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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_0103a8ad82dcc2c51f5cde661b4b5cb7.html">xrpl</a></li><li class="navelem"><a class="el" href="dir_f534ca90a4985f34ab325acfbcd39b84.html">basics</a></li> </ul>
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<div class="headertitle"><div class="title">UptimeClock.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#ifndef XRPL_BASICS_UPTIMETIMER_H_INCLUDED</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define XRPL_BASICS_UPTIMETIMER_H_INCLUDED</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a>&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/chrono.html">chrono</a>&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/ratio.html">ratio</a>&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/thread.html">thread</a>&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="foldopen" id="foldopen00018" data-start="{" data-end="};">
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html"> 18</a></span><span class="keyword">class </span><a class="code hl_class" href="classripple_1_1UptimeClock.html">UptimeClock</a></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span>{</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#ae674ae28fa08923824a71da9761b3ffe"> 21</a></span> <span class="keyword">using </span><a class="code hl_typedef" href="classripple_1_1UptimeClock.html#ae674ae28fa08923824a71da9761b3ffe">rep</a> = int;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#add29eb7d6f6e60e6a33e4d3dc474b298"> 22</a></span> <span class="keyword">using </span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/ratio/ratio.html">period</a> = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/numeric/ratio/ratio.html">std::ratio&lt;1&gt;</a>;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#ac65a03f7831f831511985e0b3966ac51"> 23</a></span> <span class="keyword">using </span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">duration</a> = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::duration&lt;rep, period&gt;</a>;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#aa38022139969f4d6a0f68932d5349f48"> 24</a></span> <span class="keyword">using </span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">time_point</a> = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point&lt;UptimeClock&gt;</a>;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#a72b3ab30ffa11af67b3443bb4773ac93"> 25</a></span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_variable" href="classripple_1_1UptimeClock.html#a72b3ab30ffa11af67b3443bb4773ac93">is_steady</a> = std::chrono::system_clock::is_steady;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#a03c13771ed6c0c76dbd738aa2df16293"> 27</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classripple_1_1UptimeClock.html#a03c13771ed6c0c76dbd738aa2df16293">UptimeClock</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/chrono/time_point.html">time_point</a></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <a class="code hl_function" href="classripple_1_1UptimeClock.html#ae854244a4dcf8de363337e93d5a04444">now</a>(); <span class="comment">// seconds since rippled program start</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#acb9cbc691e8c4a7c7554ecc4b46a9dbf"> 33</a></span> <span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;rep&gt;</a> <a class="code hl_variable" href="classripple_1_1UptimeClock.html#acb9cbc691e8c4a7c7554ecc4b46a9dbf">now_</a>;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="classripple_1_1UptimeClock.html#aff526184e48d4ddfb8c0b000e941896b"> 34</a></span> <span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;bool&gt;</a> <a class="code hl_variable" href="classripple_1_1UptimeClock.html#aff526184e48d4ddfb8c0b000e941896b">stop_</a>;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="foldopen" id="foldopen00036" data-start="{" data-end="};">
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="structripple_1_1UptimeClock_1_1update__thread.html"> 36</a></span> <span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1UptimeClock_1_1update__thread.html">update_thread</a> : <span class="keyword">private</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/thread.html">std::thread</a></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <a class="code hl_function" href="structripple_1_1UptimeClock_1_1update__thread.html#a410d6c334f6e6ba383a0c00efb27ac4b">~update_thread</a>();</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="structripple_1_1UptimeClock_1_1update__thread.html#ab55727d5d7ea522423d60257cb462444"> 39</a></span> <a class="code hl_function" href="structripple_1_1UptimeClock_1_1update__thread.html#ab55727d5d7ea522423d60257cb462444">update_thread</a>(<a class="code hl_struct" href="structripple_1_1UptimeClock_1_1update__thread.html">update_thread</a>&amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">using </span><a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/thread/thread/thread.html">std::thread::thread</a>;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> };</div>
