static void
setup_hal_devices (void)
{
	DBusConnection *connection;
	DBusError error;
	LibHalContext *ctx;
	char **devices;
	int i, num = 0;

	dbus_error_init (&error);

	connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
	if (connection == NULL) {
		/* cannot get a dbus connection */
		if (dbus_error_is_set (&error)) {
			g_warning ("Getting a system dbus connection an error occured: %s", error.message);
			dbus_error_free (&error);
		}
		return;
	}

	dbus_connection_setup_with_g_main (connection, g_main_context_default ());

	ctx = libhal_ctx_new ();
	g_return_if_fail (ctx != NULL);

	libhal_ctx_set_device_added (ctx, device_added_callback);
	libhal_ctx_set_device_removed (ctx, device_removed_callback);
	libhal_ctx_set_dbus_connection (ctx, connection);

	if (!libhal_ctx_init (ctx, &error)) {
		/* cannot connect to hald */
		if (dbus_error_is_set (&error)) {
			g_warning ("Connecting to hald an error occured: %s", error.message);
			dbus_error_free (&error);
		}
		return;
	}

	devices = libhal_find_device_by_capability (ctx, "alsa", &num, &error);
	if (devices == NULL) {
		/* error in the libhal_find_device_by_capability function */
		if (dbus_error_is_set (&error)) {
			g_warning ("Calling a hal function an error occured: %s", error.message);
			dbus_error_free (&error);
		}
		return;
	}

	for (i = 0; i < num; i++) {
		device_added_callback (ctx, devices[i]);
	}

	dbus_free_string_array (devices);
}
コード例 #2
0
ファイル: rb-mtp-plugin.c プロジェクト: bilboed/rhythmbox
static gboolean
rb_mtp_plugin_setup_dbus_hal_connection (RBMtpPlugin *plugin)
{
	DBusError error;

	dbus_error_init (&error);
	plugin->dbus_connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
	if (plugin->dbus_connection == NULL) {
		rb_debug ("error: dbus_bus_get: %s: %s\n", error.name, error.message);
		dbus_error_free (&error);
		return FALSE;
	}

	dbus_connection_setup_with_g_main (plugin->dbus_connection, NULL);

	rb_debug ("connected to: %s", dbus_bus_get_unique_name (plugin->dbus_connection));

	plugin->hal_context = libhal_ctx_new ();
	if (plugin->hal_context == NULL) {
		dbus_error_free (&error);
		return FALSE;
	}
	libhal_ctx_set_dbus_connection (plugin->hal_context, plugin->dbus_connection);

	libhal_ctx_set_user_data (plugin->hal_context, (void *)plugin);
	libhal_ctx_set_device_added (plugin->hal_context, rb_mtp_plugin_device_added);
	libhal_ctx_set_device_removed (plugin->hal_context, rb_mtp_plugin_device_removed);
	libhal_device_property_watch_all (plugin->hal_context, &error);

	if (!libhal_ctx_init (plugin->hal_context, &error)) {
		rb_debug ("error: libhal_ctx_init: %s: %s\n", error.name, error.message);
		dbus_error_free (&error);
		return FALSE;
	}

	dbus_error_free (&error);
	return TRUE;
}
コード例 #3
0
ファイル: uhvm.c プロジェクト: mjessome/uhvm
static int
init_hal(void)
{
    DBusError error;

    if (!(hal_ctx = libhal_ctx_new()))
        return -1;

    libhal_ctx_set_dbus_connection(hal_ctx, dbus_conn);

    libhal_ctx_set_device_added(hal_ctx, device_added);
    libhal_ctx_set_device_removed(hal_ctx, device_removed);

    dbus_error_init(&error);
    if (!libhal_device_property_watch_all(hal_ctx, &error)) {
        if (dbus_error_is_set(&error)) {
            syslog(LOG_ERR, "%s:%d: %s:%s", __FILE__, __LINE__,
                   error.name, error.message);
            dbus_error_free (&error);
            libhal_ctx_free (hal_ctx);
            return -1;
        }
    }

