*
* i3status – Generates a status line for dzen2 or xmobar
*
- * Copyright © 2008-2011 Michael Stapelberg and contributors
+ * Copyright © 2008-2012 Michael Stapelberg and contributors
* Copyright © 2009 Thorsten Toepper <atsutane at freethoughts dot de>
* Copyright © 2010 Axel Wagner <mail at merovius dot de>
* Copyright © 2010 Fernando Tarlá Cardoso Lemos <fernandotcl at gmail dot com>
#include <locale.h>
#include <yajl/yajl_gen.h>
+#include <yajl/yajl_version.h>
#include "i3status.h"
#define exit_if_null(pointer, ...) { if (pointer == NULL) die(__VA_ARGS__); }
+#define CFG_COLOR_OPTS(good, degraded, bad) \
+ CFG_STR("color_good", good, CFGF_NONE), \
+ CFG_STR("color_degraded", degraded, CFGF_NONE), \
+ CFG_STR("color_bad", bad, CFGF_NONE)
+
+#define CFG_CUSTOM_COLOR_OPTS CFG_COLOR_OPTS(NULL, NULL, NULL)
+
/* socket file descriptor for general purposes */
int general_socket;
-cfg_t *cfg, *cfg_general;
+static bool exit_upon_signal = false;
+
+cfg_t *cfg, *cfg_general, *cfg_section;
+
+/*
+ * Set the exit_upon_signal flag, because one cannot do anything in a safe
+ * manner in a signal handler (e.g. fprintf, which we really want to do for
+ * debugging purposes), see
+ * https://www.securecoding.cert.org/confluence/display/seccode/SIG30-C.+Call+only+asynchronous-safe+functions+within+signal+handlers
+ *
+ */
+void fatalsig(int signum) {
+ exit_upon_signal = true;
+}
/*
- * Exit upon SIGPIPE because when we have nowhere to write to, gathering
- * system information is pointless.
+ * Do nothing upon SIGUSR1. Running this signal handler will nevertheless
+ * interrupt nanosleep() so that i3status immediately generates new output.
*
*/
-void sigpipe(int signum) {
- fprintf(stderr, "Received SIGPIPE, exiting\n");
- exit(1);
+void sigusr1(int signum) {
}
/*
return result;
}
-static char *get_config_path() {
+static char *get_config_path(void) {
char *xdg_config_home, *xdg_config_dirs, *config_path;
/* 1: check the traditional path under the home directory */
cfg_opt_t general_opts[] = {
CFG_STR("output_format", "auto", CFGF_NONE),
CFG_BOOL("colors", 1, CFGF_NONE),
- CFG_STR("color_good", "#00FF00", CFGF_NONE),
- CFG_STR("color_degraded", "#FFFF00", CFGF_NONE),
- CFG_STR("color_bad", "#FF0000", CFGF_NONE),
CFG_STR("color_separator", "#333333", CFGF_NONE),
CFG_INT("interval", 1, CFGF_NONE),
+ CFG_COLOR_OPTS("#00FF00", "#FFFF00", "#FF0000"),
CFG_END()
};
cfg_opt_t run_watch_opts[] = {
CFG_STR("pidfile", NULL, CFGF_NONE),
CFG_STR("format", "%title: %status", CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
cfg_opt_t wireless_opts[] = {
CFG_STR("format_up", "W: (%quality at %essid, %bitrate) %ip", CFGF_NONE),
CFG_STR("format_down", "W: down", CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
cfg_opt_t ethernet_opts[] = {
CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
CFG_STR("format_down", "E: down", CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
cfg_opt_t ipv6_opts[] = {
CFG_STR("format_up", "%ip", CFGF_NONE),
CFG_STR("format_down", "no IPv6", CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
cfg_opt_t battery_opts[] = {
CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
+ CFG_STR("format_down", "No battery", CFGF_NONE),
CFG_STR("path", "/sys/class/power_supply/BAT%d/uevent", CFGF_NONE),
