int create_hw_contingent_rras(rrd_t *rrd, unsigned short period,
unsigned long hashed_name);
int lookup_seasonal(rrd_t *rrd, unsigned long rra_idx, unsigned long rra_start,
int create_hw_contingent_rras(rrd_t *rrd, unsigned short period,
unsigned long hashed_name);
int lookup_seasonal(rrd_t *rrd, unsigned long rra_idx, unsigned long rra_start,