Function timerfd_time_operation

components/libc/posix/io/timerfd/timerfd.c:345–361

}

static void timerfd_time_operation(time_t *sec, long *nsec)
{
    if (*nsec < 0)
    {
        if (*sec > 0)
        {
            *sec -= 1;
            *nsec = 1 * SEC_TO_NSEC + *nsec;
        }
    }

    if (*sec < 0 || *nsec < 0)
    {
        *sec = 0;
        *nsec = 0;
    }
}

static int timerfd_do_settime(int fd, int flags, const struct itimerspec *new, struct itimerspec *old)
{