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67 lines
1.2 KiB
C++
67 lines
1.2 KiB
C++
//
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// FILE: StopWatch.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.02
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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 therefor 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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//
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// Released to the public domain
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//
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#include "StopWatch.h"
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#include "wiring.h"
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StopWatch::StopWatch()
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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 (STOPWATCH_RESET == _state || STOPWATCH_STOPPED == _state)
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{
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_state = STOPWATCH_RUNNING;
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unsigned long t = millis();
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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 (STOPWATCH_RUNNING == _state) _stoptime = millis();
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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 (STOPWATCH_RUNNING == _state)
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{
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_state = STOPWATCH_STOPPED;
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_stoptime = millis();
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}
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}
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bool StopWatch::isRunning()
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{
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return (STOPWATCH_RUNNING == _state);
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}
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int 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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