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slurm.c
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slurm.c
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/******************************************************************************
*
* slurm - yet another network load monitor
*
* slurm started as a FreeBSD port of the Linux ppp link monitor called
* pppstatus by Gabriel Montenegro.
* I ripped of the ppp dependend parts and the email checks to turn in into
* a generic network load monitor running on all common Unices.
*
* author: Hendrik Scholz, Matthias Schmitz
* website: https://www.github.com/mattthias/slurm
*
* As pppstatus is licensed under the GPL, slurm is too. See the following
* paragraphs for information about pppstatus and the license.
*
*****************************************************************************
* $Id: slurm.c,v 1.86 2004/10/12 19:44:36 hscholz Exp $
*****************************************************************************
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*****************************************************************************/
#include "os.h"
#include "config.h"
#include "slurm.h"
#include "src/if_media.h"
#include "src/if_media.c"
#include "error.h"
#include "error.c"
#include "theme.h"
#include "theme.c"
#ifdef __HPUX__
#include "src/hpux.h"
#include "src/hpux.c"
#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
#include "src/freebsd.h"
#include "src/freebsd.c"
#elif defined (__linux__)
#include "src/linux.h"
#include "src/linux.c"
#elif defined (__OpenBSD__) || defined (__MicroBSD__)
#include "src/openbsd.h"
#include "src/openbsd.c"
#elif defined (__NetBSD__)
#include "src/netbsd.h"
#include "src/netbsd.c"
#elif defined (__Solaris__)
#include "src/solaris.h"
#include "src/solaris.c"
#elif defined (__APPLE__)
#include "src/macos.h"
#include "src/macos.c"
#elif defined (__DragonFly__)
#include "src/freebsd.h"
#include "src/freebsd.c"
#else
#warning "Your OS is not supported. Including dummy code!"
#include "src/unsupported.h"
#include "src/unsupported.c"
#endif
/******************************************************************************
*
* center()
*
* center a given string on a given line
* this is pppstatus code :)
*
*****************************************************************************/
void center(short int line, char *strg, ...)
{
short int where;
char *final;
va_list trans;
final = malloc(80);
va_start(trans, strg);
(void) vsnprintf(final, 80, strg, trans);
va_end(trans);
where = (int) (40 - (strlen(final) / 2));
if (line != 0 && line != 24) {
move(line, 20);
hline(32, 50);
}
mvprintw(line, where, "%s", final);
free(final);
}
/******************************************************************************
*
* get_time()
*
* uptime stats struct with current time
*
*****************************************************************************/
void get_time(void)
{
long x;
stats.current_time = time(NULL);
x = stats.current_time - stats.connect_time;
stats.online_sec = x % 60;
stats.online_min = (x / 60) % 60;
stats.online_hour = (x / 3600) % 24;
stats.online_days = (x / (3600 * 24)) % 365;
}
/******************************************************************************
*
* update_info()
*
* update the statistics and pay attention to buffer overruns while we are
* here. As we allow decreasing values we have to pay attention to
* no leave garbage on the screen.
