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rippled/classripple_1_1NodeStore_1_1NuDBBackend.html
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<li class="navelem"><a class="el" href="namespaceripple.html">ripple</a></li><li class="navelem"><a class="el" href="namespaceripple_1_1NodeStore.html">NodeStore</a></li><li class="navelem"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html">NuDBBackend</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
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<tr class="memitem:a973bd1539e909dcc515980e7b6f61f3d" id="r_a973bd1539e909dcc515980e7b6f61f3d"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a973bd1539e909dcc515980e7b6f61f3d">getName</a> () override</td></tr>
<tr class="memdesc:a973bd1539e909dcc515980e7b6f61f3d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the human-readable name of this backend. <br /></td></tr>
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<tr class="memdesc:a7ecb3aaf359d9d5159ed350873f4de9e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the block size for backends that support it. <br /></td></tr>
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<tr class="memdesc:a9e494839a2dcf789bb6cdc300ad65931"><td class="mdescLeft">&#160;</td><td class="mdescRight">Open the backend. <br /></td></tr>
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<tr class="memitem:acf5ab73b7ec283a9ee0b73462e1d8531" id="r_acf5ab73b7ec283a9ee0b73462e1d8531"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#acf5ab73b7ec283a9ee0b73462e1d8531">isOpen</a> () override</td></tr>
<tr class="memdesc:acf5ab73b7ec283a9ee0b73462e1d8531"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns true is the database is open. <br /></td></tr>
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<tr class="memitem:a2160cbce008b1fd13e1797d81d989128" id="r_a2160cbce008b1fd13e1797d81d989128"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a2160cbce008b1fd13e1797d81d989128">open</a> (bool createIfMissing) override</td></tr>
<tr class="memdesc:a2160cbce008b1fd13e1797d81d989128"><td class="mdescLeft">&#160;</td><td class="mdescRight">Open the backend. <br /></td></tr>
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<tr class="memdesc:a336d7fe747c73366bec1cf42c5e05b67"><td class="mdescLeft">&#160;</td><td class="mdescRight">Close the backend. <br /></td></tr>
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<tr class="memitem:a1b03edf356922e780fe41987476f1f6a" id="r_a1b03edf356922e780fe41987476f1f6a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceripple_1_1NodeStore.html#af127c2e4fc73b5d35647147ef45b350c">Status</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a1b03edf356922e780fe41987476f1f6a">fetch</a> (void const *key, <a class="elRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a>&lt; <a class="el" href="classripple_1_1NodeObject.html">NodeObject</a> &gt; *pno) override</td></tr>
<tr class="memdesc:a1b03edf356922e780fe41987476f1f6a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fetch a single object. <br /></td></tr>
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<tr class="memitem:a260a0974fe386a76cd3956207a1b1878" id="r_a260a0974fe386a76cd3956207a1b1878"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair</a>&lt; <a class="elRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt; <a class="elRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a>&lt; <a class="el" href="classripple_1_1NodeObject.html">NodeObject</a> &gt; &gt;, <a class="el" href="namespaceripple_1_1NodeStore.html#af127c2e4fc73b5d35647147ef45b350c">Status</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a260a0974fe386a76cd3956207a1b1878">fetchBatch</a> (<a class="elRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt; <a class="el" href="namespaceripple.html#a356c68147333a9a48a344718038576d9">uint256</a> const * &gt; const &amp;hashes) override</td></tr>
<tr class="memdesc:a260a0974fe386a76cd3956207a1b1878"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fetch a batch synchronously. <br /></td></tr>
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<tr class="memdesc:a00c5d2a5073f3318fc0e52f255a1c212"><td class="mdescLeft">&#160;</td><td class="mdescRight">Store a single object. <br /></td></tr>
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<tr class="memdesc:a4e9abc2a44a3501131709dcd6d5c509a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Store a group of objects. <br /></td></tr>
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<tr class="memdesc:abaf0ba251ee000601135df13dd885dca"><td class="mdescLeft">&#160;</td><td class="mdescRight">Visit every object in the database This is usually called during import. <br /></td></tr>
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<tr class="memitem:adf8b3a8b6f911845a8323cc00c0aeff0" id="r_adf8b3a8b6f911845a8323cc00c0aeff0"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#adf8b3a8b6f911845a8323cc00c0aeff0">getWriteLoad</a> () override</td></tr>
<tr class="memdesc:adf8b3a8b6f911845a8323cc00c0aeff0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Estimate the number of write operations pending. <br /></td></tr>
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<tr class="memdesc:ae6cf1bca8633f03532a5836b959adc60"><td class="mdescLeft">&#160;</td><td class="mdescRight">Remove contents on disk upon destruction. <br /></td></tr>
