X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=i3status.c;h=462721b9055005234ae6096845b7d2e4bf2e6e2a;hb=a13b2e7288e943359ccb37be86efb716efbe98c8;hp=a0415d3aa9b4b571d2aac19b64ed37d6cf47aa0b;hpb=6b0c635ce896fb81f4b3138d8c22b879c7a9988f;p=i3%2Fi3status diff --git a/i3status.c b/i3status.c index a0415d3..462721b 100644 --- a/i3status.c +++ b/i3status.c @@ -1,702 +1,723 @@ /* - * i3status – Generates a status line for dzen2 or wmii + * vim:ts=4:sw=4:expandtab * + * i3status – Generates a status line for dzen2 or xmobar * - * Copyright © 2008-2009 Michael Stapelberg and contributors - * All rights reserved. + * Copyright © 2008 Michael Stapelberg and contributors + * Copyright © 2009 Thorsten Toepper + * Copyright © 2010 Axel Wagner + * Copyright © 2010 Fernando Tarlá Cardoso Lemos * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above copyright notice, this - * list of conditions and the following disclaimer in the documentation and/or other - * materials provided with the distribution. - * - * * Neither the name of Michael Stapelberg nor the names of contributors - * may be used to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. + * See file LICENSE for license information. * */ -#include -#include -#include +#include #include #include -#include #include -#include #include #include -#include -#include -#include -#include #include #include -#include -#include -#include #include +#include +#include +#include +#include +#include +#include +#include +#include -#include "queue.h" - -#ifdef LINUX -#include -#include -#else -/* TODO: correctly check for *BSD */ -#include -#include -#include -#endif +#include +#include #include "i3status.h" -#define BAR "^fg(#333333)^p(5;-2)^ro(2)^p()^fg()^p(5)" +#define exit_if_null(pointer, ...) \ + { \ + if (pointer == NULL) \ + die(__VA_ARGS__); \ + } + +#define CFG_CUSTOM_ALIGN_OPT \ + CFG_STR_CB("align", NULL, CFGF_NONE, parse_align) -struct battery { - const char *path; - SIMPLEQ_ENTRY(battery) batteries; -}; +#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) -SIMPLEQ_HEAD(battery_head, battery) batteries; +#define CFG_CUSTOM_COLOR_OPTS CFG_COLOR_OPTS(NULL, NULL, NULL) + +#define CFG_CUSTOM_MIN_WIDTH_OPT \ + CFG_PTR_CB("min_width", NULL, CFGF_NONE, parse_min_width, free) /* socket file descriptor for general purposes */ -static int general_socket; - -static const char *wlan_interface; -static const char *eth_interface; -static char *wmii_path; -static const char *time_format; -static const char *battery_path; -static bool use_colors; -static bool get_ethspeed; -static const char *wmii_normcolors = "#222222 #333333"; -static char order[MAX_ORDER][2]; -static const char **run_watches; -static unsigned int num_run_watches; -static unsigned int interval = 1; +int general_socket; -/* - * This function just concats two strings in place, it should only be used - * for concatting order to the name of a file or concatting color codes. - * Otherwise, the buffer size would have to be increased. - * - */ -static char *concat(const char *str1, const char *str2) { - static char concatbuf[32]; - (void)snprintf(concatbuf, sizeof(concatbuf), "%s%s", str1, str2); - return concatbuf; -} +static bool exit_upon_signal = false; -/* - * Returns the correct color format for dzen (^fg(color)) or wmii (color ) - * - */ -static char *color(const char *colorstr) { - static char colorbuf[32]; -#ifdef DZEN - (void)snprintf(colorbuf, sizeof(colorbuf), "^fg(%s)", colorstr); -#else - (void)snprintf(colorbuf, sizeof(colorbuf), "%s %s ", colorstr, wmii_normcolors); -#endif - return colorbuf; -} +cfg_t *cfg, *cfg_general, *cfg_section; -/* - * Cleans wmii's /rbar directory by deleting all regular files - * - */ -static void cleanup_rbar_dir() { -#ifdef DZEN - return; -#endif - struct dirent *ent; - DIR *dir; - char pathbuf[strlen(wmii_path)+256+1]; - - if ((dir = opendir(wmii_path)) == NULL) - exit(EXIT_FAILURE); - - while ((ent = readdir(dir)) != NULL) { - if (ent->d_type == DT_REG) { - (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, ent->d_name); - if (unlink(pathbuf) == -1) - exit(EXIT_FAILURE); - } - } - - (void)closedir(dir); -} +void **cur_instance; + +pthread_cond_t i3status_sleep_cond = PTHREAD_COND_INITIALIZER; +pthread_mutex_t i3status_sleep_mutex = PTHREAD_MUTEX_INITIALIZER; /* - * Creates the specified file in wmii's /rbar directory with - * correct modes and initializes colors if colormode is enabled + * 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 * */ -static void create_file(const char *name) { -#ifdef DZEN - return; -#endif - char pathbuf[strlen(wmii_path)+256+1]; - int fd; - int flags = O_CREAT | O_WRONLY; - struct stat statbuf; - - (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name); - - /* Overwrite file's contents if it exists */ - if (stat(pathbuf, &statbuf) >= 0) - flags |= O_TRUNC; - - if ((fd = open(pathbuf, flags, S_IRUSR | S_IWUSR)) < 0) - exit(EXIT_FAILURE); - if (use_colors) { - char *tmp = color("#888888"); - if (write(fd, tmp, strlen(tmp)) != (ssize_t)strlen(tmp)) - exit(EXIT_FAILURE); - } - (void)close(fd); +void fatalsig(int signum) { + exit_upon_signal = true; } /* - * Waits until wmii_path/rbar exists (= the filesystem gets mounted), - * cleans up all files and creates the needed files + * Do nothing upon SIGUSR1. Running this signal handler will nevertheless + * interrupt nanosleep() so that i3status immediately generates new output. * */ -static void setup(void) { - unsigned int i; - char pathbuf[512]; - -#ifndef DZEN - struct stat statbuf; - /* Wait until wmii_path/rbar exists */ - for (; stat(wmii_path, &statbuf) < 0; sleep(interval)); -#endif - - cleanup_rbar_dir(); - if (wlan_interface) - create_file(concat(order[ORDER_WLAN],"wlan")); - if (eth_interface) - create_file(concat(order[ORDER_ETH],"eth")); - if (battery_path) - create_file(concat(order[ORDER_BATTERY],"battery")); - create_file(concat(order[ORDER_LOAD],"load")); - if (time_format) - create_file(concat(order[ORDER_TIME],"time")); - for (i = 0; i < num_run_watches; i += 2) { - snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]); - create_file(pathbuf); - } +void sigusr1(int signum) { } /* - * Writes the given message in the corresponding file in wmii's /rbar directory + * Checks if the given path exists by calling stat(). * */ -static void write_to_statusbar(const char *name, const char *message, bool final_entry) { -#ifdef DZEN - if (final_entry) { - (void)printf("%s^p(6)\n", message); - fflush(stdout); - return; - } - (void)printf("%s" BAR, message); - return; -#endif - - char pathbuf[strlen(wmii_path)+256+1]; - int fd; - - (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name); - if ((fd = open(pathbuf, O_RDWR)) == -1) { - /* Try to re-setup stuff and just continue */ - setup(); - return; - } - if (write(fd, message, strlen(message)) != (ssize_t)strlen(message)) - exit(EXIT_FAILURE); - (void)close(fd); +static bool path_exists(const char *path) { + struct stat buf; + return (stat(path, &buf) == 0); } -/* - * Writes an errormessage to statusbar - * - */ -static void write_error_to_statusbar(const char *message) { - cleanup_rbar_dir(); - create_file("error"); - write_to_statusbar("error", message, true); +static void *scalloc(size_t size) { + void *result = calloc(size, 1); + exit_if_null(result, "Error: out of memory (calloc(%zd))\n", size); + return result; } -/* - * Write errormessage to statusbar and exit - * - */ -void die(const char *fmt, ...) { - if (wmii_path != NULL) { - char buffer[512]; - va_list ap; - va_start(ap, fmt); - (void)vsnprintf(buffer, sizeof(buffer), fmt, ap); - va_end(ap); - - write_error_to_statusbar(buffer); - } - exit(EXIT_FAILURE); +static char *sstrdup(const char *str) { + char *result = strdup(str); + exit_if_null(result, "Error: out of memory (strdup())\n"); + return result; } /* - * Skip the given character for exactly 'amount' times, returns - * a pointer to the first non-'character' character in 'input'. - * + * Parses the "align" module option (to validate input). */ -static char *skip_character(char *input, char character, int amount) { - char *walk; - size_t len = strlen(input); - int blanks = 0; +static int parse_align(cfg_t *context, cfg_opt_t *option, const char *value, void *result) { + if (strcasecmp(value, "left") != 0 && strcasecmp(value, "right") != 0 && strcasecmp(value, "center") != 0) + die("Invalid alignment attribute found in section %s, line %d: \"%s\"\n" + "Valid attributes are: left, center, right\n", + context->name, context->line, value); - for (walk = input; ((size_t)(walk - input) < len) && (blanks < amount); walk++) - if (*walk == character) - blanks++; + const char **cresult = result; + *cresult = value; - return (walk == input ? walk : walk-1); + return 0; } /* - * Get battery information from /sys. Note that it uses the design capacity to - * calculate the percentage, not the last full capacity, so you can see how - * worn off your