test_timing.c

   1 #include "config.h"
   2 #include "libserialport.h"
   3 #include "libserialport_internal.h"
   4 #include <assert.h>
   5 #include <unistd.h>
   6
   7 int main(int argc, char *argv[])
   8 {
   9         (void) argc;
  10         (void) argv;
  11         struct time a, b, c;
  12         struct timeval tv;
  13         struct timeout to;
  14         printf("Testing arithmetic\n");
  15         time_set_ms(&a, 10050);
  16         time_set_ms(&b, 100);
  17         assert(time_greater(&a, &b));
  18         assert(!time_greater(&b, &a));
  19         time_add(&a, &b, &c);
  20         assert(time_as_ms(&c) == 10150);
  21         time_sub(&a, &b, &c);
  22         assert(time_as_ms(&c) == 9950);
  23         time_as_timeval(&a, &tv);
  24         assert(tv.tv_sec == 10);
  25         assert(tv.tv_usec == 50000);
  26         time_get(&a);
  27         printf("Sleeping for 1s\n");
  28         sleep(1);
  29         time_get(&b);
  30         time_sub(&b, &a, &c);
  31         printf("Measured: %ums\n", time_as_ms(&c));
  32         assert(time_as_ms(&c) >= 999);
  33         assert(time_as_ms(&c) <= 1001);
  34         printf("Starting 3s timeout\n");
  35         timeout_start(&to, 3000);
  36         printf("Time to wait: %dms\n", timeout_remaining_ms(&to));
  37         printf("Sleeping for 1s\n");
  38         sleep(1);
  39         timeout_update(&to);
  40         assert(!timeout_check(&to));
  41         printf("Sleeping for 1s\n");
  42         sleep(1);
  43         timeout_update(&to);
  44         assert(!timeout_check(&to));
  45         printf("Remaining: %ums\n", timeout_remaining_ms(&to));
  46         printf("Sleeping for 1s\n");
  47         sleep(1);
  48         timeout_update(&to);
  49         assert(timeout_check(&to));
  50         printf("Timeout expired\n");
  51         printf("Starting 2s timeout\n");
  52         timeout_start(&to, 2000);
  53         printf("Limiting steps to 1s\n");
  54         timeout_limit(&to, 1000);
  55         printf("Time to wait: %ums\n", timeout_remaining_ms(&to));
  56         printf("Sleeping for 1s\n");
  57         sleep(1);
  58         timeout_update(&to);
  59         assert(!timeout_check(&to));
  60         printf("Remaining: %ums\n", timeout_remaining_ms(&to));
  61         printf("Sleeping for 1s\n");
  62         sleep(1);
  63         timeout_update(&to);
  64         assert(timeout_check(&to));
  65         printf("Timeout expired\n");
  66         return 0;
  67 }