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) \
49 CFG_STR("color_degraded", degraded, CFGF_NONE), \
50 CFG_STR("color_bad", bad, CFGF_NONE)
52 #define CFG_CUSTOM_COLOR_OPTS CFG_COLOR_OPTS(NULL, NULL, NULL)
54 #define CFG_CUSTOM_MIN_WIDTH_OPT \
55 CFG_PTR_CB("min_width", NULL, CFGF_NONE, parse_min_width, free)
57 #define CFG_CUSTOM_SEPARATOR_OPT \
58 CFG_BOOL("separator", 0, CFGF_NODEFAULT)
60 #define CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT \
61 CFG_INT("separator_block_width", 0, CFGF_NODEFAULT)
63 /* socket file descriptor for general purposes */
66 static bool exit_upon_signal = false;
67 static bool run_once = false;
69 cfg_t *cfg, *cfg_general, *cfg_section;
73 pthread_t main_thread;
75 markup_format_t markup_format;
76 output_format_t output_format;
81 * Set the exit_upon_signal flag, because one cannot do anything in a safe
82 * manner in a signal handler (e.g. fprintf, which we really want to do for
83 * debugging purposes), see
84 * https://www.securecoding.cert.org/confluence/display/seccode/SIG30-C.+Call+only+asynchronous-safe+functions+within+signal+handlers
87 void fatalsig(int signum) {
88 exit_upon_signal = true;
92 * Do nothing upon SIGUSR1. Running this signal handler will nevertheless
93 * interrupt nanosleep() so that i3status immediately generates new output.
96 void sigusr1(int signum) {
100 * Checks if the given path exists by calling stat().
103 static bool path_exists(const char *path) {
105 return (stat(path, &buf) == 0);
108 static void *scalloc(size_t size) {
109 void *result = calloc(size, 1);
110 exit_if_null(result, "Error: out of memory (calloc(%zu))\n", size);
114 char *sstrdup(const char *str) {
118 char *result = strdup(str);
119 exit_if_null(result, "Error: out of memory (strdup())\n");
124 * Parses the "align" module option (to validate input).
126 static int parse_align(cfg_t *context, cfg_opt_t *option, const char *value, void *result) {
127 if (strcasecmp(value, "left") != 0 && strcasecmp(value, "right") != 0 && strcasecmp(value, "center") != 0)
128 die("Invalid alignment attribute found in section %s, line %d: \"%s\"\n"
129 "Valid attributes are: left, center, right\n",
130 context->name, context->line, value);
132 const char **cresult = result;
139 * Parses the "min_width" module option whose value can either be a string or an integer.
141 static int parse_min_width(cfg_t *context, cfg_opt_t *option, const char *value, void *result) {
143 long num = strtol(value, &end, 10);
146 die("Invalid min_width attribute found in section %s, line %d: %ld\n"
147 "Expected positive integer or string\n",
148 context->name, context->line, num);
149 else if (num == LONG_MIN || num == LONG_MAX || (end && *end != '\0'))
152 if (strlen(value) == 0)
153 die("Empty min_width attribute found in section %s, line %d\n"
154 "Expected positive integer or non-empty string\n",
155 context->name, context->line);
157 if (strcmp(value, "0") == 0)
158 die("Invalid min_width attribute found in section %s, line %d: \"%s\"\n"
159 "Expected positive integer or string\n",
160 context->name, context->line, value);
162 struct min_width *parsed = scalloc(sizeof(struct min_width));
165 /* num is preferred, but if it’s 0 (i.e. not valid), store and use
166 * the raw string value */
168 parsed->str = sstrdup(value);
170 struct min_width **cresult = result;
177 * Validates a color in "#RRGGBB" format
180 static int valid_color(const char *value) {
181 const int len = strlen(value);
183 if (output_format == O_LEMONBAR) {
184 /* lemonbar supports an optional alpha channel */
185 if (len != strlen("#rrggbb") && len != strlen("#aarrggbb")) {
189 if (len != strlen("#rrggbb")) {
195 for (int i = 1; i < len; ++i) {
196 if (value[i] >= '0' && value[i] <= '9')
198 if (value[i] >= 'a' && value[i] <= 'f')
200 if (value[i] >= 'A' && value[i] <= 'F')
208 * This function resolves ~ in pathnames.
