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 strcpy(result, head);
232 strcat(result, tail);
240 static char *get_config_path(void) {
241 char *xdg_config_home, *xdg_config_dirs, *config_path;
243 /* 1: check for $XDG_CONFIG_HOME/i3status/config */
244 if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL)
245 xdg_config_home = "~/.config";
247 xdg_config_home = resolve_tilde(xdg_config_home);
248 if (asprintf(&config_path, "%s/i3status/config", xdg_config_home) == -1)
249 die("asprintf() failed");
250 free(xdg_config_home);
252 if (path_exists(config_path))
256 /* 2: check for $XDG_CONFIG_DIRS/i3status/config */
257 if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL)
258 xdg_config_dirs = "/etc/xdg";
260 /* 3: check the traditional path under the home directory */
261 config_path = resolve_tilde("~/.i3status.conf");
262 if (path_exists(config_path))
264 char *buf = strdup(xdg_config_dirs);
265 char *tok = strtok(buf, ":");
266 while (tok != NULL) {
267 tok = resolve_tilde(tok);
268 if (asprintf(&config_path, "%s/i3status/config", tok) == -1)
269 die("asprintf() failed");
271 if (path_exists(config_path)) {
276 tok = strtok(NULL, ":");
280 /* 4: check the traditional path under /etc */
281 config_path = SYSCONFDIR "/i3status.conf";
282 if (path_exists(config_path))
283 return sstrdup(config_path);
285 die("Unable to find the configuration file (looked at "
286 "~/.i3status.conf, $XDG_CONFIG_HOME/i3status/config, "
287 "/etc/i3status.conf and $XDG_CONFIG_DIRS/i3status/config)");
292 * Returns the default separator to use if no custom separator has been specified.
294 static char *get_default_separator() {
295 if (output_format == O_DZEN2)
296 return "^p(5;-2)^ro(2)^p()^p(5)";
297 if (output_format == O_I3BAR)
298 // anything besides the empty string indicates that the default separator should be used
303 int main(int argc, char *argv[]) {
306 cfg_opt_t general_opts[] = {
307 CFG_STR("output_format", "auto", CFGF_NONE),
308 CFG_BOOL("colors", 1, CFGF_NONE),
309 CFG_STR("separator", "default", CFGF_NONE),
310 CFG_STR("color_separator", "#333333", CFGF_NONE),
311 CFG_INT("interval", 1, CFGF_NONE),
312 CFG_COLOR_OPTS("#00FF00", "#FFFF00", "#FF0000"),
313 CFG_STR("markup", "none", CFGF_NONE),
316 cfg_opt_t run_watch_opts[] = {
317 CFG_STR("pidfile", NULL, CFGF_NONE),
318 CFG_STR("format", "%title: %status", CFGF_NONE),
319 CFG_STR("format_down", NULL, CFGF_NONE),
320 CFG_CUSTOM_ALIGN_OPT,
321 CFG_CUSTOM_COLOR_OPTS,
322 CFG_CUSTOM_MIN_WIDTH_OPT,
323 CFG_CUSTOM_SEPARATOR_OPT,
324 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
327 cfg_opt_t path_exists_opts[] = {
328 CFG_STR("path", NULL, CFGF_NONE),
329 CFG_STR("format", "%title: %status", CFGF_NONE),
330 CFG_STR("format_down", NULL, CFGF_NONE),
331 CFG_CUSTOM_ALIGN_OPT,
332 CFG_CUSTOM_COLOR_OPTS,
333 CFG_CUSTOM_MIN_WIDTH_OPT,
334 CFG_CUSTOM_SEPARATOR_OPT,
335 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
338 cfg_opt_t wireless_opts[] = {
339 CFG_STR("format_up", "W: (%quality at %essid, %bitrate) %ip", CFGF_NONE),
340 CFG_STR("format_down", "W: down", CFGF_NONE),
341 CFG_STR("format_quality", "%3d%s", CFGF_NONE),
342 CFG_CUSTOM_ALIGN_OPT,
343 CFG_CUSTOM_COLOR_OPTS,
344 CFG_CUSTOM_MIN_WIDTH_OPT,
345 CFG_CUSTOM_SEPARATOR_OPT,
