Chris@16: // Copyright 2008 Christophe Henry
Chris@16: // henry UNDERSCORE christophe AT hotmail DOT com
Chris@16: // This is an extended version of the state machine available in the boost::mpl library
Chris@16: // Distributed under the same license as the original.
Chris@16: // Copyright for the original version:
Chris@16: // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
Chris@16: // under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
Chris@16: #define BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
Chris@16: 
Chris@16: namespace boost { namespace msm
Chris@16: {
Chris@16: // policy classes
Chris@16: 
Chris@16: // Default: new active state set after the transition (after entry)
Chris@16: struct active_state_switch_after_entry 
Chris@16: {
Chris@16:     static int after_guard(int current_state,int){return current_state;}
Chris@16:     static int after_exit(int current_state,int){return current_state;}
Chris@16:     static int after_action(int current_state,int){return current_state;}
Chris@16:     static int after_entry(int,int next_state){return next_state;}
Chris@16: };
Chris@16: 
Chris@16: // new state set before the transition starts
Chris@16: struct active_state_switch_before_transition 
Chris@16: {
Chris@16:     static int after_guard(int,int next_state){return next_state;}
Chris@16:     static int after_exit(int,int next_state){return next_state;}
Chris@16:     static int after_action(int,int next_state){return next_state;}
Chris@16:     static int after_entry(int,int next_state){return next_state;}
Chris@16: };
Chris@16: 
Chris@16: // new state set after exit action completed
Chris@16: struct active_state_switch_after_exit 
Chris@16: {
Chris@16:     static int after_guard(int current_state,int){return current_state;}
Chris@16:     static int after_exit(int,int next_state){return next_state;}
Chris@16:     static int after_action(int,int next_state){return next_state;}
Chris@16:     static int after_entry(int,int next_state){return next_state;}
Chris@16: };
Chris@16: 
Chris@16: // new state set after transition action completed
Chris@16: struct active_state_switch_after_transition_action 
Chris@16: {
Chris@16:     static int after_guard(int current_state,int){return current_state;}
Chris@16:     static int after_exit(int current_state,int){return current_state;}
Chris@16:     static int after_action(int,int next_state){return next_state;}
Chris@16:     static int after_entry(int,int next_state){return next_state;}
Chris@16: };
Chris@16: 
Chris@16: } }//boost::msm
Chris@16: #endif //BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H