12 #include <sys/types.h>
13 #include <sys/socket.h>
16 #include <sys/resource.h>
119 xcb_generic_event_t *event;
121 while ((event = xcb_poll_for_event(
conn)) != NULL) {
122 if (event->response_type == 0) {
124 DLOG(
"Expected X11 Error received for sequence %x\n", event->sequence);
126 xcb_generic_error_t *error = (xcb_generic_error_t*)event;
127 ELOG(
"X11 Error received! sequence 0x%x, error_code = %d\n",
128 error->sequence, error->error_code);
135 int type = (
event->response_type & 0x7F);
150 DLOG(
"Handling XKB event\n");
156 bool mapping_changed =
false;
157 while (XPending(
xkbdpy)) {
158 XNextEvent(
xkbdpy, (XEvent*)&ev);
164 if (ev.any.xkb_type == XkbMapNotify) {
165 mapping_changed =
true;
169 if (ev.any.xkb_type != XkbStateNotify) {
170 ELOG(
"Unknown XKB event received (type %d)\n", ev.any.xkb_type);
183 if (ev.state.group == XkbGroup2Index) {
184 DLOG(
"Mode_switch enabled\n");
188 if (ev.state.group == XkbGroup1Index) {
189 DLOG(
"Mode_switch disabled\n");
195 if (!mapping_changed)
198 DLOG(
"Keyboard mapping changed, updating keybindings\n");
205 DLOG(
"Re-grabbing...\n");
219 #if EV_VERSION_MAJOR >= 4
224 fprintf(stderr,
"Closing SHM log \"%s\"\n",
shmlogname);
237 fprintf(stderr,
"Received signal %d, terminating\n", sig);
239 fprintf(stderr,
"Closing SHM log \"%s\"\n",
shmlogname);
246 int main(
int argc,
char *argv[]) {
249 const char *i3_version = I3_VERSION;
250 char *override_configpath = NULL;
251 bool autostart =
true;
252 char *layout_path = NULL;
253 bool delete_layout_path =
false;
254 bool force_xinerama =
false;
255 char *fake_outputs = NULL;
256 bool disable_signalhandler =
false;
257 static struct option long_options[] = {
258 {
"no-autostart", no_argument, 0,
'a'},
259 {
"config", required_argument, 0,
'c'},
260 {
"version", no_argument, 0,
'v'},
261 {
"help", no_argument, 0,
'h'},
262 {
"layout", required_argument, 0,
'L'},
263 {
"restart", required_argument, 0, 0},
264 {
"force-xinerama", no_argument, 0, 0},
265 {
"force_xinerama", no_argument, 0, 0},
266 {
"disable-signalhandler", no_argument, 0, 0},
267 {
"shmlog-size", required_argument, 0, 0},
268 {
"shmlog_size", required_argument, 0, 0},
269 {
"get-socketpath", no_argument, 0, 0},
270 {
"get_socketpath", no_argument, 0, 0},
271 {
"fake_outputs", required_argument, 0, 0},
272 {
"fake-outputs", required_argument, 0, 0},
275 int option_index = 0, opt;
276 xcb_void_cookie_t colormap_cookie;
278 setlocale(LC_ALL,
"");
285 if (!isatty(fileno(stdout)))
286 setbuf(stdout, NULL);
300 debug_build = ((strchr(i3_version,
'(') - i3_version) > 10);
307 while ((opt = getopt_long(argc, argv,
"c:CvaL:hld:V", long_options, &option_index)) != -1) {
310 LOG(
"Autostart disabled using -a\n");
316 delete_layout_path =
false;
319 FREE(override_configpath);
320 override_configpath =
sstrdup(optarg);
323 LOG(
"Checking configuration file only (-C)\n");
327 printf(
"i3 version " I3_VERSION
" © 2009-2012 Michael Stapelberg and contributors\n");
333 LOG(
"Enabling debug loglevel %s\n", optarg);
340 if (strcmp(long_options[option_index].name,
"force-xinerama") == 0 ||
341 strcmp(long_options[option_index].name,
"force_xinerama") == 0) {
342 force_xinerama =
true;
343 ELOG(
"Using Xinerama instead of RandR. This option should be "
344 "avoided at all cost because it does not refresh the list "
345 "of screens, so you cannot configure displays at runtime. "
346 "Please check if your driver really does not support RandR "
347 "and disable this option as soon as you can.\n");
349 }
else if (strcmp(long_options[option_index].name,
"disable-signalhandler") == 0) {
350 disable_signalhandler =
true;
352 }
else if (strcmp(long_options[option_index].name,
"get-socketpath") == 0 ||
353 strcmp(long_options[option_index].name,
"get_socketpath") == 0) {
356 printf(
"%s\n", socket_path);
361 }
else if (strcmp(long_options[option_index].name,
"shmlog-size") == 0 ||
362 strcmp(long_options[option_index].name,
"shmlog_size") == 0) {
369 }
