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/*************************************************************************
*
* 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.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_canvas.hxx"
#ifdef WNT
# if defined _MSC_VER
# pragma warning(push,1)
# endif
# include <windows.h>
# if defined _MSC_VER
# pragma warning(pop)
# endif
#endif
#include "osl/diagnose.h"
#include "canvas/prioritybooster.hxx"
namespace canvas
{
namespace tools
{
struct PriorityBooster_Impl
{
int mnOldPriority;
};
PriorityBooster::PriorityBooster( sal_Int32 nDelta ) :
mpImpl( new PriorityBooster_Impl )
{
#ifdef WNT
HANDLE aCurrThread = GetCurrentThread();
mpImpl->mnOldPriority = GetThreadPriority( aCurrThread );
if ( 0 == SetThreadPriority( aCurrThread, mpImpl->mnOldPriority + nDelta ) )
{
OSL_ENSURE( false,
"PriorityBooster::PriorityBooster(): Was not able to modify thread priority" );
}
#else
nDelta = 0; // #i55991# placate gcc warning
#endif
}
PriorityBooster::~PriorityBooster()
{
#ifdef WNT
SetThreadPriority( GetCurrentThread(),
mpImpl->mnOldPriority );
#endif
}
} // namespace tools
} // namespace canvas
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