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