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<li class="navelem"><a class="el" href="dir_120ed4da3e3217b1e7fc0b4f48568e79.html">test</a></li><li class="navelem"><a class="el" href="dir_354330c8aa73f5a2ebe2c490e5cf38ef.html">basics</a></li> </ul>
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<div class="headertitle"><div class="title">IntrusiveShared_test.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &lt;test/unit_test/SuiteJournal.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include &lt;xrpl/basics/IntrusivePointer.ipp&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;xrpl/basics/IntrusiveRefCounts.h&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;xrpl/beast/unit_test.h&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;xrpl/beast/utility/Journal.h&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> </div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/array.html">array</a>&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a>&gt;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;barrier&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/chrono.html">chrono</a>&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/condition_variable.html">condition_variable</a>&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &lt;latch&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/optional.html">optional</a>&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/random.html">random</a>&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/string.html">string</a>&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/thread.html">thread</a>&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/variant.html">variant</a>&gt;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="foldopen" id="foldopen00021" data-start="{" data-end="}">
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"><a class="line" href="namespaceripple_1_1tests.html"> 21</a></span><span class="keyword">namespace </span>tests {</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="foldopen" id="foldopen00045" data-start="{" data-end="};">
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html"> 45</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>{</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html#a023130d72e3cc9fbc1d6640447f3c5a2"> 47</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/mutex.html">std::mutex</a> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a023130d72e3cc9fbc1d6640447f3c5a2">mtx</a>;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html#abbafe75d92ca1705f9e48d32a34fb825"> 48</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/condition_variable.html">std::condition_variable</a> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#abbafe75d92ca1705f9e48d32a34fb825">cv</a>;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7"> 49</a></span> <span class="keywordtype">int</span> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7">count</a>;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html#aab2456bc9b654d4387f4d3ca6abee348"> 50</a></span> <span class="keywordtype">int</span> <span class="keyword">const</span> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#aab2456bc9b654d4387f4d3ca6abee348">initial</a>;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="foldopen" id="foldopen00052" data-start="{" data-end="}">
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html#a9db675aa86b2b103110ae21b991ae6af"> 52</a></span> <a class="code hl_function" href="structripple_1_1tests_1_1Barrier.html#a9db675aa86b2b103110ae21b991ae6af">Barrier</a>(<span class="keywordtype">int</span> n) : <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7">count</a>(n), <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#aab2456bc9b654d4387f4d3ca6abee348">initial</a>(n)</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> {</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> }</div>
</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00057" data-start="{" data-end="}">
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="structripple_1_1tests_1_1Barrier.html#a3024a052f980b05e9585a5f892a4c15a"> 57</a></span> <a class="code hl_function" href="structripple_1_1tests_1_1Barrier.html#a3024a052f980b05e9585a5f892a4c15a">arrive_and_wait</a>()</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> {</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/unique_lock.html">std::unique_lock</a> lock(<a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a023130d72e3cc9fbc1d6640447f3c5a2">mtx</a>);</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">if</span> (--<a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7">count</a> == 0)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7">count</a> = <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#aab2456bc9b654d4387f4d3ca6abee348">initial</a>;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#abbafe75d92ca1705f9e48d32a34fb825">cv</a>.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/thread/condition_variable/notify_all.html">notify_all</a>();</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> {</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#abbafe75d92ca1705f9e48d32a34fb825">cv</a>.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/thread/condition_variable/wait.html">wait</a>(lock, [&amp;] { <span class="keywordflow">return</span> <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7">count</a> == <a class="code hl_variable" href="structripple_1_1tests_1_1Barrier.html#aab2456bc9b654d4387f4d3ca6abee348">initial</a>; });</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span>};</div>
</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="keyword">namespace </span>{</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="keyword">enum class</span> TrackedState : <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> {</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> uninitialized,</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> alive,</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> partiallyDeletedStarted,</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> partiallyDeleted,</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> deletedStarted,</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> deleted</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>};</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="keyword">class </span>TIBase : <span class="keyword">public</span> IntrusiveRefCounts</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span>{</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> maxStates = 128;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::atomic&lt;TrackedState&gt;</a>, maxStates&gt; state;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;int&gt;</a> nextId;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">static</span> TrackedState</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> getState(<span class="keywordtype">int</span> <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> {</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> assert(<span class="keywordtype">id</span> &lt; state.size());</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">return</span> state[id].load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acquire</a>);</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> resetStates(<span class="keywordtype">bool</span> resetCallback)</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> {</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; maxStates; ++i)</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> {</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> state[i].store(</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> TrackedState::uninitialized, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_release</a>);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> }</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> nextId.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/atomic/atomic/store.html">store</a>(0, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_release</a>);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">if</span> (resetCallback)</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> TIBase::tracingCallback_ = [](TrackedState,</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a>) {};</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> }</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">struct </span>ResetStatesGuard</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> {</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">bool</span> resetCallback_{<span class="keyword">false</span>};</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> ResetStatesGuard(<span class="keywordtype">bool</span> resetCallback) : resetCallback_{resetCallback}</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> {</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> TIBase::resetStates(resetCallback_);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> ~ResetStatesGuard()</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> {</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> TIBase::resetStates(resetCallback_);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> }</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> };</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> TIBase() : id_{checkoutID()}</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> state[id_].store(TrackedState::alive, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> }</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> ~TIBase()</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> {</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> tracingCallback_(</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> state[id_].load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>), deletedStarted);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// Use relaxed memory order to try to avoid atomic operations from</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// adding additional memory synchronizations that may hide threading</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="comment">// errors in the underlying shared pointer class.</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> state[id_].store(deletedStarted, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> tracingCallback_(deletedStarted, deleted);</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> state[id_].store(TrackedState::deleted, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> tracingCallback_(TrackedState::deleted, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::nullopt</a>);</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">void</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> partialDestructor()</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> {</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> tracingCallback_(</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> state[id_].load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>),</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> partiallyDeletedStarted);</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> state[id_].store(partiallyDeletedStarted, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> tracingCallback_(partiallyDeletedStarted, partiallyDeleted);</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> assert(state.size() &gt; id_);</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> state[id_].store(partiallyDeleted, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> tracingCallback_(partiallyDeleted, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::nullopt</a>);</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> }</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a>&lt;void(TrackedState, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a>)&gt;</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> tracingCallback_;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordtype">int</span> id_;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> checkoutID()</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> {</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keywordflow">return</span> nextId.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/atomic/atomic/fetch_add.html">fetch_add</a>(1, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> }</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>};</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::atomic&lt;TrackedState&gt;</a>, TIBase::maxStates&gt; TIBase::state;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;int&gt;</a> TIBase::nextId{0};</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> </div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a>&lt;void(TrackedState, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a>)&gt;</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> TIBase::tracingCallback_ = [](TrackedState, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a>) {};</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span>} <span class="comment">// namespace</span></div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="foldopen" id="foldopen00191" data-start="{" data-end="};">
