Function timer_delete

components/libc/compilers/common/ctime.c:1052–1096

* @brief Delete a per-process timer. * * See IEEE 1003.1 */

 * See IEEE 1003.1
 */
int timer_delete(timer_t timerid)
{
    struct timer_obj *timer;
    rt_ubase_t ktimerid;

    ktimerid = (rt_ubase_t)timerid;

    if (ktimerid < 0 || ktimerid >= TIMER_ID_MAX)
    {
        rt_set_errno(EINVAL);
        return -1;
    }

    RT_DEBUG_NOT_IN_INTERRUPT;
    rt_spin_lock(&_timer_id_lock);
    timer = _g_timerid[ktimerid];
    if (timer != NULL)
    {
        _g_timerid[ktimerid] = RT_NULL;
        resource_id_put(&id_timer, ktimerid);
    }
    rt_spin_unlock(&_timer_id_lock);

    if (timer == RT_NULL)
    {
        rt_set_errno(EINVAL);
        LOG_D("can not find timer %ld", ktimerid);
        return -1;
    }

    if (timer->status == ACTIVE)
    {
        timer->status = NOT_ACTIVE;
        rt_ktime_hrtimer_stop(&timer->hrtimer);
    }
    rt_ktime_hrtimer_detach(&timer->hrtimer);

#ifdef RT_USING_SMART
    if (timer->pid)
        rt_list_remove(&timer->lwp_node);
    rt_free(timer->work);
#endif
    rt_free(timer);
    return 0;
}
RTM_EXPORT(timer_delete);

/**