346 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
349 cfg_opt_t ethernet_opts[] = {
350 CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
351 CFG_STR("format_down", "E: down", CFGF_NONE),
352 CFG_CUSTOM_ALIGN_OPT,
353 CFG_CUSTOM_COLOR_OPTS,
354 CFG_CUSTOM_MIN_WIDTH_OPT,
355 CFG_CUSTOM_SEPARATOR_OPT,
356 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
359 cfg_opt_t ipv6_opts[] = {
360 CFG_STR("format_up", "%ip", CFGF_NONE),
361 CFG_STR("format_down", "no IPv6", CFGF_NONE),
362 CFG_CUSTOM_ALIGN_OPT,
363 CFG_CUSTOM_COLOR_OPTS,
364 CFG_CUSTOM_MIN_WIDTH_OPT,
365 CFG_CUSTOM_SEPARATOR_OPT,
366 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
369 cfg_opt_t battery_opts[] = {
370 CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
371 CFG_STR("format_down", "No battery", CFGF_NONE),
372 CFG_STR("status_chr", "CHR", CFGF_NONE),
373 CFG_STR("status_bat", "BAT", CFGF_NONE),
374 CFG_STR("status_unk", "UNK", CFGF_NONE),
375 CFG_STR("status_full", "FULL", CFGF_NONE),
376 CFG_STR("path", "/sys/class/power_supply/BAT%d/uevent", CFGF_NONE),
377 CFG_INT("low_threshold", 30, CFGF_NONE),
378 CFG_STR("threshold_type", "time", CFGF_NONE),
379 CFG_BOOL("last_full_capacity", false, CFGF_NONE),
380 CFG_BOOL("integer_battery_capacity", false, CFGF_NONE),
381 CFG_BOOL("hide_seconds", true, CFGF_NONE),
382 CFG_CUSTOM_ALIGN_OPT,
383 CFG_CUSTOM_COLOR_OPTS,
384 CFG_CUSTOM_MIN_WIDTH_OPT,
385 CFG_CUSTOM_SEPARATOR_OPT,
386 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
389 cfg_opt_t time_opts[] = {
390 CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE),
391 CFG_CUSTOM_ALIGN_OPT,
392 CFG_CUSTOM_MIN_WIDTH_OPT,
393 CFG_CUSTOM_SEPARATOR_OPT,
394 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
397 cfg_opt_t tztime_opts[] = {
398 CFG_STR("format", "%Y-%m-%d %H:%M:%S %Z", CFGF_NONE),
399 CFG_STR("timezone", "", CFGF_NONE),
400 CFG_STR("locale", "", CFGF_NONE),
401 CFG_STR("format_time", NULL, CFGF_NONE),
402 CFG_CUSTOM_ALIGN_OPT,
403 CFG_CUSTOM_MIN_WIDTH_OPT,
404 CFG_CUSTOM_SEPARATOR_OPT,
405 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
408 cfg_opt_t ddate_opts[] = {
409 CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE),
410 CFG_CUSTOM_ALIGN_OPT,
411 CFG_CUSTOM_MIN_WIDTH_OPT,
412 CFG_CUSTOM_SEPARATOR_OPT,
413 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
416 cfg_opt_t load_opts[] = {
417 CFG_STR("format", "%1min %5min %15min", CFGF_NONE),
418 CFG_STR("format_above_threshold", NULL, CFGF_NONE),
419 CFG_FLOAT("max_threshold", 5, CFGF_NONE),
420 CFG_CUSTOM_ALIGN_OPT,
421 CFG_CUSTOM_COLOR_OPTS,
422 CFG_CUSTOM_MIN_WIDTH_OPT,
423 CFG_CUSTOM_SEPARATOR_OPT,
424 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
427 cfg_opt_t memory_opts[] = {
428 CFG_STR("format", "%used %free %available", CFGF_NONE),
429 CFG_STR("format_degraded", NULL, CFGF_NONE),
430 CFG_STR("threshold_degraded", NULL, CFGF_NONE),
431 CFG_STR("threshold_critical", NULL, CFGF_NONE),
432 CFG_STR("memory_used_method", "classical", CFGF_NONE),
433 CFG_CUSTOM_ALIGN_OPT,
434 CFG_CUSTOM_COLOR_OPTS,
435 CFG_CUSTOM_MIN_WIDTH_OPT,
436 CFG_CUSTOM_SEPARATOR_OPT,
437 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
440 cfg_opt_t usage_opts[] = {
441 CFG_STR("format", "%usage", CFGF_NONE),
442 CFG_STR("format_above_threshold", NULL, CFGF_NONE),
