/* functions */
void setstatus(char *str);
-char *battery();
-char *cpu_temperature();
-char *cpu_usage();
-char *datetime();
-char *ram_usage();
char *smprintf(char *fmt, ...);
-char *volume();
-char *wifi_signal();
+char *get_battery();
+char *get_cpu_temperature();
+char *get_cpu_usage();
+char *get_datetime();
+char *get_ram_usage();
+char *get_volume();
+char *get_wifi_signal();
/* global variables */
static Display *dpy;
XSync(dpy, False);
}
+/* smprintf function */
+char *
+smprintf(char *fmt, ...)
+{
+ va_list fmtargs;
+ char *ret = NULL;
+ va_start(fmtargs, fmt);
+ if (vasprintf(&ret, fmt, fmtargs) < 0)
+ return NULL;
+ va_end(fmtargs);
+
+ return ret;
+}
+
/* battery percentage */
char *
-battery()
+get_battery()
{
- int battery_now, battery_full, battery_perc;
+ int now, full, perc;
FILE *fp;
/* open battery now file */
}
/* read value */
- fscanf(fp, "%i", &battery_now);
+ fscanf(fp, "%i", &now);
/* close battery now file */
fclose(fp);
}
/* read value */
- fscanf(fp, "%i", &battery_full);
+ fscanf(fp, "%i", &full);
/* close battery full file */
fclose(fp);
/* calculate percent */
- battery_perc = battery_now / (battery_full / 100);
+ perc = now / (full / 100);
- /* return batt_perc as string */
- return smprintf("%d%%", battery_perc);
+ /* return perc as string */
+ return smprintf("%d%%", perc);
}
/* cpu temperature */
char *
-cpu_temperature()
+get_cpu_temperature()
{
int temperature;
FILE *fp;
/* cpu percentage */
char *
-cpu_usage()
+get_cpu_usage()
{
- int cpu_perc;
+ int perc;
long double a[4], b[4];
FILE *fp;
fclose(fp);
/* calculate avg in this second */
- 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]));
+ 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]));
- /* return cpu_perc as string */
- return smprintf("%d%%", cpu_perc);
+ /* return perc as string */
+ return smprintf("%d%%", perc);
}
/* date and time */
char *
-datetime()
+get_datetime()
{
time_t tm;
- size_t bufsize = 19;
+ size_t bufsize = 64;
char *buf = malloc(bufsize);
/* get time in format */
time(&tm);
if(!strftime(buf, bufsize, timeformat, localtime(&tm))) {
- fprintf(stderr, "Strftime failed.\n");
+ fprintf(stderr, "Strftime failed.\n");
exit(1);
}
/* return time */
- return buf;
+ return smprintf("%s", buf);
}
/* ram percentage */
char *
-ram_usage()
+get_ram_usage()
{
- int ram_perc;
- long total, free, available;
+ int perc;
+ long total, free, buffers, cached;
FILE *fp;
/* open meminfo file */
/* read the values */
fscanf(fp, "MemTotal: %ld kB\n", &total);
fscanf(fp, "MemFree: %ld kB\n", &free);
- fscanf(fp, "MemAvailable: %ld kB\n", &available);
+ fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
+ fscanf(fp, "Cached: %ld kB\n", &cached);
/* close meminfo file */
fclose(fp);
/* calculate percentage */
- ram_perc = 100 * (total - available) / total;
-
- /* return ram_perc as string */
- return smprintf("%d%%",ram_perc);
-}
-
-/* smprintf function */
-char *
-smprintf(char *fmt, ...)
-{
- va_list fmtargs;
- char *ret;
- int len;
-
- va_start(fmtargs, fmt);
- len = vsnprintf(NULL, 0, fmt, fmtargs);
- va_end(fmtargs);
-
- ret = malloc(++len);
- if (ret == NULL) {
- fprintf(stderr, "Malloc error.");
- exit(1);
- }
-
- va_start(fmtargs, fmt);
- vsnprintf(ret, len, fmt, fmtargs);
- va_end(fmtargs);
+ perc = 100 * ((total - free) - (buffers + cached)) / total;
- return ret;
+ /* return perc as string */
+ return smprintf("%d%%", perc);
}
/* alsa volume percentage */
char *
-volume()
+get_volume()
{
int mute = 0;
long vol = 0, max = 0, min = 0;
-
+
/* get volume from alsa */
snd_mixer_t *handle;
snd_mixer_elem_t *pcm_mixer, *mas_mixer;
snd_mixer_selem_id_set_name(mute_info, channel);
pcm_mixer = snd_mixer_find_selem(handle, vol_info);
mas_mixer = snd_mixer_find_selem(handle, mute_info);
- snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer,
- &min, &max);
- snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer,
- SND_MIXER_SCHN_MONO, &vol);
- snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO,
- &mute);
+ snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, &min, &max);
+ snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, SND_MIXER_SCHN_MONO, &vol);
+ snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, &mute);
if (vol_info)
snd_mixer_selem_id_free(vol_info);
if (mute_info)
/* wifi percentage */
char *
-wifi_signal()
+get_wifi_signal()
{
int bufsize = 255;
int strength;
char path_end[11] = "/operstate";
char path[32];
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, wificard);
strcat(path, path_end);
}
/* extract the signal strength */
+ strcpy(needle, wificard);
+ strcat(needle, ":");
fgets(buf, bufsize, fp);
fgets(buf, bufsize, fp);
fgets(buf, bufsize, fp);
- if ((datastart = strstr(buf, "wlp3s0:")) != NULL) {
+ if ((datastart = strstr(buf, needle)) != NULL) {
datastart = strstr(buf, ":");
sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &strength);
}
main()
{
char status[1024];
+ char *battery = NULL;
+ char *cpu_temperature = NULL;
+ char *cpu_usage = NULL;
+ char *datetime = NULL;
+ char *ram_usage = NULL;
+ char *volume = NULL;
+ char *wifi_signal = NULL;
/* open display */
if (!(dpy = XOpenDisplay(0x0))) {
exit(1);
}
- char *pWifi_signal = NULL;
- char *pBattery = NULL;
- char *pCpu_usage = NULL;
- char *pCpu_temperature = NULL;
- char *pRam_usage = NULL;
- char *pVolume = NULL;
- char *pDatetime = NULL;
-
- /* return status every second */
+ /* return status every second */
for (;;) {
- pWifi_signal = wifi_signal();
- pBattery = battery();
- pCpu_usage = cpu_usage();
- pCpu_temperature = cpu_temperature();
- pRam_usage = ram_usage();
- pVolume = volume();
- pDatetime = datetime();
+ /* assign the values */
+ battery = get_battery();
+ cpu_temperature = get_cpu_temperature();
+ cpu_usage = get_cpu_usage();
+ datetime = get_datetime();
+ ram_usage = get_ram_usage();
+ volume = get_volume();
+ wifi_signal = get_wifi_signal();
+
+ /* return the status */
sprintf(status, FORMATSTRING, ARGUMENTS);
setstatus(status);
- free(pWifi_signal);
- free(pBattery);
- free(pCpu_usage);
- free(pCpu_temperature);
- free(pRam_usage);
- free(pVolume);
- free(pDatetime);
+
+ /* free the values */
+ free(battery);
+ free(cpu_temperature);
+ free(cpu_usage);
+ free(datetime);
+ free(ram_usage);
+ free(volume);
+ free(wifi_signal);
}
/* close display */