Function db_allocate_rows

db/db_res.c:151–174

* Allocate storage for rows in existing * result structure. */

 * result structure.
 */
int db_allocate_rows(db_res_t* _res, const unsigned int rows)
{
	unsigned int i;

	RES_ROWS(_res) = (struct db_row*)pkg_malloc
		(rows * (sizeof(db_row_t) + sizeof(db_val_t) * RES_COL_N(_res)) );
	if (!RES_ROWS(_res)) {
		LM_ERR("no memory left\n");
		return -1;
	}
	memset( RES_ROWS(_res), 0 ,
		rows * (sizeof(db_row_t) + sizeof(db_val_t) * RES_COL_N(_res)));

	LM_DBG("allocate %d bytes for result rows and values at %p\n",
		(int)(rows * (sizeof(db_row_t) + sizeof(db_val_t) * RES_COL_N(_res))),
		RES_ROWS(_res));

	for( i=0 ; i<rows ; i++ )
		/* the values of the row i */
		ROW_VALUES( &(RES_ROWS(_res)[i]) ) =
			((db_val_t*)(void *)(RES_ROWS(_res)+rows)) + RES_COL_N(_res)*i;

	return 0;
}

/*
 * Extend storage for rows in existing result structure.