swarm: fix timer Leak in the dial loop

Ensure we never leak timers out of the dial loop. See https://discuss.ipfs.tech/t/constant-100-cpu-utilization-on-aws-ec2-ipfs-node/17172
libp2p · Nov 6, 2023 · 58d373c · 58d373c
1 parent 4e2a16d
commit 58d373c
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/p2p/net/swarm/dial_worker.go b/p2p/net/swarm/dial_worker.go
@@ -120,6 +120,8 @@ func (w *dialWorker) loop() {
 	startTime := w.cl.Now()
 	// dialTimer is the dialTimer used to trigger dials
 	dialTimer := w.cl.InstantTimer(startTime.Add(math.MaxInt64))
+	defer dialTimer.Stop()
+
 	timerRunning := true
 	// scheduleNextDial updates timer for triggering the next dial
 	scheduleNextDial := func() {