-#undef I3__FILE__
-#define I3__FILE__ "main.c"
/*
* vim:ts=4:sw=4:expandtab
*
* main.c: Initialization, main loop
*
*/
+#include "all.h"
+
#include <ev.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <libgen.h>
-#include "all.h"
#include "shmlog.h"
+#ifdef I3_ASAN_ENABLED
+#include <sanitizer/lsan_interface.h>
+#endif
+
#include "sd-daemon.h"
/* The original value of RLIMIT_CORE when i3 was started. We need to restore
* RLIM_INFINITY for i3 debugging versions. */
struct rlimit original_rlimit_core;
-/** The number of file descriptors passed via socket activation. */
+/* The number of file descriptors passed via socket activation. */
int listen_fds;
-/* We keep the xcb_check watcher around to be able to enable and disable it
+/* We keep the xcb_prepare watcher around to be able to enable and disable it
* temporarily for drag_pointer(). */
-static struct ev_check *xcb_check;
-
-extern Con *focused;
+static struct ev_prepare *xcb_prepare;
char **start_argv;
* pixmaps. Will use 32 bit depth and an appropriate visual, if available,
* otherwise the root window’s default (usually 24 bit TrueColor). */
uint8_t root_depth;
-xcb_visualid_t visual_id;
+xcb_visualtype_t *visual_type;
xcb_colormap_t colormap;
struct ev_loop *main_loop;
/* We hope that those are supported and set them to true */
bool xcursor_supported = true;
+bool xkb_supported = true;
+
+bool force_xinerama = false;
/*
- * This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
+ * This callback is only a dummy, see xcb_prepare_cb.
* See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop
*
*/
static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
- /* empty, because xcb_prepare_cb and xcb_check_cb are used */
+ /* empty, because xcb_prepare_cb are used */
}
/*
- * Flush before blocking (and waiting for new events)
+ * Called just before the event loop sleeps. Ensures xcb’s incoming and outgoing
+ * queues are empty so that any activity will trigger another event loop
+ * iteration, and hence another xcb_prepare_cb invocation.
*
*/
static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
- xcb_flush(conn);
-}
-
-/*
- * Instead of polling the X connection socket we leave this to
- * xcb_poll_for_event() which knows better than we can ever know.
- *
- */
-static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
+ /* Process all queued (and possibly new) events before the event loop
+ sleeps. */
xcb_generic_event_t *event;
while ((event = xcb_poll_for_event(conn)) != NULL) {
free(event);
}
+
+ /* Flush all queued events to X11. */
+ xcb_flush(conn);
}
/*
void main_set_x11_cb(bool enable) {
DLOG("Setting main X11 callback to enabled=%d\n", enable);
if (enable) {
- ev_check_start(main_loop, xcb_check);
+ ev_prepare_start(main_loop, xcb_prepare);
/* Trigger the watcher explicitly to handle all remaining X11 events.
* drag_pointer()’s event handler exits in the middle of the loop. */
- ev_feed_event(main_loop, xcb_check, 0);
+ ev_feed_event(main_loop, xcb_prepare, 0);
} else {
- ev_check_stop(main_loop, xcb_check);
+ ev_prepare_stop(main_loop, xcb_prepare);
}
}
*
*/
static void i3_exit(void) {
+ if (*shmlogname != '\0') {
+ fprintf(stderr, "Closing SHM log \"%s\"\n", shmlogname);
+ fflush(stderr);
+ shm_unlink(shmlogname);
+ }
+ ipc_shutdown(SHUTDOWN_REASON_EXIT);
+ unlink(config.ipc_socket_path);
+ xcb_disconnect(conn);
+
/* We need ev >= 4 for the following code. Since it is not *that* important (it
* only makes sure that there are no i3-nagbar instances left behind) we still
* support old systems with libev 3. */
ev_loop_destroy(main_loop);
#endif
- if (*shmlogname != '\0') {
- fprintf(stderr, "Closing SHM log \"%s\"\n", shmlogname);
- fflush(stderr);
- shm_unlink(shmlogname);
- }
+#ifdef I3_ASAN_ENABLED
+ __lsan_do_leak_check();
+#endif
}
/*
- * (One-shot) Handler for all signals with default action "Term", see signal(7)
+ * (One-shot) Handler for all signals with default action "Core", see signal(7)
*
* Unlinks the SHM log and re-raises the signal.
