AmSessionContainer.h

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/*
 * Copyright (C) 2002-2003 Fhg Fokus
 *
 * This file is part of SEMS, a free SIP media server.
 *
 * SEMS 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. This program is released under
 * the GPL with the additional exemption that compiling, linking,
 * and/or using OpenSSL is allowed.
 *
 * For a license to use the SEMS software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    info@iptel.org
 *
 * SEMS 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
 */
#ifndef AmSessionContainer_h
#define AmSessionContainer_h

#include "AmThread.h"
#include "AmSession.h"

#include "ampi/MonitoringAPI.h"

#include <string>
#include <queue>
#include <map>

using std::string;

class AmSessionContainer : public AmThread
{
  static AmSessionContainer* _instance;

  typedef std::queue<AmSession*>      SessionQueue;

  SessionQueue d_sessions;
  AmMutex      ds_mut;

  AmCondition<bool> _container_closed;

  AmCondition<bool> _run_cond;

  AmSessionContainer();


  bool enable_unclean_shutdown;

  void stopAndQueue(AmSession* s);

  void run();
  void on_stop();

  bool clean_sessions();

 public:
  static AmSessionContainer* instance();

  static void dispose();

  enum AddSessionStatus {
    ShutDown,
    Inserted,
    AlreadyExist
  };

  AmSession* createSession(const AmSipRequest& req, 
                           string& app_name,
                           AmArg* session_params = NULL);

  AddSessionStatus addSession(const string& callid,
                              const string& remote_tag,
                              const string& local_tag,
                              const string& via_branch,
                              AmSession* session);

  AddSessionStatus addSession(const string& local_tag,
                              AmSession* session);

  void startSessionUAS(AmSipRequest& req);

  string startSessionUAC(const AmSipRequest& req, 
                         string& app_name,
                         AmArg* session_params = NULL);

  void destroySession(AmSession* s);

  bool postEvent(const string& callid, 
                 const string& remote_tag,
                 const string& via_branch,
                 AmEvent* event);

  bool postEvent(const string& local_tag, AmEvent* event);

  void  broadcastShutdown();

  void enableUncleanShutdown();

  _MONITORING_DEFINE_INTERFACE;

};

#endif