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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _NULLCANVAS_USAGECOUNTER_HXX
#define _NULLCANVAS_USAGECOUNTER_HXX
#include <osl/interlck.h>
#include <boost/current_function.hpp>
namespace nullcanvas
{
/** Little resource tracking counter.
When using this object, a global use counter, specific to the
given type is incremented on object construction, and
decremented on object destruction.
*/
template< class Type > class UsageCounter
{
public:
UsageCounter()
{
OSL_TRACE( "%s, %d objects currently in use.\n",
BOOST_CURRENT_FUNCTION,
osl_incrementInterlockedCount( &s_nCount ) );
}
~UsageCounter()
{
const sal_Int32 nCount( osl_decrementInterlockedCount( &s_nCount ) );
if( !nCount )
{
OSL_TRACE( "%s, last instance deleted.\n",
BOOST_CURRENT_FUNCTION );
}
else
{
OSL_TRACE( "%s, %d instances left.\n",
BOOST_CURRENT_FUNCTION,
nCount );
}
}
private:
static oslInterlockedCount s_nCount;
};
template< class Type > oslInterlockedCount UsageCounter<Type>::s_nCount = 0;
}
#endif /* _NULLCANVAS_USAGECOUNTER_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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