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html"> 191</a></span><span class="keyword">class </span><a class="code hl_class" href="classripple_1_1tests_1_1IntrusiveShared__test.html">IntrusiveShared_test</a> : <span class="keyword">public</span> <a class="code hl_class" href="classbeast_1_1unit__test_1_1suite.html">beast::unit_test::suite</a></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span>{</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00195" data-start="{" data-end="}">
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#afd702bb5084b97f82f9dc53124e8316d"> 195</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#afd702bb5084b97f82f9dc53124e8316d">testBasics</a>()</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> {</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">testcase</a>(<span class="stringliteral">&quot;Basics&quot;</span>);</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> {</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> </div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> TIBase b;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> BEAST_EXPECT(b.use_count() == 1);</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> b.addWeakRef();</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> BEAST_EXPECT(b.use_count() == 1);</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keyword">auto</span> s = b.releaseStrongRef();</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> BEAST_EXPECT(s == <a class="code hl_enumvalue" href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894">ReleaseStrongRefAction::partialDestroy</a>);</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> BEAST_EXPECT(b.use_count() == 0);</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> TIBase* pb = &amp;b;</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <a class="code hl_function" href="namespaceripple.html#a4aaf0c41d96f26147ee484a7b8dee51b">partialDestructorFinished</a>(&amp;pb);</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> BEAST_EXPECT(!pb);</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">auto</span> w = b.releaseWeakRef();</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> BEAST_EXPECT(w == <a class="code hl_enumvalue" href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71afb14982288108e1fbd6207ef55f05027">ReleaseWeakRefAction::destroy</a>);</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> }</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;SharedIntrusive&lt;TIBase&gt;</a>&gt; strong;</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;WeakIntrusive&lt;TIBase&gt;</a>&gt; weak;</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> {</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> </div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">auto</span> b = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">auto</span> <span class="keywordtype">id</span> = b-&gt;id_;</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> BEAST_EXPECT(b-&gt;use_count() == 1);</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 10; ++i)</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> {</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> strong.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(b);</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> }</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> b.reset();</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> strong.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/resize.html">resize</a>(strong.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() - 1);</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> strong.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/clear.html">clear</a>();</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == deleted);</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> </div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> b = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordtype">id</span> = b-&gt;id_;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> BEAST_EXPECT(b-&gt;use_count() == 1);</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 10; ++i)</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> {</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(b);</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> BEAST_EXPECT(b-&gt;use_count() == 1);</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> }</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/resize.html">resize</a>(weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() - 1);</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> b.reset();</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == partiallyDeleted);</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keywordflow">while</span> (!weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/empty.html">empty</a>())</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> {</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/resize.html">resize</a>(weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() - 1);</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keywordflow">if</span> (weak.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>())</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == partiallyDeleted);</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> }</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == deleted);</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> }</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> {</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> </div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">auto</span> b = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keyword">auto</span> <span class="keywordtype">id</span> = b-&gt;id_;</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive&lt;TIBase&gt;</a> w{b};</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keyword">auto</span> s = w.lock();</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> BEAST_EXPECT(s &amp;&amp; s-&gt;use_count() == 2);</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> b.reset();</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> BEAST_EXPECT(s &amp;&amp; s-&gt;use_count() == 1);</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> s.reset();</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == partiallyDeleted);</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> BEAST_EXPECT(w.expired());</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> s = w.lock();</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// Cannot convert a weak pointer to a strong pointer if object is</span></div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="comment">// already partially deleted</span></div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> BEAST_EXPECT(!s);</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> w.reset();</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == deleted);</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> }</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> {</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> </div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="keyword">using </span>swu = <a class="code hl_class" href="classripple_1_1SharedWeakUnion.html">SharedWeakUnion&lt;TIBase&gt;</a>;</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> swu b = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> BEAST_EXPECT(b.isStrong() &amp;&amp; b.use_count() == 1);</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> <span class="keyword">auto</span> <span class="keywordtype">id</span> = b.get()-&gt;id_;</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> swu w = b;</div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> BEAST_EXPECT(w.isStrong() &amp;&amp; b.use_count() == 2);</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> w.convertToWeak();</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> BEAST_EXPECT(w.isWeak() &amp;&amp; b.use_count() == 1);</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> swu s = w;</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> BEAST_EXPECT(s.isWeak() &amp;&amp; b.use_count() == 1);</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> s.convertToStrong();</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> BEAST_EXPECT(s.isStrong() &amp;&amp; b.use_count() == 2);</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> b.reset();</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == alive);</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> BEAST_EXPECT(s.use_count() == 1);</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> BEAST_EXPECT(!w.expired());</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> s.reset();</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == partiallyDeleted);</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> BEAST_EXPECT(w.expired());</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> w.convertToStrong();</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="comment">// Cannot convert a weak pointer to a strong pointer if object is</span></div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="comment">// already partially deleted</span></div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> BEAST_EXPECT(w.isWeak());</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> w.reset();</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> BEAST_EXPECT(TIBase::getState(<span class="keywordtype">id</span>) == deleted);</div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> }</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> {</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <span class="comment">// Testing SharedWeakUnion assignment operator</span></div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> </div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keyword">auto</span> strong1 = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="keyword">auto</span> strong2 = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">auto</span> id1 = strong1-&gt;id_;</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <span class="keyword">auto</span> id2 = strong2-&gt;id_;</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> </div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> BEAST_EXPECT(id1 != id2);</div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> </div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> <a class="code hl_class" href="classripple_1_1SharedWeakUnion.html">SharedWeakUnion&lt;TIBase&gt;</a> union1 = strong1;</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <a class="code hl_class" href="classripple_1_1SharedWeakUnion.html">SharedWeakUnion&lt;TIBase&gt;</a> union2 = strong2;</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> </div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">isStrong</a>());</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> BEAST_EXPECT(union2.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">isStrong</a>());</div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">get</a>() == strong1.get());</div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> BEAST_EXPECT(union2.