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<div class="title">dbwrapper.cpp</div> </div>
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<a href="dbwrapper_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright (c) 2012-2015 The Bitcoin Core developers</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Distributed under the MIT software license, see the accompanying</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// file COPYING or http://www.opensource.org/licenses/mit-license.php.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="dbwrapper_8h.html">dbwrapper.h</a>&quot;</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="util_8h.html">util.h</a>&quot;</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="random_8h.html">random.h</a>&quot;</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;boost/filesystem.hpp&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;leveldb/cache.h&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &lt;leveldb/env.h&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &lt;leveldb/filter_policy.h&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &lt;memenv.h&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div><div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="dbwrapper_8h.html#aea36eb5fddb6266b14ea8cb15e183486"> 18</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="dbwrapper_8cpp.html#aea36eb5fddb6266b14ea8cb15e183486">HandleError</a>(<span class="keyword">const</span> leveldb::Status&amp; status) <span class="keywordflow">throw</span>(<a class="code" href="classdbwrapper__error.html">dbwrapper_error</a>)</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="keywordflow">if</span> (status.ok())</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">&quot;%s\n&quot;</span>, status.ToString());</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keywordflow">if</span> (status.IsCorruption())</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classdbwrapper__error.html">dbwrapper_error</a>(<span class="stringliteral">&quot;Database corrupted&quot;</span>);</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="keywordflow">if</span> (status.IsIOError())</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classdbwrapper__error.html">dbwrapper_error</a>(<span class="stringliteral">&quot;Database I/O error&quot;</span>);</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keywordflow">if</span> (status.IsNotFound())</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classdbwrapper__error.html">dbwrapper_error</a>(<span class="stringliteral">&quot;Database entry missing&quot;</span>);</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classdbwrapper__error.html">dbwrapper_error</a>(<span class="stringliteral">&quot;Unknown database error&quot;</span>);</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;}</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"><a class="line" href="dbwrapper_8cpp.html#a22453a46b88c4e759768bbc1452049de"> 32</a></span>&#160;<span class="keyword">static</span> leveldb::Options <a class="code" href="dbwrapper_8cpp.html#a22453a46b88c4e759768bbc1452049de">GetOptions</a>(<span class="keywordtype">size_t</span> nCacheSize)</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;{</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; leveldb::Options options;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; options.block_cache = leveldb::NewLRUCache(nCacheSize / 2);</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; options.write_buffer_size = nCacheSize / 4; <span class="comment">// up to two write buffers may be held in memory simultaneously</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; options.filter_policy = leveldb::NewBloomFilterPolicy(10);</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; options.compression = leveldb::kNoCompression;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; options.max_open_files = 64;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">if</span> (leveldb::kMajorVersion &gt; 1 || (leveldb::kMajorVersion == 1 &amp;&amp; leveldb::kMinorVersion &gt;= 16)) {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="comment">// LevelDB versions before 1.16 consider short writes to be corruption. Only trigger error</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="comment">// on corruption in later versions.