2 * vim:ts=4:sw=4:expandtab
4 * i3status – Generates a status line for dzen2 or xmobar
6 * Copyright © 2008 Michael Stapelberg and contributors
7 * Copyright © 2009 Thorsten Toepper <atsutane at freethoughts dot de>
8 * Copyright © 2010 Axel Wagner <mail at merovius dot de>
9 * Copyright © 2010 Fernando Tarlá Cardoso Lemos <fernandotcl at gmail dot com>
11 * See file LICENSE for license information.
20 #include <sys/socket.h>
21 #include <netinet/in.h>
27 #include <sys/types.h>
32 #include <yajl/yajl_gen.h>
33 #include <yajl/yajl_version.h>
37 #define exit_if_null(pointer, ...) \
39 if (pointer == NULL) \
43 #define CFG_CUSTOM_ALIGN_OPT \
44 CFG_STR_CB("align", NULL, CFGF_NONE, parse_align)
46 #define CFG_COLOR_OPTS(good, degraded, bad) \
47 CFG_STR("color_good", good, CFGF_NONE), \
48 CFG_STR("color_degraded", degraded, CFGF_NONE), \
49 CFG_STR("color_bad", bad, CFGF_NONE)
51 #define CFG_CUSTOM_COLOR_OPTS CFG_COLOR_OPTS(NULL, NULL, NULL)
53 #define CFG_CUSTOM_MIN_WIDTH_OPT \
54 CFG_PTR_CB("min_width", NULL, CFGF_NONE, parse_min_width, free)
56 /* socket file descriptor for general purposes */
59 static bool exit_upon_signal = false;
61 cfg_t *cfg, *cfg_general, *cfg_section;
65 pthread_cond_t i3status_sleep_cond = PTHREAD_COND_INITIALIZER;
66 pthread_mutex_t i3status_sleep_mutex = PTHREAD_MUTEX_INITIALIZER;
69 * Set the exit_upon_signal flag, because one cannot do anything in a safe
70 * manner in a signal handler (e.g. fprintf, which we really want to do for
71 * debugging purposes), see
72 * https://www.securecoding.cert.org/confluence/display/seccode/SIG30-C.+Call+only+asynchronous-safe+functions+within+signal+handlers
75 void fatalsig(int signum) {
76 exit_upon_signal = true;
80 * Do nothing upon SIGUSR1. Running this signal handler will nevertheless
81 * interrupt nanosleep() so that i3status immediately generates new output.
84 void sigusr1(int signum) {
88 * Checks if the given path exists by calling stat().
91 static bool path_exists(const char *path) {
93 return (stat(path, &buf) == 0);
96 static void *scalloc(size_t size) {
97 void *result = calloc(size, 1);
98 exit_if_null(result, "Error: out of memory (calloc(%zd))\n", size);
102 static char *sstrdup(const char *str) {
103 char *result = strdup(str);
104 exit_if_null(result, "Error: out of memory (strdup())\n");
109 * Parses the "align" module option (to validate input).
111 static int parse_align(cfg_t *context, cfg_opt_t *option, const char *value, void *result) {
112 if (strcasecmp(value, "left") != 0 && strcasecmp(value, "right") != 0 && strcasecmp(value, "center") != 0)
113 die("Invalid alignment attribute found in section %s, line %d: \"%s\"\n"
114 "Valid attributes are: left, center, right\n",
115 context->name, context->line, value);
117 const char **cresult = result;
124 * Parses the "min_width" module option whose value can either be a string or an integer.
