. <div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;                <span class="comment">// should never happen!</span></div>

  265. <div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;                d_stderr2(<span class="stringliteral">&quot;assertion failure: \&quot;! isThreadRunning()\&quot; in file %s, line %i&quot;</span>, __FILE__, __LINE__);</div>

  266. <div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160; </div>

  267. <div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;                <span class="comment">// copy thread id so we can clear our one</span></div>

  268. <div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;                pthread_t threadId;</div>

  269. <div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;                _copyTo(threadId);</div>

  270. <div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;                _init();</div>

  271. <div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160; </div>

  272. <div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;                pthread_detach(threadId);</div>

  273. <div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>

  274. <div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;            }</div>

  275. <div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;        }</div>

  276. <div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160; </div>

  277. <div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>

  278. <div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    }</div>

  279. <div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160; </div>

  280. <div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    <span class="comment">/*</span></div>

  281. <div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;<span class="comment">     * Tell the thread to stop as soon as possible.</span></div>

  282. <div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<span class="comment">     */</span></div>

  283. <div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <span class="keywordtype">void</span> signalThreadShouldExit() noexcept</div>

  284. <div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    {</div>

  285. <div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;        fShouldExit = <span class="keyword">true</span>;</div>

  286. <div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    }</div>

  287. <div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160; </div>

  288. <div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    <span class="comment">// -------------------------------------------------------------------</span></div>

  289. <div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160; </div>

  290. <div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    <span class="comment">/*</span></div>

  291. <div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;<span class="comment">     * Returns the name of the thread.</span></div>

  292. <div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;<span class="comment">     * This is the name that gets set in the constructor.</span></div>

  293. <div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;<span class="comment">     */</span></div>

  294. <div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    <span class="keyword">const</span> <a class="code" href="classString.html">String</a>&amp; getThreadName() <span class="keyword">const</span> noexcept</div>

  295. <div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    {</div>

  296. <div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;        <span class="keywordflow">return</span> fName;</div>

  297. <div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;    }</div>

  298. <div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160; </div>

  299. <div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;    <span class="comment">/*</span></div>

  300. <div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;<span class="comment">     * Returns the Id/handle of the thread.</span></div>

  301. <div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;<span class="comment">     */</span></div>

  302. <div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    pthread_t getThreadId() <span class="keyword">const</span> noexcept</div>

  303. <div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;    {</div>

  304. <div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;        <span class="keywordflow">return</span> fHandle;</div>

  305. <div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;    }</div>

  306. <div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160; </div>

  307. <div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    <span class="comment">/*</span></div>

  308. <div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="comment">     * Changes the name of the caller thread.</span></div>

  309. <div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;<span class="comment">     */</span></div>

  310. <div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    <span class="keyword">static</span> <span class="keywordtype">void</span> setCurrentThreadName(<span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> name) noexcept</div>

  311. <div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    {</div>

  312. <div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;        DISTRHO_SAFE_ASSERT_RETURN(name != <span class="keyword">nullptr</span> &amp;&amp; name[0] != <span class="charliteral">&#39;\0&#39;</span>,);</div>

  313. <div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160; </div>

  314. <div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;<span class="preprocessor">#ifdef DISTRHO_OS_LINUX</span></div>

  315. <div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;        prctl(PR_SET_NAME, name, 0, 0, 0);</div>

  316. <div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;<span class="preprocessor">#endif</span></div>

  317. <div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;<span class="preprocessor">#if defined(__GLIBC__) &amp;&amp; (__GLIBC__ * 1000 + __GLIBC_MINOR__) &gt;= 2012 &amp;&amp; !defined(DISTRHO_OS_GNU_HURD)</span></div>

  318. <div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        pthread_setname_np(pthread_self(), name);</div>

  319. <div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;<span class="preprocessor">#endif</span></div>

  320. <div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    }</div>

  321. <div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160; </div>

  322. <div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;    <span class="comment">// -------------------------------------------------------------------</span></div>

  323. <div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160; </div>

  324. <div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;<span class="keyword">private</span>:</div>

  325. <div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;    <a class="code" href="classMutex.html">Mutex</a>              fLock;       <span class="comment">// Thread lock</span></div>

  326. <div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;    <a class="code" href="classSignal.html">Signal</a>             fSignal;     <span class="comment">// Thread start wait signal</span></div>

  327. <div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;    <span class="keyword">const</span> <a class="code" href="classString.html">String</a>       fName;       <span class="comment">// Thread name</span></div>

  328. <div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;    <span class="keyword">volatile</span> pthread_t fHandle;     <span class="comment">// Handle for this thread</span></div>

  329. <div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;    <span class="keyword">volatile</span> <span class="keywordtype">bool</span>      fShouldExit; <span class="comment">// true if thread should exit</span></div>

  330. <div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160; </div>

  331. <div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    <span class="comment">/*</span></div>

  332. <div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;<span class="comment">     * Init pthread type.</span></div>

  333. <div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;<span class="comment">     */</span></div>

  334. <div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;    <span class="keywordtype">void</span> _init() noexcept</div>

  335. <div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;    {</div>

  336. <div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;<span class="preprocessor">#ifdef PTW32_DLLPORT</span></div>

  337. <div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;        fHandle.p = <span class="keyword">nullptr</span>;</div>

  338. <div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;        fHandle.x = 0;</div>

  339. <div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="preprocessor">#else</span></div>