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">get</a>() == strong2.get());</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> </div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="comment">// 1) Normal assignment: explicitly calls SharedWeakUnion assignment</span></div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> union1 = union2;</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">isStrong</a>());</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> BEAST_EXPECT(union2.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">isStrong</a>());</div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">get</a>() == union2.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">get</a>());</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> BEAST_EXPECT(TIBase::getState(id1) == TrackedState::alive);</div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> BEAST_EXPECT(TIBase::getState(id2) == TrackedState::alive);</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> </div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="comment">// 2) Test self-assignment</span></div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">isStrong</a>());</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> BEAST_EXPECT(TIBase::getState(id1) == TrackedState::alive);</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> <span class="keywordtype">int</span> initialRefCount = strong1-&gt;use_count();</div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span><span class="preprocessor">#pragma clang diagnostic push</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span><span class="preprocessor">#pragma clang diagnostic ignored &quot;-Wself-assign-overloaded&quot;</span></div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> union1 = union1; <span class="comment">// Self-assignment</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span><span class="preprocessor">#pragma clang diagnostic pop</span></div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">isStrong</a>());</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> BEAST_EXPECT(TIBase::getState(id1) == TrackedState::alive);</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> BEAST_EXPECT(strong1-&gt;use_count() == initialRefCount);</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> </div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <span class="comment">// 3) Test assignment from null union pointer</span></div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> union1 = <a class="code hl_class" href="classripple_1_1SharedWeakUnion.html">SharedWeakUnion&lt;TIBase&gt;</a>();</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">get</a>() == <span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> </div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// 4) Test assignment to expired union pointer</span></div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> strong2.reset();</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> union2.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#ab5386228e1dc5f481ffe6412038bd6d8">reset</a>();</div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> union1 = union2;</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> BEAST_EXPECT(union1.<a class="code hl_function" href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">get</a>() == <span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> BEAST_EXPECT(TIBase::getState(id2) == TrackedState::deleted);</div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> }</div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> }</div>
</div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> </div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00370" data-start="{" data-end="}">
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#af2a1c944c4a7e84b0909f74dd7ffecf3"> 370</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#af2a1c944c4a7e84b0909f74dd7ffecf3">testPartialDelete</a>()</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> {</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">testcase</a>(<span class="stringliteral">&quot;Partial Delete&quot;</span>);</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> </div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> <span class="comment">// This test creates two threads. One with a strong pointer and one</span></div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <span class="comment">// with a weak pointer. The strong pointer is reset while the weak</span></div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <span class="comment">// pointer still holds a reference, triggering a partial delete.</span></div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="comment">// While the partial delete function runs (a sleep is inserted) the</span></div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <span class="comment">// weak pointer is reset. The destructor should wait to run until</span></div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="comment">// after the partial delete function has completed running.</span></div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> </div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> </div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> </div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <span class="keyword">auto</span> strong = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive&lt;TIBase&gt;</a> weak{strong};</div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="keywordtype">bool</span> destructorRan = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keywordtype">bool</span> partialDeleteRan = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/latch.html">std::latch</a> partialDeleteStartedSyncPoint{2};</div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> strong-&gt;tracingCallback_ = [&amp;](TrackedState cur,</div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a> next) {</div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> <span class="keywordflow">if</span> (next == deletedStarted)</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> {</div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> <span class="comment">// strong goes out of scope while weak is still in scope</span></div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <span class="comment">// This checks that partialDelete has run to completion</span></div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> <span class="comment">// before the desturctor is called. A sleep is inserted</span></div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> <span class="comment">// inside the partial delete to make sure the destructor is</span></div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="comment">// given an opportunity to run durring partial delete.</span></div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> BEAST_EXPECT(cur == partiallyDeleted);</div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> }</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="keywordflow">if</span> (next == partiallyDeletedStarted)</div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> {</div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> partialDeleteStartedSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> <span class="keyword">using namespace </span>std::chrono_literals;</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> <span class="comment">// Sleep and let the weak pointer go out of scope,</span></div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <span class="comment">// potentially triggering a destructor while partial delete</span></div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="comment">// is running. The test is to make sure that doesn&#39;t happen.</span></div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/thread/sleep_for.html">std::this_thread::sleep_for</a>(800ms);</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> }</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keywordflow">if</span> (next == partiallyDeleted)</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> {</div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> BEAST_EXPECT(!partialDeleteRan &amp;&amp; !destructorRan);</div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> partialDeleteRan = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> }</div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <span class="keywordflow">if</span> (next == deleted)</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> {</div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> BEAST_EXPECT(!destructorRan);</div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> destructorRan = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> }</div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> };</div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/thread.html">std::thread</a> t1{[&amp;] {</div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> partialDeleteStartedSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> weak.reset(); <span class="comment">// Trigger a full delete as soon as the partial</span></div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> <span class="comment">// delete starts</span></div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> }};</div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/thread.html">std::thread</a> t2{[&amp;] {</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> strong.reset(); <span class="comment">// Trigger a partial delete</span></div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> }};</div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> t1.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/thread/thread/join.html">join</a>();</div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> t2.join();</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> </div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> BEAST_EXPECT(destructorRan &amp;&amp; partialDeleteRan);</div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> }</div>
</div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> </div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00437" data-start="{" data-end="}">
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a8902dcc2f391c0181d18c8cd18cce534"> 437</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a8902dcc2f391c0181d18c8cd18cce534">testDestructor</a>()</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> {</div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">testcase</a>(<span class="stringliteral">&quot;Destructor&quot;</span>);</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> </div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <span class="comment">// This test creates two threads. One with a strong pointer and one</span></div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="comment">// with a weak pointer. The weak pointer is reset while the strong</span></div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> <span class="comment">// pointer still holds a reference. Then the strong pointer is</span></div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> <span class="comment">// reset. Only the destructor should run. The partial destructor</span></div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <span class="comment">// should not be called. Since the weak reset runs to completion</span></div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="comment">// before the strong pointer is reset, threading doesn&#39;t add much to</span></div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> <span class="comment">// this test, but there is no harm in keeping it.