mirror of
https://github.com/reactos/reactos.git
synced 2024-09-01 16:18:46 +00:00
Added more bitmap functions
Fixed some STDCALL issues svn path=/trunk/; revision=1035
This commit is contained in:
Eric Kohl
parent
a12836346f
commit
e2eb8c1697
|
|
@ -1,4 +1,4 @@
|
|||
/* $Id: rtl.h,v 1.28 2000/03/03 00:38:15 ekohl Exp $
|
||||
/* $Id: rtl.h,v 1.29 2000/03/08 01:52:52 ekohl Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
|
|
@ -262,6 +262,22 @@ RtlAppendUnicodeToString (
|
|||
PWSTR Source
|
||||
);
|
||||
|
||||
BOOLEAN
|
||||
STDCALL
|
||||
RtlAreBitsClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG StartingIndex,
|
||||
ULONG Length
|
||||
);
|
||||
|
||||
BOOLEAN
|
||||
STDCALL
|
||||
RtlAreBitsSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG StartingIndex,
|
||||
ULONG Length
|
||||
);
|
||||
|
||||
NTSTATUS
|
||||
STDCALL
|
||||
RtlCharToInteger (
|
||||
|
|
@ -499,6 +515,66 @@ RtlFillMemoryUlong (
|
|||
ULONG Fill
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindClearBits (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindClearBitsAndSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindFirstRunClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindFirstRunSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindLongestRunClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindLongestRunSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindSetBits (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindSetBitsAndClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
);
|
||||
|
||||
VOID
|
||||
STDCALL
|
||||
RtlFreeAnsiString (
|
||||
|
|
@ -839,6 +915,18 @@ RtlNtStatusToPsxErrno (
|
|||
NTSTATUS StatusCode
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlNumberOfClearBits (
|
||||
PRTL_BITMAP BitMapHeader
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlNumberOfSetBits (
|
||||
PRTL_BITMAP BitMapHeader
|
||||
);
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlOemStringToUnicodeSize (
|
||||
|
|
@ -914,6 +1002,14 @@ RtlSetAllBits (
|
|||
IN PRTL_BITMAP BitMapHeader
|
||||
);
|
||||
|
||||
VOID
|
||||
STDCALL
|
||||
RtlSetBits (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG StartingIndex,
|
||||
ULONG NumberToSet
|
||||
);
|
||||
|
||||
NTSTATUS
|
||||
STDCALL
|
||||
RtlSetDaclSecurityDescriptor (
|
||||
|
|
@ -931,15 +1027,6 @@ RtlSizeHeap (
|
|||
PVOID pmem
|
||||
);
|
||||
|
||||
#if 0
|
||||
PWSTR
|
||||
RtlStrtok (
|
||||
PUNICODE_STRING _string,
|
||||
PWSTR _sep,
|
||||
PWSTR * temp
|
||||
);
|
||||
#endif
|
||||
|
||||
VOID
|
||||
RtlStoreLong (
|
||||
PULONG Address,
|
||||
|
|
|
|||
|
|
@ -29,7 +29,25 @@ typedef struct t_KeServiceDescriptorTableEntry {
|
|||
|
||||
#pragma pack()
|
||||
|
||||
|
||||
/* --- NTOSKRNL.EXE --- */
|
||||
#if defined(__NTOSKRNL__)
|
||||
extern
|
||||
KE_SERVICE_DESCRIPTOR_TABLE_ENTRY
|
||||
KeServiceDescriptorTable[SSDT_MAX_ENTRIES] __declspec(dllexport);
|
||||
#else
|
||||
extern
|
||||
KE_SERVICE_DESCRIPTOR_TABLE_ENTRY
|
||||
KeServiceDescriptorTable[SSDT_MAX_ENTRIES] __declspec(dllimport);
|
||||
#endif
|
||||
|
||||
extern
|
||||
KE_SERVICE_DESCRIPTOR_TABLE_ENTRY
|
||||