+ CFG_INT("low_threshold", 30, CFGF_NONE),
+ CFG_STR("threshold_type", "time", CFGF_NONE),
CFG_BOOL("last_full_capacity", false, CFGF_NONE),
+ CFG_BOOL("integer_battery_capacity", false, CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
cfg_opt_t time_opts[] = {
- CFG_STR("format", "%d.%m.%Y %H:%M:%S", CFGF_NONE),
+ CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE),
+ CFG_END()
+ };
+
+ cfg_opt_t tztime_opts[] = {
+ CFG_STR("format", "%Y-%m-%d %H:%M:%S %Z", CFGF_NONE),
+ CFG_STR("timezone", "", CFGF_NONE),
CFG_END()
};
cfg_opt_t load_opts[] = {
CFG_STR("format", "%1min %5min %15min", CFGF_NONE),
+ CFG_INT("max_threshold", 5, CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
cfg_opt_t temp_opts[] = {
CFG_STR("format", "%degrees C", CFGF_NONE),
CFG_STR("path", NULL, CFGF_NONE),
+ CFG_INT("max_threshold", 75, CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
CFG_STR("device", "default", CFGF_NONE),
CFG_STR("mixer", "Master", CFGF_NONE),
CFG_INT("mixer_idx", 0, CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
CFG_SEC("volume", volume_opts, CFGF_TITLE | CFGF_MULTI),
CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
CFG_SEC("time", time_opts, CFGF_NONE),
+ CFG_SEC("tztime", tztime_opts, CFGF_TITLE | CFGF_MULTI),
CFG_SEC("ddate", ddate_opts, CFGF_NONE),
CFG_SEC("load", load_opts, CFGF_NONE),
CFG_SEC("cpu_usage", usage_opts, CFGF_NONE),
+ CFG_CUSTOM_COLOR_OPTS,
CFG_END()
};
struct sigaction action;
memset(&action, 0, sizeof(struct sigaction));
- action.sa_handler = sigpipe;
+ action.sa_handler = fatalsig;
+
+ /* Exit upon SIGPIPE because when we have nowhere to write to, gathering system
+ * information is pointless. Also exit explicitly on SIGTERM and SIGINT because
+ * only this will trigger a reset of the cursor in the terminal output-format.
+ */
sigaction(SIGPIPE, &action, NULL);
+ sigaction(SIGTERM, &action, NULL);
+ sigaction(SIGINT, &action, NULL);
+
+ memset(&action, 0, sizeof(struct sigaction));
+ action.sa_handler = sigusr1;
+ sigaction(SIGUSR1, &action, NULL);
if (setlocale(LC_ALL, "") == NULL)
die("Could not set locale. Please make sure all your LC_* / LANG settings are correct.");
if ((char)o == 'c')
configfile = optarg;
else if ((char)o == 'h') {
- printf("i3status " VERSION " © 2008-2011 Michael Stapelberg and contributors\n"
+ printf("i3status " VERSION " © 2008-2012 Michael Stapelberg and contributors\n"
"Syntax: %s [-c <configfile>] [-h] [-v]\n", argv[0]);
return 0;
} else if ((char)o == 'v') {
- printf("i3status " VERSION " © 2008-2011 Michael Stapelberg and contributors\n");
+ printf("i3status " VERSION " © 2008-2012 Michael Stapelberg and contributors\n");
return 0;
}
output_format = O_XMOBAR;
else if (strcasecmp(output_str, "i3bar") == 0)
output_format = O_I3BAR;
+ else if (strcasecmp(output_str, "term") == 0)
+ output_format = O_TERM;
else if (strcasecmp(output_str, "none") == 0)
output_format = O_NONE;
else die("Unknown output format: \"%s\"\n", output_str);
|| !valid_color(cfg_getstr(cfg_general, "color_separator")))
die("Bad color format");
+#if YAJL_MAJOR >= 2
yajl_gen json_gen = yajl_gen_alloc(NULL);
+#else
+ yajl_gen json_gen = yajl_gen_alloc(NULL, NULL);
+#endif
if (output_format == O_I3BAR) {
/* Initialize the i3bar protocol. See i3/docs/i3bar-protocol
yajl_gen_array_open(json_gen);
