modernize a few simcall_execution_* calls

[simgrid.git] / src / kernel / activity / ActivityImpl.cpp

diff --git a/src/kernel/activity/ActivityImpl.cpp b/src/kernel/activity/ActivityImpl.cpp
index 43ed70f..ff1cb4b 100644 (file)
--- a/src/kernel/activity/ActivityImpl.cpp
+++ b/src/kernel/activity/ActivityImpl.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -9,19 +9,18 @@ namespace simgrid {
 namespace kernel {
 namespace activity {
 
-ActivityImpl::ActivityImpl()  = default;
-ActivityImpl::~ActivityImpl() = default;
-
 // boost::intrusive_ptr<Activity> support:
 void intrusive_ptr_add_ref(simgrid::kernel::activity::ActivityImpl* activity)
 {
-  activity->refcount_++;
+  activity->refcount_.fetch_add(1, std::memory_order_relaxed);
 }
 
 void intrusive_ptr_release(simgrid::kernel::activity::ActivityImpl* activity)
 {
-  if (activity->refcount_-- == 0)
+  if (activity->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
+    std::atomic_thread_fence(std::memory_order_acquire);
     delete activity;
+  }
 }
 }
 }