From 10f206b84ee1b3d052c83926500a4a43314633ef Mon Sep 17 00:00:00 2001
From: Sigma711 <1979934715@qq.com>
Date: Mon, 28 Aug 2023 19:02:34 -0400
Subject: [PATCH] [src] Fix the bug of check the thead pointer (nullpter) when
 destroying EventManager instances

---
 src/event_manager.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/event_manager.cc b/src/event_manager.cc
index 8a5d2bd6..ec9b7165 100644
--- a/src/event_manager.cc
+++ b/src/event_manager.cc
@@ -94,7 +94,7 @@ EventManager::~EventManager() {
   ::close(wake_up_pipe_[1]);
   delete wake_up_eventer_;
 #endif
-  if (thread_->joinable()) {
+  if (thread_ && thread_->joinable()) {
     thread_->join();
   }
 }