*
*****************************************************************************/
void update_info(int displaymode)
{
char draw[DRAWLEN + 1];
attrset(COLOR_PAIR(PAIR_VAR) |
((unsigned long) (t.var_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
if (displaymode != MODE_LARGE) {
snprintf(draw, DRAWLEN - 1, "%lu",
stats.rx_packets - stats.rx_packets_off);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(20, 24, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%lu",
stats.tx_packets - stats.tx_packets_off);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(20, 65, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%lu",
stats.rx_errors - stats.rx_errors_off);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(22, 24, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%lu",
stats.tx_errors - stats.tx_errors_off);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(22, 65, "%s", draw);
switch (data_type) {
case TYPE_MEGA:
snprintf(draw, DRAWLEN - 1, "%.3f MB", (stats.rx_bytes +
(stats.rx_over *
SNMPMAXBYTES) -
stats.rx_bytes_off) /
1048570);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(21, 24, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%.3f MB", (stats.tx_bytes +
(stats.tx_over *
SNMPMAXBYTES) -
stats.tx_bytes_off) /
1048570);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(21, 65, "%s", draw);
break;
case TYPE_GIGA:
snprintf(draw, DRAWLEN - 1, "%.3f GB", (stats.rx_bytes +
(stats.rx_over *
SNMPMAXBYTES) -
stats.rx_bytes_off)
/ 1073735680);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(21, 24, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%.3f GB", (stats.tx_bytes +
(stats.tx_over *
SNMPMAXBYTES) -
stats.tx_bytes_off)
/ 1073735680);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(21, 65, "%s", draw);
break;
}
}
}
#ifdef WITH_LED
/******************************************************************************
*
* led_on() / led_off()
*
* blinkenlights(tm)
*
*****************************************************************************/
void led_on(unsigned int who)
{
int CHAR = 215;
if (who == LED_RX) {
attrset(COLOR_PAIR(PAIR_RX) |
((unsigned long) (t.rx_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
move(14, 37);
hline(CHAR, 2);
} else if (who == LED_TX) {
attrset(COLOR_PAIR(PAIR_TX) |
((unsigned long) (t.tx_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
move(14, 41);
hline(CHAR, 2);
}
}
void led_off(unsigned int who)
{
if (who == LED_RX) {
attrset(COLOR_PAIR(PAIR_VAR) |
((unsigned long) (t.var_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
mvprintw(14, 37, "RX");
} else if (who == LED_TX) {
attrset(COLOR_PAIR(PAIR_VAR) |
((unsigned long) (t.var_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
mvprintw(14, 41, "TX");
}
}
#endif
/******************************************************************************
*
* update_stat_large()
*
* update the data array holding the needed information and redraw the graph
* this mode shows two large graphs, one for each direction
*
*****************************************************************************/
int update_stat_large(void)
{
float rxspeed;
float txspeed;
int i = 0, x, y;
int rx_scalechanged = 0; /* traffic scale changed? */
int tx_scalechanged = 0;
float tmp_maxspeed = 0; /* needed for max speed calc in graph */
int tmp_maxspeedpos = 1; /* same here */
char draw[DRAWLEN + 1]; /* what we draw on the screen */
/* in case of REINIT we want to keep the rx and tx values as we can
* recalculate the graph for the new mode based on them.
* recalculation is done automatically as ??_maxspeed equals 0 after
* initilization.
*/
if (db_status == DB_STATUS_REINIT || db_status == DB_STATUS_STARTUP) {
rx_maxspeed = 0;
rx_overallmax = 0;
tx_maxspeed = 0;
tx_overallmax = 0;
/* fill the graph array with zeros */
for (x = 0; x < GRAPH_WIDTH; x++) {
for (y = 0; y < GRAPH_HEIGHT; y++) {
rx_graph[x][y] = 0;
tx_graph[x][y] = 0;
}
}
if (db_status == DB_STATUS_STARTUP) {
stats.rx_bytes_comp = stats.rx_bytes;
stats.tx_bytes_comp = stats.tx_bytes;
for (x = 0; x < GRAPH_WIDTH; x++) {
rx_speedarray[x] = 0;
tx_speedarray[x] = 0;
}
db_status = DB_STATUS_RUNNING;
return 1;
}
db_status = DB_STATUS_RUNNING;
}
/*
* current speed in bits/s
*
* in case of the expected u_long overflow in stats.?x_bytes
* we will calculate a negative number as {sum|tx|rx}speed.
