ClfsLsnNull function (wdm.h)

The ClfsLsnNull routine determines whether a specified LSN is equal to the smallest possible LSN, CLFS_LSN_NULL.

Syntax

CLFSUSER_API BOOLEAN ClfsLsnNull(
  [in] const CLFS_LSN *plsn
);

Parameters

[in] plsn

A pointer to a CLFS_LSN structure that supplies the LSN to be tested.

Return value

ClfsLsnNull returns TRUE if the LSN supplied by the caller is equal to CLFS_LSN_NULL; otherwise, it returns FALSE.

Remarks

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

See also

ClfsLsnEqual

ClfsLsnGreater

ClfsLsnLess