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#include <math.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <time.h>
#include "unit.h"
#include "checkpoint_schedule.h"
static inline bool
feq(double a, double b)
{
return fabs(a - b) <= 1;
}
int
main()
{
header();
plan(38);
srand(time(NULL));
double now = rand();
struct checkpoint_schedule sched;
checkpoint_schedule_cfg(&sched, now, 0);
is(checkpoint_schedule_timeout(&sched, now), 0,
"checkpointing disabled - timeout after configuration");
now += rand();
is(checkpoint_schedule_timeout(&sched, now), 0,
"checkpointing disabled - timeout after sleep");
checkpoint_schedule_reset(&sched, now);
is(checkpoint_schedule_timeout(&sched, now), 0,
"checkpointing disabled - timeout after reset");
double intervals[] = { 100, 600, 1200, 1800, 3600, };
int intervals_len = sizeof(intervals) / sizeof(intervals[0]);
for (int i = 0; i < intervals_len; i++) {
double interval = intervals[i];
checkpoint_schedule_cfg(&sched, now, interval);
double t = checkpoint_schedule_timeout(&sched, now);
ok(t >= interval && t <= interval * 2,
"checkpoint interval %.0lf - timeout after configuration",
interval);
double t0;
for (int j = 0; j < 100; j++) {
checkpoint_schedule_cfg(&sched, now, interval);
t0 = checkpoint_schedule_timeout(&sched, now);
if (fabs(t - t0) > interval / 4)
break;
}
ok(fabs(t - t0) > interval / 4,
"checkpoint interval %.0lf - initial timeout randomization",
interval);
now += t0 / 2;
t = checkpoint_schedule_timeout(&sched, now);
ok(feq(t, t0 / 2),
"checkpoint interval %.0lf - timeout after sleep 1",
interval);
now += t0 / 2;
t = checkpoint_schedule_timeout(&sched, now);
ok(feq(t, interval),
"checkpoint interval %.0lf - timeout after sleep 2",
interval);
now += interval / 2;
t = checkpoint_schedule_timeout(&sched, now);
ok(feq(t, interval / 2),
"checkpoint interval %.0lf - timeout after sleep 3",
interval);
now += interval;
t = checkpoint_schedule_timeout(&sched, now);
ok(feq(t, interval / 2),
"checkpoint interval %.0lf - timeout after sleep 4",
interval);
checkpoint_schedule_reset(&sched, now);
t = checkpoint_schedule_timeout(&sched, now);
ok(feq(t, interval),
"checkpoint interval %.0lf - timeout after reset",
interval);
}
check_plan();
footer();
return 0;
}
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