From f1d6b18668bdc7d2dc83a0e60fc1a2c0a74245ef Mon Sep 17 00:00:00 2001
From: "neskovic@gmail.com" <neskovic@gmail.com>
Date: Tue, 11 Aug 2020 20:04:08 +0200
Subject: [PATCH] Message counter: use relaxed/acquire memory ordering

---
 fairmq/shmem/Manager.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fairmq/shmem/Manager.h b/fairmq/shmem/Manager.h
index b923b11a..fbfd296d 100644
--- a/fairmq/shmem/Manager.h
+++ b/fairmq/shmem/Manager.h
@@ -391,8 +391,8 @@ class Manager
         }
     }
 
-    void IncrementMsgCounter() { ++fMsgCounter; }
-    void DecrementMsgCounter() { --fMsgCounter; }
+    void IncrementMsgCounter() { fMsgCounter.fetch_add(1, std::memory_order_relaxed); }
+    void DecrementMsgCounter() { fMsgCounter.fetch_sub(1, std::memory_order_relaxed); }
 
     void SendHeartbeats()
     {