Method read_args

Scan/TestIn/host.py:195–230

Using kll.json, read the arguments from the args pointer. @returns: List of arguments

(self)

        return name, arg_definitions

    def read_args(self):
        '''
        Using kll.json, read the arguments from the args pointer.

        @returns: List of arguments
        '''
        name, arg_definitions = self.read_capability()

        # Build of args for namedtuple
        arg_names = [arg['name'] for arg in arg_definitions]
        ntuple = namedtuple(name, arg_names)

        # Build list of extracted arguments
        arg_values = []
        position = 0
        for arg in arg_definitions:
            value = None

            # Cast based on the width
            if arg['width'] == 1:
                value = cast(byref(self.args.contents, position), POINTER(c_uint8)).contents
                position += 1
            elif arg['width'] == 2:
                value = cast(byref(self.args.contents, position), POINTER(c_uint16)).contents
                position += 2
            elif arg['width'] == 4:
                value = cast(byref(self.args.contents, position), POINTER(c_uint32)).contents
                position += 4
            else:
                logger.error("Unknown width: {}", arg['width'])

            arg_values.append(value)

        # Build namedtuple with read values
        arg_values = tuple(arg_values)
        return ntuple(*arg_values)

    def __repr__(self):
        '''