git.ozlabs.org Git - ccan/blob - ccan/timer/test/run.c

   1 #include <ccan/timer/timer.h>
   2 /* Include the C files directly. */
   3 #include <ccan/timer/timer.c>
   4 #include <ccan/tap/tap.h>
   5
   6 static struct timeabs timeabs_from_nsec(unsigned long long nsec)
   7 {
   8         struct timeabs epoch = { { 0, 0 } };
   9         return timeabs_add(epoch, time_from_nsec(nsec));
  10 }
  11
  12 int main(void)
  13 {
  14         struct timers timers;
  15         struct timer t[64];
  16         struct list_head expired;
  17         struct timeabs earliest;
  18         uint64_t i;
  19         struct timeabs epoch = { { 0, 0 } };
  20
  21         /* This is how many tests you plan to run */
  22         plan_tests(488);
  23
  24         timers_init(&timers, epoch);
  25         ok1(timers_check(&timers, NULL));
  26         ok1(!timer_earliest(&timers, &earliest));
  27
  28         timer_add(&timers, &t[0], timeabs_from_nsec(1));
  29         ok1(timers_check(&timers, NULL));
  30         ok1(timer_earliest(&timers, &earliest));
  31         ok1(timeabs_eq(earliest, grains_to_time(t[0].time)));
  32         timer_del(&timers, &t[0]);
  33         ok1(timers_check(&timers, NULL));
  34         ok1(!timer_earliest(&timers, &earliest));
  35
  36         /* Check timer ordering. */
  37         for (i = 0; i < 32; i++) {
  38                 timer_add(&timers, &t[i*2], timeabs_from_nsec(1ULL << i));
  39                 ok1(timers_check(&timers, NULL));
  40                 timer_add(&timers, &t[i*2+1], timeabs_from_nsec((1ULL << i) + 1));
  41                 ok1(timers_check(&timers, NULL));
  42         }
  43
  44         for (i = 0; i < 32; i++) {
  45                 const struct timer *t1, *t2;
  46
  47                 t1 = get_first(&timers);
  48                 ok1(t1 == &t[i*2] || t1 == &t[i*2+1]);
  49                 timer_del(&timers, (struct timer *)t1);
  50                 ok1(timers_check(&timers, NULL));
  51
  52                 t2 = get_first(&timers);
  53                 ok1(t2 != t1 && (t2 == &t[i*2] || t2 == &t[i*2+1]));
  54                 timer_del(&timers, (struct timer *)t2);
  55                 ok1(timers_check(&timers, NULL));
  56         }
  57
  58         /* Check expiry. */
  59         for (i = 0; i < 32; i++) {
  60                 uint64_t exp = (uint64_t)TIMER_GRANULARITY << i;
  61
  62                 timer_add(&timers, &t[i*2], timeabs_from_nsec(exp));
  63                 ok1(timers_check(&timers, NULL));
  64                 timer_add(&timers, &t[i*2+1], timeabs_from_nsec(exp + 1));
  65                 ok1(timers_check(&timers, NULL));
  66         }
  67
  68         for (i = 0; i < 32; i++) {
  69                 struct timer *t1, *t2;
  70
  71                 ok1(timer_earliest(&timers, &earliest));
  72                 timers_expire(&timers, earliest, &expired);
  73
  74                 t1 = list_pop(&expired, struct timer, list);
  75                 ok1(t1);
  76                 t2 = list_pop(&expired, struct timer, list);
  77                 ok1(t2);
  78                 ok1(list_empty(&expired));
  79
  80                 ok1(t1 == &t[i*2] || t1 == &t[i*2+1]);
  81                 ok1(t2 != t1 && (t2 == &t[i*2] || t2 == &t[i*2+1]));
  82                 ok1(timers_check(&timers, NULL));
  83         }
  84
  85         ok1(!timer_earliest(&timers, &earliest));
  86
  87         timers_cleanup(&timers);
  88
  89         /* This exits depending on whether all tests passed */
  90         return exit_status();
  91 }