</span></div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> </div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> </div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> </div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> <span class="keyword">auto</span> strong = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> <a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive&lt;TIBase&gt;</a> weak{strong};</div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <span class="keywordtype">bool</span> destructorRan = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> <span class="keywordtype">bool</span> partialDeleteRan = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/latch.html">std::latch</a> weakResetSyncPoint{2};</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> strong-&gt;tracingCallback_ = [&amp;](TrackedState cur,</div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a> next) {</div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <span class="keywordflow">if</span> (next == partiallyDeleted)</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> {</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> BEAST_EXPECT(!partialDeleteRan &amp;&amp; !destructorRan);</div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> partialDeleteRan = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> }</div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <span class="keywordflow">if</span> (next == deleted)</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> {</div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> BEAST_EXPECT(!destructorRan);</div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> destructorRan = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> }</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> };</div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/thread.html">std::thread</a> t1{[&amp;] {</div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> weak.reset();</div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> weakResetSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> }};</div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/thread.html">std::thread</a> t2{[&amp;] {</div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> weakResetSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> strong.reset(); <span class="comment">// Trigger a partial delete</span></div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> }};</div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> t1.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/thread/thread/join.html">join</a>();</div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> t2.join();</div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> </div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> BEAST_EXPECT(destructorRan &amp;&amp; !partialDeleteRan);</div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> }</div>
</div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> </div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00487" data-start="{" data-end="}">
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a4c2e8bcf2505eb1e12af38011846d826"> 487</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a4c2e8bcf2505eb1e12af38011846d826">testMultithreadedClearMixedVariant</a>()</div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> {</div>
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">testcase</a>(<span class="stringliteral">&quot;Multithreaded Clear Mixed Variant&quot;</span>);</div>
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> </div>
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="comment">// This test creates and destroys many strong and weak pointers in a</span></div>
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="comment">// loop. There is a random mix of strong and weak pointers stored in</span></div>
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="comment">// a vector (held as a variant). Both threads clear all the pointers</span></div>
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> <span class="comment">// and check that the invariants hold.</span></div>
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> </div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> </div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;int&gt;</a> destructionState{0};</div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> <span class="comment">// returns destructorRan and partialDestructorRan (in that order)</span></div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> <span class="keyword">auto</span> getDestructorState = [&amp;]() -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair&lt;bool, bool&gt;</a> {</div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="keywordtype">int</span> s = destructionState.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> <span class="keywordflow">return</span> {(s &amp; 1) != 0, (s &amp; 2) != 0};</div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> };</div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> <span class="keyword">auto</span> setDestructorRan = [&amp;]() -&gt; <span class="keywordtype">void</span> {</div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> destructionState.fetch_or(1, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> };</div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> <span class="keyword">auto</span> setPartialDeleteRan = [&amp;]() -&gt; <span class="keywordtype">void</span> {</div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> destructionState.fetch_or(2, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> };</div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="keyword">auto</span> tracingCallback = [&amp;](TrackedState cur,</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a> next) {</div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> <span class="keyword">auto</span> [destructorRan, partialDeleteRan] = getDestructorState();</div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> <span class="keywordflow">if</span> (next == partiallyDeleted)</div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> {</div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> BEAST_EXPECT(!partialDeleteRan &amp;&amp; !destructorRan);</div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> setPartialDeleteRan();</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> }</div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> <span class="keywordflow">if</span> (next == deleted)</div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> {</div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> BEAST_EXPECT(!destructorRan);</div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> setDestructorRan();</div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> }</div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> };</div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <span class="keyword">auto</span> createVecOfPointers = [&amp;](<span class="keyword">auto</span> <span class="keyword">const</span>&amp; toClone,</div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random.html">std::default_random_engine</a>&amp; eng)</div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt;</div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant</a>&lt;<a class="code hl_class" href="classripple_1_1SharedIntrusive.html">SharedIntrusive&lt;TIBase&gt;</a>, <a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive&lt;TIBase&gt;</a>&gt;&gt; {</div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt;</div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant&lt;SharedIntrusive&lt;TIBase&gt;</a>, <a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive&lt;TIBase&gt;</a>&gt;&gt;</div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> result;</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random/uniform_int_distribution.html">std::uniform_int_distribution&lt;&gt;</a> toCreateDist(4, 64);</div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random/uniform_int_distribution.html">std::uniform_int_distribution&lt;&gt;</a> isStrongDist(0, 1);</div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="keyword">auto</span> numToCreate = toCreateDist(eng);</div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> result.reserve(numToCreate);</div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numToCreate; ++i)</div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> {</div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="keywordflow">if</span> (isStrongDist(eng))</div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> {</div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> result.push_back(<a class="code hl_class" href="classripple_1_1SharedIntrusive.html">SharedIntrusive&lt;TIBase&gt;</a>(toClone));</div>
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> }</div>
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> {</div>
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> result.push_back(<a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive&lt;TIBase&gt;</a>(toClone));</div>
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> }</div>
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> }</div>
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> };</div>
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> loopIters = 2 * 1024;</div>
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> numThreads = 16;</div>
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;SharedIntrusive&lt;TIBase&gt;</a>&gt; toClone;</div>
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> loopStartSyncPoint{numThreads};</div>
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postCreateToCloneSyncPoint{numThreads};</div>
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postCreateVecOfPointersSyncPoint{numThreads};</div>
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <span class="keyword">auto</span> engines = [&amp;]() -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::default_random_engine&gt;</a> {</div>
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random/random_device.html">std::random_device</a> rd;</div>
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::default_random_engine&gt;</a> result;</div>
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/reserve.html">reserve</a>(numThreads);</div>
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/emplace_back.html">emplace_back</a>(rd());</div>
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> }();</div>
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> </div>
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> <span class="comment">// cloneAndDestroy clones the strong pointer into a vector of mixed</span></div>
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> <span class="comment">// strong and weak pointers and destroys them all at once.</span></div>
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> <span class="comment">// threadId==0 is special.</span></div>
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> <span class="keyword">auto</span> cloneAndDestroy = [&amp;](<span class="keywordtype">int</span> threadId) {</div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; loopIters; ++i)</div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> {</div>
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> loopStartSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> </div>
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> <span class="comment">// only thread 0 should reset the state</span></div>
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TIBase::ResetStatesGuard&gt;</a> rsg;</div>
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> <span class="keywordflow">if</span> (threadId == 0)</div>
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> {</div>
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> <span class="comment">// Thread 0 is the genesis thread. It creates the strong</span></div>
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> <span class="comment">// pointers to be cloned by the other threads. This</span></div>
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> <span class="comment">// thread will also check that the destructor ran and</span></div>
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> <span class="comment">// clear the temporary variables.</span></div>
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> </div>
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> rsg.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/utility/optional/emplace.html">emplace</a>(<span class="keyword">false</span>);</div>
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> <span class="keyword">auto</span> [destructorRan, partialDeleteRan] =</div>
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> getDestructorState();</div>
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> BEAST_EXPECT(!i || destructorRan);</div>
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> destructionState.store(0, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_release</a>);</div>
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> </div>
