localGATT.py 文件源码

def __init__(self,
                 descriptor_id,
                 uuid,
                 characteristic_obj,
                 value,
                 flags):
        """Default initialiser.

        1. Registers the descriptor on the D-Bus.
        2. Sets up the service UUID and primary flags.

        :param descriptor_id: A unique identifier for this descriptor
        :param uuid: descriptor BLE UUID
        :param characteristic_obj: The characteristic that this descriptor
                                   is related to
        :param value: The initial value of the descriptor
        :param flags: Flags specifying access permissions
        """
        # Setup D-Bus object paths and register service
        PATH_BASE = characteristic_obj.get_path() + '/desc'
        self.path = PATH_BASE + str('{0:04d}'.format(descriptor_id))
        self.bus = dbus.SystemBus()
        dbus.service.Object.__init__(self, self.bus, self.path)
        self.props = {
            constants.GATT_DESC_IFACE: {
                'UUID': uuid,
                'Characteristic': characteristic_obj.get_path(),
                'Value': value,
                'Flags': flags}
        }
        for prop in self.props[constants.GATT_DESC_IFACE].keys():
            self.Set(constants.GATT_DESC_IFACE,
                     prop,
                     self.props[constants.GATT_DESC_IFACE][prop])