timer.c

/**
 * timer.c
 * Created on Aug, 23th 2023
 * Author: Tiago Barros
 * Based on "From C to C++ course - 2002"
 */

#include "timer.h"
#include <stdio.h>
#include <sys/time.h>

static struct timeval timer, now;
static int delay = -1;

void timerInit(int valueMilliSec) {
  delay = valueMilliSec;
  gettimeofday(&timer, NULL);
}

void timerDestroy() { delay = -1; }

void timerUpdateTimer(int valueMilliSec) {
  delay = valueMilliSec;
  gettimeofday(&timer, NULL);
}

int getTimeDiff() {
  gettimeofday(&now, NULL);
  long diff =
      (((now.tv_sec - timer.tv_sec) * 1000000) + now.tv_usec - timer.tv_usec) /
      1000;
  return (int)diff;
}

int timerTimeOver() {
  int ret = 0;

  if (getTimeDiff() > delay) {
    ret = 1;
    gettimeofday(&timer, NULL);
  }

  return ret;
}

void timerPrint() { printf("Timer:  %d", getTimeDiff()); }