#ifndef GUID_DEFINED
    #define GUID_DEFINED
    typedef struct _GUID {
        ULONG   Data1;
        USHORT  Data2;
        USHORT  Data3;
        UCHAR   Data4[8];
    } GUID;
#endif // !defined(GUID_DEFINED)

#ifndef __IID_DEFINED__
    #define __IID_DEFINED__

    typedef GUID IID;
    typedef IID *LPIID;
    #define IID_NULL            GUID_NULL
    #define IsEqualIID(riid1, riid2) IsEqualGUID(riid1, riid2)
    typedef GUID CLSID;
    typedef CLSID *LPCLSID;
    #define CLSID_NULL          GUID_NULL
    #define IsEqualCLSID(rclsid1, rclsid2) IsEqualGUID(rclsid1, rclsid2)
    typedef GUID FMTID;
    typedef FMTID *LPFMTID;
    #define FMTID_NULL          GUID_NULL
    #define IsEqualFMTID(rfmtid1, rfmtid2) IsEqualGUID(rfmtid1, rfmtid2)

    #ifdef __cplusplus
        #ifndef _REFGUID_DEFINED
            #define _REFGUID_DEFINED
            #define REFGUID const GUID &
        #endif // !_REFGUID_DEFINED
    #else // !__cplusplus
        #ifndef _REFGUID_DEFINED
            #define _REFGUID_DEFINED
            #define REFGUID const GUID * const
        #endif // !_REFGUID_DEFINED
    #endif // !__cplusplus

    #ifdef __cplusplus
        #ifndef _REFIID_DEFINED
            #define _REFIID_DEFINED
            #define REFIID const IID &
        #endif // !_REFIID_DEFINED
    #else // !__cplusplus
        #ifndef _REFIID_DEFINED
            #define _REFIID_DEFINED
            #define REFIID const IID * const
        #endif // !_REFIID_DEFINED
    #endif // !__cplusplus

    #ifdef __cplusplus
        #ifndef _REFCLSID_DEFINED
            #define _REFCLSID_DEFINED
            #define REFCLSID const IID &
        #endif // !_REFCLSID_DEFINED
    #else // !__cplusplus
        #ifndef _REFCLSID_DEFINED
            #define _REFCLSID_DEFINED
            #define REFCLSID const IID * const
        #endif // !_REFCLSID_DEFINED
    #endif // !__cplusplus

    #ifdef __cplusplus
        #ifndef _REFFMTID_DEFINED
            #define _REFFMTID_DEFINED
            #define REFFMTID const IID &
        #endif // !_REFFMTID_DEFINED
    #else // !__cplusplus
        #ifndef _REFFMTID_DEFINED
            #define _REFFMTID_DEFINED
            #define REFFMTID const IID * const
        #endif // !_REFFMTID_DEFINED
    #endif // !__cplusplus

    #if defined(_NTDDK_) || defined(_NTHAL_)
        #ifdef __cplusplus
            inline int IsEqualGUID(REFGUID guid1, REFGUID guid2)
            {
                return !memcmp(&guid1, &guid2, sizeof(GUID));
            }
        #else // !__cplusplus
            #define IsEqualGUID(guid1, guid2) \
                (!memcmp((guid1), (guid2), sizeof(GUID)))
        #endif // !__cplusplus
    #endif // _NTDDK_

#endif // !__IID_DEFINED__

#ifndef __IID_ALIGNED__
    #define __IID_ALIGNED__
    #ifdef __cplusplus
        inline int IsEqualGUIDAligned(REFGUID guid1, REFGUID guid2)
        {
            return ((*(PLONGLONG)(&guid1) == *(PLONGLONG)(&guid2)) && (*((PLONGLONG)(&guid1) + 1) == *((PLONGLONG)(&guid2) + 1)));
        }
    #else // !__cplusplus
        #define IsEqualGUIDAligned(guid1, guid2) \
            ((*(PLONGLONG)(guid1) == *(PLONGLONG)(guid2)) && (*((PLONGLONG)(guid1) + 1) == *((PLONGLONG)(guid2) + 1)))
    #endif // !__cplusplus
#endif // !__IID_ALIGNED__

