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Add support for RTL_BITMAP64 on x64 builds

svn path=/trunk/; revision=58761
This commit is contained in:
Timo Kreuzer 2013-04-14 18:49:20 +00:00
parent 6090c3ee06
commit 75082f2302
3 changed files with 183 additions and 124 deletions
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1
reactos/lib/rtl/CMakeLists.txt
View file

@ -82,6 +82,7 @@ elseif(ARCH STREQUAL "amd64")
amd64/except_asm.S
amd64/slist.S)
list(APPEND SOURCE
bitmap64.c
byteswap.c
amd64/unwind.c
amd64/stubs.c

293
reactos/lib/rtl/bitmap.c
View file

@ -18,6 +18,47 @@
#undef ASSERT
#define ASSERT(...)
#ifdef USE_RTL_BITMAP64
#define _BITCOUNT 64
typedef ULONG64 BITMAP_INDEX, *PBITMAP_INDEX;
typedef ULONG64 BITMAP_BUFFER, *PBITMAP_BUFFER;
#define RTL_BITMAP RTL_BITMAP64
#define PRTL_BITMAP PRTL_BITMAP64
#define RTL_BITMAP_RUN RTL_BITMAP_RUN64
#define PRTL_BITMAP_RUN PRTL_BITMAP_RUN64
#undef BitScanForward
#define BitScanForward BitScanForward64
#define RtlFillMemoryUlong RtlFillMemoryUlonglong
#define RtlInitializeBitMap RtlInitializeBitMap64
#define RtlClearAllBits RtlClearAllBits64
#define RtlSetAllBits RtlSetAllBits64
#define RtlClearBit RtlClearBit64
#define RtlSetBit RtlSetBit64
#define RtlClearBits RtlClearBits64
#define RtlSetBits RtlSetBits64
#define RtlTestBit RtlTestBit64
#define RtlAreBitsClear RtlAreBitsClear64
#define RtlAreBitsSet RtlAreBitsSet64
#define RtlNumberOfSetBits RtlNumberOfSetBits64
#define RtlNumberOfClearBits RtlNumberOfClearBits64
#define RtlFindClearBits RtlFindClearBits64
#define RtlFindSetBits RtlFindSetBits64
#define RtlFindClearBitsAndSet RtlFindClearBitsAndSet64
#define RtlFindSetBitsAndClear RtlFindSetBitsAndClear64
#define RtlFindNextForwardRunClear RtlFindNextForwardRunClear64
#define RtlFindNextForwardRunSet RtlFindNextForwardRunSet64
#define RtlFindFirstRunClear RtlFindFirstRunClear64
#define RtlFindLastBackwardRunClear RtlFindLastBackwardRunClear64
#define RtlFindClearRuns RtlFindClearRuns64
#define RtlFindLongestRunClear RtlFindLongestRunClear64
#define RtlFindLongestRunSet RtlFindLongestRunSet64
#else
#define _BITCOUNT 32
typedef ULONG BITMAP_INDEX, *PBITMAP_INDEX;
typedef ULONG BITMAP_BUFFER, *PBITMAP_BUFFER;
#endif
/* DATA *********************************************************************/
/* Number of set bits per byte value */
@ -48,22 +89,22 @@ BitCountTable[256] =
/* PRIVATE FUNCTIONS ********************************************************/
static __inline
ULONG
BITMAP_INDEX
RtlpGetLengthOfRunClear(
IN PRTL_BITMAP BitMapHeader,
IN ULONG StartingIndex,
IN ULONG MaxLength)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX StartingIndex,
_In_ BITMAP_INDEX MaxLength)
{
ULONG Value, BitPos, Length;
PULONG Buffer, MaxBuffer;
BITMAP_INDEX Value, BitPos, Length;
