Function _mutex_update_priority

src/ipc.c:828–843

iterate over each suspended thread to update highest priority in pending threads */

#ifdef RT_USING_MUTEX
/* iterate over each suspended thread to update highest priority in pending threads */
rt_inline rt_uint8_t _mutex_update_priority(struct rt_mutex *mutex)
{
    struct rt_thread *thread;

    if (!rt_list_isempty(&mutex->parent.suspend_thread))
    {
        thread = RT_THREAD_LIST_NODE_ENTRY(mutex->parent.suspend_thread.next);
        mutex->priority = rt_sched_thread_get_curr_prio(thread);
    }
    else
    {
        mutex->priority = 0xff;
    }

    return mutex->priority;
}

/* get highest priority inside its taken object and its init priority */
rt_inline rt_uint8_t _thread_get_mutex_priority(struct rt_thread* thread)