C++ NM_DEVICE函数代码示例

static GObject*
constructor (GType type,
			 guint n_construct_params,
			 GObjectConstructParam *construct_params)
{
	GObject *object;
	NMDeviceAdslPrivate *priv;
	GError *error = NULL;

	object = G_OBJECT_CLASS (nm_device_adsl_parent_class)->constructor (type,
	                                                                    n_construct_params,
	                                                                    construct_params);
	if (!object)
		return NULL;

	priv = NM_DEVICE_ADSL_GET_PRIVATE (object);

	priv->atm_index = get_atm_index (nm_device_get_iface (NM_DEVICE (object)), &error);
	if (priv->atm_index < 0) {
		nm_log_dbg (LOGD_ADSL, "error reading ATM device index: (%d) %s",
		            error ? error->code : -1,
		            error && error->message ? error->message : "(unknown)");
		g_clear_error (&error);
		g_object_unref (object);
		return NULL;
	} else {
		nm_log_dbg (LOGD_ADSL, "(%s): ATM device index %d",
				    nm_device_get_iface (NM_DEVICE (object)), priv->atm_index);
	}

	/* Poll the carrier */
	priv->carrier_poll_id = g_timeout_add_seconds (5, carrier_update_cb, object);

	return object;
}

gboolean
nm_device_bt_modem_removed (NMDeviceBt *self, NMModem *modem)
{
    NMDeviceBtPrivate *priv;
    NMDeviceState state;

    g_return_val_if_fail (self != NULL, FALSE);
    g_return_val_if_fail (NM_IS_DEVICE_BT (self), FALSE);
    g_return_val_if_fail (modem != NULL, FALSE);
    g_return_val_if_fail (NM_IS_MODEM (modem), FALSE);

    priv = NM_DEVICE_BT_GET_PRIVATE (self);

    if (modem != priv->modem)
        return FALSE;

    /* Fail the device if the modem was removed while active */
    state = nm_device_get_state (NM_DEVICE (self));
    if (   state == NM_DEVICE_STATE_ACTIVATED
            || nm_device_is_activating (NM_DEVICE (self))) {
        nm_device_state_changed (NM_DEVICE (self),
                                 NM_DEVICE_STATE_FAILED,
                                 NM_DEVICE_STATE_REASON_BT_FAILED);
    } else {
        g_object_unref (priv->modem);
        priv->modem = NULL;
    }

    return TRUE;
}

NMActRequest *
nm_act_request_new (NMConnection *connection,
                    const char *specific_object,
                    gboolean user_requested,
                    gboolean assumed,
                    gpointer *device)
{
	GObject *object;
	NMActRequestPrivate *priv;

	g_return_val_if_fail (NM_IS_CONNECTION (connection), NULL);
	g_return_val_if_fail (NM_DEVICE (device), NULL);

	object = g_object_new (NM_TYPE_ACT_REQUEST, NULL);
	if (!object)
		return NULL;

	priv = NM_ACT_REQUEST_GET_PRIVATE (object);

	priv->connection = g_object_ref (connection);
	if (specific_object)
		priv->specific_object = g_strdup (specific_object);

	priv->device = NM_DEVICE (device);
	g_signal_connect (device, "state-changed",
	                  G_CALLBACK (device_state_changed),
	                  NM_ACT_REQUEST (object));

	priv->user_requested = user_requested;
	priv->assumed = assumed;

	return NM_ACT_REQUEST (object);
}

static void
set_enabled (NMDevice *device, gboolean enabled)
{
	NMDeviceWimax *self = NM_DEVICE_WIMAX (device);
	NMDeviceWimaxPrivate *priv = NM_DEVICE_WIMAX_GET_PRIVATE (self);
	gboolean old_available;
	int ret;
	const char *iface;

	iface = nm_device_get_iface (NM_DEVICE (self));

	nm_log_dbg (LOGD_WIMAX, "(%s): setting radio enabled %d -> %d",
	            iface, priv->enabled, enabled);
	if (priv->enabled == enabled)
		return;

	old_available = nm_device_is_available (NM_DEVICE (device));
	priv->enabled = enabled;

	nm_log_dbg (LOGD_WIMAX, "(%s): radio now %s",
	            iface, priv->enabled ? "enabled" : "disabled");