*
*/
-static void handle_signal(int sig, siginfo_t *info, void *data) {
+static void handle_core_signal(int sig, siginfo_t *info, void *data) {
if (*shmlogname != '\0') {
shm_unlink(shmlogname);
}
raise(sig);
}
+/*
+ * (One-shot) Handler for all signals with default action "Term", see signal(7)
+ *
+ * Exits the program gracefully.
+ *
+ */
+static void handle_term_signal(struct ev_loop *loop, ev_signal *signal, int revents) {
+ /* We exit gracefully here in the sense that cleanup handlers
+ * installed via atexit are invoked. */
+ exit(128 + signal->signum);
+}
+
+/*
+ * Set up handlers for all signals with default action "Term", see signal(7)
+ *
+ */
+static void setup_term_handlers(void) {
+ static struct ev_signal signal_watchers[6];
+ size_t num_watchers = sizeof(signal_watchers) / sizeof(signal_watchers[0]);
+
+ /* We have to rely on libev functionality here and should not use
+ * sigaction handlers because we need to invoke the exit handlers
+ * and cannot do so from an asynchronous signal handling context as
+ * not all code triggered during exit is signal safe (and exiting
+ * the main loop from said handler is not easily possible). libev's
+ * signal handlers does not impose such a constraint on us. */
+ ev_signal_init(&signal_watchers[0], handle_term_signal, SIGHUP);
+ ev_signal_init(&signal_watchers[1], handle_term_signal, SIGINT);
+ ev_signal_init(&signal_watchers[2], handle_term_signal, SIGALRM);
+ ev_signal_init(&signal_watchers[3], handle_term_signal, SIGTERM);
+ ev_signal_init(&signal_watchers[4], handle_term_signal, SIGUSR1);
+ ev_signal_init(&signal_watchers[5], handle_term_signal, SIGUSR1);
+ for (size_t i = 0; i < num_watchers; i++) {
+ ev_signal_start(main_loop, &signal_watchers[i]);
+ /* The signal handlers should not block ev_run from returning
+ * and so none of the signal handlers should hold a reference to
+ * the main loop. */
+ ev_unref(main_loop);
+ }
+}
+
int main(int argc, char *argv[]) {
/* Keep a symbol pointing to the I3_VERSION string constant so that we have
* it in gdb backtraces. */
- const char *_i3_version __attribute__((unused)) = i3_version;
+ static const char *_i3_version __attribute__((used)) = I3_VERSION;
char *override_configpath = NULL;
bool autostart = true;
char *layout_path = NULL;
bool delete_layout_path = false;
- bool force_xinerama = false;
+ bool disable_randr15 = false;
char *fake_outputs = NULL;
bool disable_signalhandler = false;
bool only_check_config = false;
{"restart", required_argument, 0, 0},
{"force-xinerama", no_argument, 0, 0},
{"force_xinerama", no_argument, 0, 0},
+ {"disable-randr15", no_argument, 0, 0},
+ {"disable_randr15", no_argument, 0, 0},
{"disable-signalhandler", no_argument, 0, 0},
{"shmlog-size", required_argument, 0, 0},
{"shmlog_size", required_argument, 0, 0},
"Please check if your driver really does not support RandR "
"and disable this option as soon as you can.\n");
break;
+ } else if (strcmp(long_options[option_index].name, "disable-randr15") == 0 ||
+ strcmp(long_options[option_index].name, "disable_randr15") == 0) {
+ disable_randr15 = true;
+ break;
} else if (strcmp(long_options[option_index].name, "disable-signalhandler") == 0) {
disable_signalhandler = true;
break;
memset(&addr, 0, sizeof(struct sockaddr_un));
addr.sun_family = AF_LOCAL;
strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path) - 1);
+ FREE(socket_path);
if (connect(sockfd, (const struct sockaddr *)&addr, sizeof(struct sockaddr_un)) < 0)
err(EXIT_FAILURE, "Could not connect to i3");
- if (ipc_send_message(sockfd, strlen(payload), I3_IPC_MESSAGE_TYPE_COMMAND,
+ if (ipc_send_message(sockfd, strlen(payload), I3_IPC_MESSAGE_TYPE_RUN_COMMAND,
(uint8_t *)payload) == -1)
err(EXIT_FAILURE, "IPC: write()");
+ FREE(payload);
uint32_t reply_length;
uint32_t reply_type;
err(EXIT_FAILURE, "IPC: read()");
return 1;
}
- if (reply_type != I3_IPC_MESSAGE_TYPE_COMMAND)
- errx(EXIT_FAILURE, "IPC: received reply of type %d but expected %d (COMMAND)", reply_type, I3_IPC_MESSAGE_TYPE_COMMAND);
+ if (reply_type != I3_IPC_REPLY_TYPE_COMMAND)
+ errx(EXIT_FAILURE, "IPC: received reply of type %d but expected %d (COMMAND)", reply_type, I3_IPC_REPLY_TYPE_COMMAND);
printf("%.*s\n", reply_length, reply);
+ FREE(reply);
return 0;
}
memset(cwd, '\0', cwd_size);
if (read(patternfd, cwd, cwd_size) > 0)
/* a trailing newline is included in cwd */
- LOG("CORE DUMPS: Your core_pattern is: \"%s\".\n", cwd);
+ LOG("CORE DUMPS: Your core_pattern is: %s", cwd);
close(patternfd);
}
free(cwd);
#include "atoms.xmacro"
#undef xmacro
- /* By default, we use the same depth and visual as the root window, which
- * usually is TrueColor (24 bit depth) and the corresponding visual.
