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<div class="headertitle"><div class="title">GetAggregatePrice.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="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">/*</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> Copyright (c) 2023 Ripple Labs Inc.</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"></span> </div>
<div class="line"><a id="l00006" 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>
<div class="line"><a id="l00007" 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>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"></span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
<div class="line"><a id="l00012" 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>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a id="l00014" 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>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">*/</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment">//==============================================================================</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="preprocessor">#include &lt;xrpld/app/ledger/LedgerMaster.h&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &lt;xrpld/app/main/Application.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;xrpld/ledger/ReadView.h&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;xrpld/rpc/Context.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;xrpld/rpc/detail/RPCHelpers.h&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include &lt;xrpl/json/json_value.h&gt;</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &lt;xrpl/protocol/ErrorCodes.h&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &lt;xrpl/protocol/jss.h&gt;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &lt;boost/bimap.hpp&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include &lt;boost/bimap/multiset_of.hpp&gt;</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</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="keyword">using namespace </span>boost::bimaps;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">// sorted descending by lastUpdateTime, ascending by AssetPrice</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff"> 37</a></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff">Prices</a> = bimap&lt;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> multiset_of&lt;std::uint32_t, std::greater&lt;std::uint32_t&gt;&gt;,</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> multiset_of&lt;STAmount&gt;&gt;;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2"> 45</a></span><a class="code hl_function" href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2">iteratePriceData</a>(</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_struct" href="structripple_1_1RPC_1_1JsonContext.html">RPC::JsonContext</a>&amp; context,</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;SLE const&gt;</a> <span class="keyword">const</span>&amp; sle,</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/functional/function.html">std::function</a>&lt;<span class="keywordtype">bool</span>(<a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp;)&gt;&amp;&amp; f)</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>{</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">using </span>Meta = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;STObject const&gt;</a>;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> maxHistory = 3;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordtype">bool</span> isNew = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> history = 0;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// `oracle` points to an object that has an `sfPriceDataSeries` field.</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// When this function is called, that is a `PriceOracle` ledger object,</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// but after one iteration of the loop below, it is an `sfNewFields`</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// / `sfFinalFields` object in a `CreatedNode` / `ModifiedNode` object in</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// a transaction&#39;s metadata.</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// `chain` points to an object that has `sfPreviousTxnID` and</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// `sfPreviousTxnLgrSeq` fields. When this function is called,</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// that is the `PriceOracle` ledger object pointed to by `oracle`,</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// but after one iteration of the loop below, then it is a `ModifiedNode`</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// / `CreatedNode` object in a transaction&#39;s metadata.</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>* oracle = sle.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr/get.html">get</a>();</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>* chain = oracle;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// Use to test an unlikely scenario when CreatedNode / ModifiedNode</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// for the Oracle is not found in the inner loop</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>* prevChain = <span class="keyword">nullptr</span>;</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> Meta meta = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">while</span> (<span class="keyword">true</span>)</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="keywordflow">if</span> (prevChain == chain)</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">if</span> (!oracle || f(*oracle) || isNew)</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">return</span>;</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> <span class="keywordflow">if</span> (++history &gt; maxHistory)</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">return</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_class" href="classripple_1_1base__uint.html">uint256</a> prevTx = chain-&gt;<a class="code hl_function" href="classripple_1_1STObject.html#af89b6c7fd94c998549037d0c44a068a1">getFieldH256</a>(sfPreviousTxnID);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> prevSeq = chain-&gt;<a class="code hl_function" href="classripple_1_1STObject.html#a55d1b6946f96a770f3b2195eb5a5a943">getFieldU32</a>(sfPreviousTxnLgrSeq);</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">auto</span> <span class="keyword">const</span> ledger = context.