    if (!libhal_ctx_init(hal_ctx, &error)) {
        if (dbus_error_is_set(&error)) {
            syslog(LOG_ERR, "%s:%d: %s:%s", __FILE__, __LINE__,
                   error.name, error.message);
            dbus_error_free(&error);
            libhal_ctx_free(hal_ctx);
            return -1;
        }
    }

    return 0;
}
コード例 #4
0
ファイル: hal.c プロジェクト: JoliOS/xorg-server
static BOOL
connect_and_register(DBusConnection *connection, struct config_hal_info *info)
{
    DBusError error;
    char **devices;
    int num_devices, i;

    if (info->hal_ctx)
        return TRUE; /* already registered, pretend we did something */

    info->system_bus = connection;

    dbus_error_init(&error);

    info->hal_ctx = libhal_ctx_new();
    if (!info->hal_ctx) {
        LogMessage(X_ERROR, "config/hal: couldn't create HAL context\n");
        goto out_err;
    }

    if (!libhal_ctx_set_dbus_connection(info->hal_ctx, info->system_bus)) {
        LogMessage(X_ERROR, "config/hal: couldn't associate HAL context with bus\n");
        goto out_err;
    }
    if (!libhal_ctx_init(info->hal_ctx, &error)) {
        LogMessage(X_ERROR, "config/hal: couldn't initialise context: %s (%s)\n",
		   error.name ? error.name : "unknown error",
		   error.message ? error.message : "null");
        goto out_err;
    }
    if (!libhal_device_property_watch_all(info->hal_ctx, &error)) {
        LogMessage(X_ERROR, "config/hal: couldn't watch all properties: %s (%s)\n",
		   error.name ? error.name : "unknown error",
		   error.message ? error.message : "null");
        goto out_ctx;
    }
    libhal_ctx_set_device_added(info->hal_ctx, device_added);
    libhal_ctx_set_device_removed(info->hal_ctx, device_removed);

    devices = libhal_find_device_by_capability(info->hal_ctx, "input",
                                               &num_devices, &error);
    /* FIXME: Get default devices if error is set. */
    if (dbus_error_is_set(&error)) {
        LogMessage(X_ERROR, "config/hal: couldn't find input device: %s (%s)\n",
		   error.name ? error.name : "unknown error",
		   error.message ? error.message : "null");
        goto out_ctx;
    }
    for (i = 0; i < num_devices; i++)
        device_added(info->hal_ctx, devices[i]);
    libhal_free_string_array(devices);

    dbus_error_free(&error);

    return TRUE;

out_ctx:
    dbus_error_free(&error);

    if (!libhal_ctx_shutdown(info->hal_ctx, &error)) {
        LogMessage(X_WARNING, "config/hal: couldn't shut down context: %s (%s)\n",
                error.name ? error.name : "unknown error",
                error.message ? error.message : "null");
        dbus_error_free(&error);
    }

out_err:
    dbus_error_free(&error);

    if (info->hal_ctx) {
        libhal_ctx_free(info->hal_ctx);
    }

    info->hal_ctx = NULL;
    info->system_bus = NULL;

    return FALSE;
}
コード例 #5
0
ファイル: HALManager.cpp プロジェクト: Ayu222/android
// Initialize basic HAL connection
LibHalContext *CHALManager::InitializeHal()
{
  LibHalContext *ctx;
  char **devices;
  int nr;

  if (!InitializeDBus())
    return NULL;

  if (!(ctx = libhal_ctx_new()))
  {
    CLog::Log(LOGERROR, "HAL: failed to create a HAL context!");
    return NULL;
  }

  if (!libhal_ctx_set_dbus_connection(ctx, m_DBusSystemConnection))
    CLog::Log(LOGERROR, "HAL: Failed to connect with dbus");

  libhal_ctx_set_device_added(ctx, DeviceAdded);
  libhal_ctx_set_device_removed(ctx, DeviceRemoved);
  libhal_ctx_set_device_new_capability(ctx, DeviceNewCapability);
  libhal_ctx_set_device_lost_capability(ctx, DeviceLostCapability);
  libhal_ctx_set_device_property_modified(ctx, DevicePropertyModified);
  libhal_ctx_set_device_condition(ctx, DeviceCondition);

  if (!libhal_device_property_watch_all(ctx, &m_Error))
  {
    CLog::Log(LOGERROR, "HAL: Failed to set property watch %s", m_Error.message);
    dbus_error_free(&m_Error);
    libhal_ctx_free(ctx);
    return NULL;
  }

  if (!libhal_ctx_init(ctx, &m_Error))
  {
    CLog::Log(LOGERROR, "HAL: Failed to initialize hal context: %s", m_Error.message);
    dbus_error_free(&m_Error);
    libhal_ctx_free(ctx);
    return NULL;
  }

