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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_7749a6d72d71c606925d7a83be5aed68.html">consensus</a></li> </ul>
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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/csf.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include &lt;test/csf/random.h&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;xrpl/beast/unit_test.h&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/utility.html">utility</a>&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="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">namespace </span>test {</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="foldopen" id="foldopen00011" data-start="{" data-end="};">
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"><a class="line" href="classripple_1_1test_1_1ScaleFreeSim__test.html"> 11</a></span><span class="keyword">class </span><a class="code hl_class" href="classripple_1_1test_1_1ScaleFreeSim__test.html">ScaleFreeSim_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="l00012" name="l00012"></a><span class="lineno"> 12</span>{</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> <span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00014" data-start="{" data-end="}">
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"><a class="line" href="classripple_1_1test_1_1ScaleFreeSim__test.html#a56102100aa5a77421e77238d206c7536"> 14</a></span> <a class="code hl_function" href="classripple_1_1test_1_1ScaleFreeSim__test.html#a56102100aa5a77421e77238d206c7536">run</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">using namespace </span><a class="code hl_namespaceRef" href="http://en.cppreference.com/w/namespacestd_1_1chrono.html">std::chrono</a>;</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">using namespace </span>csf;</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// Generate a quasi-random scale free network and simulate consensus</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// as we vary transaction submission rates</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordtype">int</span> <span class="keyword">const</span> N = 100; <span class="comment">// Peers</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">int</span> <span class="keyword">const</span> numUNLs = 15; <span class="comment">// UNL lists</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordtype">int</span> <span class="keyword">const</span> minUNLSize = N / 4, maxUNLSize = N / 2;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <a class="code hl_struct" href="structripple_1_1ConsensusParms.html">ConsensusParms</a> <span class="keyword">const</span> parms{};</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> Sim sim;</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> PeerGroup network = sim.createGroup(N);</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// generate trust ranks</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;double&gt;</a> <span class="keyword">const</span> ranks =</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> sample(network.size(), PowerLawDistribution{1, 3}, sim.rng);</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// generate scale-free trust graph</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> randomRankedTrust(</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> network,</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> ranks,</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> numUNLs,</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</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>{minUNLSize, maxUNLSize},</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> sim.rng);</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// nodes with a trust line in either direction are network-connected</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> network.connectFromTrust(</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> round&lt;milliseconds&gt;(0.2 * parms.ledgerGRANULARITY));</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"> 47</span> <span class="comment">// Initialize collectors to track statistics to report</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> TxCollector txCollector;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> LedgerCollector ledgerCollector;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">auto</span> colls = makeCollectors(txCollector, ledgerCollector);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> sim.collectors.add(colls);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// Initial round to set prior state</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> sim.run(1);</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="comment">// Initialize timers</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> HeartbeatTimer heart(sim.scheduler, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">seconds</a>(10s));</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> <span class="comment">// Run for 10 minues, submitting 100 tx/second</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::nanoseconds</a> <span class="keyword">const</span> simDuration = 10min;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::nanoseconds</a> <span class="keyword">const</span> quiet = 10s;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_struct" href="structripple_1_1Rate.html">Rate</a> <span class="keyword">const</span> <a class="code hl_function" href="namespaceripple_1_1test_1_1jtx.html#a8e8d814b8820ce0b6979abde0d6a2618">rate</a>{100, 1000ms};</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// txs, start/stop/step, target</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">auto</span> peerSelector =</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> makeSelector(network.begin(), network.end(), ranks, sim.rng);</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">auto</span> txSubmitter = makeSubmitter(</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> ConstantDistribution{<a class="code hl_function" href="namespaceripple_1_1test_1_1jtx.html#a8e8d814b8820ce0b6979abde0d6a2618">rate</a>.inv()},</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> sim.scheduler.now() + quiet,</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> sim.scheduler.now() + (simDuration - quiet),</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> peerSelector,</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> sim.scheduler,</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> sim.rng);</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="comment">// run simulation for given duration</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> heart.start();</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> sim.run(simDuration);</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> BEAST_EXPECT(sim.branches() == 1);</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> BEAST_EXPECT(sim.synchronized());</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="comment">// TODO: Clean up this formatting mess!!