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/clear.html">clear</a>();</div>
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/resize.html">resize</a>(numThreads);</div>
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> <span class="keyword">auto</span> strong = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> strong-&gt;tracingCallback_ = tracingCallback;</div>
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/fill.html">std::fill</a>(toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>(), strong);</div>
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> }</div>
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> </div>
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> postCreateToCloneSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> </div>
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> <span class="keyword">auto</span> v =</div>
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> createVecOfPointers(toClone[threadId], engines[threadId]);</div>
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> toClone[threadId].reset();</div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> </div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> postCreateVecOfPointersSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> </div>
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> v.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/clear.html">clear</a>();</div>
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> }</div>
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> };</div>
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::thread&gt;</a> threads;</div>
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> {</div>
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> threads.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/emplace_back.html">emplace_back</a>(cloneAndDestroy, i);</div>
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> }</div>
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> {</div>
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> threads[i].join();</div>
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> }</div>
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> }</div>
</div>
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> </div>
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00621" data-start="{" data-end="}">
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a620aec6a6233cb68d20b824029555485"> 621</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a620aec6a6233cb68d20b824029555485">testMultithreadedClearMixedUnion</a>()</div>
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> {</div>
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">testcase</a>(<span class="stringliteral">&quot;Multithreaded Clear Mixed Union&quot;</span>);</div>
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> </div>
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> <span class="comment">// This test creates and destroys many SharedWeak pointers in a</span></div>
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> <span class="comment">// loop. All the pointers start as strong and a loop randomly</span></div>
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> <span class="comment">// convert them between strong and weak pointers. Both threads clear</span></div>
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> <span class="comment">// all the pointers and check that the invariants hold.</span></div>
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> <span class="comment">//</span></div>
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> <span class="comment">// Note: This test also differs from the test above in that the pointers</span></div>
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> <span class="comment">// randomly change from strong to weak and from weak to strong in a</span></div>
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> <span class="comment">// loop. This can&#39;t be done in the variant test above because variant is</span></div>
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> <span class="comment">// not thread safe while the SharedWeakUnion is thread safe.</span></div>
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> </div>
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> </div>
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> </div>
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;int&gt;</a> destructionState{0};</div>
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> <span class="comment">// returns destructorRan and partialDestructorRan (in that order)</span></div>
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> <span class="keyword">auto</span> getDestructorState = [&amp;]() -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair&lt;bool, bool&gt;</a> {</div>
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> <span class="keywordtype">int</span> s = destructionState.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> <span class="keywordflow">return</span> {(s &amp; 1) != 0, (s &amp; 2) != 0};</div>
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> };</div>
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> <span class="keyword">auto</span> setDestructorRan = [&amp;]() -&gt; <span class="keywordtype">void</span> {</div>
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> destructionState.fetch_or(1, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> };</div>
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> <span class="keyword">auto</span> setPartialDeleteRan = [&amp;]() -&gt; <span class="keywordtype">void</span> {</div>
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> destructionState.fetch_or(2, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> };</div>
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span> <span class="keyword">auto</span> tracingCallback = [&amp;](TrackedState cur,</div>
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a> next) {</div>
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span> <span class="keyword">auto</span> [destructorRan, partialDeleteRan] = getDestructorState();</div>
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"> 655</span> <span class="keywordflow">if</span> (next == partiallyDeleted)</div>
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span> {</div>
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> BEAST_EXPECT(!partialDeleteRan &amp;&amp; !destructorRan);</div>
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"> 658</span> setPartialDeleteRan();</div>
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> }</div>
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"> 660</span> <span class="keywordflow">if</span> (next == deleted)</div>
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno"> 661</span> {</div>
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno"> 662</span> BEAST_EXPECT(!destructorRan);</div>
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> setDestructorRan();</div>
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> }</div>
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> };</div>
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> <span class="keyword">auto</span> createVecOfPointers = [&amp;](<span class="keyword">auto</span> <span class="keyword">const</span>&amp; toClone,</div>
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random.html">std::default_random_engine</a>&amp; eng)</div>
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt;<a class="code hl_class" href="classripple_1_1SharedWeakUnion.html">SharedWeakUnion&lt;TIBase&gt;</a>&gt; {</div>
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;SharedWeakUnion&lt;TIBase&gt;</a>&gt; result;</div>
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random/uniform_int_distribution.html">std::uniform_int_distribution&lt;&gt;</a> toCreateDist(4, 64);</div>
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> <span class="keyword">auto</span> numToCreate = toCreateDist(eng);</div>
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/reserve.html">reserve</a>(numToCreate);</div>
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numToCreate; ++i)</div>
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</span> result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(<a class="code hl_class" href="classripple_1_1SharedIntrusive.html">SharedIntrusive&lt;TIBase&gt;</a>(toClone));</div>
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno"> 675</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno"> 676</span> };</div>
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> loopIters = 2 * 1024;</div>
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> flipPointersLoopIters = 256;</div>
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> numThreads = 16;</div>
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;SharedIntrusive&lt;TIBase&gt;</a>&gt; toClone;</div>
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> loopStartSyncPoint{numThreads};</div>
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postCreateToCloneSyncPoint{numThreads};</div>
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postCreateVecOfPointersSyncPoint{numThreads};</div>
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postFlipPointersLoopSyncPoint{numThreads};</div>
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span> <span class="keyword">auto</span> engines = [&amp;]() -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::default_random_engine&gt;</a> {</div>
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random/random_device.html">std::random_device</a> rd;</div>
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno"> 687</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::default_random_engine&gt;</a> result;</div>
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno"> 688</span> result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/reserve.html">reserve</a>(numThreads);</div>
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno"> 689</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"> 690</span> result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/emplace_back.html">emplace_back</a>(rd());</div>
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> }();</div>
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span> </div>
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> <span class="comment">// cloneAndDestroy clones the strong pointer into a vector of</span></div>
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"> 695</span> <span class="comment">// mixed strong and weak pointers, runs a loop that randomly</span></div>
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> <span class="comment">// changes strong pointers to weak pointers, and destroys them</span></div>
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> <span class="comment">// all at once.</span></div>
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> <span class="keyword">auto</span> cloneAndDestroy = [&amp;](<span class="keywordtype">int</span> threadId) {</div>
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; loopIters; ++i)</div>
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> {</div>
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> loopStartSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> </div>
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> <span class="comment">// only thread 0 should reset the state</span></div>
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TIBase::ResetStatesGuard&gt;</a> rsg;</div>
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> <span class="keywordflow">if</span> (threadId == 0)</div>
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> {</div>
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> <span class="comment">// threadId 0 is the genesis thread. It creates the</span></div>
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> <span class="comment">// strong point to be cloned by the other threads. This</span></div>
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> <span class="comment">// thread will also check that the destructor ran and</span></div>
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> <span class="comment">// clear the temporary variables.</span></div>
