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seelabs
2021-11-19 13:45:43 +00:00
parent e4e2fce0b3
commit ef77e7e117
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@@ -72,7 +72,7 @@ $(function() {
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> Copyright (c) 2012, 2013 Ripple Labs Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> Copyright (c) 2021 Ripple Labs Inc.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
@@ -88,350 +88,22 @@ $(function() {
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment">//==============================================================================</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#ifndef RIPPLE_BASICS_KEYCACHE_H_INCLUDED</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#define RIPPLE_BASICS_KEYCACHE_H_INCLUDED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#ifndef RIPPLE_BASICS_KEYCACHE_H</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#define RIPPLE_BASICS_KEYCACHE_H</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/UnorderedContainers.h&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/hardened_hash.h&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;ripple/beast/clock/abstract_clock.h&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;ripple/beast/insight/Insight.h&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a>&gt;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keyword">class </span>Key,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keyword">class </span>Hash = hardened_hash&lt;&gt;,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keyword">class </span>KeyEqual = <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/functional/equal_to.html">std::equal_to&lt;Key&gt;</a>,</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="comment">// class Allocator = std::allocator &lt;std::pair &lt;Key const, Entry&gt;&gt;,</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keyword">class </span>Mutex = <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/mutex.html">std::mutex</a>&gt;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html"> 43</a></span>&#160;<span class="keyword">class </span><a class="code" href="classripple_1_1KeyCache.html">KeyCache</a></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;{</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a603f37edad4ed0549113ef706c83e569"> 46</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classripple_1_1KeyCache.html#a603f37edad4ed0549113ef706c83e569">key_type</a> = Key;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a08e89647e3c3229104230c925433920d"> 47</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classbeast_1_1abstract__clock.html">clock_type</a> = <a class="code" href="classbeast_1_1abstract__clock.html">beast::abstract_clock&lt;std::chrono::steady_clock&gt;</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html"> 50</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structripple_1_1KeyCache_1_1Stats.html">Stats</a></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; {</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">class</span> Handler&gt;</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html#aa9e552ef7af5c491dfe1af512af7afaf"> 53</a></span>&#160; <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#aa9e552ef7af5c491dfe1af512af7afaf">Stats</a>(</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp; prefix,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; Handler <span class="keyword">const</span>&amp; handler,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">beast::insight::Collector::ptr</a> <span class="keyword">const</span>&amp; collector)</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; : <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a8800d43f52000e084acc3686058052f3">hook</a>(collector-&gt;make_hook(handler))</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; , <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#add99e15e9461cfb2b1917ebcd12b795e">size</a>(collector-&gt;make_gauge(prefix, <span class="stringliteral">&quot;size&quot;</span>))</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; , <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#aa3804e218120a0c04d14d2525fe6be88">hit_rate</a>(collector-&gt;make_gauge(prefix, <span class="stringliteral">&quot;hit_rate&quot;</span>))</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; , <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a>(0)</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; , <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a>(0)</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html#a8800d43f52000e084acc3686058052f3"> 65</a></span>&#160; <a class="code" href="classbeast_1_1insight_1_1Hook.html">beast::insight::Hook</a> <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a8800d43f52000e084acc3686058052f3">hook</a>;</div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html#add99e15e9461cfb2b1917ebcd12b795e"> 66</a></span>&#160; <a class="code" href="classbeast_1_1insight_1_1Gauge.html">beast::insight::Gauge</a> <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#add99e15e9461cfb2b1917ebcd12b795e">size</a>;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html#aa3804e218120a0c04d14d2525fe6be88"> 67</a></span>&#160; <a class="code" href="classbeast_1_1insight_1_1Gauge.html">beast::insight::Gauge</a> <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#aa3804e218120a0c04d14d2525fe6be88">hit_rate</a>;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; </div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208"> 69</a></span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a>;</div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478"> 70</a></span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; };</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; </div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Entry.html"> 