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<li class="navelem"><a class="el" href="dir_a62226f9e3a6c7c5a3be455e2f87ae01.html">xrpld</a></li><li class="navelem"><a class="el" href="dir_c69db3203fa08a9ff994909ba6ee9783.html">app</a></li><li class="navelem"><a class="el" href="dir_a6d14a898e5042b88feceb06bece5732.html">paths</a></li> </ul>
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<div class="headertitle"><div class="title">RippleLineCache.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) 2012, 2013 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/paths/RippleLineCache.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/paths/TrustLine.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="foldopen" id="foldopen00025" data-start="{" data-end="}">
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="classripple_1_1RippleLineCache.html#aad6e273cadc469d05044fb7a9c33609e"> 25</a></span><a class="code hl_function" href="classripple_1_1RippleLineCache.html#aad6e273cadc469d05044fb7a9c33609e">RippleLineCache::RippleLineCache</a>(</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</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> <span class="keyword">const</span>&amp; ledger,</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <a class="code hl_class" href="classbeast_1_1Journal.html">beast::Journal</a> j)</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> : ledger_(ledger), journal_(j)</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> JLOG(<a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a14c710b6de867041ee531fc2d410554d">journal_</a>.<a class="code hl_function" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) &lt;&lt; <span class="stringliteral">&quot;created for ledger &quot;</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a1e7f0d6b1e32e54310b4c33df40d90cd">ledger_</a>-&gt;info().seq;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span>}</div>
</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="foldopen" id="foldopen00033" data-start="{" data-end="}">
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="classripple_1_1RippleLineCache.html#a7729c4eee8aa67b50cba5a4789112744"> 33</a></span><a class="code hl_function" href="classripple_1_1RippleLineCache.html#a7729c4eee8aa67b50cba5a4789112744">RippleLineCache::~RippleLineCache</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> JLOG(<a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a14c710b6de867041ee531fc2d410554d">journal_</a>.<a class="code hl_function" href="classbeast_1_1Journal.html#a556228cb60bcf405c225d3f64b7b01ae">debug</a>()) &lt;&lt; <span class="stringliteral">&quot;destroyed for ledger &quot;</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a1e7f0d6b1e32e54310b4c33df40d90cd">ledger_</a>-&gt;info().seq</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> &lt;&lt; <span class="stringliteral">&quot; with &quot;</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">lines_</a>.size() &lt;&lt; <span class="stringliteral">&quot; accounts and &quot;</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a575f324d2b34dbff7feeb89aba03f4f5">totalLineCount_</a> &lt;&lt; <span class="stringliteral">&quot; distinct trust lines.&quot;</span>;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span>}</div>
</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;std::vector&lt;PathFindTrustLine&gt;</a>&gt;</div>
<div class="foldopen" id="foldopen00041" data-start="{" data-end="}">
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="classripple_1_1RippleLineCache.html#a95cbe7f07b7d562e453564118b665bf8"> 41</a></span><a class="code hl_function" href="classripple_1_1RippleLineCache.html#a95cbe7f07b7d562e453564118b665bf8">RippleLineCache::getRippleLines</a>(</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <a class="code hl_class" href="classripple_1_1base__uint.html">AccountID</a> <span class="keyword">const</span>&amp; accountID,</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <a class="code hl_enumeration" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568">LineDirection</a> direction)</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span>{</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">auto</span> <span class="keyword">const</span> hash = <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a792a083533b510d376b6677e422680d8">hasher_</a>(accountID);</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_struct" href="structripple_1_1RippleLineCache_1_1AccountKey.html">AccountKey</a> key(accountID, direction, hash);</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <a class="code hl_struct" href="structripple_1_1RippleLineCache_1_1AccountKey.html">AccountKey</a> otherkey(</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> accountID,</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> direction == <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a> ? <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568ad48f944ac6c78b97d544f98b89b506ca">LineDirection::incoming</a></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> : <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a>,</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> hash);</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> sl(<a class="code hl_variable" href="classripple_1_1RippleLineCache.html#aab534a5bd8604a1010f3bf7f44f1341d">mLock</a>);</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="keyword">auto</span> [it, inserted] = [&amp;]() {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> otheriter = <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">lines_</a>.find(otherkey); otheriter != <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">lines_</a>.end())</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> {</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// The whole point of using the direction flag is to reduce the</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// number of trust line objects held in memory. Ensure that there is</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="comment">// only a single set of trustlines in the cache per account.