112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
#define _GNU_SOURCE
|
|
#include <fcntl.h> // for AT_FDCWD
|
|
#include <sys/syscall.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <X11/Xlib.h>
|
|
#include <stdarg.h>
|
|
#include <sys/stat.h>
|
|
|
|
static volatile sig_atomic_t done;
|
|
struct arg {
|
|
const char *(*func)(const char *);
|
|
const char *fmt;
|
|
const char *args;
|
|
};
|
|
|
|
void die(const char *fmt, ...) {
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
fputc('\n', stderr);
|
|
exit(1);
|
|
}
|
|
|
|
static void terminate() {
|
|
done = 1;
|
|
}
|
|
|
|
const char* bgt(const char *_) {
|
|
(void)_;
|
|
static char buf[5];
|
|
time_t now = time(NULL), last = now;
|
|
FILE *f = fopen("/tmp/last_wallpaper_time", "r");
|
|
if (!f || fscanf(f, "%ld", &last) != 1) last = now;
|
|
if (f) fclose(f);
|
|
int rem = 600 - (int)(now - last);
|
|
if (rem < 0) rem = 0;
|
|
if (snprintf(buf, sizeof(buf), "%d:%02d", (rem / 60), (rem % 60)) < 0) return NULL;
|
|
return buf;
|
|
}
|
|
|
|
const char* vol(const char *_) {
|
|
(void)_;
|
|
static char buf[5];
|
|
float v;
|
|
FILE *fp = popen("wpctl get-volume @DEFAULT_AUDIO_SINK@", "r");
|
|
if (!fp || fscanf(fp, "Volume: %f", &v) != 1) return NULL;
|
|
pclose(fp);
|
|
snprintf(buf, sizeof(buf), "%d%%", (int)(v * 100));
|
|
return buf;
|
|
}
|
|
|
|
const char* age(const char *_) {
|
|
(void)_;
|
|
static char buf[4];
|
|
static time_t last;
|
|
time_t now = time(NULL);
|
|
if (now - last < 900) return buf;
|
|
time_t created;
|
|
struct statx stx;
|
|
created = (!syscall(SYS_statx, AT_FDCWD, "/", 0, STATX_BTIME, &stx) && (stx.stx_mask & STATX_BTIME)) ? stx.stx_btime.tv_sec : now;
|
|
snprintf(buf, sizeof(buf), "%d", (int)((now - created) / 86400));
|
|
last = now;
|
|
return buf;
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
static Display *dpy;
|
|
struct sigaction act;
|
|
size_t i, len;
|
|
int ret;
|
|
char status[36];
|
|
static const struct arg args[] = {
|
|
{ bgt, "W: %s · ", NULL },
|
|
{ vol, "V: %s · ", NULL },
|
|
{ age, "A: %sd", NULL },
|
|
};
|
|
|
|
memset(&act, 0, sizeof(act));
|
|
act.sa_handler = terminate;
|
|
sigaction(SIGINT, &act, NULL);
|
|
sigaction(SIGTERM, &act, NULL);
|
|
act.sa_flags |= SA_RESTART;
|
|
|
|
if (!(dpy = XOpenDisplay(NULL))) die("XOpenDisplay: Failed to open display");
|
|
do {
|
|
status[0] = '\0';
|
|
for (i = len = 0; i < (sizeof(args) / sizeof(args[0])); i++) {
|
|
const char *res = args[i].func(args[i].args);
|
|
if (!res) res = "n/a";
|
|
if ((ret = snprintf(status + len, sizeof(status) - len, args[i].fmt, res)) < 0) break;
|
|
len += ret;
|
|
}
|
|
|
|
if (XStoreName(dpy, DefaultRootWindow(dpy), status) < 0) die("XStoreName: Allocation failed");
|
|
XFlush(dpy);
|
|
|
|
if (!done) {
|
|
struct timespec ts = { .tv_sec = 0, .tv_nsec = 100 * 1000000 }; // 100ms
|
|
nanosleep(&ts, NULL);
|
|
}
|
|
} while (!done);
|
|
XStoreName(dpy, DefaultRootWindow(dpy), NULL);
|
|
if (XCloseDisplay(dpy) < 0) die("XCloseDisplay: Failed to close display");
|
|
return 0;
|
|
}
|