443 CFG_STR("format_above_degraded_threshold", NULL, CFGF_NONE),
444 CFG_STR("path", "/proc/stat", CFGF_NONE),
445 CFG_FLOAT("max_threshold", 95, CFGF_NONE),
446 CFG_FLOAT("degraded_threshold", 90, CFGF_NONE),
447 CFG_CUSTOM_ALIGN_OPT,
448 CFG_CUSTOM_COLOR_OPTS,
449 CFG_CUSTOM_MIN_WIDTH_OPT,
450 CFG_CUSTOM_SEPARATOR_OPT,
451 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
454 cfg_opt_t temp_opts[] = {
455 CFG_STR("format", "%degrees C", CFGF_NONE),
456 CFG_STR("format_above_threshold", NULL, CFGF_NONE),
457 CFG_STR("path", NULL, CFGF_NONE),
458 CFG_INT("max_threshold", 75, CFGF_NONE),
459 CFG_CUSTOM_ALIGN_OPT,
460 CFG_CUSTOM_COLOR_OPTS,
461 CFG_CUSTOM_MIN_WIDTH_OPT,
462 CFG_CUSTOM_SEPARATOR_OPT,
463 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
466 cfg_opt_t disk_opts[] = {
467 CFG_STR("format", "%free", CFGF_NONE),
468 CFG_STR("format_below_threshold", NULL, CFGF_NONE),
469 CFG_STR("format_not_mounted", NULL, CFGF_NONE),
470 CFG_STR("prefix_type", "binary", CFGF_NONE),
471 CFG_STR("threshold_type", "percentage_avail", CFGF_NONE),
472 CFG_FLOAT("low_threshold", 0, CFGF_NONE),
473 CFG_CUSTOM_ALIGN_OPT,
474 CFG_CUSTOM_COLOR_OPTS,
475 CFG_CUSTOM_MIN_WIDTH_OPT,
476 CFG_CUSTOM_SEPARATOR_OPT,
477 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
480 cfg_opt_t volume_opts[] = {
481 CFG_STR("format", "♪: %volume", CFGF_NONE),
482 CFG_STR("format_muted", "♪: 0%%", CFGF_NONE),
483 CFG_STR("device", "default", CFGF_NONE),
484 CFG_STR("mixer", "Master", CFGF_NONE),
485 CFG_INT("mixer_idx", 0, CFGF_NONE),
486 CFG_CUSTOM_ALIGN_OPT,
487 CFG_CUSTOM_COLOR_OPTS,
488 CFG_CUSTOM_MIN_WIDTH_OPT,
489 CFG_CUSTOM_SEPARATOR_OPT,
490 CFG_CUSTOM_SEP_BLOCK_WIDTH_OPT,
494 CFG_STR_LIST("order", "{}", CFGF_NONE),
495 CFG_SEC("general", general_opts, CFGF_NONE),
496 CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI),
497 CFG_SEC("path_exists", path_exists_opts, CFGF_TITLE | CFGF_MULTI),
498 CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI),
499 CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI),
500 CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
501 CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
502 CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
503 CFG_SEC("volume", volume_opts, CFGF_TITLE | CFGF_MULTI),
504 CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
505 CFG_SEC("time", time_opts, CFGF_NONE),
506 CFG_SEC("tztime", tztime_opts, CFGF_TITLE | CFGF_MULTI),
507 CFG_SEC("ddate", ddate_opts, CFGF_NONE),
508 CFG_SEC("load", load_opts, CFGF_NONE),
509 CFG_SEC("memory", memory_opts, CFGF_NONE),
510 CFG_SEC("cpu_usage", usage_opts, CFGF_NONE),
513 char *configfile = NULL;
514 int opt, option_index = 0;
515 struct option long_options[] = {
516 {"config", required_argument, 0, 'c'},
517 {"help", no_argument, 0, 'h'},
518 {"version", no_argument, 0, 'v'},
519 {"run-once", no_argument, 0, 0},
522 struct sigaction action;
523 memset(&action, 0, sizeof(struct sigaction));
524 action.sa_handler = fatalsig;
525 main_thread = pthread_self();
527 /* Exit upon SIGPIPE because when we have nowhere to write to, gathering system
528 * information is pointless. Also exit explicitly on SIGTERM and SIGINT because
529 * only this will trigger a reset of the cursor in the terminal output-format.
