jdialog.c

mediastreamer2是开源的网络传输媒体流的库

/*
  eXosip - This is the eXtended osip library.
  Copyright (C) 2002,2003,2004,2005,2006,2007  Aymeric MOIZARD  - [e-mail]
  
  eXosip 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.
  
  eXosip 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
*/


#ifdef ENABLE_MPATROL
#include <mpatrol.h>
#endif

#include "eXosip2.h"

extern eXosip_t eXosip;

void
eXosip_dialog_set_state (eXosip_dialog_t * jd, int state)
{
  jd->d_STATE = state;
}


int
eXosip_call_dialog_find (int jid, eXosip_call_t ** jc, eXosip_dialog_t ** jd)
{
  if (jid <= 0)
    return OSIP_BADPARAMETER;

  for (*jc = eXosip.j_calls; *jc != NULL; *jc = (*jc)->next)
    {
      for (*jd = (*jc)->c_dialogs; *jd != NULL; *jd = (*jd)->next)
        {
          if ((*jd)->d_id == jid)
            return OSIP_SUCCESS;
        }
    }
  *jd = NULL;
  *jc = NULL;
  return OSIP_NOTFOUND;
}

#ifndef MINISIZE

int
eXosip_notify_dialog_find (int nid, eXosip_notify_t ** jn, eXosip_dialog_t ** jd)
{
  if (nid <= 0)
    return OSIP_BADPARAMETER;
  for (*jn = eXosip.j_notifies; *jn != NULL; *jn = (*jn)->next)
    {
      for (*jd = (*jn)->n_dialogs; *jd != NULL; *jd = (*jd)->next)
        {
          if ((*jd)->d_id == nid)
            return OSIP_SUCCESS;
        }
    }
  *jd = NULL;
  *jn = NULL;
  return OSIP_NOTFOUND;
}

int
eXosip_subscribe_dialog_find (int sid, eXosip_subscribe_t ** js,
                              eXosip_dialog_t ** jd)
{
  if (sid <= 0)
    return OSIP_BADPARAMETER;
  for (*js = eXosip.j_subscribes; *js != NULL; *js = (*js)->next)
    {
      *jd = NULL;
      if ((*js)->s_id == sid)
        return OSIP_SUCCESS;
      for (*jd = (*js)->s_dialogs; *jd != NULL; *jd = (*jd)->next)
        {
          if ((*jd)->d_id == sid)
            return OSIP_SUCCESS;
        }
    }
  *jd = NULL;
  *js = NULL;
  return OSIP_NOTFOUND;
}

#endif

int
eXosip_dialog_set_200ok (eXosip_dialog_t * jd, osip_message_t * _200Ok)
{
  int i;

  if (jd == NULL)
    return OSIP_BADPARAMETER;
  if (jd->d_200Ok != NULL)
    osip_message_free (jd->d_200Ok);
  jd->d_timer = time (NULL) + 1;
  jd->d_count = 0;
  i = osip_message_clone (_200Ok, &(jd->d_200Ok));
  if (i != 0)
    return i;
  return OSIP_SUCCESS;
}

int
eXosip_dialog_init_as_uac (eXosip_dialog_t ** _jd, osip_message_t * _200Ok)
{
  int i;
  eXosip_dialog_t *jd;

  *_jd = NULL;
  jd = (eXosip_dialog_t *) osip_malloc (sizeof (eXosip_dialog_t));
  if (jd == NULL)
    return OSIP_NOMEM;
  memset (jd, 0, sizeof (eXosip_dialog_t));

  jd->d_id = -1;                /* not yet available to user */
  jd->d_STATE = JD_EMPTY;

  if (MSG_IS_REQUEST (_200Ok))
    {
      i =
        osip_dialog_init_as_uac_with_remote_request (&(jd->d_dialog), _200Ok, -1);
  } else
    {                           /* normal usage with response */
      i = osip_dialog_init_as_uac (&(jd->d_dialog), _200Ok);
    }
  if (i != 0)
    {
      osip_free (jd);
      return i;
    }