  /*
 * Do something to ping the HAL daemon - the above functions will
 * succeed even if hald is not running, so long as DBUS is.  But we
 * want to exit silently if hald is not running, to behave on
 * pre-2.6 systems.
 */
  if (!(devices = libhal_get_all_devices(ctx, &nr, &m_Error)))
  {
    CLog::Log(LOGERROR, "HAL: seems that Hal daemon is not running: %s", m_Error.message);
    dbus_error_free(&m_Error);

    libhal_ctx_shutdown(ctx, NULL);
    libhal_ctx_free(ctx);
    return NULL;
  }

  libhal_free_string_array(devices);

  return ctx;
}
コード例 #6
0
ファイル: format-dialog.c プロジェクト: paulcbetts/gformat
FormatDialog*
format_dialog_new(void)
{
	FormatDialog *dialog;
	dialog = g_new0 (FormatDialog, 1);
	const char* xmlpath = GLADEDIR "/gformat.glade";
        
	dialog->xml = glade_xml_new (xmlpath, "toplevel", NULL);
	
	
        /* Try uninstalled next */
	if (!dialog->xml) {
		xmlpath = "./gformat.glade";
		dialog->xml = glade_xml_new (xmlpath, "toplevel", NULL);
	}

	if (dialog->xml == NULL){
		GtkWidget *f_dialog;
		f_dialog = gtk_message_dialog_new (NULL, 0,
				GTK_MESSAGE_ERROR,
				GTK_BUTTONS_OK,
				"Glade file for the format program is missing.\n"
				"Please check your installation of gnome-utils");
		gtk_dialog_run (GTK_DIALOG (f_dialog));
		gtk_widget_destroy (f_dialog);
		exit (1);
	} 

	/* Grab some widgets */
	dialog->toplevel = glade_xml_get_widget (dialog->xml, "toplevel");
	dialog->volume_combo = GTK_COMBO_BOX(glade_xml_get_widget(dialog->xml, "volume_combo"));
	dialog->show_partitions = GTK_TOGGLE_BUTTON(glade_xml_get_widget(dialog->xml, "show_partitions"));
	dialog->fs_combo = GTK_COMBO_BOX(glade_xml_get_widget(dialog->xml, "fs_combo"));
	dialog->extra_volume_info = GTK_LABEL(glade_xml_get_widget(dialog->xml, "extra_volume_info"));
	dialog->extra_volume_hbox = GTK_HBOX(glade_xml_get_widget(dialog->xml, "extra_volume_hbox"));
	dialog->progress_bar = GTK_PROGRESS_BAR(glade_xml_get_widget(dialog->xml, "progress_bar"));
	dialog->format_button = GTK_BUTTON(glade_xml_get_widget(dialog->xml, "format_button"));
	dialog->cancel_button = GTK_BUTTON(glade_xml_get_widget(dialog->xml, "cancel_button"));
	dialog->luks_subwindow = GTK_BOX(glade_xml_get_widget (dialog->xml, "luks_subwindow"));
	dialog->floppy_subwindow = GTK_BOX(glade_xml_get_widget (dialog->xml, "floppy_subwindow"));
	g_assert(dialog->toplevel != NULL);

	/* Get a HAL context; if we can't, bail */
	dialog->hal_context = libhal_context_alloc();

	glade_xml_signal_autoconnect(dialog->xml);
	g_object_set_data(G_OBJECT(dialog->toplevel), "userdata", dialog);

	/* Set stuff in the dialog up */
	setup_volume_treeview(dialog);	
	setup_filesystem_menu(dialog);

	gtk_widget_show_all (dialog->toplevel);
	update_dialog(dialog);

