rt: Fix the atomic get_ref_count method to avoid races

1 files changed, 10 insertions, 0 deletions

diff --git a/src/rt/sync/sync.h b/src/rt/sync/sync.h
index e7d7496a56a..66682f11e9c 100644
--- a/src/rt/sync/sync.h
+++ b/src/rt/sync/sync.h
@@ -29,6 +29,16 @@ public:
     static T decrement(T &address) {
         return __sync_sub_and_fetch(&address, 1);
     }
+
+    template <class T>
+    static T read(T *address) {
+        return __sync_add_and_fetch(address, 0);
+    }
+
+    template <class T>
+    static T read(T &address) {
+        return __sync_add_and_fetch(&address, 0);
+    }
 };
 
 #endif /* SYNC_H */