else if (strcmp(long_options[option_index].name,
"restart") == 0) {
372 delete_layout_path =
true;
374 }
else if (strcmp(long_options[option_index].name,
"fake-outputs") == 0 ||
375 strcmp(long_options[option_index].name,
"fake_outputs") == 0) {
376 LOG(
"Initializing fake outputs: %s\n", optarg);
377 fake_outputs =
sstrdup(optarg);
382 fprintf(stderr,
"Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]);
383 fprintf(stderr,
"\n");
384 fprintf(stderr,
"\t-a disable autostart ('exec' lines in config)\n");
385 fprintf(stderr,
"\t-c <file> use the provided configfile instead\n");
386 fprintf(stderr,
"\t-C validate configuration file and exit\n");
387 fprintf(stderr,
"\t-d <level> enable debug output with the specified loglevel\n");
388 fprintf(stderr,
"\t-L <file> path to the serialized layout during restarts\n");
389 fprintf(stderr,
"\t-v display version and exit\n");
390 fprintf(stderr,
"\t-V enable verbose mode\n");
391 fprintf(stderr,
"\n");
392 fprintf(stderr,
"\t--force-xinerama\n"
393 "\tUse Xinerama instead of RandR.\n"
394 "\tThis option should only be used if you are stuck with the\n"
395 "\tnvidia closed source driver which does not support RandR.\n");
396 fprintf(stderr,
"\n");
397 fprintf(stderr,
"\t--get-socketpath\n"
398 "\tRetrieve the i3 IPC socket path from X11, print it, then exit.\n");
399 fprintf(stderr,
"\n");
400 fprintf(stderr,
"\t--shmlog-size <limit>\n"
401 "\tLimits the size of the i3 SHM log to <limit> bytes. Setting this\n"
402 "\tto 0 disables SHM logging entirely.\n"
404 fprintf(stderr,
"\n");
405 fprintf(stderr,
"If you pass plain text arguments, i3 will interpret them as a command\n"
406 "to send to a currently running i3 (like i3-msg). This allows you to\n"
407 "use nice and logical commands, such as:\n"
410 "\ti3 floating toggle\n"
426 LOG(
"Additional arguments passed. Sending them as a command to i3.\n");
427 char *payload = NULL;
428 while (optind < argc) {
430 payload =
sstrdup(argv[optind]);
433 sasprintf(&both,
"%s %s", payload, argv[optind]);
439 LOG(
"Command is: %s (%d bytes)\n", payload, strlen(payload));
442 ELOG(
"Could not get i3 IPC socket path\n");
446 int sockfd = socket(AF_LOCAL, SOCK_STREAM, 0);
448 err(EXIT_FAILURE,
"Could not create socket");
450 struct sockaddr_un addr;
451 memset(&addr, 0,
sizeof(
struct sockaddr_un));
452 addr.sun_family = AF_LOCAL;
453 strncpy(addr.sun_path, socket_path,
sizeof(addr.sun_path) - 1);
454 if (connect(sockfd, (
const struct sockaddr*)&addr,
sizeof(
struct sockaddr_un)) < 0)
455 err(EXIT_FAILURE,
"Could not connect to i3");
458 (uint8_t*)payload) == -1)
459 err(EXIT_FAILURE,
"IPC: write()");
461 uint32_t reply_length;
465 &reply_length, &reply)) != 0) {
467 err(EXIT_FAILURE,
"IPC: read()");
470 printf(
"%.*s\n", reply_length, reply);
479 struct rlimit limit = { RLIM_INFINITY, RLIM_INFINITY };
480 setrlimit(RLIMIT_CORE, &limit);
485 LOG(
"CORE DUMPS: You are running a development version of i3, so coredumps were automatically enabled (ulimit -c unlimited).\n");
486 if (getcwd(cwd,
sizeof(cwd)) != NULL)
487 LOG(
"CORE DUMPS: Your current working directory is \"%s\".\n", cwd);
489 if ((patternfd = open(
"/proc/sys/kernel/core_pattern", O_RDONLY)) >= 0) {
490 memset(cwd,
'\0',
sizeof(cwd));
491 if (read(patternfd, cwd,
sizeof(cwd)) > 0)
493 LOG(
"CORE DUMPS: Your core_pattern is: %s", cwd);
498 LOG(
"i3 (tree) version " I3_VERSION
" starting\n");
501 if (xcb_connection_has_error(
conn))
502 errx(EXIT_FAILURE,
"Cannot open display\n");
511 die(
"Could not initialize libev. Bad LIBEV_FLAGS?\n");
526 xcb_get_geometry_cookie_t gcookie = xcb_get_geometry(
conn,
root);
527 xcb_query_pointer_cookie_t pointercookie = xcb_query_pointer(
conn,
root);
531 LOG(
"Done checking configuration file. Exiting.\n");
543 uint32_t mask = XCB_CW_EVENT_MASK;
544 uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
545 XCB_EVENT_MASK_STRUCTURE_NOTIFY |
548 XCB_EVENT_MASK_POINTER_MOTION |
549 XCB_EVENT_MASK_PROPERTY_CHANGE |
550 XCB_EVENT_MASK_ENTER_WINDOW };