battery is. - * + * Parses the "min_width" module option whose value can either be a string or an integer. */ -static char *get_battery_info(const char *path) { - char buf[1024]; - static char part[512]; - char *walk, *last; - int fd; - int full_design = -1, - remaining = -1, - present_rate = -1; - charging_status_t status = CS_DISCHARGING; - - if ((fd = open(path, O_RDONLY)) == -1) - return "No battery found"; - - memset(part, 0, sizeof(part)); - (void)read(fd, buf, sizeof(buf)); - for (walk = buf, last = buf; (walk-buf) < 1024; walk++) - if (*walk == '=') { - if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN") || - BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL_DESIGN")) - full_design = atoi(walk+1); - else if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW") || - BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW")) - remaining = atoi(walk+1); - else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW")) - present_rate = atoi(walk+1); - else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging")) - status = CS_CHARGING; - else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Full")) - status = CS_FULL; - } else if (*walk == '\n') - last = walk+1; - (void)close(fd); - - if ((full_design == 1) || (remaining == -1)) - return part; - - if (present_rate > 0) { - float remaining_time; - int seconds, hours, minutes; - if (status == CS_CHARGING) - remaining_time = ((float)full_design - (float)remaining) / (float)present_rate; - else if (status == CS_DISCHARGING) - remaining_time = ((float)remaining / (float)present_rate); - else remaining_time = 0; - - seconds = (int)(remaining_time * 3600.0); - hours = seconds / 3600; - seconds -= (hours * 3600); - minutes = seconds / 60; - seconds -= (minutes * 60); - - (void)snprintf(part, sizeof(part), "%s %.02f%% %02d:%02d:%02d", - (status == CS_CHARGING ? "CHR" : - (status == CS_DISCHARGING ? "BAT" : "FULL")), - (((float)remaining / (float)full_design) * 100), - hours, minutes, seconds); - } else { - (void)snprintf(part, sizeof(part), "%s %.02f%%", - (status == CS_CHARGING ? "CHR" : - (status == CS_DISCHARGING ? "BAT" : "FULL")), - (((float)remaining / (float)full_design) * 100)); - } - return part; +static int parse_min_width(cfg_t *context, cfg_opt_t *option, const char *value, void *result) { + char *end; + long num = strtol(value, &end, 10); + + if (num < 0) + die("Invalid min_width attribute found in section %s, line %d: %d\n" + "Expected positive integer or string\n", + context->name, context->line, num); + else if (num == LONG_MIN || num == LONG_MAX || (end && *end != '\0')) + num = 0; + + if (strlen(value) == 0) + die("Empty min_width attribute found in section %s, line %d\n" + "Expected positive integer or non-empty string\n", + context->name, context->line); + + if (strcmp(value, "0") == 0) + die("Invalid min_width attribute found in section %s, line %d: \"%s\"\n" + "Expected positive integer or string\n", + context->name, context->line, value); + + struct min_width *parsed = scalloc(sizeof(struct min_width)); + parsed->num = num; + + /* num is preferred, but if it’s 0 (i.e. not valid), store and use + * the raw string value */ + if (num == 0) + parsed->str = sstrdup(value); + + struct min_width **cresult = result; + *cresult = parsed; + + return 0; } /* - * Return the IP address for the given interface or "no IP" if the - * interface is up and running but hasn't got an IP address yet + * Validates a color in "#RRGGBB" format * */ -static const char *get_ip_address(const char *interface) { - static char part[512]; - struct ifreq ifr; - struct sockaddr_in addr; - socklen_t len = sizeof(struct sockaddr_in); - memset(part, 0, sizeof(part)); - - /* First check if the interface is running */ - (void)strcpy(ifr.ifr_name, interface); - if (ioctl(general_socket, SIOCGIFFLAGS, &ifr) < 0 || - !