  340. <div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;        fHandle = 0;</div>

  341. <div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="preprocessor">#endif</span></div>

  342. <div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    }</div>

  343. <div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160; </div>

  344. <div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;    <span class="comment">/*</span></div>

  345. <div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="comment">     * Copy our pthread type from another var.</span></div>

  346. <div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;<span class="comment">     */</span></div>

  347. <div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    <span class="keywordtype">void</span> _copyFrom(<span class="keyword">const</span> pthread_t&amp; handle) noexcept</div>

  348. <div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;    {</div>

  349. <div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;<span class="preprocessor">#ifdef PTW32_DLLPORT</span></div>

  350. <div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        fHandle.p = handle.p;</div>

  351. <div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;        fHandle.x = handle.x;</div>

  352. <div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="preprocessor">#else</span></div>

  353. <div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;        fHandle = handle;</div>

  354. <div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="preprocessor">#endif</span></div>

  355. <div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;    }</div>

  356. <div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160; </div>

  357. <div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="comment">/*</span></div>

  358. <div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;<span class="comment">     * Copy our pthread type to another var.</span></div>

  359. <div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;<span class="comment">     */</span></div>

  360. <div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;    <span class="keywordtype">void</span> _copyTo(<span class="keyword">volatile</span> pthread_t&amp; handle) <span class="keyword">const</span> noexcept</div>

  361. <div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    {</div>

  362. <div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;<span class="preprocessor">#ifdef PTW32_DLLPORT</span></div>

  363. <div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;        handle.p = fHandle.p;</div>

  364. <div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;        handle.x = fHandle.x;</div>

  365. <div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;<span class="preprocessor">#else</span></div>

  366. <div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;        handle = fHandle;</div>

  367. <div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;<span class="preprocessor">#endif</span></div>

  368. <div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    }</div>

  369. <div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160; </div>

  370. <div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    <span class="comment">/*</span></div>

  371. <div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;<span class="comment">     * Thread entry point.</span></div>

  372. <div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;<span class="comment">     */</span></div>

  373. <div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;    <span class="keywordtype">void</span> _runEntryPoint() noexcept</div>

  374. <div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    {</div>

  375. <div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;        <span class="keywordflow">if</span> (fName.isNotEmpty())</div>

  376. <div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;            setCurrentThreadName(fName);</div>

  377. <div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160; </div>

  378. <div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;        <span class="comment">// report ready</span></div>

  379. <div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;        fSignal.signal();</div>

  380. <div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160; </div>

  381. <div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;        <span class="keywordflow">try</span> {</div>

  382. <div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;            run();</div>

  383. <div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;        } <span class="keywordflow">catch</span>(...) {}</div>

  384. <div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160; </div>

  385. <div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;        <span class="comment">// done</span></div>

  386. <div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;        _init();</div>

  387. <div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;    }</div>

  388. <div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160; </div>

  389. <div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;    <span class="comment">/*</span></div>

  390. <div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;<span class="comment">     * Thread entry point.</span></div>

  391. <div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;<span class="comment">     */</span></div>

  392. <div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;    <span class="keyword">static</span> <span class="keywordtype">void</span>* _entryPoint(<span class="keywordtype">void</span>* userData) noexcept</div>

  393. <div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    {</div>

  394. <div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;        <span class="keyword">static_cast&lt;</span><a class="code" href="classThread.html">Thread</a>*<span class="keyword">&gt;</span>(userData)-&gt;_runEntryPoint();</div>

  395. <div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>

  396. <div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;    }</div>

  397. <div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160; </div>

  398. <div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;    DISTRHO_DECLARE_NON_COPYABLE(<a class="code" href="classThread.html">Thread</a>)</div>

  399. <div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;};</div>

  400. <div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160; </div>

  401. <div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;<span class="comment">// -----------------------------------------------------------------------</span></div>

  402. <div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160; </div>

  403. <div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;END_NAMESPACE_DISTRHO</div>

  404. <div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160; </div>

  405. <div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;<span class="preprocessor">#endif // DISTRHO_THREAD_HPP_INCLUDED</span></div>

  406. </div><!-- fragment --></div><!-- contents -->

  407. <div class="ttc" id="aclassString_html"><div class="ttname"><a href="classString.html">String</a></div><div class="ttdef"><b>Definition:</b> String.hpp:30</div></div>

  408. <div class="ttc" id="aclassSignal_html"><div class="ttname"><a href="classSignal.html">Signal</a></div><div class="ttdef"><b>Definition:</b> Mutex.hpp:183</div></div>

  409. <div class="ttc" id="aclassScopeLocker_html"><div class="ttname"><a href="classScopeLocker.html">ScopeLocker</a></div><div class="ttdef"><b>Definition:</b> Mutex.hpp:265</div></div>

  410. <div class="ttc" id="aclassMutex_html"><div class="ttname"><a href="classMutex.html">Mutex</a></div><div class="ttdef"><b>Definition:</b> Mutex.hpp:36</div></div>

  411. <div class="ttc" id="aclassThread_html"><div class="ttname"><a href="classThread.html">Thread</a></div><div class="ttdef"><b>Definition:</b> Thread.hpp:33</div></div>

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  414. Generated on Sat Jul 3 2021 23:07:05 for DISTRHO Plugin Framework by &#160;<a href="http://www.doxygen.org/index.html">

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

  416. </a> 1.8.17

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