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<li class="navelem"><a class="el" href="dir_df9c78dcf3f59a33b12284f95992a64b.html">ripple</a></li><li class="navelem"><a class="el" href="dir_20e3efd5b2bc43fb837b12b621a85eb0.html">consensus</a></li> </ul>
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<div class="title">Consensus.cpp</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//------------------------------------------------------------------------------</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (c) 2012, 2013 Ripple Labs Inc.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <ripple/basics/Log.h></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <ripple/consensus/Consensus.h></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="namespaceripple.html#a216564c8f7b3d3c62ceb75d04097a8c3"> 26</a></span> <a class="code" href="namespaceripple.html#a216564c8f7b3d3c62ceb75d04097a8c3">shouldCloseLedger</a>(</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordtype">bool</span> anyTransactions,</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> prevProposers,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> proposersClosed,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> proposersValidated,</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a> prevRoundTime,</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  timeSincePrevClose, <span class="comment">// Time since last ledger's close time</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a> openTime, <span class="comment">// Time waiting to close this ledger</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional<std::chrono::milliseconds></a> validationDelay,</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a> idleInterval,</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="structripple_1_1ConsensusParms.html">ConsensusParms</a> <span class="keyword">const</span>& parms,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="classbeast_1_1Journal.html">beast::Journal</a> j)</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">using namespace </span>std::chrono_literals;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span> ((prevRoundTime < -1s) || (prevRoundTime > 10min) ||</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  (timeSincePrevClose > 10min))</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// These are unexpected cases, we just close the ledger</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#ad8fefe3e8ad583e1ed1bf02094ac3d8f">warn</a>()) << <span class="stringliteral">"Trans="</span> << (anyTransactions ? <span class="stringliteral">"yes"</span> : <span class="stringliteral">"no"</span>)</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  << <span class="stringliteral">" Prop: "</span> << prevProposers << <span class="stringliteral">"/"</span> << proposersClosed</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  << <span class="stringliteral">" Secs: "</span> << timeSincePrevClose.<a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration/count.html">count</a>()</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  << <span class="stringliteral">" (last: "</span> << prevRoundTime.<a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration/count.html">count</a>() << <span class="stringliteral">")"</span>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  }</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">if</span> ((proposersClosed + proposersValidated) > (prevProposers / 2))</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// If more than half of the network has closed, we close</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) << <span class="stringliteral">"Others have closed"</span>;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// The openTime is the time spent so far waiting to close the ledger.</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// Any time spent retrying ledger validation in the previous round is</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// also counted.</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (validationDelay)</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  openTime += *validationDelay;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (!anyTransactions)</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// Only close at the end of the idle interval</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> timeSincePrevClose >= idleInterval; <span class="comment">// normal idle</span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  </div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// Preserve minimum ledger open time</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">if</span> (openTime < parms.<a class="code" href="structripple_1_1ConsensusParms.html#a8b3b41a8faceadfb268d0baefaaf64d3">ledgerMIN_CLOSE</a>)</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) << <span class="stringliteral">"Must wait minimum time before closing"</span>;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  }</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// Don't let this ledger close more than twice as fast as the previous</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// ledger reached consensus so that slower validators can slow down</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// the network</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (openTime < (prevRoundTime / 2))</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  {</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) << <span class="stringliteral">"Ledger has not been open long enough"</span>;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// Close the ledger</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="namespaceripple.html#a21eb28deaa9d642c0e0a7d8bbec0f602"> 93</a></span> <a class="code" href="namespaceripple.html#a21eb28deaa9d642c0e0a7d8bbec0f602">checkConsensusReached</a>(</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> agreeing,</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> total,</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">bool</span> count_self,</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> minConsensusPct)</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// If we are alone, we have a consensus</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> (total == 0)</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  </div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (count_self)</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  ++agreeing;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  ++total;</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> currentPercentage = (agreeing * 100) / total;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> currentPercentage >= minConsensusPct;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> }</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <a class="code" href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1">ConsensusState</a></div>
