int main(int argc, char **argv)
{
long long tnow, tlast;
struct timespec t1, dtmin, dtminp, dtmax;
int print_interval = 50000;
int print_countdown = 1;
int clock_id = CLOCK_MONOTONIC;
dtmin.tv_sec = INT_MAX;
dtmin.tv_nsec = 0;
dtminp.tv_sec = INT_MAX;
dtminp.tv_nsec = 0;
dtmax.tv_sec = 0;
dtmax.tv_nsec = 0;
tlast = 0;
if(argc == 2) {
clock_id = atoi(argv[1]);
printf("using clock %d\n", clock_id);
}
clock_gettime(clock_id, &t1);
for(;;) {
struct timespec t, dt;
clock_gettime(clock_id, &t);
dt = ts_sub(t, t1);
t1 = t;
dtmin = ts_min(dtmin, dt);
if(dt.tv_sec > 0 || dt.tv_nsec > 0)
dtminp = ts_min(dtminp, dt);
if(print_countdown != print_interval)
dtmax = ts_max(dtmax, dt);
if(--print_countdown == 0) {
fprintf(stderr,"%09ld.%09ld, dt %ld.%09ld, min %ld.%09ld, minp %ld.%09ld, max %ld.%09ld\n",
t.tv_sec, t.tv_nsec, dt.tv_sec, dt.tv_nsec,
dtmin.tv_sec, dtmin.tv_nsec, dtminp.tv_sec, dtminp.tv_nsec,
dtmax.tv_sec, dtmax.tv_nsec);
print_countdown = print_interval;
}
}
for(;;) {
tnow = nanotime();
if(tnow < tlast) {
#if 0
fprintf(stderr,"time went backwards: %lld -> %lld\n",
tlast, tnow);
exit(1);
#endif
fprintf(stderr,"%lld ROLLBACK\n", tnow);
} else {
fprintf(stderr,"%lld\n", tnow);
}
tlast = tnow;
}
return 0;
}
static unsigned long ts_dos2unix(unsigned long ts)
{
unsigned int y, m, d, hh, mm, ss;
if(ts==0)
return(0);
y=ts_year(ts);
m=ts_month(ts);
d=ts_day(ts);
hh=ts_hour(ts);
mm=ts_min(ts);
ss=ts_sec(ts);
/* TODO: These assertions must be replaced by run-time check for incorrect timestamps
like 31/15/2063 or 00/00/1980, since month array is 1...12 only. */
#ifdef DEBUG
debug_assert(m>=1&&m<=12);
debug_assert(d>=1&&d<=31);
#endif
return(mk_unixtime(y, m, d, hh, mm, ss));
}
