sipsessionexpires.hxx

SIP（Session Initiation Protocol）是由IETF定义

#ifndef SipSessionExpires_HXX
#define SipSessionExpires_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
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 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
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 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
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 * ====================================================================
 * 
 * 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 SipSessionExpiresVersion =
    "$Id: SipSessionExpires.hxx,v 1.3.2.1 2003/02/20 00:52:53 bko Exp $";

#include "global.h"
#include "Data.hxx"
#include "SipHeader.hxx"
#include "VException.hxx"

namespace Vocal
{
    
enum SipSessionExpiresErrorType
{
    DECODE_SESSION_EXPIRE_FAILED

    //may need to change this to be more specific
};


/// Exception handling class
class SipSessionExpiresParserException : public VException
{
    public:
        SipSessionExpiresParserException( const string& msg,
                                   const string& file,
                                   const int line,
                                   const int error = 0 );
        SipSessionExpiresParserException( const string& msg,
                                   const string& file,
                                   const int line,
                                   SipSessionExpiresErrorType i)
        : VException( msg, file, line, static_cast < int > (i))
        {
            value = i;
        }
        SipSessionExpiresErrorType getError() const
        {
            return value;
        }
        string getName() const ;
    private:
        SipSessionExpiresErrorType value;
};


/// data container for SessionExpires header
class SipSessionExpires : public SipHeader
{
    public:
        /// Create one with default values
        SipSessionExpires();

        /*** Create by decoding the data string passed in. This is the decode
             or parse. This call should only be used inside the stack and is
             not part of the API */
        SipSessionExpires( const Data& srcData );
        SipSessionExpires( const SipSessionExpires& src );

        ///
        bool operator ==( const SipSessionExpires& src ) const;
        ///
        const SipSessionExpires& operator =(const SipSessionExpires& src);
        ///
        void scanSipSessionExpires(const Data& data);

        ///
        void setDelta( const Data& data);
        ///
        const Data& getDelta() const;
        ///
        void setRefreshParam ( const Data& data);
        ///
        const Data& getRefreshParam() const;

        /*** return the encoded string version of this. This call
             should only be used inside the stack and is not part of
             the API */
        Data encode() const;
        ///
        void decode(const Data& data);

        ///
        Data getData() const;


	/** method for copying sip headers of any type without knowing
            which type */
	SipHeader* duplicate() const;
	/// compare two headers of (possibly) the same class
	virtual bool compareSipHeader(SipHeader* msg) const;

        ///
        void parseError(const string& context);

    private:
        Data delta;
        bool bDelta;
        Data refresher;
        bool bRefresher;

        friend class SipMsg;
};
 
} // namespace Vocal

/* Local Variables: */
/* c-file-style: "stroustrup" */
/* indent-tabs-mode: nil */
/* c-file-offsets: ((access-label . -) (inclass . ++)) */
/* c-basic-offset: 4 */
/* End: */

#endif