contact.hxx

SIP（Session Initiation Protocol）是由IETF定义

#ifndef Contact_HXX
#define Contact_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
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 * 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 ContactVersion =
    "$Id: Contact.hxx,v 1.14 2002/03/19 21:40:15 jason Exp $";



#include <InviteMsg.hxx>
#include <StatusMsg.hxx>

namespace Vocal
{

class BaseUrl;
class InviteMsg;
class SipCallLeg;
class SipContact;
class SipMsg;
class SipStatusLine;
class SipUrl;
class StatusMsg;

/// Keeps track of the one destination that we are trying
class Contact
{
    public:
        ///
        Contact( const Contact& c );

        ///
        Contact( const InviteMsg& msg );

        /// A update msg has arrived from this contact, may want to save some stuff
        void update( const StatusMsg& msg );

        /// the location being tried - is just the Request-URI part
        Sptr< BaseUrl > getLocation();

        ///get the call sequence number
        unsigned int getCSeqNum()
        {
            return cSeqNum;
        };

        ///
        void setCSeqNum(unsigned int cseq);

        ///
        InviteMsg getInviteMsg();

        ///
        StatusMsg getStatusMsg();

        /// The branch number of this attempt
        int getBranch();

        /// the best 3 digit SIP status code returned - initally 0
        int getStatus();

        /// Call leg for this attempt
        SipCallLeg computeCallLeg() const;

        ///
        void setLastInfoCSeq(unsigned int cseq);
        unsigned int getLastInfoCSeq();

        ///
        void setRemoteRingback( bool flag );
        bool getRemoteRingback() const;

        /// Check if the CallLeg, Location, and Branch match
        bool operator==( const SipMsg& msg );
        bool operator==( const Contact& other ) const;

        /// oposite of == operator
        bool operator!=( const Contact& other );

        ///
        void operator=(const Contact& src );


    private:
        unsigned int lastInfoCSeq;
        int status;
        unsigned int cSeqNum;

        InviteMsg inviteMsg;
        StatusMsg statusMsg;

        bool remoteRingback;
};
 
}

#endif