IRefCounted.h

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/* ========================================================================
 * Copyright (c) 2006,
 * Institute for Computer Graphics and Vision
 * Graz University of Technology
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 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.
 *
 * Neither the name of the Graz University of Technology nor the names of
 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 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
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ========================================================================
 * PROJECT: OpenTracker
 * ======================================================================== */
/* ======================================================================= */

#ifndef OT_CORE_IREFCOUNT_H_INCLUDED
#define OT_CORE_IREFCOUNT_H_INCLUDED

//#include <ace/Atomic_Op.h>


namespace ot {


  /*

class OPENTRACKER_API IRefCounted{
 public:
  //  typedef ACE_Atomic_Op<ACE_Thread_Mutex, unsigned long> COUNTING_TYPE;
  typedef unsigned long COUNTING_TYPE;
  virtual int _ref();

  virtual int _deref();
  
  virtual int getRefCount();
 protected:
  COUNTING_TYPE _rcount;
};
  */

#define OT_DECLARE_IREFCOUNTED protected:\
     int _rcount;\
  public:\
  virtual int _ref();\
  virtual int _deref();\
  virtual int getRefCount()


#define IMPLEMENT_IREFCOUNTED(CLASS) int CLASS ::_ref(){\
  return ++ _rcount;\
  };\
  \
  int CLASS ::_deref(){\
     if (--_rcount == 0){\
        delete this;\
     } \
     return _rcount;\
   };\
  \
  int CLASS ::getRefCount(){\
     return _rcount;\
  }

}; //NAMESPACE_OT
#endif // OT_CORE_IREFCOUNT_H_INCLUDED


/* 
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 *   End of IRefCounted.h
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