From e1df0b3c9088097724b8feba29b7d60d3dba5a5c Mon Sep 17 00:00:00 2001
From: SpyCheese <mikle98@yandex.ru>
Date: Thu, 12 Oct 2023 14:54:38 +0300
Subject: [PATCH] Check peers prior to saving it to local db (#779)

---
 overlay/overlay.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/overlay/overlay.cpp b/overlay/overlay.cpp
index a562beb6..fcf766fe 100644
--- a/overlay/overlay.cpp
+++ b/overlay/overlay.cpp
@@ -291,7 +291,11 @@ void OverlayImpl::alarm() {
       if (peers_.size() > 0) {
         std::vector<OverlayNode> vec;
         for (td::uint32 i = 0; i < 20; i++) {
-          vec.push_back(get_random_peer()->get());
+          auto P = get_random_peer();
+          if (!P) {
+            break;
+          }
+          vec.push_back(P->get());
         }
         td::actor::send_closure(manager_, &OverlayManager::save_to_db, local_id_, overlay_id_, std::move(vec));
       }