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<li class="navelem"><a class="el" href="dir_df9c78dcf3f59a33b12284f95992a64b.html">ripple</a></li><li class="navelem"><a class="el" href="dir_ceb6d1bc218d15504336f945ff1322da.html">nodestore</a></li> </ul>
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<div class="title">DatabaseShard.h</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//------------------------------------------------------------------------------</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (c) 2012, 2017 Ripple Labs Inc.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef RIPPLE_NODESTORE_DATABASESHARD_H_INCLUDED</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define RIPPLE_NODESTORE_DATABASESHARD_H_INCLUDED</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <ripple/app/ledger/Ledger.h></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <ripple/basics/RangeSet.h></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <ripple/nodestore/Database.h></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <ripple/nodestore/Types.h></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <boost/optional.hpp></span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a>></span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span>NodeStore {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
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<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classripple_1_1NodeStore_1_1DatabaseShard.html"> 37</a></span> <span class="keyword">class </span><a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html">DatabaseShard</a> : <span class="keyword">public</span> <a class="code" href="classripple_1_1NodeStore_1_1Database.html">Database</a></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a314de2dc9243ccaa1e180d1a0ac4b0b2"> 49</a></span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a314de2dc9243ccaa1e180d1a0ac4b0b2">DatabaseShard</a>(</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>& name,</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="classripple_1_1Stoppable.html">Stoppable</a>& parent,</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="classripple_1_1NodeStore_1_1Scheduler.html">Scheduler</a>& scheduler,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">int</span> readThreads,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="classripple_1_1Section.html">Section</a> <span class="keyword">const</span>& config,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="classbeast_1_1Journal.html">beast::Journal</a> journal)</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  : <a class="code" href="classripple_1_1NodeStore_1_1Database.html">Database</a>(name, parent, scheduler, readThreads, config, journal)</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a620a17c7b2a6ca4a05c79a1f6637abca">init</a>() = 0;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">virtual</span> boost::optional<std::uint32_t></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a98859a0327f85b03a0543aef924401fa">prepareLedger</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> validLedgerSeq) = 0;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#ad8e8bbb0a357e1d0ac626924dbfe2059">prepareShard</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> shardIndex) = 0;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a435483044cad610e25db707999b4544a">removePreShard</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> shardIndex) = 0;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  </div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a2532e82d6e564cc5c186a23c4e848de0">getPreShards</a>() = 0;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#ae86f08a36583502b9050a087c95ba1b6">importShard</a>(</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> shardIndex,</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  boost::filesystem::path <span class="keyword">const</span>& srcDir) = 0;</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr<Ledger></a></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a02c60dcae61eec37bbe4c64dbabf46d6">fetchLedger</a>(<a class="code" href="classripple_1_1base__uint.html">uint256</a> <span class="keyword">const</span>& hash, <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> seq) = 0;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a9ac112f923d4db1db4bf3a52711aab12">setStored</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr<Ledger const></a> <span class="keyword">const</span>& ledger) = 0;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a244dc1088aa5c92cd08977375e49ce6c">getCompleteShards</a>() = 0;</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  </div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#ac76952eab18b405647fb06f599f3fb23">validate</a>() = 0;</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a41cdfc11611d60733f42c72cfa684bed">ledgersPerShard</a>() <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  </div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#aaf2ae45e50a851560136d60e7ed82a15">earliestShardIndex</a>() <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#aa1a0278ace9b70c807f585c3eae6d787">seqToShardIndex</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> seq) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  </div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a723fa052936812d4c79bfa9b440b2327">firstLedgerSeq</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> shardIndex) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  </div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">virtual</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a376e9e9081ea89d50cc5a15c4ce91cc0">lastLedgerSeq</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> shardIndex) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  </div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">virtual</span> boost::filesystem::path <span class="keyword">const</span>&</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a4cb31c3ebed3f201bc0cd563666ed3c9">getRootDir</a>() <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
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<div class="line"><a name="l00186"></a><span class="lineno"><a class="line" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a12b4f6e3c30bc8844edbf0fa421efc2f"> 186</a></span>  <span class="keyword">static</span> constexpr <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a12b4f6e3c30bc8844edbf0fa421efc2f">ledgersPerShardDefault</a>{16384u};</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> };</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  </div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> constexpr <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="namespaceripple_1_1NodeStore.html#a6b98af8d6a33587b4ad55e3bf079bcda"> 190</a></span> <a class="code" href="namespaceripple_1_1NodeStore.html#a6b98af8d6a33587b4ad55e3bf079bcda">seqToShardIndex</a>(</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> seq,</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> ledgersPerShard = <a class="code" href="classripple_1_1NodeStore_1_1DatabaseShard.html#a12b4f6e3c30bc8844edbf0fa421efc2f">DatabaseShard::ledgersPerShardDefault</a>)</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> {</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> (seq - 1) / ledgersPerShard;</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> }</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  </div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">extern</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr<DatabaseShard></a></div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <a class="code" href="namespaceripple_1_1NodeStore.html#a6a86acbbdee7c4cf7f1884b4247c988a">make_ShardStore</a>(</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="classripple_1_1Application.html">Application</a>& app,</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="classripple_1_1Stoppable.html">Stoppable</a>& parent,</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  Scheduler& scheduler,</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">int</span> readThreads,</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="classbeast_1_1Journal.html">beast::Journal</a> j);</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  </div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> } <span class="comment">// namespace NodeStore</span></div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> } <span class="comment">// namespace ripple</span></div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#endif</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceripple_1_1NodeStore_html_a6a86acbbdee7c4cf7f1884b4247c988a"><div class="ttname"><a href="namespaceripple_1_1NodeStore.html#a6a86acbbdee7c4cf7f1884b4247c988a">ripple::NodeStore::make_ShardStore</a></div><div class="ttdeci">std::unique_ptr< DatabaseShard > make_ShardStore(Application &app, Stoppable &parent, Scheduler &scheduler, int readThreads, beast::Journal j)</div><div class="ttdef"><b>Definition:</b> <a href="DatabaseShardImp_8cpp_source.html#l01424">DatabaseShardImp.cpp:1424</a></div></div>
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<div class="ttc" id="aclassripple_1_1Section_html"><div class="ttname"><a href="classripple_1_1Section.html">ripple::Section</a></div><div class="ttdoc">Holds a collection of configuration values.</div><div class="ttdef"><b>Definition:</b> <a href="BasicConfig_8h_source.html#l00043">BasicConfig.h:43</a></div></div>