531 sigaction(SIGPIPE, &action, NULL);
532 sigaction(SIGTERM, &action, NULL);
533 sigaction(SIGINT, &action, NULL);
535 memset(&action, 0, sizeof(struct sigaction));
536 action.sa_handler = sigusr1;
537 sigaction(SIGUSR1, &action, NULL);
539 if (setlocale(LC_ALL, "") == NULL)
540 die("Could not set locale. Please make sure all your LC_* / LANG settings are correct.");
542 while ((opt = getopt_long(argc, argv, "c:hv", long_options, &option_index)) != -1) {
548 printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n"
549 "Syntax: %s [-c <configfile>] [-h] [-v]\n",
554 printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n");
558 if (strcmp(long_options[option_index].name, "run-once") == 0) {
565 if (configfile == NULL)
566 configfile = get_config_path();
568 cfg = cfg_init(opts, CFGF_NOCASE);
569 if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR)
572 if (cfg_size(cfg, "order") == 0)
573 die("Your 'order' array is empty. Please fix your config.\n");
575 cfg_general = cfg_getsec(cfg, "general");
576 if (cfg_general == NULL)
577 die("Could not get section \"general\"\n");
579 char *output_str = cfg_getstr(cfg_general, "output_format");
580 if (strcasecmp(output_str, "auto") == 0) {
581 fprintf(stderr, "i3status: trying to auto-detect output_format setting\n");
582 output_str = auto_detect_format();
585 fprintf(stderr, "i3status: falling back to \"none\"\n");
587 fprintf(stderr, "i3status: auto-detected \"%s\"\n", output_str);
591 if (strcasecmp(output_str, "dzen2") == 0)
592 output_format = O_DZEN2;
593 else if (strcasecmp(output_str, "xmobar") == 0)
594 output_format = O_XMOBAR;
595 else if (strcasecmp(output_str, "i3bar") == 0)
596 output_format = O_I3BAR;
597 else if (strcasecmp(output_str, "lemonbar") == 0)
598 output_format = O_LEMONBAR;
599 else if (strcasecmp(output_str, "term") == 0)
600 output_format = O_TERM;
601 else if (strcasecmp(output_str, "none") == 0)
602 output_format = O_NONE;
604 die("Unknown output format: \"%s\"\n", output_str);
606 const char *separator = cfg_getstr(cfg_general, "separator");
608 /* lemonbar needs % to be escaped with another % */
609 pct_mark = (output_format == O_LEMONBAR) ? "%%" : "%";
611 // if no custom separator has been provided, use the default one
612 if (strcasecmp(separator, "default") == 0)
613 separator = get_default_separator();
615 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")))
616 die("Bad color format");
618 char *markup_str = cfg_getstr(cfg_general, "markup");
619 if (strcasecmp(markup_str, "pango") == 0)
620 markup_format = M_PANGO;
621 else if (strcasecmp(markup_str, "none") == 0)
622 markup_format = M_NONE;
624 die("Unknown markup format: \"%s\"\n", markup_str);
627 yajl_gen json_gen = yajl_gen_alloc(NULL);
629 yajl_gen json_gen = yajl_gen_alloc(NULL, NULL);
632 if (output_format == O_I3BAR) {
633 /* Initialize the i3bar protocol. See i3/docs/i3bar-protocol
635 printf("{\"version\":1}\n[\n");
637 yajl_gen_array_open(json_gen);
638 yajl_gen_clear(json_gen);
640 if (output_format == O_TERM) {
641 /* Save the cursor-position and hide the cursor */
642 printf("\033[s\033[?25l");
644 atexit(&reset_cursor);
647 if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
648 die("Could not create socket\n");
650 int interval = cfg_getint(cfg_general, "interval");
652 die("Invalid interval attribute found in section %s, line %d: %d\n"
653 "Expected positive integer\n",
654 cfg_general->name, cfg_general->line, interval);
657 /* One memory page which each plugin can use to buffer output.
