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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_b003f5a72efe503c7552f86021e0c4d2.html">overlay</a></li><li class="navelem"><a class="el" href="dir_3d31096116cb07f2d03f31d101bf2478.html">impl</a></li> </ul>
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<div class="title">PeerReservationTable.cpp</div> </div>
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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) 2019 Ripple Labs Inc.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <ripple/overlay/PeerReservationTable.h></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <ripple/basics/Log.h></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <ripple/core/DatabaseCon.h></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <ripple/json/json_value.h></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <ripple/protocol/PublicKey.h></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <ripple/protocol/jss.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/algorithm.html">algorithm</a>></span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a>></span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a>></span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/string.html">string</a>></span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a>></span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">auto</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="structripple_1_1PeerReservation.html#aa9876a2a4c21a9c36b87aa71cfb60b51"> 39</a></span> <a class="code" href="structripple_1_1PeerReservation.html#aa9876a2a4c21a9c36b87aa71cfb60b51">PeerReservation::toJson</a>() const -> <a class="code" href="namespaceJson.html">Json</a>::Value</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="classJson_1_1Value.html">Json::Value</a> result{<a class="code" href="namespaceJson.html#a7d654b75c16a57007925868e38212b4eae8386dcfc36d1ae897745f7b4f77a1f6">Json::objectValue</a>};</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  result[jss::node] = <a class="code" href="namespaceripple.html#a08a13b62b18272366f788632359e8793">toBase58</a>(<a class="code" href="namespaceripple.html#a1bf8df553d36589191c8057c136cce03ac3fe5edb1f8a81a8e585f6a27c120be6">TokenType::NodePublic</a>, <a class="code" href="structripple_1_1PeerReservation.html#a10651ffa57f97348d21d5025506b80c0">nodeId</a>);</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span> (!<a class="code" href="structripple_1_1PeerReservation.html#accd61c843c1698e4296f3c489ef9f9fa">description</a>.<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/empty.html">empty</a>())</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  result[jss::description] = <a class="code" href="structripple_1_1PeerReservation.html#accd61c843c1698e4296f3c489ef9f9fa">description</a>;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> }</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">auto</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475"> 51</a></span> <a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">PeerReservationTable::list</a>() const -> <a class="code" href="namespacestd.html">std</a>::vector<<a class="code" href="structripple_1_1PeerReservation.html">PeerReservation</a>></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<PeerReservation></a> <a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">list</a>;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <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_1PeerReservationTable.html#adf2c2218edfa8006026e49e0c2345dc9">mutex_</a>);</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">list</a>.reserve(<a class="code" href="classripple_1_1PeerReservationTable.html#a7a24a50cab3b44c7842d6a03a3c07e63">table_</a>.size());</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/copy.html">std::copy</a>(<a class="code" href="classripple_1_1PeerReservationTable.html#a7a24a50cab3b44c7842d6a03a3c07e63">table_</a>.begin(), <a class="code" href="classripple_1_1PeerReservationTable.html#a7a24a50cab3b44c7842d6a03a3c07e63">table_</a>.end(), <a class="codeRef" href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a>(<a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">list</a>));</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>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/sort.html">std::sort</a>(<a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">list</a>.begin(), <a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">list</a>.end());</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> <a class="code" href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">list</a>;</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// See `ripple/app/main/DBInit.cpp` for the `CREATE TABLE` statement.</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// It is unfortunate that we do not get to define a function for it.</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// We choose a `bool` return type to fit in with the error handling scheme</span></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// of other functions called from `ApplicationImp::setup`, but we always</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// return "no error" (`true`) because we can always return an empty table.</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">bool</span></div>
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<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classripple_1_1PeerReservationTable.html#a9a6fc4cc792f884ab4ff94ef1999cdcb"> 70</a></span> <a class="code" href="classripple_1_1PeerReservationTable.html#a9a6fc4cc792f884ab4ff94ef1999cdcb">PeerReservationTable::load</a>(<a class="code" href="classripple_1_1DatabaseCon.html">DatabaseCon</a>& connection)</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <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_1PeerReservationTable.html#adf2c2218edfa8006026e49e0c2345dc9">mutex_</a>);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="classripple_1_1PeerReservationTable.html#ab72fe64226e4e93c9e21d4815fd8ce69">connection_</a> = &connection;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">auto</span> db = <a class="code" href="classripple_1_1PeerReservationTable.html#ab72fe64226e4e93c9e21d4815fd8ce69">connection_</a>-><a class="code" href="classripple_1_1DatabaseCon.html#a16c6f729c6462f6200b724543f5c67bc">checkoutDb</a>();</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  boost::optional<std::string> valPubKey, valDesc;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// We should really abstract the table and column names into constants,</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// but no one else does. Because it is too tedious? It would be easy if we</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// had a jOOQ for C++.