From: Martin Quinson <martin.quinson@loria.fr>
Date: Thu, 5 Oct 2017 06:21:33 +0000 (+0200)
Subject: this variable is accessed concurrently (thanks TSan)
X-Git-Tag: v3_17~17
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/e6b086a2fdd22931c0a2c75fbba13c50821d108c?ds=sidebyside

this variable is accessed concurrently (thanks TSan)
---

diff --git a/src/msg/msg_private.h b/src/msg/msg_private.h
index 33d241fb35..656d67fc6e 100644
--- a/src/msg/msg_private.h
+++ b/src/msg/msg_private.h
@@ -12,6 +12,8 @@
 #include "src/kernel/activity/ExecImpl.hpp"
 #include "xbt/Extendable.hpp"
 
+#include <atomic>
+
 /**************** datatypes **********************************/
 /**************************** Host Extension *********************************/
 namespace simgrid {
@@ -90,7 +92,7 @@ public:
 /************************** Global variables ********************************/
 typedef struct MSG_Global {
   int debug_multiple_use;       /* whether we want an error message when reusing the same Task for 2 things */
-  unsigned long int sent_msg;   /* Total amount of messages sent during the simulation */
+  std::atomic_int_fast32_t sent_msg; /* Total amount of messages sent during the simulation */
   void (*task_copy_callback) (msg_task_t task, msg_process_t src, msg_process_t dst);
   void_f_pvoid_t process_data_cleanup;
 } s_MSG_Global_t;