Create a new rate estimator
int gen_new_estimator(struct gnet_stats_basic_packed * bstats, struct gnet_stats_rate_est64 * rate_est, spinlock_t * stats_lock, struct nlattr * opt);
bstats
basic statistics
rate_est
rate estimator statistics
stats_lock
statistics lock
opt
rate estimator configuration TLV
Creates a new rate estimator with bstats as source and rate_est as destination. A new timer with the interval specified in the configuration TLV is created. Upon each interval, the latest statistics will be read from bstats and the estimated rate will be stored in rate_est with the statistics lock grabed during this period.
Returns 0 on success or a negative error code.