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

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