</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  soci::statement st =</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  (db->prepare << <span class="stringliteral">"SELECT PublicKey, Description FROM PeerReservations;"</span>,</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  soci::into(valPubKey),</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  soci::into(valDesc));</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  st.execute();</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">while</span> (st.fetch())</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (!valPubKey || !valDesc)</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// This represents a `NULL` in a `NOT NULL` column. It should be</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// unreachable.</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">auto</span> <span class="keyword">const</span> optNodeId =</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  parseBase58<PublicKey>(<a class="code" href="namespaceripple.html#a1bf8df553d36589191c8057c136cce03ac3fe5edb1f8a81a8e585f6a27c120be6">TokenType::NodePublic</a>, *valPubKey);</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> (!optNodeId)</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  {</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  JLOG(<a class="code" href="classripple_1_1PeerReservationTable.html#ad3cc1125e1261ca40c19c3e1ec4ca4e3">journal_</a>.<a class="code" href="classbeast_1_1Journal.html#ad8fefe3e8ad583e1ed1bf02094ac3d8f">warn</a>()) << <span class="stringliteral">"load: not a public key: "</span> << valPubKey;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">continue</span>;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="classripple_1_1PeerReservationTable.html#a7a24a50cab3b44c7842d6a03a3c07e63">table_</a>.insert(<a class="code" href="structripple_1_1PeerReservation.html">PeerReservation</a>{*optNodeId, *valDesc});</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> }</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">auto</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classripple_1_1PeerReservationTable.html#a9af0f18b3a4fe658d70d48adee578486"> 108</a></span> <a class="code" href="classripple_1_1PeerReservationTable.html#a9af0f18b3a4fe658d70d48adee578486">PeerReservationTable::insert_or_assign</a>(<a class="code" href="structripple_1_1PeerReservation.html">PeerReservation</a> <span class="keyword">const</span>& reservation)</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  -> boost::optional<PeerReservation></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> {</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  boost::optional<PeerReservation> previous;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(mutex_);</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="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">auto</span> hint = table_.find(reservation);</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (hint != table_.end())</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// The node already has a reservation. Remove it.</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// `std::unordered_set` does not have an `insert_or_assign` method,</span></div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// and sadly makes it impossible for us to implement one efficiently:</span></div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// https://stackoverflow.com/q/49651835/618906</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// Regardless, we don't expect this function to be called often, or</span></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// for the table to be very large, so this less-than-ideal</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// remove-then-insert is acceptable in order to present a better API.</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  previous = *hint;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// We should pick an adjacent location for the insertion hint.</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Decrementing may be illegal if the found reservation is at the</span></div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// beginning. Incrementing is always legal; at worst we'll point to</span></div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// the end.</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">auto</span> <span class="keyword">const</span> deleteme = hint;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  ++hint;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  table_.erase(deleteme);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  table_.insert(hint, reservation);</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  </div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">auto</span> db = connection_->checkoutDb();</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  *db << <span class="stringliteral">"INSERT INTO PeerReservations (PublicKey, Description) "</span></div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="stringliteral">"VALUES (:nodeId, :desc) "</span></div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="stringliteral">"ON CONFLICT (PublicKey) DO UPDATE SET "</span></div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="stringliteral">"Description=excluded.Description"</span>,</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  soci::use(<a class="code" href="namespaceripple.html#a08a13b62b18272366f788632359e8793">toBase58</a>(<a class="code" href="namespaceripple.html#a1bf8df553d36589191c8057c136cce03ac3fe5edb1f8a81a8e585f6a27c120be6">TokenType::NodePublic</a>, reservation.nodeId)),</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  soci::use(reservation.description);</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  </div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> previous;</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="l00146"></a><span