(ifr.ifr_flags & IFF_RUNNING)) - return NULL; - - /* Interface is up, get the IP address */ - (void)strcpy(ifr.ifr_name, interface); - ifr.ifr_addr.sa_family = AF_INET; - if (ioctl(general_socket, SIOCGIFADDR, &ifr) < 0) - return "no IP"; - - memcpy(&addr, &ifr.ifr_addr, len); - (void)inet_ntop(AF_INET, &addr.sin_addr.s_addr, part, len); - if (strlen(part) == 0) - (void)snprintf(part, sizeof(part), "no IP"); - - return part; +static int valid_color(const char *value) { + const int len = strlen(value); + + if (output_format == O_LEMONBAR) { + /* lemonbar supports an optional alpha channel */ + if (len != strlen("#rrggbb") && len != strlen("#aarrggbb")) { + return 0; + } + } else { + if (len != strlen("#rrggbb")) { + return 0; + } + } + if (value[0] != '#') + return 0; + for (int i = 1; i < len; ++i) { + if (value[i] >= '0' && value[i] <= '9') + continue; + if (value[i] >= 'a' && value[i] <= 'f') + continue; + if (value[i] >= 'A' && value[i] <= 'F') + continue; + return 0; + } + return 1; } /* - * Just parses /proc/net/wireless looking for lines beginning with - * wlan_interface, extracting the quality of the link and adding the - * current IP address of wlan_interface. + * This function resolves ~ in pathnames. + * It may resolve wildcards in the first part of the path, but if no match + * or multiple matches are found, it just returns a copy of path as given. * */ -static char *get_wireless_info() { - char buf[1024]; - static char part[512]; - char *interfaces; - int fd; - memset(buf, 0, sizeof(buf)); - memset(part, 0, sizeof(part)); - - if ((fd = open("/proc/net/wireless", O_RDONLY)) == -1) - die("Could not open /proc/net/wireless\n"); - (void)read(fd, buf, sizeof(buf)); - (void)close(fd); - - interfaces = skip_character(buf, '\n', 1) + 1; - while ((interfaces = skip_character(interfaces, '\n', 1)+1) < buf+strlen(buf)) { - while (isspace((int)*interfaces)) - interfaces++; - if (!BEGINS_WITH(interfaces, wlan_interface)) - continue; - int quality; - if (sscanf(interfaces, "%*[^:]: 0000 %d", &quality) != 1) - continue; - if ((quality == UCHAR_MAX) || (quality == 0)) { - if (use_colors) - (void)snprintf(part, sizeof(part), "%sW: down", color("#FF0000")); - else (void)snprintf(part, sizeof(part), "W: down"); - } else (void)snprintf(part, sizeof(part), "%sW: (%03d%%) %s", - color("#00FF00"), quality, get_ip_address(wlan_interface)); - return part; - } - - return part; +static char *resolve_tilde(const char *path) { + static glob_t globbuf; + char *head, *tail, *result = NULL; + + tail = strchr(path, '/'); + head = strndup(path, tail ? (size_t)(tail - path) : strlen(path)); + + int res = glob(head, GLOB_TILDE, NULL, &globbuf); + free(head); + /* no match, or many wildcard matches are bad */ + if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1) + result = sstrdup(path); + else if (res != 0) { + die("glob() failed"); + } else { + head = globbuf.gl_pathv[0]; + result = scalloc(strlen(head) + (tail ? strlen(tail) : 0) + 1); + strncpy(result, head, strlen(head)); + if (tail) + strncat(result, tail, strlen(tail)); + } + globfree(&globbuf); + + return result; } -/* - * Combines ethernet IP addresses and speed (if requested) for displaying - * - */ -static char *get_eth_info() { - static char part[512]; - const char *ip_address = get_ip_address(eth_interface); - int ethspeed = 0; - - if (get_ethspeed) { -#ifdef LINUX - /* This code path requires root privileges */ - struct ifreq ifr; - struct ethtool_cmd ecmd; - - ecmd.cmd = ETHTOOL_GSET; - (void)memset(&ifr, 0, sizeof(ifr)); - ifr.ifr_data = (caddr_t)&ecmd; - (void)strcpy(ifr.ifr_name, eth_interface); - if (ioctl(general_socket, SIOCETHTOOL, &ifr) == 0) - ethspeed = (ecmd.speed == USHRT_MAX ? 0 : ecmd.speed); - else get_ethspeed = false; -#endif - } - - if (ip_address == NULL) - (void)snprintf(part, sizeof(part), "E: down"); - else { - if (get_ethspeed) - (void)snprintf(part, sizeof(part), "E: %s (%d Mbit/s)", ip_address, ethspeed); - else (void)snprintf(part, sizeof(part), "E: %s", ip_address); - } - - return part; +static char *get_config_path(void) { + char *xdg_config_home, *xdg_config_dirs, *config_path; + + /* 1: check the traditional path under the home directory */ + config_path = resolve_tilde("~/.i3status.conf"); + if (path_exists(config_path)) + return config_path; + + /* 2: check for $XDG_CONFIG_HOME/i3status/config */ + if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL) + xdg_config_home = "~/.config"; + + xdg_config_home = resolve_tilde(xdg_config_home); + if (asprintf(&config_path, "%s/i3status/config", xdg_config_home) == -1) + die("asprintf() failed"); + free(xdg_config_home); + + if (path_exists(config_path)) + return config_path; + free(config_path); + + /* 3: check the traditional path under /etc */ + config_path = SYSCONFDIR "/i3status.conf"; + if (path_exists(config_path)) + return sstrdup(config_path); + + /* 4: check for $XDG_CONFIG_DIRS/i3status/config */ + if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL) + xdg_config_dirs = "/etc/xdg"; + + char *buf = strdup(xdg_config_dirs); + char *tok = strtok(buf, ":"); + while (tok != NULL) { + tok = resolve_tilde(tok); + if (asprintf(&config_path, "%s/i3status/config", tok) == -1) + die("asprintf() failed"); + free(tok); + if (path_exists(config_path)) { + free(buf); + return config_path; + } + free(config_path); + tok = strtok(NULL, ":"); + } + free(buf); + + die("Unable to find the configuration file (looked at " + "~/.i3status.conf, $XDG_CONFIG_HOME/i3status/config, " + "/etc/i3status.conf and $XDG_CONFIG_DIRS/i3status/config)"); + return NULL; } /* - * Checks if the PID in path is still valid by checking: - * (Linux) if /proc/ exists - * (NetBSD) if sysctl returns process infos for this pid - * + * Returns the default separator to use if no custom separator has been specified. */ -static bool process_runs(const char *path) { - char pidbuf[16]; - static glob_t globbuf; - int fd; - memset(pidbuf, 0, sizeof(pidbuf)); - - if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0) - die("glob() failed\n"); - fd = open((globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path), O_RDONLY); - globfree(&globbuf); - if (fd < 0) - return false; - (void)read(fd, pidbuf, sizeof(pidbuf)); - (void)close(fd); - -#ifdef LINUX - struct stat statbuf; - char procbuf[512]; - (void)snprintf(procbuf, sizeof(procbuf), "/proc/%ld", strtol(pidbuf, NULL, 10)); - return (stat(procbuf, &statbuf) >= 0); -#else - /* TODO: correctly check for NetBSD. Evaluate if this runs on OpenBSD/FreeBSD */ - struct kinfo_proc info; - size_t length = sizeof(struct kinfo_proc); - int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, strtol(pidbuf, NULL, 10) }; - if (sysctl(mib, 4, &info, &length, NULL, 0) < 0) - return false; - return (length != 0); -#endif +static char *get_default_separator() { + if (output_format == O_DZEN2) + return "^p(5;-2)^ro(2)^p()^p(5)"; + if (output_format == O_I3BAR) + // anything besides the empty string indicates that the default separator should be used + return "default"; + return " | "; } -/* - * Reads the configuration from the given file - * - */ -static int load_configuration(const char *configfile) { - #define OPT(x) else if (strcasecmp(dest_name, x) == 0) - - /* check if the file exists */ - struct stat buf; - if (stat(configfile, &buf) < 0) - return -1; - - int result = 0; - FILE *handle = fopen(configfile, "r"); - if (handle == NULL) - die("Could not open configfile\n"); - char dest_name[512], dest_value[512], whole_buffer[1026]; - - while (!feof(handle)) { - char *ret; - if ((ret = fgets(whole_buffer, 1024, handle)) == whole_buffer) { - /* sscanf implicitly strips whitespace */ - if (sscanf(whole_buffer, "%s %[^\n]", dest_name, dest_value) < 1) - continue; - } else if (ret != NULL) - die("Could not read line in configuration file\n"); - - /* skip comments and empty lines */ - if (dest_name[0] == '#' || strlen(dest_name) < 3) - continue; - - OPT("wlan") - wlan_interface = strdup(dest_value); - OPT("eth") - eth_interface = strdup(dest_value); - OPT("time_format") - time_format = strdup(dest_value); - OPT("battery_path") { - struct battery *new = calloc(1, sizeof(struct battery)); - if (new == NULL) - die("Could not allocate memory\n"); - new->path = strdup(dest_value); - SIMPLEQ_INSERT_TAIL(&batteries, new, batteries); - } OPT("color") - use_colors = true; - OPT("get_ethspeed") - get_ethspeed = true; - OPT("normcolors") - wmii_normcolors = strdup(dest_value); - OPT("interval") - interval = atoi(dest_value); - OPT("wmii_path") - { -#ifndef DZEN - static glob_t globbuf; - struct stat stbuf; - if (glob(dest_value, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0) - die("glob() failed\n"); - wmii_path = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : dest_value); - globfree(&globbuf); - - if ((stat(wmii_path, &stbuf)) == -1) { - fprintf(stderr, "Warning: wmii_path contains an invalid path\n"); - free(wmii_path); - wmii_path = strdup(dest_value); - } - if (wmii_path[strlen(wmii_path)-1] != '/') - die("wmii_path is not terminated by /\n"); -#endif - } - OPT("run_watch") - { - char *name = strdup(dest_value); - char *path = name; - while (*path != ' ') - path++; - *(path++) = '\0'; - num_run_watches += 2; - run_watches = realloc(run_watches, sizeof(char*) * num_run_watches); - run_watches[num_run_watches-2] = name; - run_watches[num_run_watches-1] = path; - } - OPT("order") - { - #define SET_ORDER(opt, idx) { if (strcasecmp(token, opt) == 0) sprintf(order[idx], "%d", c++); } - char *walk, *token; - int c = 0; - walk = token = dest_value; - while (*walk != '\0') { - while ((*walk != ',') && (*walk != '\0')) - walk++; - *(walk++) = '\0'; - SET_ORDER("run", ORDER_RUN); - SET_ORDER("wlan", ORDER_WLAN); - SET_ORDER("eth", ORDER_ETH); - SET_ORDER("battery", ORDER_BATTERY); - SET_ORDER("load", ORDER_LOAD); - SET_ORDER("time", ORDER_TIME); - token = walk; - while (isspace((int)(*token))) - token++; - } - } - else - { - result = -2; - die("Unknown configfile option: %s\n", dest_name); - } - } - fclose(handle); - -#ifndef DZEN - if (wmii_path == NULL) - exit(EXIT_FAILURE); +int main(int argc, char *argv[]) { + unsigned int j; + + cfg_opt_t general_opts[] = { + CFG_STR("output_format", "auto", CFGF_NONE), + CFG_BOOL("colors", 1, CFGF_NONE), + CFG_STR("separator", "default", 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_STR("format_down", NULL, CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t path_exists_opts[] = { + CFG_STR("path", NULL, CFGF_NONE), + CFG_STR("format", "%title: %status", CFGF_NONE), + CFG_STR("format_down", NULL, CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + 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_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + 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_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t ipv6_opts[] = { + CFG_STR("format_up", "%ip", CFGF_NONE), + CFG_STR("format_down", "no IPv6", CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + 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("status_chr", "CHR", CFGF_NONE), + CFG_STR("status_bat", "BAT", CFGF_NONE), + CFG_STR("status_full", "FULL", 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_BOOL("hide_seconds", false, CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t time_opts[] = { + CFG_STR("format", "%Y-%m-%d %H:%M:%S", CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_MIN_WIDTH_OPT, + 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_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t ddate_opts[] = { + CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t load_opts[] = { + CFG_STR("format", "%1min %5min %15min", CFGF_NONE), + CFG_FLOAT("max_threshold", 5, CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t usage_opts[] = { + CFG_STR("format", "%usage", CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_MIN_WIDTH_OPT, + 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_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t disk_opts[] = { + CFG_STR("format", "%free", CFGF_NONE), + CFG_STR("format_not_mounted", NULL, CFGF_NONE), + CFG_STR("prefix_type", "binary", CFGF_NONE), + CFG_STR("threshold_type", "percentage_avail", CFGF_NONE), + CFG_FLOAT("low_threshold", 0, CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t volume_opts[] = { + CFG_STR("format", "♪: %volume", CFGF_NONE), + CFG_STR("format_muted", "♪: 0%%", CFGF_NONE), + CFG_STR("device", "default", CFGF_NONE), + CFG_STR("mixer", "Master", CFGF_NONE), + CFG_INT("mixer_idx", 0, CFGF_NONE), + CFG_CUSTOM_ALIGN_OPT, + CFG_CUSTOM_COLOR_OPTS, + CFG_CUSTOM_MIN_WIDTH_OPT, + CFG_END()}; + + cfg_opt_t opts[] = { + CFG_STR_LIST("order", "{}", CFGF_NONE), + CFG_SEC("general", general_opts, CFGF_NONE), + CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI), + CFG_SEC("path_exists", path_exists_opts, CFGF_TITLE | CFGF_MULTI), + CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI), + CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI), + CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI), + CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI), + CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI), + 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_END()}; + + char *configfile = NULL; + int o, option_index = 0; + struct option long_options[] = { + {"config", required_argument, 0, 'c'}, + {"help", no_argument, 0, 'h'}, + {"version", no_argument, 0, 'v'}, + {0, 0, 0, 0}}; + + struct sigaction action; + memset(&action, 0, sizeof(struct sigaction)); + 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."); + + while ((o = getopt_long(argc, argv, "c:hv", long_options, &option_index)) != -1) + if ((char)o == 'c') + configfile = optarg; + else if ((char)o == 'h') { + printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n" + "Syntax: %s [-c ] [-h] [-v]\n", + argv[0]); + return 0; + } else if ((char)o == 'v') { + printf("i3status " VERSION " © 2008 Michael Stapelberg and contributors\n"); + return 0; + } + + if (configfile == NULL) + configfile = get_config_path(); + + cfg = cfg_init(opts, CFGF_NOCASE); + if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR) + return EXIT_FAILURE; + + if (cfg_size(cfg, "order") == 0) + die("Your 'order' array is empty. Please fix your config.