KeServiceDescriptorTableShadow[SSDT_MAX_ENTRIES];
|
||||
|
||||
|
||||
BOOLEAN
|
||||
STDCALL
|
||||
KeAddSystemServiceTable (
|
||||
PSSDT SSDT,
|
||||
PULONG ServiceCounterTable,
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $Id: usercall.c,v 1.9 2000/02/25 00:33:30 ekohl Exp $
|
||||
/* $Id: usercall.c,v 1.10 2000/03/08 01:53:59 ekohl Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
|
|
@ -22,9 +22,6 @@
|
|||
#include <ddk/defines.h>
|
||||
|
||||
|
||||
extern KE_SERVICE_DESCRIPTOR_TABLE_ENTRY KeServiceDescriptorTable[];
|
||||
extern KE_SERVICE_DESCRIPTOR_TABLE_ENTRY KeServiceDescriptorTableShadow[];
|
||||
|
||||
|
||||
#define _STR(x) #x
|
||||
#define STR(x) _STR(x)
|
||||
|
|
@ -92,6 +89,7 @@ ULONG KiAfterSystemCallHook(ULONG NtStatus, PCONTEXT Context)
|
|||
// TableIndex is 0 based
|
||||
// ServiceCountTable its not used at the moment
|
||||
BOOLEAN
|
||||
STDCALL
|
||||
KeAddSystemServiceTable (
|
||||
PSSDT SSDT,
|
||||
PULONG ServiceCounterTable,
|
||||
|
|
@ -285,3 +283,5 @@ void interrupt_handler2e(void);
|
|||
"popl %ebp\n\t" /* Ebp */
|
||||
|
||||
"iret\n\t");
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
; $Id: ntoskrnl.def,v 1.53 2000/03/06 01:02:30 ea Exp $
|
||||
; $Id: ntoskrnl.def,v 1.54 2000/03/08 01:55:34 ekohl Exp $
|
||||
;
|
||||
; reactos/ntoskrnl/ntoskrnl.def
|
||||
;
|
||||
|
|
@ -187,7 +187,7 @@ IofCompleteRequest@8
|
|||
KdDebuggerEnabled DATA
|
||||
KdDebuggerNotPresent DATA
|
||||
KdPollBreakIn@0
|
||||
KeAddSystemServiceTable
|
||||
KeAddSystemServiceTable@20
|
||||
KeBugCheck
|
||||
KeBugCheckEx
|
||||
KeClearEvent
|
||||
|
|
@ -203,17 +203,18 @@ KeInsertQueueDpc
|
|||
KeQuerySystemTime
|
||||
KeReadStateEvent
|
||||
KeResetEvent
|
||||
KeServiceDescriptorTable DATA
|
||||
KeSetEvent
|
||||
KeSetTimer
|
||||
KeSynchronizeExecution
|
||||
KeWaitForSingleObject
|
||||
MmGetSystemAddressForMdl
|
||||
MmMapIoSpace
|
||||
NlsAnsiCodePage DATA
|
||||
NlsLeadByteInfo DATA
|
||||
NlsMbCodePageTag DATA
|
||||
NlsMbOemCodePageTag DATA
|
||||
NlsOemLeadByteInfo DATA
|
||||
NlsAnsiCodePage DATA
|
||||
NlsLeadByteInfo DATA
|
||||
NlsMbCodePageTag DATA
|
||||
NlsMbOemCodePageTag DATA
|
||||
NlsOemLeadByteInfo DATA
|
||||
NtAddAtom@8
|
||||
NtAdjustPrivilegesToken@24
|
||||
NtAllocateLocallyUniqueId@4
|
||||
|
|
@ -287,8 +288,8 @@ RtlAppendUnicodeStringToString@8
|
|||
RtlAppendUnicodeToString@8
|
||||
;RtlAreAllAccessesGranted
|
||||
;RtlAreAnyAccessesGranted
|
||||
;RtlAreBitsClear
|
||||
;RtlAreBitsSet
|
||||
RtlAreBitsClear@12
|
||||
RtlAreBitsSet@12
|
||||
;RtlAssert
|
||||
;RtlCaptureStackBackTrace
|
||||
RtlCharToInteger@12
|
||||
|
|
@ -342,15 +343,15 @@ RtlExtendedLargeIntegerDivide@16
|
|||
RtlExtendedMagicDivide@20
|
||||
RtlFillMemory@12
|
||||
RtlFillMemoryUlong@12
|
||||
;RtlFindClearBits
|
||||
;RtlFindClearBitsAndSet
|
||||
;RtlFindFirstRunClear
|
||||
;RtlFindFirstRunSet
|
||||
;RtlFindLongestRunClear
|
||||
;RtlFindLongestRunSet
|
||||
RtlFindClearBits@12
|
||||
RtlFindClearBitsAndSet@12
|
||||
RtlFindFirstRunClear@8
|
||||
RtlFindFirstRunSet@8
|
||||
RtlFindLongestRunClear@8
|
||||
RtlFindLongestRunSet@8
|
||||
;RtlFindMessage
|
||||
;RtlFindSetBits
