event.h
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1 /*
2  * Copyright (C) 2006-2008 by Marc Boris Duerner
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
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11  * instantiate templates or use macros or inline functions from this
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22  * Lesser General Public License for more details.
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27  */
28 
29 #ifndef cxxtools_EVENT_H
30 #define cxxtools_EVENT_H
31 
32 #include <typeinfo>
33 #include <cxxtools/allocator.h>
34 
35 namespace cxxtools
36 {
37 
45  class Event
46  {
47  public:
50  virtual ~Event()
51  {}
52 
53  virtual Event& clone(Allocator& allocator) const = 0;
54 
55  virtual void destroy(Allocator& allocator) = 0;
56 
57  virtual const std::type_info& typeInfo() const = 0;
58  };
59 
60  template <typename T>
61  class BasicEvent : public Event
62  {
63  public:
65  {
66  }
67 
68  BasicEvent(const BasicEvent& src)
69  {
70  }
71 
72  virtual const std::type_info& typeInfo() const
73  {
74  return typeid(T);
75  }
76 
77  virtual Event& clone(Allocator& allocator) const
78  {
79  void* pEvent = allocator.allocate(sizeof(T));
80  return *(new (pEvent)T(*static_cast<const T*>(this)));
81  }
82 
83  virtual void destroy(Allocator& allocator)
84  {
85  this->~BasicEvent();
86  allocator.deallocate(this, sizeof(T));
87  }
88  };
89 
90 } // namespace cxxtools
91 
92 #endif