75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
#include <unistd.h>
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#include <stdio.h>
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#include <X11/Xlib.h>
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#include <time.h>
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#include <string.h>
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#define INTERVAL 10
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int main(void) {
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Display *display = XOpenDisplay(NULL);
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if (display == NULL) {
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fprintf(stderr, "dwmst: cannot open display.\n");
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}
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/* time */
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char tbuffer[128] = { 0 };
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time_t currentTime;
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struct tm *timeinfo;
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/* battery */
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char bbuffer[6] = { 0 };
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FILE *f;
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/* status */
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char status[256] = { 0 };
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for (;;sleep(INTERVAL)) {
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/* get current time */
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time(¤tTime);
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timeinfo = localtime(¤tTime);
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strftime(tbuffer, sizeof(tbuffer), "%a %b %d %H:%M", timeinfo);
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if (OPTION_BATTERY) {
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/* battery status */
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f = fopen("/sys/class/power_supply/BAT0/capacity", "r");
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if (f == NULL) {
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fprintf(stderr, "dwmst: cannot access battery.\n");
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} else {
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fgets(bbuffer, 4, f);
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strtok(bbuffer, "\n"); /* remove trailing white space */
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strcat(bbuffer, "%");
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fclose(f);
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}
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f = fopen("/sys/class/power_supply/BAT0/status", "r");
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if (f == NULL) {
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fprintf(stderr, "dwmst: cannot access battery.\n");
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} else {
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switch(getc(f)) {
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case 'D': /* Discharging */
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strcat(bbuffer, "-");
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break;
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case 'C': /* Charging */
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strcat(bbuffer, "+");
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break;
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case 'F': /* Full */
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strcat(bbuffer, "=");
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}
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fclose(f);
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}
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}
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/* build status */
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if (OPTION_BATTERY)
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sprintf(status, "%s | %s", tbuffer, bbuffer);
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else
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sprintf(status, "%s", tbuffer);
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/* store root window name */
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XStoreName(display, DefaultRootWindow(display), status);
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XSync(display, False);
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}
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}
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