From 237f3e8524f3ed38e56d066182be329fd38c7fd2 Mon Sep 17 00:00:00 2001
From: christianEQ <christian@eqalpha.com>
Date: Tue, 26 Jan 2021 22:08:07 +0000
Subject: [PATCH] fixed race condition in connSocketWrite

Former-commit-id: d7f01c1f7d1bb2d6e0b004f532f7b98ed968d389
---
 src/connection.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/connection.cpp b/src/connection.cpp
index bd8f83f79..8f7c153d0 100644
--- a/src/connection.cpp
+++ b/src/connection.cpp
@@ -172,8 +172,8 @@ static int connSocketWrite(connection *conn, const void *data, size_t data_len)
         /* Don't overwrite the state of a connection that is not already
          * connected, not to mess with handler callbacks.
          */
-        if (conn->state == CONN_STATE_CONNECTED)
-            conn->state.store(CONN_STATE_ERROR, std::memory_order_relaxed);
+        ConnectionState expected = CONN_STATE_CONNECTED;
+        conn->state.compare_exchange_strong(expected, CONN_STATE_ERROR);
     }
 
     return ret;