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<tr class="memdesc:ab012b4ff123427bc35a5d4ac4c6269c0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Perform consistency checks on database. <br /></td></tr>
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<tr class="memitem:a80ceb104dfe540399ddb1fe8d43111ac" id="r_a80ceb104dfe540399ddb1fe8d43111ac"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a80ceb104dfe540399ddb1fe8d43111ac">fdRequired</a> () const override</td></tr>
<tr class="memdesc:a80ceb104dfe540399ddb1fe8d43111ac"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the number of file descriptors the backend expects to need. <br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a593d4e2212d37088d4111504207c72a0" id="r_a593d4e2212d37088d4111504207c72a0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classbeast_1_1Journal.html">beast::Journal</a> const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a593d4e2212d37088d4111504207c72a0">j_</a></td></tr>
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<tr class="memitem:a9bcccb128daa5128b44fee7584d657cf" id="r_a9bcccb128daa5128b44fee7584d657cf"><td class="memItemLeft" align="right" valign="top">size_t const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a9bcccb128daa5128b44fee7584d657cf">keyBytes_</a></td></tr>
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<tr class="memitem:a260230fcffdef9cd8fa1140698d12bd1" id="r_a260230fcffdef9cd8fa1140698d12bd1"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a260230fcffdef9cd8fa1140698d12bd1">burstSize_</a></td></tr>
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<tr class="memitem:af09646240fc21de30656984a7283a053" id="r_af09646240fc21de30656984a7283a053"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#af09646240fc21de30656984a7283a053">name_</a></td></tr>
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<tr class="memitem:ac83d12d6cd9c617bbd1f5ebccf8ba5e2" id="r_ac83d12d6cd9c617bbd1f5ebccf8ba5e2"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> const&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#ac83d12d6cd9c617bbd1f5ebccf8ba5e2">blockSize_</a></td></tr>
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<tr class="memitem:a93307b4032398645d984ecc1f90bd1e7" id="r_a93307b4032398645d984ecc1f90bd1e7"><td class="memItemLeft" align="right" valign="top">nudb::store&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a93307b4032398645d984ecc1f90bd1e7">db_</a></td></tr>
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<tr class="memitem:ac45f916ad224a53a053260d68b622bc7" id="r_ac45f916ad224a53a053260d68b622bc7"><td class="memItemLeft" align="right" valign="top"><a class="elRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic</a>&lt; bool &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#ac45f916ad224a53a053260d68b622bc7">deletePath_</a></td></tr>
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<tr class="memitem:a265296b90c702786f4944f344f31d132" id="r_a265296b90c702786f4944f344f31d132"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classripple_1_1NodeStore_1_1Scheduler.html">Scheduler</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a265296b90c702786f4944f344f31d132">scheduler_</a></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-static-attribs" name="pub-static-attribs"></a>
Static Public Attributes</h2></td></tr>
<tr class="memitem:a2e7e8af12d12c5bd1a26824c8782dd8b" id="r_a2e7e8af12d12c5bd1a26824c8782dd8b"><td class="memItemLeft" align="right" valign="top">static constexpr <a class="elRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint64_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a2e7e8af12d12c5bd1a26824c8782dd8b">appnum</a> = 1</td></tr>
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Static Private Member Functions</h2></td></tr>
<tr class="memitem:a2da4bc860bc325435d7cb42a92994cb9" id="r_a2da4bc860bc325435d7cb42a92994cb9"><td class="memItemLeft" align="right" valign="top">static <a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a2da4bc860bc325435d7cb42a92994cb9">parseBlockSize</a> (<a class="elRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> const &amp;name, <a class="el" href="classripple_1_1Section.html">Section</a> const &amp;keyValues, <a class="el" href="classbeast_1_1Journal.html">beast::Journal</a> journal)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock">
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00023">23</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a0c087b7017042ac7691c40c15ba868e6">&#9670;&#160;</a></span>NuDBBackend() <span class="overload">[1/2]</span></h2>
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<td class="memname">ripple::NodeStore::NuDBBackend::NuDBBackend </td>
<td>(</td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>keyBytes</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classripple_1_1Section.html">Section</a> const &amp;&#160;</td>
<td class="paramname"><em>keyValues</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>&#160;</td>
<td class="paramname"><em>burstSize</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classripple_1_1NodeStore_1_1Scheduler.html">Scheduler</a> &amp;&#160;</td>
<td class="paramname"><em>scheduler</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classbeast_1_1Journal.html">beast::Journal</a>&#160;</td>