73</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structripple_1_1KeyCache_1_1Entry.html">Entry</a></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; {</div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Entry.html#a03d66ab4d665b1bc9e523407bfe2a843"> 75</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="structripple_1_1KeyCache_1_1Entry.html#a03d66ab4d665b1bc9e523407bfe2a843">Entry</a>(<a class="code" href="classbeast_1_1abstract__clock.html#a4e16832b0bdf9392c5138bbbde024d8e">clock_type::time_point</a> <span class="keyword">const</span>&amp; last_access_)</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; : <a class="code" href="structripple_1_1KeyCache_1_1Entry.html#ab053cbd9e25f3763730e5773cdb56033">last_access</a>(last_access_)</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="structripple_1_1KeyCache_1_1Entry.html#ab053cbd9e25f3763730e5773cdb56033"> 80</a></span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html#a4e16832b0bdf9392c5138bbbde024d8e">clock_type::time_point</a> <a class="code" href="structripple_1_1KeyCache_1_1Entry.html#ab053cbd9e25f3763730e5773cdb56033">last_access</a>;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; };</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; </div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ac1ad52751bd684ef0f32ca0c68813638"> 83</a></span>&#160; <span class="keyword">using</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map.html">map_type</a> = <a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map.html">hardened_hash_map&lt;key_type, Entry, Hash, KeyEqual&gt;</a>;</div>
<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a646ad7fefaaedee71f950217163fe477"> 84</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classripple_1_1KeyCache.html#a646ad7fefaaedee71f950217163fe477">iterator</a> = <span class="keyword">typename</span> map_type::iterator;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148"> 87</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">size_type</a> = <span class="keyword">typename</span> map_type::size_type;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c"> 90</a></span>&#160; Mutex <span class="keyword">mutable</span> <a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>;</div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c"> 91</a></span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map.html">map_type</a> <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3"> 92</a></span>&#160; Stats <span class="keyword">mutable</span> <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>;</div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383"> 93</a></span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html">clock_type</a>&amp; <a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>;</div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ad26993d44431675f75e3d4350381cb56"> 94</a></span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span> <a class="code" href="classripple_1_1KeyCache.html#ad26993d44431675f75e3d4350381cb56">m_name</a>;</div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169"> 95</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">size_type</a> <a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca"> 96</a></span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html#ad024b15fa67696e8d1eba3744e800d32">clock_type::duration</a> <a class="code" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">m_target_age</a>;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#adeda9405434e10b0074ae88522dfc570"> 104</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#adeda9405434e10b0074ae88522dfc570">KeyCache</a>(</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp; <a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>,</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html">clock_type</a>&amp; <a class="code" href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056">clock</a>,</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">beast::insight::Collector::ptr</a> <span class="keyword">const</span>&amp; collector,</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">size_type</a> target_size = 0,</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::seconds</a> expiration = <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::minutes</a>{2})</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; : <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>(<a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>, <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/functional/bind.html">std::bind</a>(&amp;<a class="code" href="classripple_1_1KeyCache.html#a9db213c58a5a854b48d7614bf981ebca">KeyCache::collect_metrics</a>, <span class="keyword">this</span>), collector)</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>(<a class="code" href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056">clock</a>)</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#ad26993d44431675f75e3d4350381cb56">m_name</a>(<a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>)</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a>(target_size)</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">m_target_age</a>(expiration)</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; {</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; }</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="comment">// VFALCO TODO Use a forwarding constructor call here</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#afbfbf71fbbe50b7a7a74a7b21f088267"> 119</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#afbfbf71fbbe50b7a7a74a7b21f088267">KeyCache</a>(</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp; <a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html">clock_type</a>&amp; <a class="code" href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056">clock</a>,</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">size_type</a> target_size = 0,</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::seconds</a> expiration = <a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::minutes</a>{2})</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; : <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>(</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>,</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/functional/bind.html">std::bind</a>(&amp;<a class="code" href="classripple_1_1KeyCache.html#a9db213c58a5a854b48d7614bf981ebca">KeyCache::collect_metrics</a>, <span class="keyword">this</span>),</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <a class="code" href="classbeast_1_1insight_1_1NullCollector.html#a8821f08e6db108aacae400a738286da6">beast::insight::NullCollector::New</a>())</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>(<a class="code" href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056">clock</a>)</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#ad26993d44431675f75e3d4350381cb56">m_name</a>(<a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>)</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a>(target_size)</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; , <a class="code" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">m_target_age</a>(expiration)</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; {</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="comment">//--------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp;</div>
<div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f"> 139</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">name</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1KeyCache.html#ad26993d44431675f75e3d4350381cb56">m_name</a>;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; }</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a08e89647e3c3229104230c925433920d">clock_type</a>&amp;</div>
<div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056"> 146</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056">clock</a>()</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">size_type</a></div>
<div class="line"><a name="l00153"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ab9ecd66501ebdc5d92af5f6f86d178ca"> 153</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#ab9ecd66501ebdc5d92af5f6f86d178ca">size</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/size.html">size</a>();</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; }</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">void</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ac997750bec1980c1899f604486eb45c8"> 161</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#ac997750bec1980c1899f604486eb45c8">clear</a>()</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/clear.html">clear</a>();</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; }</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keywordtype">void</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a940476190bb52cda457bc93fa492d6e3"> 168</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a940476190bb52cda457bc93fa492d6e3">reset</a>()</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; {</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/clear.html">clear</a>();</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a> = 0;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a> = 0;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keywordtype">void</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a1c5dbed9b53bcdf3efacce2a3be793cf"> 177</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a1c5dbed9b53bcdf3efacce2a3be793cf">setTargetSize</a>(<a class="code" href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">size_type</a> s)</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a> = s;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; }</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keywordtype">void</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a644f17c49571a93e3d421bc5fc265306"> 184</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a644f17c49571a93e3d421bc5fc265306">setTargetAge</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::seconds</a> s)</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">m_target_age</a> = s;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; }</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">class</span> KeyComparable&gt;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a0e1b651901d89303817ce4292f3dfbac"> 195</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a0e1b651901d89303817ce4292f3dfbac">exists</a>(KeyComparable <span class="keyword">const</span>&amp; key)<span class="keyword"> const</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; <span class="keyword">typename</span> map_type::const_iterator <span class="keyword">const</span> iter(<a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/find.html">find</a>(key));</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="keywordflow">if</span> (iter != <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/end.html">end</a>())</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; {</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; ++<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a>;</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; }</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; ++<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a>;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; }</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a72fad1c7856e2c855e32de68eed56f82"> 213</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a72fad1c7856e2c855e32de68eed56f82">insert</a>(Key <span class="keyword">const</span>&amp; key)</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; {</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html#a4e16832b0bdf9392c5138bbbde024d8e">clock_type::time_point</a> <span class="keyword">const</span> now(<a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>.