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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "H5Include.h"
#include "H5Exception.h"
#include "H5RefCounter.h"
#ifndef H5_NO_NAMESPACE
namespace H5 {
#endif
//--------------------------------------------------------------------------
// Function: RefCounter default constructor
//=\brief Default constructor: Creates a reference counter and set it
//= to 1.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
RefCounter::RefCounter() : counter(1) {}
//--------------------------------------------------------------------------
// Function: RefCounter::getCounter
//=\brief Returns the current value of the reference counter.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
int RefCounter::getCounter () const { return counter; }
//--------------------------------------------------------------------------
// Function: RefCounter::increment
//=\brief Increments the reference counter.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void RefCounter::increment() { counter++; }
//--------------------------------------------------------------------------
// Function: RefCounter::decrement
//=\brief Decrements the reference counter.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void RefCounter::decrement()
{
if (counter > 0)
counter--;
else
throw IdComponentException("RefCounter::decrement",
"reference counter of this object has non-positive value");
}
//--------------------------------------------------------------------------
// Function: RefCounter::noReference
//=\brief Returns true if there are no more reference to the object
//= that uses this counter.
//=\return true if there are no more reference to the object
//= that uses this counter, and false, otherwise.
//=\note This function will be obsolete in the next release.
// Description
// Decrements the reference counter then determines if there
// are no more reference to the object that uses this counter.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
bool RefCounter::noReference()
{
if (counter > 0)
counter--;
return(counter <= 0 ? true:false);
}
//--------------------------------------------------------------------------
// Function: RefCounter destructor
//=\brief Noop destructor.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
RefCounter::~RefCounter() {}
#ifndef H5_NO_NAMESPACE
} // end namespace
#endif
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