PBITMAP_BUFFER Buffer, MaxBuffer;
/* Calculate positions */
Buffer = BitMapHeader->Buffer + StartingIndex / 32;
BitPos = StartingIndex & 31;
Buffer = BitMapHeader->Buffer + StartingIndex / _BITCOUNT;
BitPos = StartingIndex & (_BITCOUNT - 1);
/* Calculate the maximum length */
MaxLength = min(MaxLength, BitMapHeader->SizeOfBitMap - StartingIndex);
MaxBuffer = Buffer + (BitPos + MaxLength + 31) / 32;
MaxBuffer = Buffer + (BitPos + MaxLength + _BITCOUNT - 1) / _BITCOUNT;
/* Clear the bits that don't belong to this run */
Value = *Buffer++ >> BitPos << BitPos;
@ -85,8 +126,8 @@ RtlpGetLengthOfRunClear(
BitScanForward(&BitPos, Value);
/* Calculate length up to where we read */
Length = (ULONG)(Buffer - BitMapHeader->Buffer) * 32 - StartingIndex;
Length += BitPos - 32;
Length = (BITMAP_INDEX)(Buffer - BitMapHeader->Buffer) * _BITCOUNT - StartingIndex;
Length += BitPos - _BITCOUNT;
/* Make sure we don't go past the last bit */
if (Length > BitMapHeader->SizeOfBitMap - StartingIndex)
@ -97,22 +138,22 @@ RtlpGetLengthOfRunClear(
}
static __inline
ULONG
BITMAP_INDEX
RtlpGetLengthOfRunSet(
IN PRTL_BITMAP BitMapHeader,
IN ULONG StartingIndex,
IN ULONG MaxLength)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX StartingIndex,
_In_ BITMAP_INDEX MaxLength)
{
ULONG InvValue, BitPos, Length;
PULONG Buffer, MaxBuffer;
BITMAP_INDEX InvValue, BitPos, Length;
PBITMAP_BUFFER Buffer, MaxBuffer;
/* Calculate positions */
Buffer = BitMapHeader->Buffer + StartingIndex / 32;
BitPos = StartingIndex & 31;
Buffer = BitMapHeader->Buffer + StartingIndex / _BITCOUNT;
BitPos = StartingIndex & (_BITCOUNT - 1);
/* Calculate the maximum length */
MaxLength = min(MaxLength, BitMapHeader->SizeOfBitMap - StartingIndex);
MaxBuffer = Buffer + (BitPos + MaxLength + 31) / 32;
MaxBuffer = Buffer + (BitPos + MaxLength + _BITCOUNT - 1) / _BITCOUNT;
/* Get the inversed value, clear bits that don't belong to the run */
InvValue = ~(*Buffer++) >> BitPos << BitPos;
@ -134,8 +175,8 @@ RtlpGetLengthOfRunSet(
BitScanForward(&BitPos, InvValue);
/* Calculate length up to where we read */
Length = (ULONG)(Buffer - BitMapHeader->Buffer) * 32 - StartingIndex;
Length += BitPos - 32;
Length = (ULONG)(Buffer - BitMapHeader->Buffer) * _BITCOUNT - StartingIndex;
Length += BitPos - _BITCOUNT;
/* Make sure we don't go past the last bit */
if (Length > BitMapHeader->SizeOfBitMap - StartingIndex)
@ -148,6 +189,7 @@ RtlpGetLengthOfRunSet(
/* PUBLIC FUNCTIONS **********************************************************/
#ifndef USE_RTL_BITMAP64
CCHAR
NTAPI
RtlFindMostSignificantBit(ULONGLONG Value)
@ -160,9 +202,9 @@ RtlFindMostSignificantBit(ULONGLONG Value)
return (CCHAR)Position;
}
#else
if (BitScanReverse(&Position, Value >> 32))
if (BitScanReverse(&Position, Value >> _BITCOUNT))
{
return (CCHAR)(Position + 32);