<a class="code hl_variable" href="structripple_1_1RPC_1_1Context.html#a92c98828663b6b80d3eb15850ec6897a">ledgerMaster</a>.<a class="code hl_function" href="classripple_1_1LedgerMaster.html#ae54f482cc23a2fad32a1d841e6b47e74">getLedgerBySeq</a>(prevSeq);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordflow">if</span> (!ledger)</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">return</span>; <span class="comment">// LCOV_EXCL_LINE</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> meta = ledger-&gt;txRead(prevTx).second;</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> prevChain = chain;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; node : meta-&gt;<a class="code hl_function" href="classripple_1_1STObject.html#a0fced814291f20736a0b1b50716ffb48">getFieldArray</a>(sfAffectedNodes))</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> {</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">if</span> (node.getFieldU16(sfLedgerEntryType) != ltORACLE)</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> {</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> chain = &amp;node;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> isNew = node.<a class="code hl_function" href="classripple_1_1STObject.html#aaf5d617701ac3afc4ad6a13862459692">isFieldPresent</a>(sfNewFields);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// if a meta is for the new and this is the first</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// look-up then it&#39;s the meta for the tx that</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="comment">// created the current object; i.e. there is no</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// historical data</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">if</span> (isNew &amp;&amp; history == 1)</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">return</span>;</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> oracle = isNew</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> ? &amp;<span class="keyword">static_cast&lt;</span><a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> const&amp;<span class="keyword">&gt;</span>(node.peekAtField(sfNewFields))</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> : &amp;<span class="keyword">static_cast&lt;</span><a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> const&amp;<span class="keyword">&gt;</span>(</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> node.peekAtField(sfFinalFields));</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">break</span>;</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> }</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> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="comment">// Return avg, sd, data set size</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/tuple.html">std::tuple&lt;STAmount, Number, std::uint16_t&gt;</a></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"><a class="line" href="namespaceripple.html#acf569c3b0dc972624cd823da12096f63"> 121</a></span><a class="code hl_function" href="namespaceripple.html#acf569c3b0dc972624cd823da12096f63">getStats</a>(</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> Prices::right_const_iterator <span class="keyword">const</span>&amp; begin,</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> Prices::right_const_iterator <span class="keyword">const</span>&amp; end)</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span>{</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <a class="code hl_class" href="classripple_1_1STAmount.html">STAmount</a> avg{<a class="code hl_function" href="namespaceripple.html#a9e3dc59bb58c33f14b3c0d3070b94d98">noIssue</a>(), 0, 0};</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <a class="code hl_class" href="classripple_1_1Number.html">Number</a> sd{0};</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> <span class="keyword">const</span> size = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(begin, end);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> avg = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/accumulate.html">std::accumulate</a>(</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> begin, end, avg, [&amp;](<a class="code hl_class" href="classripple_1_1STAmount.html">STAmount</a> <span class="keyword">const</span>&amp; acc, <span class="keyword">auto</span> <span class="keyword">const</span>&amp; it) {</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">return</span> acc + it.first;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> });</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> avg = <a class="code hl_function" href="namespaceripple.html#a0ad557cc32ca87dcea19af8e30c63c6a">divide</a>(avg, <a class="code hl_class" href="classripple_1_1STAmount.html">STAmount</a>{<a class="code hl_function" href="namespaceripple.html#a9e3dc59bb58c33f14b3c0d3070b94d98">noIssue</a>(), size, 0}, <a class="code hl_function" href="namespaceripple.html#a9e3dc59bb58c33f14b3c0d3070b94d98">noIssue</a>());</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">if</span> (size &gt; 1)</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> sd = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/accumulate.html">std::accumulate</a>(</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> begin, end, sd, [&amp;](<a class="code hl_class" href="classripple_1_1Number.html">Number</a> <span class="keyword">const</span>&amp; acc, <span class="keyword">auto</span> <span class="keyword">const</span>&amp; it) {</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">return</span> acc + (it.first - avg) * (it.first - avg);</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> });</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> sd = <a class="code hl_function" href="namespaceripple.html#aecb9ae1add070266b1be59ff570ec713">root2</a>(sd / (size - 1));</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> <span class="keywordflow">return</span> {avg, sd, size};</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> </div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span><a class="code hl_class" href="classJson_1_1Value.html">Json::Value</a></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"><a class="line" href="namespaceripple.html#a215746d088eb1fa077dffc993a072dc0"> 153</a></span><a class="code hl_function" href="namespaceripple.html#a215746d088eb1fa077dffc993a072dc0">doGetAggregatePrice</a>(<a class="code hl_struct" href="structripple_1_1RPC_1_1JsonContext.html">RPC::JsonContext</a>&amp; context)</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span>{</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <a class="code hl_class" href="classJson_1_1Value.html">Json::Value</a> result;</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">auto</span> <span class="keyword">const</span>&amp; params(context.