Zeroconf.py 文件源码

def unregisterService(self, info):
        """Unregister a service."""
        try:
            del(self.services[info.name.lower()])
        except Exception:
            pass
        now = currentTimeMillis()
        nextTime = now
        i = 0
        while i < 3:
            if now < nextTime:
                self.wait(nextTime - now)
                now = currentTimeMillis()
                continue
            out = DNSOutgoing(_FLAGS_QR_RESPONSE | _FLAGS_AA)
            out.addAnswerAtTime(DNSPointer(info.type, _TYPE_PTR, _CLASS_IN, 0, info.name), 0)
            out.addAnswerAtTime(DNSService(info.name, _TYPE_SRV, _CLASS_IN, 0, info.priority, info.weight, info.port, info.name), 0)
            out.addAnswerAtTime(DNSText(info.name, _TYPE_TXT, _CLASS_IN, 0, info.text), 0)
            if info.address:
                out.addAnswerAtTime(DNSAddress(info.server, _TYPE_A, _CLASS_IN, 0, info.address), 0)
            self.send(out)
            i += 1
            nextTime += _UNREGISTER_TIME