cut code

pkg/leakybucket/manager.go

@@ -375,6 +375,7 @@ func GarbageCollectBuckets(deadline time.Time, buckets *Buckets) error {
 		key := rkey.(string)
 		val := rvalue.(*Leaky)
 		total += 1
+		//bucket already overflowed, we can kill it
 		if !val.Ovflw_ts.IsZero() {
 			discard += 1
 			val.logger.Debugf("overflowed at %s.", val.Ovflw_ts)
@@ -388,6 +389,7 @@ func GarbageCollectBuckets(deadline time.Time, buckets *Buckets) error {
 		tokcapa := float64(val.Capacity)
 		tokat = math.Round(tokat*100) / 100
 		tokcapa = math.Round(tokcapa*100) / 100
+		//bucket actually underflowed based on log time, but no in real time
 		if tokat >= tokcapa {
 			BucketsUnderflow.With(prometheus.Labels{"name": val.Name}).Inc()
 			val.logger.Debugf("UNDERFLOW : first_ts:%s tokens_at:%f capcity:%f", val.First_ts, tokat, tokcapa)
@@ -412,7 +414,14 @@ func GarbageCollectBuckets(deadline time.Time, buckets *Buckets) error {
 	return nil
 }
 
-func DumpBucketsStateAt(file string, deadline time.Time, buckets *Buckets) error {
+func DumpBucketsStateAt(deadline time.Time, buckets *Buckets) (string, error) {
+	//var file string
+	tmpFd, err := ioutil.TempFile(os.TempDir(), "crowdsec-buckets-dump-")
+	if err != nil {
+		return "", fmt.Errorf("failed to create temp file : %s", err)
+	}
+	defer tmpFd.Close()
+	tmpFileName := tmpFd.Name()
 	serialized = make(map[string]Leaky)
 	log.Printf("Dumping buckets state at %s", deadline)
 	total := 0
@@ -455,11 +464,23 @@ func DumpBucketsStateAt(file string, deadline time.Time, buckets *Buckets) error
 	if err != nil {
 		log.Fatalf("Failed to unmarshal buckets : %s", err)
 	}
-	err = ioutil.WriteFile(file, bbuckets, 0644)
+	size, err := tmpFd.Write(bbuckets)
 	if err != nil {
-		log.Fatalf("Failed to write buckets state %s", err)
+		return "", fmt.Errorf("failed to write temp file : %s", err)
 	}
-	log.Warningf("Serialized %d live buckets state, %d total with %d expired to %s", len(serialized), total, discard, file)
+	log.Infof("Serialized %d live buckets (+%d expired) in %d bytes to %s", len(serialized), discard, size, tmpFd.Name())
+	serialized = nil
+	return tmpFileName, nil
+}
+
+func ShutdownAllBuckets(buckets *Buckets) error {
+	buckets.Bucket_map.Range(func(rkey, rvalue interface{}) bool {
+		key := rkey.(string)
+		val := rvalue.(*Leaky)
+		val.KillSwitch <- true
+		log.Infof("killed %s", key)
+		return true
+	})
 	return nil
 }