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have only one refcounting system for the activities
[simgrid.git] / src / kernel / activity / ActivityImpl.hpp
1 /* Copyright (c) 2007-2016. 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_ACTIVITYIMPL_HPP
7 #define SIMGRID_KERNEL_ACTIVITY_ACTIVITYIMPL_HPP
8
9 #include <string>
10 #include <list>
11
12 #include <xbt/base.h>
13 #include "simgrid/forward.h"
14
15 #include <atomic>
16 #include <simgrid/simix.hpp>
17
18 namespace simgrid {
19 namespace kernel {
20 namespace activity {
21
22   XBT_PUBLIC_CLASS ActivityImpl {
23   public:
24     ActivityImpl();
25     virtual ~ActivityImpl();
26     e_smx_state_t state = SIMIX_WAITING; /* State of the activity */
27     std::string name;                    /* Activity name if any */
28     std::list<smx_simcall_t> simcalls;   /* List of simcalls waiting for this activity */
29
30     virtual void suspend()=0;
31     virtual void resume()=0;
32     virtual void post() =0; // What to do when a simcall terminates
33
34     // boost::intrusive_ptr<Activity> support:
35     friend void intrusive_ptr_add_ref(ActivityImpl * activity)
36     {
37       activity->ref();
38     }
39
40     friend void intrusive_ptr_release(ActivityImpl * activity)
41     {
42       activity->unref();
43     }
44
45     /** @brief Increases the refcount */
46     void ref();
47     /** @brief Reduces the refcount */
48     void unref();
49
50   private:
51     std::atomic_int_fast32_t refcount_{1};
52   };
53 }}} // namespace simgrid::kernel::activity
54
55 #endif /* SIMGRID_KERNEL_ACTIVITY_ACTIVITYIMPL_HPP */