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#ifndef _H_STATEMAP
#define _H_STATEMAP
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is State Machine Compiler (SMC).
*
* The Initial Developer of the Original Code is Charles W. Rapp.
*
* Port to C by Francois Perrad, francois.perrad@gadz.org
* Copyright 2004, Francois Perrad.
* All Rights Reserved.
*
* Contributor(s):
*
* Description
*
* RCS ID
* $Id: statemap.h,v 1.4 2009/03/01 18:20:40 cwrapp Exp $
*
* Change Log
* $Log: statemap.h,v $
* Revision 1.4 2009/03/01 18:20:40 cwrapp
* Preliminary v. 6.0.0 commit.
*
* Revision 1.3 2008/05/30 21:14:48 fperrad
* - define TRACE only when undefined
*
* Revision 1.2 2007/08/05 12:58:11 cwrapp
* Version 5.0.1 check-in. See net/sf/smc/CODE_README.txt for more information.
*
* Revision 1.1 2005/06/16 18:08:17 fperrad
* Added C, Perl & Ruby.
*
*/
#include <stdio.h>
#include <string.h>
#ifndef TRACE
#define TRACE printf
#endif
#define STATE_MEMBERS \
const char *_name; \
int _id;
struct State
{
STATE_MEMBERS
};
#define getName(state) \
(state)->_name
#define getId(state) \
(state)->_id
#define State_Default(fsm) \
assert(0)
#define FSM_MEMBERS(app) \
const struct app##State * _state; \
const struct app##State * _previous_state; \
const struct app##State ** _stack_start; \
const struct app##State ** _stack_curr; \
const struct app##State ** _stack_max; \
const char * _transition; \
int _debug_flag;
struct FSMContext
{
FSM_MEMBERS(_)
};
#define FSM_INIT(fsm, state) \
(fsm)->_state = (state); \
(fsm)->_previous_state = NULL; \
(fsm)->_stack_start = NULL; \
(fsm)->_stack_curr = NULL; \
(fsm)->_stack_max = NULL; \
(fsm)->_transition = NULL; \
(fsm)->_debug_flag = 0
#define FSM_STACK(fsm, stack) \
(fsm)->_stack_start = &(stack)[0]; \
(fsm)->_stack_curr = &(stack)[0]; \
(fsm)->_stack_max = &(stack)[0] + (sizeof(stack) / sizeof(void*))
#define getState(fsm) \
(fsm)->_state
#define clearState(fsm) \
(fsm)->_previous_state = (fsm)->_state; \
(fsm)->_state = NULL
#define setState(fsm, state) \
(fsm)->_state = (state); \
if ((fsm)->_debug_flag != 0) { \
TRACE("NEW STATE : %s\n", getName(state)); \
}
#define pushState(fsm, state) \
if ((fsm)->_stack_curr >= (fsm)->_stack_max) { \
assert(0 == "STACK OVERFLOW"); \
} \
*((fsm)->_stack_curr) = (fsm)->_state; \
(fsm)->_stack_curr ++; \
(fsm)->_state = state; \
if ((fsm)->_debug_flag != 0) { \
TRACE("PUSH TO STATE: %s\n", getName(state)); \
}
#define popState(fsm) \
(fsm)->_stack_curr --; \
(fsm)->_state = *((fsm)->_stack_curr); \
if ((fsm)->_debug_flag != 0) { \
TRACE("POP TO STATE : %s\n", getName((fsm)->_state)); \
}
#define emptyStateStack(fsm) \
(fsm)->_stack_curr = (fsm)->_stack_start
#define setTransition(fsm, transition) \
(fsm)->_transition = (transition)
#define getTransition(fsm) \
(fsm)->_transition
#define getDebugFlag(fsm) \
(fsm)->_debug_flag
#define setDebugFlag(fsm, flag) \
(fsm)->_debug_flag = (flag)
#endif
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