<a class="code hl_variable" href="structripple_1_1RPC_1_1JsonContext.html#a036b2c14552fbca49011c3d0e78017fa">params</a>);</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">constexpr</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint16_t</a> maxOracles = 200;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordflow">if</span> (!params.isMember(jss::oracles))</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">RPC::missing_field_error</a>(jss::oracles);</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">if</span> (!params[jss::oracles].isArray() || params[jss::oracles].size() == 0 ||</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> params[jss::oracles].size() &gt; maxOracles)</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> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">rpcORACLE_MALFORMED</a>, result);</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">return</span> result;</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> </div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">if</span> (!params.isMember(jss::base_asset))</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">RPC::missing_field_error</a>(jss::base_asset);</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordflow">if</span> (!params.isMember(jss::quote_asset))</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">RPC::missing_field_error</a>(jss::quote_asset);</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="comment">// Lambda to validate uint type</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// support positive int, uint, and a number represented as a string</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keyword">auto</span> validUInt = [](<a class="code hl_class" href="classJson_1_1Value.html">Json::Value</a> <span class="keyword">const</span>&amp; params,</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <a class="code hl_class" href="classJson_1_1StaticString.html">Json::StaticString</a> <span class="keyword">const</span>&amp; field) {</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">auto</span> <span class="keyword">const</span>&amp; jv = params[field];</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> v;</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">return</span> jv.isUInt() || (jv.isInt() &amp;&amp; jv.asInt() &gt;= 0) ||</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> (jv.isString() &amp;&amp; <a class="code hl_function" href="namespacebeast.html#aeb241ed2f4422ea57283956ca58c5d42">beast::lexicalCastChecked</a>(v, jv.asString()));</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> </div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// Lambda to get `trim` and `time_threshold` fields. If the field</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="comment">// is not included in the input then a default value is returned.</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keyword">auto</span> getField = [&amp;params, &amp;validUInt](</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <a class="code hl_class" href="classJson_1_1StaticString.html">Json::StaticString</a> <span class="keyword">const</span>&amp; field,</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> def =</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> 0) -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant&lt;std::uint32_t, error_code_i&gt;</a> {</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">if</span> (params.<a class="code hl_function" href="classJson_1_1Value.html#abfa90c81f6aee7877bd5fb4c8445994f">isMember</a>(field))</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> {</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">if</span> (!validUInt(params, field))</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</a>;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">return</span> params[field].<a class="code hl_function" href="classJson_1_1Value.html#a74b305583ec3aacf4f9dd06e799dc265">asUInt</a>();</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">return</span> def;</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</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> <span class="comment">// Lambda to get `base_asset` and `quote_asset`. The values have</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="comment">// to conform to the Currency type.</span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">auto</span> getCurrency =</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> [&amp;params](<a class="code hl_class" href="classripple_1_1SField.html">SField</a> <span class="keyword">const</span>&amp; sField, <a class="code hl_class" href="classJson_1_1StaticString.html">Json::StaticString</a> <span class="keyword">const</span>&amp; field)</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> -&gt; <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant&lt;Json::Value, error_code_i&gt;</a> {</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">try</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> {</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordflow">if</span> (params[field].asString().empty())</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</a>;</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <a class="code hl_function" href="namespaceripple.html#a2f6ecb5c0671c8eae429821a6456b704">currencyFromJson</a>(sField, params[field]);</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">return</span> params[field];</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> }</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordflow">catch</span> (...)