|
||||
;RtlFindSetBitsAndClear
|
||||
RtlFindSetBits@12
|
||||
RtlFindSetBitsAndClear@12
|
||||
;RtlFindUnicodePrefix
|
||||
;RtlFormatCurrentUserKeyPath
|
||||
RtlFreeAnsiString@4
|
||||
|
|
@ -399,8 +400,8 @@ RtlMultiByteToUnicodeSize@12
|
|||
;RtlNtStatusToDosError
|
||||
;RtlNtStatusToDosErrorNoTeb
|
||||
;RtlNumberGenericTableElements
|
||||
;RtlNumberOfClearBits
|
||||
;RtlNumberOfSetBits
|
||||
RtlNumberOfClearBits@4
|
||||
RtlNumberOfSetBits@4
|
||||
RtlOemStringToCountedUnicodeString@12
|
||||
RtlOemStringToUnicodeSize@4
|
||||
RtlOemStringToUnicodeString@12
|
||||
|
|
@ -721,4 +722,3 @@ WRITE_PORT_ULONG@8
|
|||
WRITE_PORT_USHORT@8
|
||||
InsertTailList
|
||||
RemoveEntryList
|
||||
_KeServiceDescriptorTable DATA
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
; $Id: ntoskrnl.edf,v 1.40 2000/03/06 01:02:30 ea Exp $
|
||||
; $Id: ntoskrnl.edf,v 1.41 2000/03/08 01:55:34 ekohl Exp $
|
||||
;
|
||||
; reactos/ntoskrnl/ntoskrnl.def
|
||||
;
|
||||
|
|
@ -187,7 +187,7 @@ IofCompleteRequest=IofCompleteRequest@8
|
|||
KdDebuggerEnabled DATA
|
||||
KdDebuggerNotPresent DATA
|
||||
KdPollBreakIn=KdPollBreakIn@0
|
||||
KeAddSystemServiceTable
|
||||
KeAddSystemServiceTable=KeAddSystemServiceTable@20
|
||||
KeBugCheck
|
||||
KeBugCheckEx
|
||||
KeClearEvent
|
||||
|
|
@ -203,17 +203,18 @@ KeInsertQueueDpc
|
|||
KeQuerySystemTime
|
||||
KeReadStateEvent
|
||||
KeResetEvent
|
||||
KeServiceDescriptorTable DATA
|
||||
KeSetEvent
|
||||
KeSetTimer
|
||||
KeSynchronizeExecution
|
||||
KeWaitForSingleObject
|
||||
MmGetSystemAddressForMdl
|
||||
MmMapIoSpace
|
||||
NlsAnsiCodePage DATA
|
||||
NlsLeadByteInfo DATA
|
||||
NlsMbCodePageTag DATA
|
||||
NlsMbOemCodePageTag DATA
|
||||
NlsOemLeadByteInfo DATA
|
||||
NlsAnsiCodePage DATA
|
||||
NlsLeadByteInfo DATA
|
||||
NlsMbCodePageTag DATA
|
||||
NlsMbOemCodePageTag DATA
|
||||
NlsOemLeadByteInfo DATA
|
||||
NtAddAtom=NtAddAtom@8
|
||||
NtAdjustPrivilegesToken=NtAdjustPrivilegesToken@24
|
||||
NtAllocateLocallyUniqueId=NtAllocateLocallyUniqueId@4
|
||||
|
|
@ -280,6 +281,8 @@ RtlAppendAsciizToString=RtlAppendAsciizToString@8
|
|||
RtlAppendStringToString=RtlAppendStringToString@8
|
||||
RtlAppendUnicodeStringToString=RtlAppendUnicodeStringToString@8
|
||||
RtlAppendUnicodeToString=RtlAppendUnicodeToString@8
|
||||
RtlAreBitsClear=RtlAreBitsClear@12
|
||||
RtlAreBitsSet=RtlAreBitsSet@12
|
||||
RtlCharToInteger=RtlCharToInteger@12
|
||||
RtlClearAllBits=RtlClearAllBits@4
|
||||
RtlClearBits=RtlClearBits@12
|
||||
|
|
@ -308,6 +311,14 @@ RtlExtendedLargeIntegerDivide=RtlExtendedLargeIntegerDivide@16
|
|||
RtlExtendedMagicDivide=RtlExtendedMagicDivide@20
|
||||
RtlFillMemory=RtlFillMemory@12
|
||||
RtlFillMemoryUlong=RtlFillMemoryUlong@12
|
||||
RtlFindClearBits=RtlFindClearBits@12
|
||||
RtlFindClearBitsAndSet=RtlFindClearBitsAndSet@12
|
||||
RtlFindFirstRunClear=RtlFindFirstRunClear@8
|
||||
RtlFindFirstRunSet=RtlFindFirstRunSet@8
|
||||
RtlFindLongestRunClear=RtlFindLongestRunClear@8
|
||||
RtlFindLongestRunSet=RtlFindLongestRunSet@8
|
||||
RtlFindSetBits=RtlFindSetBits@12
|
||||
RtlFindSetBitsAndClear=RtlFindSetBitsAndClear@12
|
||||