</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; options.paranoid_checks = <span class="keyword">true</span>;</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="keywordflow">return</span> options;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;}</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#a196335b21f6416e63acc5be8c747b7db"> 48</a></span>&#160;<a class="code" href="classCDBWrapper.html#a196335b21f6416e63acc5be8c747b7db">CDBWrapper::CDBWrapper</a>(<span class="keyword">const</span> boost::filesystem::path&amp; path, <span class="keywordtype">size_t</span> nCacheSize, <span class="keywordtype">bool</span> fMemory, <span class="keywordtype">bool</span> fWipe, <span class="keywordtype">bool</span> obfuscate)</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;{</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <a class="code" href="classCDBWrapper.html#a35d77fd25139ca46b82be7cd9f9f43c6">penv</a> = NULL;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <a class="code" href="classCDBWrapper.html#afb339cf3fd16de13f20217e4c475c79e">readoptions</a>.verify_checksums = <span class="keyword">true</span>;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <a class="code" href="classCDBWrapper.html#adb9487dea70007f9a85d2bb5a2b09608">iteroptions</a>.verify_checksums = <span class="keyword">true</span>;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <a class="code" href="classCDBWrapper.html#adb9487dea70007f9a85d2bb5a2b09608">iteroptions</a>.fill_cache = <span class="keyword">false</span>;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <a class="code" href="classCDBWrapper.html#aac0086b6867ab79acc706f93a2908de0">syncoptions</a>.sync = <span class="keyword">true</span>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a> = <a class="code" href="dbwrapper_8cpp.html#a22453a46b88c4e759768bbc1452049de">GetOptions</a>(nCacheSize);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.create_if_missing = <span class="keyword">true</span>;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordflow">if</span> (fMemory) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <a class="code" href="classCDBWrapper.html#a35d77fd25139ca46b82be7cd9f9f43c6">penv</a> = leveldb::NewMemEnv(leveldb::Env::Default());</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.env = <a class="code" href="classCDBWrapper.html#a35d77fd25139ca46b82be7cd9f9f43c6">penv</a>;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keywordflow">if</span> (fWipe) {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">&quot;Wiping LevelDB in %s\n&quot;</span>, path.string());</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; leveldb::Status <a class="code" href="namespacerpcuser.html#a637791b4450c02d511291cd297ce12df">result</a> = leveldb::DestroyDB(path.string(), <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <a class="code" href="dbwrapper_8cpp.html#aea36eb5fddb6266b14ea8cb15e183486">HandleError</a>(<a class="code" href="namespacerpcuser.html#a637791b4450c02d511291cd297ce12df">result</a>);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <a class="code" href="util_8cpp.html#a4458ca67cacd593b21c8e1386d192064">TryCreateDirectory</a>(path);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">&quot;Opening LevelDB in %s\n&quot;</span>, path.string());</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"> 69</span>&#160; leveldb::Status status = leveldb::DB::Open(<a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>, path.string(), &amp;<a class="code" href="classCDBWrapper.html#ace0085a1acbdd70330cd3cee562fd099">pdb</a>);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <a class="code" href="dbwrapper_8cpp.html#aea36eb5fddb6266b14ea8cb15e183486">HandleError</a>(status);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">&quot;Opened LevelDB successfully\n&quot;</span>);</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"> 73</span>&#160; <span class="comment">// The base-case obfuscation key, which is a noop.