From ed4d9195562842753411ebe491d2d66f46965a1a Mon Sep 17 00:00:00 2001
From: Gabriel Corona <gabriel.corona@loria.fr>
Date: Thu, 16 Jun 2016 15:12:27 +0200
Subject: [PATCH] [simix] Add warning about atomic operations

---
 src/simix/smx_process_private.h | 2 ++
 src/simix/smx_synchro_private.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/simix/smx_process_private.h b/src/simix/smx_process_private.h
index 837cc22d8e..29e0756fe6 100644
--- a/src/simix/smx_process_private.h
+++ b/src/simix/smx_process_private.h
@@ -72,12 +72,14 @@ public:
 
   friend void intrusive_ptr_add_ref(Process* process)
   {
+    // Atomic operation! Do not split in two instructions!
     auto previous = (process->refcount_)++;
     xbt_assert(previous != 0);
     (void) previous;
   }
   friend void intrusive_ptr_release(Process* process)
   {
+    // Atomic operation! Do not split in two instructions!
     auto count = --(process->refcount_);
     if (count == 0)
       delete process;
diff --git a/src/simix/smx_synchro_private.h b/src/simix/smx_synchro_private.h
index 21e76b467c..d9d039175a 100644
--- a/src/simix/smx_synchro_private.h
+++ b/src/simix/smx_synchro_private.h
@@ -36,12 +36,14 @@ public:
   // boost::intrusive_ptr<Mutex> support:
   friend void intrusive_ptr_add_ref(Mutex* mutex)
   {
+    // Atomic operation! Do not split in two instructions!
     auto previous = (mutex->refcount_)++;
     xbt_assert(previous != 0);
     (void) previous;
   }
   friend void intrusive_ptr_release(Mutex* mutex)
   {
+    // Atomic operation! Do not split in two instructions!
     auto count = --(mutex->refcount_);
     if (count == 0)
       delete mutex;
-- 
2.20.1