</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> {</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</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> </div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">auto</span> <span class="keyword">const</span> trim = getField(jss::trim);</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordflow">if</span> (std::holds_alternative&lt;error_code_i&gt;(trim))</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> {</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(std::get&lt;error_code_i&gt;(trim), result);</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> }</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordflow">if</span> (params.<a class="code hl_function" href="classJson_1_1Value.html#abfa90c81f6aee7877bd5fb4c8445994f">isMember</a>(jss::trim) &amp;&amp;</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> (std::get&lt;std::uint32_t&gt;(trim) == 0 ||</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> std::get&lt;std::uint32_t&gt;(trim) &gt; <a class="code hl_variable" href="namespaceripple.html#a657f5253021183fbcafec5bbc782f1b4">maxTrim</a>))</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> {</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</a>, result);</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">return</span> result;</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> </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">auto</span> <span class="keyword">const</span> timeThreshold = getField(jss::time_threshold, 0);</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">if</span> (std::holds_alternative&lt;error_code_i&gt;(timeThreshold))</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> {</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(std::get&lt;error_code_i&gt;(timeThreshold), result);</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">return</span> result;</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> </div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keyword">auto</span> <span class="keyword">const</span> baseAsset = getCurrency(sfBaseAsset, jss::base_asset);</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordflow">if</span> (std::holds_alternative&lt;error_code_i&gt;(baseAsset))</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> {</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(std::get&lt;error_code_i&gt;(baseAsset), result);</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> }</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keyword">auto</span> <span class="keyword">const</span> quoteAsset = getCurrency(sfQuoteAsset, jss::quote_asset);</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">if</span> (std::holds_alternative&lt;error_code_i&gt;(quoteAsset))</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> {</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(std::get&lt;error_code_i&gt;(quoteAsset), result);</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> }</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// Collect the dataset into bimap keyed by lastUpdateTime and</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="comment">// STAmount (Number is int64 and price is uint64)</span></div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <a class="code hl_typedef" href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff">Prices</a> prices;</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> <span class="keyword">const</span>&amp; oracle : params[jss::oracles])</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> {</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keywordflow">if</span> (!oracle.isMember(jss::oracle_document_id) ||</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> !oracle.isMember(jss::account))</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> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">rpcORACLE_MALFORMED</a>, result);</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keywordflow">return</span> result;</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">auto</span> <span class="keyword">const</span> documentID = validUInt(oracle, jss::oracle_document_id)</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> ? <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/utility/optional/make_optional.html">std::make_optional</a>(oracle[jss::oracle_document_id].asUInt())</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> : std::nullopt;</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="keyword">auto</span> <span class="keyword">const</span> account =</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> parseBase58&lt;AccountID&gt;(oracle[jss::account].asString());</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">if</span> (!account || account-&gt;<a class="code hl_function" href="classripple_1_1base__uint.html#a6fd7dba1ad932f4c1246c9a090c145e5">isZero</a>() || !documentID)</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> {</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">rpcINVALID_PARAMS</a>, result);</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> }</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> </div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;ReadView const&gt;</a> ledger;</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> result = <a class="code hl_function" href="namespaceripple_1_1RPC.html#aaebfaaee35308269fab499f4e203a8c9">RPC::lookupLedger</a>(ledger, context);</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="keywordflow">if</span> (!ledger)</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keywordflow">return</span> result; <span class="comment">// LCOV_EXCL_LINE</span></div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> </div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">auto</span> <span class="keyword">const</span> sle = ledger-&gt;read(<a class="code hl_function" href="namespaceripple_1_1keylet.html#a0c8501b7162b24e030168fb13b6d774a">keylet::oracle</a>(*account, *documentID));</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <a class="code hl_function" href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2">iteratePriceData</a>(context, sle, [&amp;](<a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; node) {</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="keyword">auto</span> <span class="keyword">const</span>&amp; series = node.