</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">auto</span> <span class="keyword">const</span> size = otheriter-&gt;second ? otheriter-&gt;second-&gt;size() : 0;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> JLOG(<a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a14c710b6de867041ee531fc2d410554d">journal_</a>.<a class="code hl_function" href="classbeast_1_1Journal.html#a87d6bd59020d94110027dcab3d9e3357">info</a>())</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> &lt;&lt; <span class="stringliteral">&quot;Request for &quot;</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> &lt;&lt; (direction == <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a> ? <span class="stringliteral">&quot;outgoing&quot;</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> : <span class="stringliteral">&quot;incoming&quot;</span>)</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> &lt;&lt; <span class="stringliteral">&quot; trust lines for account &quot;</span> &lt;&lt; accountID &lt;&lt; <span class="stringliteral">&quot; found &quot;</span> &lt;&lt; size</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> &lt;&lt; (direction == <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a> ? <span class="stringliteral">&quot; incoming&quot;</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> : <span class="stringliteral">&quot; outgoing&quot;</span>)</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> &lt;&lt; <span class="stringliteral">&quot; trust lines. &quot;</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> &lt;&lt; (direction == <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> ? <span class="stringliteral">&quot;Deleting the subset of incoming&quot;</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> : <span class="stringliteral">&quot;Returning the superset of outgoing&quot;</span>)</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> &lt;&lt; <span class="stringliteral">&quot; trust lines. &quot;</span>;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">if</span> (direction == <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a>)</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> {</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="comment">// This request is for the outgoing set, but there is already a</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="comment">// subset of incoming lines in the cache. Erase that subset</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// to be replaced by the full set. The full set will be built</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// below, and will be returned, if needed, on subsequent calls</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// for either value of outgoing.</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> size &lt;= <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a575f324d2b34dbff7feeb89aba03f4f5">totalLineCount_</a>,</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="stringliteral">&quot;ripple::RippleLineCache::getRippleLines : maximum lines&quot;</span>);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a575f324d2b34dbff7feeb89aba03f4f5">totalLineCount_</a> -= size;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">lines_</a>.erase(otheriter);</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="keywordflow">else</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> {</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// This request is for the incoming set, but there is</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// already a superset of the outgoing trust lines in the cache.</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// The path finding engine will disregard the non-rippling trust</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// lines, so to prevent them from being stored twice, return the</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// outgoing set.</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> key = otherkey;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair</a>{otheriter, <span class="keyword">false</span>};</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> }</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">lines_</a>.emplace(key, <span class="keyword">nullptr</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> <span class="keywordflow">if</span> (inserted)</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> {</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> XRPL_ASSERT(</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> it-&gt;second == <span class="keyword">nullptr</span>,</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="stringliteral">&quot;ripple::RippleLineCache::getRippleLines : null lines&quot;</span>);</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">auto</span> lines =</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <a class="code hl_function" href="classripple_1_1PathFindTrustLine.html#a047421cacb3872179916fbea7dd67a46">PathFindTrustLine::getItems</a>(accountID, *<a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a1e7f0d6b1e32e54310b4c33df40d90cd">ledger_</a>, direction);</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">if</span> (lines.size())</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> it-&gt;second = <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::make_shared&lt;std::vector&lt;PathFindTrustLine&gt;</a>&gt;(</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> std::move(lines));</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a575f324d2b34dbff7feeb89aba03f4f5">totalLineCount_</a> += it-&gt;second-&gt;size();</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> }</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> XRPL_ASSERT(</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> !it-&gt;second || (it-&gt;second-&gt;size() &gt; 0),</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="stringliteral">&quot;ripple::RippleLineCache::getRippleLines : null or nonempty lines&quot;</span>);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">auto</span> <span class="keyword">const</span> size = it-&gt;second ? it-&gt;second-&gt;size() : 0;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> JLOG(<a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a14c710b6de867041ee531fc2d410554d">journal_</a>.<a class="code hl_function" href="classbeast_1_1Journal.html#abbe082bd27ca0f1d1365af2824e4f85b">trace</a>()) &lt;&lt; <span class="stringliteral">&quot;getRippleLines for ledger &quot;</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a1e7f0d6b1e32e54310b4c33df40d90cd">ledger_</a>-&gt;info().seq &lt;&lt; <span class="stringliteral">&quot; found &quot;</span> &lt;&lt; size</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> &lt;&lt; (key.<a class="code hl_variable" href="structripple_1_1RippleLineCache_1_1AccountKey.html#a69df3a3e635a6acb45f7bcf26fb94dda">direction_</a> == <a class="code hl_enumvalue" href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">LineDirection::outgoing</a></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> ? <span class="stringliteral">&quot; outgoing&quot;</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> : <span class="stringliteral">&quot; incoming&quot;</span>)</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> &lt;&lt; <span class="stringliteral">&quot; lines for &quot;</span> &lt;&lt; (inserted ? <span class="stringliteral">&quot;new &quot;</span> : <span class="stringliteral">&quot;existing &quot;</span>)</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> &lt;&lt; accountID &lt;&lt; <span class="stringliteral">&quot; out of a total of &quot;</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">lines_</a>.<a class="code hl_function" href="classripple_1_1base__uint.html#a64d93405f8d7ba89f0a406b32015758f">size</a>() &lt;&lt; <span class="stringliteral">&quot; accounts and &quot;</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> &lt;&lt; <a class="code hl_variable" href="classripple_1_1RippleLineCache.html#a575f324d2b34dbff7feeb89aba03f4f5">totalLineCount_</a> &lt;&lt; <span class="stringliteral">&quot; trust lines&quot;</span>;</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">return</span> it-&gt;second;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span>}</div>
</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> </div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span>} <span class="comment">// namespace ripple</span></div>
<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#l00059">Journal.h:60</a></div></div>
<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#l00328">Journal.h:328</a></div></div>
<div class="ttc" id="aclassbeast_1_1Journal_html_a87d6bd59020d94110027dcab3d9e3357"><div class="ttname"><a href="classbeast_1_1Journal.html#a87d6bd59020d94110027dcab3d9e3357">beast::Journal::info</a></div><div class="ttdeci">Stream info() const</div><div class="ttdef"><b>Definition</b> <a href="Journal_8h_source.html#l00334">Journal.h:334</a></div></div>
<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#l00322">Journal.h:322</a></div></div>
<div class="ttc" id="aclassripple_1_1PathFindTrustLine_html_a047421cacb3872179916fbea7dd67a46"><div class="ttname"><a href="classripple_1_1PathFindTrustLine.html#a047421cacb3872179916fbea7dd67a46">ripple::PathFindTrustLine::getItems</a></div><div class="ttdeci">static std::vector&lt; PathFindTrustLine &gt; getItems(AccountID const &amp;accountID, ReadView const &amp;view, LineDirection direction)</div><div class="ttdef"><b>Definition</b> <a href="TrustLine_8cpp_source.html#l00089">TrustLine.cpp:89</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a14c710b6de867041ee531fc2d410554d"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a14c710b6de867041ee531fc2d410554d">ripple::RippleLineCache::journal_</a></div><div class="ttdeci">beast::Journal journal_</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00071">RippleLineCache.h:71</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a1e7f0d6b1e32e54310b4c33df40d90cd"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a1e7f0d6b1e32e54310b4c33df40d90cd">ripple::RippleLineCache::ledger_</a></div><div class="ttdeci">std::shared_ptr&lt; ReadView const &gt; ledger_</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00069">RippleLineCache.h:69</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a575f324d2b34dbff7feeb89aba03f4f5"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a575f324d2b34dbff7feeb89aba03f4f5">ripple::RippleLineCache::totalLineCount_</a></div><div