/*
 * SpanDSP - a series of DSP components for telephony
 *
 * socket_harness.h
 *
 * Written by Steve Underwood <steveu@coppice.org>
 *
 * Copyright (C) 2012 Steve Underwood
 *
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2, as
 * published by the Free Software Foundation.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

typedef int (*termio_update_func_t)(void *user_data, struct termios *termios);

typedef int (*put_msg_free_space_func_t)(void *user_data);

typedef struct socket_harness_state_s
{
    void *user_data;

    put_msg_func_t terminal_callback;
    termio_update_func_t termios_callback;
    modem_status_func_t hangup_callback;
    put_msg_free_space_func_t terminal_free_space_callback;

    span_rx_handler_t rx_callback;
    span_rx_fillin_handler_t rx_fillin_callback;
    span_tx_handler_t tx_callback;

    int audio_fd;
    int pty_fd;
    logging_state_t logging;
    struct termios termios;

    unsigned int delay;
    unsigned int started;
    unsigned pty_closed;
    unsigned close_count;
    
    modem_t modem;
} socket_harness_state_t;

int socket_harness_run(socket_harness_state_t *s, int kick);

int terminal_write(void *user_data, const char *buf, int len);

socket_harness_state_t *socket_harness_init(socket_harness_state_t *s,
                                            const char *socket_name,
                                            const char *tag,
                                            int caller,
                                            put_msg_func_t terminal_callback,
                                            termio_update_func_t termios_callback,
                                            modem_status_func_t hangup_callback,
                                            put_msg_free_space_func_t terminal_free_space_callback,
                                            span_rx_handler_t rx_callback,
                                            span_rx_fillin_handler_t rx_fillin_callback,
                                            span_tx_handler_t tx_callback,
                                            void *user_data);

int socket_harness_release(socket_harness_state_t *s);

int socket_harness_free(socket_harness_state_t *s);