658 * Even though it’s unclean, we just assume that the user will not
659 * specify a format string which expands to something longer than 4096
660 * bytes — given that the output of i3status is used to display
661 * information on screen, more than 1024 characters for the full line
662 * (!), not individual plugins, seem very unlikely. */
665 void **per_instance = calloc(cfg_size(cfg, "order"), sizeof(*per_instance));
668 if (exit_upon_signal) {
669 fprintf(stderr, "Exiting due to signal.\n");
673 gettimeofday(&tv, NULL);
674 if (output_format == O_I3BAR)
675 yajl_gen_array_open(json_gen);
676 else if (output_format == O_TERM)
677 /* Restore the cursor-position, clear line */
678 printf("\033[u\033[K");
679 for (j = 0; j < cfg_size(cfg, "order"); j++) {
680 cur_instance = per_instance + j;
682 print_separator(separator);
684 const char *current = cfg_getnstr(cfg, "order", j);
687 SEC_OPEN_MAP("ipv6");
688 print_ipv6_info(json_gen, buffer, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
692 CASE_SEC_TITLE("wireless") {
693 SEC_OPEN_MAP("wireless");
694 const char *interface = NULL;
695 if (strcasecmp(title, "_first_") == 0)
696 interface = first_eth_interface(NET_TYPE_WIRELESS);
697 if (interface == NULL)
699 print_wireless_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"), cfg_getstr(sec, "format_quality"));
703 CASE_SEC_TITLE("ethernet") {
704 SEC_OPEN_MAP("ethernet");
705 const char *interface = NULL;
706 if (strcasecmp(title, "_first_") == 0)
707 interface = first_eth_interface(NET_TYPE_ETHERNET);
708 if (interface == NULL)
710 print_eth_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
714 CASE_SEC_TITLE("battery") {
715 SEC_OPEN_MAP("battery");
716 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"));
720 CASE_SEC_TITLE("run_watch") {
721 SEC_OPEN_MAP("run_watch");
722 print_run_watch(json_gen, buffer, title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"));
726 CASE_SEC_TITLE("path_exists") {
727 SEC_OPEN_MAP("path_exists");
728 print_path_exists(json_gen, buffer, title, cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"));
732 CASE_SEC_TITLE("disk") {
733 SEC_OPEN_MAP("disk_info");
734 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"));
739 SEC_OPEN_MAP("load");
740 print_load(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "format_above_threshold"), cfg_getfloat(sec, "max_threshold"));
745 SEC_OPEN_MAP("memory");
746 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"));
751 SEC_OPEN_MAP("time");
752 print_time(json_gen, buffer, NULL, cfg_getstr(sec, "format"), NULL, NULL, NULL, tv.tv_sec);
756 CASE_SEC_TITLE("tztime") {
757 SEC_OPEN_MAP("tztime");
758 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);
763 SEC_OPEN_MAP("ddate");
764 print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), tv.tv_sec);
768 CASE_SEC_TITLE("volume") {
769 SEC_OPEN_MAP("volume");
770 print_volume(json_gen, buffer, cfg_getstr(sec, "format"),
771 cfg_getstr(sec, "format_muted"),
772 cfg_getstr(sec, "device"),
773 cfg_getstr(sec, "mixer"),
774 cfg_getint(sec, "mixer_idx"));
778 CASE_SEC_TITLE("cpu_temperature") {
779 SEC_OPEN_MAP("cpu_temperature");
780 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"));
784 CASE_SEC("cpu_usage") {
785 SEC_OPEN_MAP("cpu_usage");
786 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"));
790 if (output_format == O_I3BAR) {
791 yajl_gen_array_close(json_gen);
792 const unsigned char *buf;
798 yajl_gen_get_buf(json_gen, &buf, &len);
799 write(STDOUT_FILENO, buf, len);
800 yajl_gen_clear(json_gen);
810 /* To provide updates on every full second (as good as possible)
811 * we don’t use sleep(interval) but we sleep until the next
812 * second (with microsecond precision) plus (interval-1)
813 * seconds. We also align to 60 seconds modulo interval such
814 * that we start with :00 on every new minute. */
815 struct timeval current_timeval;
816 gettimeofday(¤t_timeval, NULL);
817 struct timespec ts = {interval - 1 - (current_timeval.tv_sec % interval), (10e5 - current_timeval.tv_usec) * 1000};
818 nanosleep(&ts, NULL);