	/* We do this here so they at least see the window before we die */
	if( !dialog->hal_context ) {
		show_error_dialog(dialog->toplevel, 
				_("Cannot get list of disks"), 
				_("Make sure the HAL daemon is running and configured correctly"));
		return NULL;
	}

	/* Get the HAL version and register the HAL device callbacks */
	get_hal_version(dialog);
	g_debug("Registering callback!");
	libhal_ctx_set_user_data(dialog->hal_context, dialog);
	if (libhal_ctx_set_device_added(dialog->hal_context, on_libhal_device_added_removed) == TRUE)
                printf("libhal_ctx_set_device_added called");
	libhal_ctx_set_device_removed(dialog->hal_context, on_libhal_device_added_removed);
	libhal_ctx_set_device_property_modified(dialog->hal_context, on_libhal_prop_modified);
	libhal_ctx_set_device_new_capability(dialog->hal_context, NULL);
	libhal_ctx_set_device_lost_capability(dialog->hal_context, NULL);
	libhal_ctx_set_device_condition(dialog->hal_context, NULL);

	return dialog;
}
コード例 #7
0
char *
battstat_hal_initialise (void (*callback) (void))
{
  DBusConnection *connection;
  LibHalContext *ctx;
  DBusError error;
  char *error_str;
  char **devices;
  int i, num;

  status_updated_callback = callback;

  if( battstat_hal_ctx != NULL )
    return g_strdup( "Already initialised!" );

  dbus_error_init( &error );

  if( (connection = dbus_bus_get( DBUS_BUS_SYSTEM, &error )) == NULL )
    goto error_out;

  dbus_connection_setup_with_g_main( connection, g_main_context_default() );

  if( (ctx = libhal_ctx_new()) == NULL )
  {
    dbus_set_error( &error, _("HAL error"), _("Could not create libhal_ctx") );
    goto error_out;
  }

  libhal_ctx_set_device_property_modified( ctx, property_callback );
  libhal_ctx_set_device_added( ctx, device_added_callback );
  libhal_ctx_set_device_removed( ctx, device_removed_callback );
  libhal_ctx_set_dbus_connection( ctx, connection );

  if( libhal_ctx_init( ctx, &error ) == 0 )
    goto error_freectx;
  
  devices = libhal_find_device_by_capability( ctx, "battery", &num, &error );

  if( devices == NULL )
    goto error_shutdownctx;

  /* FIXME: for now, if 0 battery devices are present on first scan, then fail.
   * This allows fallover to the legacy (ACPI, APM, etc) backends if the
   * installed version of HAL doesn't know about batteries.  This check should
   * be removed at some point in the future (maybe circa MATE 2.13..).
   */
  if( num == 0 )
  {
    dbus_free_string_array( devices );
    dbus_set_error( &error, _("HAL error"), _("No batteries found") );
    goto error_shutdownctx;
  }

  for( i = 0; i < num; i++ )
  {
    char *type = libhal_device_get_property_string( ctx, devices[i],
                                                    "battery.type",
                                                    &error );

    if( type )
    {
      /* We only track 'primary' batteries (ie: to avoid monitoring
       * batteries in cordless mice or UPSes etc.)
       */
      if( !strcmp( type, "primary" ) )
        add_to_list( ctx, &batteries, devices[i],
                     sizeof (struct battery_info) );

      libhal_free_string( type );
    }
  }
  dbus_free_string_array( devices );

  devices = libhal_find_device_by_capability( ctx, "ac_adapter", &num, &error );

  if( devices == NULL )
  {
    batteries = free_entire_list( batteries );
    goto error_shutdownctx;
  }

  for( i = 0; i < num; i++ )
    add_to_list( ctx, &adaptors, devices[i], sizeof (struct adaptor_info) );
  dbus_free_string_array( devices );

  dbus_error_free( &error );

  battstat_hal_ctx = ctx;

  return NULL;

error_shutdownctx:
  libhal_ctx_shutdown( ctx, NULL );

error_freectx:
  libhal_ctx_free( ctx );

error_out:
  error_str = g_strdup_printf( _("Unable to initialise HAL: %s: %s"),
                               error.name, error.message );
  dbus_error_free( &error );
  return error_str;
}
static void
thunar_vfs_volume_manager_hal_init (ThunarVfsVolumeManagerHal *manager_hal)
{
  LibHalDrive *hd;
  DBusError    error;
  gchar      **drive_udis;
  gchar      **udis;
  gint         n_drive_udis;
  gint         n_udis;
  gint         n, m;