return (CCHAR)(Position + _BITCOUNT);
}
else if (BitScanReverse(&Position, (ULONG)Value))
{
@ -188,20 +230,21 @@ RtlFindLeastSignificantBit(ULONGLONG Value)
{
return (CCHAR)Position;
}
else if (BitScanForward(&Position, Value >> 32))
else if (BitScanForward(&Position, Value >> _BITCOUNT))
{
return (CCHAR)(Position + 32);
return (CCHAR)(Position + _BITCOUNT);
}
#endif
return -1;
}
#endif /* !USE_RTL_BITMAP64 */
VOID
NTAPI
RtlInitializeBitMap(
IN PRTL_BITMAP BitMapHeader,
IN PULONG BitMapBuffer,
IN ULONG SizeOfBitMap)
_Out_ PRTL_BITMAP BitMapHeader,
_In_ PBITMAP_BUFFER BitMapBuffer,
_In_ BITMAP_INDEX SizeOfBitMap)
{
/* Setup the bitmap header */
BitMapHeader->SizeOfBitMap = SizeOfBitMap;
@ -211,60 +254,60 @@ RtlInitializeBitMap(
VOID
NTAPI
RtlClearAllBits(
IN OUT PRTL_BITMAP BitMapHeader)
_In_ PRTL_BITMAP BitMapHeader)
{
ULONG LengthInUlongs;
BITMAP_INDEX LengthInUlongs;
LengthInUlongs = (BitMapHeader->SizeOfBitMap + 31) >> 5;
RtlFillMemoryUlong(BitMapHeader->Buffer, LengthInUlongs << 2, 0);
LengthInUlongs = (BitMapHeader->SizeOfBitMap + _BITCOUNT - 1) / _BITCOUNT;
RtlFillMemoryUlong(BitMapHeader->Buffer, LengthInUlongs * sizeof(BITMAP_INDEX), 0);
}
VOID
NTAPI
RtlSetAllBits(
IN OUT PRTL_BITMAP BitMapHeader)
_In_ PRTL_BITMAP BitMapHeader)
{
ULONG LengthInUlongs;
BITMAP_INDEX LengthInUlongs;
LengthInUlongs = (BitMapHeader->SizeOfBitMap + 31) >> 5;
RtlFillMemoryUlong(BitMapHeader->Buffer, LengthInUlongs << 2, ~0);
LengthInUlongs = (BitMapHeader->SizeOfBitMap + _BITCOUNT - 1) / _BITCOUNT;
RtlFillMemoryUlong(BitMapHeader->Buffer, LengthInUlongs * sizeof(BITMAP_INDEX), ~0);
}
VOID
NTAPI
RtlClearBit(
IN PRTL_BITMAP BitMapHeader,
IN ULONG BitNumber)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX BitNumber)
{
ASSERT(BitNumber <= BitMapHeader->SizeOfBitMap);
BitMapHeader->Buffer[BitNumber >> 5] &= ~(1 << (BitNumber & 31));
BitMapHeader->Buffer[BitNumber / _BITCOUNT] &= ~(1 << (BitNumber & (_BITCOUNT - 1)));
}
VOID
NTAPI
RtlSetBit(
IN PRTL_BITMAP BitMapHeader,
IN ULONG BitNumber)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX BitNumber)
{
ASSERT(BitNumber <= BitMapHeader->SizeOfBitMap);
BitMapHeader->Buffer[BitNumber >> 5] |= (1 << (BitNumber & 31));
BitMapHeader->Buffer[BitNumber / _BITCOUNT] |= ((BITMAP_INDEX)1 << (BitNumber & (_BITCOUNT - 1)));
}
VOID
NTAPI
RtlClearBits(
IN PRTL_BITMAP BitMapHeader,
IN ULONG StartingIndex,
IN ULONG NumberToClear)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX StartingIndex,
_In_ BITMAP_INDEX NumberToClear)
{
ULONG Bits, Mask;
PULONG Buffer;
BITMAP_INDEX Bits, Mask;
PBITMAP_BUFFER Buffer;
ASSERT(StartingIndex + NumberToClear <= BitMapHeader->SizeOfBitMap);
/* Calculate buffer start and first bit index */
Buffer = &BitMapHeader->Buffer[StartingIndex >> 5];
Bits = StartingIndex & 31;
