errtostatus.h File Reference

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Classes
struct	_ERROR_BUCKET

Typedefs
typedef struct _ERROR_BUCKET	ERROR_BUCKET
typedef struct _ERROR_BUCKET *	PERROR_BUCKET

Functions
BOOL	ConvertWinErrorToNtstatus (__in ULONG WinError, __out NTSTATUS *Status)
NTSTATUS	WinErrorToNtStatus (__in ULONG WinError)

Variables
const NTSTATUS	INVALID_STATUS = (ULONG)(-1)
CONST NTSTATUS	ErrorTable []
CONST ERROR_BUCKET	ErrorBucketTable []

Typedef Documentation

ERROR_BUCKET

typedef struct _ERROR_BUCKET ERROR_BUCKET

PERROR_BUCKET

typedef struct _ERROR_BUCKET * PERROR_BUCKET

Function Documentation

ConvertWinErrorToNtstatus()

BOOL ConvertWinErrorToNtstatus	(	__in ULONG	WinError,
		__out NTSTATUS *	Status
	)

Definition at line 7 of file errtostatus.cpp.

{
    ULONG index = 0;
    BOOL found = FALSE;
 
    *Status = INVALID_STATUS;
 
    for ( ULONG i = 0; i < ARRAYSIZE(ErrorBucketTable); i++ )
    {
        if (WinError < ErrorBucketTable[i].BaseErrorCode)
        {
            //
            // The error code falls between previous bucket end and current
            // bucket begin, hence there is no mapping for it
            //
            break;
        }
 
        if ( WinError < (ErrorBucketTable[i].BaseErrorCode +
                                                ErrorBucketTable[i].RunLength) )
        {
            //
            // Index falls within the current bucket
            //
            index += (WinError - ErrorBucketTable[i].BaseErrorCode);
            found = TRUE;
            break;
        }
        else
        {
            //
            // Index is beyond current bucket, continue search
            //
            index += ErrorBucketTable[i].RunLength;
        }
    }
 
    if (TRUE == found)
    {
        *Status = ErrorTable[index];
        if (INVALID_STATUS == (*Status))
        {
            found = FALSE;
        }
    }
 
    return found;
}

Referenced by WinErrorToNtStatus().

WinErrorToNtStatus()

NTSTATUS WinErrorToNtStatus

(

__in ULONG

WinError

)

Definition at line 60 of file errtostatus.cpp.

{
    NTSTATUS status;
 
    if (TRUE == ConvertWinErrorToNtstatus(WinError, &status))
    {
        return status;
    }
    else
    {
        return STATUS_UNSUCCESSFUL;
    }
}

Referenced by __drv_when(), FxDriver::_InitializeDriverName(), DoTraceLevelMessage(), if(), and _MdTimer::Initialize().

Variable Documentation

ErrorBucketTable

CONST ERROR_BUCKET ErrorBucketTable[]

Definition at line 1740 of file errtostatus.h.

Referenced by ConvertWinErrorToNtstatus().

ErrorTable

CONST NTSTATUS ErrorTable[]

Definition at line 17 of file errtostatus.h.

Referenced by ConvertWinErrorToNtstatus().

INVALID_STATUS

const NTSTATUS INVALID_STATUS = (ULONG)(-1)

Definition at line 15 of file errtostatus.h.

Referenced by ConvertWinErrorToNtstatus().