</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <a class="code" href="classCDBWrapper.html#a6baaceaa7825b0adfc078c59fddd0f1c">obfuscate_key</a> = std::vector&lt;unsigned char&gt;(<a class="code" href="classCDBWrapper.html#a958103a454c991c03dd0efb7bf3a10cf">OBFUSCATE_KEY_NUM_BYTES</a>, <span class="charliteral">&#39;\000&#39;</span>);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordtype">bool</span> key_exists = <a class="code" href="classCDBWrapper.html#a38084dd7b2870e6ac3082e7521d88a29">Read</a>(<a class="code" href="classCDBWrapper.html#a991c2ad52d45664e17bcfc588022e71c">OBFUSCATE_KEY_KEY</a>, <a class="code" href="classCDBWrapper.html#a6baaceaa7825b0adfc078c59fddd0f1c">obfuscate_key</a>);</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; <span class="keywordflow">if</span> (!key_exists &amp;&amp; obfuscate &amp;&amp; <a class="code" href="classCDBWrapper.html#aec1b8db7dc13b64ba599ddb8141118ca">IsEmpty</a>()) {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="comment">// Initialize non-degenerate obfuscation if it won&#39;t upset</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="comment">// existing, non-obfuscated data.</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; std::vector&lt;unsigned char&gt; new_key = <a class="code" href="classCDBWrapper.html#ad1b9f0d554cd7e62d2789b7d3fca753a">CreateObfuscateKey</a>();</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"> 83</span>&#160; <span class="comment">// Write `new_key` so we don&#39;t obfuscate the key with itself</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="classCDBWrapper.html#a6600aa8c2b30880dd7e032ea21f74aed">Write</a>(<a class="code" href="classCDBWrapper.html#a991c2ad52d45664e17bcfc588022e71c">OBFUSCATE_KEY_KEY</a>, new_key);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <a class="code" href="classCDBWrapper.html#a6baaceaa7825b0adfc078c59fddd0f1c">obfuscate_key</a> = new_key;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">&quot;Wrote new obfuscate key for %s: %s\n&quot;</span>, path.string(), <a class="code" href="classCDBWrapper.html#ab3b23518d0fe232794d23bd8e43bc15d">GetObfuscateKeyHex</a>());</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;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <a class="code" href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a>(<span class="stringliteral">&quot;Using obfuscation key for %s: %s\n&quot;</span>, path.string(), <a class="code" href="classCDBWrapper.html#ab3b23518d0fe232794d23bd8e43bc15d">GetObfuscateKeyHex</a>());</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;}</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#aa20c87d7d2e57782b628cc50678dad32"> 93</a></span>&#160;<a class="code" href="classCDBWrapper.html#aa20c87d7d2e57782b628cc50678dad32">CDBWrapper::~CDBWrapper</a>()</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;{</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keyword">delete</span> <a class="code" href="classCDBWrapper.html#ace0085a1acbdd70330cd3cee562fd099">pdb</a>;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <a class="code" href="classCDBWrapper.html#ace0085a1acbdd70330cd3cee562fd099">pdb</a> = NULL;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keyword">delete</span> <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.filter_policy;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.filter_policy = NULL;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keyword">delete</span> <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.block_cache;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.block_cache = NULL;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keyword">delete</span> <a class="code" href="classCDBWrapper.html#a35d77fd25139ca46b82be7cd9f9f43c6">penv</a>;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <a class="code" href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">options</a>.env = NULL;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;}</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#a3624c2e99b0d4e9a4edc679b304fa180"> 105</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classCDBWrapper.html#a3624c2e99b0d4e9a4edc679b304fa180">CDBWrapper::WriteBatch</a>(<a class="code" href="classCDBBatch.html">CDBBatch</a>&amp; batch, <span class="keywordtype">bool</span> fSync) <span class="keywordflow">throw</span>(<a class="code" href="classdbwrapper__error.html">dbwrapper_error</a>)</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;{</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; leveldb::Status status = pdb-&gt;Write(fSync ? syncoptions : writeoptions, &amp;batch.batch);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <a class="code" href="dbwrapper_8cpp.html#aea36eb5fddb6266b14ea8cb15e183486">HandleError</a>(status);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;}</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;<span class="comment">// Prefixed with null character to avoid collisions with other keys</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;<span class="comment">// We must use a string constructor which specifies length so that we copy</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment">// past the null-terminator.