Buffer = &BitMapHeader->Buffer[StartingIndex / _BITCOUNT];
Bits = StartingIndex & (_BITCOUNT - 1);
/* Are we unaligned? */
if (Bits)
@ -273,7 +316,7 @@ RtlClearBits(
Mask = MAXULONG << Bits;
/* This is what's left in the first ULONG */
Bits = 32 - Bits;
Bits = _BITCOUNT - Bits;
/* Even less bits to clear? */
if (NumberToClear < Bits)
@ -299,10 +342,10 @@ RtlClearBits(
/* Clear all full ULONGs */
RtlFillMemoryUlong(Buffer, NumberToClear >> 3, 0);
Buffer += NumberToClear >> 5;
Buffer += NumberToClear / _BITCOUNT;
/* Clear what's left */
NumberToClear &= 31;
NumberToClear &= (_BITCOUNT - 1);
Mask = MAXULONG << NumberToClear;
*Buffer &= Mask;
}
@ -310,18 +353,18 @@ RtlClearBits(
VOID
NTAPI
RtlSetBits(
IN PRTL_BITMAP BitMapHeader,
IN ULONG StartingIndex,
IN ULONG NumberToSet)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX StartingIndex,
_In_ BITMAP_INDEX NumberToSet)
{
ULONG Bits, Mask;
PULONG Buffer;
BITMAP_INDEX Bits, Mask;
PBITMAP_BUFFER Buffer;
ASSERT(StartingIndex + NumberToSet <= BitMapHeader->SizeOfBitMap);
/* Calculate buffer start and first bit index */
Buffer = &BitMapHeader->Buffer[StartingIndex >> 5];
Bits = StartingIndex & 31;
Buffer = &BitMapHeader->Buffer[StartingIndex / _BITCOUNT];
Bits = StartingIndex & (_BITCOUNT - 1);
/* Are we unaligned? */
if (Bits)
@ -330,7 +373,7 @@ RtlSetBits(
Mask = MAXULONG << Bits;
/* This is what's left in the first ULONG */
Bits = 32 - Bits;
Bits = _BITCOUNT - Bits;
/* Even less bits to clear? */
if (NumberToSet < Bits)
@ -356,10 +399,10 @@ RtlSetBits(
/* Set all full ULONGs */
RtlFillMemoryUlong(Buffer, NumberToSet >> 3, MAXULONG);
Buffer += NumberToSet >> 5;
Buffer += NumberToSet / _BITCOUNT;
/* Set what's left */
NumberToSet &= 31;
NumberToSet &= (_BITCOUNT - 1);
Mask = MAXULONG << NumberToSet;
*Buffer |= ~Mask;
}
@ -367,19 +410,19 @@ RtlSetBits(
BOOLEAN
NTAPI
RtlTestBit(
IN PRTL_BITMAP BitMapHeader,
IN ULONG BitNumber)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX BitNumber)
{
ASSERT(BitNumber < BitMapHeader->SizeOfBitMap);
return (BitMapHeader->Buffer[BitNumber >> 5] >> (BitNumber & 31)) & 1;
return (BitMapHeader->Buffer[BitNumber / _BITCOUNT] >> (BitNumber & (_BITCOUNT - 1))) & 1;
}
BOOLEAN
NTAPI
RtlAreBitsClear(
IN PRTL_BITMAP BitMapHeader,
IN ULONG StartingIndex,
IN ULONG Length)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX StartingIndex,
_In_ BITMAP_INDEX Length)
{
/* Verify parameters */
if ((StartingIndex + Length > BitMapHeader->SizeOfBitMap) ||
@ -392,9 +435,9 @@ RtlAreBitsClear(
BOOLEAN
NTAPI
RtlAreBitsSet(
IN PRTL_BITMAP BitMapHeader,
IN ULONG StartingIndex,
IN ULONG Length)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX StartingIndex,
_In_ BITMAP_INDEX Length)
{
/* Verify parameters */
if ((StartingIndex + Length > BitMapHeader->SizeOfBitMap) ||