<a class="code hl_function" href="classripple_1_1STObject.html#a0fced814291f20736a0b1b50716ffb48">getFieldArray</a>(sfPriceDataSeries);</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// find the token pair entry with the price</span></div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> iter = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a>(</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> series.begin(),</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> series.end(),</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> [&amp;](<a class="code hl_class" href="classripple_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; o) -&gt; <span class="keywordtype">bool</span> {</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> return o.getFieldCurrency(sfBaseAsset).getText() ==</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> std::get&lt;Json::Value&gt;(baseAsset) &amp;&amp;</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> o.getFieldCurrency(sfQuoteAsset).getText() ==</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> std::get&lt;Json::Value&gt;(quoteAsset) &amp;&amp;</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> o.isFieldPresent(sfAssetPrice);</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> });</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> iter != series.end())</div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> {</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> auto const price = iter-&gt;getFieldU64(sfAssetPrice);</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> auto const scale = iter-&gt;isFieldPresent(sfScale)</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> ? -static_cast&lt;int&gt;(iter-&gt;getFieldU8(sfScale))</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> : 0;</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> prices.insert(Prices::value_type(</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> node.getFieldU32(sfLastUpdateTime),</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> STAmount{noIssue(), price, scale}));</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> }</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> });</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> }</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> </div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">if</span> (prices.empty())</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> {</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5">rpcOBJECT_NOT_FOUND</a>, result);</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> }</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="comment">// erase outdated data</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="comment">// sorted in descending, therefore begin is the latest, end is the oldest</span></div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <span class="keyword">auto</span> <span class="keyword">const</span> latestTime = prices.left.begin()-&gt;first;</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> <span class="keyword">const</span> threshold = std::get&lt;std::uint32_t&gt;(timeThreshold))</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> <span class="comment">// threshold defines an acceptable range {max,min} of lastUpdateTime as</span></div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="comment">// {latestTime, latestTime - threshold}, the prices with lastUpdateTime</span></div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="comment">// greater than (latestTime - threshold) are erased.</span></div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="keyword">auto</span> <span class="keyword">const</span> oldestTime = prices.left.rbegin()-&gt;first;</div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> <span class="keyword">auto</span> <span class="keyword">const</span> upperBound =</div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> latestTime &gt; threshold ? (latestTime - threshold) : oldestTime;</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <span class="keywordflow">if</span> (upperBound &gt; oldestTime)</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> prices.left.erase(</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> prices.left.upper_bound(upperBound), prices.left.end());</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> <span class="comment">// At least one element should remain since upperBound is either</span></div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <span class="comment">// equal to oldestTime or is less than latestTime, in which case</span></div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="comment">// the data is deleted between the oldestTime and upperBound.</span></div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordflow">if</span> (prices.empty())</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> {</div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// LCOV_EXCL_START</span></div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <a class="code hl_function" href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">RPC::inject_error</a>(<a class="code hl_enumvalue" href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a839833d48b635d8df6a9176274ae922f">rpcINTERNAL</a>, result);</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="comment">// LCOV_EXCL_STOP</span></div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> }</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> }</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> result[jss::time] = latestTime;</div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> </div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="comment">// calculate stats</span></div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> <span class="keyword">auto</span> <span class="keyword">const</span> [avg, sd, <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>] =</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> <a class="code hl_function" href="namespaceripple.html#acf569c3b0dc972624cd823da12096f63">getStats</a>(prices.right.begin(), prices.right.end());</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> result[jss::entire_set][jss::mean] = avg.getText();</div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> result[jss::entire_set][jss::size] = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>;</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> result[jss::entire_set][jss::standard_deviation] = <a class="code hl_function" href="namespaceripple.html#ac124fe6744b7fe887dec949b56b16d50">to_string</a>(sd);</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> </div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> <span class="keyword">auto</span> itAdvance = [&amp;](<span class="keyword">auto</span> it, <span