Use C++ atomic instead of compiler builtins.

[simgrid.git] / src / kernel / context / ContextUnix.hpp

diff --git a/src/kernel/context/ContextUnix.hpp b/src/kernel/context/ContextUnix.hpp
index 91badf2..471b11f 100644 (file)
--- a/src/kernel/context/ContextUnix.hpp
+++ b/src/kernel/context/ContextUnix.hpp
@@ -8,6 +8,7 @@
 
 #include <ucontext.h> /* context relative declarations */
 
+#include <atomic>
 #include <cstdint>
 #include <functional>
 #include <vector>
@@ -76,7 +77,7 @@ public:
 private:
   static simgrid::xbt::Parmap<smx_actor_t>* parmap_;
   static std::vector<ParallelUContext*> workers_context_;
-  static uintptr_t threads_working_;
+  static std::atomic<uintptr_t> threads_working_;
   static xbt_os_thread_key_t worker_id_key_;
 };
 #endif