Mem leak fix

internal/web/api.go

@@ -1,7 +1,7 @@
 package web
 
 import (
-	// "log"
+	"log/slog"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
@@ -49,6 +49,8 @@ func apiHostDel(c *gin.Context) {
 	db.Delete(appConfig.DBPath, "now", host.ID)
 	allHosts = db.Select(appConfig.DBPath, "now")
 
+	slog.Info("Deleting from DB", "host", host)
+
 	c.IndentedJSON(http.StatusOK, "OK")
 }
 

internal/web/config.go

@@ -47,7 +47,7 @@ func saveConfigHandler(c *gin.Context) {
 
 	conf.Write(appConfig)
 
-	slog.Info("writing new config to " + appConfig.ConfPath)
+	slog.Info("Writing new config to " + appConfig.ConfPath)
 
 	updateRoutines() // routines-upd.go
 
@@ -76,7 +76,7 @@ func saveInfluxHandler(c *gin.Context) {
 
 	conf.Write(appConfig)
 
-	slog.Info("writing new config to " + appConfig.ConfPath)
+	slog.Info("Writing new config to " + appConfig.ConfPath)
 
 	c.Redirect(http.StatusFound, "/config")
 }

internal/web/routines-upd.go

@@ -7,6 +7,7 @@ import (
 )
 
 func updateRoutines() {
+	slog.Debug("Restarting go routines")
 
 	close(quitScan)
 
@@ -26,15 +27,20 @@ func setLogLevel() {
 
 	switch appConfig.LogLevel {
 	case "debug":
+		slog.Info("Log level=DEBUG")
 		level = slog.LevelDebug
 	case "info":
+		slog.Info("Log level=INFO")
 		level = slog.LevelInfo
 	case "warn":
+		slog.Info("Log level=WARN")
 		level = slog.LevelWarn
 	case "error":
+		slog.Info("Log level=ERROR")
 		level = slog.LevelError
 	default:
-		// invalid log level, handle error
+		slog.Error("Invalid log level. Setting default level INFO")
+		slog.SetLogLoggerLevel(slog.LevelInfo)
 	}
 	slog.SetLogLoggerLevel(level)
 }

internal/web/scan-routine.go

@@ -12,20 +12,25 @@ import (
 	"github.com/aceberg/WatchYourLAN/internal/notify"
 )
 
+var foundHostsMap map[string]models.Host
+var aHost, fHost models.Host
+var exists bool
+
 func startScan(quit chan bool) {
-	var lastDate time.Time
+	var lastDate, nowDate, plusDate time.Time
+	var foundHosts []models.Host
 
 	for {
 		select {
 		case <-quit:
 			return
 		default:
-			nowDate := time.Now()
+			nowDate = time.Now()
-			plusDate := lastDate.Add(time.Duration(appConfig.Timeout) * time.Second)
+			plusDate = lastDate.Add(time.Duration(appConfig.Timeout) * time.Second)
 
 			if nowDate.After(plusDate) {
 
-				foundHosts := arp.Scan(appConfig.Ifaces)
+				foundHosts = arp.Scan(appConfig.Ifaces)
 				compareHosts(foundHosts)
 				allHosts = db.Select(appConfig.DBPath, "now")
 				histHosts = db.Select(appConfig.DBPath, "history")
@@ -41,14 +46,14 @@ func startScan(quit chan bool) {
 func compareHosts(foundHosts []models.Host) {
 
 	// Make map of found hosts
-	foundHostsMap := make(map[string]models.Host)
+	foundHostsMap = make(map[string]models.Host)
-	for _, fHost := range foundHosts {
+	for _, fHost = range foundHosts {
 		foundHostsMap[fHost.Mac] = fHost
 	}
 
-	for _, aHost := range allHosts {
+	for _, aHost = range allHosts {
 
-		fHost, exists := foundHostsMap[aHost.Mac]
+		fHost, exists = foundHostsMap[aHost.Mac]
 		if exists {
 
 			aHost.Iface = fHost.Iface
@@ -70,7 +75,7 @@ func compareHosts(foundHosts []models.Host) {
 		}
 	}
 
-	for _, fHost := range foundHostsMap {
+	for _, fHost = range foundHostsMap {
 
 		msg := fmt.Sprintf("Unknown host IP: '%s', MAC: '%s', Hw: '%s', Iface: '%s'", fHost.IP, fHost.Mac, fHost.Hw, fHost.Iface)
 		slog.Warn(msg)