Function list_sem

components/finsh/cmd.c:289–353

#ifdef RT_USING_SEMAPHORE
long list_sem(void)
{
    rt_base_t level;
    list_get_next_t find_arg;
    struct rt_object_information *info;
    rt_list_t *obj_list[LIST_FIND_OBJ_NR];
    rt_list_t *next = (rt_list_t *)RT_NULL;

    int maxlen;
    const char *item_title = "semaphore";

    list_find_init(&find_arg, RT_Object_Class_Semaphore, obj_list, sizeof(obj_list) / sizeof(obj_list[0]));
    info = rt_list_entry(find_arg.list, struct rt_object_information, object_list);

    maxlen = RT_NAME_MAX;

    rt_kprintf("%-*.*s v   suspend thread\n", maxlen, maxlen, item_title);
    object_split(maxlen);
    rt_kprintf(" --- --------------\n");

    do
    {
        next = list_get_next(next, &find_arg);
        {
            int i;
            for (i = 0; i < find_arg.nr_out; i++)
            {
                struct rt_object *obj;
                struct rt_semaphore *sem;

                obj = rt_list_entry(obj_list[i], struct rt_object, list);
                level = rt_spin_lock_irqsave(&info->spinlock);
                if ((obj->type & ~RT_Object_Class_Static) != find_arg.type)
                {
                    rt_spin_unlock_irqrestore(&info->spinlock, level);
                    continue;
                }
                rt_spin_unlock_irqrestore(&info->spinlock, level);

                sem = (struct rt_semaphore *)obj;
                if (!rt_list_isempty(&sem->parent.suspend_thread))
                {
                    rt_kprintf("%-*.*s %03d %d:",
                               maxlen, RT_NAME_MAX,
                               sem->parent.parent.name,
                               sem->value,
                               rt_list_len(&sem->parent.suspend_thread));
                    rt_susp_list_print(&(sem->parent.suspend_thread));
                    rt_kprintf("\n");
                }
                else
                {
                    rt_kprintf("%-*.*s %03d %d\n",
                               maxlen, RT_NAME_MAX,
                               sem->parent.parent.name,
                               sem->value,
                               rt_list_len(&sem->parent.suspend_thread));
                }