<a class="code" href="classbeast_1_1abstract__clock.html#ac9a577663353bfea66a096f12cb85293">now</a>());</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keyword">auto</span> [it, inserted] = <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/emplace.html">emplace</a>(</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; std::piecewise_construct,</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/tuple/forward_as_tuple.html">std::forward_as_tuple</a>(key),</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/tuple/forward_as_tuple.html">std::forward_as_tuple</a>(now));</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">if</span> (!inserted)</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; {</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; it-&gt;second.last_access = now;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; }</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; }</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">class</span> KeyComparable&gt;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#ad93a1bca0da205d937a9b9781ffab7c9"> 234</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#ad93a1bca0da205d937a9b9781ffab7c9">touch_if_exists</a>(KeyComparable <span class="keyword">const</span>&amp; key)</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; {</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a646ad7fefaaedee71f950217163fe477">iterator</a> <span class="keyword">const</span> iter(<a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/find.html">find</a>(key));</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordflow">if</span> (iter == <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/end.html">end</a>())</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; {</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; ++<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a>;</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; }</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; iter-&gt;second.last_access = <a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>.<a class="code" href="classbeast_1_1abstract__clock.html#ac9a577663353bfea66a096f12cb85293">now</a>();</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; ++<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a>;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; }</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a3bc4a9df6d2a712da022966c6b4f7090"> 253</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a3bc4a9df6d2a712da022966c6b4f7090">erase</a>(<a class="code" href="classripple_1_1KeyCache.html#a603f37edad4ed0549113ef706c83e569">key_type</a> <span class="keyword">const</span>&amp; key)</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; {</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/erase.html">erase</a>(key) &gt; 0)</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; {</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; ++<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a>;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; }</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; ++<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a>;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; }</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="keywordtype">void</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a774eec36bd59b6a346ef7a613734d921"> 267</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a774eec36bd59b6a346ef7a613734d921">sweep</a>()</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; {</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html#a4e16832b0bdf9392c5138bbbde024d8e">clock_type::time_point</a> <span class="keyword">const</span> now(<a class="code" href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">m_clock</a>.<a class="code" href="classbeast_1_1abstract__clock.html#ac9a577663353bfea66a096f12cb85293">now</a>());</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html#a4e16832b0bdf9392c5138bbbde024d8e">clock_type::time_point</a> when_expire;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; </div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a> == 0 || (<a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/size.html">size</a>() &lt;= <a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a>))</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; {</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; when_expire = now - <a class="code" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">m_target_age</a>;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; }</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; {</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; when_expire = now - <a class="code" href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">m_target_age</a> * <a class="code" href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">m_target_size</a> / <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/size.html">size</a>();</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; <a class="code" href="classbeast_1_1abstract__clock.html#ad024b15fa67696e8d1eba3744e800d32">clock_type::duration</a> <span class="keyword">const</span> minimumAge(<a class="codeRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::seconds</a>(1));</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keywordflow">if</span> (when_expire &gt; (now - minimumAge))</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; when_expire = now - minimumAge;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; }</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a646ad7fefaaedee71f950217163fe477">iterator</a> it = <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/begin.html">begin</a>();</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordflow">while</span> (it != <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/end.html">end</a>())</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; {</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keywordflow">if</span> (it-&gt;second.last_access &gt; now)</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; {</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; it-&gt;second.last_access = now;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; ++it;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; }</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (it-&gt;second.last_access &lt;= when_expire)</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; it = <a class="code" href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">m_map</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/unordered_map/erase.html">erase</a>(it);</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; }</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; ++it;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; }</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; }</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; <span class="keywordtype">void</span></div>
<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classripple_1_1KeyCache.html#a9db213c58a5a854b48d7614bf981ebca"> 309</a></span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a9db213c58a5a854b48d7614bf981ebca">collect_metrics</a>()</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; {</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#add99e15e9461cfb2b1917ebcd12b795e">size</a>.<a class="code" href="classbeast_1_1insight_1_1Gauge.html#a831e86135961e22962a0e545c66190b8">set</a>(<a class="code" href="classripple_1_1KeyCache.html#ab9ecd66501ebdc5d92af5f6f86d178ca">size</a>());</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; </div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; {</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">beast::insight::Gauge::value_type</a> hit_rate(0);</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; {</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(<a class="code" href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">m_mutex</a>);</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="keyword">auto</span> <span class="keyword">const</span> total(<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a> + <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">misses</a>);</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="keywordflow">if</span> (total != 0)</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; hit_rate = (<a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">hits</a> * 100) / total;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; }</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <a class="code" href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">m_stats</a>.<a class="code" href="structripple_1_1KeyCache_1_1Stats.html#aa3804e218120a0c04d14d2525fe6be88">hit_rate</a>.<a class="code" href="classbeast_1_1insight_1_1Gauge.html#a831e86135961e22962a0e545c66190b8">set</a>(hit_rate);</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; }</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; }</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160;};</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; </div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160;} <span class="comment">// namespace ripple</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; </div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/TaggedCache.h&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;ripple/basics/base_uint.h&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="namespaceripple.html#a979e8d8bf61cdf2a37f13aa2e7ed906e"> 28</a></span>&#160;<span class="keyword">using</span> <a class="code" href="classripple_1_1TaggedCache.html">KeyCache</a> = <a class="code" href="classripple_1_1TaggedCache.html">TaggedCache&lt;uint256, int, true&gt;</a>;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;} <span class="comment">// namespace ripple</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#endif // RIPPLE_BASICS_KEYCACHE_H</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="aclassripple_1_1KeyCache_html_a9c63cd7750fe96e1047bd57ec575c79c"><div class="ttname"><a href="classripple_1_1KeyCache.html#a9c63cd7750fe96e1047bd57ec575c79c">ripple::KeyCache::m_mutex</a></div><div class="ttdeci">Mutex m_mutex</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00090">KeyCache.h:90</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a5fb5ad1c0077b57eb707f7b5051810c3"><div class="ttname"><a href="classripple_1_1KeyCache.html#a5fb5ad1c0077b57eb707f7b5051810c3">ripple::KeyCache::m_stats</a></div><div class="ttdeci">Stats m_stats</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00092">KeyCache.h:92</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a646ad7fefaaedee71f950217163fe477"><div class="ttname"><a href="classripple_1_1KeyCache.html#a646ad7fefaaedee71f950217163fe477">ripple::KeyCache&lt; Key &gt;::iterator</a></div><div class="ttdeci">typename map_type::iterator iterator</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00084">KeyCache.h:84</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ab9ecd66501ebdc5d92af5f6f86d178ca"><div class="ttname"><a href="classripple_1_1KeyCache.html#ab9ecd66501ebdc5d92af5f6f86d178ca">ripple::KeyCache::size</a></div><div class="ttdeci">size_type size() const</div><div class="ttdoc">Returns the number of items in the container.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00153">KeyCache.h:153</a></div></div>
<div class="ttc" id="abind_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/functional/bind.html">std::bind</a></div><div class="ttdeci">T bind(T... args)</div></div>