  /* initialize the D-BUS error */
  dbus_error_init (&error);

  /* allocate a HAL context */
  manager_hal->context = libhal_ctx_new ();
  if (G_UNLIKELY (manager_hal->context == NULL))
    return;

  /* try to connect to the system bus */
  manager_hal->dbus_connection = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
  if (G_UNLIKELY (manager_hal->dbus_connection == NULL))
    goto failed;

  /* setup the D-BUS connection for the HAL context */
  libhal_ctx_set_dbus_connection (manager_hal->context, manager_hal->dbus_connection);

  /* connect our manager object to the HAL context */
  libhal_ctx_set_user_data (manager_hal->context, manager_hal);

  /* setup callbacks */
  libhal_ctx_set_device_added (manager_hal->context, thunar_vfs_volume_manager_hal_device_added);
  libhal_ctx_set_device_removed (manager_hal->context, thunar_vfs_volume_manager_hal_device_removed);
  libhal_ctx_set_device_new_capability (manager_hal->context, thunar_vfs_volume_manager_hal_device_new_capability);
  libhal_ctx_set_device_lost_capability (manager_hal->context, thunar_vfs_volume_manager_hal_device_lost_capability);
  libhal_ctx_set_device_property_modified (manager_hal->context, thunar_vfs_volume_manager_hal_device_property_modified);
  libhal_ctx_set_device_condition (manager_hal->context, thunar_vfs_volume_manager_hal_device_condition);

  /* try to initialize the HAL context */
  if (!libhal_ctx_init (manager_hal->context, &error))
    goto failed;

  /* setup the D-BUS connection with the GLib main loop */
  dbus_connection_setup_with_g_main (manager_hal->dbus_connection, NULL);

  /* lookup all drives currently known to HAL */
  drive_udis = libhal_find_device_by_capability (manager_hal->context, "storage", &n_drive_udis, &error);
  if (G_LIKELY (drive_udis != NULL))
    {
      /* process all drives UDIs */
      for (m = 0; m < n_drive_udis; ++m)
        {
          /* determine the LibHalDrive for the drive UDI */
          hd = libhal_drive_from_udi (manager_hal->context, drive_udis[m]);
          if (G_UNLIKELY (hd == NULL))
            continue;

          /* check if we have a floppy disk here */
          if (libhal_drive_get_type (hd) == LIBHAL_DRIVE_TYPE_FLOPPY)
            {
              /* add the drive based on the UDI */
              thunar_vfs_volume_manager_hal_device_added (manager_hal->context, drive_udis[m]);
            }
          else
            {
              /* determine all volumes for the given drive */
              udis = libhal_drive_find_all_volumes (manager_hal->context, hd, &n_udis);
              if (G_LIKELY (udis != NULL))
                {
                  /* add volumes for all given UDIs */
                  for (n = 0; n < n_udis; ++n)
                    {
                      /* add the volume based on the UDI */
                      thunar_vfs_volume_manager_hal_device_added (manager_hal->context, udis[n]);
                      
                      /* release the UDI (HAL bug #5279) */
                      free (udis[n]);
                    }

                  /* release the UDIs array (HAL bug #5279) */
                  free (udis);
                }
            }

          /* release the hal drive */
          libhal_drive_free (hd);
        }

      /* release the drive UDIs */
      libhal_free_string_array (drive_udis);
    }

  /* watch all devices for changes */
  if (!libhal_device_property_watch_all (manager_hal->context, &error))
    goto failed;

  return;

failed:
  /* release the HAL context */
  if (G_LIKELY (manager_hal->context != NULL))
    {
      libhal_ctx_free (manager_hal->context);
      manager_hal->context = NULL;
    }