  jd->d_count = 0;
  jd->d_timer = time (NULL);
  jd->d_200Ok = NULL;
  jd->d_ack = NULL;
  jd->next = NULL;
  jd->parent = NULL;
  jd->d_out_trs = (osip_list_t *) osip_malloc (sizeof (osip_list_t));
  if (jd->d_out_trs == NULL)
    {
      osip_dialog_free (jd->d_dialog);
      osip_free (jd);
      return OSIP_NOMEM;
    }
  osip_list_init (jd->d_out_trs);
  jd->d_inc_trs = (osip_list_t *) osip_malloc (sizeof (osip_list_t));
  if (jd->d_inc_trs == NULL)
    {
      osip_dialog_free (jd->d_dialog);
      osip_free (jd->d_out_trs);
      osip_free (jd);
      return OSIP_NOMEM;
    }
  osip_list_init (jd->d_inc_trs);

  *_jd = jd;
  return OSIP_SUCCESS;
}

int
eXosip_dialog_init_as_uas (eXosip_dialog_t ** _jd, osip_message_t * _invite,
                           osip_message_t * _200Ok)
{
  int i;
  eXosip_dialog_t *jd;

  *_jd = NULL;
  jd = (eXosip_dialog_t *) osip_malloc (sizeof (eXosip_dialog_t));
  if (jd == NULL)
    return OSIP_NOMEM;
  memset (jd, 0, sizeof (eXosip_dialog_t));
  jd->d_id = -1;                /* not yet available to user */
  jd->d_STATE = JD_EMPTY;
  i = osip_dialog_init_as_uas (&(jd->d_dialog), _invite, _200Ok);
  if (i != 0)
    {
      osip_free (jd);
      return i;
    }

  jd->d_count = 0;
  jd->d_timer = time (NULL);
  jd->d_200Ok = NULL;
  jd->d_ack = NULL;
  jd->next = NULL;
  jd->parent = NULL;
  jd->d_out_trs = (osip_list_t *) osip_malloc (sizeof (osip_list_t));
  if (jd->d_out_trs == NULL)
    {
      osip_dialog_free (jd->d_dialog);
      osip_free (jd);
      return OSIP_NOMEM;
    }
  osip_list_init (jd->d_out_trs);
  jd->d_inc_trs = (osip_list_t *) osip_malloc (sizeof (osip_list_t));
  if (jd->d_inc_trs == NULL)
    {
      osip_dialog_free (jd->d_dialog);
      osip_free (jd->d_out_trs);
      osip_free (jd);
      return OSIP_NOMEM;
    }
  osip_list_init (jd->d_inc_trs);

  jd->d_dialog->local_cseq = 1;

  *_jd = jd;
  return OSIP_SUCCESS;
}

void
eXosip_dialog_free (eXosip_dialog_t * jd)
{
  while (!osip_list_eol (jd->d_inc_trs, 0))
    {
      osip_transaction_t *tr;

      tr = (osip_transaction_t *) osip_list_get (jd->d_inc_trs, 0);
      osip_list_remove (jd->d_inc_trs, 0);
      __eXosip_delete_jinfo (tr);
      osip_list_add (&eXosip.j_transactions, tr, 0);
    }

  while (!osip_list_eol (jd->d_out_trs, 0))
    {
      osip_transaction_t *tr;

      tr = (osip_transaction_t *) osip_list_get (jd->d_out_trs, 0);
      osip_list_remove (jd->d_out_trs, 0);
      __eXosip_delete_jinfo (tr);
      osip_list_add (&eXosip.j_transactions, tr, 0);
    }

  osip_message_free (jd->d_200Ok);
  osip_message_free (jd->d_ack);

  osip_dialog_free (jd->d_dialog);

  osip_free (jd->d_out_trs);
  osip_free (jd->d_inc_trs);
  osip_free (jd);

  eXosip_update ();
}