* to prevent this we have to check if the _comp value is larger
* than the current value. If true, we set _comp to 0
*/
if (stats.rx_bytes_comp > stats.rx_bytes)
stats.rx_bytes_comp = 0;
if (stats.tx_bytes_comp > stats.tx_bytes)
stats.tx_bytes_comp = 0;
rxspeed = (stats.rx_bytes - stats.rx_bytes_comp) / refreshdelay;
txspeed = (stats.tx_bytes - stats.tx_bytes_comp) / refreshdelay;
/* print current speed */
snprintf(draw, DRAWLEN - 1, "%.2f KB/s", (float) rxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(21, 24, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%.2f KB/s", (float) txspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(21, 65, "%s", draw);
stats.rx_bytes_comp = stats.rx_bytes;
stats.tx_bytes_comp = stats.tx_bytes;
/* set new max speed for graph if reached */
if (rxspeed > rx_maxspeed) {
rx_maxspeed = rxspeed;
rx_maxspeedpos = 0;
rx_scalechanged++;
if (rxspeed > rx_overallmax)
rx_overallmax = rxspeed;
}
/* set new max speed for graph if reached */
if (txspeed > tx_maxspeed) {
tx_maxspeed = txspeed;
tx_maxspeedpos = 0;
tx_scalechanged++;
if (txspeed > tx_overallmax)
tx_overallmax = txspeed;
}
/*
* update the Graph Top Speed field
* as it might be shorter than before just be sure to not leave
* trailing garbage by printing spaces
*/
if (rx_scalechanged) {
snprintf(draw, DRAWLEN - 1, "%.2f KB/s",
(float) rx_maxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(22, 24, "%s", draw);
}
if (tx_scalechanged) {
snprintf(draw, DRAWLEN - 1, "%.2f KB/s",
(float) tx_maxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(22, 65, "%s", draw);
}
/* increment position of max speed as we move the graph */
rx_maxspeedpos++;
tx_maxspeedpos++;
/* check if max speed has to be lowered for the graph as the max speed
* was reached too long ago
*/
tmp_maxspeed = 0;
tmp_maxspeedpos = 1;
if (rx_maxspeedpos >= GRAPH_WIDTH) {
/* max speed calculation has to be redone */
for (i = 0; i < GRAPH_WIDTH; i++) {
if (rx_speedarray[i] > tmp_maxspeed) {
tmp_maxspeed = rx_speedarray[1];
tmp_maxspeedpos = i;
}
}
/* set new values */
rx_maxspeed = tmp_maxspeed;
rx_maxspeedpos = tmp_maxspeedpos;
}
tmp_maxspeed = 0;
tmp_maxspeedpos = 1;
if (tx_maxspeedpos >= GRAPH_WIDTH) {
/* max speed calculation has to be redone */
for (i = 0; i < GRAPH_WIDTH; i++) {
if (tx_speedarray[i] > tmp_maxspeed) {
tmp_maxspeed = tx_speedarray[1];
tmp_maxspeedpos = i;
}
}
/* set new values */
tx_maxspeed = tmp_maxspeed;
tx_maxspeedpos = tmp_maxspeedpos;
}
/* prepare the graph array
*
* shift the graph to the left and then add the last entry
* in addition move the traffic stats left
*/
/* move */
for (x = GRAPH_WIDTH - 1; x >= 0; x--) {
rx_speedarray[x] = rx_speedarray[x - 1];
tx_speedarray[x] = tx_speedarray[x - 1];
for (y = 0; y < GRAPHLARGE_HEIGHT; y++) {
rx_graph[x][y] = rx_graph[x - 1][y];
tx_graph[x][y] = tx_graph[x - 1][y];
}
}
/* add the last column */
if (rx_maxspeed > 0)
i = (int) ((rxspeed / rx_maxspeed) * GRAPHLARGE_HEIGHT);
for (y = 0; y <= GRAPHLARGE_HEIGHT; y++) {
if (i > y)
rx_graph[0][y] = 1;
else
rx_graph[0][y] = 0;
}
if (0 != (int) rxspeed)
rx_graph[0][1] = 1;
rx_speedarray[0] = rxspeed;
if (tx_maxspeed > 0)
i = (int) ((txspeed / tx_maxspeed) * GRAPHLARGE_HEIGHT);
for (y = 0; y <= GRAPHLARGE_HEIGHT; y++) {
if (i > y)
tx_graph[0][y] = 1;
else
tx_graph[0][y] = 0;
}
if (0 != (int) txspeed)
tx_graph[0][1] = 1;
tx_speedarray[0] = txspeed;
/*
* rescale graph
*
* in case the maxspeed for the shown graph changed we need to