- * However, we also check if a 32 bit depth and visual are available (for
- * transparency) and use it if so. */
root_depth = root_screen->root_depth;
- visual_id = root_screen->root_visual;
colormap = root_screen->default_colormap;
+ visual_type = xcb_aux_find_visual_by_attrs(root_screen, -1, 32);
+ if (visual_type != NULL) {
+ root_depth = xcb_aux_get_depth_of_visual(root_screen, visual_type->visual_id);
+ colormap = xcb_generate_id(conn);
+
+ xcb_void_cookie_t cm_cookie = xcb_create_colormap_checked(conn,
+ XCB_COLORMAP_ALLOC_NONE,
+ colormap,
+ root,
+ visual_type->visual_id);
+
+ xcb_generic_error_t *error = xcb_request_check(conn, cm_cookie);
+ if (error != NULL) {
+ ELOG("Could not create colormap. Error code: %d\n", error->error_code);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ visual_type = get_visualtype(root_screen);
+ }
- DLOG("root_depth = %d, visual_id = 0x%08x.\n", root_depth, visual_id);
- DLOG("root_screen->height_in_pixels = %d, root_screen->height_in_millimeters = %d, dpi = %d\n",
- root_screen->height_in_pixels, root_screen->height_in_millimeters,
- (int)((double)root_screen->height_in_pixels * 25.4 / (double)root_screen->height_in_millimeters));
+ init_dpi();
+
+ DLOG("root_depth = %d, visual_id = 0x%08x.\n", root_depth, visual_type->visual_id);
+ DLOG("root_screen->height_in_pixels = %d, root_screen->height_in_millimeters = %d\n",
+ root_screen->height_in_pixels, root_screen->height_in_millimeters);
DLOG("One logical pixel corresponds to %d physical pixels on this display.\n", logical_px(1));
xcb_get_geometry_cookie_t gcookie = xcb_get_geometry(conn, root);
config.ipc_socket_path = sstrdup(config.ipc_socket_path);
}
+ if (config.force_xinerama) {
+ force_xinerama = true;
+ }
+
xcb_void_cookie_t cookie;
cookie = xcb_change_window_attributes_checked(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){ROOT_EVENT_MASK});
- check_error(conn, cookie, "Another window manager seems to be running");
+ xcb_generic_error_t *error = xcb_request_check(conn, cookie);
+ if (error != NULL) {
+ ELOG("Another window manager seems to be running (X error %d)\n", error->error_code);
+#ifdef I3_ASAN_ENABLED
+ __lsan_do_leak_check();
+#endif
+ return 1;
+ }
xcb_get_geometry_reply_t *greply = xcb_get_geometry_reply(conn, gcookie, NULL);
if (greply == NULL) {
const xcb_query_extension_reply_t *extreply;
extreply = xcb_get_extension_data(conn, &xcb_xkb_id);
+ xkb_supported = extreply->present;
if (!extreply->present) {
DLOG("xkb is not present on this server\n");
} else {
/* Setting both, XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE and
* XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED, will lead to the
* X server sending us the full XKB state in KeyPress and KeyRelease:
- * https://sources.debian.net/src/xorg-server/2:1.17.2-1.1/xkb/xkbEvents.c/?hl=927#L927
+ * https://cgit.freedesktop.org/xorg/xserver/tree/xkb/xkbEvents.c?h=xorg-server-1.20.0#n927
+ *
+ * XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT enable detectable autorepeat:
+ * https://www.x.org/releases/current/doc/kbproto/xkbproto.html#Detectable_Autorepeat
+ * This affects bindings using the --release flag: instead of getting multiple KeyRelease
+ * events we get only one event when the key is physically released by the user.