126 static int parse_min_width(cfg_t *context, cfg_opt_t *option, const char *value, void *result) {
128 long num = strtol(value, &end, 10);
131 die("Invalid min_width attribute found in section %s, line %d: %d\n"
132 "Expected positive integer or string\n",
133 context->name, context->line, num);
134 else if (num == LONG_MIN || num == LONG_MAX || (end && *end != '\0'))
137 if (strlen(value) == 0)
138 die("Empty min_width attribute found in section %s, line %d\n"
139 "Expected positive integer or non-empty string\n",
140 context->name, context->line);
142 if (strcmp(value, "0") == 0)
143 die("Invalid min_width attribute found in section %s, line %d: \"%s\"\n"
144 "Expected positive integer or string\n",
145 context->name, context->line, value);
147 struct min_width *parsed = scalloc(sizeof(struct min_width));
150 /* num is preferred, but if it’s 0 (i.e. not valid), store and use
151 * the raw string value */
153 parsed->str = sstrdup(value);
155 struct min_width **cresult = result;
162 * Validates a color in "#RRGGBB" format
165 static int valid_color(const char *value) {
166 if (strlen(value) != 7)
170 for (int i = 1; i < 7; ++i) {
171 if (value[i] >= '0' && value[i] <= '9')
173 if (value[i] >= 'a' && value[i] <= 'f')
175 if (value[i] >= 'A' && value[i] <= 'F')
183 * This function resolves ~ in pathnames.
184 * It may resolve wildcards in the first part of the path, but if no match
185 * or multiple matches are found, it just returns a copy of path as given.
188 static char *resolve_tilde(const char *path) {
189 static glob_t globbuf;
190 char *head, *tail, *result = NULL;
192 tail = strchr(path, '/');
193 head = strndup(path, tail ? (size_t)(tail - path) : strlen(path));
195 int res = glob(head, GLOB_TILDE, NULL, &globbuf);
197 /* no match, or many wildcard matches are bad */
198 if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
199 result = sstrdup(path);
201 die("glob() failed");
203 head = globbuf.gl_pathv[0];
204 result = scalloc(strlen(head) + (tail ? strlen(tail) : 0) + 1);
205 strncpy(result, head, strlen(head));
207 strncat(result, tail, strlen(tail));
214 static char *get_config_path(void) {
215 char *xdg_config_home, *xdg_config_dirs, *config_path;
217 /* 1: check the traditional path under the home directory */
218 config_path = resolve_tilde("~/.i3status.conf");
219 if (path_exists(config_path))
222 /* 2: check for $XDG_CONFIG_HOME/i3status/config */
223 if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL)
224 xdg_config_home = "~/.config";
226 xdg_config_home = resolve_tilde(xdg_config_home);
227 if (asprintf(&config_path, "%s/i3status/config", xdg_config_home) == -1)
228 die("asprintf() failed");
229 free(xdg_config_home);
231 if (path_exists(config_path))
235 /* 3: check the traditional path under /etc */
236 config_path = SYSCONFDIR "/i3status.conf";
237 if (path_exists(config_path))
238 return sstrdup(config_path);
240 /* 4: check for $XDG_CONFIG_DIRS/i3status/config */
241 if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL)
242 xdg_config_dirs = "/etc/xdg";
244 char *buf = strdup(xdg_config_dirs);
245 char *tok = strtok(buf, ":");
246 while (tok != NULL) {
247 tok = resolve_tilde(tok);
248 if (asprintf(&config_path, "%s/i3status/config", tok) == -1)
249 die("asprintf() failed");
251 if (path_exists(config_path)) {
256 tok = strtok(NULL, ":");
260 die("Unable to find the configuration file (looked at "
261 "~/.i3status.conf, $XDG_CONFIG_HOME/i3status/config, "
262 "/etc/i3status.conf and $XDG_CONFIG_DIRS/i3status/config)");
267 * Returns the default separator to use if no custom separator has been specified.
