forked from osmocom/wireshark
6f43fbb2f0
I've done more than a day to change the timestamp resolution from microseconds to nanoseconds. As I really don't want to loose those changes, I'm going to check in the changes I've done so far. Hopefully someone else will give me a helping hand with the things left ... What's done: I've changed the timestamp resolution from usec to nsec in almost any place in the sources. I've changed parts of the implementation in nstime.s/.h and a lot of places elsewhere. As I don't understand the editcap source (well, I'm maybe just too tired right now), hopefully someone else might be able to fix this soon. Doing all those changes, we get native nanosecond timestamp resolution in Ethereal. After fixing all the remaining issues, I'll take a look how to display this in a convenient way... As I've also changed the wiretap timestamp resolution from usec to nsec we might want to change the wiretap version number... svn path=/trunk/; revision=15520
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/* timestats.c
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* routines for time statistics
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* Copyrigth 2003 Lars Roland
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute 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 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "timestats.h"
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/* Initialize a timestat_t struct */
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void
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time_stat_init(timestat_t *stats)
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{
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stats->num = 0;
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stats->min.secs = 0;
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stats->min.nsecs = 0;
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stats->max.secs = 0;
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stats->max.nsecs = 0;
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stats->tot.secs = 0;
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stats->tot.nsecs = 0;
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}
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/* Update a timestat_t struct with a new sample */
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void
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time_stat_update(timestat_t *stats, const nstime_t *delta, packet_info *pinfo)
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{
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if(stats->num==0){
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stats->max=*delta;
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stats->max_num=pinfo->fd->num;
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stats->min=*delta;
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stats->min_num=pinfo->fd->num;
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}
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if( (delta->secs<stats->min.secs)
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||( (delta->secs==stats->min.secs)
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&&(delta->nsecs<stats->min.nsecs) ) ){
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stats->min=*delta;
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stats->min_num=pinfo->fd->num;
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}
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if( (delta->secs>stats->max.secs)
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||( (delta->secs==stats->max.secs)
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&&(delta->nsecs>stats->max.nsecs) ) ){
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stats->max=*delta;
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stats->max_num=pinfo->fd->num;
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}
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nstime_add(&stats->tot, delta);
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stats->num++;
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}
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/*
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* get_average - function
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*
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* function to calculate the average
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* returns the average as a gdouble , time base is milli seconds
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*/
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gdouble get_average(const nstime_t *sum, guint32 num)
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{
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gdouble average;
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if(num > 0) {
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average = (double)sum->secs*1000 + (double)sum->nsecs/1000000;
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average /= num;
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}
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else {
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average = 0;
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}
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return average;
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}
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