src/kernel/activity/ConditionVariableImpl.hpp

   1 /* Copyright (c) 2012-2019. The SimGrid Team. All rights reserved.          */
   2
   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. */
   5
   6 #ifndef SIMGRID_KERNEL_ACTIVITY_CONDITIONVARIABLEIMPL_HPP
   7 #define SIMGRID_KERNEL_ACTIVITY_CONDITIONVARIABLEIMPL_HPP
   8
   9 #include "simgrid/s4u/ConditionVariable.hpp"
  10 #include "src/kernel/actor/ActorImpl.hpp"
  11 #include <boost/intrusive/list.hpp>
  12
  13 namespace simgrid {
  14 namespace kernel {
  15 namespace activity {
  16
  17 class XBT_PUBLIC ConditionVariableImpl {
  18 public:
  19   ConditionVariableImpl();
  20   ~ConditionVariableImpl();
  21
  22   actor::SynchroList sleeping_; /* list of sleeping processes */
  23   MutexImpl* mutex_ = nullptr;
  24   s4u::ConditionVariable cond_;
  25
  26   void broadcast();
  27   void signal();
  28   void wait(MutexImpl* mutex, double timeout, actor::ActorImpl* issuer);
  29
  30 private:
  31   std::atomic_int_fast32_t refcount_{1};
  32   friend void intrusive_ptr_add_ref(ConditionVariableImpl* cond);
  33   friend void intrusive_ptr_release(ConditionVariableImpl* cond);
  34 };
  35 } // namespace activity
  36 } // namespace kernel
  37 } // namespace simgrid
  38
  39 #endif