Hinweis
Für den Zugriff auf diese Seite ist eine Autorisierung erforderlich. Sie können versuchen, sich anzumelden oder das Verzeichnis zu wechseln.
Für den Zugriff auf diese Seite ist eine Autorisierung erforderlich. Sie können versuchen, das Verzeichnis zu wechseln.
The server provides:
Open: An Open of a DataStream or DirectoryStream.
OutputBufferSize: The maximum number of bytes to return in OutputBuffer.
On completion, the object store MUST return:
Status: An NTSTATUS code that specifies the result.
OutputBuffer: An array of bytes that will return a USHORT value representing the compression state of the stream, as specified in [MS-FSCC] section 2.3.18.
BytesReturned: The number of bytes returned in OutputBuffer.
Support for this operation is optional. If the object store does not implement this functionality, the operation MUST be failed with STATUS_INVALID_DEVICE_REQUEST.<102>
Pseudocode for the operation is as follows:
If OutputBufferSize is less than sizeof(USHORT) (2 bytes), the operation MUST be failed with STATUS_INVALID_PARAMETER.
If Open.Stream.StreamType is DirectoryStream:
If Open.File.FileAttributes.FILE_ATTRIBUTE_COMPRESSED is TRUE:
The object store MUST set OutputBuffer.CompressionState to COMPRESSION_FORMAT_LZNT1.
Else:
The object store MUST set OutputBuffer.CompressionState to COMPRESSION_FORMAT_NONE.
EndIf
Else:
If Open.Stream.IsCompressed is TRUE:
The object store MUST set OutputBuffer.CompressionState to COMPRESSION_FORMAT_LZNT1.
Else:
The object store MUST set OutputBuffer.CompressionState to COMPRESSION_FORMAT_NONE.
EndIf
EndIf
Upon successful completion of the operation, the object store MUST return:
BytesReturned set to sizeof(USHORT) (2 bytes).
Status set to STATUS_SUCCESS.