2 * routines for time statistics
3 * Copyrigth 2003 Lars Roland
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #include "timestats.h"
28 /* Initialize a timestat_t struct */
30 time_stat_init(timestat_t *stats)
41 /* Update a timestat_t struct with a new sample */
43 time_stat_update(timestat_t *stats, const nstime_t *delta, packet_info *pinfo)
47 stats->max_num=pinfo->fd->num;
49 stats->min_num=pinfo->fd->num;
52 if( (delta->secs<stats->min.secs)
53 ||( (delta->secs==stats->min.secs)
54 &&(delta->nsecs<stats->min.nsecs) ) ){
56 stats->min_num=pinfo->fd->num;
59 if( (delta->secs>stats->max.secs)
60 ||( (delta->secs==stats->max.secs)
61 &&(delta->nsecs>stats->max.nsecs) ) ){
63 stats->max_num=pinfo->fd->num;
66 nstime_add(&stats->tot, delta);
72 * get_average - function
74 * function to calculate the average
75 * returns the average as a gdouble , time base is milli seconds
78 gdouble get_average(const nstime_t *sum, guint32 num)
83 average = (double)sum->secs*1000 + (double)sum->nsecs/1000000;