</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;<span class="keyword">const</span> std::string <a class="code" href="classCDBWrapper.html#a991c2ad52d45664e17bcfc588022e71c">CDBWrapper::OBFUSCATE_KEY_KEY</a>(<span class="stringliteral">&quot;\000obfuscate_key&quot;</span>, 14);</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="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classCDBWrapper.html#a958103a454c991c03dd0efb7bf3a10cf">CDBWrapper::OBFUSCATE_KEY_NUM_BYTES</a> = 8;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div><div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#ad1b9f0d554cd7e62d2789b7d3fca753a"> 124</a></span>&#160;std::vector&lt;unsigned char&gt; <a class="code" href="classCDBWrapper.html#ad1b9f0d554cd7e62d2789b7d3fca753a">CDBWrapper::CreateObfuscateKey</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buff[<a class="code" href="classCDBWrapper.html#a958103a454c991c03dd0efb7bf3a10cf">OBFUSCATE_KEY_NUM_BYTES</a>];</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <a class="code" href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a>(buff, <a class="code" href="classCDBWrapper.html#a958103a454c991c03dd0efb7bf3a10cf">OBFUSCATE_KEY_NUM_BYTES</a>);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> std::vector&lt;unsigned char&gt;(&amp;buff[0], &amp;buff[<a class="code" href="classCDBWrapper.html#a958103a454c991c03dd0efb7bf3a10cf">OBFUSCATE_KEY_NUM_BYTES</a>]);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;}</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#aec1b8db7dc13b64ba599ddb8141118ca"> 132</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classCDBWrapper.html#aec1b8db7dc13b64ba599ddb8141118ca">CDBWrapper::IsEmpty</a>()</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; boost::scoped_ptr&lt;CDBIterator&gt; it(<a class="code" href="classCDBWrapper.html#a086e9b6d6756642cb5d60778ea948c8f">NewIterator</a>());</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; it-&gt;SeekToFirst();</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">return</span> !(it-&gt;Valid());</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;}</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#a87dba4369a5444d490998c6f57e6d2ba"> 139</a></span>&#160;<span class="keyword">const</span> std::vector&lt;unsigned char&gt;&amp; <a class="code" href="classCDBWrapper.html#a87dba4369a5444d490998c6f57e6d2ba">CDBWrapper::GetObfuscateKey</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="classCDBWrapper.html#a6baaceaa7825b0adfc078c59fddd0f1c">obfuscate_key</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="l00144"></a><span class="lineno"><a class="line" href="classCDBWrapper.html#ab3b23518d0fe232794d23bd8e43bc15d"> 144</a></span>&#160;std::string <a class="code" href="classCDBWrapper.html#ab3b23518d0fe232794d23bd8e43bc15d">CDBWrapper::GetObfuscateKeyHex</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">return</span> <a class="code" href="utilstrencodings_8h.html#ace13a819ca4e98c22847d26b3b357e75">HexStr</a>(<a class="code" href="classCDBWrapper.html#a6baaceaa7825b0adfc078c59fddd0f1c">obfuscate_key</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;</div><div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="classCDBIterator.html#ac9d995e53f1373af61020afbb45220a7"> 149</a></span>&#160;<a class="code" href="classCDBIterator.html#ac9d995e53f1373af61020afbb45220a7">CDBIterator::~CDBIterator</a>() { <span class="keyword">delete</span> <a class="code" href="classCDBIterator.html#a996368b2965a7ca436c24eeb39ed2c53">piter</a>; }</div><div class="line"><a name="l00150"></a><span class="lineno"><a class="line" href="classCDBIterator.html#a3932e778e9f67ff18b443ba6ac8b8010"> 150</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classCDBIterator.html#a3932e778e9f67ff18b443ba6ac8b8010">CDBIterator::Valid</a>() { <span