C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// """Implementation for dbus.Bus. Not to be imported directly.""" # Copyright (C) 2003, 2004, 2005, 2006 Red Hat Inc. # Copyright (C) 2003 David Zeuthen # Copyright (C) 2004 Rob Taylor # Copyright (C) 2005, 2006 Collabora Ltd. # # Permission is hereby granted, free of charge, to any person # obtaining a copy of this software and associated documentation # files (the "Software"), to deal in the Software without # restriction, including without limitation the rights to use, copy, # modify, merge, publish, distribute, sublicense, and/or sell copies # of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be # included in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT # HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER # DEALINGS IN THE SOFTWARE. from __future__ import generators __all__ = ('Bus', 'SystemBus', 'SessionBus', 'StarterBus') __docformat__ = 'reStructuredText' from dbus.exceptions import DBusException from _dbus_bindings import ( BUS_DAEMON_IFACE, BUS_DAEMON_NAME, BUS_DAEMON_PATH, BUS_SESSION, BUS_STARTER, BUS_SYSTEM, DBUS_START_REPLY_ALREADY_RUNNING, DBUS_START_REPLY_SUCCESS, validate_bus_name, validate_interface_name, validate_member_name, validate_object_path) from dbus.bus import BusConnection from dbus.lowlevel import SignalMessage from dbus._compat import is_py2 if is_py2: from _dbus_bindings import UTF8String class Bus(BusConnection): """A connection to one of three possible standard buses, the SESSION, SYSTEM, or STARTER bus. This class manages shared connections to those buses. If you're trying to subclass `Bus`, you may be better off subclassing `BusConnection`, which doesn't have all this magic. """ _shared_instances = {} def __new__(cls, bus_type=BusConnection.TYPE_SESSION, private=False, mainloop=None): """Constructor, returning an existing instance where appropriate. The returned instance is actually always an instance of `SessionBus`, `SystemBus` or `StarterBus`. :Parameters: `bus_type` : cls.TYPE_SESSION, cls.TYPE_SYSTEM or cls.TYPE_STARTER Connect to the appropriate bus `private` : bool If true, never return an existing shared instance, but instead return a private connection. :Deprecated: since 0.82.3. Use dbus.bus.BusConnection for private connections. `mainloop` : dbus.mainloop.NativeMainLoop The main loop to use. The default is to use the default main loop if one has been set up, or raise an exception if none has been. :Changed: in dbus-python 0.80: converted from a wrapper around a Connection to a Connection subclass. """ if (not private and bus_type in cls._shared_instances): return cls._shared_instances[bus_type] # this is a bit odd, but we create instances of the subtypes # so we can return the shared instances if someone tries to # construct one of them (otherwise we'd eg try and return an # instance of Bus from __new__ in SessionBus). why are there # three ways to construct this class? we just don't know. if bus_type == BUS_SESSION: subclass = SessionBus elif bus_type == BUS_SYSTEM: subclass = SystemBus elif bus_type == BUS_STARTER: subclass = StarterBus else: raise ValueError('invalid bus_type %s' % bus_type) bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop) bus._bus_type = bus_type if not private: cls._shared_instances[bus_type] = bus return bus def close(self): t = self._bus_type if self.__class__._shared_instances.get(t) is self: del self.__class__._shared_instances[t] super(Bus, self).close() def get_connection(self): """Return self, for backwards compatibility with earlier dbus-python versions where Bus was not a subclass of Connection. :Deprecated: since 0.80.0 """ return self _connection = property(get_connection, None, None, """self._connection == self, for backwards compatibility with earlier dbus-python versions where Bus was not a subclass of Connection.""") def get_session(private=False): """Static method that returns a connection to the session bus. :Parameters: `private` : bool If true, do not return a shared connection. """ return SessionBus(private=private) get_session = staticmethod(get_session) def get_system(private=False): """Static method that returns a connection to the system bus. :Parameters: `private` : bool If true, do not return a shared connection. """ return SystemBus(private=private) get_system = staticmethod(get_system) def get_starter(private=False): """Static method that returns a connection to the starter bus. :Parameters: `private` : bool If true, do not return a shared connection. """ return StarterBus(private=private) get_starter = staticmethod(get_starter) def __repr__(self): if self._bus_type == BUS_SESSION: name = 'session' elif self._bus_type == BUS_SYSTEM: name = 'system' elif self._bus_type == BUS_STARTER: name = 'starter' else: name = 'unknown bus type' return '<%s.%s (%s) at %#x>' % (self.__class__.__module__, self.__class__.__name__, name, id(self)) __str__ = __repr__ # FIXME: Drop the subclasses here? I can't think why we'd ever want # polymorphism class SystemBus(Bus): """The system-wide message bus.""" def __new__(cls, private=False, mainloop=None): """Return a connection to the system bus. :Parameters: `private` : bool If true, never return an existing shared instance, but instead return a private connection. `mainloop` : dbus.mainloop.NativeMainLoop The main loop to use. The default