diff options
Diffstat (limited to 'canvas/source/tools/prioritybooster.cxx')
-rw-r--r-- | canvas/source/tools/prioritybooster.cxx | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/canvas/source/tools/prioritybooster.cxx b/canvas/source/tools/prioritybooster.cxx new file mode 100644 index 000000000000..984003ebc984 --- /dev/null +++ b/canvas/source/tools/prioritybooster.cxx @@ -0,0 +1,83 @@ +/************************************************************************* + * + * 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 |