*/
+ const uint32_t mask = XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE |
+ XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED |
+ XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT;
xcb_xkb_per_client_flags_reply_t *pcf_reply;
/* The last three parameters are unset because they are only relevant
* when using a feature called “automatic reset of boolean controls”:
- * http://www.x.org/releases/X11R7.7/doc/kbproto/xkbproto.html#Automatic_Reset_of_Boolean_Controls
+ * https://www.x.org/releases/X11R7.7/doc/kbproto/xkbproto.html#Automatic_Reset_of_Boolean_Controls
* */
pcf_reply = xcb_xkb_per_client_flags_reply(
conn,
xcb_xkb_per_client_flags(
conn,
XCB_XKB_ID_USE_CORE_KBD,
- XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE | XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED,
- XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE | XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED,
+ mask,
+ mask,
0 /* uint32_t ctrlsToChange */,
0 /* uint32_t autoCtrls */,
0 /* uint32_t autoCtrlsValues */),
NULL);
- if (pcf_reply == NULL ||
- !(pcf_reply->value & XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE)) {
- ELOG("Could not set XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE\n");
- }
- if (pcf_reply == NULL ||
- !(pcf_reply->value & XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED)) {
- ELOG("Could not set XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED\n");
- }
+
+#define PCF_REPLY_ERROR(_value) \
+ do { \
+ if (pcf_reply == NULL || !(pcf_reply->value & (_value))) { \
+ ELOG("Could not set " #_value "\n"); \
+ } \
+ } while (0)
+
+ PCF_REPLY_ERROR(XCB_XKB_PER_CLIENT_FLAG_GRABS_USE_XKB_STATE);
+ PCF_REPLY_ERROR(XCB_XKB_PER_CLIENT_FLAG_LOOKUP_STATE_WHEN_GRABBED);
+ PCF_REPLY_ERROR(XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT);
+
free(pcf_reply);
xkb_base = extreply->first_event;
}
grab_all_keys(conn);
bool needs_tree_init = true;
- if (layout_path) {
+ if (layout_path != NULL) {
LOG("Trying to restore the layout from \"%s\".\n", layout_path);
needs_tree_init = !tree_restore(layout_path, greply);
if (delete_layout_path) {
* sockets) left. */
rmdir(dir);
}
- free(layout_path);
}
if (needs_tree_init)
tree_init(greply);
fake_outputs_init(fake_outputs);
FREE(fake_outputs);
config.fake_outputs = NULL;
- } else if (force_xinerama || config.force_xinerama) {
+ } else if (force_xinerama) {
/* Force Xinerama (for drivers which don't support RandR yet, esp. the
* nVidia binary graphics driver), when specified either in the config
* file or on command-line */
xinerama_init();
} else {
DLOG("Checking for XRandR...\n");
- randr_init(&randr_base);
+ randr_init(&randr_base, disable_randr15 || config.disable_randr15);
}
+ /* We need to force disabling outputs which have been loaded from the
+ * layout file but are no longer active. This can happen if the output has
+ * been disabled in the short time between writing the restart layout file
+ * and restarting i3. See #2326. */
+ if (layout_path != NULL && randr_base > -1) {
+ Con *con;
+ TAILQ_FOREACH(con, &(croot->nodes_head), nodes) {
+ Output *output;
+ TAILQ_FOREACH(output, &outputs, outputs) {
+ if (output->active || strcmp(con->name, output_primary_name(output)) != 0)
+ continue;
+
+ /* This will correctly correlate the output with its content
+ * container. We need to make the connection to properly
+ * disable the output. */
+ if (output->con == NULL) {
+ output_init_con(output);
+ output->changed = false;
+ }
+
+ output->to_be_disabled = true;
+ randr_disable_output(output);
+ }
+ }
+ }
+ FREE(layout_path);
+
scratchpad_fix_resolution();
xcb_query_pointer_reply_t *pointerreply;
output = get_first_output();
}
- con_focus(con_descend_focused(output_get_content(output->con)));
+ con_activate(con_descend_focused(output_get_content(output->con)));
