network.py 文件源码

def get(self):
        host = self.config.get('destination', self.hostname)

        try:
            ip = yield reactor.resolve(host)
        except:
            ip = None

        if ip:
            try:
                loss, latency = yield icmp.ping(ip, 5)
            except:
                loss, latency = 100, None

            event = [self.createEvent('ok', '%s%% loss to %s' % (loss, host),
                                      loss, prefix="loss")]

            if latency:
                event.append(self.createEvent('ok', 'Latency to %s' % host,
                                              latency, prefix="latency"))
        else:
            event = [self.createEvent('critical', 'Unable to resolve %s' % host,
                                      100, prefix="loss")]

        defer.returnValue(event)