209 * It may resolve wildcards in the first part of the path, but if no match
210 * or multiple matches are found, it just returns a copy of path as given.
213 static char *resolve_tilde(const char *path) {
214 static glob_t globbuf;
215 char *head, *tail, *result = NULL;
217 tail = strchr(path, '/');
218 head = strndup(path, tail ? (size_t)(tail - path) : strlen(path));
220 int res = glob(head, GLOB_TILDE, NULL, &globbuf);
222 /* no match, or many wildcard matches are bad */
223 if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
224 result = sstrdup(path);
226 die("glob() failed");
228 head = globbuf.gl_pathv[0];
229 result = scalloc(strlen(head) + (tail ? strlen(tail) : 0) + 1);
230 strncpy(result, head, strlen(head));
232 strncat(result, tail, strlen(tail));
239 static char *get_config_path(void) {
240 char *xdg_config_home, *xdg_config_dirs, *config_path;
242 /* 1: check for $XDG_CONFIG_HOME/i3status/config */
243 if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL)
244 xdg_config_home = "~/.config";
246 xdg_config_home = resolve_tilde(xdg_config_home);
247 if (asprintf(&config_path, "%s/i3status/config", xdg_config_home) == -1)
248 die("asprintf() failed");
249 free(xdg_config_home);
251 if (path_exists(config_path))
255 /* 2: check for $XDG_CONFIG_DIRS/i3status/config */
256 if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL)
257 xdg_config_dirs = "/etc/xdg";
259 /* 3: check the traditional path under the home directory */
260 config_path = resolve_tilde("~/.i3status.conf");
261 if (path_exists(config_path))
263 char *buf = strdup(xdg_config_dirs);
264 char *tok = strtok(buf, ":");
265 while (tok != NULL) {
266 tok = resolve_tilde(tok);
267 if (asprintf(&config_path, "%s/i3status/config", tok) == -1)
268 die("asprintf() failed");
270 if (path_exists(config_path)) {
275 tok = strtok(NULL, ":");
279 /* 4: check the traditional path under /etc */
280 config_path = SYSCONFDIR "/i3status.conf";
281 if (path_exists(config_path))
282 return sstrdup(config_path);
284 die("Unable to find the configuration file (looked at "
285 "~/.i3status.conf, $XDG_CONFIG_HOME/i3status/config, "
286 "/etc/i3status.conf and $XDG_CONFIG_DIRS/i3status/config)");
291 * Returns the default separator to use if no custom separator has been specified.
