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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_canvas.hxx"
30 
31 
32 #ifdef WNT
33 # if defined _MSC_VER
34 # pragma warning(push,1)
35 # endif
36 
37 # include <windows.h>
38 
39 # if defined _MSC_VER
40 # pragma warning(pop)
41 # endif
42 #endif
43 
44 #include "osl/diagnose.h"
45 #include "canvas/prioritybooster.hxx"
46 
47 
48 namespace canvas
49 {
50     namespace tools
51     {
52         struct PriorityBooster_Impl
53         {
54             int mnOldPriority;
55         };
56 
57         PriorityBooster::PriorityBooster( sal_Int32 nDelta ) :
58             mpImpl( new PriorityBooster_Impl )
59         {
60 #ifdef WNT
61             HANDLE aCurrThread = GetCurrentThread();
62             mpImpl->mnOldPriority = GetThreadPriority( aCurrThread );
63 
64             if ( 0 == SetThreadPriority( aCurrThread, mpImpl->mnOldPriority + nDelta ) )
65             {
66                 OSL_ENSURE( false,
67                             "PriorityBooster::PriorityBooster(): Was not able to modify thread priority" );
68             }
69 #else
70             nDelta = 0; // #i55991# placate gcc warning
71 #endif
72         }
73 
74         PriorityBooster::~PriorityBooster()
75         {
76 #ifdef WNT
77             SetThreadPriority( GetCurrentThread(),
78                                mpImpl->mnOldPriority );
79 #endif
80         }
81 	} // namespace tools
82 
83 } // namespace canvas
84