class="lineno"> 146</span>  </div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="keyword">auto</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="classripple_1_1PeerReservationTable.html#a5fc9c193fca712738b0f850689dd4d17"> 148</a></span> <a class="code" href="classripple_1_1PeerReservationTable.html#a5fc9c193fca712738b0f850689dd4d17">PeerReservationTable::erase</a>(<a class="code" href="classripple_1_1PublicKey.html">PublicKey</a> <span class="keyword">const</span>& nodeId)</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  -> boost::optional<PeerReservation></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> {</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  boost::optional<PeerReservation> previous;</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  </div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(mutex_);</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">auto</span> <span class="keyword">const</span> it = table_.find({nodeId});</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span> (it != table_.end())</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  {</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  previous = *it;</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  table_.erase(it);</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">auto</span> db = connection_->checkoutDb();</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  *db << <span class="stringliteral">"DELETE FROM PeerReservations WHERE PublicKey = :nodeId"</span>,</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  soci::use(<a class="code" href="namespaceripple.html#a08a13b62b18272366f788632359e8793">toBase58</a>(<a class="code" href="namespaceripple.html#a1bf8df553d36589191c8057c136cce03ac3fe5edb1f8a81a8e585f6a27c120be6">TokenType::NodePublic</a>, nodeId));</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="l00164"></a><span class="lineno"> 164</span>  </div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">return</span> previous;</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> }</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> } <span class="comment">// namespace ripple</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_a7a24a50cab3b44c7842d6a03a3c07e63"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#a7a24a50cab3b44c7842d6a03a3c07e63">ripple::PeerReservationTable::table_</a></div><div class="ttdeci">std::unordered_set< PeerReservation, beast::uhash<>, KeyEqual > table_</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00121">PeerReservationTable.h:121</a></div></div>
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<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a></div></div>
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<div class="ttc" id="aback_inserter_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a></div><div class="ttdeci">T back_inserter(T... args)</div></div>
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<div class="ttc" id="aiterator_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a></div></div>
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<div class="ttc" id="anamespaceripple_html_a08a13b62b18272366f788632359e8793"><div class="ttname"><a href="namespaceripple.html#a08a13b62b18272366f788632359e8793">ripple::toBase58</a></div><div class="ttdeci">std::string toBase58(AccountID const &v)</div><div class="ttdoc">Convert AccountID to base58 checked string.</div><div class="ttdef"><b>Definition:</b> <a href="AccountID_8cpp_source.html#l00029">AccountID.cpp:29</a></div></div>
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<div class="ttc" id="aclassbeast_1_1Journal_html_ad8fefe3e8ad583e1ed1bf02094ac3d8f"><div class="ttname"><a href="classbeast_1_1Journal.html#ad8fefe3e8ad583e1ed1bf02094ac3d8f">beast::Journal::warn</a></div><div class="ttdeci">Stream warn() const</div><div class="ttdef"><b>Definition:</b> <a href="Journal_8h_source.html#l00327">Journal.h:327</a></div></div>
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<div class="ttc" id="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>
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_ab72fe64226e4e93c9e21d4815fd8ce69"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#ab72fe64226e4e93c9e21d4815fd8ce69">ripple::PeerReservationTable::connection_</a></div><div class="ttdeci">DatabaseCon * connection_</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00120">PeerReservationTable.h:120</a></div></div>
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<div class="ttc" id="astructripple_1_1PeerReservation_html_aa9876a2a4c21a9c36b87aa71cfb60b51"><div class="ttname"><a href="structripple_1_1PeerReservation.html#aa9876a2a4c21a9c36b87aa71cfb60b51">ripple::PeerReservation::toJson</a></div><div class="ttdeci">auto toJson() const -> Json::Value</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8cpp_source.html#l00039">PeerReservationTable.cpp:39</a></div></div>
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<div class="ttc" id="asort_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/sort.html">std::sort</a></div><div class="ttdeci">T sort(T... args)</div></div>
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<div class="ttc" id="aalgorithm_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a></div></div>
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_a5fc9c193fca712738b0f850689dd4d17"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#a5fc9c193fca712738b0f850689dd4d17">ripple::PeerReservationTable::erase</a></div><div class="ttdeci">auto erase(PublicKey const &nodeId) -> boost::optional< PeerReservation ></div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8cpp_source.html#l00148">PeerReservationTable.cpp:148</a></div></div>
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<div class="ttc" id="anamespaceJson_html"><div class="ttname"><a href="namespaceJson.html">Json</a></div><div class="ttdoc">JSON (JavaScript Object Notation).</div><div class="ttdef"><b>Definition:</b> <a href="json__reader_8cpp_source.html#l00027">json_reader.cpp:27</a></div></div>
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<div class="ttc" id="aclassripple_1_1DatabaseCon_html_a16c6f729c6462f6200b724543f5c67bc"><div class="ttname"><a href="classripple_1_1DatabaseCon.html#a16c6f729c6462f6200b724543f5c67bc">ripple::DatabaseCon::checkoutDb</a></div><div class="ttdeci">LockedSociSession checkoutDb()</div><div class="ttdef"><b>Definition:</b> <a href="DatabaseCon_8h_source.html#l00178">DatabaseCon.h:178</a></div></div>
