X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/94a6ea22dbd2f12d1015925d3c3fe7a95b38d2e3..cb6448e71a64791c262d6c40c050cc0b8d8ed184:/include/simgrid/s4u/mutex.hpp?ds=sidebyside

diff --git a/include/simgrid/s4u/mutex.hpp b/include/simgrid/s4u/mutex.hpp
index 201f0710a9..ff60143540 100644
--- a/include/simgrid/s4u/mutex.hpp
+++ b/include/simgrid/s4u/mutex.hpp
@@ -6,6 +6,7 @@
 #ifndef SIMGRID_S4U_MUTEX_HPP
 #define SIMGRID_S4U_MUTEX_HPP
 
+#include <mutex>
 #include <utility>
 
 #include <boost/intrusive_ptr.hpp>
@@ -15,8 +16,10 @@
 namespace simgrid {
 namespace s4u {
 
-XBT_PUBLIC_CLASS Mutex {
+class ConditionVariable;
 
+XBT_PUBLIC_CLASS Mutex {
+friend ConditionVariable;
 public:
   Mutex() :
     mutex_(simcall_mutex_init()) {}
@@ -56,6 +59,7 @@ public:
 private:
   simgrid::simix::Mutex* mutex_;
 };
+
 }} // namespace simgrid::s4u
 
 #endif /* SIMGRID_S4U_MUTEX_HPP */