Function rt_cputimer_start

components/drivers/cputime/cputimer.c:126–172

}

rt_err_t rt_cputimer_start(rt_cputimer_t timer)
{
    rt_list_t *timer_list;
    rt_base_t  level;

    /* parameter check */
    RT_ASSERT(timer != RT_NULL);
    RT_ASSERT(clock_cpu_issettimeout() != RT_FALSE);

    /* stop timer firstly */
    level = rt_hw_interrupt_disable();
    /* remove timer from list */

    rt_list_remove(&timer->row);
    /* change status of timer */
    timer->parent.flag &= ~RT_TIMER_FLAG_ACTIVATED;

    timer_list = &_cputimer_list;

    for (; timer_list != _cputimer_list.prev;
         timer_list = timer_list->next)
    {
        struct rt_cputimer *t;
        rt_list_t *p = timer_list->next;

        t = rt_list_entry(p, struct rt_cputimer, row);

        if ((t->timeout_tick - timer->timeout_tick) == 0)
        {
            continue;
        }
        else if ((t->timeout_tick - timer->timeout_tick) < 0x7fffffffffffffff)
        {
            break;
        }
    }

    rt_list_insert_after(timer_list, &(timer->row));

    timer->parent.flag |= RT_TIMER_FLAG_ACTIVATED;

    _set_next_timeout();
    /* enable interrupt */
    rt_hw_interrupt_enable(level);

    return RT_EOK;
}

rt_err_t rt_cputimer_stop(rt_cputimer_t timer)
{