1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
# Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from gi.repository import GLib, Gio
from ctypes import CDLL, POINTER, Structure, CFUNCTYPE, pointer
from ctypes import c_void_p, c_char_p, c_bool
from ctypes.util import find_library
from functools import partial
dbus_xml = '''
<node>
<interface name="net.universe_factory.Pylock">
<method name="Lock"/>
</interface>
</node>
'''
gio = CDLL(find_library('gio-2.0'))
nodeInfo = Gio.DBusNodeInfo.new_for_xml(dbus_xml)
interfaceInfo = nodeInfo.lookup_interface('net.universe_factory.Pylock')
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)
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)
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)
def method_call(locker, connection, sender, object_path, interface_name, method_name, parameters, invocation, user_data):
assert str(method_name, 'ascii') == 'Lock'
locker.lock()
gio.g_dbus_method_invocation_return_value(invocation, hash(GLib.Variant.new_tuple()))
@GET_PROPERTY_FUNC
def get_property(connection, sender, object_path, interface_name, property_name, error, user_data):
assert False
@SET_PROPERTY_FUNC
def set_property(connection, sender, object_path, interface_name, property_name, value, error, user_data):
assert False
class VTable(Structure):
_fields_ = [
("method_call", METHOD_CALL_FUNC),
("get_property", GET_PROPERTY_FUNC),
("set_property", SET_PROPERTY_FUNC)
]
def __init__(self, locker):
Structure.__init__(self)
self.method_call = METHOD_CALL_FUNC(partial(method_call, locker))
self.get_property = get_property
self.set_property = set_property
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]
gio.g_dbus_method_invocation_return_value.argtypes = [c_void_p, c_void_p]
class DBus(object):
def __init__(self, locker):
self.vtable = VTable(locker)
Gio.bus_own_name(Gio.BusType.SESSION, 'net.universe_factory.Pylock', Gio.BusNameOwnerFlags.NONE, self.bus_aquired, None, None)
def bus_aquired(self, connection, name):
b = lambda s: bytes(s, 'ascii')
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)
|