293 static char *get_default_separator() {
294 if (output_format == O_DZEN2)
295 return "^p(5;-2)^ro(2)^p()^p(5)";
296 if (output_format == O_I3BAR)
297 // anything besides the empty string indicates that the default separator should be used
302 int main(int argc, char *argv[]) {
305 cfg_opt_t general_opts[] = {
306 CFG_STR("output_format", "auto", CFGF_NONE),
307 CFG_BOOL("colors", 1, CFGF_NONE),
308 CFG_STR("separator", "default", CFGF_NONE),
309 CFG_STR("color_separator", "#333333", CFGF_NONE),
310 CFG_INT("interval", 1, CFGF_NONE),
311 CFG_COLOR_OPTS("#00FF00", "#FFFF00", "#FF0000"),
312 CFG_STR("markup", "none", CFGF_NONE),
315 cfg_opt_t run_watch_opts[] = {
316 CFG_STR("pidfile", NULL, CFGF_NONE),
317 CFG_STR("format", "%title: %status", CFGF_NONE),
318 CFG_STR("format_down", NULL, CFGF_NONE),
319 CFG_CUSTOM_ALIGN_OPT,
320 CFG_CUSTOM_COLOR_OPTS,
321 CFG_CUSTOM_MIN_WIDTH_OPT,
322 CFG_CUSTOM_SEPARATOR_OPT,
323 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
326 cfg_opt_t path_exists_opts[] = {
327 CFG_STR("path", NULL, CFGF_NONE),
328 CFG_STR("format", "%title: %status", CFGF_NONE),
329 CFG_STR("format_down", NULL, CFGF_NONE),
330 CFG_CUSTOM_ALIGN_OPT,
331 CFG_CUSTOM_COLOR_OPTS,
332 CFG_CUSTOM_MIN_WIDTH_OPT,
333 CFG_CUSTOM_SEPARATOR_OPT,
334 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
337 cfg_opt_t wireless_opts[] = {
338 CFG_STR("format_up", "W: (%quality at %essid, %bitrate) %ip", CFGF_NONE),
339 CFG_STR("format_down", "W: down", CFGF_NONE),
340 CFG_STR("format_quality", "%3d%s", CFGF_NONE),
341 CFG_CUSTOM_ALIGN_OPT,
342 CFG_CUSTOM_COLOR_OPTS,
343 CFG_CUSTOM_MIN_WIDTH_OPT,
344 CFG_CUSTOM_SEPARATOR_OPT,
345 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
348 cfg_opt_t ethernet_opts[] = {
349 CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
350 CFG_STR("format_down", "E: down", CFGF_NONE),
351 CFG_CUSTOM_ALIGN_OPT,
352 CFG_CUSTOM_COLOR_OPTS,
353 CFG_CUSTOM_MIN_WIDTH_OPT,
354 CFG_CUSTOM_SEPARATOR_OPT,
355 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
358 cfg_opt_t ipv6_opts[] = {
359 CFG_STR("format_up", "%ip", CFGF_NONE),
360 CFG_STR("format_down", "no IPv6", CFGF_NONE),
361 CFG_CUSTOM_ALIGN_OPT,
362 CFG_CUSTOM_COLOR_OPTS,
363 CFG_CUSTOM_MIN_WIDTH_OPT,
364 CFG_CUSTOM_SEPARATOR_OPT,
365 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
368 cfg_opt_t battery_opts[] = {
369 CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
370 CFG_STR("format_down", "No battery", CFGF_NONE),
371 CFG_STR("status_chr", "CHR", CFGF_NONE),
372 CFG_STR("status_bat", "BAT", CFGF_NONE),
373 CFG_STR("status_unk", "UNK", CFGF_NONE),
374 CFG_STR("status_full", "FULL", CFGF_NONE),
375 CFG_STR("path", "/sys/class/power_supply/BAT%d/uevent", CFGF_NONE),
376 CFG_INT("low_threshold", 30, CFGF_NONE),
377 CFG_STR("threshold_type", "time", CFGF_NONE),
378 CFG_BOOL("last_full_capacity", false, CFGF_NONE),
379 CFG_BOOL("integer_battery_capacity", false, CFGF_NONE),
380 CFG_BOOL("hide_seconds", true, CFGF_NONE),
381 CFG_CUSTOM_ALIGN_OPT,
382 CFG_CUSTOM_COLOR_OPTS,
383 CFG_CUSTOM_MIN_WIDTH_OPT,
384 CFG_CUSTOM_SEPARATOR_OPT,
385 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
388 cfg_opt_t time_opts[] = {
389 CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE),
390 CFG_CUSTOM_ALIGN_OPT,
391 CFG_CUSTOM_MIN_WIDTH_OPT,
392 CFG_CUSTOM_SEPARATOR_OPT,