class="keywordflow">return</span> <a class="code" href="classCDBIterator.html#a996368b2965a7ca436c24eeb39ed2c53">piter</a>-&gt;Valid(); }</div><div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="classCDBIterator.html#ac2528733670e679f79011c347ff01f1c"> 151</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classCDBIterator.html#ac2528733670e679f79011c347ff01f1c">CDBIterator::SeekToFirst</a>() { <a class="code" href="classCDBIterator.html#a996368b2965a7ca436c24eeb39ed2c53">piter</a>-&gt;SeekToFirst(); }</div><div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="classCDBIterator.html#acf9f90746acc8305a8b6785f72a1a1a6"> 152</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classCDBIterator.html#acf9f90746acc8305a8b6785f72a1a1a6">CDBIterator::Next</a>() { <a class="code" href="classCDBIterator.html#a996368b2965a7ca436c24eeb39ed2c53">piter</a>-&gt;Next(); }</div><div class="ttc" id="classCDBWrapper_html_a35d77fd25139ca46b82be7cd9f9f43c6"><div class="ttname"><a href="classCDBWrapper.html#a35d77fd25139ca46b82be7cd9f9f43c6">CDBWrapper::penv</a></div><div class="ttdeci">leveldb::Env * penv</div><div class="ttdoc">custom environment this database is using (may be NULL in case of default environment) ...</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00139">dbwrapper.h:139</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a958103a454c991c03dd0efb7bf3a10cf"><div class="ttname"><a href="classCDBWrapper.html#a958103a454c991c03dd0efb7bf3a10cf">CDBWrapper::OBFUSCATE_KEY_NUM_BYTES</a></div><div class="ttdeci">static const unsigned int OBFUSCATE_KEY_NUM_BYTES</div><div class="ttdoc">the length of the obfuscate key in number of bytes </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00166">dbwrapper.h:166</a></div></div>
<div class="ttc" id="classCDBIterator_html_a3932e778e9f67ff18b443ba6ac8b8010"><div class="ttname"><a href="classCDBIterator.html#a3932e778e9f67ff18b443ba6ac8b8010">CDBIterator::Valid</a></div><div class="ttdeci">bool Valid()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00150">dbwrapper.cpp:150</a></div></div>
<div class="ttc" id="classCDBIterator_html_acf9f90746acc8305a8b6785f72a1a1a6"><div class="ttname"><a href="classCDBIterator.html#acf9f90746acc8305a8b6785f72a1a1a6">CDBIterator::Next</a></div><div class="ttdeci">void Next()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00152">dbwrapper.cpp:152</a></div></div>
<div class="ttc" id="utilstrencodings_8h_html_ace13a819ca4e98c22847d26b3b357e75"><div class="ttname"><a href="utilstrencodings_8h.html#ace13a819ca4e98c22847d26b3b357e75">HexStr</a></div><div class="ttdeci">std::string HexStr(const T itbegin, const T itend, bool fSpaces=false)</div><div class="ttdef"><b>Definition:</b> <a href="utilstrencodings_8h_source.html#l00081">utilstrencodings.h:81</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a991c2ad52d45664e17bcfc588022e71c"><div class="ttname"><a href="classCDBWrapper.html#a991c2ad52d45664e17bcfc588022e71c">CDBWrapper::OBFUSCATE_KEY_KEY</a></div><div class="ttdeci">static const std::string OBFUSCATE_KEY_KEY</div><div class="ttdoc">the key under which the obfuscation key is stored </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00163">dbwrapper.h:163</a></div></div>
<div class="ttc" id="classCDBWrapper_html_ace0085a1acbdd70330cd3cee562fd099"><div class="ttname"><a href="classCDBWrapper.html#ace0085a1acbdd70330cd3cee562fd099">CDBWrapper::pdb</a></div><div class="ttdeci">leveldb::DB * pdb</div><div class="ttdoc">the database itself </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00157">dbwrapper.h:157</a></div></div>
<div class="ttc" id="classCDBIterator_html_ac9d995e53f1373af61020afbb45220a7"><div class="ttname"><a href="classCDBIterator.html#ac9d995e53f1373af61020afbb45220a7">CDBIterator::~CDBIterator</a></div><div class="ttdeci">~CDBIterator()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00149">dbwrapper.cpp:149</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a6600aa8c2b30880dd7e032ea21f74aed"><div class="ttname"><a href="classCDBWrapper.html#a6600aa8c2b30880dd7e032ea21f74aed">CDBWrapper::Write</a></div><div class="ttdeci">bool Write(const K &amp;key, const V &amp;value, bool fSync=false)</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00209">dbwrapper.h:209</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a9137387b16dfc67a3af758576c5f8606"><div class="ttname"><a href="classCDBWrapper.html#a9137387b16dfc67a3af758576c5f8606">CDBWrapper::options</a></div><div class="ttdeci">leveldb::Options options</div><div class="ttdoc">database options used </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00142">dbwrapper.h:142</a></div></div>