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> rsg.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/utility/optional/emplace.html">emplace</a>(<span class="keyword">false</span>);</div>
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span> <span class="keyword">auto</span> [destructorRan, partialDeleteRan] =</div>
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> getDestructorState();</div>
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"> 715</span> BEAST_EXPECT(!i || destructorRan);</div>
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</span> destructionState.store(0, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_release</a>);</div>
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> </div>
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/clear.html">clear</a>();</div>
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span> toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/resize.html">resize</a>(numThreads);</div>
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> <span class="keyword">auto</span> strong = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span> strong-&gt;tracingCallback_ = tracingCallback;</div>
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/fill.html">std::fill</a>(toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), toClone.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>(), strong);</div>
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"> 723</span> }</div>
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno"> 724</span> </div>
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno"> 725</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"> 726</span> postCreateToCloneSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"> 727</span> </div>
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"> 728</span> <span class="keyword">auto</span> v =</div>
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno"> 729</span> createVecOfPointers(toClone[threadId], engines[threadId]);</div>
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno"> 730</span> toClone[threadId].reset();</div>
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno"> 731</span> </div>
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno"> 732</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno"> 733</span> postCreateVecOfPointersSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno"> 734</span> </div>
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno"> 735</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/random/uniform_int_distribution.html">std::uniform_int_distribution&lt;&gt;</a> isStrongDist(0, 1);</div>
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno"> 736</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> f = 0; f &lt; flipPointersLoopIters; ++f)</div>
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno"> 737</span> {</div>
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno"> 738</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; p : v)</div>
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno"> 739</span> {</div>
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno"> 740</span> <span class="keywordflow">if</span> (isStrongDist(engines[threadId]))</div>
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno"> 741</span> {</div>
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno"> 742</span> p.convertToStrong();</div>
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno"> 743</span> }</div>
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno"> 744</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno"> 745</span> {</div>
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno"> 746</span> p.convertToWeak();</div>
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno"> 747</span> }</div>
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno"> 748</span> }</div>
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno"> 749</span> }</div>
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno"> 750</span> </div>
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno"> 751</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno"> 752</span> postFlipPointersLoopSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno"> 753</span> </div>
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno"> 754</span> v.clear();</div>
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno"> 755</span> }</div>
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno"> 756</span> };</div>
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno"> 757</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::thread&gt;</a> threads;</div>
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno"> 758</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno"> 759</span> {</div>
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno"> 760</span> threads.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/emplace_back.html">emplace_back</a>(cloneAndDestroy, i);</div>
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno"> 761</span> }</div>
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno"> 762</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno"> 763</span> {</div>
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno"> 764</span> threads[i].join();</div>
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno"> 765</span> }</div>
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno"> 766</span> }</div>
</div>
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno"> 767</span> </div>
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno"> 768</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00769" data-start="{" data-end="}">
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a79add23e5f87fd040165d21c31a9ce9a"> 769</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a79add23e5f87fd040165d21c31a9ce9a">testMultithreadedLockingWeak</a>()</div>
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno"> 770</span> {</div>
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno"> 771</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">testcase</a>(<span class="stringliteral">&quot;Multithreaded Locking Weak&quot;</span>);</div>
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno"> 772</span> </div>
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno"> 773</span> <span class="comment">// This test creates a single shared atomic pointer that multiple thread</span></div>
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno"> 774</span> <span class="comment">// create weak pointers from. The threads then lock the weak pointers.</span></div>
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno"> 775</span> <span class="comment">// Both threads clear all the pointers and check that the invariants</span></div>
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno"> 776</span> <span class="comment">// hold.</span></div>
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno"> 777</span> </div>
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno"> 778</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno"> 779</span> </div>
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno"> 780</span> TIBase::ResetStatesGuard rsg{<span class="keyword">true</span>};</div>
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno"> 781</span> </div>
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno"> 782</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;int&gt;</a> destructionState{0};</div>
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno"> 783</span> <span class="comment">// returns destructorRan and partialDestructorRan (in that order)</span></div>
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno"> 784</span> <span class="keyword">auto</span> getDestructorState = [&amp;]() -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair&lt;bool, bool&gt;</a> {</div>
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno"> 785</span> <span class="keywordtype">int</span> s = destructionState.load(<a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_relaxed</a>);</div>
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno"> 786</span> <span class="keywordflow">return</span> {(s &amp; 1) != 0, (s &amp; 2) != 0};</div>
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno"> 787</span> };</div>
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno"> 788</span> <span class="keyword">auto</span> setDestructorRan = [&amp;]() -&gt; <span class="keywordtype">void</span> {</div>
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno"> 789</span> destructionState.fetch_or(1, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno"> 790</span> };</div>
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno"> 791</span> <span class="keyword">auto</span> setPartialDeleteRan = [&amp;]() -&gt; <span class="keywordtype">void</span> {</div>
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno"> 792</span> destructionState.fetch_or(2, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_acq_rel</a>);</div>
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno"> 793</span> };</div>
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno"> 794</span> <span class="keyword">auto</span> tracingCallback = [&amp;](TrackedState cur,</div>
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno"> 795</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TrackedState&gt;</a> next) {</div>
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno"> 796</span> <span class="keyword">using </span>enum TrackedState;</div>
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno"> 797</span> <span class="keyword">auto</span> [destructorRan, partialDeleteRan] = getDestructorState();</div>
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno"> 798</span> <span class="keywordflow">if</span> (next == partiallyDeleted)</div>
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno"> 799</span> {</div>
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno"> 800</span> BEAST_EXPECT(!partialDeleteRan &amp;&amp; !destructorRan);</div>
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno"> 801</span> setPartialDeleteRan();</div>
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno"> 802</span> }</div>
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno"> 803</span> <span class="keywordflow">if</span> (next == deleted)</div>
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno"> 804</span> {</div>
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno"> 805</span> BEAST_EXPECT(!destructorRan);</div>
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno"> 806</span> setDestructorRan();</div>
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno"> 807</span> }</div>
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno"> 808</span> };</div>
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno"> 809</span> </div>
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"> 810</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> loopIters = 2 * 1024;</div>
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno"> 811</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> lockWeakLoopIters = 256;</div>
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno"> 812</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> numThreads = 16;</div>
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno"> 813</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;SharedIntrusive&lt;TIBase&gt;</a>&gt; toLock;</div>
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno"> 814</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> loopStartSyncPoint{numThreads};</div>
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno"> 815</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postCreateToLockSyncPoint{numThreads};</div>
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno"> 816</span> <a class="code hl_struct" href="structripple_1_1tests_1_1Barrier.html">Barrier</a> postLockWeakLoopSyncPoint{numThreads};</div>
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno"> 817</span> </div>
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno"> 818</span> <span class="comment">// lockAndDestroy creates weak pointers from the strong pointer</span></div>
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno"> 819</span> <span class="comment">// and runs a loop that locks the weak pointer. At the end of the loop</span></div>
