#if !defined(RESIP_COMPRESSION_HXX)#define RESIP_COMPRESSION_HXXnamespace osc{    class StateHandler;    class Stack;}namespace resip{class Compression{   public:     typedef enum     {       NONE,       DEFLATE     } Algorithm;     Compression(Algorithm algorithm         = DEFLATE,                 int stateMemorySize         = 8192,                 int cyclesPerBit            = 64,                 int decompressionMemorySize = 8192,                 Data sigcompId              = Data::Empty);     ~Compression();     bool isEnabled() { return (mAlgorithm != NONE); }     Algorithm getAlgorithm() const { return mAlgorithm; }     osc::StateHandler &getStateHandler(){ return *mStateHandler; }     void addCompressorsToStack(osc::Stack *);     const Data &getSigcompId() {return mSigcompId;}     /// Represents a compression configuration object with     /// compression disabled     static Compression Disabled;   private:     Algorithm          mAlgorithm;     osc::StateHandler *mStateHandler;     // This is the unique compartment identifier for this     // client or server (or cluster of servers with shared state).     // See draft-ietf-rohc-sigcomp-sip     Data mSigcompId;};}#endif/* ==================================================================== * 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 vocal@vovida.org. * * 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/>. * */