1
我有一個Python-DBus-API的問題。我創建了一個信號接收器並完成它的工作。但是,如果我嘗試刪除信號,它將不會被刪除,信號處理程序(sigHandler)每次信號匹配時都會愉快地被調用。
class A(threading.Thread)
bus = None
mainloop = None
systemBusMainLoop = None
signalReceiver = None
def __init__(self,dbusMainLoop):
log("Hello.")
super(A, self).__init__()
gobject.threads_init()
self.mainloop = gobject.MainLoop()
self.systemBusMainLoop = dbusMainLoop
self.bus = dbus.SystemBus(mainloop=dbusMainLoop)
self.signalReceiver = self.bus.add_signal_receiver(self.sigHandler,
bus_name="org.bluez",
dbus_interface="org.freedesktop.DBus.Properties",
signal_name="PropertiesChanged",
path_keyword="path")
def run(self):
self.mainloop.run()
log("Running.")
def end(self):
log("Shutting down...")
self.bus.remove_signal_receiver(self.sigHandler,
self.signalReceiver,
dbus_interface="org.freedesktop.DBus.Properties")
#self.signalReceiver.remove() #tried this also
if (self.mainloop):
self.mainloop.quit()
del self.signalReceiver
log("Bye.")
def sigHandler(self, interface, changed, invalidated, path)
print interface
print changed
print invalidated
print path
叫:
dbusA = A(dbusMainLoop=dbus.mainloop.glib.DBusGMainLoop())
dbusA.run()
#doing something unrelated
dbusA.end() #remove the Signal
del dbusA
我是否錯過了什麼?爲什麼我的sigHandler沒有被刪除(或者爲什麼我的匹配沒有被刪除)。
在此先感謝!