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno"> 820</span> <span class="comment">// all the pointers are destroyed all at once.</span></div>
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno"> 821</span> <span class="keyword">auto</span> lockAndDestroy = [&amp;](<span class="keywordtype">int</span> threadId) {</div>
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"> 822</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; loopIters; ++i)</div>
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno"> 823</span> {</div>
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno"> 824</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno"> 825</span> loopStartSyncPoint.<a class="code hl_function" href="structripple_1_1tests_1_1Barrier.html#a3024a052f980b05e9585a5f892a4c15a">arrive_and_wait</a>();</div>
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno"> 826</span> </div>
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno"> 827</span> <span class="comment">// only thread 0 should reset the state</span></div>
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno"> 828</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;TIBase::ResetStatesGuard&gt;</a> rsg;</div>
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno"> 829</span> <span class="keywordflow">if</span> (threadId == 0)</div>
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno"> 830</span> {</div>
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno"> 831</span> <span class="comment">// threadId 0 is the genesis thread. It creates the</span></div>
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno"> 832</span> <span class="comment">// strong point to be locked by the other threads. This</span></div>
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno"> 833</span> <span class="comment">// thread will also check that the destructor ran and</span></div>
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno"> 834</span> <span class="comment">// clear the temporary variables.</span></div>
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno"> 835</span> rsg.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/utility/optional/emplace.html">emplace</a>(<span class="keyword">false</span>);</div>
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno"> 836</span> <span class="keyword">auto</span> [destructorRan, partialDeleteRan] =</div>
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno"> 837</span> getDestructorState();</div>
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno"> 838</span> BEAST_EXPECT(!i || destructorRan);</div>
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno"> 839</span> destructionState.store(0, <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::memory_order_release</a>);</div>
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno"> 840</span> </div>
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"> 841</span> toLock.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/clear.html">clear</a>();</div>
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno"> 842</span> toLock.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/resize.html">resize</a>(numThreads);</div>
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno"> 843</span> <span class="keyword">auto</span> strong = make_SharedIntrusive&lt;TIBase&gt;();</div>
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno"> 844</span> strong-&gt;tracingCallback_ = tracingCallback;</div>
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno"> 845</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/fill.html">std::fill</a>(toLock.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), toLock.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>(), strong);</div>
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno"> 846</span> }</div>
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno"> 847</span> </div>
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno"> 848</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno"> 849</span> postCreateToLockSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno"> 850</span> </div>
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno"> 851</span> <span class="comment">// Multiple threads all create a weak pointer from the same</span></div>
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno"> 852</span> <span class="comment">// strong pointer</span></div>
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno"> 853</span> <a class="code hl_class" href="classripple_1_1WeakIntrusive.html">WeakIntrusive</a> weak{toLock[threadId]};</div>
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno"> 854</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> wi = 0; wi &lt; lockWeakLoopIters; ++wi)</div>
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno"> 855</span> {</div>
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno"> 856</span> BEAST_EXPECT(!weak.expired());</div>
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno"> 857</span> <span class="keyword">auto</span> strong = weak.lock();</div>
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno"> 858</span> BEAST_EXPECT(strong);</div>
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno"> 859</span> }</div>
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno"> 860</span> </div>
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno"> 861</span> <span class="comment">// ------ Sync Point ------</span></div>
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno"> 862</span> postLockWeakLoopSyncPoint.arrive_and_wait();</div>
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno"> 863</span> </div>
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno"> 864</span> toLock[threadId].reset();</div>
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno"> 865</span> }</div>
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno"> 866</span> };</div>
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno"> 867</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;std::thread&gt;</a> threads;</div>
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno"> 868</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno"> 869</span> {</div>
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno"> 870</span> threads.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/emplace_back.html">emplace_back</a>(lockAndDestroy, i);</div>
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno"> 871</span> }</div>
<div class="line"><a id="l00872" name="l00872"></a><span class="lineno"> 872</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; numThreads; ++i)</div>
<div class="line"><a id="l00873" name="l00873"></a><span class="lineno"> 873</span> {</div>
<div class="line"><a id="l00874" name="l00874"></a><span class="lineno"> 874</span> threads[i].join();</div>
<div class="line"><a id="l00875" name="l00875"></a><span class="lineno"> 875</span> }</div>
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno"> 876</span> }</div>
</div>
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno"> 877</span> </div>
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno"> 878</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00879" data-start="{" data-end="}">
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno"><a class="line" href="classripple_1_1tests_1_1IntrusiveShared__test.html#ac2d35432cbc707b838c0cb11ce6ddd94"> 879</a></span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#ac2d35432cbc707b838c0cb11ce6ddd94">run</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno"> 880</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno"> 881</span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#afd702bb5084b97f82f9dc53124e8316d">testBasics</a>();</div>
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno"> 882</span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#af2a1c944c4a7e84b0909f74dd7ffecf3">testPartialDelete</a>();</div>
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno"> 883</span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a8902dcc2f391c0181d18c8cd18cce534">testDestructor</a>();</div>
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno"> 884</span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a4c2e8bcf2505eb1e12af38011846d826">testMultithreadedClearMixedVariant</a>();</div>
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno"> 885</span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a620aec6a6233cb68d20b824029555485">testMultithreadedClearMixedUnion</a>();</div>
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno"> 886</span> <a class="code hl_function" href="classripple_1_1tests_1_1IntrusiveShared__test.html#a79add23e5f87fd040165d21c31a9ce9a">testMultithreadedLockingWeak</a>();</div>
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno"> 887</span> }</div>
</div>
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno"> 888</span>}; <span class="comment">// namespace tests</span></div>
</div>
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno"> 889</span> </div>
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno"><a class="line" href="namespaceripple_1_1tests.html#aeec698da3a357cd5ebec1bee1b07d4a0"> 890</a></span>BEAST_DEFINE_TESTSUITE(IntrusiveShared, basics, <a class="code hl_namespace" href="namespaceripple.html">ripple</a>);</div>
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno"> 891</span>} <span class="comment">// namespace tests</span></div>
</div>
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno"> 892</span>} <span class="comment">// namespace ripple</span></div>
<div class="ttc" id="aarray_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/array.html">array</a></div></div>
<div class="ttc" id="aatomic_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a></div></div>
<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/begin.html">std::vector::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
<div class="ttc" id="achrono_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/chrono.html">chrono</a></div></div>
<div class="ttc" id="aclassbeast_1_1unit__test_1_1suite_html"><div class="ttname"><a href="classbeast_1_1unit__test_1_1suite.html">beast::unit_test::suite</a></div><div class="ttdoc">A testsuite class.</div><div class="ttdef"><b>Definition</b> <a href="suite_8h_source.html#l00054">suite.h:55</a></div></div>
<div class="ttc" id="aclassbeast_1_1unit__test_1_1suite_html_aaa1237d9b85c69d35fe86645cee094b5"><div class="ttname"><a href="classbeast_1_1unit__test_1_1suite.html#aaa1237d9b85c69d35fe86645cee094b5">beast::unit_test::suite::testcase</a></div><div class="ttdeci">testcase_t testcase</div><div class="ttdoc">Memberspace for declaring test cases.</div><div class="ttdef"><b>Definition</b> <a href="suite_8h_source.html#l00155">suite.h:155</a></div></div>
<div class="ttc" id="aclassripple_1_1SharedIntrusive_html"><div class="ttname"><a href="classripple_1_1SharedIntrusive.html">ripple::SharedIntrusive</a></div><div class="ttdoc">A shared intrusive pointer class that supports weak pointers.</div><div class="ttdef"><b>Definition</b> <a href="IntrusivePointer_8h_source.html#l00087">IntrusivePointer.h:88</a></div></div>
<div class="ttc" id="aclassripple_1_1SharedWeakUnion_html"><div class="ttname"><a href="classripple_1_1SharedWeakUnion.html">ripple::SharedWeakUnion</a></div><div class="ttdoc">A combination of a strong and a weak intrusive pointer stored in the space of a single pointer.</div><div class="ttdef"><b>Definition</b> <a href="IntrusivePointer_8h_source.html#l00321">IntrusivePointer.h:322</a></div></div>
<div class="ttc" id="aclassripple_1_1SharedWeakUnion_html_a5f9b80090815d0a5bd676795ddc9bcc4"><div class="ttname"><a href="classripple_1_1SharedWeakUnion.html#a5f9b80090815d0a5bd676795ddc9bcc4">ripple::SharedWeakUnion::isStrong</a></div><div class="ttdeci">bool isStrong() const</div><div class="ttdoc">Return true is this represents a strong pointer.</div></div>
<div class="ttc" id="aclassripple_1_1SharedWeakUnion_html_aadc1e414a1dbb42a0294cbf9303a2c65"><div class="ttname"><a href="classripple_1_1SharedWeakUnion.html#aadc1e414a1dbb42a0294cbf9303a2c65">ripple::SharedWeakUnion::get</a></div><div class="ttdeci">T * get() const</div><div class="ttdoc">If this is a strong pointer, return the raw pointer.</div></div>