	/* Set the WiMAX device RF state to the current user-specified enabled state */
	if (priv->sdk) {
		ret = iwmx_sdk_rf_state_set (priv->sdk,
		                             enabled ? WIMAX_API_RF_ON : WIMAX_API_RF_OFF);
		if (ret < 0 && ret != -EINPROGRESS) {
			nm_log_warn (LOGD_WIMAX, "(%s): failed to %s radio",
			             iface, priv->enabled ? "enable" : "disable");
		}
	}

	update_availability (self, old_available);
}

static gboolean
carrier_action_defer_cb (gpointer user_data)
{
	NMDeviceWired *self = NM_DEVICE_WIRED (user_data);
	NMDeviceWiredPrivate *priv = NM_DEVICE_WIRED_GET_PRIVATE (self);
	NMDeviceState state;

	priv->carrier_action_defer_id = 0;

	state = nm_device_get_state (NM_DEVICE (self));
	if (state == NM_DEVICE_STATE_UNAVAILABLE) {
		if (priv->carrier)
			nm_device_queue_state (NM_DEVICE (self), NM_DEVICE_STATE_DISCONNECTED, NM_DEVICE_STATE_REASON_CARRIER);
		else {
			/* clear any queued state changes if they wouldn't be valid when the
			 * carrier is off.
			 */
			if (nm_device_queued_state_peek (NM_DEVICE (self)) >= NM_DEVICE_STATE_DISCONNECTED)
				nm_device_queued_state_clear (NM_DEVICE (self));
		}
	} else if (state >= NM_DEVICE_STATE_DISCONNECTED) {
		if (!priv->carrier)
			nm_device_queue_state (NM_DEVICE (self), NM_DEVICE_STATE_UNAVAILABLE, NM_DEVICE_STATE_REASON_CARRIER);
	}

	return FALSE;
}

static NMActStageReturn
act_stage1_prepare (NMDevice *device, NMDeviceStateReason *reason)
{
	NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (device);
	NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (device);
	NMActStageReturn ret;
	gboolean scanning;

	ret = NM_DEVICE_CLASS (nm_device_olpc_mesh_parent_class)->act_stage1_prepare (device, reason);
	if (ret != NM_ACT_STAGE_RETURN_SUCCESS)
		return ret;

	/* disconnect companion device, if it is connected */
	if (nm_device_get_act_request (NM_DEVICE (priv->companion))) {
		_LOGI (LOGD_OLPC, "disconnecting companion device %s",
		       nm_device_get_iface (priv->companion));
		/* FIXME: VPN stuff here is a bug; but we can't really change API now... */
		nm_device_state_changed (NM_DEVICE (priv->companion),
		                         NM_DEVICE_STATE_DISCONNECTED,
		                         NM_DEVICE_STATE_REASON_USER_REQUESTED);
		_LOGI (LOGD_OLPC, "companion %s disconnected",
		       nm_device_get_iface (priv->companion));
	}


	/* wait with continuing configuration untill the companion device is done scanning */
	g_object_get (priv->companion, "scanning", &scanning, NULL);
	if (scanning) {
		priv->stage1_waiting = TRUE;
		return NM_ACT_STAGE_RETURN_POSTPONE;
	}

	return NM_ACT_STAGE_RETURN_SUCCESS;
}

static GObject*
constructor (GType type,
             guint n_construct_params,
             GObjectConstructParam *construct_params)
{
	GObject *object;
	GObjectClass *klass;
	NMDeviceOlpcMesh *self;
	NMDeviceWifiCapabilities caps;

	klass = G_OBJECT_CLASS (nm_device_olpc_mesh_parent_class);
	object = klass->constructor (type, n_construct_params, construct_params);
	if (!object)
		return NULL;

	self = NM_DEVICE_OLPC_MESH (object);

	if (!nm_platform_wifi_get_capabilities (nm_device_get_ifindex (NM_DEVICE (self)), &caps)) {
		_LOGW (LOGD_HW | LOGD_OLPC, "failed to initialize WiFi driver");
		g_object_unref (object);
		return NULL;
	}

	g_signal_connect (nm_manager_get (), "device-added", G_CALLBACK (device_added_cb), self);
	g_signal_connect (nm_manager_get (), "device-removed", G_CALLBACK (device_removed_cb), self);

