etime_t alarm_gettime(alarm_t a) {
#if 0
now = time_of_secs_usecs(tv.tv_sec, tv.tv_usec) ;
/* Yuck!! BUG!!
*/
if (time_gt(last, now)) {
#if 0
eprintf("SYS:gettime:time going backwards %d usecs\n",
(int)(last.usecs - now.usecs)) ;
#endif
return last ;
}
last = now ;
return now ;
#endif
return a->gettime(a->env) ;
}
int timer_exp (struct timespec *now, struct timespec *b, struct timespec *res)
{
struct timespec now_te, *ptr_te;
if ( now == NULL )
{
clock_gettime (CLOCK_MONOTONIC, &now_te);
ptr_te = &now_te;
}
else
ptr_te = now;
if (res != NULL)
time_diff (b, ptr_te, res);
if (time_gt(b, pte_te))
return 0;
return 1;
}
void time_diff (struct timespec *a, struct timespec *b, struct timespec *res)
{
if (time_gt (a, b))
{
res->tv_sec = a->tv_sec - b->tv_sec;
res->tv_nsec = a->tv_nsec - b->tv_nsec;
if (res->tv_nsec < 0)
{
res->tv_nsec = NSSECOND + res->tv_nsec;
res->tv_sec = res->tv_sec -1;
}
}
else
{
res->tv_sec = b->tv_sec - a->tv_sec;
res->tv_nsec = b->tv_nsec - a->tv_nsec;
if (res->tv_nsec < 0)
{
res->tv_nsec = NSSECOND + res->tv_nsec;
res->tv_sec = res->tv_sec -1;
}
}
return;
}