<div class="ttc" id="aclassripple_1_1SharedWeakUnion_html_ab5386228e1dc5f481ffe6412038bd6d8"><div class="ttname"><a href="classripple_1_1SharedWeakUnion.html#ab5386228e1dc5f481ffe6412038bd6d8">ripple::SharedWeakUnion::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdoc">Set the pointer to null, decrement the appropriate ref count, and run the appropriate release action.</div></div>
<div class="ttc" id="aclassripple_1_1WeakIntrusive_html"><div class="ttname"><a href="classripple_1_1WeakIntrusive.html">ripple::WeakIntrusive</a></div><div class="ttdoc">A weak intrusive pointer class for the SharedIntrusive pointer class.</div><div class="ttdef"><b>Definition</b> <a href="IntrusivePointer_8h_source.html#l00243">IntrusivePointer.h:244</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html">ripple::tests::IntrusiveShared_test</a></div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00191">IntrusiveShared_test.cpp:192</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_a4c2e8bcf2505eb1e12af38011846d826"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#a4c2e8bcf2505eb1e12af38011846d826">ripple::tests::IntrusiveShared_test::testMultithreadedClearMixedVariant</a></div><div class="ttdeci">void testMultithreadedClearMixedVariant()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00487">IntrusiveShared_test.cpp:487</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_a620aec6a6233cb68d20b824029555485"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#a620aec6a6233cb68d20b824029555485">ripple::tests::IntrusiveShared_test::testMultithreadedClearMixedUnion</a></div><div class="ttdeci">void testMultithreadedClearMixedUnion()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00621">IntrusiveShared_test.cpp:621</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_a79add23e5f87fd040165d21c31a9ce9a"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#a79add23e5f87fd040165d21c31a9ce9a">ripple::tests::IntrusiveShared_test::testMultithreadedLockingWeak</a></div><div class="ttdeci">void testMultithreadedLockingWeak()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00769">IntrusiveShared_test.cpp:769</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_a8902dcc2f391c0181d18c8cd18cce534"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#a8902dcc2f391c0181d18c8cd18cce534">ripple::tests::IntrusiveShared_test::testDestructor</a></div><div class="ttdeci">void testDestructor()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00437">IntrusiveShared_test.cpp:437</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_ac2d35432cbc707b838c0cb11ce6ddd94"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#ac2d35432cbc707b838c0cb11ce6ddd94">ripple::tests::IntrusiveShared_test::run</a></div><div class="ttdeci">void run() override</div><div class="ttdoc">Runs the suite.</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00879">IntrusiveShared_test.cpp:879</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_af2a1c944c4a7e84b0909f74dd7ffecf3"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#af2a1c944c4a7e84b0909f74dd7ffecf3">ripple::tests::IntrusiveShared_test::testPartialDelete</a></div><div class="ttdeci">void testPartialDelete()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00370">IntrusiveShared_test.cpp:370</a></div></div>
<div class="ttc" id="aclassripple_1_1tests_1_1IntrusiveShared__test_html_afd702bb5084b97f82f9dc53124e8316d"><div class="ttname"><a href="classripple_1_1tests_1_1IntrusiveShared__test.html#afd702bb5084b97f82f9dc53124e8316d">ripple::tests::IntrusiveShared_test::testBasics</a></div><div class="ttdeci">void testBasics()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00195">IntrusiveShared_test.cpp:195</a></div></div>
<div class="ttc" id="aclear_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/clear.html">std::vector::clear</a></div><div class="ttdeci">T clear(T... args)</div></div>
<div class="ttc" id="acondition_variable_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/condition_variable.html">condition_variable</a></div></div>
<div class="ttc" id="aemplace_back_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/emplace_back.html">std::vector::emplace_back</a></div><div class="ttdeci">T emplace_back(T... args)</div></div>
<div class="ttc" id="aemplace_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional/emplace.html">std::optional::emplace</a></div><div class="ttdeci">T emplace(T... args)</div></div>
<div class="ttc" id="aempty_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/empty.html">std::vector::empty</a></div><div class="ttdeci">T empty(T... args)</div></div>
<div class="ttc" id="aend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/end.html">std::vector::end</a></div><div class="ttdeci">T end(T... args)</div></div>
<div class="ttc" id="afetch_add_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/atomic/atomic/fetch_add.html">std::atomic::fetch_add</a></div><div class="ttdeci">T fetch_add(T... args)</div></div>
<div class="ttc" id="afill_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/fill.html">std::fill</a></div><div class="ttdeci">T fill(T... args)</div></div>
<div class="ttc" id="afunction_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a></div></div>
<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a></div></div>
<div class="ttc" id="ais_same_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_same.html">std::is_same_v</a></div><div class="ttdeci">T is_same_v</div></div>
<div class="ttc" id="ajoin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/thread/join.html">std::thread::join</a></div><div class="ttdeci">T join(T... args)</div></div>
<div class="ttc" id="alatch_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/latch.html">std::latch</a></div></div>
<div class="ttc" id="amutex_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/mutex.html">std::mutex</a></div></div>
<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition</b> <a href="algorithm_8h_source.html#l00025">algorithm.h:25</a></div></div>
<div class="ttc" id="anamespaceripple_html_a3b64e12be521bde0f95af971c64faf71afb14982288108e1fbd6207ef55f05027"><div class="ttname"><a href="namespaceripple.html#a3b64e12be521bde0f95af971c64faf71afb14982288108e1fbd6207ef55f05027">ripple::ReleaseWeakRefAction::destroy</a></div><div class="ttdeci">@ destroy</div></div>
<div class="ttc" id="anamespaceripple_html_a4aaf0c41d96f26147ee484a7b8dee51b"><div class="ttname"><a href="namespaceripple.html#a4aaf0c41d96f26147ee484a7b8dee51b">ripple::partialDestructorFinished</a></div><div class="ttdeci">void partialDestructorFinished(T **o)</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveRefCounts_8h_source.html#l00479">IntrusiveRefCounts.h:479</a></div></div>
<div class="ttc" id="anamespaceripple_html_ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894"><div class="ttname"><a href="namespaceripple.html#ac34a69f56216ea1e430c09ba049bf0aeaeb6e922eacce325bdb070a71f7ef7894">ripple::ReleaseStrongRefAction::partialDestroy</a></div><div class="ttdeci">@ partialDestroy</div></div>
<div class="ttc" id="anotify_all_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/condition_variable/notify_all.html">std::condition_variable::notify_all</a></div><div class="ttdeci">T notify_all(T... args)</div></div>
<div class="ttc" id="aoptional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/optional.html">optional</a></div></div>
<div class="ttc" id="apair_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair</a></div></div>
<div class="ttc" id="apush_back_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">std::vector::push_back</a></div><div class="ttdeci">T push_back(T... args)</div></div>
<div class="ttc" id="arandom_device_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/random/random_device.html">std::random_device</a></div></div>
<div class="ttc" id="arandom_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/random.html">random</a></div></div>
<div class="ttc" id="areserve_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/reserve.html">std::vector::reserve</a></div><div class="ttdeci">T reserve(T... args)</div></div>
<div class="ttc" id="aresize_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/resize.html">std::vector::resize</a></div><div class="ttdeci">T resize(T... args)</div></div>
<div class="ttc" id="asize_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/size.html">std::vector::size</a></div><div class="ttdeci">T size(T... args)</div></div>
<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
<div class="ttc" id="asleep_for_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/sleep_for.html">std::this_thread::sleep_for</a></div><div class="ttdeci">T sleep_for(T... args)</div></div>
<div class="ttc" id="astore_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/atomic/atomic/store.html">std::atomic::store</a></div><div class="ttdeci">T store(T... args)</div></div>
<div class="ttc" id="astring_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/string.html">string</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html">ripple::tests::Barrier</a></div><div class="ttdoc">Experimentally, we discovered that using std::barrier performs extremely poorly (~1 hour vs ~1 minute...</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00045">IntrusiveShared_test.cpp:46</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html_a023130d72e3cc9fbc1d6640447f3c5a2"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html#a023130d72e3cc9fbc1d6640447f3c5a2">ripple::tests::Barrier::mtx</a></div><div class="ttdeci">std::mutex mtx</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00047">IntrusiveShared_test.cpp:47</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html_a3024a052f980b05e9585a5f892a4c15a"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html#a3024a052f980b05e9585a5f892a4c15a">ripple::tests::Barrier::arrive_and_wait</a></div><div class="ttdeci">void arrive_and_wait()</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00057">IntrusiveShared_test.cpp:57</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html_a4eb5b73370cd75c8ceef03605f903fa7"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html#a4eb5b73370cd75c8ceef03605f903fa7">ripple::tests::Barrier::count</a></div><div class="ttdeci">int count</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00049">IntrusiveShared_test.cpp:49</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html_a9db675aa86b2b103110ae21b991ae6af"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html#a9db675aa86b2b103110ae21b991ae6af">ripple::tests::Barrier::Barrier</a></div><div class="ttdeci">Barrier(int n)</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00052">IntrusiveShared_test.cpp:52</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html_aab2456bc9b654d4387f4d3ca6abee348"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html#aab2456bc9b654d4387f4d3ca6abee348">ripple::tests::Barrier::initial</a></div><div class="ttdeci">int const initial</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00050">IntrusiveShared_test.cpp:50</a></div></div>
<div class="ttc" id="astructripple_1_1tests_1_1Barrier_html_abbafe75d92ca1705f9e48d32a34fb825"><div class="ttname"><a href="structripple_1_1tests_1_1Barrier.html#abbafe75d92ca1705f9e48d32a34fb825">ripple::tests::Barrier::cv</a></div><div class="ttdeci">std::condition_variable cv</div><div class="ttdef"><b>Definition</b> <a href="IntrusiveShared__test_8cpp_source.html#l00048">IntrusiveShared_test.cpp:48</a></div></div>
<div class="ttc" id="athread_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/thread.html">thread</a></div></div>
<div class="ttc" id="auniform_int_distribution_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/random/uniform_int_distribution.html">std::uniform_int_distribution</a></div></div>
<div class="ttc" id="aunique_lock_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/unique_lock.html">std::unique_lock</a></div></div>
<div class="ttc" id="avariant_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/variant.html">variant</a></div></div>
<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a></div></div>
<div class="ttc" id="await_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/condition_variable/wait.html">std::condition_variable::wait</a></div><div class="ttdeci">T wait(T... args)</div></div>
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