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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: prioritybooster.cxx,v $
+ * $Revision: 1.7 $
+ *
+ * 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