\n"); + + cfg_general = cfg_getsec(cfg, "general"); + if (cfg_general == NULL) + die("Could not get section \"general\"\n"); + + char *output_str = cfg_getstr(cfg_general, "output_format"); + if (strcasecmp(output_str, "auto") == 0) { + fprintf(stderr, "i3status: trying to auto-detect output_format setting\n"); + output_str = auto_detect_format(); + if (!output_str) { + output_str = "none"; + fprintf(stderr, "i3status: falling back to \"none\"\n"); + } else { + fprintf(stderr, "i3status: auto-detected \"%s\"\n", output_str); + } + } + + if (strcasecmp(output_str, "dzen2") == 0) + output_format = O_DZEN2; + else if (strcasecmp(output_str, "xmobar") == 0) + output_format = O_XMOBAR; + else if (strcasecmp(output_str, "i3bar") == 0) + output_format = O_I3BAR; + else if (strcasecmp(output_str, "lemonbar") == 0) + output_format = O_LEMONBAR; + 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); + + const char *separator = cfg_getstr(cfg_general, "separator"); + + /* lemonbar needs % to be escaped with another % */ + pct_mark = (output_format == O_LEMONBAR) ? "%%" : "%"; + + // if no custom separator has been provided, use the default one + if (strcasecmp(separator, "default") == 0) + separator = get_default_separator(); + + 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"))) + 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 - return result; -} - -int main(int argc, char *argv[]) { - char part[512], - pathbuf[512]; - unsigned int i; - - char *configfile = PREFIX "/etc/i3status.conf"; - int o, option_index = 0; - struct option long_options[] = { - {"config", required_argument, 0, 'c'}, - {"help", no_argument, 0, 'h'}, - {0, 0, 0, 0} - }; - - SIMPLEQ_INIT(&batteries); - - while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1) - if ((char)o == 'c') - configfile = optarg; - else if ((char)o == 'h') { - printf("i3status (c) 2008-2009 Michael Stapelberg\n" - "Syntax: %s [-c ]\n", argv[0]); - return 0; - } - - if (load_configuration(configfile) < 0) - return EXIT_FAILURE; - - setup(); - - if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1) - die("Could not create socket\n"); - - while (1) { - for (i = 0; i < num_run_watches; i += 2) { - bool running = process_runs(run_watches[i+1]); - if (use_colors) - snprintf(part, sizeof(part), "%s%s: %s", - (running ? color("#00FF00") : color("#FF0000")), - run_watches[i], - (running ? "yes" : "no")); - else snprintf(part, sizeof(part), "%s: %s", run_watches[i], (running ? "yes" : "no")); - snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]); - write_to_statusbar(pathbuf, part, false); - } - - if (wlan_interface) - write_to_statusbar(concat(order[ORDER_WLAN], "wlan"), get_wireless_info(), false); - if (eth_interface) - write_to_statusbar(concat(order[ORDER_ETH], "eth"), get_eth_info(), false); - struct battery *current_battery; - SIMPLEQ_FOREACH(current_battery, &batteries, batteries) { - write_to_statusbar(concat(order[ORDER_BATTERY], "battery"), get_battery_info(current_battery->path), false); - } - - /* Get load */ -#ifdef LINUX - int load_avg; - if ((load_avg = open("/proc/loadavg", O_RDONLY)) == -1) - die("Could not open /proc/loadavg\n"); - (void)read(load_avg, part, sizeof(part)); - (void)close(load_avg); - *skip_character(part, ' ', 3) = '\0'; + if (output_format == O_I3BAR) { + /* Initialize the i3bar protocol. See i3/docs/i3bar-protocol + * for details. */ + printf("{\"version\":1}\n[\n"); + fflush(stdout); + 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"); + + int interval = cfg_getint(cfg_general, "interval"); + + /* One memory page which each plugin can use to buffer output. + * Even though it’s unclean, we just assume that the user will not + * specify a format string which expands to something longer than 4096 + * bytes — given that the output of i3status is used to display + * information on screen, more than 1024 characters for the full line + * (!), not individual plugins, seem very unlikely. */ + char buffer[4096]; + + void **per_instance = calloc(cfg_size(cfg, "order"), sizeof(*per_instance)); + pthread_mutex_lock(&i3status_sleep_mutex); + + while (1) { + if (exit_upon_signal) { + fprintf(stderr, "Exiting due to signal.