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1 /* |
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2 * elapsed-timer.cpp -- measure elapsed time |
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3 * |
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4 * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include "elapsed-timer.h" |
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20 |
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21 using std::chrono::duration_cast; |
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22 using std::chrono::high_resolution_clock; |
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23 using std::chrono::milliseconds; |
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24 |
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25 namespace irccd { |
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26 |
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27 ElapsedTimer::ElapsedTimer() noexcept |
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28 { |
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29 m_last = high_resolution_clock::now(); |
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30 } |
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31 |
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32 void ElapsedTimer::pause() noexcept |
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33 { |
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34 /* |
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35 * When we put the timer on pause, do not forget to set the already |
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36 * elapsed time. |
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37 */ |
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38 (void)elapsed(); |
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39 m_paused = true; |
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40 } |
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41 |
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42 void ElapsedTimer::restart() noexcept |
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43 { |
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44 m_paused = false; |
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45 m_last = high_resolution_clock::now(); |
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46 } |
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47 |
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48 void ElapsedTimer::reset() noexcept |
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49 { |
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50 m_elapsed = 0; |
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51 m_last = high_resolution_clock::now(); |
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52 } |
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53 |
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54 unsigned ElapsedTimer::elapsed() noexcept |
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55 { |
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56 if (!m_paused) { |
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57 m_elapsed += duration_cast<milliseconds>(high_resolution_clock::now() - m_last).count(); |
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58 m_last = high_resolution_clock::now(); |
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59 } |
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60 |
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61 return m_elapsed; |
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62 } |
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63 |
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64 } // !irccd |
