libgfatimer/demo/main.c

#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <gfatimer.h>

#define _NANOSECS_PER_SEC					1000000000

static long long _TimeSpecDiffNs(const struct timespec *pts1, const struct timespec *pts2)
{
	long long ns1 = (long long)pts1->tv_sec * _NANOSECS_PER_SEC + pts1->tv_nsec;
	long long ns2 = (long long)pts2->tv_sec * _NANOSECS_PER_SEC + pts2->tv_nsec;
	return ns2 - ns1;
}

int main(int argc, char **argv)
{
	long long elps1, elps2;
	int tnum1 = 3, tnum2 = 14, nPulse, nOldPulse = 0;
	unsigned long tw1 = 1, tw2 = 1;
	struct timespec tsRes, tsStart, tsEnd1, tsEnd2;
	memset(&tsEnd1, 0, sizeof(tsEnd1));
	memset(&tsEnd2, 0, sizeof(tsEnd2));

	if(!GfaTimerInit(32, GTR_25ms))
	{
		printf("GfaTimerInit failed!\n");
		return 1;
	}

	tf_set(tnum1);
	tf_set(tnum2);
	tw_set(tnum1, 15000);
	tw_set(tnum2, 10000);

	clock_gettime(CLOCK_MONOTONIC, &tsStart);

	do
	{
		nPulse = cp_test(GTCP_750ms);

		if(nOldPulse != nPulse)
		{
			nOldPulse = nPulse;
			printf("Pulse 750ms %d\n", nPulse);
		}

		if(tw1)
		{
			if(!(tw1 = tw_read(tnum1)))
			{
				clock_gettime(CLOCK_MONOTONIC, &tsEnd1);
				printf("T%d expired.\n", tnum1);
			}
		}

		if(tw2)
		{
			if(!(tw2 = tw_read(tnum2)))
			{
				clock_gettime(CLOCK_MONOTONIC, &tsEnd2);
				printf("T%d expired.\n", tnum2);
			}
		}

		usleep(25000);
//		printf("T%d: %3lu, T%d: %3lu\n", tnum1, tw1, tnum2, tw2);
	}
	while(tw1 || tw2);

	elps1 = _TimeSpecDiffNs(&tsStart, &tsEnd1);
	elps2 = _TimeSpecDiffNs(&tsStart, &tsEnd2);

	printf("\nT%d effective: %lld ms.\n", tnum1, elps1 / 1000000);
	printf("T%d effective: %lld ms.\n", tnum2, elps2 / 1000000);

	return 0;
}