X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/d144c8de3d1db270722c52a8d34727e38c69dc91..e213b48122f1f8e8d837053324d9c891a67a38d2:/slstatus.c
diff --git a/slstatus.c b/slstatus.c
index 9e6aca0..96fa5b6 100644
--- a/slstatus.c
+++ b/slstatus.c
@@ -1,866 +1,136 @@
/* See LICENSE file for copyright and license details. */
-
-#include <err.h>
-#include <fcntl.h>
-#include <ifaddrs.h>
-#include <limits.h>
-#include <linux/wireless.h>
-#include <locale.h>
-#include <netdb.h>
-#include <pwd.h>
+#include <errno.h>
#include <signal.h>
-#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/statvfs.h>
-#include <sys/socket.h>
-#include <sys/soundcard.h>
-#include <sys/sysinfo.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
#include <time.h>
-#include <unistd.h>
#include <X11/Xlib.h>
#include "arg.h"
+#include "slstatus.h"
+#include "util.h"
struct arg {
- char *(*func)();
+ const char *(*func)();
const char *fmt;
const char *args;
};
-static char *smprintf(const char *fmt, ...);
-static char *battery_perc(const char *bat);
-static char *battery_state(const char *bat);
-static char *cpu_perc(void);
-static char *datetime(const char *fmt);
-static char *disk_free(const char *mnt);
-static char *disk_perc(const char *mnt);
-static char *disk_total(const char *mnt);
-static char *disk_used(const char *mnt);
-static char *entropy(void);
-static char *gid(void);
-static char *hostname(void);
-static char *ip(const char *iface);
-static char *kernel_release(void);
-static char *keyboard_indicators(void);
-static char *load_avg(void);
-static char *ram_free(void);
-static char *ram_perc(void);
-static char *ram_used(void);
-static char *ram_total(void);
-static char *run_command(const char *cmd);
-static char *swap_free(void);
-static char *swap_perc(void);
-static char *swap_used(void);
-static char *swap_total(void);
-static char *temp(const char *file);
-static char *uid(void);
-static char *uptime(void);
-static char *username(void);
-static char *vol_perc(const char *card);
-static char *wifi_perc(const char *iface);
-static char *wifi_essid(const char *iface);
-static void sighandler(const int signo);
-static void usage(const int eval);
-
-char *argv0;
-static unsigned short int delay = 0;
-static unsigned short int done;
-static unsigned short int dflag, oflag;
+char buf[1024];
+static int done;
static Display *dpy;
#include "config.h"
-static char *
-smprintf(const char *fmt, ...)
-{
- va_list ap;
- char *ret;
- int len;
-
- va_start(ap, fmt);
- len = vsnprintf(NULL, 0, fmt, ap);
- va_end(ap);
-
- ret = malloc(++len);
- if (ret == NULL) {
- err(1, "malloc");
- }
-
- va_start(ap, fmt);
- vsnprintf(ret, len, fmt, ap);
- va_end(ap);
-
- return ret;
-}
-
-static char *
-battery_perc(const char *bat)
-{
- int perc;
- char path[PATH_MAX];
- FILE *fp;
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/capacity");
- fp = fopen(path, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", path);
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "%i", &perc);
- fclose(fp);
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-battery_state(const char *bat)
-{
- char path[PATH_MAX];
- char state[12];
- FILE *fp;
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/status");
- fp = fopen(path, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", path);
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "%12s", state);
- fclose(fp);
-
- if (strcmp(state, "Charging") == 0) {
- return smprintf("+");
- } else if (strcmp(state, "Discharging") == 0) {
- return smprintf("-");
- } else if (strcmp(state, "Full") == 0) {
- return smprintf("=");
- } else if (strcmp(state, "Unknown") == 0) {
- return smprintf("/");
- } else {
- return smprintf("?");
- }
-}
-
-static char *
-cpu_perc(void)
-{
- int perc;
- long double a[4], b[4];
- FILE *fp;
-
- fp = fopen("/proc/stat", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/stat");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
- fclose(fp);
-
- delay++;
- sleep(delay);
-
- fp = fopen("/proc/stat", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/stat");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
- fclose(fp);
-
- 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 smprintf("%d%%", perc);
-}
-
-static char *