</span></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> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a> &lt;&lt; <span class="stringliteral">&quot;Peers: &quot;</span> &lt;&lt; network.size() &lt;&lt; <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a> &lt;&lt; <span class="stringliteral">&quot;Simulated Duration: &quot;</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> &lt;&lt; duration_cast&lt;milliseconds&gt;(simDuration).count() &lt;&lt; <span class="stringliteral">&quot; ms&quot;</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> &lt;&lt; <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a> &lt;&lt; <span class="stringliteral">&quot;Branches: &quot;</span> &lt;&lt; sim.branches() &lt;&lt; <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a> &lt;&lt; <span class="stringliteral">&quot;Synchronized: &quot;</span> &lt;&lt; (sim.synchronized() ? <span class="stringliteral">&quot;Y&quot;</span> : <span class="stringliteral">&quot;N&quot;</span>)</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> &lt;&lt; <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a> &lt;&lt; <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> txCollector.report(simDuration, <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a>);</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> ledgerCollector.report(simDuration, <a class="code hl_variable" href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">log</a>);</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// Print summary?</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// # forks? # of LCLs?</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// # peers</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// # tx submitted</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// # ledgers/sec etc.?</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span>};</div>
</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"><a class="line" href="namespaceripple_1_1test.html#aff13ffa03edcaaf391e75a8646b09e7b"> 103</a></span>BEAST_DEFINE_TESTSUITE_MANUAL_PRIO(ScaleFreeSim, consensus, <a class="code hl_namespace" href="namespaceripple.html">ripple</a>, 80);</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span>} <span class="comment">// namespace test</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span>} <span class="comment">// namespace ripple</span></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#l00051">suite.h:52</a></div></div>
<div class="ttc" id="aclassbeast_1_1unit__test_1_1suite_html_a19b8ee0ce850d78834984655ae83b20e"><div class="ttname"><a href="classbeast_1_1unit__test_1_1suite.html#a19b8ee0ce850d78834984655ae83b20e">beast::unit_test::suite::log</a></div><div class="ttdeci">log_os&lt; char &gt; log</div><div class="ttdoc">Logging output stream.</div><div class="ttdef"><b>Definition</b> <a href="suite_8h_source.html#l00149">suite.h:149</a></div></div>
<div class="ttc" id="aclassripple_1_1test_1_1ScaleFreeSim__test_html"><div class="ttname"><a href="classripple_1_1test_1_1ScaleFreeSim__test.html">ripple::test::ScaleFreeSim_test</a></div><div class="ttdef"><b>Definition</b> <a href="ScaleFreeSim__test_8cpp_source.html#l00011">ScaleFreeSim_test.cpp:12</a></div></div>
<div class="ttc" id="aclassripple_1_1test_1_1ScaleFreeSim__test_html_a56102100aa5a77421e77238d206c7536"><div class="ttname"><a href="classripple_1_1test_1_1ScaleFreeSim__test.html#a56102100aa5a77421e77238d206c7536">ripple::test::ScaleFreeSim_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="ScaleFreeSim__test_8cpp_source.html#l00014">ScaleFreeSim_test.cpp:14</a></div></div>
<div class="ttc" id="aduration_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::seconds</a></div></div>
<div class="ttc" id="aendl_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a></div><div class="ttdeci">T endl(T... args)</div></div>
<div class="ttc" id="anamespaceripple_1_1test_1_1jtx_html_a8e8d814b8820ce0b6979abde0d6a2618"><div class="ttname"><a href="namespaceripple_1_1test_1_1jtx.html#a8e8d814b8820ce0b6979abde0d6a2618">ripple::test::jtx::rate</a></div><div class="ttdeci">Json::Value rate(Account const &amp;account, double multiplier)</div><div class="ttdoc">Set a transfer rate.</div><div class="ttdef"><b>Definition</b> <a href="rate_8cpp_source.html#l00013">rate.cpp:13</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#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="anamespacestd_1_1chrono_html"><div class="ttname"><a href="http://en.cppreference.com/w/namespacestd_1_1chrono.html">std::chrono</a></div></div>
<div class="ttc" id="astructripple_1_1ConsensusParms_html"><div class="ttname"><a href="structripple_1_1ConsensusParms.html">ripple::ConsensusParms</a></div><div class="ttdoc">Consensus algorithm parameters.</div><div class="ttdef"><b>Definition</b> <a href="ConsensusParms_8h_source.html#l00019">ConsensusParms.h:20</a></div></div>
<div class="ttc" id="astructripple_1_1Rate_html"><div class="ttname"><a href="structripple_1_1Rate.html">ripple::Rate</a></div><div class="ttdoc">Represents a transfer rate.</div><div class="ttdef"><b>Definition</b> <a href="Rate_8h_source.html#l00020">Rate.h:21</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="autility_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/utility.html">utility</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>
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