From 8185979ca4bb25672d23fdcdb6f6b8f5d681f634 Mon Sep 17 00:00:00 2001
From: "Quentin McGaw (desktop)" <quentin.mcgaw@gmail.com>
Date: Fri, 16 Jul 2021 20:11:57 +0000
Subject: [PATCH] Fix: deadlock on dns shutdown when starting up

---
 internal/dns/loop.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/internal/dns/loop.go b/internal/dns/loop.go
index 0e6c2200..8f6a6a8e 100644
--- a/internal/dns/loop.go
+++ b/internal/dns/loop.go
@@ -96,7 +96,10 @@ func (l *looper) logAndWait(ctx context.Context, err error) {
 func (l *looper) signalOrSetStatus(userTriggered *bool, status models.LoopStatus) {
 	if *userTriggered {
 		*userTriggered = false
-		l.running <- status
+		select {
+		case l.running <- status:
+		default: // receiver droppped out - avoid deadlock on events routing when shutting down
+		}
 	} else {
 		l.state.SetStatus(status)
 	}