[ceph.git] / ceph / src / boost / libs / msm / include / boost / msm / active_state_switching_policies.hpp

// Copyright 2008 Christophe Henry
// henry UNDERSCORE christophe AT hotmail DOT com
// This is an extended version of the state machine available in the boost::mpl library
// Distributed under the same license as the original.
// Copyright for the original version:
// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
// under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
#define BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H

namespace boost { namespace msm
{
// policy classes

// Default: new active state set after the transition (after entry)
struct active_state_switch_after_entry 
{
    static int after_guard(int current_state,int){return current_state;}
    static int after_exit(int current_state,int){return current_state;}
    static int after_action(int current_state,int){return current_state;}
    static int after_entry(int,int next_state){return next_state;}
};

// new state set before the transition starts
struct active_state_switch_before_transition 
{
    static int after_guard(int,int next_state){return next_state;}
    static int after_exit(int,int next_state){return next_state;}
    static int after_action(int,int next_state){return next_state;}
    static int after_entry(int,int next_state){return next_state;}
};

// new state set after exit action completed
struct active_state_switch_after_exit 
{
    static int after_guard(int current_state,int){return current_state;}
    static int after_exit(int,int next_state){return next_state;}
    static int after_action(int,int next_state){return next_state;}
    static int after_entry(int,int next_state){return next_state;}
};

// new state set after transition action completed
struct active_state_switch_after_transition_action 
{
    static int after_guard(int current_state,int){return current_state;}
    static int after_exit(int current_state,int){return current_state;}
    static int after_action(int,int next_state){return next_state;}
    static int after_entry(int,int next_state){return next_state;}
};

} }//boost::msm
#endif //BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
Commit	Line	Data
7c673cae FG	1	// Copyright 2008 Christophe Henry
	2	// henry UNDERSCORE christophe AT hotmail DOT com
	3	// This is an extended version of the state machine available in the boost::mpl library
	4	// Distributed under the same license as the original.
	5	// Copyright for the original version:
	6	// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
	7	// under the Boost Software License, Version 1.0. (See accompanying
	8	// file LICENSE_1_0.txt or copy at
	9	// http://www.boost.org/LICENSE_1_0.txt)
	10
	11	#ifndef BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
	12	#define BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H
	13
	14	namespace boost { namespace msm
	15	{
	16	// policy classes
	17
	18	// Default: new active state set after the transition (after entry)
	19	struct active_state_switch_after_entry
	20	{
	21	static int after_guard(int current_state,int){return current_state;}
	22	static int after_exit(int current_state,int){return current_state;}
	23	static int after_action(int current_state,int){return current_state;}
	24	static int after_entry(int,int next_state){return next_state;}
	25	};
	26
	27	// new state set before the transition starts
	28	struct active_state_switch_before_transition
	29	{
	30	static int after_guard(int,int next_state){return next_state;}
	31	static int after_exit(int,int next_state){return next_state;}
	32	static int after_action(int,int next_state){return next_state;}
	33	static int after_entry(int,int next_state){return next_state;}
	34	};
	35
	36	// new state set after exit action completed
	37	struct active_state_switch_after_exit
	38	{
	39	static int after_guard(int current_state,int){return current_state;}
	40	static int after_exit(int,int next_state){return next_state;}
	41	static int after_action(int,int next_state){return next_state;}
	42	static int after_entry(int,int next_state){return next_state;}
	43	};
	44
	45	// new state set after transition action completed
	46	struct active_state_switch_after_transition_action
	47	{
	48	static int after_guard(int current_state,int){return current_state;}
	49	static int after_exit(int current_state,int){return current_state;}
	50	static int after_action(int,int next_state){return next_state;}
	51	static int after_entry(int,int next_state){return next_state;}
	52	};
	53
	54	} }//boost::msm
	55	#endif //BOOST_MSM_ACTIVE_STATE_SWITCHING_POLICIES_H