56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
// Copyright 2008 Christophe Henry
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// henry UNDERSCORE christophe AT hotmail DOT com
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// This is an extended version of the state machine available in the boost::mpl library
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// Distributed under the same license as the original.
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// Copyright for the original version:
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// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
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// under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
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#define BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
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namespace boost { namespace msm
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{
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// policy classes
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// Default: new active state set after the transition (after entry)
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struct active_state_switch_after_entry
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{
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static int after_guard(int current_state,int){return current_state;}
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static int after_exit(int current_state,int){return current_state;}
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static int after_action(int current_state,int){return current_state;}
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static int after_entry(int,int next_state){return next_state;}
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};
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// new state set before the transition starts
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struct active_state_switch_before_transition
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{
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static int after_guard(int,int next_state){return next_state;}
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static int after_exit(int,int next_state){return next_state;}
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static int after_action(int,int next_state){return next_state;}
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static int after_entry(int,int next_state){return next_state;}
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};
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// new state set after exit action completed
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struct active_state_switch_after_exit
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{
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static int after_guard(int current_state,int){return current_state;}
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static int after_exit(int,int next_state){return next_state;}
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static int after_action(int,int next_state){return next_state;}
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static int after_entry(int,int next_state){return next_state;}
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};
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// new state set after transition action completed
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struct active_state_switch_after_transition_action
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{
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static int after_guard(int current_state,int){return current_state;}
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static int after_exit(int current_state,int){return current_state;}
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static int after_action(int,int next_state){return next_state;}
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static int after_entry(int,int next_state){return next_state;}
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};
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} }//boost::msm
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#endif //BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
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