NTSYSAPI
NTSTATUS
NTAPI
RtlStringFromGUID(
    IN REFGUID Guid,
    OUT PUNICODE_STRING GuidString
    );

NTSYSAPI
NTSTATUS
NTAPI
RtlGUIDFromString(
    IN PUNICODE_STRING GuidString,
    OUT GUID* Guid
    );

//
// Fast primitives to compare, move, and zero memory
//


#define RtlEqualMemory(Destination,Source,Length) (!memcmp((Destination),(Source),(Length)))
#define RtlMoveMemory(Destination,Source,Length) memmove((Destination),(Source),(Length))
#define RtlCopyMemory(Destination,Source,Length) memcpy((Destination),(Source),(Length))
#define RtlFillMemory(Destination,Length,Fill) memset((Destination),(Fill),(Length))
#define RtlZeroMemory(Destination,Length) memset((Destination),0,(Length))


NTSYSAPI
ULONG
NTAPI
RtlCompareMemory (
    const VOID *Source1,
    const VOID *Source2,
    ULONG Length
    );

#if defined(_M_ALPHA)

//
// Guaranteed byte granularity memory copy function.
//

NTSYSAPI
VOID
NTAPI
RtlCopyBytes (
   PVOID Destination,
   CONST VOID *Source,
   ULONG Length
   );

//
// Guaranteed byte granularity memory zero function.
//

NTSYSAPI
VOID
NTAPI
RtlZeroBytes (
   PVOID Destination,
   ULONG Length
   );

//
// Guaranteed byte granularity memory fill function.
//

NTSYSAPI
VOID
NTAPI
RtlFillBytes (
    PVOID Destination,
    ULONG Length,
    UCHAR Fill
    );

#else

#define RtlCopyBytes RtlCopyMemory
#define RtlZeroBytes RtlZeroMemory
#define RtlFillBytes RtlFillMemory

#endif

//
// Define kernel debugger print prototypes and macros.
//
// N.B. The following function cannot be directly imported because there are
//      a few places in the source tree where this function is redefined.
//

VOID
NTAPI
DbgBreakPoint(
    VOID
    );


#define DBG_STATUS_CONTROL_C        1
#define DBG_STATUS_SYSRQ            2
#define DBG_STATUS_BUGCHECK_FIRST   3
#define DBG_STATUS_BUGCHECK_SECOND  4
#define DBG_STATUS_FATAL            5

#if DBG

#define KdPrint(_x_) DbgPrint _x_
#define KdBreakPoint() DbgBreakPoint()


#else

#define KdPrint(_x_)
#define KdBreakPoint()

#endif

#ifndef _DBGNT_

ULONG
_cdecl
DbgPrint(
    PCH Format,
    ...
    );

#endif // _DBGNT_
//
// Large integer arithmetic routines.
//

#if defined(MIDL_PASS) || defined(__cplusplus) || !defined(_M_IX86)

//
// Large integer add - 64-bits + 64-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerAdd (
    LARGE_INTEGER Addend1,
    LARGE_INTEGER Addend2
    );

//
// Enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlEnlargedIntegerMultiply (
    LONG Multiplicand,
    LONG Multiplier
    );

//
// Unsigned enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlEnlargedUnsignedMultiply (
    ULONG Multiplicand,
    ULONG Multiplier
    );

//
// Enlarged integer divide - 64-bits / 32-bits > 32-bits
//

NTSYSAPI
ULONG
NTAPI
RtlEnlargedUnsignedDivide (
    IN ULARGE_INTEGER Dividend,
    IN ULONG Divisor,
    IN PULONG Remainder
    );


//
// Large integer negation - -(64-bits)
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerNegate (
    LARGE_INTEGER Subtrahend
    );

//
// Large integer subtract - 64-bits - 64-bits -> 64-bits.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlLargeIntegerSubtract (
    LARGE_INTEGER Minuend,
    LARGE_INTEGER Subtrahend
    );

