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[simgrid.git] / include / simgrid / s4u / Barrier.hpp

diff --git a/include/simgrid/s4u/Barrier.hpp b/include/simgrid/s4u/Barrier.hpp
index 4b57898..cd87e07 100644 (file)
--- a/include/simgrid/s4u/Barrier.hpp
+++ b/include/simgrid/s4u/Barrier.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2018-2019. 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. */
@@ -6,10 +6,12 @@
 #ifndef SIMGRID_S4U_BARRIER_HPP
 #define SIMGRID_S4U_BARRIER_HPP
 
-#include "simgrid/s4u/ConditionVariable.hpp"
+#include <simgrid/forward.h>
+#include <simgrid/s4u/ConditionVariable.hpp>
 #include <simgrid/chrono.hpp>
 #include <simgrid/s4u/Mutex.hpp>
 
+#include <atomic>
 #include <future>
 
 namespace simgrid {
@@ -22,15 +24,29 @@ private:
   unsigned int expected_processes_;
   unsigned int arrived_processes_ = 0;
 
+  /* refcounting */
+  std::atomic_int_fast32_t refcount_{0};
+
 public:
   explicit Barrier(unsigned int count);
   ~Barrier()              = default;
+#ifndef DOXYGEN
   Barrier(Barrier const&) = delete;
   Barrier& operator=(Barrier const&) = delete;
+#endif
+
+  /** Constructs a new barrier */
+  static BarrierPtr create(unsigned int expected_processes);
 
   int wait();
+
+#ifndef DOXYGEN
+  /* refcounting */
+  friend XBT_PUBLIC void intrusive_ptr_add_ref(Barrier* barrier);
+  friend XBT_PUBLIC void intrusive_ptr_release(Barrier* barrier);
+#endif
 };
-}
-} // namespace simgrid::s4u
+} // namespace s4u
+} // namespace simgrid
 
 #endif