@ -404,13 +447,14 @@ RtlAreBitsSet(
return RtlpGetLengthOfRunSet(BitMapHeader, StartingIndex, Length) >= Length;
}
ULONG
BITMAP_INDEX
NTAPI
RtlNumberOfSetBits(
IN PRTL_BITMAP BitMapHeader)
_In_ PRTL_BITMAP BitMapHeader)
{
PUCHAR Byte, MaxByte;
ULONG BitCount = 0, Shift;
BITMAP_INDEX BitCount = 0;
ULONG Shift;
Byte = (PUCHAR)BitMapHeader->Buffer;
MaxByte = Byte + BitMapHeader->SizeOfBitMap / 8;
@ -426,23 +470,23 @@ RtlNumberOfSetBits(
return BitCount;
}
ULONG
BITMAP_INDEX
NTAPI
RtlNumberOfClearBits(
IN PRTL_BITMAP BitMapHeader)
_In_ PRTL_BITMAP BitMapHeader)
{
/* Do some math */
return BitMapHeader->SizeOfBitMap - RtlNumberOfSetBits(BitMapHeader);
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindClearBits(
IN PRTL_BITMAP BitMapHeader,
IN ULONG NumberToFind,
IN ULONG HintIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX NumberToFind,
_In_ BITMAP_INDEX HintIndex)
{
ULONG CurrentBit, Margin, CurrentLength;
BITMAP_INDEX CurrentBit, Margin, CurrentLength;
/* Check for valid parameters */
if (!BitMapHeader || NumberToFind > BitMapHeader->SizeOfBitMap)
@ -503,14 +547,14 @@ retry:
return MAXULONG;
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindSetBits(
IN PRTL_BITMAP BitMapHeader,
IN ULONG NumberToFind,
IN ULONG HintIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX NumberToFind,
_In_ BITMAP_INDEX HintIndex)
{
ULONG CurrentBit, Margin, CurrentLength;
BITMAP_INDEX CurrentBit, Margin, CurrentLength;
/* Check for valid parameters */
if (!BitMapHeader || NumberToFind > BitMapHeader->SizeOfBitMap)
@ -571,14 +615,14 @@ retry:
return MAXULONG;
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindClearBitsAndSet(
PRTL_BITMAP BitMapHeader,
ULONG NumberToFind,
ULONG HintIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX NumberToFind,
_In_ BITMAP_INDEX HintIndex)
{
ULONG Position;
BITMAP_INDEX Position;
/* Try to find clear bits */
Position = RtlFindClearBits(BitMapHeader, NumberToFind, HintIndex);
@ -594,14 +638,14 @@ RtlFindClearBitsAndSet(
return Position;
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindSetBitsAndClear(
IN PRTL_BITMAP BitMapHeader,
IN ULONG NumberToFind,
IN ULONG HintIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX NumberToFind,
_In_ BITMAP_INDEX HintIndex)
{
ULONG Position;
BITMAP_INDEX Position;
/* Try to find set bits */
Position = RtlFindSetBits(BitMapHeader, NumberToFind, HintIndex);
@ -617,14 +661,14 @@ RtlFindSetBitsAndClear(
return Position;
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindNextForwardRunClear(
IN PRTL_BITMAP BitMapHeader,
IN ULONG FromIndex,
IN PULONG StartingRunIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX FromIndex,
_Out_ PBITMAP_INDEX StartingRunIndex)
{
ULONG Length;
BITMAP_INDEX Length;
/* Check for buffer overrun */
if (FromIndex >= BitMapHeader->SizeOfBitMap)