</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">static</span> <a class="code hl_struct" href="structripple_1_1UptimeClock_1_1update__thread.html">update_thread</a></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_function" href="classripple_1_1UptimeClock.html#ab2d08a5c727dee9ccfef0e7eac180a51">start_clock</a>();</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>};</div>
</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span>} <span class="comment">// namespace ripple</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aatomic_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a></div></div>
<div class="ttc" id="achrono_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/chrono.html">chrono</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html"><div class="ttname"><a href="classripple_1_1UptimeClock.html">ripple::UptimeClock</a></div><div class="ttdoc">Tracks program uptime to seconds precision.</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8h_source.html#l00018">UptimeClock.h:19</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_a03c13771ed6c0c76dbd738aa2df16293"><div class="ttname"><a href="classripple_1_1UptimeClock.html#a03c13771ed6c0c76dbd738aa2df16293">ripple::UptimeClock::UptimeClock</a></div><div class="ttdeci">UptimeClock()=default</div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_a72b3ab30ffa11af67b3443bb4773ac93"><div class="ttname"><a href="classripple_1_1UptimeClock.html#a72b3ab30ffa11af67b3443bb4773ac93">ripple::UptimeClock::is_steady</a></div><div class="ttdeci">static constexpr bool is_steady</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8h_source.html#l00025">UptimeClock.h:25</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_ab2d08a5c727dee9ccfef0e7eac180a51"><div class="ttname"><a href="classripple_1_1UptimeClock.html#ab2d08a5c727dee9ccfef0e7eac180a51">ripple::UptimeClock::start_clock</a></div><div class="ttdeci">static update_thread start_clock()</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8cpp_source.html#l00026">UptimeClock.cpp:26</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_acb9cbc691e8c4a7c7554ecc4b46a9dbf"><div class="ttname"><a href="classripple_1_1UptimeClock.html#acb9cbc691e8c4a7c7554ecc4b46a9dbf">ripple::UptimeClock::now_</a></div><div class="ttdeci">static std::atomic&lt; rep &gt; now_</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8h_source.html#l00033">UptimeClock.h:33</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_ae674ae28fa08923824a71da9761b3ffe"><div class="ttname"><a href="classripple_1_1UptimeClock.html#ae674ae28fa08923824a71da9761b3ffe">ripple::UptimeClock::rep</a></div><div class="ttdeci">int rep</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8h_source.html#l00021">UptimeClock.h:21</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_ae854244a4dcf8de363337e93d5a04444"><div class="ttname"><a href="classripple_1_1UptimeClock.html#ae854244a4dcf8de363337e93d5a04444">ripple::UptimeClock::now</a></div><div class="ttdeci">static time_point now()</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8cpp_source.html#l00048">UptimeClock.cpp:48</a></div></div>
<div class="ttc" id="aclassripple_1_1UptimeClock_html_aff526184e48d4ddfb8c0b000e941896b"><div class="ttname"><a href="classripple_1_1UptimeClock.html#aff526184e48d4ddfb8c0b000e941896b">ripple::UptimeClock::stop_</a></div><div class="ttdeci">static std::atomic&lt; bool &gt; stop_</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8h_source.html#l00034">UptimeClock.h:34</a></div></div>
<div class="ttc" id="aduration_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/duration.html">std::chrono::duration&lt; rep, period &gt;</a></div></div>
<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition</b> <a href="algorithm_8h_source.html#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="aratio_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/ratio.html">ratio</a></div></div>
<div class="ttc" id="astructripple_1_1UptimeClock_1_1update__thread_html"><div class="ttname"><a href="structripple_1_1UptimeClock_1_1update__thread.html">ripple::UptimeClock::update_thread</a></div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8h_source.html#l00036">UptimeClock.h:37</a></div></div>
<div class="ttc" id="astructripple_1_1UptimeClock_1_1update__thread_html_a410d6c334f6e6ba383a0c00efb27ac4b"><div class="ttname"><a href="structripple_1_1UptimeClock_1_1update__thread.html#a410d6c334f6e6ba383a0c00efb27ac4b">ripple::UptimeClock::update_thread::~update_thread</a></div><div class="ttdeci">~update_thread()</div><div class="ttdef"><b>Definition</b> <a href="UptimeClock_8cpp_source.html#l00013">UptimeClock.cpp:13</a></div></div>
<div class="ttc" id="astructripple_1_1UptimeClock_1_1update__thread_html_ab55727d5d7ea522423d60257cb462444"><div class="ttname"><a href="structripple_1_1UptimeClock_1_1update__thread.html#ab55727d5d7ea522423d60257cb462444">ripple::UptimeClock::update_thread::update_thread</a></div><div class="ttdeci">update_thread(update_thread &amp;&amp;)=default</div></div>
<div class="ttc" id="athread_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/thread.html">thread</a></div></div>
<div class="ttc" id="atime_point_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/time_point.html">std::chrono::time_point</a></div></div>
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