From 1fa87babb32ea85ff5a97ab93525ae13f66a0eef Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Tue, 10 Nov 2020 02:02:36 +0300
Subject: [PATCH] Fix TcpListener re-init.

---
 tdnet/td/net/TcpListener.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tdnet/td/net/TcpListener.cpp b/tdnet/td/net/TcpListener.cpp
index 5dac7bcbe..d42da9bd7 100644
--- a/tdnet/td/net/TcpListener.cpp
+++ b/tdnet/td/net/TcpListener.cpp
@@ -40,6 +40,9 @@ void TcpListener::tear_down() {
 void TcpListener::loop() {
   if (server_fd_.empty()) {
     start_up();
+    if (server_fd_.empty()) {
+      return;
+    }
   }
   sync_with_poll(server_fd_);
   while (can_read_local(server_fd_)) {