551 xcb_void_cookie_t cookie;
552 cookie = xcb_change_window_attributes_checked(
conn,
root, mask, values);
553 check_error(
conn, cookie,
"Another window manager seems to be running");
558 xcb_generic_error_t *error = xcb_request_check(
conn, colormap_cookie);
560 ELOG(
"Could not create ColorMap for 32 bit visual, falling back to X11 default.\n");
569 xcb_get_geometry_reply_t *greply = xcb_get_geometry_reply(
conn, gcookie, NULL);
570 if (greply == NULL) {
571 ELOG(
"Could not get geometry of the root window, exiting\n");
574 DLOG(
"root geometry reply: (%d, %d) %d x %d\n", greply->x, greply->y, greply->width, greply->height);
577 #define xmacro(atom) \
578 xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
579 #include "atoms.xmacro"
587 ELOG(
"ERROR: XOpenDisplay() failed, disabling libXcursor/XKB support\n");
590 }
else if (fcntl(ConnectionNumber(
xlibdpy), F_SETFD, FD_CLOEXEC) == -1) {
591 ELOG(
"Could not set FD_CLOEXEC on xkbdpy\n");
606 major = XkbMajorVersion,
607 minor = XkbMinorVersion;
609 if (fcntl(ConnectionNumber(
xkbdpy), F_SETFD, FD_CLOEXEC) == -1) {
610 fprintf(stderr,
"Could not set FD_CLOEXEC on xkbdpy\n");
616 fprintf(stderr,
"XKB not supported by X-server\n");
621 if (!XkbSelectEvents(
xkbdpy, XkbUseCoreKbd,
622 XkbMapNotifyMask | XkbStateNotifyMask,
623 XkbMapNotifyMask | XkbStateNotifyMask)) {
624 fprintf(stderr,
"Could not set XKB event mask\n");
630 #define xmacro(name) \
632 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
634 ELOG("Could not get atom " #name "\n"); \
637 A_ ## name = reply->atom; \
640 #include "atoms.xmacro"
654 bool needs_tree_init =
true;
656 LOG(
"Trying to restore the layout from %s...", layout_path);
658 if (delete_layout_path)
671 if (fake_outputs != NULL) {
681 DLOG(
"Checking for XRandR...\n");
685 xcb_query_pointer_reply_t *pointerreply;
687 if (!(pointerreply = xcb_query_pointer_reply(
conn, pointercookie, NULL))) {
688 ELOG(
"Could not query pointer position, using first screen\n");
691 DLOG(
"Pointer at %d, %d\n", pointerreply->root_x, pointerreply->root_y);
694 ELOG(
"ERROR: No screen at (%d, %d), starting on the first screen\n",
695 pointerreply->root_x, pointerreply->root_y);
706 if (ipc_socket == -1) {
707 ELOG(
"Could not create the IPC socket, IPC disabled\n");
710 struct ev_io *ipc_io =
scalloc(
sizeof(
struct ev_io));
720 ELOG(
"socket activation: Error in sd_listen_fds\n");
722 DLOG(
"socket activation: no sockets passed\n");
728 DLOG(
"socket activation: also listening on fd %d\n", fd);
733 if ((flags = fcntl(fd, F_GETFD)) < 0 ||
734 fcntl(fd, F_SETFD, flags & ~FD_CLOEXEC) < 0) {
735 ELOG(
"Could not disable FD_CLOEXEC on fd %d\n", fd);
738 struct ev_io *ipc_io =
scalloc(
sizeof(
struct ev_io));
747 struct ev_io *xcb_watcher =
scalloc(
sizeof(
struct ev_io));
748 struct ev_io *xkb =
scalloc(
sizeof(
struct ev_io));
749 struct ev_check *xcb_check =
scalloc(
sizeof(
struct ev_check));
750 struct ev_prepare *xcb_prepare =
scalloc(
sizeof(
struct ev_prepare));
768 ev_prepare_start(
main_loop, xcb_prepare);
774 struct sigaction action;
777 action.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
778 sigemptyset(&action.sa_mask);
780 if (!disable_signalhandler)
784 if (sigaction(SIGQUIT, &action, NULL) == -1 ||
785 sigaction(SIGILL, &action, NULL) == -1 ||
786 sigaction(SIGABRT, &action, NULL) == -1 ||
787 sigaction(SIGFPE, &action, NULL) == -1 ||
788 sigaction(SIGSEGV, &action, NULL) == -1)
789 ELOG(
"Could not setup signal handler");
793 if (sigaction(SIGHUP, &action, NULL) == -1 ||
794 sigaction(SIGINT, &action, NULL) == -1 ||
795 sigaction(SIGALRM, &action, NULL) == -1 ||
796 sigaction(SIGUSR1, &action, NULL) == -1 ||
797 sigaction(SIGUSR2, &action, NULL) == -1)
798 ELOG(
"Could not setup signal handler");
802 signal(SIGPIPE, SIG_IGN);
816 LOG(
"auto-starting (always!) %s\n", exec_always->
command);
824 sasprintf(&command,
"%s --bar_id=%s --socket=\"%s\"",
827 LOG(
"Starting bar process: %s\n", command);