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completely new system: only values in config file get updated + cleaner code

This commit is contained in:
Aaron Marcher 2016-03-14 20:17:14 +01:00 committed by Aaron Marcher (drkhsh)
parent a97e843918
commit b176d0a2d0
2 changed files with 88 additions and 119 deletions

View file

@ -1,37 +1,33 @@
/* See LICENSE file for copyright and license details. */
/* alsa sound */
static const char soundcard[] = "default";
static const char channel[] = "Master";
/* cpu temperature */
static const char tempfile[] = "/sys/devices/platform/coretemp.0/hwmon/hwmon2/temp1_input";
/* wifi */
static const char wificard[] = "wlp3s0";
/* battery */
static const char batterynowfile[] = "/sys/class/power_supply/BAT0/energy_now";
static const char batteryfullfile[] = "/sys/class/power_supply/BAT0/energy_full_design";
/* time */
static const char timeformat[] = "%y-%m-%d %H:%M:%S";
static const char batterypath[] = "/sys/class/power_supply/";
static const char batterynow[] = "energy_now";
static const char batteryfull[] = "energy_full_design";
/* bar update interval in seconds (smallest value = 1) */
static unsigned int update_interval = 1;
/* mountpoint for diskusage */
static const char mountpath[] = "/home";
/* statusbar
Possible arguments:
- battery (battery percentage)
- cpu_temperature (cpu temperature in degrees)
- get_battery (battery percentage) [argument: battery name]
- cpu_temperature (cpu temperature in degrees) [argument: temperature file]
- cpu usage (cpu usage in percent)
- datetime (date and time)
- diskusage (disk usage in percent)
- datetime (date and time) [argument: format]
- diskusage (disk usage in percent) [argument: mountpoint]
- ram_usage (ram usage in percent)
- volume (alsa volume and mute status in percent)
- wifi_signal (wifi signal in percent) */
#define FORMATSTRING "wifi %4s | bat %4s | cpu %4s %3s | ram %3s | vol %4s | disk %4s | %3s"
#define ARGUMENTS wifi_signal, battery, cpu_usage, cpu_temperature, ram_usage, volume, diskusage, datetime
- volume (alsa volume and mute status in percent) [argument: soundcard]
- wifi_signal (wifi signal in percent) [argument: wifi card interface name] */
static const struct arg args[] = {
/* function format argument */
{ get_wifi_signal, "wifi %4s | ", "wlp3s0" },
{ get_battery, "bat %4s | ", "BAT0" },
{ get_cpu_usage, "cpu %4s ", NULL },
{ get_cpu_temperature, "%3s | ", "/sys/devices/platform/coretemp.0/hwmon/hwmon2/temp1_input" },
{ get_ram_usage, "ram %3s | ", NULL },
{ get_volume, "vol %4s | ", "default" },
{ get_diskusage, "ssd %3s | ", "/" },
{ get_datetime, "%s", "%y-%m-%d %H:%M:%S" }
};

