Function sys_setitimer

components/lwp/lwp_syscall.c:10859–10876

* @brief Set the value of an interval timer. * * This function is used to set the value of a specified timer that generates periodic signals * after the specified intervals. The timer can be configured to generate a signal when it expires, * and it can be used for tasks like scheduling periodic events. * * @param[in] which Specifies which timer to set. Possible values include: *

 * @see sys_getitimer(), sigaction(), alarm(), setitimer().
 */
sysret_t sys_setitimer(int which, const struct itimerspec *restrict new, struct itimerspec *restrict old)
{
    sysret_t rc = 0;
    rt_lwp_t lwp = lwp_self();
    struct itimerspec new_value_k;
    struct itimerspec old_value_k;

    if (lwp_get_from_user(&new_value_k, (void *)new, sizeof(*new)) != sizeof(*new))
    {
        return -EFAULT;
    }

    rc = lwp_signal_setitimer(lwp, which, &new_value_k, &old_value_k);
    if (old && lwp_put_to_user(old, (void *)&old_value_k, sizeof old_value_k) != sizeof old_value_k)
        return -EFAULT;

    return rc;
}

/**
 * @brief Set the robust list for the current thread.