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

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