269 static char *get_default_separator() {
270 if (output_format == O_DZEN2)
271 return "^p(5;-2)^ro(2)^p()^p(5)";
272 if (output_format == O_I3BAR)
273 // anything besides the empty string indicates that the default separator should be used
278 int main(int argc, char *argv[]) {
281 cfg_opt_t general_opts[] = {
282 CFG_STR("output_format", "auto", CFGF_NONE),
283 CFG_BOOL("colors", 1, CFGF_NONE),
284 CFG_STR("separator", "default", CFGF_NONE),
285 CFG_STR("color_separator", "#333333", CFGF_NONE),
286 CFG_INT("interval", 1, CFGF_NONE),
287 CFG_COLOR_OPTS("#00FF00", "#FFFF00", "#FF0000"),
290 cfg_opt_t run_watch_opts[] = {
291 CFG_STR("pidfile", NULL, CFGF_NONE),
292 CFG_STR("format", "%title: %status", CFGF_NONE),
293 CFG_STR("format_down", NULL, CFGF_NONE),
294 CFG_CUSTOM_ALIGN_OPT,
295 CFG_CUSTOM_COLOR_OPTS,
296 CFG_CUSTOM_MIN_WIDTH_OPT,
299 cfg_opt_t path_exists_opts[] = {
300 CFG_STR("path", NULL, CFGF_NONE),
301 CFG_STR("format", "%title: %status", CFGF_NONE),
302 CFG_STR("format_down", NULL, CFGF_NONE),
303 CFG_CUSTOM_ALIGN_OPT,
304 CFG_CUSTOM_COLOR_OPTS,
305 CFG_CUSTOM_MIN_WIDTH_OPT,
308 cfg_opt_t wireless_opts[] = {
309 CFG_STR("format_up", "W: (%quality at %essid, %bitrate) %ip", CFGF_NONE),
310 CFG_STR("format_down", "W: down", CFGF_NONE),
311 CFG_CUSTOM_ALIGN_OPT,
312 CFG_CUSTOM_COLOR_OPTS,
313 CFG_CUSTOM_MIN_WIDTH_OPT,
316 cfg_opt_t ethernet_opts[] = {
317 CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
318 CFG_STR("format_down", "E: down", CFGF_NONE),
319 CFG_CUSTOM_ALIGN_OPT,
320 CFG_CUSTOM_COLOR_OPTS,
321 CFG_CUSTOM_MIN_WIDTH_OPT,
324 cfg_opt_t ipv6_opts[] = {
325 CFG_STR("format_up", "%ip", CFGF_NONE),
326 CFG_STR("format_down", "no IPv6", CFGF_NONE),
327 CFG_CUSTOM_ALIGN_OPT,
328 CFG_CUSTOM_COLOR_OPTS,
329 CFG_CUSTOM_MIN_WIDTH_OPT,
332 cfg_opt_t battery_opts[] = {
333 CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
334 CFG_STR("format_down", "No battery", CFGF_NONE),
335 CFG_STR("status_chr", "CHR", CFGF_NONE),
336 CFG_STR("status_bat", "BAT", CFGF_NONE),
337 CFG_STR("status_full", "FULL", CFGF_NONE),
338 CFG_STR("path", "/sys/class/power_supply/BAT%d/uevent", CFGF_NONE),
339 CFG_INT("low_threshold", 30, CFGF_NONE),
340 CFG_STR("threshold_type", "time", CFGF_NONE),
341 CFG_BOOL("last_full_capacity", false, CFGF_NONE),
342 CFG_BOOL("integer_battery_capacity", false, CFGF_NONE),
343 CFG_BOOL("hide_seconds", false, CFGF_NONE),
344 CFG_CUSTOM_ALIGN_OPT,
345 CFG_CUSTOM_COLOR_OPTS,
346 CFG_CUSTOM_MIN_WIDTH_OPT,
349 cfg_opt_t time_opts[] = {
350 CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE),
351 CFG_CUSTOM_ALIGN_OPT,
352 CFG_CUSTOM_MIN_WIDTH_OPT,
355 cfg_opt_t tztime_opts[] = {
356 CFG_STR("format", "%Y-%m-%d %H:%M:%S %Z", CFGF_NONE),
357 CFG_STR("timezone", "", CFGF_NONE),
358 CFG_CUSTOM_ALIGN_OPT,
359 CFG_CUSTOM_MIN_WIDTH_OPT,
362 cfg_opt_t ddate_opts[] = {
