Function rt_sem_delete

src/ipc.c:506–526

* @brief This function will delete a semaphore object and release the memory space. * * @note This function is used to delete a semaphore object which is created by the rt_sem_create() function. * By contrast, the rt_sem_detach() function will detach a static semaphore object. * When the semaphore is successfully deleted, it will resume all suspended threads in the s

 *           ONLY USE the rt_sem_detach() function to complete the detachment.
 */
rt_err_t rt_sem_delete(rt_sem_t sem)
{
    rt_ubase_t level;

    /* parameter check */
    RT_ASSERT(sem != RT_NULL);
    RT_ASSERT(rt_object_get_type(&sem->parent.parent) == RT_Object_Class_Semaphore);
    RT_ASSERT(rt_object_is_systemobject(&sem->parent.parent) == RT_FALSE);

    RT_DEBUG_NOT_IN_INTERRUPT;

    level = rt_spin_lock_irqsave(&(sem->spinlock));
    /* wakeup all suspended threads */
    rt_susp_list_resume_all(&(sem->parent.suspend_thread), RT_ERROR);
    rt_spin_unlock_irqrestore(&(sem->spinlock), level);

    /* delete semaphore object */
    rt_object_delete(&(sem->parent.parent));

    return RT_EOK;
}
RTM_EXPORT(rt_sem_delete);
#endif /* RT_USING_HEAP */