RtlFreeAnsiString=RtlFreeAnsiString@4
|
||||
RtlFreeOemString=RtlFreeOemString@4
|
||||
RtlFreeUnicodeString=RtlFreeUnicodeString@4
|
||||
|
|
@ -335,6 +346,8 @@ RtlLengthSid=RtlLengthSid@4
|
|||
RtlMoveMemory=RtlMoveMemory@12
|
||||
RtlMultiByteToUnicodeN=RtlMultiByteToUnicodeN@20
|
||||
RtlMultiByteToUnicodeSize=RtlMultiByteToUnicodeSize@12
|
||||
RtlNumberOfClearBits=RtlNumberOfClearBits@4
|
||||
RtlNumberOfSetBits=RtlNumberOfSetBits@4
|
||||
RtlOemStringToCountedUnicodeString=RtlOemStringToCountedUnicodeString@12
|
||||
RtlOemStringToUnicodeSize=RtlOemStringToUnicodeSize@4
|
||||
RtlOemStringToUnicodeString=RtlOemStringToUnicodeString@12
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $Id: bitmap.c,v 1.1 2000/03/03 00:48:50 ekohl Exp $
|
||||
/* $Id: bitmap.c,v 1.2 2000/03/08 01:54:34 ekohl Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
|
|
@ -27,6 +27,84 @@ RtlInitializeBitMap (
|
|||
}
|
||||
|
||||
|
||||
BOOLEAN
|
||||
STDCALL
|
||||
RtlAreBitsClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG StartingIndex,
|
||||
ULONG Length
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Shift;
|
||||
ULONG Count;
|
||||
PCHAR Ptr;
|
||||
|
||||
if (StartingIndex >= Size ||
|
||||
!Length ||
|
||||
(StartingIndex + Length > Size))
|
||||
return FALSE;
|
||||
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (StartingIndex / 8);
|
||||
while (Length)
|
||||
{
|
||||
/* get bit shift in current byte */
|
||||
Shift = StartingIndex & 7;
|
||||
|
||||
/* get number of bits to check in current byte */
|
||||
Count = (Length > 8 - Shift) ? 8 - Shift : Length;
|
||||
|
||||
/* check byte */
|
||||
if (*Ptr++ & (~(0xFF << Count) << Shift))
|
||||
return FALSE;
|
||||
|
||||
Length -= Count;
|
||||
StartingIndex += Count;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
BOOLEAN
|
||||
STDCALL
|
||||
RtlAreBitsSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG StartingIndex,
|
||||
ULONG Length
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Shift;
|
||||
ULONG Count;
|
||||
PCHAR Ptr;
|
||||
|
||||
if (StartingIndex >= Size ||
|
||||
!Length ||
|
||||
(StartingIndex + Length > Size))
|
||||
return FALSE;
|
||||
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (StartingIndex / 8);
|
||||
while (Length)
|
||||
{
|
||||
/* get bit shift in current byte */
|
||||
Shift = StartingIndex & 7;
|
||||
|
||||
/* get number of bits to check in current byte */
|
||||
Count = (Length > 8 - Shift) ? 8 - Shift : Length;
|
||||
|
||||
/* check byte */
|
||||
if (~*Ptr++ & (~(0xFF << Count) << Shift))
|
||||
return FALSE;
|
||||
|
||||
Length -= Count;
|
||||
StartingIndex += Count;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
VOID
|
||||
STDCALL
|
||||
RtlClearAllBits (
|
||||
|
|
@ -48,9 +126,9 @@ RtlClearBits (
|
|||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG n;
|
||||
ULONG shift;
|
||||
PCHAR p;
|
||||
ULONG Count;
|
||||
ULONG Shift;
|
||||
PCHAR Ptr;
|
||||
|
||||
if (StartingIndex >= Size || NumberToClear == 0)
|
||||
return;
|
||||
|
|
@ -58,23 +136,469 @@ RtlClearBits (
|
|||
if (StartingIndex + NumberToClear > Size)
|
||||
NumberToClear = Size - StartingIndex;
|
||||
