GVariant * CAGattCharacteristicGetProperties(
GattCharacteristic1 * characteristic)
{
/**
* Create a variant containing the @c GattCharacteristic1
* properties, of the form @c a{sa{sv}}.
*
* @note We don't care about the "Value" property here since it is
* automatically made available by BlueZ on the client
* side.
*
* @todo Should we care about "Notifying" property here?
*/
/*
Populate the property table, and create the variant to be
embedded in the results of the
org.freedesktop.Dbus.ObjectManager.GetManagedObjects() method
call.
*/
CADBusSkeletonProperty const properties[] = {
{ "UUID",
g_variant_new_string(
gatt_characteristic1_get_uuid(characteristic)) },
{ "Service",
g_variant_new_object_path(
gatt_characteristic1_get_service(characteristic)) },
{ "Flags",
g_variant_new_strv(
gatt_characteristic1_get_flags(characteristic),
-1) },
{ "Descriptors",
g_variant_new_objv(
gatt_characteristic1_get_descriptors(characteristic),
-1) }
};
return
CAMakePropertyDictionary(
BLUEZ_GATT_CHARACTERISTIC_INTERFACE,
properties,
sizeof(properties) / sizeof(properties[0]));
}
/**
* g_dbus_gvalue_to_gvariant:
* @gvalue: A #GValue to convert to a #GVariant
* @type: A #GVariantType
*
* Converts a #GValue to a #GVariant of the type indicated by the @type
* parameter.
*
* The conversion is using the following rules:
*
* - #G_TYPE_STRING: 's', 'o', 'g' or 'ay'
* - #G_TYPE_STRV: 'as', 'ao' or 'aay'
* - #G_TYPE_BOOLEAN: 'b'
* - #G_TYPE_UCHAR: 'y'
* - #G_TYPE_INT: 'i', 'n'
* - #G_TYPE_UINT: 'u', 'q'
* - #G_TYPE_INT64 'x'
* - #G_TYPE_UINT64: 't'
* - #G_TYPE_DOUBLE: 'd'
* - #G_TYPE_VARIANT: Any #GVariantType
*
* This can fail if e.g. @gvalue is of type #G_TYPE_STRING and @type
* is ['i'][G-VARIANT-TYPE-INT32:CAPS]. It will also fail for any #GType
* (including e.g. #G_TYPE_OBJECT and #G_TYPE_BOXED derived-types) not
* in the table above.
*
* Note that if @gvalue is of type #G_TYPE_VARIANT and its value is
* %NULL, the empty #GVariant instance (never %NULL) for @type is
* returned (e.g. 0 for scalar types, the empty string for string types,
* '/' for object path types, the empty array for any array type and so on).
*
* See the g_dbus_gvariant_to_gvalue() function for how to convert a
* #GVariant to a #GValue.
*
* Returns: A #GVariant (never floating) of #GVariantType @type holding
* the data from @gvalue or %NULL in case of failure. Free with
* g_variant_unref().
*
* Since: 2.30
*/
GVariant *
g_dbus_gvalue_to_gvariant (const GValue *gvalue,
const GVariantType *type)
{
GVariant *ret;
const gchar *s;
const gchar * const *as;
const gchar *empty_strv[1] = {NULL};
g_return_val_if_fail (gvalue != NULL, NULL);
g_return_val_if_fail (type != NULL, NULL);
ret = NULL;
/* @type can easily be e.g. "s" with the GValue holding a GVariant - for example this
* can happen when using the org.gtk.GDBus.C.ForceGVariant annotation with the
* gdbus-codegen(1) tool.
*/
if (G_VALUE_TYPE (gvalue) == G_TYPE_VARIANT)
{
ret = g_value_dup_variant (gvalue);
}
else
{
switch (g_variant_type_peek_string (type)[0])
{
case G_VARIANT_CLASS_BOOLEAN:
ret = g_variant_ref_sink (g_variant_new_boolean (g_value_get_boolean (gvalue)));
break;
case G_VARIANT_CLASS_BYTE:
ret = g_variant_ref_sink (g_variant_new_byte (g_value_get_uchar (gvalue)));
break;
case G_VARIANT_CLASS_INT16:
ret = g_variant_ref_sink (g_variant_new_int16 (g_value_get_int (gvalue)));
break;
case G_VARIANT_CLASS_UINT16:
ret = g_variant_ref_sink (g_variant_new_uint16 (g_value_get_uint (gvalue)));
break;
case G_VARIANT_CLASS_INT32:
ret = g_variant_ref_sink (g_variant_new_int32 (g_value_get_int (gvalue)));
break;
case G_VARIANT_CLASS_UINT32:
ret = g_variant_ref_sink (g_variant_new_uint32 (g_value_get_uint (gvalue)));
break;
case G_VARIANT_CLASS_INT64:
ret = g_variant_ref_sink (g_variant_new_int64 (g_value_get_int64 (gvalue)));
break;
case G_VARIANT_CLASS_UINT64:
ret = g_variant_ref_sink (g_variant_new_uint64 (g_value_get_uint64 (gvalue)));
break;
case G_VARIANT_CLASS_DOUBLE:
ret = g_variant_ref_sink (g_variant_new_double (g_value_get_double (gvalue)));
break;
case G_VARIANT_CLASS_STRING:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "";
ret = g_variant_ref_sink (g_variant_new_string (s));
break;
case G_VARIANT_CLASS_OBJECT_PATH:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "/";
ret = g_variant_ref_sink (g_variant_new_object_path (s));
break;
case G_VARIANT_CLASS_SIGNATURE:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "";
ret = g_variant_ref_sink (g_variant_new_signature (s));
break;
case G_VARIANT_CLASS_ARRAY:
switch (g_variant_type_peek_string (type)[1])
{
case G_VARIANT_CLASS_BYTE:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "";
ret = g_variant_ref_sink (g_variant_new_bytestring (s));
break;
case G_VARIANT_CLASS_STRING:
as = g_value_get_boxed (gvalue);
if (as == NULL)
as = empty_strv;
ret = g_variant_ref_sink (g_variant_new_strv (as, -1));
break;
case G_VARIANT_CLASS_OBJECT_PATH:
as = g_value_get_boxed (gvalue);
if (as == NULL)
as = empty_strv;
ret = g_variant_ref_sink (g_variant_new_objv (as, -1));
break;
case G_VARIANT_CLASS_ARRAY:
switch (g_variant_type_peek_string (type)[2])
{
case G_VARIANT_CLASS_BYTE:
as = g_value_get_boxed (gvalue);
if (as == NULL)
as = empty_strv;
ret = g_variant_ref_sink (g_variant_new_bytestring_array (as, -1));
break;
default:
ret = g_value_dup_variant (gvalue);
break;
}
break;
default:
ret = g_value_dup_variant (gvalue);
break;
}
break;
case G_VARIANT_CLASS_HANDLE:
case G_VARIANT_CLASS_VARIANT:
case G_VARIANT_CLASS_MAYBE:
case G_VARIANT_CLASS_TUPLE:
case G_VARIANT_CLASS_DICT_ENTRY:
ret = g_value_dup_variant (gvalue);
break;
}
}
/* Could be that the GValue is holding a NULL GVariant - in that case,
* we return an "empty" GVariant instead of a NULL GVariant
*/
if (ret == NULL)
{
GVariant *untrusted_empty;
untrusted_empty = g_variant_new_from_data (type, NULL, 0, FALSE, NULL, NULL);
ret = g_variant_ref_sink (g_variant_get_normal_form (untrusted_empty));
g_variant_unref (untrusted_empty);
}
g_assert (!g_variant_is_floating (ret));
return ret;
}