393 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
396 cfg_opt_t tztime_opts[] = {
397 CFG_STR("format", "%Y-%m-%d %H:%M:%S %Z", CFGF_NONE),
398 CFG_STR("timezone", "", CFGF_NONE),
399 CFG_STR("locale", "", CFGF_NONE),
400 CFG_STR("format_time", NULL, CFGF_NONE),
401 CFG_CUSTOM_ALIGN_OPT,
402 CFG_CUSTOM_MIN_WIDTH_OPT,
403 CFG_CUSTOM_SEPARATOR_OPT,
404 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
407 cfg_opt_t ddate_opts[] = {
408 CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE),
409 CFG_CUSTOM_ALIGN_OPT,
410 CFG_CUSTOM_MIN_WIDTH_OPT,
411 CFG_CUSTOM_SEPARATOR_OPT,
412 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
415 cfg_opt_t load_opts[] = {
416 CFG_STR("format", "%1min %5min %15min", CFGF_NONE),
417 CFG_STR("format_above_threshold", NULL, CFGF_NONE),
418 CFG_FLOAT("max_threshold", 5, CFGF_NONE),
419 CFG_CUSTOM_ALIGN_OPT,
420 CFG_CUSTOM_COLOR_OPTS,
421 CFG_CUSTOM_MIN_WIDTH_OPT,
422 CFG_CUSTOM_SEPARATOR_OPT,
423 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
426 cfg_opt_t memory_opts[] = {
427 CFG_STR("format", "%used %free %available", CFGF_NONE),
428 CFG_STR("format_degraded", NULL, CFGF_NONE),
429 CFG_STR("threshold_degraded", NULL, CFGF_NONE),
430 CFG_STR("threshold_critical", NULL, CFGF_NONE),
431 CFG_STR("memory_used_method", "classical", CFGF_NONE),
432 CFG_CUSTOM_ALIGN_OPT,
433 CFG_CUSTOM_COLOR_OPTS,
434 CFG_CUSTOM_MIN_WIDTH_OPT,
435 CFG_CUSTOM_SEPARATOR_OPT,
436 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
439 cfg_opt_t usage_opts[] = {
440 CFG_STR("format", "%usage", CFGF_NONE),
441 CFG_STR("format_above_threshold", NULL, CFGF_NONE),
442 CFG_STR("format_above_degraded_threshold", NULL, CFGF_NONE),
443 CFG_STR("path", "/proc/stat", CFGF_NONE),
444 CFG_FLOAT("max_threshold", 95, CFGF_NONE),
445 CFG_FLOAT("degraded_threshold", 90, CFGF_NONE),
446 CFG_CUSTOM_ALIGN_OPT,
447 CFG_CUSTOM_COLOR_OPTS,
448 CFG_CUSTOM_MIN_WIDTH_OPT,
449 CFG_CUSTOM_SEPARATOR_OPT,
450 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
453 cfg_opt_t temp_opts[] = {
454 CFG_STR("format", "%degrees C", CFGF_NONE),
455 CFG_STR("format_above_threshold", NULL, CFGF_NONE),
456 CFG_STR("path", NULL, CFGF_NONE),
457 CFG_INT("max_threshold", 75, CFGF_NONE),
458 CFG_CUSTOM_ALIGN_OPT,
459 CFG_CUSTOM_COLOR_OPTS,
460 CFG_CUSTOM_MIN_WIDTH_OPT,
461 CFG_CUSTOM_SEPARATOR_OPT,
462 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
465 cfg_opt_t disk_opts[] = {
466 CFG_STR("format", "%free", CFGF_NONE),
467 CFG_STR("format_below_threshold", NULL, CFGF_NONE),
468 CFG_STR("format_not_mounted", NULL, CFGF_NONE),
469 CFG_STR("prefix_type", "binary", CFGF_NONE),
470 CFG_STR("threshold_type", "percentage_avail", CFGF_NONE),
471 CFG_FLOAT("low_threshold", 0, CFGF_NONE),
472 CFG_CUSTOM_ALIGN_OPT,
473 CFG_CUSTOM_COLOR_OPTS,
474 CFG_CUSTOM_MIN_WIDTH_OPT,
475 CFG_CUSTOM_SEPARATOR_OPT,
476 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
479 cfg_opt_t volume_opts[] = {
480 CFG_STR("format", "♪: %volume", CFGF_NONE),
481 CFG_STR("format_muted", "♪: 0%%", CFGF_NONE),
482 CFG_STR("device", "default", CFGF_NONE),
483 CFG_STR("mixer", "Master", CFGF_NONE),
484 CFG_INT("mixer_idx", 0, CFGF_NONE),
485 CFG_CUSTOM_ALIGN_OPT,
486 CFG_CUSTOM_COLOR_OPTS,
487 CFG_CUSTOM_MIN_WIDTH_OPT,
488 CFG_CUSTOM_SEPARATOR_OPT,
489 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
