1 #ifndef BOOST_STATECHART_DETAIL_LEAF_STATE_HPP_INCLUDED 2 #define BOOST_STATECHART_DETAIL_LEAF_STATE_HPP_INCLUDED 3 ////////////////////////////////////////////////////////////////////////////// 4 // Copyright 2002-2006 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/detail/state_base.hpp> 12 13 14 15 namespace boost 16 { 17 namespace statechart 18 { 19 namespace detail 20 { 21 22 23 24 ////////////////////////////////////////////////////////////////////////////// 25 template< class Allocator, class RttiPolicy > 26 class leaf_state : public state_base< Allocator, RttiPolicy > 27 { 28 typedef state_base< Allocator, RttiPolicy > base_type; 29 protected: 30 ////////////////////////////////////////////////////////////////////////// leaf_state(typename RttiPolicy::id_provider_type idProvider)31 leaf_state( typename RttiPolicy::id_provider_type idProvider ) : 32 base_type( idProvider ) 33 { 34 } 35 ~leaf_state()36 ~leaf_state() {} 37 38 public: 39 ////////////////////////////////////////////////////////////////////////// 40 // The following declarations should be private. 41 // They are only public because many compilers lack template friends. 42 ////////////////////////////////////////////////////////////////////////// set_list_position(typename base_type::state_list_type::iterator listPosition)43 void set_list_position( 44 typename base_type::state_list_type::iterator listPosition ) 45 { 46 listPosition_ = listPosition; 47 } 48 49 typedef typename base_type::leaf_state_ptr_type 50 direct_state_base_ptr_type; 51 remove_from_state_list(typename base_type::state_list_type::iterator & statesEnd,typename base_type::node_state_base_ptr_type & pOutermostUnstableState,bool performFullExit)52 virtual void remove_from_state_list( 53 typename base_type::state_list_type::iterator & statesEnd, 54 typename base_type::node_state_base_ptr_type & pOutermostUnstableState, 55 bool performFullExit ) 56 { 57 --statesEnd; 58 swap( *listPosition_, *statesEnd ); 59 ( *listPosition_ )->set_list_position( listPosition_ ); 60 direct_state_base_ptr_type & pState = *statesEnd; 61 // Because the list owns the leaf_state, this leads to the immediate 62 // termination of this state. 63 pState->exit_impl( pState, pOutermostUnstableState, performFullExit ); 64 } 65 66 virtual void exit_impl( 67 direct_state_base_ptr_type & pSelf, 68 typename base_type::node_state_base_ptr_type & pOutermostUnstableState, 69 bool performFullExit ) = 0; 70 71 private: 72 ////////////////////////////////////////////////////////////////////////// 73 typename base_type::state_list_type::iterator listPosition_; 74 }; 75 76 77 78 } // namespace detail 79 } // namespace statechart 80 } // namespace boost 81 82 83 84 #endif 85