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authorMatthias Schiffer <mschiffer@universe-factory.net>2012-02-08 16:09:45 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2012-02-08 16:09:45 +0100
commit541c5bedec87ebeba298c598f4108a5dc47bfc58 (patch)
tree8b60182b687cf15454ce1b6606ce3fc18ecba201 /DBus.py
parentfdce6479b90dbeef5ca1857b58e6a37ec21978fd (diff)
downloadpylock-541c5bedec87ebeba298c598f4108a5dc47bfc58.tar
pylock-541c5bedec87ebeba298c598f4108a5dc47bfc58.zip
Added DBus interface
Diffstat (limited to 'DBus.py')
-rw-r--r--DBus.py66
1 files changed, 66 insertions, 0 deletions
diff --git a/DBus.py b/DBus.py
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--- /dev/null
+++ b/DBus.py
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+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)