* recalculate the whole graph
*
*/
if (rx_scalechanged) {
/* for each line rewrite the graph */
for (x = GRAPH_WIDTH - 1; x >= 0; x--) {
i = (int) ((rx_speedarray[x] / rx_maxspeed) *
GRAPHLARGE_HEIGHT);
for (y = 0; y <= GRAPHLARGE_HEIGHT; y++) {
if (i > y)
rx_graph[x][y] = 1;
else
rx_graph[x][y] = 0;
}
if (rx_speedarray[x] != 0)
rx_graph[x][1] = 1;
}
}
if (tx_scalechanged) {
/* for each line rewrite the graph */
for (x = GRAPH_WIDTH - 1; x >= 0; x--) {
i = (int) ((tx_speedarray[x] / tx_maxspeed) *
GRAPHLARGE_HEIGHT);
for (y = 0; y <= GRAPHLARGE_HEIGHT; y++) {
if (i > y)
tx_graph[x][y] = 1;
else
tx_graph[x][y] = 0;
}
if (tx_speedarray[x] != 0)
tx_graph[x][1] = 1;
}
}
/*
* finally draw the two graphs line by line
*
* the rx graphs grows to the bottom
*/
for (y = GRAPHLARGE_HEIGHT - 1; y > 0; y--) {
for (x = 0; x <= GRAPH_WIDTH; x++) {
/* RX graph */
if (rx_graph[x][y] == 1) {
attrset(COLOR_PAIR(PAIR_RX) |
((unsigned long) (t.rx_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
mvprintw(11 - y, x + 1, SYMBOL_TRAFFIC);
} else
mvprintw(11 - y, x + 1, SYMBOL_NOTRAFFIC);
/* TX graph */
if (tx_graph[x][y] == 1) {
attrset(COLOR_PAIR(PAIR_TX) |
((unsigned long) (t.tx_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
mvprintw(10 + y, x + 1, SYMBOL_TRAFFIC);
} else
mvprintw(10 + y, x + 1, SYMBOL_NOTRAFFIC);
}
}
return 0;
}
/******************************************************************************
*
* update_stat_split()
*
* updates the array holding information about the graph and redraw
* the graph.
*
*****************************************************************************/
int update_stat_split(void)
{
float rxspeed;
float txspeed;
int i = 0, x, y;
int rx_scalechanged = 0; /* traffic scale changed? */
int tx_scalechanged = 0;
float tmp_maxspeed = 0; /* needed for max speed calc in graph */
int tmp_maxspeedpos = 1; /* same here */
char draw[DRAWLEN + 1]; /* what we draw on the screen */
/* in case of REINIT we want to keep the rx and tx values as we can
* recalculate the graph for the new mode based on them.
* recalculation is done automatically as ??_maxspeed equals 0 after
* initilization.
*/
if (db_status != DB_STATUS_RUNNING) {
rx_maxspeed = 0;
rx_overallmax = 0;
tx_maxspeed = 0;
tx_overallmax = 0;
/* fill the graph array with zeros */
for (x = 0; x < GRAPH_WIDTH; x++) {
for (y = 0; y < GRAPH_HEIGHT; y++) {
rx_graph[x][y] = 0;
tx_graph[x][y] = 0;
}
}
if (db_status == DB_STATUS_STARTUP) {
stats.rx_bytes_comp = stats.rx_bytes;
stats.tx_bytes_comp = stats.tx_bytes;
for (x = 0; x < GRAPH_WIDTH; x++) {
rx_speedarray[x] = 0;
tx_speedarray[x] = 0;
}
db_status = DB_STATUS_RUNNING;
return 1;
}
db_status = DB_STATUS_RUNNING;
}
/*
* current speed in bits/s
*
* in case of the expected u_long overflow in stats.?x_bytes
* we will calculate a negative number as {sum|tx|rx}speed.
* to prevent this we have to check if the _comp value is larger
* than the current value. If true, we set _comp to to 2^32 - _comp
*/
if (stats.rx_bytes_comp > stats.rx_bytes)
stats.rx_bytes_comp = SNMPMAXBYTES - stats.rx_bytes_comp;
if (stats.tx_bytes_comp > stats.tx_bytes)
stats.tx_bytes_comp = SNMPMAXBYTES - stats.tx_bytes_comp;
rxspeed = (stats.rx_bytes - stats.rx_bytes_comp) / refreshdelay;
txspeed = (stats.tx_bytes - stats.tx_bytes_comp) / refreshdelay;
/* print current speed
* instead of directly printing the string we first clear the draw string
* and then fill in the speed. This way we prevent garbage from being
* left on the screen.