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<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="namespaceripple.html#a2e640e92bd561e94c1800ea388975d94"> 115</a></span> <a class="code" href="namespaceripple.html#a2e640e92bd561e94c1800ea388975d94">checkConsensus</a>(</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> prevProposers,</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> currentProposers,</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> currentAgree,</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> currentFinished,</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a> previousAgreeTime,</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a> currentAgreeTime,</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="structripple_1_1ConsensusParms.html">ConsensusParms</a> <span class="keyword">const</span>& parms,</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">bool</span> proposing,</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="classbeast_1_1Journal.html">beast::Journal</a> j)</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) << <span class="stringliteral">"checkConsensus: prop="</span> << currentProposers << <span class="stringliteral">"/"</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  << prevProposers << <span class="stringliteral">" agree="</span> << currentAgree</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  << <span class="stringliteral">" validated="</span> << currentFinished</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  << <span class="stringliteral">" time="</span> << currentAgreeTime.<a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration/count.html">count</a>() << <span class="stringliteral">"/"</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  << previousAgreeTime.<a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration/count.html">count</a>();</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (currentProposers < (prevProposers * 3 / 4))</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Less than 3/4 of the last ledger's proposers are present; don't</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// rush: we may need more time.</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (currentAgreeTime < (previousAgreeTime + parms.<a class="code" href="structripple_1_1ConsensusParms.html#a0939202b250b3e1577d24a0c5723aaed">ledgerMIN_CONSENSUS</a>))</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) << <span class="stringliteral">"too fast, not enough proposers"</span>;</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1abafd7322c6e97d25b6299b5d6fe8920b">ConsensusState::No</a>;</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  </div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// Have we, together with the nodes on our UNL list, reached the threshold</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// to declare consensus?</span></div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceripple.html#a21eb28deaa9d642c0e0a7d8bbec0f602">checkConsensusReached</a>(</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  currentAgree, currentProposers, <a class="code" href="namespaceripple.html#a33f8b6e68b5f63faf2e9755cc251563ea80dcf57f5ecd4be3cbfa37eccbcb6f44">proposing</a>, parms.<a class="code" href="structripple_1_1ConsensusParms.html#a0520be4c7ae7e150218c24cfa09fb2a3">minCONSENSUS_PCT</a>))</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) << <span class="stringliteral">"normal consensus"</span>;</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1a93cba07454f06a4a960172bbd6e2a435">ConsensusState::Yes</a>;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  </div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// Have sufficient nodes on our UNL list moved on and reached the threshold</span></div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// to declare consensus?</span></div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceripple.html#a21eb28deaa9d642c0e0a7d8bbec0f602">checkConsensusReached</a>(</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  currentFinished, currentProposers, <span class="keyword">false</span>, parms.<a class="code" href="structripple_1_1ConsensusParms.html#a0520be4c7ae7e150218c24cfa09fb2a3">minCONSENSUS_PCT</a>))</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  {</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#ad8fefe3e8ad583e1ed1bf02094ac3d8f">warn</a>()) << <span class="stringliteral">"We see no consensus, but 80% of nodes have moved on"</span>;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1a6978081a12147518207c7512374c5c80">ConsensusState::MovedOn</a>;</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// no consensus yet</span></div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  JLOG(j.<a class="code" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) << <span class="stringliteral">"checkConsensus no consensus"</span>;</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1abafd7322c6e97d25b6299b5d6fe8920b">ConsensusState::No</a>;</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> }</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  </div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> } <span class="comment">// namespace ripple</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceripple_html_a2e640e92bd561e94c1800ea388975d94"><div class="ttname"><a href="namespaceripple.html#a2e640e92bd561e94c1800ea388975d94">ripple::checkConsensus</a></div><div class="ttdeci">ConsensusState checkConsensus(std::size_t prevProposers, std::size_t currentProposers, std::size_t currentAgree, std::size_t currentFinished, std::chrono::milliseconds previousAgreeTime, std::chrono::milliseconds currentAgreeTime, ConsensusParms const &parms, bool proposing, beast::Journal j)</div><div class="ttdoc">Determine whether the network reached consensus and whether we joined.</div><div class="ttdef"><b>Definition:</b> <a href="Consensus_8cpp_source.html#l00115">Consensus.cpp:115</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a79cc3b590c118bd551b693bb333fb9d1"><div class="ttname"><a href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1">ripple::ConsensusState</a></div><div class="ttdeci">ConsensusState</div><div class="ttdoc">Whether we have or don't have a consensus.</div><div class="ttdef"><b>Definition:</b> <a href="ConsensusTypes_8h_source.html#l00185">ConsensusTypes.h:185</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a33f8b6e68b5f63faf2e9755cc251563ea80dcf57f5ecd4be3cbfa37eccbcb6f44"><div class="ttname"><a href="namespaceripple.html#a33f8b6e68b5f63faf2e9755cc251563ea80dcf57f5ecd4be3cbfa37eccbcb6f44">ripple::ConsensusMode::proposing</a></div><div class="ttdeci">@ proposing</div><div class="ttdoc">We are normal participant in consensus and propose our position.</div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_abbe082bd27ca0f1d1365af2824e4f85b"><div class="ttname"><a href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">beast::Journal::trace</a></div><div class="ttdeci">Stream trace() const</div><div class="ttdoc">Severity stream access functions.</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00309">Journal.h:309</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a79cc3b590c118bd551b693bb333fb9d1a93cba07454f06a4a960172bbd6e2a435"><div class="ttname"><a href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1a93cba07454f06a4a960172bbd6e2a435">ripple::ConsensusState::Yes</a></div><div class="ttdeci">@ Yes</div><div class="ttdoc">We have consensus along with the network.</div></div>
