|
Packit |
d3f73b |
/*
|
|
Packit |
d3f73b |
* m_estimator.c Parse/print estimator module options.
|
|
Packit |
d3f73b |
*
|
|
Packit |
d3f73b |
* This program is free software; you can u32istribute it and/or
|
|
Packit |
d3f73b |
* modify it under the terms of the GNU General Public License
|
|
Packit |
d3f73b |
* as published by the Free Software Foundation; either version
|
|
Packit |
d3f73b |
* 2 of the License, or (at your option) any later version.
|
|
Packit |
d3f73b |
*
|
|
Packit |
d3f73b |
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
|
|
Packit |
d3f73b |
*
|
|
Packit |
d3f73b |
*/
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
#include <stdio.h>
|
|
Packit |
d3f73b |
#include <stdlib.h>
|
|
Packit |
d3f73b |
#include <unistd.h>
|
|
Packit |
d3f73b |
#include <fcntl.h>
|
|
Packit |
d3f73b |
#include <sys/socket.h>
|
|
Packit |
d3f73b |
#include <netinet/in.h>
|
|
Packit |
d3f73b |
#include <arpa/inet.h>
|
|
Packit |
d3f73b |
#include <string.h>
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
#include "utils.h"
|
|
Packit |
d3f73b |
#include "tc_util.h"
|
|
Packit |
d3f73b |
#include "tc_common.h"
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
static void est_help(void);
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
static void est_help(void)
|
|
Packit |
d3f73b |
{
|
|
Packit |
d3f73b |
fprintf(stderr,
|
|
Packit |
d3f73b |
"Usage: ... estimator INTERVAL TIME-CONST\n"
|
|
Packit |
d3f73b |
" INTERVAL is interval between measurements\n"
|
|
Packit |
d3f73b |
" TIME-CONST is averaging time constant\n"
|
|
Packit |
d3f73b |
"Example: ... est 1sec 8sec\n");
|
|
Packit |
d3f73b |
}
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
int parse_estimator(int *p_argc, char ***p_argv, struct tc_estimator *est)
|
|
Packit |
d3f73b |
{
|
|
Packit |
d3f73b |
int argc = *p_argc;
|
|
Packit |
d3f73b |
char **argv = *p_argv;
|
|
Packit |
d3f73b |
unsigned int A, time_const;
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
NEXT_ARG();
|
|
Packit |
d3f73b |
if (est->ewma_log)
|
|
Packit |
d3f73b |
duparg("estimator", *argv);
|
|
Packit |
d3f73b |
if (matches(*argv, "help") == 0)
|
|
Packit |
d3f73b |
est_help();
|
|
Packit |
d3f73b |
if (get_time(&A, *argv))
|
|
Packit |
d3f73b |
invarg("estimator", "invalid estimator interval");
|
|
Packit |
d3f73b |
NEXT_ARG();
|
|
Packit |
d3f73b |
if (matches(*argv, "help") == 0)
|
|
Packit |
d3f73b |
est_help();
|
|
Packit |
d3f73b |
if (get_time(&time_const, *argv))
|
|
Packit |
d3f73b |
invarg("estimator", "invalid estimator time constant");
|
|
Packit |
d3f73b |
if (tc_setup_estimator(A, time_const, est) < 0) {
|
|
Packit |
d3f73b |
fprintf(stderr, "Error: estimator parameters are out of range.\n");
|
|
Packit |
d3f73b |
return -1;
|
|
Packit |
d3f73b |
}
|
|
Packit |
d3f73b |
if (show_raw)
|
|
Packit |
d3f73b |
fprintf(stderr, "[estimator i=%u e=%u]\n", est->interval, est->ewma_log);
|
|
Packit |
d3f73b |
*p_argc = argc;
|
|
Packit |
d3f73b |
*p_argv = argv;
|
|
Packit |
d3f73b |
return 0;
|
|
Packit |
d3f73b |
}
|