363 CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE),
364 CFG_CUSTOM_ALIGN_OPT,
365 CFG_CUSTOM_MIN_WIDTH_OPT,
368 cfg_opt_t load_opts[] = {
369 CFG_STR("format", "%1min %5min %15min", CFGF_NONE),
370 CFG_FLOAT("max_threshold", 5, CFGF_NONE),
371 CFG_CUSTOM_ALIGN_OPT,
372 CFG_CUSTOM_COLOR_OPTS,
373 CFG_CUSTOM_MIN_WIDTH_OPT,
376 cfg_opt_t usage_opts[] = {
377 CFG_STR("format", "%usage", CFGF_NONE),
378 CFG_CUSTOM_ALIGN_OPT,
379 CFG_CUSTOM_MIN_WIDTH_OPT,
382 cfg_opt_t temp_opts[] = {
383 CFG_STR("format", "%degrees C", CFGF_NONE),
384 CFG_STR("path", NULL, CFGF_NONE),
385 CFG_INT("max_threshold", 75, CFGF_NONE),
386 CFG_CUSTOM_ALIGN_OPT,
387 CFG_CUSTOM_COLOR_OPTS,
388 CFG_CUSTOM_MIN_WIDTH_OPT,
391 cfg_opt_t disk_opts[] = {
392 CFG_STR("format", "%free", CFGF_NONE),
393 CFG_STR("format_not_mounted", NULL, CFGF_NONE),
394 CFG_STR("prefix_type", "binary", CFGF_NONE),
395 CFG_STR("threshold_type", "percentage_avail", CFGF_NONE),
396 CFG_FLOAT("low_threshold", 0, CFGF_NONE),
397 CFG_CUSTOM_ALIGN_OPT,
398 CFG_CUSTOM_COLOR_OPTS,
399 CFG_CUSTOM_MIN_WIDTH_OPT,
402 cfg_opt_t volume_opts[] = {
403 CFG_STR("format", "♪: %volume", CFGF_NONE),
404 CFG_STR("format_muted", "♪: 0%%", CFGF_NONE),
405 CFG_STR("device", "default", CFGF_NONE),
406 CFG_STR("mixer", "Master", CFGF_NONE),
407 CFG_INT("mixer_idx", 0, CFGF_NONE),
408 CFG_CUSTOM_ALIGN_OPT,
409 CFG_CUSTOM_COLOR_OPTS,
410 CFG_CUSTOM_MIN_WIDTH_OPT,
414 CFG_STR_LIST("order", "{}", CFGF_NONE),
415 CFG_SEC("general", general_opts, CFGF_NONE),
416 CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI),
417 CFG_SEC("path_exists", path_exists_opts, CFGF_TITLE | CFGF_MULTI),
418 CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI),
419 CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI),
420 CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
421 CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
422 CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
423 CFG_SEC("volume", volume_opts, CFGF_TITLE | CFGF_MULTI),
424 CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
425 CFG_SEC("time", time_opts, CFGF_NONE),
426 CFG_SEC("tztime", tztime_opts, CFGF_TITLE | CFGF_MULTI),
427 CFG_SEC("ddate", ddate_opts, CFGF_NONE),
428 CFG_SEC("load", load_opts, CFGF_NONE),
429 CFG_SEC("cpu_usage", usage_opts, CFGF_NONE),
432 char *configfile = NULL;
433 int o, option_index = 0;
434 struct option long_options[] = {
435 {"config", required_argument, 0, 'c'},
436 {"help", no_argument, 0, 'h'},
437 {"version", no_argument, 0, 'v'},
440 struct sigaction action;
441 memset(&action, 0, sizeof(struct sigaction));
442 action.sa_handler = fatalsig;
444 /* Exit upon SIGPIPE because when we have nowhere to write to, gathering system
445 * information is pointless. Also exit explicitly on SIGTERM and SIGINT because
446 * only this will trigger a reset of the cursor in the terminal output-format.