<td class="paramname"><em>journal</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00041">41</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a39dce6db7becaff9d5819d81cc8ed8b6">&#9670;&#160;</a></span>NuDBBackend() <span class="overload">[2/2]</span></h2>
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<td class="memname">ripple::NodeStore::NuDBBackend::NuDBBackend </td>
<td>(</td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>keyBytes</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classripple_1_1Section.html">Section</a> const &amp;&#160;</td>
<td class="paramname"><em>keyValues</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>&#160;</td>
<td class="paramname"><em>burstSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classripple_1_1NodeStore_1_1Scheduler.html">Scheduler</a> &amp;&#160;</td>
<td class="paramname"><em>scheduler</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">nudb::context &amp;&#160;</td>
<td class="paramname"><em>context</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classbeast_1_1Journal.html">beast::Journal</a>&#160;</td>
<td class="paramname"><em>journal</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00060">60</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4162d130c7626e1e5207d1ffd583e880">&#9670;&#160;</a></span>~NuDBBackend()</h2>
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<td class="memname">ripple::NodeStore::NuDBBackend::~NuDBBackend </td>
<td>(</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00081">81</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a973bd1539e909dcc515980e7b6f61f3d">&#9670;&#160;</a></span>getName()</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> ripple::NodeStore::NuDBBackend::getName </td>
<td>(</td>
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<p>Get the human-readable name of this backend. </p>
<p>This is used for diagnostic output. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a206d540c4b8359c598f2309c5ee194bd">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00096">96</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7ecb3aaf359d9d5159ed350873f4de9e">&#9670;&#160;</a></span>getBlockSize()</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional</a>&lt; <a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> &gt; ripple::NodeStore::NuDBBackend::getBlockSize </td>
<td>(</td>
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<td> const</td>
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<p>Get the block size for backends that support it. </p>
<p>Reimplemented from <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a6471a9de444ac0df7c1dd102efa95854">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00102">102</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9e494839a2dcf789bb6cdc300ad65931">&#9670;&#160;</a></span>open() <span class="overload">[1/2]</span></h2>
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<td class="memname">void ripple::NodeStore::NuDBBackend::open </td>
<td>(</td>
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<td class="paramname"><em>createIfMissing</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>appType</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>uid</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>salt</em>&#160;</td>
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<td>)</td>
<td></td><td></td>
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<p>Open the backend. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">createIfMissing</td><td>Create the database files if necessary. </td></tr>
<tr><td class="paramname">appType</td><td>Deterministic appType used to create a backend. </td></tr>
<tr><td class="paramname">uid</td><td>Deterministic uid used to create a backend. </td></tr>
<tr><td class="paramname">salt</td><td>Deterministic salt used to create a backend. </td></tr>
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</dd>
</dl>
<dl class="exception"><dt>Exceptions</dt><dd>
<table class="exception">
<tr><td class="paramname"><a class="elRef" href="http://en.cppreference.com/w/cpp/error/runtime_error.html">std::runtime_error</a></td><td>is function is called not for NuDB backend. </td></tr>
</table>
</dd>
</dl>
<p>Reimplemented from <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#ae4e7c931c5382d31d877c6f7162dd21e">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00108">108</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#acf5ab73b7ec283a9ee0b73462e1d8531">&#9670;&#160;</a></span>isOpen()</h2>
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<td class="memname">bool ripple::NodeStore::NuDBBackend::isOpen </td>
<td>(</td>
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<p>Returns true is the database is open. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#acd6ac096e54166098107227a8d168044">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00156">156</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<td class="memname">void ripple::NodeStore::NuDBBackend::open </td>
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<p>Open the backend. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">createIfMissing</td><td>Create the database files if necessary. This allows the caller to catch exceptions. </td></tr>
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</dd>
