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/*
* Chronometer class
* Chronometer/stopwatch class that counts the time passed since started.
*
* (c) 2015 Sofian Audry :: info(@)sofianaudry(.)com
* (c) Thomas O Fredericks :: tof(@)t-o-f(.)info
* (c) Rob Tillaart
*
* Based on code by Sofian Audry:
* https://github.com/sofian/libinteract/blob/master/trunk/arduino/SuperTimer.h
* http://accrochages.drone.ws/node/90
*
* Rob Tillaart StopWatch library:
* http://playground.arduino.cc/Code/StopWatchClass
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#include "Chrono.h"
Chrono::Chrono(Resolution resolution) {
// Assign appropriate time function.
switch(resolution) {
case SECONDS:
_getTime = seconds;
break;
case MICROS:
_getTime = micros;
break;
case MILLIS:
default:
_getTime = millis;
break;
}
// Start.
restart();
}
Chrono::Chrono(Chrono::chrono_t (*getTime_)(void), bool startNow) : _getTime(getTime_) {
if (startNow)
restart();
else {
_startTime = _offset = 0;
_isRunning = false;
}
}
void Chrono::start(Chrono::chrono_t offset) {
restart(offset);
}
void Chrono::restart(Chrono::chrono_t offset) {
_startTime = _getTime();
_offset = offset;
_isRunning = true;
}
void Chrono::stop() {
_offset = elapsed(); // save currently elapsed time
_isRunning = false;
}
void Chrono::resume() {
_startTime = _getTime();
_isRunning = true;
}
void Chrono::add(Chrono::chrono_t t) {
_offset += t;
}
bool Chrono::isRunning() const {
return (_isRunning);
}
void Chrono::delay(Chrono::chrono_t time) {
time += elapsed();
while (!hasPassed(time));
}
Chrono::chrono_t Chrono::elapsed() const {
return _offset + (_isRunning ? (_getTime() - _startTime) : 0);
}
bool Chrono::hasPassed(Chrono::chrono_t timeout) const
{
return (elapsed() >= timeout);
}
bool Chrono::hasPassed(Chrono::chrono_t timeout, bool restartIfPassed) {
if (hasPassed(timeout)) {
if (restartIfPassed)
restart();
return true;
}
else {
return false;
}
}
Chrono::chrono_t Chrono::seconds() {
return (millis()/1000);
}