Function rt_spin_lock_irqsave

src/cpu_up.c:73–81

* @brief This function will disable the local interrupt and then lock the spinlock, will lock the thread scheduler. * * @note If the spinlock is locked, the current CPU will keep polling the spinlock state * until the spinlock is unlocked. * * @param lock is a pointer to the spinlock. * * @return Return current cpu interrupt status. */

 * @return  Return current cpu interrupt status.
 */
rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock)
{
    rt_base_t level;
    RT_UNUSED(lock);
    level = rt_hw_interrupt_disable();
    rt_enter_critical();
    RT_SPIN_LOCK_DEBUG(lock);
    return level;
}

/**
 * @brief   This function will unlock the spinlock and then restore current cpu interrupt status, will unlock the thread scheduler.