#else

#pragma warning(disable:4035)               // re-enable below

//
// Large integer add - 64-bits + 64-bits -> 64-bits
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerAdd (
    LARGE_INTEGER Addend1,
    LARGE_INTEGER Addend2
    )
{
    __asm {
        mov     eax,Addend1.LowPart     ; (eax)=add1.low
        mov     edx,Addend1.HighPart    ; (edx)=add1.hi
        add     eax,Addend2.LowPart     ; (eax)=sum.low
        adc     edx,Addend2.HighPart    ; (edx)=sum.hi
    }
}

//
// Enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

__inline LARGE_INTEGER
NTAPI
RtlEnlargedIntegerMultiply (
    LONG Multiplicand,
    LONG Multiplier
    )
{
    __asm {
        mov     eax, Multiplicand
        imul    Multiplier
    }
}

//
// Unsigned enlarged integer multiply - 32-bits * 32-bits -> 64-bits
//

__inline LARGE_INTEGER
NTAPI
RtlEnlargedUnsignedMultiply (
    ULONG Multiplicand,
    ULONG Multiplier
    )
{
    __asm {
        mov     eax, Multiplicand
        mul     Multiplier
    }
}

//
// Enlarged integer divide - 64-bits / 32-bits > 32-bits
//

__inline ULONG
NTAPI
RtlEnlargedUnsignedDivide (
    IN ULARGE_INTEGER Dividend,
    IN ULONG Divisor,
    IN PULONG Remainder
    )
{
    __asm {
        mov     eax, Dividend.LowPart
        mov     edx, Dividend.HighPart
        mov     ecx, Remainder
        div     Divisor             ; eax = eax:edx / divisor
        or      ecx, ecx            ; save remainer?
        jz      short done
        mov     [ecx], edx
done:
    }
}


//
// Large integer negation - -(64-bits)
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerNegate (
    LARGE_INTEGER Subtrahend
    )
{
    __asm {
        mov     eax, Subtrahend.LowPart
        mov     edx, Subtrahend.HighPart
        neg     edx                 ; (edx) = 2s comp of hi part
        neg     eax                 ; if ((eax) == 0) CF = 0
                                    ; else CF = 1
        sbb     edx,0               ; (edx) = (edx) - CF
    }
}

//
// Large integer subtract - 64-bits - 64-bits -> 64-bits.
//

__inline LARGE_INTEGER
NTAPI
RtlLargeIntegerSubtract (
    LARGE_INTEGER Minuend,
    LARGE_INTEGER Subtrahend
    )
{
    __asm {
        mov     eax, Minuend.LowPart
        mov     edx, Minuend.HighPart
        sub     eax, Subtrahend.LowPart
        sbb     edx, Subtrahend.HighPart
    }
}

#pragma warning(default:4035)
#endif


//
// Extended large integer magic divide - 64-bits / 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlExtendedMagicDivide (
    LARGE_INTEGER Dividend,
    LARGE_INTEGER MagicDivisor,
    CCHAR ShiftCount
    );

//
// Large Integer divide - 64-bits / 32-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlExtendedLargeIntegerDivide (
    LARGE_INTEGER Dividend,
    ULONG Divisor,
    PULONG Remainder
    );

//
// Extended integer multiply - 32-bits * 64-bits -> 64-bits
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlExtendedIntegerMultiply (
    LARGE_INTEGER Multiplicand,
    LONG Multiplier
    );

//
// Large integer and - 64-bite & 64-bits -> 64-bits.
//

#define RtlLargeIntegerAnd(Result, Source, Mask)   \
        {                                           \
            Result.HighPart = Source.HighPart & Mask.HighPart; \
            Result.LowPart = Source.LowPart & Mask.LowPart; \
        }

//
// Large integer conversion routines.
//

#if defined(MIDL_PASS) || defined(__cplusplus) || !defined(_M_IX86)

//
// Convert signed integer to large integer.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlConvertLongToLargeInteger (
    LONG SignedInteger
    );

//
// Convert unsigned integer to large integer.
//

NTSYSAPI
LARGE_INTEGER
NTAPI
RtlConvertUlongToLargeInteger (