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| author | clsr <clsr@clsr.net> | 2016-12-02 12:23:24 +0100 |
|---|---|---|
| committer | clsr <clsr@clsr.net> | 2016-12-02 12:23:24 +0100 |
| commit | e7a5b19c0ba06e12b0137a7ce5e65a15135d9977 (patch) | |
| tree | d0504639219accb576ed1dbac15352948884428c /dwmclock.c | |
| download | dwmclock-e7a5b19c0ba06e12b0137a7ce5e65a15135d9977.tar.gz dwmclock-e7a5b19c0ba06e12b0137a7ce5e65a15135d9977.zip | |
Initial commitv1.0.0
Diffstat (limited to 'dwmclock.c')
| -rw-r--r-- | dwmclock.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/dwmclock.c b/dwmclock.c new file mode 100644 index 0000000..cc4b5b2 --- /dev/null +++ b/dwmclock.c @@ -0,0 +1,120 @@ +#define _GNU_SOURCE + +#include <errno.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> +#include <X11/Xlib.h> + + +int stop = 0; + +#ifdef BATTERY +int getnum(char *fn) +{ + char buf[1024]; + FILE *f; + int len; + + f = fopen(fn, "r"); + if (!f) { + return -1; + } + len = fread(buf, 1, 1023, f); + if (ferror(f)) { + return -1; + } + fclose(f); + if (len > 1022 || len < 1) { + return -1; + } + buf[1023] = '\0'; + + return atoi(buf); +} +#endif + +void handler(int sig) +{ + stop = sig; +} + +int main(void) +{ + struct tm *tm; + time_t now; +#ifdef BATTERY + long long curr, max, a=-1, b=-1, i; + char name[8 + 9]; /* (p)pp.pp% hh:mm:ss\0 */ + char *perc = name; + char *clock = name + 8; +#else + char name[9]; /* hh:mm:ss\0 */ + char *clock = name; +#endif + struct sigaction act; + Display *disp; + int screen; + Window root; + + act.sa_handler = handler; + act.sa_flags = 0; + sigemptyset(&act.sa_mask); + sigaction(SIGHUP, &act, NULL); + sigaction(SIGINT, &act, NULL); + sigaction(SIGQUIT, &act, NULL); + sigaction(SIGTERM, &act, NULL); + + + disp = XOpenDisplay(NULL); +#ifdef BATTERY + for (i=0; !stop; ++i) { +#else + while (!stop) { +#endif + if (!disp) { + puts("Cannot open display!"); + return 1; + } + screen = DefaultScreen(disp); + root = RootWindow(disp, screen); +#ifdef BATTERY + if (i % (BAT_REFRESH_SECONDS) == 0) { + curr = getnum(ENERGY_NOW) * MUL; + max = getnum(ENERGY_FULL); + if (curr < 0 || max < 1) { + a = b = -1; + } else { + a = curr * 10000 / max; + b = a % 100; + a /= 100; + } + } + + if (a < 0 || b < 0) { + snprintf(perc, 8, "NO BAT "); + } else if (a < 0 || a > 999999 || b < 0 || b > 99) { + snprintf(perc, 8, "INVALID"); + } else if (a > 999) { + snprintf(perc, 8, "%6lld%%", a); + } else { + snprintf(perc, 8, "%3lld.%02lld%%", a, b); + } + perc[7] = ' '; +#endif + + now = time(NULL); + tm = localtime(&now); + strftime(clock, 9, "%H:%M:%S", tm); + + XStoreName(disp, root, name); + XFlush(disp); + sleep(1); + } + XCloseDisplay(disp); + + + return 0; +} |