67 lines
2.4 KiB
Python
67 lines
2.4 KiB
Python
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from gi.repository import GLib, Gio
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from ctypes import CDLL, POINTER, Structure, CFUNCTYPE, pointer
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from ctypes import c_void_p, c_char_p, c_bool
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from ctypes.util import find_library
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from functools import partial
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dbus_xml = '''
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<node>
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<interface name="net.universe_factory.Pylock">
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<method name="Lock"/>
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</interface>
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</node>
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'''
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gio = CDLL(find_library('gio-2.0'))
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nodeInfo = Gio.DBusNodeInfo.new_for_xml(dbus_xml)
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interfaceInfo = nodeInfo.lookup_interface('net.universe_factory.Pylock')
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METHOD_CALL_FUNC = CFUNCTYPE(None, c_void_p, c_char_p, c_char_p, c_char_p, c_char_p, c_void_p, c_void_p, c_void_p)
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GET_PROPERTY_FUNC = CFUNCTYPE(c_void_p, c_void_p, c_char_p, c_char_p, c_char_p, c_char_p, c_void_p, c_void_p)
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SET_PROPERTY_FUNC = CFUNCTYPE(c_bool, c_void_p, c_char_p, c_char_p, c_char_p, c_char_p, c_void_p, c_void_p, c_void_p)
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def method_call(locker, connection, sender, object_path, interface_name, method_name, parameters, invocation, user_data):
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assert str(method_name, 'ascii') == 'Lock'
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locker.lock()
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gio.g_dbus_method_invocation_return_value(invocation, hash(GLib.Variant.new_tuple()))
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@GET_PROPERTY_FUNC
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def get_property(connection, sender, object_path, interface_name, property_name, error, user_data):
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assert False
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@SET_PROPERTY_FUNC
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def set_property(connection, sender, object_path, interface_name, property_name, value, error, user_data):
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assert False
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class VTable(Structure):
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_fields_ = [
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("method_call", METHOD_CALL_FUNC),
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("get_property", GET_PROPERTY_FUNC),
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("set_property", SET_PROPERTY_FUNC)
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]
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def __init__(self, locker):
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Structure.__init__(self)
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self.method_call = METHOD_CALL_FUNC(partial(method_call, locker))
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self.get_property = get_property
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self.set_property = set_property
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gio.g_dbus_connection_register_object.argtypes = [c_void_p, c_char_p, c_void_p, POINTER(VTable), c_void_p, c_void_p, c_void_p]
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gio.g_dbus_method_invocation_return_value.argtypes = [c_void_p, c_void_p]
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class DBus(object):
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def __init__(self, locker):
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self.vtable = VTable(locker)
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Gio.bus_own_name(Gio.BusType.SESSION, 'net.universe_factory.Pylock', Gio.BusNameOwnerFlags.NONE, self.bus_aquired, None, None)
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def bus_aquired(self, connection, name):
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b = lambda s: bytes(s, 'ascii')
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gio.g_dbus_connection_register_object(c_void_p(hash(connection)), b('/net/universe_factory/Pylock'), c_void_p(hash(interfaceInfo)), pointer(self.vtable), None, None, None)
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