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<div class="ttc" id="aclassripple_1_1Application_html"><div class="ttname"><a href="classripple_1_1Application.html">ripple::Application</a></div><div class="ttdef"><b>Definition:</b> <a href="Application_8h_source.html#l00097">Application.h:97</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1Database_html"><div class="ttname"><a href="classripple_1_1NodeStore_1_1Database.html">ripple::NodeStore::Database</a></div><div class="ttdoc">Persistency layer for NodeObject.</div><div class="ttdef"><b>Definition:</b> <a href="Database_8h_source.html#l00053">Database.h:53</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_aaf2ae45e50a851560136d60e7ed82a15"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#aaf2ae45e50a851560136d60e7ed82a15">ripple::NodeStore::DatabaseShard::earliestShardIndex</a></div><div class="ttdeci">virtual std::uint32_t earliestShardIndex() const =0</div></div>
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<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>
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<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 class="ttdoc">STL class.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_aa1a0278ace9b70c807f585c3eae6d787"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#aa1a0278ace9b70c807f585c3eae6d787">ripple::NodeStore::DatabaseShard::seqToShardIndex</a></div><div class="ttdeci">virtual std::uint32_t seqToShardIndex(std::uint32_t seq) const =0</div><div class="ttdoc">Calculates the shard index for a given ledger sequence.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a314de2dc9243ccaa1e180d1a0ac4b0b2"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a314de2dc9243ccaa1e180d1a0ac4b0b2">ripple::NodeStore::DatabaseShard::DatabaseShard</a></div><div class="ttdeci">DatabaseShard(std::string const &name, Stoppable &parent, Scheduler &scheduler, int readThreads, Section const &config, beast::Journal journal)</div><div class="ttdoc">Construct a shard store.</div><div class="ttdef"><b>Definition:</b> <a href="DatabaseShard_8h_source.html#l00049">DatabaseShard.h:49</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a376e9e9081ea89d50cc5a15c4ce91cc0"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a376e9e9081ea89d50cc5a15c4ce91cc0">ripple::NodeStore::DatabaseShard::lastLedgerSeq</a></div><div class="ttdeci">virtual std::uint32_t lastLedgerSeq(std::uint32_t shardIndex) const =0</div><div class="ttdoc">Calculates the last ledger sequence for a given shard index.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a244dc1088aa5c92cd08977375e49ce6c"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a244dc1088aa5c92cd08977375e49ce6c">ripple::NodeStore::DatabaseShard::getCompleteShards</a></div><div class="ttdeci">virtual std::string getCompleteShards()=0</div><div class="ttdoc">Query which complete shards are stored.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a4cb31c3ebed3f201bc0cd563666ed3c9"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a4cb31c3ebed3f201bc0cd563666ed3c9">ripple::NodeStore::DatabaseShard::getRootDir</a></div><div class="ttdeci">virtual boost::filesystem::path const & getRootDir() const =0</div><div class="ttdoc">Returns the root database directory.</div></div>
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<div class="ttc" id="aclassripple_1_1base__uint_html"><div class="ttname"><a href="classripple_1_1base__uint.html">ripple::base_uint< 256 ></a></div></div>
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<div class="ttc" id="aclassripple_1_1Stoppable_html"><div class="ttname"><a href="classripple_1_1Stoppable.html">ripple::Stoppable</a></div><div class="ttdoc">Provides an interface for starting and stopping.</div><div class="ttdef"><b>Definition:</b> <a href="Stoppable_8h_source.html#l00200">Stoppable.h:200</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1NodeStore_html_a6b98af8d6a33587b4ad55e3bf079bcda"><div class="ttname"><a href="namespaceripple_1_1NodeStore.html#a6b98af8d6a33587b4ad55e3bf079bcda">ripple::NodeStore::seqToShardIndex</a></div><div class="ttdeci">constexpr std::uint32_t seqToShardIndex(std::uint32_t seq, std::uint32_t ledgersPerShard=DatabaseShard::ledgersPerShardDefault)</div><div class="ttdef"><b>Definition:</b> <a href="DatabaseShard_8h_source.html#l00190">DatabaseShard.h:190</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html">ripple::NodeStore::DatabaseShard</a></div><div class="ttdoc">A collection of historical shards.</div><div class="ttdef"><b>Definition:</b> <a href="DatabaseShard_8h_source.html#l00037">DatabaseShard.h:37</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html"><div class="ttname"><a href="classbeast_1_1Journal.html">beast::Journal</a></div><div class="ttdoc">A generic endpoint for log messages.</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00058">Journal.h:58</a></div></div>
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<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a723fa052936812d4c79bfa9b440b2327"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a723fa052936812d4c79bfa9b440b2327">ripple::NodeStore::DatabaseShard::firstLedgerSeq</a></div><div class="ttdeci">virtual std::uint32_t firstLedgerSeq(std::uint32_t shardIndex) const =0</div><div class="ttdoc">Calculates the first ledger sequence for a given shard index.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1Scheduler_html"><div class="ttname"><a href="classripple_1_1NodeStore_1_1Scheduler.html">ripple::NodeStore::Scheduler</a></div><div class="ttdoc">Scheduling for asynchronous backend activity.</div><div class="ttdef"><b>Definition:</b> <a href="ripple_2nodestore_2Scheduler_8h_source.html#l00057">ripple/nodestore/Scheduler.h:57</a></div></div>
