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/* https://gist.github.com/stefansundin/5792671
This is an Ubuntu appindicator that displays the system load
(CPU, memory usage, network traffic down and up).
You need to first install some packages:
sudo apt-get install libgtop2-dev libappindicator-dev libgtk2.0-dev curl
Compile:
wget https://gist.githubusercontent.com/stefansundin/5792671/raw/indicator-sysload.c
gcc -o indicator-sysload indicator-sysload.c -Wall `pkg-config --cflags --libs gtk+-2.0 appindicator-0.1 libgtop-2.0`
Compile and install in /opt/indicator-sysload:
curl -sL https://gist.githubusercontent.com/stefansundin/5792671/raw/indicator-sysload.c | sudo gcc -o /opt/indicator-sysload -xc - -Wall `pkg-config --cflags --libs gtk+-2.0 appindicator-0.1 libgtop-2.0` && sudo chmod +x /opt/indicator-sysload
WARNING:
The periodic update makes Compiz leak memory.
12-24 hours of running will cause performance
issues, and you have to restart Gnome.
License: this software is in the public domain.
*/
#include <gtk/gtk.h>
#include <libappindicator/app-indicator.h>
#include <glibtop.h>
#include <glibtop/cpu.h>
#include <glibtop/mem.h>
#include <glibtop/netload.h>
#include <glibtop/netlist.h>
/* update period in seconds */
int period = 1;
AppIndicator *indicator;
GtkWidget *indicator_menu;
GtkWidget *cpu_item;
GtkWidget *memory_item;
GtkWidget *net_down_item;
GtkWidget *net_up_item;
GtkWidget *sysmon_item;
GtkWidget *quit_item;
int get_cpu()
{
static int cpu_total_old = 0;
static int cpu_idle_old = 0;
glibtop_cpu cpu;
glibtop_get_cpu (&cpu);
int diff_total = cpu.total - cpu_total_old;
int diff_idle = cpu.idle - cpu_idle_old;
cpu_total_old = cpu.total;
cpu_idle_old = cpu.idle;
return 100 * (diff_total-diff_idle) / diff_total;
}
int get_memory(void)
{
glibtop_mem mem;
glibtop_get_mem (&mem);
/* used memory in percents */
return 100 - 100 * (mem.free + mem.buffer + mem.cached) / mem.total;
}
gchar* format_net_label(gchar *prefix, int data)
{
gchar *string;
if(data < 1000)
{
string = g_strdup_printf("%s%d B/s", prefix, data);
}
else if(data < 1000000)
{
string = g_strdup_printf("%s%.1f KiB/s", prefix, data/1000.0);
}
else
{
string = g_strdup_printf("%s%.2f MiB/s", prefix, data/1000000.0);
}
return string;
}
void get_net(int traffic[2])
{
static int bytes_in_old = 0;
static int bytes_out_old = 0;
static gboolean first_run = TRUE;
glibtop_netload netload;
glibtop_netlist netlist;
int bytes_in = 0;
int bytes_out = 0;
int i = 0;
gchar **interfaces = glibtop_get_netlist(&netlist);
for(i = 0; i < netlist.number; i++)
{
glibtop_get_netload(&netload, interfaces[i]);
bytes_in += netload.bytes_in;
bytes_out += netload.bytes_out;
}
g_strfreev(interfaces);
if(first_run)
{
bytes_in_old = bytes_in;
bytes_out_old = bytes_out;
first_run = FALSE;
}
traffic[0] = (bytes_in - bytes_in_old) / period;
traffic[1] = (bytes_out - bytes_out_old) / period;
bytes_in_old = bytes_in;
bytes_out_old = bytes_out;
}
gboolean update()
{
int cpu = get_cpu();
int memory = get_memory();
int net_traffic[2] = {0, 0};
get_net(net_traffic);
int net_down = net_traffic[0];
int net_up = net_traffic[1];
static const gchar *levels[] = {"", "", "", "", "", "", "", ""};
int level_num = sizeof(levels) / sizeof(levels[0]);
int cpu_max = 100;
int mem_max = 100;
static int net_down_max = 0;
static int net_up_max = 0;
int weight = 4;
net_down_max = MAX(net_down, (weight*net_down_max + net_down) / (weight+1));
net_up_max = MAX(net_up, (weight*net_up_max + net_up) / (weight+1));
gchar *cpu_level = (gchar *) levels[level_num * cpu / (cpu_max+1)];
gchar *memory_level = (gchar *) levels[level_num * memory / (mem_max+1)];
gchar *net_down_level = (gchar *) levels[level_num * net_down / (net_down_max+1)];
gchar *net_up_level = (gchar *) levels[level_num * net_up / (net_up_max+1)];
gchar *indicator_label = g_strconcat( cpu_level
, memory_level
, net_down_level
, net_up_level
, NULL);
static const gchar *label_guide = "|▁▁▁▁|";
app_indicator_set_label(indicator, indicator_label, label_guide);
g_free(indicator_label);
gchar *cpu_label = g_strdup_printf("CPU: %d%%", cpu);
gtk_menu_item_set_label(GTK_MENU_ITEM(cpu_item), cpu_label);
g_free(cpu_label);
gchar *memory_label = g_strdup_printf("Memory: %d%%", memory);
gtk_menu_item_set_label(GTK_MENU_ITEM(memory_item), memory_label);
g_free(memory_label);
gchar *net_down_label = format_net_label("Net ↓: ", net_down);
gtk_menu_item_set_label(GTK_MENU_ITEM(net_down_item), net_down_label);
g_free(net_down_label);
gchar *net_up_label = format_net_label("Net ↑: ", net_up);
gtk_menu_item_set_label(GTK_MENU_ITEM(net_up_item), net_up_label);
g_free(net_up_label);
return TRUE;
}
static void start_sysmon(GtkWidget *widget, gpointer data)
{
GError *err = NULL;
gchar *argv[] = {"gnome-system-monitor"};
if( ! g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &err))
{
fprintf(stderr, "Error: %s\n", err->message);
}
}
int main (int argc, char **argv)
{
gtk_init (&argc, &argv);
indicator_menu = gtk_menu_new();
sysmon_item = gtk_menu_item_new_with_label("Gnome System Monitor");
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), sysmon_item);
g_signal_connect(sysmon_item, "activate", G_CALLBACK (start_sysmon), NULL);
GtkWidget *sep = gtk_separator_menu_item_new();
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), sep);
cpu_item = gtk_image_menu_item_new_with_label("");
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), cpu_item);
memory_item = gtk_image_menu_item_new_with_label("");
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), memory_item);
net_down_item = gtk_image_menu_item_new_with_label("");
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), net_down_item);
net_up_item = gtk_image_menu_item_new_with_label("");
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), net_up_item);
/* I don't think it's necessary, uncomment if you want it*/
/*
quit_item = gtk_menu_item_new_with_label("Quit");
gtk_menu_shell_append(GTK_MENU_SHELL(indicator_menu), quit_item);
g_signal_connect(quit_item, "activate", G_CALLBACK (gtk_main_quit), NULL);
*/
gtk_widget_show_all(indicator_menu);
indicator = app_indicator_new ("sysload", "gnome-system-monitor", APP_INDICATOR_CATEGORY_SYSTEM_SERVICES);
app_indicator_set_status(indicator, APP_INDICATOR_STATUS_ACTIVE);
app_indicator_set_label(indicator, "sysload", "sysload");
app_indicator_set_menu(indicator, GTK_MENU (indicator_menu));
update();
/* update period in milliseconds */
g_timeout_add(1000*period, (GtkFunction) update, NULL);
gtk_main ();
return 0;
}
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cig0 Apr 4, 2014

