/* $Id: mcl_fsm.h,v 1.1.1.1 2003/09/03 12:45:43 chneuman Exp $ */
/*
 *  Copyright (c) 1999-2003 INRIA - Universite Paris 6 - All rights reserved
 *  (main author: Vincent Roca - vincent.roca@inrialpes.fr)
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 *  USA.
 */

#ifndef MCL_FSM_H  /* { */
#define MCL_FSM_H

/*
 * SENDER's FSM (Finite State Machine)
 */

typedef enum {
	TSTATE_NIL = 0,
	TSTATE_READY,
	TSTATE_IN_TX,
	TSTATE_FINISH_TX,
	TSTATE_END,
	TSTATE_CLOSED,
	TSTATE_INVALID
} tx_states_t;

typedef enum {
	TEVENT_NIL = 0,
	TEVENT_OPEN_CALLED,	/* application has called mcl_open */
	TEVENT_NEW_ADU,		/* tx: mcl_send called, rx: NEW ADU received */
	TEVENT_ALL_DU_SENT,	/* all the DUs have been sent */
	TEVENT_CLOSE_CALLED,	/* application has called mcl_close */
	TEVENT_CLOSE_SENT,	/* CLOSE sent to peer */
	TEVENT_CLOSE_RETURN,	/* mcl_close just returned */
	TEVENT_ABORT,		/* mcl_abort called */
	TEVENT_RESET		/* mcl_abort called */	
} tx_events_t;


/*
 * RECEIVER's FSM (Finite State Machine)
 */

typedef enum {
	RSTATE_NIL = 0,
	RSTATE_READY,
	RSTATE_IN_RX,
	RSTATE_FINISH_RX,
	RSTATE_END,
	RSTATE_CLOSE_RX,	/* CLOSE has been received */
	RSTATE_CLOSED,
	RSTATE_INVALID
} rx_states_t;

typedef enum {
	REVENT_NIL = 0,
	REVENT_OPEN_CALLED,	/* application has called mcl_open */
	REVENT_NEW_ADU,		/* NEW_ADU received */
	REVENT_NO_NEW_ADU,	/* NO_NEW_ADU received */
	REVENT_DU_RECV,		/* DU received */
	REVENT_ALL_DU_RECV,	/* all the DUs have been received */
	REVENT_CLOSE_CALLED,	/* application has called mcl_close */
	REVENT_CLOSE_RECV,	/* CLOSE sent to peer */
	REVENT_CLOSE_RETURN	/* mcl_close just returned */
} rx_events_t;

#endif /* }  MCL_FSM_H */