\n"); + exit(1); + } + struct timeval tv; + gettimeofday(&tv, NULL); + 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++) { + cur_instance = per_instance + j; + if (j > 0) + print_separator(separator); + + const char *current = cfg_getnstr(cfg, "order", j); + + CASE_SEC("ipv6") { + SEC_OPEN_MAP("ipv6"); + print_ipv6_info(json_gen, buffer, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down")); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("wireless") { + SEC_OPEN_MAP("wireless"); + const char *interface = NULL; + if (strcasecmp(title, "_first_") == 0) + interface = first_eth_interface(NET_TYPE_WIRELESS); + if (interface == NULL) + interface = title; + print_wireless_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down")); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("ethernet") { + SEC_OPEN_MAP("ethernet"); + const char *interface = NULL; + if (strcasecmp(title, "_first_") == 0) + interface = first_eth_interface(NET_TYPE_ETHERNET); + if (interface == NULL) + interface = title; + print_eth_info(json_gen, buffer, interface, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down")); + SEC_CLOSE_MAP; + } + + 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_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")); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("run_watch") { + SEC_OPEN_MAP("run_watch"); + print_run_watch(json_gen, buffer, title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down")); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("path_exists") { + SEC_OPEN_MAP("path_exists"); + print_path_exists(json_gen, buffer, title, cfg_getstr(sec, "path"), cfg_getstr(sec, "format"), cfg_getstr(sec, "format_down")); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("disk") { + SEC_OPEN_MAP("disk_info"); + 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")); + SEC_CLOSE_MAP; + } + + CASE_SEC("load") { + SEC_OPEN_MAP("load"); + print_load(json_gen, buffer, cfg_getstr(sec, "format"), cfg_getfloat(sec, "max_threshold")); + SEC_CLOSE_MAP; + } + + CASE_SEC("time") { + SEC_OPEN_MAP("time"); + print_time(json_gen, buffer, NULL, cfg_getstr(sec, "format"), NULL, tv.tv_sec); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("tztime") { + SEC_OPEN_MAP("tztime"); + print_time(json_gen, buffer, title, 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"), tv.tv_sec); + SEC_CLOSE_MAP; + } + + CASE_SEC_TITLE("volume") { + SEC_OPEN_MAP("volume"); + print_volume(json_gen, buffer, cfg_getstr(sec, "format"), + cfg_getstr(sec, "format_muted"), + cfg_getstr(sec, "device"), + cfg_getstr(sec, "mixer"), + cfg_getint(sec, "mixer_idx")); + 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"), cfg_getint(sec, "max_threshold")); + SEC_CLOSE_MAP; + } + + CASE_SEC("cpu_usage") { + SEC_OPEN_MAP("cpu_usage"); + print_cpu_usage(json_gen, buffer, cfg_getstr(sec, "format")); + 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); + } + + printf("\n"); + fflush(stdout); + + /* To provide updates on every full second (as good as possible) + * we don’t use sleep(interval) but we sleep until the next second. + * We also align to 60 seconds modulo interval such + * that we start with :00 on every new minute. */ + struct timespec ts; +#if defined(__APPLE__) + gettimeofday(&tv, NULL); + ts.tv_sec = tv.tv_sec; #else - /* TODO: correctly check for NetBSD, check if it works the same on *BSD */ - struct loadavg load; - size_t length = sizeof(struct loadavg); - int mib[2] = { CTL_VM, VM_LOADAVG }; - if (sysctl(mib, 2, &load, &length, NULL, 0) < 0) - die("Could not sysctl({ CTL_VM, VM_LOADAVG })\n"); - double scale = load.fscale; - (void)snprintf(part, sizeof(part), "%.02f %.02f %.02f", - (double)load.ldavg[0] / scale, - (double)load.ldavg[1] / scale, - (double)load.ldavg[2] / scale); + clock_gettime(CLOCK_REALTIME, &ts); #endif - write_to_statusbar(concat(order[ORDER_LOAD], "load"), part, !time_format); - - if (time_format) { - /* Get date & time */ - time_t current_time = time(NULL); - struct tm *current_tm = localtime(¤t_time); - (void)strftime(part, sizeof(part), time_format, current_tm); - write_to_statusbar(concat(order[ORDER_TIME], "time"), part, true); - } - - sleep(interval); - } + ts.tv_sec += interval - (ts.tv_sec % interval); + ts.tv_nsec = 0; + + /* Sleep to absolute time 'ts', unless the condition + * 'i3status_sleep_cond' is signaled from another thread */ + pthread_cond_timedwait(&i3status_sleep_cond, &i3status_sleep_mutex, &ts); + } }