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 #include "../render/font.h"
  22
  23 #ifdef HAVE_FCNTL_H
  24 #  include <fcntl.h>
  25 #endif
  26 #ifdef HAVE_SYS_SELECT_H
  27 #  include <sys/select.h>
  28 #endif
  29 #ifdef HAVE_SIGNAL_H
  30 #  include <signal.h>
  31 #endif
  32 #ifdef HAVE_STDLIB_H
  33 #  include <stdlib.h>
  34 #endif
  35 #ifdef HAVE_SYS_WAIT_H
  36 #  include <sys/types.h>
  37 #  include <sys/wait.h>
  38 #endif
  39 #ifdef HAVE_LOCALE_H
  40 #  include <locale.h>
  41 #endif
  42
  43 #include <X11/cursorfont.h>
  44
  45 Display *ob_display  = NULL;
  46 int      ob_screen;
  47 Window   ob_root;
  48 State    ob_state;
  49 gboolean ob_shutdown = FALSE;
  50 gboolean ob_restart  = FALSE;
  51 char    *ob_restart_path = NULL;
  52 gboolean ob_remote   = FALSE;
  53 gboolean ob_sync     = TRUE;
  54 Cursors  ob_cursors;
  55
  56 void signal_handler(int signal);
  57
  58 int main(int argc, char **argv)
  59 {
  60     struct sigaction action;
  61     sigset_t sigset;
  62
  63     ob_state = State_Starting;
  64
  65     /* initialize the locale */
  66     if (!setlocale(LC_ALL, ""))
  67         g_warning("Couldn't set locale from environment.\n");
  68     bindtextdomain(PACKAGE, LOCALEDIR);
  69     bind_textdomain_codeset(PACKAGE, "UTF-8");
  70     textdomain(PACKAGE);
  71
  72     /* set up signal handler */
  73     sigemptyset(&sigset);
  74     action.sa_handler = signal_handler;
  75     action.sa_mask = sigset;
  76     action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
  77     sigaction(SIGUSR1, &action, (struct sigaction *) NULL);
  78     sigaction(SIGPIPE, &action, (struct sigaction *) NULL);
  79     sigaction(SIGSEGV, &action, (struct sigaction *) NULL);
  80     sigaction(SIGFPE, &action, (struct sigaction *) NULL);
  81     sigaction(SIGTERM, &action, (struct sigaction *) NULL);
  82     sigaction(SIGINT, &action, (struct sigaction *) NULL);
  83     sigaction(SIGHUP, &action, (struct sigaction *) NULL);
  84     sigaction(SIGCHLD, &action, (struct sigaction *) NULL);
  85
  86     /* anything that died while we were restarting won't give us a SIGCHLD */
  87     while (waitpid(-1, NULL, WNOHANG) > 0);
  88
  89     /* XXX parse out command line args */
  90     (void)argc;(void)argv;
  91
  92     ob_display = XOpenDisplay(NULL);
  93     if (ob_display == NULL) {
  94         /* print a message and exit */
  95         g_critical("Failed to open the display.");
  96         exit(1);
  97     }
  98     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1) {
  99         /* print a message and exit */
 100         g_critical("Failed to set display as close-on-exec.");
 101         exit(1);
 102     }
 103
 104     ob_screen = DefaultScreen(ob_display);
 105     ob_root = RootWindow(ob_display, ob_screen);
 106
 107     /* XXX fork self onto other screens */
 108
 109     XSynchronize(ob_display, ob_sync);
 110
 111     /* check for locale support */
 112     if (!XSupportsLocale())
 113         g_warning("X server does not support locale.");
 114     if (!XSetLocaleModifiers(""))
 115         g_warning("Cannot set locale modifiers for the X server.");
 116
 117     /* set our error handler */
 118     XSetErrorHandler(xerror_handler);
 119
 120     /* set the DISPLAY environment variable for any lauched children, to the
 121        display we're using, so they open in the right place. */
 122     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
 123
 124     ob_cursors.left_ptr = XCreateFontCursor(ob_display, XC_left_ptr);
 125     ob_cursors.ll_angle = XCreateFontCursor(ob_display, XC_ll_angle);
 126     ob_cursors.lr_angle = XCreateFontCursor(ob_display, XC_lr_angle);
 127
 128     prop_startup(); /* get atoms values for the display */
 129     extensions_query_all(); /* find which extensions are present */
 130
 131     if (screen_annex()) { /* it will be ours! */
 132         timer_startup();
 133         render_startup();
 134         font_startup();
 135         themerc_startup();
 136         engine_startup(themerc_engine);
 137         python_startup();
 138         configwrap_startup();
 139         openboxwrap_startup();
 140         clientwrap_startup();
 141         hooks_startup();
 142         event_startup();
 143         screen_startup();
 144         focus_startup();
 145         client_startup();
 146         keyboard_startup();
 147         pointer_startup();
 148
 149         /* load the user's settings */
 150         if (!python_import("rc"))
 151             g_warning("ERROR LOADING RC FILE");
 152
 153         HOOKFIRE(startup, "()");
 154
 155         /* get all the existing windows */
 156         client_manage_all();
 157
 158         ob_state = State_Running;
 159         while (!ob_shutdown) {
 160             event_loop();
 161         }
 162         ob_state = State_Exiting;
 163
 164         client_unmanage_all();
 165
 166         HOOKFIRE(shutdown, "()");
 167
 168         pointer_shutdown();
 169         keyboard_shutdown();
 170         client_shutdown();
 171         screen_shutdown();
 172         event_shutdown();
 173         hooks_shutdown();
 174         clientwrap_shutdown();
 175         openboxwrap_shutdown();
 176         configwrap_shutdown();
 177         python_shutdown();
 178         engine_shutdown();
 179         themerc_shutdown();
 180         render_shutdown();
 181         timer_shutdown();
 182     }
 183
 184     XCloseDisplay(ob_display);
 185
 186     /* XXX if (ob_restart) */
 187
 188     return 0;
 189 }
 190
 191 void signal_handler(int signal)
 192 {
 193     switch (signal) {
 194     case SIGUSR1:
 195         g_message("Caught SIGUSR1 signal. Restarting.");
 196         ob_shutdown = ob_restart = TRUE;
 197         break;
 198
 199     case SIGCHLD:
 200         wait(NULL);
 201         break;
 202
 203     case SIGHUP:
 204     case SIGINT:
 205     case SIGTERM:
 206     case SIGPIPE:
 207         g_message("Caught signal %d. Exiting.", signal);
 208         ob_shutdown = TRUE;
 209         break;
 210
 211     case SIGFPE:
 212     case SIGSEGV:
 213         g_error("Caught signal %d. Aborting and dumping core.", signal);
 214     }
 215 }