Function _thread_get_mutex_priority

src/ipc.c:846–866

get highest priority inside its taken object and its init 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)
{
    rt_list_t *node = RT_NULL;
    struct rt_mutex *mutex = RT_NULL;
    rt_uint8_t priority = rt_sched_thread_get_init_prio(thread);

    rt_list_for_each(node, &(thread->taken_object_list))
    {
        mutex = rt_list_entry(node, struct rt_mutex, taken_list);
        rt_uint8_t mutex_prio = mutex->priority;
        /* prio at least be priority ceiling */
        mutex_prio = mutex_prio < mutex->ceiling_priority ? mutex_prio : mutex->ceiling_priority;

        if (priority > mutex_prio)
        {
            priority = mutex_prio;
        }
    }

    return priority;
}

/* update priority of target thread and the thread suspended it if any */
rt_inline void _thread_update_priority(struct rt_thread *thread, rt_uint8_t priority, int suspend_flag)