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<div class="ttc" id="amemory_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a02c60dcae61eec37bbe4c64dbabf46d6"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a02c60dcae61eec37bbe4c64dbabf46d6">ripple::NodeStore::DatabaseShard::fetchLedger</a></div><div class="ttdeci">virtual std::shared_ptr< Ledger > fetchLedger(uint256 const &hash, std::uint32_t seq)=0</div><div class="ttdoc">Fetch a ledger from the shard store.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a12b4f6e3c30bc8844edbf0fa421efc2f"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a12b4f6e3c30bc8844edbf0fa421efc2f">ripple::NodeStore::DatabaseShard::ledgersPerShardDefault</a></div><div class="ttdeci">static constexpr std::uint32_t ledgersPerShardDefault</div><div class="ttdoc">The number of ledgers in a shard.</div><div class="ttdef"><b>Definition:</b> <a href="DatabaseShard_8h_source.html#l00186">DatabaseShard.h:186</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_ae86f08a36583502b9050a087c95ba1b6"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#ae86f08a36583502b9050a087c95ba1b6">ripple::NodeStore::DatabaseShard::importShard</a></div><div class="ttdeci">virtual bool importShard(std::uint32_t shardIndex, boost::filesystem::path const &srcDir)=0</div><div class="ttdoc">Import a shard into the shard database.</div></div>
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<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_ad8e8bbb0a357e1d0ac626924dbfe2059"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#ad8e8bbb0a357e1d0ac626924dbfe2059">ripple::NodeStore::DatabaseShard::prepareShard</a></div><div class="ttdeci">virtual bool prepareShard(std::uint32_t shardIndex)=0</div><div class="ttdoc">Prepare a shard index to be imported into the database.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a9ac112f923d4db1db4bf3a52711aab12"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a9ac112f923d4db1db4bf3a52711aab12">ripple::NodeStore::DatabaseShard::setStored</a></div><div class="ttdeci">virtual void setStored(std::shared_ptr< Ledger const > const &ledger)=0</div><div class="ttdoc">Notifies the database that the given ledger has been fully acquired and stored.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a2532e82d6e564cc5c186a23c4e848de0"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a2532e82d6e564cc5c186a23c4e848de0">ripple::NodeStore::DatabaseShard::getPreShards</a></div><div class="ttdeci">virtual std::string getPreShards()=0</div><div class="ttdoc">Get shard indexes being imported.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a620a17c7b2a6ca4a05c79a1f6637abca"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a620a17c7b2a6ca4a05c79a1f6637abca">ripple::NodeStore::DatabaseShard::init</a></div><div class="ttdeci">virtual bool init()=0</div><div class="ttdoc">Initialize the database.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a98859a0327f85b03a0543aef924401fa"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a98859a0327f85b03a0543aef924401fa">ripple::NodeStore::DatabaseShard::prepareLedger</a></div><div class="ttdeci">virtual boost::optional< std::uint32_t > prepareLedger(std::uint32_t validLedgerSeq)=0</div><div class="ttdoc">Prepare to store a new ledger in the shard being acquired.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_ac76952eab18b405647fb06f599f3fb23"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#ac76952eab18b405647fb06f599f3fb23">ripple::NodeStore::DatabaseShard::validate</a></div><div class="ttdeci">virtual void validate()=0</div><div class="ttdoc">Verifies shard store data is valid.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a435483044cad610e25db707999b4544a"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a435483044cad610e25db707999b4544a">ripple::NodeStore::DatabaseShard::removePreShard</a></div><div class="ttdeci">virtual void removePreShard(std::uint32_t shardIndex)=0</div><div class="ttdoc">Remove a previously prepared shard index for import.</div></div>
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<div class="ttc" id="aunique_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="aclassripple_1_1NodeStore_1_1DatabaseShard_html_a41cdfc11611d60733f42c72cfa684bed"><div class="ttname"><a href="classripple_1_1NodeStore_1_1DatabaseShard.html#a41cdfc11611d60733f42c72cfa684bed">ripple::NodeStore::DatabaseShard::ledgersPerShard</a></div><div class="ttdeci">virtual std::uint32_t ledgersPerShard() const =0</div></div>
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