forked from osmocom/wireshark
139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
/* io_graph_item.h
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* Definitions and functions for IO graph items
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*
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* Copied from gtk/io_stat.c, (c) 2002 Ronnie Sahlberg
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later*/
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#include "config.h"
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#include <epan/epan_dissect.h>
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#include "ui/io_graph_item.h"
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int get_io_graph_index(packet_info *pinfo, int interval) {
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nstime_t time_delta;
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/*
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* Find in which interval this is supposed to go and store the interval index as idx
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*/
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time_delta = pinfo->rel_ts;
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if (time_delta.nsecs<0) {
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time_delta.secs--;
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time_delta.nsecs += 1000000000;
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}
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if (time_delta.secs<0) {
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return -1;
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}
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return (int) ((time_delta.secs*1000 + time_delta.nsecs/1000000) / interval);
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}
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GString *check_field_unit(const char *field_name, int *hf_index, io_graph_item_unit_t item_unit)
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{
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GString *err_str = NULL;
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if (item_unit >= IOG_ITEM_UNIT_CALC_SUM) {
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header_field_info *hfi;
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const char *item_unit_names[NUM_IOG_ITEM_UNITS] = {
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"Packets",
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"Bytes",
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"Bits",
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"SUM",
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"COUNT FRAMES",
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"COUNT FIELDS",
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"MAX",
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"MIN",
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"AVG",
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"LOAD"
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};
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/* There was no field specified */
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if ((field_name == NULL) || (field_name[0] == 0)) {
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err_str = g_string_new("You didn't specify a field name.");
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return err_str;
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}
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/* The field could not be found */
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hfi = proto_registrar_get_byname(field_name);
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if (hfi == NULL) {
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err_str = g_string_new("");
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g_string_printf(err_str, "There is no field named '%s'.", field_name);
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return err_str;
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}
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if (hf_index) *hf_index = hfi->id;
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/* Check that the type is compatible */
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switch (hfi->type) {
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case FT_UINT8:
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case FT_UINT16:
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case FT_UINT24:
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case FT_UINT32:
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case FT_UINT64:
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case FT_INT8:
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case FT_INT16:
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case FT_INT24:
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case FT_INT32:
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case FT_INT64:
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case FT_FLOAT:
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case FT_DOUBLE:
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/* These values support all calculations except LOAD */
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switch (item_unit) {
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case IOG_ITEM_UNIT_CALC_LOAD:
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err_str = g_string_new("LOAD is only supported for relative-time fields.");
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default:
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break;
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}
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/* These types support all calculations */
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break;
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case FT_RELATIVE_TIME:
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/* This type only supports COUNT, MAX, MIN, AVG */
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switch (item_unit) {
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case IOG_ITEM_UNIT_CALC_SUM:
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case IOG_ITEM_UNIT_CALC_FRAMES:
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case IOG_ITEM_UNIT_CALC_FIELDS:
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case IOG_ITEM_UNIT_CALC_MAX:
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case IOG_ITEM_UNIT_CALC_MIN:
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case IOG_ITEM_UNIT_CALC_AVERAGE:
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case IOG_ITEM_UNIT_CALC_LOAD:
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break;
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default:
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g_assert(item_unit < NUM_IOG_ITEM_UNITS);
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err_str = g_string_new("");
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g_string_printf(err_str, "\"%s\" is a relative-time field. %s calculations are not supported on it.",
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field_name,
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item_unit_names[item_unit]);
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}
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break;
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default:
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if ((item_unit != IOG_ITEM_UNIT_CALC_FRAMES) &&
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(item_unit != IOG_ITEM_UNIT_CALC_FIELDS)) {
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err_str = g_string_new("");
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g_string_printf(err_str, "\"%s\" doesn't have integral or float values. %s calculations are not supported on it.",
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field_name,
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item_unit_names[item_unit]);
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}
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break;
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}
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}
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return err_str;
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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