	/* shorter timeout for mesh connectivity */
	nm_device_set_dhcp_timeout (NM_DEVICE (self), 20);
	return object;
}

static gboolean
carrier_update_cb (gpointer user_data)
{
	NMDeviceAdsl *self = NM_DEVICE_ADSL (user_data);
	GError *error = NULL;
	gboolean carrier = FALSE;
	char *path, *contents;
	const char *iface;
	gboolean success;

	iface = nm_device_get_iface (NM_DEVICE (self));

	path  = g_strdup_printf ("/sys/class/atm/%s/carrier", iface);
	success = g_file_get_contents (path, &contents, NULL, &error);
	g_free (path);

	if (!success) {
		nm_log_dbg (LOGD_ADSL, "error reading %s: (%d) %s",
		            path,
		            error ? error->code : -1,
		            error && error->message ? error->message : "(unknown)");
		g_clear_error (&error);
		return TRUE;
	}

	carrier = (gboolean) atoi (contents);
	g_free (contents);
	nm_device_set_carrier (NM_DEVICE (self), carrier);
	return TRUE;
}

static void
get_property (GObject *object, guint prop_id,
              GValue *value, GParamSpec *pspec)
{
	NMDeviceBridgePrivate *priv = NM_DEVICE_BRIDGE_GET_PRIVATE (object);
	GPtrArray *slaves;
	GSList *list, *iter;
	char *hwaddr;

	switch (prop_id) {
	case PROP_HW_ADDRESS:
		hwaddr = nm_utils_hwaddr_ntoa (priv->hw_addr, nm_utils_hwaddr_type (priv->hw_addr_len));
		g_value_take_string (value, hwaddr);
		break;
	case PROP_CARRIER:
		g_value_set_boolean (value, nm_device_wired_get_carrier (NM_DEVICE_WIRED (object)));
		break;
	case PROP_SLAVES:
		slaves = g_ptr_array_new ();
		list = nm_device_master_get_slaves (NM_DEVICE (object));
		for (iter = list; iter; iter = iter->next)
			g_ptr_array_add (slaves, g_strdup (nm_device_get_path (NM_DEVICE (iter->data))));
		g_slist_free (list);
		g_value_take_boxed (value, slaves);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
constructed (GObject *object)
{
	G_OBJECT_CLASS (nm_device_bridge_parent_class)->constructed (object);

	nm_log_dbg (LOGD_HW | LOGD_BRIDGE, "(%s): kernel ifindex %d",
	            nm_device_get_iface (NM_DEVICE (object)),
	            nm_device_get_ifindex (NM_DEVICE (object)));
}

static void
emit_nsp_added_removed (NMDeviceWimax *self,
                        guint signum,
                        NMWimaxNsp *nsp,
                        gboolean recheck_available_connections)
{
	g_signal_emit (self, signals[signum], 0, nsp);
	g_object_notify (G_OBJECT (self), NM_DEVICE_WIMAX_NSPS);
	nm_device_emit_recheck_auto_activate (NM_DEVICE (self));
	if (recheck_available_connections)
		nm_device_recheck_available_connections (NM_DEVICE (self));
}

