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