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/* timestats.h
 * Routines and definitions for time statistics
 * Copyrigth 2003 Lars Roland
 * $Id: timestats.h 18197 2006-05-21 05:12:17Z sahlberg $
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

#ifndef _time_stat
#define _time_stat

#include <glib.h>
#include "epan/packet_info.h"
#include "epan/nstime.h"

 /* Summary of time statistics*/
typedef struct _timestat_t {
      guint32 num;       /* number of samples */
      guint32     min_num; /* frame number of minimum */
      guint32     max_num; /* frame number of maximum */
      nstime_t min;
      nstime_t max;
      nstime_t tot;
      gdouble variance;
} timestat_t;

/* functions */

/* Initialize a timestat_t struct */
extern void time_stat_init(timestat_t *stats);

/* Update a timestat_t struct with a new sample */
extern void time_stat_update(timestat_t *stats, const nstime_t *delta, packet_info *pinfo);

extern gdouble get_average(const nstime_t *sum, guint32 num);


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