コード例 #1
0
ファイル: geolookup.go プロジェクト: kidaa/lantern
func write() {
	consecutiveFailures := 0

	for {
		// Wait a random amount of time (to avoid looking too suspicious)
		// Note - rand was seeded with the startup time in flashlight.go
		n := rand.Intn(publishSecondsVariance)
		wait := time.Duration(basePublishSeconds-publishSecondsVariance/2+n) * time.Second

		oldIp := GetIp()
		oldCountry := GetCountry()

		newCountry, newIp, err := lookupIp(client.Load().(*http.Client))
		if err == nil {
			consecutiveFailures = 0
			if newIp != oldIp {
				log.Debugf("IP changed")
				ip.Store(newIp)
			}
			// Always publish location, even if unchanged
			pubsub.Pub(pubsub.IP, newIp)
			service.Out <- newCountry
		} else {
			msg := fmt.Sprintf("Unable to get current location: %s", err)
			// When retrying after a failure, wait a different amount of time
			retryWait := time.Duration(math.Pow(2, float64(consecutiveFailures))*float64(retryWaitMillis)) * time.Millisecond
			if retryWait < wait {
				log.Debug(msg)
				wait = retryWait
			} else {
				log.Error(msg)
			}
			log.Debugf("Waiting %v before retrying", wait)
			consecutiveFailures += 1
			// If available, publish last known location
			if oldCountry != "" {
				service.Out <- oldCountry
			}
		}

		time.Sleep(wait)
	}
}
コード例 #2
0
ファイル: geolookup.go プロジェクト: shizhh/lantern
func write() {
	consecutiveFailures := 0

	for {
		// Wait a random amount of time (to avoid looking too suspicious)
		// Note - rand was seeded with the startup time in flashlight.go
		n := rand.Intn(publishSecondsVariance)
		wait := time.Duration(basePublishSeconds-publishSecondsVariance/2+n) * time.Second

		oldLocation := GetLocation()
		newLocation, err := geolookup.LookupIPWithClient("", client.Load().(*http.Client))
		if err == nil {
			consecutiveFailures = 0
			if !reflect.DeepEqual(newLocation, oldLocation) {
				log.Debugf("Location changed")
				location.Store(newLocation)
				pubsub.Pub(pubsub.Location, newLocation)
			}
			// Always publish location, even if unchanged
			service.Out <- newLocation
		} else {
			msg := fmt.Sprintf("Unable to get current location: %s", err)
			// When retrying after a failure, wait a different amount of time
			retryWait := time.Duration(math.Pow(2, float64(consecutiveFailures))*float64(retryWaitMillis)) * time.Millisecond
			if retryWait < wait {
				log.Debug(msg)
				wait = retryWait
			} else {
				log.Error(msg)
			}
			log.Debugf("Waiting %v before retrying", wait)
			consecutiveFailures += 1
			// If available, publish last known location
			if oldLocation != nil {
				service.Out <- oldLocation
			}
		}

		time.Sleep(wait)
	}
}