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<div class="ttc" id="anamespaceJson_html_a7d654b75c16a57007925868e38212b4eae8386dcfc36d1ae897745f7b4f77a1f6"><div class="ttname"><a href="namespaceJson.html#a7d654b75c16a57007925868e38212b4eae8386dcfc36d1ae897745f7b4f77a1f6">Json::objectValue</a></div><div class="ttdeci">@ objectValue</div><div class="ttdoc">object value (collection of name/value pairs).</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8h_source.html#l00043">json_value.h:43</a></div></div>
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<div class="ttc" id="astructripple_1_1PeerReservation_html_a10651ffa57f97348d21d5025506b80c0"><div class="ttname"><a href="structripple_1_1PeerReservation.html#a10651ffa57f97348d21d5025506b80c0">ripple::PeerReservation::nodeId</a></div><div class="ttdeci">PublicKey nodeId</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00046">PeerReservationTable.h:46</a></div></div>
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_ad3cc1125e1261ca40c19c3e1ec4ca4e3"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#ad3cc1125e1261ca40c19c3e1ec4ca4e3">ripple::PeerReservationTable::journal_</a></div><div class="ttdeci">beast::Journal journal_</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00118">PeerReservationTable.h:118</a></div></div>
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<div class="ttc" id="aclassripple_1_1PublicKey_html"><div class="ttname"><a href="classripple_1_1PublicKey.html">ripple::PublicKey</a></div><div class="ttdoc">A public key.</div><div class="ttdef"><b>Definition:</b> <a href="PublicKey_8h_source.html#l00059">PublicKey.h:59</a></div></div>
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<div class="ttc" id="acopy_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/copy.html">std::copy</a></div><div class="ttdeci">T copy(T... args)</div></div>
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<div class="ttc" id="astructripple_1_1PeerReservation_html"><div class="ttname"><a href="structripple_1_1PeerReservation.html">ripple::PeerReservation</a></div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00043">PeerReservationTable.h:43</a></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_1PeerReservationTable_html_adf2c2218edfa8006026e49e0c2345dc9"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#adf2c2218edfa8006026e49e0c2345dc9">ripple::PeerReservationTable::mutex_</a></div><div class="ttdeci">std::mutex mutex_</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00119">PeerReservationTable.h:119</a></div></div>
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_a77e9fa92a8c49eb82d5249433c19c475"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#a77e9fa92a8c49eb82d5249433c19c475">ripple::PeerReservationTable::list</a></div><div class="ttdeci">std::vector< PeerReservation > list() const</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8cpp_source.html#l00051">PeerReservationTable.cpp:51</a></div></div>
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<div class="ttc" id="anamespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdoc">STL namespace.</div></div>
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<div class="ttc" id="aclassripple_1_1DatabaseCon_html"><div class="ttname"><a href="classripple_1_1DatabaseCon.html">ripple::DatabaseCon</a></div><div class="ttdef"><b>Definition:</b> <a href="DatabaseCon_8h_source.html#l00081">DatabaseCon.h:81</a></div></div>
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<div class="ttc" id="aempty_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/empty.html">std::string::empty</a></div><div class="ttdeci">T empty(T... args)</div></div>
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<div class="ttc" id="anamespaceripple_html_a1bf8df553d36589191c8057c136cce03ac3fe5edb1f8a81a8e585f6a27c120be6"><div class="ttname"><a href="namespaceripple.html#a1bf8df553d36589191c8057c136cce03ac3fe5edb1f8a81a8e585f6a27c120be6">ripple::TokenType::NodePublic</a></div><div class="ttdeci">@ NodePublic</div></div>
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<div class="ttc" id="amutex_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a></div></div>
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<div class="ttc" id="astructripple_1_1PeerReservation_html_accd61c843c1698e4296f3c489ef9f9fa"><div class="ttname"><a href="structripple_1_1PeerReservation.html#accd61c843c1698e4296f3c489ef9f9fa">ripple::PeerReservation::description</a></div><div class="ttdeci">std::string description</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8h_source.html#l00047">PeerReservationTable.h:47</a></div></div>
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_a9af0f18b3a4fe658d70d48adee578486"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#a9af0f18b3a4fe658d70d48adee578486">ripple::PeerReservationTable::insert_or_assign</a></div><div class="ttdeci">auto insert_or_assign(PeerReservation const &reservation) -> boost::optional< PeerReservation ></div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8cpp_source.html#l00108">PeerReservationTable.cpp:108</a></div></div>
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<div class="ttc" id="aclassripple_1_1PeerReservationTable_html_a9a6fc4cc792f884ab4ff94ef1999cdcb"><div class="ttname"><a href="classripple_1_1PeerReservationTable.html#a9a6fc4cc792f884ab4ff94ef1999cdcb">ripple::PeerReservationTable::load</a></div><div class="ttdeci">bool load(DatabaseCon &connection)</div><div class="ttdef"><b>Definition:</b> <a href="PeerReservationTable_8cpp_source.html#l00070">PeerReservationTable.cpp:70</a></div></div>
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<div class="ttc" id="aclassJson_1_1Value_html"><div class="ttname"><a href="classJson_1_1Value.html">Json::Value</a></div><div class="ttdoc">Represents a JSON value.</div><div class="ttdef"><b>Definition:</b> <a href="json__value_8h_source.html#l00145">json_value.h:145</a></div></div>
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<div class="ttc" id="astring_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/string.html">string</a></div></div>
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