493 CFG_STR_LIST("order", "{}", CFGF_NONE),
494 CFG_SEC("general", general_opts, CFGF_NONE),
495 CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI),
496 CFG_SEC("path_exists", path_exists_opts, CFGF_TITLE | CFGF_MULTI),
497 CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI),
498 CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI),
499 CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
500 CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
501 CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
502 CFG_SEC("volume", volume_opts, CFGF_TITLE | CFGF_MULTI),
503 CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
504 CFG_SEC("time", time_opts, CFGF_NONE),
505 CFG_SEC("tztime", tztime_opts, CFGF_TITLE | CFGF_MULTI),
506 CFG_SEC("ddate", ddate_opts, CFGF_NONE),
507 CFG_SEC("load", load_opts, CFGF_NONE),
508 CFG_SEC("memory", memory_opts, CFGF_NONE),
509 CFG_SEC("cpu_usage", usage_opts, CFGF_NONE),
512 char *configfile = NULL;
513 int opt, option_index = 0;
514 struct option long_options[] = {
515 {"config", required_argument, 0, 'c'},
516 {"help", no_argument, 0, 'h'},
517 {"version", no_argument, 0, 'v'},
518 {"run-once", no_argument, 0, 0},
521 struct sigaction action;
522 memset(&action, 0, sizeof(struct sigaction));
523 action.sa_handler = fatalsig;
524 main_thread = pthread_self();
526 /* Exit upon SIGPIPE because when we have nowhere to write to, gathering system
527 * information is pointless. Also exit explicitly on SIGTERM and SIGINT because
528 * only this will trigger a reset of the cursor in the terminal output-format.
530 sigaction(SIGPIPE, &action, NULL);
531 sigaction(SIGTERM, &action, NULL);
532 sigaction(SIGINT, &action, NULL);
534 memset(&action, 0, sizeof(struct sigaction));
535 action.sa_handler = sigusr1;
536 sigaction(SIGUSR1, &action, NULL);
538 if (setlocale(LC_ALL, "") == NULL)
539 die("Could not set locale. Please make sure all your LC_* / LANG settings are correct.");
541 while ((opt = getopt_long(argc, argv, "c:hv", long_options, &option_index)) != -1) {
547 printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n"
548 "Syntax: %s [-c <configfile>] [-h] [-v]\n",
553 printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n");
557 if (strcmp(long_options[option_index].name, "run-once") == 0) {
564 if (configfile == NULL)
565 configfile = get_config_path();
567 cfg = cfg_init(opts, CFGF_NOCASE);
568 if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR)
571 if (cfg_size(cfg, "order") == 0)
572 die("Your 'order' array is empty. Please fix your config.\n");
574 cfg_general = cfg_getsec(cfg, "general");
575 if (cfg_general == NULL)
576 die("Could not get section \"general\"\n");
578 char *output_str = cfg_getstr(cfg_general, "output_format");
579 if (strcasecmp(output_str, "auto") == 0) {
580 fprintf(stderr, "i3status: trying to auto-detect output_format setting\n");
581 output_str = auto_detect_format();
584 fprintf(stderr, "i3status: falling back to \"none\"\n");
586 fprintf(stderr, "i3status: auto-detected \"%s\"\n", output_str);
590 if (strcasecmp(output_str, "dzen2") == 0)
591 output_format = O_DZEN2;
592 else if (strcasecmp(output_str, "xmobar") == 0)
593 output_format = O_XMOBAR;
594 else if (strcasecmp(output_str, "i3bar") == 0)
595 output_format = O_I3BAR;
596 else if (strcasecmp(output_str, "lemonbar") == 0)