|
||||
p = (PCHAR)(BitMapHeader->Buffer + (StartingIndex / 8));
|
||||
Ptr = (PCHAR)(BitMapHeader->Buffer + (StartingIndex / 8));
|
||||
while (NumberToClear)
|
||||
{
|
||||
/* bit shift in current byte */
|
||||
shift = StartingIndex & 7;
|
||||
Shift = StartingIndex & 7;
|
||||
|
||||
/* number of bits to change in current byte */
|
||||
n = (NumberToClear > 8 - shift ) ? 8 - shift : NumberToClear;
|
||||
Count = (NumberToClear > 8 - Shift ) ? 8 - Shift : NumberToClear;
|
||||
|
||||
/* adjust byte */
|
||||
*p++ &= ~(~(0xFF << n) << shift);
|
||||
NumberToClear -= n;
|
||||
StartingIndex += n;
|
||||
*Ptr++ &= ~(~(0xFF << Count) << Shift);
|
||||
NumberToClear -= Count;
|
||||
StartingIndex += Count;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindClearBits (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Index;
|
||||
ULONG Count;
|
||||
PCHAR Ptr;
|
||||
CHAR Mask;
|
||||
|
||||
if (NumberToFind > Size || NumberToFind == 0)
|
||||
return -1;
|
||||
|
||||
if (HintIndex >= Size)
|
||||
HintIndex = 0;
|
||||
|
||||
Index = HintIndex;
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (Index / 8);
|
||||
Mask = 1 << (Index & 7);
|
||||
|
||||
while (HintIndex < Size)
|
||||
{
|
||||
/* count clear bits */
|
||||
for (Count = 0; Index < Size && ~*Ptr & Mask; Index++)
|
||||
{
|
||||
if (++Count >= NumberToFind)
|
||||
return HintIndex;
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
/* skip set bits */
|
||||
for (; Index < Size && *Ptr & Mask; Index++)
|
||||
{
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
HintIndex = Index;
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindClearBitsAndSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
)
|
||||
{
|
||||
ULONG Index;
|
||||
|
||||
Index = RtlFindClearBits (BitMapHeader,
|
||||
NumberToFind,
|
||||
HintIndex);
|
||||
if (Index != (ULONG)-1)
|
||||
RtlSetBits (BitMapHeader,
|
||||
Index,
|
||||
NumberToFind);
|
||||
|
||||
return Index;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindFirstRunClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Index;
|
||||
ULONG Count;
|
||||
PCHAR Ptr;
|
||||
CHAR Mask;
|
||||
|
||||
if (*StartingIndex > Size)
|
||||
{
|
||||
*StartingIndex = (ULONG)-1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
Index = *StartingIndex;
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (Index / 8);
|
||||
Mask = 1 << (Index & 7);
|
||||
|
||||
/* skip set bits */
|
||||
for (; Index < Size && *Ptr & Mask; Index++)
|
||||
{
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
/* return index of first clear bit */
|
||||
if (Index >= Size)
|
||||
{
|
||||
*StartingIndex = (ULONG)-1;
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
*StartingIndex = Index;
|
||||
|
||||
/* count clear bits */
|
||||
for (Count = 0; Index < Size && ~*Ptr & Mask; Index++)
|
||||
{
|
||||
Count++;
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
return Count;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindFirstRunSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Index;
|
||||
ULONG Count;
|
||||
PCHAR Ptr;
|
||||
CHAR Mask;
|
||||
|
||||
if (*StartingIndex > Size)
|
||||
