1#ifndef BOOST_STATECHART_EVENT_HPP_INCLUDED
2#define BOOST_STATECHART_EVENT_HPP_INCLUDED
3//////////////////////////////////////////////////////////////////////////////
4// Copyright 2002-2007 Andreas Huber Doenni
5// Distributed under the Boost Software License, Version 1.0. (See accompany-
6// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7//////////////////////////////////////////////////////////////////////////////
8
9
10
11#include <boost/statechart/event_base.hpp>
12#include <boost/statechart/detail/rtti_policy.hpp>
13#include <boost/statechart/detail/memory.hpp>
14
15#include <boost/polymorphic_cast.hpp> // boost::polymorphic_downcast
16
17#include <memory> // std::allocator
18
19
20
21namespace boost
22{
23namespace statechart
24{
25
26
27
28//////////////////////////////////////////////////////////////////////////////
29template< class MostDerived, class Allocator = std::allocator< none > >
30class event : public detail::rtti_policy::rtti_derived_type<
31 MostDerived, event_base >
32{
33 public:
34 //////////////////////////////////////////////////////////////////////////
35 // Compiler-generated copy constructor and copy assignment operator are
36 // fine
37
38 void * operator new( std::size_t size )
39 {
40 return detail::allocate< MostDerived, Allocator >( size );
41 }
42
43 void * operator new( std::size_t, void * p )
44 {
45 return p;
46 }
47
48 void operator delete( void * pEvent )
49 {
50 detail::deallocate< MostDerived, Allocator >( pEvent );
51 }
52
53 void operator delete( void * pEvent, void * p )
54 {
55 }
56
57 protected:
58 //////////////////////////////////////////////////////////////////////////
59 event() {}
60 virtual ~event() {}
61
62 private:
63 //////////////////////////////////////////////////////////////////////////
64 virtual intrusive_ptr< const event_base > clone() const
65 {
66 return intrusive_ptr< const event_base >( new MostDerived(
67 *polymorphic_downcast< const MostDerived * >( this ) ) );
68 }
69};
70
71
72
73} // namespace statechart
74} // namespace boost
75
76
77
78#endif
79

source code of boost/libs/statechart/include/boost/statechart/event.hpp