*/
attrset(COLOR_PAIR(PAIR_VAR) |
((unsigned long) (t.var_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
snprintf(draw, DRAWLEN - 1, "%.2f KB/s ", rxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(17, 24, "%s", draw);
snprintf(draw, DRAWLEN - 1, "%.2f KB/s ", txspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(17, 65, "%s", draw);
stats.rx_bytes_comp = stats.rx_bytes;
stats.tx_bytes_comp = stats.tx_bytes;
/* set new max speed for graph if reached */
if (rxspeed > rx_maxspeed) {
rx_maxspeed = rxspeed;
rx_maxspeedpos = 0;
rx_scalechanged++;
if (rxspeed > rx_overallmax) {
rx_overallmax = rxspeed;
snprintf(draw, DRAWLEN - 1, "%.2f KB/s",
(float) rxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(19, 24, "%s", draw);
}
}
/* set new max speed for graph if reached */
if (txspeed > tx_maxspeed) {
tx_maxspeed = txspeed;
tx_maxspeedpos = 0;
tx_scalechanged++;
if (txspeed > tx_overallmax) {
tx_overallmax = txspeed;
snprintf(draw, DRAWLEN - 1, "%.2f KB/s",
(float) txspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(19, 65, "%s", draw);
}
}
/*
* update the Graph Top Speed field
* as it might be shorter than before just be sure to not leave
* trailing garbage by printing spaces
*/
if (rx_scalechanged) {
snprintf(draw, DRAWLEN - 1, "%.2f KB/s", rx_maxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(18, 24, "%s", draw);
}
if (tx_scalechanged) {
snprintf(draw, DRAWLEN - 1, "%.2f KB/s", tx_maxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(18, 65, "%s", draw);
}
/* increment position of max speed as we move the graph */
rx_maxspeedpos++;
tx_maxspeedpos++;
/* check if max speed has to be lowered for the graph as the max speed
* was reached too long ago
*/
tmp_maxspeed = 0;
tmp_maxspeedpos = 1;
if (rx_maxspeedpos >= GRAPHSPLIT_WIDTH) {
/* max speed calculation has to be redone */
for (i = 0; i < GRAPHSPLIT_WIDTH; i++) {
if (rx_speedarray[i] > tmp_maxspeed) {
tmp_maxspeed = rx_speedarray[1];
tmp_maxspeedpos = i;
}
}
/* set new values */
rx_maxspeed = tmp_maxspeed;
rx_maxspeedpos = tmp_maxspeedpos;
}
tmp_maxspeed = 0;
tmp_maxspeedpos = 1;
if (tx_maxspeedpos >= GRAPHSPLIT_WIDTH) {
/* max speed calculation has to be redone */
for (i = 0; i < GRAPHSPLIT_WIDTH; i++) {
if (tx_speedarray[i] > tmp_maxspeed) {
tmp_maxspeed = tx_speedarray[1];
tmp_maxspeedpos = i;
}
}
/* set new values */
tx_maxspeed = tmp_maxspeed;
tx_maxspeedpos = tmp_maxspeedpos;
}
/* prepare the graph array
*
* shift the graph to the left and then add the last entry
* in addition move the traffic stats left
*/
/* move */
for (x = GRAPHSPLIT_WIDTH - 1; x >= 0; x--) {
rx_speedarray[x] = rx_speedarray[x - 1];
tx_speedarray[x] = tx_speedarray[x - 1];
for (y = 0; y < GRAPHSPLIT_HEIGHT; y++) {
rx_graph[x][y] = rx_graph[x - 1][y];
tx_graph[x][y] = tx_graph[x - 1][y];
}
}
/* add the last column */
if (rx_maxspeed > 0)
i = (int) ((rxspeed / rx_maxspeed) * GRAPHSPLIT_HEIGHT);
for (y = 0; y <= GRAPHSPLIT_HEIGHT; y++) {
if (i > y)
rx_graph[0][y] = 1;
else
rx_graph[0][y] = 0;
}
if (0 != (int) rxspeed)
rx_graph[0][1] = 1;
rx_speedarray[0] = rxspeed;
if (tx_maxspeed > 0)
i = (int) ((txspeed / tx_maxspeed) * GRAPHSPLIT_HEIGHT);