/**
 * nm_act_request_new:
 *
 * @connection: the connection to activate @device with
 * @specific_object: the object path of the specific object (ie, WiFi access point,
 *    etc) that will be used to activate @connection and @device
 * @user_requested: pass %TRUE if the activation was requested via D-Bus,
 *    otherwise %FALSE if requested internally by NM (ie, autoconnect)
 * @user_uid: if @user_requested is %TRUE, the Unix UID of the user that requested
 * @dbus_sender: if @user_requested is %TRUE, the D-BUS sender that requested
 *    the activation
 * @assumed: pass %TRUE if the activation should "assume" (ie, taking over) an
 *    existing connection made before this instance of NM started
 * @device: the device/interface to configure according to @connection
 * @dependency: if the activation depends on another device (ie, VLAN slave,
 *    bond slave, etc) pass the #NMActiveConnection that this activation request
 *    should wait for before proceeding
 *
 * Begins activation of @device using the given @connection and other details.
 *
 * Returns: the new activation request on success, %NULL on error.
 */
NMActRequest *
nm_act_request_new (NMConnection *connection,
                    const char *specific_object,
                    gboolean user_requested,
                    gulong user_uid,
                    const char *dbus_sender,
                    gboolean assumed,
                    gpointer *device,
                    NMActiveConnection *dependency)
{
	GObject *object;
	NMActRequestPrivate *priv;

	g_return_val_if_fail (NM_IS_CONNECTION (connection), NULL);
	g_return_val_if_fail (NM_DEVICE (device), NULL);

	object = g_object_new (NM_TYPE_ACT_REQUEST,
	                       NM_ACTIVE_CONNECTION_SPECIFIC_OBJECT, specific_object,
	                       NULL);
	if (!object)
		return NULL;

	priv = NM_ACT_REQUEST_GET_PRIVATE (object);

	priv->connection = g_object_ref (connection);
	priv->device = NM_DEVICE (device);
	g_signal_connect (device, "state-changed",
	                  G_CALLBACK (device_state_changed),
	                  NM_ACT_REQUEST (object));

	priv->user_uid = user_uid;
	priv->user_requested = user_requested;
	priv->dbus_sender = g_strdup (dbus_sender);
	priv->assumed = assumed;

	if (dependency) {
		priv->dep = dependency;
		g_object_weak_ref (G_OBJECT (dependency), (GWeakNotify) dep_gone, object);
		priv->dep_state_id = g_signal_connect (dependency,
		                                       "notify::" NM_ACTIVE_CONNECTION_STATE,
		                                       G_CALLBACK (dep_state_changed),
		                                       object);
	}

	if (!nm_active_connection_export (NM_ACTIVE_CONNECTION (object),
	                                  connection,
	                                  nm_device_get_path (NM_DEVICE (device)))) {
		g_object_unref (object);
		object = NULL;
	}

	return (NMActRequest *) object;
}

static void
device_added_cb (NMManager *manager, NMDevice *other, gpointer user_data)
{
	NMDeviceOlpcMesh *self = NM_DEVICE_OLPC_MESH (user_data);
	NMDeviceOlpcMeshPrivate *priv = NM_DEVICE_OLPC_MESH_GET_PRIVATE (self);

	if (!priv->companion && check_companion (self, other)) {
		nm_device_state_changed (NM_DEVICE (self),
		                         NM_DEVICE_STATE_DISCONNECTED,
		                         NM_DEVICE_STATE_REASON_NONE);
		nm_device_remove_pending_action (NM_DEVICE (self), "waiting for companion", TRUE);
	}
}

static gboolean
bt_connect_timeout (gpointer user_data)
{
	NMDeviceBt *self = NM_DEVICE_BT (user_data);

	nm_log_dbg (LOGD_BT, "(%s): initial connection timed out",
	            nm_device_get_iface (NM_DEVICE (self)));

	NM_DEVICE_BT_GET_PRIVATE (self)->timeout_id = 0;
	nm_device_state_changed (NM_DEVICE (self),
	                         NM_DEVICE_STATE_FAILED,
	                         NM_DEVICE_STATE_REASON_BT_FAILED);
	return FALSE;
}

static gboolean
link_timeout_cb (gpointer user_data)
{
	NMDeviceWimax *self = NM_DEVICE_WIMAX (user_data);
	NMDeviceWimaxPrivate *priv = NM_DEVICE_WIMAX_GET_PRIVATE (self);

	priv->link_timeout_id = 0;

	nm_log_dbg (LOGD_WIMAX, "(%s): link timed out", nm_device_get_iface (NM_DEVICE (self)));
	nm_device_state_changed (NM_DEVICE (self),
	                         NM_DEVICE_STATE_FAILED,
	                         NM_DEVICE_STATE_REASON_CARRIER);

	return FALSE;
}