597 output_format = O_LEMONBAR;
598 else if (strcasecmp(output_str, "term") == 0)
599 output_format = O_TERM;
600 else if (strcasecmp(output_str, "none") == 0)
601 output_format = O_NONE;
603 die("Unknown output format: \"%s\"\n", output_str);
605 const char *separator = cfg_getstr(cfg_general, "separator");
607 /* lemonbar needs % to be escaped with another % */
608 pct_mark = (output_format == O_LEMONBAR) ? "%%" : "%";
610 // if no custom separator has been provided, use the default one
611 if (strcasecmp(separator, "default") == 0)
612 separator = get_default_separator();
614 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")))
615 die("Bad color format");
617 char *markup_str = cfg_getstr(cfg_general, "markup");
618 if (strcasecmp(markup_str, "pango") == 0)
619 markup_format = M_PANGO;
620 else if (strcasecmp(markup_str, "none") == 0)
621 markup_format = M_NONE;
623 die("Unknown markup format: \"%s\"\n", markup_str);
626 yajl_gen json_gen = yajl_gen_alloc(NULL);
628 yajl_gen json_gen = yajl_gen_alloc(NULL, NULL);
631 if (output_format == O_I3BAR) {
632 /* Initialize the i3bar protocol. See i3/docs/i3bar-protocol
634 printf("{\"version\":1}\n[\n");
636 yajl_gen_array_open(json_gen);
637 yajl_gen_clear(json_gen);
639 if (output_format == O_TERM) {
640 /* Save the cursor-position and hide the cursor */
641 printf("\033[s\033[?25l");
643 atexit(&reset_cursor);
646 if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
647 die("Could not create socket\n");
649 int interval = cfg_getint(cfg_general, "interval");
651 die("Invalid interval attribute found in section %s, line %d: %d\n"
652 "Expected positive integer\n",
653 cfg_general->name, cfg_general->line, interval);
656 /* One memory page which each plugin can use to buffer output.
657 * Even though it’s unclean, we just assume that the user will not
658 * specify a format string which expands to something longer than 4096
659 * bytes — given that the output of i3status is used to display
660 * information on screen, more than 1024 characters for the full line
661 * (!), not individual plugins, seem very unlikely. */
664 void **per_instance = calloc(cfg_size(cfg, "order"), sizeof(*per_instance));
667 if (exit_upon_signal) {
668 fprintf(stderr, "Exiting due to signal.\n");
672 gettimeofday(&tv, NULL);
673 if (output_format == O_I3BAR)
674 yajl_gen_array_open(json_gen);
675 else if (output_format == O_TERM)
676 /* Restore the cursor-position, clear line */
677 printf("\033[u\033[K");
678 for (j = 0; j < cfg_size(cfg, "order"); j++) {
679 cur_instance = per_instance + j;
681 print_separator(separator);
683 const char *current = cfg_getnstr(cfg, "order", j);
686 SEC_OPEN_MAP("ipv6");
687 print_ipv6_info(json_gen, buffer, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
691 CASE_SEC_TITLE("wireless") {
692 SEC_OPEN_MAP("wireless");
693 const char *interface = NULL;
694 if (strcasecmp(title, "_first_") == 0)
695 interface = first_eth_interface(NET_TYPE_WIRELESS);
696 if (interface == NULL)
698 print_wireless_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"), cfg_getstr(sec, "format_quality"));
702 CASE_SEC_TITLE("ethernet") {
703 SEC_OPEN_MAP("ethernet");
704 const char *interface = NULL;
705 if (strcasecmp(title, "_first_") == 0)
706 interface = first_eth_interface(NET_TYPE_ETHERNET);
707 if (interface == NULL)
