criu/test/zdtm/static/rtc.c
Pavel Emelyanov 2e13f1f029 test: Get rid of live directory
Move static and transition into zdtm top. We can't move all the micro
tests themselves, as we need to distinguish static from non static (zdtm.py
makes additional checks on static ones).

Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
2016-02-20 13:40:52 +03:00

61 lines
1.1 KiB
C

#include <stdio.h>
#include <linux/rtc.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/time.h>
#include <unistd.h>
#include <stdlib.h>
#include "zdtmtst.h"
#define TEST_HZ 4
#define NR_FAILS 10
int main(int argc, char **argv)
{
unsigned long data, delta;
int fd, fail = NR_FAILS, to_pass = NR_FAILS;
struct timeval start, end;
test_init(argc, argv);
fd = open("/dev/rtc", O_RDWR);
if (fd < 0) {
pr_perror("open");
return 1;
}
if (ioctl(fd, RTC_IRQP_SET, TEST_HZ) == -1) {
pr_perror("RTC_IRQP_SET");
return 1;
}
if (ioctl(fd, RTC_PIE_ON, 0) == -1) {
pr_perror("RTC_PIE_ON");
return 1;
}
test_daemon();
gettimeofday(&start, NULL);
start.tv_usec += start.tv_sec * 1000000;
while (test_go() || to_pass--) {
if (read(fd, &data, sizeof(unsigned long)) == -1)
return 1;
gettimeofday(&end, NULL);
end.tv_usec += end.tv_sec * 1000000;
delta = end.tv_usec - start.tv_usec;
if (labs(delta - 1000000 / TEST_HZ ) > 100000) {
pr_perror("delta = %ld", delta);
fail--;
if (fail == 0)
return 1;
}
start = end;
}
pass();
return 0;
}