class="keywordtype">int</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/distance.html">distance</a>) {</div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/advance.html">std::advance</a>(it, distance);</div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <span class="keywordflow">return</span> it;</div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> };</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> </div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keyword">auto</span> <span class="keyword">const</span> median = [&amp;prices, &amp;itAdvance, &amp;size_ = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>]() {</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="keyword">auto</span> <span class="keyword">const</span> middle = size_ / 2;</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <span class="keywordflow">if</span> ((size_ % 2) == 0)</div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> {</div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> <span class="keyword">static</span> STAmount two{<a class="code hl_function" href="namespaceripple.html#a9e3dc59bb58c33f14b3c0d3070b94d98">noIssue</a>(), 2, 0};</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <span class="keyword">auto</span> it = itAdvance(prices.right.begin(), middle - 1);</div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="keyword">auto</span> <span class="keyword">const</span>&amp; a1 = it-&gt;first;</div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="keyword">auto</span> <span class="keyword">const</span>&amp; a2 = (++it)-&gt;first;</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceripple.html#a0ad557cc32ca87dcea19af8e30c63c6a">divide</a>(a1 + a2, two, <a class="code hl_function" href="namespaceripple.html#a9e3dc59bb58c33f14b3c0d3070b94d98">noIssue</a>());</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> }</div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordflow">return</span> itAdvance(prices.right.begin(), middle)-&gt;first;</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> }();</div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> result[jss::median] = median.getText();</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> <span class="keywordflow">if</span> (std::get&lt;std::uint32_t&gt;(trim) != 0)</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="keyword">auto</span> <span class="keyword">const</span> trimCount =</div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> prices.size() * std::get&lt;std::uint32_t&gt;(trim) / 100;</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> <span class="keyword">auto</span> <span class="keyword">const</span> [avg, sd, <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>] = <a class="code hl_function" href="namespaceripple.html#acf569c3b0dc972624cd823da12096f63">getStats</a>(</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> itAdvance(prices.right.begin(), trimCount),</div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> itAdvance(prices.right.end(), -trimCount));</div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> result[jss::trimmed_set][jss::mean] = avg.getText();</div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> result[jss::trimmed_set][jss::size] = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/size.html">size</a>;</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> result[jss::trimmed_set][jss::standard_deviation] = <a class="code hl_function" href="namespaceripple.html#ac124fe6744b7fe887dec949b56b16d50">to_string</a>(sd);</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> }</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> </div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span>}</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>} <span class="comment">// namespace ripple</span></div>
<div class="ttc" id="aaccumulate_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/accumulate.html">std::accumulate</a></div><div class="ttdeci">T accumulate(T... args)</div></div>
<div class="ttc" id="aadvance_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/advance.html">std::advance</a></div><div class="ttdeci">T advance(T... args)</div></div>
<div class="ttc" id="aclassJson_1_1StaticString_html"><div class="ttname"><a href="classJson_1_1StaticString.html">Json::StaticString</a></div><div class="ttdoc">Lightweight wrapper to tag static string.</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8h_source.html#l00062">json_value.h:63</a></div></div>
<div class="ttc" id="aclassJson_1_1Value_html"><div class="ttname"><a href="classJson_1_1Value.html">Json::Value</a></div><div class="ttdoc">Represents a JSON value.</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8h_source.html#l00148">json_value.h:149</a></div></div>
<div class="ttc" id="aclassJson_1_1Value_html_a74b305583ec3aacf4f9dd06e799dc265"><div class="ttname"><a href="classJson_1_1Value.html#a74b305583ec3aacf4f9dd06e799dc265">Json::Value::asUInt</a></div><div class="ttdeci">UInt asUInt() const</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8cpp_source.html#l00558">json_value.cpp:558</a></div></div>
<div class="ttc" id="aclassJson_1_1Value_html_abfa90c81f6aee7877bd5fb4c8445994f"><div class="ttname"><a href="classJson_1_1Value.html#abfa90c81f6aee7877bd5fb4c8445994f">Json::Value::isMember</a></div><div class="ttdeci">bool isMember(char const *key) const</div><div class="ttdoc">Return true if the object has a member named key.</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8cpp_source.html#l00962">json_value.cpp:962</a></div></div>
<div class="ttc" id="aclassripple_1_1LedgerMaster_html_ae54f482cc23a2fad32a1d841e6b47e74"><div class="ttname"><a href="classripple_1_1LedgerMaster.html#ae54f482cc23a2fad32a1d841e6b47e74">ripple::LedgerMaster::getLedgerBySeq</a></div><div class="ttdeci">std::shared_ptr&lt; Ledger const &gt; getLedgerBySeq(std::uint32_t index)</div><div class="ttdef"><b>Definition:</b> <a href="LedgerMaster_8cpp_source.html#l01706">LedgerMaster.cpp:1706</a></div></div>
<div class="ttc" id="aclassripple_1_1Number_html"><div class="ttname"><a href="classripple_1_1Number.html">ripple::Number</a></div><div class="ttdef"><b>Definition:</b> <a href="Number_8h_source.html#l00035">Number.h:36</a></div></div>
<div class="ttc" id="aclassripple_1_1SField_html"><div class="ttname"><a href="classripple_1_1SField.html">ripple::SField</a></div><div class="ttdoc">Identifies fields.</div><div class="ttdef"><b>Definition:</b> <a href="SField_8h_source.html#l00142">SField.h:143</a></div></div>
