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libserialport/test_timing.c

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2020-01-20 06:43:49 +03:00
#include "config.h"
#include "libserialport.h"
#include "libserialport_internal.h"
#include <assert.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
(void) argc;
(void) argv;
struct time a, b, c;
struct timeval tv;
struct timeout to;
printf("Testing arithmetic\n");
time_set_ms(&a, 10050);
time_set_ms(&b, 100);
assert(time_greater(&a, &b));
assert(!time_greater(&b, &a));
time_add(&a, &b, &c);
assert(time_as_ms(&c) == 10150);
time_sub(&a, &b, &c);
assert(time_as_ms(&c) == 9950);
time_as_timeval(&a, &tv);
assert(tv.tv_sec == 10);
assert(tv.tv_usec == 50000);
time_get(&a);
printf("Sleeping for 1s\n");
sleep(1);
time_get(&b);
time_sub(&b, &a, &c);
printf("Measured: %ums\n", time_as_ms(&c));
assert(time_as_ms(&c) >= 999);
assert(time_as_ms(&c) <= 1001);
printf("Starting 3s timeout\n");
timeout_start(&to, 3000);
printf("Time to wait: %dms\n", timeout_remaining_ms(&to));
printf("Sleeping for 1s\n");
sleep(1);
timeout_update(&to);
assert(!timeout_check(&to));
printf("Sleeping for 1s\n");
sleep(1);
timeout_update(&to);
assert(!timeout_check(&to));
printf("Remaining: %ums\n", timeout_remaining_ms(&to));
printf("Sleeping for 1s\n");
sleep(1);
timeout_update(&to);
assert(timeout_check(&to));
printf("Timeout expired\n");
printf("Starting 2s timeout\n");
timeout_start(&to, 2000);
printf("Limiting steps to 1s\n");
timeout_limit(&to, 1000);
printf("Time to wait: %ums\n", timeout_remaining_ms(&to));
printf("Sleeping for 1s\n");
sleep(1);
timeout_update(&to);
assert(!timeout_check(&to));
printf("Remaining: %ums\n", timeout_remaining_ms(&to));
printf("Sleeping for 1s\n");
sleep(1);
timeout_update(&to);
assert(timeout_check(&to));
printf("Timeout expired\n");
return 0;
}