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			64 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			64 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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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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| 
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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 <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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| 
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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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| 
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| static void est_help(void);
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| 
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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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| 
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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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| 
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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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