<div class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div><div class="ttdoc">STL class.</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&lt; Collector &gt;</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a3bc4a9df6d2a712da022966c6b4f7090"><div class="ttname"><a href="classripple_1_1KeyCache.html#a3bc4a9df6d2a712da022966c6b4f7090">ripple::KeyCache::erase</a></div><div class="ttdeci">bool erase(key_type const &amp;key)</div><div class="ttdoc">Remove the specified cache entry.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00253">KeyCache.h:253</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a791d8df6c5602f1e78f62bd27a0aa79c"><div class="ttname"><a href="classripple_1_1KeyCache.html#a791d8df6c5602f1e78f62bd27a0aa79c">ripple::KeyCache::m_map</a></div><div class="ttdeci">map_type m_map</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00091">KeyCache.h:91</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html_aa9e552ef7af5c491dfe1af512af7afaf"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html#aa9e552ef7af5c491dfe1af512af7afaf">ripple::KeyCache::Stats::Stats</a></div><div class="ttdeci">Stats(std::string const &amp;prefix, Handler const &amp;handler, beast::insight::Collector::ptr const &amp;collector)</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00053">KeyCache.h:53</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ad26993d44431675f75e3d4350381cb56"><div class="ttname"><a href="classripple_1_1KeyCache.html#ad26993d44431675f75e3d4350381cb56">ripple::KeyCache::m_name</a></div><div class="ttdeci">const std::string m_name</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00094">KeyCache.h:94</a></div></div>
<div class="ttc" id="afind_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/find.html">std::unordered_map::find</a></div><div class="ttdeci">T find(T... args)</div></div>
<div class="ttc" id="asize_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/size.html">std::unordered_map::size</a></div><div class="ttdeci">T size(T... args)</div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html_add99e15e9461cfb2b1917ebcd12b795e"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html#add99e15e9461cfb2b1917ebcd12b795e">ripple::KeyCache::Stats::size</a></div><div class="ttdeci">beast::insight::Gauge size</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00066">KeyCache.h:66</a></div></div>
<div class="ttc" id="aduration_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::seconds</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a9db213c58a5a854b48d7614bf981ebca"><div class="ttname"><a href="classripple_1_1KeyCache.html#a9db213c58a5a854b48d7614bf981ebca">ripple::KeyCache::collect_metrics</a></div><div class="ttdeci">void collect_metrics()</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00309">KeyCache.h:309</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html_ad6312fa8c1e7c5f5e6714ca95fb11208"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html#ad6312fa8c1e7c5f5e6714ca95fb11208">ripple::KeyCache::Stats::hits</a></div><div class="ttdeci">std::size_t hits</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00069">KeyCache.h:69</a></div></div>
<div class="ttc" id="aemplace_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/emplace.html">std::unordered_map::emplace</a></div><div class="ttdeci">T emplace(T... args)</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 class="ttdoc">STL class.</div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a940476190bb52cda457bc93fa492d6e3"><div class="ttname"><a href="classripple_1_1KeyCache.html#a940476190bb52cda457bc93fa492d6e3">ripple::KeyCache::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00168">KeyCache.h:168</a></div></div>
<div class="ttc" id="aclear_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/clear.html">std::unordered_map::clear</a></div><div class="ttdeci">T clear(T... args)</div></div>
<div class="ttc" id="aclassbeast_1_1abstract__clock_html_ac9a577663353bfea66a096f12cb85293"><div class="ttname"><a href="classbeast_1_1abstract__clock.html#ac9a577663353bfea66a096f12cb85293">beast::abstract_clock::now</a></div><div class="ttdeci">virtual time_point now() const =0</div><div class="ttdoc">Returns the current time.</div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ad93a1bca0da205d937a9b9781ffab7c9"><div class="ttname"><a href="classripple_1_1KeyCache.html#ad93a1bca0da205d937a9b9781ffab7c9">ripple::KeyCache::touch_if_exists</a></div><div class="ttdeci">bool touch_if_exists(KeyComparable const &amp;key)</div><div class="ttdoc">Refresh the last access time on a key if present.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00234">KeyCache.h:234</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ab22fb8723823503213669c5b8c6da383"><div class="ttname"><a href="classripple_1_1KeyCache.html#ab22fb8723823503213669c5b8c6da383">ripple::KeyCache::m_clock</a></div><div class="ttdeci">clock_type &amp; m_clock</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00093">KeyCache.h:93</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_afb9c124c5f54fd8d79a7d9bd8430e169"><div class="ttname"><a href="classripple_1_1KeyCache.html#afb9c124c5f54fd8d79a7d9bd8430e169">ripple::KeyCache::m_target_size</a></div><div class="ttdeci">size_type m_target_size</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00095">KeyCache.h:95</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_adeda9405434e10b0074ae88522dfc570"><div class="ttname"><a href="classripple_1_1KeyCache.html#adeda9405434e10b0074ae88522dfc570">ripple::KeyCache::KeyCache</a></div><div class="ttdeci">KeyCache(std::string const &amp;name, clock_type &amp;clock, beast::insight::Collector::ptr const &amp;collector, size_type target_size=0, std::chrono::seconds expiration=std::chrono::minutes{2})</div><div class="ttdoc">Construct with the specified name.