448 sigaction(SIGPIPE, &action, NULL);
449 sigaction(SIGTERM, &action, NULL);
450 sigaction(SIGINT, &action, NULL);
452 memset(&action, 0, sizeof(struct sigaction));
453 action.sa_handler = sigusr1;
454 sigaction(SIGUSR1, &action, NULL);
456 if (setlocale(LC_ALL, "") == NULL)
457 die("Could not set locale. Please make sure all your LC_* / LANG settings are correct.");
459 while ((o = getopt_long(argc, argv, "c:hv", long_options, &option_index)) != -1)
462 else if ((char)o == 'h') {
463 printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n"
464 "Syntax: %s [-c <configfile>] [-h] [-v]\n",
467 } else if ((char)o == 'v') {
468 printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n");
472 if (configfile == NULL)
473 configfile = get_config_path();
475 cfg = cfg_init(opts, CFGF_NOCASE);
476 if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR)
479 if (cfg_size(cfg, "order") == 0)
480 die("Your 'order' array is empty. Please fix your config.\n");
482 cfg_general = cfg_getsec(cfg, "general");
483 if (cfg_general == NULL)
484 die("Could not get section \"general\"\n");
486 char *output_str = cfg_getstr(cfg_general, "output_format");
487 if (strcasecmp(output_str, "auto") == 0) {
488 fprintf(stderr, "i3status: trying to auto-detect output_format setting\n");
489 output_str = auto_detect_format();
492 fprintf(stderr, "i3status: falling back to \"none\"\n");
494 fprintf(stderr, "i3status: auto-detected \"%s\"\n", output_str);
498 if (strcasecmp(output_str, "dzen2") == 0)
499 output_format = O_DZEN2;
500 else if (strcasecmp(output_str, "xmobar") == 0)
501 output_format = O_XMOBAR;
502 else if (strcasecmp(output_str, "i3bar") == 0)
503 output_format = O_I3BAR;
504 else if (strcasecmp(output_str, "term") == 0)
505 output_format = O_TERM;
506 else if (strcasecmp(output_str, "none") == 0)
507 output_format = O_NONE;
509 die("Unknown output format: \"%s\"\n", output_str);
511 const char *separator = cfg_getstr(cfg_general, "separator");
513 // if no custom separator has been provided, use the default one
514 if (strcasecmp(separator, "default") == 0)
515 separator = get_default_separator();
517 if (!valid_color(cfg_getstr(cfg_general, "color_good")) || !valid_color(cfg_getstr(cfg_general, "color_degraded")) || !valid_color(cfg_getstr(cfg_general, "color_bad")) || !valid_color(cfg_getstr(cfg_general, "color_separator")))
518 die("Bad color format");
521 yajl_gen json_gen = yajl_gen_alloc(NULL);
523 yajl_gen json_gen = yajl_gen_alloc(NULL, NULL);
526 if (output_format == O_I3BAR) {
527 /* Initialize the i3bar protocol. See i3/docs/i3bar-protocol
529 printf("{\"version\":1}\n[\n");
531 yajl_gen_array_open(json_gen);
532 yajl_gen_clear(json_gen);
534 if (output_format == O_TERM) {
535 /* Save the cursor-position and hide the cursor */
536 printf("\033[s\033[?25l");
538 atexit(&reset_cursor);
541 if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
542 die("Could not create socket\n");
544 int interval = cfg_getint(cfg_general, "interval");
546 /* One memory page which each plugin can use to buffer output.
