2 * tc_core.c TC core library.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
19 #include <sys/socket.h>
20 #include <netinet/in.h>
21 #include <arpa/inet.h>
26 int tc_setup_estimator(unsigned A, unsigned time_const, struct tc_estimator *est)
28 for (est->interval=0; est->interval<=5; est->interval++) {
29 if (A <= (1<<est->interval)*(1000000/4))
32 if (est->interval > 5)
35 for (est->ewma_log=1; est->ewma_log<32; est->ewma_log++) {
36 double w = 1.0 - 1.0/(1<<est->ewma_log);
37 if (A/(-log(w)) > time_const)
41 if (est->ewma_log==0 || est->ewma_log >= 31)