Close events channel when no status listener

2018-05-21 14:16:46 +02:00
parent 7472930d4e
commit 837a12c841
2 changed files with 10 additions and 3 deletions
--- a/tun_linux.go
+++ b/tun_linux.go
@@ -357,9 +357,13 @@ func (tun *NativeTun) Events() chan TUNEvent {

 func (tun *NativeTun) Close() error {
 	var err1 error
-	close(tun.statusListenersShutdown)
-	if tun.netlinkCancel != nil {
-		err1 = tun.netlinkCancel.Cancel()
+	if tun.statusListenersShutdown != nil {
+		close(tun.statusListenersShutdown)
+		if tun.netlinkCancel != nil {
+			err1 = tun.netlinkCancel.Cancel()
+		}
+	} else if tun.events != nil {
+		close(tun.events)
 	}
 	err2 := tun.fd.Close()
 	err3 := tun.fdCancel.Cancel()