CoffeePi/CoffeeCode/timer.h

/*
 * timer.h
 *
 *  Created on: Nov 9, 2015
 *      Author: Philipp Hinz
 */

#ifndef TIMER_H_
#define TIMER_H_

/**
 * Timer Class
 * This class allows the creation of multiple timers that are based
 * by a divider on a single system timer.
 */

class timer {
public:
	timer(void (*handler)(void));
	timer(void *(*handler)(void *));
	void setDivider(unsigned int divider);
	int getDivider();
	void call();
	void start();
	void stop();
	bool isActive();
	timer *next; /**< contains the pointer on the next timer element of the list */
private:
	void (*handler)(void);
	void *(*thandler)(void *);
	unsigned int divider;
	int id = 0; /**< needed to identify the threads */
	bool active;
	bool asThread; /**< defines if the handler should be called or not */
	pthread_t thread;
};

void initTimers(void);
void stopTimers(void);
uint32_t ms2Divider(uint64_t millisec);
void *nullThread(void *threadid);

#define SIG SIGRTMIN
#define errExit(msg)    do { perror(msg); exit(EXIT_FAILURE); } while (0)
#define CLOCKID CLOCK_REALTIME

#endif /* TIMER_H_ */