for (y = 0; y <= GRAPHSPLIT_HEIGHT; y++) {
if (i > y)
tx_graph[0][y] = 1;
else
tx_graph[0][y] = 0;
}
if (0 != (int) txspeed)
tx_graph[0][1] = 1;
tx_speedarray[0] = txspeed;
/*
* rescale graph
*
* in case the maxspeed for the shown graph changed we need to
* recalculate the whole graph
*
*/
if (rx_scalechanged) {
/* for each line rewrite the graph */
for (x = GRAPHSPLIT_WIDTH - 1; x >= 0; x--) {
i = (int) ((rx_speedarray[x] / rx_maxspeed) *
GRAPHSPLIT_HEIGHT);
for (y = 0; y <= GRAPHSPLIT_HEIGHT; y++) {
if (i > y)
rx_graph[x][y] = 1;
else
rx_graph[x][y] = 0;
}
if (rx_speedarray[x] != 0)
rx_graph[x][1] = 1;
}
}
if (tx_scalechanged) {
/* for each line rewrite the graph */
for (x = GRAPHSPLIT_WIDTH - 1; x >= 0; x--) {
i = (int) ((tx_speedarray[x] / tx_maxspeed) *
GRAPHSPLIT_HEIGHT);
for (y = 0; y <= GRAPHSPLIT_HEIGHT; y++) {
if (i > y)
tx_graph[x][y] = 1;
else
tx_graph[x][y] = 0;
}
if (tx_speedarray[x] != 0)
tx_graph[x][1] = 1;
}
}
/*
* finally draw the two graphs line by line
*
* the rx graphs grows to the bottom
*/
for (y = GRAPHSPLIT_HEIGHT - 1; y > 0; y--) {
for (x = 0; x <= GRAPHSPLIT_WIDTH; x++) {
/* RX graph */
if (rx_graph[x][y] == 1) {
attrset(COLOR_PAIR(PAIR_RX) |
((unsigned long) (t.rx_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
mvprintw(7 - y, x + 1, SYMBOL_TRAFFIC);
} else
mvprintw(7 - y, x + 1, SYMBOL_NOTRAFFIC);
/* TX graph */
if (tx_graph[x][y] == 1) {
attrset(COLOR_PAIR(PAIR_TX) |
((unsigned long) (t.tx_attrib ==
COL_BOLD) ? A_BOLD : A_NORMAL));
mvprintw(6 + y, x + 1, SYMBOL_TRAFFIC);
} else
mvprintw(6 + y, x + 1, SYMBOL_NOTRAFFIC);
}
}
return 0;
}
/******************************************************************************
*
* update_stat_combined()
*
* this is the classic view for the graph known from 0.0.3
*
*****************************************************************************/
int update_stat_combined(void)
{
float sumspeed;
float rxspeed;
float txspeed;
int i = 0, x, y;
int rx_scalechanged = 0; /* traffic scale changed? */
float tmp_maxspeed = 0; /* needed for max speed calc in graph */
int tmp_maxspeedpos = 1; /* same here */
char draw[DRAWLEN + 1]; /* what we draw on the screen */
/* in case of REINIT we want to keep the rx and tx values as we can
* recalculate the graph for the new mode based on them.
*/
if (db_status == DB_STATUS_REINIT || db_status == DB_STATUS_STARTUP) {
tx_maxspeed = 0;
tx_overallmax = 0;
rx_maxspeed = 0;
rx_overallmax = 0;
comb_maxspeed = 0;
comb_overallmax = 0;
/* fill the graph array with zeros */
for (x = 0; x < GRAPH_WIDTH; x++) {
for (y = 0; y < GRAPH_HEIGHT; y++) {
rx_graph[x][y] = 0;
tx_graph[x][y] = 0;
}
}
/* force graph recalculation */
rx_scalechanged++;
if (db_status == DB_STATUS_STARTUP) {
stats.rx_bytes_comp = stats.rx_bytes;
stats.tx_bytes_comp = stats.tx_bytes;
for (x = 0; x < GRAPH_WIDTH; x++) {
rx_speedarray[x] = 0;
tx_speedarray[x] = 0;
}
db_status = DB_STATUS_RUNNING;
return 1;
}
db_status = DB_STATUS_RUNNING;
}
/*
* current speed in bits/s
*
* in case of the expected u_long overflow in stats.?x_bytes
* we will calculate a negative number as {sum|tx|rx}speed.