+ free(pointerreply);
}
tree_render();
ewmh_update_desktop_viewport();
struct ev_io *xcb_watcher = scalloc(1, sizeof(struct ev_io));
- xcb_check = scalloc(1, sizeof(struct ev_check));
- struct ev_prepare *xcb_prepare = scalloc(1, sizeof(struct ev_prepare));
+ xcb_prepare = scalloc(1, sizeof(struct ev_prepare));
ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
ev_io_start(main_loop, xcb_watcher);
- ev_check_init(xcb_check, xcb_check_cb);
- ev_check_start(main_loop, xcb_check);
-
ev_prepare_init(xcb_prepare, xcb_prepare_cb);
ev_prepare_start(main_loop, xcb_prepare);
(uint32_t[]){XCB_GX_COPY, ~0, XCB_FILL_STYLE_SOLID, XCB_SUBWINDOW_MODE_INCLUDE_INFERIORS});
xcb_copy_area(conn, root->root, pixmap, gc, 0, 0, 0, 0, width, height);
- xcb_change_window_attributes_checked(conn, root->root, XCB_CW_BACK_PIXMAP, (uint32_t[]){pixmap});
+ xcb_change_window_attributes(conn, root->root, XCB_CW_BACK_PIXMAP, (uint32_t[]){pixmap});
xcb_flush(conn);
xcb_free_gc(conn, gc);
xcb_free_pixmap(conn, pixmap);
}
- struct sigaction action;
-
- action.sa_sigaction = handle_signal;
- action.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
- sigemptyset(&action.sa_mask);
+#if defined(__OpenBSD__)
+ if (pledge("stdio rpath wpath cpath proc exec unix", NULL) == -1)
+ err(EXIT_FAILURE, "pledge");
+#endif
if (!disable_signalhandler)
setup_signal_handler();
else {
+ struct sigaction action;
+
+ action.sa_sigaction = handle_core_signal;
+ action.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
+ sigemptyset(&action.sa_mask);
+
/* Catch all signals with default action "Core", see signal(7) */
if (sigaction(SIGQUIT, &action, NULL) == -1 ||
sigaction(SIGILL, &action, NULL) == -1 ||
ELOG("Could not setup signal handler.\n");
}
- /* Catch all signals with default action "Term", see signal(7) */
- if (sigaction(SIGHUP, &action, NULL) == -1 ||
- sigaction(SIGINT, &action, NULL) == -1 ||
- sigaction(SIGALRM, &action, NULL) == -1 ||
- sigaction(SIGUSR1, &action, NULL) == -1 ||
- sigaction(SIGUSR2, &action, NULL) == -1)
- ELOG("Could not setup signal handler.\n");
-
+ setup_term_handlers();
/* Ignore SIGPIPE to survive errors when an IPC client disconnects
* while we are sending them a message */
signal(SIGPIPE, SIG_IGN);
/* Autostarting exec-lines */
if (autostart) {
- struct Autostart *exec;
- TAILQ_FOREACH(exec, &autostarts, autostarts) {
+ while (!TAILQ_EMPTY(&autostarts)) {
+ struct Autostart *exec = TAILQ_FIRST(&autostarts);
+
LOG("auto-starting %s\n", exec->command);
start_application(exec->command, exec->no_startup_id);
+
+ FREE(exec->command);
+ TAILQ_REMOVE(&autostarts, exec, autostarts);
+ FREE(exec);
}
}
/* Autostarting exec_always-lines */
- struct Autostart *exec_always;
- TAILQ_FOREACH(exec_always, &autostarts_always, autostarts_always) {
+ while (!TAILQ_EMPTY(&autostarts_always)) {
+ struct Autostart *exec_always = TAILQ_FIRST(&autostarts_always);
+
LOG("auto-starting (always!) %s\n", exec_always->command);
start_application(exec_always->command, exec_always->no_startup_id);
+
+ FREE(exec_always->command);
+ TAILQ_REMOVE(&autostarts_always, exec_always, autostarts_always);
+ FREE(exec_always);
}
/* Start i3bar processes for all configured bars */
Barconfig *barconfig;
TAILQ_FOREACH(barconfig, &barconfigs, configs) {
char *command = NULL;
- sasprintf(&command, "%s --bar_id=%s --socket=\"%s\"",
+ sasprintf(&command, "%s %s --bar_id=%s --socket=\"%s\"",
barconfig->i3bar_command ? barconfig->i3bar_command : "i3bar",
+ barconfig->verbose ? "-V" : "",
barconfig->id, current_socketpath);
LOG("Starting bar process: %s\n", command);
start_application(command, true);
free(command);
}
- /* Make sure to destroy the event loop to invoke the cleeanup callbacks
+ /* Make sure to destroy the event loop to invoke the cleanup callbacks
* when calling exit() */
atexit(i3_exit);
projects / i3 / i3 / blobdiff