C++ (Cpp) sf_sdlist_init 예제들

예제 #1

파일: mempool.c 프로젝트: anarey/snort

int mempool_init(MemPool *mempool, PoolCount num_objects, size_t obj_size)
{
    PoolCount i;

    if(mempool == NULL)
        return 1;

    if(num_objects < 1)
        return 1;

    if(obj_size < 1)
        return 1;

    mempool->obj_size = obj_size;

    /* this is the basis pool that represents all the *data pointers
       in the list */
    mempool->datapool = calloc(num_objects, obj_size);
    if(mempool->datapool == NULL)
        return 1;

    mempool->listpool = calloc(num_objects, sizeof(SDListItem));
    if(mempool->listpool == NULL)
    {
        /* well, that sucked, lets clean up */
        ErrorMessage("%s(%d) mempool_init(): listpool is null\n",
                     __FILE__, __LINE__);
        mempool_free_pools(mempool);
        return 1;
    }

    mempool->bucketpool = calloc(num_objects, sizeof(MemBucket));
    if(mempool->bucketpool == NULL)
    {
        ErrorMessage("%s(%d) mempool_init(): bucketpool is null\n",
                     __FILE__, __LINE__);
        mempool_free_pools(mempool);
        return 1;
    }

    /* sets up the 2 memory lists */
    if(sf_sdlist_init(&mempool->used_list, NULL))
    {
        ErrorMessage("%s(%d) mempool_init(): Failed to initialize used list\n",
                     __FILE__, __LINE__);
        mempool_free_pools(mempool);
        return 1;
    }

    if(sf_sdlist_init(&mempool->free_list, NULL))
    {
        ErrorMessage("%s(%d) mempool_init(): Failed to initialize free list\n",
                     __FILE__, __LINE__);
        mempool_free_pools(mempool);
        return 1;
    }


    for(i=0; i<num_objects; i++)
    {
        SDListItem *itemp;
        MemBucket *bp;

        bp = &mempool->bucketpool[i];
        itemp = &mempool->listpool[i];

        /* each bucket knows where it resides in the list */
        bp->key = itemp;

#ifdef TEST_MEMPOOL
        printf("listpool: %p itemp: %p diff: %u\n",
               mempool->listpool, itemp,
               (((char *) itemp) - ((char *) mempool->listpool)));
#endif

        bp->data = ((char *) mempool->datapool) + (i * mempool->obj_size);

#ifdef TEST_MEMPOOL
        printf("datapool: %p bp.data: %p diff: %u\n",
               mempool->datapool,
               mempool->datapool + (i * mempool->obj_size),
               (((char *) bp->data) - ((char *) mempool->datapool)));
#endif

        if(sf_sdlist_append(&mempool->free_list,
                            &mempool->bucketpool[i],
                            &mempool->listpool[i]))
        {
            ErrorMessage("%s(%d) mempool_init(): Failed to add to free list\n",
                         __FILE__, __LINE__);
            mempool_free_pools(mempool);
            return 1;
        }

        mempool->total++;
    }

    return 0;
}

예제 #2

파일: mempool.c 프로젝트: rgmabs19357/fzsvn

int mempool_init(MemPool *mempool, PoolCount num_objects, size_t obj_size)
{
    PoolCount i;
    
    if(mempool == NULL)
        return 1;

    if(num_objects < 1)
        return 1;

    if(obj_size < 1)
        return 1;

    mempool->obj_size = obj_size;
    
    /* this is the basis pool that represents all the *data pointers
       in the list */
    mempool->datapool = calloc(num_objects, obj_size);
    
    
    if(mempool->datapool == NULL)
    {
        return 1;
    }

    mempool->listpool = calloc(num_objects, sizeof(SDListItem));

    if(mempool->listpool == NULL)
    {
        /* well, that sucked, lets clean up */
        fprintf(stderr, "mempool: listpool is null\n");
        free(mempool->datapool);
        return 1;
    }

    mempool->bucketpool = calloc(num_objects, sizeof(MemBucket));

    if(mempool->bucketpool == NULL)
    {
        fprintf(stderr, "mempool: bucketpool is null\n");
        free(mempool->datapool);
        free(mempool->listpool);
        return 1;
    }

    /* sets up the 2 memory lists */
    if(sf_sdlist_init(&mempool->used_list, NULL))
    {
        fprintf(stderr, "mempool: used_list failed\n");
        free(mempool->datapool);
        free(mempool->listpool);
        free(mempool->bucketpool);
        return 1;
    }

    if(sf_sdlist_init(&mempool->free_list, NULL))
    {
        fprintf(stderr, "mempool: free_list failed\n");
        free(mempool->datapool);
        free(mempool->listpool);
        free(mempool->bucketpool);
        return 1;
    }


    for(i=0; i<num_objects; i++)
    {
        SDListItem *itemp;
        MemBucket *bp;

        bp = &mempool->bucketpool[i];
        itemp = &mempool->listpool[i];
        
        /* each bucket knows where it resides in the list */
        bp->key = itemp;

#ifdef TEST_MEMPOOL        
        printf("listpool: %p itemp: %p diff: %u\n",
               mempool->listpool, itemp,
               (((char *) itemp) -
                ((char *) mempool->listpool)));
#endif /* TEST_MEMPOOL */
               
        bp->data = ((char *) mempool->datapool) + (i * mempool->obj_size);
        
#ifdef TEST_MEMPOOL        
        printf("datapool: %p bp.data: %p diff: %u\n",
               mempool->datapool,
               mempool->datapool + (i * mempool->obj_size),
               (((char *) bp->data) -
                ((char *) mempool->datapool)));
#endif /* TEST_MEMPOOL */
        

        if(sf_sdlist_append(&mempool->free_list,                           
                            &mempool->bucketpool[i],
                            &mempool->listpool[i]))
        {
            fprintf(stderr, "mempool: free_list_append failed\n");
            free(mempool->datapool);
            free(mempool->listpool);
            free(mempool->bucketpool);
            return 1;
        }

        mempool->free++;
    }

    mempool->used = 0;
    mempool->total = num_objects;
    
    return 0;
}