{
|
||||
*StartingIndex = (ULONG)-1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
Index = *StartingIndex;
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (Index / 8);
|
||||
Mask = 1 << (Index & 7);
|
||||
|
||||
/* skip clear bits */
|
||||
for (; Index < Size && ~*Ptr & Mask; Index++)
|
||||
{
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
/* return index of first set bit */
|
||||
if (Index >= Size)
|
||||
{
|
||||
*StartingIndex = (ULONG)-1;
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
*StartingIndex = Index;
|
||||
|
||||
/* count set bits */
|
||||
for (Count = 0; Index < Size && *Ptr & Mask; Index++)
|
||||
{
|
||||
Count++;
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
return Count;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindLongestRunClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
PCHAR Ptr = (PCHAR)BitMapHeader->Buffer;
|
||||
ULONG Index = 0;
|
||||
ULONG Count;
|
||||
ULONG Max = 0;
|
||||
ULONG Start;
|
||||
ULONG Maxstart = 0;
|
||||
CHAR Mask = 1;
|
||||
|
||||
while (Index < Size)
|
||||
{
|
||||
Start = Index;
|
||||
|
||||
/* count clear bits */
|
||||
for (Count = 0; Index < Size && ~*Ptr & Mask; Index++)
|
||||
{
|
||||
Count++;
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
/* skip set bits */
|
||||
for (; Index < Size && *Ptr & Mask; Index++)
|
||||
{
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
if (Count > Max)
|
||||
{
|
||||
Max = Count;
|
||||
Maxstart = Start;
|
||||
}
|
||||
}
|
||||
|
||||
if (StartingIndex)
|
||||
*StartingIndex = Maxstart;
|
||||
|
||||
return Max;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindLongestRunSet (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
PULONG StartingIndex
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
PCHAR Ptr = (PCHAR)BitMapHeader->Buffer;
|
||||
ULONG Index = 0;
|
||||
ULONG Count;
|
||||
ULONG Max = 0;
|
||||
ULONG Start;
|
||||
ULONG Maxstart = 0;
|
||||
CHAR Mask = 1;
|
||||
|
||||
while (Index < Size)
|
||||
{
|
||||
Start = Index;
|
||||
|
||||
/* count set bits */
|
||||
for (Count = 0; Index < Size && *Ptr & Mask; Index++)
|
||||
{
|
||||
Count++;
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
/* skip clear bits */
|
||||
for (; Index < Size && ~*Ptr & Mask; Index++)
|
||||
{
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
if (Count > Max)
|
||||
{
|
||||
Max = Count;
|
||||
Maxstart = Start;
|
||||
}
|
||||
}
|
||||
|
||||
if (StartingIndex)
|
||||
*StartingIndex = Maxstart;
|
||||
|
||||
return Max;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindSetBits (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Index;
|
||||
ULONG Count;
|
||||
PCHAR Ptr;
|
||||
CHAR Mask;
|
||||
|
||||
if (NumberToFind > Size || NumberToFind == 0)
|
||||
return (ULONG)-1;
|
||||
|
||||
if (HintIndex >= Size)
|
||||
HintIndex = 0;
|
||||
|
||||
Index = HintIndex;
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (Index / 8);
|
||||
Mask = 1 << (Index & 7);
|
||||
|
||||
while (HintIndex < Size)
|
||||
{
|
||||
/* count set bits */
|
||||
for (Count = 0; Index < Size && *Ptr & Mask; Index++)
|
||||
{
|
||||
if (++Count >= NumberToFind)
