commented and reordered
This commit is contained in:
Aaron Marcher
Aaron Marcher (drkhsh)
parent
6b2b839cfd
commit
cc85bcc4a4
335
slstatus.c
335
slstatus.c
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@ -1,5 +1,6 @@
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/* See LICENSE file for copyright and license details. */
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/* global libraries */
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#include <alsa/asoundlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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@ -9,22 +10,182 @@
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#include <unistd.h>
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#include <X11/Xlib.h>
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/* local libraries */
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#include "config.h"
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char *smprintf(char *fmt, ...);
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/* functions */
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void setstatus(char *str);
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char *wifi_signal();
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char *battery();
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char *cpu_usage();
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char *cpu_temperature();
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char *ram_usage();
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char *volume();
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char *cpu_usage();
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char *datetime();
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char *ram_usage();
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char *smprintf(char *fmt, ...);
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char *volume();
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char *wifi_signal();
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/* global variables */
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static Display *dpy;
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/* set statusbar (WM_NAME) */
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void
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setstatus(char *str)
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{
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XStoreName(dpy, DefaultRootWindow(dpy), str);
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XSync(dpy, False);
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}
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/* battery percentage */
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char *
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battery()
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{
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int batt_now, batt_full, batt_perc;
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FILE *fp;
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/* open battery now file */
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if (!(fp = fopen(batterynowfile, "r"))) {
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fprintf(stderr, "Error opening battery file.");
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exit(1);
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}
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/* read value */
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fscanf(fp, "%i", &batt_now);
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/* close battery now file */
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fclose(fp);
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/* open battery full file */
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if (!(fp = fopen(batteryfullfile, "r"))) {
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fprintf(stderr, "Error opening battery file.");
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exit(1);
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}
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/* read value */
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fscanf(fp, "%i", &batt_full);
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/* close battery full file */
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fclose(fp);
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/* calculate percent */
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batt_perc = batt_now / (batt_full / 100);
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/* return batt_perc as string */
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return smprintf("%d%%", batt_perc);
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}
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/* cpu temperature */
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char *
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cpu_temperature()
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{
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int temperature;
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FILE *fp;
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/* open temperature file */
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if (!(fp = fopen(tempfile, "r"))) {
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fprintf(stderr, "Could not open temperature file.\n");
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exit(1);
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}
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/* extract temperature */
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fscanf(fp, "%d", &temperature);
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/* close temperature file */
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fclose(fp);
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/* return temperature in degrees */
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return smprintf("%d°C", temperature / 1000);
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}
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/* cpu percentage */
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char *
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cpu_usage()
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{
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int cpu_perc;
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long double a[4], b[4];
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FILE *fp;
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/* open stat file */
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if (!(fp = fopen("/proc/stat","r"))) {
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fprintf(stderr, "Error opening stat file.");
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exit(1);
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}
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/* read values */
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
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/* close stat file */
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fclose(fp);
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/* wait a second (for avg values) */
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sleep(1);
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/* open stat file */
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if (!(fp = fopen("/proc/stat","r"))) {
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fprintf(stderr, "Error opening stat file.");
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exit(1);
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}
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/* read values */
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
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/* close stat file */
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fclose(fp);
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/* calculate avg in this second */
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cpu_perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / ((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3]));
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/* return cpu_perc as string */
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return smprintf("%d%%", cpu_perc);
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}
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/* date and time */
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char *
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datetime()
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{
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time_t tm;
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size_t bufsize = 19;
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char *buf = malloc(bufsize);
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/* get time in format */
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time(&tm);
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if(!strftime(buf, bufsize, timeformat, localtime(&tm))) {
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fprintf(stderr, "Strftime failed.\n");
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exit(1);
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}
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/* return time */
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return buf;
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}
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/* ram percentage */
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char *
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ram_usage()
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{
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int ram_perc;
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long total, free, available;
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FILE *fp;
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/* open meminfo file */
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if (!(fp = fopen("/proc/meminfo", "r"))) {
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fprintf(stderr, "Error opening meminfo file.");
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exit(1);
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}
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/* read the values */
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fscanf(fp, "MemTotal: %ld kB\n", &total);
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fscanf(fp, "MemFree: %ld kB\n", &free);
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fscanf(fp, "MemAvailable: %ld kB\n", &available);
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/* close meminfo file */
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fclose(fp);
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/* calculate percentage */
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ram_perc = 100 * (total - available) / total;
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/* return ram_perc as string */
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return smprintf("%d%%",ram_perc);
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}
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/* smprintf function */
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char *
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smprintf(char *fmt, ...)
