1 /* Copyright (c) 2018-2019. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #ifndef SIMGRID_S4U_BARRIER_HPP
7 #define SIMGRID_S4U_BARRIER_HPP
9 #include <simgrid/forward.h>
10 #include <simgrid/s4u/ConditionVariable.hpp>
11 #include <simgrid/chrono.hpp>
12 #include <simgrid/s4u/Mutex.hpp>
20 class XBT_PUBLIC Barrier {
23 ConditionVariablePtr cond_;
24 unsigned int expected_processes_;
25 unsigned int arrived_processes_ = 0;
28 std::atomic_int_fast32_t refcount_{0};
31 explicit Barrier(unsigned int count);
33 Barrier(Barrier const&) = delete;
34 Barrier& operator=(Barrier const&) = delete;
36 /** Constructs a new barrier */
37 static BarrierPtr create(unsigned int expected_processes);
42 friend XBT_PUBLIC void intrusive_ptr_add_ref(Barrier* barrier);
43 friend XBT_PUBLIC void intrusive_ptr_release(Barrier* barrier);
46 } // namespace simgrid::s4u