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00104">KeyCache.h:104</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a72fad1c7856e2c855e32de68eed56f82"><div class="ttname"><a href="classripple_1_1KeyCache.html#a72fad1c7856e2c855e32de68eed56f82">ripple::KeyCache::insert</a></div><div class="ttdeci">bool insert(Key const &amp;key)</div><div class="ttdoc">Insert the specified key.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00213">KeyCache.h:213</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a08e89647e3c3229104230c925433920d"><div class="ttname"><a href="classripple_1_1KeyCache.html#a08e89647e3c3229104230c925433920d">ripple::KeyCache::clock_type</a></div><div class="ttdeci">beast::abstract_clock&lt; std::chrono::steady_clock &gt; clock_type</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00047">KeyCache.h:47</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html_aa3804e218120a0c04d14d2525fe6be88"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html#aa3804e218120a0c04d14d2525fe6be88">ripple::KeyCache::Stats::hit_rate</a></div><div class="ttdeci">beast::insight::Gauge hit_rate</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00067">KeyCache.h:67</a></div></div>
<div class="ttc" id="aerase_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/erase.html">std::unordered_map::erase</a></div><div class="ttdeci">T erase(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a0e1b651901d89303817ce4292f3dfbac"><div class="ttname"><a href="classripple_1_1KeyCache.html#a0e1b651901d89303817ce4292f3dfbac">ripple::KeyCache::exists</a></div><div class="ttdeci">bool exists(KeyComparable const &amp;key) const</div><div class="ttdoc">Returns true if the key was found.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00195">KeyCache.h:195</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ae9cbf5ac4454449560632319b3338dca"><div class="ttname"><a href="classripple_1_1KeyCache.html#ae9cbf5ac4454449560632319b3338dca">ripple::KeyCache::m_target_age</a></div><div class="ttdeci">clock_type::duration m_target_age</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00096">KeyCache.h:96</a></div></div>
<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint64_t</a></div></div>
<div class="ttc" id="aforward_as_tuple_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/tuple/forward_as_tuple.html">std::forward_as_tuple</a></div><div class="ttdeci">T forward_as_tuple(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a774eec36bd59b6a346ef7a613734d921"><div class="ttname"><a href="classripple_1_1KeyCache.html#a774eec36bd59b6a346ef7a613734d921">ripple::KeyCache::sweep</a></div><div class="ttdeci">void sweep()</div><div class="ttdoc">Remove stale entries from the cache.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00267">KeyCache.h:267</a></div></div>
<div class="ttc" id="aclassbeast_1_1abstract__clock_html"><div class="ttname"><a href="classbeast_1_1abstract__clock.html">beast::abstract_clock&lt; std::chrono::steady_clock &gt;</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Entry_html_a03d66ab4d665b1bc9e523407bfe2a843"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Entry.html#a03d66ab4d665b1bc9e523407bfe2a843">ripple::KeyCache::Entry::Entry</a></div><div class="ttdeci">Entry(clock_type::time_point const &amp;last_access_)</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00075">KeyCache.h:75</a></div></div>
<div class="ttc" id="aclassbeast_1_1insight_1_1Gauge_html"><div class="ttname"><a href="classbeast_1_1insight_1_1Gauge.html">beast::insight::Gauge</a></div><div class="ttdoc">A metric for measuring an integral value.</div><div class="ttdef"><b>Definition:</b> <a href="Gauge_8h_source.html#l00039">Gauge.h:39</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_afbfbf71fbbe50b7a7a74a7b21f088267"><div class="ttname"><a href="classripple_1_1KeyCache.html#afbfbf71fbbe50b7a7a74a7b21f088267">ripple::KeyCache::KeyCache</a></div><div class="ttdeci">KeyCache(std::string const &amp;name, clock_type &amp;clock, size_type target_size=0, std::chrono::seconds expiration=std::chrono::minutes{2})</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00119">KeyCache.h:119</a></div></div>
<div class="ttc" id="aequal_to_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/functional/equal_to.html">std::equal_to</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ac997750bec1980c1899f604486eb45c8"><div class="ttname"><a href="classripple_1_1KeyCache.html#ac997750bec1980c1899f604486eb45c8">ripple::KeyCache::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Empty the cache.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00161">KeyCache.h:161</a></div></div>
<div class="ttc" id="aclassripple_1_1TaggedCache_html"><div class="ttname"><a href="classripple_1_1TaggedCache.html">ripple::TaggedCache</a></div><div class="ttdoc">Map/cache combination.</div><div class="ttdef"><b>Definition:</b> <a href="Application_8h_source.html#l00063">Application.h:63</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="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Entry_html_ab053cbd9e25f3763730e5773cdb56033"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Entry.html#ab053cbd9e25f3763730e5773cdb56033">ripple::KeyCache::Entry::last_access</a></div><div class="ttdeci">clock_type::time_point last_access</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00080">KeyCache.h:80</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a1c5dbed9b53bcdf3efacce2a3be793cf"><div class="ttname"><a href="classripple_1_1KeyCache.html#a1c5dbed9b53bcdf3efacce2a3be793cf">ripple::KeyCache::setTargetSize</a></div><div class="ttdeci">void setTargetSize(size_type s)</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00177">KeyCache.h:177</a></div></div>