View file

@ -15,64 +15,48 @@
#include <unistd.h>
#include <X11/Xlib.h>
/* local libraries */
#include "config.h"
/* check file macro */
#define CHECK_FILE(X,Y) do { \
if (stat(X,&Y) < 0) return -1; \
if (!S_ISREG(Y.st_mode)) return -1; \
} while (0);
/* functions */
int config_check();
void setstatus(char *str);
char *smprintf(char *fmt, ...);
char *get_battery();
char *get_cpu_temperature();
char *get_cpu_usage();
char *get_datetime();
char *get_diskusage();
char *get_ram_usage();
char *get_volume();
char *get_wifi_signal();
/* global variables */
static Display *dpy;
/* check configured paths */
int
config_check()
{
struct stat fs;
/* statusbar configuration type and struct */
typedef char *(*op_fun) (const char *);
struct arg {
op_fun func;
const char *format;
const char *args;
};
/* check all files in the config.h file */
CHECK_FILE(batterynowfile, fs);
CHECK_FILE(batteryfullfile, fs);
CHECK_FILE(tempfile, fs);
/* functions */
void setstatus(const char *);
char *smprintf(const char *, ...);
char *get_battery(const char *);
char *get_cpu_temperature(const char *);
char *get_cpu_usage(const char *);
char *get_datetime(const char *);
char *get_diskusage(const char *);
char *get_ram_usage(const char *);
char *get_volume(const char *);
char *get_wifi_signal(const char *);
/* check update interval */
if (update_interval < 1)
return -1;
/* include config header */
#include "config.h"
/* exit successfully */
return 0;
}
/* set statusbar (WM_NAME) */
/* set statusbar */
void
setstatus(char *str)
setstatus(const char *str)
{
/* set WM_NAME via X11 */
XStoreName(dpy, DefaultRootWindow(dpy), str);
XSync(dpy, False);
}
/* smprintf function */
char *
smprintf(char *fmt, ...)
smprintf(const char *fmt, ...)
{
va_list fmtargs;
char *ret = NULL;
va_start(fmtargs, fmt);
if (vasprintf(&ret, fmt, fmtargs) < 0)
return NULL;
@ -83,14 +67,28 @@ smprintf(char *fmt, ...)
/* battery percentage */
char *
get_battery()
get_battery(const char *battery)
{
int now, full, perc;
char batterynowfile[64] = "";
char batteryfullfile[64] = "";
FILE *fp;
/* generate battery nowfile path */
strcat(batterynowfile, batterypath);
strcat(batterynowfile, battery);
strcat(batterynowfile, "/");
strcat(batterynowfile, batterynow);
/* generate battery fullfile path */
strcat(batteryfullfile, batterypath);
strcat(batteryfullfile, battery);
strcat(batteryfullfile, "/");
strcat(batteryfullfile, batteryfull);
/* open battery now file */
if (!(fp = fopen(batterynowfile, "r"))) {
fprintf(stderr, "Error opening battery file.");
fprintf(stderr, "Error opening battery file.%s",batterynowfile);
return smprintf("n/a");
}
@ -121,13 +119,13 @@ get_battery()
/* cpu temperature */
char *
get_cpu_temperature()
get_cpu_temperature(const char *file)
{
int temperature;
FILE *fp;
/* open temperature file */
if (!(fp = fopen(tempfile, "r"))) {
if (!(fp = fopen(file, "r"))) {
fprintf(stderr, "Could not open temperature file.\n");
return smprintf("n/a");
}
@ -144,7 +142,7 @@ get_cpu_temperature()
/* cpu percentage */
char *
get_cpu_usage()
get_cpu_usage(const char *null)
{
int perc;
long double a[4], b[4];
@ -186,7 +184,7 @@ get_cpu_usage()
/* date and time */
char *
get_datetime()
get_datetime(const char *timeformat)
{
time_t tm;
size_t bufsize = 64;
@ -208,13 +206,13 @@ get_datetime()
/* disk usage percentage */
char *
get_diskusage()
get_diskusage(const char *mountpoint)
{
int perc = 0;
struct statvfs fs;
/* try to open mountpoint */
if (statvfs(mountpath, &fs) < 0) {
if (statvfs(mountpoint, &fs) < 0) {
fprintf(stderr, "Could not get filesystem info.\n");
return smprintf("n/a");
}
@ -228,7 +226,7 @@ get_diskusage()
/* ram percentage */
char *
get_ram_usage()
get_ram_usage(const char *null)
{
int perc;
long total, free, buffers, cached;
@ -258,7 +256,7 @@ get_ram_usage()
/* alsa volume percentage */
char *
get_volume()
get_volume(const char *soundcard)
{
int mute = 0;
long vol = 0, max = 0, min = 0;
@ -296,24 +294,22 @@ get_volume()
/* wifi percentage */
char *
get_wifi_signal()
get_wifi_signal(const char *wificard)
{
int bufsize = 255;
int strength;
char buf[bufsize];
char *datastart;
char path_start[16] = "/sys/class/net/";
char path_end[11] = "/operstate";
char path[32];
char path[64];
char status[5];
char needle[sizeof wificard + 1];
FILE *fp;
/* generate the path name */
memset(path, 0, sizeof path);
strcat(path, path_start);
strcat(path, "/sys/class/net/");
strcat(path, wificard);
strcat(path, path_end);
strcat(path, "/operstate");
/* open wifi file */
if(!(fp = fopen(path, "r"))) {
@ -360,53 +356,30 @@ get_wifi_signal()
int
main()
{
char status[1024];
char *battery = NULL;
char *cpu_temperature = NULL;
char *cpu_usage = NULL;
char *datetime = NULL;
char *diskusage = NULL;
char *ram_usage = NULL;
char *volume = NULL;
char *wifi_signal = NULL;
char status_string[1024];
struct arg argument;
/* check config for sanity */
if (config_check() < 0) {
fprintf(stderr, "Config error, please check paths and interval and recompile!\n");
exit(1);
}
/* open display */
/* try to open display */
if (!(dpy = XOpenDisplay(0x0))) {
fprintf(stderr, "Cannot open display!\n");
exit(1);
}
/* return status every second */
/* return status every interval */
for (;;) {
/* assign the values */
battery = get_battery();
cpu_temperature = get_cpu_temperature();
cpu_usage = get_cpu_usage();
datetime = get_datetime();
diskusage = get_diskusage();
ram_usage = get_ram_usage();
volume = get_volume();
wifi_signal = get_wifi_signal();
/* clear the string */
strcpy(status_string, "");
/* return the status */
sprintf(status, FORMATSTRING, ARGUMENTS);
setstatus(status);
/* generate status_string */
for (size_t i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
argument = args[i];
char *res = argument.func(argument.args);
char *element = smprintf(argument.format, res);
strcat(status_string, element);
}
/* free the values */
free(battery);
free(cpu_temperature);
free(cpu_usage);
free(datetime);
free(diskusage);
free(ram_usage);
free(volume);
free(wifi_signal);
/* return the statusbar */
setstatus(status_string);
/* wait, "update_interval - 1" because of get_cpu_usage() which uses 1 second */
sleep(update_interval -1);