Hi, came hero following original development.
Sorry for the n00b question but: how do I compile it?

cig0 commented Apr 4, 2014

Hi, came hero following original development.
Sorry for the n00b question but: how do I compile it?

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stefansundin Apr 22, 2014

See the comment in the source file:

sudo apt-get install libgtop2-dev libappindicator-dev libgtk2.0-dev
gcc -o indicator-sysload indicator-sysload.c -Wall `pkg-config --cflags --libs gtk+-2.0 appindicator-0.1 libgtop-2.0`

I have not tested on Ubuntu 14.04.

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stefansundin commented Apr 22, 2014

See the comment in the source file:

sudo apt-get install libgtop2-dev libappindicator-dev libgtk2.0-dev
gcc -o indicator-sysload indicator-sysload.c -Wall `pkg-config --cflags --libs gtk+-2.0 appindicator-0.1 libgtop-2.0`

I have not tested on Ubuntu 14.04.

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stefansundin Apr 22, 2014

Ok, I've tested 14.04 now. It appears there is no way to have an empty icon anymore, so I added the gnome-system-monitor icon. Added a one-liner that downloads, compiles and installs the binary.

Owner

stefansundin commented Apr 22, 2014

Ok, I've tested 14.04 now. It appears there is no way to have an empty icon anymore, so I added the gnome-system-monitor icon. Added a one-liner that downloads, compiles and installs the binary.

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