localGATT.py 文件源码

def __init__(self, characteristic_id,
                 uuid,
                 service_obj,
                 value,
                 notifying,
                 flags):
        """Default initialiser.

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

        :param service_id:
        :param uuid: service BLE UUID
        :param service_obj: the service that this characteristic is part of
        :param value: the initial value of this characteristic
        :param notifying: boolean representing the state of notification
        :param flags:
        """
        # Setup D-Bus object paths and register service
        PATH_BASE = service_obj.get_path() + '/char'
        self.path = PATH_BASE + str('{0:04d}'.format(characteristic_id))
        self.bus = dbus.SystemBus()
        dbus.service.Object.__init__(self, self.bus, self.path)
        self.props = {
            constants.GATT_CHRC_IFACE: {
                'UUID': uuid,
                'Service': service_obj.get_path(),
                'Value': value,
                'Notifying': notifying,
                'Flags': flags}
        }

        for prop in self.props[constants.GATT_CHRC_IFACE].keys():
            self.Set(constants.GATT_CHRC_IFACE,
                     prop,
                     self.props[constants.GATT_CHRC_IFACE][prop])