yajl_gen_clear(json_gen);
}
+ if (output_format == O_TERM) {
+ /* Save the cursor-position and hide the cursor */
+ printf("\033[s\033[?25l");
+ /* Undo at exit */
+ atexit(&reset_cursor);
+ }
if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
die("Could not create socket\n");
* (!), not individual plugins, seem very unlikely. */
char buffer[4096];
- struct tm tm;
while (1) {
+ if (exit_upon_signal) {
+ fprintf(stderr, "Exiting due to signal.\n");
+ exit(1);
+ }
struct timeval tv;
gettimeofday(&tv, NULL);
- time_t current_time = tv.tv_sec;
- struct tm *current_tm = NULL;
- if (current_time != (time_t) -1) {
- localtime_r(¤t_time, &tm);
- current_tm = &tm;
- }
if (output_format == O_I3BAR)
yajl_gen_array_open(json_gen);
+ else if (output_format == O_TERM)
+ /* Restore the cursor-position, clear line */
+ printf("\033[u\033[K");
for (j = 0; j < cfg_size(cfg, "order"); j++) {
if (j > 0)
print_seperator();
CASE_SEC_TITLE("battery") {
SEC_OPEN_MAP("battery");
- print_battery_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getbool(sec, "last_full_capacity"));
+ print_battery_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down"), cfg_getint(sec, "low_threshold"), cfg_getstr(sec, "threshold_type"), cfg_getbool(sec, "last_full_capacity"), cfg_getbool(sec, "integer_battery_capacity"));
SEC_CLOSE_MAP;
}
CASE_SEC("load") {
SEC_OPEN_MAP("load");
- print_load(json_gen, buffer, cfg_getstr(sec, "format"));
+ print_load(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getint(sec, "max_threshold"));
SEC_CLOSE_MAP;
}
CASE_SEC("time") {
SEC_OPEN_MAP("time");
- print_time(json_gen, buffer, cfg_getstr(sec, "format"), current_tm);
+ print_time(json_gen, buffer, cfg_getstr(sec, "format"), NULL, tv.tv_sec);
+ SEC_CLOSE_MAP;
+ }
+
+ CASE_SEC_TITLE("tztime") {
+ SEC_OPEN_MAP("tztime");
+ print_time(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getstr(sec, "timezone"), tv.tv_sec);
SEC_CLOSE_MAP;
}
CASE_SEC("ddate") {
SEC_OPEN_MAP("ddate");
- print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), current_tm);
+ print_ddate(json_gen, buffer, cfg_getstr(sec, "format"), tv.tv_sec);
SEC_CLOSE_MAP;
}
CASE_SEC_TITLE("cpu_temperature") {
SEC_OPEN_MAP("cpu_temperature");
- print_cpu_temperature_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"));
+ print_cpu_temperature_info(json_gen, buffer, atoi(title), cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getint(sec, "max_threshold"));
SEC_CLOSE_MAP;
}
if (output_format == O_I3BAR) {
yajl_gen_array_close(json_gen);
const unsigned char *buf;
+#if YAJL_MAJOR >= 2
size_t len;
+#else
+ unsigned int len;
+#endif
yajl_gen_get_buf(json_gen, &buf, &len);
write(STDOUT_FILENO, buf, len);
yajl_gen_clear(json_gen);
/* To provide updates on every full second (as good as possible)
* we don’t use sleep(interval) but we sleep until the next
* second (with microsecond precision) plus (interval-1)
- * seconds. */
+ * seconds. We also align to 60 seconds modulo interval such
+ * that we start with :00 on every new minute. */
struct timeval current_timeval;
gettimeofday(¤t_timeval, NULL);
- struct timespec ts = {interval - 1, (10e5 - current_timeval.tv_usec) * 1000};
+ struct timespec ts = {interval - 1 - (current_timeval.tv_sec % interval), (10e5 - current_timeval.tv_usec) * 1000};
nanosleep(&ts, NULL);
}
}