/*
 * $Id$
 *
 * Copyright (C) 2012 Andrew Mortensen
 *
 * This file is part of the sca module for sip-router, a free SIP server.
 *
 * The sca module 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
 *
 * The sca module 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *
 */
#ifndef SCA_DIALOG_H
#define SCA_DIALOG_H

struct _sca_dialog {
    str		id;	/* call-id + from-tag + to-tag */
    str		call_id;
    str		from_tag;
    str		to_tag;

    int		notify_cseq;
    int		subscribe_cseq;
};
typedef struct _sca_dialog		sca_dialog;

#define SCA_DIALOG_EMPTY(d) \
	((d) == NULL || (SCA_STR_EMPTY( &(d)->call_id ) && \
			    SCA_STR_EMPTY( &(d)->from_tag ) && \
			    SCA_STR_EMPTY( &(d)->to_tag )))

int	sca_dialog_build_from_tags( sca_dialog *, int, str *, str *, str * );
int	sca_dialog_create_replaces_header( sca_dialog *, str * );

#endif /* SCA_DIALOG_H */