* to prevent this we have to check if the _comp value is larger
* than the current value. If true, we set _comp to 0
*/
if (stats.rx_bytes_comp > stats.rx_bytes)
stats.rx_bytes_comp = 0;
if (stats.tx_bytes_comp > stats.tx_bytes)
stats.tx_bytes_comp = 0;
sumspeed = ((stats.rx_bytes - stats.rx_bytes_comp) +
(stats.tx_bytes - stats.tx_bytes_comp)) / refreshdelay;
rxspeed = (stats.rx_bytes - stats.rx_bytes_comp) / refreshdelay;
txspeed = (stats.tx_bytes - stats.tx_bytes_comp) / refreshdelay;
/* print current speed */
snprintf(draw, DRAWLEN - 1, "%.2f KB/s", sumspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(18, 24, "%s", draw);
stats.rx_bytes_comp = stats.rx_bytes;
stats.tx_bytes_comp = stats.tx_bytes;
/* set new max speed for graph if reached */
if (sumspeed > comb_maxspeed) {
comb_maxspeed = sumspeed;
rx_maxspeedpos = 0;
rx_scalechanged++;
if (sumspeed > comb_overallmax) {
comb_overallmax = sumspeed;
snprintf(draw, DRAWLEN - 1, "%.2f KB/s",
(float) sumspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(19, 65, "%s", draw);
}
}
/*
* update the Graph Top Speed field
* as it might be shorter than before just be sure to not leave
* trailing garbage by printing spaces
*/
if (rx_scalechanged) {
snprintf(draw, DRAWLEN - 1, "%.2f KB/s", comb_maxspeed / 1024);
strncat(draw, " ", DRAWLEN - strlen(draw));
mvprintw(19, 24, "%s", draw);
}
/* increment position of max speed as we move the graph */
rx_maxspeedpos++;
/* check if max speed has to be lowered for the graph as the max speed
* was reached too long ago
*/
tmp_maxspeed = 0;
tmp_maxspeedpos = 1;
if (rx_maxspeedpos >= GRAPHCOMBINED_WIDTH) {
/* max speed calculation has to be redone */
for (i = 0; i < GRAPHCOMBINED_WIDTH; i++) {
if (rx_speedarray[i] > tmp_maxspeed) {
tmp_maxspeed = rx_speedarray[1];
tmp_maxspeedpos = i;
}
}
/* set new values */
comb_maxspeed = tmp_maxspeed;
rx_maxspeedpos = tmp_maxspeedpos;
}
/* prepare the graph array
*
* shift the graph to the left and then add the last entry
* in addition move the traffic stats left
*
* there seems to be some redundancy in here regarding the rx/tx values
* but we need it for seamless mode switching
*
*/
/* move */
for (x = GRAPHCOMBINED_WIDTH - 1; x >= 0; x--) {
rx_speedarray[x] = rx_speedarray[x - 1];
tx_speedarray[x] = tx_speedarray[x - 1];
for (y = 0; y < GRAPHCOMBINED_HEIGHT; y++) {
rx_graph[x][y] = rx_graph[x - 1][y];
tx_graph[x][y] = tx_graph[x - 1][y];
}
}
/* add the last column */
if (comb_maxspeed > 0)
i = (int) ((sumspeed / comb_maxspeed) * GRAPHCOMBINED_HEIGHT);
for (y = 0; y <= GRAPHCOMBINED_HEIGHT; y++) {
if (i > y)
rx_graph[0][y] = 1;
else
rx_graph[0][y] = 0;
}
if (0 != (int) sumspeed)
rx_graph[0][1] = 1;
rx_speedarray[0] = rxspeed;
tx_speedarray[0] = txspeed;
/*
* rescale graph
*
* in case the maxspeed for the shown graph changed we need to
* recalculate the whole graph
*
*/
if (rx_scalechanged) {
/* for each line rewrite the graph */
for (x = GRAPHCOMBINED_WIDTH - 1; x >= 0; x--) {
i = (int) ((rx_speedarray[x] / comb_maxspeed) *
GRAPHSPLIT_HEIGHT);
for (y = 0; y <= GRAPHCOMBINED_HEIGHT; y++) {
if (i > y)
rx_graph[x][y] = 1;
else
rx_graph[x][y] = 0;
}
if (rx_speedarray[x] != 0)
rx_graph[x][1] = 1;
}
}
/*
* finally draw the two graphs line by line
*
* the rx graphs grows to the bottom
*/
for (y = GRAPHCOMBINED_HEIGHT - 1; y > 0; y--) {
for (x = 0; x <= GRAPHCOMBINED_WIDTH; x++) {