OMKFlowable.h

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/*
 * This file is part of openMask © INRIA, CNRS, Universite de Rennes 1 1993-2002, thereinafter the Software
 * 
 * The Software has been developped within the Siames Project. 
 * INRIA, the University of Rennes 1 and CNRS jointly hold intellectual property rights
 * 
 * The Software has been registered with the Agence pour la Protection des
 * Programmes (APP) under registration number IDDN.FR.001.510008.00.S.P.2001.000.41200
 *
 * This file may be distributed under the terms of the Q Public License
 * version 1.0 as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * Licensees holding valid specific licenses issued by INRIA, CNRS or Université de Rennes 1 
 * for the software may use this file in accordance with that specific license 
 *
 */
#ifndef OMKFlowableHEADER
#define OMKFlowableHEADER

#include <iostream>
#include "OMKPackable.h"

namespace OMK 
{

class OMK_API Flowable : public Packable
{
public:
   virtual void extract (std::istream & = std::cin) = 0 ;

   virtual void insertInStream (std::ostream & = std::cout) const = 0 ;

   virtual void unpack (IncomingSynchronisationMessage &) ;
   
   virtual void pack (OutgoingSynchronisationMessage &) const ;

} ; // Flowable
} // namespace OMK

inline std::istream & operator >> (std::istream & in , OMK::Flowable & c) 
{
  c.extract (in) ;
  return in ;
} 

inline std::ostream & operator << (std::ostream & out, const OMK::Flowable & c)  
{
  c.insertInStream (out) ;
  return out;
}

//------------------------------------------------------------------------

#endif

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