9bd69f51ba
2005/10/11 15:41:09 thb 1.1.2.2: #i54170# Corrected license headers 2005/08/19 11:03:12 thb 1.1.2.1: #i53538# Added null canvas. This canvas will do nothing, except log all operations (to stderr, currently, but planned are various targets)
85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: null_usagecounter.hxx,v $
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*
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* $Revision: 1.2 $
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*
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* last change: $Author: kz $ $Date: 2005-11-02 12:51:13 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef _NULLCANVAS_USAGECOUNTER_HXX
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#define _NULLCANVAS_USAGECOUNTER_HXX
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#include <osl/interlck.h>
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#include <boost/current_function.hpp>
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namespace nullcanvas
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{
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/** Little resource tracking counter.
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When using this object, a global use counter, specific to the
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given type is incremented on object construction, and
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decremented on object destruction.
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*/
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template< class Type > class UsageCounter
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{
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public:
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UsageCounter()
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{
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OSL_TRACE( "%s, %d objects currently in use.\n",
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BOOST_CURRENT_FUNCTION,
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osl_incrementInterlockedCount( &s_nCount ) );
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}
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~UsageCounter()
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{
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const sal_Int32 nCount( osl_decrementInterlockedCount( &s_nCount ) );
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if( !nCount )
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{
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OSL_TRACE( "%s, last instance deleted.\n",
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BOOST_CURRENT_FUNCTION );
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}
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else
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{
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OSL_TRACE( "%s, %d instances left.\n",
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BOOST_CURRENT_FUNCTION,
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nCount );
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}
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}
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private:
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static oslInterlockedCount s_nCount;
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};
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template< class Type > oslInterlockedCount UsageCounter<Type>::s_nCount = 0;
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}
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#endif /* _NULLCANVAS_USAGECOUNTER_HXX */
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