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28 lines
689 B
C
28 lines
689 B
C
/*
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* PROJECT: ReactOS Kernel - Vista+ APIs
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* LICENSE: GPL v2 - See COPYING in the top level directory
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* FILE: lib/drivers/ntoskrnl_vista/ke.c
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* PURPOSE: Ke functions of Vista+
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* PROGRAMMERS: Pierre Schweitzer <pierre@reactos.org>
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*/
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#include <ntdef.h>
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#include <ntifs.h>
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NTKERNELAPI
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ULONG
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NTAPI
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KeQueryActiveProcessorCount(OUT PKAFFINITY ActiveProcessors OPTIONAL)
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{
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RTL_BITMAP Bitmap;
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KAFFINITY ActiveMap = KeQueryActiveProcessors();
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if (ActiveProcessors != NULL)
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{
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*ActiveProcessors = ActiveMap;
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}
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RtlInitializeBitMap(&Bitmap, &ActiveMap, sizeof(ActiveMap) * 8);
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return RtlNumberOfSetBits(&Bitmap);
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}
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