Ejemplos de find_up_level en C++ (Cpp)

Ejemplo n.º 1

Archivo: linphoneqos.c Proyecto: micjerry/simpleqosalgorithm

static int adjust_calulator(LinhoneQos *qos, LinphoneQoslevel *curlevel, LinphoneQoslevel *newlevel, int isup)
{
    if (!qos || !curlevel || !newlevel)
        return 1;

    if (0 == qos->initial_level.size)
        qos->initial_level.size = curlevel->size;

    if (isup) {
        return find_up_level(curlevel, newlevel, qos->initial_level.size);
    } else {
        return find_down_level(curlevel, newlevel);
    }

    return 1;
}

Ejemplo n.º 2

Archivo: k_mm.c Proyecto: wosayttn/aos

void *k_mm_alloc(k_mm_head *mmhead, size_t size)
{
    void        *retptr;
    k_mm_list_t *get_b, *new_b, *next_b;
    int32_t      level;
    size_t       left_size;
    size_t       req_size = size;
#if (RHINO_CONFIG_MM_BLK > 0)
    mblk_pool_t *mm_pool;
#endif

    (void)req_size;

    if (!mmhead) {
        return NULL;
    }

    if (size == 0) {
        return NULL;
    }

    MM_CRITICAL_ENTER(mmhead);

#if (RHINO_CONFIG_MM_BLK > 0)
    /* little blk, try to get from mm_pool */
    if (mmhead->fix_pool != NULL) {
        mm_pool = (mblk_pool_t *)mmhead->fix_pool;
        if (size <= RHINO_CONFIG_MM_BLK_SIZE && mm_pool->blk_avail > 0) {
            retptr =  k_mm_smallblk_alloc(mmhead, size);
            if (retptr) {
                MM_CRITICAL_EXIT(mmhead);
                return retptr;
            }
        }
    }
#endif

    retptr = NULL;

    size = MM_ALIGN_UP(size);
    size = size < MM_MIN_SIZE ? MM_MIN_SIZE : size;

    if ((level = size_to_level(size)) == -1) {
        goto ALLOCEXIT;
    }

    /* try to find in higher level */
    get_b = find_up_level(mmhead, level);
    if (get_b == NULL) {
        /* try to find in same level */
        get_b = mmhead->freelist[level];
        while ( get_b != NULL ) {
            if ( MM_GET_BUF_SIZE(get_b) >= size ) {
                break;
            }
            get_b = get_b->mbinfo.free_ptr.next;
        }

        if ( get_b == NULL ) {
            /* do not find availalbe freeblk */
            goto ALLOCEXIT;
        }
    }
    k_mm_freelist_delete(mmhead, get_b);

    next_b = MM_GET_NEXT_BLK(get_b);

    /* Should the block be split? */
    if (MM_GET_BUF_SIZE(get_b) >= size + MMLIST_HEAD_SIZE + MM_MIN_SIZE) {
        left_size = MM_GET_BUF_SIZE(get_b) - size - MMLIST_HEAD_SIZE;

        get_b->buf_size = size | (get_b->buf_size & RHINO_MM_PRESTAT_MASK);
        new_b = MM_GET_NEXT_BLK(get_b);

        new_b->prev = get_b;
        new_b->buf_size = left_size | RHINO_MM_FREE | RHINO_MM_PREVALLOCED;
#if (RHINO_CONFIG_MM_DEBUG > 0u)
        new_b->dye   = RHINO_MM_FREE_DYE;
        new_b->owner = 0;
#endif
        next_b->prev = new_b;
        k_mm_freelist_insert(mmhead, new_b);
    } else {
        next_b->buf_size &= (~RHINO_MM_PREVFREE);
    }
    get_b->buf_size &= (~RHINO_MM_FREE);       /* Now it's used */

#if (RHINO_CONFIG_MM_DEBUG > 0u)
    get_b->dye   = RHINO_MM_CORRUPT_DYE;
    get_b->owner = 0;
#endif
    retptr = (void *)get_b->mbinfo.buffer;
    if (retptr != NULL) {
        stats_addsize(mmhead, MM_GET_BLK_SIZE(get_b), req_size);
    }

ALLOCEXIT:

    MM_CRITICAL_EXIT(mmhead);

    return retptr ;
}