Function adfCreateBitmap

dep/adflib/src/adf_bitm.c:299–347

* adfCreateBitmap * * create bitmap structure in vol */

 * create bitmap structure in vol
 */
RETCODE adfCreateBitmap(struct Volume *vol)
{
    int32_t nBlock, mapSize ;
    int i, j;

    nBlock = vol->lastBlock - vol->firstBlock +1 - 2;

    mapSize = nBlock / (127*32);
    if ( (nBlock%(127*32))!=0 )
        mapSize++;
    vol->bitmapSize = mapSize;

    vol->bitmapTable = (struct bBitmapBlock**)malloc( sizeof(struct bBitmapBlock*)*mapSize );
    if (!vol->bitmapTable) {
        (*adfEnv.eFct)("adfCreateBitmap : malloc, vol->bitmapTable");
        return RC_MALLOC;
    }

	vol->bitmapBlocksChg = (BOOL*) malloc(sizeof(BOOL)*mapSize);
    if (!vol->bitmapBlocksChg) {
        free(vol->bitmapTable);
        (*adfEnv.eFct)("adfCreateBitmap : malloc, vol->bitmapBlocksChg");
        return RC_MALLOC;
    }

	vol->bitmapBlocks = (SECTNUM*) malloc(sizeof(SECTNUM)*mapSize);
    if (!vol->bitmapBlocks) {
        free(vol->bitmapTable); free(vol->bitmapBlocksChg);
        (*adfEnv.eFct)("adfCreateBitmap : malloc, vol->bitmapBlocks");
        return RC_MALLOC;
    }

    for(i=0; i<mapSize; i++) {
        vol->bitmapTable[i] = (struct bBitmapBlock*)malloc(sizeof(struct bBitmapBlock));
        if (!vol->bitmapTable[i]) {
            free(vol->bitmapTable); free(vol->bitmapBlocksChg);
            for(j=0; j<i; j++) 
                free(vol->bitmapTable[j]);
            free(vol->bitmapTable);
			(*adfEnv.eFct)("adfCreateBitmap : malloc");
            return RC_MALLOC;
        }
    }

    for(i=vol->firstBlock+2; i<=(vol->lastBlock - vol->firstBlock); i++)
        adfSetBlockFree(vol, i);

    return RC_OK;
}


/*