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Timer.cpp
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Timer.cpp
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/*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * *
Code by Simon Monk
http://www.simonmonk.org
* * * * * * * * * * * * * * * * * * * * * * * * * * * * */
// For Arduino 1.0 and earlier
#if defined _WIN32
#include <Windows.h>
#elif defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#include "Timer.h"
Timer::Timer(void)
{
}
int8_t Timer::every(unsigned long period, void (*callback)(), int repeatCount)
{
int8_t i = findFreeEventIndex();
if (i == -1) return -1;
_events[i].eventType = EVENT_EVERY;
_events[i].period = period;
_events[i].repeatCount = repeatCount;
_events[i].callback = callback;
_events[i].lastEventTime = millis();
_events[i].count = 0;
return i;
}
int8_t Timer::every(unsigned long period, void (*callback)())
{
return every(period, callback, -1); // - means forever
}
int8_t Timer::after(unsigned long period, void (*callback)())
{
return every(period, callback, 1);
}
void Timer::stop(int8_t id)
{
if (id >= 0 && id < MAX_NUMBER_OF_EVENTS) {
_events[id].eventType = EVENT_NONE;
}
}
void Timer::update(void)
{
unsigned long now = millis();
update(now);
}
void Timer::update(unsigned long now)
{
for (int8_t i = 0; i < MAX_NUMBER_OF_EVENTS; i++)
{
if (_events[i].eventType != EVENT_NONE)
{
_events[i].update(now);
}
}
}
int8_t Timer::findFreeEventIndex(void)
{
for (int8_t i = 0; i < MAX_NUMBER_OF_EVENTS; i++)
{
if (_events[i].eventType == EVENT_NONE)
{
return i;
}
}
return NO_TIMER_AVAILABLE;
}
Timer g_timer;