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1 | #ifndef BOOST_STATECHART_EVENT_PROCESSOR_INCLUDED |
2 | #define BOOST_STATECHART_EVENT_PROCESSOR_INCLUDED | |
3 | ////////////////////////////////////////////////////////////////////////////// | |
4 | // Copyright 2002-2008 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 | namespace boost | |
12 | { | |
13 | namespace statechart | |
14 | { | |
15 | ||
16 | ||
17 | ||
18 | class event_base; | |
19 | ||
20 | ||
21 | ||
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | template< class Scheduler > | |
24 | class event_processor | |
25 | { | |
26 | public: | |
27 | ////////////////////////////////////////////////////////////////////////// | |
28 | virtual ~event_processor() {} | |
29 | ||
30 | Scheduler & my_scheduler() const | |
31 | { | |
32 | return myScheduler_; | |
33 | } | |
34 | ||
35 | typedef typename Scheduler::processor_handle processor_handle; | |
36 | ||
37 | processor_handle my_handle() const | |
38 | { | |
39 | return myHandle_; | |
40 | } | |
41 | ||
42 | void initiate() | |
43 | { | |
44 | initiate_impl(); | |
45 | } | |
46 | ||
47 | void process_event( const event_base & evt ) | |
48 | { | |
49 | process_event_impl( evt ); | |
50 | } | |
51 | ||
52 | void terminate() | |
53 | { | |
54 | terminate_impl(); | |
55 | } | |
56 | ||
57 | protected: | |
58 | ////////////////////////////////////////////////////////////////////////// | |
59 | typedef const typename Scheduler::processor_context & my_context; | |
60 | ||
61 | event_processor( my_context ctx ) : | |
62 | myScheduler_( ctx.my_scheduler() ), | |
63 | myHandle_( ctx.my_handle() ) | |
64 | { | |
65 | } | |
66 | ||
67 | private: | |
68 | ////////////////////////////////////////////////////////////////////////// | |
69 | virtual void initiate_impl() = 0; | |
70 | virtual void process_event_impl( const event_base & evt ) = 0; | |
71 | virtual void terminate_impl() = 0; | |
72 | ||
73 | // avoids C4512 (assignment operator could not be generated) | |
74 | event_processor & operator=( const event_processor & ); | |
75 | ||
76 | Scheduler & myScheduler_; | |
77 | const processor_handle myHandle_; | |
78 | }; | |
79 | ||
80 | ||
81 | ||
82 | } // namespace statechart | |
83 | } // namespace boost | |
84 | ||
85 | ||
86 | ||
87 | #endif |