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@ -50,14 +211,6 @@ smprintf(char *fmt, ...)
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return ret;
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}
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/* set statusbar (WM_NAME) */
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void
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setstatus(char *str)
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{
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XStoreName(dpy, DefaultRootWindow(dpy), str);
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XSync(dpy, False);
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}
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/* alsa volume percentage */
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char *
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volume()
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@ -99,29 +252,6 @@ volume()
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return smprintf("%d%%", (vol * 100) / max);
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}
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/* cpu temperature */
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char *
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cpu_temperature()
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{
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int temperature;
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FILE *fp;
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/* open temperature file */
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if (!(fp = fopen(tempfile, "r"))) {
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fprintf(stderr, "Could not open temperature file.\n");
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exit(1);
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}
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/* extract temperature */
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fscanf(fp, "%d", &temperature);
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/* close temperature file */
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fclose(fp);
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/* return temperature in degrees */
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return smprintf("%d°C", temperature / 1000);
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}
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/* wifi percentage */
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char *
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wifi_signal()
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@ -181,134 +311,7 @@ wifi_signal()
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return smprintf("%d%%", strength);
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}
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/* battery percentage */
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char *
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battery()
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{
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int batt_now, batt_full, batt_perc;
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FILE *fp;
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/* open battery now file */
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if (!(fp = fopen(batterynowfile, "r"))) {
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fprintf(stderr, "Error opening battery file.");
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exit(1);
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}
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/* read value */
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fscanf(fp, "%i", &batt_now);
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/* close battery now file */
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fclose(fp);
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/* open battery full file */
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if (!(fp = fopen(batteryfullfile, "r"))) {
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fprintf(stderr, "Error opening battery file.");
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exit(1);
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}
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/* read value */
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fscanf(fp, "%i", &batt_full);
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/* close battery full file */
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fclose(fp);
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/* calculate percent */
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batt_perc = batt_now / (batt_full / 100);
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/* return batt_perc as string */
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return smprintf("%d%%", batt_perc);
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}
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/* date and time */
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char *
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datetime()
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{
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time_t tm;
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size_t bufsize = 19;
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char *buf = malloc(bufsize);
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/* get time in format */
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time(&tm);
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if(!strftime(buf, bufsize, timeformat, localtime(&tm))) {
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fprintf(stderr, "Strftime failed.\n");
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exit(1);
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}
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/* return time */
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return buf;
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}
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/* cpu percentage */
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char *
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cpu_usage()
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{
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int cpu_perc;
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long double a[4], b[4];
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FILE *fp;
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/* open stat file */
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if (!(fp = fopen("/proc/stat","r"))) {
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fprintf(stderr, "Error opening stat file.");
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exit(1);
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}
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/* read values */
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
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/* close stat file */
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fclose(fp);
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/* wait a second (for avg values) */
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sleep(1);
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/* open stat file */
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if (!(fp = fopen("/proc/stat","r"))) {
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fprintf(stderr, "Error opening stat file.");
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exit(1);
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}
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/* read values */
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fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
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/* close stat file */
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fclose(fp);
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/* calculate avg in this second */
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cpu_perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / ((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3]));
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/* return cpu_perc as string */
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return smprintf("%d%%", cpu_perc);
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}
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/* ram percentage */
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char *
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ram_usage()
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{
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int ram_perc;
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long total, free, available;
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FILE *fp;
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/* open meminfo file */
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if (!(fp = fopen("/proc/meminfo", "r"))) {
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fprintf(stderr, "Error opening meminfo file.");
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exit(1);
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}
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/* read the values */
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fscanf(fp, "MemTotal: %ld kB\n", &total);
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fscanf(fp, "MemFree: %ld kB\n", &free);
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fscanf(fp, "MemAvailable: %ld kB\n", &available);
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/* close meminfo file */
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fclose(fp);
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/* calculate percentage */
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ram_perc = 100 * (total - available) / total;
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/* return ram_perc as string */
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return smprintf("%d%%",ram_perc);
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}
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/* main function */
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int
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main()
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{
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