<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/begin.html">std::unordered_map::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a27ffdc83af477dfc719054907918a148"><div class="ttname"><a href="classripple_1_1KeyCache.html#a27ffdc83af477dfc719054907918a148">ripple::KeyCache&lt; Key &gt;::size_type</a></div><div class="ttdeci">typename map_type::size_type size_type</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00087">KeyCache.h:87</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Entry_html"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Entry.html">ripple::KeyCache::Entry</a></div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00073">KeyCache.h:73</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a644f17c49571a93e3d421bc5fc265306"><div class="ttname"><a href="classripple_1_1KeyCache.html#a644f17c49571a93e3d421bc5fc265306">ripple::KeyCache::setTargetAge</a></div><div class="ttdeci">void setTargetAge(std::chrono::seconds s)</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00184">KeyCache.h:184</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_ae3c41f354173e2abfbb5de76eec1698f"><div class="ttname"><a href="classripple_1_1KeyCache.html#ae3c41f354173e2abfbb5de76eec1698f">ripple::KeyCache::name</a></div><div class="ttdeci">std::string const &amp; name() const</div><div class="ttdoc">Retrieve the name of this object.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00139">KeyCache.h:139</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html">ripple::KeyCache::Stats</a></div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00050">KeyCache.h:50</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html_a76d8e8b2b0582aa67351c4693c0d3478"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html#a76d8e8b2b0582aa67351c4693c0d3478">ripple::KeyCache::Stats::misses</a></div><div class="ttdeci">std::size_t misses</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00070">KeyCache.h:70</a></div></div>
<div class="ttc" id="amutex_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a></div></div>
<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
<div class="ttc" id="aend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map/end.html">std::unordered_map::end</a></div><div class="ttdeci">T end(T... args)</div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a0cbb2397d4e536bf904871481ca03056"><div class="ttname"><a href="classripple_1_1KeyCache.html#a0cbb2397d4e536bf904871481ca03056">ripple::KeyCache::clock</a></div><div class="ttdeci">clock_type &amp; clock()</div><div class="ttdoc">Return the clock associated with the cache.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00146">KeyCache.h:146</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html"><div class="ttname"><a href="classripple_1_1KeyCache.html">ripple::KeyCache</a></div><div class="ttdoc">Maintains a cache of keys with no associated data.</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00043">KeyCache.h:43</a></div></div>
<div class="ttc" id="aunordered_map_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/unordered_map.html">std::unordered_map</a></div><div class="ttdoc">STL class.</div></div>
<div class="ttc" id="aclassbeast_1_1abstract__clock_html_a4e16832b0bdf9392c5138bbbde024d8e"><div class="ttname"><a href="classbeast_1_1abstract__clock.html#a4e16832b0bdf9392c5138bbbde024d8e">beast::abstract_clock&lt; std::chrono::steady_clock &gt;::time_point</a></div><div class="ttdeci">typename std::chrono::steady_clock ::time_point time_point</div><div class="ttdef"><b>Definition:</b> <a href="abstract__clock_8h_source.html#l00063">abstract_clock.h:63</a></div></div>
<div class="ttc" id="aclassbeast_1_1insight_1_1Hook_html"><div class="ttname"><a href="classbeast_1_1insight_1_1Hook.html">beast::insight::Hook</a></div><div class="ttdoc">A reference to a handler for performing polled collection.</div><div class="ttdef"><b>Definition:</b> <a href="Hook_8h_source.html#l00031">Hook.h:31</a></div></div>
<div class="ttc" id="aclassbeast_1_1insight_1_1NullCollector_html_a8821f08e6db108aacae400a738286da6"><div class="ttname"><a href="classbeast_1_1insight_1_1NullCollector.html#a8821f08e6db108aacae400a738286da6">beast::insight::NullCollector::New</a></div><div class="ttdeci">static std::shared_ptr&lt; Collector &gt; New()</div><div class="ttdef"><b>Definition:</b> <a href="NullCollector_8cpp_source.html#l00152">NullCollector.cpp:152</a></div></div>
<div class="ttc" id="aclassbeast_1_1abstract__clock_html_ad024b15fa67696e8d1eba3744e800d32"><div class="ttname"><a href="classbeast_1_1abstract__clock.html#ad024b15fa67696e8d1eba3744e800d32">beast::abstract_clock&lt; std::chrono::steady_clock &gt;::duration</a></div><div class="ttdeci">typename std::chrono::steady_clock ::duration duration</div><div class="ttdef"><b>Definition:</b> <a href="abstract__clock_8h_source.html#l00062">abstract_clock.h:62</a></div></div>
<div class="ttc" id="astructripple_1_1KeyCache_1_1Stats_html_a8800d43f52000e084acc3686058052f3"><div class="ttname"><a href="structripple_1_1KeyCache_1_1Stats.html#a8800d43f52000e084acc3686058052f3">ripple::KeyCache::Stats::hook</a></div><div class="ttdeci">beast::insight::Hook hook</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00065">KeyCache.h:65</a></div></div>
<div class="ttc" id="aclassripple_1_1KeyCache_html_a603f37edad4ed0549113ef706c83e569"><div class="ttname"><a href="classripple_1_1KeyCache.html#a603f37edad4ed0549113ef706c83e569">ripple::KeyCache&lt; Key &gt;::key_type</a></div><div class="ttdeci">Key key_type</div><div class="ttdef"><b>Definition:</b> <a href="KeyCache_8h_source.html#l00046">KeyCache.h:46</a></div></div>
<div class="ttc" id="aclassbeast_1_1insight_1_1Gauge_html_a831e86135961e22962a0e545c66190b8"><div class="ttname"><a href="classbeast_1_1insight_1_1Gauge.html#a831e86135961e22962a0e545c66190b8">beast::insight::Gauge::set</a></div><div class="ttdeci">void set(value_type value) const</div><div class="ttdoc">Set the value on the gauge.</div><div class="ttdef"><b>Definition:</b> <a href="Gauge_8h_source.html#l00068">Gauge.h:68</a></div></div>
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