@ -641,14 +685,14 @@ RtlFindNextForwardRunClear(
return RtlpGetLengthOfRunClear(BitMapHeader, FromIndex + Length, MAXULONG);
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindNextForwardRunSet(
IN PRTL_BITMAP BitMapHeader,
IN ULONG FromIndex,
IN PULONG StartingRunIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX FromIndex,
_Out_ PBITMAP_INDEX StartingRunIndex)
{
ULONG Length;
BITMAP_INDEX Length;
/* Check for buffer overrun */
if (FromIndex >= BitMapHeader->SizeOfBitMap)
@ -665,11 +709,11 @@ RtlFindNextForwardRunSet(
return RtlpGetLengthOfRunSet(BitMapHeader, FromIndex, MAXULONG);
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindFirstRunClear(
IN PRTL_BITMAP BitMapHeader,
IN PULONG StartingIndex)
_In_ PRTL_BITMAP BitMapHeader,
_Out_ PBITMAP_INDEX StartingIndex)
{
return RtlFindNextForwardRunClear(BitMapHeader, 0, StartingIndex);
}
@ -677,9 +721,9 @@ RtlFindFirstRunClear(
ULONG
NTAPI
RtlFindLastBackwardRunClear(
IN PRTL_BITMAP BitMapHeader,
IN ULONG FromIndex,
IN PULONG StartingRunIndex)
_In_ PRTL_BITMAP BitMapHeader,
_In_ BITMAP_INDEX FromIndex,
_Out_ PBITMAP_INDEX StartingRunIndex)
{
UNIMPLEMENTED;
return 0;
@ -689,12 +733,13 @@ RtlFindLastBackwardRunClear(
ULONG
NTAPI
RtlFindClearRuns(
IN PRTL_BITMAP BitMapHeader,
IN PRTL_BITMAP_RUN RunArray,
IN ULONG SizeOfRunArray,
IN BOOLEAN LocateLongestRuns)
_In_ PRTL_BITMAP BitMapHeader,
_In_ PRTL_BITMAP_RUN RunArray,
_In_ ULONG SizeOfRunArray,
_In_ BOOLEAN LocateLongestRuns)
{
ULONG StartingIndex, NumberOfBits, Run, FromIndex = 0, SmallestRun = 0;
BITMAP_INDEX StartingIndex, NumberOfBits, FromIndex = 0, SmallestRun = 0;
ULONG Run;
/* Loop the runs */
for (Run = 0; Run < SizeOfRunArray; Run++)
@ -764,13 +809,13 @@ RtlFindClearRuns(
return Run;
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindLongestRunClear(
IN PRTL_BITMAP BitMapHeader,
IN PULONG StartingIndex)
IN PBITMAP_INDEX StartingIndex)
{
ULONG NumberOfBits, Index, MaxNumberOfBits = 0, FromIndex = 0;
BITMAP_INDEX NumberOfBits, Index, MaxNumberOfBits = 0, FromIndex = 0;
while (1)
{
@ -797,13 +842,13 @@ RtlFindLongestRunClear(
return MaxNumberOfBits;
}
ULONG
BITMAP_INDEX
NTAPI
RtlFindLongestRunSet(
IN PRTL_BITMAP BitMapHeader,
IN PULONG StartingIndex)
IN PBITMAP_INDEX StartingIndex)
{
ULONG NumberOfBits, Index, MaxNumberOfBits = 0, FromIndex = 0;
BITMAP_INDEX NumberOfBits, Index, MaxNumberOfBits = 0, FromIndex = 0;
while (1)
{

13
reactos/lib/rtl/rtlp.h
View file

@ -195,4 +195,17 @@ extern HANDLE TimerThreadHandle;
NTSTATUS
RtlpInitializeTimerThread(VOID);
/* bitmap64.c */
typedef struct _RTL_BITMAP64
{
ULONG64 SizeOfBitMap;
PULONG64 Buffer;
} RTL_BITMAP64, *PRTL_BITMAP64;
typedef struct _RTL_BITMAP_RUN64
{
ULONG64 StartingIndex;
ULONG64 NumberOfBits;
} RTL_BITMAP_RUN64, *PRTL_BITMAP_RUN64;
/* EOF */