From Lars Roland:

	Add Response-Time statistics for each known mgcp message-type.

	Fix a few bugs and remove trailing whitespace.

	Use "gdouble" for printing time-values and calculating the
	average.  It is easier to use and shouldn't overflow on big
	trace files like "guint32".

	Move some functions for time statistics into the new file
	timestats.c in the main directory.  This code may be useful in
	the rpc and smb rtt-taps as well.

svn path=/trunk/; revision=7469

1 files changed, 53 insertions, 0 deletions

diff --git a/timestats.h b/timestats.h
new file mode 100644
index 0000000000..8f584ef173
--- /dev/null
+++ b/timestats.h
@@ -0,0 +1,53 @@
+/* timestats.h
+ * Routines and definitions for time statistics
+ * Copyrigth 2003 Lars Roland
+ *
+ * $Id: timestats.h,v 1.1 2003/04/16 07:24:04 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * 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 */
+extern void get_timedelta(nstime_t *delta, nstime_t *b, nstime_t *a ); /* delta = b - a */
+extern void addtime(nstime_t *sum, nstime_t *a); 			/* sum += a */
+
+extern gdouble nstime_to_msec(nstime_t *time); /* converts nstime to gdouble, time base is milli seconds*/
+
+extern void time_stat_update(timestat_t *stats, nstime_t *delta, packet_info *pinfo);
+extern gdouble get_average(nstime_t *sum, guint32 num);
+
+#endif