<div class="ttc" id="util_8h_html_afc02c0a4258fedfb316be612bb659ba8"><div class="ttname"><a href="util_8h.html#afc02c0a4258fedfb316be612bb659ba8">LogPrintf</a></div><div class="ttdeci">#define LogPrintf(...)</div><div class="ttdef"><b>Definition:</b> <a href="util_8h_source.html#l00098">util.h:98</a></div></div>
<div class="ttc" id="classCDBWrapper_html_ab3b23518d0fe232794d23bd8e43bc15d"><div class="ttname"><a href="classCDBWrapper.html#ab3b23518d0fe232794d23bd8e43bc15d">CDBWrapper::GetObfuscateKeyHex</a></div><div class="ttdeci">std::string GetObfuscateKeyHex() const</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00144">dbwrapper.cpp:144</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a196335b21f6416e63acc5be8c747b7db"><div class="ttname"><a href="classCDBWrapper.html#a196335b21f6416e63acc5be8c747b7db">CDBWrapper::CDBWrapper</a></div><div class="ttdeci">CDBWrapper(const boost::filesystem::path &amp;path, size_t nCacheSize, bool fMemory=false, bool fWipe=false, bool obfuscate=false)</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00048">dbwrapper.cpp:48</a></div></div>
<div class="ttc" id="dbwrapper_8cpp_html_aea36eb5fddb6266b14ea8cb15e183486"><div class="ttname"><a href="dbwrapper_8cpp.html#aea36eb5fddb6266b14ea8cb15e183486">HandleError</a></div><div class="ttdeci">void HandleError(const leveldb::Status &amp;status)</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00018">dbwrapper.cpp:18</a></div></div>
<div class="ttc" id="classdbwrapper__error_html"><div class="ttname"><a href="classdbwrapper__error.html">dbwrapper_error</a></div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00020">dbwrapper.h:20</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a3624c2e99b0d4e9a4edc679b304fa180"><div class="ttname"><a href="classCDBWrapper.html#a3624c2e99b0d4e9a4edc679b304fa180">CDBWrapper::WriteBatch</a></div><div class="ttdeci">bool WriteBatch(CDBBatch &amp;batch, bool fSync=false)</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00105">dbwrapper.cpp:105</a></div></div>
<div class="ttc" id="util_8cpp_html_a4458ca67cacd593b21c8e1386d192064"><div class="ttname"><a href="util_8cpp.html#a4458ca67cacd593b21c8e1386d192064">TryCreateDirectory</a></div><div class="ttdeci">bool TryCreateDirectory(const boost::filesystem::path &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="util_8cpp_source.html#l00691">util.cpp:691</a></div></div>
<div class="ttc" id="classCDBWrapper_html_aa20c87d7d2e57782b628cc50678dad32"><div class="ttname"><a href="classCDBWrapper.html#aa20c87d7d2e57782b628cc50678dad32">CDBWrapper::~CDBWrapper</a></div><div class="ttdeci">~CDBWrapper()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00093">dbwrapper.cpp:93</a></div></div>
<div class="ttc" id="dbwrapper_8h_html"><div class="ttname"><a href="dbwrapper_8h.html">dbwrapper.h</a></div></div>
<div class="ttc" id="util_8h_html"><div class="ttname"><a href="util_8h.html">util.h</a></div></div>
<div class="ttc" id="classCDBWrapper_html_aac0086b6867ab79acc706f93a2908de0"><div class="ttname"><a href="classCDBWrapper.html#aac0086b6867ab79acc706f93a2908de0">CDBWrapper::syncoptions</a></div><div class="ttdeci">leveldb::WriteOptions syncoptions</div><div class="ttdoc">options used when sync writing to the database </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00154">dbwrapper.h:154</a></div></div>
<div class="ttc" id="classCDBWrapper_html_afb339cf3fd16de13f20217e4c475c79e"><div class="ttname"><a href="classCDBWrapper.html#afb339cf3fd16de13f20217e4c475c79e">CDBWrapper::readoptions</a></div><div class="ttdeci">leveldb::ReadOptions readoptions</div><div class="ttdoc">options used when reading from the database </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00145">dbwrapper.h:145</a></div></div>
<div class="ttc" id="classCDBWrapper_html_adb9487dea70007f9a85d2bb5a2b09608"><div class="ttname"><a href="classCDBWrapper.html#adb9487dea70007f9a85d2bb5a2b09608">CDBWrapper::iteroptions</a></div><div class="ttdeci">leveldb::ReadOptions iteroptions</div><div class="ttdoc">options used when iterating over values of the database </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00148">dbwrapper.h:148</a></div></div>
