-/* Copyright (c) 2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2018-2022. 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. */
-#ifndef SIMGRID_S4U_BARRIERHPP
+#ifndef SIMGRID_S4U_BARRIER_HPP
#define SIMGRID_S4U_BARRIER_HPP
-#include "simgrid/s4u/ConditionVariable.hpp"
+#include <simgrid/barrier.h>
#include <simgrid/chrono.hpp>
+#include <simgrid/forward.h>
+#include <simgrid/s4u/ConditionVariable.hpp>
#include <simgrid/s4u/Mutex.hpp>
+#include <atomic>
#include <future>
namespace simgrid {
class XBT_PUBLIC Barrier {
private:
- MutexPtr mutex_;
- ConditionVariablePtr cond_;
- unsigned int expected_processes_;
- unsigned int arrived_processes_ = 0;
+ MutexPtr mutex_ = Mutex::create();
+ ConditionVariablePtr cond_ = ConditionVariable::create();
+ unsigned int expected_actors_;
+ unsigned int arrived_actors_ = 0;
+
+ /* refcounting */
+ std::atomic_int_fast32_t refcount_{0};
public:
- explicit Barrier(unsigned int count);
- ~Barrier() = default;
+ /** Creates a barrier for the given amount of actors */
+ explicit Barrier(unsigned int expected_actors) : expected_actors_(expected_actors) {}
+#ifndef DOXYGEN
Barrier(Barrier const&) = delete;
Barrier& operator=(Barrier const&) = delete;
+#endif
+ /** Creates a barrier for the given amount of actors */
+ static BarrierPtr create(unsigned int expected_actors);
+ /** Blocks into the barrier. Every waiting actors will be unlocked once the expected amount of actors reaches the barrier */
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