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<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a586356a9f6050201be9d184bc3fd2c83">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00162">162</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<td class="memname">void ripple::NodeStore::NuDBBackend::close </td>
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<p>Close the backend. </p>
<p>This allows the caller to catch exceptions. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a6b13f9a9bbf0bf6470648f4910a92dd0">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00168">168</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1b03edf356922e780fe41987476f1f6a">&#9670;&#160;</a></span>fetch()</h2>
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<td class="memname"><a class="el" href="namespaceripple_1_1NodeStore.html#af127c2e4fc73b5d35647147ef45b350c">Status</a> ripple::NodeStore::NuDBBackend::fetch </td>
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<td class="paramtype"><a class="elRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a>&lt; <a class="el" href="classripple_1_1NodeObject.html">NodeObject</a> &gt; *&#160;</td>
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<p>Fetch a single object. </p>
<p>If the object is not found or an error is encountered, the result will indicate the condition. </p><dl class="section note"><dt>Note</dt><dd>This will be called concurrently. </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">key</td><td>A pointer to the key data. </td></tr>
<tr><td class="paramname">pObject</td><td>[out] The created object if successful. </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>The result of the operation. </dd></dl>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a7d3224e43e89dc098962b986d70e9833">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00194">194</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a260a0974fe386a76cd3956207a1b1878">&#9670;&#160;</a></span>fetchBatch()</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair</a>&lt; <a class="elRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt; <a class="elRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a>&lt; <a class="el" href="classripple_1_1NodeObject.html">NodeObject</a> &gt; &gt;, <a class="el" href="namespaceripple_1_1NodeStore.html#af127c2e4fc73b5d35647147ef45b350c">Status</a> &gt; ripple::NodeStore::NuDBBackend::fetchBatch </td>
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<td class="paramtype"><a class="elRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt; <a class="el" href="namespaceripple.html#a356c68147333a9a48a344718038576d9">uint256</a> const * &gt; const &amp;&#160;</td>
<td class="paramname"><em>hashes</em></td><td>)</td>
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<p>Fetch a batch synchronously. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a9a651edcf0faf1fd93b105d0286015d9">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00222">222</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4ffccad519a4ac36bb0329a186b4783f">&#9670;&#160;</a></span>do_insert()</h2>
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<td class="memname">void ripple::NodeStore::NuDBBackend::do_insert </td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00240">240</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a00c5d2a5073f3318fc0e52f255a1c212">&#9670;&#160;</a></span>store()</h2>
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<td class="paramname"><em>object</em></td><td>)</td>
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<p>Store a single object. </p>
<p>Depending on the implementation this may happen immediately or deferred using a scheduled task. </p><dl class="section note"><dt>Note</dt><dd>This will be called concurrently. </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">object</td><td>The object to store. </td></tr>
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<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a8862f8d96713c985c3169e57cbb260c2">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00252">252</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4e9abc2a44a3501131709dcd6d5c509a">&#9670;&#160;</a></span>storeBatch()</h2>
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<td class="memname">void ripple::NodeStore::NuDBBackend::storeBatch </td>
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<td class="paramtype"><a class="el" href="namespaceripple_1_1NodeStore.html#ae0e4b79f8eb3ffa0bf8fcaf848643202">Batch</a> const &amp;&#160;</td>
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<p>Store a group of objects. </p>
<dl class="section note"><dt>Note</dt><dd>This function will not be called concurrently with itself or <a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html#a00c5d2a5073f3318fc0e52f255a1c212">store</a>. </dd></dl>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#acb1f22b4101841e695477646c95376a7">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00264">264</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7d886e5eee636e58798208a5e46e71f6">&#9670;&#160;</a></span>sync()</h2>
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<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a0756bdfe06dcb0382b47e23b39813394">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00277">277</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<td class="memname">void ripple::NodeStore::NuDBBackend::for_each </td>
