(*stat_series_callback) : size_t (struct stat_bucket *bucket)
struct stat_series *stat_series_create(uint32_t nbuckets,time_t bucket_us,stat_series_callback bucket_reset,void *private)
void stat_series_init(struct stat_series *s,struct stat_bucket *buckets,uint32_t nbuckets,time_t bucket_us,stat_series_callback bucket_reset,void *private)
void stat_series_reset(struct stat_series *s)
void stat_series_record(struct stat_series *s,size_t value,stat_series_callback callback)
void stat_series_advance(struct stat_series *s,time_t now_us)