From e2116e4c3f678ffe0aff56ffe0349a4e31296be3 Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Mon, 24 Feb 2020 12:39:46 +0300
Subject: [PATCH] network: don't deadlock on connection overflow

(*Peer).Disconnect send an unregister signal to this goroutine, so invoking it
from here is not a good idea, run it asynchronously.
---
 pkg/network/server.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkg/network/server.go b/pkg/network/server.go
index dacac6461..3e0eb6575 100644
--- a/pkg/network/server.go
+++ b/pkg/network/server.go
@@ -226,7 +226,8 @@ func (s *Server) run() {
 				s.lock.RLock()
 				// Pick a random peer and drop connection to it.
 				for peer := range s.peers {
-					peer.Disconnect(errMaxPeers)
+					// It will send us unregister signal.
+					go peer.Disconnect(errMaxPeers)
 					break
 				}
 				s.lock.RUnlock()