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<div class="ttc" id="anamespaceripple_html_a21eb28deaa9d642c0e0a7d8bbec0f602"><div class="ttname"><a href="namespaceripple.html#a21eb28deaa9d642c0e0a7d8bbec0f602">ripple::checkConsensusReached</a></div><div class="ttdeci">bool checkConsensusReached(std::size_t agreeing, std::size_t total, bool count_self, std::size_t minConsensusPct)</div><div class="ttdef"><b>Definition:</b> <a href="Consensus_8cpp_source.html#l00093">Consensus.cpp:93</a></div></div>
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<div class="ttc" id="aduration_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::milliseconds</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_ad8fefe3e8ad583e1ed1bf02094ac3d8f"><div class="ttname"><a href="classbeast_1_1Journal.html#ad8fefe3e8ad583e1ed1bf02094ac3d8f">beast::Journal::warn</a></div><div class="ttdeci">Stream warn() const</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00327">Journal.h:327</a></div></div>
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<div class="ttc" id="astructripple_1_1ConsensusParms_html_a0520be4c7ae7e150218c24cfa09fb2a3"><div class="ttname"><a href="structripple_1_1ConsensusParms.html#a0520be4c7ae7e150218c24cfa09fb2a3">ripple::ConsensusParms::minCONSENSUS_PCT</a></div><div class="ttdeci">std::size_t minCONSENSUS_PCT</div><div class="ttdoc">The percentage threshold and floating point factor above which we can declare consensus.</div><div class="ttdef"><b>Definition:</b> <a href="ConsensusParms_8h_source.html#l00075">ConsensusParms.h:75</a></div></div>
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<div class="ttc" id="astructripple_1_1ConsensusParms_html_a8b3b41a8faceadfb268d0baefaaf64d3"><div class="ttname"><a href="structripple_1_1ConsensusParms.html#a8b3b41a8faceadfb268d0baefaaf64d3">ripple::ConsensusParms::ledgerMIN_CLOSE</a></div><div class="ttdeci">std::chrono::milliseconds ledgerMIN_CLOSE</div><div class="ttdoc">Minimum number of seconds to wait to ensure others have computed the LCL.</div><div class="ttdef"><b>Definition:</b> <a href="ConsensusParms_8h_source.html#l00100">ConsensusParms.h:100</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html"><div class="ttname"><a href="classbeast_1_1Journal.html">beast::Journal</a></div><div class="ttdoc">A generic endpoint for log messages.</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00058">Journal.h:58</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a79cc3b590c118bd551b693bb333fb9d1abafd7322c6e97d25b6299b5d6fe8920b"><div class="ttname"><a href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1abafd7322c6e97d25b6299b5d6fe8920b">ripple::ConsensusState::No</a></div><div class="ttdeci">@ No</div><div class="ttdoc">We do not have consensus.</div></div>
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<div class="ttc" id="anamespaceripple_html_a79cc3b590c118bd551b693bb333fb9d1a6978081a12147518207c7512374c5c80"><div class="ttname"><a href="namespaceripple.html#a79cc3b590c118bd551b693bb333fb9d1a6978081a12147518207c7512374c5c80">ripple::ConsensusState::MovedOn</a></div><div class="ttdeci">@ MovedOn</div><div class="ttdoc">The network has consensus without us.</div></div>
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<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="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
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<div class="ttc" id="astructripple_1_1ConsensusParms_html_a0939202b250b3e1577d24a0c5723aaed"><div class="ttname"><a href="structripple_1_1ConsensusParms.html#a0939202b250b3e1577d24a0c5723aaed">ripple::ConsensusParms::ledgerMIN_CONSENSUS</a></div><div class="ttdeci">std::chrono::milliseconds ledgerMIN_CONSENSUS</div><div class="ttdoc">The number of seconds we wait minimum to ensure participation.</div><div class="ttdef"><b>Definition:</b> <a href="ConsensusParms_8h_source.html#l00088">ConsensusParms.h:88</a></div></div>
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<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#l00033">ConsensusParms.h:33</a></div></div>
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<div class="ttc" id="acount_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration/count.html">std::chrono::milliseconds::count</a></div><div class="ttdeci">T count(T... args)</div></div>
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<div class="ttc" id="aoptional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional< std::chrono::milliseconds ></a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_a556228cb60bcf405c225d3f64b7b01ae"><div class="ttname"><a href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">beast::Journal::debug</a></div><div class="ttdeci">Stream debug() const</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00315">Journal.h:315</a></div></div>
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<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>
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<div class="ttc" id="anamespaceripple_html_a216564c8f7b3d3c62ceb75d04097a8c3"><div class="ttname"><a href="namespaceripple.html#a216564c8f7b3d3c62ceb75d04097a8c3">ripple::shouldCloseLedger</a></div><div class="ttdeci">bool shouldCloseLedger(bool anyTransactions, std::size_t prevProposers, std::size_t proposersClosed, std::size_t proposersValidated, std::chrono::milliseconds prevRoundTime, std::chrono::milliseconds timeSincePrevClose, std::chrono::milliseconds openTime, std::optional< std::chrono::milliseconds > validationDelay, std::chrono::milliseconds idleInterval, ConsensusParms const &parms, beast::Journal j)</div><div class="ttdoc">Determines whether the current ledger should close at this time.</div><div class="ttdef"><b>Definition:</b> <a href="Consensus_8cpp_source.html#l00026">Consensus.cpp:26</a></div></div>
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