* stats: remove old code

dnsforward/querylog_file.go

@@ -178,99 +178,3 @@ func (l *queryLog) periodicQueryLogRotate() {
 		}
 	}
 }
-
-func (l *queryLog) genericLoader(onEntry func(entry *logEntry) error, needMore func() bool, timeWindow time.Duration) error {
-	now := time.Now()
-	// read from querylog files, try newest file first
-	var files []string
-
-	if enableGzip {
-		files = []string{
-			l.logFile + ".gz",
-			l.logFile + ".gz.1",
-		}
-	} else {
-		files = []string{
-			l.logFile,
-			l.logFile + ".1",
-		}
-	}
-
-	// read from all files
-	for _, file := range files {
-		if !needMore() {
-			break
-		}
-		if _, err := os.Stat(file); os.IsNotExist(err) {
-			// do nothing, file doesn't exist
-			continue
-		}
-
-		f, err := os.Open(file)
-		if err != nil {
-			log.Error("Failed to open file \"%s\": %s", file, err)
-			// try next file
-			continue
-		}
-		defer f.Close()
-
-		var d *json.Decoder
-
-		if enableGzip {
-			zr, err := gzip.NewReader(f)
-			if err != nil {
-				log.Error("Failed to create gzip reader: %s", err)
-				continue
-			}
-			defer zr.Close()
-			d = json.NewDecoder(zr)
-		} else {
-			d = json.NewDecoder(f)
-		}
-
-		i := 0
-		over := 0
-		max := 10000 * time.Second
-		var sum time.Duration
-		// entries on file are in oldest->newest order
-		// we want maxLen newest
-		for d.More() {
-			if !needMore() {
-				break
-			}
-			var entry logEntry
-			err := d.Decode(&entry)
-			if err != nil {
-				log.Error("Failed to decode: %s", err)
-				// next entry can be fine, try more
-				continue
-			}
-
-			if now.Sub(entry.Time) > timeWindow {
-				// log.Tracef("skipping entry") // debug logging
-				continue
-			}
-
-			if entry.Elapsed > max {
-				over++
-			} else {
-				sum += entry.Elapsed
-			}
-
-			i++
-			err = onEntry(&entry)
-			if err != nil {
-				return err
-			}
-		}
-		elapsed := time.Since(now)
-		var perunit time.Duration
-		var avg time.Duration
-		if i > 0 {
-			perunit = elapsed / time.Duration(i)
-			avg = sum / time.Duration(i)
-		}
-		log.Debug("file \"%s\": read %d entries in %v, %v/entry, %v over %v, %v avg", file, i, elapsed, perunit, over, max, avg)
-	}
-	return nil
-}