547 * Even though it’s unclean, we just assume that the user will not
548 * specify a format string which expands to something longer than 4096
549 * bytes — given that the output of i3status is used to display
550 * information on screen, more than 1024 characters for the full line
551 * (!), not individual plugins, seem very unlikely. */
554 void **per_instance = calloc(cfg_size(cfg, "order"), sizeof(*per_instance));
555 pthread_mutex_lock(&i3status_sleep_mutex);
558 if (exit_upon_signal) {
559 fprintf(stderr, "Exiting due to signal.\n");
563 gettimeofday(&tv, NULL);
564 if (output_format == O_I3BAR)
565 yajl_gen_array_open(json_gen);
566 else if (output_format == O_TERM)
567 /* Restore the cursor-position, clear line */
568 printf("\033[u\033[K");
569 for (j = 0; j < cfg_size(cfg, "order"); j++) {
570 cur_instance = per_instance + j;
572 print_separator(separator);
574 const char *current = cfg_getnstr(cfg, "order", j);
577 SEC_OPEN_MAP("ipv6");
578 print_ipv6_info(json_gen, buffer, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
582 CASE_SEC_TITLE("wireless") {
583 SEC_OPEN_MAP("wireless");
584 const char *interface = NULL;
585 if (strcasecmp(title, "_first_") == 0)
586 interface = first_eth_interface(NET_TYPE_WIRELESS);
587 if (interface == NULL)
589 print_wireless_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
593 CASE_SEC_TITLE("ethernet") {
594 SEC_OPEN_MAP("ethernet");
595 const char *interface = NULL;
596 if (strcasecmp(title, "_first_") == 0)
597 interface = first_eth_interface(NET_TYPE_ETHERNET);
598 if (interface == NULL)
600 print_eth_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
604 CASE_SEC_TITLE("battery") {
605 SEC_OPEN_MAP("battery");
606 print_battery_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"), cfg_getstr(sec, "status_chr"), cfg_getstr(sec, "status_bat"), cfg_getstr(sec, "status_full"), cfg_getint(sec, "low_threshold"), cfg_getstr(sec, "threshold_type"), cfg_getbool(sec, "last_full_capacity"), cfg_getbool(sec, "integer_battery_capacity"), cfg_getbool(sec, "hide_seconds"));
610 CASE_SEC_TITLE("run_watch") {
611 SEC_OPEN_MAP("run_watch");
612 print_run_watch(json_gen, buffer, title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"));
616 CASE_SEC_TITLE("path_exists") {
617 SEC_OPEN_MAP("path_exists");
618 print_path_exists(json_gen, buffer, title, cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"));
622 CASE_SEC_TITLE("disk") {
623 SEC_OPEN_MAP("disk_info");
624 print_disk_info(json_gen, buffer, title, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_not_mounted"), cfg_getstr(sec, "prefix_type"), cfg_getstr(sec, "threshold_type"), cfg_getfloat(sec, "low_threshold"));
629 SEC_OPEN_MAP("load");
630 print_load(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getfloat(sec, "max_threshold"));
635 SEC_OPEN_MAP("time");
636 print_time(json_gen, buffer, NULL, cfg_getstr(sec, "format"), NULL, tv.tv_sec);
640 CASE_SEC_TITLE("tztime") {
641 SEC_OPEN_MAP("tztime");
642 print_time(json_gen, buffer, title, cfg_getstr(sec, "format"), cfg_getstr(sec, "timezone"), tv.tv_sec);
647 SEC_OPEN_MAP("ddate");
648 print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), tv.tv_sec);
652 CASE_SEC_TITLE("volume") {
653 SEC_OPEN_MAP("volume");
654 print_volume(json_gen, buffer, cfg_getstr(sec, "format"),
655 cfg_getstr(sec, "format_muted"),
656 cfg_getstr(sec, "device"),
657 cfg_getstr(sec, "mixer"),
658 cfg_getint(sec, "mixer_idx"));
662 CASE_SEC_TITLE("cpu_temperature") {
663 SEC_OPEN_MAP("cpu_temperature");
664 print_cpu_temperature_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getint(sec, "max_threshold"));
668 CASE_SEC("cpu_usage") {
669 SEC_OPEN_MAP("cpu_usage");
670 print_cpu_usage(json_gen, buffer, cfg_getstr(sec, "format"));
674 if (output_format == O_I3BAR) {
675 yajl_gen_array_close(json_gen);
676 const unsigned char *buf;
682 yajl_gen_get_buf(json_gen, &buf, &len);
683 write(STDOUT_FILENO, buf, len);
684 yajl_gen_clear(json_gen);
690 /* To provide updates on every full second (as good as possible)
691 * we don’t use sleep(interval) but we sleep until the next second.
692 * We also align to 60 seconds modulo interval such
693 * that we start with :00 on every new minute. */
695 clock_gettime(CLOCK_REALTIME, &ts);
696 ts.tv_sec += interval - (ts.tv_sec % interval);
699 /* Sleep to absolute time 'ts', unless the condition
700 * 'i3status_sleep_cond' is signaled from another thread */
701 pthread_cond_timedwait(&i3status_sleep_cond, &i3status_sleep_mutex, &ts);