do not ignore FIN tcp packet

communicator/config.go

@@ -13,7 +13,6 @@ const (
 
 var (
 	communicatePort int
-	// capturePacketRate float64
 	router = mux.NewRouter()
 )
 
@@ -21,15 +20,14 @@ var (
 	configMapLock     sync.RWMutex
 	configMap         map[string]configItem
 	catpurePacketRate *capturePacketRateConfig
+	catpurePacketRateVal float64
 )
 
 func init() {
 	catpurePacketRate = newCapturePacketRateConfig()
 
 	flag.IntVar(&communicatePort, "communicate_port", 8088, "http server port. Default is 8088")
-	var cpr float64
-	flag.Float64Var(&cpr, CAPTURE_PACKET_RATE, 0.01, "capture packet rate. Default is 0.01")
-	_ = catpurePacketRate.setVal(cpr)
+	flag.Float64Var(&catpurePacketRateVal, CAPTURE_PACKET_RATE, 0.01, "capture packet rate. Default is 0.01")
 
 	configMap = make(map[string]configItem)
 }

communicator/controller.go

@@ -11,6 +11,8 @@ import (
 )
 
 func Server() {
+	initConfig()
+
 	server := &http.Server{
 		Addr:        "0.0.0.0:" + strconv.Itoa(communicatePort),
 		IdleTimeout: time.Second * 5,
@@ -22,6 +24,10 @@ func Server() {
 	}
 }
 
+func initConfig()  {
+	_ = catpurePacketRate.setVal(catpurePacketRateVal)
+}
+
 func outletCheckAlive(resp http.ResponseWriter, req *http.Request) {
 	mp := hu.NewMouthpiece(resp)
 	defer func() {