  /* print a warning message */
  if (dbus_error_is_set (&error))
    {
      g_warning (_("Failed to connect to the HAL daemon: %s"), error.message);
      dbus_error_free (&error);
    }
}
コード例 #9
0
ファイル: hal.c プロジェクト: GrahamCobb/maemo-xsisusb
static void
connect_hook(DBusConnection *connection, void *data)
{
    DBusError error;
    struct config_hal_info *info = data;
    char **devices;
    int num_devices, i;

    info->system_bus = connection;

    dbus_error_init(&error);

    if (!info->hal_ctx)
        info->hal_ctx = libhal_ctx_new();
    if (!info->hal_ctx) {
        ErrorF("[config/hal] couldn't create HAL context\n");
        goto out_err;
    }

    if (!libhal_ctx_set_dbus_connection(info->hal_ctx, info->system_bus)) {
        ErrorF("[config/hal] couldn't associate HAL context with bus\n");
        goto out_ctx;
    }
    if (!libhal_ctx_init(info->hal_ctx, &error)) {
        ErrorF("[config/hal] couldn't initialise context: %s (%s)\n",
               error.name, error.message);
        goto out_ctx;
    }

    libhal_ctx_set_device_added(info->hal_ctx, device_added);
    libhal_ctx_set_device_removed(info->hal_ctx, device_removed);
    if (!libhal_device_property_watch_all(info->hal_ctx, &error)) {
        ErrorF("[config/hal] couldn't watch all properties: %s (%s)\n",
               error.name, error.message);
        goto out_ctx2;
    }

    devices = libhal_find_device_by_capability(info->hal_ctx, "input",
                                               &num_devices, &error);
    /* FIXME: Get default devices if error is set. */
    for (i = 0; i < num_devices; i++)
        device_added(info->hal_ctx, devices[i]);
    libhal_free_string_array(devices);

    dbus_error_free(&error);

    return;
    
out_ctx2:
    if (!libhal_ctx_shutdown(info->hal_ctx, &error))
        DebugF("[config/hal] couldn't shut down context: %s (%s)\n",
               error.name, error.message);
out_ctx:
    libhal_ctx_free(info->hal_ctx);
out_err:
    dbus_error_free(&error);

    info->hal_ctx = NULL;
    info->system_bus = NULL;

    return;
}
コード例 #10
0
ファイル: odccm-device-manager.c プロジェクト: asmblur/SynCE
static void
init_hal (OdccmDeviceManager *self)
{
  OdccmDeviceManagerPrivate *priv = ODCCM_DEVICE_MANAGER_GET_PRIVATE (self);
  gboolean success = FALSE, initialized = FALSE;
  DBusConnection *conn;
  const gchar *func_name = "";
  DBusError error;

  dbus_error_init (&error);

  if ((conn = dbus_bus_get (DBUS_BUS_SYSTEM, &error)) == NULL)
    {
      func_name = "dbus_bus_get";
      goto DBUS_ERROR;
    }

  dbus_connection_setup_with_g_main (conn, NULL);

  priv->hal_ctx = libhal_ctx_new ();
  if (priv->hal_ctx == NULL)
    goto OUT;

  if (!libhal_ctx_set_dbus_connection (priv->hal_ctx, conn))
    goto OUT;

  if (!libhal_ctx_init (priv->hal_ctx, &error))
    {
      func_name = "libhal_ctx_init";
      goto DBUS_ERROR;
    }

  initialized = TRUE;

  if (!libhal_ctx_set_user_data (priv->hal_ctx, self))
    goto OUT;

  if (!libhal_ctx_set_device_added (priv->hal_ctx, hal_device_added_cb))
    goto OUT;

  if (!libhal_ctx_set_device_removed (priv->hal_ctx, hal_device_removed_cb))
    goto OUT;

  success = TRUE;
  goto OUT;

DBUS_ERROR:
  g_warning ("%s failed with D-Bus error %s: %s\n",
             func_name, error.name, error.message);

  dbus_error_free (&error);

OUT:
  if (!success)
    {
      if (!initialized)
        {
          libhal_ctx_free (priv->hal_ctx);
          priv->hal_ctx = NULL;
        }

      g_warning ("%s: failed", G_STRFUNC);
    }
}