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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li> </ul>
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<div class="title">clock.hh</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>  </div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include <chrono></span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>  </div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="keyword">namespace </span>uvgrtp {</div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  <span class="keyword">namespace </span>clock {</div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>  </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  <span class="comment">/* network time protocol */</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  <span class="keyword">namespace </span>ntp {</div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  uint64_t now();</div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  <span class="comment">/* return the difference of ntp timestamps in milliseconds */</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  uint64_t diff(uint64_t ntp1, uint64_t ntp2);</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="comment">/* Calculate the difference between now</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * (a wall clock reading when the function is called) and "then"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * The result is in milliseconds */</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  uint64_t diff_now(uint64_t then);</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  };</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="comment">/* high-resolution clock */</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">namespace </span>hrc {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">typedef</span> std::chrono::high_resolution_clock::time_point hrc_t;</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  hrc_t now();</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="comment">/* the result is in milliseconds */</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  uint64_t diff(hrc_t hrc1, hrc_t hrc2);</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="comment">/* the result is in milliseconds */</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  uint64_t diff_now(hrc_t then);</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  uint64_t diff_now_us(hrc_t& then);</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  };</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  uint64_t ms_to_jiffies(uint64_t ms);</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  uint64_t jiffies_to_ms(uint64_t jiffies);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#ifdef _WIN32</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">int</span> gettimeofday(<span class="keyword">struct</span> timeval *tp, <span class="keyword">struct</span> timezone *tzp);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  };</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> };</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">namespace </span>uvg_rtp = uvgrtp;</div>
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