callagent.hxx

SIP（Session Initiation Protocol）是由IETF定义

#ifndef CallAgent_hxx
#define CallAgent_hxx

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */


static const char* const CallAgent_hxx_Version =
    "$Id: CallAgent.hxx,v 1.10.2.1 2003/02/15 02:02:06 veer Exp $";

#include "global.h"
#include <map>
#include "Sptr.hxx"
#include "BasicAgent.hxx"
#include "ControlState.hxx"
#include "UaDef.hxx"

namespace Vocal
{

namespace UA
{



/// Object to hold a thread for call-setup/teardown 
class CallAgent : public BasicAgent
{
   public:
      /// Create one with default values
      CallAgent(Sptr<SipMsg> sMsg, AgentRole aRole);

      ///
      CallAgent( const CallAgent& src ): BasicAgent(src)
      {
          copyObj(src);
      }

      /// 
      const CallAgent& operator =( const CallAgent& src )
      {
          if(this != &src)
          {
              BasicAgent::operator=(src);
              copyObj(src);
          }
          return *this;
      }

      void copyObj(const CallAgent& src)
      {
          myState = src.myState;
          myRole = src.myRole;
          myActiveFlg = src.myActiveFlg;
      }

      ///
      string className() { return "CallAgent"; };
      ///
      void setState(ControlState* state) { myState = state; };


      /** @name - Server side hooks */
      //{@
      ///
      void inCall();

      ///
      void callFailed();

      ///
     void endCall();

      ///
      void doCancel();

      ///
      void sendBusy();
      ///
      void receivedRequest(UaBase& agent, const Sptr<SipMsg>& msg);
      ///
      void hold(UaBase& agent, const Sptr<SipMsg>& msg);
      //@}
	void reqResume( Sptr<SipMsg>& msg);


      /** @name - Client side actions */
      //{@

      ///
      void placeCall();
      ///
      void acceptCall();
      /// 
      void stopCall();
      ///
      void sendCancel();
      ///
      void doBye();
      ///
      void receivedStatus(UaBase& agent, const Sptr<SipMsg>& msg);
       ///
       void doResume(Sptr<SipMsg>& msg);

      //@}

      ///
      void setDeleted();
      ///
      void dohold();
      ///
      void resume();    
      ///
      //void hold() { myActiveFlg = false; };
      ///
      // void release() { myActiveFlg = true; };

      ///
      void processHold();
      ///
      void processResume();
      ///
      bool isActive() const { return myActiveFlg; };

      ///Handle 401/407 challenges
      void doAuthentication(Sptr<StatusMsg> sMsg);
      ///
      void requestResume( Sptr<SipMsg>& msg);

   private:
      ///
      Sptr<StatusMsg> doholdresume200OKstuff(const Sptr<SipMsg>& msg, SdpSession& remoteSdp );
      ///
      void startSession(SdpSession& localSdp, SdpSession& remoteSdp);
      ///
      static long myRotatingId;

      ///
      ControlState* myState; 

      ///
      AgentRole myRole;

      ///
      bool      myActiveFlg;
      ///
      typedef map<SipCallLeg, int> MediaDataMap;
      ///
      MediaDataMap myMediaDataMap; 

};

}

}


#endif