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83 lines
1.7 KiB
C++
83 lines
1.7 KiB
C++
//
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// FILE: StopWatch.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.03
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// PURPOSE: Simple StopWatch library for Arduino
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//
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// The library is based upon millis() and therefore
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// has the same restrictions as millis() has wrt overflow.
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//
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// HISTORY:
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// 0.1.00 - 2011-01-04 initial version
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// 0.1.01 - 2011-01-04 Added better state
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// 0.1.02 - 2011-06-15 Added state() + #defines + lib version
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// 0.1.03 - 2012-01-22 Added several improvements
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// By mromani & Rob Tillaart
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//
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// Released to the public domain
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//
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#include "StopWatch.h"
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StopWatch::StopWatch(enum Resolution res)
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{
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_res = res;
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switch(_res) {
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case MICROS:
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_gettime = micros;
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break;
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case MILLIS:
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_gettime = millis;
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break;
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case SECONDS:
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_gettime = seconds;
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break;
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default:
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_gettime = millis;
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break;
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}
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reset();
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}
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void StopWatch::reset()
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{
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_state = StopWatch::RESET;
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_starttime = _stoptime = 0;
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}
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void StopWatch::start()
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{
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if (_state == StopWatch::RESET || _state == StopWatch::STOPPED)
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{
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_state = StopWatch::RUNNING;
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unsigned long t = _gettime();
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_starttime += t - _stoptime;
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_stoptime = t;
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}
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}
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unsigned long StopWatch::value()
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{
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if (_state == StopWatch::RUNNING) _stoptime = _gettime();
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return _stoptime - _starttime;
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}
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void StopWatch::stop()
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{
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if (_state == StopWatch::RUNNING)
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{
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_state = StopWatch::STOPPED;
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_stoptime = _gettime();
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}
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}
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bool StopWatch::isRunning()
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{
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return (_state == StopWatch::RUNNING);
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}
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enum StopWatch::State StopWatch::state()
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{
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return _state;
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}
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// END OF FILE
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