<div class="ttc" id="aclassripple_1_1STAmount_html"><div class="ttname"><a href="classripple_1_1STAmount.html">ripple::STAmount</a></div><div class="ttdef"><b>Definition:</b> <a href="STAmount_8h_source.html#l00049">STAmount.h:50</a></div></div>
<div class="ttc" id="aclassripple_1_1STObject_html"><div class="ttname"><a href="classripple_1_1STObject.html">ripple::STObject</a></div><div class="ttdef"><b>Definition:</b> <a href="STObject_8h_source.html#l00056">STObject.h:57</a></div></div>
<div class="ttc" id="aclassripple_1_1STObject_html_a0fced814291f20736a0b1b50716ffb48"><div class="ttname"><a href="classripple_1_1STObject.html#a0fced814291f20736a0b1b50716ffb48">ripple::STObject::getFieldArray</a></div><div class="ttdeci">STArray const &amp; getFieldArray(SField const &amp;field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00686">STObject.cpp:686</a></div></div>
<div class="ttc" id="aclassripple_1_1STObject_html_a55d1b6946f96a770f3b2195eb5a5a943"><div class="ttname"><a href="classripple_1_1STObject.html#a55d1b6946f96a770f3b2195eb5a5a943">ripple::STObject::getFieldU32</a></div><div class="ttdeci">std::uint32_t getFieldU32(SField const &amp;field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00615">STObject.cpp:615</a></div></div>
<div class="ttc" id="aclassripple_1_1STObject_html_aaf5d617701ac3afc4ad6a13862459692"><div class="ttname"><a href="classripple_1_1STObject.html#aaf5d617701ac3afc4ad6a13862459692">ripple::STObject::isFieldPresent</a></div><div class="ttdeci">bool isFieldPresent(SField const &amp;field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00484">STObject.cpp:484</a></div></div>
<div class="ttc" id="aclassripple_1_1STObject_html_af89b6c7fd94c998549037d0c44a068a1"><div class="ttname"><a href="classripple_1_1STObject.html#af89b6c7fd94c998549037d0c44a068a1">ripple::STObject::getFieldH256</a></div><div class="ttdeci">uint256 getFieldH256(SField const &amp;field) const</div><div class="ttdef"><b>Definition:</b> <a href="STObject_8cpp_source.html#l00645">STObject.cpp:645</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html"><div class="ttname"><a href="classripple_1_1base__uint.html">ripple::base_uint&lt; 256 &gt;</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html_a6fd7dba1ad932f4c1246c9a090c145e5"><div class="ttname"><a href="classripple_1_1base__uint.html#a6fd7dba1ad932f4c1246c9a090c145e5">ripple::base_uint::isZero</a></div><div class="ttdeci">bool isZero() const</div><div class="ttdef"><b>Definition:</b> <a href="base__uint_8h_source.html#l00540">base_uint.h:540</a></div></div>
<div class="ttc" id="adistance_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a></div><div class="ttdeci">T distance(T... args)</div></div>
<div class="ttc" id="afind_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/find.html">std::find_if</a></div><div class="ttdeci">T find_if(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="aget_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr/get.html">std::shared_ptr::get</a></div><div class="ttdeci">T get(T... args)</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="amake_optional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional/make_optional.html">std::make_optional</a></div><div class="ttdeci">T make_optional(T... args)</div></div>
<div class="ttc" id="anamespacebeast_html_aeb241ed2f4422ea57283956ca58c5d42"><div class="ttname"><a href="namespacebeast.html#aeb241ed2f4422ea57283956ca58c5d42">beast::lexicalCastChecked</a></div><div class="ttdeci">bool lexicalCastChecked(Out &amp;out, In in)</div><div class="ttdoc">Intelligently convert from one type to another.</div><div class="ttdef"><b>Definition:</b> <a href="LexicalCast_8h_source.html#l00200">LexicalCast.h:200</a></div></div>
<div class="ttc" id="anamespaceripple_1_1RPC_html_a577bde9602a28f59e445c496f92a1ccf"><div class="ttname"><a href="namespaceripple_1_1RPC.html#a577bde9602a28f59e445c496f92a1ccf">ripple::RPC::inject_error</a></div><div class="ttdeci">void inject_error(error_code_i code, JsonValue &amp;json)</div><div class="ttdoc">Add or update the json update to reflect the error code.</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00226">ErrorCodes.h:226</a></div></div>
<div class="ttc" id="anamespaceripple_1_1RPC_html_aaebfaaee35308269fab499f4e203a8c9"><div class="ttname"><a href="namespaceripple_1_1RPC.html#aaebfaaee35308269fab499f4e203a8c9">ripple::RPC::lookupLedger</a></div><div class="ttdeci">Status lookupLedger(std::shared_ptr&lt; ReadView const &gt; &amp;ledger, JsonContext &amp;context, Json::Value &amp;result)</div><div class="ttdoc">Look up a ledger from a request and fill a Json::Result with the data representing a ledger.</div><div class="ttdef"><b>Definition:</b> <a href="RPCHelpers_8cpp_source.html#l00622">RPCHelpers.cpp:622</a></div></div>
<div class="ttc" id="anamespaceripple_1_1RPC_html_aec2e1163b39a450d3917af9dd15b0f06"><div class="ttname"><a href="namespaceripple_1_1RPC.html#aec2e1163b39a450d3917af9dd15b0f06">ripple::RPC::missing_field_error</a></div><div class="ttdeci">Json::Value missing_field_error(std::string const &amp;name)</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00276">ErrorCodes.h:276</a></div></div>
<div class="ttc" id="anamespaceripple_1_1keylet_html_a0c8501b7162b24e030168fb13b6d774a"><div class="ttname"><a href="namespaceripple_1_1keylet.html#a0c8501b7162b24e030168fb13b6d774a">ripple::keylet::oracle</a></div><div class="ttdeci">Keylet oracle(AccountID const &amp;account, std::uint32_t const &amp;documentID) noexcept</div><div class="ttdef"><b>Definition:</b> <a href="Indexes_8cpp_source.html#l00520">Indexes.cpp:520</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_a0ad557cc32ca87dcea19af8e30c63c6a"><div class="ttname"><a href="namespaceripple.html#a0ad557cc32ca87dcea19af8e30c63c6a">ripple::divide</a></div><div class="ttdeci">STAmount divide(STAmount const &amp;amount, Rate const &amp;rate)</div><div class="ttdef"><b>Definition:</b> <a href="Rate2_8cpp_source.html#l00093">Rate2.cpp:93</a></div></div>
<div class="ttc" id="anamespaceripple_html_a215746d088eb1fa077dffc993a072dc0"><div class="ttname"><a href="namespaceripple.html#a215746d088eb1fa077dffc993a072dc0">ripple::doGetAggregatePrice</a></div><div class="ttdeci">Json::Value doGetAggregatePrice(RPC::JsonContext &amp;context)</div><div class="ttdoc">oracles: array of {account, oracle_document_id} base_asset: is the asset to be priced quote_asset: is...</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00153">GetAggregatePrice.cpp:153</a></div></div>