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<p>Visit every object in the database This is usually called during import. </p>
<dl class="section note"><dt>Note</dt><dd>This routine will not be called concurrently with itself or other methods. </dd></dl>
<dl class="section see"><dt>See also</dt><dd>import </dd></dl>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a70721d2adc758a808d2536eee864df52">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00282">282</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#adf8b3a8b6f911845a8323cc00c0aeff0">&#9670;&#160;</a></span>getWriteLoad()</h2>
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<p>Estimate the number of write operations pending. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#ac4d7008b7a616ce05568da3e96a204ec">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00319">319</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<p>Remove contents on disk upon destruction. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a898be5251e9216eb21938e3083c2d1ef">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00325">325</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<p>Perform consistency checks on database. </p>
<p>This method is implemented only by <a class="el" href="classripple_1_1NodeStore_1_1NuDBBackend.html">NuDBBackend</a>. It is not yet called anywhere, but it might be a good idea to one day call it at startup to avert a crash. </p>
<p>Reimplemented from <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#afea5371bd4d7824d96f28700fa831f33">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00331">331</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<p>Returns the number of file descriptors the backend expects to need. </p>
<p>Implements <a class="el" href="classripple_1_1NodeStore_1_1Backend.html#a915130d326c2e63209accb8af09cf8b4">ripple::NodeStore::Backend</a>.</p>
<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00350">350</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00357">357</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e7e8af12d12c5bd1a26824c8782dd8b">&#9670;&#160;</a></span>appnum</h2>
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<td class="memname">constexpr <a class="elRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint64_t</a> ripple::NodeStore::NuDBBackend::appnum = 1</td>
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<span class="mlabels"><span class="mlabel">static</span><span class="mlabel">constexpr</span></span> </td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00030">30</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a593d4e2212d37088d4111504207c72a0">&#9670;&#160;</a></span>j_</h2>
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<td class="memname"><a class="el" href="classbeast_1_1Journal.html">beast::Journal</a> const ripple::NodeStore::NuDBBackend::j_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00032">32</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9bcccb128daa5128b44fee7584d657cf">&#9670;&#160;</a></span>keyBytes_</h2>
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<td class="memname">size_t const ripple::NodeStore::NuDBBackend::keyBytes_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00033">33</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> const ripple::NodeStore::NuDBBackend::burstSize_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00034">34</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#af09646240fc21de30656984a7283a053">&#9670;&#160;</a></span>name_</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> const ripple::NodeStore::NuDBBackend::name_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00035">35</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac83d12d6cd9c617bbd1f5ebccf8ba5e2">&#9670;&#160;</a></span>blockSize_</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> const ripple::NodeStore::NuDBBackend::blockSize_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00036">36</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a93307b4032398645d984ecc1f90bd1e7">&#9670;&#160;</a></span>db_</h2>
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<td class="memname">nudb::store ripple::NodeStore::NuDBBackend::db_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00037">37</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac45f916ad224a53a053260d68b622bc7">&#9670;&#160;</a></span>deletePath_</h2>
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<td class="memname"><a class="elRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic</a>&lt;bool&gt; ripple::NodeStore::NuDBBackend::deletePath_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00038">38</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a265296b90c702786f4944f344f31d132">&#9670;&#160;</a></span>scheduler_</h2>
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<td class="memname"><a class="el" href="classripple_1_1NodeStore_1_1Scheduler.html">Scheduler</a>&amp; ripple::NodeStore::NuDBBackend::scheduler_</td>
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<p class="definition">Definition at line <a class="el" href="NuDBFactory_8cpp_source.html#l00039">39</a> of file <a class="el" href="NuDBFactory_8cpp_source.html">NuDBFactory.cpp</a>.</p>
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