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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* m_estimator.c Parse/print estimator module options.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include "utils.h"
#include "tc_util.h"
#include "tc_common.h"
static void est_help(void);
static void est_help(void)
{
fprintf(stderr,
"Usage: ... estimator INTERVAL TIME-CONST\n"
" INTERVAL is interval between measurements\n"
" TIME-CONST is averaging time constant\n"
"Example: ... est 1sec 8sec\n");
}
int parse_estimator(int *p_argc, char ***p_argv, struct tc_estimator *est)
{
int argc = *p_argc;
char **argv = *p_argv;
unsigned int A, time_const;
NEXT_ARG();
if (est->ewma_log)
duparg("estimator", *argv);
if (matches(*argv, "help") == 0)
est_help();
if (get_time(&A, *argv))
invarg("estimator", "invalid estimator interval");
NEXT_ARG();
if (matches(*argv, "help") == 0)
est_help();
if (get_time(&time_const, *argv))
invarg("estimator", "invalid estimator time constant");
if (tc_setup_estimator(A, time_const, est) < 0) {
fprintf(stderr, "Error: estimator parameters are out of range.\n");
return -1;
}
if (show_raw)
fprintf(stderr, "[estimator i=%hhd e=%u]\n", est->interval, est->ewma_log);
*p_argc = argc;
*p_argv = argv;
return 0;
}
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