ClfsLsnBlockOffset function (wdm.h)
The ClfsLsnBlockOffset routine returns the sector-aligned block offset contained in a specified LSN.
Syntax
CLFSUSER_API ULONG ClfsLsnBlockOffset(
[in] const CLFS_LSN *plsn
);
Parameters
[in] plsn
A pointer to a CLFS_LSN structure from which the block offset is retrieved.
Return value
ClfsLsnBlockOffset returns the block offset contained in the LSN that is supplied by the caller.
Remarks
The block offset returned by this routine is a multiple of the sector size on the stable storage medium. For example, if the sector size is 1024 bytes, the block offset is a multiple of 1024.
For an explanation of CLFS concepts and terminology, see Common Log File System.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows Server 2003 R2, Windows Vista, and later versions of Windows. |
| Target Platform | Desktop |
| Header | wdm.h (include Wdm.h) |
| Library | Clfs.lib |
| DLL | Clfs.sys |
| IRQL | Any level |