office-gobmx/canvas/source/null/null_usagecounter.hxx
Sebastian Spaeth 4905a19032 Add vim/emacs modelines to all source files
Fixes #fdo30794
Based on bin/add-modelines script (originally posted in mail
1286706307.1871.1399280959@webmail.messagingengine.com)

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2010-10-14 17:02:15 +02:00

79 lines
2.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#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: */