fsm.h

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/* HERMES Modem
 *
 * Copyright (C) 2025 Rhizomatica
 * Author: Rafael Diniz <rafael@riseup.net>
 *
 * This 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 3, or (at your option)
 * any later version.
 *
 * This software 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, see <https://www.gnu.org/licenses/>.
 *
 */
 
#ifndef FSM_H
#define FSM_H
 
#include <pthread.h>
 
/* ---- FSM Definitions ---- */
 
/* FSM Events */
// TNC TCP client event
#define EV_CLIENT_CONNECT 0
#define EV_CLIENT_DISCONNECT 1
 
#define EV_START_LISTEN 2
#define EV_STOP_LISTEN 3
 
#define EV_LINK_CALL_REMOTE 4
#define EV_LINK_INCOMING_CALL 5
#define EV_LINK_DISCONNECT 6
 
#define EV_LINK_ESTABLISHMENT_TIMEOUT 7
 
#define EV_LINK_ESTABLISHED 8
 
 
#ifdef __cplusplus
extern "C" {
#endif
    
extern const char* fsm_event_names[];
 
#ifdef __cplusplus
}
#endif
 
typedef void (*fsm_state)(int event);
 
typedef struct {
    fsm_state current;
    pthread_mutex_t lock;
} fsm_handle;
 
void fsm_init(fsm_handle* fsm, fsm_state initial_state);
 
void fsm_dispatch(fsm_handle* fsm, int event);
 
void fsm_destroy(fsm_handle* fsm);
 
#endif // FSM_H