709 print_eth_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
713 CASE_SEC_TITLE("battery") {
714 SEC_OPEN_MAP("battery");
715 print_battery_info(json_gen, buffer, (strcasecmp(title, "all") == 0 ? -1 : 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_unk"), 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"));
719 CASE_SEC_TITLE("run_watch") {
720 SEC_OPEN_MAP("run_watch");
721 print_run_watch(json_gen, buffer, title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"));
725 CASE_SEC_TITLE("path_exists") {
726 SEC_OPEN_MAP("path_exists");
727 print_path_exists(json_gen, buffer, title, cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"));
731 CASE_SEC_TITLE("disk") {
732 SEC_OPEN_MAP("disk_info");
733 print_disk_info(json_gen, buffer, title, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_below_threshold"), cfg_getstr(sec, "format_not_mounted"), cfg_getstr(sec, "prefix_type"), cfg_getstr(sec, "threshold_type"), cfg_getfloat(sec, "low_threshold"));
738 SEC_OPEN_MAP("load");
739 print_load(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_above_threshold"), cfg_getfloat(sec, "max_threshold"));
744 SEC_OPEN_MAP("memory");
745 print_memory(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_degraded"), cfg_getstr(sec, "threshold_degraded"), cfg_getstr(sec, "threshold_critical"), cfg_getstr(sec, "memory_used_method"));
750 SEC_OPEN_MAP("time");
751 print_time(json_gen, buffer, NULL, cfg_getstr(sec, "format"), NULL, NULL, NULL, tv.tv_sec);
755 CASE_SEC_TITLE("tztime") {
756 SEC_OPEN_MAP("tztime");
757 print_time(json_gen, buffer, title, cfg_getstr(sec, "format"), cfg_getstr(sec, "timezone"), cfg_getstr(sec, "locale"), cfg_getstr(sec, "format_time"), tv.tv_sec);
762 SEC_OPEN_MAP("ddate");
763 print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), tv.tv_sec);
767 CASE_SEC_TITLE("volume") {
768 SEC_OPEN_MAP("volume");
769 print_volume(json_gen, buffer, cfg_getstr(sec, "format"),
770 cfg_getstr(sec, "format_muted"),
771 cfg_getstr(sec, "device"),
772 cfg_getstr(sec, "mixer"),
773 cfg_getint(sec, "mixer_idx"));
777 CASE_SEC_TITLE("cpu_temperature") {
778 SEC_OPEN_MAP("cpu_temperature");
779 print_cpu_temperature_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_above_threshold"), cfg_getint(sec, "max_threshold"));
783 CASE_SEC("cpu_usage") {
784 SEC_OPEN_MAP("cpu_usage");
785 print_cpu_usage(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_above_threshold"), cfg_getstr(sec, "format_above_degraded_threshold"), cfg_getstr(sec, "path"), cfg_getfloat(sec, "max_threshold"), cfg_getfloat(sec, "degraded_threshold"));
789 if (output_format == O_I3BAR) {
790 yajl_gen_array_close(json_gen);
791 const unsigned char *buf;
797 yajl_gen_get_buf(json_gen, &buf, &len);
798 write(STDOUT_FILENO, buf, len);
799 yajl_gen_clear(json_gen);
809 /* To provide updates on every full second (as good as possible)
810 * we don’t use sleep(interval) but we sleep until the next
811 * second (with microsecond precision) plus (interval-1)
812 * seconds. We also align to 60 seconds modulo interval such
813 * that we start with :00 on every new minute. */
814 struct timeval current_timeval;
815 gettimeofday(¤t_timeval, NULL);
816 struct timespec ts = {interval - 1 - (current_timeval.tv_sec % interval), (10e5 - current_timeval.tv_usec) * 1000};
817 nanosleep(&ts, NULL);