Dogcows Code - chaz/openbox/blob - openbox/openbox.c

   1 #include "openbox.h"
   2 #include "event.h"
   3 #include "client.h"
   4 #include "xerror.h"
   5 #include "prop.h"
   6 #include "screen.h"
   7 #include "focus.h"
   8 #include "extensions.h"
   9 #include "gettext.h"
  10 #include "keyboard.h"
  11 #include "pointer.h"
  12 #include "engine.h"
  13 #include "python.h"
  14 #include "hooks.h"
  15 #include "clientwrap.h"
  16 #include "openboxwrap.h"
  17 #include "configwrap.h"
  18 #include "themerc.h"
  19 #include "timer.h"
  20 #include "../render/render.h"
  21
  22 #ifdef HAVE_FCNTL_H
  23 #  include <fcntl.h>
  24 #endif
  25 #ifdef HAVE_SYS_SELECT_H
  26 #  include <sys/select.h>
  27 #endif
  28 #ifdef HAVE_SIGNAL_H
  29 #  include <signal.h>
  30 #endif
  31 #ifdef HAVE_STDLIB_H
  32 #  include <stdlib.h>
  33 #endif
  34 #ifdef HAVE_SYS_WAIT_H
  35 #  include <sys/types.h>
  36 #  include <sys/wait.h>
  37 #endif
  38 #ifdef HAVE_LOCALE_H
  39 #  include <locale.h>
  40 #endif
  41
  42 #include <X11/cursorfont.h>
  43
  44 Display *ob_display  = NULL;
  45 int      ob_screen;
  46 Window   ob_root;
  47 State    ob_state;
  48 gboolean ob_shutdown = FALSE;
  49 gboolean ob_restart  = FALSE;
  50 char    *ob_restart_path = NULL;
  51 gboolean ob_remote   = FALSE;
  52 gboolean ob_sync     = TRUE;
  53 Cursors  ob_cursors;
  54
  55 void signal_handler(int signal);
  56
  57 int main(int argc, char **argv)
  58 {
  59     struct sigaction action;
  60     sigset_t sigset;
  61
  62     ob_state = State_Starting;
  63
  64     /* initialize the locale */
  65     if (!setlocale(LC_ALL, ""))
  66         g_warning("Couldn't set locale from environment.\n");
  67     bindtextdomain(PACKAGE, LOCALEDIR);
  68     bind_textdomain_codeset(PACKAGE, "UTF-8");
  69     textdomain(PACKAGE);
  70
  71     /* set up signal handler */
  72     sigemptyset(&sigset);
  73     action.sa_handler = signal_handler;
  74     action.sa_mask = sigset;
  75     action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
  76     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
  77     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
  78     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
  79     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
  80     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
  81     sigaction(SIGINT, &action, (struct sigaction *) NULL);
  82     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
  83     sigaction(SIGCHLD, &action, (struct sigaction *) NULL);
  84
  85     /* anything that died while we were restarting won't give us a SIGCHLD */
  86     while (waitpid(-1, NULL, WNOHANG) > 0);
  87
  88     /* XXX parse out command line args */
  89     (void)argc;(void)argv;
  90
  91     ob_display = XOpenDisplay(NULL);
  92     if (ob_display == NULL) {
  93         /* print a message and exit */
  94         g_critical("Failed to open the display.");
  95         exit(1);
  96     }
  97     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1) {
  98         /* print a message and exit */
  99         g_critical("Failed to set display as close-on-exec.");
 100         exit(1);
 101     }
 102
 103     ob_screen = DefaultScreen(ob_display);
 104     ob_root = RootWindow(ob_display, ob_screen);
 105
 106     /* XXX fork self onto other screens */
 107
 108     XSynchronize(ob_display, ob_sync);
 109
 110     /* check for locale support */
 111     if (!XSupportsLocale())
 112         g_warning("X server does not support locale.");
 113     if (!XSetLocaleModifiers(""))
 114         g_warning("Cannot set locale modifiers for the X server.");
 115
 116     /* set our error handler */
 117     XSetErrorHandler(xerror_handler);
 118
 119     /* set the DISPLAY environment variable for any lauched children, to the
 120        display we're using, so they open in the right place. */
 121     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 122
 123     ob_cursors.left_ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 124     ob_cursors.ll_angle = XCreateFontCursor(ob_display, XC_ll_angle);
 125     ob_cursors.lr_angle = XCreateFontCursor(ob_display, XC_lr_angle);
 126
 127     prop_startup(); /* get atoms values for the display */
 128     extensions_query_all(); /* find which extensions are present */
 129
 130     if (screen_annex()) { /* it will be ours! */
 131         timer_startup();
 132         render_startup();
 133         font_startup();
 134         themerc_startup();
 135         engine_startup(themerc_engine);
 136         python_startup();
 137         configwrap_startup();
 138         openboxwrap_startup();
 139         clientwrap_startup();
 140         hooks_startup();
 141         event_startup();
 142         screen_startup();
 143         focus_startup();
 144         client_startup();
 145         keyboard_startup();
 146         pointer_startup();
 147
 148         /* load the user's settings */
 149         if (!python_import("rc"))
 150             g_warning("ERROR LOADING RC FILE");
 151
 152         HOOKFIRE(startup, "()");
 153
 154         /* get all the existing windows */
 155         client_manage_all();
 156
 157         ob_state = State_Running;
 158         while (!ob_shutdown) {
 159             event_loop();
 160         }
 161         ob_state = State_Exiting;
 162
 163         client_unmanage_all();
 164
 165         HOOKFIRE(shutdown, "()");
 166
 167         pointer_shutdown();
 168         keyboard_shutdown();
 169         client_shutdown();
 170         screen_shutdown();
 171         event_shutdown();
 172         hooks_shutdown();
 173         clientwrap_shutdown();
 174         openboxwrap_shutdown();
 175         configwrap_shutdown();
 176         python_shutdown();
 177         engine_shutdown();
 178         themerc_shutdown();
 179         render_shutdown();
 180         timer_shutdown();
 181     }
 182
 183     XCloseDisplay(ob_display);
 184
 185     /* XXX if (ob_restart) */
 186
 187     return 0;
 188 }
 189
 190 void signal_handler(int signal)
 191 {
 192     switch (signal) {
 193     case SIGUSR1:
 194         g_message("Caught SIGUSR1 signal. Restarting.");
 195         ob_shutdown = ob_restart = TRUE;
 196         break;
 197
 198     case SIGCHLD:
 199         wait(NULL);
 200         break;
 201
 202     case SIGHUP:
 203     case SIGINT:
 204     case SIGTERM:
 205     case SIGPIPE:
 206         g_message("Caught signal %d. Exiting.", signal);
 207         ob_shutdown = TRUE;
 208         break;
 209
 210     case SIGFPE:
 211     case SIGSEGV:
 212         g_error("Caught signal %d. Aborting and dumping core.", signal);
 213     }
 214 }