|
||||
return HintIndex;
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
/* skip clear bits */
|
||||
for (; Index < Size && ~*Ptr & Mask; Index++)
|
||||
{
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
HintIndex = Index;
|
||||
}
|
||||
|
||||
return (ULONG)-1;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlFindSetBitsAndClear (
|
||||
PRTL_BITMAP BitMapHeader,
|
||||
ULONG NumberToFind,
|
||||
ULONG HintIndex
|
||||
)
|
||||
{
|
||||
ULONG Index;
|
||||
|
||||
Index = RtlFindSetBits (BitMapHeader,
|
||||
NumberToFind,
|
||||
HintIndex);
|
||||
if (Index != (ULONG)-1)
|
||||
RtlClearBits (BitMapHeader,
|
||||
Index,
|
||||
NumberToFind);
|
||||
|
||||
return Index;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlNumberOfClearBits (
|
||||
PRTL_BITMAP BitMapHeader
|
||||
)
|
||||
{
|
||||
PCHAR Ptr = (PCHAR)BitMapHeader->Buffer;
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Index;
|
||||
ULONG Count;
|
||||
CHAR Mask;
|
||||
|
||||
for (Mask = 1, Index = 0, Count = 0; Index < Size; Index++)
|
||||
{
|
||||
if (~*Ptr & Mask)
|
||||
Count++;
|
||||
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
return Count;
|
||||
}
|
||||
|
||||
|
||||
ULONG
|
||||
STDCALL
|
||||
RtlNumberOfSetBits (
|
||||
PRTL_BITMAP BitMapHeader
|
||||
)
|
||||
{
|
||||
PCHAR Ptr = (PCHAR)BitMapHeader->Buffer;
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG Index;
|
||||
ULONG Count;
|
||||
CHAR Mask;
|
||||
|
||||
for (Mask = 1, Index = 0, Count = 0; Index < Size; Index++)
|
||||
{
|
||||
if (*Ptr & Mask)
|
||||
Count++;
|
||||
|
||||
Mask <<= 1;
|
||||
if (Mask == 0)
|
||||
{
|
||||
Mask = 1;
|
||||
Ptr++;
|
||||
}
|
||||
}
|
||||
|
||||
return Count;
|
||||
}
|
||||
|
||||
|
||||
VOID
|
||||
STDCALL
|
||||
RtlSetAllBits (
|
||||
|
|
@ -86,6 +610,7 @@ RtlSetAllBits (
|
|||
ALIGN(BitMapHeader->SizeOfBitMap, 8));
|
||||
}
|
||||
|
||||
|
||||
VOID
|
||||
STDCALL
|
||||
RtlSetBits (
|
||||
|
|
@ -95,9 +620,9 @@ RtlSetBits (
|
|||
)
|
||||
{
|
||||
ULONG Size = BitMapHeader->SizeOfBitMap;
|
||||
ULONG n;
|
||||
ULONG shift;
|
||||
PCHAR p;
|
||||
ULONG Count;
|
||||
ULONG Shift;
|
||||
PCHAR Ptr;
|
||||
|
||||
if (StartingIndex >= Size || NumberToSet == 0)
|
||||
return;
|
||||
|
|
@ -105,21 +630,20 @@ RtlSetBits (
|
|||
if (StartingIndex + NumberToSet > Size)
|
||||
NumberToSet = Size - StartingIndex;
|
||||
|
||||
p = (PCHAR)BitMapHeader->Buffer + (StartingIndex / 8);
|
||||
Ptr = (PCHAR)BitMapHeader->Buffer + (StartingIndex / 8);
|
||||
while (NumberToSet)
|
||||
{
|
||||
/* bit shift in current byte */
|
||||
shift = StartingIndex & 7;
|
||||
Shift = StartingIndex & 7;
|
||||
|
||||
/* number of bits to change in current byte */
|
||||
n = (NumberToSet > 8 - shift) ? 8 - shift : NumberToSet;
|
||||
Count = (NumberToSet > 8 - Shift) ? 8 - Shift : NumberToSet;
|
||||
|
||||
/* adjust byte */
|
||||
*p++ |= ~( 0xFF << n ) << shift;
|
||||
NumberToSet -= n;
|
||||
StartingIndex += n;
|
||||
*Ptr++ |= ~(0xFF << Count) << Shift;
|
||||
NumberToSet -= Count;
|
||||
StartingIndex += Count;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
Loading…
Reference in a new issue