class="ttdeci">std::size_t totalLineCount_</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00127">RippleLineCache.h:127</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a7729c4eee8aa67b50cba5a4789112744"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a7729c4eee8aa67b50cba5a4789112744">ripple::RippleLineCache::~RippleLineCache</a></div><div class="ttdeci">~RippleLineCache()</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8cpp_source.html#l00033">RippleLineCache.cpp:33</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a792a083533b510d376b6677e422680d8"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a792a083533b510d376b6677e422680d8">ripple::RippleLineCache::hasher_</a></div><div class="ttdeci">ripple::hardened_hash hasher_</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00068">RippleLineCache.h:68</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a7ea63f2f4ef138e92e6ffa1796cd59e6"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a7ea63f2f4ef138e92e6ffa1796cd59e6">ripple::RippleLineCache::lines_</a></div><div class="ttdeci">hash_map&lt; AccountKey, std::shared_ptr&lt; std::vector&lt; PathFindTrustLine &gt; &gt;, AccountKey::Hash &gt; lines_</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00126">RippleLineCache.h:126</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_a95cbe7f07b7d562e453564118b665bf8"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#a95cbe7f07b7d562e453564118b665bf8">ripple::RippleLineCache::getRippleLines</a></div><div class="ttdeci">std::shared_ptr&lt; std::vector&lt; PathFindTrustLine &gt; &gt; getRippleLines(AccountID const &amp;accountID, LineDirection direction)</div><div class="ttdoc">Find the trust lines associated with an account.</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8cpp_source.html#l00041">RippleLineCache.cpp:41</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_aab534a5bd8604a1010f3bf7f44f1341d"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#aab534a5bd8604a1010f3bf7f44f1341d">ripple::RippleLineCache::mLock</a></div><div class="ttdeci">std::mutex mLock</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00066">RippleLineCache.h:66</a></div></div>
<div class="ttc" id="aclassripple_1_1RippleLineCache_html_aad6e273cadc469d05044fb7a9c33609e"><div class="ttname"><a href="classripple_1_1RippleLineCache.html#aad6e273cadc469d05044fb7a9c33609e">ripple::RippleLineCache::RippleLineCache</a></div><div class="ttdeci">RippleLineCache(std::shared_ptr&lt; ReadView const &gt; const &amp;l, beast::Journal j)</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8cpp_source.html#l00025">RippleLineCache.cpp:25</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; 160, detail::AccountIDTag &gt;</a></div></div>
<div class="ttc" id="aclassripple_1_1base__uint_html_a64d93405f8d7ba89f0a406b32015758f"><div class="ttname"><a href="classripple_1_1base__uint.html#a64d93405f8d7ba89f0a406b32015758f">ripple::base_uint::size</a></div><div class="ttdeci">static constexpr std::size_t size()</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00526">base_uint.h:526</a></div></div>
<div class="ttc" id="ais_same_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_same.html">std::is_same_v</a></div><div class="ttdeci">T is_same_v</div></div>
<div class="ttc" id="alock_guard_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</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_afaeac9ab95c58b4359cdd27f59d18568"><div class="ttname"><a href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568">ripple::LineDirection</a></div><div class="ttdeci">LineDirection</div><div class="ttdoc">Describes how an account was found in a path, and how to find the next set of paths.</div><div class="ttdef"><b>Definition</b> <a href="TrustLine_8h_source.html#l00042">TrustLine.h:42</a></div></div>
<div class="ttc" id="anamespaceripple_html_afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476"><div class="ttname"><a href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568a1186f94907928a1412cf4ecfdf8bc476">ripple::LineDirection::outgoing</a></div><div class="ttdeci">@ outgoing</div></div>
<div class="ttc" id="anamespaceripple_html_afaeac9ab95c58b4359cdd27f59d18568ad48f944ac6c78b97d544f98b89b506ca"><div class="ttname"><a href="namespaceripple.html#afaeac9ab95c58b4359cdd27f59d18568ad48f944ac6c78b97d544f98b89b506ca">ripple::LineDirection::incoming</a></div><div class="ttdeci">@ incoming</div></div>
<div class="ttc" id="apair_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair</a></div></div>
<div class="ttc" id="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="astructripple_1_1RippleLineCache_1_1AccountKey_html"><div class="ttname"><a href="structripple_1_1RippleLineCache_1_1AccountKey.html">ripple::RippleLineCache::AccountKey</a></div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00073">RippleLineCache.h:74</a></div></div>
<div class="ttc" id="astructripple_1_1RippleLineCache_1_1AccountKey_html_a69df3a3e635a6acb45f7bcf26fb94dda"><div class="ttname"><a href="structripple_1_1RippleLineCache_1_1AccountKey.html#a69df3a3e635a6acb45f7bcf26fb94dda">ripple::RippleLineCache::AccountKey::direction_</a></div><div class="ttdeci">LineDirection direction_</div><div class="ttdef"><b>Definition</b> <a href="RippleLineCache_8h_source.html#l00076">RippleLineCache.h:76</a></div></div>
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