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//usr/lib/python2.4/site-packages/dbus/decorators.py
import _util import inspect import dbus_bindings def method(dbus_interface, in_signature=None, out_signature=None, async_callbacks=None, sender_keyword=None): _util._validate_interface_or_name(dbus_interface) def decorator(func): args = inspect.getargspec(func)[0] args.pop(0) if async_callbacks: if type(async_callbacks) != tuple: raise TypeError('async_callbacks must be a tuple of (keyword for return callback, keyword for error callback)') if len(async_callbacks) != 2: raise ValueError('async_callbacks must be a tuple of (keyword for return callback, keyword for error callback)') args.remove(async_callbacks[0]) args.remove(async_callbacks[1]) if sender_keyword: args.remove(sender_keyword) if in_signature: in_sig = tuple(dbus_bindings.Signature(in_signature)) if len(in_sig) > len(args): raise ValueError, 'input signature is longer than the number of arguments taken' elif len(in_sig) < len(args): raise ValueError, 'input signature is shorter than the number of arguments taken' func._dbus_is_method = True func._dbus_async_callbacks = async_callbacks func._dbus_interface = dbus_interface func._dbus_in_signature = in_signature func._dbus_out_signature = out_signature func._dbus_sender_keyword = sender_keyword func._dbus_args = args return func return decorator def signal(dbus_interface, signature=None): _util._validate_interface_or_name(dbus_interface) def decorator(func): def emit_signal(self, *args, **keywords): func(self, *args, **keywords) message = dbus_bindings.Signal(self._object_path, dbus_interface, func.__name__) iter = message.get_iter(True) if emit_signal._dbus_signature: signature = tuple(dbus_bindings.Signature(emit_signal._dbus_signature)) for (arg, sig) in zip(args, signature): iter.append_strict(arg, sig) else: for arg in args: iter.append(arg) self._connection.send(message) args = inspect.getargspec(func)[0] args.pop(0) if signature: sig = tuple(dbus_bindings.Signature(signature)) if len(sig) > len(args): raise ValueError, 'signal signature is longer than the number of arguments provided' elif len(sig) < len(args): raise ValueError, 'signal signature is shorter than the number of arguments provided' emit_signal.__name__ = func.__name__ emit_signal.__doc__ = func.__doc__ emit_signal._dbus_is_signal = True emit_signal._dbus_interface = dbus_interface emit_signal._dbus_signature = signature emit_signal._dbus_args = args return emit_signal return decorator def explicitly_pass_message(func): func._dbus_pass_message = True return func