openbox/openbox.c (raw)
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#include "openbox.h" #include "event.h" #include "client.h" #include "dispatch.h" #include "xerror.h" #include "prop.h" #include "screen.h" #include "focus.h" #include "extensions.h" #include "gettext.h" #include "grab.h" #include "engine.h" #include "themerc.h" #include "plugin.h" #include "timer.h" #include "../render/render.h" #include "../render/font.h" #ifdef HAVE_FCNTL_H # include <fcntl.h> #endif #ifdef HAVE_SYS_SELECT_H # include <sys/select.h> #endif #ifdef HAVE_SIGNAL_H # include <signal.h> #endif #ifdef HAVE_STDLIB_H # include <stdlib.h> #endif #ifdef HAVE_SYS_WAIT_H # include <sys/types.h> # include <sys/wait.h> #endif #ifdef HAVE_LOCALE_H # include <locale.h> #endif #ifdef HAVE_UNISTD_H # include <unistd.h> #endif #include <X11/cursorfont.h> Display *ob_display = NULL; int ob_screen; Window ob_root; State ob_state; gboolean ob_shutdown = FALSE; gboolean ob_restart = FALSE; char *ob_restart_path = NULL; gboolean ob_remote = FALSE; gboolean ob_sync = TRUE; Cursors ob_cursors; void signal_handler(const ObEvent *e, void *data); int main(int argc, char **argv) { struct sigaction action; sigset_t sigset; ob_state = State_Starting; /* initialize the locale */ if (!setlocale(LC_ALL, "")) g_warning("Couldn't set locale from environment.\n"); bindtextdomain(PACKAGE, LOCALEDIR); bind_textdomain_codeset(PACKAGE, "UTF-8"); textdomain(PACKAGE); /* start our event dispatcher and register for signals */ dispatch_startup(); dispatch_register(Event_Signal, signal_handler, NULL); /* set up signal handler */ sigemptyset(&sigset); action.sa_handler = dispatch_signal; action.sa_mask = sigset; action.sa_flags = SA_NOCLDSTOP | SA_NODEFER; sigaction(SIGUSR1, &action, (struct sigaction *) NULL); sigaction(SIGPIPE, &action, (struct sigaction *) NULL); sigaction(SIGSEGV, &action, (struct sigaction *) NULL); sigaction(SIGFPE, &action, (struct sigaction *) NULL); sigaction(SIGTERM, &action, (struct sigaction *) NULL); sigaction(SIGINT, &action, (struct sigaction *) NULL); sigaction(SIGHUP, &action, (struct sigaction *) NULL); sigaction(SIGCHLD, &action, (struct sigaction *) NULL); /* anything that died while we were restarting won't give us a SIGCHLD */ while (waitpid(-1, NULL, WNOHANG) > 0); /* XXX parse out command line args */ (void)argc;(void)argv; ob_display = XOpenDisplay(NULL); if (ob_display == NULL) { /* print a message and exit */ g_critical("Failed to open the display."); exit(1); } if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1) { /* print a message and exit */ g_critical("Failed to set display as close-on-exec."); exit(1); } ob_screen = DefaultScreen(ob_display); ob_root = RootWindow(ob_display, ob_screen); /* XXX fork self onto other screens */ XSynchronize(ob_display, ob_sync); /* check for locale support */ if (!XSupportsLocale()) g_warning("X server does not support locale."); if (!XSetLocaleModifiers("")) g_warning("Cannot set locale modifiers for the X server."); /* set our error handler */ XSetErrorHandler(xerror_handler); /* set the DISPLAY environment variable for any lauched children, to the display we're using, so they open in the right place. */ putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display))); ob_cursors.left_ptr = XCreateFontCursor(ob_display, XC_left_ptr); ob_cursors.ll_angle = XCreateFontCursor(ob_display, XC_ll_angle); ob_cursors.lr_angle = XCreateFontCursor(ob_display, XC_lr_angle); prop_startup(); /* get atoms values for the display */ extensions_query_all(); /* find which extensions are present */ if (screen_annex()) { /* it will be ours! */ timer_startup(); render_startup(); font_startup(); themerc_startup(); engine_startup(themerc_engine); event_startup(); screen_startup(); focus_startup(); client_startup(); grab_startup(); plugin_startup(); /* XXX load all plugins!! */ plugin_open("focus"); plugin_open("keyboard"); plugin_open("mouse"); /* get all the existing windows */ client_manage_all(); ob_state = State_Running; while (!ob_shutdown) event_loop(); ob_state = State_Exiting; client_unmanage_all(); plugin_shutdown(); /* calls all the plugins' shutdown functions */ grab_shutdown(); client_shutdown(); focus_shutdown(); screen_shutdown(); event_shutdown(); engine_shutdown(); themerc_shutdown(); render_shutdown(); timer_shutdown(); } dispatch_shutdown(); XCloseDisplay(ob_display); if (ob_restart) { if (ob_restart_path != NULL) { int argcp; char **argvp; GError *err; /* run other shit */ if (g_shell_parse_argv(ob_restart_path, &argcp, &argvp, &err)) execvp(argvp[0], argvp); g_strfreev(argvp); } /* re-run me */ execvp(argv[0], argv); /* try how we were run */ execlp("ob3", "ob3", NULL); /* try this as a last resort */ } return 0; } void signal_handler(const ObEvent *e, void *data) { int s; s = e->data.s.signal; switch (s) { case SIGUSR1: g_message("Caught SIGUSR1 signal. Restarting."); ob_shutdown = ob_restart = TRUE; break; case SIGCHLD: wait(NULL); break; case SIGHUP: case SIGINT: case SIGTERM: case SIGPIPE: g_message("Caught signal %d. Exiting.", s); ob_shutdown = TRUE; break; case SIGFPE: case SIGSEGV: g_error("Caught signal %d. Aborting and dumping core.", s); } } |