Fixed Windows service life-cycle.

cmd/yggdrasil/main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"context"
 	"crypto/ed25519"
 	"encoding/hex"
 	"encoding/json"
@@ -12,6 +11,7 @@ import (
 	"os/signal"
 	"regexp"
 	"strings"
+	"sync"
 	"syscall"
 
 	"github.com/gologme/log"
@@ -37,6 +37,11 @@ type node struct {
 	admin     *admin.AdminSocket
 }
 
+var (
+	sigCh  = make(chan os.Signal, 1)
+	doneCh = make(chan struct{})
+)
+
 // The main function is responsible for configuring and starting Yggdrasil.
 func main() {
 	genconf := flag.Bool("genconf", false, "print a new config to stdout")
@@ -54,11 +59,7 @@ func main() {
 	loglevel := flag.String("loglevel", "info", "loglevel to enable")
 	flag.Parse()
 	
-	// Catch interrupts from the operating system to exit gracefully.
-	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
-
-	// Capture the service being stopped on Windows.
-	minwinsvc.SetOnExit(cancel)
+	signal.Notify(sigCh, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
 
 	// Create a new logger that logs output to stdout.
 	var logger *log.Logger
@@ -272,14 +273,52 @@ func main() {
 		}
 	}
 	
-	// Block until we are told to shut down.
-	<-ctx.Done()
+	//Windows service shutdown service
+	minwinsvc.SetOnExit(func() {
+		logger.Infof("Shutting down service ...")
+		sigCh <- os.Interrupt
+		// Wait for all parts to shutdown properly
+		<-doneCh
+	})
 
-	// Shut down the node.
-	_ = n.admin.Stop()
-	_ = n.multicast.Stop()
-	_ = n.tun.Stop()
+	// Block until we are told to shut down.
+	<-sigCh
+
+	// Shut down the node using a wait group to synchronize
+	var wg sync.WaitGroup
+
+	wg.Add(3)
+
+	go func() {
+		defer wg.Done()
+		if err := n.admin.Stop(); err != nil {
+			logger.Errorf("Error stopping admin: %v", err)
+		}
+	}()
+
+	go func() {
+		defer wg.Done()
+		if err := n.multicast.Stop(); err != nil {
+			logger.Errorf("Error stopping multicast: %v", err)
+		}
+	}()
+
+	go func() {
+		defer wg.Done()
+		if err := n.tun.Stop(); err != nil {
+			logger.Errorf("Error stopping tun: %v", err)
+		}
+	}()
+
+	// Stop the core synchronously since it's not in a goroutine
 	n.core.Stop()
+
+	// Wait for all goroutines to finish
+	wg.Wait()
+
+	// Notify that shutdown is complete
+	close(doneCh)
+	close(sigCh)
 }
 
 func setLogLevel(loglevel string, logger *log.Logger) {