-datetime(const char *fmt)
-{
- time_t t;
- char str[80];
-
- t = time(NULL);
- if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) {
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%s", str);
-}
-
-static char *
-disk_free(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
-}
-
-static char *
-disk_perc(const char *mnt)
-{
- int perc;
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-disk_total(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
-}
-
-static char *
-disk_used(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
-}
-
-static char *
-entropy(void)
-{
- int num;
- FILE *fp;
-
- fp= fopen("/proc/sys/kernel/random/entropy_avail", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/sys/kernel/random/entropy_avail");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "%d", &num);
- fclose(fp);
-
- return smprintf("%d", num);
-}
-
-static char *
-gid(void)
-{
- return smprintf("%d", getgid());
-}
-
-static char *
-hostname(void)
-{
- char buf[HOST_NAME_MAX];
-
- if (gethostname(buf, sizeof(buf)) == -1) {
- warn("hostname");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%s", buf);
-}
-
-static char *
-ip(const char *iface)
-{
- struct ifaddrs *ifaddr, *ifa;
- int s;
- char host[NI_MAXHOST];
-
- if (getifaddrs(&ifaddr) == -1) {
- warn("Failed to get IP address for interface %s", iface);
- return smprintf("%s", UNKNOWN_STR);
- }
-
- for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
- if (ifa->ifa_addr == NULL) {
- continue;
- }
- s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
- if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
- if (s != 0) {
- warnx("Failed to get IP address for interface %s", iface);
- return smprintf("%s", UNKNOWN_STR);
- }
- return smprintf("%s", host);
- }
- }
-
- freeifaddrs(ifaddr);
-
- return smprintf("%s", UNKNOWN_STR);
-}
-
-static char *
-kernel_release(void)
-{
- struct utsname udata;
-
- if (uname(&udata) < 0) {
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%s", udata.release);
-}
-
-static char *
-keyboard_indicators(void)
-{
- Display *dpy = XOpenDisplay(NULL);
- XKeyboardState state;
- XGetKeyboardControl(dpy, &state);
- XCloseDisplay(dpy);
-
- switch (state.led_mask) {
- case 1:
- return smprintf("c");
- break;
- case 2:
- return smprintf("n");
- break;
- case 3:
- return smprintf("cn");
- break;
- default:
- return smprintf("");
- }
-}
-
-static char *
-load_avg(void)
-{
- double avgs[3];
-
- if (getloadavg(avgs, 3) < 0) {
- warnx("Failed to get the load avg");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
-}
-
-static char *
-ram_free(void)
-{
- long free;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "MemFree: %ld kB\n", &free);
- fclose(fp);
-
- return smprintf("%f", (float)free / 1024 / 1024);
-}
-
-static char *
-ram_perc(void)
-{
- long total, free, buffers, cached;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "MemTotal: %ld kB\n", &total);
- fscanf(fp, "MemFree: %ld kB\n", &free);
- fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
- fscanf(fp, "Cached: %ld kB\n", &cached);
- fclose(fp);
-
- return smprintf("%d%%", 100 * ((total - free) - (buffers + cached)) / total);
-}
-
-static char *
-ram_total(void)
-{
- long total;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "MemTotal: %ld kB\n", &total);
- fclose(fp);
-
- return smprintf("%f", (float)total / 1024 / 1024);
-}
-
-static char *
-ram_used(void)
-{
- long free, total, buffers, cached;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "MemTotal: %ld kB\n", &total);
- fscanf(fp, "MemFree: %ld kB\n", &free);
- fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
- fscanf(fp, "Cached: %ld kB\n", &cached);
- fclose(fp);
-
- return smprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
-}
-
-static char *
-run_command(const char *cmd)
-{
- char *nlptr;
- FILE *fp;
- char buf[1024] = UNKNOWN_STR;
-
- fp = popen(cmd, "r");
- if (fp == NULL) {
- warn("Failed to get command output for %s", cmd);
- return smprintf("%s", UNKNOWN_STR);
- }
- fgets(buf, sizeof(buf), fp);
- pclose(fp);
- buf[sizeof(buf) - 1] = '\0';
-
- if ((nlptr = strrchr(buf, '\n')) != NULL) {
- nlptr[0] = '\0';
- }
-
- return smprintf("%s", buf);
-}
-
-static char *
-swap_free(void)
-{
- long total, free;
- FILE *fp;
- char buf[2048];