<div class="ttc" id="anamespaceripple_html_a2f6ecb5c0671c8eae429821a6456b704"><div class="ttname"><a href="namespaceripple.html#a2f6ecb5c0671c8eae429821a6456b704">ripple::currencyFromJson</a></div><div class="ttdeci">STCurrency currencyFromJson(SField const &amp;name, Json::Value const &amp;v)</div><div class="ttdef"><b>Definition:</b> <a href="STCurrency_8cpp_source.html#l00106">STCurrency.cpp:106</a></div></div>
<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a1a87d932a3aa4d8c546fa831ce6f3804">ripple::rpcORACLE_MALFORMED</a></div><div class="ttdeci">@ rpcORACLE_MALFORMED</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00149">ErrorCodes.h:149</a></div></div>
<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a6b62321701dd9bdac951e62cf9a478a5">ripple::rpcOBJECT_NOT_FOUND</a></div><div class="ttdeci">@ rpcOBJECT_NOT_FOUND</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00143">ErrorCodes.h:143</a></div></div>
<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a82ddebc5ec7a37ff38892487277bf9c4">ripple::rpcINVALID_PARAMS</a></div><div class="ttdeci">@ rpcINVALID_PARAMS</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00084">ErrorCodes.h:84</a></div></div>
<div class="ttc" id="anamespaceripple_html_a32d6d3ce1a48272b677d2c88b1d30932a839833d48b635d8df6a9176274ae922f"><div class="ttname"><a href="namespaceripple.html#a32d6d3ce1a48272b677d2c88b1d30932a839833d48b635d8df6a9176274ae922f">ripple::rpcINTERNAL</a></div><div class="ttdeci">@ rpcINTERNAL</div><div class="ttdef"><b>Definition:</b> <a href="ErrorCodes_8h_source.html#l00130">ErrorCodes.h:130</a></div></div>
<div class="ttc" id="anamespaceripple_html_a657f5253021183fbcafec5bbc782f1b4"><div class="ttname"><a href="namespaceripple.html#a657f5253021183fbcafec5bbc782f1b4">ripple::maxTrim</a></div><div class="ttdeci">std::size_t constexpr maxTrim</div><div class="ttdoc">The maximum percentage of outliers to trim.</div><div class="ttdef"><b>Definition:</b> <a href="Protocol_8h_source.html#l00166">Protocol.h:166</a></div></div>
<div class="ttc" id="anamespaceripple_html_a9e3dc59bb58c33f14b3c0d3070b94d98"><div class="ttname"><a href="namespaceripple.html#a9e3dc59bb58c33f14b3c0d3070b94d98">ripple::noIssue</a></div><div class="ttdeci">Issue const &amp; noIssue()</div><div class="ttdoc">Returns an asset specifier that represents no account and currency.</div><div class="ttdef"><b>Definition:</b> <a href="Issue_8h_source.html#l00123">Issue.h:123</a></div></div>
<div class="ttc" id="anamespaceripple_html_aa61af01715581f232da60424ac48f8ff"><div class="ttname"><a href="namespaceripple.html#aa61af01715581f232da60424ac48f8ff">ripple::Prices</a></div><div class="ttdeci">bimap&lt; multiset_of&lt; std::uint32_t, std::greater&lt; std::uint32_t &gt; &gt;, multiset_of&lt; STAmount &gt; &gt; Prices</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00037">GetAggregatePrice.cpp:39</a></div></div>
<div class="ttc" id="anamespaceripple_html_aaab2288e59025a4b0193e0d45973cec2"><div class="ttname"><a href="namespaceripple.html#aaab2288e59025a4b0193e0d45973cec2">ripple::iteratePriceData</a></div><div class="ttdeci">static void iteratePriceData(RPC::JsonContext &amp;context, std::shared_ptr&lt; SLE const &gt; const &amp;sle, std::function&lt; bool(STObject const &amp;)&gt; &amp;&amp;f)</div><div class="ttdoc">Calls callback &quot;f&quot; on the ledger-object sle and up to three previous metadata objects.</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00045">GetAggregatePrice.cpp:45</a></div></div>
<div class="ttc" id="anamespaceripple_html_ac124fe6744b7fe887dec949b56b16d50"><div class="ttname"><a href="namespaceripple.html#ac124fe6744b7fe887dec949b56b16d50">ripple::to_string</a></div><div class="ttdeci">std::string to_string(base_uint&lt; Bits, Tag &gt; const &amp;a)</div><div class="ttdef"><b>Definition:</b> <a href="base__uint_8h_source.html#l00630">base_uint.h:630</a></div></div>
<div class="ttc" id="anamespaceripple_html_acf569c3b0dc972624cd823da12096f63"><div class="ttname"><a href="namespaceripple.html#acf569c3b0dc972624cd823da12096f63">ripple::getStats</a></div><div class="ttdeci">static std::tuple&lt; STAmount, Number, std::uint16_t &gt; getStats(Prices::right_const_iterator const &amp;begin, Prices::right_const_iterator const &amp;end)</div><div class="ttdef"><b>Definition:</b> <a href="GetAggregatePrice_8cpp_source.html#l00121">GetAggregatePrice.cpp:121</a></div></div>
<div class="ttc" id="anamespaceripple_html_aecb9ae1add070266b1be59ff570ec713"><div class="ttname"><a href="namespaceripple.html#aecb9ae1add070266b1be59ff570ec713">ripple::root2</a></div><div class="ttdeci">Number root2(Number f)</div><div class="ttdef"><b>Definition:</b> <a href="Number_8cpp_source.html#l00701">Number.cpp:701</a></div></div>
<div class="ttc" id="ashared_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a></div></div>
<div class="ttc" id="asize_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/size.html">std::size</a></div><div class="ttdeci">T size(T... args)</div></div>
<div class="ttc" id="astructripple_1_1RPC_1_1Context_html_a92c98828663b6b80d3eb15850ec6897a"><div class="ttname"><a href="structripple_1_1RPC_1_1Context.html#a92c98828663b6b80d3eb15850ec6897a">ripple::RPC::Context::ledgerMaster</a></div><div class="ttdeci">LedgerMaster &amp; ledgerMaster</div><div class="ttdef"><b>Definition:</b> <a href="Context_8h_source.html#l00044">Context.h:44</a></div></div>
<div class="ttc" id="astructripple_1_1RPC_1_1JsonContext_html"><div class="ttname"><a href="structripple_1_1RPC_1_1JsonContext.html">ripple::RPC::JsonContext</a></div><div class="ttdef"><b>Definition:</b> <a href="Context_8h_source.html#l00052">Context.h:53</a></div></div>
<div class="ttc" id="astructripple_1_1RPC_1_1JsonContext_html_a036b2c14552fbca49011c3d0e78017fa"><div class="ttname"><a href="structripple_1_1RPC_1_1JsonContext.html#a036b2c14552fbca49011c3d0e78017fa">ripple::RPC::JsonContext::params</a></div><div class="ttdeci">Json::Value params</div><div class="ttdef"><b>Definition:</b> <a href="Context_8h_source.html#l00063">Context.h:63</a></div></div>
<div class="ttc" id="atuple_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/tuple.html">std::tuple</a></div></div>
<div class="ttc" id="avariant_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/variant.html">std::variant</a></div></div>
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