osip_dialog.h

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/*
  The oSIP library implements the Session Initiation Protocol (SIP -rfc3261-)
  Copyright (C) 2001,2002,2003,2004  Aymeric MOIZARD jack@atosc.org
  
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
  
  This library 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
  Lesser General Public License for more details.
  
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef _DIALOG_H_
#define _DIALOG_H_

#include <osip2/osip.h>

#ifdef __cplusplus
extern "C"
{
#endif


#ifndef DOXYGEN
  typedef enum _osip_dialog_type_t
  {
    CALLER,
    CALLEE
  }
  osip_dialog_type_t;
#endif


  typedef struct osip_dialog osip_dialog_t;


  struct osip_dialog
  {
    char *call_id;                       
    char *local_tag;                     
    char *remote_tag;                    
    osip_list_t *route_set;              
    int local_cseq;                      
    int remote_cseq;                     
    osip_to_t *remote_uri;               
    osip_from_t *local_uri;              
    osip_contact_t *remote_contact_uri;  
    int secure;                          
    osip_dialog_type_t type;             
    state_t state;                       
    void *your_instance;                 
  };

#define osip_dialog_set_instance(dialog,instance) (dialog)->your_instance = (void*)(instance)
  
#define osip_dialog_get_instance(dialog)          (dialog)->your_instance

  int osip_dialog_init_as_uac (osip_dialog_t ** dialog,
                               osip_message_t * response);
  int osip_dialog_init_as_uac_with_remote_request (osip_dialog_t ** dialog,
                                                   osip_message_t *next_request,
                                                   int local_cseq);

  int osip_dialog_init_as_uas (osip_dialog_t ** dialog,
                               osip_message_t * invite,
                               osip_message_t * response);
  void osip_dialog_free (osip_dialog_t * dialog);
  void osip_dialog_set_state (osip_dialog_t * dialog, state_t type);
  int osip_dialog_update_route_set_as_uas (osip_dialog_t * dialog,
                                           osip_message_t * invite);
  int osip_dialog_update_osip_cseq_as_uas (osip_dialog_t * dialog,
                                           osip_message_t * request);

  int osip_dialog_match_as_uac (osip_dialog_t * dialog,
                                osip_message_t * response);
  int osip_dialog_update_tag_as_uac (osip_dialog_t * dialog,
                                     osip_message_t * response);
  int osip_dialog_update_route_set_as_uac (osip_dialog_t * dialog,
                                           osip_message_t * response);

  int osip_dialog_match_as_uas (osip_dialog_t * dialog,
                                osip_message_t * request);

  int osip_dialog_is_originator (osip_dialog_t * dialog);
  int osip_dialog_is_callee (osip_dialog_t * dialog);


#ifdef __cplusplus
}
#endif

#endif

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