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_free: read error");
- fclose(fp);
- return smprintf("%s", UNKNOWN_STR);
- }
-
- buf[bytes_read] = '\0';
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapFree")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return smprintf("%f", (float)free / 1024 / 1024);
-}
-
-static char *
-swap_perc(void)
-{
- long total, free, cached;
- FILE *fp;
- char buf[2048];
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_perc: read error");
- fclose(fp);
- return smprintf("%s", UNKNOWN_STR);
- }
-
- buf[bytes_read] = '\0';
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapCached")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapCached: %ld kB\n", &cached);
-
- if ((match = strstr(buf, "SwapFree")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return smprintf("%d%%", 100 * (total - free - cached) / total);
-}
-
-static char *
-swap_total(void)
-{
- long total;
- FILE *fp;
- char buf[2048];
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_total: read error");
- fclose(fp);
- return smprintf("%s", UNKNOWN_STR);
- }
-
- buf[bytes_read] = '\0';
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- return smprintf("%f", (float)total / 1024 / 1024);
-}
-
-static char *
-swap_used(void)
-{
- long total, free, cached;
- FILE *fp;
- char buf[2048];
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf("%s", UNKNOWN_STR);
- }
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- warn("swap_used: read error");
- fclose(fp);
- return smprintf("%s", UNKNOWN_STR);
- }
-
- buf[bytes_read] = '\0';
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapCached")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapCached: %ld kB\n", &cached);
-
- if ((match = strstr(buf, "SwapFree")) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return smprintf("%f", (float)(total - free - cached) / 1024 / 1024);
-}
-
-static char *
-temp(const char *file)
-{
- int temp;
- FILE *fp;
-
- fp = fopen(file, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", file);
- return smprintf("%s", UNKNOWN_STR);
- }
- fscanf(fp, "%d", &temp);
- fclose(fp);
-
- return smprintf("%d°C", temp / 1000);
-}
-
-static char *
-uptime(void)
-{
- struct sysinfo info;
- int h = 0;
- int m = 0;
-
- sysinfo(&info);
- h = info.uptime / 3600;
- m = (info.uptime - h * 3600 ) / 60;
-
- return smprintf("%dh %dm", h, m);
-}
-
-static char *
-username(void)
-{
- struct passwd *pw = getpwuid(geteuid());
-
- if (pw == NULL) {
- warn("Failed to get username");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- return smprintf("%s", pw->pw_name);
-}
-
-static char *
-uid(void)
-{
- return smprintf("%d", geteuid());
-}
-
-
-static char *
-vol_perc(const char *card)
-{
- unsigned int i;
- int v, afd, devmask;
- char *vnames[] = SOUND_DEVICE_NAMES;
-
- afd = open(card, O_RDONLY | O_NONBLOCK);
- if (afd == -1) {
- warn("Cannot open %s", card);
- return smprintf(UNKNOWN_STR);
- }
-
- if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
- warn("Cannot get volume for %s", card);
- close(afd);
- return smprintf("%s", UNKNOWN_STR);
- }
- for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); i++) {
- if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
- if (ioctl(afd, MIXER_READ(i), &v) == -1) {
- warn("vol_perc: ioctl");
- close(afd);
- return smprintf("%s", UNKNOWN_STR);
- }
- }
- }
-
- close(afd);
-
- return smprintf("%d%%", v & 0xff);
-}
-
-static char *
-wifi_perc(const char *iface)
-{
- int perc;
- char buf[255];
- char *datastart;
- char path[PATH_MAX];
- char status[5];
- FILE *fp;
-
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
- fp = fopen(path, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", path);
- return smprintf("%s", UNKNOWN_STR);
- }
- fgets(status, 5, fp);
- fclose(fp);
- if(strcmp(status, "up\n") != 0) {
- return smprintf("%s", UNKNOWN_STR);
- }
-
- fp = fopen("/proc/net/wireless", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/net/wireless");
- return smprintf("%s", UNKNOWN_STR);
- }
-
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fclose(fp);
-
- if ((datastart = strstr(buf, iface)) == NULL) {
- return smprintf("%s", UNKNOWN_STR);
- }
- datastart = (datastart+(strlen(iface)+1));
- sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-wifi_essid(const char *iface)
+static void
+terminate(const int signo)
{
- char id[IW_ESSID_MAX_SIZE+1];
- int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
- struct iwreq wreq;
-
- memset(&wreq, 0, sizeof(struct iwreq));
- wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
- snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
+ (void)signo;
- if (sockfd == -1) {
- warn("Failed to get ESSID for interface %s", iface);
- return smprintf("%s", UNKNOWN_STR);
- }
- wreq.u.essid.pointer = id;
- if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
- warn("Failed to get ESSID for interface %s", iface);
- return smprintf("%s", UNKNOWN_STR);
- }
-
- close(sockfd);
-
- if (strcmp((char *)wreq.u.essid.pointer, "") == 0)
- return smprintf("%s", UNKNOWN_STR);
- else
- return smprintf("%s", (char *)wreq.u.essid.pointer);
+ done = 1;
}
static void
-sighandler(const int signo)
+difftimespec(struct timespec *res, struct timespec *a, struct timespec *b)
{
- if (signo == SIGTERM || signo == SIGINT) {
- done = 1;
- }
+ res->tv_sec = a->tv_sec - b->tv_sec - (a->tv_nsec < b->tv_nsec);
+ res->tv_nsec = a->tv_nsec - b->tv_nsec +
+ (a->tv_nsec < b->tv_nsec) * 1E9;
}
static void
-usage(const int eval)
+usage(void)
{
- fprintf(stderr, "usage: %s [-d] [-o] [-v] [-h]\n", argv0);
- exit(eval);
+ die("usage: %s [-s]", argv0);
}
int
main(int argc, char *argv[])
{
- unsigned short int i;
- char status_string[2048];
- char *res, *element;
- struct arg argument;
struct sigaction act;
+ struct timespec start, current, diff, intspec, wait;
+ size_t i, len;
+ int sflag, ret;
+ char status[MAXLEN];
+ const char *res;
+ sflag = 0;
ARGBEGIN {
- case 'd':
- dflag = 1;
- break;
- case 'o':
- oflag = 1;
+ case 's':
+ sflag = 1;
break;
- case 'v':
- printf("slstatus (C) 2016-2017 slstatus engineers\n");
- return 0;
- case 'h':
- usage(0);
default:
- usage(1);
+ usage();
} ARGEND
- if (dflag && oflag) {
- usage(1);
- }
- if (dflag && daemon(1, 1) < 0) {
- err(1, "daemon");
+ if (argc) {
+ usage();
}
memset(&act, 0, sizeof(act));
- act.sa_handler = sighandler;
- sigaction(SIGINT, &act, 0);
- sigaction(SIGTERM, &act, 0);
+ act.sa_handler = terminate;
+ sigaction(SIGINT, &act, NULL);
+ sigaction(SIGTERM, &act, NULL);
- if (!oflag) {
- dpy = XOpenDisplay(NULL);
+ if (!sflag && !(dpy = XOpenDisplay(NULL))) {
+ die("XOpenDisplay: Failed to open display");
}
- setlocale(LC_ALL, "");
-
while (!done) {
- status_string[0] = '\0';
+ if (clock_gettime(CLOCK_MONOTONIC, &start) < 0) {
+ die("clock_gettime:");
+ }
- for (i = 0; i < sizeof(args) / sizeof(args[0]); ++i) {
- argument = args[i];
- if (argument.args == NULL) {
- res = argument.func();
- } else {
- res = argument.func(argument.args);
+ status[0] = '\0';
+ for (i = len = 0; i < LEN(args); i++) {
+ if (!(res = args[i].func(args[i].args))) {
+ res = unknown_str;
}
- element = smprintf(argument.fmt, res);
- if (element == NULL) {
- element = smprintf("%s", UNKNOWN_STR);
- warnx("Failed to format output");
+ if ((ret = esnprintf(status + len, sizeof(status) - len,
+ args[i].fmt, res)) < 0) {
+ break;
}
- strncat(status_string, element, sizeof(status_string) - strlen(status_string) - 1);
- free(res);
- free(element);
+ len += ret;
}
- if (!oflag) {
- XStoreName(dpy, DefaultRootWindow(dpy), status_string);
- XSync(dpy, False);
+ if (sflag) {
+ puts(status);
+ fflush(stdout);
+ if (ferror(stdout))
+ die("puts:");
} else {
- printf("%s\n", status_string);
+ if (XStoreName(dpy, DefaultRootWindow(dpy), status)
+ < 0) {
+ die("XStoreName: Allocation failed");
+ }
+ XFlush(dpy);
}
- if ((UPDATE_INTERVAL - delay) <= 0) {
- delay = 0;
- continue;
- } else {
- sleep(UPDATE_INTERVAL - delay);
- delay = 0;
+ if (!done) {
+ if (clock_gettime(CLOCK_MONOTONIC, ¤t) < 0) {
+ die("clock_gettime:");
+ }
+ difftimespec(&diff, ¤t, &start);
+
+ intspec.tv_sec = interval / 1000;
+ intspec.tv_nsec = (interval % 1000) * 1E6;
+ difftimespec(&wait, &intspec, &diff);
+
+ if (wait.tv_sec >= 0) {
+ if (nanosleep(&wait, NULL) < 0 &&
+ errno != EINTR) {
+ die("nanosleep:");
+ }
+ }
}
}
- if (!oflag) {
+ if (!sflag) {
XStoreName(dpy, DefaultRootWindow(dpy), NULL);
- XCloseDisplay(dpy);
+ if (XCloseDisplay(dpy) < 0) {
+ die("XCloseDisplay: Failed to close display");
+ }
}
return 0;