<div class="ttc" id="random_8cpp_html_ada0c29949c4d1ac0cc027d93c4771423"><div class="ttname"><a href="random_8cpp.html#ada0c29949c4d1ac0cc027d93c4771423">GetRandBytes</a></div><div class="ttdeci">void GetRandBytes(unsigned char *buf, int num)</div><div class="ttdef"><b>Definition:</b> <a href="random_8cpp_source.html#l00086">random.cpp:86</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a086e9b6d6756642cb5d60778ea948c8f"><div class="ttname"><a href="classCDBWrapper.html#a086e9b6d6756642cb5d60778ea948c8f">CDBWrapper::NewIterator</a></div><div class="ttdeci">CDBIterator * NewIterator()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00257">dbwrapper.h:257</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a87dba4369a5444d490998c6f57e6d2ba"><div class="ttname"><a href="classCDBWrapper.html#a87dba4369a5444d490998c6f57e6d2ba">CDBWrapper::GetObfuscateKey</a></div><div class="ttdeci">const std::vector&lt; unsigned char &gt; &amp; GetObfuscateKey() const</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00139">dbwrapper.cpp:139</a></div></div>
<div class="ttc" id="random_8h_html"><div class="ttname"><a href="random_8h.html">random.h</a></div></div>
<div class="ttc" id="classCDBWrapper_html_aec1b8db7dc13b64ba599ddb8141118ca"><div class="ttname"><a href="classCDBWrapper.html#aec1b8db7dc13b64ba599ddb8141118ca">CDBWrapper::IsEmpty</a></div><div class="ttdeci">bool IsEmpty()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00132">dbwrapper.cpp:132</a></div></div>
<div class="ttc" id="classCDBWrapper_html_ad1b9f0d554cd7e62d2789b7d3fca753a"><div class="ttname"><a href="classCDBWrapper.html#ad1b9f0d554cd7e62d2789b7d3fca753a">CDBWrapper::CreateObfuscateKey</a></div><div class="ttdeci">std::vector&lt; unsigned char &gt; CreateObfuscateKey() const</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00124">dbwrapper.cpp:124</a></div></div>
<div class="ttc" id="classCDBBatch_html"><div class="ttname"><a href="classCDBBatch.html">CDBBatch</a></div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00029">dbwrapper.h:29</a></div></div>
<div class="ttc" id="dbwrapper_8cpp_html_a22453a46b88c4e759768bbc1452049de"><div class="ttname"><a href="dbwrapper_8cpp.html#a22453a46b88c4e759768bbc1452049de">GetOptions</a></div><div class="ttdeci">static leveldb::Options GetOptions(size_t nCacheSize)</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00032">dbwrapper.cpp:32</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a38084dd7b2870e6ac3082e7521d88a29"><div class="ttname"><a href="classCDBWrapper.html#a38084dd7b2870e6ac3082e7521d88a29">CDBWrapper::Read</a></div><div class="ttdeci">bool Read(const K &amp;key, V &amp;value) const</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00183">dbwrapper.h:183</a></div></div>
<div class="ttc" id="classCDBIterator_html_ac2528733670e679f79011c347ff01f1c"><div class="ttname"><a href="classCDBIterator.html#ac2528733670e679f79011c347ff01f1c">CDBIterator::SeekToFirst</a></div><div class="ttdeci">void SeekToFirst()</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8cpp_source.html#l00151">dbwrapper.cpp:151</a></div></div>
<div class="ttc" id="namespacerpcuser_html_a637791b4450c02d511291cd297ce12df"><div class="ttname"><a href="namespacerpcuser.html#a637791b4450c02d511291cd297ce12df">rpcuser.result</a></div><div class="ttdeci">result</div><div class="ttdef"><b>Definition:</b> <a href="rpcuser_8py_source.html#l00037">rpcuser.py:37</a></div></div>
<div class="ttc" id="classCDBIterator_html_a996368b2965a7ca436c24eeb39ed2c53"><div class="ttname"><a href="classCDBIterator.html#a996368b2965a7ca436c24eeb39ed2c53">CDBIterator::piter</a></div><div class="ttdeci">leveldb::Iterator * piter</div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00075">dbwrapper.h:75</a></div></div>
<div class="ttc" id="classCDBWrapper_html_a6baaceaa7825b0adfc078c59fddd0f1c"><div class="ttname"><a href="classCDBWrapper.html#a6baaceaa7825b0adfc078c59fddd0f1c">CDBWrapper::obfuscate_key</a></div><div class="ttdeci">std::vector&lt; unsigned char &gt; obfuscate_key</div><div class="ttdoc">a key used for optional XOR-obfuscation of the database </div><div class="ttdef"><b>Definition:</b> <a href="dbwrapper_8h_source.html#l00160">dbwrapper.h:160</a></div></div>
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